Render delivery attempt detail in the event log (closes #202 )

Expanding a delivery on the event log page now shows each recorded attempt: attempt number, outcome, status code, duration, error and response body. Previously a failure rendered as "target: failed" and diagnosing it meant opening the per-webhook SQLite file by hand. The response body is cut by SQLite via substr over a blob cast, the same projection the event body uses, so an oversized stored response never becomes a Go string. The page reports the cut with a marker. Response bodies and errors are remote content, so both go through a new delivery.Redactor that strips the target's own destination URL, path, query and userinfo, plus the values of credential-shaped request headers, before rendering. Target configuration keeps reaching the template only as a TargetView. A body that reaches the cap is treated as cut whether or not SQLite is what cut it. The delivery engine stops reading a response at its own cap, which is the same number of bytes this page renders, and the row it writes records that cut length as the whole length, so nothing in the row separates a response that ended at the cap from one severed there. Such a body goes through RedactCut, which drops any tail that is a proper prefix of a secret: the remote chooses the padding in front of a credential it echoes, so it chooses where the cut falls inside that credential. Its marker says the response reached the recording limit rather than quoting a total the row does not know. Redactors are built from an unscoped target load. Deleting a target only soft deletes the row while its deliveries survive, and a scoped load would leave exactly those deliveries rendering unredacted. The views the page lists stay scoped. Attempt loading is chunked so the IN clause cannot exceed SQLite's bound-parameter limit, and a chunk that fails fails the page rather than rendering the deliveries it covered as never having run. The page renders at most 20 attempts per delivery, counting what it leaves out. static/css/tailwind.css is regenerated with tailwindcss for the utility classes the new markup uses.
2026-08-20 06:06:44 +00:00
13 changed files with 27 additions and 1254 deletions
--- a/README.md
+++ b/README.md
@@ -1108,23 +1108,6 @@ DeliveryResults.
  succeeded).
 - **`failed`** — All retry attempts exhausted without success.
 **Replay.** A `delivered` or `failed` delivery is finished as far as
 the engine is concerned, but the event is still stored, so the event
 log offers a per-delivery **Replay** action for it. Replay creates a
 NEW `pending` delivery for the same event and target and hands it to
 the engine on the ordinary path — same retries, same SSRF guard, same
 circuit breaker as a first attempt. It never touches the delivery it
 repeats: that row's status, timestamps and recorded attempts stand as
 the record of what happened.
 What is re-sent is the stored event body, against the target's
 configuration **as it stands now** — the point of a replay is to
 deliver where the destination has since been fixed. A target that has
 been deleted or deactivated therefore refuses the replay with a
 message on the event log rather than delivering from stale
 configuration, and a replay is refused while an earlier one for the
 same event and target is still pending or retrying.
 #### DeliveryResult
 The result of a single delivery attempt. Every attempt (including
@@ -1456,7 +1439,6 @@ arriving and being stored, they are just not getting anywhere.
 | `webhooker_deliveries_succeeded_total` | counter | Deliveries that reached `delivered` |
 | `webhooker_deliveries_failed_total` | counter | Deliveries that failed terminally and will not be retried |
 | `webhooker_delivery_retries_total` | counter | Deliveries put back into `retrying` |
 | `webhooker_delivery_replays_total` | counter | Deliveries an operator replayed from the event log. A replay runs the ordinary engine path, so it also moves the attempt, outcome and duration series; this is the only one that separates it from ordinary traffic |
 | `webhooker_delivery_duration_seconds` | histogram | Wall time of a single dispatched delivery attempt, the same duration the attempt's `DeliveryResult` records |
 | `webhooker_deliveries_pending` | gauge | Deliveries currently in `pending` |
 | `webhooker_deliveries_retrying` | gauge | Deliveries currently in `retrying` |
@@ -2054,7 +2036,6 @@ abuse limit later; they are tracked as future work.
 | `POST` | `/source/{id}/edit`      | Edit webhook submission |
 | `POST` | `/source/{id}/delete`    | Delete webhook |
 | `GET`  | `/source/{id}/logs`      | Webhook event logs |
 | `POST` | `/source/{id}/deliveries/{deliveryID}/replay` | Replay a finished delivery: creates a new delivery for the same event against the target's current configuration (30 per minute per bucket, then `429`) |
 | `POST` | `/source/{id}/entrypoints` | Add entrypoint to webhook |
 | `POST` | `/source/{id}/entrypoints/{entrypointID}/delete` | Delete an entrypoint |
 | `POST` | `/source/{id}/entrypoints/{entrypointID}/toggle` | Enable or disable an entrypoint |
@@ -2144,7 +2125,6 @@ webhooker/
 │   ├── handlers/
 │   │   ├── handlers.go        # Base handler struct, JSON helpers, template rendering
 │   │   ├── auth.go            # Login, logout handlers
 │   │   ├── delivery_replay.go # Per-delivery replay: new delivery, current target config
 │   │   ├── entrypoint_view.go # Masked entrypoint view for templates
 │   │   ├── event_log_view.go  # Event log projection, byte-capped in SQL
 │   │   ├── healthcheck.go     # Health check handler
--- a/internal/database/model_delivery.go
+++ b/internal/database/model_delivery.go
@@ -11,23 +11,6 @@ const (
 	DeliveryStatusRetrying  DeliveryStatus = "retrying"
 )
 // Terminal reports whether a delivery in this status has finished, so
 // the delivery engine will make no further attempt of its own.
 //
 // It is what decides which deliveries the event log offers to replay:
 // a pending or retrying delivery is still the engine's, and replaying
 // one would race it.
 func (s DeliveryStatus) Terminal() bool {
 	switch s {
 	case DeliveryStatusDelivered, DeliveryStatusFailed:
 		return true
 	case DeliveryStatusPending, DeliveryStatusRetrying:
 		return false
 	default:
 		return false
 	}
 }
 // Delivery represents a delivery attempt for an event to a target
 type Delivery struct {
 	BaseModel
--- a/internal/handlers/delivery_replay.go
+++ b/internal/handlers/delivery_replay.go
@@ -1,378 +0,0 @@
 package handlers
 import (
 	"net/http"
 	"strconv"
 	"github.com/go-chi/chi"
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"sneak.berlin/go/webhooker/internal/database"
 	"sneak.berlin/go/webhooker/internal/delivery"
 )
 // replayOutcomeParam is the query parameter the replay POST redirects
 // with and the event log page reads its banner from.
 const replayOutcomeParam = "replay"
 // replayOutcomeCode is the outcome of a replay POST. The redirect
 // carries one of these fixed codes rather than a message, so nothing a
 // client submits can reach the rendered page through it.
 type replayOutcomeCode string
 const (
 	// replayQueued reports that a new delivery was created and handed
 	// to the delivery engine.
 	replayQueued replayOutcomeCode = "queued"
 	// replayTargetDeleted reports a target that once existed and has
 	// since been deleted. Deletes are soft and deliveries carry no
 	// foreign key to the target row, so the history survives its
 	// target and this is the ordinary case for an old event.
 	replayTargetDeleted replayOutcomeCode = "target-deleted"
 	// replayTargetMissing reports a target id that names no row at
 	// all, deleted or otherwise.
 	replayTargetMissing replayOutcomeCode = "target-missing"
 	// replayTargetInactive reports a target the operator has
 	// deactivated. A deactivated target receives no new deliveries, so
 	// a replay to it would be a delivery they switched off.
 	replayTargetInactive replayOutcomeCode = "target-inactive"
 	// replayNotTerminal reports a delivery the engine has not finished
 	// with.
 	replayNotTerminal replayOutcomeCode = "not-terminal"
 	// replayInFlight reports that an earlier replay of this event to
 	// this target is still running.
 	replayInFlight replayOutcomeCode = "in-flight"
 )
 // replayOutcome returns the banner the event log page shows for an
 // outcome code, and whether the replay was queued. An unrecognised
 // code yields no banner.
 func replayOutcome(code string) (string, bool) {
 	switch replayOutcomeCode(code) {
 	case replayQueued:
 		return "Replay queued: a new delivery was created against " +
 			"the target's current configuration.", true
 	case replayTargetDeleted:
 		return "Not replayed: the target this delivery was for has " +
 			"been deleted. Recreate the target, then replay.", false
 	case replayTargetMissing:
 		return "Not replayed: the target this delivery was for no " +
 			"longer exists.", false
 	case replayTargetInactive:
 		return "Not replayed: the target this delivery was for is " +
 			"deactivated. Activate it, then replay.", false
 	case replayNotTerminal:
 		return "Not replayed: this delivery has not finished yet.",
 			false
 	case replayInFlight:
 		return "Not replayed: a delivery of this event to this " +
 			"target is already in flight.", false
 	default:
 		return "", false
 	}
 }
 // HandleDeliveryReplay re-sends a finished delivery's event to its
 // target.
 //
 // A replay never touches the delivery it repeats. It creates a NEW
 // pending delivery row for the same event and target and hands it to
 // the delivery engine through the same Notifier the receiver uses, so
 // the original's status, attempts and timestamps stand as the record
 // of what actually happened, and the replay is retried, SSRF-guarded
 // and circuit-broken exactly as a first attempt is.
 //
 // What is re-sent is the stored EVENT body, never the response the
 // original delivery received.
 //
 // The target's configuration is read now rather than as it stood when
 // the original ran: a replay exists to deliver where the operator
 // currently wants the event to go. That is also why a deleted target
 // is refused rather than delivered to from stale configuration.
 func (h *Handlers) HandleDeliveryReplay() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		webhook, ok := h.ownedWebhook(w, r)
 		if !ok {
 			return
 		}
 		// The body size cap is enforced by the MaxBodySize
 		// middleware, which runs before CSRF parses the form.
 		err := r.ParseForm()
 		if err != nil {
 			http.Error(
 				w, "Bad request", http.StatusBadRequest,
 			)
 			return
 		}
 		h.replayDelivery(w, r, webhook)
 	}
 }
 // replayDelivery performs the replay for a webhook the caller has
 // already established the session's user owns.
 func (h *Handlers) replayDelivery(
 	w http.ResponseWriter,
 	r *http.Request,
 	webhook database.Webhook,
 ) {
 	if !h.dbMgr.DBExists(webhook.ID) {
 		http.NotFound(w, r)
 		return
 	}
 	webhookDB, err := h.dbMgr.GetDB(webhook.ID)
 	if err != nil {
 		h.serverError(w, "failed to get webhook database", err)
 		return
 	}
 	original, ok := h.loadReplaySource(w, r, webhookDB)
 	if !ok {
 		return
 	}
 	if !original.Status.Terminal() {
 		h.finishReplay(w, r, webhook, replayNotTerminal)
 		return
 	}
 	target, code := h.replayTarget(webhook.ID, original.TargetID)
 	if target == nil {
 		h.finishReplay(w, r, webhook, code)
 		return
 	}
 	h.queueReplay(w, r, webhookDB, webhook, original, target)
 }
 // loadReplaySource loads the delivery to be replayed, selecting only
 // the columns the replay needs so no association is populated. A
 // delivery id that names no row in this webhook's database is a 404.
 func (h *Handlers) loadReplaySource(
 	w http.ResponseWriter,
 	r *http.Request,
 	webhookDB *gorm.DB,
 ) (*database.Delivery, bool) {
 	var original database.Delivery
 	err := webhookDB.
 		Select("id", "event_id", "target_id", "status").
 		First(
 			&original, "id = ?", chi.URLParam(r, "deliveryID"),
 		).Error
 	if err != nil {
 		http.NotFound(w, r)
 		return nil, false
 	}
 	return &original, true
 }
 // queueReplay writes the new delivery and hands it to the engine.
 func (h *Handlers) queueReplay(
 	w http.ResponseWriter,
 	r *http.Request,
 	webhookDB *gorm.DB,
 	webhook database.Webhook,
 	original *database.Delivery,
 	target *database.Target,
 ) {
 	inFlight, err := countInFlightDeliveries(
 		webhookDB, original.EventID, target.ID,
 	)
 	if err != nil {
 		h.serverError(
 			w, "failed to count in-flight deliveries", err,
 		)
 		return
 	}
 	if inFlight > 0 {
 		h.finishReplay(w, r, webhook, replayInFlight)
 		return
 	}
 	var event database.Event
 	err = webhookDB.
 		First(&event, "id = ?", original.EventID).Error
 	if err != nil {
 		h.serverError(w, "failed to load event for replay", err)
 		return
 	}
 	task, err := createReplayDelivery(
 		webhookDB, webhook.ID, &event, target,
 	)
 	if err != nil {
 		h.serverError(
 			w, "failed to create replay delivery", err,
 		)
 		return
 	}
 	h.mtr.DeliveryReplayed(target.Type)
 	h.notifier.Notify([]delivery.Task{task})
 	h.log.Info(
 		"delivery replay queued",
 		"webhook_id", webhook.ID,
 		"event_id", event.ID,
 		"target_id", target.ID,
 		"replayed_delivery_id", original.ID,
 		"delivery_id", task.DeliveryID,
 	)
 	h.finishReplay(w, r, webhook, replayQueued)
 }
 // replayTarget loads the delivery's target as it stands now.
 //
 // The load is Unscoped so that a soft-deleted row is still found:
 // deletes are soft and a delivery carries no foreign key to its
 // target, so a target's history outlives it, and without the deleted
 // row there is no way to tell "you deleted this target" from "this id
 // never named anything". A nil target means the replay is refused,
 // with the returned code saying why.
 func (h *Handlers) replayTarget(
 	webhookID, targetID string,
 ) (*database.Target, replayOutcomeCode) {
 	var target database.Target
 	err := h.db.DB().Unscoped().Where(
 		"id = ? AND webhook_id = ?", targetID, webhookID,
 	).First(&target).Error
 	if err != nil {
 		return nil, replayTargetMissing
 	}
 	if target.DeletedAt.Valid {
 		return nil, replayTargetDeleted
 	}
 	if !target.Active {
 		return nil, replayTargetInactive
 	}
 	return &target, replayQueued
 }
 // countInFlightDeliveries reports how many deliveries of this event to
 // this target the engine has not finished.
 //
 // It is the replay-storm guard: a replay is refused while an earlier
 // one is still pending or retrying, so a held-down button or a scripted
 // loop cannot stack copies of work already queued. It is a check and
 // not a lock, so two simultaneous POSTs can still both pass it; the
 // per-client rate limit on the route is what bounds that.
 func countInFlightDeliveries(
 	webhookDB *gorm.DB, eventID, targetID string,
 ) (int64, error) {
 	var count int64
 	err := webhookDB.Model(&database.Delivery{}).Where(
 		"event_id = ? AND target_id = ? AND status IN ?",
 		eventID, targetID,
 		[]database.DeliveryStatus{
 			database.DeliveryStatusPending,
 			database.DeliveryStatusRetrying,
 		},
 	).Count(&count).Error
 	return count, err
 }
 // createReplayDelivery writes the new pending delivery row and returns
 // the task that carries it to the delivery engine.
 //
 // The row is written with associations omitted, and neither Event nor
 // Target is populated on it: GORM's SaveBeforeAssociations would
 // otherwise upsert the whole target row — plaintext config, which for a
 // Slack target is the credential — into the per-webhook event database.
 // See https://git.eeqj.de/sneak/webhooker/issues/206.
 func createReplayDelivery(
 	webhookDB *gorm.DB,
 	webhookID string,
 	event *database.Event,
 	target *database.Target,
 ) (delivery.Task, error) {
 	dlv := &database.Delivery{
 		EventID:  event.ID,
 		TargetID: target.ID,
 		Status:   database.DeliveryStatusPending,
 	}
 	err := webhookDB.Omit(clause.Associations).Create(dlv).Error
 	if err != nil {
 		return delivery.Task{}, err
 	}
 	return delivery.Task{
 		DeliveryID:   dlv.ID,
 		EventID:      event.ID,
 		WebhookID:    webhookID,
 		EntrypointID: event.EntrypointID,
 		TargetID:     target.ID,
 		TargetName:   target.Name,
 		TargetType:   target.Type,
 		TargetConfig: target.Config,
 		MaxRetries:   target.MaxRetries,
 		Method:       event.Method,
 		Headers:      event.Headers,
 		ContentType:  event.ContentType,
 		Body:         replayBody(event.Body),
 		AttemptNum:   1,
 	}, nil
 }
 // replayBody returns the stored event body for a replay task to carry
 // inline, or nil when it is large enough that the engine should fetch
 // it from the per-webhook database instead.
 func replayBody(body string) *string {
 	if len(body) >= delivery.MaxInlineBodySize {
 		return nil
 	}
 	return &body
 }
 // finishReplay redirects back to the event log the replay was
 // triggered from, carrying the outcome code the page turns into a
 // banner and the page number the form submitted.
 func (h *Handlers) finishReplay(
 	w http.ResponseWriter,
 	r *http.Request,
 	webhook database.Webhook,
 	code replayOutcomeCode,
 ) {
 	dest := "/source/" + webhook.ID + "/logs?" +
 		replayOutcomeParam + "=" + string(code)
 	// The page is read from the form rather than the query string:
 	// this is a POST, and its query string is what logs and Referer
 	// headers record.
 	if page := parseNonNegativeInt(
 		r.PostFormValue("page"),
 	); page > 1 {
 		dest += "&page=" + strconv.Itoa(page)
 	}
 	http.Redirect(w, r, dest, http.StatusSeeOther)
 }
--- a/internal/handlers/delivery_replay_test.go
+++ b/internal/handlers/delivery_replay_test.go
@@ -1,526 +0,0 @@
 package handlers_test
 import (
 	"net/http"
 	"net/http/httptest"
 	"testing"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"sneak.berlin/go/webhooker/internal/database"
 	"sneak.berlin/go/webhooker/internal/delivery"
 	"sneak.berlin/go/webhooker/internal/handlers"
 	"sneak.berlin/go/webhooker/internal/session"
 )
 // paramDeliveryID is the chi URL parameter name the replay handler
 // reads.
 const paramDeliveryID = "deliveryID"
 // replayTargetURL is a public destination, so a target configured with
 // it is one the SSRF guard would accept. Nothing in these tests
 // dispatches to it: the notifier is recorded, not run.
 const replayTargetURL = "http://93.184.216.34/hook"
 // seedFailedDelivery records an event, a terminally failed delivery of
 // it to the given target, and the attempt that failed.
 func seedFailedDelivery(
 	t *testing.T,
 	dbMgr *database.WebhookDBManager,
 	webhookID, targetID string,
 ) (*database.Event, *database.Delivery) {
 	t.Helper()
 	webhookDB, err := dbMgr.GetDB(webhookID)
 	require.NoError(t, err)
 	event := &database.Event{
 		WebhookID:    webhookID,
 		EntrypointID: "entrypoint-" + webhookID,
 		Method:       http.MethodPost,
 		Headers:      `{"X-Test":["yes"]}`,
 		Body:         `{"replay":"me"}`,
 		ContentType:  contentTypeJSON,
 	}
 	require.NoError(t, webhookDB.Omit(
 		clause.Associations,
 	).Create(event).Error)
 	dlv := &database.Delivery{
 		EventID:  event.ID,
 		TargetID: targetID,
 		Status:   database.DeliveryStatusFailed,
 	}
 	require.NoError(t, webhookDB.Omit(
 		clause.Associations,
 	).Create(dlv).Error)
 	result := &database.DeliveryResult{
 		DeliveryID: dlv.ID,
 		AttemptNum: 1,
 		Success:    false,
 		StatusCode: http.StatusBadGateway,
 		Error:      "connection refused",
 	}
 	require.NoError(t, webhookDB.Omit(
 		clause.Associations,
 	).Create(result).Error)
 	return event, dlv
 }
 // loadDelivery reads a delivery back out of a webhook's database.
 func loadDelivery(
 	t *testing.T, webhookDB *gorm.DB, deliveryID string,
 ) database.Delivery {
 	t.Helper()
 	var dlv database.Delivery
 	require.NoError(
 		t,
 		webhookDB.First(&dlv, "id = ?", deliveryID).Error,
 	)
 	return dlv
 }
 // listDeliveries reads every delivery of an event.
 func listDeliveries(
 	t *testing.T, webhookDB *gorm.DB, eventID string,
 ) []database.Delivery {
 	t.Helper()
 	var deliveries []database.Delivery
 	require.NoError(t, webhookDB.Where(
 		"event_id = ?", eventID,
 	).Find(&deliveries).Error)
 	return deliveries
 }
 // theOtherDelivery returns the one delivery in the slice that is not
 // excludeID. Identity is used rather than an ordering because the rows
 // are minted milliseconds apart and their ids are random.
 func theOtherDelivery(
 	t *testing.T,
 	deliveries []database.Delivery,
 	excludeID string,
 ) database.Delivery {
 	t.Helper()
 	var found []database.Delivery
 	for _, d := range deliveries {
 		if d.ID != excludeID {
 			found = append(found, d)
 		}
 	}
 	require.Len(t, found, 1)
 	return found[0]
 }
 // postReplay runs the real replay handler for one delivery.
 func postReplay(
 	t *testing.T,
 	h *handlers.Handlers,
 	sess *session.Session,
 	webhookID, deliveryID string,
 ) *httptest.ResponseRecorder {
 	t.Helper()
 	req := postRequest(
 		"/source/"+webhookID+"/deliveries/"+
 			deliveryID+"/replay",
 		authenticatedCookies(
 			t, sess, deleteTestUserID, deleteTestUsername,
 		),
 		map[string]string{
 			paramSourceID:   webhookID,
 			paramDeliveryID: deliveryID,
 		},
 	)
 	w := httptest.NewRecorder()
 	h.HandleDeliveryReplay().ServeHTTP(w, req)
 	return w
 }
 // TestHandleDeliveryReplay_AppendsDeliveryAndLeavesOriginal is the
 // core requirement: replaying a failed delivery succeeds, appends a
 // new delivery, and leaves the original row and its recorded attempt
 // exactly as they were.
 //
 // It also pins the two things a replay would be wrong to get from the
 // original: the task carries the target's CURRENT configuration, which
 // this test changes between the failure and the replay, and it carries
 // the stored EVENT body rather than anything the failed attempt
 // received back.
 func TestHandleDeliveryReplay_AppendsDeliveryAndLeavesOriginal(
 	t *testing.T,
 ) {
 	t.Parallel()
 	var (
 		h     *handlers.Handlers
 		sess  *session.Session
 		db    *database.Database
 		dbMgr *database.WebhookDBManager
 		notif *recordingNotifier
 	)
 	app := newTestApp(t, &h, &sess, &db, &dbMgr, &notif)
 	app.RequireStart()
 	t.Cleanup(app.RequireStop)
 	wh := seedWebhook(t, db)
 	tgt := seedConfiguredTarget(
 		t, db, wh.ID, database.TargetTypeHTTP,
 		`{"url":"`+replayTargetURL+`"}`,
 	)
 	event, original := seedFailedDelivery(
 		t, dbMgr, wh.ID, tgt.ID,
 	)
 	webhookDB, err := dbMgr.GetDB(wh.ID)
 	require.NoError(t, err)
 	before := loadDelivery(t, webhookDB, original.ID)
 	// The operator fixes the destination, which is the whole reason
 	// to replay. The replay must use this, not the config the
 	// original delivery ran against.
 	const fixedConfig = `{"url":"http://93.184.216.34/fixed"}`
 	require.NoError(t, db.DB().Model(&database.Target{}).
 		Where("id = ?", tgt.ID).
 		Update("config", fixedConfig).Error)
 	w := postReplay(t, h, sess, wh.ID, original.ID)
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=queued",
 		w.Header().Get("Location"),
 	)
 	deliveries := listDeliveries(t, webhookDB, event.ID)
 	require.Len(
 		t, deliveries, 2,
 		"replay must append a delivery, not reuse one",
 	)
 	replayed := theOtherDelivery(t, deliveries, original.ID)
 	assert.Equal(t, tgt.ID, replayed.TargetID)
 	assert.Equal(t, event.ID, replayed.EventID)
 	assert.Equal(
 		t, database.DeliveryStatusPending, replayed.Status,
 	)
 	assertDeliveryUntouched(t, webhookDB, before)
 	tasks := notif.Tasks()
 	require.Len(t, tasks, 1)
 	assertReplayTask(
 		t, tasks[0], wh.ID, event, tgt, replayed.ID, fixedConfig,
 	)
 	assertNoLeakedTarget(t, webhookDB)
 }
 // assertDeliveryUntouched proves a delivery row is exactly as it was
 // read before: same terminal status, same timestamps, and the same
 // recorded attempts.
 func assertDeliveryUntouched(
 	t *testing.T,
 	webhookDB *gorm.DB,
 	before database.Delivery,
 ) {
 	t.Helper()
 	after := loadDelivery(t, webhookDB, before.ID)
 	assert.Equal(
 		t, before.Status, after.Status,
 		"replay must not resurrect the original delivery",
 	)
 	assert.Equal(t, before.UpdatedAt, after.UpdatedAt)
 	assert.Equal(t, before.CreatedAt, after.CreatedAt)
 	var attempts int64
 	require.NoError(t, webhookDB.
 		Model(&database.DeliveryResult{}).
 		Where("delivery_id = ?", before.ID).
 		Count(&attempts).Error)
 	assert.Equal(
 		t, int64(1), attempts,
 		"the original delivery's attempt history must stand",
 	)
 }
 // assertReplayTask proves the task handed to the delivery engine is
 // the one the receiver would build for this event and this target, and
 // that it carries wantConfig — the target's configuration as it stands
 // now rather than as the original delivery ran against it.
 func assertReplayTask(
 	t *testing.T,
 	task delivery.Task,
 	webhookID string,
 	event *database.Event,
 	target *database.Target,
 	wantDeliveryID, wantConfig string,
 ) {
 	t.Helper()
 	assert.Equal(t, wantDeliveryID, task.DeliveryID)
 	assert.Equal(t, event.ID, task.EventID)
 	assert.Equal(t, webhookID, task.WebhookID)
 	assert.Equal(t, event.EntrypointID, task.EntrypointID)
 	assert.Equal(t, target.ID, task.TargetID)
 	assert.Equal(t, target.Type, task.TargetType)
 	assert.JSONEq(
 		t, wantConfig, task.TargetConfig,
 		"replay must use the target's current configuration",
 	)
 	assert.Equal(t, event.Method, task.Method)
 	assert.Equal(t, event.Headers, task.Headers)
 	assert.Equal(t, event.ContentType, task.ContentType)
 	assert.Equal(t, 1, task.AttemptNum)
 	require.NotNil(t, task.Body)
 	assert.Equal(
 		t, event.Body, *task.Body,
 		"replay re-sends the stored event body",
 	)
 }
 // assertNoLeakedTarget proves the per-webhook database holds no target
 // rows. AutoMigrate creates the table there because Delivery declares
 // the relation, so it is a ROW that signals a leak: an association
 // write would have upserted the whole target, plaintext config and
 // all, into the event database. See
 // https://git.eeqj.de/sneak/webhooker/issues/206.
 func assertNoLeakedTarget(t *testing.T, webhookDB *gorm.DB) {
 	t.Helper()
 	var leaked int64
 	require.NoError(t, webhookDB.Unscoped().
 		Model(&database.Target{}).Count(&leaked).Error)
 	assert.Zero(
 		t, leaked,
 		"replay must not write the target into the event database",
 	)
 }
 // TestHandleDeliveryReplay_RefusesDeletedTarget proves the required
 // refusal: a target deleted since the delivery ran is reported as
 // deleted rather than erroring, and nothing is created or queued.
 func TestHandleDeliveryReplay_RefusesDeletedTarget(t *testing.T) {
 	t.Parallel()
 	var (
 		h     *handlers.Handlers
 		sess  *session.Session
 		db    *database.Database
 		dbMgr *database.WebhookDBManager
 		notif *recordingNotifier
 	)
 	app := newTestApp(t, &h, &sess, &db, &dbMgr, &notif)
 	app.RequireStart()
 	t.Cleanup(app.RequireStop)
 	wh := seedWebhook(t, db)
 	tgt := seedConfiguredTarget(
 		t, db, wh.ID, database.TargetTypeHTTP,
 		`{"url":"`+replayTargetURL+`"}`,
 	)
 	event, original := seedFailedDelivery(
 		t, dbMgr, wh.ID, tgt.ID,
 	)
 	// Deletes are soft, so the delivery history outlives the target.
 	require.NoError(t, db.DB().Where(
 		"id = ?", tgt.ID,
 	).Delete(&database.Target{}).Error)
 	w := postReplay(t, h, sess, wh.ID, original.ID)
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=target-deleted",
 		w.Header().Get("Location"),
 	)
 	webhookDB, err := dbMgr.GetDB(wh.ID)
 	require.NoError(t, err)
 	assert.Len(
 		t, listDeliveries(t, webhookDB, event.ID), 1,
 		"a refused replay must create no delivery",
 	)
 	assert.Empty(
 		t, notif.Tasks(),
 		"a refused replay must queue nothing",
 	)
 	// The refusal is specific, which is why the target is looked up
 	// including soft-deleted rows: an id that never named a target
 	// is a different outcome, and a different message, from one the
 	// operator deleted.
 	_, orphan := seedFailedDelivery(
 		t, dbMgr, wh.ID, "target-that-never-existed",
 	)
 	missing := postReplay(t, h, sess, wh.ID, orphan.ID)
 	require.Equal(t, http.StatusSeeOther, missing.Code)
 	assert.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=target-missing",
 		missing.Header().Get("Location"),
 	)
 }
 // TestHandleDeliveryReplay_RefusesWhileEarlierReplayInFlight proves
 // the replay-storm guard: a second replay of the same event to the
 // same target is refused while the first is still queued, so repeated
 // submissions cannot stack copies of work the engine has not done.
 func TestHandleDeliveryReplay_RefusesWhileEarlierReplayInFlight(
 	t *testing.T,
 ) {
 	t.Parallel()
 	var (
 		h     *handlers.Handlers
 		sess  *session.Session
 		db    *database.Database
 		dbMgr *database.WebhookDBManager
 		notif *recordingNotifier
 	)
 	app := newTestApp(t, &h, &sess, &db, &dbMgr, &notif)
 	app.RequireStart()
 	t.Cleanup(app.RequireStop)
 	wh := seedWebhook(t, db)
 	tgt := seedConfiguredTarget(
 		t, db, wh.ID, database.TargetTypeHTTP,
 		`{"url":"`+replayTargetURL+`"}`,
 	)
 	event, original := seedFailedDelivery(
 		t, dbMgr, wh.ID, tgt.ID,
 	)
 	first := postReplay(t, h, sess, wh.ID, original.ID)
 	require.Equal(t, http.StatusSeeOther, first.Code)
 	require.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=queued",
 		first.Header().Get("Location"),
 	)
 	second := postReplay(t, h, sess, wh.ID, original.ID)
 	require.Equal(t, http.StatusSeeOther, second.Code)
 	assert.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=in-flight",
 		second.Header().Get("Location"),
 	)
 	webhookDB, err := dbMgr.GetDB(wh.ID)
 	require.NoError(t, err)
 	assert.Len(
 		t, listDeliveries(t, webhookDB, event.ID), 2,
 		"the refused second replay must add nothing",
 	)
 	assert.Len(
 		t, notif.Tasks(), 1,
 		"only the first replay reaches the delivery engine",
 	)
 	// A delivery the engine has not finished is not replayable
 	// either, which is the same rule seen from the other side.
 	queued := theOtherDelivery(
 		t, listDeliveries(t, webhookDB, event.ID), original.ID,
 	)
 	pending := postReplay(t, h, sess, wh.ID, queued.ID)
 	require.Equal(t, http.StatusSeeOther, pending.Code)
 	assert.Equal(
 		t,
 		"/source/"+wh.ID+"/logs?replay=not-terminal",
 		pending.Header().Get("Location"),
 	)
 }
 // TestHandleSourceLogs_RendersReplayControlAndBanner proves the action
 // reaches the page it belongs on: a finished delivery renders a POST
 // form carrying a CSRF token, and the outcome code a refusal redirects
 // with becomes a readable message.
 func TestHandleSourceLogs_RendersReplayControlAndBanner(t *testing.T) {
 	t.Parallel()
 	var (
 		h     *handlers.Handlers
 		sess  *session.Session
 		db    *database.Database
 		dbMgr *database.WebhookDBManager
 	)
 	app := newTestApp(t, &h, &sess, &db, &dbMgr)
 	app.RequireStart()
 	t.Cleanup(app.RequireStop)
 	wh := seedWebhook(t, db)
 	tgt := seedConfiguredTarget(
 		t, db, wh.ID, database.TargetTypeHTTP,
 		`{"url":"`+replayTargetURL+`"}`,
 	)
 	_, original := seedFailedDelivery(t, dbMgr, wh.ID, tgt.ID)
 	body := renderSourceLogsPage(t, h, sess, wh.ID)
 	assert.Contains(
 		t, body,
 		`action="/source/`+wh.ID+`/deliveries/`+
 			original.ID+`/replay"`,
 	)
 	assert.Contains(t, body, `method="POST"`)
 	assert.Contains(t, body, `name="csrf_token"`)
 	assert.Contains(t, body, ">Replay<")
 	refused := renderSourceLogsPageWithQuery(
 		t, h, sess, wh.ID, "?replay=target-deleted",
 	)
 	assert.Contains(t, refused, "alert-error")
 	assert.Contains(t, refused, "has been deleted")
 	// An outcome code nobody issued renders no banner at all.
 	unknown := renderSourceLogsPageWithQuery(
 		t, h, sess, wh.ID, "?replay=made-up",
 	)
 	assert.NotContains(t, unknown, "alert-error")
 	assert.NotContains(t, unknown, "alert-success")
 	assert.NotContains(t, unknown, "made-up")
 }
--- a/internal/handlers/delivery_result_view_test.go
+++ b/internal/handlers/delivery_result_view_test.go
@@ -30,14 +30,10 @@ const (
 	attemptError      = "upstream returned 502 Bad Gateway"
 )
-// seedFailedDeliveryWithResponse records an event, a failed
+// seedFailedDelivery records an event, a failed delivery
-// delivery against targetID, and one delivery result carrying
+// against targetID, and one delivery result carrying the
-// the given response body. It returns the delivery.
+// given response body. It returns the delivery.
-//
+func seedFailedDelivery(
 // Distinct from seedFailedDelivery in delivery_replay_test.go,
 // which seeds an attempt with no response body and returns the
 // event as well; these tests need the recorded response.
 func seedFailedDeliveryWithResponse(
 	t *testing.T,
 	dbMgr *database.WebhookDBManager,
 	webhookID, targetID, responseBody string,
@@ -51,7 +47,7 @@ func seedFailedDeliveryWithResponse(
 		WebhookID:   webhookID,
 		Method:      http.MethodPost,
 		Body:        `{"test":true}`,
-		ContentType: contentTypeJSON,
+		ContentType: "application/json",
 	}
 	require.NoError(t, webhookDB.Omit(
@@ -112,9 +108,7 @@ func seedFailureAndRender(
 		t, db, wh.ID, targetType, config,
 	)
-	seedFailedDeliveryWithResponse(
+	seedFailedDelivery(t, dbMgr, wh.ID, tgt.ID, responseBody)
 		t, dbMgr, wh.ID, tgt.ID, responseBody,
 	)
 	return renderSourceLogsPage(t, h, sess, wh.ID)
 }
@@ -232,7 +226,7 @@ func TestHandleSourceLogs_RedactsCredentialEchoedInError(
 		`{"webhookUrl":"`+slackWebhookURL+`"}`,
 	)
-	dlv := seedFailedDeliveryWithResponse(t, dbMgr, wh.ID, tgt.ID, "")
+	dlv := seedFailedDelivery(t, dbMgr, wh.ID, tgt.ID, "")
 	webhookDB, err := dbMgr.GetDB(wh.ID)
 	require.NoError(t, err)
@@ -377,7 +371,7 @@ func TestHandleSourceLogs_RedactsForSoftDeletedTarget(
 		`{"webhookUrl":"`+slackWebhookURL+`"}`,
 	)
-	seedFailedDeliveryWithResponse(
+	seedFailedDelivery(
 		t, dbMgr, wh.ID, tgt.ID,
 		"no_service: "+slackWebhookURL,
 	)
@@ -417,14 +411,14 @@ func TestHandleSourceLogs_BoundsRenderedAttempts(t *testing.T) {
 		t, db, wh.ID, database.TargetTypeLog, "",
 	)
-	dlv := seedFailedDeliveryWithResponse(t, dbMgr, wh.ID, tgt.ID, "")
+	dlv := seedFailedDelivery(t, dbMgr, wh.ID, tgt.ID, "")
 	webhookDB, err := dbMgr.GetDB(wh.ID)
 	require.NoError(t, err)
 	total := handlers.MaxRenderedAttemptsForTest + extraAttempts
-	// seedFailedDeliveryWithResponse already recorded one attempt.
+	// seedFailedDelivery already recorded one attempt.
 	for i := range total - 1 {
 		require.NoError(t, webhookDB.Omit(
 			clause.Associations,
@@ -487,7 +481,7 @@ func TestHandleSourceLogs_BoundsOversizeResponse(t *testing.T) {
 	)
 	stored := strings.Repeat("A", responseCap*4) + tail
-	seedFailedDeliveryWithResponse(t, dbMgr, wh.ID, tgt.ID, stored)
+	seedFailedDelivery(t, dbMgr, wh.ID, tgt.ID, stored)
 	views := h.LoadEventLogViewsForTest(
 		httptest.NewRecorder(), *wh, 1,
--- a/internal/handlers/handlers_test.go
+++ b/internal/handlers/handlers_test.go
@@ -24,32 +24,9 @@ import (
 	"sneak.berlin/go/webhooker/internal/session"
 )
-// recordingNotifier is a delivery.Notifier that records the tasks it
+type noopNotifier struct{}
 // was handed, so a test can prove a handler queued the delivery it
 // claims to have queued — and, on the refusal paths, that it queued
 // nothing.
 type recordingNotifier struct {
 	mu    sync.Mutex
 	tasks []delivery.Task
 }
-func (n *recordingNotifier) Notify(tasks []delivery.Task) {
+func (n *noopNotifier) Notify([]delivery.Task) {}
 	n.mu.Lock()
 	defer n.mu.Unlock()
 	n.tasks = append(n.tasks, tasks...)
 }
 // Tasks returns a copy of the recorded tasks.
 func (n *recordingNotifier) Tasks() []delivery.Task {
 	n.mu.Lock()
 	defer n.mu.Unlock()
 	out := make([]delivery.Task, len(n.tasks))
 	copy(out, n.tasks)
 	return out
 }
 // recordingEvictor is a delivery.WebhookEvictor that records
 // the webhook ids it was asked to evict, so a test can prove
@@ -97,11 +74,8 @@ func newTestApp(
 			database.NewWebhookDBManager,
 			healthcheck.New,
 			session.New,
-			func() *recordingNotifier {
+			func() delivery.Notifier {
-				return &recordingNotifier{}
+				return &noopNotifier{}
 			},
 			func(n *recordingNotifier) delivery.Notifier {
 				return n
 			},
 			func() *recordingEvictor {
 				return &recordingEvictor{}
--- a/internal/handlers/source_logs_test.go
+++ b/internal/handlers/source_logs_test.go
@@ -15,11 +15,6 @@ import (
 	"sneak.berlin/go/webhooker/internal/session"
 )
 // contentTypeJSON is the content type the seeded events in this
 // package carry. Shared across the seed helpers so the literal
 // appears once.
 const contentTypeJSON = "application/json"
 // seedDeliveredEvent records an event and a delivery for it in
 // the webhook's own database, so the log page has a delivery
 // to render against the target.
@@ -37,7 +32,7 @@ func seedDeliveredEvent(
 		WebhookID:   webhookID,
 		Method:      http.MethodPost,
 		Body:        `{"test":true}`,
-		ContentType: contentTypeJSON,
+		ContentType: "application/json",
 	}
 	require.NoError(t, webhookDB.Omit(
@@ -65,26 +60,10 @@ func renderSourceLogsPage(
 ) string {
 	t.Helper()
 	return renderSourceLogsPageWithQuery(
 		t, h, sess, webhookID, "",
 	)
 }
 // renderSourceLogsPageWithQuery is renderSourceLogsPage over a
 // caller-supplied query string, for the page state a redirect back to
 // the log carries in one.
 func renderSourceLogsPageWithQuery(
 	t *testing.T,
 	h *handlers.Handlers,
 	sess *session.Session,
 	webhookID, query string,
 ) string {
 	t.Helper()
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodGet,
-		"/source/"+webhookID+"/logs"+query,
+		"/source/"+webhookID+"/logs",
 		nil,
 	)
--- a/internal/handlers/source_management.go
+++ b/internal/handlers/source_management.go
@@ -821,18 +821,9 @@ func (h *Handlers) HandleSourceLogs() http.HandlerFunc {
 			totalPages++
 		}
 		// The banner a replay POST redirected back with. The
 		// message comes from a fixed set keyed by the outcome
 		// code, never from the query string itself.
 		replayMsg, replayOK := replayOutcome(
 			r.URL.Query().Get(replayOutcomeParam),
 		)
 		data := map[string]any{
 			tmplKeyWebhook: &webhook,
 			"Events":       evts,
 			"ReplayMessage": replayMsg,
 			"ReplayQueued":  replayOK,
 			"Page":         page,
 			"TotalPages":   totalPages,
 			"TotalEvents":  total,
--- a/internal/metrics/metrics.go
+++ b/internal/metrics/metrics.go
@@ -82,7 +82,6 @@ type Set struct {
 	deliveriesSucceeded *prometheus.CounterVec
 	deliveriesFailed    *prometheus.CounterVec
 	deliveryRetries     *prometheus.CounterVec
 	deliveryReplays     *prometheus.CounterVec
 	deliveryDuration    *prometheus.HistogramVec
 	deliveriesPending   *prometheus.GaugeVec
 	deliveriesRetrying  *prometheus.GaugeVec
@@ -150,22 +149,6 @@ func (s *Set) ObserveDeliveryDuration(
 		Observe(d.Seconds())
 }
 // DeliveryReplayed counts one delivery an operator replayed from the
 // event log.
 //
 // A replay runs the ordinary engine path, so it already moves the
 // attempt, outcome and duration series exactly as a first delivery
 // does — deliberately, since a replay is a real delivery and hiding it
 // from those would misreport the pipeline. This counter is the one
 // place the two are distinguishable, and it carries the existing
 // target-type label rather than adding a replay dimension to every
 // other series.
 func (s *Set) DeliveryReplayed(t database.TargetType) {
 	s.deliveryReplays.
 		WithLabelValues(normalizeTargetType(t)).
 		Inc()
 }
 // DeliveryStatusChanged counts a delivery's transition into a new
 // status. The mapping from status to counter lives here, next to the
 // collectors, so the engine has a single call for every transition it
@@ -288,16 +271,6 @@ func (s *Set) registerCounters(factory promauto.Factory) {
 		},
 		[]string{targetTypeLabel},
 	)
 	s.deliveryReplays = factory.NewCounterVec(
 		prometheus.CounterOpts{
 			Namespace: namespace,
 			Name:      "delivery_replays_total",
 			Help: "Deliveries an operator replayed from the " +
 				"event log, by target type.",
 		},
 		[]string{targetTypeLabel},
 	)
 }
 func (s *Set) registerGauges(factory promauto.Factory) {
@@ -349,7 +322,6 @@ func (s *Set) initSeries() {
 		s.deliveriesSucceeded.WithLabelValues(label)
 		s.deliveriesFailed.WithLabelValues(label)
 		s.deliveryRetries.WithLabelValues(label)
 		s.deliveryReplays.WithLabelValues(label)
 		s.deliveriesPending.WithLabelValues(label)
 		s.deliveriesRetrying.WithLabelValues(label)
 		s.circuitBreakersOpen.WithLabelValues(label)
--- a/internal/middleware/ratelimit.go
+++ b/internal/middleware/ratelimit.go
@@ -34,16 +34,6 @@ const (
 	// password change rate limit.
 	passwordChangeRateInterval = 1 * time.Minute
 	// replayRateLimit is the maximum number of delivery replays one
 	// client may queue per interval. Each replay puts a delivery on
 	// the engine's queue, so without a ceiling one operator holding
 	// the button down — or scripting it — queues unbounded outbound
 	// work. It sits far above any rate a person clicks at.
 	replayRateLimit = 30
 	// replayRateInterval is the time window for the replay limit.
 	replayRateInterval = 1 * time.Minute
 	// receiverRateInterval is the time window for the webhook
 	// receiver rate limit. The configured limit is expressed in
 	// requests per minute.
@@ -300,21 +290,6 @@ func (m *Middleware) PasswordChangeRateLimit() func(http.Handler) http.Handler {
 	)
 }
 // ReplayRateLimit returns middleware that enforces per-IP rate
 // limiting on delivery replays.
 //
 // Like the password-change limit it is spent on arrival, which is safe
 // for the same reason: RequireAuth runs ahead of it, so only a request
 // already carrying a valid session can reach the bucket.
 func (m *Middleware) ReplayRateLimit() func(http.Handler) http.Handler {
 	return m.postRateLimit(
 		replayRateLimit,
 		replayRateInterval,
 		"delivery replay rate limit exceeded",
 		"Too many replays. Please try again later.",
 	)
 }
 // postRateLimit builds middleware that enforces a per-IP rate
 // limit on POST requests only; all other methods pass through
 // unaffected. Requests over the limit receive a 429 with the
--- a/internal/server/routes.go
+++ b/internal/server/routes.go
@@ -201,18 +201,6 @@ func (s *Server) setupSourceRoutes() {
 			"/logs/{eventID}/body",
 			s.h.HandleEventBodyDownload(),
 		)
 		// Replay is the one page action that queues outbound work:
 		// it creates a delivery from a stored event and hands it to
 		// the delivery engine. The rate limit is what bounds a
 		// held-down button or a scripted loop; the handler
 		// separately refuses a replay while an earlier one for the
 		// same event and target is still in flight. POST only, so
 		// the action cannot be taken by a link, a prefetch or an
 		// image tag.
 		r.With(s.mw.ReplayRateLimit()).Post(
 			"/deliveries/{deliveryID}/replay",
 			s.h.HandleDeliveryReplay(),
 		)
 		r.Post(
 			"/entrypoints",
 			s.h.HandleEntrypointCreate(),
--- a/internal/server/routes_test.go
+++ b/internal/server/routes_test.go
@@ -310,75 +310,6 @@ func (e *testEnv) seedEvent(
 	return event
 }
 // seedTarget creates an active HTTP target for a webhook.
 func (e *testEnv) seedTarget(
 	t *testing.T,
 	webhookID string,
 ) *database.Target {
 	t.Helper()
 	tgt := &database.Target{
 		WebhookID: webhookID,
 		Name:      "routed-target",
 		Type:      database.TargetTypeHTTP,
 		Active:    true,
 		Config:    `{"url":"http://93.184.216.34/hook"}`,
 	}
 	require.NoError(
 		t,
 		e.db.DB().Omit(clause.Associations).Create(tgt).Error,
 	)
 	return tgt
 }
 // seedFailedDelivery records a terminally failed delivery of an event
 // to a target in the webhook's own database.
 func (e *testEnv) seedFailedDelivery(
 	t *testing.T,
 	webhookID, eventID, targetID string,
 ) *database.Delivery {
 	t.Helper()
 	webhookDB, err := e.dbMgr.GetDB(webhookID)
 	require.NoError(t, err)
 	dlv := &database.Delivery{
 		EventID:  eventID,
 		TargetID: targetID,
 		Status:   database.DeliveryStatusFailed,
 	}
 	require.NoError(
 		t,
 		webhookDB.Omit(clause.Associations).Create(dlv).Error,
 	)
 	return dlv
 }
 // countDeliveries reports how many deliveries a webhook's database
 // holds.
 func (e *testEnv) countDeliveries(
 	t *testing.T, webhookID string,
 ) int64 {
 	t.Helper()
 	webhookDB, err := e.dbMgr.GetDB(webhookID)
 	require.NoError(t, err)
 	var count int64
 	require.NoError(
 		t,
 		webhookDB.Model(&database.Delivery{}).
 			Count(&count).Error,
 	)
 	return count
 }
 // storedHash reads the current password hash for a username.
 func (e *testEnv) storedHash(t *testing.T, username string) string {
 	t.Helper()
@@ -743,85 +674,6 @@ func TestSourceLogsBody_OtherUser404s(t *testing.T) {
 	assert.Equal(t, "/pages/login", anon.Header().Get("Location"))
 }
 // TestDeliveryReplay_PostOnlyAndCSRFProtected walks the replay action
 // through the production router rather than a forged route context,
 // which is the only way to prove what the route group actually gives
 // it: a GET cannot trigger a replay, an unauthenticated request never
 // reaches the handler, a POST without the token is refused by CSRF,
 // and the form the template emits — token and action URL both — works
 // as rendered.
 func TestDeliveryReplay_PostOnlyAndCSRFProtected(t *testing.T) {
 	t.Parallel()
 	env := newTestEnv(t)
 	userID, _ := env.seedUser(t, "replayer", "somepassword")
 	cookies := env.authCookies(t, userID, "replayer")
 	wh := env.seedWebhook(t, userID)
 	tgt := env.seedTarget(t, wh.ID)
 	evt := env.seedEvent(t, wh.ID, `{"replay":"me"}`)
 	dlv := env.seedFailedDelivery(t, wh.ID, evt.ID, tgt.ID)
 	path := "/source/" + wh.ID + "/deliveries/" + dlv.ID +
 		"/replay"
 	assert.Equal(
 		t, http.StatusMethodNotAllowed,
 		env.get(path, cookies).Code,
 		"a replay must not be reachable by GET",
 	)
 	assert.Equal(
 		t, http.StatusForbidden,
 		env.post(path, url.Values{}, cookies).Code,
 		"a replay POST without a CSRF token must be refused",
 	)
 	anon := env.post(path, url.Values{}, nil)
 	assert.Equal(t, http.StatusForbidden, anon.Code)
 	require.Equal(
 		t, int64(1), env.countDeliveries(t, wh.ID),
 		"no refused request may have created a delivery",
 	)
 	// The token and the action URL both come out of the rendered
 	// page, so a typo in either the route pattern or the template
 	// fails here.
 	logsPath := "/source/" + wh.ID + "/logs"
 	token, cookies := env.csrfFrom(t, logsPath, cookies)
 	page := env.get(logsPath, cookies)
 	require.Equal(t, http.StatusOK, page.Code)
 	action := regexp.MustCompile(
 		`action="(/source/[^"]+/replay)"`,
 	).FindStringSubmatch(page.Body.String())
 	require.Len(
 		t, action, 2,
 		"a finished delivery should render a replay form",
 	)
 	form := url.Values{}
 	form.Set("csrf_token", token)
 	w := env.post(
 		html.UnescapeString(action[1]), form, cookies,
 	)
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t, logsPath+"?replay=queued",
 		w.Header().Get("Location"),
 	)
 	assert.Equal(
 		t, int64(2), env.countDeliveries(t, wh.ID),
 		"the replay appends a delivery",
 	)
 }
 // metricsConfig is a Config differing from the routing default only
 // in the two /metrics credentials.
 func metricsConfig(
--- a/templates/source_logs.html
+++ b/templates/source_logs.html
@@ -12,10 +12,6 @@
        </div>
    </div>
    {{if .ReplayMessage}}
    <div class="{{if .ReplayQueued}}alert-success{{else}}alert-error{{end}}">{{.ReplayMessage}}</div>
    {{end}}
    <div class="card">
        <div class="divide-y divide-gray-100">
            {{range .Events}}
@@ -56,14 +52,7 @@
                                        <span class="text-sm text-gray-700">{{.Target.Name}}</span>
                                        <span class="text-xs {{if eq .Status "delivered"}}text-green-600{{else if eq .Status "failed"}}text-red-600{{else if eq .Status "retrying"}}text-yellow-600{{else}}text-gray-400{{end}}">{{.Status}}</span>
                                    </div>
-                                    <div class="flex items-center gap-3">
+                                    <div class="flex items-center gap-2">
                                        {{if .Status.Terminal}}
                                        <form method="POST" action="/source/{{$.Webhook.ID}}/deliveries/{{.ID}}/replay" class="inline" @click.stop>
                                            <input type="hidden" name="csrf_token" value="{{$.CSRFToken}}">
                                            <input type="hidden" name="page" value="{{$.Page}}">
                                            <button type="submit" class="text-xs text-primary-600 hover:text-primary-700" title="Send this event to the target again">Replay</button>
                                        </form>
                                        {{end}}
                                        <span class="text-xs text-gray-400">{{.AttemptCount}} attempt{{if ne .AttemptCount 1}}s{{end}}</span>
                                        <svg class="w-3 h-3 text-gray-400 transition-transform" :class="{ 'rotate-180': attempts }" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"/>