Render admin page errors in the normal layout (closes #382)

Every 400, 403, 404 and 500 on an admin page now answers with an
error page in the normal layout: one fixed line for the status and a
link back to the webhook list, or to sign-in when nobody is signed
in. The router's handler for unknown paths and the CSRF middleware's
refusal use the same page. Status codes are unchanged. The receiver,
the healthcheck and /metrics keep their plain answers. If the error
page itself cannot render, the answer is the same status in plain
text.

Model: opus-5-5

README.md

@@ -7,7 +7,7 @@ services, durably stores them, and delivers them to configured targets
 with retry support, logging, and observability. Category: infrastructure
 / web service. License: MIT.
 
-Each entrypoint is a version 4 UUID served at `/h/{uuid}`, and
+Each entrypoint is a version 4 UUID served at `/webhook/{uuid}`, and
 that UUID is the entrypoint's only credential. webhooker does not use
 shared secrets, HMAC signatures or token headers on the receiver, and
 will not add them — read
@@ -1178,7 +1178,7 @@ backups at rest and restrict who can read them.
 
 **The entrypoint UUID is the credential, and it is the only one.**
 webhooker mints a version 4 UUID per entrypoint and serves it at
-`/h/{uuid}`. Possession of that URL is the authentication:
+`/webhook/{uuid}`. Possession of that URL is the authentication:
 anyone who holds it can submit events to the entrypoint, and the
 receiver verifies nothing else about the sender.
 
@@ -1512,7 +1512,7 @@ the full request and creates an Event.
 | -------------- | ------- | ----------- |
 | `id`           | UUID    | Primary key |
 | `webhook_id`   | UUID    | Foreign key → Webhook |
-| `path`         | string  | Unique bare UUID, generated at creation. The `/h/` prefix is route only and is not stored: the receiver matches this column against the raw `{uuid}` path segment. It is also the entrypoint's credential; see [The entrypoint URL is the authentication secret](#the-entrypoint-url-is-the-authentication-secret) |
+| `path`         | string  | Unique bare UUID, generated at creation. The `/webhook/` prefix is route only and is not stored: the receiver matches this column against the raw `{uuid}` path segment. It is also the entrypoint's credential; see [The entrypoint URL is the authentication secret](#the-entrypoint-url-is-the-authentication-secret) |
 | `description`  | string  | Optional description |
 | `active`       | boolean | Whether this entrypoint accepts events (default: true) |
 
@@ -1893,7 +1893,7 @@ runtime, though CGO is required at build time due to the transitive
 ```
 External Service
        │
-       │  POST /h/{uuid}
+       │  POST /webhook/{uuid}
        ▼
 ┌─────────────┐     ┌──────────────┐     ┌──────────────┐
 │  chi Router │────►│  Middleware   │────►│   Webhook    │
@@ -2119,7 +2119,7 @@ The middleware records three more on the same registry:
 Two of those labels are written once per request from bytes the client
 chose, so both are bounded to something this service registers:
 
-- `handler` is the chi route pattern — `/h/{uuid}`, never the
+- `handler` is the chi route pattern — `/webhook/{uuid}`, never the
   concrete path. A request matching no route carries `(unmatched)`,
   and no entrypoint UUID ever reaches a label.
 - `method` is the request method when the router can route it, and
@@ -2149,7 +2149,7 @@ unpredictable rates, and blanket limits shared with other routes would
 cause legitimate deliveries to be dropped.
 
 The receiver instead has its own dedicated abuse limit, scoped to the
-`/h/{uuid}` route only and keyed per client IP per request path
+`/webhook/{uuid}` route only and keyed per client IP per request path
 (`httprate.KeyByEndpoint`): one misbehaving sender is throttled without
 affecting other senders of the same entrypoint or the same sender's
 other entrypoints. Keying on the path rather than on the entrypoint
@@ -2186,7 +2186,7 @@ log spends. The access log is bounded by neither limit: every request
 is recorded once at `INFO`, served or rejected alike.
 
 What the access log does bound is the _content_ of those lines. A 3xx
-or 4xx response logs the chi route pattern — `/h/{uuid}`,
+or 4xx response logs the chi route pattern — `/webhook/{uuid}`,
 `/user/{username}//`, or the literal `(unmatched)` when the request hit
 no route at all — in place of the concrete URL. Those are the outcomes
 an unauthenticated client can drive for free: 404 and 429 on any
@@ -2220,12 +2220,12 @@ reduces the headers to a fixed allowlist — `Accept`, `Content-Length`,
 
 The same hook rewrites the request URL. The SDK builds it as
 `scheme://host/path` from the concrete path, which on the receiver
-route is `/h/<uuid>` in full — and that UUID is a write
+route is `/webhook/<uuid>` in full — and that UUID is a write
 capability, not an identifier: anyone holding it can post events this
 service accepts and its targets then deliver. A tracker has its own
 retention, access control and deletion policy, so the rule the access
 log follows above does not carry across that boundary. What is sent is
-the chi route pattern instead: `http://host/h/{uuid}`.
+the chi route pattern instead: `http://host/webhook/{uuid}`.
 
 The scheme and the host are kept, and everything else in the URL is
 discarded rather than edited, so a future SDK version that starts
@@ -2269,8 +2269,8 @@ fallback is never the concrete path. The path becomes the literal
 rewrite cannot parse into a scheme is withheld whole. A transaction
 event additionally carries the SDK's own `METHOD /path` name, built
 from the concrete path as well; it is rewritten on the same terms, to
-`POST /h/{uuid}` where the pattern is known and `POST /(redacted)`
-where it is not.
+`POST /webhook/{uuid}` where the pattern is known and `POST
+/(redacted)` where it is not.
 
 The headers are an allowlist for the same reason the rules above are
 unconditional: the SDK's own filter removes four names and passes
@@ -2405,7 +2405,7 @@ logger printed the fully interpolated SQL — parameters and all — to
 standard output on every statement that returned an error, including a
 plain record-not-found, at a level no operator setting reached. Two of
 this service's lookups miss by design on unauthenticated routes: the
-entrypoint lookup behind `/h/{uuid}` and the user lookup behind
+entrypoint lookup behind `/webhook/{uuid}` and the user lookup behind
 the login form, whose path segment and submitted username the client
 picks outright. Every
 `gorm.Open` in the service now installs the adapter in
@@ -2683,10 +2683,10 @@ abuse limit later; they are tracked as future work.
 
 | Method | Path                        | Description |
 | ------ | --------------------------- | ----------- |
-| `GET`  | `/`                         | Root redirect, 303 (authenticated → `/hooks`, unauthenticated → `/pages/login`) |
+| `GET`  | `/`                         | Root redirect, 303 (authenticated → `/sources`, unauthenticated → `/pages/login`) |
 | `GET`  | `/.well-known/healthcheck`  | Health check (JSON: `status`, `now`, `uptimeSeconds`, `uptimeHuman`, `version`, `appname`, `maintenanceMode`) |
 | `GET`, `HEAD` | `/s/*`              | Static file serving (embedded CSS, JS). `GET` and `HEAD` only — `POST`, `PUT`, `PATCH`, `DELETE`, `OPTIONS`, `TRACE` and `CONNECT` are answered `405 Method Not Allowed` with `Allow: GET, HEAD`. Any other method (such as `PROPFIND`) is refused by chi before it reaches this route, and gets `405` without an `Allow` header. Pinned by `TestStaticServesOnlyGetAndHead` |
-| `POST` | `/h/{uuid}`                 | Webhook receiver endpoint. `POST` only — every other method is answered `405 Method Not Allowed` with `Allow: POST`. Rate limited (see [Rate Limiting](#rate-limiting)) |
+| `POST` | `/webhook/{uuid}`           | Webhook receiver endpoint. `POST` only — every other method is answered `405 Method Not Allowed` with `Allow: POST`. Rate limited (see [Rate Limiting](#rate-limiting)) |
 
 #### Authentication Endpoints
 
@@ -2702,25 +2702,25 @@ abuse limit later; they are tracked as future work.
 | ------ | ------------------------ | ----------- |
 | `GET`  | `/user/{username}`       | User profile page |
 | `POST` | `/user/{username}/password` | Change the user's password (5 per minute per bucket, then `429`; `503` if no verification slot frees up within 5s, or immediately if 16 requests are already queued for one) |
-| `GET`  | `/hooks`                 | List user's webhooks |
-| `GET`  | `/hooks/new`             | Create webhook form |
-| `POST` | `/hooks/new`             | Create webhook submission |
-| `GET`  | `/hook/{id}`             | Webhook detail view |
-| `GET`  | `/hook/{id}/edit`        | Edit webhook form |
-| `POST` | `/hook/{id}/edit`        | Edit webhook submission |
-| `POST` | `/hook/{id}/delete`      | Delete webhook |
-| `GET`  | `/hook/{id}/events`      | Full Event Log |
-| `GET`  | `/hook/{id}/events/{eventID}/body` | Download an event's full stored body. The log page renders each body only up to its cap, so this is the only route that serves a whole one; it is offered wherever a body is shown truncated |
-| `POST` | `/hook/{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` | `/hook/{id}/events/{eventID}/resubmit` | Resubmit a stored event: creates a new event copying it and fans that out to every currently active target (30 per minute per bucket, then `429`) |
-| `POST` | `/hook/{id}/entrypoints` | Add entrypoint to webhook |
-| `POST` | `/hook/{id}/entrypoints/{entrypointID}/delete` | Delete an entrypoint |
-| `POST` | `/hook/{id}/entrypoints/{entrypointID}/toggle` | Enable or disable an entrypoint |
-| `POST` | `/hook/{id}/targets`     | Add target to webhook |
-| `GET`  | `/hook/{id}/targets/{targetID}/edit` | Edit target form. The one page that renders a target's destination URL and header values in full, rather than masked |
-| `POST` | `/hook/{id}/targets/{targetID}/edit` | Edit target submission |
-| `POST` | `/hook/{id}/targets/{targetID}/delete` | Delete a target |
-| `POST` | `/hook/{id}/targets/{targetID}/toggle` | Enable or disable a target |
+| `GET`  | `/sources`               | List user's webhooks |
+| `GET`  | `/sources/new`           | Create webhook form |
+| `POST` | `/sources/new`           | Create webhook submission |
+| `GET`  | `/source/{id}`           | Webhook detail view |
+| `GET`  | `/source/{id}/edit`      | Edit webhook form |
+| `POST` | `/source/{id}/edit`      | Edit webhook submission |
+| `POST` | `/source/{id}/delete`    | Delete webhook |
+| `GET`  | `/source/{id}/logs`      | Webhook event logs |
+| `GET`  | `/source/{id}/logs/{eventID}/body` | Download an event's full stored body. The log page renders each body only up to its cap, so this is the only route that serves a whole one; it is offered wherever a body is shown truncated |
+| `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}/events/{eventID}/resubmit` | Resubmit a stored event: creates a new event copying it and fans that out to every currently active target (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 |
+| `POST` | `/source/{id}/targets`   | Add target to webhook |
+| `GET`  | `/source/{id}/targets/{targetID}/edit` | Edit target form. The one page that renders a target's destination URL and header values in full, rather than masked |
+| `POST` | `/source/{id}/targets/{targetID}/edit` | Edit target submission |
+| `POST` | `/source/{id}/targets/{targetID}/delete` | Delete a target |
+| `POST` | `/source/{id}/targets/{targetID}/toggle` | Enable or disable a target |
 
 #### Infrastructure Endpoints
 
@@ -2921,8 +2921,8 @@ local record instead of nothing. What that placement gives up is
 recovery of a panic in the six entries above it, none of which does
 more than set a header or start a timer.
 
-Additionally, form endpoints (`/pages`, `/user/*`, `/hooks`,
-`/hook/*`) apply a **MaxBodySize** middleware that limits
+Additionally, form endpoints (`/pages`, `/user/*`, `/sources`,
+`/source/*`) apply a **MaxBodySize** middleware that limits
 POST/PUT/PATCH request bodies to 1 MB. It is registered ahead of the
 CSRF middleware in every one of those route groups, because
 gorilla/csrf parses the form; if the cap were installed after it, form
@@ -2946,7 +2946,7 @@ Those same four route groups then apply **CSRF** and **NoCache**
 `/pages` applies **RequireAuth**. The rate limiters are per-route
 rather than global: **PasswordChangeRateLimit** on
 `/user/{username}/password` and **ReceiverRateLimit** on
-`/h/{uuid}`. There is deliberately none on `/pages/login` — that
+`/webhook/{uuid}`. There is deliberately none on `/pages/login` — that
 endpoint counts failures inside the handler, after the credential
 check, see [The login endpoint](#the-login-endpoint).
 
@@ -2987,8 +2987,8 @@ check, see [The login endpoint](#the-login-endpoint).
   by middleware that runs before CSRF parses the form
 - **CSRF protection** via [gorilla/csrf](https://github.com/gorilla/csrf)
   on all state-changing forms (cookie-based double-submit tokens with
-  HMAC authentication). Applied to `/pages`, `/hooks`, `/hook`, and
-  `/user` routes. Excluded from `/h` (inbound webhook POSTs) and
+  HMAC authentication). Applied to `/pages`, `/sources`, `/source`, and
+  `/user` routes. Excluded from `/webhook` (inbound webhook POSTs) and
   `/api` (stateless API). The middleware detects TLS per-request through
   `internal/reqtls.IsTLS` — the same predicate the session cookie uses —
   to set appropriate cookie security flags and Origin/Referer validation

internal/gormlog/gormlog.go

@@ -7,7 +7,7 @@
 // SQL — parameters and all — for every statement that returns an
 // error, including gorm.ErrRecordNotFound. Two of this service's
 // lookups miss by design on unauthenticated routes: the entrypoint
-// lookup on /h/{uuid}, whose path segment the client picks
+// lookup on /webhook/{uuid}, whose path segment the client picks
 // outright, and the user lookup behind the login form, whose username
 // the client picks outright. Under the default logger each of those
 // misses printed an unbounded, attacker-chosen string, at no level the

internal/handlers/auth.go

@@ -36,7 +36,7 @@ func (h *Handlers) HandleLoginSubmit() http.HandlerFunc {
 		err := r.ParseForm()
 		if err != nil {
 			h.log.Error("failed to parse form", "error", err)
-			http.Error(w, "Bad request", http.StatusBadRequest)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -165,11 +165,7 @@ func (h *Handlers) authenticateUser(
 
 	valid, err := database.VerifyPassword(password, user.Password)
 	if err != nil {
-		h.log.Error("failed to verify password", "error", err)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.serverError(w, r, "failed to verify password", err)
 
 		return user, err
 	}
@@ -241,24 +237,14 @@ func (h *Handlers) createAuthenticatedSession(
 ) error {
 	oldSess, err := h.session.Get(r)
 	if err != nil {
-		h.log.Error("failed to get session", "error", err)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.serverError(w, r, "failed to get session", err)
 
 		return err
 	}
 
 	sess, err := h.session.Regenerate(r, w, oldSess)
 	if err != nil {
-		h.log.Error(
-			"failed to regenerate session", "error", err,
-		)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.serverError(w, r, "failed to regenerate session", err)
 
 		return err
 	}
@@ -267,11 +253,7 @@ func (h *Handlers) createAuthenticatedSession(
 
 	err = h.session.Save(r, w, sess)
 	if err != nil {
-		h.log.Error("failed to save session", "error", err)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.serverError(w, r, "failed to save session", err)
 
 		return err
 	}

internal/handlers/delivery_replay.go

@@ -105,9 +105,7 @@ func (h *Handlers) HandleDeliveryReplay() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err := r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -124,14 +122,14 @@ func (h *Handlers) replayDelivery(
 	webhook database.Webhook,
 ) {
 	if !h.dbMgr.DBExists(webhook.ID) {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}
 
 	webhookDB, err := h.dbMgr.GetDB(webhook.ID)
 	if err != nil {
-		h.serverError(w, "failed to get webhook database", err)
+		h.serverError(w, r, "failed to get webhook database", err)
 
 		return
 	}
@@ -173,7 +171,7 @@ func (h *Handlers) loadReplaySource(
 			&original, "id = ?", chi.URLParam(r, "deliveryID"),
 		).Error
 	if err != nil {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return nil, false
 	}
@@ -195,7 +193,7 @@ func (h *Handlers) queueReplay(
 	)
 	if err != nil {
 		h.serverError(
-			w, "failed to count in-flight deliveries", err,
+			w, r, "failed to count in-flight deliveries", err,
 		)
 
 		return
@@ -212,7 +210,7 @@ func (h *Handlers) queueReplay(
 	err = webhookDB.
 		First(&event, "id = ?", original.EventID).Error
 	if err != nil {
-		h.serverError(w, "failed to load event for replay", err)
+		h.serverError(w, r, "failed to load event for replay", err)
 
 		return
 	}
@@ -222,7 +220,7 @@ func (h *Handlers) queueReplay(
 	)
 	if err != nil {
 		h.serverError(
-			w, "failed to create replay delivery", err,
+			w, r, "failed to create replay delivery", err,
 		)
 
 		return
@@ -362,7 +360,7 @@ func (h *Handlers) finishReplay(
 	webhook database.Webhook,
 	code replayOutcomeCode,
 ) {
-	dest := "/hook/" + webhook.ID + "/events?" +
+	dest := "/source/" + webhook.ID + "/logs?" +
 		replayOutcomeParam + "=" + string(code)
 
 	// The page is read from the form rather than the query string:

internal/handlers/delivery_replay_test.go

@@ -138,7 +138,7 @@ func postReplay(
 	t.Helper()
 
 	req := postRequest(
-		"/hook/"+webhookID+"/deliveries/"+
+		"/source/"+webhookID+"/deliveries/"+
 			deliveryID+"/replay",
 		authenticatedCookies(
 			t, sess, deleteTestUserID, deleteTestUsername,
@@ -212,7 +212,7 @@ func TestHandleDeliveryReplay_AppendsDeliveryAndLeavesOriginal(
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=queued",
+		"/source/"+wh.ID+"/logs?replay=queued",
 		w.Header().Get("Location"),
 	)
 
@@ -362,7 +362,7 @@ func TestHandleDeliveryReplay_RefusesDeletedTarget(t *testing.T) {
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=target-deleted",
+		"/source/"+wh.ID+"/logs?replay=target-deleted",
 		w.Header().Get("Location"),
 	)
 
@@ -390,7 +390,7 @@ func TestHandleDeliveryReplay_RefusesDeletedTarget(t *testing.T) {
 	require.Equal(t, http.StatusSeeOther, missing.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=target-missing",
+		"/source/"+wh.ID+"/logs?replay=target-missing",
 		missing.Header().Get("Location"),
 	)
 }
@@ -431,7 +431,7 @@ func TestHandleDeliveryReplay_RefusesWhileEarlierReplayInFlight(
 	require.Equal(t, http.StatusSeeOther, first.Code)
 	require.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=queued",
+		"/source/"+wh.ID+"/logs?replay=queued",
 		first.Header().Get("Location"),
 	)
 
@@ -439,7 +439,7 @@ func TestHandleDeliveryReplay_RefusesWhileEarlierReplayInFlight(
 	require.Equal(t, http.StatusSeeOther, second.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=in-flight",
+		"/source/"+wh.ID+"/logs?replay=in-flight",
 		second.Header().Get("Location"),
 	)
 
@@ -465,7 +465,7 @@ func TestHandleDeliveryReplay_RefusesWhileEarlierReplayInFlight(
 	require.Equal(t, http.StatusSeeOther, pending.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?replay=not-terminal",
+		"/source/"+wh.ID+"/logs?replay=not-terminal",
 		pending.Header().Get("Location"),
 	)
 }
@@ -501,7 +501,7 @@ func TestHandleSourceLogs_RendersReplayControlAndBanner(t *testing.T) {
 
 	assert.Contains(
 		t, body,
-		`action="/hook/`+wh.ID+`/deliveries/`+
+		`action="/source/`+wh.ID+`/deliveries/`+
 			original.ID+`/replay"`,
 	)
 	assert.Contains(t, body, `method="POST"`)

internal/handlers/error_page_test.go

@@ -0,0 +1,53 @@
+package handlers_test
+
+import (
+	"context"
+	"html/template"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sneak.berlin/go/webhooker/internal/handlers"
+)
+
+// TestErrorPage_RenderFailureKeepsStatus proves that an error page
+// which cannot render answers with the status it was reporting, as
+// plain text, and is not attempted again: a page whose own render
+// fails reaches the error page, and the error page failing as well
+// ends there with the 500.
+func TestErrorPage_RenderFailureKeepsStatus(t *testing.T) {
+	t.Parallel()
+
+	var h *handlers.Handlers
+
+	app := newTestApp(t, &h)
+	app.RequireStart()
+
+	t.Cleanup(app.RequireStop)
+
+	// .Status is an int, so asking it for a field fails the render.
+	failing := `{{.Status.Missing}}`
+	h.AddTemplateForTest("error.html", template.Must(
+		template.New("error").Parse(failing),
+	))
+	h.AddTemplateForTest("failing.html", template.Must(
+		template.New("failing").Parse(`{{.Data.Missing}}`),
+	))
+
+	req := httptest.NewRequestWithContext(
+		context.Background(), http.MethodGet, "/", nil,
+	)
+
+	w := httptest.NewRecorder()
+	h.HandleErrorPage(http.StatusNotFound).ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusNotFound, w.Code)
+	assert.Equal(t, "Not Found\n", w.Body.String())
+
+	w = httptest.NewRecorder()
+	h.RenderTemplateForTest(w, req, "failing.html", 0)
+
+	assert.Equal(t, http.StatusInternalServerError, w.Code)
+	assert.Equal(t, "Internal Server Error\n", w.Body.String())
+}

internal/handlers/event_body.go

@@ -52,7 +52,7 @@ func (h *Handlers) HandleEventBodyDownload() http.HandlerFunc {
 		// steered by a client.
 		eventID, err := uuid.Parse(chi.URLParam(r, "eventID"))
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -103,21 +103,21 @@ func (h *Handlers) serveEventBody(
 	eventID string,
 ) {
 	if !h.dbMgr.DBExists(webhook.ID) {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}
 
 	webhookDB, err := h.dbMgr.GetDB(webhook.ID)
 	if err != nil {
-		h.serverError(w, "failed to get webhook database", err)
+		h.serverError(w, r, "failed to get webhook database", err)
 
 		return
 	}
 
 	body, found, err := eventBody(webhookDB, webhook.ID, eventID)
 	if err != nil {
-		h.serverError(w, "failed to read event body", err)
+		h.serverError(w, r, "failed to read event body", err)
 
 		return
 	}
@@ -130,7 +130,7 @@ func (h *Handlers) serveEventBody(
 	// row and the whole body is served, or it does not and the
 	// response is a clean 404.
 	if !found {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}

internal/handlers/event_body_test.go

@@ -64,8 +64,8 @@ func fetchEventBody(
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodGet,
-		"/hook/"+url.PathEscape(sourceID)+
-			"/events/"+url.PathEscape(eventID)+"/body",
+		"/source/"+url.PathEscape(sourceID)+
+			"/logs/"+url.PathEscape(eventID)+"/body",
 		nil,
 	)
 
@@ -490,7 +490,7 @@ func TestHandleSourceLogs_TruncationMarkerLinksToDownload(
 	page := renderSourceLogsPage(t, h, sess, big.ID)
 	assert.Contains(
 		t, page,
-		"/hook/"+big.ID+"/events/"+bigEvt.ID+"/body",
+		"/source/"+big.ID+"/logs/"+bigEvt.ID+"/body",
 	)
 
 	small := seedWebhook(t, db)
@@ -501,6 +501,6 @@ func TestHandleSourceLogs_TruncationMarkerLinksToDownload(
 	page = renderSourceLogsPage(t, h, sess, small.ID)
 	assert.NotContains(
 		t, page,
-		"/hook/"+small.ID+"/events/"+smallEvt.ID+"/body",
+		"/source/"+small.ID+"/logs/"+smallEvt.ID+"/body",
 	)
 }

internal/handlers/event_resubmit.go

@@ -99,7 +99,7 @@ func (h *Handlers) HandleEventResubmit() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err := r.ParseForm()
 		if err != nil {
-			http.Error(w, "Bad request", http.StatusBadRequest)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -120,20 +120,20 @@ func (h *Handlers) resubmitEvent(
 	// alphabet rather than from the request.
 	eventID, err := uuid.Parse(chi.URLParam(r, "eventID"))
 	if err != nil {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}
 
 	if !h.dbMgr.DBExists(webhook.ID) {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}
 
 	webhookDB, err := h.dbMgr.GetDB(webhook.ID)
 	if err != nil {
-		h.serverError(w, "failed to get webhook database", err)
+		h.serverError(w, r, "failed to get webhook database", err)
 
 		return
 	}
@@ -147,7 +147,7 @@ func (h *Handlers) resubmitEvent(
 		webhookDB, webhook.ID, eventID.String(),
 	)
 	if err != nil {
-		h.serverError(w, "failed to load event to resubmit", err)
+		h.serverError(w, r, "failed to load event to resubmit", err)
 
 		return
 	}
@@ -155,7 +155,7 @@ func (h *Handlers) resubmitEvent(
 	// A miss is a 404 whether the event was reaped, belongs to
 	// another webhook, or never existed.
 	if !found {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return
 	}
@@ -207,7 +207,7 @@ func (h *Handlers) queueResubmit(
 	// inactive one is skipped rather than refused.
 	targets, err := h.loadActiveTargets(webhook.ID)
 	if err != nil {
-		h.serverError(w, "failed to query targets", err)
+		h.serverError(w, r, "failed to query targets", err)
 
 		return
 	}
@@ -225,7 +225,7 @@ func (h *Handlers) queueResubmit(
 		targets,
 	)
 	if err != nil {
-		h.serverError(w, "failed to store resubmitted event", err)
+		h.serverError(w, r, "failed to store resubmitted event", err)
 
 		return
 	}
@@ -257,7 +257,7 @@ func (h *Handlers) finishResubmit(
 	webhook database.Webhook,
 	code resubmitOutcomeCode,
 ) {
-	dest := "/hook/" + webhook.ID + "/events?" +
+	dest := "/source/" + webhook.ID + "/logs?" +
 		resubmitOutcomeParam + "=" + string(code)
 
 	// The page is read from the form rather than the query string:

internal/handlers/event_resubmit_test.go

@@ -65,7 +65,7 @@ func postResubmit(
 	t.Helper()
 
 	req := postRequest(
-		"/hook/"+webhookID+"/events/"+eventID+"/resubmit",
+		"/source/"+webhookID+"/events/"+eventID+"/resubmit",
 		authenticatedCookies(
 			t, sess, deleteTestUserID, deleteTestUsername,
 		),
@@ -154,7 +154,7 @@ func TestHandleEventResubmit_DeliversToTargetCreatedAfterTheEvent(
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?resubmit=queued",
+		"/source/"+wh.ID+"/logs?resubmit=queued",
 		w.Header().Get("Location"),
 	)
 
@@ -281,7 +281,7 @@ func TestHandleEventResubmit_IsRepeatable(t *testing.T) {
 		require.Equal(t, http.StatusSeeOther, w.Code)
 		assert.Equal(
 			t,
-			"/hook/"+wh.ID+"/events?resubmit=queued",
+			"/source/"+wh.ID+"/logs?resubmit=queued",
 			w.Header().Get("Location"),
 			"a resubmit must not be refused while an earlier "+
 				"one is in flight",
@@ -435,7 +435,7 @@ func TestHandleEventResubmit_SkipsInactiveTarget(t *testing.T) {
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?resubmit=queued",
+		"/source/"+wh.ID+"/logs?resubmit=queued",
 		w.Header().Get("Location"),
 		"an inactive target is skipped, not an error",
 	)
@@ -481,7 +481,7 @@ func TestHandleEventResubmit_NoActiveTargetsStillStoresEvent(
 	require.Equal(t, http.StatusSeeOther, w.Code)
 	assert.Equal(
 		t,
-		"/hook/"+wh.ID+"/events?resubmit=no-targets",
+		"/source/"+wh.ID+"/logs?resubmit=no-targets",
 		w.Header().Get("Location"),
 	)
 
@@ -597,7 +597,7 @@ func TestHandleSourceLogs_ShowsResubmitProvenance(t *testing.T) {
 	)
 	assert.Contains(
 		t, body,
-		"/hook/"+wh.ID+"/events/"+original.ID+"/resubmit",
+		"/source/"+wh.ID+"/events/"+original.ID+"/resubmit",
 		"the log must offer the resubmit action per event",
 	)
 }

internal/handlers/export_test.go

@@ -1,9 +1,11 @@
 package handlers
 
 import (
+	"context"
 	"html/template"
 	"log/slog"
 	"net/http"
+	"net/http/httptest"
 
 	"sneak.berlin/go/webhooker/internal/database"
 )
@@ -63,12 +65,20 @@ func (s *Handlers) LoadEventLogViewsForTest(
 	page int,
 ) []EventLogView {
 	views, _, _ := s.loadEventsWithDeliveries(
-		w, webhook, nil, page,
+		w, newRequestForTest(), webhook, nil, page,
 	)
 
 	return views
 }
 
+// newRequestForTest is the request the helpers here pass on for
+// callers that have none: it is used only to render the error page.
+func newRequestForTest() *http.Request {
+	return httptest.NewRequestWithContext(
+		context.Background(), http.MethodGet, "/", nil,
+	)
+}
+
 // AddTemplateForTest registers a template under a page name so that
 // the handlers_test package can drive the render path with a
 // template of its own.
@@ -122,5 +132,5 @@ func (s *Handlers) BuildDatabaseTargetConfigForTest(
 	w http.ResponseWriter,
 	expiry string,
 ) (string, error) {
-	return s.buildDatabaseTargetConfig(w, expiry)
+	return s.buildDatabaseTargetConfig(w, newRequestForTest(), expiry)
 }

internal/handlers/gormlogbound_test.go

@@ -306,7 +306,7 @@ func postWebhook(
 	t.Helper()
 
 	req := httptest.NewRequestWithContext(
-		context.Background(), http.MethodPost, "/h/x",
+		context.Background(), http.MethodPost, "/webhook/x",
 		strings.NewReader("{}"),
 	)
 

internal/handlers/handlers.go

@@ -135,6 +135,7 @@ func New(
 		"source_edit.html":   parsePageTemplate("source_edit.html"),
 		"source_logs.html":   parsePageTemplate("source_logs.html"),
 		"target_edit.html":   parsePageTemplate("target_edit.html"),
+		"error.html":         parsePageTemplate("error.html"),
 	}
 
 	lc.Append(fx.Hook{
@@ -146,6 +147,15 @@ func New(
 	return s, nil
 }
 
+// HandleErrorPage returns a handler that answers every request with
+// the error page for status. The router uses it for unknown paths and
+// the CSRF middleware for a refused form.
+func (s *Handlers) HandleErrorPage(status int) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		s.renderError(w, r, status)
+	}
+}
+
 func (s *Handlers) respondJSON(
 	w http.ResponseWriter,
 	_ *http.Request,
@@ -163,15 +173,72 @@ func (s *Handlers) respondJSON(
 	}
 }
 
-// serverError logs an error and sends a 500 response.
+// serverError logs an error and answers with the 500 error page.
 func (s *Handlers) serverError(
-	w http.ResponseWriter, msg string, err error,
+	w http.ResponseWriter, r *http.Request, msg string, err error,
 ) {
 	s.log.Error(msg, "error", err)
-	http.Error(
-		w, "Internal server error",
-		http.StatusInternalServerError,
-	)
+	s.renderError(w, r, http.StatusInternalServerError)
+}
+
+// renderError answers with status and the error page: the normal
+// layout, one fixed line explaining the status, and a link back to the
+// webhook list, or to sign-in when nobody is signed in.
+//
+// It renders the page itself rather than through renderTemplate,
+// whose own failure comes here. If the error page cannot render
+// either, the answer is the same status in plain text: never a second
+// attempt, and never a different status.
+func (s *Handlers) renderError(
+	w http.ResponseWriter,
+	r *http.Request,
+	status int,
+) {
+	data := s.pageData(r, map[string]any{
+		"Status":     status,
+		"StatusText": http.StatusText(status),
+		"Message":    errorPageText(status),
+	})
+
+	var buf bytes.Buffer
+
+	err := s.templates["error.html"].Execute(&buf, data)
+	if err != nil {
+		s.log.Error("failed to render error page", "error", err)
+		http.Error(w, http.StatusText(status), status)
+
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(status)
+
+	_, err = buf.WriteTo(w)
+	if err != nil {
+		s.log.Error("failed to write error page", "error", err)
+	}
+}
+
+// errorPageText is the line the error page shows for status. It is
+// fixed per status, so the page tells the reader no more than the
+// plain-text answers it replaced did.
+func errorPageText(status int) string {
+	switch status {
+	case http.StatusBadRequest:
+		return "The request could not be read."
+	case http.StatusForbidden:
+		return "The request was refused. If it came from a form " +
+			"left open for a long time, reload the page and try " +
+			"again."
+	case http.StatusNotFound:
+		return "There is nothing here. It may have been deleted, " +
+			"or the address may be wrong."
+	case http.StatusServiceUnavailable:
+		return "The server is busy. Please try again in a moment."
+	default: // http.StatusInternalServerError
+		return "Something went wrong on the server. Please try " +
+			"again."
+	}
 }
 
 // UserInfo represents user information for templates
@@ -224,14 +291,17 @@ func (s *Handlers) renderTemplate(
 			"template not found",
 			"template", pageTemplate,
 		)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		s.renderError(w, r, http.StatusInternalServerError)
 
 		return
 	}
 
+	s.executeTemplate(w, r, tmpl, s.pageData(r, data))
+}
+
+// pageData adds the fields the shared layout renders to a page's own
+// data.
+func (s *Handlers) pageData(r *http.Request, data any) any {
 	userInfo := s.getUserInfo(r)
 	csrfToken := middleware.CSRFToken(r)
 
@@ -245,19 +315,16 @@ func (s *Handlers) renderTemplate(
 		m["User"] = userInfo
 		m["CSRFToken"] = csrfToken
 		m["Version"] = version
-		s.executeTemplate(w, tmpl, m)
 
-		return
+		return m
 	}
 
-	wrapper := templateDataWrapper{
+	return templateDataWrapper{
 		User:      userInfo,
 		CSRFToken: csrfToken,
 		Version:   version,
 		Data:      data,
 	}
-
-	s.executeTemplate(w, tmpl, wrapper)
 }
 
 // executeTemplate renders the template into a buffer and writes to
@@ -270,6 +337,7 @@ func (s *Handlers) renderTemplate(
 // this reason.
 func (s *Handlers) executeTemplate(
 	w http.ResponseWriter,
+	r *http.Request,
 	tmpl *template.Template,
 	data any,
 ) {
@@ -280,10 +348,7 @@ func (s *Handlers) executeTemplate(
 		s.log.Error(
 			"failed to execute template", "error", err,
 		)
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		s.renderError(w, r, http.StatusInternalServerError)
 
 		return
 	}

internal/handlers/handlers_test.go

@@ -176,7 +176,7 @@ func TestHandleIndex_Authenticated(t *testing.T) {
 
 	assert.Equal(t, http.StatusSeeOther, w2.Code)
 	assert.Equal(
-		t, "/hooks", w2.Header().Get("Location"),
+		t, "/sources", w2.Header().Get("Location"),
 	)
 }
 
@@ -307,10 +307,14 @@ func TestRenderTemplateMidRenderErrorSendsNoPartialBody(t *testing.T) {
 		t, http.StatusInternalServerError, w.Code,
 		"a failed render must report a 500",
 	)
-	assert.Equal(
-		t, "Internal server error\n", w.Body.String(),
+	assert.NotContains(
+		t, w.Body.String(), partialPageMarker,
 		"the response must carry no part of the aborted page",
 	)
+	assert.Contains(
+		t, w.Body.String(), "500 Internal Server Error",
+		"a failed render must answer with the error page",
+	)
 }
 
 func TestBuildDatabaseTargetConfig_Valid(t *testing.T) {

internal/handlers/index.go

@@ -5,13 +5,13 @@ import (
 )
 
 // HandleIndex returns a handler for the root path that redirects
-// based on authentication state: authenticated users go to /hooks
+// based on authentication state: authenticated users go to /sources
 // (the dashboard), unauthenticated users go to the login page.
 func (s *Handlers) HandleIndex() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		sess, err := s.session.Get(r)
 		if err == nil && s.session.IsAuthenticated(sess) {
-			http.Redirect(w, r, "/hooks", http.StatusSeeOther)
+			http.Redirect(w, r, "/sources", http.StatusSeeOther)
 
 			return
 		}

internal/handlers/logbound_test.go

@@ -4,7 +4,7 @@ package handlers_test
 // this package reach a value an UNAUTHENTICATED client picks outright
 // and of a length it picks outright:
 //
-//   - the unknown-entrypoint DEBUG line on /h/{uuid}, whose
+//   - the unknown-entrypoint DEBUG line on /webhook/{uuid}, whose
 //     path segment matched no stored entrypoint and so is bounded by
 //     nothing;
 //   - the failed-login DEBUG lines, whose username is a form field.
@@ -190,12 +190,12 @@ func assertNoClientText(t *testing.T, buf *bytes.Buffer) {
 // route pattern.
 func receiverRouter(h *handlers.Handlers) *chi.Mux {
 	router := chi.NewRouter()
-	router.Post("/h/{uuid}", h.HandleWebhook())
+	router.Post("/webhook/{uuid}", h.HandleWebhook())
 
 	return router
 }
 
-// postReceiver sends one POST at /h/<segment>.
+// postReceiver sends one POST at /webhook/<segment>.
 //
 // RawPath is cleared after parsing so chi routes on the decoded path
 // and the handler sees the raw bytes rather than their percent-escaped
@@ -210,7 +210,7 @@ func postReceiver(
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodPost,
-		"/h/"+url.PathEscape(segment),
+		"/webhook/"+url.PathEscape(segment),
 		strings.NewReader(""),
 	)
 	req.URL.RawPath = ""
@@ -507,7 +507,7 @@ func TestVerificationCapacity_LogLineDoesNotTrackPathSize(
 					http.StatusServiceUnavailable,
 					postLoginAtPath(
 						t, h,
-						"/hook/"+url.PathEscape(
+						"/source/"+url.PathEscape(
 							oversizedFill(fill),
 						)+"/login",
 					),

internal/handlers/profile.go

@@ -1,7 +1,6 @@
 package handlers
 
 import (
-	"context"
 	"net/http"
 
 	"github.com/go-chi/chi"
@@ -37,14 +36,14 @@ func (h *Handlers) HandlePasswordChange() http.HandlerFunc {
 		err := r.ParseForm()
 		if err != nil {
 			h.log.Error("failed to parse form", "error", err)
-			http.Error(w, "Bad request", http.StatusBadRequest)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
 
 		successMessage, errorMessage, handled := h.applyPasswordChange(
-			r.Context(),
 			w,
+			r,
 			sessionUsername,
 			// PostFormValue, not FormValue: the credential must
 			// come from the body, never from the query string.
@@ -66,12 +65,12 @@ func (h *Handlers) HandlePasswordChange() http.HandlerFunc {
 // applyPasswordChange verifies the current password and, on success,
 // persists a fresh hash for the user, reusing the same helpers that
 // bootstrap the admin user. It returns the success and error messages
-// to display on the profile page. On an internal failure it writes a
-// 500 response itself and returns handled=false, signalling the caller
+// to display on the profile page. On an internal failure it writes the
+// error page itself and returns handled=false, signalling the caller
 // to stop without re-rendering the page.
 func (h *Handlers) applyPasswordChange(
-	ctx context.Context,
 	w http.ResponseWriter,
+	r *http.Request,
 	username, currentPassword, newPassword, confirmPassword string,
 ) (string, string, bool) {
 	// This endpoint verifies one password and hashes another, at
@@ -79,15 +78,10 @@ func (h *Handlers) applyPasswordChange(
 	// endpoint uses. The bound is per hash, not per endpoint: leaving
 	// this path outside it would leave a hole in it. The slot is held
 	// across both hashes.
-	release, ok := h.mw.BeginPasswordVerification(ctx)
+	release, ok := h.mw.BeginPasswordVerification(r.Context())
 	if !ok {
 		h.log.Warn("password verification capacity exhausted")
-		http.Error(
-			w,
-			"The server is busy verifying credentials. "+
-				"Please try again.",
-			http.StatusServiceUnavailable,
-		)
+		h.renderError(w, r, http.StatusServiceUnavailable)
 
 		return "", "", false
 	}
@@ -103,7 +97,7 @@ func (h *Handlers) applyPasswordChange(
 	).First(&user).Error
 	if err != nil {
 		h.serverError(
-			w, "failed to load user for password change", err,
+			w, r, "failed to load user for password change", err,
 		)
 
 		return "", "", false
@@ -113,7 +107,7 @@ func (h *Handlers) applyPasswordChange(
 		currentPassword, user.Password,
 	)
 	if err != nil {
-		h.serverError(w, "failed to verify password", err)
+		h.serverError(w, r, "failed to verify password", err)
 
 		return "", "", false
 	}
@@ -132,7 +126,7 @@ func (h *Handlers) applyPasswordChange(
 
 	hashedPassword, err := database.HashPassword(newPassword)
 	if err != nil {
-		h.serverError(w, "failed to hash new password", err)
+		h.serverError(w, r, "failed to hash new password", err)
 
 		return "", "", false
 	}
@@ -141,7 +135,7 @@ func (h *Handlers) applyPasswordChange(
 		"password", hashedPassword,
 	).Error
 	if err != nil {
-		h.serverError(w, "failed to update password", err)
+		h.serverError(w, r, "failed to update password", err)
 
 		return "", "", false
 	}
@@ -162,7 +156,7 @@ func (h *Handlers) profileOwnerOrDeny(
 ) (string, string, bool) {
 	requestedUsername := chi.URLParam(r, "username")
 	if requestedUsername == "" {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return "", "", false
 	}
@@ -172,7 +166,7 @@ func (h *Handlers) profileOwnerOrDeny(
 	// unexpected retrieval error.
 	sess, err := h.session.Get(r)
 	if err != nil {
-		h.serverError(w, "failed to get session", err)
+		h.serverError(w, r, "failed to get session", err)
 
 		return "", "", false
 	}
@@ -180,10 +174,7 @@ func (h *Handlers) profileOwnerOrDeny(
 	sessionUsername, ok := h.session.GetUsername(sess)
 	if !ok {
 		h.log.Error("authenticated session missing username")
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.renderError(w, r, http.StatusInternalServerError)
 
 		return "", "", false
 	}
@@ -191,17 +182,14 @@ func (h *Handlers) profileOwnerOrDeny(
 	sessionUserID, ok := h.session.GetUserID(sess)
 	if !ok {
 		h.log.Error("authenticated session missing user ID")
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.renderError(w, r, http.StatusInternalServerError)
 
 		return "", "", false
 	}
 
 	// Only allow users to act on their own profile.
 	if requestedUsername != sessionUsername {
-		http.Error(w, "Forbidden", http.StatusForbidden)
+		h.renderError(w, r, http.StatusForbidden)
 
 		return "", "", false
 	}

internal/handlers/profile_test.go

@@ -126,7 +126,9 @@ func TestUserRoute_Unauthenticated_RedirectedByMiddleware(t *testing.T) {
 
 	var sess *session.Session
 
-	app := newTestApp(t, &log, &cfg, &sess)
+	var h *handlers.Handlers
+
+	app := newTestApp(t, &log, &cfg, &sess, &h)
 	app.RequireStart()
 
 	t.Cleanup(app.RequireStop)
@@ -137,7 +139,7 @@ func TestUserRoute_Unauthenticated_RedirectedByMiddleware(t *testing.T) {
 
 	router := chi.NewRouter()
 	router.Route("/user/{username}", func(r chi.Router) {
-		r.Use(mw.CSRF())
+		r.Use(mw.CSRF(h.HandleErrorPage(http.StatusForbidden)))
 		r.Use(mw.RequireAuth())
 		r.Get("/", func(w http.ResponseWriter, _ *http.Request) {
 			handlerReached = true

internal/handlers/source_delete_test.go

@@ -220,7 +220,7 @@ func TestHandleSourceDelete_EvictsArchiveWriter(t *testing.T) {
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/delete",
+		"/source/"+wh.ID+"/delete",
 		cookies,
 		map[string]string{paramSourceID: wh.ID},
 	)
@@ -267,7 +267,7 @@ func TestHandleSourceDelete_KeepsArchiveFile(t *testing.T) {
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/delete",
+		"/source/"+wh.ID+"/delete",
 		cookies,
 		map[string]string{paramSourceID: wh.ID},
 	)
@@ -323,7 +323,7 @@ func TestHandleSourceDelete_FailedDeleteKeepsEverything(
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/delete",
+		"/source/"+wh.ID+"/delete",
 		cookies,
 		map[string]string{paramSourceID: wh.ID},
 	)
@@ -337,7 +337,7 @@ func TestHandleSourceDelete_FailedDeleteKeepsEverything(
 	)
 	assert.Empty(
 		t, w.Header().Get("Location"),
-		"a failed deletion must not redirect to /hooks",
+		"a failed deletion must not redirect to /sources",
 	)
 
 	assert.Equal(
@@ -402,7 +402,7 @@ func TestHandleSourceDelete_RemovesConfigAndEventDatabase(
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/delete",
+		"/source/"+wh.ID+"/delete",
 		cookies,
 		map[string]string{paramSourceID: wh.ID},
 	)
@@ -411,7 +411,7 @@ func TestHandleSourceDelete_RemovesConfigAndEventDatabase(
 	h.HandleSourceDelete().ServeHTTP(w, req)
 
 	require.Equal(t, http.StatusSeeOther, w.Code)
-	assert.Equal(t, "/hooks", w.Header().Get("Location"))
+	assert.Equal(t, "/sources", w.Header().Get("Location"))
 
 	assert.Equal(
 		t, int64(0),
@@ -465,7 +465,7 @@ func TestHandleTargetDelete_EvictsWhenLastDatabaseTargetGone(
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/targets/"+tgt.ID+"/delete",
+		"/source/"+wh.ID+"/targets/"+tgt.ID+"/delete",
 		cookies,
 		map[string]string{
 			paramSourceID: wh.ID,
@@ -515,7 +515,7 @@ func TestHandleTargetDelete_KeepsWriterWhenDatabaseTargetRemains(
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/targets/"+doomed.ID+"/delete",
+		"/source/"+wh.ID+"/targets/"+doomed.ID+"/delete",
 		cookies,
 		map[string]string{
 			paramSourceID: wh.ID,
@@ -563,7 +563,7 @@ func TestHandleTargetDelete_KeepsWriterWhenOtherTypeDeleted(
 	)
 
 	req := postRequest(
-		"/hook/"+wh.ID+"/targets/"+other.ID+"/delete",
+		"/source/"+wh.ID+"/targets/"+other.ID+"/delete",
 		cookies,
 		map[string]string{
 			paramSourceID: wh.ID,

internal/handlers/source_detail_baseurl_test.go

@@ -81,7 +81,7 @@ func (f *baseURLFixture) entrypointURL(
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodGet,
-		"/hook/"+f.webhook,
+		"/source/"+f.webhook,
 		nil,
 	)
 	req.Host = host
@@ -213,7 +213,7 @@ func TestSourceDetailBaseURL_ForwardedProtoSpellings(t *testing.T) {
 
 			assert.Equal(
 				t,
-				tc.scheme+"://"+host+"/h/"+fixture.path,
+				tc.scheme+"://"+host+"/webhook/"+fixture.path,
 				fixture.entrypointURL(
 					t, host, forwardedProto(tc.header),
 				),
@@ -244,7 +244,7 @@ func TestSourceDetailBaseURL_DirectTLSBeatsPlaintextHeader(
 
 	assert.Equal(
 		t,
-		"https://"+host+"/h/"+fixture.path,
+		"https://"+host+"/webhook/"+fixture.path,
 		got,
 		"a connection this process terminated with TLS "+
 			"outranks a header claiming plaintext",
@@ -272,7 +272,7 @@ func TestSourceDetailBaseURL_KeepsHostAuthority(t *testing.T) {
 
 			assert.Equal(
 				t,
-				"https://"+host+"/h/"+fixture.path,
+				"https://"+host+"/webhook/"+fixture.path,
 				fixture.entrypointURL(
 					t, host, forwardedProto("HTTPS"),
 				),

internal/handlers/source_detail_test.go

@@ -65,7 +65,7 @@ func renderSourceDetailPage(
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodGet,
-		"/hook/"+webhookID,
+		"/source/"+webhookID,
 		nil,
 	)
 

internal/handlers/source_logs_deleted_target_test.go

@@ -28,7 +28,7 @@ func deleteTargetThroughHandler(
 	t.Helper()
 
 	req := postRequest(
-		"/hook/"+webhookID+"/targets/"+targetID+"/delete",
+		"/source/"+webhookID+"/targets/"+targetID+"/delete",
 		authenticatedCookies(
 			t, sess, deleteTestUserID, deleteTestUsername,
 		),

internal/handlers/source_logs_test.go

@@ -84,7 +84,7 @@ func renderSourceLogsPageWithQuery(
 	req := httptest.NewRequestWithContext(
 		context.Background(),
 		http.MethodGet,
-		"/hook/"+webhookID+"/events"+query,
+		"/source/"+webhookID+"/logs"+query,
 		nil,
 	)
 

internal/handlers/source_management.go

@@ -149,13 +149,7 @@ func (h *Handlers) HandleSourceList() http.HandlerFunc {
 			"user_id = ?", userID,
 		).Order("created_at DESC").Find(&webhooks).Error
 		if err != nil {
-			h.log.Error(
-				"failed to list webhooks", "error", err,
-			)
-			http.Error(
-				w, "Internal server error",
-				http.StatusInternalServerError,
-			)
+			h.serverError(w, r, "failed to list webhooks", err)
 
 			return
 		}
@@ -249,9 +243,7 @@ func (h *Handlers) HandleSourceCreateSubmit() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err := r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -311,7 +303,7 @@ func (h *Handlers) createWebhookWithEntrypoint(
 
 	err := h.commitWebhook(webhook)
 	if err != nil {
-		h.serverError(w, "failed to create webhook", err)
+		h.serverError(w, r, "failed to create webhook", err)
 
 		return
 	}
@@ -330,7 +322,7 @@ func (h *Handlers) createWebhookWithEntrypoint(
 	)
 
 	http.Redirect(
-		w, r, "/hook/"+webhook.ID, http.StatusSeeOther,
+		w, r, "/source/"+webhook.ID, http.StatusSeeOther,
 	)
 }
 
@@ -388,7 +380,7 @@ func (h *Handlers) HandleSourceDetail() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -475,7 +467,7 @@ func (h *Handlers) HandleSourceEdit() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -510,7 +502,7 @@ func (h *Handlers) HandleSourceEditSubmit() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -519,9 +511,7 @@ func (h *Handlers) HandleSourceEditSubmit() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err = r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -575,13 +565,13 @@ func (h *Handlers) applyWebhookEdit(
 
 	err := h.db.DB().Save(webhook).Error
 	if err != nil {
-		h.serverError(w, "failed to update webhook", err)
+		h.serverError(w, r, "failed to update webhook", err)
 
 		return
 	}
 
 	http.Redirect(
-		w, r, "/hook/"+webhook.ID, http.StatusSeeOther,
+		w, r, "/source/"+webhook.ID, http.StatusSeeOther,
 	)
 }
 
@@ -605,7 +595,7 @@ func (h *Handlers) HandleSourceDelete() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -632,7 +622,7 @@ func (h *Handlers) deleteWebhookResources(
 	// be removed by hand; deleted history cannot be recovered.
 	err := h.commitWebhookDeletion(&webhook)
 	if err != nil {
-		h.serverError(w, "failed to delete webhook", err)
+		h.serverError(w, r, "failed to delete webhook", err)
 
 		return
 	}
@@ -658,13 +648,13 @@ func (h *Handlers) deleteWebhookResources(
 		// redirecting as though everything succeeded: the file
 		// needs removing by hand, and the logged error names it.
 		h.serverError(
-			w, "failed to delete webhook event database", err,
+			w, r, "failed to delete webhook event database", err,
 		)
 
 		return
 	}
 
-	http.Redirect(w, r, "/hooks", http.StatusSeeOther)
+	http.Redirect(w, r, "/sources", http.StatusSeeOther)
 }
 
 // commitWebhookDeletion soft-deletes a webhook's entrypoints,
@@ -802,7 +792,7 @@ func (h *Handlers) ownedWebhook(
 		"id = ? AND user_id = ?", sourceID, userID,
 	).First(&webhook).Error
 	if err != nil {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return database.Webhook{}, false
 	}
@@ -824,7 +814,7 @@ func (h *Handlers) HandleSourceLogs() http.HandlerFunc {
 			// Without the map every delivery renders through a
 			// zero redactor, so failing the page is the only
 			// safe answer.
-			h.serverError(w, "failed to load targets", err)
+			h.serverError(w, r, "failed to load targets", err)
 
 			return
 		}
@@ -832,7 +822,7 @@ func (h *Handlers) HandleSourceLogs() http.HandlerFunc {
 		page := h.parsePage(r)
 
 		evts, total, ok := h.loadEventsWithDeliveries(
-			w, webhook, targets, page,
+			w, r, webhook, targets, page,
 		)
 		if !ok {
 			return
@@ -942,6 +932,7 @@ func (h *Handlers) parsePage(r *http.Request) int {
 // caller must then render nothing further.
 func (h *Handlers) loadEventsWithDeliveries(
 	w http.ResponseWriter,
+	r *http.Request,
 	webhook database.Webhook,
 	targetMap map[string]eventLogTarget,
 	page int,
@@ -955,7 +946,7 @@ func (h *Handlers) loadEventsWithDeliveries(
 	webhookDB, err := h.dbMgr.GetDB(webhook.ID)
 	if err != nil {
 		h.serverError(
-			w, "failed to get webhook database", err,
+			w, r, "failed to get webhook database", err,
 		)
 
 		return nil, 0, false
@@ -992,7 +983,7 @@ func (h *Handlers) loadEventsWithDeliveries(
 	)
 	if err != nil {
 		h.serverError(
-			w, "failed to load delivery attempts", err,
+			w, r, "failed to load delivery attempts", err,
 		)
 
 		return nil, 0, false
@@ -1001,7 +992,7 @@ func (h *Handlers) loadEventsWithDeliveries(
 	resubmits, err := resubmitCounts(webhookDB, eventIDs)
 	if err != nil {
 		h.serverError(
-			w, "failed to count event resubmissions", err,
+			w, r, "failed to count event resubmissions", err,
 		)
 
 		return nil, 0, false
@@ -1224,7 +1215,7 @@ func (h *Handlers) HandleEntrypointCreate() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -1233,9 +1224,7 @@ func (h *Handlers) HandleEntrypointCreate() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err = r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -1251,13 +1240,13 @@ func (h *Handlers) HandleEntrypointCreate() http.HandlerFunc {
 
 		err = h.db.DB().Create(entrypoint).Error
 		if err != nil {
-			h.serverError(w, "failed to create entrypoint", err)
+			h.serverError(w, r, "failed to create entrypoint", err)
 
 			return
 		}
 
 		http.Redirect(
-			w, r, "/hook/"+webhook.ID, http.StatusSeeOther,
+			w, r, "/source/"+webhook.ID, http.StatusSeeOther,
 		)
 	}
 }
@@ -1282,7 +1271,7 @@ func (h *Handlers) HandleTargetCreate() http.HandlerFunc {
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -1291,9 +1280,7 @@ func (h *Handlers) HandleTargetCreate() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err = r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -1313,7 +1300,7 @@ func (h *Handlers) processTargetCreate(
 	//
 	// Every field here is read with PostFormValue, not FormValue.
 	// FormValue falls back to the query string, which would let
-	// `POST /hook/{id}/targets?url=https://hooks.slack.com/...`
+	// `POST /source/{id}/targets?url=https://hooks.slack.com/...`
 	// configure a target from a value the request line carries — and
 	// the request line, unlike the body, is what logs, proxies,
 	// Referer headers and error trackers record.
@@ -1364,13 +1351,13 @@ func (h *Handlers) processTargetCreate(
 
 	err = h.db.DB().Create(target).Error
 	if err != nil {
-		h.serverError(w, "failed to create target", err)
+		h.serverError(w, r, "failed to create target", err)
 
 		return
 	}
 
 	http.Redirect(
-		w, r, "/hook/"+webhook.ID, http.StatusSeeOther,
+		w, r, "/source/"+webhook.ID, http.StatusSeeOther,
 	)
 }
 
@@ -1428,7 +1415,7 @@ type targetFormInput struct {
 //
 // Every field is read with PostFormValue, not FormValue. FormValue
 // falls back to the query string, which would let
-// `POST /hook/{id}/targets?url=https://hooks.slack.com/...`
+// `POST /source/{id}/targets?url=https://hooks.slack.com/...`
 // configure a target from a value the request line carries — and the
 // request line, unlike the body, is what logs, proxies, Referer
 // headers and error trackers record. The headers field is under the
@@ -1458,7 +1445,7 @@ func (h *Handlers) buildTargetConfig(
 	case database.TargetTypeSlack:
 		return h.buildSlackTargetConfig(w, r, in.URL)
 	case database.TargetTypeDatabase:
-		return h.buildDatabaseTargetConfig(w, in.Expiry)
+		return h.buildDatabaseTargetConfig(w, r, in.Expiry)
 	case database.TargetTypeLog:
 		return "", nil
 	default:
@@ -1508,7 +1495,7 @@ func (h *Handlers) buildHTTPTargetConfig(
 		return "", err
 	}
 
-	return marshalTargetConfig(w, delivery.HTTPTargetConfig{
+	return h.marshalTargetConfig(w, r, delivery.HTTPTargetConfig{
 		URL:     in.URL,
 		Headers: headers,
 		Timeout: timeout,
@@ -1530,7 +1517,7 @@ func (h *Handlers) buildSlackTargetConfig(
 		return "", err
 	}
 
-	return marshalTargetConfig(w, delivery.SlackTargetConfig{
+	return h.marshalTargetConfig(w, r, delivery.SlackTargetConfig{
 		WebhookURL: targetURL,
 	})
 }
@@ -1584,16 +1571,14 @@ func (h *Handlers) validateTargetURL(
 
 // marshalTargetConfig serialises a target configuration for storage,
 // writing a 500 itself if it cannot.
-func marshalTargetConfig(
+func (h *Handlers) marshalTargetConfig(
 	w http.ResponseWriter,
+	r *http.Request,
 	cfg any,
 ) (string, error) {
 	configBytes, err := json.Marshal(cfg)
 	if err != nil {
-		http.Error(
-			w, "Internal server error",
-			http.StatusInternalServerError,
-		)
+		h.serverError(w, r, "failed to encode target config", err)
 
 		return "", err
 	}
@@ -1609,6 +1594,7 @@ func marshalTargetConfig(
 // expiry yields an empty config (the keep-forever default).
 func (h *Handlers) buildDatabaseTargetConfig(
 	w http.ResponseWriter,
+	r *http.Request,
 	expiry string,
 ) (string, error) {
 	expiry = strings.TrimSpace(expiry)
@@ -1627,8 +1613,8 @@ func (h *Handlers) buildDatabaseTargetConfig(
 		return "", err
 	}
 
-	return marshalTargetConfig(
-		w, map[string]any{"expiry": expiry},
+	return h.marshalTargetConfig(
+		w, r, map[string]any{"expiry": expiry},
 	)
 }
 
@@ -1682,7 +1668,7 @@ func (h *Handlers) deleteChildResource(
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
@@ -1692,11 +1678,7 @@ func (h *Handlers) deleteChildResource(
 			childID, webhook.ID,
 		).Delete(model)
 		if result.Error != nil {
-			h.log.Error(errMsg, "error", result.Error)
-			http.Error(
-				w, "Internal server error",
-				http.StatusInternalServerError,
-			)
+			h.serverError(w, r, errMsg, result.Error)
 
 			return
 		}
@@ -1707,7 +1689,7 @@ func (h *Handlers) deleteChildResource(
 
 		http.Redirect(
 			w, r,
-			"/hook/"+webhook.ID,
+			"/source/"+webhook.ID,
 			http.StatusSeeOther,
 		)
 	}
@@ -1786,25 +1768,21 @@ func (h *Handlers) toggleChildResource(
 			"id = ? AND user_id = ?", sourceID, userID,
 		).First(&webhook).Error
 		if err != nil {
-			http.NotFound(w, r)
+			h.renderError(w, r, http.StatusNotFound)
 
 			return
 		}
 
 		err = toggleFn(webhook.ID, childID)
 		if err != nil {
-			h.log.Error(errMsg, "error", err)
-			http.Error(
-				w, "Internal server error",
-				http.StatusInternalServerError,
-			)
+			h.serverError(w, r, errMsg, err)
 
 			return
 		}
 
 		http.Redirect(
 			w, r,
-			"/hook/"+webhook.ID,
+			"/source/"+webhook.ID,
 			http.StatusSeeOther,
 		)
 	}

internal/handlers/source_management_test.go

@@ -105,7 +105,7 @@ func submitCreate(
 		form.Set("retention_days", *retention)
 	}
 
-	req := formRequest("/hooks/new", cookies, form, nil)
+	req := formRequest("/sources/new", cookies, form, nil)
 	w := httptest.NewRecorder()
 
 	h.HandleSourceCreateSubmit().ServeHTTP(w, req)
@@ -265,7 +265,7 @@ func TestHandleSourceCreate_PrefillsDefaultFromConstant(t *testing.T) {
 
 	w := httptest.NewRecorder()
 	env.handlers.HandleSourceCreate().ServeHTTP(
-		w, getRequest(t, "/hooks/new", env.cookies, nil),
+		w, getRequest(t, "/sources/new", env.cookies, nil),
 	)
 
 	require.Equal(t, http.StatusOK, w.Code)
@@ -402,7 +402,7 @@ func TestHandleSourceCreateSubmit_RejectedFormKeepsUserInput(
 	form.Set("description", description)
 	form.Set("retention_days", "nonsense")
 
-	req := formRequest("/hooks/new", env.cookies, form, nil)
+	req := formRequest("/sources/new", env.cookies, form, nil)
 	w := httptest.NewRecorder()
 
 	env.handlers.HandleSourceCreateSubmit().ServeHTTP(w, req)
@@ -430,7 +430,7 @@ func submitEdit(
 	form.Set("retention_days", retention)
 
 	req := formRequest(
-		"/hook/"+wh.ID+"/edit",
+		"/source/"+wh.ID+"/edit",
 		env.cookies,
 		form,
 		map[string]string{sourceIDParam: wh.ID},
@@ -512,7 +512,7 @@ func TestSourceEditForm_ForeverWebhookRoundTrips(t *testing.T) {
 	)
 
 	req := getRequest(
-		t, "/hook/"+wh.ID+"/edit", env.cookies,
+		t, "/source/"+wh.ID+"/edit", env.cookies,
 		map[string]string{sourceIDParam: wh.ID},
 	)
 	w := httptest.NewRecorder()
@@ -567,7 +567,7 @@ func TestSourceListAndDetail_ShowForeverNotTheSentinelNumber(
 
 	listW := httptest.NewRecorder()
 	env.handlers.HandleSourceList().ServeHTTP(
-		listW, getRequest(t, "/hooks", env.cookies, nil),
+		listW, getRequest(t, "/sources", env.cookies, nil),
 	)
 
 	require.Equal(t, http.StatusOK, listW.Code)
@@ -578,7 +578,7 @@ func TestSourceListAndDetail_ShowForeverNotTheSentinelNumber(
 	env.handlers.HandleSourceDetail().ServeHTTP(
 		detailW,
 		getRequest(
-			t, "/hook/"+wh.ID, env.cookies,
+			t, "/source/"+wh.ID, env.cookies,
 			map[string]string{sourceIDParam: wh.ID},
 		),
 	)

internal/handlers/target_create_query_test.go

@@ -76,11 +76,11 @@ func postTargetCreate(
 	router := chi.NewRouter()
 	router.Use(mw.Logging())
 	router.Post(
-		"/hook/{sourceID}/targets",
+		"/source/{sourceID}/targets",
 		env.handlers.HandleTargetCreate(),
 	)
 
-	target := "/hook/" + webhookID + "/targets"
+	target := "/source/" + webhookID + "/targets"
 	if query != "" {
 		target += "?" + query
 	}
@@ -114,7 +114,7 @@ func postTargetCreate(
 // regression test for the ingress leak. r.FormValue falls back to the
 // query string when a field is absent from the POST body, so
 //
-//	POST /hook/{id}/targets?url=https://hooks.slack.com/services/...
+//	POST /source/{id}/targets?url=https://hooks.slack.com/services/...
 //
 // with an empty url field used to create a working target from a value
 // carried on the request line — where logs, proxies, Referer headers

internal/handlers/target_edit.go

@@ -47,7 +47,7 @@ type targetEditView struct {
 //
 // This page is the one place the full destination URL and header
 // values are shown. It is reachable only through the
-// /hook/{sourceID} route group, which supplies RequireAuth and
+// /source/{sourceID} route group, which supplies RequireAuth and
 // NoCache, and only for a target of a webhook the session's user
 // owns; masking (delivery.TargetView) is unchanged everywhere else.
 func (h *Handlers) HandleTargetEdit() http.HandlerFunc {
@@ -88,9 +88,7 @@ func (h *Handlers) HandleTargetEditSubmit() http.HandlerFunc {
 		// middleware, which runs before CSRF parses the form.
 		err := r.ParseForm()
 		if err != nil {
-			http.Error(
-				w, "Bad request", http.StatusBadRequest,
-			)
+			h.renderError(w, r, http.StatusBadRequest)
 
 			return
 		}
@@ -157,13 +155,13 @@ func (h *Handlers) applyTargetEdit(
 
 	err = h.db.DB().Save(target).Error
 	if err != nil {
-		h.serverError(w, "failed to update target", err)
+		h.serverError(w, r, "failed to update target", err)
 
 		return
 	}
 
 	http.Redirect(
-		w, r, "/hook/"+webhook.ID, http.StatusSeeOther,
+		w, r, "/source/"+webhook.ID, http.StatusSeeOther,
 	)
 }
 
@@ -220,7 +218,7 @@ func (h *Handlers) ownedTarget(
 		chi.URLParam(r, "targetID"), webhook.ID,
 	).First(&target).Error
 	if err != nil {
-		http.NotFound(w, r)
+		h.renderError(w, r, http.StatusNotFound)
 
 		return database.Webhook{}, nil, false
 	}

internal/handlers/target_edit_test.go

@@ -42,15 +42,15 @@ const (
 func targetRouter(env *sourceTestEnv) *chi.Mux {
 	router := chi.NewRouter()
 	router.Post(
-		"/hook/{sourceID}/targets",
+		"/source/{sourceID}/targets",
 		env.handlers.HandleTargetCreate(),
 	)
 	router.Get(
-		"/hook/{sourceID}/targets/{targetID}/edit",
+		"/source/{sourceID}/targets/{targetID}/edit",
 		env.handlers.HandleTargetEdit(),
 	)
 	router.Post(
-		"/hook/{sourceID}/targets/{targetID}/edit",
+		"/source/{sourceID}/targets/{targetID}/edit",
 		env.handlers.HandleTargetEditSubmit(),
 	)
 
@@ -117,7 +117,7 @@ func seedHTTPTarget(
 
 	w := serveTarget(
 		env, http.MethodPost,
-		"/hook/"+webhook.ID+"/targets", form,
+		"/source/"+webhook.ID+"/targets", form,
 	)
 	require.Equal(t, http.StatusSeeOther, w.Code, w.Body.String())
 
@@ -188,7 +188,7 @@ func submitTargetEdit(
 ) *httptest.ResponseRecorder {
 	return serveTarget(
 		env, http.MethodPost,
-		"/hook/"+webhookID+"/targets/"+targetID+"/edit",
+		"/source/"+webhookID+"/targets/"+targetID+"/edit",
 		form,
 	)
 }
@@ -401,7 +401,7 @@ func TestHandleTargetEdit_PrefillsTheStoredValuesUnmasked(
 
 	w := serveTarget(
 		env, http.MethodGet,
-		"/hook/"+webhook.ID+"/targets/"+target.ID+"/edit",
+		"/source/"+webhook.ID+"/targets/"+target.ID+"/edit",
 		nil,
 	)
 	require.Equal(t, http.StatusOK, w.Code)
@@ -508,7 +508,7 @@ func assertEditIgnoresQueryString(
 
 	w := serveTarget(
 		env, http.MethodPost,
-		"/hook/"+webhook.ID+"/targets/"+target.ID+
+		"/source/"+webhook.ID+"/targets/"+target.ID+
 			"/edit?url="+url.QueryEscape(editReplacedURL)+
 			"&headers="+url.QueryEscape(editAuthHeader),
 		form,
@@ -592,7 +592,7 @@ func assertTargetOfAnotherWebhook404s(
 
 	get := serveTarget(
 		env, http.MethodGet,
-		"/hook/"+mine.ID+"/targets/"+target.ID+"/edit", nil,
+		"/source/"+mine.ID+"/targets/"+target.ID+"/edit", nil,
 	)
 	assert.Equal(t, http.StatusNotFound, get.Code)
 
@@ -630,7 +630,7 @@ func assertWebhookOfAnotherUser404s(
 
 	w := serveTarget(
 		env, http.MethodGet,
-		"/hook/"+other.ID+"/targets/"+target.ID+"/edit", nil,
+		"/source/"+other.ID+"/targets/"+target.ID+"/edit", nil,
 	)
 
 	assert.Equal(t, http.StatusNotFound, w.Code)

internal/handlers/target_retries_test.go

@@ -102,7 +102,7 @@ func createWithRetries(
 
 	w := serveTarget(
 		env, http.MethodPost,
-		"/hook/"+webhook.ID+"/targets",
+		"/source/"+webhook.ID+"/targets",
 		createRetriesForm(retries),
 	)
 

internal/handlers/ui_copy_test.go

@@ -54,7 +54,8 @@ func renderPage(
 }
 
 // TestNavbarUsesWebhookTerminology pins the user-visible navigation
-// label to "Webhooks" and its link to the webhook list at /hooks.
+// label to "Webhooks". The /sources route is deliberately unchanged, so
+// the assertion targets the link text rather than the href.
 func TestNavbarUsesWebhookTerminology(t *testing.T) {
 	t.Parallel()
 
@@ -94,11 +95,15 @@ func TestNavbarUsesWebhookTerminology(t *testing.T) {
 		t, body, ">Sources<",
 		"no user-visible element may still be labelled Sources",
 	)
-	assert.Contains(t, body, `href="/hooks"`)
+	assert.Contains(
+		t, body, `href="/sources"`,
+		"the /sources route itself must not change",
+	)
 }
 
 // TestEditPageUsesWebhookTerminology pins the edit page's heading and
-// its back link to the webhook page at /hook/{id}.
+// its back link. The link's href still points at /source/{id}, which is
+// intentional: only user-visible copy changes.
 func TestEditPageUsesWebhookTerminology(t *testing.T) {
 	t.Parallel()
 
@@ -125,57 +130,7 @@ func TestEditPageUsesWebhookTerminology(t *testing.T) {
 
 	assert.Contains(t, body, "Edit Webhook")
 	assert.NotContains(t, body, ">Sources<")
-	assert.Contains(t, body, `href="/hook/wh-1"`)
-}
-
-// TestEventLogPageIsCalledFullEventLog pins the one name the event log
-// page at /hook/{id}/events goes by: both links to it on the webhook
-// page, and its own heading, read "Full Event Log".
-func TestEventLogPageIsCalledFullEventLog(t *testing.T) {
-	t.Parallel()
-
-	var h *handlers.Handlers
-
-	var sess *session.Session
-
-	app := newTestApp(t, &h, &sess)
-	app.RequireStart()
-
-	t.Cleanup(app.RequireStop)
-
-	// A pointer, as in the handlers: source_detail.html calls
-	// Webhook.RetentionLabel, a pointer method. Both pages only range
-	// over their lists, and a list left out renders as empty, so the
-	// lists are left out.
-	webhook := &database.Webhook{Name: "wh", RetentionDays: 14}
-	webhook.ID = testWebhookID
-
-	detailBody := renderPage(
-		t, h, sess, "source_detail.html", map[string]any{
-			dataKeyWebhook: webhook,
-		},
-	)
-
-	assert.Contains(
-		t, detailBody,
-		`<a href="/hook/wh-1/events" class="btn-secondary">Full Event Log</a>`,
-		"the button at the top of the webhook page",
-	)
-	assert.Contains(
-		t, detailBody,
-		`<a href="/hook/wh-1/events" class="btn-text text-sm">Full Event Log</a>`,
-		"the link under recent events",
-	)
-
-	logBody := renderPage(t, h, sess, "source_logs.html", map[string]any{
-		dataKeyWebhook: webhook,
-		"TotalEvents":  int64(0),
-	})
-
-	assert.Contains(
-		t, logBody,
-		`<h1 class="text-2xl font-medium text-gray-900">Full Event Log</h1>`,
-	)
+	assert.Contains(t, body, `href="/source/wh-1"`)
 }
 
 // TestCreateFormRetentionCopyMatchesBehaviour pins the create form's
@@ -328,7 +283,7 @@ func TestEntrypointCopyButtonIsProgressiveEnhancement(t *testing.T) {
 		t, body,
 		`<code id="entrypoint-url-ep-1"`,
 	)
-	assert.Contains(t, body, "https://hooks.example.com/h/abc123")
+	assert.Contains(t, body, "https://hooks.example.com/webhook/abc123")
 	assert.Contains(
 		t, body,
 		`hidden data-copy-target="entrypoint-url-ep-1"`,

internal/handlers/webhook.go

@@ -88,14 +88,14 @@ func (h *Handlers) processWebhookRequest(
 
 	headersJSON, err := json.Marshal(r.Header)
 	if err != nil {
-		h.serverError(w, "failed to serialize headers", err)
+		h.receiverError(w, "failed to serialize headers", err)
 
 		return
 	}
 
 	targets, err := h.loadActiveTargets(entrypoint.WebhookID)
 	if err != nil {
-		h.serverError(w, "failed to query targets", err)
+		h.receiverError(w, "failed to query targets", err)
 
 		return
 	}
@@ -131,7 +131,7 @@ func (h *Handlers) lookupEntrypoint(
 		"path = ?", entrypointUUID,
 	).First(&entrypoint)
 	if result.Error != nil {
-		// The receiver is unauthenticated and /h/{uuid}
+		// The receiver is unauthenticated and /webhook/{uuid}
 		// matches any single segment, so this value is entirely
 		// client-chosen on exactly the branch where the lookup
 		// failed. DEBUG is off by default; the cap is what keeps
@@ -196,7 +196,7 @@ func (h *Handlers) createAndDeliverEvent(
 		targets,
 	)
 	if err != nil {
-		h.serverError(w, "failed to store webhook event", err)
+		h.receiverError(w, "failed to store webhook event", err)
 
 		return
 	}
@@ -204,6 +204,19 @@ func (h *Handlers) createAndDeliverEvent(
 	h.finishWebhookResponse(w, event, entrypoint, tasks)
 }
 
+// receiverError logs an error and answers the sender with a plain-text
+// 500. The receiver's answers are for programs, so it never sends the
+// error page the web UI uses.
+func (h *Handlers) receiverError(
+	w http.ResponseWriter, msg string, err error,
+) {
+	h.log.Error(msg, "error", err)
+	http.Error(
+		w, "Internal server error",
+		http.StatusInternalServerError,
+	)
+}
+
 // eventSource carries the fields a new event is built from. The
 // receiver fills it from the live request; the resubmit handler fills
 // it from a stored event. Both then go through createAndFanOut, so an

internal/logfield/logfield_test.go

@@ -201,7 +201,7 @@ func TestTruncate_LeavesShortValuesAlone(t *testing.T) {
 	t.Parallel()
 
 	for _, s := range []string{
-		"", "GET", "/hook/abc/edit", "Mozilla/5.0 (X11)",
+		"", "GET", "/source/abc/edit", "Mozilla/5.0 (X11)",
 	} {
 		assert.Equal(t, s, logfield.Truncate(s, budget))
 	}

internal/middleware/accesslog_test.go

@@ -119,7 +119,7 @@ func accessLogRouter(m *middleware.Middleware) *chi.Mux {
 	)
 
 	router.HandleFunc(
-		"/h/{uuid}",
+		"/webhook/{uuid}",
 		func(w http.ResponseWriter, r *http.Request) {
 			// Stands in for the real handler: an unknown entrypoint
 			// UUID 404s, a known one succeeds.
@@ -271,11 +271,11 @@ func TestAccessLog_InventedReceiverPathsLogRoutePattern(t *testing.T) {
 	assertFloodIsBounded(
 		t,
 		func(i int) string {
-			return "/h/" + attackerMarker +
+			return "/webhook/" + attackerMarker +
 				strings.Repeat("x", i) + "?q=" + attackerMarker
 		},
 		http.StatusNotFound,
-		"/h/{uuid}",
+		"/webhook/{uuid}",
 	)
 }
 
@@ -346,10 +346,10 @@ type sizeCase struct {
 func lineSizeCases() map[string]sizeCase {
 	cases := map[string]sizeCase{
 		"oversized path segment": {
-			target: "/h/" + attackerMarker +
+			target: "/webhook/" + attackerMarker +
 				strings.Repeat("x", oversizedSegmentBytes),
 			wantStatus: http.StatusNotFound,
-			wantURL:    "/h/{uuid}",
+			wantURL:    "/webhook/{uuid}",
 			bound:      maxLineBytes,
 		},
 		// /.well-known/healthcheck answers 200 to anyone and has no
@@ -605,14 +605,14 @@ func TestAccessLog_SuccessKeepsConcretePathAndRedactsQuery(
 	router := accessLogRouter(m)
 
 	assert.Equal(
-		t, http.StatusOK, get(t, router, "/h/known?src=ci"),
+		t, http.StatusOK, get(t, router, "/webhook/known?src=ci"),
 	)
 
 	// The path resolved against a stored entrypoint, so it stays. The
 	// query never does: see TestAccessLog_UnauthenticatedSuccess...
 	entries := accessLogEntries(t, buf)
 	require.Len(t, entries, 1)
-	assert.Equal(t, "/h/known?(redacted)", entries[0]["url"])
+	assert.Equal(t, "/webhook/known?(redacted)", entries[0]["url"])
 	assert.NotContains(t, buf.String(), "src=ci")
 }
 
@@ -640,7 +640,7 @@ func TestAccessLog_RetainsEveryOtherField(t *testing.T) {
 	assert.Equal(
 		t,
 		http.StatusNotFound,
-		get(t, router, "/h/"+attackerMarker),
+		get(t, router, "/webhook/"+attackerMarker),
 	)
 
 	entries := accessLogEntries(t, buf)

internal/middleware/csrf.go

@@ -19,7 +19,7 @@ func CSRFToken(r *http.Request) string {
 // key to sign a CSRF cookie and validates a masked token submitted via
 // the "csrf_token" form field (or the "X-CSRF-Token" header) on
 // POST/PUT/PATCH/DELETE requests. Requests with an invalid or missing
-// token receive a 403 Forbidden response.
+// token are logged and answered by forbidden, which must write the 403.
 //
 // The middleware detects the client-facing transport protocol
 // per-request via reqtls.IsTLS, the single TLS predicate the session
@@ -36,12 +36,14 @@ func CSRFToken(r *http.Request) string {
 // Two gorilla/csrf instances are maintained — one with Secure cookies
 // (for TLS) and one without (for plaintext HTTP) — because the
 // csrf.Secure option is set at creation time, not per-request.
-func (m *Middleware) CSRF() func(http.Handler) http.Handler {
+func (m *Middleware) CSRF(
+	forbidden http.Handler,
+) func(http.Handler) http.Handler {
 	csrfErrorHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		// CSRF is registered ahead of RequireAuth on every route
 		// group that uses it, so this WARN is reachable by an
 		// unauthenticated client: a POST with no token to
-		// /hook/<any length of any text>/edit lands here. The
+		// /source/<any length of any text>/edit lands here. The
 		// method and path are capped against the same budgets as
 		// the access log. remote_addr is set by net/http from the
 		// accepted connection rather than by the client, and
@@ -57,7 +59,7 @@ func (m *Middleware) CSRF() func(http.Handler) http.Handler {
 			"remote_addr", r.RemoteAddr,
 			"reason", csrf.FailureReason(r),
 		)
-		http.Error(w, "Forbidden - invalid CSRF token", http.StatusForbidden)
+		forbidden.ServeHTTP(w, r)
 	})
 
 	key := m.session.GetKey()

internal/middleware/csrf_test.go

@@ -18,6 +18,12 @@ import (
 // csrfCookieName is the gorilla/csrf cookie name.
 const csrfCookieName = "_gorilla_csrf"
 
+// forbidden stands in for the error page the server hands CSRF to
+// answer a refused request with.
+func forbidden(w http.ResponseWriter, _ *http.Request) {
+	w.WriteHeader(http.StatusForbidden)
+}
+
 // csrfGetToken performs a GET request through the CSRF middleware
 // and returns the token and cookies.
 func csrfGetToken(
@@ -98,7 +104,7 @@ func TestCSRF_GETSetsToken(t *testing.T) {
 
 	var gotToken string
 
-	handler := m.CSRF()(http.HandlerFunc(
+	handler := m.CSRF(http.HandlerFunc(forbidden))(http.HandlerFunc(
 		func(_ http.ResponseWriter, r *http.Request) {
 			gotToken = middleware.CSRFToken(r)
 		},
@@ -120,7 +126,7 @@ func TestCSRF_POSTWithValidToken(t *testing.T) {
 	t.Parallel()
 
 	m, _ := testMiddleware(t, config.EnvironmentDev)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	getReq := httptest.NewRequestWithContext(
 		context.Background(),
@@ -152,7 +158,7 @@ func csrfPOSTWithoutTokenTest(
 	t.Helper()
 
 	m, _ := testMiddleware(t, env)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	// GET to establish the CSRF cookie
 	getHandler := csrfMW(http.HandlerFunc(
@@ -209,7 +215,7 @@ func TestCSRF_POSTWithInvalidToken(t *testing.T) {
 	t.Parallel()
 
 	m, _ := testMiddleware(t, config.EnvironmentDev)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	// GET to establish the CSRF cookie
 	getHandler := csrfMW(http.HandlerFunc(
@@ -265,7 +271,7 @@ func TestCSRF_GETDoesNotValidate(t *testing.T) {
 
 	var called bool
 
-	handler := m.CSRF()(http.HandlerFunc(
+	handler := m.CSRF(http.HandlerFunc(forbidden))(http.HandlerFunc(
 		func(_ http.ResponseWriter, _ *http.Request) {
 			called = true
 		},
@@ -328,7 +334,7 @@ func csrfTookStrictPath(
 	t.Helper()
 
 	m, _ := testMiddleware(t, env)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	newReq := func(method string) *http.Request {
 		r := httptest.NewRequestWithContext(
@@ -477,7 +483,7 @@ func TestCSRF_ProdMode_PlaintextHTTP_POSTWithValidToken(
 	t.Parallel()
 
 	m, _ := testMiddleware(t, config.EnvironmentProd)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	getReq := httptest.NewRequestWithContext(
 		context.Background(),
@@ -517,7 +523,7 @@ func TestCSRF_ProdMode_BehindProxy_POSTWithValidToken(
 	t.Parallel()
 
 	m, _ := testMiddleware(t, config.EnvironmentProd)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	getReq := httptest.NewRequestWithContext(
 		context.Background(),
@@ -562,7 +568,7 @@ func TestCSRF_ProdMode_DirectTLS_POSTWithValidToken(
 	t.Parallel()
 
 	m, _ := testMiddleware(t, config.EnvironmentProd)
-	csrfMW := m.CSRF()
+	csrfMW := m.CSRF(http.HandlerFunc(forbidden))
 
 	getReq := httptest.NewRequestWithContext(
 		context.Background(),

internal/middleware/logbound_test.go

@@ -260,7 +260,9 @@ func logSites() map[string]logSite {
 			) http.Handler {
 				t.Helper()
 
-				return m.CSRF()(unreachable(t))
+				return m.CSRF(http.HandlerFunc(forbidden))(
+					unreachable(t),
+				)
 			},
 			send:       postNoToken,
 			wantStatus: http.StatusForbidden,
@@ -383,7 +385,7 @@ func TestLogLines_ClientChosenPathDoesNotSizeTheLine(t *testing.T) {
 						t, newHandler,
 					)
 
-					path := "/hook/" +
+					path := "/source/" +
 						oversizedPathSegment(fill) + "/edit"
 
 					assert.Equal(
@@ -434,7 +436,7 @@ func TestLoginThrottle_LogLineDoesNotTrackPathSize(t *testing.T) {
 				req := httptest.NewRequestWithContext(
 					context.Background(),
 					http.MethodPost,
-					"/hook/"+
+					"/source/"+
 						oversizedPathSegment(fill)+"/login",
 					nil,
 				)
@@ -499,7 +501,7 @@ func TestMaxBodySize_FloodOfOversizePathsDoesNotGrowTheLog(
 							http.StatusRequestEntityTooLarge,
 							postOversize(
 								h,
-								"/hook/"+segment(i)+"/edit",
+								"/source/"+segment(i)+"/edit",
 							),
 						)
 					}

internal/middleware/metrics.go

@@ -40,7 +40,7 @@ const unmatchedMethod = unmatchedRoute
 //
 // The pattern is what bounds the label's domain to the routes the
 // service registers. The path does not bound it at all — every byte
-// after /h/ is client-chosen, so labelling by path lets any
+// after /webhook/ is client-chosen, so labelling by path lets any
 // unauthenticated client mint permanent series at will, and publishes
 // the entrypoint UUID (the receiver's only credential) in the scrape
 // while doing it.

internal/middleware/metrics_method_test.go

@@ -50,7 +50,7 @@ func realMethods() []string {
 // dimension varying, so any series growth a probe produces is the
 // method label's and nothing else's.
 func methodProbePath() string {
-	return "/h/" + uuid.NewString()
+	return "/webhook/" + uuid.NewString()
 }
 
 // inventedMethods returns n distinct RFC 9110 method tokens that no

internal/middleware/metrics_test.go

@@ -28,7 +28,7 @@ const (
 
 	// receiverRoutePattern is the one handler label every receiver
 	// request must produce, however the client varies the path.
-	receiverRoutePattern = "/h/{uuid}"
+	receiverRoutePattern = "/webhook/{uuid}"
 
 	// okRoute is a static route used to pin that the response-writer
 	// interceptor still reports status and size after the handler id
@@ -143,13 +143,13 @@ func drivePaths(
 	return drive(t, h, probes)
 }
 
-// receiverPaths returns n distinct /h/ paths, each naming a
+// receiverPaths returns n distinct /webhook/ paths, each naming a
 // fresh UUID exactly as an unauthenticated flood would.
 func receiverPaths(n int) []string {
 	paths := make([]string, 0, n)
 
 	for range n {
-		paths = append(paths, "/h/"+uuid.NewString())
+		paths = append(paths, "/webhook/"+uuid.NewString())
 	}
 
 	return paths
@@ -220,7 +220,7 @@ func keys(set map[string]struct{}) []string {
 
 // TestMetrics_DistinctReceiverPathsMintOneLabelSet is the direct
 // assertion the issue asks for: N requests to N distinct
-// /h/<uuid> paths must produce exactly ONE handler label, the
+// /webhook/<uuid> paths must produce exactly ONE handler label, the
 // route pattern. Before the fix this produced N of them.
 func TestMetrics_DistinctReceiverPathsMintOneLabelSet(t *testing.T) {
 	t.Parallel()
@@ -250,7 +250,7 @@ func TestMetrics_DistinctReceiverPathsMintOneLabelSet(t *testing.T) {
 	// The scrape must not republish the UUIDs it was driven with.
 	// They are the receiver's only credential.
 	for _, p := range paths {
-		id := strings.TrimPrefix(p, "/h/")
+		id := strings.TrimPrefix(p, "/webhook/")
 		for label := range labels {
 			assert.NotContains(
 				t, label, id,
@@ -354,7 +354,7 @@ func TestMetrics_UnmatchedPathsCollapseToTheSentinel(t *testing.T) {
 		if i%2 == 0 {
 			paths = append(paths, "/"+id)
 		} else {
-			paths = append(paths, "/h/"+id+"/"+id)
+			paths = append(paths, "/webhook/"+id+"/"+id)
 		}
 	}
 

internal/middleware/middleware.go

@@ -257,7 +257,7 @@ func concreteLogURL(r *http.Request) string {
 //
 // 3xx and 4xx responses get the chi route pattern instead. Those are
 // the outcomes an unauthenticated client drives for free: 404 or 429
-// on any invented /h/ path, 303 to the login page on any
+// on any invented /webhook/ path, 303 to the login page on any
 // invented /user/ path. Logging the concrete URL there lets a flood
 // write attacker-chosen text, of attacker-chosen length, into the
 // operator's log at one line per request. The pattern comes from the
@@ -560,7 +560,7 @@ func (s *Middleware) MaxBodySize(
 				// internal/server/routes.go), so an
 				// unauthenticated client reaches it with a path
 				// of its own choosing and its own length —
-				// POST /hook/<8 KB>/edit with an oversize
+				// POST /source/<8 KB>/edit with an oversize
 				// declared Content-Length costs nothing to
 				// send. At WARN, on by default, that is a
 				// write into the operator's log sized by the

internal/middleware/middleware_test.go

@@ -640,7 +640,7 @@ func TestNoCache_SetsHeaders(t *testing.T) {
 
 	req := httptest.NewRequestWithContext(
 		context.Background(),
-		http.MethodGet, "/hooks", nil,
+		http.MethodGet, "/sources", nil,
 	)
 	w := httptest.NewRecorder()
 

internal/middleware/ratelimit.go

@@ -63,7 +63,7 @@ const (
 
 	// receiverAggregateMultiplier scales the configured
 	// per-entrypoint receiver limit into the aggregate limit one
-	// client IP may spend across the whole /h/* route. Ten
+	// client IP may spend across the whole /webhook/* route. Ten
 	// entrypoints' worth lets a single sender address drive several
 	// entrypoints at their full rate, while still capping what one
 	// address costs the unauthenticated receiver.
@@ -390,7 +390,7 @@ func (m *Middleware) postRateLimit(
 // It is Config.ReceiverRateLimit requests per minute.
 //
 // That limit alone bounds nothing in aggregate. The route pattern
-// /h/{uuid} matches any single segment, so a client that
+// /webhook/{uuid} matches any single segment, so a client that
 // invents a fresh path per request mints a fresh bucket per request
 // and never refills one — and every such request still reaches the
 // handler's entrypoint lookup before it 404s. The outer limit is

internal/middleware/ratelimit_test.go

@@ -275,7 +275,7 @@ func TestReceiverRateLimit_LimitsPerIPAndPath(t *testing.T) {
 	// pass.
 	for i := range limit {
 		w := receiverPost(
-			handler, "9.9.9.9:1234", "/h/uuid-a",
+			handler, "9.9.9.9:1234", "/webhook/uuid-a",
 		)
 		assert.Equal(
 			t, http.StatusOK, w.Code,
@@ -286,7 +286,7 @@ func TestReceiverRateLimit_LimitsPerIPAndPath(t *testing.T) {
 	// The next request over the limit is rejected with a 429
 	// carrying a Retry-After header.
 	w := receiverPost(
-		handler, "9.9.9.9:1234", "/h/uuid-a",
+		handler, "9.9.9.9:1234", "/webhook/uuid-a",
 	)
 	assert.Equal(t, http.StatusTooManyRequests, w.Code)
 	assert.NotEmpty(
@@ -296,7 +296,7 @@ func TestReceiverRateLimit_LimitsPerIPAndPath(t *testing.T) {
 
 	// The same IP is not limited on a different entrypoint.
 	w = receiverPost(
-		handler, "9.9.9.9:1234", "/h/uuid-b",
+		handler, "9.9.9.9:1234", "/webhook/uuid-b",
 	)
 	assert.Equal(
 		t, http.StatusOK, w.Code,
@@ -305,7 +305,7 @@ func TestReceiverRateLimit_LimitsPerIPAndPath(t *testing.T) {
 
 	// A different IP is not limited on the same entrypoint.
 	w = receiverPost(
-		handler, "8.8.8.8:1234", "/h/uuid-a",
+		handler, "8.8.8.8:1234", "/webhook/uuid-a",
 	)
 	assert.Equal(
 		t, http.StatusOK, w.Code,
@@ -322,7 +322,7 @@ func TestReceiverRateLimit_CountsEveryMethod(t *testing.T) {
 	const (
 		limit = 2
 		ip    = "7.7.7.7:1234"
-		path  = "/h/uuid-c"
+		path  = "/webhook/uuid-c"
 	)
 
 	handler := receiverLimitedHandler(t, limit)
@@ -715,7 +715,7 @@ func TestReceiverRateLimit_LimitsAggregateAcrossInventedPaths(
 	// none of them shares a per-entrypoint bucket with another.
 	for i := range aggregate {
 		w := receiverPost(
-			handler, ip, fmt.Sprintf("/h/invented-%d", i),
+			handler, ip, fmt.Sprintf("/webhook/invented-%d", i),
 		)
 		assert.Equal(
 			t, http.StatusOK, w.Code,
@@ -724,17 +724,17 @@ func TestReceiverRateLimit_LimitsAggregateAcrossInventedPaths(
 	}
 
 	w := receiverPost(
-		handler, ip, fmt.Sprintf("/h/invented-%d", aggregate),
+		handler, ip, fmt.Sprintf("/webhook/invented-%d", aggregate),
 	)
 	assert.Equal(
 		t, http.StatusTooManyRequests, w.Code,
 		"a client must not be able to raise its aggregate rate "+
-			"against /h/* by varying the path",
+			"against /webhook/* by varying the path",
 	)
 
 	// The aggregate limit is still per client IP: exhausting one
 	// address must not throttle another.
-	w = receiverPost(handler, "6.6.6.7:1234", "/h/invented-0")
+	w = receiverPost(handler, "6.6.6.7:1234", "/webhook/invented-0")
 	assert.Equal(
 		t, http.StatusOK, w.Code,
 		"a different client IP must not be affected",
@@ -771,7 +771,7 @@ func TestReceiverRateLimit_RejectedRequestsCountTowardAggregate(
 	// limit requests are served; the rest are rejected by the
 	// per-entrypoint limiter but still count against the aggregate.
 	for i := range aggregate {
-		w := receiverPost(handler, ip, "/h/exhausted")
+		w := receiverPost(handler, ip, "/webhook/exhausted")
 
 		want := http.StatusTooManyRequests
 		if i < limit {
@@ -784,7 +784,7 @@ func TestReceiverRateLimit_RejectedRequestsCountTowardAggregate(
 		)
 	}
 
-	w := receiverPost(handler, ip, "/h/never-used")
+	w := receiverPost(handler, ip, "/webhook/never-used")
 	assert.Equal(
 		t, http.StatusTooManyRequests, w.Code,
 		"requests rejected per entrypoint must still count "+
@@ -823,7 +823,7 @@ func TestReceiverRateLimit_IgnoresForwardedFromUntrustedPeer(
 	const (
 		limit = 3
 		peer  = "203.0.113.10:44444"
-		path  = "/h/uuid-d"
+		path  = "/webhook/uuid-d"
 	)
 
 	handler := receiverLimitedHandler(t, limit)

internal/server/error_page_test.go

@@ -0,0 +1,155 @@
+package server_test
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strconv"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/webhooker/internal/config"
+)
+
+// The link back the error page offers: to the webhook list for a
+// signed-in user, to sign-in for anyone else.
+const (
+	backToWebhooks = `<a href="/sources" class="btn-secondary">` +
+		`Back to webhooks</a>`
+	backToSignIn = `<a href="/pages/login" class="btn-primary">` +
+		`Sign in</a>`
+)
+
+// assertErrorPage checks that w is the error page for status, in the
+// normal layout, offering link.
+func assertErrorPage(
+	t *testing.T,
+	w *httptest.ResponseRecorder,
+	status int,
+	link string,
+) {
+	t.Helper()
+
+	body := w.Body.String()
+
+	assert.Equal(t, status, w.Code)
+	assert.Equal(
+		t, "text/html; charset=utf-8", w.Header().Get("Content-Type"),
+	)
+	assert.Contains(t, body, `<nav class="app-bar"`)
+	assert.Contains(
+		t, body, strconv.Itoa(status)+" "+http.StatusText(status),
+	)
+	assert.Contains(t, body, link)
+}
+
+func TestErrorPage_DeletedWebhook(t *testing.T) {
+	t.Parallel()
+
+	env := newTestEnv(t)
+
+	userID, _ := env.seedUser(t, "owner", "somepassword")
+	cookies := env.authCookies(t, userID, "owner")
+
+	wh := env.seedWebhook(t, userID)
+	require.NoError(t, env.db.DB().Delete(wh).Error)
+
+	w := env.get("/source/"+wh.ID, cookies)
+
+	assertErrorPage(t, w, http.StatusNotFound, backToWebhooks)
+}
+
+func TestErrorPage_DeletedTarget(t *testing.T) {
+	t.Parallel()
+
+	env := newTestEnv(t)
+
+	userID, _ := env.seedUser(t, "owner", "somepassword")
+	cookies := env.authCookies(t, userID, "owner")
+
+	wh := env.seedWebhook(t, userID)
+	tgt := env.seedTarget(t, wh.ID)
+	require.NoError(t, env.db.DB().Delete(tgt).Error)
+
+	w := env.get(
+		"/source/"+wh.ID+"/targets/"+tgt.ID+"/edit", cookies,
+	)
+
+	assertErrorPage(t, w, http.StatusNotFound, backToWebhooks)
+}
+
+func TestErrorPage_UnknownPath(t *testing.T) {
+	t.Parallel()
+
+	env := newTestEnv(t)
+
+	userID, _ := env.seedUser(t, "owner", "somepassword")
+	cookies := env.authCookies(t, userID, "owner")
+
+	assertErrorPage(
+		t, env.get("/no-such-page", nil),
+		http.StatusNotFound, backToSignIn,
+	)
+
+	// Outside every route group there is no form token, so the
+	// page leaves out the logout form rather than offer one that
+	// would be refused.
+	w := env.get("/no-such-page", cookies)
+	assertErrorPage(t, w, http.StatusNotFound, backToWebhooks)
+	assert.NotContains(t, w.Body.String(), `action="/pages/logout"`)
+
+	// Inside a route group the page has a token, and logout works.
+	wh := env.seedWebhook(t, userID)
+	w = env.get("/source/"+wh.ID+"/no-such-page", cookies)
+	assertErrorPage(t, w, http.StatusNotFound, backToWebhooks)
+	assert.Contains(t, w.Body.String(), `action="/pages/logout"`)
+}
+
+func TestErrorPage_BadCSRFToken(t *testing.T) {
+	t.Parallel()
+
+	env := newTestEnv(t)
+
+	form := url.Values{}
+	form.Set("username", "someone")
+	form.Set("password", "irrelevant")
+	form.Set("csrf_token", "not-a-token")
+
+	assertErrorPage(
+		t, env.post("/pages/login", form, nil),
+		http.StatusForbidden, backToSignIn,
+	)
+
+	userID, _ := env.seedUser(t, "owner", "somepassword")
+	cookies := env.authCookies(t, userID, "owner")
+	wh := env.seedWebhook(t, userID)
+
+	edit := url.Values{}
+	edit.Set("name", "renamed")
+
+	assertErrorPage(
+		t, env.post("/source/"+wh.ID+"/edit", edit, cookies),
+		http.StatusForbidden, backToWebhooks,
+	)
+}
+
+// TestErrorPage_ReceiverStaysPlain pins that the error page is for
+// the web UI only: a sender posting to an entrypoint that does not
+// exist still gets the plain-text answer.
+func TestErrorPage_ReceiverStaysPlain(t *testing.T) {
+	t.Parallel()
+
+	// newTestEnv leaves the receiver rate limit at zero, which
+	// refuses every request before it reaches the receiver.
+	env := newTestEnvWithConfig(t, &config.Config{
+		DataDir:           t.TempDir(),
+		Environment:       config.EnvironmentDev,
+		ReceiverRateLimit: 10,
+	})
+
+	w := env.post("/webhook/no-such-entrypoint", url.Values{}, nil)
+
+	assert.Equal(t, http.StatusNotFound, w.Code)
+	assert.Equal(t, "404 page not found\n", w.Body.String())
+}

internal/server/routes.go

@@ -46,6 +46,14 @@ const requestTimeout = 60 * time.Second
 // server's router.
 func (s *Server) SetupRoutes() {
 	s.router = chi.NewRouter()
+
+	// An unknown path gets the error page. Registered before the
+	// global middleware, because chi wraps a not-found handler in the
+	// middleware already on its router, which would then run twice.
+	// The route groups below wrap it in their own middleware the same
+	// way; running theirs twice is harmless.
+	s.router.NotFound(s.h.HandleErrorPage(http.StatusNotFound))
+
 	s.setupGlobalMiddleware()
 	s.setupRoutes()
 }
@@ -150,7 +158,7 @@ func (s *Server) setupPageRoutes() {
 		// MaxBodySize precedes CSRF and RequireAuth deliberately;
 		// see maxFormBodySize for why, and for what it costs.
 		r.Use(s.mw.MaxBodySize(maxFormBodySize))
-		r.Use(s.mw.CSRF())
+		r.Use(s.mw.CSRF(s.h.HandleErrorPage(http.StatusForbidden)))
 		r.Use(s.mw.NoCache())
 
 		// The login POST carries no pre-emptive rate limiter. Behind
@@ -171,7 +179,7 @@ func (s *Server) setupUserRoutes() {
 		// MaxBodySize precedes CSRF and RequireAuth deliberately;
 		// see maxFormBodySize for why, and for what it costs.
 		r.Use(s.mw.MaxBodySize(maxFormBodySize))
-		r.Use(s.mw.CSRF())
+		r.Use(s.mw.CSRF(s.h.HandleErrorPage(http.StatusForbidden)))
 		r.Use(s.mw.NoCache())
 		r.Use(s.mw.RequireAuth())
 		r.Get("/", s.h.HandleProfile())
@@ -182,11 +190,11 @@ func (s *Server) setupUserRoutes() {
 }
 
 func (s *Server) setupSourceRoutes() {
-	s.router.Route("/hooks", func(r chi.Router) {
+	s.router.Route("/sources", func(r chi.Router) {
 		// MaxBodySize precedes CSRF and RequireAuth deliberately;
 		// see maxFormBodySize for why, and for what it costs.
 		r.Use(s.mw.MaxBodySize(maxFormBodySize))
-		r.Use(s.mw.CSRF())
+		r.Use(s.mw.CSRF(s.h.HandleErrorPage(http.StatusForbidden)))
 		r.Use(s.mw.NoCache())
 		r.Use(s.mw.RequireAuth())
 		r.Get("/", s.h.HandleSourceList())
@@ -194,25 +202,25 @@ func (s *Server) setupSourceRoutes() {
 		r.Post("/new", s.h.HandleSourceCreateSubmit())
 	})
 
-	s.router.Route("/hook/{sourceID}", func(r chi.Router) {
+	s.router.Route("/source/{sourceID}", func(r chi.Router) {
 		// MaxBodySize precedes CSRF and RequireAuth deliberately;
 		// see maxFormBodySize for why, and for what it costs.
 		r.Use(s.mw.MaxBodySize(maxFormBodySize))
-		r.Use(s.mw.CSRF())
+		r.Use(s.mw.CSRF(s.h.HandleErrorPage(http.StatusForbidden)))
 		r.Use(s.mw.NoCache())
 		r.Use(s.mw.RequireAuth())
 		r.Get("/", s.h.HandleSourceDetail())
 		r.Get("/edit", s.h.HandleSourceEdit())
 		r.Post("/edit", s.h.HandleSourceEditSubmit())
 		r.Post("/delete", s.h.HandleSourceDelete())
-		r.Get("/events", s.h.HandleSourceLogs())
+		r.Get("/logs", s.h.HandleSourceLogs())
 		// The log page renders each body only up to its cap, so
 		// this is the only route that serves a whole one. It
 		// belongs to this group for its RequireAuth and
 		// NoCache; see HandleEventBodyDownload for the headers
 		// that keep the bytes it returns inert.
 		r.Get(
-			"/events/{eventID}/body",
+			"/logs/{eventID}/body",
 			s.h.HandleEventBodyDownload(),
 		)
 		// Replay is the one page action that queues outbound work:
@@ -279,7 +287,7 @@ func (s *Server) setupSourceRoutes() {
 
 func (s *Server) setupWebhookRoutes() {
 	s.router.With(s.mw.ReceiverRateLimit()).HandleFunc(
-		"/h/{uuid}",
+		"/webhook/{uuid}",
 		s.h.HandleWebhook(),
 	)
 }

internal/server/routes_test.go

@@ -674,7 +674,7 @@ func TestPagesLogin_CookiesFromAnEarlierDatabase(t *testing.T) {
 
 	require.NotNil(t, fresh, "login must set a session cookie")
 	assert.Equal(
-		t, "/hooks",
+		t, "/sources",
 		env.get("/", []*http.Cookie{fresh}).Header().Get("Location"),
 		"the new session cookie must authenticate",
 	)
@@ -741,7 +741,7 @@ func TestPasswordChange_UnderLimit_Succeeds(t *testing.T) {
 	)
 }
 
-// --- /hook/{sourceID} group ---
+// --- /source/{sourceID} group ---
 
 // TestSourceLogs_TruncationLinkDownloadsTheBody walks the whole
 // feature the way a user does: render the event log page through
@@ -769,11 +769,11 @@ func TestSourceLogs_TruncationLinkDownloadsTheBody(t *testing.T) {
 	wh := env.seedWebhook(t, userID)
 	env.seedEvent(t, wh.ID, stored)
 
-	page := env.get("/hook/"+wh.ID+"/events", cookies)
+	page := env.get("/source/"+wh.ID+"/logs", cookies)
 	require.Equal(t, http.StatusOK, page.Code)
 
 	link := regexp.MustCompile(
-		`href="(/hook/[^"]+/body)"`,
+		`href="(/source/[^"]+/body)"`,
 	).FindStringSubmatch(page.Body.String())
 	require.Len(
 		t, link, 2,
@@ -819,7 +819,7 @@ func TestSourceLogsBody_OtherUser404s(t *testing.T) {
 	const payload = "OWNERS-PAYLOAD-77c1"
 
 	evt := env.seedEvent(t, wh.ID, payload)
-	path := "/hook/" + wh.ID + "/events/" + evt.ID + "/body"
+	path := "/source/" + wh.ID + "/logs/" + evt.ID + "/body"
 
 	intruderID, _ := env.seedUser(t, "intruder", "somepassword")
 	intruder := env.authCookies(t, intruderID, "intruder")
@@ -853,7 +853,7 @@ func TestDeliveryReplay_PostOnlyAndCSRFProtected(t *testing.T) {
 	evt := env.seedEvent(t, wh.ID, `{"replay":"me"}`)
 	dlv := env.seedFailedDelivery(t, wh.ID, evt.ID, tgt.ID)
 
-	path := "/hook/" + wh.ID + "/deliveries/" + dlv.ID +
+	path := "/source/" + wh.ID + "/deliveries/" + dlv.ID +
 		"/replay"
 
 	assert.Equal(
@@ -879,7 +879,7 @@ func TestDeliveryReplay_PostOnlyAndCSRFProtected(t *testing.T) {
 	// 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 := "/hook/" + wh.ID + "/events"
+	logsPath := "/source/" + wh.ID + "/logs"
 
 	token, cookies := env.csrfFrom(t, logsPath, cookies)
 
@@ -887,7 +887,7 @@ func TestDeliveryReplay_PostOnlyAndCSRFProtected(t *testing.T) {
 	require.Equal(t, http.StatusOK, page.Code)
 
 	action := regexp.MustCompile(
-		`action="(/hook/[^"]+/replay)"`,
+		`action="(/source/[^"]+/replay)"`,
 	).FindStringSubmatch(page.Body.String())
 	require.Len(
 		t, action, 2,
@@ -912,59 +912,6 @@ func TestDeliveryReplay_PostOnlyAndCSRFProtected(t *testing.T) {
 	)
 }
 
-// --- /h/{uuid} receiver ---
-
-// TestReceiver_EntrypointURLIsRateLimited takes the entrypoint URL
-// the webhook page shows and posts to it through the production
-// router until the receiver rate limit refuses it. The URL has to
-// reach the receiver, and the limit has to apply to it.
-func TestReceiver_EntrypointURLIsRateLimited(t *testing.T) {
-	t.Parallel()
-
-	const limit = 2
-
-	env := newTestEnvWithConfig(t, &config.Config{
-		DataDir:           t.TempDir(),
-		Environment:       config.EnvironmentDev,
-		ReceiverRateLimit: limit,
-	})
-
-	userID, _ := env.seedUser(t, "receiver", "somepassword")
-	cookies := env.authCookies(t, userID, "receiver")
-
-	wh := env.seedWebhook(t, userID)
-	require.NoError(t, env.db.DB().Omit(clause.Associations).Create(
-		&database.Entrypoint{
-			WebhookID: wh.ID,
-			Path:      "6f1e2a9c-4b7d-4e3a-9c2f-1d8b5a7e3c60",
-			Active:    true,
-		},
-	).Error)
-
-	page := env.get("/hook/"+wh.ID, cookies)
-	require.Equal(t, http.StatusOK, page.Code)
-
-	shown := regexp.MustCompile(`(/h/[^<]+)</code>`).
-		FindStringSubmatch(page.Body.String())
-	require.Len(
-		t, shown, 2, "the webhook page should show the entrypoint URL",
-	)
-
-	for i := range limit {
-		assert.Equal(
-			t, http.StatusOK,
-			env.post(shown[1], url.Values{}, nil).Code,
-			"request %d should reach the receiver", i,
-		)
-	}
-
-	assert.Equal(
-		t, http.StatusTooManyRequests,
-		env.post(shown[1], url.Values{}, nil).Code,
-		"the receiver rate limit must apply to the entrypoint URL",
-	)
-}
-
 // metricsConfig is a Config differing from the routing default only
 // in the two /metrics credentials.
 func metricsConfig(

internal/server/sentry.go

@@ -55,7 +55,7 @@ func sentryClientOptions(dsn, release string) sentry.ClientOptions {
 //
 // URL is the third such field. NewRequest builds it as
 // scheme://host/path (interfaces.go:183), and on the receiver route
-// that path is /h/<uuid> in full — a write capability, not an
+// that path is /webhook/<uuid> in full — a write capability, not an
 // identifier. It is rebuilt here from the chi route pattern, on every
 // route, keeping the scheme and the host.
 //

internal/server/sentry_test.go

@@ -153,7 +153,7 @@ func (c sentryCase) router() http.Handler {
 		sentryhttp.New(sentryhttp.Options{Repanic: true}).Handle,
 	)
 	router.HandleFunc("/pages/login", handler)
-	router.HandleFunc("/h/{uuid}", handler)
+	router.HandleFunc("/webhook/{uuid}", handler)
 
 	return router
 }
@@ -191,7 +191,7 @@ func sentryLoginRequest(client *sentry.Client) *http.Request {
 // concrete path carries the entrypoint capability.
 func sentryReceiverRequest(client *sentry.Client) *http.Request {
 	return sentryRequest(
-		client, "/h/"+sentryReceiverUUID, "payload=hello",
+		client, "/webhook/"+sentryReceiverUUID, "payload=hello",
 	)
 }
 
@@ -316,7 +316,7 @@ func TestSentryScrub_ReplacesTheCapabilityPathWithTheRoutePattern(
 		t, marshalEvent(t, event), sentryReceiverUUID,
 	)
 	assert.Equal(
-		t, "http://example.com/h/{uuid}", event.Request.URL,
+		t, "http://example.com/webhook/{uuid}", event.Request.URL,
 	)
 }
 
@@ -401,7 +401,7 @@ func TestSentryScrub_TransactionDispatchIsUnscrubbedWithoutTheHook(
 func TestSentryScrub_FallsBackWithoutARoutePattern(t *testing.T) {
 	t.Parallel()
 
-	concrete := "https://example.com/h/" + sentryReceiverUUID
+	concrete := "https://example.com/webhook/" + sentryReceiverUUID
 
 	// A request with no chi routing context on it at all, which is
 	// what an event captured outside the router would carry.
@@ -426,7 +426,7 @@ func TestSentryScrub_FallsBackWithoutARoutePattern(t *testing.T) {
 
 			event := sentry.NewEvent()
 			event.Request = &sentry.Request{URL: concrete}
-			event.Transaction = "POST /h/" +
+			event.Transaction = "POST /webhook/" +
 				sentryReceiverUUID
 
 			scrubbed := server.ScrubSentryRequestForTest(
@@ -459,9 +459,9 @@ func TestSentryScrub_WithholdsUnparseableValues(t *testing.T) {
 
 	event := sentry.NewEvent()
 	event.Request = &sentry.Request{
-		URL: "/h/" + sentryReceiverUUID,
+		URL: "/webhook/" + sentryReceiverUUID,
 	}
-	event.Transaction = "/h/" + sentryReceiverUUID
+	event.Transaction = "/webhook/" + sentryReceiverUUID
 
 	scrubbed := server.ScrubSentryRequestForTest(event, nil)
 	require.NotNil(t, scrubbed)

templates/error.html

@@ -0,0 +1,15 @@
+{{template "base" .}}
+
+{{define "title"}}{{.StatusText}} - Webhooker{{end}}
+
+{{define "content"}}
+<div class="max-w-4xl mx-auto px-6 py-12">
+    <h1 class="text-2xl font-medium text-gray-900 mb-4">{{.Status}} {{.StatusText}}</h1>
+    <p class="text-gray-600 mb-6">{{.Message}}</p>
+    {{if .User}}
+    <a href="/sources" class="btn-secondary">Back to webhooks</a>
+    {{else}}
+    <a href="/pages/login" class="btn-primary">Sign in</a>
+    {{end}}
+</div>
+{{end}}

templates/navbar.html

@@ -16,7 +16,7 @@
         <!-- Desktop navigation -->
         <div class="hidden md:flex items-center gap-4">
             {{if .User}}
-            <a href="/hooks" class="btn-text">Webhooks</a>
+            <a href="/sources" class="btn-text">Webhooks</a>
             <a href="/user/{{.User.Username}}" class="btn-text">
                 <svg class="w-5 h-5 mr-1" fill="currentColor" viewBox="0 0 16 16">
                     <path d="M11 6a3 3 0 1 1-6 0 3 3 0 0 1 6 0z"/>
@@ -24,10 +24,14 @@
                 </svg>
                 {{.User.Username}}
             </a>
+            {{/* The page for an unknown path is served outside the routes
+                 that issue a form token, and a logout without one is refused. */}}
+            {{if .CSRFToken}}
             <form method="POST" action="/pages/logout" class="inline">
                 <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
                 <button type="submit" class="btn-text">Logout</button>
             </form>
+            {{end}}
             {{else}}
             <a href="/pages/login" class="btn-primary">Login</a>
             {{end}}
@@ -38,12 +42,14 @@
     <div x-show="open" x-cloak x-transition class="md:hidden mt-4 pt-4 border-t border-gray-200">
         <div class="flex flex-col gap-2">
             {{if .User}}
-            <a href="/hooks" class="btn-text w-full text-left">Webhooks</a>
+            <a href="/sources" class="btn-text w-full text-left">Webhooks</a>
             <a href="/user/{{.User.Username}}" class="btn-text w-full text-left">Profile</a>
+            {{if .CSRFToken}}
             <form method="POST" action="/pages/logout">
                 <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
                 <button type="submit" class="btn-text w-full text-left">Logout</button>
             </form>
+            {{end}}
             {{else}}
             <a href="/pages/login" class="btn-primary w-full">Login</a>
             {{end}}

templates/source_detail.html

@@ -5,7 +5,7 @@
 {{define "content"}}
 <div class="max-w-6xl mx-auto px-6 py-8" x-data="{ showAddEntrypoint: false, showAddTarget: false }">
     <div class="mb-6">
-        <a href="/hooks" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to webhooks</a>
+        <a href="/sources" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to webhooks</a>
         <div class="flex justify-between items-center mt-2">
             <div>
                 <h1 class="text-2xl font-medium text-gray-900">{{.Webhook.Name}}</h1>
@@ -14,9 +14,9 @@
                 {{end}}
             </div>
             <div class="flex gap-2">
-                <a href="/hook/{{.Webhook.ID}}/events" class="btn-secondary">Full Event Log</a>
-                <a href="/hook/{{.Webhook.ID}}/edit" class="btn-secondary">Edit</a>
-                <form method="POST" action="/hook/{{.Webhook.ID}}/delete" onsubmit="return confirm('Delete this webhook and all its data?')">
+                <a href="/source/{{.Webhook.ID}}/logs" class="btn-secondary">Event Log</a>
+                <a href="/source/{{.Webhook.ID}}/edit" class="btn-secondary">Edit</a>
+                <form method="POST" action="/source/{{.Webhook.ID}}/delete" onsubmit="return confirm('Delete this webhook and all its data?')">
                     <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
                     <button type="submit" class="btn-danger">Delete</button>
                 </form>
@@ -39,7 +39,7 @@
 
             <!-- Add entrypoint form -->
             <div x-show="showAddEntrypoint" x-cloak class="p-4 bg-gray-50 border-b border-gray-200">
-                <form method="POST" action="/hook/{{.Webhook.ID}}/entrypoints" class="flex gap-2">
+                <form method="POST" action="/source/{{.Webhook.ID}}/entrypoints" class="flex gap-2">
                     <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
                     <input type="text" name="description" placeholder="Description (optional)" class="input text-sm flex-1">
                     <button type="submit" class="btn-primary text-sm">Add</button>
@@ -57,20 +57,20 @@
                             {{else}}
                             <span class="badge-error">Inactive</span>
                             {{end}}
-                            <form method="POST" action="/hook/{{$.Webhook.ID}}/entrypoints/{{.ID}}/toggle" class="inline">
+                            <form method="POST" action="/source/{{$.Webhook.ID}}/entrypoints/{{.ID}}/toggle" class="inline">
                                 <input type="hidden" name="csrf_token" value="{{$.CSRFToken}}">
                                 <button type="submit" class="text-xs text-gray-500 hover:text-primary-600" title="{{if .Active}}Deactivate{{else}}Activate{{end}}">
                                     {{if .Active}}Deactivate{{else}}Activate{{end}}
                                 </button>
                             </form>
-                            <form method="POST" action="/hook/{{$.Webhook.ID}}/entrypoints/{{.ID}}/delete" onsubmit="return confirm('Delete this entrypoint?')" class="inline">
+                            <form method="POST" action="/source/{{$.Webhook.ID}}/entrypoints/{{.ID}}/delete" onsubmit="return confirm('Delete this entrypoint?')" class="inline">
                                 <input type="hidden" name="csrf_token" value="{{$.CSRFToken}}">
                                 <button type="submit" class="text-xs text-red-500 hover:text-red-700" title="Delete">Delete</button>
                             </form>
                         </div>
                     </div>
                     <div class="flex items-start gap-2 mt-1">
-                        <code id="entrypoint-url-{{.ID}}" class="text-xs text-gray-500 break-all block flex-1">{{$.BaseURL}}/h/{{.Path}}</code>
+                        <code id="entrypoint-url-{{.ID}}" class="text-xs text-gray-500 break-all block flex-1">{{$.BaseURL}}/webhook/{{.Path}}</code>
                         <!-- Hidden until app.js reveals it; without the
                              script the URL above stays selectable. -->
                         <button type="button" hidden data-copy-target="entrypoint-url-{{.ID}}" class="text-xs text-gray-500 hover:text-primary-600">Copy</button>
@@ -98,7 +98,7 @@
 
             <!-- Add target form -->
             <div x-show="showAddTarget" x-cloak class="p-4 bg-gray-50 border-b border-gray-200">
-                <form method="POST" action="/hook/{{.Webhook.ID}}/targets" x-data="{ targetType: 'http' }" class="space-y-3">
+                <form method="POST" action="/source/{{.Webhook.ID}}/targets" x-data="{ targetType: 'http' }" class="space-y-3">
                     <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
                     <div class="flex gap-2">
                         <input type="text" name="name" placeholder="Target name" required class="input text-sm flex-1">
@@ -151,14 +151,14 @@
                             {{else}}
                             <span class="badge-error">Inactive</span>
                             {{end}}
-                            <a href="/hook/{{$.Webhook.ID}}/targets/{{.ID}}/edit" class="text-xs text-gray-500 hover:text-primary-600" title="Edit">Edit</a>
-                            <form method="POST" action="/hook/{{$.Webhook.ID}}/targets/{{.ID}}/toggle" class="inline">
+                            <a href="/source/{{$.Webhook.ID}}/targets/{{.ID}}/edit" class="text-xs text-gray-500 hover:text-primary-600" title="Edit">Edit</a>
+                            <form method="POST" action="/source/{{$.Webhook.ID}}/targets/{{.ID}}/toggle" class="inline">
                                 <input type="hidden" name="csrf_token" value="{{$.CSRFToken}}">
                                 <button type="submit" class="text-xs text-gray-500 hover:text-primary-600" title="{{if .Active}}Deactivate{{else}}Activate{{end}}">
                                     {{if .Active}}Deactivate{{else}}Activate{{end}}
                                 </button>
                             </form>
-                            <form method="POST" action="/hook/{{$.Webhook.ID}}/targets/{{.ID}}/delete" onsubmit="return confirm('Delete this target?')" class="inline">
+                            <form method="POST" action="/source/{{$.Webhook.ID}}/targets/{{.ID}}/delete" onsubmit="return confirm('Delete this target?')" class="inline">
                                 <input type="hidden" name="csrf_token" value="{{$.CSRFToken}}">
                                 <button type="submit" class="text-xs text-red-500 hover:text-red-700" title="Delete">Delete</button>
                             </form>
@@ -182,7 +182,7 @@
     <div class="card mt-6">
         <div class="p-4 border-b border-gray-200 flex justify-between items-center">
             <h2 class="text-lg font-medium text-gray-900">Recent Events</h2>
-            <a href="/hook/{{.Webhook.ID}}/events" class="btn-text text-sm">Full Event Log</a>
+            <a href="/source/{{.Webhook.ID}}/logs" class="btn-text text-sm">View All</a>
         </div>
         <div class="divide-y divide-gray-100">
             {{range .Events}}

templates/source_edit.html

@@ -5,7 +5,7 @@
 {{define "content"}}
 <div class="max-w-2xl mx-auto px-6 py-8">
     <div class="mb-6">
-        <a href="/hook/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
+        <a href="/source/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
         <h1 class="text-2xl font-medium text-gray-900 mt-2">Edit Webhook</h1>
     </div>
 
@@ -14,7 +14,7 @@
         <div class="alert-error">{{.Error}}</div>
         {{end}}
 
-        <form method="POST" action="/hook/{{.Webhook.ID}}/edit" class="space-y-6">
+        <form method="POST" action="/source/{{.Webhook.ID}}/edit" class="space-y-6">
             <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
             <div class="form-group">
                 <label for="name" class="label">Name</label>
@@ -34,7 +34,7 @@
 
             <div class="flex gap-3">
                 <button type="submit" class="btn-primary">Save Changes</button>
-                <a href="/hook/{{.Webhook.ID}}" class="btn-secondary">Cancel</a>
+                <a href="/source/{{.Webhook.ID}}" class="btn-secondary">Cancel</a>
             </div>
         </form>
     </div>

templates/source_logs.html

@@ -1,13 +1,13 @@
 {{template "base" .}}
 
-{{define "title"}}Full Event Log - {{.Webhook.Name}} - Webhooker{{end}}
+{{define "title"}}Event Log - {{.Webhook.Name}} - Webhooker{{end}}
 
 {{define "content"}}
 <div class="max-w-6xl mx-auto px-6 py-8">
     <div class="mb-6">
-        <a href="/hook/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
+        <a href="/source/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
         <div class="flex justify-between items-center mt-2">
-            <h1 class="text-2xl font-medium text-gray-900">Full Event Log</h1>
+            <h1 class="text-2xl font-medium text-gray-900">Event Log</h1>
             <span class="text-sm text-gray-500">{{.TotalEvents}} total event{{if ne .TotalEvents 1}}s{{end}}</span>
         </div>
     </div>
@@ -55,7 +55,7 @@
                             {{if .ResubmittedFrom}}Resubmitted from event <span class="font-mono">{{.ResubmittedFromID}}</span>.{{end}}
                             {{if .ResubmitCount}}Resubmitted as {{.ResubmitCount}} new event{{if ne .ResubmitCount 1}}s{{end}}.{{end}}
                         </div>
-                        <form method="POST" action="/hook/{{$.Webhook.ID}}/events/{{.ID}}/resubmit" class="inline">
+                        <form method="POST" action="/source/{{$.Webhook.ID}}/events/{{.ID}}/resubmit" class="inline">
                             <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="Submit this event again as a new event, to every currently active target">Resubmit</button>
@@ -63,7 +63,7 @@
                     </div>
                     <pre class="text-xs text-gray-700 overflow-x-auto whitespace-pre-wrap break-all">{{.Body}}</pre>
                     {{if .BodyTruncated}}
-                    <p class="mt-2 text-xs text-gray-500">Body truncated for display: showing {{.BodyShownBytes}} of {{.BodyBytes}} bytes. The stored body is unchanged &mdash; <a href="/hook/{{$.Webhook.ID}}/events/{{.ID}}/body" class="text-primary-600 hover:text-primary-700 underline">download the full body</a>.</p>
+                    <p class="mt-2 text-xs text-gray-500">Body truncated for display: showing {{.BodyShownBytes}} of {{.BodyBytes}} bytes. The stored body is unchanged &mdash; <a href="/source/{{$.Webhook.ID}}/logs/{{.ID}}/body" class="text-primary-600 hover:text-primary-700 underline">download the full body</a>.</p>
                     {{end}}
 
                     {{if .Deliveries}}
@@ -79,7 +79,7 @@
                                     </div>
                                     <div class="flex items-center gap-3">
                                         {{if .Status.Terminal}}
-                                        <form method="POST" action="/hook/{{$.Webhook.ID}}/deliveries/{{.ID}}/replay" class="inline" @click.stop>
+                                        <form method="POST" action="/source/{{$.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>
@@ -139,11 +139,11 @@
     {{if or .HasPrev .HasNext}}
     <div class="flex justify-center gap-2 mt-6">
         {{if .HasPrev}}
-        <a href="/hook/{{.Webhook.ID}}/events?page={{.PrevPage}}" class="btn-secondary text-sm">&larr; Previous</a>
+        <a href="/source/{{.Webhook.ID}}/logs?page={{.PrevPage}}" class="btn-secondary text-sm">&larr; Previous</a>
         {{end}}
         <span class="inline-flex items-center px-4 py-2 text-sm text-gray-500">Page {{.Page}} of {{.TotalPages}}</span>
         {{if .HasNext}}
-        <a href="/hook/{{.Webhook.ID}}/events?page={{.NextPage}}" class="btn-secondary text-sm">Next &rarr;</a>
+        <a href="/source/{{.Webhook.ID}}/logs?page={{.NextPage}}" class="btn-secondary text-sm">Next &rarr;</a>
         {{end}}
     </div>
     {{end}}

templates/sources_list.html

@@ -6,7 +6,7 @@
 <div class="max-w-6xl mx-auto px-6 py-8">
     <div class="flex justify-between items-center mb-6">
         <h1 class="text-2xl font-medium text-gray-900">Webhooks</h1>
-        <a href="/hooks/new" class="btn-primary">
+        <a href="/sources/new" class="btn-primary">
             <svg class="w-5 h-5 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4v16m8-8H4"/>
             </svg>
@@ -17,7 +17,7 @@
     {{if .Webhooks}}
     <div class="grid gap-4">
         {{range .Webhooks}}
-        <a href="/hook/{{.ID}}" class="card-elevated p-6 block">
+        <a href="/source/{{.ID}}" class="card-elevated p-6 block">
             <div class="flex justify-between items-start">
                 <div>
                     <h2 class="text-lg font-medium text-gray-900">{{.Name}}</h2>
@@ -42,7 +42,7 @@
         </svg>
         <h2 class="text-lg font-medium text-gray-900 mb-2">No webhooks yet</h2>
         <p class="text-gray-500 mb-6">Create your first webhook to start receiving and forwarding events.</p>
-        <a href="/hooks/new" class="btn-primary">Create Webhook</a>
+        <a href="/sources/new" class="btn-primary">Create Webhook</a>
     </div>
     {{end}}
 </div>

templates/sources_new.html

@@ -5,7 +5,7 @@
 {{define "content"}}
 <div class="max-w-2xl mx-auto px-6 py-8">
     <div class="mb-6">
-        <a href="/hooks" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to webhooks</a>
+        <a href="/sources" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to webhooks</a>
         <h1 class="text-2xl font-medium text-gray-900 mt-2">Create Webhook</h1>
     </div>
 
@@ -14,7 +14,7 @@
         <div class="alert-error">{{.Error}}</div>
         {{end}}
 
-        <form method="POST" action="/hooks/new" class="space-y-6">
+        <form method="POST" action="/sources/new" class="space-y-6">
             <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
             <div class="form-group">
                 <label for="name" class="label">Name</label>
@@ -34,7 +34,7 @@
 
             <div class="flex gap-3">
                 <button type="submit" class="btn-primary">Create Webhook</button>
-                <a href="/hooks" class="btn-secondary">Cancel</a>
+                <a href="/sources" class="btn-secondary">Cancel</a>
             </div>
         </form>
     </div>

templates/target_edit.html

@@ -5,7 +5,7 @@
 {{define "content"}}
 <div class="max-w-2xl mx-auto px-6 py-8">
     <div class="mb-6">
-        <a href="/hook/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
+        <a href="/source/{{.Webhook.ID}}" class="text-sm text-primary-600 hover:text-primary-700">&larr; Back to {{.Webhook.Name}}</a>
         <h1 class="text-2xl font-medium text-gray-900 mt-2">Edit Target</h1>
         <p class="text-sm text-gray-500 mt-1">Type: {{.Target.Type}}. A target's type cannot be changed; create a new target to deliver a different way.</p>
     </div>
@@ -21,7 +21,7 @@
         </div>
         {{end}}
 
-        <form method="POST" action="/hook/{{.Webhook.ID}}/targets/{{.Target.ID}}/edit" class="space-y-6">
+        <form method="POST" action="/source/{{.Webhook.ID}}/targets/{{.Target.ID}}/edit" class="space-y-6">
             <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
 
             <div class="form-group">
@@ -75,7 +75,7 @@
 
             <div class="flex gap-3">
                 <button type="submit" class="btn-primary">Save Changes</button>
-                <a href="/hook/{{.Webhook.ID}}" class="btn-secondary">Cancel</a>
+                <a href="/source/{{.Webhook.ID}}" class="btn-secondary">Cancel</a>
             </div>
         </form>
     </div>