158 lines
8.1 KiB
Go
158 lines
8.1 KiB
Go
package web
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import (
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"context"
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"fmt"
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"io/fs"
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"log/slog"
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"net/http"
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"time"
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"backend/internal/auth"
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"github.com/go-chi/chi/v5"
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chimw "github.com/go-chi/chi/v5/middleware"
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)
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// Pinger is the contract /readyz uses to probe the data plane. *pgxpool.Pool
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// satisfies this interface out of the box, which is why cmd/web passes the
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// pool directly to NewRouter (no adapter required).
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type Pinger interface {
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Ping(ctx context.Context) error
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}
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// NewRouter constructs the chi router with the middleware stack locked by
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// CONTEXT D-24:
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//
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// 1. RequestIDMiddleware (UUIDv4 — NOT chi's base32 RequestID)
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// 2. chi RealIP
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// 3. SlogLoggerMiddleware (REPLACES chi's middleware.Logger — Pitfall 6)
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// 4. chi Recoverer (after Logger so panics carry request_id)
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// 5. auth.ResolveSession (reads session cookie, attaches user to context) — D-24
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// 6. auth.Mount (gorilla/csrf — MUST come after ResolveSession, before routes) — D-24, Pitfall 7
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//
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// Routes: GET / · GET /healthz (liveness) · GET /readyz (readiness) · GET /demo/time · GET /static/*
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//
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// GET /signup (auth pages, behind RedirectIfAuthed) · POST /signup.
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//
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// staticFS is the embedded FS (or os.DirFS in tests) served at /static/*; the
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// embedded FS pattern blocks path traversal at the http.FS layer (T-01-08).
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//
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// deps.Store may be nil during unit tests for Phase 1 routes (those routes
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// never exercise session resolution). ResolveSession guards against nil Store.
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//
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// csrfKey is the 32-byte CSRF authentication key loaded from SESSION_SECRET.
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// env is the runtime environment string (e.g. "dev", "development", "production").
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// When env == "dev", the CSRF cookie Secure flag is disabled for plain-HTTP
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// local development (D-15, D-24).
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// trustedOrigins is an optional list of additional origins for the CSRF
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// referer check (used in integration tests to allow localhost requests without
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// a Referer header). In production, pass no extra args — leave empty.
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func NewRouter(pinger Pinger, staticFS fs.FS, deps AuthDeps, tabloDeps TablosDeps, taskDeps TasksDeps, etapeDeps EtapesDeps, eventDeps EventsDeps, fileDeps FilesDeps, csrfKey []byte, env string, trustedOrigins ...string) (http.Handler, error) {
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r := chi.NewRouter()
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r.Use(RequestIDMiddleware)
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r.Use(chimw.RealIP)
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r.Use(SlogLoggerMiddleware(slog.Default()))
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r.Use(chimw.Recoverer)
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// D-24 locked order: ResolveSession BEFORE csrf.Protect (auth.Mount).
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r.Use(auth.ResolveSession(deps.Store))
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// D-24: gorilla/csrf runs after ResolveSession and before all route groups (Pitfall 7).
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r.Use(auth.Mount(env, csrfKey, trustedOrigins...))
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// Auth pages — redirect to / if already authenticated.
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r.Group(func(r chi.Router) {
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r.Use(auth.RedirectIfAuthed)
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r.Get("/signup", SignupPageHandler(deps))
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r.Get("/login", LoginPageHandler(deps))
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})
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// Signup and login POSTs are intentionally outside the RedirectIfAuthed group:
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// an authed user submitting the form directly should still get a useful
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// response; the GET guard handles the common case.
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r.Post("/signup", SignupPostHandler(deps))
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r.Post("/login", LoginPostHandler(deps))
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r.Get("/auth/google/start", GoogleStartHandler(deps))
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r.Get("/auth/google/callback", GoogleCallbackHandler(deps))
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// Protected routes — require an authenticated session (D-23, AUTH-05).
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// RequireAuth checks the context set by ResolveSession above and redirects
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// unauthenticated requests to /login (HTMX: HX-Redirect, plain: 303).
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// Route ordering: static segments (/tablos/new) declared BEFORE parametric
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// (/tablos/{id}) so chi v5 resolves them correctly (Pitfall 1).
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r.Group(func(r chi.Router) {
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r.Use(auth.RequireAuth)
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r.Get("/", TablosListHandler(tabloDeps))
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r.Post("/logout", LogoutHandler(deps))
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r.Get("/account/providers", AccountProvidersHandler(deps))
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// Static segments BEFORE parametric (Pitfall 1 — chi v5 route resolution).
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r.Get("/tablos/new", TablosNewHandler(tabloDeps))
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r.Post("/tablos", TablosCreateHandler(tabloDeps))
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// Parametric routes — must come after /tablos/new and /tablos POST.
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r.Get("/tablos/{id}", TabloDetailHandler(tabloDeps))
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r.Post("/tablos/{id}", TabloUpdateHandler(tabloDeps))
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r.Get("/tablos/{id}/edit-title", TabloEditTitleHandler(tabloDeps))
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r.Get("/tablos/{id}/show-title", TabloShowTitleHandler(tabloDeps))
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r.Get("/tablos/{id}/edit-desc", TabloEditDescHandler(tabloDeps))
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r.Get("/tablos/{id}/show-desc", TabloShowDescHandler(tabloDeps))
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r.Get("/tablos/{id}/delete-confirm", TabloDeleteConfirmHandler(tabloDeps))
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r.Get("/tablos/{id}/delete-cancel", TabloDeleteCancelHandler(tabloDeps))
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r.Post("/tablos/{id}/delete", TabloDeleteHandler(tabloDeps))
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// Tasks tab entry point — must be BEFORE static task sub-routes (Pitfall 1).
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r.Get("/tablos/{id}/tasks", TabloTasksTabHandler(fileDeps))
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// Task routes — static segments BEFORE parametric (Pitfall 1).
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// /tablos/{id}/tasks/new and /tablos/{id}/tasks/cancel-new are static
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// segments relative to /tablos/{id}/tasks/* and must come first.
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r.Get("/tablos/{id}/tasks/new", TaskNewFormHandler(taskDeps))
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r.Get("/tablos/{id}/tasks/cancel-new", TaskCancelNewHandler(taskDeps))
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r.Post("/tablos/{id}/tasks", TaskCreateHandler(taskDeps))
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r.Post("/tablos/{id}/tasks/reorder", TaskReorderHandler(taskDeps))
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r.Get("/tablos/{id}/etapes/new", EtapeNewFormHandler(etapeDeps))
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r.Get("/tablos/{id}/etapes/cancel-new", EtapeCancelNewHandler(etapeDeps))
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r.Post("/tablos/{id}/etapes", EtapeCreateHandler(etapeDeps))
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r.Post("/tablos/{id}/etapes/reorder", EtapeReorderHandler(etapeDeps))
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r.Get("/tablos/{id}/etapes/{etape_id}/edit", EtapeEditFormHandler(etapeDeps))
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r.Post("/tablos/{id}/etapes/{etape_id}", EtapeUpdateHandler(etapeDeps))
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r.Get("/tablos/{id}/etapes/{etape_id}/delete-confirm", EtapeDeleteConfirmHandler(etapeDeps))
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r.Post("/tablos/{id}/etapes/{etape_id}/delete", EtapeDeleteHandler(etapeDeps))
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// Events tab and event routes — static segments BEFORE future parametric routes.
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r.Get("/tablos/{id}/events", TabloEventsTabHandler(eventDeps))
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r.Get("/tablos/{id}/events/new", EventNewFormHandler(eventDeps))
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r.Get("/tablos/{id}/events/cancel-new", EventCancelNewHandler(eventDeps))
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r.Post("/tablos/{id}/events", EventCreateHandler(eventDeps))
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r.Get("/tablos/{id}/events/{event_id}/edit", EventEditFormHandler(eventDeps))
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r.Post("/tablos/{id}/events/{event_id}", EventUpdateHandler(eventDeps))
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r.Get("/tablos/{id}/events/{event_id}/delete-confirm", EventDeleteConfirmHandler(eventDeps))
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r.Post("/tablos/{id}/events/{event_id}/delete", EventDeleteHandler(eventDeps))
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// Parametric task routes — must come after static task segments.
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r.Get("/tablos/{id}/tasks/{task_id}/show", TaskShowHandler(taskDeps))
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r.Get("/tablos/{id}/tasks/{task_id}/edit", TaskEditHandler(taskDeps))
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r.Post("/tablos/{id}/tasks/{task_id}", TaskUpdateHandler(taskDeps))
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r.Get("/tablos/{id}/tasks/{task_id}/delete-confirm", TaskDeleteConfirmHandler(taskDeps))
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r.Post("/tablos/{id}/tasks/{task_id}/delete", TaskDeleteHandler(taskDeps))
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// File routes — static segments BEFORE parametric (Pitfall 6 in RESEARCH).
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r.Get("/tablos/{id}/files", TabloFilesTabHandler(fileDeps))
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r.Post("/tablos/{id}/files", FileUploadHandler(fileDeps))
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// Parametric file routes — AFTER static file segment.
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r.Get("/tablos/{id}/files/{file_id}/download", FileDownloadHandler(fileDeps))
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r.Get("/tablos/{id}/files/{file_id}/delete-confirm", FileDeleteConfirmHandler(fileDeps))
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r.Post("/tablos/{id}/files/{file_id}/delete", FileDeleteHandler(fileDeps))
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})
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// Liveness probe (D-12): always 200, no DB contact.
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r.Get("/healthz", HealthzHandler())
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// Readiness probe (D-13): probes DB; 200 when ready, 503 when degraded.
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r.Get("/readyz", ReadyzHandler(pinger))
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r.Get("/demo/time", DemoTimeHandler(func() time.Time { return time.Now() }))
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// Serve embedded static assets. Sub to strip the "static/" prefix from the
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// embedded path so /static/tailwind.css maps to static/tailwind.css inside
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// the FS. The "fs" local name is avoided to prevent shadowing the "io/fs" import.
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sub, err := fs.Sub(staticFS, "static")
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if err != nil {
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return nil, fmt.Errorf("router: failed to sub static FS: %w", err)
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}
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fileHandler := http.StripPrefix("/static/", http.FileServer(http.FS(sub)))
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r.Get("/static/*", fileHandler.ServeHTTP)
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return r, nil
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}
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