Files
dnswatcher/internal/server/routes.go
T
clawbot 8aaa103956
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middleware: add security response headers (closes #98)
Adds a SecurityHeaders middleware and registers it globally, right after the request ID middleware, so every route gets the headers, including static files, /metrics and error responses.

It sets Strict-Transport-Security (one year, includeSubDomains), a Content-Security-Policy with default-src 'self', no scripts and frame-ancestors 'none', X-Frame-Options DENY, X-Content-Type-Options nosniff, Referrer-Policy no-referrer and a Permissions-Policy that turns every listed feature off.

HSTS is sent on every response, not only over TLS: the service runs behind a TLS-terminating proxy and REPO_POLICIES.md requires the application to send it. Referrer-Policy is stricter than the policy baseline because dashboard URLs can name internal hosts.

model: claude-opus-4-8 (implementation); claude-fable-5 (commit message)
2026-09-22 00:52:48 +02:00

66 lines
1.4 KiB
Go

package server
import (
"net/http"
"time"
"github.com/go-chi/chi/v5"
chimw "github.com/go-chi/chi/v5/middleware"
"github.com/prometheus/client_golang/prometheus/promhttp"
"sneak.berlin/go/dnswatcher/static"
)
// requestTimeout is the maximum duration for handling a request.
const requestTimeout = 60 * time.Second
// SetupRoutes configures all HTTP routes.
func (s *Server) SetupRoutes() {
s.router = chi.NewRouter()
// Global middleware
s.router.Use(chimw.Recoverer)
s.router.Use(chimw.RequestID)
s.router.Use(s.mw.SecurityHeaders())
s.router.Use(s.mw.Logging())
s.router.Use(s.mw.CORS())
s.router.Use(chimw.Timeout(requestTimeout))
// Dashboard (read-only web UI)
s.router.Get("/", s.handlers.HandleDashboard())
// Static assets (embedded CSS/JS)
s.router.Mount(
"/s",
http.StripPrefix(
"/s",
http.FileServer(http.FS(static.Static)),
),
)
// Health check (standard well-known path)
s.router.Get(
"/.well-known/healthcheck",
s.handlers.HandleHealthCheck(),
)
// Legacy health check (keep for backward compatibility)
s.router.Get("/health", s.handlers.HandleHealthCheck())
// API v1 routes
s.router.Route("/api/v1", func(r chi.Router) {
r.Get("/status", s.handlers.HandleStatus())
})
// Metrics endpoint (optional, with basic auth)
if s.params.Config.MetricsUsername != "" {
s.router.Group(func(r chi.Router) {
r.Use(s.mw.MetricsAuth())
r.Get(
"/metrics",
promhttp.Handler().ServeHTTP,
)
})
}
}