chore: use common internal auth

internal/pf/http.go

@@ -32,8 +32,14 @@ func (s Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		writeJSON(w, http.StatusOK, map[string]string{"service": "monitoring-pf", "ui": "portal", "api": "go"})
 	case !strings.HasPrefix(path, "/api/v1"):
 		writeError(w, http.StatusNotFound, "not found")
-	case !s.checkInternalAuth(w, r):
+	default:
-		return
+		commonmw.InternalAuth(s.App.Cfg.InternalAPIKey)(http.HandlerFunc(s.serveAPI)).ServeHTTP(w, r)
+	}
+}
+
+func (s Server) serveAPI(w http.ResponseWriter, r *http.Request) {
+	path := s.apiPath(r.URL.Path)
+	switch {
 	case path == "/api/v1/access/me" && r.Method == http.MethodGet:
 		s.accessMe(w, r)
 	case path == "/api/v1/summary" && r.Method == http.MethodGet:
@@ -55,18 +61,6 @@ func (s Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-func (s Server) checkInternalAuth(w http.ResponseWriter, r *http.Request) bool {
-	want := strings.TrimSpace(s.App.Cfg.InternalAPIKey)
-	if want == "" {
-		return true
-	}
-	if r.Header.Get("X-Internal-Key") != want {
-		writeError(w, http.StatusUnauthorized, "unauthorized")
-		return false
-	}
-	return true
-}
-
 func (s Server) apiPath(path string) string {
 	base := s.App.Cfg.PublicBasePath
 	if base != "" && path == base {