Add RequireUser middleware

context/users.go

@@ -47,3 +47,25 @@ func (umw UserMiddleware) SetUser(next http.Handler) http.Handler {
 		next.ServeHTTP(w, r)
 	})
 }
+
+func (umw UserMiddleware) RequireUserfn(next http.HandlerFunc) http.HandlerFunc {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		user := User(r.Context())
+		if user == nil {
+			http.Redirect(w, r, "/signin", http.StatusFound)
+			return
+		}
+		next(w, r)
+	})
+}
+
+func (umw UserMiddleware) RequireUser(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		user := User(r.Context())
+		if user == nil {
+			http.Redirect(w, r, "/signin", http.StatusFound)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}