Clojurescript Websockets出现Sente 403错误

Question

我正在尝试从本地主机上的两个不同端口建立Web套接字连接。我正在使用Sente和Immutant。我有以下内容，但尝试连接时会返回403禁止

Server.clj

(defn handler
  "Comment"
  []
  "<h1>Hello World</h1>")

(let [{:keys [ch-recv send-fn connected-uids
              ajax-post-fn ajax-get-or-ws-handshake-fn]}
      (sente/make-channel-socket! (get-sch-adapter) {})]

  (def ring-ajax-post                ajax-post-fn)
  (def ring-ajax-get-or-ws-handshake ajax-get-or-ws-handshake-fn)
  (def ch-chsk                       ch-recv) ; ChannelSocket's receive channel
  (def chsk-send!                    send-fn) ; ChannelSocket's send API fn
  (def connected-uids                connected-uids) ; Watchable, read-only atom
  )

(defroutes app
  "The router."
  (GET "/" [] (handler))
  (GET  "/chsk" req (ring-ajax-get-or-ws-handshake req))
  (POST "/chsk" req (ring-ajax-post                req))
  (route/not-found
       "<h1>Page not found</h1>"))

(def my-app
  (-> app
      ;; Add necessary Ring middleware:
      ring.middleware.keyword-params/wrap-keyword-params
      ring.middleware.params/wrap-params))

(def wrapped
  (wrap-cors my-app :access-control-allow-origin [#".*"]
                       :access-control-allow-methods [:get :put :post :delete]))

(defn -main
  "Start the server"
  [& args]
  (immutant/run wrapped {:host "localhost" :port 8080 :path "/"}))

这不会引发任何错误，并且“ /”路由正确显示。

Client.cljs

(let [{:keys [chsk ch-recv send-fn state]}
      (sente/make-channel-socket! "/chsk" ; Note the same path as before
      "sdasds" ; dummy
       {:type :auto ; e/o #{:auto :ajax :ws}
        :host "localhost:8080/"
       }
        )]
  (def chsk       chsk)
  (def ch-chsk    ch-recv) ; ChannelSocket's receive channel
  (def chsk-send! send-fn) ; ChannelSocket's send API fn
  (def chsk-state state)   ; Watchable, read-only atom
  )

这会在尝试连接时抛出403错误。我不确定为什么要这样做，我已经看了一段时间，但结果却很短。

Answer 1

我相信这是CSRF反伪造的问题：

Sente docs:

这很重要。 Sente有支持，但是您需要使用诸如环防伪的中间件来生成和检查CSRF代码。应当覆盖环-ajax-post处理程序（即，对其进行保护）。

在Sente official example中，他们显示了如何正确设置它。