Question

我遇到与网络套接字连接的问题。有一个错误：

Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" IS NULL LIMIT ?  [["LIMIT", 1]]
An unauthorized connection attempt was rejected
Failed to upgrade to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
Finished "/cable/" [WebSocket] for 127.0.0.1 at 2016-09-11 18:57:49 +0200
Finished "/cable/" [WebSocket] for 127.0.0.1 at 2016-09-11 18:57:49 +0200

connection.rb

module ApplicationCable
  class Connection < ActionCable::Connection::Base
    identified_by :current_user

    def connect
      self.current_user = find_verified_user
      logger.add_tags 'ActionCable', "User #{current_user.id}"
    end

    protected

    def find_verified_user
      if verified_user = User.find_by(id: cookies.signed[:user_id])
        verified_user
      else
        reject_unauthorized_connection
      end
    end
  end
end

我找到了一些我应该使用config.allowed_request_origins的解决方案，但它并没有解决我的问题。我通过添加此方法尝试使用session_helper：

def set_cookie(user)
  the_username = user.username.to_s
  cookies.permanent.signed[:username] = the_username
end

没有什么能解决我的问题。

更新：我看到问题是cookies.signed [：user_id]是零。你有什么建议可以解释这个问题吗？我使用标准URL和端口进行测试（localhost：3000）。

Answer 1

我使用env['warden'].user解决了我的问题。以下是更新方法。

   def find_verified_user
      (current_user = env['warden'].user) ? current_user : reject_unauthorized_connection
   end

Answer 2

在对代码进行任何更改之前，请先停止Rails服务器并进行捆绑安装，然后重新启动。也许该问题将得到解决。

ActionCable - 无法升级到WebSocket

2 个答案: