ruby-on-rails – Rails 5 ActionCable错误描述和拒绝连接

发布时间：2020-12-17 01:57:12 所属栏目：百科来源：网络整理

导读：我与使用devise进行身份验证的ActionCable进行了基本聊天. module ApplicationCable class Connection ActionCable::Connection::Base identified_by :current_user def connect self.current_user = find_verified_user logger.add_tags 'ActionCable',curr

我与使用devise进行身份验证的ActionCable进行了基本聊天.

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

    def connect
      self.current_user = find_verified_user
      logger.add_tags 'ActionCable',current_user.email
    end

    protected

    def find_verified_user # this checks whether a user is authenticated with devise
      if verified_user = env['warden'].user
        verified_user
      else
        reject_unauthorized_connection
      end
    end
  end
end

但是当用户打开聊天并拒绝连接时(因为用户已经注销),我需要显示登录屏幕.

问题是在前端我无法找到断开连接的原因.

如何发送带有参数的拒绝,例如“未经授权”？

解决方法

def find_verified_user # this checks whether a user is authenticated with devise
  if verified_user = env['warden'].user
    verified_user
  else
    message = "The user is not found. Connection rejected."

    logger.add_tags 'ActionCable',message # to console

    self.transmit error: message # this is what you wanted

    reject_unauthorized_connection
  end
end

另见：How to terminate subscription to an actioncable channel from server?

（编辑：李大同）

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