RAILS Faye - 令牌认证(RAILS Faye - token authentication)

 我构建了与各种平台客户端交互的Rails API。 在服务器端，实现了faye服务器，例如： 
 
Faye::RackAdapter.new(:mount => '/faye', :timeout => 25)
 
 在服务器端，我想通过令牌添加autentication。 我使用faye扩展： 
 
class ServerAuth
  def incoming(message, callback)
    # Let non-subscribe messages throughs
    unless message['channel'] == '/meta/subscribe'
      return callback.call(message)
    end
    # Get subscribed channel and auth token
    msg_token = message['ext'] && message['ext']['authToken']
    # Add an error if the tokens don't match
    if msg_token != '12345'
      message['error'] = 'Invalid subscription auth token'
    end
    # Call the server back now we're done
    callback.call(message)
  end
end
 
 实际上它不像我那样工作。 当客户端传递正确的令牌时，一切似乎都可以，但是当他传递无效令牌时，即使他从服务器收到错误消息，他仍然能够推送消息。 我应该如何阻止客户端不会收到它们的消息（显然在服务器端）。 

I build Rails API that interacts with various platform clients. On the server side there is implemented faye server something like:
 
Faye::RackAdapter.new(:mount => '/faye', :timeout => 25)
 
On the server side I would like to add autentication via token. I use faye extension:
 
class ServerAuth
  def incoming(message, callback)
    # Let non-subscribe messages throughs
    unless message['channel'] == '/meta/subscribe'
      return callback.call(message)
    end
    # Get subscribed channel and auth token
    msg_token = message['ext'] && message['ext']['authToken']
    # Add an error if the tokens don't match
    if msg_token != '12345'
      message['error'] = 'Invalid subscription auth token'
    end
    # Call the server back now we're done
    callback.call(message)
  end
end
 
Actually It doesn't work as I except. When client passes correct token everything seems be all right but when he passes invalid token then he still is able to push messages even that he gets back error message from server. How should I block such messages that clients won't recive them (on the server side obviously).

原文：https://stackoverflow.com/questions/32745883