使用twisted和sockjs获取websocket请求的标题值

Question

我有一个sockjs服务器，它位于haproxy之后。现在我需要一个客户端IP地址，但使用self.transport.getPeer()我得到我的haproxy的IP。 Haproxy使用原始客户端的ip为请求添加X-Forward-For标头。

如何获取已在我的协议中发送到服务器的原始http请求？

class MyProtocol(LineReceiver):
    def connectionMade(self):
        # this next line only gives me the ip of my proxy
        ip = self.transport.getPeer()

class MyFactory(protocol.ServerFactory):
    protocol = MyProtocol

my_factory = MyFactory()
sockjs_factory = SockJSMultiFactory()
sockjs_factory.addFactory(my_factory, 'echo')

sockjs_service = internet.TCPServer(10000, sockjs_factory)

application = service.Application("frog32")
sockjs_service.setServiceParent(application)