[英]Python twisted proxy to send 2 requests
我如何處理此代碼,以便能夠發送2個單獨的請求。 請求將按以下順序進行:
請求1:
HEAD http://google.com
Host: google.com
...等待來自Google服務器的回復...
Request2:
GET http://yahoo.com HTTP/1.1
User-Agent: mozilla
Accept: */*
從瀏覽器發送的第二個請求,而所有請求的第一個請求是靜態的...
我要修改的代碼是:
from twisted.web import proxy, http
class SnifferProxy(proxy.Proxy):
def allContentReceived(self):
print "Received data..."
print "method = %s" % self._command
print "action = %s" % self._path
print "ended content manipulation\n\n"
return proxy.Proxy.allContentReceived(self)
class ProxyFactory(http.HTTPFactory):
protocol = SnifferProxy
if __name__ == "__main__":
from twisted.internet import reactor
reactor.listenTCP(8080, ProxyFactory())
reactor.run()
扭曲的代理將連接到另一個外部代理。不勝感激。
我認為您可以通過將對Proxy.allContentReceived
方法的調用添加為使用Agent的HEAD請求的回調來獲得所需的內容。
from twisted.internet import reactor from twisted.web import proxy, http
from twisted.web.client import Agent
from twisted.web.http_headers import Headers
agent = Agent(reactor)
class SnifferProxy(proxy.Proxy):
def allContentReceived(self):
def cbHead(result):
print "got response for HEAD"
def doProxiedRequest(result):
proxy.Proxy.allContentReceived(self)
# I assumed self._path, but it looks OP wants to do the
# HEAD request to the same path always
PATH = "http://foo.bar"
d = agent.request(
'HEAD', PATH, Headers({'User-Agent': ['twisted']}), None)
d.addCallback(cbHead)
d.addCallback(doProxiedRequest)
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