def run(self):
try:
r = self.flow.request
server = ServerConnection(self.config, r.scheme, r.host, r.port,
r.host)
server.connect()
server.send(r)
httpversion, code, msg, headers, content = http.read_response(
server.rfile, r.method, self.config.body_size_limit)
response = flow.Response(self.flow.request, httpversion, code, msg,
headers, content, server.cert)
self.channel.ask(response)
except (ProxyError, http.HttpError, tcp.NetLibError), v:
err = flow.Error(self.flow.request, str(v))
self.channel.ask(err)
httpversion, code, msg, headers, content = http.read_response(
sc.rfile, request.method,
self.config.body_size_limit)
except http.HttpErrorConnClosed, v:
self.del_server_connection()
if sc.requestcount > 1:
continue
else:
raise
except http.HttpError, v:
raise ProxyError(502, "Invalid server response.")
else:
break
response = flow.Response(request, httpversion, code, msg,
headers, content, sc.cert,
sc.rfile.first_byte_timestamp,
utils.timestamp())
response_reply = self.channel.ask(response)
# Not replying to the server invalidates the server
# connection, so we terminate.
if response_reply == KILL:
sc.terminate()
if response_reply == KILL:
return
else:
response = response_reply
self.send_response(response)
if request and http.request_connection_close(
request.httpversion, request.headers):
return
def handle_request(self, cc):
try:
request, err = None, None
request = self.read_request(cc)
if request is None:
return
cc.requestcount += 1
app = self.server.apps.get(request)
if app:
err = app.serve(request, self.wfile)
if err:
self.log(cc, "Error in wsgi app.", err.split("\n"))
return
else:
request = request._send(self.mqueue)
if request is None:
return
if isinstance(request, flow.Response):
response = request
request = False
response = response._send(self.mqueue)
else:
if self.config.reverse_proxy:
scheme, host, port = self.config.reverse_proxy
else:
scheme, host, port = request.scheme, request.host, request.port
self.server_connect(scheme, host, port)
self.server_conn.send(request)
httpversion, code, msg, headers, content = http.read_response(
self.server_conn.rfile,
request.method,
self.config.body_size_limit
)
response = flow.Response(
request, httpversion, code, msg, headers, content, self.server_conn.cert
)
response = response._send(self.mqueue)
if response is None:
self.server_conn.terminate()
if response is None:
return
self.send_response(response)
if request and http.request_connection_close(request.httpversion, request.headers):
return
# We could keep the client connection when the server
# connection needs to go away. However, we want to mimic
# behaviour as closely as possible to the client, so we
# disconnect.
if http.response_connection_close(response.httpversion, response.headers):
return
except (IOError, ProxyError, http.HttpError, tcp.NetLibDisconnect), e:
if hasattr(e, "code"):
cc.error = "%s: %s"%(e.code, e.msg)
else:
cc.error = str(e)
if request:
err = flow.Error(request, cc.error)
err._send(self.mqueue)
self.log(
cc, cc.error,
["url: %s"%request.get_url()]
)
else:
self.log(cc, cc.error)
if isinstance(e, ProxyError):
self.send_error(e.code, e.msg)