def loop(self):
try:
while True:
self.close()
self.spdy_client = SpdyClient(self.proxy_ip, self.proxy_port, self.requested_spdy_version)
self.died = False
try:
self.spdy_client.loop()
except:
LOGGER.exception('spdy client loop failed')
finally:
LOGGER.info('spdy client loop quit')
self.died = True
except:
LOGGER.exception('spdy connect loop failed')
class SpdyConnectProxy(Proxy):
def __init__(self, proxy_ip, proxy_port, requested_spdy_version='auto',
username=None, password=None, is_public=False):
super(SpdyConnectProxy, self).__init__()
self.proxy_ip = socket.gethostbyname(proxy_ip)
self.proxy_port = proxy_port
self.username = username
self.password = password
self.spdy_client = None
self.requested_spdy_version = requested_spdy_version
if is_public:
self.flags.add('PUBLIC')
self.died = True
self.loop_greenlet = None
def connect(self):
try:
try:
if self.loop_greenlet:
self.loop_greenlet.kill()
except:
pass
self.loop_greenlet = gevent.spawn(self.loop)
except:
LOGGER.exception('failed to connect spdy-connect proxy: %s' % self)
self.died = True
def loop(self):
try:
while True:
self.close()
self.spdy_client = SpdyClient(self.proxy_ip, self.proxy_port, self.requested_spdy_version)
self.died = False
try:
self.spdy_client.loop()
except:
LOGGER.exception('spdy client loop failed')
finally:
LOGGER.info('spdy client loop quit')
self.died = True
except:
LOGGER.exception('spdy connect loop failed')
def close(self):
if self.spdy_client:
self.spdy_client.close()
self.spdy_client = None
def do_forward(self, client):
if SPDY_3 == self.spdy_client.spdy_version:
headers = {
':method': 'CONNECT',
':scheme': 'https',
':path': '%s:%s' % (client.dst_ip, client.dst_port),
':version': 'HTTP/1.1',
':host': '%s:%s' % (client.dst_ip, client.dst_port)
}
else:
headers = {
'method': 'CONNECT',
'scheme': 'https',
'url': '%s:%s' % (client.dst_ip, client.dst_port),
'version': 'HTTP/1.1',
'host': '%s:%s' % (client.dst_ip, client.dst_port)
}
if self.username and self.password:
auth = base64.b64encode('%s:%s' % (self.username, self.password)).strip()
headers['proxy-authorization'] = 'Basic %s' % auth
client.payload = client.peeked_data
stream_id = self.spdy_client.open_stream(headers, client)
self.spdy_client.poll_stream(stream_id, self.on_frame)
def on_frame(self, stream, frame):
if isinstance(frame, spdy.frames.SynReply):
self.on_syn_reply_frame(stream, frame)
return
else:
LOGGER.warn('!!! [%s] unknown frame: %s %s !!!'
% (repr(stream.client), frame, getattr(frame, 'frame_type')))
def on_syn_reply_frame(self, stream, frame):
client = stream.client
if LOGGER.isEnabledFor(logging.DEBUG):
LOGGER.debug('[%s] syn reply: %s' % (repr(client), frame.headers))
headers = dict(frame.headers)
if SPDY_3 == self.spdy_client.spdy_version:
status = headers.pop(':status')
else:
status = headers.pop('status')
if not status.startswith('200'):
LOGGER.error('[%s] proxy rejected CONNECT: %s' % (repr(client), status))
self.died = True
self.loop_greenlet.kill()
@classmethod
def refresh(cls, proxies, create_udp_socket, create_tcp_socket):
for proxy in proxies:
proxy.connect()
return True
def is_protocol_supported(self, protocol):
return protocol == 'HTTPS'
def __repr__(self):
return 'SpdyConnectProxy[%s:%s]' % (self.proxy_ip, self.proxy_port)
class SpdyRelayProxy(Proxy):
def __init__(self, proxy_ip, proxy_port, requested_spdy_version='auto',
username=None, password=None, is_public=False):
super(SpdyRelayProxy, self).__init__()
self.proxy_ip = socket.gethostbyname(proxy_ip)
self.proxy_port = proxy_port
self.username = username
self.password = password
self.spdy_client = None
self.requested_spdy_version = requested_spdy_version
if is_public:
self.flags.add('PUBLIC')
self.died = True
self.loop_greenlet = None
def connect(self):
try:
try:
if self.loop_greenlet:
self.loop_greenlet.kill()
except:
pass
self.loop_greenlet = gevent.spawn(self.loop)
except:
LOGGER.exception('failed to connect spdy-relay proxy: %s' % self)
self.died = True
def loop(self):
try:
while True:
self.close()
self.spdy_client = SpdyClient(self.proxy_ip, self.proxy_port, self.requested_spdy_version)
self.died = False
try:
self.spdy_client.loop()
except:
LOGGER.exception('spdy client loop failed')
finally:
LOGGER.info('spdy client loop quit')
self.died = True
except:
LOGGER.exception('spdy relay loop failed')
def close(self):
if self.spdy_client:
self.spdy_client.close()
self.spdy_client = None
def do_forward(self, client):
recv_and_parse_request(client)
if SPDY_3 == self.spdy_client.spdy_version:
headers = {
':method': client.method,
':scheme': 'http',
':path': client.path,
':version': 'HTTP/1.1',
':host': client.host
}
else:
headers = {
'method': client.method,
'scheme': 'http',
'url': client.url,
'version': 'HTTP/1.1',
'host': client.host
}
if self.username and self.password:
auth = base64.b64encode('%s:%s' % (self.username, self.password)).strip()
headers['proxy-authorization'] = 'Basic %s' % auth
for k, v in client.headers.items():
headers[k.lower()] = v
headers['connection'] = 'close'
stream_id = self.spdy_client.open_stream(headers, client)
stream = self.spdy_client.streams[stream_id]
stream.request_content_length = int(headers.get('content-length', 0))
self.spdy_client.poll_stream(stream_id, self.on_frame)
def on_frame(self, stream, frame):
if isinstance(frame, spdy.frames.SynReply):
stream.response_content_length = self.on_syn_reply_frame(stream, frame)
else:
LOGGER.warn('!!! [%s] unknown frame: %s %s !!!'
% (repr(stream.client), frame, getattr(frame, 'frame_type')))
def on_syn_reply_frame(self, stream, frame):
client = stream.client
if LOGGER.isEnabledFor(logging.DEBUG):
LOGGER.debug('[%s] syn reply: %s' % (repr(client), frame.headers))
headers = dict(frame.headers)
if SPDY_3 == self.spdy_client.spdy_version:
http_version = headers.pop(':version')
status = headers.pop(':status')
else:
http_version = headers.pop('version')
status = headers.pop('status')
client.forward_started = True
client.downstream_sock.sendall('%s %s\r\n' % (http_version, status))
for k, v in headers.items():
client.downstream_sock.sendall('%s: %s\r\n' % (k, v))
client.downstream_sock.sendall('\r\n')
if status.startswith('304'):
return 0
else:
return int(headers.pop('content-length', sys.maxint))
@classmethod
def refresh(cls, proxies, create_udp_socket, create_tcp_socket):
for proxy in proxies:
proxy.connect()
return True
def is_protocol_supported(self, protocol):
return protocol == 'HTTP'
def __repr__(self):
return 'SpdyRelayProxy[%s:%s]' % (self.proxy_ip, self.proxy_port)
