def make_connection(self):
""" initate a connection if needed or reuse a socket"""
addr = (self.host, self.port)
s = None
# if we defined a pool use it
if self.connections is not None:
s = self.connections.get(addr)
if not s:
# pool is empty or we don't use a pool
if self.uri.scheme == "https":
s = sock.connect(addr, self.timeout, True,
self.key_file, self.cert_file)
else:
s = sock.connect(addr, self.timeout)
return s
def on_request(self, req):
proxy_auth = _get_proxy_auth()
if req.uri.scheme == "https":
proxy = os.environ.get('https_proxy')
if proxy:
if proxy_auth:
proxy_auth = 'Proxy-authorization: %s' % proxy_auth
proxy_connect = 'CONNECT %s HTTP/1.0\r\n' % (req.uri.netloc)
user_agent = "User-Agent: restkit/%s\r\n" % __version__
proxy_pieces = '%s%s%s\r\n' % (proxy_connect, proxy_auth,
user_agent)
proxy_uri = urlparse.urlparse(proxy)
proxy_host, proxy_port = self._host_port(proxy_uri)
# Connect to the proxy server,
# very simple recv and error checking
p_sock = sock.connect((proxy_host, int(proxy_port)) )
sock.send(p_sock, proxy_pieces)
# wait header
p = Parser.parse_response()
headers = []
buf = ""
buf = sock.recv(p_sock, util.CHUNK_SIZE)
i = self.parser.filter_headers(headers, buf)
if i == -1 and buf:
while True:
data = sock.recv(p_sock, util.CHUNK_SIZE)
if not data: break
buf += data
i = self.parser.filter_headers(headers, buf)
if i != -1: break
if p.status_int != 200:
raise ProxyError('Error status=%s' % p.status)
sock._ssl_wrap_socket(p_sock, None, None)
# update socket
req.socket = p_sock
req.host = proxy_host
else:
proxy = os.environ.get('http_proxy')
if proxy:
proxy_uri = urlparse.urlparse(proxy)
proxy_host, proxy_port = self._host_port(proxy_uri)
if proxy_auth:
headers['Proxy-Authorization'] = proxy_auth.strip()
req.headers.append(('Proxy-Authorization',
proxy_auth.strip()))
req.host = proxy_host
req.port = proxy_port