async def _wrap_create_socks_connection(self, *args, req, **kwargs):
try:
return await create_connection(*args, **kwargs)
except certificate_errors as exc:
raise aiohttp.ClientConnectorCertificateError(
req.connection_key, exc) from exc
except ssl_errors as exc:
raise aiohttp.ClientConnectorSSLError(req.connection_key,
exc) from exc
except (OSError, SocksConnectionError) as exc:
raise aiohttp.ClientProxyConnectionError(req.connection_key,
exc) from exc
async def _create_socks_connection(self, req):
if req.ssl:
sslcontext = self.ssl_context
else:
sslcontext = None
if not self._remote_resolve:
dst_hosts = list(await self._resolve_host(req.host, req.port))
dst = dst_hosts[0]['host'], dst_hosts[0]['port']
else:
dst = req.host, req.port
proxy_hosts = await self._resolve_host(req.proxy.host, req.proxy.port)
exc = None
for hinfo in proxy_hosts:
if req.proxy.scheme == 'socks4':
proxy = Socks4Addr(hinfo['host'], hinfo['port'])
else:
proxy = Socks5Addr(hinfo['host'], hinfo['port'])
try:
transp, proto = await create_connection(
self._factory,
proxy,
req.proxy_auth,
dst,
loop=self._loop,
remote_resolve=self._remote_resolve,
ssl=sslcontext,
family=hinfo['family'],
proto=hinfo['proto'],
flags=hinfo['flags'],
local_addr=self._local_addr,
server_hostname=req.host if sslcontext else None)
self._validate_ssl_fingerprint(transp, req.host, req.port)
return transp, proto
except (OSError, SocksError, SocksConnectionError) as e:
exc = e
else:
if isinstance(exc, SocksConnectionError):
raise aiohttp.ClientProxyConnectionError(*exc.args)
if isinstance(exc, SocksError):
raise exc
else:
raise aiohttp.ClientOSError(
exc.errno, 'Can not connect to %s:%s [%s]' %
(req.host, req.port, exc.strerror)) from exc