diff options
Diffstat (limited to 'lib/python2.7/site-packages/requests-2.13.0-py2.7.egg/requests/packages/urllib3/contrib/socks.py')
| -rw-r--r-- | lib/python2.7/site-packages/requests-2.13.0-py2.7.egg/requests/packages/urllib3/contrib/socks.py | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/lib/python2.7/site-packages/requests-2.13.0-py2.7.egg/requests/packages/urllib3/contrib/socks.py b/lib/python2.7/site-packages/requests-2.13.0-py2.7.egg/requests/packages/urllib3/contrib/socks.py deleted file mode 100644 index 39e92fde..00000000 --- a/lib/python2.7/site-packages/requests-2.13.0-py2.7.egg/requests/packages/urllib3/contrib/socks.py +++ /dev/null @@ -1,188 +0,0 @@ -# -*- coding: utf-8 -*- -""" -This module contains provisional support for SOCKS proxies from within -urllib3. This module supports SOCKS4 (specifically the SOCKS4A variant) and -SOCKS5. To enable its functionality, either install PySocks or install this -module with the ``socks`` extra. - -The SOCKS implementation supports the full range of urllib3 features. It also -supports the following SOCKS features: - -- SOCKS4 -- SOCKS4a -- SOCKS5 -- Usernames and passwords for the SOCKS proxy - -Known Limitations: - -- Currently PySocks does not support contacting remote websites via literal - IPv6 addresses. Any such connection attempt will fail. You must use a domain - name. -- Currently PySocks does not support IPv6 connections to the SOCKS proxy. Any - such connection attempt will fail. -""" -from __future__ import absolute_import - -try: - import socks -except ImportError: - import warnings - from ..exceptions import DependencyWarning - - warnings.warn(( - 'SOCKS support in urllib3 requires the installation of optional ' - 'dependencies: specifically, PySocks. For more information, see ' - 'https://urllib3.readthedocs.io/en/latest/contrib.html#socks-proxies' - ), - DependencyWarning - ) - raise - -from socket import error as SocketError, timeout as SocketTimeout - -from ..connection import ( - HTTPConnection, HTTPSConnection -) -from ..connectionpool import ( - HTTPConnectionPool, HTTPSConnectionPool -) -from ..exceptions import ConnectTimeoutError, NewConnectionError -from ..poolmanager import PoolManager -from ..util.url import parse_url - -try: - import ssl -except ImportError: - ssl = None - - -class SOCKSConnection(HTTPConnection): - """ - A plain-text HTTP connection that connects via a SOCKS proxy. - """ - def __init__(self, *args, **kwargs): - self._socks_options = kwargs.pop('_socks_options') - super(SOCKSConnection, self).__init__(*args, **kwargs) - - def _new_conn(self): - """ - Establish a new connection via the SOCKS proxy. - """ - extra_kw = {} - if self.source_address: - extra_kw['source_address'] = self.source_address - - if self.socket_options: - extra_kw['socket_options'] = self.socket_options - - try: - conn = socks.create_connection( - (self.host, self.port), - proxy_type=self._socks_options['socks_version'], - proxy_addr=self._socks_options['proxy_host'], - proxy_port=self._socks_options['proxy_port'], - proxy_username=self._socks_options['username'], - proxy_password=self._socks_options['password'], - proxy_rdns=self._socks_options['rdns'], - timeout=self.timeout, - **extra_kw - ) - - except SocketTimeout as e: - raise ConnectTimeoutError( - self, "Connection to %s timed out. (connect timeout=%s)" % - (self.host, self.timeout)) - - except socks.ProxyError as e: - # This is fragile as hell, but it seems to be the only way to raise - # useful errors here. - if e.socket_err: - error = e.socket_err - if isinstance(error, SocketTimeout): - raise ConnectTimeoutError( - self, - "Connection to %s timed out. (connect timeout=%s)" % - (self.host, self.timeout) - ) - else: - raise NewConnectionError( - self, - "Failed to establish a new connection: %s" % error - ) - else: - raise NewConnectionError( - self, - "Failed to establish a new connection: %s" % e - ) - - except SocketError as e: # Defensive: PySocks should catch all these. - raise NewConnectionError( - self, "Failed to establish a new connection: %s" % e) - - return conn - - -# We don't need to duplicate the Verified/Unverified distinction from -# urllib3/connection.py here because the HTTPSConnection will already have been -# correctly set to either the Verified or Unverified form by that module. This -# means the SOCKSHTTPSConnection will automatically be the correct type. -class SOCKSHTTPSConnection(SOCKSConnection, HTTPSConnection): - pass - - -class SOCKSHTTPConnectionPool(HTTPConnectionPool): - ConnectionCls = SOCKSConnection - - -class SOCKSHTTPSConnectionPool(HTTPSConnectionPool): - ConnectionCls = SOCKSHTTPSConnection - - -class SOCKSProxyManager(PoolManager): - """ - A version of the urllib3 ProxyManager that routes connections via the - defined SOCKS proxy. - """ - pool_classes_by_scheme = { - 'http': SOCKSHTTPConnectionPool, - 'https': SOCKSHTTPSConnectionPool, - } - - def __init__(self, proxy_url, username=None, password=None, - num_pools=10, headers=None, **connection_pool_kw): - parsed = parse_url(proxy_url) - - if parsed.scheme == 'socks5': - socks_version = socks.PROXY_TYPE_SOCKS5 - rdns = False - elif parsed.scheme == 'socks5h': - socks_version = socks.PROXY_TYPE_SOCKS5 - rdns = True - elif parsed.scheme == 'socks4': - socks_version = socks.PROXY_TYPE_SOCKS4 - rdns = False - elif parsed.scheme == 'socks4a': - socks_version = socks.PROXY_TYPE_SOCKS4 - rdns = True - else: - raise ValueError( - "Unable to determine SOCKS version from %s" % proxy_url - ) - - self.proxy_url = proxy_url - - socks_options = { - 'socks_version': socks_version, - 'proxy_host': parsed.host, - 'proxy_port': parsed.port, - 'username': username, - 'password': password, - 'rdns': rdns - } - connection_pool_kw['_socks_options'] = socks_options - - super(SOCKSProxyManager, self).__init__( - num_pools, headers, **connection_pool_kw - ) - - self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme |