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diff --git a/urllib3/connection.py b/urllib3/connection.py
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+# urllib3/connection.py
+# Copyright 2008-2013 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
+#
+# This module is part of urllib3 and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+import socket
+from socket import timeout as SocketTimeout
+
+try: # Python 3
+ from http.client import HTTPConnection, HTTPException
+except ImportError:
+ from httplib import HTTPConnection, HTTPException
+
+class DummyConnection(object):
+ "Used to detect a failed ConnectionCls import."
+ pass
+
+try: # Compiled with SSL?
+ ssl = None
+ HTTPSConnection = DummyConnection
+
+ class BaseSSLError(BaseException):
+ pass
+
+ try: # Python 3
+ from http.client import HTTPSConnection
+ except ImportError:
+ from httplib import HTTPSConnection
+
+ import ssl
+ BaseSSLError = ssl.SSLError
+
+except (ImportError, AttributeError): # Platform-specific: No SSL.
+ pass
+
+from .exceptions import (
+ ConnectTimeoutError,
+)
+from .packages.ssl_match_hostname import match_hostname
+from .util import (
+ assert_fingerprint,
+ resolve_cert_reqs,
+ resolve_ssl_version,
+ ssl_wrap_socket,
+)
+
+class VerifiedHTTPSConnection(HTTPSConnection):
+ """
+ Based on httplib.HTTPSConnection but wraps the socket with
+ SSL certification.
+ """
+ cert_reqs = None
+ ca_certs = None
+ ssl_version = None
+
+ def set_cert(self, key_file=None, cert_file=None,
+ cert_reqs=None, ca_certs=None,
+ assert_hostname=None, assert_fingerprint=None):
+
+ self.key_file = key_file
+ self.cert_file = cert_file
+ self.cert_reqs = cert_reqs
+ self.ca_certs = ca_certs
+ self.assert_hostname = assert_hostname
+ self.assert_fingerprint = assert_fingerprint
+
+ def connect(self):
+ # Add certificate verification
+ try:
+ sock = socket.create_connection(
+ address=(self.host, self.port),
+ timeout=self.timeout,
+ )
+ except SocketTimeout:
+ raise ConnectTimeoutError(
+ self, "Connection to %s timed out. (connect timeout=%s)" %
+ (self.host, self.timeout))
+
+ resolved_cert_reqs = resolve_cert_reqs(self.cert_reqs)
+ resolved_ssl_version = resolve_ssl_version(self.ssl_version)
+
+ if self._tunnel_host:
+ self.sock = sock
+ # Calls self._set_hostport(), so self.host is
+ # self._tunnel_host below.
+ self._tunnel()
+
+ # Wrap socket using verification with the root certs in
+ # trusted_root_certs
+ self.sock = ssl_wrap_socket(sock, self.key_file, self.cert_file,
+ cert_reqs=resolved_cert_reqs,
+ ca_certs=self.ca_certs,
+ server_hostname=self.host,
+ ssl_version=resolved_ssl_version)
+
+ if resolved_cert_reqs != ssl.CERT_NONE:
+ if self.assert_fingerprint:
+ assert_fingerprint(self.sock.getpeercert(binary_form=True),
+ self.assert_fingerprint)
+ elif self.assert_hostname is not False:
+ match_hostname(self.sock.getpeercert(),
+ self.assert_hostname or self.host)
+
+
+if ssl:
+ HTTPSConnection = VerifiedHTTPSConnection