U "g@@sXdZddlmZddlZddlmZddlmZ ddl m Z zddl m Z Wn$ek rpGdd d eZ YnXdd lmZmZdd lmZzdd lmZWn$ek rdZd dlmZYnXddlZddlZddlZddlZd dlmZddgZdZ ej!ej"j#ej$ej"j%iZ&e'edrZ?ddZ@ddZAddZBd d!ZCd"d#ZDGd$d%d%eEZFer2d-d'd(ZGneZGeGeF_GGd)d*d*eEZHd+d,ZIdS).ab SSL with SNI_-support for Python 2. Follow these instructions if you would like to verify SSL certificates in Python 2. Note, the default libraries do *not* do certificate checking; you need to do additional work to validate certificates yourself. This needs the following packages installed: * pyOpenSSL (tested with 16.0.0) * cryptography (minimum 1.3.4, from pyopenssl) * idna (minimum 2.0, from cryptography) However, pyopenssl depends on cryptography, which depends on idna, so while we use all three directly here we end up having relatively few packages required. You can install them with the following command: pip install pyopenssl cryptography idna To activate certificate checking, call :func:`~urllib3.contrib.pyopenssl.inject_into_urllib3` from your Python code before you begin making HTTP requests. This can be done in a ``sitecustomize`` module, or at any other time before your application begins using ``urllib3``, like this:: try: import urllib3.contrib.pyopenssl urllib3.contrib.pyopenssl.inject_into_urllib3() except ImportError: pass Now you can use :mod:`urllib3` as you normally would, and it will support SNI when the required modules are installed. Activating this module also has the positive side effect of disabling SSL/TLS compression in Python 2 (see `CRIME attack`_). If you want to configure the default list of supported cipher suites, you can set the ``urllib3.contrib.pyopenssl.DEFAULT_SSL_CIPHER_LIST`` variable. .. _sni: https://en.wikipedia.org/wiki/Server_Name_Indication .. _crime attack: https://en.wikipedia.org/wiki/CRIME_(security_exploit) )absolute_importN)x509)backend) _Certificate)UnsupportedExtensionc@s eZdZdS)rN)__name__ __module__ __qualname__r r ;/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.pyr7sr)timeouterror)BytesIO) _fileobject)backport_makefile)utilinject_into_urllib3extract_from_urllib3TPROTOCOL_SSLv3 SSLv3_METHODPROTOCOL_TLSv1_1TLSv1_1_METHODPROTOCOL_TLSv1_2TLSv1_2_METHODccs|]\}}||fVqdSNr ).0kvr r r gsri@cCs4ttt_ttj_tt_ttj_dt_dtj_dS)z7Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.TN)_validate_dependencies_metPyOpenSSLContextr SSLContextssl_HAS_SNI IS_PYOPENSSLr r r r rsscCs.tt_ttj_tt_ttj_dt_dtj_dS)z4Undo monkey-patching by :func:`inject_into_urllib3`.FN)orig_util_SSLContextrr"r#orig_util_HAS_SNIr$r%r r r r rs cCsRddlm}t|dddkr$tdddlm}|}t|dddkrNtddS) z{ Verifies that PyOpenSSL's package-level dependencies have been met. 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