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pyopenssl.cpython-37.pyc
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B �B�h�J � @ sP U d Z ddlmZ ddlZddlmZ yddlmZ W n$ e k rZ G dd� de �ZY nX ddl Z ddl Z ddl Z ddlmZ dd lmZ dd lmZ d d lmZ e jr�dd lmZ ddgZejjejj ejj ejj e j ejj iZ e!e d��r e!ejd��r ejj"e e j#< e!e d��r4e!ejd��r4ejj$e e j%< e j&ejj'e j(ejj)e j*ejj)ejj+ iZ,dd� e,�-� D �Z.e/ejdd�e/ejdd�B Z0de1d< e/ejdd�Z2de1d< e/ejd d�Z3de1d < e/ejd d�Z4de1d < e/ejd d�Z5de1d!< e j6j7e0e j6j8e0e j6j9e0e2B e j6j:e0e2B e3B e j6j;e0e2B e3B e4B e j6j<e0e2B e3B e4B iZ=d"e1d#< e j6j7e0e2B e3B e4B e5B e j6j8e0e3B e4B e5B e j6j9e0e4B e5B e j6j:e0e5B e j6j;e0e j6j<e0iZ>d"e1d$< d%Z?ejj@ZAe �BeC�ZDd&d'�d(d�ZEd&d'�d)d�ZFd&d'�d*d+�ZGd,d-d.�d/d0�ZHd1d2d3�d4d5�ZIG d6d7� d7�ZJejKeJ_KG d8d9� d9�ZLd:d1dddd;d<�d=d>�ZMdS )?a Module for using pyOpenSSL as a TLS backend. This module was relevant before the standard library ``ssl`` module supported SNI, but now that we've dropped support for Python 2.7 all relevant Python versions support SNI so **this module is no longer recommended**. 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: .. code-block:: bash $ python -m 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: .. code-block:: python try: import urllib3.contrib.pyopenssl urllib3.contrib.pyopenssl.inject_into_urllib3() except ImportError: pass .. _pyopenssl: https://www.pyopenssl.org .. _cryptography: https://cryptography.io .. _idna: https://github.com/kjd/idna � )� annotationsN)�x509)�UnsupportedExtensionc @ s e Zd ZdS )r N)�__name__� __module__� __qualname__� r r �J/opt/alt/python37/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.pyr 2 s r )�BytesIO)�socket)�timeout� )�util)�X509�inject_into_urllib3�extract_from_urllib3�PROTOCOL_TLSv1_1�TLSv1_1_METHOD�PROTOCOL_TLSv1_2�TLSv1_2_METHODc C s i | ]\}}||�qS r r )�.0�k�vr r r � <dictcomp>Y s r � OP_NO_SSLv2� OP_NO_SSLv3�int�_OP_NO_SSLv2_OR_SSLv3� OP_NO_TLSv1� _OP_NO_TLSv1� OP_NO_TLSv1_1�_OP_NO_TLSv1_1� OP_NO_TLSv1_2�_OP_NO_TLSv1_2� OP_NO_TLSv1_3�_OP_NO_TLSv1_3zdict[int, int]� _openssl_to_ssl_minimum_version� _openssl_to_ssl_maximum_versioni @ �None)�returnc C s& t � tt_ttj_dt_dtj_dS )z7Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.TN)�_validate_dependencies_met�PyOpenSSLContextr � SSLContext�ssl_� IS_PYOPENSSLr r r r r � s c C s t t_t tj_dt_dtj_dS )z4Undo monkey-patching by :func:`inject_into_urllib3`.FN)�orig_util_SSLContextr r, r- r. r r r r r � s c C sR ddl m} t| dd�dkr$td��ddlm} |� }t|dd�dkrNtd��dS ) z{ Verifies that PyOpenSSL's package-level dependencies have been met. 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