U
��.eS7 � @ s( d dl mZ d dlZd dlZd dlZd dlZd dlmZmZ d dl m
Z
m Z m Z ddl
mZmZ ddlmZmZmZ dd lmZ dZd
Zd
Zd
Ze
e e d �Zd d
� Ze ede�Z z(d dl Z d dl m Z m Z d dl mZ W n e!k
r� Y nX zd dl m"Z" e"Z#W nJ e!k
�rL zd dl m#Z" e"Z#W n e!k
�rF d Z#Z"Y nX Y nX zd dl m$Z$m%Z%m&Z& W n" e!k
�r� d\Z$Z%dZ&Y nX d�'dddddd d d d d d!d"d#d$g�Z(zd d%l mZ W n& e!k
�r� G d&d'� d'e)�ZY nX d(d)� Z*d*d+� Z+d,d-� Z,d6d.d/�Z-d7d0d1�Z.d2d3� Z/d4d5� Z0dS )8� )�absolute_importN)�hexlify� unhexlify)�md5�sha1�sha256� )�IPV4_RE�BRACELESS_IPV6_ADDRZ_RE� )�SSLError�InsecurePlatformWarning�SNIMissingWarning)�sixF)� �( �@ c C sD t t| �t|� �}tt| �t|��D ]\}}|||A O }q&|dkS )z�
Compare two digests of equal length in constant time.
The digests must be of type str/bytes.
Returns True if the digests match, and False otherwise.
r )�abs�len�zip� bytearray)�a�b�result�l�r� r �A/usr/lib/python3.8/site-packages/pip/_vendor/urllib3/util/ssl_.py� _const_compare_digest_backport s r Zcompare_digest)� wrap_socket�
CERT_REQUIRED)�HAS_SNI)� PROTOCOL_TLS)�PROTOCOL_SSLv23)� OP_NO_SSLv2� OP_NO_SSLv3�OP_NO_COMPRESSION)i i i �:z ECDHE+AESGCMzECDHE+CHACHA20z
DHE+AESGCMz DHE+CHACHA20z ECDH+AESGCMz DH+AESGCMzECDH+AESzDH+AESz
RSA+AESGCMzRSA+AESz!aNULLz!eNULLz!MD5z!DSS)�
SSLContextc @ s8 e Zd Zdd� Zdd� Zd
dd�Zdd � Zdd d �ZdS )r( c C s6 || _ d| _tj| _d | _d| _d | _d | _d | _ d S )NFr )
�protocol�check_hostname�sslZ CERT_NONE� verify_mode�ca_certs�options�certfile�keyfile�ciphers)�selfZprotocol_versionr r r �__init__k s zSSLContext.__init__c C s || _ || _d S �N)r/ r0 )r2 r/ r0 r r r �load_cert_chainv s zSSLContext.load_cert_chainNc C s || _ |d k rtd��d S )Nz-CA directories not supported in older Pythons)r- r )r2 ZcafileZcapathr r r �load_verify_locationsz s z SSLContext.load_verify_locationsc C s
|| _ d S r4 �r1 )r2 Z cipher_suiter r r � set_ciphers� s zSSLContext.set_ciphersFc C s> t �dt� | j| j| j| j| j|d�}t|fd| j i|��S )Na2 A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings)r0 r/ r- � cert_reqs� ssl_version� server_sider1 )
�warnings�warnr
r0 r/ r- r, r) r r1 )r2 Zsocket�server_hostnamer; �kwargsr r r r � s �
�zSSLContext.wrap_socket)NN)NF)�__name__�
__module__� __qualname__r3 r5 r6 r8 r r r r r r( j s
r( c C sn |� dd��� }t|�}t�|�}|s4td�|���t|�� �}|| �� � }t
||�sjtd�|t |����dS )z�
Checks if given fingerprint matches the supplied certificate.
:param cert:
Certificate as bytes object.
:param fingerprint:
Fingerprint as string of hexdigits, can be interspersed by colons.
r' � z"Fingerprint of invalid length: {0}z6Fingerprints did not match. Expected "{0}", got "{1}".N) �replace�lowerr � HASHFUNC_MAP�getr �formatr �encodeZdigest�_const_compare_digestr )ZcertZ fingerprintZ
digest_lengthZhashfuncZfingerprint_bytesZ cert_digestr r r �assert_fingerprint� s
��rK c C s@ | dkr t S t| t�r a� An HTTPS request has been made, but the SNI (Server Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings)r\ r6 �IOErrorr �OSError�errnoZENOENT�hasattrr] �_is_key_file_encryptedr5 � is_ipaddress�IS_SECURETRANSPORTr! r r< r= r )
Zsockr0 r/ r9 r- r> r: r1 Z ssl_contextZ ca_cert_dirZ key_passwordr[ �er r r �ssl_wrap_socket( sB ���� rf c C s2 t jst| t�r| �d�} tt�| �p.t�| ��S )z�Detects whether the hostname given is an IPv4 or IPv6 address.
Also detects IPv6 addresses with Zone IDs.
:param str hostname: Hostname to examine.
:return: True if the hostname is an IP address, False otherwise.
�ascii) r ZPY2rL �bytes�decode�boolr �matchr
)Zhostnamer r r rc � s
rc c C s< t | d��(}|D ] }d|kr W 5 Q R � dS qW 5 Q R X dS )z*Detects if a key file is encrypted or not.r Z ENCRYPTEDTF)�open)Zkey_file�f�liner r r rb � s
rb )NNNN)
NNNNNNNNNN)1Z
__future__r r` r< ZhmacrY Zbinasciir r Zhashlibr r r Zurlr r
�
exceptionsr r
r Zpackagesr r( r! Z IS_PYOPENSSLrd rF r rN rJ r+ r r � ImportErrorr" r# r$ r% r& �joinrX �objectrK rR rS r\ rf rc rb r r r r � s�
��. �
N �
Z