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3 T�Seݭ�@spdZddlZddlZddlZddlZddlZddlmZddlm Z mZm ZddlZddlmZmZmZddlmZmZmZddlmZmZmZmZmZmZddlmZmZdd lm Z m!Z!m"Z"m#Z#ydd lm$Z$Wne%k r�YnXddlm&Z&m'Z'm(Z(m)Z)m*Z*ddlm+Z+dd lm,Z,ej-de.dd�ed�ej-de.dd�ed�ej-de.dd�ed�ej-de.dd�ed�ej-de.dd�ed�ej-de.dd�ed�e/j0Z1e/_1dd�e/j2j3�D�Z4e5e/dd�Z6ej7dk�r�dd lm8Z8m9Z9dd!l:m:Z:m;Z;mZ>m?Z?ddl@Z@ddlAZAddlBZBeCZDejE�r>d#gZFngZFe+ZGGd$d%�d%eH�ZIdRd'd(�ZJd)d*�ZKd+d,�ZLed-d.�ZMd/d0�ZNGd1d2�d2ed2d3��ZOGd4d5�d5eOe �ZPGd6d7�d7e�ZQePjRfdddd8�d9d:�ZSe0feTd;ePjRdddddd<�d=d>�ZUeSZVeUZWGd?d@�d@�ZXGdAdB�dBe:�ZYddd;eTe0ddCdCdf dDdE�ZZdFdG�Z[dHZ\dIZ]dJdK�Z^dLdM�Z_e0dfdNdO�Z`dPdQ�ZadS)Sa� This module provides some more Pythonic support for SSL. Object types: SSLSocket -- subtype of socket.socket which does SSL over the socket Exceptions: SSLError -- exception raised for I/O errors Functions: cert_time_to_seconds -- convert time string used for certificate notBefore and notAfter functions to integer seconds past the Epoch (the time values returned from time.time()) fetch_server_certificate (HOST, PORT) -- fetch the certificate provided by the server running on HOST at port PORT. No validation of the certificate is performed. Integer constants: SSL_ERROR_ZERO_RETURN SSL_ERROR_WANT_READ SSL_ERROR_WANT_WRITE SSL_ERROR_WANT_X509_LOOKUP SSL_ERROR_SYSCALL SSL_ERROR_SSL SSL_ERROR_WANT_CONNECT SSL_ERROR_EOF SSL_ERROR_INVALID_ERROR_CODE The following group define certificate requirements that one side is allowing/requiring from the other side: CERT_NONE - no certificates from the other side are required (or will be looked at if provided) CERT_OPTIONAL - certificates are not required, but if provided will be validated, and if validation fails, the connection will also fail CERT_REQUIRED - certificates are required, and will be validated, and if validation fails, the connection will also fail The following constants identify various SSL protocol variants: PROTOCOL_SSLv2 PROTOCOL_SSLv3 PROTOCOL_SSLv23 PROTOCOL_TLS PROTOCOL_TLS_CLIENT PROTOCOL_TLS_SERVER PROTOCOL_TLSv1 PROTOCOL_TLSv1_1 PROTOCOL_TLSv1_2 The following constants identify various SSL alert message descriptions as per http://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-6 ALERT_DESCRIPTION_CLOSE_NOTIFY ALERT_DESCRIPTION_UNEXPECTED_MESSAGE ALERT_DESCRIPTION_BAD_RECORD_MAC ALERT_DESCRIPTION_RECORD_OVERFLOW ALERT_DESCRIPTION_DECOMPRESSION_FAILURE ALERT_DESCRIPTION_HANDSHAKE_FAILURE ALERT_DESCRIPTION_BAD_CERTIFICATE ALERT_DESCRIPTION_UNSUPPORTED_CERTIFICATE ALERT_DESCRIPTION_CERTIFICATE_REVOKED ALERT_DESCRIPTION_CERTIFICATE_EXPIRED ALERT_DESCRIPTION_CERTIFICATE_UNKNOWN ALERT_DESCRIPTION_ILLEGAL_PARAMETER ALERT_DESCRIPTION_UNKNOWN_CA ALERT_DESCRIPTION_ACCESS_DENIED ALERT_DESCRIPTION_DECODE_ERROR ALERT_DESCRIPTION_DECRYPT_ERROR ALERT_DESCRIPTION_PROTOCOL_VERSION ALERT_DESCRIPTION_INSUFFICIENT_SECURITY ALERT_DESCRIPTION_INTERNAL_ERROR ALERT_DESCRIPTION_USER_CANCELLED ALERT_DESCRIPTION_NO_RENEGOTIATION ALERT_DESCRIPTION_UNSUPPORTED_EXTENSION ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE ALERT_DESCRIPTION_UNRECOGNIZED_NAME ALERT_DESCRIPTION_BAD_CERTIFICATE_STATUS_RESPONSE ALERT_DESCRIPTION_BAD_CERTIFICATE_HASH_VALUE ALERT_DESCRIPTION_UNKNOWN_PSK_IDENTITY �N)� namedtuple)�Enum�IntEnum�IntFlag)�OPENSSL_VERSION_NUMBER�OPENSSL_VERSION_INFO�OPENSSL_VERSION)�_SSLContext� MemoryBIO� SSLSession)�SSLError�SSLZeroReturnError�SSLWantReadError�SSLWantWriteError�SSLSyscallError�SSLEOFError)�txt2obj�nid2obj)�RAND_status�RAND_add� RAND_bytes�RAND_pseudo_bytes)�RAND_egd)�HAS_SNI�HAS_ECDH�HAS_NPN�HAS_ALPN�HAS_TLSv1_3)�_DEFAULT_CIPHERS)�_OPENSSL_API_VERSION� _SSLMethodcCs|jd�o|dkS)NZ PROTOCOL_�PROTOCOL_SSLv23)� startswith)�name�r$�/usr/lib64/python3.6/ssl.py�}sr&)�source�OptionscCs |jd�S)NZOP_)r")r#r$r$r%r&�sZAlertDescriptioncCs |jd�S)NZALERT_DESCRIPTION_)r")r#r$r$r%r&�sZSSLErrorNumbercCs |jd�S)NZ SSL_ERROR_)r")r#r$r$r%r&�s�VerifyFlagscCs |jd�S)NZVERIFY_)r")r#r$r$r%r&�s� VerifyModecCs |jd�S)NZCERT_)r")r#r$r$r%r&�scCsi|]\}}||�qSr$r$)�.0r#�valuer$r$r%� �sr-ZPROTOCOL_SSLv2�win32)�enum_certificates� enum_crls)�socket�AF_INET�SOCK_STREAM�create_connection)� SOL_SOCKET�SO_TYPEz tls-uniquec@seZdZdS)�CertificateErrorN)�__name__� __module__�__qualname__r$r$r$r%r7�sr7�c Cs�g}|sdS|jd�^}}|jd�}||kr|jd�sx|jd�r�|jtj|��n|jtj|�j dd��x|D]}|jtj|��q�Wtj d d j|�dtj�}|j |�S)zhMatching according to RFC 6125, section 6.4.3 http://tools.ietf.org/html/rfc6125#section-6.4.3 F�.�*z,too many wildcards in certificate DNS name: z[^.]+zxn--z\*z[^.]*z\Az\.z\Z)�split�countr7�repr�lower�appendr"�re�escape�replace�compile�join� IGNORECASE�match) Zdn�hostnameZ max_wildcardsZpatsZleftmostZ remainderZ wildcardsZfragZpatr$r$r%�_dnsname_match�s& rKcCstj|j��}||kS)z�Exact matching of IP addresses. 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