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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html# For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/PyCQA/astroid/blob/main/CONTRIBUTORS.txt
 
 """Astroid hooks for the ssl library."""
 
 from astroid import parse
 from astroid.brain.helpers import register_module_extender
 from astroid.const import PY38_PLUS, PY310_PLUS
 from astroid.manager import AstroidManager
 
 
 def _verifyflags_enum() -> str:
 enum = """
 class VerifyFlags(_IntFlag):
 VERIFY_DEFAULT = 0
 VERIFY_CRL_CHECK_LEAF = 1
 VERIFY_CRL_CHECK_CHAIN = 2
 VERIFY_X509_STRICT = 3
 VERIFY_X509_TRUSTED_FIRST = 4"""
 if PY310_PLUS:
 enum += """
 VERIFY_ALLOW_PROXY_CERTS = 5
 VERIFY_X509_PARTIAL_CHAIN = 6
 """
 return enum
 
 
 def _options_enum() -> str:
 enum = """
 class Options(_IntFlag):
 OP_ALL = 1
 OP_NO_SSLv2 = 2
 OP_NO_SSLv3 = 3
 OP_NO_TLSv1 = 4
 OP_NO_TLSv1_1 = 5
 OP_NO_TLSv1_2 = 6
 OP_NO_TLSv1_3 = 7
 OP_CIPHER_SERVER_PREFERENCE = 8
 OP_SINGLE_DH_USE = 9
 OP_SINGLE_ECDH_USE = 10
 OP_NO_COMPRESSION = 11
 OP_NO_TICKET = 12
 OP_NO_RENEGOTIATION = 13"""
 if PY38_PLUS:
 enum += """
 OP_ENABLE_MIDDLEBOX_COMPAT = 14"""
 return enum
 
 
 def ssl_transform():
 return parse(
 """
 # Import necessary for conversion of objects defined in C into enums
 from enum import IntEnum as _IntEnum, IntFlag as _IntFlag
 
 from _ssl import OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_INFO, OPENSSL_VERSION
 from _ssl import _SSLContext, MemoryBIO
 from _ssl import (
 SSLError, SSLZeroReturnError, SSLWantReadError, SSLWantWriteError,
 SSLSyscallError, SSLEOFError,
 )
 from _ssl import CERT_NONE, CERT_OPTIONAL, CERT_REQUIRED
 from _ssl import txt2obj as _txt2obj, nid2obj as _nid2obj
 from _ssl import RAND_status, RAND_add, RAND_bytes, RAND_pseudo_bytes
 try:
 from _ssl import RAND_egd
 except ImportError:
 # LibreSSL does not provide RAND_egd
 pass
 from _ssl import (OP_ALL, OP_CIPHER_SERVER_PREFERENCE,
 OP_NO_COMPRESSION, OP_NO_SSLv2, OP_NO_SSLv3,
 OP_NO_TLSv1, OP_NO_TLSv1_1, OP_NO_TLSv1_2,
 OP_SINGLE_DH_USE, OP_SINGLE_ECDH_USE)
 
 from _ssl import (ALERT_DESCRIPTION_ACCESS_DENIED, ALERT_DESCRIPTION_BAD_CERTIFICATE,
 ALERT_DESCRIPTION_BAD_CERTIFICATE_HASH_VALUE,
 ALERT_DESCRIPTION_BAD_CERTIFICATE_STATUS_RESPONSE,
 ALERT_DESCRIPTION_BAD_RECORD_MAC,
 ALERT_DESCRIPTION_CERTIFICATE_EXPIRED,
 ALERT_DESCRIPTION_CERTIFICATE_REVOKED,
 ALERT_DESCRIPTION_CERTIFICATE_UNKNOWN,
 ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE,
 ALERT_DESCRIPTION_CLOSE_NOTIFY, ALERT_DESCRIPTION_DECODE_ERROR,
 ALERT_DESCRIPTION_DECOMPRESSION_FAILURE,
 ALERT_DESCRIPTION_DECRYPT_ERROR,
 ALERT_DESCRIPTION_HANDSHAKE_FAILURE,
 ALERT_DESCRIPTION_ILLEGAL_PARAMETER,
 ALERT_DESCRIPTION_INSUFFICIENT_SECURITY,
 ALERT_DESCRIPTION_INTERNAL_ERROR,
 ALERT_DESCRIPTION_NO_RENEGOTIATION,
 ALERT_DESCRIPTION_PROTOCOL_VERSION,
 ALERT_DESCRIPTION_RECORD_OVERFLOW,
 ALERT_DESCRIPTION_UNEXPECTED_MESSAGE,
 ALERT_DESCRIPTION_UNKNOWN_CA,
 ALERT_DESCRIPTION_UNKNOWN_PSK_IDENTITY,
 ALERT_DESCRIPTION_UNRECOGNIZED_NAME,
 ALERT_DESCRIPTION_UNSUPPORTED_CERTIFICATE,
 ALERT_DESCRIPTION_UNSUPPORTED_EXTENSION,
 ALERT_DESCRIPTION_USER_CANCELLED)
 from _ssl import (SSL_ERROR_EOF, SSL_ERROR_INVALID_ERROR_CODE, SSL_ERROR_SSL,
 SSL_ERROR_SYSCALL, SSL_ERROR_WANT_CONNECT, SSL_ERROR_WANT_READ,
 SSL_ERROR_WANT_WRITE, SSL_ERROR_WANT_X509_LOOKUP, SSL_ERROR_ZERO_RETURN)
 from _ssl import VERIFY_CRL_CHECK_CHAIN, VERIFY_CRL_CHECK_LEAF, VERIFY_DEFAULT, VERIFY_X509_STRICT
 from _ssl import HAS_SNI, HAS_ECDH, HAS_NPN, HAS_ALPN
 from _ssl import _OPENSSL_API_VERSION
 from _ssl import PROTOCOL_SSLv23, PROTOCOL_TLSv1, PROTOCOL_TLSv1_1, PROTOCOL_TLSv1_2
 from _ssl import PROTOCOL_TLS, PROTOCOL_TLS_CLIENT, PROTOCOL_TLS_SERVER
 
 class AlertDescription(_IntEnum):
 ALERT_DESCRIPTION_ACCESS_DENIED = 0
 ALERT_DESCRIPTION_BAD_CERTIFICATE = 1
 ALERT_DESCRIPTION_BAD_CERTIFICATE_HASH_VALUE = 2
 ALERT_DESCRIPTION_BAD_CERTIFICATE_STATUS_RESPONSE = 3
 ALERT_DESCRIPTION_BAD_RECORD_MAC = 4
 ALERT_DESCRIPTION_CERTIFICATE_EXPIRED = 5
 ALERT_DESCRIPTION_CERTIFICATE_REVOKED = 6
 ALERT_DESCRIPTION_CERTIFICATE_UNKNOWN = 7
 ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE = 8
 ALERT_DESCRIPTION_CLOSE_NOTIFY = 9
 ALERT_DESCRIPTION_DECODE_ERROR = 10
 ALERT_DESCRIPTION_DECOMPRESSION_FAILURE = 11
 ALERT_DESCRIPTION_DECRYPT_ERROR = 12
 ALERT_DESCRIPTION_HANDSHAKE_FAILURE = 13
 ALERT_DESCRIPTION_ILLEGAL_PARAMETER = 14
 ALERT_DESCRIPTION_INSUFFICIENT_SECURITY = 15
 ALERT_DESCRIPTION_INTERNAL_ERROR = 16
 ALERT_DESCRIPTION_NO_RENEGOTIATION = 17
 ALERT_DESCRIPTION_PROTOCOL_VERSION = 18
 ALERT_DESCRIPTION_RECORD_OVERFLOW = 19
 ALERT_DESCRIPTION_UNEXPECTED_MESSAGE = 20
 ALERT_DESCRIPTION_UNKNOWN_CA = 21
 ALERT_DESCRIPTION_UNKNOWN_PSK_IDENTITY = 22
 ALERT_DESCRIPTION_UNRECOGNIZED_NAME = 23
 ALERT_DESCRIPTION_UNSUPPORTED_CERTIFICATE = 24
 ALERT_DESCRIPTION_UNSUPPORTED_EXTENSION = 25
 ALERT_DESCRIPTION_USER_CANCELLED = 26
 
 class SSLErrorNumber(_IntEnum):
 SSL_ERROR_EOF = 0
 SSL_ERROR_INVALID_ERROR_CODE = 1
 SSL_ERROR_SSL = 2
 SSL_ERROR_SYSCALL = 3
 SSL_ERROR_WANT_CONNECT = 4
 SSL_ERROR_WANT_READ = 5
 SSL_ERROR_WANT_WRITE = 6
 SSL_ERROR_WANT_X509_LOOKUP = 7
 SSL_ERROR_ZERO_RETURN = 8
 
 class VerifyMode(_IntEnum):
 CERT_NONE = 0
 CERT_OPTIONAL = 1
 CERT_REQUIRED = 2
 """
 + _verifyflags_enum()
 + _options_enum()
 )
 
 
 register_module_extender(AstroidManager(), "ssl", ssl_transform)
 
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