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Editing: pyopenssl.cpython-35.pyc
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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 e Z d Z d S)r N)�__name__� __module__� __qualname__� r r ��/builddir/build/BUILDROOT/alt-python35-pip-20.2.4-5.el8.x86_64/opt/alt/python35/lib/python3.5/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyr 7 s r )�timeout�error)�BytesIO)� _fileobject� )�backport_makefile)�six)�util�inject_into_urllib3�extract_from_urllib3T�PROTOCOL_SSLv3� SSLv3_METHOD�PROTOCOL_TLSv1_1�TLSv1_1_METHOD�PROTOCOL_TLSv1_2�TLSv1_2_METHODc c s! | ] \ } } | | f Vq d S)Nr )�.0�k�vr r r � <genexpr>g s r i @ c C sJ t � t t _ t t j _ t t _ t t j _ d t _ d t j _ d S)z7Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.TN)�_validate_dependencies_met�PyOpenSSLContextr � SSLContext�ssl_�HAS_SNI� IS_PYOPENSSLr r r r r s s c C sC t t _ t t j _ t t _ t t j _ d t _ d t j _ d S)z4Undo monkey-patching by :func:`inject_into_urllib3`.FN)�orig_util_SSLContextr r" r# �orig_util_HAS_SNIr$ r% r r r r r � s c C su d d l m } t | d d � d k r4 t d � � d d l m } | � } t | d d � d k rq t d � � d S) z{ Verifies that PyOpenSSL's package-level dependencies have been met. Throws `ImportError` if they are not met. r )� Extensions�get_extension_for_classNzX'cryptography' module missing required functionality. Try upgrading to v1.3.4 or newer.)�X509�_x509zS'pyOpenSSL' module missing required functionality. Try upgrading to v0.14 or newer.)Z cryptography.x509.extensionsr( �getattr� ImportErrorZOpenSSL.cryptor* )r( r* r r r r r � s r c C sZ d d � } d | k r | S| | � } | d k r8 d St j d k rV | j d � } | S) a% Converts a dNSName SubjectAlternativeName field to the form used by the standard library on the given Python version. Cryptography produces a dNSName as a unicode string that was idna-decoded from ASCII bytes. We need to idna-encode that string to get it back, and then on Python 3 we also need to convert to unicode via UTF-8 (the stdlib uses PyUnicode_FromStringAndSize on it, which decodes via UTF-8). If the name cannot be idna-encoded then we return None signalling that the name given should be skipped. c S s� d d l m } yg xS d d g D]E } | j | � r | t | � d � } | j d � | j | � Sq W| j | � SWn | j j k r� d SYn Xd S)z� Borrowed wholesale from the Python Cryptography Project. It turns out that we can't just safely call `idna.encode`: it can explode for wildcard names. This avoids that problem. r )�idnaz*.�.N�ascii)� pip._vendorr. � startswith�len�encode�core� IDNAError)�namer. �prefixr r r � idna_encode� s z'_dnsname_to_stdlib.<locals>.idna_encode�:N� r zutf-8)r; r )�sys� version_info�decode)r7 r9 r r r �_dnsname_to_stdlib� s r? c C s t | d � r | j � } n t t | j � } y | j j t j � j } Wnc t j k rg g SYnK t j t t j t f k r� } z t j d | � g SWYd d } ~ Xn Xd d � t t | j t j � � D� } | j d d � | j t j � D� � | S)zU Given an PyOpenSSL certificate, provides all the subject alternative names. �to_cryptographyz�A problem was encountered with the certificate that prevented urllib3 from finding the SubjectAlternativeName field. This can affect certificate validation. The error was %sNc S s( g | ] } | d k r d | f � q S)N�DNSr )r r7 r r r � <listcomp>� s z%get_subj_alt_name.<locals>.<listcomp>c s s! | ] } d t | � f Vq d S)z IP AddressN)�str)r r7 r r r r s z$get_subj_alt_name.<locals>.<genexpr>)�hasattrr@ r �openssl_backendr+ � extensionsr) r ZSubjectAlternativeName�valueZExtensionNotFoundZDuplicateExtensionr ZUnsupportedGeneralNameType� UnicodeError�log�warning�mapr? Zget_values_for_typeZDNSName�extendZ IPAddress)Z peer_cert�cert�ext�e�namesr r r �get_subj_alt_name� s* rQ c @ s� e Z d Z d Z d d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d d � Z d d � Z d d � Z d d � Z d S)!� WrappedSocketz�API-compatibility wrapper for Python OpenSSL's Connection-class. Note: _makefile_refs, _drop() and _reuse() are needed for the garbage collector of pypy. Tc C s1 | | _ | | _ | | _ d | _ d | _ d S)Nr F)� connection�socket�suppress_ragged_eofs�_makefile_refs�_closed)�selfrS rT rU r r r �__init__ s zWrappedSocket.__init__c C s | j j � S)N)rT �fileno)rX r r r rZ s zWrappedSocket.filenoc C s5 | j d k r | j d 8_ | j r1 | j � d S)Nr � )rV rW �close)rX r r r �_decref_socketios s z WrappedSocket._decref_socketiosc O sG y | j j | | � } Wn#t j j k rt } z3 | j rP | j d k rP d St t | � � � WYd d } ~ Xn� t j j k r� | j j � t j j k r� d S� Yn� t j j k rt j | j | j j � � s� t d � � n | j | | � SYnB t j j k r>} z t j d | � � WYd d } ~ Xn X| Sd S)Nr[ �Unexpected EOF� z The read operation timed outzread error: %r���)r` r^ )rS �recv�OpenSSL�SSL� SysCallErrorrU �args� SocketErrorrC �ZeroReturnError� get_shutdown�RECEIVED_SHUTDOWN� WantReadErrorr � wait_for_readrT � gettimeoutr �Error�ssl�SSLError)rX re �kwargs�datarO r r r ra s" $ &zWrappedSocket.recvc O sA y | j j | | � SWn#t j j k rr } z3 | j rN | j d k rN d St t | � � � WYd d } ~ Xn� t j j k r� | j j � t j j k r� d S� Yn� t j j k r� t j | j | j j � � s� t d � � n | j | | � SYn> t j j k r<} z t j d | � � WYd d } ~ Xn Xd S)Nr[ �Unexpected EOFr z The read operation timed outzread error: %rr` )r` rr )rS � recv_intorb rc rd rU re rf rC rg rh ri rj r rk rT rl r rm rn ro )rX re rp rO r r r rs 7 s $ zWrappedSocket.recv_intoc C s | j j | � S)N)rT � settimeout)rX r r r r rt N s zWrappedSocket.settimeoutc C s� x� y | j j | � SWq t j j k r[ t j | j | j j � � sT t � � w Yq t j j k r� } z t t | � � � WYd d } ~ Xq Xq Wd S)N) rS �sendrb rc ZWantWriteErrorr �wait_for_writerT rl r rd rf rC )rX rq rO r r r �_send_until_doneQ s z WrappedSocket._send_until_donec C sJ d } x= | t | � k rE | j | | | t � � } | | 7} q Wd S)Nr )r3 rw �SSL_WRITE_BLOCKSIZE)rX rq � total_sent�sentr r r �sendall\ s zWrappedSocket.sendallc C s | j j � d S)N)rS �shutdown)rX r r r r| d s zWrappedSocket.shutdownc C s^ | j d k rK y d | _ | j j � SWqZ t j j k rG d SYqZ Xn | j d 8_ d S)Nr[ T)rV rW rS r\ rb rc rm )rX r r r r\ h s zWrappedSocket.closeFc C sc | j j � } | s | S| r8 t j j t j j | � Sd d | j � j f f f d t | � i S)N�subject� commonName�subjectAltName) rS Zget_peer_certificaterb ZcryptoZdump_certificateZ FILETYPE_ASN1Z get_subjectZCNrQ )rX � binary_formr r r r � getpeercertr s zWrappedSocket.getpeercertc C s | j j � S)N)rS Zget_protocol_version_name)rX r r r �version� s zWrappedSocket.versionc C s | j d 7_ d S)Nr[ )rV )rX r r r �_reuse� s zWrappedSocket._reusec C s/ | j d k r | j � n | j d 8_ d S)Nr[ )rV r\ )rX r r r �_drop� s zWrappedSocket._dropN)r r r �__doc__rY rZ r] ra rs rt rw r{ r| r\ r� r� r� r� r r r r rR s rR r[ c C s% | j d 7_ t | | | d d �S)Nr[ r\ T)rV r )rX �mode�bufsizer r r �makefile� s r� c @ s� e Z d Z d Z d d � Z e d d � � Z e j d d � � Z e d d � � Z e j d d � � Z d d � Z d d � Z d d d d d � Z d d d d � Z d d d d d d � Z d S)r! z� I am a wrapper class for the PyOpenSSL ``Context`` object. I am responsible for translating the interface of the standard library ``SSLContext`` object to calls into PyOpenSSL. c C s; t | | _ t j j | j � | _ d | _ d | _ d S)Nr F)�_openssl_versions�protocolrb rc �Context�_ctx�_options�check_hostname)rX r� r r r rY � s zPyOpenSSLContext.__init__c C s | j S)N)r� )rX r r r �options� s zPyOpenSSLContext.optionsc C s | | _ | j j | � d S)N)r� r� Z set_options)rX rG r r r r� � s c C s t | j j � S)N)�_openssl_to_stdlib_verifyr� Zget_verify_mode)rX r r r � verify_mode� s z PyOpenSSLContext.verify_modec C s | j j t | t � d S)N)r� Z set_verify�_stdlib_to_openssl_verify�_verify_callback)rX rG r r r r� � s c C s | j j � d S)N)r� �set_default_verify_paths)rX r r r r� � s z)PyOpenSSLContext.set_default_verify_pathsc C s5 t | t j � r! | j d � } | j j | � d S)Nzutf-8)� isinstancer � text_typer4 r� Zset_cipher_list)rX �ciphersr r r � set_ciphers� s z PyOpenSSLContext.set_ciphersNc C s� | d k r | j d � } | d k r6 | j d � } y9 | j j | | � | d k rn | j j t | � � Wn> t j j k r� } z t j d | � � WYd d } ~ Xn Xd S)Nzutf-8z'unable to load trusted certificates: %r) r4 r� �load_verify_locationsr rb rc rm rn ro )rX �cafile�capath�cadatarO r r r r� � s z&PyOpenSSLContext.load_verify_locationsc ss | j j | � � d k rY t � t j � s= � j d � � | j j � f d d � � | j j | pk | � d S)Nzutf-8c s � S)Nr )�_)�passwordr r �<lambda>� s z2PyOpenSSLContext.load_cert_chain.<locals>.<lambda>)r� Zuse_certificate_chain_filer� r � binary_typer4 Z set_passwd_cbZuse_privatekey_file)rX �certfile�keyfiler� r )r� r �load_cert_chain� s z PyOpenSSLContext.load_cert_chainFTc C s� t j j | j | � } t | t j � r9 | j d � } | d k rR | j | � | j � x� y | j � Wn| t j j k r� t j | | j � � s� t d � � w_ Yn> t j j k r� } z t j d | � � WYd d } ~ Xn XPq_ Wt | | � S)Nzutf-8zselect timed outzbad handshake: %r)rb rc � Connectionr� r� r r� r4 Zset_tlsext_host_nameZset_connect_state� do_handshakerj r rk rl r rm rn ro rR )rX �sock� server_side�do_handshake_on_connectrU �server_hostname�cnxrO r r r � wrap_socket� s" &z PyOpenSSLContext.wrap_socket)r r r r� rY �propertyr� �setterr� r� r� r� r� r� r r r r r! � s r! c C s | d k S)Nr r )r� r Zerr_noZ err_depthZ return_coder r r r� � s r� r` )Kr� � __future__r Z OpenSSL.SSLrb Z cryptographyr Z$cryptography.hazmat.backends.opensslr rE Z)cryptography.hazmat.backends.openssl.x509r Zcryptography.x509r r- � ExceptionrT r r rf �ior r Zpackages.backports.makefiler �loggingrn �packagesr r< � r �__all__r$ � PROTOCOL_TLSrc Z SSLv23_METHOD�PROTOCOL_TLSv1Z TLSv1_METHODr� rD r r r r r r � CERT_NONEZ VERIFY_NONE� CERT_OPTIONALZ VERIFY_PEER� CERT_REQUIREDZVERIFY_FAIL_IF_NO_PEER_CERTr� �dict�itemsr� rx r' r# r" r& � getLoggerr rI r r r r? rQ �objectrR r� r! r� r r r r �<module>+ sh !!! + 6� Z
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