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Editing: pyopenssl.pyo
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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) i ( t absolute_importN( t x509( t backend( t _Certificate( t timeoutt error( t BytesIO( t _fileobjecti ( t backport_makefile( t six( t utilt inject_into_urllib3t extract_from_urllib3t PROTOCOL_TLSv1_1t TLSv1_1_METHODt PROTOCOL_TLSv1_2t TLSv1_2_METHODc c@ s! | ] \ } } | | f Vq d S( N( ( t .0t kt v( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pys <genexpr>` s i @ c C@ sA t � t t j _ t t _ t t j _ t t _ t t j _ d S( s7 Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.N( t _validate_dependencies_mett PyOpenSSLContextR t ssl_t SSLContextt HAS_SNIt Truet IS_PYOPENSSL( ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR m s c C@ s: t t j _ t t _ t t j _ t t _ t t j _ d S( s4 Undo monkey-patching by :func:`inject_into_urllib3`.N( t orig_util_SSLContextR R R t orig_util_HAS_SNIR t FalseR ( ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR y s c C@ s{ d d l m } t | d d � d k r7 t d � � n d d l m } | � } t | d d � d k rw t d � � n d S( s{ Verifies that PyOpenSSL's package-level dependencies have been met. Throws `ImportError` if they are not met. i ( t Extensionst get_extension_for_classsX 'cryptography' module missing required functionality. Try upgrading to v1.3.4 or newer.( t X509t _x509sS 'pyOpenSSL' module missing required functionality. Try upgrading to v0.14 or newer.N( t cryptography.x509.extensionsR t getattrt Nonet ImportErrort OpenSSL.cryptoR ( R R R ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR � s c C@ s: d � } | | � } t j d k r6 | j d � } n | S( s� 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). c S@ si d d l } xM d d g D]? } | j | � r | t | � } | j d � | j | � Sq W| j | � S( s� 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. i Nu *.u .t ascii( t idnat startswitht lent encode( t nameR( t prefix( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt idna_encode� s i i s utf-8( i i ( t syst version_infot decode( R, R. ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt _dnsname_to_stdlib� s c C@ s� t | d � r | j � } n t t | j � } y | j j t j � j } WnM t j k rc g St j t j t j t f k r� } t j d | � g SXg | j t j � D] } d t | � f ^ q� } | j d � | j t j � D� � | S( sU Given an PyOpenSSL certificate, provides all the subject alternative names. t to_cryptographys� A problem was encountered with the certificate that prevented urllib3 from finding the SubjectAlternativeName field. This can affect certificate validation. The error was %st DNSc s@ s! | ] } d t | � f Vq d S( s IP AddressN( t str( R R, ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pys <genexpr>� s ( t hasattrR3 R t openssl_backendR! t extensionsR R t SubjectAlternativeNamet valuet ExtensionNotFoundt DuplicateExtensiont UnsupportedExtensiont UnsupportedGeneralNameTypet UnicodeErrort logt warningt get_values_for_typet DNSNameR2 t extendt IPAddress( t peer_certt certt extt eR, t names( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt get_subj_alt_name� s( .t WrappedSocketc B@ s� e Z d Z e d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z e d � Z d � Z d � Z RS( s� API-compatibility wrapper for Python OpenSSL's Connection-class. Note: _makefile_refs, _drop() and _reuse() are needed for the garbage collector of pypy. c C@ s1 | | _ | | _ | | _ d | _ t | _ d S( Ni ( t connectiont sockett suppress_ragged_eofst _makefile_refsR t _closed( t selfRM RN RO ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt __init__� s c C@ s | j j � S( N( RN t fileno( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRT � s c C@ s; | j d k r! | j d 8_ n | j r7 | j � n d S( Ni i ( RP RQ t close( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt _decref_socketios� s c O@ s� y | j j | | � } Wn� t j j k rb } | j rM | j d k rM d St t | � � � n� t j j k r� } | j j � t j j k r� d S� n^ t j j k r� t j | j | j j � � } | s� t d � � q� | j | | � Sn X| Sd S( Ni����s Unexpected EOFt s The read operation timed out( i����s Unexpected EOF( RM t recvt OpenSSLt SSLt SysCallErrorRO t argst SocketErrorR5 t ZeroReturnErrort get_shutdownt RECEIVED_SHUTDOWNt WantReadErrorR t wait_for_readRN t gettimeoutR ( RR R\ t kwargst dataRI t rd( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRX s c O@ s� y | j j | | � SWn� t j j k r` } | j rK | j d k rK d St t | � � � n� t j j k r� } | j j � t j j k r� d S� nZ t j j k r� t j | j | j j � � } | s� t d � � q� | j | | � Sn Xd S( Ni����s Unexpected EOFi s The read operation timed out( i����s Unexpected EOF( RM t recv_intoRY RZ R[ RO R\ R] R5 R^ R_ R` Ra R Rb RN Rc R ( RR R\ Rd RI Rf ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRg s c C@ s | j j | � S( N( RN t settimeout( RR R ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRh * s c C@ s� x� t r� y | j j | � SWq t j j k ri t j | j | j j � � } | s t � � q q q t j j k r� } t t | � � � q Xq Wd S( N( R RM t sendRY RZ t WantWriteErrorR t wait_for_writeRN Rc R R[ R] R5 ( RR Re t wrRI ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt _send_until_done- s c C@ sG d } x: | t | � k rB | j | | | t !� } | | 7} q Wd S( Ni ( R* Rm t SSL_WRITE_BLOCKSIZE( RR Re t total_sentt sent( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt sendall9 s c C@ s | j j � d S( N( RM t shutdown( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRr ? s c C@ sZ | j d k rG y t | _ | j j � SWqV t j j k rC d SXn | j d 8_ d S( Ni ( RP R RQ RM RU RY RZ t Error( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRU C s c C@ se | j j � } | s | S| r8 t j j t j j | � Si d | j � j f f f d 6t | � d 6S( Nt commonNamet subjectt subjectAltName( RM t get_peer_certificateRY t cryptot dump_certificatet FILETYPE_ASN1t get_subjectt CNRK ( RR t binary_formR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt getpeercertM s c C@ s | j d 7_ d S( Ni ( RP ( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt _reuse_ s c C@ s/ | j d k r | j � n | j d 8_ d S( Ni ( RP RU ( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt _dropb s ( t __name__t __module__t __doc__R RS RT RV RX Rg Rh Rm Rq Rr RU R R~ R R� ( ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRL � s i����c C@ s% | j d 7_ t | | | d t �S( Ni RU ( RP R R ( RR t modet bufsize( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt makefilej s R c B@ s� e Z d Z d � Z e d � � Z e j d � � Z e d � � Z e j d � � Z d � Z d � Z d d d d � Z d d d � Z e e e d d � Z RS( s� 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 | _ t | _ d S( Ni ( t _openssl_versionst protocolRY RZ t Contextt _ctxt _optionsR t check_hostname( RR R� ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyRS y s c C@ s | j S( N( R� ( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt options s c C@ s | | _ | j j | � d S( N( R� R� t set_options( RR R: ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR� � s c C@ s t | j j � S( N( t _openssl_to_stdlib_verifyR� t get_verify_mode( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt verify_mode� s c C@ s | j j t | t � d S( N( R� t set_verifyt _stdlib_to_openssl_verifyt _verify_callback( RR R: ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR� � s c C@ s | j j � d S( N( R� t set_default_verify_paths( RR ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR� � s c C@ s8 t | t j � r$ | j d � } n | j j | � d S( Ns utf-8( t isinstanceR t text_typeR+ R� t set_cipher_list( RR t ciphers( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt set_ciphers� s c C@ sx | d k r | j d � } n | d k r< | j d � } n | j j | | � | d k rt | j j t | � � n d S( Ns utf-8( R$ R+ R� t load_verify_locationsR ( RR t cafilet capatht cadata( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR� � s c @ sR | j j | � � d k r8 | j j � f d � � n | j j | pJ | � d S( Nc @ s � S( N( ( t max_lengtht prompt_twicet userdata( t password( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt <lambda>� RW ( R� t use_certificate_fileR$ t set_passwd_cbt use_privatekey_file( RR t certfilet keyfileR� ( ( R� sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt load_cert_chain� s c C@ s t j j | j | � } t | t j � r< | j d � } n | d k rX | j | � n | j � x� t r� y | j � Wnr t j j k r� t j | | j � � } | se t d � � qe qe n, t j j k r� } t j d | � � n XPqe Wt | | � S( Ns utf-8s select timed outs bad handshake: %r( RY RZ t ConnectionR� R� R R� R+ R$ t set_tlsext_host_namet set_connect_stateR t do_handshakeRa R Rb Rc R Rs t sslt SSLErrorRL ( RR t sockt server_sidet do_handshake_on_connectRO t server_hostnamet cnxRf RI ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt wrap_socket� s$ N( R� R� R� RS t propertyR� t setterR� R� R� R$ R� R� R R R� ( ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR s s c C@ s | d k S( Ni ( ( R� R t err_not err_deptht return_code( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyR� � s (L R� t __future__R t OpenSSL.SSLRY t cryptographyR t$ cryptography.hazmat.backends.opensslR R7 t) cryptography.hazmat.backends.openssl.x509R RN R R R] t ioR R R% R$ t packages.backports.makefileR t loggingR� t packagesR R/ RW R t __all__R R RZ t SSLv23_METHODt PROTOCOL_SSLv23t TLSv1_METHODt PROTOCOL_TLSv1R� R6 R R R R t updatet SSLv3_METHODt PROTOCOL_SSLv3t AttributeErrort VERIFY_NONEt CERT_NONEt VERIFY_PEERt CERT_OPTIONALt VERIFY_FAIL_IF_NO_PEER_CERTt CERT_REQUIREDR� t dictt itemsR� Rn R R R R t getLoggerR� R@ R R R R2 RK t objectRL R� R R� ( ( ( sI /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.pyt <module>+ sh !!! 3� S
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