Edit File: securetransport.pyc
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This is an important feature because the Python Package Index is moving to become a TLSv1.2-or-higher server, and the default OpenSSL that ships with macOS is not capable of doing TLSv1.2. The only way to resolve this is to give macOS users an alternative solution to the problem, and that solution is to use SecureTransport. We use ctypes here because this solution must not require a compiler. That's because pip is not allowed to require a compiler either. This is not intended to be a seriously long-term solution to this problem. The hope is that PEP 543 will eventually solve this issue for us, at which point we can retire this contrib module. But in the short term, we need to solve the impending tire fire that is Python on Mac without this kind of contrib module. So...here we are. To use this module, simply import and inject it:: import urllib3.contrib.securetransport urllib3.contrib.securetransport.inject_into_urllib3() Happy TLSing! i ( t absolute_importNi ( t utili ( t Securityt SecurityConstt CoreFoundation( t _assert_no_errort _cert_array_from_pemt _temporary_keychaint _load_client_cert_chain( t _fileobject( t backport_makefilet s5 SecureTransport only works on Pythons with memoryviewt inject_into_urllib3t extract_from_urllib3i @ t PROTOCOL_SSLv2t PROTOCOL_SSLv3t PROTOCOL_TLSv1t PROTOCOL_TLSv1_1t PROTOCOL_TLSv1_2t PROTOCOL_TLSc C@ s: t t j _ t t _ t t j _ t t _ t t j _ d S( sG Monkey-patch urllib3 with SecureTransport-backed SSL-support. N( t SecureTransportContextR t ssl_t SSLContextt HAS_SNIt Truet IS_SECURETRANSPORT( ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR � s c C@ s: t t j _ t t _ t t j _ t t _ t t j _ d S( s> Undo monkey-patching by :func:`inject_into_urllib3`. N( t orig_util_SSLContextR R R t orig_util_HAS_SNIR t FalseR ( ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR � s c C@ s� d } y�t j | � } | d k r+ t j S| j } | d } | j � } d } d } t j | j | � } t | � } y� x� | | k r| d k s� | d k r� t j | g | � } | s� t j t j d � � q� n | j | | | !� } | | 7} | s~ | s t j SPq~ q~ WWnV t j k rl} | j } | d k rm| t j k rm| t j k rct j S� qmn X| | d <| | k r�t j Sd SWn/ t k r�} | d k r�| | _ n t j SXd S( ss SecureTransport read callback. This is called by ST to request that data be returned from the socket. i s timed outN( t Nonet _connection_refst getR t errSSLInternalt sockett gettimeoutt ctypest c_chart from_addresst memoryviewR t wait_for_readt errort errnot EAGAINt recv_intot errSSLClosedGracefult ECONNRESETt errSSLClosedAbortt errSSLWouldBlockt Exceptiont _exception( t connection_idt data_buffert data_length_pointert wrapped_sockett base_sockett requested_lengtht timeoutR( t read_countt buffert buffer_viewt readablest chunk_sizet e( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _read_callback� sN c C@ s� d } yet j | � } | d k r+ t j S| j } | d } t j | | � } | j � } d } d } y� x� | | k r� | d k s� | d k r� t j | g | � } | s� t j t j d � � q� n | j | � } | | 7} | | } qn WWnV t j k rH} | j } | d k rI| t j k rI| t j k r?t j S� qIn X| | d <| | k rft j Sd SWn/ t k r�} | d k r�| | _ n t j SXd S( sx SecureTransport write callback. This is called by ST to request that data actually be sent on the network. i s timed outN( R R R R R R! R# t string_atR" R t wait_for_writeR( R) R* t sendR- R. R/ R0 R1 ( R2 R3 R4 R5 R6 t bytes_to_writet dataR8 R( t sentt writablest chunk_sentR> ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _write_callback� sD t WrappedSocketc B@ s� e Z d Z d � Z e j d � � Z d � Z d � Z d � Z d � Z d � Z d � Z d 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's OpenSSL wrapped socket object. Note: _makefile_refs, _drop(), and _reuse() are needed for the garbage collector of PyPy. c C@ sn | | _ d | _ d | _ t | _ d | _ d | _ d | _ d | _ | j j � | _ | j j d � d S( Ni ( R! R t contextt _makefile_refsR t _closedR1 t _keychaint _keychain_dirt _client_cert_chainR" t _timeoutt settimeout( t selfR! ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt __init__. s c c@ sG d | _ d V| j d k rC | j d } | _ | j � | � n d S( s] A context manager that can be used to wrap calls that do I/O from SecureTransport. If any of the I/O callbacks hit an exception, this context manager will correctly propagate the exception after the fact. This avoids silently swallowing those exceptions. It also correctly forces the socket closed. N( R R1 t close( RR t exception( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _raise_on_error@ s c C@ sE t j t t � t � } t j | j | t t � � } t | � d S( s4 Sets up the allowed ciphers. By default this matches the set in util.ssl_.DEFAULT_CIPHERS, at least as supported by macOS. This is done custom and doesn't allow changing at this time, mostly because parsing OpenSSL cipher strings is going to be a freaking nightmare. N( R t SSLCipherSuitet lent CIPHER_SUITESt SSLSetEnabledCiphersRJ R ( RR t cipherst result( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _set_ciphersU s c C@ s� | s d St j j | � rC t | d � � } | j � } Wd QXn d } t j � } z� t | � } t j | j t j | � � } t | � | s� t j d � � n t j | | � } t | � t j | t � } t | � t j � } t j | t j | � � } t | � Wd | r't j | � n | d k rCt j | � n Xt j t j f } | j | k r~t j d | j � � n d S( s� Called when we have set custom validation. We do this in two cases: first, when cert validation is entirely disabled; and second, when using a custom trust DB. Nt rbs Failed to copy trust references) certificate verify failed, error code: %d( t ost patht isfilet opent readR R t SecTrustRefR t SSLCopyPeerTrustRJ R# t byrefR t sslt SSLErrort SecTrustSetAnchorCertificatest! SecTrustSetAnchorCertificatesOnlyR t SecTrustResultTypet SecTrustEvaluateR t CFReleaseR t kSecTrustResultUnspecifiedt kSecTrustResultProceedt value( RR t verifyt trust_bundlet ft cert_arrayt trustR\ t trust_resultt successes( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _custom_validateb s@ c C@ s[ t j d t j t j � | _ t j | j t t � } t | � t �@ t | � d } x | t k rw | d d } qZ W| t | <Wd QXt j | j | � } t | � | r� t | t � s� | j d � } n t j | j | t | � � } t | � n | j � t j | j | � } t | � t j | j | � } t | � | sT| d k r|t j | j t j t � } t | � n | r�t � \ | _ | _ t | j | | � | _ t j | j | j � } t | � n x� t rV| j � �h t j! | j � } | t j" k r t# j$ d � � n0 | t j% k rB| j& | | � w�n t | � PWd QXq�Wd S( s� Actually performs the TLS handshake. This is run automatically by wrapped socket, and shouldn't be needed in user code. i���i Ns utf-8s handshake timed out(' R t SSLCreateContextR R t kSSLClientSidet kSSLStreamTypeRJ t SSLSetIOFuncst _read_callback_pointert _write_callback_pointerR t _connection_ref_lockt idR t SSLSetConnectiont isinstancet bytest encodet SSLSetPeerDomainNameRX R] t SSLSetProtocolVersionMint SSLSetProtocolVersionMaxt SSLSetSessionOptiont" kSSLSessionOptionBreakOnServerAuthR R RM RN R RO t SSLSetCertificateRV t SSLHandshakeR/ R! R8 t errSSLServerAuthCompletedRx ( RR t server_hostnameRq Rr t min_versiont max_versiont client_certt client_keyt client_key_passphraseR\ t handle( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt handshake� s\ c C@ s | j j � S( N( R! t fileno( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR� � s c C@ s; | j d k r! | j d 8_ n | j r7 | j � n d S( Ni i ( RK RL RT ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _decref_socketios� s c C@ s/ t j | � } | j | | � } | | } | S( N( R# t create_string_bufferR+ ( RR t bufsizR: t bytes_readRD ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt recv s c C@ s� | j r d S| d k r( t | � } n t j | j | � } t j d � } | j � �) t j | j | | t j | � � } Wd QX| t j k r� | j d k r� t j d � � q� n/ | t j t j f k r� | j � n t | � | j S( Ni s recv timed out( RL R RX R# R$ t from_buffert c_size_tRV R t SSLReadRJ Rf R R/ Rp R! R8 R, t errSSLClosedNoNotifyRT R ( RR R: t nbytest processed_bytesR\ ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR+ s $ c C@ s | | _ d S( N( RP ( RR R8 ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyRQ 2 s c C@ s | j S( N( RP ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR" 5 s c C@ s� t j d � } | j � �/ t j | j | t | � t j | � � } Wd QX| t j k r| | j d k r| t j d � � n t | � | j S( Ni s send timed out( R# R� RV R t SSLWriteRJ RX Rf R R/ Rp R! R8 R ( RR RD R� R\ ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyRB 8 s * c C@ sG d } x: | t | � k rB | j | | | t !� } | | 7} q Wd S( Ni ( RX RB t SSL_WRITE_BLOCKSIZE( RR RD t total_sentRE ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt sendallI s c C@ s' | j � � t j | j � Wd QXd S( N( RV R t SSLCloseRJ ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt shutdownO s c C@ s� | j d k r� t | _ | j r= t j | j � d | _ n | j rb t j | j � d | _ n | j r� t j | j � t j | j � t j | j � d | _ | _ n | j j � S| j d 8_ d S( Ni ( RK R RL RJ R Rm R RO RM R t SecKeychainDeletet shutilt rmtreeRN R! RT ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyRT S s c C@ s | s t d � � n t j � } d } d } z� t j | j t j | � � } t | � | sb d St j | � } | s{ d St j | d � } | s� t � t j | � } | s� t � t j | � } t j | � } t j | | � } Wd | r� t j | � n | rt j | � n X| S( Ns2 SecureTransport only supports dumping binary certsi ( t ValueErrorR Rd R Re RJ R# Rf R t SecTrustGetCertificateCountt SecTrustGetCertificateAtIndext AssertionErrort SecCertificateCopyDataR t CFDataGetLengtht CFDataGetBytePtrR@ Rm ( RR t binary_formRu t certdatat der_bytesR\ t cert_countt leaft data_lengthR3 ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt getpeercertf s6 c C@ s | j d 7_ d S( Ni ( RK ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _reuse� s c C@ s/ | j d k r | j � n | j d 8_ d S( Ni ( RK RT ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt _drop� s N( t __name__t __module__t __doc__RS t contextlibt contextmanagerRV R] Rx R� R� R� R� R R+ RQ R" RB R� R� RT R R� R� R� ( ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyRI ' s& > Z ( > i����c C@ s% | j d 7_ t | | | d t �S( Ni RT ( RK R R ( RR t modet bufsize( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt makefile� s t rc O@ s d } t | | | | | � S( Ni ( R ( RR R� t bufferingt argst kwargs( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR� � 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 e d � � Z e j d � � Z 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 SecureTransport library, to translate the interface of the standard library ``SSLContext`` object to calls into SecureTransport. c C@ sP t | \ | _ | _ d | _ t | _ d | _ d | _ d | _ d | _ d S( Ni ( t _protocol_to_min_maxt _min_versiont _max_versiont _optionsR t _verifyR t _trust_bundlet _client_certt _client_keyt _client_key_passphrase( RR t protocol( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyRS � s c C@ s t S( s� SecureTransport cannot have its hostname checking disabled. For more, see the comment on getpeercert() in this file. ( R ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt check_hostname� s c C@ s d S( s� SecureTransport cannot have its hostname checking disabled. For more, see the comment on getpeercert() in this file. N( ( RR Rp ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR� � s c C@ s | j S( N( R� ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt options� s c C@ s | | _ d S( N( R� ( RR Rp ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR� � s c C@ s | j r t j St j S( N( R� Rg t CERT_REQUIREDt CERT_NONE( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt verify_mode� s c C@ s" | t j k r t n t | _ d S( N( Rg R� R R R� ( RR Rp ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR� � s c C@ s d S( N( ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt set_default_verify_paths� s c C@ s | j � S( N( R� ( RR ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt load_default_certs� s c C@ s% | t j j k r! t d � � n d S( Ns5 SecureTransport doesn't support custom cipher strings( R R t DEFAULT_CIPHERSR� ( RR R[ ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt set_ciphers s c C@ s. | d k r t d � � n | p$ | | _ d S( Ns1 SecureTransport does not support cert directories( R R� R� ( RR t cafilet capatht cadata( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt load_verify_locations s c C@ s | | _ | | _ | | _ d S( N( R� R� t _client_cert_passphrase( RR t certfilet keyfilet password( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt load_cert_chain s c C@ sl | s t � | s t � | s% t � t | � } | j | | j | j | j | j | j | j | j � | S( N( R� RI R� R� R� R� R� R� R� R� ( RR t sockt server_sidet do_handshake_on_connectt suppress_ragged_eofsR� R5 ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt wrap_socket s N( R� R� R� RS t propertyR� t setterR� R� R� R� R� R R� R� R R R� ( ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyR � s (g R� t __future__R R� R# R) t os.pathR_ R� R! Rg t threadingt weakrefR R t _securetransport.bindingsR R R t _securetransport.low_levelR R R R R t ImportErrorR t packages.backports.makefileR R& t NameErrort __all__R R R R R R t WeakValueDictionaryR t LockR R� t TLS_AES_256_GCM_SHA384t TLS_CHACHA20_POLY1305_SHA256t TLS_AES_128_GCM_SHA256t' TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384t% TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384t' TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256t% TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256t# TLS_DHE_DSS_WITH_AES_256_GCM_SHA384t# TLS_DHE_RSA_WITH_AES_256_GCM_SHA384t# TLS_DHE_DSS_WITH_AES_128_GCM_SHA256t# TLS_DHE_RSA_WITH_AES_128_GCM_SHA256t' TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384t% TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384t$ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHAt" TLS_ECDHE_RSA_WITH_AES_256_CBC_SHAt# TLS_DHE_RSA_WITH_AES_256_CBC_SHA256t# TLS_DHE_DSS_WITH_AES_256_CBC_SHA256t TLS_DHE_RSA_WITH_AES_256_CBC_SHAt TLS_DHE_DSS_WITH_AES_256_CBC_SHAt' TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256t% TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256t$ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHAt" TLS_ECDHE_RSA_WITH_AES_128_CBC_SHAt# TLS_DHE_RSA_WITH_AES_128_CBC_SHA256t# TLS_DHE_DSS_WITH_AES_128_CBC_SHA256t TLS_DHE_RSA_WITH_AES_128_CBC_SHAt TLS_DHE_DSS_WITH_AES_128_CBC_SHAt TLS_RSA_WITH_AES_256_GCM_SHA384t TLS_RSA_WITH_AES_128_GCM_SHA256t TLS_RSA_WITH_AES_256_CBC_SHA256t TLS_RSA_WITH_AES_128_CBC_SHA256t TLS_RSA_WITH_AES_256_CBC_SHAt TLS_RSA_WITH_AES_128_CBC_SHARY t kTLSProtocol1t kTLSProtocol12t PROTOCOL_SSLv23R� t hasattrt kSSLProtocol2R t kSSLProtocol3R R t kTLSProtocol11R R R R R R? RH t SSLReadFuncR} t SSLWriteFuncR~ t objectRI R� R ( ( ( sO /usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/securetransport.pyt <module> s� " 9 5� �