[EDIT] FILE: pyopenssl.cpython-36.pyc
3 �Pf�; � @ s, d Z ddlmZ ddlZddlmZ ddlmZ ddl m Z ddl m Z mZ ddlmZ ydd l mZ W n$ ek r� dZd d lmZ Y nX ddlZddlZd d lmZ ddlZd d lm Z ddgZ dZ ej ej j!ej"ej j#iZ$e%ed�o�e%ej d��rej j&e$ej'< e%ed��r0e%ej d��r0ej j(e$ej)< ye$j*ej+ej j,i� W n e-k �r^ Y nX ej.ej j/ej0ej j1ej2ej j1ej j3 iZ4e5dd� e4j6� D ��Z7dZ8e j Z9e j:j;Z<ej=e>�Z?dd� Z@dd� ZAdd� ZBd d � ZCd d � ZDG d d!� d!eE�ZFe�rd*d#d$�ZGneZGeGeF_GG d%d&� d&eE�ZHd'd(� ZIdS )+ab SSL with SNI_-support for Python 2. Follow these instructions if you would like to verify SSL certificates in Python 2. Note, the default libraries do *not* do certificate checking; you need to do additional work to validate certificates yourself. 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)�timeout�error)�BytesIO)� _fileobject� )�backport_makefile)�six)�util�inject_into_urllib3�extract_from_urllib3T�PROTOCOL_TLSv1_1�TLSv1_1_METHOD�PROTOCOL_TLSv1_2�TLSv1_2_METHODc c s | ]\}}||fV qd S )N� )�.0�k�vr r � /usr/lib/python3.6/pyopenssl.py� <genexpr>` s r i @ c C s. t � ttj_tt_ttj_dt_dtj_dS )z7Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.TN)�_validate_dependencies_met�PyOpenSSLContextr �ssl_� SSLContext�HAS_SNI� IS_PYOPENSSLr r r r r m s c C s( t tj_tt_ttj_dt_dtj_dS )z4Undo monkey-patching by :func:`inject_into_urllib3`.FN)�orig_util_SSLContextr r r �orig_util_HAS_SNIr r r r r r r y s c C sR ddl m} t| dd�dkr$td��ddlm} |� }t|dd�dkrNtd��dS ) 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 s( dd� }|| �} t jdkr$| jd�} | S )a� Converts a dNSName SubjectAlternativeName field to the form used by the standard library on the given Python version. Cryptography produces a dNSName as a unicode string that was idna-decoded from ASCII bytes. We need to idna-encode that string to get it back, and then on Python 3 we also need to convert to unicode via UTF-8 (the stdlib uses PyUnicode_FromStringAndSize on it, which decodes via UTF-8). c S sN ddl }x:dD ]2}| j|�r| t|�d� } |jd�|j| � S qW |j| �S )z� Borrowed wholesale from the Python Cryptography Project. It turns out that we can't just safely call `idna.encode`: it can explode for wildcard names. This avoids that problem. r N�*.�.�ascii)r( r) )�idna� startswith�len�encode)�namer+ �prefixr r r � idna_encode� s z'_dnsname_to_stdlib.<locals>.idna_encode� r zutf-8)r2 r )�sys� version_info�decode)r/ r1 r r r �_dnsname_to_stdlib� s r6 c C s� t | d�r| j� }n tt| j�}y|jjtj�j }W nN tj k rJ g S tj tj tj tfk r� } ztjd|� g S d}~X nX dd� |jtj�D �}|jdd� |jtj�D �� |S )zU Given an PyOpenSSL certificate, provides all the subject alternative names. �to_cryptographyz�A problem was encountered with the certificate that prevented urllib3 from finding the SubjectAlternativeName field. This can affect certificate validation. The error was %sNc S s g | ]}d t |�f�qS )ZDNS)r6 )r r/ r r r � <listcomp>� s z%get_subj_alt_name.<locals>.<listcomp>c s s | ]}d t |�fV qdS )z IP AddressN)�str)r r/ r r r r � s z$get_subj_alt_name.<locals>.<genexpr>)�hasattrr7 r �openssl_backendr% � extensionsr# r ZSubjectAlternativeName�valueZExtensionNotFoundZDuplicateExtensionZUnsupportedExtensionZUnsupportedGeneralNameType� UnicodeError�logZwarningZget_values_for_typeZDNSName�extendZ IPAddress)Z peer_certZcertZext�e�namesr r r �get_subj_alt_name� s( rC c @ s| e Zd ZdZd dd�Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z d dd�Zdd� Zd d � Zd 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 s" || _ || _|| _d| _d| _d S )Nr F)� connection�socket�suppress_ragged_eofs�_makefile_refs�_closed)�selfrE rF rG r r r �__init__� s zWrappedSocket.__init__c C s | j j� S )N)rF �fileno)rJ r r r rL � s zWrappedSocket.filenoc C s* | j dkr| j d8 _ | jr&| j� d S )Nr � )rH rI �close)rJ r r r �_decref_socketios� s z WrappedSocket._decref_socketiosc O s� y| j j||�}W n� tjjk rX } z&| jr<|jdkr<dS tt|���W Y d d }~X n� tjj k r� } z | j j � tjj kr�dS � W Y d d }~X nJ tjj k r� t j| j| jj� �}|s�td��n | j||�S Y nX |S d S )NrM �Unexpected EOF� z The read operation timed out���)rR rP )rE �recv�OpenSSL�SSL� SysCallErrorrG �args� SocketErrorr9 �ZeroReturnError� get_shutdown�RECEIVED_SHUTDOWN� WantReadErrorr � wait_for_readrF � gettimeoutr )rJ rW �kwargs�datarA �rdr r r rS s zWrappedSocket.recvc O s� y| j j||�S tjjk rT } z&| jr8|jdkr8dS tt|���W Y d d }~X n� tjj k r� } z | j j � tjj kr~dS � W Y d d }~X nF tjj k r� t j| j| jj� �}|s�td��n | j||�S Y nX d S )NrM �Unexpected EOFr z The read operation timed outrR )rR rb )rE � recv_intorT rU rV rG rW rX r9 rY rZ r[ r\ r r] rF r^ r )rJ rW r_ rA ra r r r rc s zWrappedSocket.recv_intoc C s | j j|�S )N)rF � settimeout)rJ r r r r rd * s zWrappedSocket.settimeoutc C s� xzy | j j|�S tjjk rF tj| j| jj� �}|s@t � �wY q tjj k rv } zt t |���W Y d d }~X qX qW d S )N) rE �sendrT rU ZWantWriteErrorr Zwait_for_writerF r^ r rV rX r9 )rJ r` �wrrA r r r �_send_until_done- s z WrappedSocket._send_until_donec C s8 d}x.|t |�k r2| j|||t � �}||7 }qW d S )Nr )r- rg �SSL_WRITE_BLOCKSIZE)rJ r` Z total_sentZsentr r r �sendall9 s zWrappedSocket.sendallc C s | j j� d S )N)rE �shutdown)rJ r r r rj ? s zWrappedSocket.shutdownc C sH | j dk r6yd| _| jj� S tjjk r2 d S X n| j d8 _ d S )NrM T)rH rI rE rN rT rU �Error)rJ r r r rN C s zWrappedSocket.closeFc C sD | j j� }|s|S |r(tjjtjj|�S d|j� jffft|�d�S )NZ commonName)ZsubjectZsubjectAltName) rE Zget_peer_certificaterT ZcryptoZdump_certificateZ FILETYPE_ASN1Z get_subjectZCNrC )rJ Z binary_formr r r r � getpeercertM s zWrappedSocket.getpeercertc C s | j d7 _ d S )NrM )rH )rJ r r r �_reuse_ s zWrappedSocket._reusec C s& | j dk r| j� n| j d8 _ d S )NrM )rH rN )rJ r r r �_dropb s zWrappedSocket._dropN)T)F)�__name__� __module__� __qualname__�__doc__rK rL rO rS rc rd rg ri rj rN rl rm rn r r r r rD � s rD rM c C s | j d7 _ t| ||dd�S )NrM T)rN )rH r )rJ �mode�bufsizer r r �makefilej s ru c @ sz e Zd ZdZdd� Zedd� �Zejdd� �Zedd� �Zejd d� �Zd d � Z d d � Z ddd�Z ddd�Z ddd�Z dS )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 | | _tjj| j�| _d| _d| _d S )Nr F)�_openssl_versions�protocolrT rU ZContext�_ctx�_optionsZcheck_hostname)rJ rw r r r rK y s zPyOpenSSLContext.__init__c C s | j S )N)ry )rJ r r r �options s zPyOpenSSLContext.optionsc C s || _ | jj|� d S )N)ry rx Z set_options)rJ r= r r r rz � s c C s t | jj� S )N)�_openssl_to_stdlib_verifyrx Zget_verify_mode)rJ r r r � verify_mode� s z PyOpenSSLContext.verify_modec C s | j jt| t� d S )N)rx Z set_verify�_stdlib_to_openssl_verify�_verify_callback)rJ r= r r r r| � s c C s | j j� d S )N)rx �set_default_verify_paths)rJ r r r r � s z)PyOpenSSLContext.set_default_verify_pathsc C s& t |tj�r|jd�}| jj|� d S )Nzutf-8)� isinstancer � text_typer. rx Zset_cipher_list)rJ Zciphersr r r � set_ciphers� s z PyOpenSSLContext.set_ciphersNc C sN |d k r|j d�}|d k r$|j d�}| jj||� |d k rJ| jjt|�� d S )Nzutf-8)r. rx �load_verify_locationsr )rJ ZcafileZcapathZcadatar r r r� � s z&PyOpenSSLContext.load_verify_locationsc s< | j j|� � d k r(| j j� fdd�� | j j|p4|� d S )Nc s � S )Nr )Z max_lengthZ prompt_twiceZuserdata)�passwordr r �<lambda>� s z2PyOpenSSLContext.load_cert_chain.<locals>.<lambda>)rx Zuse_certificate_fileZ set_passwd_cbZuse_privatekey_file)rJ ZcertfileZkeyfiler� r )r� r �load_cert_chain� s z PyOpenSSLContext.load_cert_chainFTc C s� t jj| j|�}t|tj�r&|jd�}|d k r8|j|� |j � x|y |j � W nh t jj k r� t j ||j� �}|s~td��wBY n4 t jjk r� } ztjd| ��W Y d d }~X nX P qBW t||�S )Nzutf-8zselect timed outzbad handshake: %r)rT rU Z Connectionrx r� r r� r. Zset_tlsext_host_nameZset_connect_stateZ do_handshaker\ r r] r^ r rk �sslZSSLErrorrD ) rJ ZsockZ server_sideZdo_handshake_on_connectrG Zserver_hostname�cnxra rA r r r � wrap_socket� s$ z PyOpenSSLContext.wrap_socket)NNN)NN)FTTN)ro rp rq rr rK �propertyrz �setterr| r r� r� r� r� r r r r r s s r c C s |dkS )Nr r )r� r Zerr_noZ err_depthZ return_coder r r r~ � s r~ rR )rR )Jrr Z __future__r Z OpenSSL.SSLrT Z cryptographyr Z$cryptography.hazmat.backends.opensslr r; Z)cryptography.hazmat.backends.openssl.x509r rF r r rX �ior r r' Zpackages.backports.makefiler Zloggingr� Zpackagesr r3 � r �__all__r ZPROTOCOL_SSLv23rU Z SSLv23_METHODZPROTOCOL_TLSv1Z TLSv1_METHODrv r: r r r r �updateZPROTOCOL_SSLv3Z SSLv3_METHOD�AttributeErrorZ CERT_NONEZ VERIFY_NONEZ CERT_OPTIONALZ VERIFY_PEERZ CERT_REQUIREDZVERIFY_FAIL_IF_NO_PEER_CERTr} �dict�itemsr{ rh r! r r r Z getLoggerro r? r r r r6 rC �objectrD ru r r~ r r r r �<module>+ sh 3 S
SAVE
CANCEL