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A session defines certain connection parameters which may be re-used to speed up the setup of subsequent connections. .. versionadded:: 0.14 Nr‡r|r|r|r}rthsrtc@sÜeZdZdZededededede de ded ed i Z edd„e ¡DƒƒZ d d„Zdd„Zdd„Zdjdd„Zdd„Zdkdd„Zdd„Zdd„Zdd„Zd d!„Zefd"d#„Zd$d%„Zd&d'„Zd(d)„Zefd*d+„Z d,d-„Z!d.d/„Z"d0d1„Z#d2d3„Z$d4d5„Z%d6d7„Z&dld8d9„Z'd:d;„Z(dd?„Z*d@dA„Z+dBdC„Z,dDdE„Z-dFdG„Z.dHdI„Z/dJdK„Z0dLdM„Z1dNdO„Z2e3dPdQ„ƒZ4dRdS„Z5dTdU„Z6dVdW„Z7dXdY„Z8dZd[„Z9d\d]„Z:d^d_„Z;eddde„Z?dmdfdg„Z@dndhdi„ZAdS)orua- :class:`OpenSSL.SSL.Context` instances define the parameters for setting up new SSL connections. :param method: One of TLS_METHOD, TLS_CLIENT_METHOD, or TLS_SERVER_METHOD. SSLv23_METHOD, TLSv1_METHOD, etc. are deprecated and should not be used. 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If capath is passed, it must be a directory prepared using the ``c_rehash`` tool included with OpenSSL. Either, but not both, of *pemfile* or *capath* may be :data:`None`. :param cafile: In which file we can find the certificates (``bytes`` or ``unicode``). :param capath: In which directory we can find the certificates (``bytes`` or ``unicode``). :return: None N)r£rµÚ_path_stringr“ZSSL_CTX_load_verify_locationsrÛr)rÚcafileÚcapathZload_resultr|r|r}Úload_verify_locationsÑsÿzContext.load_verify_locationscs&tˆƒ‡‡fdd„ƒ}tt|dddS)Ncsˆ||ˆjƒSrŠ)rÞ)ÚsizeZverifyÚuserdatarŸr|r}r¡òsz'Context._wrap_callback..wrapperT)Z more_argsÚtruncate)rrrr¤r|rŸr}Ú_wrap_callbackñs ÿzContext._wrap_callbackcCs@t|ƒstdƒ‚| |¡|_|jj|_t |j|j¡||_ dS)aò Set the passphrase callback. This function will be called when a private key with a passphrase is loaded. :param callback: The Python callback to use. This must accept three positional arguments. First, an integer giving the maximum length of the passphrase it may return. If the returned passphrase is longer than this, it will be truncated. Second, a boolean value which will be true if the user should be prompted for the passphrase twice and the callback should verify that the two values supplied are equal. Third, the value given as the *userdata* parameter to :meth:`set_passwd_cb`. The *callback* must return a byte string. If an error occurs, *callback* should return a false value (e.g. an empty string). :param userdata: (optional) A Python object which will be given as argument to the callback :return: None úcallback must be callableN) Úcallabler¬rùrÜr rÝr“ZSSL_CTX_set_default_passwd_cbrÛrÞ)rr r÷r|r|r}Ú set_passwd_cbús ÿzContext.set_passwd_cbcCsˆt |j¡}t|dkƒt t ¡¡ d¡}t t ¡¡ d¡}| ||¡s„t t ¡¡}t t ¡¡}|tkr„|t kr„| tt¡dS)aÙ Specify that the platform provided CA certificates are to be used for verification purposes. 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This should take two arguments: a Connection object and a bytestring that contains the key material in the format used by NSS for its SSLKEYLOGFILE debugging output. :return: None cst |¡}ˆtj||ƒdSrŠ)r£rÇrvr–)rœÚliner@r|r}r¡s z,Context.set_keylog_callback..wrapperz#void (*)(const SSL *, const char *)N)rr£r râr“ZSSL_CTX_set_keylog_callbackrÛr¤r|r@r}Úset_keylog_callbacksÿzContext.set_keylog_callbackcCs|jS)zw Get the application data (supplied via :meth:`set_app_data()`) :return: The application data ©rärŒr|r|r}Úget_app_data%szContext.get_app_datacCs ||_dS)z Set the application data (will be returned from get_app_data()) :param data: Any Python object :return: None NrD©rr¸r|r|r}Úset_app_data-szContext.set_app_datacCs.t |j¡}|tjkrdSt t¡}||_|S)zú Get the certificate store for the context. This can be used to add "trusted" certificates without using the :meth:`load_verify_locations` method. :return: A X509Store object or None if it does not have one. N)r“ZSSL_CTX_get_cert_storerÛr£rµrÚ__new__Z_store)rÚstoreZpystorer|r|r}Úget_cert_store6s zContext.get_cert_storecCs t|tƒstdƒ‚t |j|¡S)zÝ Add options. Options set before are not cleared! This method should be used with the :const:`OP_*` constants. :param options: The options to add. :return: The new option bitmask. zoptions must be an integer)rªr r¬r“ZSSL_CTX_set_optionsrÛ)rÚoptionsr|r|r}Úset_optionsGs zContext.set_optionscCs t|tƒstdƒ‚t |j|¡S)zà Add modes via bitmask. Modes set before are not cleared! This method should be used with the :const:`MODE_*` constants. :param mode: The mode to add. :return: The new mode bitmask. r$)rªr r¬r“ZSSL_CTX_set_moderÛr%r|r|r}rêTs zContext.set_modecs6tˆƒ‡fdd„ƒ}t d|¡|_t |j|j¡dS)a Specify a callback function to be called when clients specify a server name. :param callback: The callback function. It will be invoked with one argument, the Connection instance. .. versionadded:: 0.13 csˆtj|ƒdS)Nrr>)rœZalertr±r@r|r}r¡lsz7Context.set_tlsext_servername_callback..wrapperzint (*)(SSL *, int *, void *)N)rr£r rãr“Z&SSL_CTX_set_tlsext_servername_callbackrÛr¤r|r@r}Úset_tlsext_servername_callbackasÿÿz&Context.set_tlsext_servername_callbackcCs,t|tƒstdƒ‚tt |j|¡dkƒdS)z÷ Enable support for negotiating SRTP keying material. :param bytes profiles: A colon delimited list of protection profile names, like ``b'SRTP_AES128_CM_SHA1_80:SRTP_AES128_CM_SHA1_32'``. :return: None zprofiles must be a byte string.rN)rªr«r¬rÙr“ZSSL_CTX_set_tlsext_use_srtprÛ)rZprofilesr|r|r}Úset_tlsext_use_srtpxs ÿzContext.set_tlsext_use_srtpcCsFd t dd„|Dƒ¡¡}t d|¡}tt |j|t |ƒ¡dkƒdS)a• Specify the protocols that the client is prepared to speak after the TLS connection has been negotiated using Application Layer Protocol Negotiation. :param protos: A list of the protocols to be offered to the server. This list should be a Python list of bytestrings representing the protocols to offer, e.g. ``[b'http/1.1', b'spdy/2']``. r§css|]}tt|ƒƒ|fVqdSrŠ©r r®©rÔÚpr|r|r}rÖ•r§z*Context.set_alpn_protos..r¨rN) ÚjoinrÚ from_iterabler£rrÙr“ZSSL_CTX_set_alpn_protosrÛr®©rZprotosZprotostrZ input_strr|r|r}Úset_alpn_protos‡s ÿÿýÿzContext.set_alpn_protoscCs,t|ƒ|_|jj|_t |j|jtj¡dS)aœ Specify a callback function that will be called on the server when a client offers protocols using ALPN. :param callback: The callback function. It will be invoked with two arguments: the Connection, and a list of offered protocols as bytestrings, e.g ``[b'http/1.1', b'spdy/2']``. It can return one of those bytestrings to indicate the chosen protocol, the empty bytestring to terminate the TLS connection, or the :py:obj:`NO_OVERLAPPING_PROTOCOLS` to indicate that no offered protocol was selected, but that the connection should not be aborted. N) r¦rår rær“ZSSL_CTX_set_alpn_select_cbrÛr£rµ)rr r|r|r}Úset_alpn_select_callback§s ÿz Context.set_alpn_select_callbackcCsh||_|j|_|dur tj|_nt |¡|_t |j |j¡}t |dkƒt |j |j¡}t |dkƒdS)z© This internal helper does the common work for ``set_ocsp_server_callback`` and ``set_ocsp_client_callback``, which is almost all of it. Nr~)rçr rèr£rµréZ new_handler“ZSSL_CTX_set_tlsext_status_cbrÛrÙZSSL_CTX_set_tlsext_status_arg)rÚhelperr¸Úrcr|r|r}Ú_set_ocsp_callback¼s ÿzContext._set_ocsp_callbackcCst|ƒ}| ||¡dS)aû Set a callback to provide OCSP data to be stapled to the TLS handshake on the server side. :param callback: The callback function. It will be invoked with two arguments: the Connection, and the optional arbitrary data you have provided. The callback must return a bytestring that contains the OCSP data to staple to the handshake. If no OCSP data is available for this connection, return the empty bytestring. :param data: Some opaque data that will be passed into the callback function when called. 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N)r»rYrZr|r|r}Úset_ocsp_client_callbackâsz Context.set_ocsp_client_callback)N)N)N)N)N)Bryrzr{rˆr#r$r%r&r'r(r)r*r+r×ÚdictÚitemsrŽrðrñrõrùrürrÿrrrrrrrrrrrr!r#r'r(r)r+r,r-r0r1r5r9r:r<r=rAÚ_requires_keylogrCrErGrJrLrêrMrNÚ_requires_alpnrUrVrYr[r\r|r|r|r}ruts~ ÷þ( 0 # '# ruc@s eZdZeƒZdydd„Zdd„Zdd„Zdd „Zd d„Z dd „Z dd„Zdd„Zdzdd„Z e Zd{dd„Zd|dd„ZeZd}dd„Zdd„Zdd„Zdd „Zd!d"„Zd#d$„Zd%d&„Zd'd(„Zd)d*„Zd+d,„Zd-d.„Zd/d0„Zd1d2„Zd3d4„Zd5d6„Z d7d8„Z!d9d:„Z"d;d<„Z#d=d>„Z$d?d@„Z%dAdB„Z&dCdD„Z'dEdF„Z(dGdH„Z)d~dIdJ„Z*dKdL„Z+dMdN„Z,dOdP„Z-e.dQdR„ƒZ/dSdT„Z0dUdV„Z1dWdX„Z2dYdZ„Z3d[d\„Z4d]d^„Z5d_d`„Z6dadb„Z7dcdd„Z8dedf„Z9dgdh„Z:didj„Z;dkdl„Zdqdr„Z?e@dsdt„ƒZAe@dudv„ƒZBdwdx„ZCdS)rvNcCst|tƒstdƒ‚t |j¡}t |tj¡|_ t |j tj¡||_d|_d|_ |j|_|j|_||j|j <|durÐd|_t t ¡¡|_t|jtjkƒt t ¡¡|_t|jtjkƒt |j |j|j¡n2d|_d|_||_t |j t|jƒ¡}t|dkƒdS)zò Create a new Connection object, using the given OpenSSL.SSL.Context instance and socket. :param context: An SSL Context to use for this connection :param socket: The socket to use for transport layer ú"context must be a Context instanceNr~)rªrur¬r“ZSSL_newrÛr£rÚZSSL_freeÚ_sslZSSL_set_modeZSSL_MODE_AUTO_RETRYrär¯rßràr–Ú_socketZBIO_newZ BIO_s_memÚ _into_sslrÙrµÚ _from_sslZSSL_set_bioZ SSL_set_fdrÆ)rrìÚsocketrœrr|r|r}rŽús2 ÿzConnection.__init__cCs0|jdur td|jj|fƒ‚nt|j|ƒSdS)zy Look up attributes on the wrapped socket object if they are not found on the Connection object. 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If an error occurs, it's impossible to tell how much data has been sent. :param buf: The string, buffer or memoryview to send :param flags: (optional) Included for compatibility with the socket API, the value is ignored :return: The number of bytes written r"rrtN) rr£rur®r“rvrbÚminrm)rr"rwr¸Zleft_to_sendZ total_sentrr|r|r}Úsendall¼s ÿ zConnection.sendallcCs`td|ƒ}|dur.|tj@r.t |j||¡}nt |j||¡}| |j|¡t ||¡dd…S)a Receive data on the connection. :param bufsiz: The maximum number of bytes to read :param flags: (optional) The only supported flag is ``MSG_PEEK``, all other flags are ignored. :return: The string read from the Connection úchar[]N) Ú_no_zero_allocatorrfÚMSG_PEEKr“ÚSSL_peekrbÚSSL_readrmr£r©)rÚbufsizrwr"rr|r|r}ÚrecvÚs zConnection.recvcCsˆ|durt|ƒ}nt|t|ƒƒ}td|ƒ}|durN|tj@rNt |j||¡}nt |j||¡}| |j|¡t t ||¡ƒ|d|…<|S)ae Receive data on the connection and copy it directly into the provided buffer, rather than creating a new string. :param buffer: The buffer to copy into. :param nbytes: (optional) The maximum number of bytes to read into the buffer. 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N)r“ZSSL_do_handshakerbrm©rrr|r|r}Údo_handshake]szConnection.do_handshakecCst |j¡dkS)zÑ Check if there's a renegotiation in progress, it will return False once a renegotiation is finished. :return: Whether there's a renegotiation in progress :rtype: bool r~)r“ZSSL_renegotiate_pendingrbrŒr|r|r}rŠhszConnection.renegotiate_pendingcCst |j¡S)z‚ Find out the total number of renegotiations. :return: The number of renegotiations. :rtype: int )r“ZSSL_total_renegotiationsrbrŒr|r|r}Útotal_renegotiationsrszConnection.total_renegotiationscCst |j¡|j |¡S)a4 Call the :meth:`connect` method of the underlying socket and set up SSL on the socket, using the :class:`Context` object supplied to this :class:`Connection` object at creation. :param addr: A remote address :return: What the socket's connect method returns )r“ÚSSL_set_connect_staterbrcÚconnect)rÚaddrr|r|r}r{s zConnection.connectcCs|jj}| ¡||ƒS)a• Call the :meth:`connect_ex` method of the underlying socket and set up SSL on the socket, using the Context object supplied to this Connection object at creation. 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If this is a client connection, the list will be empty until the connection with the server is established. .. versionadded:: 0.10 )r“ZSSL_get_client_CA_listrbr£rµÚrangeZsk_X509_NAME_numZsk_X509_NAME_valuer6rÙrrHrÚr8r7r˜)rZca_namesrr™rÕrZpynamer|r|r}Úget_client_ca_listÐs zConnection.get_client_ca_listcOstdƒ‚dS)zœ The makefile() method is not implemented, since there is no dup semantics for SSL connections :raise: NotImplementedError z1Cannot make file object of OpenSSL.SSL.ConnectionNrÉ©rrËrÌr|r|r}ÚmakefileísÿzConnection.makefilecCs|jS)zr Retrieve application data as set by :meth:`set_app_data`. :return: The application data rDrŒr|r|r}rEøszConnection.get_app_datacCs ||_dS)zg Set application data :param data: The application data :return: None NrDrFr|r|r}rGszConnection.set_app_datacCst |j¡S)zž Get the shutdown state of the Connection. :return: The shutdown state, a bitvector of SENT_SHUTDOWN, RECEIVED_SHUTDOWN. )r“ZSSL_get_shutdownrbrŒr|r|r}Úget_shutdown szConnection.get_shutdowncCs$t|tƒstdƒ‚t |j|¡dS)z— Set the shutdown state of the Connection. :param state: bitvector of SENT_SHUTDOWN, RECEIVED_SHUTDOWN. :return: None zstate must be an integerN)rªr r¬r“ZSSL_set_shutdownrb)rÚstater|r|r}Úset_shutdowns zConnection.set_shutdowncCst t |j¡¡S)zš Retrieve a verbose string detailing the state of the Connection. :return: A string representing the state :rtype: bytes )r£rÇr“ZSSL_state_string_longrbrŒr|r|r}Úget_state_stringszConnection.get_state_stringcCsft |j¡}|tjkrdSt |jtjd¡}t|dkƒtd|ƒ}t |j||¡t ||¡dd…S)z Retrieve the random value used with the server hello message. :return: A string representing the state Nrr¨) r“ÚSSL_get_sessionrbr£rµZSSL_get_server_randomrÙr|r©©rÚsessionÚlengthÚoutpr|r|r}Ú server_random's zConnection.server_randomcCsft |j¡}|tjkrdSt |jtjd¡}t|dkƒtd|ƒ}t |j||¡t ||¡dd…S)z Retrieve the random value used with the client hello message. :return: A string representing the state Nrr¨) r“r¢rbr£rµZSSL_get_client_randomrÙr|r©r£r|r|r}Ú client_random6s zConnection.client_randomcCsbt |j¡}|tjkrdSt |tjd¡}t|dkƒtd|ƒ}t |||¡t ||¡dd…S)zz Retrieve the value of the master key for this session. :return: A string representing the state Nrr¨) r“r¢rbr£rµZSSL_SESSION_get_master_keyrÙr|r©r£r|r|r}Ú master_keyFs zConnection.master_keyc Csntd|ƒ}tj}d}d}|dur0|}t|ƒ}d}t |j|||t|ƒ|||¡}t|dkƒt ||¡dd…S)aH Obtain keying material for application use. :param: label - a disambiguating label string as described in RFC 5705 :param: olen - the length of the exported key material in bytes :param: context - a per-association context value :return: the exported key material bytes or None r¨rNr~) r|r£rµr®r“ZSSL_export_keying_materialrbrÙr©) rZlabelZolenrìr¦Zcontext_bufZcontext_lenZuse_contextÚsuccessr|r|r}Úexport_keying_materialVs( ø z!Connection.export_keying_materialcOs|jj|i|¤ŽS)z® Call the :meth:`shutdown` method of the underlying socket. 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Obtain the latest TLS Finished message that we received from the peer. :return: The contents of the message or :obj:`None` if the TLS handshake has not yet completed. :rtype: :class:`bytes` or :class:`NoneType` .. versionadded:: 0.15 )r¼r“ZSSL_get_peer_finishedrŒr|r|r}Úget_peer_finished6 s zConnection.get_peer_finishedcCs8t |j¡}|tjkrdSt t |¡¡}| d¡SdS)a Obtain the name of the currently used cipher. :returns: The name of the currently used cipher or :obj:`None` if no connection has been established. :rtype: :class:`unicode` or :class:`NoneType` .. versionadded:: 0.15 Núutf-8)r“ÚSSL_get_current_cipherrbr£rµrÇZSSL_CIPHER_get_namerþ)rÚcipherrÕr|r|r}Úget_cipher_nameB s zConnection.get_cipher_namecCs,t |j¡}|tjkrdSt |tj¡SdS)a. 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