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See `OpenSSL Verification Errors <https://www.openssl.org/docs/manmaster/man3/X509_verify_cert_error_string.html#ERROR-CODES>`_ for details. N)wr� r� r� �__doc__�_lib� X509_V_OK�OKZ$X509_V_ERR_UNABLE_TO_GET_ISSUER_CERTZ ERR_UNABLE_TO_GET_ISSUER_CERTZ X509_V_ERR_UNABLE_TO_GET_CRLZERR_UNABLE_TO_GET_CRLZ+X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATUREZ$ERR_UNABLE_TO_DECRYPT_CERT_SIGNATUREZ*X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATUREZ#ERR_UNABLE_TO_DECRYPT_CRL_SIGNATUREZ-X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEYZ&ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEYZ!X509_V_ERR_CERT_SIGNATURE_FAILUREZERR_CERT_SIGNATURE_FAILUREZ X509_V_ERR_CRL_SIGNATURE_FAILUREZERR_CRL_SIGNATURE_FAILUREZ X509_V_ERR_CERT_NOT_YET_VALIDZERR_CERT_NOT_YET_VALIDZX509_V_ERR_CERT_HAS_EXPIREDZERR_CERT_HAS_EXPIREDZ X509_V_ERR_CRL_NOT_YET_VALIDZERR_CRL_NOT_YET_VALIDZX509_V_ERR_CRL_HAS_EXPIREDZERR_CRL_HAS_EXPIREDZ)X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELDZ"ERR_ERROR_IN_CERT_NOT_BEFORE_FIELDZ(X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELDZ!ERR_ERROR_IN_CERT_NOT_AFTER_FIELDZ)X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELDZ"ERR_ERROR_IN_CRL_LAST_UPDATE_FIELDZ)X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELDZ"ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELDZX509_V_ERR_OUT_OF_MEMZERR_OUT_OF_MEMZ&X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERTZ ERR_DEPTH_ZERO_SELF_SIGNED_CERTZ$X509_V_ERR_SELF_SIGNED_CERT_IN_CHAINZ ERR_SELF_SIGNED_CERT_IN_CHAINZ,X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLYZ%ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLYZ*X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATUREZ#ERR_UNABLE_TO_VERIFY_LEAF_SIGNATUREZ X509_V_ERR_CERT_CHAIN_TOO_LONGZERR_CERT_CHAIN_TOO_LONGZX509_V_ERR_CERT_REVOKEDZERR_CERT_REVOKEDZX509_V_ERR_INVALID_CAZERR_INVALID_CAZ X509_V_ERR_PATH_LENGTH_EXCEEDEDZERR_PATH_LENGTH_EXCEEDEDZX509_V_ERR_INVALID_PURPOSEZERR_INVALID_PURPOSEZX509_V_ERR_CERT_UNTRUSTEDZERR_CERT_UNTRUSTEDZX509_V_ERR_CERT_REJECTEDZERR_CERT_REJECTEDZ"X509_V_ERR_SUBJECT_ISSUER_MISMATCHZERR_SUBJECT_ISSUER_MISMATCHZ X509_V_ERR_AKID_SKID_MISMATCHZERR_AKID_SKID_MISMATCHZ&X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCHZ ERR_AKID_ISSUER_SERIAL_MISMATCHZ X509_V_ERR_KEYUSAGE_NO_CERTSIGNZERR_KEYUSAGE_NO_CERTSIGNZ#X509_V_ERR_UNABLE_TO_GET_CRL_ISSUERZ ERR_UNABLE_TO_GET_CRL_ISSUERZ'X509_V_ERR_UNHANDLED_CRITICAL_EXTENSIONZ ERR_UNHANDLED_CRITICAL_EXTENSIONZ X509_V_ERR_KEYUSAGE_NO_CRL_SIGNZERR_KEYUSAGE_NO_CRL_SIGNZ+X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSIONZ$ERR_UNHANDLED_CRITICAL_CRL_EXTENSIONZX509_V_ERR_INVALID_NON_CAZERR_INVALID_NON_CAZ%X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDEDZ ERR_PROXY_PATH_LENGTH_EXCEEDEDZ(X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATUREZ!ERR_KEYUSAGE_NO_DIGITAL_SIGNATUREZ)X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWEDZ"ERR_PROXY_CERTIFICATES_NOT_ALLOWEDZ X509_V_ERR_INVALID_EXTENSIONZERR_INVALID_EXTENSIONZ#X509_V_ERR_INVALID_POLICY_EXTENSIONZ ERR_INVALID_POLICY_EXTENSIONZ X509_V_ERR_NO_EXPLICIT_POLICYZERR_NO_EXPLICIT_POLICYZ X509_V_ERR_DIFFERENT_CRL_SCOPEZERR_DIFFERENT_CRL_SCOPEZ(X509_V_ERR_UNSUPPORTED_EXTENSION_FEATUREZ!ERR_UNSUPPORTED_EXTENSION_FEATUREZ X509_V_ERR_UNNESTED_RESOURCEZERR_UNNESTED_RESOURCEZ X509_V_ERR_PERMITTED_VIOLATIONZERR_PERMITTED_VIOLATIONZ X509_V_ERR_EXCLUDED_VIOLATIONZERR_EXCLUDED_VIOLATIONZX509_V_ERR_SUBTREE_MINMAXZERR_SUBTREE_MINMAXZ&X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPEZ ERR_UNSUPPORTED_CONSTRAINT_TYPEZ(X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAXZ!ERR_UNSUPPORTED_CONSTRAINT_SYNTAXZ"X509_V_ERR_UNSUPPORTED_NAME_SYNTAXZERR_UNSUPPORTED_NAME_SYNTAXZ$X509_V_ERR_CRL_PATH_VALIDATION_ERRORZ ERR_CRL_PATH_VALIDATION_ERRORZ X509_V_ERR_HOSTNAME_MISMATCHZERR_HOSTNAME_MISMATCHZX509_V_ERR_EMAIL_MISMATCHZERR_EMAIL_MISMATCHZ X509_V_ERR_IP_ADDRESS_MISMATCHZERR_IP_ADDRESS_MISMATCHZ#X509_V_ERR_APPLICATION_VERIFICATIONZ ERR_APPLICATION_VERIFICATIONr� r� r� r� r� 5 s� ������������������ r� )z"/etc/ssl/certs/ca-certificates.crtz /etc/pki/tls/certs/ca-bundle.crtz/etc/ssl/ca-bundle.pemz/etc/pki/tls/cacert.pemz1/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pemz/etc/ssl/certss$ /opt/pyca/cryptography/openssl/certss' /opt/pyca/cryptography/openssl/cert.pemc @ s e Zd ZdZdS )rp z4 An error occurred in an `OpenSSL.SSL` API. N)r� r� r� r� r� r� r� r� rp � s rp c @ r� )r~ Nr� r� r� r� r� r~ � r� r~ c @ r� )r Nr� r� r� r� r� r � r� r c @ r� )r� Nr� r� r� r� r� r� � r� r� c @ r� )r� Nr� r� r� r� r� r� � r� r� c @ r� )rz Nr� r� r� r� r� rz � r� rz c @ s$ e Zd ZdZd dd�Zd dd�ZdS ) �_CallbackExceptionHelpera� A base class for wrapper classes that allow for intelligent exception handling in OpenSSL callbacks. :ivar list _problems: Any exceptions that occurred while executing in a context where they could not be raised in the normal way. Typically this is because OpenSSL has called into some Python code and requires a return value. The exceptions are saved to be raised later when it is possible to do so. �return�Nonec C s g | _ d S �N)� _problems��selfr� r� r� �__init__� s z!_CallbackExceptionHelper.__init__c C s4 | j rzt� W n ty Y nw | j �d��dS )z� Raise an exception from the OpenSSL error queue or that was previously captured whe running a callback. r N)r� �_raise_current_errorrp �popr� r� r� r� �raise_if_problem� s � �z)_CallbackExceptionHelper.raise_if_problemN�r� r� )r� r� r� r� r� r� r� r� r� r� r� � s r� c @ � e Zd ZdZd dd�ZdS ) � _VerifyHelperz^ Wrap a callback such that it can be used as a certificate verification callback. �callback�_VerifyCallbackr� r� c �2 t ��� t� �� �fdd��}t�d|��_d S )Nc s� t �|�}t �|� t�|�}t �|�}t �|�}t �� }t �||�}t j | }z � ||||| �} W n t yK } z �j � | � W Y d } ~ dS d } ~ ww | rWt �|t j� dS dS )Nr � )r� Z X509_STORE_CTX_get_current_cert� X509_up_refr �_from_raw_x509_ptrZX509_STORE_CTX_get_errorZ X509_STORE_CTX_get_error_depthZ"SSL_get_ex_data_X509_STORE_CTX_idxZX509_STORE_CTX_get_ex_datarn �_reverse_mapping� Exceptionr� �appendZX509_STORE_CTX_set_errorr� ) �okZ store_ctxr �certZ error_numberZ error_depth�index�ssl� connection�result�e�r� r� r� r� �wrapper� s* � ��z'_VerifyHelper.__init__.<locals>.wrapperz int (*)(int, X509_STORE_CTX *)�r� r� r �_ffir� �r� r� r� r� r� r� r� � s �z_VerifyHelper.__init__N)r� r� r� r� �r� r� r� r� r� r� r� r� r� r� � s r� c @ r� ) �_ALPNSelectHelperzQ Wrap a callback such that it can be used as an ALPN selection callback. r� �_ALPNSelectCallbackr� r� c r� )Nc s zpt j| }t�||�d d � }g }|r/|d } |d| d � } |�| � || d d � }|s� ||�} d} | tu r?d} d} n t| t�sHtd��t� dt | ��t� d| �g|_ |j d d |d< |j d |d< | smt j W S t jW S ty� } z�j�| � t jW Y d } ~ S d } ~ ww ) Nr r� T� Fz^ALPN callback must return a bytestring or the special NO_OVERLAPPING_PROTOCOLS sentinel value.zunsigned char *�unsigned char[])rn r� r� �bufferr� r% � isinstance�bytes� TypeError�new�len�_alpn_select_callback_argsr� ZSSL_TLSEXT_ERR_NOACKZSSL_TLSEXT_ERR_OKr� r� �SSL_TLSEXT_ERR_ALERT_FATAL)r� �out�outlenZin_Zinlen�arg�connZinstrZ protolistZ encoded_len�protoZoutbytesZ any_acceptedr� r� r� r� r� s@ � � � ��z+_ALPNSelectHelper.__init__.<locals>.wrapperz^int (*)(SSL *, unsigned char **, unsigned char *, const unsigned char *, unsigned int, void *)r� r� r� r� r� r� s + �z_ALPNSelectHelper.__init__N�r� r� r� r� r� r� r� r� r� r� s r� c @ r� ) �_OCSPServerCallbackHelpera� Wrap a callback such that it can be used as an OCSP callback for the server side. Annoyingly, OpenSSL defines one OCSP callback but uses it in two different ways. For servers, that callback is expected to retrieve some OCSP data and hand it to OpenSSL, and may return only SSL_TLSEXT_ERR_OK, SSL_TLSEXT_ERR_FATAL, and SSL_TLSEXT_ERR_NOACK. For clients, that callback is expected to check the OCSP data, and returns a negative value on error, 0 if the response is not acceptable, or positive if it is. These are mutually exclusive return code behaviours, and they mean that we need two helpers so that we always return an appropriate error code if the user's code throws an exception. Given that we have to have two helpers anyway, these helpers are a bit more helpery than most: specifically, they hide a few more of the OpenSSL functions so that the user has an easier time writing these callbacks. This helper implements the server side. r� �_OCSPServerCallback[Any]r� r� c r� )Nc s� zBt j| }|tjkrt�|�}nd }� ||�}t|t�s!td��|s&W dS t|�}t � |�}|t� ||�d d �< t � | ||� W dS t y[ } z �j�|� W Y d }~dS d }~ww )Nz'OCSP callback must return a bytestring.r� r � )rn r� r� �NULL� from_handler� r� r� r� r� ZOPENSSL_mallocr� Z SSL_set_tlsext_status_ocsp_respr� r� r� )r� �cdatar� �data� ocsp_dataZocsp_data_lengthZdata_ptrr� r� r� r� r� j s, � ��z3_OCSPServerCallbackHelper.__init__.<locals>.wrapper�int (*)(SSL *, void *)r� r� r� r� r� r� g s &z"_OCSPServerCallbackHelper.__init__N)r� r� r� r� r� r� r� r� r� r� Q � r� c @ r� ) �_OCSPClientCallbackHelpera� Wrap a callback such that it can be used as an OCSP callback for the client side. Annoyingly, OpenSSL defines one OCSP callback but uses it in two different ways. For servers, that callback is expected to retrieve some OCSP data and hand it to OpenSSL, and may return only SSL_TLSEXT_ERR_OK, SSL_TLSEXT_ERR_FATAL, and SSL_TLSEXT_ERR_NOACK. For clients, that callback is expected to check the OCSP data, and returns a negative value on error, 0 if the response is not acceptable, or positive if it is. These are mutually exclusive return code behaviours, and they mean that we need two helpers so that we always return an appropriate error code if the user's code throws an exception. Given that we have to have two helpers anyway, these helpers are a bit more helpery than most: specifically, they hide a few more of the OpenSSL functions so that the user has an easier time writing these callbacks. 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This method has some caveats related to the binary wheels that cryptography (pyOpenSSL's primary dependency) ships: * macOS will only load certificates using this method if the user has the ``openssl@3`` `Homebrew <https://brew.sh>`_ formula installed in the default location. * Windows will not work. * manylinux cryptography wheels will work on most common Linux distributions in pyOpenSSL 17.1.0 and above. pyOpenSSL detects the manylinux wheel and attempts to load roots via a fallback path. :return: None r� � SSL_CERT_DIR� SSL_CERT_FILEN)r� Z SSL_CTX_set_default_verify_pathsr! r �_check_env_vars_setr� r� ZX509_get_default_cert_dirZX509_get_default_cert_file� _CRYPTOGRAPHY_MANYLINUX_CA_DIR� _CRYPTOGRAPHY_MANYLINUX_CA_FILE� _fallback_default_verify_paths�_CERTIFICATE_FILE_LOCATIONS�_CERTIFICATE_PATH_LOCATIONS)r� � set_resultZ default_dirZ default_filer� r� r� �set_default_verify_paths! s ��z Context.set_default_verify_paths� dir_env_varr � file_env_varr� c C s t j�|�dupt j�|�duS )zp Check to see if the default cert dir/file environment vars are present. :return: bool N)�os�environ�get)r� rS rT r� r� r� rK L s �zContext._check_env_vars_set� file_path� list[str]�dir_pathc C sP |D ]}t j�|�r| �|� nq|D ]}t j�|�r%| �d|� dS qdS )aV Default verify paths are based on the compiled version of OpenSSL. 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Note this API does not change the cipher suites used in TLS 1.3 Use `set_tls13_ciphersuites` for that. :param bytes cipher_list: An OpenSSL cipher string. :return: None r� z"cipher_list must be a byte string.r� N)r| r� r� r� r r� ZSSL_CTX_set_cipher_listr! )r� r� r� r� r� �set_cipher_list� s �zContext.set_cipher_list� ciphersuitesc C �, t |t�s td��tt�| j|�dk� dS )a� Set the list of TLS 1.3 ciphers to be used in this context. OpenSSL maintains a separate list of TLS 1.3+ ciphers to ciphers for TLS 1.2 and lowers. See the OpenSSL manual for more information (e.g. :manpage:`ciphers(1)`). :param bytes ciphersuites: An OpenSSL cipher string containing TLS 1.3+ ciphersuites. :return: None .. versionadded:: 25.2.0 z#ciphersuites must be a byte string.r� N)r� r� r� r r� ZSSL_CTX_set_ciphersuitesr! )r� r� r� r� r� �set_tls13_ciphersuites� s �z Context.set_tls13_ciphersuites�certificate_authorities�Sequence[X509Name]c C s� t �� }t|tjk� z4|D ]/}t|t�s tdt|�j � d���t � |j �}t|tjk� t � ||�}|s=t � |� t� qW n tyL t �|� � w t �| j|� dS )a_ Set the list of preferred client certificate signers for this server context. This list of certificate authorities will be sent to the client when the server requests a client certificate. :param certificate_authorities: a sequence of X509Names. :return: None .. versionadded:: 0.10 z)client CAs must be X509Name objects, not z objectsN)r� Zsk_X509_NAME_new_nullr r� r� r� r r� r� r� � X509_NAME_dup�_nameZsk_X509_NAME_push�X509_NAME_freer� r� Zsk_X509_NAME_freer} r! )r� r� Z name_stackZca_namern Z push_resultr� r� r� �set_client_ca_list� s. �� �� �zContext.set_client_ca_list�certificate_authorityc C sF t |t�s t�|�}ntjdtdd� t�| j|j �}t |dk� dS )ai Add the CA certificate to the list of preferred signers for this context. The list of certificate authorities will be sent to the client when the server requests a client certificate. :param certificate_authority: certificate authority's X509 certificate. :return: None .. versionadded:: 0.10 rh r� r r� N) r� r ri r r r r� ZSSL_CTX_add_client_CAr! rj r )r� r� ro r� r� r� � add_client_ca$ s �� �zContext.add_client_ca�timeoutc C r� )aQ Set the timeout for newly created sessions for this Context object to *timeout*. The default value is 300 seconds. See the OpenSSL manual for more information (e.g. :manpage:`SSL_CTX_set_timeout(3)`). :param timeout: The timeout in (whole) seconds :return: The previous session timeout ztimeout must be an integer)r� r� r� r� ZSSL_CTX_set_timeoutr! )r� r� r� r� r� � set_timeoutG s zContext.set_timeoutc C r� )z� Retrieve session timeout, as set by :meth:`set_timeout`. The default is 300 seconds. :return: The session timeout )r� ZSSL_CTX_get_timeoutr! r� r� r� r� � get_timeoutV r� zContext.get_timeout�&Callable[[Connection, int, int], None]c �6 t � �� fdd��}t�d|�| _t�| j| j� dS )�� Set the information callback to *callback*. This function will be called from time to time during SSL handshakes. :param callback: The Python callback to use. This should take three arguments: a Connection object and two integers. The first integer specifies where in the SSL handshake the function was called, and the other the return code from a (possibly failed) internal function call. :return: None c � � t j| ||� d S r� �rn r� �r� �whereZ return_code�r� r� r� r� o � z*Context.set_info_callback.<locals>.wrapper� void (*)(const SSL *, int, int)N)r r� r� r' r� ZSSL_CTX_set_info_callbackr! r� r� r� r� �set_info_callback_ s �zContext.set_info_callback�#Callable[[Connection, bytes], None]c r� )a Set the TLS key logging callback to *callback*. This function will be called whenever TLS key material is generated or received, in order to allow applications to store this keying material for debugging purposes. :param callback: The Python callback to use. 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 c s t �|�}� tj| |� d S r� )r� r� rn r� )r� �liner� r� r� r� � s z,Context.set_keylog_callback.<locals>.wrapperz#void (*)(const SSL *, const char *)N)r r� r� r( r� ZSSL_CTX_set_keylog_callbackr! r� r� r� r� �set_keylog_callbackx s �zContext.set_keylog_callbackr c C � | j S )zw Get the application data (supplied via :meth:`set_app_data()`) :return: The application data �r* r� r� r� r� � get_app_data� � zContext.get_app_datar� c C � || _ dS )z� Set the application data (will be returned from get_app_data()) :param data: Any Python object :return: None Nr� �r� r� r� r� r� � set_app_data� s zContext.set_app_data�X509Store | Nonec C s. t �| j�}|tjkr dS t�t�}||_|S )z� 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_storer! r� r� r �__new__Z_store)r� �storeZpystorer� r� r� �get_cert_store� s zContext.get_cert_store�optionsc C r� )z� 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)r� r� r� r� ZSSL_CTX_set_optionsr! )r� r� r� r� r� � set_options� � zContext.set_optionsc C r� )z� 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� )r� r� r� r� ZSSL_CTX_set_moder! r� r� r� r� r2 � r� zContext.set_mode� mode_to_clearc C s t �| j|�S )z� Modes previously set cannot be overwritten without being cleared first. 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It will be invoked with one argument, the Connection instance. .. versionadded:: 0.13 c s< z � t j| � W dS ty tjt�� � tj Y S w r� )rn r� r� �sys� excepthook�exc_infor� r� )r� Zalertr� r� r� r� r� � s � �z7Context.set_tlsext_servername_callback.<locals>.wrapperz int (*)(SSL *, int *, void *)N)r r� r� r) r� Z&SSL_CTX_set_tlsext_servername_callbackr! r� r� r� r� � set_tlsext_servername_callback� s ��z&Context.set_tlsext_servername_callback�profilesc C r� )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 z profiles must be a byte string.r N)r� r� r� r r� ZSSL_CTX_set_tlsext_use_srtpr! )r� r� r� r� r� �set_tlsext_use_srtp� s �zContext.set_tlsext_use_srtp�protos� list[bytes]c C �R |st d��d�t�dd� |D ���}t�d|�}tt�| j |t |��dk� dS )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']``. �'at least one protocol must be specifiedr� c s �" � | ] }t t|�f�|fV qd S r� �r� r� ��.0�pr� r� r� � <genexpr> � � z*Context.set_alpn_protos.<locals>.<genexpr>r� r N) r� �joinr � from_iterabler� r� r r� ZSSL_CTX_set_alpn_protosr! r� �r� r� ZprotostrZ input_strr� r� r� �set_alpn_protos s � ���zContext.set_alpn_protosr� c C s, t |�| _| jj| _t�| j| jtj� dS )a� 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� r+ r� r, r� ZSSL_CTX_set_alpn_select_cbr! r� r� �r� r� r� r� r� �set_alpn_select_callback/ s �z Context.set_alpn_select_callback�helper�5_OCSPClientCallbackHelper | _OCSPServerCallbackHelper� Any | Nonec C sh || _ |j| _|du rtj| _nt�|�| _t�| j | j�}t |dk� t� | j | j�}t |dk� dS )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� ) r- r� r. r� r� r/ Z new_handler� Z SSL_CTX_set_tlsext_status_cbr! r Z SSL_CTX_set_tlsext_status_arg)r� r� r� �rcr� r� r� �_set_ocsp_callbackD s � zContext._set_ocsp_callback�_OCSPServerCallback[_T]c C � t |�}| �||� dS )a� 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. This can be used to avoid needing to do complex data lookups or to keep track of what context is being used. This parameter is optional. N)r� r� �r� r� r� r� r� r� r� �set_ocsp_server_callback\ s z Context.set_ocsp_server_callback�_OCSPClientCallback[_T]c C r� )a� Set a callback to validate OCSP data stapled to the TLS handshake on the client side. :param callback: The callback function. It will be invoked with three arguments: the Connection, a bytestring containing the stapled OCSP assertion, and the optional arbitrary data you have provided. The callback must return a boolean that indicates the result of validating the OCSP data: ``True`` if the OCSP data is valid and the certificate can be trusted, or ``False`` if either the OCSP data is invalid or the certificate has been revoked. :param data: Some opaque data that will be passed into the callback function when called. This can be used to avoid needing to do complex data lookups or to keep track of what context is being used. This parameter is optional. N)r� r� r� r� r� r� �set_ocsp_client_callbacks s z Context.set_ocsp_client_callbackr� c C � t |�| _t�| j| jj� d S r� )r� r0 r� Z SSL_CTX_set_cookie_generate_cbr! r� r� r� r� r� � set_cookie_generate_callback� � �z$Context.set_cookie_generate_callbackr� c C r� r� )r� r1 r� Z SSL_CTX_set_cookie_verify_cbr! r� r� r� r� r� �set_cookie_verify_callback� r� z"Context.set_cookie_verify_callback)r r� r� r� )r5 r� r� r� r� )r: r; r< r; r� r� )r� r? r� r )r� r? rB rE r� r� r� )rS r rT r r� r� )rX rY rZ rY r� r� )r^ r_ r� r� )r^ r_ ra r� r� r� �r� re r� r� )rm re r� r� )rr r_ ra r� r� r� �rt ru r� r� )r: r� r� r� )r r� r� r� )r� r� r� r� �r� r� �r� r� r� r� r� r� )r� r� r� r� )r� r_ r� r� )r� r� r� r� )r� r� r� r� )r� r� r� r� )r� r� r� r� )r� re r� r� )r� r� r� r� �r� r� r� r� )r� r� r� r� �r� r �r� r r� r� )r� r� )r� r� r� r� )r� r� r� r� )r� r� r� r� )r� r� r� r� �r� r� r� r� r� )r� r� r� r� r� r� )r� r� r� rE r� r� )r� r� r� rE r� r� r� r� )Pr� r� r� r� rx r� Z TLS_methodr} rf r{ rc r| rd rh ri ZTLS_server_methodrg ZTLS_client_methodr" Z DTLS_methodr# ZDTLS_server_methodr! ZDTLS_client_methodr r r� r r3 r4 r> rD rH rR rK rN r` r rd rl rp rq rs rz r{ r~ r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� �_requires_keylogr� r� r� r� r� r2 r� r� r� r� r� r� r� r� �_requires_ssl_cookier� r� r� r� r� r� ro h s� � � 1 � $ �! * � � �% ' % " % �� ro c @ s e Zd ZU e� Zded< d�d�d d �Zd�dd�Zd�dd�Zd�dd�Z d�dd�Z d�dd �Z d�d�d d!�Z d�d"d#�Z d�d&d'�Zd�d*d+�Zd�d-d.�Zd�d/d0�Zd�d2d3�Zd�d4d5�Zd�d�d:d;�ZeZd�d�d<d=�Zd�d�d@dA�ZeZ d�d�dDdE�Zd�dHdI�Zd�dJdK�Zd�dLdM�Z d�dOdP�Z d�dQdR�Z d�dSdT�Z d�dUdV�Z d�dXdY�Z!d�dZd[�Z"d�d]d^�Z#d�d_d`�Z$d�dadb�Z%d�dcdd�Z&d�dedf�Z'd�dgdh�Z(d�djdk�Z)d�dmdn�Z*d�dqdr�Z+d�dsdt�Z,d�dvdw�Z-d�dxdy�Z.d�d{d|�Z/�d d}d~�Z0d�dd��Z1d�d�d��Z2d�d�d��Z3 dߐdd�d��Z4�dd�d��Z5e6j7�dd�d���Z8e6j7d�d���dd�d���Z8d�d���dd�d��Z8e6j7�dd�d���Z9e6j7d�d���dd�d���Z9d�d���dd�d��Z9e:�dd�d���Z;e:�dd�d���Z<e6j7�dd�d���Z=e6j7d�d���d d�d���Z=d�d���d d�d��Z=e6j7�dd�d���Z>e6j7d�d���d d�d���Z>d�d���d d�d��Z>d�d�d��Z?d�d�d��Z@d�d�d��ZAd�d�d��ZB�d d�d��ZC�d d�d��ZD�d d�d��ZEd�d�dZFd�d�dĄZG�dd�dDŽZHd�d�dɄZI�dd�d˄ZJ�dd�d̈́ZKd�d�dτZL�dd�dӄZM�d d�dՄZN�d d�dׄZOeP�dd�dل�ZQd�d�dۄZR�dd�dބZSdS ( rn z&typing.MutableMapping[Any, Connection]r� Nr6 ro �socket�socket.socket | Noner� r� c C s t |t�s td��d|_t�|j�}t�|tj �| _ t� | j tj � || _d| _ d| _|j| _|j| _|j| _|j| _| | j| j < |du rtd| _t�t�� �| _t| jtjk� t�t�� �| _t| jtjk� t�| j | j| j� dS d| _d| _|| _t� | j t | j��}t|dk� dS )z� Create a new Connection object, using the given OpenSSL.SSL.Context instance and socket. :param context: An SSL Context to use for this connection :param socket: The socket to use for transport layer �"context must be a Context instanceTNr� ) r� ro r� r r� ZSSL_newr! r� r ZSSL_free�_sslZ SSL_set_modeZSSL_MODE_AUTO_RETRYr* r� r% r& r0 r1 r� �_socketZBIO_newZ BIO_s_mem� _into_sslr r� � _from_sslZ SSL_set_bioZ SSL_set_fdr� )r� r6 r� r� rQ r� r� r� r� � s8 �zConnection.__init__r� r r c C s0 | j du rtd| jj� d|� d���t| j |�S )zy Look up attributes on the wrapped socket object if they are not found on the Connection object. N�'z' object has no attribute ')r �AttributeError� __class__r� r� �r� r� r� r� r� � __getattr__� s � zConnection.__getattr__r� r� r� c C sr | j jd ur | j j�� | j jd ur| j j�� | j jd ur$| j j�� t�||�}|tjkr2t� �|tj kr:t � �|tj krBt � �|tj krJt� �|tjkr�tdkrZt�� d }ntj}t�� dksg|dkr||dk rw|dkrwt|t�|���tdd��t� d S |tjkr�t�� dkr�t�� }t�|�}tjr�t |tj k� t� � tdd��t� d S |tj kr�d S t� d S )N�win32r r� zUnexpected EOF) r! r% r� r+ r- r� Z SSL_get_error�SSL_ERROR_WANT_READr~ �SSL_ERROR_WANT_WRITEr �SSL_ERROR_ZERO_RETURNr� �SSL_ERROR_WANT_X509_LOOKUPr� �SSL_ERROR_SYSCALLr r� Z getwinerror�errnoZERR_peek_errorrz r rW r� � SSL_ERROR_SSLZERR_GET_REASONZ-Cryptography_HAS_UNEXPECTED_EOF_WHILE_READINGr Z"SSL_R_UNEXPECTED_EOF_WHILE_READINGZERR_clear_errorZSSL_ERROR_NONE)r� r� r� r� r Z peeked_error�reasonr� r� r� �_raise_ssl_error� sJ � zConnection._raise_ssl_errorc C r� )zh Retrieve the :class:`Context` object associated with this :class:`Connection`. )r! r� r� r� r� � get_context' s zConnection.get_contextc C s4 t |t�s td��t�| j|j� || _d| j_dS )z� Switch this connection to a new session context. :param context: A :class:`Context` instance giving the new session context to use. r� TN)r� ro r� r� ZSSL_set_SSL_CTXr� r! r )r� r6 r� r� r� � set_context. s zConnection.set_context� bytes | Nonec C s( t �| jt j�}|tjkrdS t�|�S )z� Retrieve the servername extension value if provided in the client hello message, or None if there wasn't one. :return: A byte string giving the server name or :data:`None`. .. versionadded:: 0.13 N)r� ZSSL_get_servernamer� ZTLSEXT_NAMETYPE_host_namer� r� r� r r� r� r� �get_servername< s � zConnection.get_servernamer� r� r� c C r� )z� Override the Context object's verification flags for this specific connection. See :py:meth:`Context.set_verify` for details. r� NrF ) r� r� r� r% r& r� ZSSL_set_verifyr� r� r� rG r� r� r� r� r� r� r� M s zConnection.set_verifyc C r� )z� Retrieve the Connection object's verify mode, as set by :meth:`set_verify`. :return: The verify mode )r� ZSSL_get_verify_moder� r� r� r� r� r� c r� zConnection.get_verify_moder� re c C rf rg ) r� r ri r r r r� ZSSL_use_certificater� rj r� rk r� r� r� rl l s � �zConnection.use_certificatert ru c C sL t |t�s t�|�}ntjdtdd� t�| j|j �}|s$| j � � dS dS rv ) r� r rw r r r r� ZSSL_use_PrivateKeyr� rx r! rq ry r� r� r� rz � s � �zConnection.use_privatekey�mtuc C s t �| j|� dS )aK For DTLS, set the maximum UDP payload size (*not* including IP/UDP overhead). Note that you might have to set :data:`OP_NO_QUERY_MTU` to prevent OpenSSL from spontaneously clearing this. :param mtu: An integer giving the maximum transmission unit. .. versionadded:: 21.1 N)r� Z SSL_set_mtur� )r� r r� r� r� �set_ciphertext_mtu� s z Connection.set_ciphertext_mtuc C s t td�s td��t�| j�S )a For DTLS, get the maximum size of unencrypted data you can pass to :meth:`write` without exceeding the MTU (as passed to :meth:`set_ciphertext_mtu`). :return: The effective MTU as an integer. .. versionadded:: 21.1 �DTLS_get_data_mtuz requires OpenSSL 1.1.1 or better)�hasattrr� r r r� r� r� r� r� �get_cleartext_mtu� s z Connection.get_cleartext_mtur� c C s4 t |t�s td��d|v rtd��t�| j|� dS )z� Set the value of the servername extension to send in the client hello. :param name: A byte string giving the name. .. versionadded:: 0.13 zname must be a byte string� z name must not contain NUL byteN)r� r� r� r� ZSSL_set_tlsext_host_namer� r r� r� r� �set_tlsext_host_name� s z Connection.set_tlsext_host_namec C r� )z� Get the number of bytes that can be safely read from the SSL buffer (**not** the underlying transport buffer). :return: The number of bytes available in the receive buffer. )r� Z SSL_pendingr� r� r� r� r� �pending� r� zConnection.pendingr r �_Buffer�flagsc C sr t d|�}t�|��%}t|�dkrtd��t�| j|t|��}| �| j|� |W d � S 1 s2w Y dS )a� Send data on the connection. NOTE: If you get one of the WantRead, WantWrite or WantX509Lookup exceptions on this, you have to call the method again with the SAME buffer. :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 ��z,Cannot send more than 2**31-1 bytes at once.N) r| r� � from_bufferr� r� r� � SSL_writer� r )r� r r r� r� r� r� r� �send� s �$�zConnection.sendc C s� t d|�}t�|��0}t|�}d}|r1t�| j|| t|d��}| �| j|� ||7 }||8 }|s|W d � S 1 s=w Y dS )a� Send "all" data on the connection. This calls send() repeatedly until all data is sent. 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 r r N) r| r� r! r� r� r" r� �minr )r� r r r� Z left_to_send� total_sentr� r� r� r� �sendall� s �� $�zConnection.sendall�bufsizr� c C s` t d|�}|dur|tj@ rt�| j||�}nt�| j||�}| �| j|� t� ||�dd� S )a Receive data on the connection. :param bufsiz: The maximum number of bytes to read :param flags: (optional) The only supported flag is ``MSG_PEEK``, all other flags are ignored. :return: The string read from the Connection �char[]N) �_no_zero_allocatorr� �MSG_PEEKr� �SSL_peekr� �SSL_readr r� r� )r� r' r r r� r� r� r� �recv s zConnection.recvr� �nbytesc C s� |du r t |�}nt|t |��}td|�}|dur'|tj@ r't�| j||�}nt�| j||�}| � | j|� t t � ||��|d|�< |S )ae Receive data on the connection and copy it directly into the provided buffer, rather than creating a new string. :param buffer: The buffer to copy into. :param nbytes: (optional) The maximum number of bytes to read into the buffer. If not present, defaults to the size of the buffer. If larger than the size of the buffer, is reduced to the size of the buffer. :param flags: (optional) The only supported flag is ``MSG_PEEK``, all other flags are ignored. :return: The number of bytes read into the buffer. Nr( ) r� r$ r) r� r* r� r+ r� r, r � memoryviewr� r� )r� r� r. r r r� r� r� r� � recv_into s zConnection.recv_intor� �typing.NoReturnc C sN t �|�r"t �|�r t� �t �|�rt� �t �|�r td��td��t� d S )N�BIO_should_io_specialzunknown bio failure) r� ZBIO_should_retryZBIO_should_readr~ ZBIO_should_writer r2 r� r� )r� r� r� r� r� r� �_handle_bio_errorsH s z Connection._handle_bio_errorsc C sh | j du r td��t|t�std��td|�}t�| j ||�}|dkr*| �| j |� t� ||�dd� S )a� If the Connection was created with a memory BIO, this method can be used to read bytes from the write end of that memory BIO. Many Connection methods will add bytes which must be read in this manner or the buffer will eventually fill up and the Connection will be able to take no further actions. :param bufsiz: The maximum number of bytes to read :return: The string read. N� Connection sock was not Nonezbufsiz must be an integerr( r ) r r� r� r� r) r� ZBIO_readr3 r� r� )r� r' r r� r� r� r� �bio_readZ s zConnection.bio_readc C sx t d|�}| jdu rtd��t�|�� }t�| j|t|��}|dkr)| �| j|� |W d � S 1 s5w Y dS )aj If the Connection was created with a memory BIO, this method can be used to add bytes to the read end of that memory BIO. The Connection can then read the bytes (for example, in response to a call to :meth:`recv`). :param buf: The string to put into the memory BIO. :return: The number of bytes written r Nr4 r ) r| r r� r� r! r� Z BIO_writer� r3 )r� r r� r� r� r� r� � bio_writer s $�zConnection.bio_writer� c C s$ | � � stt�| j�dk� dS dS )zv Renegotiate the session. :return: True if the renegotiation can be started, False otherwise r� TF)�renegotiate_pendingr r� ZSSL_renegotiater� r� r� r� r� � renegotiate� s zConnection.renegotiatec C s t �| j�}| �| j|� dS )a Perform an SSL handshake (usually called after :meth:`renegotiate` or one of :meth:`set_accept_state` or :meth:`set_connect_state`). This can raise the same exceptions as :meth:`send` and :meth:`recv`. :return: None. N)r� ZSSL_do_handshaker� r �r� r� r� r� r� � do_handshake� s zConnection.do_handshakec C s t �| j�dkS )z� 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 r� )r� ZSSL_renegotiate_pendingr� r� r� r� r� r7 � � z Connection.renegotiate_pendingc C r� )zn Find out the total number of renegotiations. :return: The number of renegotiations. )r� ZSSL_total_renegotiationsr� r� r� r� r� �total_renegotiations� s z Connection.total_renegotiations�addrc C s t �| 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� �SSL_set_connect_stater� r �connect)r� r= r� r� r� r? � s zConnection.connectc C s | j j}| �� ||�S )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. Note that if the :meth:`connect_ex` method of the socket doesn't return 0, SSL won't be initialized. :param addr: A remove address :return: What the socket's connect_ex method returns )r � connect_ex�set_connect_state)r� r= r@ r� r� r� r@ � s zConnection.connect_ex�tuple[Connection, Any]c C s* | j �� \}}t| j|�}|�� ||fS )a� Call the :meth:`accept` method of the underlying socket and set up SSL on the returned socket, using the Context object supplied to this :class:`Connection` object at creation. :return: A *(conn, addr)* pair where *conn* is the new :class:`Connection` object created, and *address* is as returned by the socket's :meth:`accept`. )r �acceptrn r! �set_accept_state)r� �clientr= r� r� r� r� rC � s zConnection.acceptc C s� t �� }zt �| j|�}W t �|� nt �|� w | jdur#| j�� | jdur-| j�� |dkr4t� �|dk rA| � | j|� dS dS )z� Call the OpenSSL function DTLSv1_listen on this connection. See the OpenSSL manual for more details. :return: None Nr ) r� Z BIO_ADDR_new� DTLSv1_listenr� Z BIO_ADDR_freer0 r� r1 r~ r )r� Zbio_addrr� r� r� r� rF � s �zConnection.DTLSv1_listenc C s< t �d�}t �d�}t�| j||�r |d |d d S dS )a} Determine when the DTLS SSL object next needs to perform internal processing due to the passage of time. When the returned number of seconds have passed, the :meth:`DTLSv1_handle_timeout` method needs to be called. :return: The time left in seconds before the next timeout or `None` if no timeout is currently active. ztime_t *zlong *r i@B N)r� r� r� Z Cryptography_DTLSv1_get_timeoutr� )r� Zptv_secZptv_usecr� r� r� �DTLSv1_get_timeout� s z Connection.DTLSv1_get_timeoutc C s2 t �| j�}|dk r| �| j|� J d��t|�S )z� Handles any timeout events which have become pending on a DTLS SSL object. :return: `True` if there was a pending timeout, `False` otherwise. r F� unreachable)r� �DTLSv1_handle_timeoutr� r r� r9 r� r� r� rI s z Connection.DTLSv1_handle_timeoutc C s$ | j du r td��t�| jd� dS )z� If the Connection was created with a memory BIO, this method can be used to indicate that *end of file* has been reached on the read end of that memory BIO. :return: None Nr4 r )r r� r� ZBIO_set_mem_eof_returnr r� r� r� r� � bio_shutdown s zConnection.bio_shutdownc C s: t �| j�}|dk r| �| j|� J d��|dkrdS dS )aQ Send the shutdown message to the Connection. :return: True if the shutdown completed successfully (i.e. both sides have sent closure alerts), False otherwise (in which case you call :meth:`recv` or :meth:`send` when the connection becomes readable/writeable). r FrH T)r� Z SSL_shutdownr� r r9 r� r� r� �shutdown s zConnection.shutdownrY c C sH g }t � D ] }t�| j|�}|tjkr |S |�t�|��d�� q|S )z� Retrieve the list of ciphers used by the Connection object. :return: A list of native cipher strings. �utf-8) r r� ZSSL_get_cipher_listr� r� r� r� r� �decode)r� �ciphersr� r� r� r� r� �get_cipher_list0 s �zConnection.get_cipher_list�list[X509Name]c C s~ t �| j�}|tjkr g S g }tt �|��D ]&}t �||�}t �|�}t |tjk� t � t �}t� |t j �|_|�|� q|S )a� Get CAs whose certificates are suggested for client authentication. :return: If this is a server connection, the list of certificate authorities that will be sent or has been sent to the client, as controlled by this :class:`Connection`'s :class:`Context`. 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_listr� r� r� �rangeZsk_X509_NAME_numZsk_X509_NAME_valuer� r r r� r r� r� r� )r� Zca_namesr� r� r� rn Zpynamer� r� r� �get_client_ca_list> s z Connection.get_client_ca_listr r c O s t d��)z� The makefile() method is not implemented, since there is no dup semantics for SSL connections :raise: NotImplementedError z1Cannot make file object of OpenSSL.SSL.Connectionr r r� r� r� �makefile[ s �zConnection.makefilec C r� )zr Retrieve application data as set by :meth:`set_app_data`. :return: The application data r� r� r� r� r� r� f r� zConnection.get_app_datar� c C r� )zg Set application data :param data: The application data :return: None Nr� r� r� r� r� r� n s zConnection.set_app_datac C r� )z� Get the shutdown state of the Connection. :return: The shutdown state, a bitvector of SENT_SHUTDOWN, RECEIVED_SHUTDOWN. )r� ZSSL_get_shutdownr� r� r� r� r� � get_shutdownw r� zConnection.get_shutdown�statec C r� )z� Set the shutdown state of the Connection. :param state: bitvector of SENT_SHUTDOWN, RECEIVED_SHUTDOWN. :return: None zstate must be an integerN)r� r� r� r� ZSSL_set_shutdownr� )r� rU r� r� r� � set_shutdown� s zConnection.set_shutdownc C s t �t�| j��S )z� Retrieve a verbose string detailing the state of the Connection. :return: A string representing the state )r� r� r� ZSSL_state_string_longr� r� r� r� r� �get_state_string� s zConnection.get_state_stringc C �f t �| j�}|tjkr dS t �| jtjd�}t|dk� td|�}t �| j||� t�||�dd� S )z� Retrieve the random value used with the server hello message. :return: A string representing the state Nr r� ) r� �SSL_get_sessionr� r� r� ZSSL_get_server_randomr r) r� �r� �session�length�outpr� r� r� � server_random� s zConnection.server_randomc C rX )z� Retrieve the random value used with the client hello message. :return: A string representing the state Nr r� ) r� rY r� r� r� ZSSL_get_client_randomr r) r� rZ r� r� r� � client_random� s zConnection.client_randomc C sb t �| j�}|tjkr dS t �|tjd�}t|dk� td|�}t �|||� t�||�dd� S )zz Retrieve the value of the master key for this session. :return: A string representing the state Nr r� ) r� rY r� r� r� ZSSL_SESSION_get_master_keyr r) r� rZ r� r� r� � master_key� s zConnection.master_key�label�olenc C sn t d|�}tj}d}d}|dur|}t|�}d}t�| j|||t|�|||�}t|dk� t�||�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� r Nr� ) r) r� r� r� r� ZSSL_export_keying_materialr� r r� ) r� ra rb r6 r] Z context_bufZ context_lenZ use_context�successr� r� r� �export_keying_material� s( � z!Connection.export_keying_materialc O s | j j|i |��S )z� Call the :meth:`shutdown` method of the underlying socket. See :manpage:`shutdown(2)`. :return: What the socket's shutdown() method returns )r rK r r� r� r� � sock_shutdown� s zConnection.sock_shutdown�as_cryptography�typing.Literal[True]�x509.Certificate | Nonec C � d S r� r� �r� rf r� r� r� �get_certificate� � zConnection.get_certificateF)rf �typing.Literal[False]� X509 | Nonec C ri r� r� rj r� r� r� rk � rl �,typing.Literal[True] | typing.Literal[False]� X509 | x509.Certificate | Nonec C s> t �| j�}|tjkr t �|� t�|�}|r|�� S |S dS )a Retrieve the local certificate (if any) :param bool as_cryptography: Controls whether a ``cryptography.x509.Certificate`` or an ``OpenSSL.crypto.X509`` object should be returned. :return: The local certificate N) r� ZSSL_get_certificater� r� r� r� r r� �to_cryptography�r� rf r� �pycertr� r� r� rk � s c C ri r� r� rj r� r� r� �get_peer_certificate rl z Connection.get_peer_certificatec C ri r� r� rj r� r� r� rt rl c C s4 t �| j�}|tjkrt�|�}|r|�� S |S dS )a Retrieve the other side's certificate (if any) :param bool as_cryptography: Controls whether a ``cryptography.x509.Certificate`` or an ``OpenSSL.crypto.X509`` object should be returned. :return: The peer's certificate N)r� ZSSL_get_peer_certificater� r� r� r r� rq rr r� r� r� rt s � cert_stack� list[X509]c C s` g }t t�| ��D ]$}t�| |�}t|tjk� t�|�}t|dk� t� |�}|� |� q |S �zb Internal helper to convert a STACK_OF(X509) to a list of X509 instances. r� ) rQ r� � sk_X509_num� sk_X509_valuer r� r� r� r r� r� �ru r� r� r� r� rs r� r� r� �_cert_stack_to_list1 s z Connection._cert_stack_to_list�list[x509.Certificate]c C sd g }t t�| ��D ]&}t�| |�}t|tjk� t�|�}t|dk� t� |�}|� |� � � q |S rw ) rQ r� rx ry r r� r� r� r r� r� rq rz r� r� r� � _cert_stack_to_cryptography_listA s z+Connection._cert_stack_to_cryptography_list� list[x509.Certificate] | Nonec C ri r� r� rj r� r� r� �get_peer_cert_chainS rl z Connection.get_peer_cert_chain�list[X509] | Nonec C ri r� r� rj r� r� r� r Y rl �*list[X509] | list[x509.Certificate] | Nonec C �2 t �| j�}|tjkr dS |r| �|�S | �|�S )as Retrieve the other side's certificate (if any) :param bool as_cryptography: Controls whether a list of ``cryptography.x509.Certificate`` or ``OpenSSL.crypto.X509`` object should be returned. :return: A list of X509 instances giving the peer's certificate chain, or None if it does not have one. N)r� ZSSL_get_peer_cert_chainr� r� r� r} r{ �r� rf ru r� r� r� r _ s c C ri r� r� rj r� r� r� �get_verified_chainv rl z Connection.get_verified_chainc C ri r� r� rj r� r� r� r� | rl c C r� )a� Retrieve the verified certificate chain of the peer including the peer's end entity certificate. It must be called after a session has been successfully established. If peer verification was not successful the chain may be incomplete, invalid, or None. :param bool as_cryptography: Controls whether a list of ``cryptography.x509.Certificate`` or ``OpenSSL.crypto.X509`` object should be returned. :return: A list of X509 instances giving the peer's verified certificate chain, or None if it does not have one. .. versionadded:: 20.0 N)r� ZSSL_get0_verified_chainr� r� r� r} r{ r� r� r� r� r� � s c C r� )z� Checks if more data has to be read from the transport layer to complete an operation. :return: True iff more data has to be read )r� Z SSL_want_readr� r� r� r� r� � want_read� r� zConnection.want_readc C r� )z� Checks if there is data to write to the transport layer to complete an operation. :return: True iff there is data to write )r� ZSSL_want_writer� r� r� r� r� � want_write� r� zConnection.want_writec C � t �| j� dS )z� Set the connection to work in server mode. The handshake will be handled automatically by read/write. :return: None N)r� ZSSL_set_accept_stater� r� r� r� r� rD � r; zConnection.set_accept_statec C r� )z� Set the connection to work in client mode. The handshake will be handled automatically by read/write. :return: None N)r� r> r� r� r� r� r� rA � r; z Connection.set_connect_state�Session | Nonec C s8 t �| j�}|tjkr dS t�t�}t�|t j�|_ |S )z� Returns the Session currently used. :return: An instance of :class:`OpenSSL.SSL.Session` or :obj:`None` if no session exists. .. versionadded:: 0.14 N) r� ZSSL_get1_sessionr� r� r� ry r� r ZSSL_SESSION_freer )r� r[ Z pysessionr� r� r� � get_session� s zConnection.get_sessionr[ ry c C s2 t |t�s td��t�| j|j�}t|dk� dS )z� Set the session to be used when the TLS/SSL connection is established. :param session: A Session instance representing the session to use. :returns: None .. versionadded:: 0.14 z"session must be a Session instancer� N)r� ry r� r� ZSSL_set_sessionr� r r )r� r[ r� r� r� r� � set_session� s zConnection.set_session�function� Callable[[Any, Any, int], int]c C sR t �dd�}|| j|d�}|dkrdS td|�}|| j||� t �||�dd� S )aN Helper to implement :meth:`get_finished` and :meth:`get_peer_finished`. :param function: Either :data:`SSL_get_finished`: or :data:`SSL_get_peer_finished`. :return: :data:`None` if the desired message has not yet been received, otherwise the contents of the message. r( r N)r� r� r� r) r� )r� r� �emptyr@ r r� r� r� �_get_finished_message� s z Connection._get_finished_messagec C � | � tj�S )z� Obtain the latest TLS Finished message that we sent. :return: The contents of the message or :obj:`None` if the TLS handshake has not yet completed. .. versionadded:: 0.15 )r� r� ZSSL_get_finishedr� r� r� r� � get_finished � zConnection.get_finishedc C r� )z� 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. .. versionadded:: 0.15 )r� r� ZSSL_get_peer_finishedr� r� r� r� �get_peer_finished r� z Connection.get_peer_finished� str | Nonec C �4 t �| j�}|tjkr dS t�t �|��}|�d�S )z� 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. .. versionadded:: 0.15 NrL )r� �SSL_get_current_cipherr� r� r� r� ZSSL_CIPHER_get_namerM )r� �cipherr� r� r� r� �get_cipher_name � zConnection.get_cipher_namec C s( t �| j�}|tjkr dS t �|tj�S )z� Obtain the number of secret bits of the currently used cipher. :returns: The number of secret bits of the currently used cipher or :obj:`None` if no connection has been established. .. versionadded:: 0.15 N)r� r� r� r� r� ZSSL_CIPHER_get_bits)r� r� r� r� r� �get_cipher_bits, s zConnection.get_cipher_bitsc C r� )z� Obtain the protocol version of the currently used cipher. :returns: The protocol name of the currently used cipher or :obj:`None` if no connection has been established. .. versionadded:: 0.15 NrL )r� r� r� r� r� r� ZSSL_CIPHER_get_versionrM )r� r� r5 r� r� r� �get_cipher_version; r� z Connection.get_cipher_versionc C s t �t�| j��}|�d�S )a Retrieve the protocol version of the current connection. :returns: The TLS version of the current connection, for example the value for TLS 1.2 would be ``TLSv1.2``or ``Unknown`` for connections that were not successfully established. rL )r� r� r� ZSSL_get_versionr� rM r8 r� r� r� �get_protocol_version_nameK s z$Connection.get_protocol_version_namec C s t �| j�}|S )z� Retrieve the SSL or TLS protocol version of the current connection. :returns: The TLS version of the current connection. For example, it will return ``0x769`` for connections made over TLS version 1. )r� Z SSL_versionr� r8 r� r� r� �get_protocol_versionV s z Connection.get_protocol_versionr� r� c C r� )ah Specify the client's ALPN protocol list. These protocols are offered to the server during 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� r� c s r� r� r� r� r� r� r� r� s r� z-Connection.set_alpn_protos.<locals>.<genexpr>r� r N) r� r� r r� r� r� r r� ZSSL_set_alpn_protosr� r� r� r� r� r� r� ` s � �zConnection.set_alpn_protosc C sH t �d�}t �d�}t�| j||� |sdS t �|d |d �dd� S )z� Get the protocol that was negotiated by ALPN. :returns: A bytestring of the protocol name. If no protocol has been negotiated yet, returns an empty bytestring. r� zunsigned int *r� r N)r� r� r� ZSSL_get0_alpn_selectedr� r� )r� r� Zdata_lenr� r� r� �get_alpn_proto_negotiated� s z$Connection.get_alpn_proto_negotiatedc C s t �| j�}|s dS t�|j�S )z� Get the SRTP protocol which was negotiated. :returns: A bytestring of the SRTP profile name. If no profile has been negotiated yet, returns an empty bytestring. r� )r� Z SSL_get_selected_srtp_profiler� r� r� r� )r� Zprofiler� r� r� �get_selected_srtp_profile� s z$Connection.get_selected_srtp_profilec C sD t �| j�}|tjkr dS t �| j�}|tjkrdS t�|��d�S )z� Get the name of the negotiated group for the key exchange. :return: A string giving the group name or :data:`None`. NrL )r� rY r� r� r� ZSSL_get0_group_namer� rM )r� r[ Z group_namer� r� r� �get_group_name� s zConnection.get_group_namec C s t �| jt j�}t|dk� dS )a Called to request that the server sends stapled OCSP data, if available. If this is not called on the client side then the server will not send OCSP data. Should be used in conjunction with :meth:`Context.set_ocsp_client_callback`. r� N)r� ZSSL_set_tlsext_status_typer� ZTLSEXT_STATUSTYPE_ocspr )r� r� r� r� r� � request_ocsp� s �zConnection.request_ocspr� c r� )r� c r� r� r� r� r� r� r� r� � r� z-Connection.set_info_callback.<locals>.wrapperr� N)r r� r� r' r� ZSSL_set_info_callbackr� r� r� r� r� r� � s �z Connection.set_info_callbackr� )r6 ro r� r� r� r� )r� r r� r )r� r r� r� r� r� )r� ro )r6 ro r� r� )r� r r� r� r� r� )r r� r� r� )r� r� r� r� )r )r r r r� r� r� )r' r� r r� r� r� )NN)r� r r. r� r r� r� r� )r� r r� r� r� r1 )r' r� r� r� )r r r� r� )r� r� r� )r= r r� r� )r= r r� r� )r� rB )r� r� )r� rY )r� rP )r r r r r� r1 r� r� )rU r� r� r� )r� r� )ra r� rb r� r6 r r� r� )r r r r r� r� )rf rg r� rh )rf rm r� rn )rf ro r� rp )ru r r� rv )ru r r� r| )rf rg r� r~ )rf rm r� r� )rf ro r� r� )r� r� )r[ ry r� r� )r� r� r� r )r� r� )r� r r� r� )Tr� r� r� r r� r r� r r r r r r� r� rl rz r r r r r# �writer& r- �readr0 r3 r5 r6 r8 r: r7 r< r? r@ rC rF rG rI rJ rK rO rR rS r� r� rT rV rW r^ r_ r` rd re r �overloadrk rt � staticmethodr{ r} r r� r� r� rD rA r� r� r� r� r� r� r� r� r� r� r� r� r� � _requires_ssl_get0_group_namer� r� r� r� r� r� r� rn � s� � � > 5 � � * � �������� # " )r� r r� r� )r� r� r� r� )r� r� r� r r� r )r r r� r )�� __future__r rU r� r� r r �collections.abcr r r � functoolsr r � itertoolsr r r r r r r �weakrefr Z cryptographyr Z)cryptography.hazmat.primitives.asymmetricr Z OpenSSL._utilr r_ r Z_exception_from_error_queuer r� r r� r Z _make_assertr r) r r= r r| ZOpenSSL.cryptor r r r r r r r �__all__r+ r r* r' r) r( r& rR rO rQ rP rN ZSSL_SENT_SHUTDOWNrD ZSSL_RECEIVED_SHUTDOWNrC rx r} r{ r| rh ri rg r" r# r! rM rf rc rd re ZSSL_OP_NO_SSLv2rq ZSSL_OP_NO_SSLv3rr ZSSL_OP_NO_TLSv1rs ZSSL_OP_NO_TLSv1_1rt ZSSL_OP_NO_TLSv1_2ru ZSSL_OP_NO_TLSv1_3rv ZSSL_MODE_RELEASE_BUFFERSr$ ZSSL_OP_SINGLE_DH_USEr< ZSSL_OP_SINGLE_ECDH_USEr= ZSSL_OP_EPHEMERAL_RSAr/ Z SSL_OP_MICROSOFT_SESS_ID_BUGr1 Z SSL_OP_NETSCAPE_CHALLENGE_BUGr4 Z'SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUGr6 Z"SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUGr? Z!SSL_OP_MICROSOFT_BIG_SSLV3_BUFFERr0 Z SSL_OP_MSIE_SSLV2_RSA_PADDINGr2 Z SSL_OP_SSLEAY_080_CLIENT_DH_BUGr> ZSSL_OP_TLS_D5_BUGrA Z SSL_OP_TLS_BLOCK_PADDING_BUGr@ Z"SSL_OP_DONT_INSERT_EMPTY_FRAGMENTSr. Z SSL_OP_CIPHER_SERVER_PREFERENCEr- ZSSL_OP_TLS_ROLLBACK_BUGrB ZSSL_OP_PKCS1_CHECK_1r: ZSSL_OP_PKCS1_CHECK_2r; ZSSL_OP_NETSCAPE_CA_DN_BUGr3 Z&SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUGr5 ZSSL_OP_NO_COMPRESSIONr7 ZSSL_OP_NO_QUERY_MTUr8 ZSSL_OP_COOKIE_EXCHANGEr� r� r ZSSL_OP_NO_TICKETr9 ZSSL_OP_NO_RENEGOTIATIONr� Z SSL_OP_IGNORE_UNEXPECTED_EOFr� Z SSL_OP_LEGACY_SERVER_CONNECTr� Z SSL_OP_ALLr, ZSSL_VERIFY_PEERrm Z SSL_VERIFY_FAIL_IF_NO_PEER_CERTrk ZSSL_VERIFY_CLIENT_ONCErj ZSSL_VERIFY_NONErl ZSSL_SESS_CACHE_OFFrK ZSSL_SESS_CACHE_CLIENTrF ZSSL_SESS_CACHE_SERVERrL ZSSL_SESS_CACHE_BOTHrE Z SSL_SESS_CACHE_NO_AUTO_CLEARrG Z!SSL_SESS_CACHE_NO_INTERNAL_LOOKUPrI Z SSL_SESS_CACHE_NO_INTERNAL_STORErJ ZSSL_SESS_CACHE_NO_INTERNALrH ra r` rb r[ rX r\ r^ rU r] r_ rT rS rW rV rZ rY �Unionr� � bytearrayr/ r r� r� r% �Listr� r� r� r� Z_OCSPClientCallbackZ_OCSPServerCallbackr� Z_PassphraseCallbackr� r� rO rP rL rM r� rp r� r r~ r r� r� rz r� r� r� r� r� r� r� r� r� rw r r� r� r� r� ry r r ro rn r� r� r� r� �<module> s� ( f � ������ ��k � (=C; � � � C
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