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U ���g�� � @ s� d Z ddlZddlZddlmZ ddlmZmZ m Z ddl Z ddl m Z mZmZ ddl mZmZmZ ddl mZmZmZmZmZmZmZ ddl mZm Z dd l m Z m Z m Z m!Z! zdd l m"Z" W n e#k r� Y nX dd l m$Z$m%Z%m&Z&m'Z'm(Z(m)Z)m*Z*m+Z+m,Z,m-Z- dd l m.Z.m/Z/ e j0d e1dd� e d� e j0de1dd� e d� e j0de1dd� e d� e j0de1dd� e d� e j0de1dd� e d� e j0de1dd� e d� e2j3 Z4e2_4dd � e2j5�6� D �Z7e8e2d d�Z9G d d � d e �Z:G d d!� d!e �Z;G d"d#� d#e �Z<G d$d%� d%e �Z=ej>d&k�r"dd'l m?Z?m@Z@ dd(lAmAZAmBZBmCZCmDZD dd)lAmEZEmFZF ddlAZGddlHZHddlIZIddlJZJeKZLd*gZMeNe d+�ZOe.ZPeZQd,d-� ZRd.d/� ZSd0d1� ZTd2d3� ZUed4d5�ZVd6d7� ZWG d8d9� d9ed9d:��ZXG d;d<� d<eXe�ZYG d=d>� d>e�ZZeYj[fdddd?�d@dA�Z\e3fe]dBeYj[ddddddC�dDdE�Z^e\Z_e^Z`G dFdG� dG�ZadHdI� ZbG dJdK� dKeA�ZceceZ_deaeZ_edddBe]e3ddLdLdf dMdN�ZfdOdP� ZgdQZhdRZidSdT� ZjdUdV� Zke3dfdWdX�ZldYdZ� ZmdS )[a� This module provides some more Pythonic support for SSL. Object types: SSLSocket -- subtype of socket.socket which does SSL over the socket Exceptions: SSLError -- exception raised for I/O errors Functions: cert_time_to_seconds -- convert time string used for certificate notBefore and notAfter functions to integer seconds past the Epoch (the time values returned from time.time()) fetch_server_certificate (HOST, PORT) -- fetch the certificate provided by the server running on HOST at port PORT. No validation of the certificate is performed. Integer constants: SSL_ERROR_ZERO_RETURN SSL_ERROR_WANT_READ SSL_ERROR_WANT_WRITE SSL_ERROR_WANT_X509_LOOKUP SSL_ERROR_SYSCALL SSL_ERROR_SSL SSL_ERROR_WANT_CONNECT SSL_ERROR_EOF SSL_ERROR_INVALID_ERROR_CODE The following group define certificate requirements that one side is allowing/requiring from the other side: CERT_NONE - no certificates from the other side are required (or will be looked at if provided) CERT_OPTIONAL - certificates are not required, but if provided will be validated, and if validation fails, the connection will also fail CERT_REQUIRED - certificates are required, and will be validated, and if validation fails, the connection will also fail The following constants identify various SSL protocol variants: PROTOCOL_SSLv2 PROTOCOL_SSLv3 PROTOCOL_SSLv23 PROTOCOL_TLS PROTOCOL_TLS_CLIENT PROTOCOL_TLS_SERVER PROTOCOL_TLSv1 PROTOCOL_TLSv1_1 PROTOCOL_TLSv1_2 The following constants identify various SSL alert message descriptions as per http://www.iana.org/assignments/tls-parameters/tls-parameters.xml#tls-parameters-6 ALERT_DESCRIPTION_CLOSE_NOTIFY ALERT_DESCRIPTION_UNEXPECTED_MESSAGE ALERT_DESCRIPTION_BAD_RECORD_MAC ALERT_DESCRIPTION_RECORD_OVERFLOW ALERT_DESCRIPTION_DECOMPRESSION_FAILURE ALERT_DESCRIPTION_HANDSHAKE_FAILURE ALERT_DESCRIPTION_BAD_CERTIFICATE ALERT_DESCRIPTION_UNSUPPORTED_CERTIFICATE ALERT_DESCRIPTION_CERTIFICATE_REVOKED ALERT_DESCRIPTION_CERTIFICATE_EXPIRED ALERT_DESCRIPTION_CERTIFICATE_UNKNOWN ALERT_DESCRIPTION_ILLEGAL_PARAMETER ALERT_DESCRIPTION_UNKNOWN_CA ALERT_DESCRIPTION_ACCESS_DENIED ALERT_DESCRIPTION_DECODE_ERROR ALERT_DESCRIPTION_DECRYPT_ERROR ALERT_DESCRIPTION_PROTOCOL_VERSION ALERT_DESCRIPTION_INSUFFICIENT_SECURITY ALERT_DESCRIPTION_INTERNAL_ERROR ALERT_DESCRIPTION_USER_CANCELLED ALERT_DESCRIPTION_NO_RENEGOTIATION ALERT_DESCRIPTION_UNSUPPORTED_EXTENSION ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE ALERT_DESCRIPTION_UNRECOGNIZED_NAME ALERT_DESCRIPTION_BAD_CERTIFICATE_STATUS_RESPONSE ALERT_DESCRIPTION_BAD_CERTIFICATE_HASH_VALUE ALERT_DESCRIPTION_UNKNOWN_PSK_IDENTITY � N)� namedtuple)�Enum�IntEnum�IntFlag)�OPENSSL_VERSION_NUMBER�OPENSSL_VERSION_INFO�OPENSSL_VERSION)� _SSLContext� MemoryBIO� SSLSession)�SSLError�SSLZeroReturnError�SSLWantReadError�SSLWantWriteError�SSLSyscallError� SSLEOFError�SSLCertVerificationError)�txt2obj�nid2obj)� RAND_status�RAND_add� RAND_bytes�RAND_pseudo_bytes)�RAND_egd) �HAS_SNI�HAS_ECDH�HAS_NPN�HAS_ALPN� HAS_SSLv2� HAS_SSLv3� HAS_TLSv1� HAS_TLSv1_1� HAS_TLSv1_2� HAS_TLSv1_3)�_DEFAULT_CIPHERS�_OPENSSL_API_VERSION� _SSLMethodc C s | � d�o| dkS )NZ PROTOCOL_�PROTOCOL_SSLv23�� startswith��name� r, �/usr/lib/python3.8/ssl.py�<lambda>| � r. )�source�Optionsc C s | � d�S )NZOP_r( r* r, r, r- r. � r/ ZAlertDescriptionc C s | � d�S )NZALERT_DESCRIPTION_r( r* r, r, r- r. � r/ ZSSLErrorNumberc C s | � d�S )NZ SSL_ERROR_r( r* r, r, r- r. � r/ � VerifyFlagsc C s | � d�S )NZVERIFY_r( r* r, r, r- r. � r/ � VerifyModec C s | � d�S )NZCERT_r( r* r, r, r- r. � r/ c C s i | ]\}}||�qS r, r, )�.0r+ �valuer, r, r- � <dictcomp>� s r6 ZPROTOCOL_SSLv2c @ s6 e Zd ZejZejZejZ ej Z ej Z ejZejZdS )� TLSVersionN)�__name__� __module__� __qualname__�_sslZPROTO_MINIMUM_SUPPORTEDZMINIMUM_SUPPORTEDZ PROTO_SSLv3�SSLv3Z PROTO_TLSv1ZTLSv1Z PROTO_TLSv1_1ZTLSv1_1Z PROTO_TLSv1_2ZTLSv1_2Z PROTO_TLSv1_3ZTLSv1_3ZPROTO_MAXIMUM_SUPPORTEDZMAXIMUM_SUPPORTEDr, r, r, r- r7 � s r7 c @ s( e Zd ZdZdZdZdZdZdZdZ dS ) �_TLSContentTypez@Content types (record layer) See RFC 8446, section B.1 � � � � � � N) r8 r9 r: �__doc__�CHANGE_CIPHER_SPEC�ALERTZ HANDSHAKEZAPPLICATION_DATA�HEADERZINNER_CONTENT_TYPEr, r, r, r- r= � s r= c @ s� e Zd ZdZdZdZdZdZdZdZ dZ d Z d Z d Z d Zd ZdZdZdZdZdZdZdZdZdZdZdZdZdZ dZ d Z d Z d Z d Z!d Z"d!Z#d"Z$d#Z%d$S )%� _TLSAlertTypezQAlert types for TLSContentType.ALERT messages See RFC 8466, section B.2 r � r> r? r@ � �( �) �* �+ �, �- �. �/ �0 �1 �2 �3 �< �F �G �P �V �Z �d �m �n �o �p �q �r �s �t �x N)&r8 r9 r: rD Z CLOSE_NOTIFYZUNEXPECTED_MESSAGEZBAD_RECORD_MACZDECRYPTION_FAILEDZRECORD_OVERFLOWZDECOMPRESSION_FAILUREZHANDSHAKE_FAILUREZNO_CERTIFICATEZBAD_CERTIFICATEZUNSUPPORTED_CERTIFICATEZCERTIFICATE_REVOKEDZCERTIFICATE_EXPIREDZCERTIFICATE_UNKNOWNZILLEGAL_PARAMETERZ UNKNOWN_CAZ ACCESS_DENIEDZ DECODE_ERRORZ DECRYPT_ERRORZEXPORT_RESTRICTIONZPROTOCOL_VERSIONZINSUFFICIENT_SECURITYZINTERNAL_ERRORZINAPPROPRIATE_FALLBACKZ USER_CANCELEDZNO_RENEGOTIATIONZMISSING_EXTENSIONZUNSUPPORTED_EXTENSIONZCERTIFICATE_UNOBTAINABLEZUNRECOGNIZED_NAMEZ BAD_CERTIFICATE_STATUS_RESPONSEZBAD_CERTIFICATE_HASH_VALUEZUNKNOWN_PSK_IDENTITYZCERTIFICATE_REQUIREDZNO_APPLICATION_PROTOCOLr, r, r, r- rH � sF rH c @ sh e Zd ZdZdZdZdZdZdZdZ dZ d Z d Z d Z d Zd ZdZdZdZdZdZdZdZdZdZdZdS )�_TLSMessageTypezFMessage types (handshake protocol) See RFC 8446, section B.3 r � � � � � � � � � � � � � r> r? r@ rA � �C � rC N)r8 r9 r: rD Z HELLO_REQUESTZ CLIENT_HELLOZ SERVER_HELLOZHELLO_VERIFY_REQUESTZNEWSESSION_TICKETZEND_OF_EARLY_DATAZHELLO_RETRY_REQUESTZENCRYPTED_EXTENSIONSZ CERTIFICATEZSERVER_KEY_EXCHANGEZCERTIFICATE_REQUESTZ SERVER_DONEZCERTIFICATE_VERIFYZCLIENT_KEY_EXCHANGEZFINISHEDZCERTIFICATE_URLZCERTIFICATE_STATUSZSUPPLEMENTAL_DATAZ KEY_UPDATEZ NEXT_PROTOZ MESSAGE_HASHrE r, r, r, r- rg � s. rg �win32)�enum_certificates� enum_crls)�socket�AF_INET� SOCK_STREAM�create_connection)� SOL_SOCKET�SO_TYPE� tls-unique� HOSTFLAG_NEVER_CHECK_SUBJECTc C s� | sdS | � d�}|s&| �� |�� kS |dkr<td�| ���| �d�\}}}d|krbtd�| ���|sttd�| ���|dkr�td�| ���|�d�\}}}|r�|s�dS |�� |�� kS ) a� Matching according to RFC 6125, section 6.4.3 - Hostnames are compared lower case. - For IDNA, both dn and hostname must be encoded as IDN A-label (ACE). - Partial wildcards like 'www*.example.org', multiple wildcards, sole wildcard or wildcards in labels other then the left-most label are not supported and a CertificateError is raised. - A wildcard must match at least one character. F�*rh z1too many wildcards in certificate DNS name: {!r}.�.z9wildcard can only be present in the leftmost label: {!r}.z>sole wildcard without additional labels are not support: {!r}.z<partial wildcards in leftmost label are not supported: {!r}.)�count�lower�CertificateError�format� partition)Zdn�hostnameZ wildcardsZ dn_leftmost�sepZ dn_remainderZhostname_leftmostZhostname_remainderr, r, r- �_dnsname_match s@ �������r� c C s� zt �| �}W n tk r" Y n"X t �|�| kr6|S td�| ���zt �t j| �W S tk rv td�| ���Y n tk r� Y nX td�| ���dS )z�Try to convert an IP address to packed binary form Supports IPv4 addresses on all platforms and IPv6 on platforms with IPv6 support. z'{!r} is not a quad-dotted IPv4 address.z+{!r} is neither an IPv4 nor an IP6 address.z {!r} is not an IPv4 address.N) �_socketZ inet_aton�OSErrorZ inet_ntoa� ValueErrorr� Z inet_ptonZAF_INET6�AttributeError)Zipname�addrr, r, r- � _inet_patonD s$ �� r� c C s t | �� �}||kS )z�Exact matching of IP addresses. RFC 6125 explicitly doesn't define an algorithm for this (section 1.7.2 - "Out of Scope"). )r� �rstrip)Zcert_ipaddress�host_ipZipr, r, r- �_ipaddress_matchg s r� c C sJ | s t d��z t|�}W n t k r0 d}Y nX g }| �dd�}|D ]^\}}|dkrz|dkrnt||�rn dS |�|� qF|dkrF|dk r�t||�r� dS |�|� qF|s�| �dd�D ]6}|D ],\}}|dkr�t||�r� dS |�|� q�q�t|�d k�rtd |d �t t |��f ��n,t|�d k�r>td ||d f ��ntd��dS )a� Verify that *cert* (in decoded format as returned by SSLSocket.getpeercert()) matches the *hostname*. RFC 2818 and RFC 6125 rules are followed. The function matches IP addresses rather than dNSNames if hostname is a valid ipaddress string. IPv4 addresses are supported on all platforms. IPv6 addresses are supported on platforms with IPv6 support (AF_INET6 and inet_pton). CertificateError is raised on failure. On success, the function returns nothing. ztempty or no certificate, match_hostname needs a SSL socket or SSL context with either CERT_OPTIONAL or CERT_REQUIREDNZsubjectAltNamer, ZDNSz IP AddressZsubjectZ commonNamerh z&hostname %r doesn't match either of %sz, z hostname %r doesn't match %rr z=no appropriate commonName or subjectAltName fields were found) r� r� �getr� �appendr� �lenr� �join�map�repr)�certr� r� ZdnsnamesZsan�keyr5 �subr, r, r- �match_hostnames sB � �r� �DefaultVerifyPathszQcafile capath openssl_cafile_env openssl_cafile openssl_capath_env openssl_capathc C sd t �� } tj�| d | d �}tj�| d | d �}ttj�|�rF|ndtj�|�rX|ndf| �� S )z/Return paths to default cafile and capath. r rh ri rj N) r; �get_default_verify_paths�os�environr� r� �path�isfile�isdir)�parts�cafile�capathr, r, r- r� � s ��r� c sD e Zd ZdZdZ� fdd�Ze� fdd��Ze� fdd��Z� Z S ) � _ASN1Objectz#ASN.1 object identifier lookup r, c s t � j| ft|dd��� S )NFr* ��super�__new__�_txt2obj)�cls�oid�� __class__r, r- r� � s z_ASN1Object.__new__c s t � j| ft|��� S )z3Create _ASN1Object from OpenSSL numeric ID )r� r� �_nid2obj)r� Znidr� r, r- �fromnid� s z_ASN1Object.fromnidc s t � j| ft|dd��� S )z=Create _ASN1Object from short name, long name or OID Tr* r� )r� r+ r� r, r- �fromname� s z_ASN1Object.fromname) r8 r9 r: rD � __slots__r� � classmethodr� r� � __classcell__r, r, r� r- r� � s r� znid shortname longname oidc @ s e Zd ZdZdZdZdS )�PurposezDSSLContext purpose flags with X509v3 Extended Key Usage objects z1.3.6.1.5.5.7.3.1z1.3.6.1.5.5.7.3.2N)r8 r9 r: rD � SERVER_AUTHZ CLIENT_AUTHr, r, r, r- r� � s r� c s� e Zd ZdZdZdZdZefdd�Zdd� Z d2d d �Z d3d d �Z dd� Z dd� Z dd� Zdd� Zejfdd�Zeed�r�e� fdd��Zej� fdd��Ze� fd d ��Zej� fd d ��Ze� fd d ��Zej� fd!d ��Zeed"��red#d$� �Zejd%d$� �Zn ed&d$� �Ze� fd'd(��Z e j� fd)d(��Z e� fd*d+��Z e� fd,d-��Z e j� fd.d-��Z e� fd/d0��Z e j� fd1d0��Z � Z S )4� SSLContextz|An SSLContext holds various SSL-related configuration options and data, such as certificates and possibly a private key.)ZCAZROOTNc O s t �| |�}|S �N)r r� )r� �protocol�args�kwargs�selfr, r, r- r� � s zSSLContext.__new__c C s4 |d kr d S t |t�r&|�d��d�S |�d�S d S )NZidna�ascii)� isinstance�str�encode�decode)r� r� r, r, r- �_encode_hostname� s zSSLContext._encode_hostnameFTc C s | j j|||||| |d�S )N)�sock� server_side�do_handshake_on_connect�suppress_ragged_eofs�server_hostname�context�session)�sslsocket_class�_create)r� r� r� r� r� r� r� r, r, r- � wrap_socket� s �zSSLContext.wrap_socketc C s | j j|||| �|�|| d�S )N)r� r� r� r� )�sslobject_classr� r� )r� �incoming�outgoingr� r� r� r, r, r- �wrap_bio� s �zSSLContext.wrap_bioc C s` t � }|D ]F}t|d�}t|�dks0t|�dkr8td��|�t|�� |�|� q | �|� d S )Nr� r � z(NPN protocols must be 1 to 255 in length)� bytearray�bytesr� r r� �extendZ_set_npn_protocols)r� Z npn_protocols�protosr� �br, r, r- �set_npn_protocols s z SSLContext.set_npn_protocolsc s8 �d krd � _ n$t��s td��� �fdd�}|� _ d S )Nznot a callable objectc s � � |�}�| ||�S r� )r� )�sslobjZ servernameZsslctx�r� �server_name_callbackr, r- �shim_cb s z3SSLContext.set_servername_callback.<locals>.shim_cb)Z sni_callback�callable� TypeError)r� r� r� r, r� r- �set_servername_callback s z"SSLContext.set_servername_callbackc C s` t � }|D ]F}t|d�}t|�dks0t|�dkr8td��|�t|�� |�|� q | �|� d S )Nr� r r� z)ALPN protocols must be 1 to 255 in length)r� r� r� r r� r� Z_set_alpn_protocols)r� Zalpn_protocolsr� r� r� r, r, r- �set_alpn_protocols s z SSLContext.set_alpn_protocolsc C sv t � }z<t|�D ].\}}}|dkr|dks4|j|kr|�|� qW n tk r` t�d� Y nX |rr| j|d� |S )NZx509_asnTz-unable to enumerate Windows certificate store)�cadata)r� ry r� r� �PermissionError�warnings�warn�load_verify_locations)r� � storename�purposeZcertsr� �encodingZtrustr, r, r- �_load_windows_store_certs+ s z$SSLContext._load_windows_store_certsc C s@ t |t�st|��tjdkr4| jD ]}| �||� q"| �� d S )Nrx )r� r� r� �sys�platform�_windows_cert_storesr� Zset_default_verify_paths)r� r� r� r, r, r- �load_default_certs9 s z SSLContext.load_default_certs�minimum_versionc s t t� j�S r� )r7 r� r� �r� r� r, r- r� B s zSSLContext.minimum_versionc s4 |t jkr | jtj M _ttt�j�| |� d S r� ) r7 r< �optionsr1 Z OP_NO_SSLv3r� r� r� �__set__�r� r5 r� r, r- r� F s c s t t� j�S r� )r7 r� �maximum_versionr� r� r, r- r� L s zSSLContext.maximum_versionc s t tt�j�| |� d S r� )r� r� r� r� r� r� r, r- r� P s c s t t� j�S r� )r1 r� r� r� r� r, r- r� T s zSSLContext.optionsc s t tt�j�| |� d S r� )r� r� r� r� r� r� r, r- r� X s r� c C s | j tj@ }|tjkS r� �Z _host_flagsr; r� )r� Zncsr, r, r- �hostname_checks_common_name] s z&SSLContext.hostname_checks_common_namec C s, |r| j tj M _ n| j tjO _ d S r� r� r� r, r, r- r� b s c C s dS )NTr, r� r, r, r- r� i s c s t � j}|dk r|jS dS dS )a9 TLS message callback The message callback provides a debugging hook to analyze TLS connections. The callback is called for any TLS protocol message (header, handshake, alert, and more), but not for application data. Due to technical limitations, the callback can't be used to filter traffic or to abort a connection. Any exception raised in the callback is delayed until the handshake, read, or write operation has been performed. def msg_cb(conn, direction, version, content_type, msg_type, data): pass conn :class:`SSLSocket` or :class:`SSLObject` instance direction ``read`` or ``write`` version :class:`TLSVersion` enum member or int for unknown version. For a frame header, it's the header version. content_type :class:`_TLSContentType` enum member or int for unsupported content type. msg_type Either a :class:`_TLSContentType` enum number for a header message, a :class:`_TLSAlertType` enum member for an alert message, a :class:`_TLSMessageType` enum member for other messages, or int for unsupported message types. data Raw, decrypted message content as bytes N)r� � _msg_callback� user_function)r� �innerr� r, r- r� m s !zSSLContext._msg_callbackc sb � d kr t tt�j�| d � d S t� d�s8t� � d���� fdd�}� |_t tt�j�| |� d S )N�__call__z is not callable.c s� z t |�}W n tk r Y nX z t|�}W n tk rB Y nX |tjkrTt}n|tjkrdt}nt}z ||�}W n tk r� Y nX � | |||||�S r� )r7 r� r= rG rF rH rg )Zconn� direction�versionZ content_typeZmsg_type�dataZmsg_enum��callbackr, r- r� � s, �z'SSLContext._msg_callback.<locals>.inner)r� r� r� r� �hasattrr� r� )r� r r� r� r r- r� � s c s t t� j�S r� )r& r� r� r� r� r, r- r� � s zSSLContext.protocolc s t t� j�S r� )r2 r� � verify_flagsr� r� r, r- r � s zSSLContext.verify_flagsc s t tt�j�| |� d S r� )r� r� r r� r� r� r, r- r � s c s0 t � j}z t|�W S tk r* | Y S X d S r� )r� � verify_moder3 r� r� r� r, r- r � s zSSLContext.verify_modec s t tt�j�| |� d S r� )r� r� r r� r� r� r, r- r � s )FTTNN)FNN)!r8 r9 r: rD r� r� r� � PROTOCOL_TLSr� r� r� r� r� r� r� r� r� r� r� r r �propertyr� �setterr� r� r; r� r� r� r r r� r, r, r� r- r� � sn � � &%r� )r� r� r� c C s� t | t�st| ��tt�}| tjkr0t|_d|_ |s<|s<|rL|� |||� n|jt kr`|� | � t |d�r�tj�d�}|r�tjjs�||_|S )z�Create a SSLContext object with default settings. NOTE: The protocol and settings may change anytime without prior deprecation. The values represent a fair balance between maximum compatibility and security. T�keylog_filename� SSLKEYLOGFILE)r� r� r� r� r r� r� � CERT_REQUIREDr �check_hostnamer� � CERT_NONEr� r r� r� r� r� �flags�ignore_environmentr )r� r� r� r� r� � keylogfiler, r, r- �create_default_context� s r F)� cert_reqsr r� �certfile�keyfiler� r� r� c C s� t |t�st|��t| �} |s$d| _|dk r2|| _|r<d| _|rL|sLtd��|sT|r`| �||� |sl|sl|r|| �|||� n| jt kr�| � |� t | d�r�t j �d�} | r�tjjs�| | _| S )a/ Create a SSLContext object for Python stdlib modules All Python stdlib modules shall use this function to create SSLContext objects in order to keep common settings in one place. The configuration is less restrict than create_default_context()'s to increase backward compatibility. FNT�certfile must be specifiedr r )r� r� r� r� r r r� �load_cert_chainr� r r� r r� r� r� r� r r r ) r� r r r� r r r� r� r� r� r r, r, r- �_create_unverified_context� s, r c @ s� e Zd ZdZdd� Zed2dd��Zedd � �Zej d d � �Zed d � �Z e j d d � �Z edd� �Z edd� �Z edd� �Z d3dd�Zdd� Zd4dd�Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd5d,d-�Zd.d/� Zd0d1� ZdS )6� SSLObjecta This class implements an interface on top of a low-level SSL object as implemented by OpenSSL. This object captures the state of an SSL connection but does not provide any network IO itself. IO needs to be performed through separate "BIO" objects which are OpenSSL's IO abstraction layer. This class does not have a public constructor. Instances are returned by ``SSLContext.wrap_bio``. This class is typically used by framework authors that want to implement asynchronous IO for SSL through memory buffers. When compared to ``SSLSocket``, this object lacks the following features: * Any form of network IO, including methods such as ``recv`` and ``send``. * The ``do_handshake_on_connect`` and ``suppress_ragged_eofs`` machinery. c O s t | jj� d���d S )NzU does not have a public constructor. Instances are returned by SSLContext.wrap_bio().�r� r� r8 �r� r� r� r, r, r- �__init__; s �zSSLObject.__init__FNc C s* | � | �}|j||||||d�}||_|S )N)r� r� �ownerr� )r� Z _wrap_bio�_sslobj) r� r� r� r� r� r� r� r� r� r, r, r- r� A s �zSSLObject._createc C s | j jS )z(The SSLContext that is currently in use.�r r� r� r, r, r- r� M s zSSLObject.contextc C s || j _d S r� r �r� Zctxr, r, r- r� R s c C s | j jS )z!The SSLSession for client socket.�r r� r� r, r, r- r� V s zSSLObject.sessionc C s || j _d S r� r �r� r� r, r, r- r� [ s c C s | j jS )z.Was the client session reused during handshake�r �session_reusedr� r, r, r- r" _ s zSSLObject.session_reusedc C s | j jS )z%Whether this is a server-side socket.)r r� r� r, r, r- r� d s zSSLObject.server_sidec C s | j jS )z^The currently set server hostname (for SNI), or ``None`` if no server hostname is set.)r r� r� r, r, r- r� i s zSSLObject.server_hostname� c C s( |dk r| j �||�}n | j �|�}|S )z�Read up to 'len' bytes from the SSL object and return them. If 'buffer' is provided, read into this buffer and return the number of bytes read. N)r �read)r� r� �buffer�vr, r, r- r$ o s zSSLObject.readc C s | j �|�S )z�Write 'data' to the SSL object and return the number of bytes written. The 'data' argument must support the buffer interface. )r �write�r� r� r, r, r- r' { s zSSLObject.writec C s | j �|�S )z�Returns a formatted version of the data in the certificate provided by the other end of the SSL channel. Return None if no certificate was provided, {} if a certificate was provided, but not validated. )r � getpeercert�r� Z binary_formr, r, r- r) � s zSSLObject.getpeercertc C s t jr| j�� S dS )z�Return the currently selected NPN protocol as a string, or ``None`` if a next protocol was not negotiated or if NPN is not supported by one of the peers.N)r; r r �selected_npn_protocolr� r, r, r- r+ � s z SSLObject.selected_npn_protocolc C s t jr| j�� S dS )z�Return the currently selected ALPN protocol as a string, or ``None`` if a next protocol was not negotiated or if ALPN is not supported by one of the peers.N)r; r r �selected_alpn_protocolr� r, r, r- r, � s z SSLObject.selected_alpn_protocolc C s | j �� S )z_Return the currently selected cipher as a 3-tuple ``(name, ssl_version, secret_bits)``.)r �cipherr� r, r, r- r- � s zSSLObject.cipherc C s | j �� S )z�Return a list of ciphers shared by the client during the handshake or None if this is not a valid server connection. )r �shared_ciphersr� r, r, r- r. � s zSSLObject.shared_ciphersc C s | j �� S )z�Return the current compression algorithm in use, or ``None`` if compression was not negotiated or not supported by one of the peers.)r � compressionr� r, r, r- r/ � s zSSLObject.compressionc C s | j �� S )z8Return the number of bytes that can be read immediately.)r �pendingr� r, r, r- r0 � s zSSLObject.pendingc C s | j �� dS )z Start the SSL/TLS handshake.N)r � do_handshaker� r, r, r- r1 � s zSSLObject.do_handshakec C s | j �� S )z!Start the SSL shutdown handshake.)r �shutdownr� r, r, r- �unwrap� s zSSLObject.unwrapr� c C s | j �|�S )z�Get channel binding data for current connection. Raise ValueError if the requested `cb_type` is not supported. Return bytes of the data or None if the data is not available (e.g. before the handshake).)r �get_channel_binding�r� Zcb_typer, r, r- r4 � s z SSLObject.get_channel_bindingc C s | j �� S )zZReturn a string identifying the protocol version used by the current SSL channel. �r r� r� r, r, r- r� � s zSSLObject.versionc C s | j �� S r� )r � verify_client_post_handshaker� r, r, r- r7 � s z&SSLObject.verify_client_post_handshake)FNNN)r# N)F)r� ) r8 r9 r: rD r r� r� r r� r r� r" r� r� r$ r' r) r+ r, r- r. r/ r0 r1 r3 r4 r� r7 r, r, r, r- r , sH � r c C s t t| j�j| _| S )z*Copy docstring from SSLObject to SSLSocket)�getattrr r8 rD )�funcr, r, r- � _sslcopydoc� s r: c s e Zd ZdZdd� ZedX� fdd� �Zeed d � ��Z e j d d � �Z eed d � ��Z e j dd � �Z eedd� ��Z dd� Z dYdd�Zdd� ZdZdd�Zdd� Zed[d d ��Zed d � �Zed d!� �Zed"d#� �Zed$d%� �Zed&d'� �Zd\� fd)d*� Zd]� fd+d,� Zd-d.� Zd^� fd/d0� Zd_� fd1d2� Z d`� fd3d4� Z da� fd5d6� Z db� fd7d8� Z dc� fd9d:� Z d;d<� Z!d=d>� Z"ed?d@� �Z#� fdAdB�Z$edCdD� �Z%edEdF� �Z&� fdGdH�Z'edddIdJ��Z(� fdKdL�Z)dMdN� Z*dOdP� Z+� fdQdR�Z,ededTdU��Z-edVdW� �Z.� Z/S )f� SSLSocketz�This class implements a subtype of socket.socket that wraps the underlying OS socket in an SSL context when necessary, and provides read and write methods over that channel. c O s t | jj� d���d S )NzX does not have a public constructor. Instances are returned by SSLContext.wrap_socket().r r r, r, r- r � s �zSSLSocket.__init__FTNc sN |� tt�tkrtd��|r8|r(td��|d k r8td��|jrJ|sJtd��t|j|j |j |� � d�}| j | f|�} t t| �jf |� |�� } |�� || _|| _d| _d | _|| _|�|�| _|| _|| _z | �� W n� t k �r� } z�| j t j kr�� d} | � � } | � d� z| �!d�}W n> t k �rZ } z | j t j t j"fk�rF� d}W 5 d } ~ X Y nX | � | � |�r�d }t#| j |�}||_$d |_%z | �&� W n t k �r� Y nX |�W 5 d } ~ X Y nX d } | �'| � | | _(| �rJzH| jj)| || j| | jd �| _|�r"| �� }|d k�rtd ��| �*� W n$ t tfk �rH | �&� � Y nX | S )Nz!only stream sockets are supportedz4server_hostname can only be specified in client modez,session can only be specified in client modez'check_hostname requires server_hostname)�family�type�proto�filenoFrh r/ z5Closed before TLS handshake with data in recv buffer.T�r r� � zHdo_handshake_on_connect should not be specified for non-blocking sockets)+Z getsockoptr r� r} �NotImplementedErrorr� r �dictr< r= r> r? r� r� r; r � gettimeout�detach�_context�_sessionZ_closedr r� r� r� r� r� � getpeernamer� �errnoZENOTCONNZ getblockingZ setblocking�recvZEINVALr �reasonZlibrary�close� settimeout� _connected� _wrap_socketr1 )r� r� r� r� r� r� r� r� r� r� Z sock_timeout�eZ connectedZblockingZnotconn_pre_handshake_datarK Z notconn_pre_handshake_data_error�timeoutr� r, r- r� � s� � � zSSLSocket._createc C s | j S r� )rF r� r, r, r- r� 3 s zSSLSocket.contextc C s || _ || j_d S r� )rF r r� r r, r, r- r� 8 s c C s | j d k r| j jS d S r� r r� r, r, r- r� = s zSSLSocket.sessionc C s || _ | jd k r|| j_d S r� )rG r r� r r, r, r- r� C s c C s | j d k r| j jS d S r� r! r� r, r, r- r" I s zSSLSocket.session_reusedc C s t d| jj ��d S )NzCan't dup() %s instances)rB r� r8 r� r, r, r- �dupO s �z SSLSocket.dupc C s d S r� r, )r� �msgr, r, r- � _checkClosedS s zSSLSocket._checkClosedc C s | j s| �� d S r� )rN rH r� r, r, r- �_check_connectedW s zSSLSocket._check_connectedr# c C s� | � � | jdkrtd��z*|dk r4| j�||�W S | j�|�W S W nV tk r� } z8|jd tkr�| jr�|dk r|W Y �dS W Y � dS n� W 5 d}~X Y nX dS )zORead up to LEN bytes and return them. Return zero-length string on EOF.Nz'Read on closed or unwrapped SSL socket.r r/ )rT r r� r$ r r� Z SSL_ERROR_EOFr� )r� r� r% �xr, r, r- r$ _ s zSSLSocket.readc C s& | � � | jdkrtd��| j�|�S )zhWrite DATA to the underlying SSL channel. Returns number of bytes of DATA actually transmitted.Nz(Write on closed or unwrapped SSL socket.)rT r r� r' r( r, r, r- r' t s zSSLSocket.writec C s | � � | �� | j�|�S r� )rT rU r r) r* r, r, r- r) } s zSSLSocket.getpeercertc C s* | � � | jd kstjs d S | j�� S d S r� )rT r r; r r+ r� r, r, r- r+ � s z SSLSocket.selected_npn_protocolc C s* | � � | jd kstjs d S | j�� S d S r� )rT r r; r r, r� r, r, r- r, � s z SSLSocket.selected_alpn_protocolc C s$ | � � | jd krd S | j�� S d S r� )rT r r- r� r, r, r- r- � s zSSLSocket.cipherc C s$ | � � | jd krd S | j�� S d S r� )rT r r. r� r, r, r- r. � s zSSLSocket.shared_ciphersc C s$ | � � | jd krd S | j�� S d S r� )rT r r/ r� r, r, r- r/ � s zSSLSocket.compressionr c sF | � � | jd k r4|dkr(td| j ��| j�|�S t� �||�S d S )Nr z3non-zero flags not allowed in calls to send() on %s)rT r r� r� r' r� �send)r� r� r r� r, r- rW � s �� zSSLSocket.sendc sL | � � | jd k r"td| j ��n&|d kr8t� �||�S t� �|||�S d S )Nz%sendto not allowed on instances of %s)rT r r� r� r� �sendto)r� r� Z flags_or_addrr� r� r, r- rX � s �zSSLSocket.sendtoc O s t d| j ��d S )Nz&sendmsg not allowed on instances of %s�rB r� r r, r, r- �sendmsg� s �zSSLSocket.sendmsgc s� | � � | jd k r�|dkr(td| j ��d}t|��H}|�d��2}t|�}||k rn| �||d � �}||7 }qJW 5 Q R X W 5 Q R X nt� � ||�S d S )Nr z6non-zero flags not allowed in calls to sendall() on %s�B) rT r r� r� � memoryview�castr� rW r� �sendall)r� r� r r� ZviewZ byte_viewZamountr& r� r, r- r^ � s �� zSSLSocket.sendallc s, | j dk r| �|||�S t� �|||�S dS )z�Send a file, possibly by using os.sendfile() if this is a clear-text socket. Return the total number of bytes sent. N)r Z_sendfile_use_sendr� �sendfile)r� �file�offsetr� r� r, r- r_ � s zSSLSocket.sendfilec sD | � � | jd k r2|dkr(td| j ��| �|�S t� �||�S d S )Nr z3non-zero flags not allowed in calls to recv() on %s)rT r r� r� r$ r� rJ �r� Zbuflenr r� r, r- rJ � s �� zSSLSocket.recvc sj | � � |r |d kr t|�}n |d kr*d}| jd k rV|dkrJtd| j ��| �||�S t� �|||�S d S )Nr# r z8non-zero flags not allowed in calls to recv_into() on %s)rT r� r r� r� r$ r� � recv_into�r� r% �nbytesr r� r, r- rc � s �� zSSLSocket.recv_intoc s4 | � � | jd k r"td| j ��nt� �||�S d S )Nz'recvfrom not allowed on instances of %s)rT r r� r� r� �recvfromrb r� r, r- rf � s �zSSLSocket.recvfromc s6 | � � | jd k r"td| j ��nt� �|||�S d S )Nz,recvfrom_into not allowed on instances of %s)rT r r� r� r� � recvfrom_intord r� r, r- rg s �zSSLSocket.recvfrom_intoc O s t d| j ��d S )Nz&recvmsg not allowed on instances of %srY r r, r, r- �recvmsg s �zSSLSocket.recvmsgc O s t d| j ��d S )Nz+recvmsg_into not allowed on instances of %srY r r, r, r- � recvmsg_into s �zSSLSocket.recvmsg_intoc C s$ | � � | jd k r | j�� S dS d S )Nr )rT r r0 r� r, r, r- r0 s zSSLSocket.pendingc s | � � d | _t� �|� d S r� )rT r r� r2 )r� Zhowr� r, r- r2 s zSSLSocket.shutdownc C s. | j r| j �� }d | _ |S tdt| � ��d S �NzNo SSL wrapper around )r r2 r� r� )r� �sr, r, r- r3 s zSSLSocket.unwrapc C s$ | j r| j �� S tdt| � ��d S rj )r r7 r� r� r� r, r, r- r7 ( s z&SSLSocket.verify_client_post_handshakec s d | _ t� �� d S r� )r r� � _real_closer� r� r, r- rl / s zSSLSocket._real_closec C sF | � � | �� }z$|dkr(|r(| �d � | j�� W 5 | �|� X d S )NrA )rU rD rM r r1 )r� �blockrQ r, r, r- r1 3 s zSSLSocket.do_handshakec s� | j rtd��| js | jd k r&td��| jj| d| j| | jd�| _z@|rVt� � |�}nd }t� � |� |s~d| _| j r~| � � |W S t tfk r� d | _� Y nX d S )Nz!can't connect in server-side modez/attempt to connect already-connected SSLSocket!Fr@ T)r� r� rN r r� rO r� rG r� � connect_ex�connectr� r1 r� )r� r� rn Zrcr� r, r- � _real_connect> s0 � zSSLSocket._real_connectc C s | � |d� dS )�QConnects to remote ADDR, and then wraps the connection in an SSL channel.FN�rp �r� r� r, r, r- ro X s zSSLSocket.connectc C s | � |d�S )rq Trr rs r, r, r- rn ] s zSSLSocket.connect_exc s. t � �� \}}| jj|| j| jdd�}||fS )z�Accepts a new connection from a remote client, and returns a tuple containing that new connection wrapped with a server-side SSL channel, and the address of the remote client.T)r� r� r� )r� �acceptr� r� r� r� )r� Znewsockr� r� r, r- rt b s �zSSLSocket.acceptr� c C s4 | j d k r| j �|�S |tkr,td�|���d S d S )Nz({0} channel binding type not implemented)r r4 �CHANNEL_BINDING_TYPESr� r� r5 r, r, r- r4 n s �z SSLSocket.get_channel_bindingc C s | j d k r| j �� S d S d S r� r6 r� r, r, r- r� y s zSSLSocket.version)FTTNNN)N)r# N)F)r )N)r )r N)r# r )Nr )r# r )Nr )F)r� )0r8 r9 r: rD r r� r� r r: r� r r� r" rR rT rU r$ r' r) r+ r, r- r. r/ rW rX rZ r^ r_ rJ rc rf rg rh ri r0 r2 r3 r7 rl r1 rp ro rn rt r4 r� r� r, r, r� r- r; � s� �[ r; Tc C sl |r|st d��|r |s t d��t|�} || _|r<| �|� |rL| �||� | rZ| �| � | j| |||d�S )Nz5certfile must be specified for server-side operationsr )r� r� r� r� )r� r� r r� r Z set_ciphersr� ) r� r r r� r � ssl_version�ca_certsr� r� Zciphersr� r, r, r- r� � s$ �r� c C s� ddl m} ddlm} d}d}z |�| dd� �� �d }W n$ tk rb td | |f ��Y n0X || dd� |�}||d |f|d d � �S dS ) a� Return the time in seconds since the Epoch, given the timestring representing the "notBefore" or "notAfter" date from a certificate in ``"%b %d %H:%M:%S %Y %Z"`` strptime format (C locale). "notBefore" or "notAfter" dates must use UTC (RFC 5280). Month is one of: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec UTC should be specified as GMT (see ASN1_TIME_print()) r )�strptime)�timegm) ZJanZFebZMarZAprZMayZJunZJulZAugZSepZOctZNovZDecz %d %H:%M:%S %Y GMTNrj rh z*time data %r does not match format "%%b%s"ri rm )�timerx Zcalendarry �index�titler� )Z cert_timerx ry ZmonthsZ time_formatZ month_numberZttr, r, r- �cert_time_to_seconds� s � r} z-----BEGIN CERTIFICATE-----z-----END CERTIFICATE-----c sR t t�| �dd�� tg}|� fdd�tdt� �d�D �7 }|�td � d�|�S )z[Takes a certificate in binary DER format and returns the PEM version of it as a string.�ASCII�strictc s g | ]}� ||d � �qS )�@ r, )r4 �i��fr, r- � <listcomp>� s z(DER_cert_to_PEM_cert.<locals>.<listcomp>r r� � ) r� �base64Zstandard_b64encode� PEM_HEADER�ranger� r� � PEM_FOOTERr� )Zder_cert_bytesZssr, r� r- �DER_cert_to_PEM_cert� s "r� c C s\ | � t�stdt ��| �� �t�s0tdt ��| �� tt�tt� � }t�|� dd��S )zhTakes a certificate in ASCII PEM format and returns the DER-encoded version of it as a byte sequencez(Invalid PEM encoding; must start with %sz&Invalid PEM encoding; must end with %sr~ r ) r) r� r� �strip�endswithr� r� r� Z decodebytesr� )Zpem_cert_string�dr, r, r- �PEM_cert_to_DER_cert� s ��r� c C sd | \}}|dk rt }nt}t|||d�}t| ��&}|�|��}|�d�} W 5 Q R X W 5 Q R X t| �S )z�Retrieve the certificate from the server at the specified address, and return it as a PEM-encoded string. If 'ca_certs' is specified, validate the server cert against it. If 'ssl_version' is specified, use it in the connection attempt.N)r r� T)r r �_create_stdlib_contextr~ r� r) r� ) r� rv rw ZhostZportr r� r� ZsslsockZdercertr, r, r- �get_server_certificate� s � r� c C s t �| d�S )Nz <unknown>)�_PROTOCOL_NAMESr� )Z protocol_coder, r, r- �get_protocol_name� s r� )nrD r� r� � collectionsr �enumr Z_Enumr Z_IntEnumr Z_IntFlagr; r r r r r r r r r r r r r r r� r r� r r r r r � ImportErrorr r r r r r r r! r" r# r$ r% � _convert_r8 r& r r' � __members__�itemsr� r8 Z_SSLv2_IF_EXISTSr7 r= rH rg r� ry rz r{ r| r} r~ r r� r� r� rI r� r� Z socket_errorru r ZHAS_NEVER_CHECK_COMMON_NAMEZ_RESTRICTED_SERVER_CIPHERSr� r� r� r� r� r� r� r� r� r� r� r r r Z _create_default_https_contextr� r r: r; r� r� r� r} r� r� r� r� r� r� r, r, r, r- �<module> s� Y $0 � � � � � � ) 1# 9� z � # � / : �