shell bypass 403
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usr
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lib
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python3
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dist-packages
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twisted
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mail
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protocols.cpython-312.pyc
� Ϫ�f&0 � �j � d Z ddlmZ ddlmZ ddlmZmZ ddlm Z ddl m Z m Z ddl mZmZmZ ddlmZ eej& � G d � d � � Z G d � d e� Z G d � de� Z G d� dej. � Z G d� de� Z G d� dej2 � Z G d� de j6 � Z y)z Mail protocol support. � )� implementer)� longversion)�CramMD5Credentials�UsernamePassword)�UnauthorizedLogin)�defer�protocol)�pop3�relay�smtp)�logc �T � e Zd ZU dZdZdZeed< ej fd�Z d� Z d� Z d� Z y) �DomainDeliveryBaseaN A base class for message delivery using the domains of a mail service. @ivar service: See L{__init__} @ivar user: See L{__init__} @ivar host: See L{__init__} @type protocolName: L{bytes} @ivar protocolName: The protocol being used to deliver the mail. Sub-classes should set this appropriately. Ns not-implemented-protocol� protocolNamec �. � || _ || _ || _ y)z� @type service: L{MailService} @param service: A mail service. @type user: L{bytes} or L{None} @param user: The authenticated SMTP user. @type host: L{bytes} @param host: The hostname. N)�service�user�host)�selfr r r s �8/usr/lib/python3/dist-packages/twisted/mail/protocols.py�__init__zDomainDeliveryBase.__init__% s � � �� ��� ��� � c � � dx}}| j r d| j j d� z }|d rd|d z }d|d z dz |d z d z |z |z }d | j z d z | j z d z t j d � z dz }ddj t t |� � z dz t j � z }d|z dz |z dz |z S )a� Generate a received header string for a message. @type helo: 2-L{tuple} of (L{bytes}, L{bytes}) @param helo: The client's identity as sent in the HELO command and its IP address. @type origin: L{Address} @param origin: The origination address of the message. @type recipients: L{list} of L{User} @param recipients: The destination addresses for the message. @rtype: L{bytes} @return: A received header string. r s auth=�xtextr s helo=s from s ([� � ]s by s with s (�ascii� )s for <� s > s Received: s ) r �encoder r r �join�map�bytesr � rfc822date) r �helo�origin� recipients�authStr�heloStr�fromUser�by�forUsers r �receivedHeaderz!DomainDeliveryBase.receivedHeader4 s � �" � ��'� �9�9� �$�)�)�"2�"2�7�";�;�G� ��7� �$�q�'�)�G��d�1�g�%��.��a��8�4�?�'�I�G�S�� ��i�i� �� � � � � � � � � � ��)� *� � � � �t�y�y��U�J�!7�8� 8�5� @�4�?�?�CT� T� � �x�'�'�1�B�6��@�7�J�Jr c � � | j rs| j j r]| j j j |j j d� }|�Nt j | j d� }n-| j j |j j }t j |j |� S )a9 Validate the address for which a message is destined. @type user: L{User} @param user: The destination address. @rtype: L{Deferred <defer.Deferred>} which successfully fires with no-argument callable which returns L{IMessage <smtp.IMessage>} provider. @return: A deferred which successfully fires with a no-argument callable which returns a message receiver for the destination. @raise SMTPBadRcpt: When messages cannot be accepted for the destination address. NT) r r �queue�domains�get�dest�domainr � DomainQueuerr � maybeDeferred�exists)r r �ds r � validateToz DomainDeliveryBase.validateToY s� � �" �9�9�� � �+�+�� � �$�$�(�(����)9�)9�4�@�A��y��&�&�t�|�|�T�:��� � �$�$�T�Y�Y�%5�%5�6�A��"�"�1�8�8�T�2�2r c � � |st j |dd� �|j dk7 r&|j dk( rt j |dd� �|S )a� Validate the address from which a message originates. @type helo: 2-L{tuple} of (L{bytes}, L{bytes}) @param helo: The client's identity as sent in the HELO command and its IP address. @type origin: L{Address} @param origin: The origination address of the message. @rtype: L{Address} @return: The origination address. @raise SMTPBadSender: When messages cannot be accepted from the origination address. i� z Who are you? Say HELO first.r i� z#Sender address must contain domain.)r � SMTPBadSender�localr3 )r r% r& s r � validateFromz DomainDeliveryBase.validateFromr sO � �" ��$�$�V�S�2Q�R� R� �<�<�3� �6�=�=�C�#7��$�$�V�S�2W�X� X�� r )�__name__� __module__� __qualname__�__doc__r r r# �__annotations__r �DNSNAMEr r- r8 r< � r r r r s5 � � � �G�5�L�%�5�+/�<�<� � #K�J3�2r r c � � e Zd ZdZdZy)�SMTPDomainDeliveryzA A domain delivery base class for use in an SMTP server. s smtpN�r= r> r? r@ r rC r r rE rE � s � �� �Lr rE c � � e Zd ZdZdZy)�ESMTPDomainDeliveryzB A domain delivery base class for use in an ESMTP server. s esmtpNrF rC r r rH rH � s � �� �Lr rH c �: � e Zd ZdZej ZdZdd�Zd� Z y)� SMTPFactorya; An SMTP server protocol factory. @ivar service: See L{__init__} @ivar portal: See L{__init__} @type protocol: no-argument callable which returns a L{Protocol <protocol.Protocol>} subclass @ivar protocol: A callable which creates a protocol. The default value is L{SMTP}. Nc �^ � t j j | � || _ || _ y)z� @type service: L{MailService} @param service: An email service. @type portal: L{Portal <twisted.cred.portal.Portal>} or L{None} @param portal: A portal to use for authentication. N)r rJ r r �portal)r r rL s r r zSMTPFactory.__init__� s& � � ���!�!�$�'� �� � �� r c � � t j d|� �� t j j | |� }| j |_ | j |_ |S )a Create an instance of an SMTP server protocol. @type addr: L{IAddress <twisted.internet.interfaces.IAddress>} provider @param addr: The address of the SMTP client. @rtype: L{SMTP} @return: An SMTP protocol. zConnection from )r �msgr rJ � buildProtocolr rL �r �addr�ps r rO zSMTPFactory.buildProtocol� sK � � ���"�4�&�)�*� � � � *� *�4�� 6���L�L�� ��;�;����r )N) r= r> r? r@ r �SMTPr rL r rO rC r r rJ rJ � s! � � � �y�y�H� �F� �r rJ c �8 � e Zd ZdZej ZdZd� Zd� Z y)� ESMTPFactorya An ESMTP server protocol factory. @type protocol: no-argument callable which returns a L{Protocol <protocol.Protocol>} subclass @ivar protocol: A callable which creates a protocol. The default value is L{ESMTP}. @type context: L{IOpenSSLContextFactory <twisted.internet.interfaces.IOpenSSLContextFactory>} or L{None} @ivar context: A factory to generate contexts to be used in negotiating encrypted communication. @type challengers: L{dict} mapping L{bytes} to no-argument callable which returns L{ICredentials <twisted.cred.credentials.ICredentials>} subclass provider. @ivar challengers: A mapping of acceptable authorization mechanism to callable which creates credentials to use for authentication. Nc �J � t j | g|��� dt i| _ y)zk @param args: Arguments for L{SMTPFactory.__init__} @see: L{SMTPFactory.__init__} s CRAM-MD5N)rJ r r � challengers)r �argss r r zESMTPFactory.__init__� s% � � � � �T�)�D�)� '�);�<��r c �v � t j | |� }| j |_ | j |_ |S )a Create an instance of an ESMTP server protocol. @type addr: L{IAddress <twisted.internet.interfaces.IAddress>} provider @param addr: The address of the ESMTP client. @rtype: L{ESMTP} @return: An ESMTP protocol. )rJ rO rW �context�ctxrP s r rO zESMTPFactory.buildProtocol� s3 � � � %� %�d�D� 1�� �(�(�� �� � ����r ) r= r> r? r@ r �ESMTPr rZ r rO rC r r rU rU � s! � ��( �z�z�H��G�=� r rU c �* � e Zd ZdZdZdZd� Zd� Zd� Zy)� VirtualPOP3a[ A virtual hosting POP3 server. @type service: L{MailService} @ivar service: The email service that created this server. This must be set by the service. @type domainSpecifier: L{bytes} @ivar domainSpecifier: The character to use to split an email address into local-part and domain. The default is '@'. N� @c �: � | j |� \ }} | j j |� }|j t j | j ||� dt j � S # t $ r t j t � � cY S w xY w)a1 Perform APOP authentication. Override the default lookup scheme to allow virtual domains. @type user: L{bytes} @param user: The name of the user attempting to log in. @type digest: L{bytes} @param digest: The challenge response. @rtype: L{Deferred} which successfully results in 3-L{tuple} of (L{IMailbox <pop3.IMailbox>}, L{IMailbox <pop3.IMailbox>} provider, no-argument callable) @return: A deferred which fires when authentication is complete. If successful, it returns an L{IMailbox <pop3.IMailbox>} interface, a mailbox and a logout function. If authentication fails, the deferred fails with an L{UnauthorizedLogin <twisted.cred.error.UnauthorizedLogin>} error. N) � lookupDomainr � lookupPortal�loginr �APOPCredentials�magic�IMailbox�KeyErrorr �failr )r r �digestr3 rL s r �authenticateUserAPOPz VirtualPOP3.authenticateUserAPOP s� � �* �(�(��.� ��f� ��\�\�.�.�v�6�F� �<�<��$�$�T�Z�Z��v�>��d�m�m�� �� � 3��:�:� /� 1�2� 2� 3�s �A1 �1&B�Bc � � | j |� \ }} | j j |� }|j t ||� dt j � S # t $ r t j t � � cY S w xY w)aY Perform authentication for a username/password login. Override the default lookup scheme to allow virtual domains. @type user: L{bytes} @param user: The name of the user attempting to log in. @type password: L{bytes} @param password: The password to authenticate with. @rtype: L{Deferred} which successfully results in 3-L{tuple} of (L{IMailbox <pop3.IMailbox>}, L{IMailbox <pop3.IMailbox>} provider, no-argument callable) @return: A deferred which fires when authentication is complete. If successful, it returns an L{IMailbox <pop3.IMailbox>} interface, a mailbox and a logout function. If authentication fails, the deferred fails with an L{UnauthorizedLogin <twisted.cred.error.UnauthorizedLogin>} error. N) ra r rb rc r r rf rg r rh r )r r �passwordr3 rL s r �authenticateUserPASSz VirtualPOP3.authenticateUserPASS+ sw � �* �(�(��.� ��f� W��\�\�.�.�v�6�F� �<�<� 0��x� @�$�� � �V� V�� � 3��:�:� /� 1�2� 2� 3�s �A � &B�Bc � � |j | j d� \ }}|| j j vr3t j dj |j d� � � �||fS # t $ r d}Y �\w xY w)a� Check whether a domain is among the virtual domains supported by the mail service. @type user: L{bytes} @param user: An email address. @rtype: 2-L{tuple} of (L{bytes}, L{bytes}) @return: The local part and the domain part of the email address if the domain is supported. @raise POP3Error: When the domain is not supported by the mail service. r r zno such domain {}zutf-8) �split�domainSpecifier� ValueErrorr r0 r � POP3Error�format�decode)r r r3 s r ra zVirtualPOP3.lookupDomainH sy � � � �:�:�d�&:�&:�A�>�L�D�&� �� � �-�-� -��.�.�!4�!;�!;�F�M�M�'�<R�!S�T� T��V�|��� � ��F� �s � A0 �0 A>�=A>) r= r> r? r@ r rp rj rm ra rC r r r^ r^ � s# � � � �G��O� �>W�: r r^ c �$ � e Zd ZdZeZdZd� Zd� Zy)� POP3Factorya A POP3 server protocol factory. @ivar service: See L{__init__} @type protocol: no-argument callable which returns a L{Protocol <protocol.Protocol>} subclass @ivar protocol: A callable which creates a protocol. The default value is L{VirtualPOP3}. Nc � � || _ y)zY @type service: L{MailService} @param service: An email service. N)r )r r s r r zPOP3Factory.__init__n s � � �� r c �h � t j j | |� }| j |_ |S )a Create an instance of a POP3 server protocol. @type addr: L{IAddress <twisted.internet.interfaces.IAddress>} provider @param addr: The address of the POP3 client. @rtype: L{POP3} @return: A POP3 protocol. )r � ServerFactoryrO r rP s r rO zPOP3Factory.buildProtocolu s, � � � "� "� 0� 0��t� <���L�L�� ��r ) r= r> r? r@ r^ r r r rO rC r r rv rv _ s � � � �H��G� � r rv N) r@ �zope.interfacer �twisted.copyrightr �twisted.cred.credentialsr r �twisted.cred.errorr �twisted.internetr r � twisted.mailr r r �twisted.pythonr �IMessageDeliveryr rE rH rJ rU �POP3r^ ry rv rC r r �<module>r� s� �� � '� )� I� 0� ,� *� *� � �T� "� "�#�r� r� $�r�j�+� � �,� �+�$�"�"� +�\.�;� .�bc �$�)�)� c �L"�(�(�(� "r
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