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Mail protocol support.
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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.
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@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
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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.
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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�
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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.
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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.
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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��
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� #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}.
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@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
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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.
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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.
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@param args: Arguments for L{SMTPFactory.__init__}
@see: L{SMTPFactory.__init__}
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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.
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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 '@'.
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| 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.
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�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��
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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.
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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.
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� �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}.
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@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.
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ServerFactoryrO r rP s r rO zPOP3Factory.buildProtocolu s, � �
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