\d&0zdZddlmZddlmZddlmZmZddlm Z ddl m Z m Z ddl mZmZmZddlmZeejGd d ZGd d eZGd deZGddejZGddeZGddejZGdde jZdS)z Mail protocol support. ) implementer) longversion)CramMD5CredentialsUsernamePassword)UnauthorizedLogin)deferprotocol)pop3relaysmtp)logcLeZdZUdZdZdZeed<ej fdZ dZ dZ dZ dS) 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. Nsnot-implemented-protocol protocolNamec0||_||_||_dS)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)serviceuserhost)selfrrrs 6lib/python3.11/site-packages/twisted/mail/protocols.py__init__zDomainDeliveryBase.__init__%s   cdx}}|jrd|jdz}|dr d|dz}d|dzdz|dzd z|z|z}d |jzd z|jzd zt jd zdz}ddt t|zdztj z}d|zdz|zdz|zS)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. rs auth=xtextrs helo=sfrom s ([]sby s with s (ascii)sfor < s> s Received: s ) rencoderrrjoinmapbytesr rfc822date) rheloorigin recipientsauthStrheloStrfromUserbyforUsers rreceivedHeaderz!DomainDeliveryBase.receivedHeader4s" ' 9 <$)"2"27";";;G 7 *$q')Gd1g%.a84?'IGS i       ))  *     tyyUJ!7!788 85 @4?CTCT T x''1B6@7JJrc"|jrS|jjrG|jj|jjd}|tj|jd}n|jj|jj}tj |j |S)a9 Validate the address for which a message is destined. @type user: L{User} @param user: The destination address. @rtype: L{Deferred } which successfully fires with no-argument callable which returns L{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) rrqueuedomainsgetdestdomainr DomainQueuerr maybeDeferredexists)rrds r validateTozDomainDeliveryBase.validateToYs|" 9 7+ 7 $(()94@@Ay&t|T:: $TY%56A"18T222rc|stj|dd|jdkr!|jdkrtj|dd|S)a Validate the address from which a message originates. @type helo: 2-L{tuple} of (L{bytes}, L{bytes}) @param helo: The client's identity as sent in the HELO command and its IP address. @type origin: L{Address} @param origin: The origination address of the message. @rtype: L{Address} @return: The origination address. @raise SMTPBadSender: When messages cannot be accepted from the origination address. izWho are you? Say HELO first.riz#Sender address must contain domain.)r SMTPBadSenderlocalr3)rr%r&s r validateFromzDomainDeliveryBase.validateFromrsW" S$VS2QRR R <3  6=C#7#7$VS2WXX X r)__name__ __module__ __qualname____doc__rrr#__annotations__r DNSNAMErr-r8r<rrrrs  G5L%555+/<    #K#K#KJ3332rrceZdZdZdZdS)SMTPDomainDeliveryzA A domain delivery base class for use in an SMTP server. ssmtpNr=r>r?r@rrCrrrErEsLLLrrEceZdZdZdZdS)ESMTPDomainDeliveryzB A domain delivery base class for use in an ESMTP server. sesmtpNrFrCrrrHrHsLLLrrHc2eZdZdZejZdZddZdZ dS) SMTPFactorya; An SMTP server protocol factory. @ivar service: See L{__init__} @ivar portal: See L{__init__} @type protocol: no-argument callable which returns a L{Protocol } subclass @ivar protocol: A callable which creates a protocol. The default value is L{SMTP}. Nc`tj|||_||_dS)z @type service: L{MailService} @param service: An email service. @type portal: L{Portal } or L{None} @param portal: A portal to use for authentication. N)r rJrrportal)rrrLs rrzSMTPFactory.__init__s- !!$'''  rctjd|tj||}|j|_|j|_|S)a Create an instance of an SMTP server protocol. @type addr: L{IAddress } provider @param addr: The address of the SMTP client. @rtype: L{SMTP} @return: An SMTP protocol. zConnection from )r msgr rJ buildProtocolrrLraddrps rrOzSMTPFactory.buildProtocolsL )4))***   * *4 6 6L ;r)N) r=r>r?r@r SMTPr rLrrOrCrrrJrJsO  yH F    rrJc0eZdZdZejZdZdZdZ dS) ESMTPFactorya An ESMTP server protocol factory. @type protocol: no-argument callable which returns a L{Protocol } subclass @ivar protocol: A callable which creates a protocol. The default value is L{ESMTP}. @type context: L{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 } subclass provider. @ivar challengers: A mapping of acceptable authorization mechanism to callable which creates credentials to use for authentication. NcFtj|g|Rdti|_dS)zk @param args: Arguments for L{SMTPFactory.__init__} @see: L{SMTPFactory.__init__} sCRAM-MD5N)rJrr challengers)rargss rrzESMTPFactory.__init__s1 T)D))))');<rclt||}|j|_|j|_|S)a Create an instance of an ESMTP server protocol. @type addr: L{IAddress } provider @param addr: The address of the ESMTP client. @rtype: L{ESMTP} @return: An ESMTP protocol. )rJrOrWcontextctxrPs rrOzESMTPFactory.buildProtocols1  % %dD 1 1(  r) r=r>r?r@r ESMTPr rZrrOrCrrrUrUsJ(zHG===     rrUc,eZdZdZdZdZdZdZdZdS) 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|}|t j|j||dtjS#t$r#tj tcYSwxYw)a1 Perform APOP authentication. Override the default lookup scheme to allow virtual domains. @type user: L{bytes} @param user: The name of the user attempting to log in. @type digest: L{bytes} @param digest: The challenge response. @rtype: L{Deferred} which successfully results in 3-L{tuple} of (L{IMailbox }, L{IMailbox } provider, no-argument callable) @return: A deferred which fires when authentication is complete. If successful, it returns an L{IMailbox } interface, a mailbox and a logout function. If authentication fails, the deferred fails with an L{UnauthorizedLogin } error. N) lookupDomainr lookupPortalloginr APOPCredentialsmagicIMailboxKeyErrorrfailr)rrdigestr3rLs rauthenticateUserAPOPz VirtualPOP3.authenticateUserAPOP s*((.. f \..v66F<<$TZv>>dm  3 3 3:/1122 2 2 2 3sA..*BBc&||\}} |j|}|t ||dt jS#t$r#tj tcYSwxYw)aY Perform authentication for a username/password login. Override the default lookup scheme to allow virtual domains. @type user: L{bytes} @param user: The name of the user attempting to log in. @type password: L{bytes} @param password: The password to authenticate with. @rtype: L{Deferred} which successfully results in 3-L{tuple} of (L{IMailbox }, L{IMailbox } provider, no-argument callable) @return: A deferred which fires when authentication is complete. If successful, it returns an L{IMailbox } interface, a mailbox and a logout function. If authentication fails, the deferred fails with an L{UnauthorizedLogin } error. N) rarrbrcrr rfrgrrhr)rrpasswordr3rLs rauthenticateUserPASSz VirtualPOP3.authenticateUserPASS+s*((.. f W\..v66F<< 0x @ @$ VV V 3 3 3:/1122 2 2 2 3sA##*BBc ||jd\}}n#t$rd}YnwxYw||jjvr:t jd|d||fS)a Check whether a domain is among the virtual domains supported by the mail service. @type user: L{bytes} @param user: An email address. @rtype: 2-L{tuple} of (L{bytes}, L{bytes}) @return: The local part and the domain part of the email address if the domain is supported. @raise POP3Error: When the domain is not supported by the mail service. rrzno such domain {}zutf-8) splitdomainSpecifier ValueErrorrr0r POP3Errorformatdecode)rrr3s rrazVirtualPOP3.lookupDomainHs ::d&:A>>LD&&   FFF  - - -.!4!;!;FMM'r?r@rrprjrmrarCrrr^r^sZ  GO>WWW:rr^c&eZdZdZeZdZdZdZdS) POP3Factorya A POP3 server protocol factory. @ivar service: See L{__init__} @type protocol: no-argument callable which returns a L{Protocol } subclass @ivar protocol: A callable which creates a protocol. The default value is L{VirtualPOP3}. Nc||_dS)zY @type service: L{MailService} @param service: An email service. N)r)rrs rrzPOP3Factory.__init__ns  rc^tj||}|j|_|S)a Create an instance of a POP3 server protocol. @type addr: L{IAddress } provider @param addr: The address of the POP3 client. @rtype: L{POP3} @return: A POP3 protocol. )r ServerFactoryrOrrPs rrOzPOP3Factory.buildProtocolus*  " 0 0t < <L r) r=r>r?r@r^r rrrOrCrrrvrv_sH  HG     rrvN)r@zope.interfacertwisted.copyrightrtwisted.cred.credentialsrrtwisted.cred.errorrtwisted.internetrr twisted.mailr r r twisted.pythonr IMessageDeliveryrrErHrJrUPOP3r^ryrvrCrrrs   '&&&&&))))))IIIIIIII000000,,,,,,,,********** T "##rrrrrrr$#rj+,+++++$"+++\.....;...bccccc$)cccL"""""(("""""r