Mercurial > libervia-backend
view src/plugins/plugin_misc_smtp.py @ 1559:7cc29634b6ef
plugin XEP-0065, XEP-0096: preparation for plugin XEP-0260 implementation:
/!\ SI File Transfert (plugin XEP-0096) is temporarily broken
/!\ proxy handling is temporarily broken
plugin XEP-0096: use of Deferred for plugin XEP-0065 in the same way as for plugin XEP-0047
plugin XEP-0065:
- use of Deferred for sessions
- plugin IP is a dependency
- plugin NAT-PORT is used if available
- everything is now automatic, params are disabled for now (may be re-used in the future to force port or proxy)
- proxy infos are managed with a namedtuple
- connexion candidates are managed with a dedicate class
- priorities can be used for candidates, as needed for XEP-0260
- transfer can now be managed in both direction, with client or server
- socks5 server is launcher on demand, once for all profiles
- helper methods to try and find best candidate
- connection test and file transfer are done in 2 times
author | Goffi <goffi@goffi.org> |
---|---|
date | Mon, 02 Nov 2015 22:02:41 +0100 |
parents | 3265a2639182 |
children | 2daf7b4c6756 |
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#!/usr/bin/python # -*- coding: utf-8 -*- # SàT plugin for managing smtp server # Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) from twisted.internet import defer from twisted.cred import portal, checkers, credentials from twisted.cred import error as cred_error from twisted.mail import smtp from twisted.python import failure from email.parser import Parser from email.utils import parseaddr from twisted.mail.imap4 import LOGINCredentials, PLAINCredentials from twisted.internet import reactor import sys from zope.interface import implements PLUGIN_INFO = { "name": "SMTP server Plugin", "import_name": "SMTP", "type": "Misc", "protocols": [], "dependencies": ["Maildir"], "main": "SMTP_server", "handler": "no", "description": _("""Create a SMTP server that you can use to send your "normal" type messages""") } class SMTP_server(object): params = """ <params> <general> <category name="Mail Server"> <param name="SMTP Port" value="10125" type="int" constraint="1;65535" /> </category> </general> </params> """ def __init__(self, host): log.info(_("Plugin SMTP Server initialization")) self.host = host #parameters host.memory.updateParams(self.params) port = int(self.host.memory.getParamA("SMTP Port", "Mail Server")) log.info(_("Launching SMTP server on port %d") % port) self.server_factory = SmtpServerFactory(self.host) reactor.listenTCP(port, self.server_factory) class SatSmtpMessage(object): implements(smtp.IMessage) def __init__(self, host, profile): self.host = host self.profile = profile self.message = [] def lineReceived(self, line): """handle another line""" self.message.append(line) def eomReceived(self): """handle end of message""" mail = Parser().parsestr("\n".join(self.message)) try: self.host._sendMessage(parseaddr(mail['to'].decode('utf-8', 'replace'))[1], mail.get_payload().decode('utf-8', 'replace'), # TODO: manage other charsets subject=mail['subject'].decode('utf-8', 'replace'), mess_type='normal', profile_key=self.profile) except: exc_type, exc_value, exc_traceback = sys.exc_info() log.error(_(u"Can't send message: %s") % exc_value) # The email is invalid or incorreclty parsed return defer.fail() self.message = None return defer.succeed(None) def connectionLost(self): """handle message truncated""" raise smtp.SMTPError class SatSmtpDelivery(object): implements(smtp.IMessageDelivery) def __init__(self, host, profile): self.host = host self.profile = profile def receivedHeader(self, helo, origin, recipients): """ Generate the Received header for a message @param helo: The argument to the HELO command and the client's IP address. @param origin: The address the message is from @param recipients: A list of the addresses for which this message is bound. @return: The full \"Received\" header string. """ return "Received:" def validateTo(self, user): """ Validate the address for which the message is destined. @param user: The address to validate. @return: A Deferred which becomes, or a callable which takes no arguments and returns an object implementing IMessage. This will be called and the returned object used to deliver the message when it arrives. """ return lambda: SatSmtpMessage(self.host, self.profile) def validateFrom(self, helo, origin): """ Validate the address from which the message originates. @param helo: The argument to the HELO command and the client's IP address. @param origin: The address the message is from @return: origin or a Deferred whose callback will be passed origin. """ return origin class SmtpRealm(object): implements(portal.IRealm) def __init__(self, host): self.host = host def requestAvatar(self, avatarID, mind, *interfaces): log.debug('requestAvatar') profile = avatarID.decode('utf-8') if smtp.IMessageDelivery not in interfaces: raise NotImplementedError return smtp.IMessageDelivery, SatSmtpDelivery(self.host, profile), lambda: None class SatProfileCredentialChecker(object): """ This credential checker check against SàT's profile and associated jabber's password Check if the profile exists, and if the password is OK Return the profile as avatarId """ implements(checkers.ICredentialsChecker) credentialInterfaces = (credentials.IUsernamePassword, credentials.IUsernameHashedPassword) def __init__(self, host): self.host = host def _cbPasswordMatch(self, matched, profile): if matched: return profile.encode('utf-8') else: return failure.Failure(cred_error.UnauthorizedLogin()) def requestAvatarId(self, credentials): profiles = self.host.memory.getProfilesList() if not credentials.username in profiles: return defer.fail(cred_error.UnauthorizedLogin()) d = self.host.memory.asyncGetParamA("Password", "Connection", profile_key=credentials.username) d.addCallback(credentials.checkPassword) d.addCallback(self._cbPasswordMatch, credentials.username) return d class SmtpServerFactory(smtp.SMTPFactory): def __init__(self, host): self.protocol = smtp.ESMTP self.host = host _portal = portal.Portal(SmtpRealm(self.host)) _portal.registerChecker(SatProfileCredentialChecker(self.host)) smtp.SMTPFactory.__init__(self, _portal) def startedConnecting(self, connector): log.debug(_("SMTP server connection started")) smtp.SMTPFactory.startedConnecting(self, connector) def clientConnectionLost(self, connector, reason): log.debug(_(u"SMTP server connection lost (reason: %s)"), reason) smtp.SMTPFactory.clientConnectionLost(self, connector, reason) def buildProtocol(self, addr): p = smtp.SMTPFactory.buildProtocol(self, addr) # add the challengers from imap4, more secure and complicated challengers are available p.challengers = {"LOGIN": LOGINCredentials, "PLAIN": PLAINCredentials} return p