Mercurial > libervia-backend

annotate src/plugins/plugin_misc_smtp.py @ 2307:8fa7edd0da24

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plugin Pubsub Hook: first draft: This new plugin allow to attach an external action to a Pubsub event (i.e. notification). Hook can be persitent accross restarts, or temporary (will be deleted on profile disconnection). Only Python files are handled for now. In the future, it may make sense to move hooks in a generic plugin which could be used by ad-hoc commands, messages, pubsub, etc.
author Goffi <goffi@goffi.org>
date Wed, 05 Jul 2017 15:05:47 +0200
parents 33c8c4973743
children
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1934
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SàT plugin for managing smtp server
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5 # Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
609
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
609
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 from sat.core.constants import Const as C
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22 from sat.core.log import getLogger
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23 log = getLogger(__name__)
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24 from twisted.internet import defer
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25 from twisted.cred import portal, checkers, credentials
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26 from twisted.cred import error as cred_error
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27 from twisted.mail import smtp
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28 from twisted.python import failure
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29 from email.parser import Parser
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30 from email.utils import parseaddr
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31 from twisted.mail.imap4 import LOGINCredentials, PLAINCredentials
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32 from twisted.internet import reactor
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33 import sys
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34
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35 from zope.interface import implements
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36
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37 PLUGIN_INFO = {
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38 C.PI_NAME: "SMTP server Plugin",
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39 C.PI_IMPORT_NAME: "SMTP",
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40 C.PI_TYPE: "Misc",
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41 C.PI_PROTOCOLS: [],
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42 C.PI_DEPENDENCIES: ["Maildir"],
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43 C.PI_MAIN: "SMTP_server",
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44 C.PI_HANDLER: "no",
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45 C.PI_DESCRIPTION: _("""Create a SMTP server that you can use to send your "normal" type messages""")
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46 }
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48
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49 class SMTP_server(object):
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50
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51 params = """
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52 <params>
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53 <general>
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54 <category name="Mail Server">
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55 <param name="SMTP Port" value="10125" type="int" constraint="1;65535" />
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56 </category>
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57 </general>
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58 </params>
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59 """
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60
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61 def __init__(self, host):
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62 log.info(_("Plugin SMTP Server initialization"))
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63 self.host = host
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64
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65 #parameters
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66 host.memory.updateParams(self.params)
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67
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68 port = int(self.host.memory.getParamA("SMTP Port", "Mail Server"))
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69 log.info(_("Launching SMTP server on port %d") % port)
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71 self.server_factory = SmtpServerFactory(self.host)
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72 reactor.listenTCP(port, self.server_factory)
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74
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75 class SatSmtpMessage(object):
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76 implements(smtp.IMessage)
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77
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78 def __init__(self, host, profile):
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79 self.host = host
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80 self.profile = profile
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81 self.message = []
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82
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83 def lineReceived(self, line):
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84 """handle another line"""
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85 self.message.append(line)
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86
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87 def eomReceived(self):
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88 """handle end of message"""
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89 mail = Parser().parsestr("\n".join(self.message))
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90 try:
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91 self.host._sendMessage(parseaddr(mail['to'].decode('utf-8', 'replace'))[1], mail.get_payload().decode('utf-8', 'replace'), # TODO: manage other charsets
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92 subject=mail['subject'].decode('utf-8', 'replace'), mess_type='normal', profile_key=self.profile)
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93 except:
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94 exc_type, exc_value, exc_traceback = sys.exc_info()
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95 log.error(_(u"Can't send message: %s") % exc_value) # The email is invalid or incorreclty parsed
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96 return defer.fail()
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97 self.message = None
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98 return defer.succeed(None)
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99
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100 def connectionLost(self):
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101 """handle message truncated"""
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102 raise smtp.SMTPError
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103
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104
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105 class SatSmtpDelivery(object):
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106 implements(smtp.IMessageDelivery)
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107
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108 def __init__(self, host, profile):
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109 self.host = host
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110 self.profile = profile
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111
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112 def receivedHeader(self, helo, origin, recipients):
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113 """
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114 Generate the Received header for a message
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115 @param helo: The argument to the HELO command and the client's IP
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116 address.
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117 @param origin: The address the message is from
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118 @param recipients: A list of the addresses for which this message
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119 is bound.
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120 @return: The full \"Received\" header string.
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121 """
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122 return "Received:"
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123
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124 def validateTo(self, user):
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125 """
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126 Validate the address for which the message is destined.
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127 @param user: The address to validate.
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128 @return: A Deferred which becomes, or a callable which
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129 takes no arguments and returns an object implementing IMessage.
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130 This will be called and the returned object used to deliver the
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131 message when it arrives.
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132 """
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133 return lambda: SatSmtpMessage(self.host, self.profile)
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134
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135 def validateFrom(self, helo, origin):
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136 """
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137 Validate the address from which the message originates.
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138 @param helo: The argument to the HELO command and the client's IP
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139 address.
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140 @param origin: The address the message is from
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141 @return: origin or a Deferred whose callback will be
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142 passed origin.
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143 """
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144 return origin
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145
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146
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147 class SmtpRealm(object):
260
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148 implements(portal.IRealm)
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149
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150 def __init__(self, host):
260
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151 self.host = host
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152
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153 def requestAvatar(self, avatarID, mind, *interfaces):
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154 log.debug('requestAvatar')
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155 profile = avatarID.decode('utf-8')
260
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156 if smtp.IMessageDelivery not in interfaces:
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157 raise NotImplementedError
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158 return smtp.IMessageDelivery, SatSmtpDelivery(self.host, profile), lambda: None
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159
260
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160
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161 class SatProfileCredentialChecker(object):
260
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162 """
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163 This credential checker check against SàT's profile and associated jabber's password
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164 Check if the profile exists, and if the password is OK
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165 Return the profile as avatarId
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166 """
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167 implements(checkers.ICredentialsChecker)
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168 credentialInterfaces = (credentials.IUsernamePassword,
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169 credentials.IUsernameHashedPassword)
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170
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171 def __init__(self, host):
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172 self.host = host
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173
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174 def _cbPasswordMatch(self, matched, profile):
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175 if matched:
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176 return profile.encode('utf-8')
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177 else:
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178 return failure.Failure(cred_error.UnauthorizedLogin())
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179
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180 def requestAvatarId(self, credentials):
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181 profiles = self.host.memory.getProfilesList()
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182 if not credentials.username in profiles:
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183 return defer.fail(cred_error.UnauthorizedLogin())
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184 d = self.host.memory.asyncGetParamA("Password", "Connection", profile_key=credentials.username)
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185 d.addCallback(credentials.checkPassword)
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186 d.addCallback(self._cbPasswordMatch, credentials.username)
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187 return d
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188
260
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189
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190 class SmtpServerFactory(smtp.SMTPFactory):
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191
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192 def __init__(self, host):
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193 self.protocol = smtp.ESMTP
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194 self.host = host
260
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195 _portal = portal.Portal(SmtpRealm(self.host))
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196 _portal.registerChecker(SatProfileCredentialChecker(self.host))
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197 smtp.SMTPFactory.__init__(self, _portal)
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198
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199 def startedConnecting(self, connector):
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200 log.debug(_("SMTP server connection started"))
260
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201 smtp.SMTPFactory.startedConnecting(self, connector)
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202
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203 def clientConnectionLost(self, connector, reason):
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204 log.debug(_(u"SMTP server connection lost (reason: %s)"), reason)
260
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205 smtp.SMTPFactory.clientConnectionLost(self, connector, reason)
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206
260
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207 def buildProtocol(self, addr):
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208 p = smtp.SMTPFactory.buildProtocol(self, addr)
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209 # add the challengers from imap4, more secure and complicated challengers are available
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210 p.challengers = {"LOGIN": LOGINCredentials, "PLAIN": PLAINCredentials}
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211 return p