Mercurial > libervia-backend

annotate src/plugins/plugin_misc_smtp.py @ 751:1def5b7edf9f

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core, bridge: better GenericException handling
author Goffi <goffi@goffi.org>
date Tue, 17 Dec 2013 00:56:39 +0100
parents 4f747d7fde8c
children bfabeedbf32e
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1 #!/usr/bin/python
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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
609
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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 logging import debug, info, error
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21 import warnings
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22 from twisted.internet import protocol, defer
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23 from twisted.words.protocols.jabber import error as jab_error
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24 from twisted.cred import portal, checkers, credentials
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25 from twisted.cred import error as cred_error
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26 from twisted.mail import smtp
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27 from twisted.python import failure
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28 from email.parser import Parser
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29 from email.utils import parseaddr
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30 from twisted.mail.imap4 import LOGINCredentials, PLAINCredentials
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31 import os
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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 "name": "SMTP server Plugin",
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39 "import_name": "SMTP",
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40 "type": "Misc",
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41 "protocols": [],
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42 "dependencies": ["Maildir"],
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43 "main": "SMTP_server",
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44 "handler": "no",
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45 "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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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="string" />
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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 info(_("Plugin SMTP Server initialization"))
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63 self.host = host
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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 info(_("Launching SMTP server on port %d"), port)
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70
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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 error(_("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 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 password = self.host.memory.getParamA("Password", "Connection", profile_key=credentials.username)
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185 return defer.maybeDeferred(credentials.checkPassword,
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186 password).addCallback(self._cbPasswordMatch,
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187 credentials.username)
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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
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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 debug(_("SMTP server connection started"))
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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 debug(_("SMTP server connection lost (reason: %s)"), reason)
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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