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annotate src/plugins/plugin_misc_smtp.py @ 598:af900f49df89

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misc: add ctags_links to .hgignore
author Goffi <goffi@goffi.org>
date Wed, 20 Feb 2013 20:08:15 +0100
parents e629371a28d3
children 6fd1095b2b7b
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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 """
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5 SàT plugin for managing smtp server
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6 Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org)
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7
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8 This program is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU Affero General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU Affero General Public License for more details.
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17
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18 You should have received a copy of the GNU Affero General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """
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21
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22 from logging import debug, info, error
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23 import warnings
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24 from twisted.internet import protocol, defer
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25 from twisted.words.protocols.jabber import error as jab_error
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26 from twisted.cred import portal, checkers, credentials
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27 from twisted.cred import error as cred_error
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28 from twisted.mail import smtp
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29 from twisted.python import failure
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30 from email.parser import Parser
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31 from email.utils import parseaddr
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32 from twisted.mail.imap4 import LOGINCredentials, PLAINCredentials
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33 import os
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34 from twisted.internet import reactor
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35 import sys
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36
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37 from zope.interface import implements
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38
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39 PLUGIN_INFO = {
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40 "name": "SMTP server Plugin",
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41 "import_name": "SMTP",
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42 "type": "Misc",
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43 "protocols": [],
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44 "dependencies": ["Maildir"],
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45 "main": "SMTP_server",
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46 "handler": "no",
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47 "description": _("""Create a SMTP server that you can use to send your "normal" type messages""")
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48 }
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49
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50
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51 class SMTP_server(object):
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52
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53 params = """
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54 <params>
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55 <general>
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56 <category name="Mail Server">
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57 <param name="SMTP Port" value="10125" type="string" />
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58 </category>
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59 </general>
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60 </params>
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61 """
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62
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63 def __init__(self, host):
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64 info(_("Plugin SMTP Server initialization"))
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65 self.host = host
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66
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67 #parameters
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68 host.memory.importParams(self.params)
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69
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70 port = int(self.host.memory.getParamA("SMTP Port", "Mail Server"))
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71 info(_("Launching SMTP server on port %d"), port)
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72
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73 self.server_factory = SmtpServerFactory(self.host)
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74 reactor.listenTCP(port, self.server_factory)
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75
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76
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77 class SatSmtpMessage(object):
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78 implements(smtp.IMessage)
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79
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80 def __init__(self, host, profile):
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81 self.host = host
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82 self.profile = profile
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83 self.message = []
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84
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85 def lineReceived(self, line):
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86 """handle another line"""
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87 self.message.append(line)
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88
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89 def eomReceived(self):
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90 """handle end of message"""
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91 mail = Parser().parsestr("\n".join(self.message))
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92 try:
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93 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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94 subject=mail['subject'].decode('utf-8', 'replace'), mess_type='normal', profile_key=self.profile)
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95 except:
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96 exc_type, exc_value, exc_traceback = sys.exc_info()
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97 error(_("Can't send message: %s") % exc_value) # The email is invalid or incorreclty parsed
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98 return defer.fail()
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99 self.message = None
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100 return defer.succeed(None)
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101
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102 def connectionLost(self):
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103 """handle message truncated"""
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104 raise smtp.SMTPError
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105
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106
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107 class SatSmtpDelivery(object):
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108 implements(smtp.IMessageDelivery)
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109
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110 def __init__(self, host, profile):
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111 self.host = host
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112 self.profile = profile
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113
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114 def receivedHeader(self, helo, origin, recipients):
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115 """
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116 Generate the Received header for a message
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117 @param helo: The argument to the HELO command and the client's IP
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118 address.
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119 @param origin: The address the message is from
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120 @param recipients: A list of the addresses for which this message
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121 is bound.
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122 @return: The full \"Received\" header string.
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123 """
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124 return "Received:"
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125
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126 def validateTo(self, user):
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127 """
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128 Validate the address for which the message is destined.
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129 @param user: The address to validate.
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130 @return: A Deferred which becomes, or a callable which
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131 takes no arguments and returns an object implementing IMessage.
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132 This will be called and the returned object used to deliver the
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133 message when it arrives.
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134 """
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135 return lambda: SatSmtpMessage(self.host, self.profile)
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136
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137 def validateFrom(self, helo, origin):
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138 """
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139 Validate the address from which the message originates.
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140 @param helo: The argument to the HELO command and the client's IP
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141 address.
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142 @param origin: The address the message is from
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143 @return: origin or a Deferred whose callback will be
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144 passed origin.
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145 """
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146 return origin
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147
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148
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149 class SmtpRealm(object):
260
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150 implements(portal.IRealm)
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151
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152 def __init__(self, host):
260
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153 self.host = host
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154
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155 def requestAvatar(self, avatarID, mind, *interfaces):
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156 debug('requestAvatar')
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157 profile = avatarID.decode('utf-8')
260
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158 if smtp.IMessageDelivery not in interfaces:
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159 raise NotImplementedError
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160 return smtp.IMessageDelivery, SatSmtpDelivery(self.host, profile), lambda: None
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161
260
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162
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163 class SatProfileCredentialChecker(object):
260
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164 """
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165 This credential checker check against SàT's profile and associated jabber's password
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166 Check if the profile exists, and if the password is OK
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167 Return the profile as avatarId
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168 """
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169 implements(checkers.ICredentialsChecker)
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170 credentialInterfaces = (credentials.IUsernamePassword,
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171 credentials.IUsernameHashedPassword)
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172
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173 def __init__(self, host):
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174 self.host = host
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175
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176 def _cbPasswordMatch(self, matched, profile):
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177 if matched:
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178 return profile.encode('utf-8')
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179 else:
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180 return failure.Failure(cred_error.UnauthorizedLogin())
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181
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182 def requestAvatarId(self, credentials):
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183 profiles = self.host.memory.getProfilesList()
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184 if not credentials.username in profiles:
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185 return defer.fail(cred_error.UnauthorizedLogin())
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186 password = self.host.memory.getParamA("Password", "Connection", profile_key=credentials.username)
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187 return defer.maybeDeferred(credentials.checkPassword,
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188 password).addCallback(self._cbPasswordMatch,
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189 credentials.username)
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190
260
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191
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192 class SmtpServerFactory(smtp.SMTPFactory):
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193
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194 def __init__(self, host):
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195 self.protocol = smtp.ESMTP
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196 self.host = host
260
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197 _portal = portal.Portal(SmtpRealm(self.host))
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198 _portal.registerChecker(SatProfileCredentialChecker(self.host))
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199 smtp.SMTPFactory.__init__(self, _portal)
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200
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201 def startedConnecting(self, connector):
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202 debug(_("SMTP server connection started"))
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203 smtp.SMTPFactory.startedConnecting(self, connector)
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204
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205 def clientConnectionLost(self, connector, reason):
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206 debug(_("SMTP server connection lost (reason: %s)"), reason)
260
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207 smtp.SMTPFactory.clientConnectionLost(self, connector, reason)
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208
260
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209 def buildProtocol(self, addr):
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210 p = smtp.SMTPFactory.buildProtocol(self, addr)
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211 # add the challengers from imap4, more secure and complicated challengers are available
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212 p.challengers = {"LOGIN": LOGINCredentials, "PLAIN": PLAINCredentials}
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213 return p