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annotate src/plugins/plugin_misc_smtp.py @ 1526:bb451fd1cea3

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plugin XEP-0300: hashes management first draft
author Goffi <goffi@goffi.org>
date Fri, 25 Sep 2015 19:19:12 +0200
parents 3265a2639182
children 2daf7b4c6756
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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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.log import getLogger
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22 log = getLogger(__name__)
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23 from twisted.internet import defer
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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 from twisted.internet import reactor
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32 import sys
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33
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34 from zope.interface import implements
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35
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36 PLUGIN_INFO = {
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37 "name": "SMTP server Plugin",
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38 "import_name": "SMTP",
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39 "type": "Misc",
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40 "protocols": [],
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41 "dependencies": ["Maildir"],
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42 "main": "SMTP_server",
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43 "handler": "no",
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44 "description": _("""Create a SMTP server that you can use to send your "normal" type messages""")
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45 }
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47
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48 class SMTP_server(object):
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50 params = """
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51 <params>
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52 <general>
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53 <category name="Mail Server">
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54 <param name="SMTP Port" value="10125" type="int" constraint="1;65535" />
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55 </category>
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56 </general>
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57 </params>
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58 """
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59
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60 def __init__(self, host):
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61 log.info(_("Plugin SMTP Server initialization"))
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62 self.host = host
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63
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64 #parameters
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65 host.memory.updateParams(self.params)
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66
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67 port = int(self.host.memory.getParamA("SMTP Port", "Mail Server"))
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68 log.info(_("Launching SMTP server on port %d") % port)
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69
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70 self.server_factory = SmtpServerFactory(self.host)
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71 reactor.listenTCP(port, self.server_factory)
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73
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74 class SatSmtpMessage(object):
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75 implements(smtp.IMessage)
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76
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77 def __init__(self, host, profile):
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78 self.host = host
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79 self.profile = profile
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80 self.message = []
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81
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82 def lineReceived(self, line):
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83 """handle another line"""
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84 self.message.append(line)
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85
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86 def eomReceived(self):
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87 """handle end of message"""
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88 mail = Parser().parsestr("\n".join(self.message))
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89 try:
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90 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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91 subject=mail['subject'].decode('utf-8', 'replace'), mess_type='normal', profile_key=self.profile)
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92 except:
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93 exc_type, exc_value, exc_traceback = sys.exc_info()
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94 log.error(_(u"Can't send message: %s") % exc_value) # The email is invalid or incorreclty parsed
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95 return defer.fail()
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96 self.message = None
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97 return defer.succeed(None)
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98
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99 def connectionLost(self):
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100 """handle message truncated"""
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101 raise smtp.SMTPError
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102
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103
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104 class SatSmtpDelivery(object):
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105 implements(smtp.IMessageDelivery)
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106
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107 def __init__(self, host, profile):
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108 self.host = host
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109 self.profile = profile
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110
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111 def receivedHeader(self, helo, origin, recipients):
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112 """
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113 Generate the Received header for a message
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114 @param helo: The argument to the HELO command and the client's IP
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115 address.
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116 @param origin: The address the message is from
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117 @param recipients: A list of the addresses for which this message
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118 is bound.
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119 @return: The full \"Received\" header string.
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120 """
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121 return "Received:"
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122
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123 def validateTo(self, user):
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124 """
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125 Validate the address for which the message is destined.
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126 @param user: The address to validate.
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127 @return: A Deferred which becomes, or a callable which
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128 takes no arguments and returns an object implementing IMessage.
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129 This will be called and the returned object used to deliver the
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130 message when it arrives.
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131 """
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132 return lambda: SatSmtpMessage(self.host, self.profile)
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133
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134 def validateFrom(self, helo, origin):
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135 """
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136 Validate the address from which the message originates.
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137 @param helo: The argument to the HELO command and the client's IP
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138 address.
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139 @param origin: The address the message is from
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140 @return: origin or a Deferred whose callback will be
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141 passed origin.
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142 """
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143 return origin
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144
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145
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146 class SmtpRealm(object):
260
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147 implements(portal.IRealm)
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148
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149 def __init__(self, host):
260
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150 self.host = host
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151
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152 def requestAvatar(self, avatarID, mind, *interfaces):
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153 log.debug('requestAvatar')
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154 profile = avatarID.decode('utf-8')
260
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155 if smtp.IMessageDelivery not in interfaces:
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156 raise NotImplementedError
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157 return smtp.IMessageDelivery, SatSmtpDelivery(self.host, profile), lambda: None
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158
260
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159
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160 class SatProfileCredentialChecker(object):
260
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161 """
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162 This credential checker check against SàT's profile and associated jabber's password
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163 Check if the profile exists, and if the password is OK
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164 Return the profile as avatarId
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165 """
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166 implements(checkers.ICredentialsChecker)
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167 credentialInterfaces = (credentials.IUsernamePassword,
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168 credentials.IUsernameHashedPassword)
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169
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170 def __init__(self, host):
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171 self.host = host
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172
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173 def _cbPasswordMatch(self, matched, profile):
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174 if matched:
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175 return profile.encode('utf-8')
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176 else:
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177 return failure.Failure(cred_error.UnauthorizedLogin())
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178
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179 def requestAvatarId(self, credentials):
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180 profiles = self.host.memory.getProfilesList()
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181 if not credentials.username in profiles:
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182 return defer.fail(cred_error.UnauthorizedLogin())
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183 d = self.host.memory.asyncGetParamA("Password", "Connection", profile_key=credentials.username)
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184 d.addCallback(credentials.checkPassword)
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185 d.addCallback(self._cbPasswordMatch, credentials.username)
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186 return d
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187
260
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188
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189 class SmtpServerFactory(smtp.SMTPFactory):
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190
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191 def __init__(self, host):
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192 self.protocol = smtp.ESMTP
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193 self.host = host
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194 _portal = portal.Portal(SmtpRealm(self.host))
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195 _portal.registerChecker(SatProfileCredentialChecker(self.host))
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196 smtp.SMTPFactory.__init__(self, _portal)
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197
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198 def startedConnecting(self, connector):
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199 log.debug(_("SMTP server connection started"))
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200 smtp.SMTPFactory.startedConnecting(self, connector)
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201
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202 def clientConnectionLost(self, connector, reason):
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203 log.debug(_(u"SMTP server connection lost (reason: %s)"), reason)
260
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204 smtp.SMTPFactory.clientConnectionLost(self, connector, reason)
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205
260
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206 def buildProtocol(self, addr):
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207 p = smtp.SMTPFactory.buildProtocol(self, addr)
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208 # add the challengers from imap4, more secure and complicated challengers are available
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209 p.challengers = {"LOGIN": LOGINCredentials, "PLAIN": PLAINCredentials}
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210 return p