Mercurial > libervia-backend
annotate sat/plugins/plugin_sec_otr.py @ 2816:114cdde9ff96
plugin XEP-0280: priority and "sent" fixes:
- carbon prioriy must be bigger than ones of encryption plugins, because the carbon copied messages must be unwrapped to be decrypted, this patch fixes it
- "sent" carbon elements was only stored and notified to frontends, it is now unwrapped and injected in normal traffic, this way other plugin can manage it, in particular encrypted elements can be decrypted
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 28 Feb 2019 18:57:06 +0100 |
| parents | ba2e03ee7c4f |
| children | 7ab8684784c6 |
| rev | line source |
|---|---|
|
1934
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1 #!/usr/bin/env python2 |
| 1055 | 2 # -*- coding: utf-8 -*- |
| 3 | |
| 4 # SAT plugin for OTR encryption | |
| 2771 | 5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) |
| 1055 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
|
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20 # XXX: thanks to Darrik L Mazey for his documentation |
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21 # (https://blog.darmasoft.net/2013/06/30/using-pure-python-otr.html) |
| 1055 | 22 # this implentation is based on it |
| 23 | |
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24 from sat.core.i18n import _, D_ |
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25 from sat.core.constants import Const as C |
| 1055 | 26 from sat.core.log import getLogger |
| 27 from sat.core import exceptions | |
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28 |
| 1055 | 29 log = getLogger(__name__) |
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30 from sat.tools import xml_tools |
| 1055 | 31 from twisted.words.protocols.jabber import jid |
| 32 from twisted.python import failure | |
| 1095 | 33 from twisted.internet import defer |
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34 from sat.memory import persistent |
| 1055 | 35 import potr |
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36 import copy |
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37 import time |
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38 import uuid |
| 1095 | 39 |
| 2125 | 40 |
| 1055 | 41 PLUGIN_INFO = { |
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42 C.PI_NAME: u"OTR", |
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43 C.PI_IMPORT_NAME: u"OTR", |
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44 C.PI_TYPE: u"SEC", |
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45 C.PI_PROTOCOLS: [u"XEP-0364"], |
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46 C.PI_DEPENDENCIES: [u"XEP-0280", u"XEP-0334"], |
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47 C.PI_MAIN: u"OTR", |
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48 C.PI_HANDLER: u"no", |
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49 C.PI_DESCRIPTION: _(u"""Implementation of OTR"""), |
| 1055 | 50 } |
| 51 | |
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52 NS_OTR = "urn:xmpp:otr:0" |
| 2128 | 53 PRIVATE_KEY = "PRIVATE KEY" |
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54 OTR_MENU = D_(u"OTR") |
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55 AUTH_TXT = D_( |
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56 u"To authenticate your correspondent, you need to give your below fingerprint " |
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57 u"*BY AN EXTERNAL CANAL* (i.e. not in this chat), and check that the one he gives " |
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58 u"you is the same as below. If there is a mismatch, there can be a spy between you!" |
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59 ) |
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60 DROP_TXT = D_( |
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61 u"You private key is used to encrypt messages for your correspondent, nobody except " |
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62 u"you must know it, if you are in doubt, you should drop it!\n\nAre you sure you " |
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63 u"want to drop your private key?" |
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64 ) |
| 2128 | 65 # NO_LOG_AND = D_(u"/!\\Your history is not logged anymore, and") # FIXME: not used at the moment |
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66 NO_ADV_FEATURES = D_(u"Some of advanced features are disabled !") |
| 2128 | 67 |
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68 DEFAULT_POLICY_FLAGS = {"ALLOW_V1": False, "ALLOW_V2": True, "REQUIRE_ENCRYPTION": True} |
| 2128 | 69 |
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70 OTR_STATE_TRUSTED = "trusted" |
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71 OTR_STATE_UNTRUSTED = "untrusted" |
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72 OTR_STATE_UNENCRYPTED = "unencrypted" |
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73 OTR_STATE_ENCRYPTED = "encrypted" |
| 2128 | 74 |
| 1055 | 75 |
| 76 class Context(potr.context.Context): | |
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77 def __init__(self, context_manager, other_jid): |
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78 self.context_manager = context_manager |
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79 super(Context, self).__init__(context_manager.account, other_jid) |
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80 |
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81 @property |
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82 def host(self): |
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83 return self.context_manager.host |
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84 |
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85 @property |
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86 def _p_hints(self): |
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87 return self.context_manager.parent._p_hints |
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88 |
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89 @property |
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90 def _p_carbons(self): |
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91 return self.context_manager.parent._p_carbons |
| 1055 | 92 |
| 93 def getPolicy(self, key): | |
| 94 if key in DEFAULT_POLICY_FLAGS: | |
| 95 return DEFAULT_POLICY_FLAGS[key] | |
| 96 else: | |
| 97 return False | |
| 98 | |
| 1095 | 99 def inject(self, msg_str, appdata=None): |
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100 """Inject encrypted data in the stream |
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101 |
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102 if appdata is not None, we are sending a message in sendMessageDataTrigger |
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103 stanza will be injected directly if appdata is None, |
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104 else we just update the element and follow normal workflow |
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105 @param msg_str(str): encrypted message body |
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106 @param appdata(None, dict): None for signal message, |
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107 message data when an encrypted message is going to be sent |
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108 """ |
| 1095 | 109 assert isinstance(self.peer, jid.JID) |
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110 msg = msg_str.decode("utf-8") |
| 1095 | 111 client = self.user.client |
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112 log.debug(u"injecting encrypted message to {to}".format(to=self.peer)) |
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113 if appdata is None: |
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114 mess_data = { |
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115 "from": client.jid, |
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116 "to": self.peer, |
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117 "uid": unicode(uuid.uuid4()), |
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118 "message": {"": msg}, |
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119 "subject": {}, |
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120 "type": "chat", |
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121 "extra": {}, |
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122 "timestamp": time.time(), |
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123 } |
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124 client.generateMessageXML(mess_data) |
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125 xml = mess_data[u'xml'] |
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126 self._p_carbons.setPrivate(xml) |
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127 self._p_hints.addHintElements(xml, [ |
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128 self._p_hints.HINT_NO_COPY, |
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129 self._p_hints.HINT_NO_PERMANENT_STORE]) |
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130 client.send(mess_data["xml"]) |
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131 else: |
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132 message_elt = appdata[u"xml"] |
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133 assert message_elt.name == u"message" |
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134 message_elt.addElement("body", content=msg) |
| 1055 | 135 |
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136 def stopCb(self, __, feedback): |
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137 client = self.user.client |
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138 self.host.bridge.otrState( |
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139 OTR_STATE_UNENCRYPTED, self.peer.full(), client.profile |
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140 ) |
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141 client.feedback(self.peer, feedback) |
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142 |
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143 def stopEb(self, failure_): |
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144 # encryption may be already stopped in case of manual stop |
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145 if not failure_.check(exceptions.NotFound): |
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146 log.error(u"Error while stopping OTR encryption: {msg}".format(msg=failure_)) |
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147 |
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148 def isTrusted(self): |
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149 # we have to check value because potr code says that a 2-tuples should be |
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150 # returned while in practice it's either None or u"trusted" |
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151 trusted = self.getCurrentTrust() |
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152 if trusted is None: |
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153 return False |
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154 elif trusted == u'trusted': |
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155 return True |
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156 else: |
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157 log.error(u"Unexpected getCurrentTrust() value: {value}".format( |
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158 value=trusted)) |
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159 return False |
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160 |
| 1055 | 161 def setState(self, state): |
| 2128 | 162 client = self.user.client |
| 1095 | 163 old_state = self.state |
| 1055 | 164 super(Context, self).setState(state) |
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165 log.debug(u"setState: %s (old_state=%s)" % (state, old_state)) |
| 1095 | 166 |
| 167 if state == potr.context.STATE_PLAINTEXT: | |
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168 feedback = _(u"/!\\ conversation with %(other_jid)s is now UNENCRYPTED") % { |
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169 "other_jid": self.peer.full() |
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170 } |
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171 d = client.encryption.stop(self.peer, NS_OTR) |
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172 d.addCallback(self.stopCb, feedback=feedback) |
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173 d.addErrback(self.stopEb) |
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174 return |
| 1095 | 175 elif state == potr.context.STATE_ENCRYPTED: |
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176 client.encryption.start(self.peer, NS_OTR) |
| 1095 | 177 try: |
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178 trusted = self.isTrusted() |
| 1095 | 179 except TypeError: |
| 180 trusted = False | |
| 181 trusted_str = _(u"trusted") if trusted else _(u"untrusted") | |
| 182 | |
| 183 if old_state == potr.context.STATE_ENCRYPTED: | |
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184 feedback = D_( |
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185 u"{trusted} OTR conversation with {other_jid} REFRESHED" |
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186 ).format(trusted=trusted_str, other_jid=self.peer.full()) |
| 1095 | 187 else: |
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188 feedback = D_( |
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189 u"{trusted} encrypted OTR conversation started with {other_jid}\n" |
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190 u"{extra_info}" |
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191 ).format( |
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192 trusted=trusted_str, |
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193 other_jid=self.peer.full(), |
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194 extra_info=NO_ADV_FEATURES, |
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195 ) |
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196 self.host.bridge.otrState( |
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197 OTR_STATE_ENCRYPTED, self.peer.full(), client.profile |
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198 ) |
| 1095 | 199 elif state == potr.context.STATE_FINISHED: |
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200 feedback = D_(u"OTR conversation with {other_jid} is FINISHED").format( |
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201 other_jid=self.peer.full() |
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202 ) |
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203 d = client.encryption.stop(self.peer, NS_OTR) |
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204 d.addCallback(self.stopCb, feedback=feedback) |
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205 d.addErrback(self.stopEb) |
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206 return |
| 1095 | 207 else: |
| 2125 | 208 log.error(D_(u"Unknown OTR state")) |
| 1095 | 209 return |
| 210 | |
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211 client.feedback(self.peer, feedback) |
| 1055 | 212 |
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213 def disconnect(self): |
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214 """Disconnect the session.""" |
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215 if self.state != potr.context.STATE_PLAINTEXT: |
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216 super(Context, self).disconnect() |
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217 |
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218 def finish(self): |
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219 """Finish the session |
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220 |
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221 avoid to send any message but the user still has to end the session himself. |
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222 """ |
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223 if self.state == potr.context.STATE_ENCRYPTED: |
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224 self.processTLVs([potr.proto.DisconnectTLV()]) |
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225 |
| 1055 | 226 |
| 227 class Account(potr.context.Account): | |
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228 # TODO: manage trusted keys: if a fingerprint is not used anymore, |
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229 # we have no way to remove it from database yet (same thing for a |
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230 # correspondent jid) |
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231 # TODO: manage explicit message encryption |
| 1055 | 232 |
| 1095 | 233 def __init__(self, host, client): |
| 234 log.debug(u"new account: %s" % client.jid) | |
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235 if not client.jid.resource: |
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236 log.warning("Account created without resource") |
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237 super(Account, self).__init__(unicode(client.jid), "xmpp", 1024) |
| 1095 | 238 self.host = host |
| 239 self.client = client | |
| 1055 | 240 |
| 241 def loadPrivkey(self): | |
| 1095 | 242 log.debug(u"loadPrivkey") |
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243 return self.privkey |
| 1055 | 244 |
| 245 def savePrivkey(self): | |
| 1095 | 246 log.debug(u"savePrivkey") |
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247 if self.privkey is None: |
| 2125 | 248 raise exceptions.InternalError(_(u"Save is called but privkey is None !")) |
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249 priv_key = self.privkey.serializePrivateKey().encode("hex") |
| 1095 | 250 d = self.host.memory.encryptValue(priv_key, self.client.profile) |
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251 |
| 1095 | 252 def save_encrypted_key(encrypted_priv_key): |
| 2128 | 253 self.client._otr_data[PRIVATE_KEY] = encrypted_priv_key |
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254 |
| 1095 | 255 d.addCallback(save_encrypted_key) |
| 1055 | 256 |
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257 def loadTrusts(self): |
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258 trust_data = self.client._otr_data.get("trust", {}) |
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259 for jid_, jid_data in trust_data.iteritems(): |
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260 for fingerprint, trust_level in jid_data.iteritems(): |
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261 log.debug( |
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262 u'setting trust for {jid}: [{fingerprint}] = "{trust_level}"'.format( |
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263 jid=jid_, fingerprint=fingerprint, trust_level=trust_level |
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264 ) |
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265 ) |
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266 self.trusts.setdefault(jid.JID(jid_), {})[fingerprint] = trust_level |
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267 |
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268 def saveTrusts(self): |
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269 log.debug(u"saving trusts for {profile}".format(profile=self.client.profile)) |
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270 log.debug(u"trusts = {}".format(self.client._otr_data["trust"])) |
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271 self.client._otr_data.force("trust") |
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272 |
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273 def setTrust(self, other_jid, fingerprint, trustLevel): |
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274 try: |
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275 trust_data = self.client._otr_data["trust"] |
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276 except KeyError: |
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277 trust_data = {} |
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278 self.client._otr_data["trust"] = trust_data |
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279 jid_data = trust_data.setdefault(other_jid.full(), {}) |
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280 jid_data[fingerprint] = trustLevel |
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281 super(Account, self).setTrust(other_jid, fingerprint, trustLevel) |
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282 |
| 1055 | 283 |
| 284 class ContextManager(object): | |
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285 def __init__(self, parent, client): |
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286 self.parent = parent |
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287 self.account = Account(parent.host, client) |
| 1055 | 288 self.contexts = {} |
| 289 | |
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290 @property |
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291 def host(self): |
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292 return self.parent.host |
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293 |
| 1095 | 294 def startContext(self, other_jid): |
| 295 assert isinstance(other_jid, jid.JID) | |
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296 context = self.contexts.setdefault( |
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297 other_jid, Context(self, other_jid) |
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298 ) |
| 1095 | 299 return context |
| 1055 | 300 |
| 301 def getContextForUser(self, other): | |
| 1095 | 302 log.debug(u"getContextForUser [%s]" % other) |
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303 if not other.resource: |
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304 log.warning(u"getContextForUser called with a bare jid: %s" % other.full()) |
| 1055 | 305 return self.startContext(other) |
| 306 | |
| 307 | |
| 308 class OTR(object): | |
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309 |
| 1055 | 310 def __init__(self, host): |
| 1095 | 311 log.info(_(u"OTR plugin initialization")) |
| 1055 | 312 self.host = host |
| 313 self.context_managers = {} | |
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314 self.skipped_profiles = ( |
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315 set() |
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316 ) # FIXME: OTR should not be skipped per profile, this need to be refactored |
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317 self._p_hints = host.plugins[u"XEP-0334"] |
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318 self._p_carbons = host.plugins[u"XEP-0280"] |
| 1055 | 319 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=100000) |
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320 host.trigger.add("sendMessage", self.sendMessageTrigger, priority=100000) |
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321 host.trigger.add("sendMessageData", self._sendMessageDataTrigger) |
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322 host.bridge.addMethod( |
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323 "skipOTR", ".plugin", in_sign="s", out_sign="", method=self._skipOTR |
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324 ) # FIXME: must be removed, must be done on per-message basis |
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325 host.bridge.addSignal( |
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326 "otrState", ".plugin", signature="sss" |
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327 ) # args: state, destinee_jid, profile |
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328 # XXX: menus are disabled in favor to the new more generic encryption menu |
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329 # there are let here commented for a little while as a reference |
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330 # host.importMenu( |
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331 # (OTR_MENU, D_(u"Start/Refresh")), |
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332 # self._otrStartRefresh, |
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333 # security_limit=0, |
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334 # help_string=D_(u"Start or refresh an OTR session"), |
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335 # type_=C.MENU_SINGLE, |
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336 # ) |
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337 # host.importMenu( |
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338 # (OTR_MENU, D_(u"End session")), |
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339 # self._otrSessionEnd, |
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340 # security_limit=0, |
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341 # help_string=D_(u"Finish an OTR session"), |
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342 # type_=C.MENU_SINGLE, |
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343 # ) |
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344 # host.importMenu( |
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345 # (OTR_MENU, D_(u"Authenticate")), |
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346 # self._otrAuthenticate, |
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347 # security_limit=0, |
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348 # help_string=D_(u"Authenticate user/see your fingerprint"), |
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349 # type_=C.MENU_SINGLE, |
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350 # ) |
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351 # host.importMenu( |
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352 # (OTR_MENU, D_(u"Drop private key")), |
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353 # self._dropPrivKey, |
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354 # security_limit=0, |
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355 # type_=C.MENU_SINGLE, |
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356 # ) |
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357 host.trigger.add("presenceReceived", self._presenceReceivedTrigger) |
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358 self.host.registerEncryptionPlugin(self, u"OTR", NS_OTR, directed=True) |
| 1055 | 359 |
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360 def _skipOTR(self, profile): |
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361 """Tell the backend to not handle OTR for this profile. |
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362 |
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363 @param profile (str): %(doc_profile)s |
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364 """ |
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365 # FIXME: should not be done per profile but per message, using extra data |
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366 # for message received, profile wide hook may be need, but client |
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367 # should be used anyway instead of a class attribute |
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368 self.skipped_profiles.add(profile) |
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369 |
| 1095 | 370 @defer.inlineCallbacks |
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371 def profileConnecting(self, client): |
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372 if client.profile in self.skipped_profiles: |
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373 return |
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374 ctxMng = client._otr_context_manager = ContextManager(self, client) |
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375 client._otr_data = persistent.PersistentBinaryDict(NS_OTR, client.profile) |
| 2128 | 376 yield client._otr_data.load() |
| 377 encrypted_priv_key = client._otr_data.get(PRIVATE_KEY, None) | |
| 1095 | 378 if encrypted_priv_key is not None: |
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379 priv_key = yield self.host.memory.decryptValue( |
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380 encrypted_priv_key, client.profile |
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381 ) |
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382 ctxMng.account.privkey = potr.crypt.PK.parsePrivateKey( |
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383 priv_key.decode("hex") |
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384 )[0] |
| 1095 | 385 else: |
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386 ctxMng.account.privkey = None |
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387 ctxMng.account.loadTrusts() |
| 1055 | 388 |
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389 def profileDisconnected(self, client): |
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390 if client.profile in self.skipped_profiles: |
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391 self.skipped_profiles.remove(client.profile) |
| 2128 | 392 return |
| 393 for context in client._otr_context_manager.contexts.values(): | |
| 394 context.disconnect() | |
| 395 del client._otr_context_manager | |
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396 |
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397 # encryption plugin methods |
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398 |
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399 def startEncryption(self, client, entity_jid): |
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400 self.startRefresh(client, entity_jid) |
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401 |
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402 def stopEncryption(self, client, entity_jid): |
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403 self.endSession(client, entity_jid) |
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|
404 |
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405 def getTrustUI(self, client, entity_jid): |
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406 if not entity_jid.resource: |
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407 entity_jid.resource = self.host.memory.getMainResource( |
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|
408 client, entity_jid |
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409 ) # FIXME: temporary and unsecure, must be changed when frontends |
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410 # are refactored |
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411 ctxMng = client._otr_context_manager |
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412 otrctx = ctxMng.getContextForUser(entity_jid) |
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413 priv_key = ctxMng.account.privkey |
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414 |
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415 if priv_key is None: |
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416 # we have no private key yet |
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417 dialog = xml_tools.XMLUI( |
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418 C.XMLUI_DIALOG, |
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419 dialog_opt={ |
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420 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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421 C.XMLUI_DATA_MESS: _( |
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422 u"You have no private key yet, start an OTR conversation to " |
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423 u"have one" |
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424 ), |
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|
425 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_WARNING, |
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426 }, |
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|
427 title=_(u"No private key"), |
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|
428 ) |
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429 return dialog |
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|
430 |
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|
431 other_fingerprint = otrctx.getCurrentKey() |
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432 |
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433 if other_fingerprint is None: |
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434 # we have a private key, but not the fingerprint of our correspondent |
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435 dialog = xml_tools.XMLUI( |
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|
436 C.XMLUI_DIALOG, |
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|
437 dialog_opt={ |
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changeset
|
438 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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|
439 C.XMLUI_DATA_MESS: _( |
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|
440 u"Your fingerprint is:\n{fingerprint}\n\n" |
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|
441 u"Start an OTR conversation to have your correspondent one." |
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|
442 ).format(fingerprint=priv_key), |
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|
443 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_INFO, |
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444 }, |
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|
445 title=_(u"Fingerprint"), |
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446 ) |
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changeset
|
447 return dialog |
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changeset
|
448 |
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|
449 def setTrust(raw_data, profile): |
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|
450 if xml_tools.isXMLUICancelled(raw_data): |
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451 return {} |
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diff
changeset
|
452 # This method is called when authentication form is submited |
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diff
changeset
|
453 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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|
454 if data["match"] == "yes": |
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changeset
|
455 otrctx.setCurrentTrust(OTR_STATE_TRUSTED) |
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|
456 note_msg = _(u"Your correspondent {correspondent} is now TRUSTED") |
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changeset
|
457 self.host.bridge.otrState( |
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changeset
|
458 OTR_STATE_TRUSTED, entity_jid.full(), client.profile |
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|
459 ) |
|
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parents:
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changeset
|
460 else: |
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Goffi <goffi@goffi.org>
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changeset
|
461 otrctx.setCurrentTrust("") |
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changeset
|
462 note_msg = _(u"Your correspondent {correspondent} is now UNTRUSTED") |
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Goffi <goffi@goffi.org>
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changeset
|
463 self.host.bridge.otrState( |
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diff
changeset
|
464 OTR_STATE_UNTRUSTED, entity_jid.full(), client.profile |
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changeset
|
465 ) |
|
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parents:
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changeset
|
466 note = xml_tools.XMLUI( |
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diff
changeset
|
467 C.XMLUI_DIALOG, |
|
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diff
changeset
|
468 dialog_opt={ |
|
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Goffi <goffi@goffi.org>
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diff
changeset
|
469 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_NOTE, |
|
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Goffi <goffi@goffi.org>
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diff
changeset
|
470 C.XMLUI_DATA_MESS: note_msg.format(correspondent=otrctx.peer), |
|
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changeset
|
471 }, |
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parents:
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changeset
|
472 ) |
|
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parents:
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diff
changeset
|
473 return {"xmlui": note.toXml()} |
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parents:
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diff
changeset
|
474 |
|
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changeset
|
475 submit_id = self.host.registerCallback(setTrust, with_data=True, one_shot=True) |
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changeset
|
476 trusted = otrctx.isTrusted() |
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parents:
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diff
changeset
|
477 |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
478 xmlui = xml_tools.XMLUI( |
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Goffi <goffi@goffi.org>
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diff
changeset
|
479 C.XMLUI_FORM, |
|
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Goffi <goffi@goffi.org>
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diff
changeset
|
480 title=_(u"Authentication ({entity_jid})").format(entity_jid=entity_jid.full()), |
|
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parents:
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diff
changeset
|
481 submit_id=submit_id, |
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parents:
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diff
changeset
|
482 ) |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
483 xmlui.addText(_(AUTH_TXT)) |
|
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parents:
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diff
changeset
|
484 xmlui.addDivider() |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
485 xmlui.addText( |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
486 D_(u"Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key) |
|
da59ff099b32
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
487 ) |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
488 xmlui.addText( |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
489 D_(u"Your correspondent fingerprint should be:\n{fingerprint}").format( |
|
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parents:
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diff
changeset
|
490 fingerprint=other_fingerprint |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
491 ) |
|
da59ff099b32
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
492 ) |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
493 xmlui.addDivider("blank") |
|
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diff
changeset
|
494 xmlui.changeContainer("pairs") |
|
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diff
changeset
|
495 xmlui.addLabel(D_(u"Is your correspondent fingerprint the same as here ?")) |
|
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changeset
|
496 xmlui.addList( |
|
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diff
changeset
|
497 "match", [("yes", _("yes")), ("no", _("no"))], ["yes" if trusted else "no"] |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
498 ) |
|
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core (memory/encryption), plugin OTR: finished OTR integration in encryption:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
499 return xmlui |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
500 |
| 2125 | 501 def _otrStartRefresh(self, menu_data, profile): |
|
1136
ea2bbdf5b541
plugin OTR: added start/refresh and end session menus
Goffi <goffi@goffi.org>
parents:
1135
diff
changeset
|
502 """Start or refresh an OTR session |
|
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plugin OTR: added start/refresh and end session menus
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
503 |
|
ea2bbdf5b541
plugin OTR: added start/refresh and end session menus
Goffi <goffi@goffi.org>
parents:
1135
diff
changeset
|
504 @param menu_data: %(menu_data)s |
|
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plugin OTR: added start/refresh and end session menus
Goffi <goffi@goffi.org>
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diff
changeset
|
505 @param profile: %(doc_profile)s |
|
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506 """ |
|
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507 client = self.host.getClient(profile) |
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508 try: |
|
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509 to_jid = jid.JID(menu_data["jid"]) |
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510 except KeyError: |
| 2125 | 511 log.error(_(u"jid key is not present !")) |
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512 return defer.fail(exceptions.DataError) |
| 2125 | 513 self.startRefresh(client, to_jid) |
|
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514 return {} |
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515 |
| 2125 | 516 def startRefresh(self, client, to_jid): |
| 517 """Start or refresh an OTR session | |
| 518 | |
| 519 @param to_jid(jid.JID): jid to start encrypted session with | |
| 520 """ | |
|
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521 encrypted_session = client.encryption.getSession(to_jid.userhostJID()) |
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522 if encrypted_session and encrypted_session[u'plugin'].namespace != NS_OTR: |
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523 raise exceptions.ConflictError(_( |
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524 u"Can't start an OTR session, there is already an encrypted session " |
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525 u"with {name}").format(name=encrypted_session[u'plugin'].name)) |
| 2125 | 526 if not to_jid.resource: |
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527 to_jid.resource = self.host.memory.getMainResource( |
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528 client, to_jid |
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529 ) # FIXME: temporary and unsecure, must be changed when frontends |
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530 # are refactored |
| 2128 | 531 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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532 query = otrctx.sendMessage(0, "?OTRv?") |
| 2125 | 533 otrctx.inject(query) |
| 534 | |
| 535 def _otrSessionEnd(self, menu_data, profile): | |
|
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536 """End an OTR session |
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537 |
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538 @param menu_data: %(menu_data)s |
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539 @param profile: %(doc_profile)s |
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540 """ |
|
1970
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541 client = self.host.getClient(profile) |
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542 try: |
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543 to_jid = jid.JID(menu_data["jid"]) |
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544 except KeyError: |
| 2125 | 545 log.error(_(u"jid key is not present !")) |
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546 return defer.fail(exceptions.DataError) |
| 2125 | 547 self.endSession(client, to_jid) |
| 548 return {} | |
| 549 | |
| 550 def endSession(self, client, to_jid): | |
| 551 """End an OTR session""" | |
| 552 if not to_jid.resource: | |
|
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553 to_jid.resource = self.host.memory.getMainResource( |
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554 client, to_jid |
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555 ) # FIXME: temporary and unsecure, must be changed when frontends |
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556 # are refactored |
| 2128 | 557 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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558 otrctx.disconnect() |
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559 return {} |
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560 |
| 2125 | 561 def _otrAuthenticate(self, menu_data, profile): |
| 562 """End an OTR session | |
|
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563 |
|
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564 @param menu_data: %(menu_data)s |
|
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565 @param profile: %(doc_profile)s |
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566 """ |
|
1970
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diff
changeset
|
567 client = self.host.getClient(profile) |
|
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|
568 try: |
|
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569 to_jid = jid.JID(menu_data["jid"]) |
|
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|
570 except KeyError: |
| 2125 | 571 log.error(_(u"jid key is not present !")) |
|
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572 return defer.fail(exceptions.DataError) |
| 2125 | 573 return self.authenticate(client, to_jid) |
| 574 | |
| 575 def authenticate(self, client, to_jid): | |
| 576 """Authenticate other user and see our own fingerprint""" | |
|
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577 xmlui = self.getTrustUI(client, to_jid) |
|
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578 return {"xmlui": xmlui.toXml()} |
|
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|
579 |
|
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580 def _dropPrivKey(self, menu_data, profile): |
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581 """Drop our private Key |
|
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582 |
|
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|
583 @param menu_data: %(menu_data)s |
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584 @param profile: %(doc_profile)s |
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585 """ |
|
1970
200cd707a46d
plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
Goffi <goffi@goffi.org>
parents:
1963
diff
changeset
|
586 client = self.host.getClient(profile) |
|
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|
587 try: |
|
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588 to_jid = jid.JID(menu_data["jid"]) |
|
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|
589 if not to_jid.resource: |
|
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590 to_jid.resource = self.host.memory.getMainResource( |
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591 client, to_jid |
|
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|
592 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
189e38fb11ff
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changeset
|
593 # are refactored |
|
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594 except KeyError: |
| 2125 | 595 log.error(_(u"jid key is not present !")) |
|
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596 return defer.fail(exceptions.DataError) |
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|
597 |
| 2128 | 598 ctxMng = client._otr_context_manager |
|
1146
1ac5ea74dbdf
plugin OTR: remove unnecessary attribute SatXMPPClient.otr_priv_key
souliane <souliane@mailoo.org>
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changeset
|
599 if ctxMng.account.privkey is None: |
|
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600 return { |
|
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601 "xmlui": xml_tools.note(_(u"You don't have a private key yet !")).toXml() |
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602 } |
|
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603 |
|
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604 def dropKey(data, profile): |
|
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605 if C.bool(data["answer"]): |
|
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|
606 # we end all sessions |
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|
607 for context in ctxMng.contexts.values(): |
|
1169
a3354063dfb6
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diff
changeset
|
608 context.disconnect() |
|
1147
736f1dd6e142
plugin OTR: two small fixes
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changeset
|
609 ctxMng.account.privkey = None |
|
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|
610 ctxMng.account.getPrivkey() # as account.privkey is None, getPrivkey |
|
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|
611 # will generate a new key, and save it |
|
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612 return { |
|
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|
613 "xmlui": xml_tools.note( |
|
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614 D_(u"Your private key has been dropped") |
|
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615 ).toXml() |
|
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|
616 } |
|
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|
617 return {} |
|
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|
618 |
|
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|
619 submit_id = self.host.registerCallback(dropKey, with_data=True, one_shot=True) |
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|
620 |
|
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|
621 confirm = xml_tools.XMLUI( |
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|
622 C.XMLUI_DIALOG, |
|
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|
623 title=_(u"Confirm private key drop"), |
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|
624 dialog_opt={"type": C.XMLUI_DIALOG_CONFIRM, "message": _(DROP_TXT)}, |
|
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625 submit_id=submit_id, |
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|
626 ) |
|
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|
627 return {"xmlui": confirm.toXml()} |
|
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|
628 |
| 2128 | 629 def _receivedTreatment(self, data, client): |
|
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|
630 from_jid = data["from"] |
| 1095 | 631 log.debug(u"_receivedTreatment [from_jid = %s]" % from_jid) |
| 2128 | 632 otrctx = client._otr_context_manager.getContextForUser(from_jid) |
| 1055 | 633 |
| 634 try: | |
|
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|
635 message = ( |
|
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|
636 data["message"].itervalues().next() |
|
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|
637 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
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|
638 res = otrctx.receiveMessage(message.encode("utf-8")) |
| 1055 | 639 except potr.context.UnencryptedMessage: |
| 2128 | 640 encrypted = False |
| 1095 | 641 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
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642 log.warning( |
|
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|
643 u"Received unencrypted message in an encrypted context (from {jid})" |
|
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|
644 .format(jid=from_jid.full()) |
|
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645 ) |
| 2125 | 646 |
|
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|
647 feedback = ( |
|
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|
648 D_( |
|
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|
649 u"WARNING: received unencrypted data in a supposedly encrypted " |
|
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|
650 u"context" |
|
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651 ), |
|
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652 ) |
|
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|
653 client.feedback(from_jid, feedback) |
|
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|
654 except potr.context.NotEncryptedError: |
|
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|
655 msg = D_(u"WARNING: received OTR encrypted data in an unencrypted context") |
|
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|
656 log.warning(msg) |
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|
657 feedback = msg |
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|
658 client.feedback(from_jid, msg) |
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659 raise failure.Failure(exceptions.CancelError(msg)) |
|
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660 except potr.context.ErrorReceived as e: |
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|
661 msg = D_(u"WARNING: received OTR error message: {msg}".format(msg=e)) |
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|
662 log.warning(msg) |
|
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|
663 feedback = msg |
|
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|
664 client.feedback(from_jid, msg) |
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|
665 raise failure.Failure(exceptions.CancelError(msg)) |
|
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666 except potr.crypt.InvalidParameterError as e: |
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|
667 msg = D_(u"Error while trying de decrypt OTR message: {msg}".format(msg=e)) |
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|
668 log.warning(msg) |
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|
669 feedback = msg |
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|
670 client.feedback(from_jid, msg) |
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|
671 raise failure.Failure(exceptions.CancelError(msg)) |
|
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|
672 except StopIteration: |
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|
673 return data |
| 2128 | 674 else: |
| 675 encrypted = True | |
| 1055 | 676 |
| 2128 | 677 if encrypted: |
| 1055 | 678 if res[0] != None: |
| 679 # decrypted messages handling. | |
|
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|
680 # receiveMessage() will return a tuple, |
|
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|
681 # the first part of which will be the decrypted message |
|
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682 data["message"] = { |
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683 "": res[0].decode("utf-8") |
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684 } # FIXME: Q&D fix for message refactoring, message is now a dict |
|
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|
685 try: |
|
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|
686 # we want to keep message in history, even if no store is |
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|
687 # requested in message hints |
|
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|
688 del data[u"history"] |
|
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|
689 except KeyError: |
|
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|
690 pass |
| 2128 | 691 # TODO: add skip history as an option, but by default we don't skip it |
|
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692 # data[u'history'] = C.HISTORY_SKIP # we send the decrypted message to |
|
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|
693 # frontends, but we don't want it in |
|
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|
694 # history |
| 1055 | 695 else: |
|
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696 raise failure.Failure( |
|
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|
697 exceptions.CancelError("Cancelled by OTR") |
|
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|
698 ) # no message at all (no history, no signal) |
|
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|
699 |
|
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|
700 client.encryption.markAsEncrypted(data) |
|
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|
701 trusted = otrctx.isTrusted() |
|
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|
702 |
|
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|
703 if trusted: |
|
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|
704 client.encryption.markAsTrusted(data) |
|
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changeset
|
705 else: |
|
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changeset
|
706 client.encryption.markAsUntrusted(data) |
|
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|
707 |
| 2128 | 708 return data |
| 1055 | 709 |
| 2128 | 710 def _receivedTreatmentForSkippedProfiles(self, data): |
|
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changeset
|
711 """This profile must be skipped because the frontend manages OTR itself, |
| 2128 | 712 |
| 713 but we still need to check if the message must be stored in history or not | |
| 714 """ | |
|
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|
715 # XXX: FIXME: this should not be done on a per-profile basis, but per-message |
|
1955
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|
716 try: |
|
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|
717 message = ( |
|
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|
718 data["message"].itervalues().next().encode("utf-8") |
|
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|
719 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
1955
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changeset
|
720 except StopIteration: |
|
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changeset
|
721 return data |
|
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changeset
|
722 if message.startswith(potr.proto.OTRTAG): |
|
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|
723 # FIXME: it may be better to cancel the message and send it direclty to |
|
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|
724 # bridge |
|
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|
725 # this is used by Libervia, but this may send garbage message to |
|
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|
726 # other frontends |
|
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changeset
|
727 # if they are used at the same time as Libervia. |
|
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|
728 # Hard to avoid with decryption on Libervia though. |
|
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|
729 data[u"history"] = C.HISTORY_SKIP |
|
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|
730 return data |
|
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changeset
|
731 |
|
1963
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changeset
|
732 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
|
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|
733 if message_elt.getAttribute("type") == C.MESS_TYPE_GROUPCHAT: |
| 2128 | 734 # OTR is not possible in group chats |
| 735 return True | |
| 736 if client.profile in self.skipped_profiles: | |
| 737 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles) | |
|
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|
738 else: |
| 2128 | 739 post_treat.addCallback(self._receivedTreatment, client) |
| 1055 | 740 return True |
| 741 | |
|
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|
742 def _sendMessageDataTrigger(self, client, mess_data): |
|
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changeset
|
743 encryption = mess_data.get(C.MESS_KEY_ENCRYPTION) |
|
7213caa5c5d0
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changeset
|
744 if encryption is None or encryption['plugin'].namespace != NS_OTR: |
|
2138
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changeset
|
745 return |
|
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changeset
|
746 to_jid = mess_data['to'] |
|
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changeset
|
747 if not to_jid.resource: |
|
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changeset
|
748 to_jid.resource = self.host.memory.getMainResource( |
|
7213caa5c5d0
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changeset
|
749 client, to_jid |
|
7213caa5c5d0
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changeset
|
750 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
7213caa5c5d0
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diff
changeset
|
751 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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|
752 message_elt = mess_data["xml"] |
|
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changeset
|
753 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
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changeset
|
754 log.debug(u"encrypting message") |
|
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changeset
|
755 body = None |
|
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changeset
|
756 for child in list(message_elt.children): |
|
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changeset
|
757 if child.name == "body": |
|
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changeset
|
758 # we remove all unencrypted body, |
|
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changeset
|
759 # and will only encrypt the first one |
|
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Goffi <goffi@goffi.org>
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changeset
|
760 if body is None: |
|
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changeset
|
761 body = child |
|
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changeset
|
762 message_elt.children.remove(child) |
|
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763 elif child.name == "html": |
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764 # we don't want any XHTML-IM element |
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765 message_elt.children.remove(child) |
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766 if body is None: |
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767 log.warning(u"No message found") |
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768 else: |
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769 self._p_carbons.setPrivate(message_elt) |
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770 self._p_hints.addHintElements(message_elt, [ |
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771 self._p_hints.HINT_NO_COPY, |
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772 self._p_hints.HINT_NO_PERMANENT_STORE]) |
|
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773 otrctx.sendMessage(0, unicode(body).encode("utf-8"), appdata=mess_data) |
| 1055 | 774 else: |
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775 feedback = D_( |
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776 u"Your message was not sent because your correspondent closed the " |
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777 u"encrypted conversation on his/her side. " |
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778 u"Either close your own side, or refresh the session." |
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779 ) |
|
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780 log.warning(_(u"Message discarded because closed encryption channel")) |
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781 client.feedback(to_jid, feedback) |
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782 raise failure.Failure(exceptions.CancelError(u"Cancelled by OTR plugin")) |
| 2128 | 783 |
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784 def sendMessageTrigger(self, client, mess_data, pre_xml_treatments, |
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785 post_xml_treatments): |
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786 if mess_data["type"] == "groupchat": |
| 1055 | 787 return True |
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788 |
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789 if client.profile in self.skipped_profiles: |
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790 # FIXME: should not be done on a per-profile basis |
| 2128 | 791 return True |
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792 |
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793 to_jid = copy.copy(mess_data["to"]) |
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794 if client.encryption.getSession(to_jid.userhostJID()): |
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795 # there is already an encrypted session with this entity |
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796 return True |
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797 |
|
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798 if not to_jid.resource: |
|
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799 to_jid.resource = self.host.memory.getMainResource( |
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800 client, to_jid |
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801 ) # FIXME: full jid may not be known |
|
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802 |
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803 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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804 |
|
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805 if otrctx.state != potr.context.STATE_PLAINTEXT: |
|
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parents:
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|
806 client.encryption.start(to_jid, NS_OTR) |
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807 client.encryption.setEncryptionFlag(mess_data) |
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808 if not mess_data["to"].resource: |
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809 # if not resource was given, we force it here |
|
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810 mess_data["to"] = to_jid |
| 2128 | 811 return True |
| 1055 | 812 |
|
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813 def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile): |
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814 if show != C.PRESENCE_UNAVAILABLE: |
|
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plugin sec_otr: a trigger was not returning True
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|
815 return True |
| 2128 | 816 client = self.host.getClient(profile) |
|
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817 if not entity.resource: |
|
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|
818 try: |
|
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819 entity.resource = self.host.memory.getMainResource( |
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|
820 client, entity |
|
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821 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
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|
822 # are refactored |
|
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|
823 except exceptions.UnknownEntityError: |
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|
824 return True # entity was not connected |
| 2128 | 825 if entity in client._otr_context_manager.contexts: |
| 826 otrctx = client._otr_context_manager.getContextForUser(entity) | |
|
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|
827 otrctx.disconnect() |
|
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828 return True |