Mercurial > libervia-backend
annotate sat/plugins/plugin_sec_otr.py @ 2899:5b0f897689b7
quick frontend (app): (un)set sync state on (dis)connect:
when connected signal is received, a whole (re)connection has happened, meaning that everything is potentially out of sync (opened widget and contact lists), so host.sync is set accordingly.
It's a temporary option, as (dis)connect is a per-profile signal, and host.sync is global. Methods similar to sync workflow must be implemented on a per-profile basis.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 07 Apr 2019 21:09:49 +0200 |
| parents | 3d735e0ab2fa |
| children | ab2696e34d29 |
| rev | line source |
|---|---|
|
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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("presence_received", 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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|
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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|
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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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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changeset
|
461 otrctx.setCurrentTrust("") |
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changeset
|
462 note_msg = _(u"Your correspondent {correspondent} is now UNTRUSTED") |
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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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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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changeset
|
473 return {"xmlui": note.toXml()} |
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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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diff
changeset
|
477 |
|
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diff
changeset
|
478 xmlui = xml_tools.XMLUI( |
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diff
changeset
|
479 C.XMLUI_FORM, |
|
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diff
changeset
|
480 title=_(u"Authentication ({entity_jid})").format(entity_jid=entity_jid.full()), |
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diff
changeset
|
481 submit_id=submit_id, |
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diff
changeset
|
482 ) |
|
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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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diff
changeset
|
485 xmlui.addText( |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
486 D_(u"Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key) |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
487 ) |
|
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parents:
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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:
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diff
changeset
|
491 ) |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
492 ) |
|
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parents:
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changeset
|
493 xmlui.addDivider("blank") |
|
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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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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
499 return xmlui |
|
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Goffi <goffi@goffi.org>
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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:
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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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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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plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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|
661 msg = D_(u"WARNING: received OTR error message: {msg}".format(msg=e)) |
|
a86f494457c2
plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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changeset
|
662 log.warning(msg) |
|
a86f494457c2
plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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changeset
|
663 feedback = msg |
|
a86f494457c2
plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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changeset
|
664 client.feedback(from_jid, msg) |
|
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plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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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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changeset
|
670 client.feedback(from_jid, msg) |
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|
671 raise failure.Failure(exceptions.CancelError(msg)) |
|
1955
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|
672 except StopIteration: |
|
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changeset
|
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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core: replaced SkipHistory exception by a key in mess_data:
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changeset
|
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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diff
changeset
|
699 |
|
3dd265d281e1
plugin OTR: fixed a bug which was tagging every message as "encrypted"
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changeset
|
700 client.encryption.markAsEncrypted(data) |
|
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changeset
|
701 trusted = otrctx.isTrusted() |
|
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diff
changeset
|
702 |
|
2753
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changeset
|
703 if trusted: |
|
3dd265d281e1
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changeset
|
704 client.encryption.markAsTrusted(data) |
|
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parents:
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diff
changeset
|
705 else: |
|
3dd265d281e1
plugin OTR: fixed a bug which was tagging every message as "encrypted"
Goffi <goffi@goffi.org>
parents:
2743
diff
changeset
|
706 client.encryption.markAsUntrusted(data) |
|
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changeset
|
707 |
| 2128 | 708 return data |
| 1055 | 709 |
| 2128 | 710 def _receivedTreatmentForSkippedProfiles(self, data): |
|
1174
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plugin OTR: do not save in history the encrypted messages for skipped profiles
souliane <souliane@mailoo.org>
parents:
1171
diff
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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changeset
|
715 # XXX: FIXME: this should not be done on a per-profile basis, but per-message |
|
1955
633b5c21aefd
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1934
diff
changeset
|
716 try: |
|
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|
717 message = ( |
|
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changeset
|
718 data["message"].itervalues().next().encode("utf-8") |
|
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changeset
|
719 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
1955
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
720 except StopIteration: |
|
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
721 return data |
|
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
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parents:
1934
diff
changeset
|
722 if message.startswith(potr.proto.OTRTAG): |
|
2643
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changeset
|
723 # FIXME: it may be better to cancel the message and send it direclty to |
|
189e38fb11ff
core: style improvments (90 chars limit)
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parents:
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changeset
|
724 # bridge |
|
189e38fb11ff
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changeset
|
725 # this is used by Libervia, but this may send garbage message to |
|
189e38fb11ff
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changeset
|
726 # other frontends |
|
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2129
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changeset
|
727 # if they are used at the same time as Libervia. |
|
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2129
diff
changeset
|
728 # Hard to avoid with decryption on Libervia though. |
|
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changeset
|
729 data[u"history"] = C.HISTORY_SKIP |
|
1174
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souliane <souliane@mailoo.org>
parents:
1171
diff
changeset
|
730 return data |
|
bc811915a96a
plugin OTR: do not save in history the encrypted messages for skipped profiles
souliane <souliane@mailoo.org>
parents:
1171
diff
changeset
|
731 |
|
1963
a2bc5089c2eb
backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
parents:
1955
diff
changeset
|
732 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
|
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changeset
|
733 if message_elt.getAttribute("type") == C.MESS_TYPE_GROUPCHAT: |
| 2128 | 734 # OTR is not possible in group chats |
| 735 return True | |
|
2821
3d735e0ab2fa
plugin OTR: ignore messages from sender without resource or from own jid
Goffi <goffi@goffi.org>
parents:
2820
diff
changeset
|
736 from_jid = jid.JID(message_elt['from']) |
|
3d735e0ab2fa
plugin OTR: ignore messages from sender without resource or from own jid
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parents:
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diff
changeset
|
737 if not from_jid.resource or from_jid.userhostJID() == client.jid.userhostJID(): |
|
3d735e0ab2fa
plugin OTR: ignore messages from sender without resource or from own jid
Goffi <goffi@goffi.org>
parents:
2820
diff
changeset
|
738 # OTR is only usable when resources are present |
|
3d735e0ab2fa
plugin OTR: ignore messages from sender without resource or from own jid
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parents:
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diff
changeset
|
739 return True |
| 2128 | 740 if client.profile in self.skipped_profiles: |
| 741 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles) | |
|
1174
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parents:
1171
diff
changeset
|
742 else: |
| 2128 | 743 post_treat.addCallback(self._receivedTreatment, client) |
| 1055 | 744 return True |
| 745 | |
|
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changeset
|
746 def _sendMessageDataTrigger(self, client, mess_data): |
|
2653
7213caa5c5d0
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2643
diff
changeset
|
747 encryption = mess_data.get(C.MESS_KEY_ENCRYPTION) |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
748 if encryption is None or encryption['plugin'].namespace != NS_OTR: |
|
2138
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
749 return |
|
2653
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parents:
2643
diff
changeset
|
750 to_jid = mess_data['to'] |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
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parents:
2643
diff
changeset
|
751 if not to_jid.resource: |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
752 to_jid.resource = self.host.memory.getMainResource( |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
753 client, to_jid |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
754 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
755 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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changeset
|
756 message_elt = mess_data["xml"] |
|
2138
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plugin OTR, core; use of new sendMessage + OTR mini refactoring:
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parents:
2132
diff
changeset
|
757 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
758 log.debug(u"encrypting message") |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
759 body = None |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
760 for child in list(message_elt.children): |
|
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changeset
|
761 if child.name == "body": |
|
2138
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Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
762 # we remove all unencrypted body, |
|
6e509ee853a8
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763 # and will only encrypt the first one |
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764 if body is None: |
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765 body = child |
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plugin OTR, core; use of new sendMessage + OTR mini refactoring:
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766 message_elt.children.remove(child) |
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767 elif child.name == "html": |
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768 # we don't want any XHTML-IM element |
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769 message_elt.children.remove(child) |
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770 if body is None: |
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771 log.warning(u"No message found") |
|
1168
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plugin OTR: fixes handling of the FINISHED state
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772 else: |
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773 self._p_carbons.setPrivate(message_elt) |
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774 self._p_hints.addHintElements(message_elt, [ |
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775 self._p_hints.HINT_NO_COPY, |
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776 self._p_hints.HINT_NO_PERMANENT_STORE]) |
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777 otrctx.sendMessage(0, unicode(body).encode("utf-8"), appdata=mess_data) |
| 1055 | 778 else: |
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779 feedback = D_( |
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780 u"Your message was not sent because your correspondent closed the " |
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781 u"encrypted conversation on his/her side. " |
|
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782 u"Either close your own side, or refresh the session." |
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783 ) |
|
2144
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784 log.warning(_(u"Message discarded because closed encryption channel")) |
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785 client.feedback(to_jid, feedback) |
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786 raise failure.Failure(exceptions.CancelError(u"Cancelled by OTR plugin")) |
| 2128 | 787 |
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788 def sendMessageTrigger(self, client, mess_data, pre_xml_treatments, |
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789 post_xml_treatments): |
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790 if mess_data["type"] == "groupchat": |
| 1055 | 791 return True |
|
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792 |
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793 if client.profile in self.skipped_profiles: |
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794 # FIXME: should not be done on a per-profile basis |
| 2128 | 795 return True |
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796 |
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797 to_jid = copy.copy(mess_data["to"]) |
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798 if client.encryption.getSession(to_jid.userhostJID()): |
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parents:
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changeset
|
799 # there is already an encrypted session with this entity |
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parents:
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|
800 return True |
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parents:
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changeset
|
801 |
|
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parents:
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802 if not to_jid.resource: |
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803 to_jid.resource = self.host.memory.getMainResource( |
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804 client, to_jid |
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|
805 ) # FIXME: full jid may not be known |
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|
806 |
|
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|
807 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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|
808 |
|
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parents:
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changeset
|
809 if otrctx.state != potr.context.STATE_PLAINTEXT: |
|
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parents:
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changeset
|
810 client.encryption.start(to_jid, NS_OTR) |
|
7213caa5c5d0
plugin OTR: integrated in new encryption handler + fixed use of bare jid where full jid was expected
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parents:
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changeset
|
811 client.encryption.setEncryptionFlag(mess_data) |
|
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|
812 if not mess_data["to"].resource: |
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|
813 # if not resource was given, we force it here |
|
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|
814 mess_data["to"] = to_jid |
| 2128 | 815 return True |
| 1055 | 816 |
|
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diff
changeset
|
817 def _presenceReceivedTrigger(self, client, entity, show, priority, statuses): |
|
1480
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818 if show != C.PRESENCE_UNAVAILABLE: |
|
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plugin sec_otr: a trigger was not returning True
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|
819 return True |
|
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plugin OTR: forces FINISHED state if we are in ENCRYPTED state on contact disconnection
souliane <souliane@mailoo.org>
parents:
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changeset
|
820 if not entity.resource: |
|
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parents:
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changeset
|
821 try: |
|
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|
822 entity.resource = self.host.memory.getMainResource( |
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|
823 client, entity |
|
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|
824 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
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parents:
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changeset
|
825 # are refactored |
|
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souliane <souliane@mailoo.org>
parents:
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changeset
|
826 except exceptions.UnknownEntityError: |
|
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souliane <souliane@mailoo.org>
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diff
changeset
|
827 return True # entity was not connected |
| 2128 | 828 if entity in client._otr_context_manager.contexts: |
| 829 otrctx = client._otr_context_manager.getContextForUser(entity) | |
|
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souliane <souliane@mailoo.org>
parents:
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changeset
|
830 otrctx.disconnect() |
|
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plugin OTR: forces FINISHED state if we are in ENCRYPTED state on contact disconnection
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changeset
|
831 return True |