Mercurial > libervia-backend
annotate sat/plugins/plugin_sec_otr.py @ 2807:0b7ce5daee9b
plugin XEP-0277: blog items data are now entirely serialised before going to bridge:
So far, and for historical reasons, blog items data where serialised using a unicode: unicode dict, which was causing trouble for many types of values (timestamps, booleans, lists).
This patch changes it by serialising the whole items before going to bridge, and deserialising it when going back. This way, complex data can be used easily in items.
This impact psEvent and serItemsData* methods which are renamed transItemsData* because there are not always serialising anymore (a new argument "serialise" allows to specify it).
When editing a blog post in jp, metadata are now more easy to manipulate, specially lists like tags.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 23 Feb 2019 18:59:00 +0100 |
| parents | 003b8b4b56a7 |
| children | a26b1ad2d3a4 |
| 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 host.importMenu( |
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329 (OTR_MENU, D_(u"Start/Refresh")), |
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330 self._otrStartRefresh, |
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331 security_limit=0, |
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332 help_string=D_(u"Start or refresh an OTR session"), |
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333 type_=C.MENU_SINGLE, |
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334 ) |
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335 host.importMenu( |
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336 (OTR_MENU, D_(u"End session")), |
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337 self._otrSessionEnd, |
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338 security_limit=0, |
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339 help_string=D_(u"Finish an OTR session"), |
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340 type_=C.MENU_SINGLE, |
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341 ) |
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342 host.importMenu( |
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343 (OTR_MENU, D_(u"Authenticate")), |
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344 self._otrAuthenticate, |
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345 security_limit=0, |
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346 help_string=D_(u"Authenticate user/see your fingerprint"), |
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347 type_=C.MENU_SINGLE, |
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348 ) |
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349 host.importMenu( |
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350 (OTR_MENU, D_(u"Drop private key")), |
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351 self._dropPrivKey, |
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352 security_limit=0, |
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353 type_=C.MENU_SINGLE, |
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354 ) |
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355 host.trigger.add("presenceReceived", self._presenceReceivedTrigger) |
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356 self.host.registerEncryptionPlugin(self, u"OTR", NS_OTR, directed=True) |
| 1055 | 357 |
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358 def _skipOTR(self, profile): |
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359 """Tell the backend to not handle OTR for this profile. |
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360 |
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361 @param profile (str): %(doc_profile)s |
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362 """ |
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363 # FIXME: should not be done per profile but per message, using extra data |
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364 # for message received, profile wide hook may be need, but client |
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365 # should be used anyway instead of a class attribute |
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366 self.skipped_profiles.add(profile) |
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367 |
| 1095 | 368 @defer.inlineCallbacks |
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369 def profileConnected(self, client): |
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370 if client.profile in self.skipped_profiles: |
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371 return |
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372 ctxMng = client._otr_context_manager = ContextManager(self, client) |
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373 client._otr_data = persistent.PersistentBinaryDict(NS_OTR, client.profile) |
| 2128 | 374 yield client._otr_data.load() |
| 375 encrypted_priv_key = client._otr_data.get(PRIVATE_KEY, None) | |
| 1095 | 376 if encrypted_priv_key is not None: |
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377 priv_key = yield self.host.memory.decryptValue( |
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378 encrypted_priv_key, client.profile |
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379 ) |
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380 ctxMng.account.privkey = potr.crypt.PK.parsePrivateKey( |
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381 priv_key.decode("hex") |
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382 )[0] |
| 1095 | 383 else: |
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384 ctxMng.account.privkey = None |
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385 ctxMng.account.loadTrusts() |
| 1055 | 386 |
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387 def profileDisconnected(self, client): |
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388 if client.profile in self.skipped_profiles: |
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389 self.skipped_profiles.remove(client.profile) |
| 2128 | 390 return |
| 391 for context in client._otr_context_manager.contexts.values(): | |
| 392 context.disconnect() | |
| 393 del client._otr_context_manager | |
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394 |
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395 # encryption plugin methods |
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396 |
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397 def startEncryption(self, client, entity_jid): |
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398 self.startRefresh(client, entity_jid) |
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399 |
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400 def stopEncryption(self, client, entity_jid): |
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401 self.endSession(client, entity_jid) |
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402 |
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403 def getTrustUI(self, client, entity_jid): |
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404 if not entity_jid.resource: |
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405 entity_jid.resource = self.host.memory.getMainResource( |
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406 client, entity_jid |
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407 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
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408 # are refactored |
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409 ctxMng = client._otr_context_manager |
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|
410 otrctx = ctxMng.getContextForUser(entity_jid) |
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411 priv_key = ctxMng.account.privkey |
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412 |
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413 if priv_key is None: |
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414 # we have no private key yet |
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|
415 dialog = xml_tools.XMLUI( |
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|
416 C.XMLUI_DIALOG, |
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|
417 dialog_opt={ |
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418 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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|
419 C.XMLUI_DATA_MESS: _( |
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420 u"You have no private key yet, start an OTR conversation to " |
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|
421 u"have one" |
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422 ), |
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423 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_WARNING, |
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parents:
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|
424 }, |
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425 title=_(u"No private key"), |
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426 ) |
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changeset
|
427 return dialog |
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|
428 |
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|
429 other_fingerprint = otrctx.getCurrentKey() |
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430 |
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431 if other_fingerprint is None: |
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432 # we have a private key, but not the fingerprint of our correspondent |
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433 dialog = xml_tools.XMLUI( |
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434 C.XMLUI_DIALOG, |
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435 dialog_opt={ |
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436 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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437 C.XMLUI_DATA_MESS: _( |
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438 u"Your fingerprint is:\n{fingerprint}\n\n" |
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changeset
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439 u"Start an OTR conversation to have your correspondent one." |
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440 ).format(fingerprint=priv_key), |
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441 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_INFO, |
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442 }, |
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443 title=_(u"Fingerprint"), |
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444 ) |
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changeset
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445 return dialog |
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changeset
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446 |
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447 def setTrust(raw_data, profile): |
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448 if xml_tools.isXMLUICancelled(raw_data): |
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449 return {} |
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450 # This method is called when authentication form is submited |
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changeset
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451 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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452 if data["match"] == "yes": |
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changeset
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453 otrctx.setCurrentTrust(OTR_STATE_TRUSTED) |
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changeset
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454 note_msg = _(u"Your correspondent {correspondent} is now TRUSTED") |
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changeset
|
455 self.host.bridge.otrState( |
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456 OTR_STATE_TRUSTED, entity_jid.full(), client.profile |
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457 ) |
|
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parents:
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changeset
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458 else: |
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changeset
|
459 otrctx.setCurrentTrust("") |
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changeset
|
460 note_msg = _(u"Your correspondent {correspondent} is now UNTRUSTED") |
|
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changeset
|
461 self.host.bridge.otrState( |
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changeset
|
462 OTR_STATE_UNTRUSTED, entity_jid.full(), client.profile |
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changeset
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463 ) |
|
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parents:
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changeset
|
464 note = xml_tools.XMLUI( |
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changeset
|
465 C.XMLUI_DIALOG, |
|
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changeset
|
466 dialog_opt={ |
|
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diff
changeset
|
467 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_NOTE, |
|
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changeset
|
468 C.XMLUI_DATA_MESS: note_msg.format(correspondent=otrctx.peer), |
|
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changeset
|
469 }, |
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parents:
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changeset
|
470 ) |
|
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parents:
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changeset
|
471 return {"xmlui": note.toXml()} |
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changeset
|
472 |
|
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changeset
|
473 submit_id = self.host.registerCallback(setTrust, with_data=True, one_shot=True) |
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changeset
|
474 trusted = otrctx.isTrusted() |
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changeset
|
475 |
|
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diff
changeset
|
476 xmlui = xml_tools.XMLUI( |
|
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changeset
|
477 C.XMLUI_FORM, |
|
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Goffi <goffi@goffi.org>
parents:
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changeset
|
478 title=_(u"Authentication ({entity_jid})").format(entity_jid=entity_jid.full()), |
|
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changeset
|
479 submit_id=submit_id, |
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changeset
|
480 ) |
|
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parents:
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changeset
|
481 xmlui.addText(_(AUTH_TXT)) |
|
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parents:
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diff
changeset
|
482 xmlui.addDivider() |
|
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diff
changeset
|
483 xmlui.addText( |
|
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parents:
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diff
changeset
|
484 D_(u"Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key) |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
485 ) |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
486 xmlui.addText( |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
487 D_(u"Your correspondent fingerprint should be:\n{fingerprint}").format( |
|
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parents:
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diff
changeset
|
488 fingerprint=other_fingerprint |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
489 ) |
|
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Goffi <goffi@goffi.org>
parents:
2726
diff
changeset
|
490 ) |
|
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parents:
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changeset
|
491 xmlui.addDivider("blank") |
|
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parents:
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changeset
|
492 xmlui.changeContainer("pairs") |
|
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changeset
|
493 xmlui.addLabel(D_(u"Is your correspondent fingerprint the same as here ?")) |
|
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changeset
|
494 xmlui.addList( |
|
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parents:
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diff
changeset
|
495 "match", [("yes", _("yes")), ("no", _("no"))], ["yes" if trusted else "no"] |
|
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parents:
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diff
changeset
|
496 ) |
|
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parents:
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diff
changeset
|
497 return xmlui |
|
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diff
changeset
|
498 |
| 2125 | 499 def _otrStartRefresh(self, menu_data, profile): |
|
1136
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plugin OTR: added start/refresh and end session menus
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
500 """Start or refresh an OTR session |
|
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plugin OTR: added start/refresh and end session menus
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diff
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|
501 |
|
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plugin OTR: added start/refresh and end session menus
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diff
changeset
|
502 @param menu_data: %(menu_data)s |
|
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|
503 @param profile: %(doc_profile)s |
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|
504 """ |
|
1970
200cd707a46d
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Goffi <goffi@goffi.org>
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diff
changeset
|
505 client = self.host.getClient(profile) |
|
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changeset
|
506 try: |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
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2562
diff
changeset
|
507 to_jid = jid.JID(menu_data["jid"]) |
|
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changeset
|
508 except KeyError: |
| 2125 | 509 log.error(_(u"jid key is not present !")) |
|
1136
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changeset
|
510 return defer.fail(exceptions.DataError) |
| 2125 | 511 self.startRefresh(client, to_jid) |
|
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|
512 return {} |
|
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diff
changeset
|
513 |
| 2125 | 514 def startRefresh(self, client, to_jid): |
| 515 """Start or refresh an OTR session | |
| 516 | |
| 517 @param to_jid(jid.JID): jid to start encrypted session with | |
| 518 """ | |
|
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519 encrypted_session = client.encryption.getSession(to_jid.userhostJID()) |
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520 if encrypted_session and encrypted_session[u'plugin'].namespace != NS_OTR: |
|
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521 raise exceptions.ConflictError(_( |
|
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522 u"Can't start an OTR session, there is already an encrypted session " |
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523 u"with {name}").format(name=encrypted_session[u'plugin'].name)) |
| 2125 | 524 if not to_jid.resource: |
|
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525 to_jid.resource = self.host.memory.getMainResource( |
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526 client, to_jid |
|
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527 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
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528 # are refactored |
| 2128 | 529 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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530 query = otrctx.sendMessage(0, "?OTRv?") |
| 2125 | 531 otrctx.inject(query) |
| 532 | |
| 533 def _otrSessionEnd(self, menu_data, profile): | |
|
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534 """End an OTR session |
|
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535 |
|
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536 @param menu_data: %(menu_data)s |
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537 @param profile: %(doc_profile)s |
|
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538 """ |
|
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539 client = self.host.getClient(profile) |
|
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540 try: |
|
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541 to_jid = jid.JID(menu_data["jid"]) |
|
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542 except KeyError: |
| 2125 | 543 log.error(_(u"jid key is not present !")) |
|
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544 return defer.fail(exceptions.DataError) |
| 2125 | 545 self.endSession(client, to_jid) |
| 546 return {} | |
| 547 | |
| 548 def endSession(self, client, to_jid): | |
| 549 """End an OTR session""" | |
| 550 if not to_jid.resource: | |
|
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551 to_jid.resource = self.host.memory.getMainResource( |
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552 client, to_jid |
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553 ) # FIXME: temporary and unsecure, must be changed when frontends |
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554 # are refactored |
| 2128 | 555 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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556 otrctx.disconnect() |
|
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557 return {} |
|
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558 |
| 2125 | 559 def _otrAuthenticate(self, menu_data, profile): |
| 560 """End an OTR session | |
|
1141
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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|
561 |
|
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|
562 @param menu_data: %(menu_data)s |
|
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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|
563 @param profile: %(doc_profile)s |
|
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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564 """ |
|
1970
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plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
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changeset
|
565 client = self.host.getClient(profile) |
|
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diff
changeset
|
566 try: |
|
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567 to_jid = jid.JID(menu_data["jid"]) |
|
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changeset
|
568 except KeyError: |
| 2125 | 569 log.error(_(u"jid key is not present !")) |
|
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changeset
|
570 return defer.fail(exceptions.DataError) |
| 2125 | 571 return self.authenticate(client, to_jid) |
| 572 | |
| 573 def authenticate(self, client, to_jid): | |
| 574 """Authenticate other user and see our own fingerprint""" | |
|
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575 xmlui = self.getTrustUI(client, to_jid) |
|
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576 return {"xmlui": xmlui.toXml()} |
|
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diff
changeset
|
577 |
|
1144
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changeset
|
578 def _dropPrivKey(self, menu_data, profile): |
|
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|
579 """Drop our private Key |
|
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|
580 |
|
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changeset
|
581 @param menu_data: %(menu_data)s |
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|
582 @param profile: %(doc_profile)s |
|
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|
583 """ |
|
1970
200cd707a46d
plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
Goffi <goffi@goffi.org>
parents:
1963
diff
changeset
|
584 client = self.host.getClient(profile) |
|
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changeset
|
585 try: |
|
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|
586 to_jid = jid.JID(menu_data["jid"]) |
|
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|
587 if not to_jid.resource: |
|
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588 to_jid.resource = self.host.memory.getMainResource( |
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changeset
|
589 client, to_jid |
|
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changeset
|
590 ) # FIXME: temporary and unsecure, must be changed when frontends |
|
189e38fb11ff
core: style improvments (90 chars limit)
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changeset
|
591 # are refactored |
|
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changeset
|
592 except KeyError: |
| 2125 | 593 log.error(_(u"jid key is not present !")) |
|
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changeset
|
594 return defer.fail(exceptions.DataError) |
|
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diff
changeset
|
595 |
| 2128 | 596 ctxMng = client._otr_context_manager |
|
1146
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plugin OTR: remove unnecessary attribute SatXMPPClient.otr_priv_key
souliane <souliane@mailoo.org>
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diff
changeset
|
597 if ctxMng.account.privkey is None: |
|
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598 return { |
|
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|
599 "xmlui": xml_tools.note(_(u"You don't have a private key yet !")).toXml() |
|
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|
600 } |
|
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changeset
|
601 |
|
2481fa96ac1c
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changeset
|
602 def dropKey(data, profile): |
|
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changeset
|
603 if C.bool(data["answer"]): |
|
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changeset
|
604 # we end all sessions |
|
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changeset
|
605 for context in ctxMng.contexts.values(): |
|
1169
a3354063dfb6
plugin OTR: disconnect the active OTR sessions and delete the context on profile disconnection
souliane <souliane@mailoo.org>
parents:
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diff
changeset
|
606 context.disconnect() |
|
1147
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plugin OTR: two small fixes
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changeset
|
607 ctxMng.account.privkey = None |
|
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changeset
|
608 ctxMng.account.getPrivkey() # as account.privkey is None, getPrivkey |
|
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|
609 # will generate a new key, and save it |
|
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|
610 return { |
|
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changeset
|
611 "xmlui": xml_tools.note( |
|
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changeset
|
612 D_(u"Your private key has been dropped") |
|
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|
613 ).toXml() |
|
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changeset
|
614 } |
|
1144
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changeset
|
615 return {} |
|
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changeset
|
616 |
|
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changeset
|
617 submit_id = self.host.registerCallback(dropKey, with_data=True, one_shot=True) |
|
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changeset
|
618 |
|
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changeset
|
619 confirm = xml_tools.XMLUI( |
|
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|
620 C.XMLUI_DIALOG, |
|
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changeset
|
621 title=_(u"Confirm private key drop"), |
|
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|
622 dialog_opt={"type": C.XMLUI_DIALOG_CONFIRM, "message": _(DROP_TXT)}, |
|
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|
623 submit_id=submit_id, |
|
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|
624 ) |
|
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diff
changeset
|
625 return {"xmlui": confirm.toXml()} |
|
1144
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diff
changeset
|
626 |
| 2128 | 627 def _receivedTreatment(self, data, client): |
|
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changeset
|
628 from_jid = data["from"] |
| 1095 | 629 log.debug(u"_receivedTreatment [from_jid = %s]" % from_jid) |
| 2128 | 630 otrctx = client._otr_context_manager.getContextForUser(from_jid) |
| 1055 | 631 |
| 632 try: | |
|
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|
633 message = ( |
|
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changeset
|
634 data["message"].itervalues().next() |
|
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changeset
|
635 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
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changeset
|
636 res = otrctx.receiveMessage(message.encode("utf-8")) |
| 1055 | 637 except potr.context.UnencryptedMessage: |
| 2128 | 638 encrypted = False |
| 1095 | 639 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
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changeset
|
640 log.warning( |
|
2643
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core: style improvments (90 chars limit)
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2624
diff
changeset
|
641 u"Received unencrypted message in an encrypted context (from {jid})" |
|
189e38fb11ff
core: style improvments (90 chars limit)
Goffi <goffi@goffi.org>
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2624
diff
changeset
|
642 .format(jid=from_jid.full()) |
|
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|
643 ) |
| 2125 | 644 |
|
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changeset
|
645 feedback = ( |
|
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diff
changeset
|
646 D_( |
|
2643
189e38fb11ff
core: style improvments (90 chars limit)
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diff
changeset
|
647 u"WARNING: received unencrypted data in a supposedly encrypted " |
|
189e38fb11ff
core: style improvments (90 chars limit)
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2624
diff
changeset
|
648 u"context" |
|
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changeset
|
649 ), |
|
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650 ) |
|
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|
651 client.feedback(from_jid, feedback) |
|
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|
652 except potr.context.NotEncryptedError: |
|
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653 msg = D_(u"WARNING: received OTR encrypted data in an unencrypted context") |
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|
654 log.warning(msg) |
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|
655 feedback = msg |
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|
656 client.feedback(from_jid, msg) |
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|
657 raise failure.Failure(exceptions.CancelError(msg)) |
|
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plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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|
658 except potr.context.ErrorReceived as e: |
|
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|
659 msg = D_(u"WARNING: received OTR error message: {msg}".format(msg=e)) |
|
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plugin OTR: catch and log potr.context.ErrorReceived instead of raising it.
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|
660 log.warning(msg) |
|
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|
661 feedback = msg |
|
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changeset
|
662 client.feedback(from_jid, msg) |
|
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|
663 raise failure.Failure(exceptions.CancelError(msg)) |
|
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|
664 except potr.crypt.InvalidParameterError as e: |
|
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|
665 msg = D_(u"Error while trying de decrypt OTR message: {msg}".format(msg=e)) |
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|
666 log.warning(msg) |
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changeset
|
667 feedback = msg |
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changeset
|
668 client.feedback(from_jid, msg) |
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changeset
|
669 raise failure.Failure(exceptions.CancelError(msg)) |
|
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|
670 except StopIteration: |
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diff
changeset
|
671 return data |
| 2128 | 672 else: |
| 673 encrypted = True | |
| 1055 | 674 |
| 2128 | 675 if encrypted: |
| 1055 | 676 if res[0] != None: |
| 677 # decrypted messages handling. | |
|
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|
678 # receiveMessage() will return a tuple, |
|
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|
679 # the first part of which will be the decrypted message |
|
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680 data["message"] = { |
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681 "": res[0].decode("utf-8") |
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682 } # FIXME: Q&D fix for message refactoring, message is now a dict |
|
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|
683 try: |
|
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|
684 # we want to keep message in history, even if no store is |
|
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|
685 # requested in message hints |
|
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|
686 del data[u"history"] |
|
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|
687 except KeyError: |
|
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|
688 pass |
| 2128 | 689 # TODO: add skip history as an option, but by default we don't skip it |
|
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|
690 # data[u'history'] = C.HISTORY_SKIP # we send the decrypted message to |
|
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|
691 # frontends, but we don't want it in |
|
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|
692 # history |
| 1055 | 693 else: |
|
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|
694 raise failure.Failure( |
|
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|
695 exceptions.CancelError("Cancelled by OTR") |
|
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|
696 ) # no message at all (no history, no signal) |
|
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diff
changeset
|
697 |
|
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changeset
|
698 client.encryption.markAsEncrypted(data) |
|
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|
699 trusted = otrctx.isTrusted() |
|
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|
700 |
|
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diff
changeset
|
701 if trusted: |
|
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diff
changeset
|
702 client.encryption.markAsTrusted(data) |
|
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parents:
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diff
changeset
|
703 else: |
|
3dd265d281e1
plugin OTR: fixed a bug which was tagging every message as "encrypted"
Goffi <goffi@goffi.org>
parents:
2743
diff
changeset
|
704 client.encryption.markAsUntrusted(data) |
|
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changeset
|
705 |
| 2128 | 706 return data |
| 1055 | 707 |
| 2128 | 708 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
|
709 """This profile must be skipped because the frontend manages OTR itself, |
| 2128 | 710 |
| 711 but we still need to check if the message must be stored in history or not | |
| 712 """ | |
|
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|
713 # XXX: FIXME: this should not be done on a per-profile basis, but per-message |
|
1955
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
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diff
changeset
|
714 try: |
|
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|
715 message = ( |
|
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changeset
|
716 data["message"].itervalues().next().encode("utf-8") |
|
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changeset
|
717 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
1955
633b5c21aefd
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1934
diff
changeset
|
718 except StopIteration: |
|
633b5c21aefd
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parents:
1934
diff
changeset
|
719 return data |
|
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backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
720 if message.startswith(potr.proto.OTRTAG): |
|
2643
189e38fb11ff
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
721 # FIXME: it may be better to cancel the message and send it direclty to |
|
189e38fb11ff
core: style improvments (90 chars limit)
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
722 # bridge |
|
189e38fb11ff
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Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
723 # this is used by Libervia, but this may send garbage message to |
|
189e38fb11ff
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
724 # other frontends |
|
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diff
changeset
|
725 # if they are used at the same time as Libervia. |
|
c0577837680a
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Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
726 # Hard to avoid with decryption on Libervia though. |
|
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diff
changeset
|
727 data[u"history"] = C.HISTORY_SKIP |
|
1174
bc811915a96a
plugin OTR: do not save in history the encrypted messages for skipped profiles
souliane <souliane@mailoo.org>
parents:
1171
diff
changeset
|
728 return data |
|
bc811915a96a
plugin OTR: do not save in history the encrypted messages for skipped profiles
souliane <souliane@mailoo.org>
parents:
1171
diff
changeset
|
729 |
|
1963
a2bc5089c2eb
backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
parents:
1955
diff
changeset
|
730 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
|
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diff
changeset
|
731 if message_elt.getAttribute("type") == C.MESS_TYPE_GROUPCHAT: |
| 2128 | 732 # OTR is not possible in group chats |
| 733 return True | |
| 734 if client.profile in self.skipped_profiles: | |
| 735 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles) | |
|
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
|
736 else: |
| 2128 | 737 post_treat.addCallback(self._receivedTreatment, client) |
| 1055 | 738 return True |
| 739 | |
|
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diff
changeset
|
740 def _sendMessageDataTrigger(self, client, mess_data): |
|
2653
7213caa5c5d0
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Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
741 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
|
742 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
|
743 return |
|
2653
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Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
744 to_jid = mess_data['to'] |
|
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
|
745 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
|
746 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
|
747 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
|
748 ) # 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
|
749 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
|
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diff
changeset
|
750 message_elt = mess_data["xml"] |
|
2138
6e509ee853a8
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parents:
2132
diff
changeset
|
751 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
|
752 log.debug(u"encrypting message") |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
753 body = None |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
754 for child in list(message_elt.children): |
|
2624
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parents:
2562
diff
changeset
|
755 if child.name == "body": |
|
2138
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
756 # we remove all unencrypted body, |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
757 # and will only encrypt the first one |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
758 if body is None: |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
759 body = child |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
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parents:
2132
diff
changeset
|
760 message_elt.children.remove(child) |
|
2624
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diff
changeset
|
761 elif child.name == "html": |
|
2138
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plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
762 # we don't want any XHTML-IM element |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
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parents:
2132
diff
changeset
|
763 message_elt.children.remove(child) |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
764 if body is None: |
|
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
765 log.warning(u"No message found") |
|
1168
39572f9d5249
plugin OTR: fixes handling of the FINISHED state
souliane <souliane@mailoo.org>
parents:
1149
diff
changeset
|
766 else: |
|
2138
6e509ee853a8
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Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
767 self._p_carbons.setPrivate(message_elt) |
|
2653
7213caa5c5d0
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Goffi <goffi@goffi.org>
parents:
2643
diff
changeset
|
768 self._p_hints.addHintElements(message_elt, [ |
|
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
|
769 self._p_hints.HINT_NO_COPY, |
|
7213caa5c5d0
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770 self._p_hints.HINT_NO_PERMANENT_STORE]) |
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771 otrctx.sendMessage(0, unicode(body).encode("utf-8"), appdata=mess_data) |
| 1055 | 772 else: |
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773 feedback = D_( |
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774 u"Your message was not sent because your correspondent closed the " |
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775 u"encrypted conversation on his/her side. " |
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776 u"Either close your own side, or refresh the session." |
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777 ) |
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778 log.warning(_(u"Message discarded because closed encryption channel")) |
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779 client.feedback(to_jid, feedback) |
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780 raise failure.Failure(exceptions.CancelError(u"Cancelled by OTR plugin")) |
| 2128 | 781 |
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782 def sendMessageTrigger(self, client, mess_data, pre_xml_treatments, |
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783 post_xml_treatments): |
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784 if mess_data["type"] == "groupchat": |
| 1055 | 785 return True |
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786 |
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787 if client.profile in self.skipped_profiles: |
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788 # FIXME: should not be done on a per-profile basis |
| 2128 | 789 return True |
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790 |
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791 to_jid = copy.copy(mess_data["to"]) |
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792 if client.encryption.getSession(to_jid.userhostJID()): |
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793 # there is already an encrypted session with this entity |
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794 return True |
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795 |
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796 if not to_jid.resource: |
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797 to_jid.resource = self.host.memory.getMainResource( |
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798 client, to_jid |
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799 ) # FIXME: full jid may not be known |
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800 |
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801 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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802 |
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803 if otrctx.state != potr.context.STATE_PLAINTEXT: |
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804 client.encryption.start(to_jid, NS_OTR) |
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805 client.encryption.setEncryptionFlag(mess_data) |
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806 if not mess_data["to"].resource: |
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807 # if not resource was given, we force it here |
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808 mess_data["to"] = to_jid |
| 2128 | 809 return True |
| 1055 | 810 |
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811 def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile): |
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812 if show != C.PRESENCE_UNAVAILABLE: |
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plugin sec_otr: a trigger was not returning True
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813 return True |
| 2128 | 814 client = self.host.getClient(profile) |
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815 if not entity.resource: |
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816 try: |
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817 entity.resource = self.host.memory.getMainResource( |
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818 client, entity |
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819 ) # FIXME: temporary and unsecure, must be changed when frontends |
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820 # are refactored |
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821 except exceptions.UnknownEntityError: |
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822 return True # entity was not connected |
| 2128 | 823 if entity in client._otr_context_manager.contexts: |
| 824 otrctx = client._otr_context_manager.getContextForUser(entity) | |
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825 otrctx.disconnect() |
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826 return True |