Mercurial > libervia-backend
annotate sat/plugins/plugin_sec_otr.py @ 2647:1bf7e89fded0
plugin XEP-0060: added singleton ID ("current")
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 29 Jul 2018 19:23:01 +0200 |
| parents | 189e38fb11ff |
| children | 7213caa5c5d0 |
| rev | line source |
|---|---|
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1 #!/usr/bin/env python2 |
| 1055 | 2 # -*- coding: utf-8 -*- |
| 3 | |
| 4 # SAT plugin for OTR encryption | |
| 2483 | 5 # Copyright (C) 2009-2018 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 | |
| 2128 | 52 NS_OTR = "otr_plugin" |
| 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): | |
| 1095 | 77 def __init__(self, host, account, other_jid): |
| 78 super(Context, self).__init__(account, other_jid) | |
| 1055 | 79 self.host = host |
| 80 | |
| 81 def getPolicy(self, key): | |
| 82 if key in DEFAULT_POLICY_FLAGS: | |
| 83 return DEFAULT_POLICY_FLAGS[key] | |
| 84 else: | |
| 85 return False | |
| 86 | |
| 1095 | 87 def inject(self, msg_str, appdata=None): |
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88 """Inject encrypted data in the stream |
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89 |
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90 if appdata is not None, we are sending a message in sendMessageDataTrigger |
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91 stanza will be injected directly if appdata is None, |
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92 else we just update the element and follow normal workflow |
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93 @param msg_str(str): encrypted message body |
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94 @param appdata(None, dict): None for signal message, |
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95 message data when an encrypted message is going to be sent |
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96 """ |
| 1095 | 97 assert isinstance(self.peer, jid.JID) |
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98 msg = msg_str.decode("utf-8") |
| 1095 | 99 client = self.user.client |
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100 log.debug(u"injecting encrypted message to {to}".format(to=self.peer)) |
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101 if appdata is None: |
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102 mess_data = { |
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103 "from": client.jid, |
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104 "to": self.peer, |
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105 "uid": unicode(uuid.uuid4()), |
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106 "message": {"": msg}, |
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107 "subject": {}, |
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108 "type": "chat", |
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109 "extra": {}, |
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110 "timestamp": time.time(), |
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111 } |
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112 client.generateMessageXML(mess_data) |
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113 client.send(mess_data["xml"]) |
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114 else: |
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115 message_elt = appdata[u"xml"] |
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116 assert message_elt.name == u"message" |
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117 message_elt.addElement("body", content=msg) |
| 1055 | 118 |
| 119 def setState(self, state): | |
| 2128 | 120 client = self.user.client |
| 1095 | 121 old_state = self.state |
| 1055 | 122 super(Context, self).setState(state) |
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123 log.debug(u"setState: %s (old_state=%s)" % (state, old_state)) |
| 1095 | 124 |
| 125 if state == potr.context.STATE_PLAINTEXT: | |
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126 feedback = _(u"/!\\ conversation with %(other_jid)s is now UNENCRYPTED") % { |
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127 "other_jid": self.peer.full() |
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128 } |
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129 self.host.bridge.otrState( |
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130 OTR_STATE_UNENCRYPTED, self.peer.full(), client.profile |
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131 ) |
| 1095 | 132 elif state == potr.context.STATE_ENCRYPTED: |
| 133 try: | |
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134 trusted = self.getCurrentTrust() |
| 1095 | 135 except TypeError: |
| 136 trusted = False | |
| 137 trusted_str = _(u"trusted") if trusted else _(u"untrusted") | |
| 138 | |
| 139 if old_state == potr.context.STATE_ENCRYPTED: | |
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140 feedback = D_( |
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141 u"{trusted} OTR conversation with {other_jid} REFRESHED" |
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142 ).format(trusted=trusted_str, other_jid=self.peer.full()) |
| 1095 | 143 else: |
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144 feedback = D_( |
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145 u"{trusted} encrypted OTR conversation started with {other_jid}\n" |
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146 u"{extra_info}" |
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147 ).format( |
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148 trusted=trusted_str, |
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149 other_jid=self.peer.full(), |
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150 extra_info=NO_ADV_FEATURES, |
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151 ) |
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152 self.host.bridge.otrState( |
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153 OTR_STATE_ENCRYPTED, self.peer.full(), client.profile |
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154 ) |
| 1095 | 155 elif state == potr.context.STATE_FINISHED: |
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156 feedback = D_(u"OTR conversation with {other_jid} is FINISHED").format( |
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157 other_jid=self.peer.full() |
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158 ) |
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159 self.host.bridge.otrState( |
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160 OTR_STATE_UNENCRYPTED, self.peer.full(), client.profile |
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161 ) |
| 1095 | 162 else: |
| 2125 | 163 log.error(D_(u"Unknown OTR state")) |
| 1095 | 164 return |
| 165 | |
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166 client.feedback(self.peer, feedback) |
| 1055 | 167 |
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168 def disconnect(self): |
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169 """Disconnect the session.""" |
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170 if self.state != potr.context.STATE_PLAINTEXT: |
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171 super(Context, self).disconnect() |
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172 |
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173 def finish(self): |
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174 """Finish the session |
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175 |
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176 avoid to send any message but the user still has to end the session himself. |
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177 """ |
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178 if self.state == potr.context.STATE_ENCRYPTED: |
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179 self.processTLVs([potr.proto.DisconnectTLV()]) |
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180 |
| 1055 | 181 |
| 182 class Account(potr.context.Account): | |
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183 # TODO: manage trusted keys: if a fingerprint is not used anymore, |
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184 # we have no way to remove it from database yet (same thing for a |
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185 # correspondent jid) |
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186 # TODO: manage explicit message encryption |
| 1055 | 187 |
| 1095 | 188 def __init__(self, host, client): |
| 189 log.debug(u"new account: %s" % client.jid) | |
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190 if not client.jid.resource: |
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191 log.warning("Account created without resource") |
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192 super(Account, self).__init__(unicode(client.jid), "xmpp", 1024) |
| 1095 | 193 self.host = host |
| 194 self.client = client | |
| 1055 | 195 |
| 196 def loadPrivkey(self): | |
| 1095 | 197 log.debug(u"loadPrivkey") |
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198 return self.privkey |
| 1055 | 199 |
| 200 def savePrivkey(self): | |
| 1095 | 201 log.debug(u"savePrivkey") |
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202 if self.privkey is None: |
| 2125 | 203 raise exceptions.InternalError(_(u"Save is called but privkey is None !")) |
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204 priv_key = self.privkey.serializePrivateKey().encode("hex") |
| 1095 | 205 d = self.host.memory.encryptValue(priv_key, self.client.profile) |
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206 |
| 1095 | 207 def save_encrypted_key(encrypted_priv_key): |
| 2128 | 208 self.client._otr_data[PRIVATE_KEY] = encrypted_priv_key |
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209 |
| 1095 | 210 d.addCallback(save_encrypted_key) |
| 1055 | 211 |
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212 def loadTrusts(self): |
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213 trust_data = self.client._otr_data.get("trust", {}) |
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214 for jid_, jid_data in trust_data.iteritems(): |
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215 for fingerprint, trust_level in jid_data.iteritems(): |
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216 log.debug( |
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217 u'setting trust for {jid}: [{fingerprint}] = "{trust_level}"'.format( |
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218 jid=jid_, fingerprint=fingerprint, trust_level=trust_level |
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219 ) |
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220 ) |
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221 self.trusts.setdefault(jid.JID(jid_), {})[fingerprint] = trust_level |
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222 |
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223 def saveTrusts(self): |
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224 log.debug(u"saving trusts for {profile}".format(profile=self.client.profile)) |
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225 log.debug(u"trusts = {}".format(self.client._otr_data["trust"])) |
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226 self.client._otr_data.force("trust") |
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227 |
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228 def setTrust(self, other_jid, fingerprint, trustLevel): |
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229 try: |
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230 trust_data = self.client._otr_data["trust"] |
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231 except KeyError: |
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232 trust_data = {} |
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233 self.client._otr_data["trust"] = trust_data |
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234 jid_data = trust_data.setdefault(other_jid.full(), {}) |
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235 jid_data[fingerprint] = trustLevel |
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236 super(Account, self).setTrust(other_jid, fingerprint, trustLevel) |
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237 |
| 1055 | 238 |
| 239 class ContextManager(object): | |
| 240 def __init__(self, host, client): | |
| 241 self.host = host | |
| 1095 | 242 self.account = Account(host, client) |
| 1055 | 243 self.contexts = {} |
| 244 | |
| 1095 | 245 def startContext(self, other_jid): |
| 246 assert isinstance(other_jid, jid.JID) | |
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247 context = self.contexts.setdefault( |
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248 other_jid, Context(self.host, self.account, other_jid) |
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249 ) |
| 1095 | 250 return context |
| 1055 | 251 |
| 252 def getContextForUser(self, other): | |
| 1095 | 253 log.debug(u"getContextForUser [%s]" % other) |
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254 if not other.resource: |
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255 log.warning(u"getContextForUser called with a bare jid: %s" % other.full()) |
| 1055 | 256 return self.startContext(other) |
| 257 | |
| 258 | |
| 259 class OTR(object): | |
| 260 def __init__(self, host): | |
| 1095 | 261 log.info(_(u"OTR plugin initialization")) |
| 1055 | 262 self.host = host |
| 263 self.context_managers = {} | |
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264 self.skipped_profiles = ( |
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265 set() |
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266 ) # FIXME: OTR should not be skipped per profile, this need to be refactored |
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267 self._p_hints = host.plugins[u"XEP-0334"] |
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268 self._p_carbons = host.plugins[u"XEP-0280"] |
| 1055 | 269 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=100000) |
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270 host.trigger.add("sendMessage", self.sendMessageTrigger, priority=100000) |
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271 host.trigger.add("sendMessageData", self._sendMessageDataTrigger) |
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272 host.bridge.addMethod( |
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273 "skipOTR", ".plugin", in_sign="s", out_sign="", method=self._skipOTR |
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274 ) # FIXME: must be removed, must be done on per-message basis |
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275 host.bridge.addSignal( |
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276 "otrState", ".plugin", signature="sss" |
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277 ) # args: state, destinee_jid, profile |
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278 host.importMenu( |
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279 (OTR_MENU, D_(u"Start/Refresh")), |
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280 self._otrStartRefresh, |
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281 security_limit=0, |
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282 help_string=D_(u"Start or refresh an OTR session"), |
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283 type_=C.MENU_SINGLE, |
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284 ) |
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285 host.importMenu( |
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286 (OTR_MENU, D_(u"End session")), |
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287 self._otrSessionEnd, |
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288 security_limit=0, |
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289 help_string=D_(u"Finish an OTR session"), |
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290 type_=C.MENU_SINGLE, |
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291 ) |
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292 host.importMenu( |
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293 (OTR_MENU, D_(u"Authenticate")), |
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294 self._otrAuthenticate, |
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295 security_limit=0, |
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296 help_string=D_(u"Authenticate user/see your fingerprint"), |
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297 type_=C.MENU_SINGLE, |
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298 ) |
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299 host.importMenu( |
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300 (OTR_MENU, D_(u"Drop private key")), |
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301 self._dropPrivKey, |
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302 security_limit=0, |
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303 type_=C.MENU_SINGLE, |
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304 ) |
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305 host.trigger.add("presenceReceived", self._presenceReceivedTrigger) |
| 1055 | 306 |
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307 def _skipOTR(self, profile): |
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308 """Tell the backend to not handle OTR for this profile. |
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309 |
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310 @param profile (str): %(doc_profile)s |
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311 """ |
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312 # FIXME: should not be done per profile but per message, using extra data |
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313 # for message received, profile wide hook may be need, but client |
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314 # should be used anyway instead of a class attribute |
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315 self.skipped_profiles.add(profile) |
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316 |
| 1095 | 317 @defer.inlineCallbacks |
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318 def profileConnected(self, client): |
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319 if client.profile in self.skipped_profiles: |
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320 return |
| 2128 | 321 ctxMng = client._otr_context_manager = ContextManager(self.host, client) |
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322 client._otr_data = persistent.PersistentBinaryDict(NS_OTR, client.profile) |
| 2128 | 323 yield client._otr_data.load() |
| 324 encrypted_priv_key = client._otr_data.get(PRIVATE_KEY, None) | |
| 1095 | 325 if encrypted_priv_key is not None: |
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326 priv_key = yield self.host.memory.decryptValue( |
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327 encrypted_priv_key, client.profile |
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328 ) |
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329 ctxMng.account.privkey = potr.crypt.PK.parsePrivateKey( |
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330 priv_key.decode("hex") |
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331 )[0] |
| 1095 | 332 else: |
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333 ctxMng.account.privkey = None |
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334 ctxMng.account.loadTrusts() |
| 1055 | 335 |
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336 def profileDisconnected(self, client): |
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337 if client.profile in self.skipped_profiles: |
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338 self.skipped_profiles.remove(client.profile) |
| 2128 | 339 return |
| 340 for context in client._otr_context_manager.contexts.values(): | |
| 341 context.disconnect() | |
| 342 del client._otr_context_manager | |
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343 |
| 2125 | 344 def _otrStartRefresh(self, menu_data, profile): |
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345 """Start or refresh an OTR session |
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346 |
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347 @param menu_data: %(menu_data)s |
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348 @param profile: %(doc_profile)s |
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349 """ |
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350 client = self.host.getClient(profile) |
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351 try: |
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352 to_jid = jid.JID(menu_data["jid"]) |
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353 except KeyError: |
| 2125 | 354 log.error(_(u"jid key is not present !")) |
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355 return defer.fail(exceptions.DataError) |
| 2125 | 356 self.startRefresh(client, to_jid) |
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357 return {} |
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358 |
| 2125 | 359 def startRefresh(self, client, to_jid): |
| 360 """Start or refresh an OTR session | |
| 361 | |
| 362 @param to_jid(jid.JID): jid to start encrypted session with | |
| 363 """ | |
| 364 if not to_jid.resource: | |
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365 to_jid.resource = self.host.memory.getMainResource( |
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366 client, to_jid |
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367 ) # FIXME: temporary and unsecure, must be changed when frontends |
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368 # are refactored |
| 2128 | 369 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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370 query = otrctx.sendMessage(0, "?OTRv?") |
| 2125 | 371 otrctx.inject(query) |
| 372 | |
| 373 def _otrSessionEnd(self, menu_data, profile): | |
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374 """End an OTR session |
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375 |
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376 @param menu_data: %(menu_data)s |
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377 @param profile: %(doc_profile)s |
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378 """ |
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379 client = self.host.getClient(profile) |
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380 try: |
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381 to_jid = jid.JID(menu_data["jid"]) |
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382 except KeyError: |
| 2125 | 383 log.error(_(u"jid key is not present !")) |
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384 return defer.fail(exceptions.DataError) |
| 2125 | 385 self.endSession(client, to_jid) |
| 386 return {} | |
| 387 | |
| 388 def endSession(self, client, to_jid): | |
| 389 """End an OTR session""" | |
| 390 if not to_jid.resource: | |
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391 to_jid.resource = self.host.memory.getMainResource( |
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392 client, to_jid |
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393 ) # FIXME: temporary and unsecure, must be changed when frontends |
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394 # are refactored |
| 2128 | 395 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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396 otrctx.disconnect() |
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397 return {} |
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398 |
| 2125 | 399 def _otrAuthenticate(self, menu_data, profile): |
| 400 """End an OTR session | |
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401 |
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402 @param menu_data: %(menu_data)s |
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403 @param profile: %(doc_profile)s |
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404 """ |
|
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405 client = self.host.getClient(profile) |
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406 try: |
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407 to_jid = jid.JID(menu_data["jid"]) |
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408 except KeyError: |
| 2125 | 409 log.error(_(u"jid key is not present !")) |
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410 return defer.fail(exceptions.DataError) |
| 2125 | 411 return self.authenticate(client, to_jid) |
| 412 | |
| 413 def authenticate(self, client, to_jid): | |
| 414 """Authenticate other user and see our own fingerprint""" | |
| 415 if not to_jid.resource: | |
|
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416 to_jid.resource = self.host.memory.getMainResource( |
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417 client, to_jid |
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418 ) # FIXME: temporary and unsecure, must be changed when frontends |
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419 # are refactored |
| 2128 | 420 ctxMng = client._otr_context_manager |
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421 otrctx = ctxMng.getContextForUser(to_jid) |
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422 priv_key = ctxMng.account.privkey |
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423 |
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424 if priv_key is None: |
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425 # we have no private key yet |
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426 dialog = xml_tools.XMLUI( |
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427 C.XMLUI_DIALOG, |
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428 dialog_opt={ |
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429 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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430 C.XMLUI_DATA_MESS: _( |
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431 u"You have no private key yet, start an OTR conversation to " |
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432 u"have one" |
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433 ), |
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434 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_WARNING, |
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435 }, |
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436 title=_(u"No private key"), |
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437 ) |
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438 return {"xmlui": dialog.toXml()} |
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439 |
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440 other_fingerprint = otrctx.getCurrentKey() |
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441 |
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442 if other_fingerprint is None: |
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443 # we have a private key, but not the fingerprint of our correspondent |
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444 dialog = xml_tools.XMLUI( |
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445 C.XMLUI_DIALOG, |
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446 dialog_opt={ |
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447 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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448 C.XMLUI_DATA_MESS: _( |
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449 u"Your fingerprint is:\n{fingerprint}\n\n" |
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450 u"Start an OTR conversation to have your correspondent one." |
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451 ).format(fingerprint=priv_key), |
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452 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_INFO, |
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453 }, |
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454 title=_(u"Fingerprint"), |
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455 ) |
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456 return {"xmlui": dialog.toXml()} |
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457 |
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458 def setTrust(raw_data, profile): |
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459 # This method is called when authentication form is submited |
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460 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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461 if data["match"] == "yes": |
| 2128 | 462 otrctx.setCurrentTrust(OTR_STATE_TRUSTED) |
| 2125 | 463 note_msg = _(u"Your correspondent {correspondent} is now TRUSTED") |
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464 self.host.bridge.otrState( |
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465 OTR_STATE_TRUSTED, to_jid.full(), client.profile |
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466 ) |
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467 else: |
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468 otrctx.setCurrentTrust("") |
| 2125 | 469 note_msg = _(u"Your correspondent {correspondent} is now UNTRUSTED") |
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470 self.host.bridge.otrState( |
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471 OTR_STATE_UNTRUSTED, to_jid.full(), client.profile |
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472 ) |
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473 note = xml_tools.XMLUI( |
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474 C.XMLUI_DIALOG, |
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475 dialog_opt={ |
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476 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_NOTE, |
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477 C.XMLUI_DATA_MESS: note_msg.format(correspondent=otrctx.peer), |
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478 }, |
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479 ) |
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480 return {"xmlui": note.toXml()} |
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481 |
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482 submit_id = self.host.registerCallback(setTrust, with_data=True, one_shot=True) |
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483 trusted = bool(otrctx.getCurrentTrust()) |
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484 |
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485 xmlui = xml_tools.XMLUI( |
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486 C.XMLUI_FORM, |
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487 title=_("Authentication (%s)") % to_jid.full(), |
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488 submit_id=submit_id, |
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489 ) |
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490 xmlui.addText(_(AUTH_TXT)) |
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491 xmlui.addDivider() |
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492 xmlui.addText( |
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493 D_(u"Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key) |
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494 ) |
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495 xmlui.addText( |
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496 D_(u"Your correspondent fingerprint should be:\n{fingerprint}").format( |
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497 fingerprint=other_fingerprint |
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498 ) |
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499 ) |
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500 xmlui.addDivider("blank") |
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501 xmlui.changeContainer("pairs") |
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502 xmlui.addLabel(D_(u"Is your correspondent fingerprint the same as here ?")) |
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503 xmlui.addList( |
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504 "match", [("yes", _("yes")), ("no", _("no"))], ["yes" if trusted else "no"] |
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505 ) |
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506 return {"xmlui": xmlui.toXml()} |
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507 |
|
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508 def _dropPrivKey(self, menu_data, profile): |
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509 """Drop our private Key |
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510 |
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511 @param menu_data: %(menu_data)s |
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512 @param profile: %(doc_profile)s |
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513 """ |
|
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514 client = self.host.getClient(profile) |
|
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515 try: |
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516 to_jid = jid.JID(menu_data["jid"]) |
|
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517 if not to_jid.resource: |
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518 to_jid.resource = self.host.memory.getMainResource( |
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519 client, to_jid |
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520 ) # FIXME: temporary and unsecure, must be changed when frontends |
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521 # are refactored |
|
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522 except KeyError: |
| 2125 | 523 log.error(_(u"jid key is not present !")) |
|
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524 return defer.fail(exceptions.DataError) |
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525 |
| 2128 | 526 ctxMng = client._otr_context_manager |
|
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527 if ctxMng.account.privkey is None: |
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528 return { |
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529 "xmlui": xml_tools.note(_(u"You don't have a private key yet !")).toXml() |
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530 } |
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531 |
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|
532 def dropKey(data, profile): |
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533 if C.bool(data["answer"]): |
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534 # we end all sessions |
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535 for context in ctxMng.contexts.values(): |
|
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|
536 context.disconnect() |
|
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537 ctxMng.account.privkey = None |
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538 ctxMng.account.getPrivkey() # as account.privkey is None, getPrivkey |
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539 # will generate a new key, and save it |
|
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540 return { |
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541 "xmlui": xml_tools.note( |
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542 D_(u"Your private key has been dropped") |
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|
543 ).toXml() |
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|
544 } |
|
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|
545 return {} |
|
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|
546 |
|
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|
547 submit_id = self.host.registerCallback(dropKey, with_data=True, one_shot=True) |
|
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|
548 |
|
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549 confirm = xml_tools.XMLUI( |
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550 C.XMLUI_DIALOG, |
|
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|
551 title=_(u"Confirm private key drop"), |
|
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|
552 dialog_opt={"type": C.XMLUI_DIALOG_CONFIRM, "message": _(DROP_TXT)}, |
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|
553 submit_id=submit_id, |
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554 ) |
|
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555 return {"xmlui": confirm.toXml()} |
|
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plugin OTR: added ability to drop private key
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556 |
| 2128 | 557 def _receivedTreatment(self, data, client): |
|
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558 from_jid = data["from"] |
| 1095 | 559 log.debug(u"_receivedTreatment [from_jid = %s]" % from_jid) |
| 2128 | 560 otrctx = client._otr_context_manager.getContextForUser(from_jid) |
| 1055 | 561 |
| 562 try: | |
|
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563 message = ( |
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564 data["message"].itervalues().next() |
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565 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
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566 res = otrctx.receiveMessage(message.encode("utf-8")) |
| 1055 | 567 except potr.context.UnencryptedMessage: |
| 2128 | 568 encrypted = False |
| 1095 | 569 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
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570 log.warning( |
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571 u"Received unencrypted message in an encrypted context (from {jid})" |
|
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572 .format(jid=from_jid.full()) |
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573 ) |
| 2125 | 574 |
|
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575 feedback = ( |
|
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|
576 D_( |
|
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577 u"WARNING: received unencrypted data in a supposedly encrypted " |
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578 u"context" |
|
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579 ), |
|
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580 ) |
|
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|
581 client.feedback(from_jid, feedback) |
|
1955
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582 except StopIteration: |
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|
583 return data |
| 2128 | 584 else: |
| 585 encrypted = True | |
| 1055 | 586 |
| 2128 | 587 if encrypted: |
| 1055 | 588 if res[0] != None: |
| 589 # decrypted messages handling. | |
|
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590 # receiveMessage() will return a tuple, |
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591 # the first part of which will be the decrypted message |
|
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592 data["message"] = { |
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593 "": res[0].decode("utf-8") |
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594 } # FIXME: Q&D fix for message refactoring, message is now a dict |
|
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595 try: |
|
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|
596 # we want to keep message in history, even if no store is |
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597 # requested in message hints |
|
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598 del data[u"history"] |
|
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599 except KeyError: |
|
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|
600 pass |
| 2128 | 601 # TODO: add skip history as an option, but by default we don't skip it |
|
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602 # data[u'history'] = C.HISTORY_SKIP # we send the decrypted message to |
|
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603 # frontends, but we don't want it in |
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604 # history |
| 1055 | 605 else: |
|
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606 log.warning( |
|
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|
607 u"An encrypted message was expected, but got {}".format( |
|
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|
608 data["message"] |
|
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|
609 ) |
|
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|
610 ) |
|
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|
611 raise failure.Failure( |
|
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|
612 exceptions.CancelError("Cancelled by OTR") |
|
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613 ) # no message at all (no history, no signal) |
| 2128 | 614 return data |
| 1055 | 615 |
| 2128 | 616 def _receivedTreatmentForSkippedProfiles(self, data): |
|
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|
617 """This profile must be skipped because the frontend manages OTR itself, |
| 2128 | 618 |
| 619 but we still need to check if the message must be stored in history or not | |
| 620 """ | |
|
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|
621 # XXX: FIXME: this should not be done on a per-profile basis, but per-message |
|
1955
633b5c21aefd
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|
622 try: |
|
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|
623 message = ( |
|
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|
624 data["message"].itervalues().next().encode("utf-8") |
|
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|
625 ) # FIXME: Q&D fix for message refactoring, message is now a dict |
|
1955
633b5c21aefd
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parents:
1934
diff
changeset
|
626 except StopIteration: |
|
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diff
changeset
|
627 return data |
|
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diff
changeset
|
628 if message.startswith(potr.proto.OTRTAG): |
|
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|
629 # FIXME: it may be better to cancel the message and send it direclty to |
|
189e38fb11ff
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|
630 # bridge |
|
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changeset
|
631 # this is used by Libervia, but this may send garbage message to |
|
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|
632 # other frontends |
|
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|
633 # if they are used at the same time as Libervia. |
|
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|
634 # Hard to avoid with decryption on Libervia though. |
|
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|
635 data[u"history"] = C.HISTORY_SKIP |
|
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changeset
|
636 return data |
|
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changeset
|
637 |
|
1963
a2bc5089c2eb
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parents:
1955
diff
changeset
|
638 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
|
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|
639 if message_elt.getAttribute("type") == C.MESS_TYPE_GROUPCHAT: |
| 2128 | 640 # OTR is not possible in group chats |
| 641 return True | |
| 642 if client.profile in self.skipped_profiles: | |
| 643 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles) | |
|
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|
644 else: |
| 2128 | 645 post_treat.addCallback(self._receivedTreatment, client) |
| 1055 | 646 return True |
| 647 | |
|
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|
648 def _sendMessageDataTrigger(self, client, mess_data): |
|
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|
649 if not "OTR" in mess_data: |
|
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|
650 return |
|
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|
651 otrctx = mess_data["OTR"] |
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|
652 message_elt = mess_data["xml"] |
|
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|
653 to_jid = mess_data["to"] |
|
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changeset
|
654 if otrctx.state == potr.context.STATE_ENCRYPTED: |
|
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changeset
|
655 log.debug(u"encrypting message") |
|
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|
656 body = None |
|
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changeset
|
657 for child in list(message_elt.children): |
|
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|
658 if child.name == "body": |
|
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changeset
|
659 # we remove all unencrypted body, |
|
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changeset
|
660 # and will only encrypt the first one |
|
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changeset
|
661 if body is None: |
|
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changeset
|
662 body = child |
|
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|
663 message_elt.children.remove(child) |
|
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|
664 elif child.name == "html": |
|
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changeset
|
665 # we don't want any XHTML-IM element |
|
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changeset
|
666 message_elt.children.remove(child) |
|
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changeset
|
667 if body is None: |
|
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changeset
|
668 log.warning(u"No message found") |
|
1168
39572f9d5249
plugin OTR: fixes handling of the FINISHED state
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parents:
1149
diff
changeset
|
669 else: |
|
2138
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changeset
|
670 self._p_carbons.setPrivate(message_elt) |
|
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|
671 otrctx.sendMessage(0, unicode(body).encode("utf-8"), appdata=mess_data) |
| 1055 | 672 else: |
|
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|
673 feedback = D_( |
|
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changeset
|
674 u"Your message was not sent because your correspondent closed the " |
|
189e38fb11ff
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|
675 u"encrypted conversation on his/her side. " |
|
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|
676 u"Either close your own side, or refresh the session." |
|
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|
677 ) |
|
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changeset
|
678 log.warning(_(u"Message discarded because closed encryption channel")) |
|
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diff
changeset
|
679 client.feedback(to_jid, feedback) |
|
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|
680 raise failure.Failure(exceptions.CancelError(u"Cancelled by OTR plugin")) |
| 2128 | 681 |
|
2643
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core: style improvments (90 chars limit)
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changeset
|
682 def sendMessageTrigger(self, client, mess_data, pre_xml_treatments, |
|
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changeset
|
683 post_xml_treatments): |
|
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|
684 if mess_data["type"] == "groupchat": |
| 1055 | 685 return True |
|
2643
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parents:
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diff
changeset
|
686 |
|
189e38fb11ff
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parents:
2624
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changeset
|
687 if client.profile in self.skipped_profiles: |
|
189e38fb11ff
core: style improvments (90 chars limit)
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parents:
2624
diff
changeset
|
688 # FIXME: should not be done on a per-profile basis |
| 2128 | 689 return True |
|
2643
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core: style improvments (90 chars limit)
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2624
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changeset
|
690 |
|
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691 to_jid = copy.copy(mess_data["to"]) |
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692 if not to_jid.resource: |
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693 to_jid.resource = self.host.memory.getMainResource( |
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694 client, to_jid |
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695 ) # FIXME: full jid may not be known |
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696 |
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697 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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698 |
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parents:
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699 if otrctx.state != potr.context.STATE_PLAINTEXT: |
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700 self._p_hints.addHint(mess_data, self._p_hints.HINT_NO_COPY) |
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parents:
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701 self._p_hints.addHint(mess_data, self._p_hints.HINT_NO_PERMANENT_STORE) |
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702 mess_data["OTR"] = (otrctx) # this indicate that encryption is needed in |
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703 # sendMessageData trigger |
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704 if not mess_data["to"].resource: |
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705 # if not resource was given, we force it here |
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706 mess_data["to"] = to_jid |
| 2128 | 707 return True |
| 1055 | 708 |
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709 def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile): |
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710 if show != C.PRESENCE_UNAVAILABLE: |
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711 return True |
| 2128 | 712 client = self.host.getClient(profile) |
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713 if not entity.resource: |
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714 try: |
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715 entity.resource = self.host.memory.getMainResource( |
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716 client, entity |
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717 ) # FIXME: temporary and unsecure, must be changed when frontends |
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718 # are refactored |
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719 except exceptions.UnknownEntityError: |
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720 return True # entity was not connected |
| 2128 | 721 if entity in client._otr_context_manager.contexts: |
| 722 otrctx = client._otr_context_manager.getContextForUser(entity) | |
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723 otrctx.disconnect() |
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724 return True |