Mercurial > libervia-backend
annotate src/plugins/plugin_sec_otr.py @ 1756:061011fad5b1
plugin XEP-0260: better proxy error handling:
- display a better message in logs
- fixed fallback to IBB
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 17 Dec 2015 22:37:56 +0100 |
| parents | 62cd8fc1aef7 |
| children | d17772b0fe22 |
| rev | line source |
|---|---|
| 1055 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 # SAT plugin for OTR encryption | |
| 1396 | 5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 | |
| 20 # XXX: thanks to Darrik L Mazey for his documentation (https://blog.darmasoft.net/2013/06/30/using-pure-python-otr.html) | |
| 21 # this implentation is based on it | |
| 22 | |
|
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plugin OTR: added start/refresh and end session menus
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23 from sat.core.i18n import _, D_ |
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24 from sat.core.constants import Const as C |
| 1055 | 25 from sat.core.log import getLogger |
| 26 from sat.core import exceptions | |
| 27 log = getLogger(__name__) | |
|
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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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28 from sat.tools import xml_tools |
| 1055 | 29 from twisted.words.protocols.jabber import jid |
| 30 from twisted.python import failure | |
| 1095 | 31 from twisted.internet import defer |
|
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core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
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32 from sat.memory import persistent |
| 1055 | 33 import potr |
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34 import copy |
| 1095 | 35 |
| 36 NS_OTR = "otr_plugin" | |
| 37 PRIVATE_KEY = "PRIVATE KEY" | |
|
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38 MAIN_MENU = D_('OTR') |
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plugin OTR: fixes a couple of typos
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39 AUTH_TXT = D_("To authenticate your correspondent, you need to give your below fingerprint *BY AN EXTERNAL CANAL* (i.e. not in this chat), and check that the one he gives you is the same as below. If there is a mismatch, there can be a spy between you!") |
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plugin OTR: fixes a couple of typos
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40 DROP_TXT = D_("You private key is used to encrypt messages for your correspondent, nobody except you must know it, if you are in doubt, you should drop it!\n\nAre you sure you want to drop your private key?") |
| 1055 | 41 |
| 42 DEFAULT_POLICY_FLAGS = { | |
| 43 'ALLOW_V1':False, | |
| 44 'ALLOW_V2':True, | |
| 45 'REQUIRE_ENCRYPTION':True, | |
| 46 } | |
| 47 | |
| 48 PLUGIN_INFO = { | |
| 49 "name": "OTR", | |
| 50 "import_name": "OTR", | |
| 51 "type": "SEC", | |
| 52 "protocols": [], | |
| 53 "dependencies": [], | |
| 54 "main": "OTR", | |
| 55 "handler": "no", | |
| 56 "description": _("""Implementation of OTR""") | |
| 57 } | |
| 58 | |
| 59 | |
| 60 class Context(potr.context.Context): | |
| 1095 | 61 def __init__(self, host, account, other_jid): |
| 62 super(Context, self).__init__(account, other_jid) | |
| 1055 | 63 self.host = host |
| 64 | |
| 65 def getPolicy(self, key): | |
| 66 if key in DEFAULT_POLICY_FLAGS: | |
| 67 return DEFAULT_POLICY_FLAGS[key] | |
| 68 else: | |
| 69 return False | |
| 70 | |
| 1095 | 71 def inject(self, msg_str, appdata=None): |
| 72 assert isinstance(self.peer, jid.JID) | |
| 73 msg = msg_str.decode('utf-8') | |
| 74 client = self.user.client | |
| 75 log.debug(u'inject(%s, appdata=%s, to=%s)' % (msg, appdata, self.peer)) | |
| 1055 | 76 mess_data = {'message': msg, |
| 77 'type': 'chat', | |
| 78 'from': client.jid, | |
| 1095 | 79 'to': self.peer, |
| 1055 | 80 'subject': None, |
| 81 } | |
| 82 self.host.generateMessageXML(mess_data) | |
| 83 client.xmlstream.send(mess_data['xml']) | |
| 84 | |
| 85 def setState(self, state): | |
| 1095 | 86 old_state = self.state |
| 1055 | 87 super(Context, self).setState(state) |
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plugin OTR: a warning is logged when Account is instancied with a bare jid.
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88 log.debug(u"setState: %s (old_state=%s)" % (state, old_state)) |
| 1095 | 89 |
| 90 if state == potr.context.STATE_PLAINTEXT: | |
| 91 feedback = _(u"/!\\ conversation with %(other_jid)s is now UNENCRYPTED") % {'other_jid': self.peer.full()} | |
| 92 elif state == potr.context.STATE_ENCRYPTED: | |
| 93 try: | |
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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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94 trusted = self.getCurrentTrust() |
| 1095 | 95 except TypeError: |
| 96 trusted = False | |
| 97 trusted_str = _(u"trusted") if trusted else _(u"untrusted") | |
| 98 | |
| 99 if old_state == potr.context.STATE_ENCRYPTED: | |
| 100 feedback = _(u"%(trusted)s OTR conversation with %(other_jid)s REFRESHED") % {'trusted': trusted_str, 'other_jid': self.peer.full()} | |
| 101 else: | |
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plugin OTR: added a warning to tell that the history is not logged anymore and advanced feature are disabled when using OTR
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102 feedback = _(u"%(trusted)s Encrypted OTR conversation started with %(other_jid)s\n/!\\ Your history is not logged anymore, and most of advanced features are disabled !") % {'trusted': trusted_str, 'other_jid': self.peer.full()} |
| 1095 | 103 elif state == potr.context.STATE_FINISHED: |
| 104 feedback = _(u"OTR conversation with %(other_jid)s is FINISHED") % {'other_jid': self.peer.full()} | |
| 105 else: | |
| 106 log.error(_(u"Unknown OTR state")) | |
| 107 return | |
| 108 | |
| 109 client = self.user.client | |
| 110 self.host.bridge.newMessage(client.jid.full(), | |
| 111 feedback, | |
|
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core: a new "info" type is used in newMessage for system messages (not comming from outside)
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112 mess_type=C.MESS_TYPE_INFO, |
| 1095 | 113 to_jid=self.peer.full(), |
| 114 extra={}, | |
| 115 profile=client.profile) | |
| 116 # TODO: send signal to frontends | |
| 1055 | 117 |
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plugin OTR: disconnect the active OTR sessions and delete the context on profile disconnection
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118 def disconnect(self): |
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119 """Disconnect the session.""" |
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120 if self.state != potr.context.STATE_PLAINTEXT: |
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121 super(Context, self).disconnect() |
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122 |
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123 def finish(self): |
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124 """Finish the session - avoid to send any message but the user still has to end the session himself.""" |
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125 if self.state == potr.context.STATE_ENCRYPTED: |
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126 self.processTLVs([potr.proto.DisconnectTLV()]) |
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127 |
| 1055 | 128 |
| 129 class Account(potr.context.Account): | |
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plugin OTR: added ability to drop private key
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130 #TODO: manage trusted keys: if a fingerprint is not used anymore, we have no way to remove it from database yet (same thing for a correspondent jid) |
| 1055 | 131 |
| 1095 | 132 def __init__(self, host, client): |
| 133 log.debug(u"new account: %s" % client.jid) | |
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134 if not client.jid.resource: |
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135 log.warning("Account created without resource") |
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changeset
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136 super(Account, self).__init__(unicode(client.jid), "xmpp", 1024) |
| 1095 | 137 self.host = host |
| 138 self.client = client | |
| 1055 | 139 |
| 140 def loadPrivkey(self): | |
| 1095 | 141 log.debug(u"loadPrivkey") |
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plugin OTR: remove unnecessary attribute SatXMPPClient.otr_priv_key
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142 return self.privkey |
| 1055 | 143 |
| 144 def savePrivkey(self): | |
| 1095 | 145 log.debug(u"savePrivkey") |
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plugin otr: priv_key is better than getPrivKey here, as it should not be None + fixed private key encryption/decryption
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146 if self.privkey is None: |
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plugin otr: priv_key is better than getPrivKey here, as it should not be None + fixed private key encryption/decryption
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147 raise exceptions.InternalError(_("Save is called but privkey is None !")) |
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148 priv_key = self.privkey.serializePrivateKey().encode('hex') |
| 1095 | 149 d = self.host.memory.encryptValue(priv_key, self.client.profile) |
| 150 def save_encrypted_key(encrypted_priv_key): | |
| 151 self.client.otr_data[PRIVATE_KEY] = encrypted_priv_key | |
| 152 d.addCallback(save_encrypted_key) | |
| 1055 | 153 |
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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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154 def loadTrusts(self): |
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155 trust_data = self.client.otr_data.get('trust', {}) |
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156 for jid_, jid_data in trust_data.iteritems(): |
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157 for fingerprint, trust_level in jid_data.iteritems(): |
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158 log.debug(u'setting trust for {jid}: [{fingerprint}] = "{trust_level}"'.format(jid=jid_, fingerprint=fingerprint, trust_level=trust_level)) |
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159 self.trusts.setdefault(jid.JID(jid_), {})[fingerprint] = trust_level |
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160 |
|
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161 def saveTrusts(self): |
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162 log.debug(u"saving trusts for {profile}".format(profile=self.client.profile)) |
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163 log.debug(u"trusts = {}".format(self.client.otr_data['trust'])) |
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164 self.client.otr_data.force('trust') |
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165 |
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166 def setTrust(self, other_jid, fingerprint, trustLevel): |
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167 try: |
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168 trust_data = self.client.otr_data['trust'] |
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169 except KeyError: |
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170 trust_data = {} |
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171 self.client.otr_data['trust'] = trust_data |
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172 jid_data = trust_data.setdefault(other_jid.full(), {}) |
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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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173 jid_data[fingerprint] = trustLevel |
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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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parents:
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174 super(Account, self).setTrust(other_jid, fingerprint, trustLevel) |
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7fcafc3206b1
plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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parents:
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175 |
| 1055 | 176 |
| 177 class ContextManager(object): | |
| 178 | |
| 179 def __init__(self, host, client): | |
| 180 self.host = host | |
| 1095 | 181 self.account = Account(host, client) |
| 1055 | 182 self.contexts = {} |
| 183 | |
| 1095 | 184 def startContext(self, other_jid): |
| 185 assert isinstance(other_jid, jid.JID) | |
| 186 context = self.contexts.setdefault(other_jid, Context(self.host, self.account, other_jid)) | |
| 187 return context | |
| 1055 | 188 |
| 189 def getContextForUser(self, other): | |
| 1095 | 190 log.debug(u"getContextForUser [%s]" % other) |
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191 if not other.resource: |
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massive (preventive) addition of 'u' (unicode) before the strings passed to logging functions
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192 log.warning(u"getContextForUser called with a bare jid: %s" % other.full()) |
| 1055 | 193 return self.startContext(other) |
| 194 | |
| 195 | |
| 196 class OTR(object): | |
| 197 | |
| 198 def __init__(self, host): | |
| 1095 | 199 log.info(_(u"OTR plugin initialization")) |
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plugin OTR: temporary potr monkey patch to work around a unicode bug, to be removed as soon as a potr fixed version is released (potr maintainer should do it soon)
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200 self._fixPotr() # FIXME: to be removed when potr will be fixed |
| 1055 | 201 self.host = host |
| 202 self.context_managers = {} | |
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plugin OTR: add bridge method skipOTR to desactivate OTR handling for a given profile
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203 self.skipped_profiles = set() |
| 1055 | 204 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=100000) |
| 205 host.trigger.add("sendMessage", self.sendMessageTrigger, priority=100000) | |
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plugin OTR: add bridge method skipOTR to desactivate OTR handling for a given profile
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206 host.bridge.addMethod("skipOTR", ".plugin", in_sign='s', out_sign='', method=self._skipOTR) |
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plugin OTR: added start/refresh and end session menus
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207 host.importMenu((MAIN_MENU, D_("Start/Refresh")), self._startRefresh, security_limit=0, help_string=D_("Start or refresh an OTR session"), type_=C.MENU_SINGLE) |
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208 host.importMenu((MAIN_MENU, D_("End session")), self._endSession, security_limit=0, help_string=D_("Finish an OTR session"), type_=C.MENU_SINGLE) |
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7fcafc3206b1
plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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209 host.importMenu((MAIN_MENU, D_("Authenticate")), self._authenticate, security_limit=0, help_string=D_("Authenticate user/see your fingerprint"), type_=C.MENU_SINGLE) |
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2481fa96ac1c
plugin OTR: added ability to drop private key
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210 host.importMenu((MAIN_MENU, D_("Drop private key")), self._dropPrivKey, security_limit=0, type_=C.MENU_SINGLE) |
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211 host.trigger.add("presenceReceived", self._presenceReceivedTrigger) |
| 1055 | 212 |
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213 def _fixPotr(self): |
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214 # FIXME: potr fix for bad unicode handling |
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215 # this method monkeypatch it, must be removed when potr |
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216 # is fixed |
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217 |
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218 def getDefaultQueryMessage(self, policy): |
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219 defaultQuery = '?OTRv{versions}?\nI would like to start ' \ |
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220 'an Off-the-Record private conversation. However, you ' \ |
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221 'do not have a plugin to support that.\nSee '\ |
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222 'https://otr.cypherpunks.ca/ for more information.' |
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223 v = '2' if policy('ALLOW_V2') else '' |
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224 msg = defaultQuery.format(versions=v) |
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225 return msg.encode('ascii') |
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226 |
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227 potr.context.Account.getDefaultQueryMessage = getDefaultQueryMessage |
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228 |
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229 def _skipOTR(self, profile): |
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230 """Tell the backend to not handle OTR for this profile. |
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231 |
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232 @param profile (str): %(doc_profile)s |
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233 """ |
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234 self.skipped_profiles.add(profile) |
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235 |
| 1095 | 236 @defer.inlineCallbacks |
| 1055 | 237 def profileConnected(self, profile): |
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238 if profile in self.skipped_profiles: |
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239 return |
| 1055 | 240 client = self.host.getClient(profile) |
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241 ctxMng = self.context_managers[profile] = ContextManager(self.host, client) |
| 1095 | 242 client.otr_data = persistent.PersistentBinaryDict(NS_OTR, profile) |
| 243 yield client.otr_data.load() | |
| 244 encrypted_priv_key = client.otr_data.get(PRIVATE_KEY, None) | |
| 245 if encrypted_priv_key is not None: | |
| 246 priv_key = yield self.host.memory.decryptValue(encrypted_priv_key, profile) | |
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247 ctxMng.account.privkey = potr.crypt.PK.parsePrivateKey(priv_key.decode('hex'))[0] |
| 1095 | 248 else: |
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249 ctxMng.account.privkey = None |
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250 ctxMng.account.loadTrusts() |
| 1055 | 251 |
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252 def profileDisconnected(self, profile): |
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253 try: |
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254 for context in self.context_managers[profile].contexts.values(): |
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255 context.disconnect() |
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256 del self.context_managers[profile] |
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257 except KeyError: |
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258 pass |
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259 try: |
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260 self.skipped_profiles.remove(profile) |
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261 except KeyError: |
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262 pass |
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263 |
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264 def _startRefresh(self, menu_data, profile): |
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265 """Start or refresh an OTR session |
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266 |
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267 @param menu_data: %(menu_data)s |
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268 @param profile: %(doc_profile)s |
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269 """ |
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270 try: |
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271 to_jid = jid.JID(menu_data['jid']) |
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272 if not to_jid.resource: |
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273 to_jid.resource = self.host.memory.getMainResource(to_jid, profile) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
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274 except KeyError: |
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275 log.error(_("jid key is not present !")) |
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276 return defer.fail(exceptions.DataError) |
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277 otrctx = self.context_managers[profile].getContextForUser(to_jid) |
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278 query = otrctx.sendMessage(0, '?OTRv?') |
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279 otrctx.inject(query) |
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280 return {} |
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281 |
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282 def _endSession(self, menu_data, profile): |
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283 """End an OTR session |
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284 |
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285 @param menu_data: %(menu_data)s |
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286 @param profile: %(doc_profile)s |
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287 """ |
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288 try: |
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289 to_jid = jid.JID(menu_data['jid']) |
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290 if not to_jid.resource: |
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291 to_jid.resource = self.host.memory.getMainResource(to_jid, profile) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
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292 except KeyError: |
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293 log.error(_("jid key is not present !")) |
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294 return defer.fail(exceptions.DataError) |
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295 otrctx = self.context_managers[profile].getContextForUser(to_jid) |
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296 otrctx.disconnect() |
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297 return {} |
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298 |
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299 def _authenticate(self, menu_data, profile): |
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300 """Authenticate other user and see our own fingerprint |
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301 |
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302 @param menu_data: %(menu_data)s |
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303 @param profile: %(doc_profile)s |
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304 """ |
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305 try: |
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306 to_jid = jid.JID(menu_data['jid']) |
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307 if not to_jid.resource: |
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308 to_jid.resource = self.host.memory.getMainResource(to_jid, profile) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
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309 except KeyError: |
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310 log.error(_("jid key is not present !")) |
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311 return defer.fail(exceptions.DataError) |
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312 ctxMng = self.context_managers[profile] |
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313 otrctx = ctxMng.getContextForUser(to_jid) |
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314 priv_key = ctxMng.account.privkey |
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315 |
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316 if priv_key is None: |
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317 # we have no private key yet |
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318 dialog = xml_tools.XMLUI(C.XMLUI_DIALOG, |
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319 dialog_opt = {C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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320 C.XMLUI_DATA_MESS: _("You have no private key yet, start an OTR conversation to have one"), |
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321 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_WARNING |
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322 }, |
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323 title = _("No private key"), |
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324 ) |
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325 return {'xmlui': dialog.toXml()} |
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326 |
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327 other_fingerprint = otrctx.getCurrentKey() |
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328 |
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329 if other_fingerprint is None: |
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330 # we have a private key, but not the fingerprint of our correspondent |
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331 dialog = xml_tools.XMLUI(C.XMLUI_DIALOG, |
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332 dialog_opt = {C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
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333 C.XMLUI_DATA_MESS: _("Your fingerprint is:\n{fingerprint}\n\nStart an OTR conversation to have your correspondent one.").format(fingerprint=priv_key), |
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334 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_INFO |
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335 }, |
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336 title = _("Fingerprint"), |
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337 ) |
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338 return {'xmlui': dialog.toXml()} |
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339 |
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340 def setTrust(raw_data, profile): |
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341 # This method is called when authentication form is submited |
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342 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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343 if data['match'] == 'yes': |
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344 otrctx.setCurrentTrust('verified') |
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345 note_msg = _("Your correspondent {correspondent} is now TRUSTED") |
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346 else: |
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347 otrctx.setCurrentTrust('') |
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348 note_msg = _("Your correspondent {correspondent} is now UNTRUSTED") |
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349 note = xml_tools.XMLUI(C.XMLUI_DIALOG, dialog_opt = { |
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350 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_NOTE, |
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351 C.XMLUI_DATA_MESS: note_msg.format(correspondent=otrctx.peer)} |
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352 ) |
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353 return {'xmlui': note.toXml()} |
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354 |
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355 submit_id = self.host.registerCallback(setTrust, with_data=True, one_shot=True) |
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356 trusted = bool(otrctx.getCurrentTrust()) |
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357 |
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358 xmlui = xml_tools.XMLUI(C.XMLUI_FORM, title=_('Authentication (%s)') % to_jid.full(), submit_id=submit_id) |
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359 xmlui.addText(_(AUTH_TXT)) |
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360 xmlui.addDivider() |
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361 xmlui.addText(_("Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key)) |
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362 xmlui.addText(_("Your correspondent fingerprint should be:\n{fingerprint}").format(fingerprint=other_fingerprint)) |
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363 xmlui.addDivider('blank') |
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364 xmlui.changeContainer('pairs') |
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365 xmlui.addLabel(_('Is your correspondent fingerprint the same as here ?')) |
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366 xmlui.addList("match", [('yes', _('yes')),('no', _('no'))], ['yes' if trusted else 'no']) |
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367 return {'xmlui': xmlui.toXml()} |
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368 |
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369 def _dropPrivKey(self, menu_data, profile): |
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370 """Drop our private Key |
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371 |
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372 @param menu_data: %(menu_data)s |
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373 @param profile: %(doc_profile)s |
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374 """ |
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375 try: |
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376 to_jid = jid.JID(menu_data['jid']) |
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377 if not to_jid.resource: |
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378 to_jid.resource = self.host.memory.getMainResource(to_jid, profile) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
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379 except KeyError: |
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380 log.error(_("jid key is not present !")) |
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381 return defer.fail(exceptions.DataError) |
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382 |
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383 ctxMng = self.context_managers[profile] |
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384 if ctxMng.account.privkey is None: |
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385 return {'xmlui': xml_tools.note(_("You don't have a private key yet !")).toXml()} |
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386 |
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387 def dropKey(data, profile): |
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388 if C.bool(data['answer']): |
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389 # we end all sessions |
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390 for context in ctxMng.contexts.values(): |
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391 context.disconnect() |
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392 ctxMng.account.privkey = None |
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393 ctxMng.account.getPrivkey() # as account.privkey is None, getPrivkey will generate a new key, and save it |
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394 return {'xmlui': xml_tools.note(_("Your private key has been dropped")).toXml()} |
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395 return {} |
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396 |
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397 submit_id = self.host.registerCallback(dropKey, with_data=True, one_shot=True) |
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398 |
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399 confirm = xml_tools.XMLUI(C.XMLUI_DIALOG, title=_('Confirm private key drop'), dialog_opt = {'type': C.XMLUI_DIALOG_CONFIRM, 'message': _(DROP_TXT)}, submit_id = submit_id) |
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400 return {'xmlui': confirm.toXml()} |
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401 |
| 1055 | 402 def _receivedTreatment(self, data, profile): |
| 403 from_jid = jid.JID(data['from']) | |
| 1095 | 404 log.debug(u"_receivedTreatment [from_jid = %s]" % from_jid) |
| 1055 | 405 otrctx = self.context_managers[profile].getContextForUser(from_jid) |
| 1095 | 406 encrypted = True |
| 1055 | 407 |
| 408 try: | |
| 1095 | 409 res = otrctx.receiveMessage(data['body'].encode('utf-8')) |
| 1055 | 410 except potr.context.UnencryptedMessage: |
| 1095 | 411 if otrctx.state == potr.context.STATE_ENCRYPTED: |
| 412 log.warning(u"Received unencrypted message in an encrypted context (from %(jid)s)" % {'jid': from_jid.full()}) | |
| 413 client = self.host.getClient(profile) | |
| 414 self.host.bridge.newMessage(from_jid.full(), | |
| 415 _(u"WARNING: received unencrypted data in a supposedly encrypted context"), | |
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416 mess_type=C.MESS_TYPE_INFO, |
| 1095 | 417 to_jid=client.jid.full(), |
| 418 extra={}, | |
| 419 profile=client.profile) | |
| 1055 | 420 encrypted = False |
| 421 | |
| 1095 | 422 if not encrypted: |
| 1055 | 423 return data |
| 424 else: | |
| 425 if res[0] != None: | |
| 426 # decrypted messages handling. | |
| 427 # receiveMessage() will return a tuple, the first part of which will be the decrypted message | |
| 428 data['body'] = res[0].decode('utf-8') | |
| 429 raise failure.Failure(exceptions.SkipHistory()) # we send the decrypted message to frontends, but we don't want it in history | |
| 430 else: | |
| 431 raise failure.Failure(exceptions.CancelError()) # no message at all (no history, no signal) | |
| 432 | |
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433 def _receivedTreatmentForSkippedProfiles(self, data, profile): |
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434 """This profile must be skipped because the frontend manages OTR itself, |
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435 but we still need to check if the message must be stored in history or not""" |
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436 body = data['body'].encode('utf-8') |
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437 if body.startswith(potr.proto.OTRTAG): |
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438 raise failure.Failure(exceptions.SkipHistory()) |
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439 return data |
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440 |
| 1055 | 441 def MessageReceivedTrigger(self, message, post_treat, profile): |
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442 if profile in self.skipped_profiles: |
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443 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles, profile) |
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444 else: |
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445 post_treat.addCallback(self._receivedTreatment, profile) |
| 1055 | 446 return True |
| 447 | |
| 448 def sendMessageTrigger(self, mess_data, pre_xml_treatments, post_xml_treatments, profile): | |
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449 if profile in self.skipped_profiles: |
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450 return True |
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451 to_jid = copy.copy(mess_data['to']) |
| 1055 | 452 if mess_data['type'] != 'groupchat' and not to_jid.resource: |
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453 to_jid.resource = self.host.memory.getMainResource(to_jid, profile) # FIXME: it's dirty, but frontends don't manage resources correctly now, refactoring is planed |
| 1055 | 454 otrctx = self.context_managers[profile].getContextForUser(to_jid) |
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455 if mess_data['type'] != 'groupchat' and otrctx.state != potr.context.STATE_PLAINTEXT: |
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456 if otrctx.state == potr.context.STATE_ENCRYPTED: |
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457 log.debug(u"encrypting message") |
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458 otrctx.sendMessage(0, mess_data['message'].encode('utf-8')) |
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459 client = self.host.getClient(profile) |
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460 self.host.sendMessageToBridge(mess_data, client) |
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461 else: |
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462 feedback = D_("Your message was not sent because your correspondent closed the encrypted conversation on his/her side. Either close your own side, or refresh the session.") |
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463 client = self.host.getClient(profile) |
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464 self.host.bridge.newMessage(to_jid.full(), |
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465 feedback, |
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466 mess_type=C.MESS_TYPE_INFO, |
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467 to_jid=client.jid.full(), |
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468 extra={}, |
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469 profile=client.profile) |
| 1055 | 470 return False |
| 471 else: | |
| 1095 | 472 log.debug(u"sending message unencrypted") |
| 1055 | 473 return True |
| 474 | |
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475 def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile): |
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476 if show != C.PRESENCE_UNAVAILABLE: |
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477 return True |
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478 if not entity.resource: |
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479 try: |
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480 entity.resource = self.host.memory.getMainResource(entity, profile) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
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481 except exceptions.UnknownEntityError: |
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482 return True # entity was not connected |
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483 if entity in self.context_managers[profile].contexts: |
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484 otrctx = self.context_managers[profile].getContextForUser(entity) |
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485 otrctx.disconnect() |
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486 return True |