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64 lines
2.4 KiB
64 lines
2.4 KiB
# Copyright (C) 2019 Philipp Hörist <philipp AT hoerist.com>
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# Copyright (C) 2019 Pavel R. <pd at narayana dot im>
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# This file is part of Gajim OTR Plugin.
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#
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# Gajim OTR Plugin is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published
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# by the Free Software Foundation; version 3 only.
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#
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# This software is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You can always obtain full license text at <http://www.gnu.org/licenses/>.
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# TODO: OTR state notifications
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# TODO: Fingerprints authentication GUI
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# TODO: SMP authentication GUI
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ERROR = None
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import logging
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from gajim.common import app
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from gajim.plugins import GajimPlugin
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try: from otrplugin.otr import OTR
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except: ERROR = 'Error importing python3-potr module. Make sure it is installed.'
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log = logging.getLogger('gajim.p.otr')
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class OTRPlugin(GajimPlugin):
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def init(self):
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self.encryption_name = OTR.ENCRYPTION_NAME
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self.description = 'Provides Off-the-Record encryption'
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self.activatable = not ERROR
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self.available_text = ERROR
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self.sessions = {}
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self.session = lambda account: self.sessions.setdefault(account, OTR(account, logger = log))
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self.gui_extension_points = {
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'encrypt' + self.encryption_name: (self._encrypt_message, None),
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'decrypt': (self._decrypt_message, None),
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}
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@staticmethod
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def activate_encryption(ctl):
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return True
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@staticmethod
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def encrypt_file(file, account, callback):
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callback(file)
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def _encrypt_message(self, con, event, callback):
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if not event.message or event.type_ != 'chat': return # drop empty or non-chat messages
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log.debug('encrypting message: %s' % event)
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otr = self.session(event.account)
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otr._encrypt(event, callback)
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def _decrypt_message(self, con, event, callback):
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if event.name == 'mam-message-received': event.msgtxt = '' # drop mam messages because we cannot decrypt it post-factum
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if not event.msgtxt or not event.msgtxt.startswith("?OTR"): return # drop messages without OTR tag
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log.debug('received otr message: %s' % event)
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otr = self.session(event.account)
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otr._decrypt(event, callback)
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