78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
# This file is part of Gajim.
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#
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# Gajim 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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# Gajim 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 should have received a copy of the GNU General Public License
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# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
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# XEP-0280: Message Carbons
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import logging
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import nbxmpp
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log = logging.getLogger('gajim.c.m.carbons')
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def parse_carbon(con, stanza):
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carbon = stanza.getTag(
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'received', namespace=nbxmpp.NS_CARBONS, protocol=True)
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if carbon is None:
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carbon = stanza.getTag(
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'sent', namespace=nbxmpp.NS_CARBONS, protocol=True)
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if carbon is None:
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return stanza, False, False
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# Carbon must be from our bare jid
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own_jid = con.get_own_jid()
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if not stanza.getFrom().bareMatch(own_jid):
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log.warning('Ignore message because from is invalid %s',
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stanza.getFrom())
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raise nbxmpp.NodeProcessed
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forwarded = carbon.getTag('forwarded',
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namespace=nbxmpp.NS_FORWARD,
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protocol=True)
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message = forwarded.getTag('message', protocol=True)
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type_ = carbon.getName()
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to = message.getTo()
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frm = message.getFrom()
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log.info('Received type: %s, from: %s, to: %s', type_, to, frm)
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if type_ == 'received':
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sent = False
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if message.getFrom().bareMatch(own_jid):
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# Drop 'received' Carbons from ourself, we already
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# got the message with the 'sent' Carbon or via the
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# message itself
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log.info('Drop "received"-Carbon from ourself: %s')
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raise nbxmpp.NodeProcessed
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if message.getTag('x', namespace=nbxmpp.NS_MUC_USER) is not None:
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# A MUC broadcasts messages sent to us to all resources
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# there is no need to process carbons for these messages
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log.info('Drop MUC-PM "received"-Carbon')
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raise nbxmpp.NodeProcessed
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elif type_ == 'sent':
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if frm is None:
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frm = own_jid.getStripped()
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message.setTo(frm)
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if to is None:
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to = own_jid.getStripped()
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message.setFrom(to)
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sent = True
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else:
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log.warning('Ignore invalid carbon: %s', stanza)
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raise nbxmpp.NodeProcessed
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return message, sent, True
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