97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
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# 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-0084: User Avatar
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import logging
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import base64
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import binascii
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import nbxmpp
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from gajim.common import app
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from gajim.common.exceptions import StanzaMalformed
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log = logging.getLogger('gajim.c.m.user_avatar')
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class UserAvatar:
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def __init__(self, con):
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self._con = con
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self._account = con.name
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self.handlers = []
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def get_pubsub_avatar(self, jid, item_id):
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log.info('Request: %s %s', jid, item_id)
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self._con.get_module('PubSub').send_pb_retrieve(
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jid, 'urn:xmpp:avatar:data', item_id, self._avatar_received)
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def _validate_avatar_node(self, stanza):
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jid = stanza.getFrom()
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if jid is None:
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jid = self._con.get_own_jid().getStripped()
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else:
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jid = jid.getStripped()
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if nbxmpp.isErrorNode(stanza):
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raise StanzaMalformed(stanza.getErrorMsg())
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pubsub_node = stanza.getTag('pubsub')
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if pubsub_node is None:
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raise StanzaMalformed('No pubsub node', stanza)
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items_node = pubsub_node.getTag('items')
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if items_node is None:
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raise StanzaMalformed('No items node', stanza)
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if items_node.getAttr('node') != 'urn:xmpp:avatar:data':
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raise StanzaMalformed('Wrong namespace', stanza)
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item = items_node.getTag('item')
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if item is None:
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raise StanzaMalformed('No item node', stanza)
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sha = item.getAttr('id')
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data_tag = item.getTag('data', namespace='urn:xmpp:avatar:data')
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if sha is None or data_tag is None:
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raise StanzaMalformed('No id attr or data node found', stanza)
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data = data_tag.getData()
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if data is None:
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raise StanzaMalformed('Data node empty', stanza)
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data = base64.b64decode(data.encode('utf-8'))
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return jid, sha, data
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def _avatar_received(self, conn, stanza):
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try:
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jid, sha, data = self._validate_avatar_node(stanza)
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except (StanzaMalformed, binascii.Error) as error:
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log.warning('Error: %s %s', stanza.getFrom(), error)
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return
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log.info('Received: %s %s', jid, sha)
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app.interface.save_avatar(data)
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if self._con.get_own_jid().bareMatch(jid):
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app.config.set_per('accounts', self._account, 'avatar_sha', sha)
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else:
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own_jid = self._con.get_own_jid().getStripped()
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app.logger.set_avatar_sha(own_jid, jid, sha)
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app.contacts.set_avatar(self._account, jid, sha)
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app.interface.update_avatar(self._account, jid)
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