150 lines
4.8 KiB
Python
150 lines
4.8 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-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.const import PEPEventType
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from gajim.common.exceptions import StanzaMalformed
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from gajim.common.modules.pep import AbstractPEPModule, AbstractPEPData
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log = logging.getLogger('gajim.c.m.user_avatar')
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class UserAvatarData(AbstractPEPData):
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type_ = PEPEventType.AVATAR
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class UserAvatar(AbstractPEPModule):
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name = 'user-avatar'
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namespace = 'urn:xmpp:avatar:metadata'
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pep_class = UserAvatarData
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store_publish = False
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_log = log
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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, _con, 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 Avatar: %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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def _extract_info(self, item):
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metadata = item.getTag('metadata', namespace=self.namespace)
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if metadata is None:
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raise StanzaMalformed('No metadata node')
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info = metadata.getTags('info', one=True)
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if not info:
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return None
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avatar = info.getAttrs()
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return avatar or None
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def _notification_received(self, jid, user_pep):
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avatar = user_pep.data
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own_jid = self._con.get_own_jid()
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if avatar is None:
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# Remove avatar
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log.info('Remove: %s', jid)
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app.contacts.set_avatar(self._account, str(jid), None)
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app.logger.set_avatar_sha(own_jid.getStripped(), str(jid), None)
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app.interface.update_avatar(self._account, str(jid))
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else:
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if own_jid.bareMatch(jid):
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sha = app.config.get_per(
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'accounts', self._account, 'avatar_sha')
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else:
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sha = app.contacts.get_avatar_sha(self._account, str(jid))
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if sha == avatar['id']:
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log.info('Avatar already known: %s %s',
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jid, avatar['id'])
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return
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self.get_pubsub_avatar(jid, avatar['id'])
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def _build_node(self, data):
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raise NotImplementedError
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def send(self, data):
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# Not implemented yet
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return
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def get_instance(*args, **kwargs):
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return UserAvatar(*args, **kwargs), 'UserAvatar'
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