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# This file is part of Gajim.
#
# Gajim is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; version 3 only.
#
# Gajim is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
# XEP-0258: Security Labels in XMPP
from __future__ import annotations
from typing import Generator
from typing import Optional
from nbxmpp.errors import is_error
from nbxmpp.modules.security_labels import Catalog
from nbxmpp.namespaces import Namespace
from nbxmpp.structs import DiscoInfo
from gajim.common import app
from gajim.common import types
from gajim.common.events import SecCatalogReceived
from gajim.common.modules.base import BaseModule
from gajim.common.modules.util import as_task
class SecLabels(BaseModule):
_nbxmpp_extends = 'SecurityLabels'
_nbxmpp_methods = [
'request_catalog',
]
def __init__(self, con: types.Client) -> None:
BaseModule.__init__(self, con)
self._catalogs: dict[str, Catalog] = {}
self.supported = False
def pass_disco(self, info: DiscoInfo) -> None:
if Namespace.SECLABEL not in info.features:
return
self.supported = True
self._log.info('Discovered security labels: %s', info.jid)
@as_task
def request_catalog(self, jid: str) -> Generator[Catalog, None, None]:
_task = yield # noqa: F841
catalog = yield self._nbxmpp('SecurityLabels').request_catalog(jid)
if is_error(catalog):
self._log.info(catalog)
return
self._catalogs[jid] = catalog
self._log.info('Received catalog: %s', jid)
app.ged.raise_event(SecCatalogReceived(account=self._account,
jid=jid,
catalog=catalog))
def get_catalog(self, jid: str) -> Optional[Catalog]:
if not self.supported:
return None
catalog = self._catalogs.get(jid)
if catalog is None:
self.request_catalog(jid)
return None
return catalog
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