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# Copyright (C) 2019 Philipp Hörist <philipp AT hoerist.com>
#
# This file is part of nbxmpp.
#
# This program 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; either version 3
# of the License, or (at your option) any later version.
#
# This program 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 this program; If not, see <http://www.gnu.org/licenses/>.
import logging
from nbxmpp.protocol import NS_VERSION
from nbxmpp.protocol import Iq
from nbxmpp.protocol import isResultNode
from nbxmpp.protocol import ErrorNode
from nbxmpp.protocol import NodeProcessed
from nbxmpp.protocol import ERR_SERVICE_UNAVAILABLE
from nbxmpp.structs import SoftwareVersionResult
from nbxmpp.structs import StanzaHandler
from nbxmpp.util import call_on_response
from nbxmpp.util import callback
from nbxmpp.util import raise_error
log = logging.getLogger('nbxmpp.m.software_version')
class SoftwareVersion:
def __init__(self, client):
self._client = client
self.handlers = [
StanzaHandler(name='iq',
callback=self._answer_request,
typ='get',
ns=NS_VERSION),
]
self._name = None
self._version = None
self._os = None
self._enabled = False
def disable(self):
self._enabled = False
@call_on_response('_software_version_received')
def request_software_version(self, jid):
log.info('Request software version for %s', jid)
return Iq(typ='get', to=jid, queryNS=NS_VERSION)
@callback
def _software_version_received(self, stanza):
if not isResultNode(stanza):
return raise_error(log.info, stanza)
try:
return SoftwareVersionResult(*self._parse_info(stanza))
except Exception as error:
log.warning(error)
return raise_error(log.warning, stanza, 'stanza-malformed')
@staticmethod
def _parse_info(stanza):
name = stanza.getQueryChild('name').getData()
version = stanza.getQueryChild('version').getData()
os_info = stanza.getQueryChild('os')
if os_info is not None:
os_info = os_info.getData()
return name, version, os_info
def set_software_version(self, name, version, os=None):
self._name, self._version, self._os = name, version, os
self._enabled = True
def _answer_request(self, _con, stanza, _properties):
log.info('Request received from %s', stanza.getFrom())
if (not self._enabled or
self._name is None or
self._version is None):
iq = stanza.buildReply('error')
iq.addChild(node=ErrorNode(ERR_SERVICE_UNAVAILABLE))
log.info('Send service-unavailable')
else:
iq = stanza.buildReply('result')
query = iq.getQuery()
query.setTagData('name', self._name)
query.setTagData('version', self._version)
if self._os is not None:
query.setTagData('os', self._os)
log.info('Send software version: %s %s %s',
self._name, self._version, self._os)
self._client.send_stanza(iq)
raise NodeProcessed
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