gajim-plural/gajim/common/modules/blocking.py

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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-0191: Blocking Command
import logging
import nbxmpp
from gajim.common import app
from gajim.common.nec import NetworkIncomingEvent
log = logging.getLogger('gajim.c.m.blocking')
class Blocking:
def __init__(self, con):
self._con = con
self._account = con.name
self.blocked = []
self.handlers = [
('iq', self._blocking_push_received, 'set', nbxmpp.NS_BLOCKING)
]
self.supported = False
def pass_disco(self, from_, identities, features, data, node):
if nbxmpp.NS_BLOCKING not in features:
return
self.supported = True
log.info('Discovered blocking: %s', from_)
def get_blocking_list(self):
if not self.supported:
return
iq = nbxmpp.Iq('get', nbxmpp.NS_BLOCKING)
iq.setQuery('blocklist')
log.info('Request list')
self._con.connection.SendAndCallForResponse(
iq, self._blocking_list_received)
def _blocking_list_received(self, stanza):
if not nbxmpp.isResultNode(stanza):
log.info('Error: %s', stanza.getError())
return
self.blocked = []
blocklist = stanza.getTag('blocklist', namespace=nbxmpp.NS_BLOCKING)
if blocklist is None:
log.error('No blocklist node')
return
for item in blocklist.getTags('item'):
self.blocked.append(item.getAttr('jid'))
log.info('Received list: %s', self.blocked)
app.nec.push_incoming_event(
BlockingEvent(None, conn=self._con, changed=self.blocked))
def _blocking_push_received(self, conn, stanza):
reply = stanza.buildReply('result')
childs = reply.getChildren()
for child in childs:
reply.delChild(child)
self._con.connection.send(reply)
changed_list = []
unblock = stanza.getTag('unblock', namespace=nbxmpp.NS_BLOCKING)
if unblock is not None:
items = unblock.getTags('item')
if not items:
# Unblock all
changed_list = list(self.blocked)
self.blocked = []
for jid in self.blocked:
self._presence_probe(jid)
log.info('Unblock all Push')
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raise nbxmpp.NodeProcessed
for item in items:
# Unblock some contacts
jid = item.getAttr('jid')
changed_list.append(jid)
if jid not in self.blocked:
continue
self.blocked.remove(jid)
self._presence_probe(jid)
log.info('Unblock Push: %s', jid)
block = stanza.getTag('block', namespace=nbxmpp.NS_BLOCKING)
if block is not None:
for item in block.getTags('item'):
jid = item.getAttr('jid')
if jid in self.blocked:
continue
changed_list.append(jid)
self.blocked.append(jid)
self._set_contact_offline(jid)
log.info('Block Push: %s', jid)
app.nec.push_incoming_event(
BlockingEvent(None, conn=self._con, changed=changed_list))
raise nbxmpp.NodeProcessed
def _set_contact_offline(self, jid):
contact_list = app.contacts.get_contacts(self._account, jid)
for contact in contact_list:
contact.show = 'offline'
def _presence_probe(self, jid):
log.info('Presence probe: %s', jid)
# Send a presence Probe to get the current Status
probe = nbxmpp.Presence(jid, 'probe', frm=self._con.get_own_jid())
self._con.connection.send(probe)
def block(self, contact_list):
if not self.supported:
return
iq = nbxmpp.Iq('set', nbxmpp.NS_BLOCKING)
query = iq.setQuery(name='block')
for contact in contact_list:
query.addChild(name='item', attrs={'jid': contact.jid})
log.info('Block: %s', contact.jid)
self._con.connection.SendAndCallForResponse(
iq, self._default_result_handler, {})
def unblock(self, contact_list):
if not self.supported:
return
iq = nbxmpp.Iq('set', nbxmpp.NS_BLOCKING)
query = iq.setQuery(name='unblock')
for contact in contact_list:
query.addChild(name='item', attrs={'jid': contact.jid})
log.info('Unblock: %s', contact.jid)
self._con.connection.SendAndCallForResponse(
iq, self._default_result_handler, {})
def _default_result_handler(self, conn, stanza):
if not nbxmpp.isResultNode(stanza):
log.warning('Operation failed: %s', stanza.getError())
class BlockingEvent(NetworkIncomingEvent):
name = 'blocking'
base_network_events = []
def get_instance(*args, **kwargs):
return Blocking(*args, **kwargs), 'Blocking'