1 # -*- coding: utf-8 -*-
2 # SPDX-FileCopyrightText: 2014, 2020, 2023 kaliko <kaliko@azylum.org>
3 # SPDX-FileCopyrightText: 2007-2012 Thomas Perl <thp.io/about>
4 # SPDX-License-Identifier: GPL-3.0-or-later
6 from hashlib import sha256
8 from slixmpp.exceptions import XMPPError
9 from slixmpp.xmlstream import tostring
11 from .plugin import Plugin
17 pubsub_server = 'example.org'
18 node = 'muc_bans_sha256'
20 def __init__(self, bot):
21 Plugin.__init__(self, bot)
22 bot.register_plugin('xep_0059') # Mediated Information eXchange (MIX)
23 bot.register_plugin('xep_0060') # Publish-Subscribe
25 ('session_start', self._subscribe),
26 ('pubsub_retract', self._retract),
27 ('pubsub_publish', self._publish)
35 self.bot.unregister_bot_plugin(self)
37 async def _subscribe(self, *args, **kwargs):
39 nodes = await self.bot['xep_0060'].get_nodes(self.pubsub_server)
40 nodes_av = [_.get('node') for _ in nodes['disco_items']]
41 self.log.debug(f'nodes available: {nodes_av}')
42 if self.node not in nodes_av:
43 self.log.error(f'{self.node} node not available on {self.pubsub_server}')
45 iq = await self.bot['xep_0060'].subscribe(self.pubsub_server, self.node)
46 subscription = iq['pubsub']['subscription']
47 self.log.info('Subscribed %s to node %s', subscription['jid'], subscription['node'])
48 except XMPPError as error:
49 self.log.error('Could not subscribe %s to node %s: %s',
50 self.bot.boundjid.bare, self.node, error.format())
53 self.blocklist = await self.bot['xep_0060'].get_items(self.pubsub_server, self.node)
54 message = f'Got {len(self.blocklist["pubsub"]["items"])} items in block list'
55 self.log.info(message)
56 # Add got_online handler once the blocklist is set
57 self.bot.add_event_handler(f'muc::{self.bot.room}::got_online', self.got_online)
59 async def _create(self):
60 """Try to create node"""
62 await self.bot['xep_0060'].create_node(self.pubsub_server, self.node)
63 self.log.info('Created node %s', self.node)
64 except XMPPError as err:
65 self.log.error('Could not create node %s: %s', self.node, err.format())
66 raise XMPPError(f'Could not create node {self.node}') from err
68 def _retract(self, msg):
69 """Handler receiving a retract item event."""
70 self.log.debug('Retracted item %s from %s' % (
71 msg['pubsub_event']['items']['retract']['id'],
72 msg['pubsub_event']['items']['node']))
74 async def _publish(self, msg):
75 """Handler receiving a publish item event."""
76 self.log.debug('Published item %s to %s:' % (
77 msg['pubsub_event']['items']['item']['id'],
78 msg['pubsub_event']['items']['node']))
79 data = msg['pubsub_event']['items']['item']['payload']
81 self.log.debug(tostring(data))
83 self.log.debug('No item content')
84 self.blocklist = await self.bot['xep_0060'].get_items(self.pubsub_server, self.node)
86 async def got_online(self, pres):
87 """Handler method for new MUC participants"""
88 bjid = pres['muc']['jid'].bare
89 bjid_hash = sha256(bjid.encode('utf-8')).hexdigest()
90 if bjid_hash in [_['id'] for _ in self.blocklist['pubsub']['items']]:
91 self.log.debug(f'About to ban {bjid}')
92 await self.ban(bjid, reason='rtbl <timestamp>')
95 # vim: ai ts=4 sw=4 sts=4 expandtab