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30f7a77d18
1c0ea24acd "relay_clientbot: normalize sender names to the senders' home networks"
In the future we hope to remove nick restrictions in Clientbot entirely, and just use freeform nicks for virtual users.
267 lines
13 KiB
Python
267 lines
13 KiB
Python
# relay_clientbot.py: Clientbot extensions for Relay
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import string
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import time
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from pylinkirc import utils, conf, world
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from pylinkirc.log import log
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# Clientbot default styles:
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# These use template strings as documented @ https://docs.python.org/3/library/string.html#template-strings
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default_styles = {'MESSAGE': '\x02[$netname]\x02 <$mode_prefix$colored_sender> $text',
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'KICK': '\x02[$netname]\x02 - $colored_sender$sender_identhost has kicked $target_nick from $channel ($text)',
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'PART': '\x02[$netname]\x02 - $colored_sender$sender_identhost has left $channel ($text)',
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'JOIN': '\x02[$netname]\x02 - $colored_sender$sender_identhost has joined $channel',
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'NICK': '\x02[$netname]\x02 - $colored_sender$sender_identhost is now known as $newnick',
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'QUIT': '\x02[$netname]\x02 - $colored_sender$sender_identhost has quit ($text)',
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'ACTION': '\x02[$netname]\x02 * $mode_prefix$colored_sender $text',
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'NOTICE': '\x02[$netname]\x02 - Notice from $mode_prefix$colored_sender: $text',
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'SQUIT': '\x02[$netname]\x02 - Netsplit lost users: $colored_nicks',
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'SJOIN': '\x02[$netname]\x02 - Netjoin gained users: $colored_nicks',
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'MODE': '\x02[$netname]\x02 - $colored_sender$sender_identhost sets mode $modes on $channel',
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'PM': 'PM from $sender on $netname: $text',
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'PNOTICE': '<$sender> $text',
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}
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def color_text(s):
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"""
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Returns a colorized version of the given text based on a simple hash algorithm.
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"""
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if not s:
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return s
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colors = ('03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '15')
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hash_output = hash(s.encode())
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num = hash_output % len(colors)
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return "\x03%s%s\x03" % (colors[num], s)
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def cb_relay_core(irc, source, command, args):
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"""
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This function takes Clientbot events and formats them as text to the target channel / user.
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"""
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real_command = command.split('_')[-1]
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relay = world.plugins.get('relay')
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private = False
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if irc.pseudoclient and relay:
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try:
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sourcename = irc.get_friendly_name(source)
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except KeyError: # User has left due to /quit
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sourcename = args['userdata'].nick
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relay_conf = conf.conf.get('relay') or {}
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# Be less floody on startup: don't relay non-PRIVMSGs for the first X seconds after connect.
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startup_delay = relay_conf.get('clientbot_startup_delay', 20)
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target = args.get('target')
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if isinstance(target, str):
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# Remove STATUSMSG prefixes (e.g. @#channel) before checking whether target is a channel
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target = target.lstrip(''.join(irc.prefixmodes.values()))
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# Special case for CTCPs.
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if real_command == 'MESSAGE':
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# CTCP action, format accordingly
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if (not args.get('is_notice')) and args['text'].startswith('\x01ACTION ') and args['text'].endswith('\x01'):
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args['text'] = args['text'][8:-1]
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real_command = 'ACTION'
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elif not irc.is_channel(target):
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# Target is a user; handle this accordingly.
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if relay_conf.get('allow_clientbot_pms'):
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real_command = 'PNOTICE' if args.get('is_notice') else 'PM'
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private = True
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# Other CTCPs are ignored
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elif args['text'].startswith('\x01'):
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return
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elif args.get('is_notice'): # Different syntax for notices
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real_command = 'NOTICE'
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elif (time.time() - irc.start_ts) < startup_delay:
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log.debug('(%s) relay_cb_core: Not relaying %s because of startup delay of %s.', irc.name,
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real_command, startup_delay)
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return
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# Try to fetch the format for the given command from the relay:clientbot_styles:$command
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# key, falling back to one defined in default_styles above, and then nothing if not found
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# there.
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text_template = irc.get_service_option('relay', 'clientbot_styles', {}).get(
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real_command, default_styles.get(real_command, ''))
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text_template = string.Template(text_template)
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if text_template:
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if irc.get_service_bot(source):
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# HACK: service bots are global and lack the relay state we look for.
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# just pretend the message comes from the current network.
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log.debug('(%s) relay_cb_core: Overriding network origin to local (source=%s)', irc.name, source)
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sourcenet = irc.name
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realsource = source
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else:
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# Get the original client that the relay client source was meant for.
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log.debug('(%s) relay_cb_core: Trying to find original sender (user) for %s', irc.name, source)
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try:
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origuser = relay.get_orig_user(irc, source) or args['userdata'].remote
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except (AttributeError, KeyError):
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log.debug('(%s) relay_cb_core: Trying to find original sender (server) for %s. serverdata=%s', irc.name, source, args.get('serverdata'))
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try:
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localsid = args.get('serverdata') or irc.servers[source]
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origuser = (localsid.remote, world.networkobjects[localsid.remote].uplink)
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except (AttributeError, KeyError):
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return
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log.debug('(%s) relay_cb_core: Original sender found as %s', irc.name, origuser)
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sourcenet, realsource = origuser
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try: # Try to get the full network name
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netname = conf.conf['servers'][sourcenet]['netname']
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except KeyError:
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netname = sourcenet
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# Figure out where the message is destined to.
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stripped_target = target = args.get('channel') or args.get('target')
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if isinstance(target, str):
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# HACK: cheap fix to prevent @#channel messages from interpreted as non-channel specific
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stripped_target = target.lstrip(''.join(irc.prefixmodes.values()))
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if target is None or not (irc.is_channel(stripped_target) or private):
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# Non-channel specific message (e.g. QUIT or NICK). If this isn't a PM, figure out
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# all channels that the sender shares over the relay, and relay them to those
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# channels.
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userdata = args.get('userdata') or irc.users.get(source)
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if not userdata:
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# No user data given. This was probably some other global event such as SQUIT.
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userdata = irc.pseudoclient
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targets = [channel for channel in userdata.channels if relay.get_relay(irc, channel)]
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else:
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# Pluralize the channel so that we can iterate over it.
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targets = [target]
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args['channel'] = stripped_target
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log.debug('(%s) relay_cb_core: Relaying event %s to channels: %s', irc.name, real_command, targets)
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identhost = ''
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if source in irc.users:
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try:
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identhost = irc.get_hostmask(source).split('!')[-1]
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except KeyError: # User got removed due to quit
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identhost = '%s@%s' % (args['userdata'].ident, args['userdata'].host)
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# This is specifically spaced so that ident@host is only shown for users that have
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# one, and not servers.
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identhost = ' (%s)' % identhost
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# $target_nick: Convert the target for kicks, etc. from a UID to a nick
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if args.get("target") in irc.users:
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args["target_nick"] = irc.get_friendly_name(args['target'])
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# Join up modes from their list form
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if args.get('modes'):
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args['modes'] = irc.join_modes(args['modes'])
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mode_prefix = ''
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if 'channel' in args:
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# Display the real (remote) channel name instead of the local one, if applicable.
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args['local_channel'] = args['channel']
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log.debug('(%s) relay_clientbot: coersing $channel from %s to %s', irc.name, args['local_channel'], args['channel'])
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sourceirc = world.networkobjects.get(sourcenet)
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log.debug('(%s) relay_clientbot: Checking prefix modes for %s on %s (relaying to %s)',
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irc.name, realsource, sourcenet, args['channel'])
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if sourceirc:
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args['channel'] = remotechan = relay.get_remote_channel(irc, sourceirc, args['channel'])
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if source in irc.users and remotechan in sourceirc.channels and \
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realsource in sourceirc.channels[remotechan].users:
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# Fetch the prefixmode prefixes (e.g. ~@%) for the sender, if available.
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prefixmodes = sourceirc.channels[remotechan].get_prefix_modes(realsource)
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log.debug('(%s) relay_clientbot: got prefix modes %s for %s on %s@%s',
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irc.name, prefixmodes, realsource, remotechan, sourcenet)
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if prefixmodes:
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# Only pick the highest prefix.
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mode_prefix = sourceirc.prefixmodes.get(
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sourceirc.cmodes.get(prefixmodes[0]))
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args.update({
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'netname': netname, 'sender': sourcename, 'sender_identhost': identhost,
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'colored_sender': color_text(sourcename), 'colored_netname': color_text(netname),
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'mode_prefix': mode_prefix
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})
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for target in targets:
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cargs = args.copy() # Copy args list to manipulate them in a channel specific way
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# $nicks / $colored_nicks: used when the event affects multiple users, such as SJOIN or SQUIT.
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# For SJOIN, this is simply a list of nicks. For SQUIT, this is sent as a dict
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# mapping channels to lists of nicks, as netsplits aren't channel specific but
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# still have to be relayed as such.
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nicklist = args.get('nicks')
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if nicklist:
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# Get channel-specific nick list if relevent.
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if isinstance(nicklist, dict):
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nicklist = nicklist.get(target, [])
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# Ignore if no nicks are affected on the channel.
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if not nicklist:
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continue
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colored_nicks = [color_text(nick) for nick in nicklist]
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# Join both the nicks and colored_nicks fields into a comma separated string.
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cargs['nicks'] = ', '.join(nicklist)
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cargs['colored_nicks'] = ', '.join(colored_nicks)
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text = text_template.safe_substitute(cargs)
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# PMs are always sent as notice - this prevents unknown command loops with bots.
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irc.msg(target, text, loopback=False, notice=private)
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utils.add_hook(cb_relay_core, 'CLIENTBOT_MESSAGE')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_KICK')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_PART')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_JOIN')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_QUIT')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_NICK')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_SJOIN')
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utils.add_hook(cb_relay_core, 'CLIENTBOT_SQUIT')
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utils.add_hook(cb_relay_core, 'RELAY_RAW_MODE')
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@utils.add_cmd
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def rpm(irc, source, args):
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"""<target> <text>
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Sends PMs to users over the relay, if Clientbot PMs are enabled.
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"""
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try:
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target = args[0]
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text = ' '.join(args[1:])
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except IndexError:
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irc.error('Not enough arguments. Needs 2: target nick and text.')
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return
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relay = world.plugins.get('relay')
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if irc.has_cap('can-spawn-clients'):
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irc.error('This command is only supported on Clientbot networks. Try /msg %s <text>' % target)
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return
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elif relay is None:
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irc.error('PyLink Relay is not loaded.')
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return
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elif not text:
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irc.error('No text given.')
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return
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elif not conf.conf.get('relay').get('allow_clientbot_pms'):
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irc.error('Private messages with users connected via Clientbot have been '
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'administratively disabled.')
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return
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uid = irc.nick_to_uid(target)
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if not uid:
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irc.error('Unknown user %s.' % target)
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return
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elif not relay.is_relay_client(irc, uid):
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irc.error('%s is not a relay user.' % target)
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return
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else:
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assert not irc.is_internal_client(source), "rpm is not allowed from PyLink bots"
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# Send the message through relay by faking a hook for its handler.
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relay.handle_messages(irc, source, 'RELAY_CLIENTBOT_PRIVMSG', {'target': uid, 'text': text})
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irc.reply('Message sent.')
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