# relay_clientbot.py: Clientbot extensions for Relay import string import collections import time import hashlib from pylinkirc import utils, conf, world from pylinkirc.log import log # TODO: document configurable styles in relay::clientbot_styles::COMMAND_NAME # These use template strings as documented @ https://docs.python.org/3/library/string.html#template-strings default_styles = {'MESSAGE': '\x02[$colored_netname]\x02 <$colored_sender> $text', 'KICK': '\x02[$colored_netname]\x02 - $colored_sender$sender_identhost has kicked $target_nick from $channel ($text)', 'PART': '\x02[$colored_netname]\x02 - $colored_sender$sender_identhost has left $channel ($text)', 'JOIN': '\x02[$colored_netname]\x02 - $colored_sender$sender_identhost has joined $channel', 'NICK': '\x02[$colored_netname]\x02 - $colored_sender$sender_identhost is now known as $newnick', 'QUIT': '\x02[$colored_netname]\x02 - $colored_sender$sender_identhost has quit ($text)', 'ACTION': '\x02[$colored_netname]\x02 * $colored_sender $text', 'NOTICE': '\x02[$colored_netname]\x02 - Notice from $colored_sender: $text', 'SQUIT': '\x02[$colored_netname]\x02 - Netsplit lost users: $colored_nicks', 'SJOIN': '\x02[$colored_netname]\x02 - Netjoin gained users: $colored_nicks', 'PM': 'PM from $sender on $netname: $text', 'PNOTICE': '<$sender> $text', } def color_text(s): """ Returns a colorized version of the given text based on a simple hash algorithm (sum of all characters). """ colors = ('02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12', '13', '15') digest = hashlib.md5(s.encode()).hexdigest() digest = int(digest, base=16) num = digest % len(colors) return "\x03%s%s\x03" % (colors[num], s) def cb_relay_core(irc, source, command, args): """ This function takes Clientbot events and formats them as text to the target channel / user. """ real_command = command.split('_')[-1] relay = world.plugins.get('relay') private = False if irc.pseudoclient and relay: try: sourcename = irc.getFriendlyName(source) except KeyError: # User has left due to /quit sourcename = args['userdata'].nick relay_conf = conf.conf.get('relay', {}) # Be less floody on startup: don't relay non-PRIVMSGs for the first X seconds after connect. startup_delay = relay_conf.get('clientbot_startup_delay', 5) # Special case for CTCPs. if real_command == 'MESSAGE': # CTCP action, format accordingly if (not args.get('is_notice')) and args['text'].startswith('\x01ACTION ') and args['text'].endswith('\x01'): args['text'] = args['text'][8:-1] real_command = 'ACTION' elif not utils.isChannel(args['target']): # Target is a user; handle this accordingly. if relay_conf.get('allow_clientbot_pms'): real_command = 'PNOTICE' if args.get('is_notice') else 'PM' private = True # Other CTCPs are ignored elif args['text'].startswith('\x01'): return elif args.get('is_notice'): # Different syntax for notices real_command = 'NOTICE' elif (time.time() - irc.start_ts) < startup_delay: log.debug('(%s) relay_cb_core: Not relaying %s because of startup delay of %s.', irc.name, real_command, startup_delay) return # Try to fetch the format for the given command from the relay:clientbot_styles:$command # key, falling back to one defined in default_styles above, and then nothing if not found # there. text_template = relay_conf.get('clientbot_styles', {}).get(real_command, default_styles.get(real_command, '')) text_template = string.Template(text_template) if text_template: if irc.isServiceBot(source): # HACK: service bots are global and lack the relay state we look for. # just pretend the message comes from the current network. log.debug('(%s) relay_cb_core: Overriding network origin to local (source=%s)', irc.name, source) netname = irc.name else: # Get the original client that the relay client source was meant for. log.debug('(%s) relay_cb_core: Trying to find original sender (user) for %s', irc.name, source) try: origuser = relay.getOrigUser(irc, source) or args['userdata'].remote except (AttributeError, KeyError): log.debug('(%s) relay_cb_core: Trying to find original sender (server) for %s. serverdata=%s', irc.name, source, args.get('serverdata')) try: origuser = ((args.get('serverdata') or irc.servers[source]).remote,) except (AttributeError, KeyError): return log.debug('(%s) relay_cb_core: Original sender found as %s', irc.name, origuser) netname = origuser[0] try: # Try to get the full network name netname = conf.conf['servers'][netname]['netname'] except KeyError: pass # Figure out where the message is destined to. target = args.get('channel') or args.get('target') if target is None or not (utils.isChannel(target) or private): # Non-channel specific message (e.g. QUIT or NICK). If this isn't a PM, figure out # all channels that the sender shares over the relay, and relay them to those # channels. userdata = args.get('userdata') or irc.users.get(source) if not userdata: # No user data given. This was probably some other global event such as SQUIT. userdata = irc.pseudoclient targets = [channel for channel in userdata.channels if relay.getRelay((irc.name, channel))] else: # Pluralize the channel so that we can iterate over it. targets = [target] log.debug('(%s) relay_cb_core: Relaying event %s to channels: %s', irc.name, real_command, targets) if source in irc.users: try: identhost = irc.getHostmask(source).split('!')[-1] except KeyError: # User got removed due to quit identhost = '%s@%s' % (args['olduser'].ident, args['olduser'].host) # This is specifically spaced so that ident@host is only shown for users that have # one, and not servers. identhost = ' (%s)' % identhost else: identhost = '' # $target_nick: Convert the target for kicks, etc. from a UID to a nick if args.get("target") in irc.users: args["target_nick"] = irc.getFriendlyName(args['target']) args.update({'netname': netname, 'sender': sourcename, 'sender_identhost': identhost, 'colored_sender': color_text(sourcename), 'colored_netname': color_text(netname)}) if 'channel' in args: # Display the real channel instead of the local name, if applicable args['local_channel'] = args['channel'] args['channel'] = relay.getRemoteChan(irc, world.networkobjects[origuser[0]], args['channel']) log.debug('(%s) relay_clientbot: coersing $channel from %s to %s', irc.name, args['local_channel'], args['channel']) for target in targets: cargs = args.copy() # Copy args list to manipulate them in a channel specific way # $nicks / $colored_nicks: used when the event affects multiple users, such as SJOIN or SQUIT. # For SJOIN, this is simply a list of nicks. For SQUIT, this is sent as a dict # mapping channels to lists of nicks, as netsplits aren't channel specific but # still have to be relayed as such. nicklist = args.get('nicks') if nicklist: # Get channel-specific nick list if relevent. if type(nicklist) == collections.defaultdict: nicklist = nicklist.get(target, []) # Ignore if no nicks are affected on the channel. if not nicklist: continue colored_nicks = [color_text(nick) for nick in nicklist] # Join both the nicks and colored_nicks fields into a comma separated string. cargs['nicks'] = ', '.join(nicklist) cargs['colored_nicks'] = ', '.join(colored_nicks) text = text_template.safe_substitute(cargs) # PMs are always sent as notice - this prevents unknown command loops with bots. irc.msg(target, text, loopback=False, notice=private) utils.add_hook(cb_relay_core, 'CLIENTBOT_MESSAGE') utils.add_hook(cb_relay_core, 'CLIENTBOT_KICK') utils.add_hook(cb_relay_core, 'CLIENTBOT_PART') utils.add_hook(cb_relay_core, 'CLIENTBOT_JOIN') utils.add_hook(cb_relay_core, 'CLIENTBOT_QUIT') utils.add_hook(cb_relay_core, 'CLIENTBOT_NICK') utils.add_hook(cb_relay_core, 'CLIENTBOT_SJOIN') utils.add_hook(cb_relay_core, 'CLIENTBOT_SQUIT') @utils.add_cmd def rpm(irc, source, args): """ Sends PMs to users over the relay, if Clientbot PMs are enabled. """ try: target = args[0] text = ' '.join(args[1:]) except IndexError: irc.reply('Error: Not enough arguments. Needs 2: target nick and text.') return relay = world.plugins.get('relay') if irc.protoname != 'clientbot': irc.reply('Error: This command is only supported on Clientbot networks. Try /msg %s ' % target) return elif relay is None: irc.reply('Error: PyLink Relay is not loaded.') return elif not text: irc.reply('Error: No text given.') return elif not conf.conf.get('relay').get('allow_clientbot_pms'): irc.reply('Error: Private messages with users connected via Clientbot have been ' 'administratively disabled.') return uid = irc.nickToUid(target) if not uid: irc.reply('Error: Unknown user %s.' % target) return elif not relay.isRelayClient(irc, uid): irc.reply('Error: %s is not a relay user.' % target) return else: assert not irc.isInternalClient(source), "rpm is not allowed from PyLink bots" # Send the message through relay by faking a hook for its handler. relay.handle_messages(irc, source, 'RELAY_CLIENTBOT_PRIVMSG', {'target': uid, 'text': text}) irc.reply('Message sent.')