mirror of
https://github.com/jlu5/PyLink.git
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1761 lines
74 KiB
Python
1761 lines
74 KiB
Python
# relay.py: PyLink Relay plugin
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import pickle
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import time
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import threading
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import string
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from collections import defaultdict
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from pylinkirc import utils, world
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from pylinkirc.log import log
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### GLOBAL (statekeeping) VARIABLES
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relayusers = defaultdict(dict)
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relayservers = defaultdict(dict)
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spawnlocks = defaultdict(threading.RLock)
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spawnlocks_servers = defaultdict(threading.RLock)
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exportdb_timer = None
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db = {}
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dbname = utils.getDatabaseName('pylinkrelay')
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### INTERNAL FUNCTIONS
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def initializeAll(irc):
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"""Initializes all relay channels for the given IRC object."""
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# Wait for all IRC objects to be created first. This prevents
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# relay servers from being spawned too early (before server authentication),
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# which would break connections.
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world.started.wait(2)
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for chanpair, entrydata in db.items():
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# Iterate over all the channels stored in our relay links DB.
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network, channel = chanpair
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# Initialize each relay channel on their home network, and on every linked one too.
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initializeChannel(irc, channel)
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for link in entrydata['links']:
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network, channel = link
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initializeChannel(irc, channel)
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def main(irc=None):
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"""Main function, called during plugin loading at start."""
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# Load the relay links database.
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loadDB()
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log.debug('relay.main: loading links database')
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# Schedule periodic exports of the links database.
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scheduleExport(starting=True)
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log.debug('relay.main: scheduling export loop')
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if irc is not None:
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# irc is defined when the plugin is reloaded. Otherwise, it means that we've just started the
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# server. Iterate over all connected networks and initialize their relay users.
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for ircobj in world.networkobjects.values():
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if ircobj.connected.is_set():
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initializeAll(ircobj)
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log.debug('relay.main: finished initialization sequence')
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def die(sourceirc):
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"""Deinitialize PyLink Relay by quitting all relay clients and saving the
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relay DB."""
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# For every connected network:
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for irc in world.networkobjects.values():
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# 1) Find all the relay clients and quit them.
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for user in irc.users.copy():
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if isRelayClient(irc, user):
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irc.proto.quit(user, "Relay plugin unloaded.")
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# 2) SQUIT every relay subserver.
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for server, sobj in irc.servers.copy().items():
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if hasattr(sobj, 'remote'):
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irc.proto.squit(irc.sid, server, text="Relay plugin unloaded.")
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# 3) Clear our internal servers and users caches.
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relayservers.clear()
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relayusers.clear()
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# 4) Export the relay links database.
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exportDB()
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# 5) Kill the scheduling for any other exports.
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global exportdb_timer
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if exportdb_timer:
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log.debug("Relay: cancelling exportDB timer thread %s due to die()", threading.get_ident())
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exportdb_timer.cancel()
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allowed_chars = string.digits + string.ascii_letters + '/^|\\-_[]`'
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fallback_separator = '|'
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def normalizeNick(irc, netname, nick, separator=None, uid=''):
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"""Creates a normalized nickname for the given nick suitable for
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introduction to a remote network (as a relay client)."""
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separator = separator or irc.serverdata.get('separator') or "/"
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log.debug('(%s) relay.normalizeNick: using %r as separator.', irc.name, separator)
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orig_nick = nick
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protoname = irc.protoname
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maxnicklen = irc.maxnicklen
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# Charybdis, IRCu, etc. don't allow / in nicks, and will SQUIT with a protocol
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# violation if it sees one. Or it might just ignore the client introduction and
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# cause bad desyncs.
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protocol_allows_slashes = protoname.startswith(('insp', 'unreal')) or \
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irc.serverdata.get('relay_force_slashes')
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if '/' not in separator or not protocol_allows_slashes:
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separator = separator.replace('/', fallback_separator)
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nick = nick.replace('/', fallback_separator)
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if nick.startswith(tuple(string.digits+'-')):
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# On TS6 IRCds, nicks that start with 0-9 are only allowed if
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# they match the UID of the originating server. Otherwise, you'll
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# get nasty protocol violation SQUITs!
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# Nicks starting with - are likewise not valid.
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nick = '_' + nick
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suffix = separator + netname
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nick = nick[:maxnicklen]
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# Maximum allowed length of a nickname, minus the obligatory /network tag.
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allowedlength = maxnicklen - len(suffix)
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# If a nick is too long, the real nick portion will be cut off, but the
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# /network suffix MUST remain the same.
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nick = nick[:allowedlength]
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nick += suffix
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# Loop over every character in the nick, making sure that it only contains valid
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# characters.
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for char in nick:
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if char not in allowed_chars:
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nick = nick.replace(char, fallback_separator)
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# The nick we want exists? Darn, create another one then.
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# Increase the separator length by 1 if the user was already tagged,
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# but couldn't be created due to a nick conflict.
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# This can happen when someone steals a relay user's nick.
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# However, if the user is changing from, say, a long, cut-off nick to another long,
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# cut-off nick, we don't need to check for duplicates and tag the nick twice.
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# somecutoffnick/net would otherwise be erroneous NICK'ed to somecutoffnic//net,
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# even though there would be no collision because the old and new nicks are from
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# the same client.
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while irc.nickToUid(nick) and irc.nickToUid(nick) != uid:
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new_sep = separator + separator[-1]
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log.debug('(%s) relay.normalizeNick: nick %r is in use; using %r as new_sep.', irc.name, nick, new_sep)
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nick = normalizeNick(irc, netname, orig_nick, separator=new_sep)
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finalLength = len(nick)
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assert finalLength <= maxnicklen, "Normalized nick %r went over max " \
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"nick length (got: %s, allowed: %s!)" % (nick, finalLength, maxnicklen)
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return nick
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def normalizeHost(irc, host):
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"""Creates a normalized hostname for the given host suitable for
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introduction to a remote network (as a relay client)."""
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if irc.protoname == 'unreal':
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# UnrealIRCd doesn't allow slashes in hostnames
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host = host.replace('/', '.')
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return host[:64] # Limited to 64 chars
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def loadDB():
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"""Loads the relay database, creating a new one if this fails."""
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global db
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try:
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with open(dbname, "rb") as f:
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db = pickle.load(f)
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except (ValueError, IOError, OSError):
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log.info("Relay: failed to load links database %s"
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", creating a new one in memory...", dbname)
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db = {}
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def exportDB():
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"""Exports the relay database."""
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log.debug("Relay: exporting links database to %s", dbname)
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with open(dbname, 'wb') as f:
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pickle.dump(db, f, protocol=4)
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def scheduleExport(starting=False):
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"""
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Schedules exporting of the relay database in a repeated loop.
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"""
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global exportdb_timer
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if not starting:
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# Export the database, unless this is being called the first
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# thing after start (i.e. DB has just been loaded).
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exportDB()
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# TODO: possibly make delay between exports configurable
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exportdb_timer = threading.Timer(30, scheduleExport)
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exportdb_timer.name = 'PyLink Relay exportDB Loop'
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exportdb_timer.start()
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def getPrefixModes(irc, remoteirc, channel, user, mlist=None):
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"""
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Fetches all prefix modes for a user in a channel that are supported by the
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remote IRC network given.
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Optionally, an mlist argument can be given to look at an earlier state of
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the channel, e.g. for checking the op status of a mode setter before their
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modes are processed and added to the channel state.
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"""
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modes = ''
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if user in irc.channels[channel].users:
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# Iterate over the the prefix modes for relay supported by IRCd
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for pmode in irc.channels[channel].getPrefixModes(user, prefixmodes=mlist):
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if pmode in remoteirc.cmodes:
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modes += remoteirc.cmodes[pmode]
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return modes
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def spawnRelayServer(irc, remoteirc):
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irc.connected.wait(5)
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try:
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# ENDBURST is delayed by 3 secs on supported IRCds to prevent
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# triggering join-flood protection and the like.
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sid = irc.proto.spawnServer('%s.relay' % remoteirc.name,
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desc="PyLink Relay network - %s" %
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(remoteirc.serverdata.get('netname')\
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or remoteirc.name), endburst_delay=3)
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except ValueError: # Network not initialized yet, or a server name conflict.
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log.exception('(%s) Failed to spawn server for %r:',
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irc.name, remoteirc.name)
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# We will just bail here. Disconnect the bad network.
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handle_disconnect(irc, None, 'PYLINK_DISCONNECT_RELAY_FORCED', {})
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irc.disconnect()
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raise
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# Mark the server as a relay server
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irc.servers[sid].remote = remoteirc.name
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# Assign the newly spawned server as our relay server for the target net.
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relayservers[irc.name][remoteirc.name] = sid
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return sid
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def getRemoteSid(irc, remoteirc):
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"""Gets the remote server SID representing remoteirc on irc, spawning
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it if it doesn't exist."""
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log.debug('(%s) Grabbing spawnlocks_servers[%s]', irc.name, irc.name)
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if spawnlocks_servers[irc.name].acquire(5):
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try:
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sid = relayservers[irc.name][remoteirc.name]
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except KeyError:
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log.debug('(%s) getRemoteSid: %s.relay doesn\'t have a known SID, spawning.', irc.name, remoteirc.name)
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sid = spawnRelayServer(irc, remoteirc)
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log.debug('(%s) getRemoteSid: got %s for %s.relay', irc.name, sid, remoteirc.name)
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if sid not in irc.servers:
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log.debug('(%s) getRemoteSid: SID %s for %s.relay doesn\'t exist, respawning', irc.name, sid, remoteirc.name)
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# Our stored server doesn't exist anymore. This state is probably a holdover from a netsplit,
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# so let's refresh it.
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sid = spawnRelayServer(irc, remoteirc)
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elif sid in irc.servers and irc.servers[sid].remote != remoteirc.name:
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log.debug('(%s) getRemoteSid: %s.relay != %s.relay, respawning', irc.name, irc.servers[sid].remote, remoteirc.name)
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sid = spawnRelayServer(irc, remoteirc)
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log.debug('(%s) getRemoteSid: got %s for %s.relay (round 2)', irc.name, sid, remoteirc.name)
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spawnlocks_servers[irc.name].release()
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return sid
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def spawnRelayUser(irc, remoteirc, user):
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userobj = irc.users.get(user)
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if userobj is None:
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# The query wasn't actually a valid user, or the network hasn't
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# been connected yet... Oh well!
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return
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nick = normalizeNick(remoteirc, irc.name, userobj.nick)
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# Truncate idents at 10 characters, because TS6 won't like them otherwise!
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ident = userobj.ident[:10]
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# Normalize hostnames
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host = normalizeHost(remoteirc, userobj.host)
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realname = userobj.realname
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modes = set(getSupportedUmodes(irc, remoteirc, userobj.modes))
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opertype = ''
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if ('o', None) in userobj.modes:
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if hasattr(userobj, 'opertype'):
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# InspIRCd's special OPERTYPE command; this is mandatory
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# and setting of umode +/-o will fail unless this
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# is used instead. This also sets an oper type for
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# the user, which is used in WHOIS, etc.
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# If an opertype exists for the user, add " (remote)"
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# for the relayed clone, so that it shows in whois.
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# Janus does this too. :)
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log.debug('(%s) relay.getRemoteUser: setting OPERTYPE of client for %r to %s',
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irc.name, user, userobj.opertype)
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opertype = userobj.opertype + ' (remote)'
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else:
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opertype = 'IRC Operator (remote)'
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# Set hideoper on remote opers, to prevent inflating
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# /lusers and various /stats
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hideoper_mode = remoteirc.umodes.get('hideoper')
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try:
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use_hideoper = irc.conf['relay']['hideoper']
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except KeyError:
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use_hideoper = True
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if hideoper_mode and use_hideoper:
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modes.add((hideoper_mode, None))
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rsid = getRemoteSid(remoteirc, irc)
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try:
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showRealIP = irc.conf['relay']['show_ips'] and not \
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irc.serverdata.get('relay_no_ips') and not \
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remoteirc.serverdata.get('relay_no_ips')
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except KeyError:
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showRealIP = False
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if showRealIP:
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ip = userobj.ip
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realhost = userobj.realhost
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else:
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realhost = None
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ip = '0.0.0.0'
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u = remoteirc.proto.spawnClient(nick, ident=ident,
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host=host, realname=realname,
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modes=modes, ts=userobj.ts,
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opertype=opertype, server=rsid,
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ip=ip, realhost=realhost).uid
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try:
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remoteirc.users[u].remote = (irc.name, user)
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remoteirc.users[u].opertype = opertype
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away = userobj.away
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if away:
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remoteirc.proto.away(u, away)
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except KeyError:
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# User got killed somehow while we were setting options on it.
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# This is probably being done by the uplink, due to something like an
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# invalid nick, etc.
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raise
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relayusers[(irc.name, user)][remoteirc.name] = u
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return u
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def getRemoteUser(irc, remoteirc, user, spawnIfMissing=True):
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"""
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Gets the UID of the relay client requested on the target network (remoteirc),
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spawning one if it doesn't exist and spawnIfMissing is True."""
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# Wait until the network is working before trying to spawn anything.
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log.debug('(%s) getRemoteUser: waiting for irc.connected', irc.name)
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irc.connected.wait(5)
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# Don't spawn clones for registered service bots.
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sbot = irc.isServiceBot(user)
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if sbot:
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return sbot.uids.get(remoteirc.name)
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log.debug('(%s) Grabbing spawnlocks[%s]', irc.name, irc.name)
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if spawnlocks[irc.name].acquire(5):
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# Be sort-of thread safe: lock the user spawns for the current net first.
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u = None
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try:
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# Look up the existing user, stored here as dict entries in the format:
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# {('ournet', 'UID'): {'remotenet1': 'UID1', 'remotenet2': 'UID2'}}
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u = relayusers[(irc.name, user)][remoteirc.name]
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except KeyError:
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# User doesn't exist. Spawn a new one if requested.
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if spawnIfMissing:
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u = spawnRelayUser(irc, remoteirc, user)
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# This is a sanity check to make sure netsplits and other state resets
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# don't break the relayer. If it turns out there was a client in our relayusers
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# cache for the requested UID, but it doesn't match the request,
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# assume it was a leftover from the last split and replace it with a new one.
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if u and ((u not in remoteirc.users) or remoteirc.users[u].remote != (irc.name, user)):
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u = spawnRelayUser(irc, remoteirc, user)
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spawnlocks[irc.name].release()
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return u
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def getOrigUser(irc, user, targetirc=None):
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"""
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Given the UID of a relay client, returns a tuple of the home network name
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and original UID of the user it was spawned for.
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If targetirc is given, getRemoteUser() is called to get the relay client
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representing the original user on that target network."""
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# First, iterate over everyone!
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try:
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remoteuser = irc.users[user].remote
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except (AttributeError, KeyError):
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remoteuser = None
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log.debug('(%s) relay.getOrigUser: remoteuser set to %r (looking up %s/%s).',
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irc.name, remoteuser, user, irc.name)
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if remoteuser:
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# If targetirc is given, we'll return simply the UID of the user on the
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# target network, if it exists. Otherwise, we'll return a tuple
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# with the home network name and the original user's UID.
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sourceobj = world.networkobjects.get(remoteuser[0])
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if targetirc and sourceobj:
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if remoteuser[0] == targetirc.name:
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# The user we found's home network happens to be the one being
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# requested; just return the UID then.
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return remoteuser[1]
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# Otherwise, use getRemoteUser to find our UID.
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res = getRemoteUser(sourceobj, targetirc, remoteuser[1],
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spawnIfMissing=False)
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log.debug('(%s) relay.getOrigUser: targetirc found, getting %r as '
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'remoteuser for %r (looking up %s/%s).', irc.name, res,
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remoteuser[1], user, irc.name)
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return res
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else:
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return remoteuser
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def getRelay(chanpair):
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"""Finds the matching relay entry name for the given (network name, channel)
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pair, if one exists."""
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if chanpair in db: # This chanpair is a shared channel; others link to it
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return chanpair
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# This chanpair is linked *to* a remote channel
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for name, dbentry in db.items():
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if chanpair in dbentry['links']:
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return name
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def getRemoteChan(irc, remoteirc, channel):
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"""Returns the linked channel name for the given channel on remoteirc,
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if one exists."""
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query = (irc.name, channel)
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remotenetname = remoteirc.name
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chanpair = getRelay(query)
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if chanpair is None:
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return
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if chanpair[0] == remotenetname:
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return chanpair[1]
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else:
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for link in db[chanpair]['links']:
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if link[0] == remotenetname:
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return link[1]
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def initializeChannel(irc, channel):
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"""Initializes a relay channel (merge local/remote users, set modes, etc.)."""
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# We're initializing a relay that already exists. This can be done at
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# ENDBURST, or on the LINK command.
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relay = getRelay((irc.name, channel))
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log.debug('(%s) relay.initializeChannel being called on %s', irc.name, channel)
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log.debug('(%s) relay.initializeChannel: relay pair found to be %s', irc.name, relay)
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queued_users = []
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if relay:
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all_links = db[relay]['links'].copy()
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all_links.update((relay,))
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log.debug('(%s) relay.initializeChannel: all_links: %s', irc.name, all_links)
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# Iterate over all the remote channels linked in this relay.
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for link in all_links:
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remotenet, remotechan = link
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if remotenet == irc.name: # If the network is us, skip.
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continue
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remoteirc = world.networkobjects.get(remotenet)
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if remoteirc is None:
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# Remote network doesn't have an IRC object; e.g. it was removed
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# from the config. Skip this.
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continue
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rc = remoteirc.channels[remotechan]
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|
|
|
if not (remoteirc.connected.is_set() and getRemoteChan(remoteirc, irc, remotechan)):
|
|
continue # Remote network isn't connected.
|
|
|
|
# Join their (remote) users and set their modes.
|
|
relayJoins(remoteirc, remotechan, rc.users, rc.ts)
|
|
topic = remoteirc.channels[remotechan].topic
|
|
|
|
# Only update the topic if it's different from what we already have,
|
|
# and topic bursting is complete.
|
|
if remoteirc.channels[remotechan].topicset and topic != irc.channels[channel].topic:
|
|
irc.proto.topicBurst(irc.sid, channel, topic)
|
|
|
|
# Send our users and channel modes to the other nets
|
|
log.debug('(%s) relay.initializeChannel: joining our (%s) users: %s', irc.name, remotenet, irc.channels[channel].users)
|
|
relayJoins(irc, channel, irc.channels[channel].users, irc.channels[channel].ts)
|
|
|
|
world.services['pylink'].extra_channels[irc.name].add(channel)
|
|
if irc.pseudoclient and irc.pseudoclient.uid not in irc.channels[channel].users:
|
|
irc.proto.join(irc.pseudoclient.uid, channel)
|
|
|
|
def removeChannel(irc, channel):
|
|
"""Destroys a relay channel by parting all of its users."""
|
|
if irc is None:
|
|
return
|
|
|
|
if channel not in map(str.lower, irc.serverdata.get('channels', [])):
|
|
world.services['pylink'].extra_channels[irc.name].discard(channel)
|
|
irc.proto.part(irc.pseudoclient.uid, channel, 'Channel delinked.')
|
|
|
|
relay = getRelay((irc.name, channel))
|
|
if relay:
|
|
for user in irc.channels[channel].users.copy():
|
|
if not isRelayClient(irc, user):
|
|
relayPart(irc, channel, user)
|
|
# Don't ever part the main client from any of its autojoin channels.
|
|
else:
|
|
if user == irc.pseudoclient.uid and channel in \
|
|
irc.serverdata.get('channels', []):
|
|
continue
|
|
irc.proto.part(user, channel, 'Channel delinked.')
|
|
# Don't ever quit it either...
|
|
if user != irc.pseudoclient.uid and not irc.users[user].channels:
|
|
remoteuser = getOrigUser(irc, user)
|
|
del relayusers[remoteuser][irc.name]
|
|
irc.proto.quit(user, 'Left all shared channels.')
|
|
|
|
def checkClaim(irc, channel, sender, chanobj=None):
|
|
"""
|
|
Checks whether the sender of a kick/mode change passes CLAIM checks for
|
|
a given channel. This returns True if any of the following criteria are met:
|
|
|
|
1) No relay exists for the channel in question.
|
|
2) The originating network is the one that created the relay.
|
|
3) The CLAIM list for the relay in question is empty.
|
|
4) The originating network is in the CLAIM list for the relay in question.
|
|
5) The sender is halfop or above in the channel.
|
|
6) The sender is a PyLink client/server (checks are suppressed in this case).
|
|
"""
|
|
relay = getRelay((irc.name, channel))
|
|
try:
|
|
mlist = chanobj.prefixmodes
|
|
except AttributeError:
|
|
mlist = None
|
|
|
|
sender_modes = getPrefixModes(irc, irc, channel, sender, mlist=mlist)
|
|
log.debug('(%s) relay.checkClaim: sender modes (%s/%s) are %s (mlist=%s)', irc.name,
|
|
sender, channel, sender_modes, mlist)
|
|
# XXX: stop hardcoding modes to check for and support mlist in isHalfopPlus and friends
|
|
return (not relay) or irc.name == relay[0] or not db[relay]['claim'] or \
|
|
irc.name in db[relay]['claim'] or \
|
|
any([mode in sender_modes for mode in ('y', 'q', 'a', 'o', 'h')]) \
|
|
or irc.isInternalClient(sender) or \
|
|
irc.isInternalServer(sender)
|
|
|
|
def getSupportedUmodes(irc, remoteirc, modes):
|
|
"""Given a list of user modes, filters out all of those not supported by the
|
|
remote network."""
|
|
supported_modes = []
|
|
|
|
# Iterate over all mode pairs.
|
|
for modepair in modes:
|
|
try:
|
|
# Get the prefix and the actual mode character (the prefix being + or -, or
|
|
# whether we're setting or unsetting a mode)
|
|
prefix, modechar = modepair[0]
|
|
except ValueError:
|
|
# If the prefix is missing, assume we're adding a mode.
|
|
modechar = modepair[0]
|
|
prefix = '+'
|
|
|
|
# Get the mode argument.
|
|
arg = modepair[1]
|
|
|
|
# Iterate over all supported user modes for the current network.
|
|
for name, m in irc.umodes.items():
|
|
supported_char = None
|
|
|
|
# Mode character matches one in our list, so set that named mode
|
|
# as the one we're trying to set. Then, look up that named mode
|
|
# in the supported modes list for the TARGET network, and set that
|
|
# mode character as the one we're setting, if it exists.
|
|
if modechar == m:
|
|
if name not in whitelisted_umodes:
|
|
log.debug("(%s) relay.getSupportedUmodes: skipping mode (%r, %r) because "
|
|
"it isn't a whitelisted (safe) mode for relay.",
|
|
irc.name, modechar, arg)
|
|
break
|
|
supported_char = remoteirc.umodes.get(name)
|
|
|
|
if supported_char:
|
|
supported_modes.append((prefix+supported_char, arg))
|
|
break
|
|
else:
|
|
log.debug("(%s) relay.getSupportedUmodes: skipping mode (%r, %r) because "
|
|
"the remote network (%s)'s IRCd (%s) doesn't support it.",
|
|
irc.name, modechar, arg, remoteirc.name,
|
|
remoteirc.protoname)
|
|
return supported_modes
|
|
|
|
def isRelayClient(irc, user):
|
|
"""Returns whether the given user is a relay client."""
|
|
try:
|
|
if irc.users[user].remote:
|
|
# Is the .remote attribute set? If so, don't relay already
|
|
# relayed clients; that'll trigger an endless loop!
|
|
return True
|
|
except AttributeError: # Nope, it isn't.
|
|
pass
|
|
except KeyError: # The user doesn't exist?!?
|
|
return True
|
|
return False
|
|
|
|
### EVENT HANDLER INTERNALS
|
|
|
|
def relayJoins(irc, channel, users, ts, burst=True):
|
|
"""
|
|
Relays one or more users' joins from a channel to its relay links.
|
|
"""
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
queued_users = []
|
|
if name == irc.name or not remoteirc.connected.is_set():
|
|
# Don't relay things to their source network...
|
|
continue
|
|
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
if remotechan is None:
|
|
# If there is no link on the current network for the channel in question,
|
|
# just skip it
|
|
continue
|
|
|
|
log.debug('(%s) relay.relayJoins: got %r for users', irc.name, users)
|
|
|
|
for user in users.copy():
|
|
if isRelayClient(irc, user):
|
|
# Don't clone relay clients; that'll cause bad infinite loops.
|
|
continue
|
|
|
|
assert user in irc.users, "(%s) relay.relayJoins: How is this possible? %r isn't in our user database." % (irc.name, user)
|
|
u = getRemoteUser(irc, remoteirc, user)
|
|
|
|
if not u:
|
|
continue
|
|
|
|
if u not in remoteirc.channels[remotechan].users:
|
|
# Note: only join users if they aren't already joined. This prevents op floods
|
|
# on charybdis from repeated SJOINs sent for one user.
|
|
|
|
# Fetch the known channel TS and all the prefix modes for each user. This ensures
|
|
# the different sides of the relay are merged properly.
|
|
ts = irc.channels[channel].ts
|
|
prefixes = getPrefixModes(irc, remoteirc, channel, user)
|
|
|
|
# proto.sjoin() takes its users as a list of (prefix mode characters, UID) pairs.
|
|
userpair = (prefixes, u)
|
|
queued_users.append(userpair)
|
|
|
|
if queued_users:
|
|
# Look at whether we should relay this join as a regular JOIN, or a SJOIN.
|
|
# SJOIN will be used if either the amount of users to join is > 1, or there are modes
|
|
# to be set on the joining user.
|
|
if burst or len(queued_users) > 1 or queued_users[0][0]:
|
|
modes = getSupportedCmodes(irc, remoteirc, channel, irc.channels[channel].modes)
|
|
remoteirc.proto.sjoin(getRemoteSid(remoteirc, irc), remotechan, queued_users, ts=ts, modes=modes)
|
|
else:
|
|
# A regular JOIN only needs the user and the channel. TS, source SID, etc., can all be omitted.
|
|
remoteirc.proto.join(queued_users[0][1], remotechan)
|
|
|
|
def relayPart(irc, channel, user):
|
|
"""
|
|
Relays a user part from a channel to its relay links, as part of a channel delink.
|
|
"""
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
if name == irc.name or not remoteirc.connected.is_set():
|
|
# Don't relay things to their source network...
|
|
continue
|
|
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
log.debug('(%s) relay.relayPart: looking for %s/%s on %s', irc.name, user, irc.name, remoteirc.name)
|
|
log.debug('(%s) relay.relayPart: remotechan found as %s', irc.name, remotechan)
|
|
|
|
remoteuser = getRemoteUser(irc, remoteirc, user, spawnIfMissing=False)
|
|
log.debug('(%s) relay.relayPart: remoteuser for %s/%s found as %s', irc.name, user, irc.name, remoteuser)
|
|
|
|
if remotechan is None or remoteuser is None:
|
|
# If there is no relay channel on the target network, or the relay
|
|
# user doesn't exist, just do nothing.
|
|
continue
|
|
|
|
# Part the relay client with the channel delinked message.
|
|
remoteirc.proto.part(remoteuser, remotechan, 'Channel delinked.')
|
|
|
|
# If the relay client no longer has any channels, quit them to prevent inflating /lusers.
|
|
if isRelayClient(remoteirc, remoteuser) and not remoteirc.users[remoteuser].channels:
|
|
remoteirc.proto.quit(remoteuser, 'Left all shared channels.')
|
|
del relayusers[(irc.name, user)][remoteirc.name]
|
|
|
|
|
|
whitelisted_cmodes = {'admin', 'allowinvite', 'autoop', 'ban', 'banexception',
|
|
'blockcolor', 'halfop', 'invex', 'inviteonly', 'key',
|
|
'limit', 'moderated', 'noctcp', 'noextmsg', 'nokick',
|
|
'noknock', 'nonick', 'nonotice', 'op', 'operonly',
|
|
'opmoderated', 'owner', 'private', 'regonly',
|
|
'regmoderated', 'secret', 'sslonly', 'adminonly',
|
|
'stripcolor', 'topiclock', 'voice', 'flood',
|
|
'flood_unreal', 'joinflood', 'freetarget',
|
|
'noforwards', 'noinvite'}
|
|
whitelisted_umodes = {'bot', 'hidechans', 'hideoper', 'invisible', 'oper',
|
|
'regdeaf', 'stripcolor', 'noctcp', 'wallops',
|
|
'hideidle'}
|
|
def getSupportedCmodes(irc, remoteirc, channel, modes):
|
|
"""
|
|
Filters a channel mode change to the modes supported by the target IRCd.
|
|
"""
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
if not remotechan: # Not a relay channel
|
|
return []
|
|
|
|
supported_modes = []
|
|
for modepair in modes:
|
|
try:
|
|
prefix, modechar = modepair[0]
|
|
except ValueError:
|
|
modechar = modepair[0]
|
|
prefix = '+'
|
|
arg = modepair[1]
|
|
|
|
# Iterate over every mode see whether the remote IRCd supports
|
|
# this mode, and what its mode char for it is (if it is different).
|
|
for name, m in irc.cmodes.items():
|
|
supported_char = None
|
|
if modechar == m:
|
|
supported_char = remoteirc.cmodes.get(name)
|
|
|
|
if supported_char is None:
|
|
break
|
|
|
|
if name not in whitelisted_cmodes:
|
|
log.debug("(%s) relay.getSupportedCmodes: skipping mode (%r, %r) because "
|
|
"it isn't a whitelisted (safe) mode for relay.",
|
|
irc.name, modechar, arg)
|
|
break
|
|
|
|
if modechar in irc.prefixmodes:
|
|
# This is a prefix mode (e.g. +o). We must coerse the argument
|
|
# so that the target exists on the remote relay network.
|
|
log.debug("(%s) relay.getSupportedCmodes: coersing argument of (%r, %r) "
|
|
"for network %r.",
|
|
irc.name, modechar, arg, remoteirc.name)
|
|
|
|
# If the target is a remote user, get the real target
|
|
# (original user).
|
|
arg = getOrigUser(irc, arg, targetirc=remoteirc) or \
|
|
getRemoteUser(irc, remoteirc, arg, spawnIfMissing=False)
|
|
|
|
log.debug("(%s) relay.getSupportedCmodes: argument found as (%r, %r) "
|
|
"for network %r.",
|
|
irc.name, modechar, arg, remoteirc.name)
|
|
oplist = remoteirc.channels[remotechan].prefixmodes[name]
|
|
|
|
log.debug("(%s) relay.getSupportedCmodes: list of %ss on %r is: %s",
|
|
irc.name, name, remotechan, oplist)
|
|
|
|
if prefix == '+' and arg in oplist:
|
|
# Don't set prefix modes that are already set.
|
|
log.debug("(%s) relay.getSupportedCmodes: skipping setting %s on %s/%s because it appears to be already set.",
|
|
irc.name, name, arg, remoteirc.name)
|
|
break
|
|
|
|
supported_char = remoteirc.cmodes.get(name)
|
|
|
|
if supported_char:
|
|
final_modepair = (prefix+supported_char, arg)
|
|
if name in ('ban', 'banexception', 'invex') and not utils.isHostmask(arg):
|
|
# Don't add bans that don't match n!u@h syntax!
|
|
log.debug("(%s) relay.getSupportedCmodes: skipping mode (%r, %r) because it doesn't match nick!user@host syntax.",
|
|
irc.name, modechar, arg)
|
|
break
|
|
|
|
# Don't set modes that are already set, to prevent floods on TS6
|
|
# where the same mode can be set infinite times.
|
|
if prefix == '+' and final_modepair in remoteirc.channels[remotechan].modes:
|
|
log.debug("(%s) relay.getSupportedCmodes: skipping setting mode (%r, %r) on %s%s because it appears to be already set.",
|
|
irc.name, supported_char, arg, remoteirc.name, remotechan)
|
|
break
|
|
|
|
supported_modes.append(final_modepair)
|
|
|
|
log.debug('(%s) relay.getSupportedCmodes: final modelist (sending to %s%s) is %s', irc.name, remoteirc.name, remotechan, supported_modes)
|
|
return supported_modes
|
|
|
|
### EVENT HANDLERS
|
|
|
|
def handle_relay_whois(irc, source, command, args):
|
|
"""
|
|
WHOIS handler for the relay plugin.
|
|
"""
|
|
target = args['target']
|
|
server = args['server']
|
|
targetuser = irc.users[target]
|
|
|
|
def wreply(num, text):
|
|
"""Convenience wrapper to return WHOIS replies."""
|
|
# WHOIS replies are by convention prefixed with the target user's nick.
|
|
text = '%s %s' % (targetuser.nick, text)
|
|
irc.proto.numeric(server, num, source, text)
|
|
|
|
def checkSendKey(infoline):
|
|
"""
|
|
Returns whether we should send the given info line in WHOIS. This validates the
|
|
corresponding configuration option for being either "all" or "opers"."""
|
|
setting = irc.conf.get('relay', {}).get(infoline, '').lower()
|
|
if setting == 'all':
|
|
return True
|
|
elif setting == 'opers' and irc.isOper(source, allowAuthed=False):
|
|
return True
|
|
return False
|
|
|
|
# Get the real user for the WHOIS target.
|
|
origuser = getOrigUser(irc, target)
|
|
if origuser:
|
|
homenet, uid = origuser
|
|
realirc = world.networkobjects[homenet]
|
|
realuser = realirc.users[uid]
|
|
netname = realirc.serverdata.get('netname', homenet)
|
|
|
|
wreply(320, ":is a remote user connected via PyLink Relay. Home network: %s; "
|
|
"Home nick: %s" % (netname, realuser.nick))
|
|
|
|
if checkSendKey('whois_show_accounts') and realuser.services_account:
|
|
# Send account information if told to and the target is logged in.
|
|
wreply(330, "%s :is logged in (on %s) as" % (realuser.services_account, netname))
|
|
|
|
if checkSendKey('whois_show_server'):
|
|
wreply(320, ":is actually connected via the following server:")
|
|
realserver = realirc.getServer(uid)
|
|
realserver = realirc.servers[realserver]
|
|
wreply(312, "%s :%s" % (realserver.name, realserver.desc))
|
|
|
|
utils.add_hook(handle_relay_whois, 'PYLINK_CUSTOM_WHOIS')
|
|
|
|
def handle_operup(irc, numeric, command, args):
|
|
"""
|
|
Handles setting oper types on relay clients during oper up.
|
|
"""
|
|
newtype = args['text'] + ' (remote)'
|
|
for netname, user in relayusers[(irc.name, numeric)].items():
|
|
log.debug('(%s) relay.handle_opertype: setting OPERTYPE of %s/%s to %s',
|
|
irc.name, user, netname, newtype)
|
|
remoteirc = world.networkobjects[netname]
|
|
remoteirc.users[user].opertype = newtype
|
|
utils.add_hook(handle_operup, 'CLIENT_OPERED')
|
|
|
|
def handle_join(irc, numeric, command, args):
|
|
channel = args['channel']
|
|
if not getRelay((irc.name, channel)):
|
|
# No relay here, return.
|
|
return
|
|
ts = args['ts']
|
|
users = set(args['users'])
|
|
relayJoins(irc, channel, users, ts, burst=False)
|
|
utils.add_hook(handle_join, 'JOIN')
|
|
|
|
def handle_quit(irc, numeric, command, args):
|
|
# Lock the user spawning mechanism before proceeding, since we're going to be
|
|
# deleting client from the relayusers cache.
|
|
log.debug('(%s) Grabbing spawnlocks[%s]', irc.name, irc.name)
|
|
if spawnlocks[irc.name].acquire(5):
|
|
for netname, user in relayusers[(irc.name, numeric)].copy().items():
|
|
remoteirc = world.networkobjects[netname]
|
|
try: # Try to quit the client. If this fails because they're missing, bail.
|
|
remoteirc.proto.quit(user, args['text'])
|
|
except LookupError:
|
|
pass
|
|
del relayusers[(irc.name, numeric)]
|
|
spawnlocks[irc.name].release()
|
|
|
|
utils.add_hook(handle_quit, 'QUIT')
|
|
|
|
def handle_squit(irc, numeric, command, args):
|
|
"""
|
|
Handles SQUITs over relay.
|
|
"""
|
|
users = args['users']
|
|
target = args['target']
|
|
|
|
# Someone /SQUIT one of our relay subservers. Bad! Rejoin them!
|
|
if target in relayservers[irc.name].values():
|
|
sname = args['name']
|
|
remotenet = sname.split('.', 1)[0]
|
|
del relayservers[irc.name][remotenet]
|
|
|
|
for userpair in relayusers:
|
|
if userpair[0] == remotenet and irc.name in relayusers[userpair]:
|
|
del relayusers[userpair][irc.name]
|
|
|
|
remoteirc = world.networkobjects[remotenet]
|
|
initializeAll(remoteirc)
|
|
|
|
else:
|
|
# Some other netsplit happened on the network, we'll have to fake
|
|
# some *.net *.split quits for that.
|
|
for user in users:
|
|
log.debug('(%s) relay.handle_squit: sending handle_quit on %s', irc.name, user)
|
|
|
|
try: # Allow netsplit hiding to be toggled
|
|
show_splits = irc.conf['relay']['show_netsplits']
|
|
except KeyError:
|
|
show_splits = False
|
|
|
|
text = '*.net *.split'
|
|
if show_splits:
|
|
uplink = args['uplink']
|
|
try:
|
|
text = '%s %s' % (irc.servers[uplink].name, args['name'])
|
|
except (KeyError, AttributeError):
|
|
log.warning("(%s) relay.handle_squit: Failed to get server name for %s",
|
|
irc.name, uplink)
|
|
|
|
handle_quit(irc, user, command, {'text': text})
|
|
|
|
utils.add_hook(handle_squit, 'SQUIT')
|
|
|
|
def handle_nick(irc, numeric, command, args):
|
|
for netname, user in relayusers[(irc.name, numeric)].items():
|
|
remoteirc = world.networkobjects[netname]
|
|
newnick = normalizeNick(remoteirc, irc.name, args['newnick'], uid=user)
|
|
if remoteirc.users[user].nick != newnick:
|
|
remoteirc.proto.nick(user, newnick)
|
|
utils.add_hook(handle_nick, 'NICK')
|
|
|
|
def handle_part(irc, numeric, command, args):
|
|
channels = args['channels']
|
|
text = args['text']
|
|
# Don't allow the PyLink client PARTing to be relayed.
|
|
if numeric == irc.pseudoclient.uid:
|
|
return
|
|
for channel in channels:
|
|
for netname, user in relayusers[(irc.name, numeric)].copy().items():
|
|
remoteirc = world.networkobjects[netname]
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
if remotechan is None:
|
|
continue
|
|
remoteirc.proto.part(user, remotechan, text)
|
|
if not remoteirc.users[user].channels:
|
|
remoteirc.proto.quit(user, 'Left all shared channels.')
|
|
del relayusers[(irc.name, numeric)][remoteirc.name]
|
|
utils.add_hook(handle_part, 'PART')
|
|
|
|
def handle_messages(irc, numeric, command, args):
|
|
notice = (command in ('NOTICE', 'PYLINK_SELF_NOTICE'))
|
|
target = args['target']
|
|
text = args['text']
|
|
if irc.isInternalClient(numeric) and irc.isInternalClient(target):
|
|
# Drop attempted PMs between internal clients (this shouldn't happen,
|
|
# but whatever).
|
|
return
|
|
|
|
relay = getRelay((irc.name, target))
|
|
remoteusers = relayusers[(irc.name, numeric)]
|
|
|
|
# HACK: Don't break on sending to @#channel or similar. TODO: This should really
|
|
# be handled more neatly in core.
|
|
try:
|
|
prefix, target = target.split('#', 1)
|
|
except ValueError:
|
|
prefix = ''
|
|
else:
|
|
target = '#' + target
|
|
|
|
if utils.isChannel(target):
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
real_target = getRemoteChan(irc, remoteirc, target)
|
|
|
|
# Don't relay anything back to the source net, or to disconnected networks
|
|
# and networks without a relay for this channel.
|
|
if irc.name == name or (not remoteirc.connected.is_set()) or (not real_target) \
|
|
or (not irc.connected.is_set()):
|
|
continue
|
|
|
|
user = getRemoteUser(irc, remoteirc, numeric, spawnIfMissing=False)
|
|
|
|
if not user:
|
|
# No relay clone exists for the sender; route the message through our
|
|
# main client.
|
|
if numeric in irc.servers:
|
|
displayedname = irc.servers[numeric].name
|
|
else:
|
|
displayedname = irc.users[numeric].nick
|
|
|
|
real_text = '[from %s/%s] %s' % (displayedname, irc.name, text)
|
|
try:
|
|
user = remoteirc.pseudoclient.uid
|
|
except AttributeError:
|
|
# Remote main client hasn't spawned yet. Drop the message.
|
|
continue
|
|
else:
|
|
if remoteirc.pseudoclient.uid not in remoteirc.users:
|
|
# Remote UID is ghosted, drop message.
|
|
continue
|
|
|
|
else:
|
|
real_text = text
|
|
|
|
real_target = prefix + real_target
|
|
log.debug('(%s) relay.handle_messages: sending message to %s from %s on behalf of %s',
|
|
irc.name, real_target, user, numeric)
|
|
|
|
try:
|
|
if notice:
|
|
remoteirc.proto.notice(user, real_target, real_text)
|
|
else:
|
|
remoteirc.proto.message(user, real_target, real_text)
|
|
except LookupError:
|
|
# Our relay clone disappeared while we were trying to send the message.
|
|
# This is normally due to a nick conflict with the IRCd.
|
|
log.warning("(%s) relay: Relay client %s on %s was killed while "
|
|
"trying to send a message through it!", irc.name,
|
|
remoteirc.name, user)
|
|
continue
|
|
|
|
else:
|
|
# Get the real user that the PM was meant for
|
|
origuser = getOrigUser(irc, target)
|
|
if origuser is None: # Not a relay client, return
|
|
return
|
|
homenet, real_target = origuser
|
|
|
|
# For PMs, we must be on a common channel with the target.
|
|
# Otherwise, the sender doesn't have a client representing them
|
|
# on the remote network, and we won't have anything to send our
|
|
# messages from.
|
|
if homenet not in remoteusers.keys():
|
|
irc.msg(numeric, 'Error: You must be in a common channel '
|
|
'with %r in order to send messages.' % \
|
|
irc.users[target].nick, notice=True)
|
|
return
|
|
remoteirc = world.networkobjects[homenet]
|
|
user = getRemoteUser(irc, remoteirc, numeric, spawnIfMissing=False)
|
|
|
|
try:
|
|
if notice:
|
|
remoteirc.proto.notice(user, real_target, text)
|
|
else:
|
|
remoteirc.proto.message(user, real_target, text)
|
|
except LookupError:
|
|
# Our relay clone disappeared while we were trying to send the message.
|
|
# This is normally due to a nick conflict with the IRCd.
|
|
log.warning("(%s) relay: Relay client %s on %s was killed while "
|
|
"trying to send a message through it!", irc.name,
|
|
remoteirc.name, user)
|
|
return
|
|
|
|
for cmd in ('PRIVMSG', 'NOTICE', 'PYLINK_SELF_NOTICE', 'PYLINK_SELF_PRIVMSG'):
|
|
utils.add_hook(handle_messages, cmd)
|
|
|
|
def handle_kick(irc, source, command, args):
|
|
channel = args['channel']
|
|
target = args['target']
|
|
text = args['text']
|
|
kicker = source
|
|
relay = getRelay((irc.name, channel))
|
|
|
|
# Don't relay kicks to protected service bots.
|
|
if relay is None or irc.isServiceBot(target):
|
|
return
|
|
|
|
origuser = getOrigUser(irc, target)
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
if irc.name == name or not remoteirc.connected.is_set():
|
|
continue
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
log.debug('(%s) relay.handle_kick: remotechan for %s on %s is %s', irc.name, channel, name, remotechan)
|
|
if remotechan is None:
|
|
continue
|
|
real_kicker = getRemoteUser(irc, remoteirc, kicker, spawnIfMissing=False)
|
|
log.debug('(%s) relay.handle_kick: real kicker for %s on %s is %s', irc.name, kicker, name, real_kicker)
|
|
if not isRelayClient(irc, target):
|
|
log.debug('(%s) relay.handle_kick: target %s is NOT an internal client', irc.name, target)
|
|
# Both the target and kicker are external clients; i.e.
|
|
# they originate from the same network. We won't have
|
|
# to filter this; the uplink IRCd will handle it appropriately,
|
|
# and we'll just follow.
|
|
real_target = getRemoteUser(irc, remoteirc, target, spawnIfMissing=False)
|
|
log.debug('(%s) relay.handle_kick: real target for %s is %s', irc.name, target, real_target)
|
|
else:
|
|
log.debug('(%s) relay.handle_kick: target %s is an internal client, going to look up the real user', irc.name, target)
|
|
real_target = getOrigUser(irc, target, targetirc=remoteirc)
|
|
if not checkClaim(irc, channel, kicker):
|
|
log.debug('(%s) relay.handle_kick: kicker %s is not opped... We should rejoin the target user %s', irc.name, kicker, real_target)
|
|
# Home network is not in the channel's claim AND the kicker is not
|
|
# opped. We won't propograte the kick then.
|
|
# TODO: make the check slightly more advanced: i.e. halfops can't
|
|
# kick ops, admins can't kick owners, etc.
|
|
modes = getPrefixModes(remoteirc, irc, remotechan, real_target)
|
|
# Join the kicked client back with its respective modes.
|
|
irc.proto.sjoin(irc.sid, channel, [(modes, target)])
|
|
if kicker in irc.users:
|
|
log.info('(%s) relay: Blocked KICK (reason %r) from %s/%s to relay client %s/%s on %s.',
|
|
irc.name, args['text'], irc.users[source].nick, irc.name,
|
|
remoteirc.users[real_target].nick, remoteirc.name, channel)
|
|
irc.msg(kicker, "This channel is claimed; your kick to "
|
|
"%s has been blocked because you are not "
|
|
"(half)opped." % channel, notice=True)
|
|
else:
|
|
log.info('(%s) relay: Blocked KICK (reason %r) from server %s to relay client %s/%s on %s.',
|
|
irc.name, args['text'], irc.servers[source].name,
|
|
remoteirc.users[real_target].nick, remoteirc.name, channel)
|
|
return
|
|
|
|
if not real_target:
|
|
continue
|
|
# Propogate the kick!
|
|
if real_kicker:
|
|
log.debug('(%s) relay.handle_kick: Kicking %s from channel %s via %s on behalf of %s/%s', irc.name, real_target, remotechan,real_kicker, kicker, irc.name)
|
|
remoteirc.proto.kick(real_kicker, remotechan, real_target, args['text'])
|
|
else:
|
|
# Kick originated from a server, or the kicker isn't in any
|
|
# common channels with the target relay network.
|
|
rsid = getRemoteSid(remoteirc, irc)
|
|
log.debug('(%s) relay.handle_kick: Kicking %s from channel %s via %s on behalf of %s/%s', irc.name, real_target, remotechan, rsid, kicker, irc.name)
|
|
try:
|
|
if kicker in irc.servers:
|
|
kname = irc.servers[kicker].name
|
|
else:
|
|
kname = irc.users.get(kicker).nick
|
|
text = "(%s/%s) %s" % (kname, irc.name, args['text'])
|
|
except AttributeError:
|
|
text = "(<unknown kicker>@%s) %s" % (irc.name, args['text'])
|
|
remoteirc.proto.kick(rsid, remotechan, real_target, text)
|
|
|
|
# If the target isn't on any channels, quit them.
|
|
if remoteirc != irc and (not remoteirc.users[real_target].channels) and not origuser:
|
|
del relayusers[(irc.name, target)][remoteirc.name]
|
|
remoteirc.proto.quit(real_target, 'Left all shared channels.')
|
|
|
|
if origuser and not irc.users[target].channels:
|
|
del relayusers[origuser][irc.name]
|
|
irc.proto.quit(target, 'Left all shared channels.')
|
|
|
|
utils.add_hook(handle_kick, 'KICK')
|
|
|
|
def handle_chgclient(irc, source, command, args):
|
|
target = args['target']
|
|
if args.get('newhost'):
|
|
field = 'HOST'
|
|
text = args['newhost']
|
|
elif args.get('newident'):
|
|
field = 'IDENT'
|
|
text = args['newident']
|
|
elif args.get('newgecos'):
|
|
field = 'GECOS'
|
|
text = args['newgecos']
|
|
if field:
|
|
for netname, user in relayusers[(irc.name, target)].items():
|
|
remoteirc = world.networkobjects[netname]
|
|
try:
|
|
if field == 'HOST':
|
|
text = normalizeHost(remoteirc, text)
|
|
remoteirc.proto.updateClient(user, field, text)
|
|
except NotImplementedError: # IRCd doesn't support changing the field we want
|
|
log.debug('(%s) relay.handle_chgclient: Ignoring changing field %r of %s on %s (for %s/%s);'
|
|
' remote IRCd doesn\'t support it', irc.name, field,
|
|
user, netname, target, irc.name)
|
|
continue
|
|
|
|
for c in ('CHGHOST', 'CHGNAME', 'CHGIDENT'):
|
|
utils.add_hook(handle_chgclient, c)
|
|
|
|
def handle_mode(irc, numeric, command, args):
|
|
target = args['target']
|
|
modes = args['modes']
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
if irc.name == name or not remoteirc.connected.is_set():
|
|
continue
|
|
|
|
if utils.isChannel(target):
|
|
# Use the old state of the channel to check for CLAIM access.
|
|
oldchan = args.get('oldchan')
|
|
|
|
if checkClaim(irc, target, numeric, chanobj=oldchan):
|
|
remotechan = getRemoteChan(irc, remoteirc, target)
|
|
supported_modes = getSupportedCmodes(irc, remoteirc, target, modes)
|
|
if supported_modes:
|
|
# Check if the sender is a user with a relay client; otherwise relay the mode
|
|
# from the corresponding server.
|
|
u = getRemoteUser(irc, remoteirc, numeric, spawnIfMissing=False)
|
|
if u:
|
|
remoteirc.proto.mode(u, remotechan, supported_modes)
|
|
else:
|
|
rsid = getRemoteSid(remoteirc, irc)
|
|
remoteirc.proto.mode(rsid, remotechan, supported_modes)
|
|
else: # Mode change blocked by CLAIM.
|
|
reversed_modes = irc.reverseModes(target, modes, oldobj=oldchan)
|
|
log.debug('(%s) relay.handle_mode: Reversing mode changes of %r with %r (CLAIM).',
|
|
irc.name, modes, reversed_modes)
|
|
if reversed_modes:
|
|
irc.proto.mode(irc.sid, target, reversed_modes)
|
|
break
|
|
|
|
else:
|
|
# Set hideoper on remote opers, to prevent inflating
|
|
# /lusers and various /stats
|
|
hideoper_mode = remoteirc.umodes.get('hideoper')
|
|
modes = getSupportedUmodes(irc, remoteirc, modes)
|
|
|
|
if hideoper_mode:
|
|
if ('+o', None) in modes:
|
|
modes.append(('+%s' % hideoper_mode, None))
|
|
elif ('-o', None) in modes:
|
|
modes.append(('-%s' % hideoper_mode, None))
|
|
|
|
remoteuser = getRemoteUser(irc, remoteirc, target, spawnIfMissing=False)
|
|
|
|
if remoteuser and modes:
|
|
remoteirc.proto.mode(remoteuser, remoteuser, modes)
|
|
|
|
utils.add_hook(handle_mode, 'MODE')
|
|
|
|
def handle_topic(irc, numeric, command, args):
|
|
channel = args['channel']
|
|
oldtopic = args.get('oldtopic')
|
|
topic = args['text']
|
|
if checkClaim(irc, channel, numeric):
|
|
for name, remoteirc in world.networkobjects.copy().items():
|
|
if irc.name == name or not remoteirc.connected.is_set():
|
|
continue
|
|
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
# Don't send if the remote topic is the same as ours.
|
|
if remotechan is None or topic == remoteirc.channels[remotechan].topic:
|
|
continue
|
|
# This might originate from a server too.
|
|
remoteuser = getRemoteUser(irc, remoteirc, numeric, spawnIfMissing=False)
|
|
if remoteuser:
|
|
remoteirc.proto.topic(remoteuser, remotechan, topic)
|
|
else:
|
|
rsid = getRemoteSid(remoteirc, irc)
|
|
remoteirc.proto.topicBurst(rsid, remotechan, topic)
|
|
elif oldtopic: # Topic change blocked by claim.
|
|
irc.proto.topicBurst(irc.sid, channel, oldtopic)
|
|
|
|
utils.add_hook(handle_topic, 'TOPIC')
|
|
|
|
def handle_kill(irc, numeric, command, args):
|
|
target = args['target']
|
|
userdata = args['userdata']
|
|
|
|
# Try to find the original client of the target being killed
|
|
if userdata and hasattr(userdata, 'remote'):
|
|
realuser = userdata.remote
|
|
else:
|
|
realuser = getOrigUser(irc, target)
|
|
|
|
log.debug('(%s) relay.handle_kill: realuser is %r', irc.name, realuser)
|
|
|
|
# Target user was remote:
|
|
if realuser and realuser[0] != irc.name:
|
|
# We don't allow killing over the relay, so we must respawn the affected
|
|
# client and rejoin it to its channels.
|
|
del relayusers[realuser][irc.name]
|
|
remoteirc = world.networkobjects[realuser[0]]
|
|
for remotechan in remoteirc.users[realuser[1]].channels:
|
|
localchan = getRemoteChan(remoteirc, irc, remotechan)
|
|
if localchan:
|
|
modes = getPrefixModes(remoteirc, irc, remotechan, realuser[1])
|
|
log.debug('(%s) relay.handle_kill: userpair: %s, %s', irc.name, modes, realuser)
|
|
client = getRemoteUser(remoteirc, irc, realuser[1])
|
|
irc.proto.sjoin(getRemoteSid(irc, remoteirc), localchan, [(modes, client)])
|
|
|
|
if userdata and numeric in irc.users:
|
|
log.info('(%s) relay.handle_kill: Blocked KILL (reason %r) from %s to relay client %s/%s.',
|
|
irc.name, args['text'], irc.users[numeric].nick,
|
|
remoteirc.users[realuser[1]].nick, realuser[0])
|
|
irc.msg(numeric, "Your kill to %s has been blocked "
|
|
"because PyLink does not allow killing"
|
|
" users over the relay at this time." % \
|
|
userdata.nick, notice=True)
|
|
else:
|
|
log.info('(%s) relay.handle_kill: Blocked KILL (reason %r) from server %s to relay client %s/%s.',
|
|
irc.name, args['text'], irc.servers[numeric].name,
|
|
remoteirc.users[realuser[1]].nick, realuser[0])
|
|
|
|
# Target user was local.
|
|
else:
|
|
# IMPORTANT: some IRCds (charybdis) don't send explicit QUIT messages
|
|
# for locally killed clients, while others (inspircd) do!
|
|
# If we receive a user object in 'userdata' instead of None, it means
|
|
# that the KILL hasn't been handled by a preceding QUIT message.
|
|
if userdata:
|
|
handle_quit(irc, target, 'KILL', {'text': args['text']})
|
|
|
|
utils.add_hook(handle_kill, 'KILL')
|
|
|
|
def handle_away(irc, numeric, command, args):
|
|
for netname, user in relayusers[(irc.name, numeric)].items():
|
|
remoteirc = world.networkobjects[netname]
|
|
remoteirc.proto.away(user, args['text'])
|
|
utils.add_hook(handle_away, 'AWAY')
|
|
|
|
def handle_invite(irc, source, command, args):
|
|
target = args['target']
|
|
channel = args['channel']
|
|
if isRelayClient(irc, target):
|
|
remotenet, remoteuser = getOrigUser(irc, target)
|
|
remoteirc = world.networkobjects[remotenet]
|
|
remotechan = getRemoteChan(irc, remoteirc, channel)
|
|
remotesource = getRemoteUser(irc, remoteirc, source, spawnIfMissing=False)
|
|
if remotesource is None:
|
|
irc.msg(source, 'Error: You must be in a common channel '
|
|
'with %s to invite them to channels.' % \
|
|
irc.users[target].nick,
|
|
notice=True)
|
|
elif remotechan is None:
|
|
irc.msg(source, 'Error: You cannot invite someone to a '
|
|
'channel not on their network!',
|
|
notice=True)
|
|
else:
|
|
remoteirc.proto.invite(remotesource, remoteuser,
|
|
remotechan)
|
|
utils.add_hook(handle_invite, 'INVITE')
|
|
|
|
def handle_endburst(irc, numeric, command, args):
|
|
if numeric == irc.uplink:
|
|
initializeAll(irc)
|
|
utils.add_hook(handle_endburst, "ENDBURST")
|
|
|
|
def handle_disconnect(irc, numeric, command, args):
|
|
"""Handles IRC network disconnections (internal hook)."""
|
|
# Quit all of our users' representations on other nets, and remove
|
|
# them from our relay clients index.
|
|
log.debug('(%s) Grabbing spawnlocks[%s]', irc.name, irc.name)
|
|
if spawnlocks[irc.name].acquire(5):
|
|
for k, v in relayusers.copy().items():
|
|
if irc.name in v:
|
|
del relayusers[k][irc.name]
|
|
if k[0] == irc.name:
|
|
del relayusers[k]
|
|
spawnlocks[irc.name].release()
|
|
|
|
# SQUIT all relay pseudoservers spawned for us, and remove them
|
|
# from our relay subservers index.
|
|
log.debug('(%s) Grabbing spawnlocks_servers[%s]', irc.name, irc.name)
|
|
if spawnlocks_servers[irc.name].acquire(5):
|
|
for name, ircobj in world.networkobjects.copy().items():
|
|
if name != irc.name:
|
|
try:
|
|
rsid = relayservers[name][irc.name]
|
|
except KeyError:
|
|
continue
|
|
else:
|
|
ircobj.proto.squit(ircobj.sid, rsid, text='Relay network lost connection.')
|
|
|
|
if irc.name in relayservers[name]:
|
|
del relayservers[name][irc.name]
|
|
|
|
try:
|
|
del relayservers[irc.name]
|
|
except KeyError: # Already removed; ignore.
|
|
pass
|
|
|
|
spawnlocks_servers[irc.name].release()
|
|
|
|
utils.add_hook(handle_disconnect, "PYLINK_DISCONNECT")
|
|
|
|
def handle_save(irc, numeric, command, args):
|
|
target = args['target']
|
|
realuser = getOrigUser(irc, target)
|
|
log.debug('(%s) relay.handle_save: %r got in a nick collision! Real user: %r',
|
|
irc.name, target, realuser)
|
|
if isRelayClient(irc, target) and realuser:
|
|
# Nick collision!
|
|
# It's one of our relay clients; try to fix our nick to the next
|
|
# available normalized nick.
|
|
remotenet, remoteuser = realuser
|
|
remoteirc = world.networkobjects[remotenet]
|
|
nick = remoteirc.users[remoteuser].nick
|
|
|
|
newnick = normalizeNick(irc, remotenet, nick)
|
|
log.info('(%s) relay.handle_save: SAVE received for relay client %r (%s), fixing nick to %s',
|
|
irc.name, target, nick, newnick)
|
|
irc.proto.nick(target, newnick)
|
|
else:
|
|
# Somebody else on the network (not a PyLink client) had a nick collision;
|
|
# relay this as a nick change appropriately.
|
|
handle_nick(irc, target, 'SAVE', {'oldnick': None, 'newnick': target})
|
|
|
|
utils.add_hook(handle_save, "SAVE")
|
|
|
|
### PUBLIC COMMANDS
|
|
|
|
def create(irc, source, args):
|
|
"""<channel>
|
|
|
|
Opens up the given channel over PyLink Relay."""
|
|
try:
|
|
channel = irc.toLower(args[0])
|
|
except IndexError:
|
|
irc.reply("Error: Not enough arguments. Needs 1: channel.")
|
|
return
|
|
if not utils.isChannel(channel):
|
|
irc.reply('Error: Invalid channel %r.' % channel)
|
|
return
|
|
if source not in irc.channels[channel].users:
|
|
irc.reply('Error: You must be in %r to complete this operation.' % channel)
|
|
return
|
|
irc.checkAuthenticated(source)
|
|
|
|
# Check to see whether the channel requested is already part of a different
|
|
# relay.
|
|
localentry = getRelay((irc.name, channel))
|
|
if localentry:
|
|
irc.reply('Error: Channel %r is already part of a relay.' % channel)
|
|
return
|
|
|
|
creator = irc.getHostmask(source)
|
|
# Create the relay database entry with the (network name, channel name)
|
|
# pair - this is just a dict with various keys.
|
|
db[(irc.name, channel)] = {'claim': [irc.name], 'links': set(),
|
|
'blocked_nets': set(), 'creator': creator,
|
|
'ts': time.time()}
|
|
log.info('(%s) relay: Channel %s created by %s.', irc.name, channel, creator)
|
|
initializeChannel(irc, channel)
|
|
irc.reply('Done.')
|
|
create = utils.add_cmd(create, featured=True)
|
|
|
|
def destroy(irc, source, args):
|
|
"""[<home network>] <channel>
|
|
|
|
Removes the given channel from the PyLink Relay, delinking all networks linked to it. If the home network is given and you are logged in as admin, this can also remove relay channels from other networks."""
|
|
try: # Two args were given: first one is network name, second is channel.
|
|
channel = irc.toLower(args[1])
|
|
network = args[0]
|
|
except IndexError:
|
|
try: # One argument was given; assume it's just the channel.
|
|
channel = irc.toLower(args[0])
|
|
network = irc.name
|
|
except IndexError:
|
|
irc.reply("Error: Not enough arguments. Needs 1-2: channel, network (optional).")
|
|
return
|
|
|
|
if not utils.isChannel(channel):
|
|
irc.reply('Error: Invalid channel %r.' % channel)
|
|
return
|
|
|
|
if network == irc.name:
|
|
# If we're destroying a channel on the current network, only oper is needed.
|
|
irc.checkAuthenticated(source)
|
|
else:
|
|
# Otherwise, we'll need to be logged in as admin.
|
|
irc.checkAuthenticated(source, allowOper=False)
|
|
|
|
entry = (network, channel)
|
|
|
|
if entry in db:
|
|
# Iterate over all the channel links and deinitialize them.
|
|
for link in db[entry]['links']:
|
|
removeChannel(world.networkobjects.get(link[0]), link[1])
|
|
removeChannel(world.networkobjects.get(network), channel)
|
|
|
|
del db[entry]
|
|
log.info('(%s) relay: Channel %s destroyed by %s.', irc.name,
|
|
channel, irc.getHostmask(source))
|
|
irc.reply('Done.')
|
|
else:
|
|
irc.reply("Error: No such channel %r exists. If you're trying to delink a channel from "
|
|
"another network, use the DESTROY command." % channel)
|
|
return
|
|
destroy = utils.add_cmd(destroy, featured=True)
|
|
|
|
def link(irc, source, args):
|
|
"""<remotenet> <channel> <local channel>
|
|
|
|
Links the specified channel on \x02remotenet\x02 over PyLink Relay as \x02local channel\x02.
|
|
If \x02local channel\x02 is not specified, it defaults to the same name as \x02channel\x02."""
|
|
try:
|
|
channel = irc.toLower(args[1])
|
|
remotenet = args[0]
|
|
except IndexError:
|
|
irc.reply("Error: Not enough arguments. Needs 2-3: remote netname, channel, local channel name (optional).")
|
|
return
|
|
|
|
try:
|
|
localchan = irc.toLower(args[2])
|
|
except IndexError:
|
|
localchan = channel
|
|
|
|
for c in (channel, localchan):
|
|
if not utils.isChannel(c):
|
|
irc.reply('Error: Invalid channel %r.' % c)
|
|
return
|
|
|
|
if remotenet == irc.name:
|
|
irc.reply('Error: Cannot link two channels on the same network.')
|
|
return
|
|
|
|
if source not in irc.channels[localchan].users:
|
|
irc.reply('Error: You must be in %r to complete this operation.' % localchan)
|
|
return
|
|
|
|
irc.checkAuthenticated(source)
|
|
|
|
if remotenet not in world.networkobjects:
|
|
irc.reply('Error: No network named %r exists.' % remotenet)
|
|
return
|
|
localentry = getRelay((irc.name, localchan))
|
|
|
|
if localentry:
|
|
irc.reply('Error: Channel %r is already part of a relay.' % localchan)
|
|
return
|
|
|
|
try:
|
|
entry = db[(remotenet, channel)]
|
|
except KeyError:
|
|
irc.reply('Error: No such relay %r exists.' % channel)
|
|
return
|
|
else:
|
|
if irc.name in entry['blocked_nets']:
|
|
irc.reply('Error: Access denied (target channel is not open to links).')
|
|
return
|
|
for link in entry['links']:
|
|
if link[0] == irc.name:
|
|
irc.reply("Error: Remote channel '%s%s' is already linked here "
|
|
"as %r." % (remotenet, channel, link[1]))
|
|
return
|
|
entry['links'].add((irc.name, localchan))
|
|
log.info('(%s) relay: Channel %s linked to %s%s by %s.', irc.name,
|
|
localchan, remotenet, channel, irc.getHostmask(source))
|
|
initializeChannel(irc, localchan)
|
|
irc.reply('Done.')
|
|
link = utils.add_cmd(link, featured=True)
|
|
|
|
def delink(irc, source, args):
|
|
"""<local channel> [<network>]
|
|
|
|
Delinks the given channel from PyLink Relay. \x02network\x02 must and can only be specified if you are on the host network for the channel given, and allows you to pick which network to delink.
|
|
To remove a relay channel entirely, use the 'destroy' command instead."""
|
|
try:
|
|
channel = irc.toLower(args[0])
|
|
except IndexError:
|
|
irc.reply("Error: Not enough arguments. Needs 1-2: channel, remote netname (optional).")
|
|
return
|
|
try:
|
|
remotenet = args[1]
|
|
except IndexError:
|
|
remotenet = None
|
|
irc.checkAuthenticated(source)
|
|
if not utils.isChannel(channel):
|
|
irc.reply('Error: Invalid channel %r.' % channel)
|
|
return
|
|
entry = getRelay((irc.name, channel))
|
|
if entry:
|
|
if entry[0] == irc.name: # We own this channel.
|
|
if not remotenet:
|
|
irc.reply("Error: You must select a network to "
|
|
"delink, or use the 'destroy' command to remove "
|
|
"this relay entirely (it was created on the current "
|
|
"network).")
|
|
return
|
|
else:
|
|
for link in db[entry]['links'].copy():
|
|
if link[0] == remotenet:
|
|
removeChannel(world.networkobjects.get(remotenet), link[1])
|
|
db[entry]['links'].remove(link)
|
|
else:
|
|
removeChannel(irc, channel)
|
|
db[entry]['links'].remove((irc.name, channel))
|
|
irc.reply('Done.')
|
|
log.info('(%s) relay: Channel %s delinked from %s%s by %s.', irc.name,
|
|
channel, entry[0], entry[1], irc.getHostmask(source))
|
|
else:
|
|
irc.reply('Error: No such relay %r.' % channel)
|
|
delink = utils.add_cmd(delink, featured=True)
|
|
|
|
def linked(irc, source, args):
|
|
"""[<network>]
|
|
|
|
Returns a list of channels shared across PyLink Relay. If \x02network\x02 is given, filters output to channels linked to the given network."""
|
|
|
|
# Only show remote networks that are marked as connected.
|
|
remote_networks = [netname for netname, ircobj in world.networkobjects.copy().items()
|
|
if ircobj.connected.is_set()]
|
|
|
|
# But remove the current network from the list, so that it isn't shown twice.
|
|
remote_networks.remove(irc.name)
|
|
|
|
remote_networks.sort()
|
|
|
|
s = 'Connected networks: \x02%s\x02 %s' % (irc.name, ' '.join(remote_networks))
|
|
# Always reply in private to prevent floods.
|
|
irc.reply(s, private=True)
|
|
|
|
net = ''
|
|
try:
|
|
net = args[0]
|
|
except:
|
|
pass
|
|
else:
|
|
irc.reply("Showing channels linked to %s:" % net, private=True)
|
|
|
|
# Sort the list of shared channels when displaying
|
|
for k, v in sorted(db.items()):
|
|
|
|
# Skip if we're filtering by network and the network given isn't relayed
|
|
# to the channel.
|
|
if net and not (net == k[0] or net in [link[0] for link in v['links']]):
|
|
continue
|
|
|
|
# Bold each network/channel name pair
|
|
s = '\x02%s%s\x02 ' % k
|
|
remoteirc = world.networkobjects.get(k[0])
|
|
channel = k[1] # Get the channel name from the network/channel pair
|
|
|
|
if remoteirc and channel in remoteirc.channels:
|
|
c = remoteirc.channels[channel]
|
|
if ('s', None) in c.modes or ('p', None) in c.modes:
|
|
# Only show secret channels to opers, and tag them with
|
|
# [secret].
|
|
if irc.isOper(source):
|
|
s += '\x02[secret]\x02 '
|
|
else:
|
|
continue
|
|
|
|
if v['links']:
|
|
# Sort, join up and output all the linked channel names. Silently drop
|
|
# entries for disconnected networks.
|
|
s += ' '.join([''.join(link) for link in sorted(v['links']) if link[0] in world.networkobjects
|
|
and world.networkobjects[link[0]].connected.is_set()])
|
|
|
|
else: # Unless it's empty; then, well... just say no relays yet.
|
|
s += '(no relays yet)'
|
|
|
|
irc.reply(s, private=True)
|
|
|
|
if irc.isOper(source):
|
|
s = ''
|
|
|
|
# If the caller is an oper, we can show the hostmasks of people
|
|
# that created all the available channels (Janus does this too!!)
|
|
creator = v.get('creator')
|
|
if creator:
|
|
# But only if the value actually exists (old DBs will have it
|
|
# missing).
|
|
s += ' by \x02%s\x02' % creator
|
|
|
|
# Ditto for creation date
|
|
ts = v.get('ts')
|
|
if ts:
|
|
s += ' on %s' % time.ctime(ts)
|
|
|
|
if s: # Indent to make the list look nicer
|
|
irc.reply(' Channel created%s.' % s, private=True)
|
|
linked = utils.add_cmd(linked, featured=True)
|
|
|
|
@utils.add_cmd
|
|
def linkacl(irc, source, args):
|
|
"""ALLOW|DENY|LIST <channel> <remotenet>
|
|
|
|
Allows blocking / unblocking certain networks from linking to a relayed channel, based on a blacklist.
|
|
LINKACL LIST returns a list of blocked networks for a channel, while the ALLOW and DENY subcommands allow manipulating this blacklist."""
|
|
missingargs = "Error: Not enough arguments. Needs 2-3: subcommand (ALLOW/DENY/LIST), channel, remote network (for ALLOW/DENY)."
|
|
irc.checkAuthenticated(source)
|
|
try:
|
|
cmd = args[0].lower()
|
|
channel = irc.toLower(args[1])
|
|
except IndexError:
|
|
irc.reply(missingargs)
|
|
return
|
|
if not utils.isChannel(channel):
|
|
irc.reply('Error: Invalid channel %r.' % channel)
|
|
return
|
|
relay = getRelay((irc.name, channel))
|
|
if not relay:
|
|
irc.reply('Error: No such relay %r exists.' % channel)
|
|
return
|
|
if cmd == 'list':
|
|
s = 'Blocked networks for \x02%s\x02: \x02%s\x02' % (channel, ', '.join(db[relay]['blocked_nets']) or '(empty)')
|
|
irc.reply(s)
|
|
return
|
|
|
|
try:
|
|
remotenet = args[2]
|
|
except IndexError:
|
|
irc.reply(missingargs)
|
|
return
|
|
if cmd == 'deny':
|
|
db[relay]['blocked_nets'].add(remotenet)
|
|
irc.reply('Done.')
|
|
elif cmd == 'allow':
|
|
try:
|
|
db[relay]['blocked_nets'].remove(remotenet)
|
|
except KeyError:
|
|
irc.reply('Error: Network %r is not on the blacklist for %r.' % (remotenet, channel))
|
|
else:
|
|
irc.reply('Done.')
|
|
else:
|
|
irc.reply('Error: Unknown subcommand %r: valid ones are ALLOW, DENY, and LIST.' % cmd)
|
|
|
|
@utils.add_cmd
|
|
def showuser(irc, source, args):
|
|
"""<user>
|
|
|
|
Shows relay data about the given user. This supplements the 'showuser' command in the 'commands' plugin, which provides more general information."""
|
|
try:
|
|
target = args[0]
|
|
except IndexError:
|
|
# No errors here; showuser from the commands plugin already does this
|
|
# for us.
|
|
return
|
|
u = irc.nickToUid(target)
|
|
if u:
|
|
irc.reply("Showing relay information on user \x02%s\x02:" % irc.users[u].nick, private=True)
|
|
try:
|
|
userpair = getOrigUser(irc, u) or (irc.name, u)
|
|
remoteusers = relayusers[userpair].items()
|
|
except KeyError:
|
|
pass
|
|
else:
|
|
nicks = []
|
|
if remoteusers:
|
|
nicks.append('%s:\x02%s\x02' % (userpair[0],
|
|
world.networkobjects[userpair[0]].users[userpair[1]].nick))
|
|
for r in remoteusers:
|
|
remotenet, remoteuser = r
|
|
remoteirc = world.networkobjects[remotenet]
|
|
nicks.append('%s:\x02%s\x02' % (remotenet, remoteirc.users[remoteuser].nick))
|
|
irc.reply("\x02Relay nicks\x02: %s" % ', '.join(nicks), private=True)
|
|
relaychannels = []
|
|
for ch in irc.users[u].channels:
|
|
relay = getRelay((irc.name, ch))
|
|
if relay:
|
|
relaychannels.append(''.join(relay))
|
|
if relaychannels and (irc.isOper(source) or u == source):
|
|
irc.reply("\x02Relay channels\x02: %s" % ' '.join(relaychannels), private=True)
|
|
|
|
@utils.add_cmd
|
|
def save(irc, source, args):
|
|
"""takes no arguments.
|
|
|
|
Saves the relay database to disk."""
|
|
irc.checkAuthenticated(source)
|
|
exportDB()
|
|
irc.reply('Done.')
|
|
|
|
@utils.add_cmd
|
|
def claim(irc, source, args):
|
|
"""<channel> [<comma separated list of networks>]
|
|
|
|
Sets the CLAIM for a channel to a case-sensitive list of networks. If no list of networks is given, shows which networks have claim over the channel. A single hyphen (-) can also be given as a list of networks to remove claim from the channel entirely.
|
|
|
|
CLAIM is a way of enforcing network ownership for a channel, similarly to Janus. Unless the list is empty, only networks on the CLAIM list for a channel (plus the creating network) are allowed to override kicks, mode changes, and topic changes in it - attempts from other networks' opers to do this are simply blocked or reverted."""
|
|
irc.checkAuthenticated(source)
|
|
try:
|
|
channel = irc.toLower(args[0])
|
|
except IndexError:
|
|
irc.reply("Error: Not enough arguments. Needs 1-2: channel, list of networks (optional).")
|
|
return
|
|
|
|
# We override getRelay() here to limit the search to the current network.
|
|
relay = (irc.name, channel)
|
|
if relay not in db:
|
|
irc.reply('Error: No such relay %r exists.' % channel)
|
|
return
|
|
claimed = db[relay]["claim"]
|
|
try:
|
|
nets = args[1].strip()
|
|
except IndexError: # No networks given.
|
|
irc.reply('Channel \x02%s\x02 is claimed by: %s' %
|
|
(channel, ', '.join(claimed) or '\x1D(none)\x1D'))
|
|
else:
|
|
if nets == '-' or not nets:
|
|
claimed = set()
|
|
else:
|
|
claimed = set(nets.split(','))
|
|
db[relay]["claim"] = claimed
|
|
irc.reply('CLAIM for channel \x02%s\x02 set to: %s' %
|
|
(channel, ', '.join(claimed) or '\x1D(none)\x1D'))
|