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https://github.com/jlu5/PyLink.git
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relay: move claim enforcement routines outside the mode/kick loops
This prevents claim responses from being sent multiple times.
This commit is contained in:
James Lu
parent
59c12ff354
commit
b2270ca3eb
183
plugins/relay.py
183
plugins/relay.py
@ -1483,30 +1483,6 @@ def handle_kick(irc, source, command, args):
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log.debug('(%s) relay.handle_kick: target %s is an internal client, going to look up the real user', irc.name, target)
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real_target = get_orig_user(irc, target, targetirc=remoteirc)
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if not check_claim(irc, channel, kicker):
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log.debug('(%s) relay.handle_kick: kicker %s is not opped... We should rejoin the target user %s', irc.name, kicker, real_target)
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# Home network is not in the channel's claim AND the kicker is not
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# opped. We won't propograte the kick then.
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# TODO: make the check slightly more advanced: i.e. halfops can't
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# kick ops, admins can't kick owners, etc.
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modes = get_prefix_modes(remoteirc, irc, remotechan, real_target)
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# Join the kicked client back with its respective modes.
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irc.sjoin(irc.sid, channel, [(modes, target)])
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if kicker in irc.users:
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log.info('(%s) relay: Blocked KICK (reason %r) from %s/%s to relay client %s on %s.',
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irc.name, args['text'], irc.users[source].nick, irc.name,
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remoteirc.users[real_target].nick, channel)
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irc.msg(kicker, "This channel is claimed; your kick to "
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"%s has been blocked because you are not "
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"(half)opped." % channel, notice=True)
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else:
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log.info('(%s) relay: Blocked KICK (reason %r) from server %s to relay client %s/%s on %s.',
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irc.name, args['text'], irc.servers[source].name,
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remoteirc.users[real_target].nick, remoteirc.name, channel)
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return
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if not real_target:
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return
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@ -1541,6 +1517,35 @@ def handle_kick(irc, source, command, args):
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del relayusers[(irc.name, target)][remoteirc.name]
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remoteirc.quit(real_target, 'Left all shared channels.')
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if not check_claim(irc, channel, kicker):
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homenet, real_target = get_orig_user(irc, target)
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homeirc = world.networkobjects.get(homenet)
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homenick = homeirc.users[real_target].nick if homeirc else '<ghost user>'
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homechan = get_remote_channel(irc, homeirc, channel)
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log.debug('(%s) relay.handle_kick: kicker %s is not opped... We should rejoin the target user %s', irc.name, kicker, real_target)
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# Home network is not in the channel's claim AND the kicker is not
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# opped. We won't propograte the kick then.
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# TODO: make the check slightly more advanced: i.e. halfops can't
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# kick ops, admins can't kick owners, etc.
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modes = get_prefix_modes(homeirc, irc, homechan, real_target)
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# Join the kicked client back with its respective modes.
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irc.sjoin(irc.sid, channel, [(modes, target)])
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if kicker in irc.users:
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log.info('(%s) relay: Blocked KICK (reason %r) from %s/%s to %s/%s on %s.',
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irc.name, args['text'], irc.users[source].nick, irc.name,
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homenick, homenet, channel)
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irc.msg(kicker, "This channel is claimed; your kick to "
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"%s has been blocked because you are not "
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"(half)opped." % channel, notice=True)
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else:
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log.info('(%s) relay: Blocked KICK (reason %r) from server %s to %s/%s on %s.',
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irc.name, args['text'], irc.servers[source].name ,
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homenick, homenet, channel)
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return
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iterate_all(irc, _handle_kick_loop, extra_args=(source, command, args))
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if origuser and not irc.users[target].channels:
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@ -1582,72 +1587,47 @@ def _is_uline(irc, client):
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return irc.get_friendly_name(irc.get_server(client)) in irc.serverdata.get('ulines', [])
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def handle_mode(irc, numeric, command, args):
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target = args['target']
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modes = args['modes']
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def _handle_mode_loop(irc, remoteirc, numeric, command, args):
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target = args['target']
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modes = args['modes']
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if irc.is_channel(target):
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# Use the old state of the channel to check for CLAIM access.
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oldchan = args.get('channeldata')
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if check_claim(irc, target, numeric, chanobj=oldchan):
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remotechan = get_remote_channel(irc, remoteirc, target)
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if not remotechan:
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return
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supported_modes = get_supported_cmodes(irc, remoteirc, target, modes)
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# Check if the sender is a user with a relay client; otherwise relay the mode
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# from the corresponding server.
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remotesender = get_remote_user(irc, remoteirc, numeric, spawn_if_missing=False) or \
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get_relay_server_sid(remoteirc, irc) or remoteirc.sid
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if not remoteirc.has_cap('can-spawn-clients'):
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friendly_modes = []
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for modepair in modes:
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if modepair[0][-1] in irc.prefixmodes:
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orig_user = get_orig_user(irc, modepair[1])
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if orig_user and orig_user[0] == remoteirc.name:
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# Don't display prefix mode changes for someone on the target clientbot
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# link; this will either be relayed via modesync or ignored.
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continue
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# Convert UIDs to nicks when relaying this to clientbot.
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modepair = (modepair[0], irc.get_friendly_name(modepair[1]))
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elif modepair[0][-1] in irc.cmodes['*A'] and irc.is_hostmask(modepair[1]) and \
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conf.conf.get('relay', {}).get('clientbot_modesync', 'none').lower() != 'none':
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# Don't show bans if the ban is a simple n!u@h and modesync is enabled
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continue
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friendly_modes.append(modepair)
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if friendly_modes:
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# Call hooks, this is used for clientbot relay.
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remoteirc.call_hooks([remotesender, 'RELAY_RAW_MODE', {'channel': remotechan, 'modes': friendly_modes}])
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if supported_modes:
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remoteirc.mode(remotesender, remotechan, supported_modes)
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else: # Mode change blocked by CLAIM.
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reversed_modes = irc.reverse_modes(target, modes, oldobj=oldchan)
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if _is_uline(irc, numeric):
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# Special hack for "U-lined" servers - ignore changes to SIMPLE modes and
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# attempts to op u-lined clients (trying to change status for others
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# SHOULD be reverted).
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# This is for compatibility with Anope's DEFCON for the most part, as well as
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# silly people who try to register a channel multiple times via relay.
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reversed_modes = [modepair for modepair in reversed_modes if
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# Mode is a prefix mode but target isn't ulined, revert
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((modepair[0][-1] in irc.prefixmodes and not
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_is_uline(irc, modepair[1]))
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# Tried to set a list mode, revert
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or modepair[0][-1] in irc.cmodes['*A'])
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]
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if reversed_modes:
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log.debug('(%s) relay.handle_mode: Reversing mode changes of %r with %r (CLAIM).',
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irc.name, modes, reversed_modes)
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irc.mode(irc.sid, target, reversed_modes)
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remotechan = get_remote_channel(irc, remoteirc, target)
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if not remotechan:
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return
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supported_modes = get_supported_cmodes(irc, remoteirc, target, modes)
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# Check if the sender is a user with a relay client; otherwise relay the mode
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# from the corresponding server.
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remotesender = get_remote_user(irc, remoteirc, numeric, spawn_if_missing=False) or \
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get_relay_server_sid(remoteirc, irc) or remoteirc.sid
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if not remoteirc.has_cap('can-spawn-clients'):
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friendly_modes = []
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for modepair in modes:
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modechar = modepair[0][-1]
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if modechar in irc.prefixmodes:
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orig_user = get_orig_user(irc, modepair[1])
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if orig_user and orig_user[0] == remoteirc.name:
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# Don't display prefix mode changes for someone on the target clientbot
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# link; this will either be relayed via modesync or ignored.
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continue
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# Convert UIDs to nicks when relaying this to clientbot.
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modepair = (modepair[0], irc.get_friendly_name(modepair[1]))
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elif modechar in irc.cmodes['*A'] and irc.is_hostmask(modepair[1]) and \
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conf.conf.get('relay', {}).get('clientbot_modesync', 'none').lower() != 'none':
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# Don't show bans if the ban is a simple n!u@h and modesync is enabled
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continue
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friendly_modes.append(modepair)
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if friendly_modes:
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# Call hooks, this is used for clientbot relay.
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remoteirc.call_hooks([remotesender, 'RELAY_RAW_MODE', {'channel': remotechan, 'modes': friendly_modes}])
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if supported_modes:
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remoteirc.mode(remotesender, remotechan, supported_modes)
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else:
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# Set hideoper on remote opers, to prevent inflating
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@ -1665,6 +1645,35 @@ def handle_mode(irc, numeric, command, args):
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if remoteuser and modes:
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remoteirc.mode(remoteuser, remoteuser, modes)
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if irc.is_channel(target):
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# Use the old state of the channel to check for CLAIM access.
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oldchan = args.get('channeldata')
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if not check_claim(irc, target, numeric, chanobj=oldchan):
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# Mode change blocked by CLAIM.
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reversed_modes = irc.reverse_modes(target, modes, oldobj=oldchan)
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if _is_uline(irc, numeric):
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# Special hack for "U-lined" servers - ignore changes to SIMPLE modes and
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# attempts to op u-lined clients (trying to change status for others
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# SHOULD be reverted).
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# This is for compatibility with Anope's DEFCON for the most part, as well as
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# silly people who try to register a channel multiple times via relay.
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reversed_modes = [modepair for modepair in reversed_modes if
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# Mode is a prefix mode but target isn't ulined, revert
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((modepair[0][-1] in irc.prefixmodes and not
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_is_uline(irc, modepair[1]))
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# Tried to set a list mode, revert
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or modepair[0][-1] in irc.cmodes['*A'])
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]
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if reversed_modes:
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log.debug('(%s) relay.handle_mode: Reversing mode changes of %r with %r (CLAIM).',
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irc.name, modes, reversed_modes)
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irc.mode(irc.sid, target, reversed_modes)
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return
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iterate_all(irc, _handle_mode_loop, extra_args=(numeric, command, args))
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utils.add_hook(handle_mode, 'MODE')
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