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relay: initial modedelta implementation

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This commit is contained in:
James Lu 2017-03-31 22:52:40 -07:00
parent 4daa94c014
commit 4312983ca5
1 changed files with 88 additions and 0 deletions
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88
plugins/relay.py
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@ -2095,3 +2095,91 @@ def claim(irc, source, args):
db[relay]["claim"] = claimed
irc.reply('CLAIM for channel \x02%s\x02 set to: %s' %
(channel, ', '.join(claimed) or '\x1D(none)\x1D'))
@utils.add_cmd
def modedelta(irc, source, args):
"""<channel> [<named modes>]
Sets the relay mode delta for the given channel: a list of named mode pairs to apply on leaf
channels, but not the host network. This may be helpful in fighting spam if leaf networks
don't police it as well as your own (e.g. you can set +R with this).
Mode names are defined using PyLink named modes, and not IRC mode characters: you can find a
list of channel named modes and the characters they map to on different IRCds at
https://github.com/GLolol/PyLink/blob/master/docs/technical/channel-modes.csv
Examples of setting modes:
modedelta #channel regonly
modedelta #channel regonly inviteonly
modedelta #channel key,supersecret sslonly
modedelta #channel -
If no modes are given, this shows the mode delta for the channel.
A single hyphen (-) can also be given as a list of modes to disable the mode delta
and remove any mode deltas from relay leaves.
"""
try:
channel = irc.toLower(args[0])
except IndexError:
irc.error("Not enough arguments. Needs 1-2: channel, list of modes (optional).")
return
permissions.checkPermissions(irc, source, ['relay.modedelta'])
# We override get_relay() here to limit the search to the current network.
relay = (irc.name, channel)
with db_lock:
if relay not in db:
irc.error('No relay %r exists on this network (this command must be run on the '
'network this channel was created on).' % channel)
return
target_modes = []
old_modes = []
if '-' in args[1:]: # - given to clear the list
try:
# Keep track of the
old_modes = db[relay]['modedelta']
del db[relay]['modedelta']
except KeyError:
irc.error('No mode delta exists for %r.' % channel)
return
else:
irc.reply('Cleared the mode delta for %r.' % channel)
else:
modes = []
for modepair in map(str.lower, args[1:]):
# Construct mode pairs given the initial query.
m = modepair.split(',', 1)
if len(m) == 1:
m.append(None)
modes.append(m)
if modes:
old_modes = db[relay].get('modedelta', [])
db[relay]['modedelta'] = target_modes = modes
log.debug('channel: %s', str(channel))
irc.reply('Set the mode delta for \x02%s\x02 to: %s' % (channel, modes))
else: # No modes given, so show the list.
irc.reply('Mode delta for channel \x02%s\x02 is set to: %s' %
(channel, db[relay].get('modedelta') or '\x1D(none)\x1D'))
target_modes += [('-%s' % modepair[0], modepair[1]) for modepair in old_modes]
for chanpair in db[relay]['links']:
remotenet, remotechan = chanpair
remoteirc = world.networkobjects.get(remotenet)
remote_modes = []
# For each leaf channel, unset the old mode delta and set the new one
# if applicable.
for modepair in target_modes:
modeprefix = modepair[0][0]
if modeprefix not in '+-': # Assume + if no prefix was given.
modeprefix = '+'
modename = modepair[0].lstrip('+-')
mchar = remoteirc.cmodes.get(modename)
if mchar:
remote_modes.append(('%s%s' % (modeprefix, mchar), modepair[1]))
if remote_modes:
log.debug('(%s) Sending modedelta modes %s to %s/%s', irc.name, remote_modes, remotenet, remotechan)
remoteirc.proto.mode(remoteirc.pseudoclient.uid, remotechan, remote_modes)