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relay: add in muteban relaying on InspIRCd and UnrealIRCd

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This commit is contained in:
James Lu 2017-08-05 21:52:52 -07:00
parent 7db811f2dd
commit ffde2c6b32
1 changed files with 42 additions and 4 deletions
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46
plugins/relay.py
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@ -728,7 +728,7 @@ 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',
'opmoderated', 'owner', 'private', 'quiet', 'regonly',
'regmoderated', 'secret', 'sslonly', 'adminonly',
'stripcolor', 'topiclock', 'voice', 'flood',
'flood_unreal', 'joinflood', 'freetarget',
@ -773,14 +773,24 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
# 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():
mode_parse_aborted = False
if name.startswith('*'):
# XXX: Okay, we need a better place to store modetypes.
continue
if modechar == m:
supported_char = remoteirc.cmodes.get(name)
if supported_char is None:
break
# The mode we requested is an extban.
if name in remoteirc.extbans_acting:
# We make the assumption that acting extbans can only be used with +b...
old_arg = arg
supported_char = remoteirc.cmodes['ban']
arg = remoteirc.extbans_acting[name] + arg # Add the extban prefix
log.debug('(%s) relay.get_supported_cmodes: folding mode %s%s %s to %s%s %s for %s',
irc.name, prefix, modechar, old_arg, prefix, supported_char, arg, remoteirc.name)
elif supported_char is None:
continue
if name not in whitelist:
log.debug("(%s) relay.get_supported_cmodes: skipping mode (%r, %r) because "
@ -824,8 +834,36 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
irc.name, name, arg, remoteirc.name)
break
# Expand extbans known on the local IRCd to modes on the remote, if any exist.
for extban_name, extban_prefix in irc.extbans_acting.items():
log.debug('(%s) relay.get_supported_cmodes: checking for extban that needs expansion'
'name=%s, extban_name=%s, arg=%s, extban_prefix=%s', irc.name, name, extban_name, arg,
extban_prefix)
if name == 'ban' and arg.startswith(extban_prefix):
orig_supported_char, old_arg = supported_char, arg
if extban_name in remoteirc.cmodes:
# This extban is a mode on the target network.
supported_char = remoteirc.cmodes[extban_name]
arg = arg[len(extban_prefix):] # Strip off the extban prefix
elif extban_name in remoteirc.extbans_acting:
# It is also an extban on the target network.
arg = remoteirc.extbans_acting[extban_name] + arg[len(extban_prefix):]
else:
log.debug('(%s) relay.get_supported_cmodes: blocking extban %s%s %s expansion as target %s doesn\'t support it',
irc.name, prefix, supported_char, arg, remoteirc.name)
mode_parse_aborted = True # XXX: nested loops are ugly...
if not mode_parse_aborted:
log.debug('(%s) relay.get_supported_cmodes: expanding extban %s%s %s to %s%s %s for %s',
irc.name, prefix, orig_supported_char, old_arg, prefix,
supported_char, arg, remoteirc.name)
break
if mode_parse_aborted:
break
final_modepair = (prefix+supported_char, arg)
if name in ('ban', 'banexception', 'invex') and not utils.isHostmask(arg):
if name in ('ban', 'banexception', 'invex', 'quiet') and not utils.isHostmask(arg):
# Don't add bans that don't match n!u@h syntax!
log.debug("(%s) relay.get_supported_cmodes: skipping mode (%r, %r) because it doesn't match nick!user@host syntax.",
irc.name, modechar, arg)