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relay: allow adding back multiple extban prefixes (#498)

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This fixes inbound relaying of modes such as +q $a:test, which are eventually converted into double extbans on InspIRCd and UnrealIRCd.
This commit is contained in:
James Lu 2017-08-23 22:29:14 -07:00
parent c6ca89b48a
commit 11d63e19cd
1 changed files with 5 additions and 5 deletions
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10
plugins/relay.py
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@ -837,12 +837,12 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
# 1) Both target & source both use a chmode (e.g. ts6 +q). In these cases, the mode is just forwarded as-is.
# 2) Forwarding from chmode to extban - this is the case being handled here.
# 3) Forwarding from extban to extban (see below)
pending_acting_extban_prefix = None
pending_extban_prefixes = []
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']
pending_acting_extban_prefix = name # Save the extban prefix for joining later
pending_extban_prefixes.append(name) # Save the extban prefix for joining later
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:
@ -904,7 +904,7 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
# This is also an extban on the target network.
# Just chop off the local prefix now; we rewrite it later after processing
# any matching extbans.
pending_acting_extban_prefix = extban_name
pending_extban_prefixes.append(extban_name)
arg = arg[len(extban_prefix):]
else:
# This mode/extban isn't supported, so ignore it.
@ -956,8 +956,8 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
break
# We broke up an acting extban earlier. Now, rewrite it into a new mode by joining the prefix and data together.
if pending_acting_extban_prefix:
arg = remoteirc.extbans_acting[pending_acting_extban_prefix] + arg
while pending_extban_prefixes:
arg = remoteirc.extbans_acting[pending_extban_prefixes.pop()] + arg
if mode_parse_aborted:
break