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relay: mangle the mode name when forwarding extban->cmode so that +b syntax filters don't trigger

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This should allow bidirectional forwarding between UnrealIRCd +b ~T:block:<glob> and InspIRCd +g <glob> to work.
(#557)
This commit is contained in:
James Lu 2017-12-07 11:26:16 -08:00
parent 8fcb5f9df0
commit a2cb4daa46
1 changed files with 7 additions and 2 deletions
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9
plugins/relay.py
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@ -962,6 +962,10 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
log.debug('(%s) relay.get_supported_cmodes: expanding acting extban %s%s %s to %s%s %s for %s',
irc.name, prefix, orig_supported_char, old_arg, prefix,
supported_char, arg, remoteirc.name)
# Override the mode name so that we're not overly strict about nick!user@host
# conformance. Note: the reverse (cmode->extban) is not done because that would
# also trigger the nick!user@host filter for +b.
name = extban_name
elif extban_name in remoteirc.extbans_acting:
# This is also an extban on the target network.
# Just chop off the local prefix now; we rewrite it later after processing
@ -1020,8 +1024,9 @@ def get_supported_cmodes(irc, remoteirc, channel, modes):
else:
if name in ('ban', 'banexception', 'invex', 'quiet') and not remoteirc.is_hostmask(arg):
# Don't add unsupported bans that don't match n!u@h syntax.
log.debug("(%s) relay.get_supported_cmodes: skipping unsupported extban/mode (%r, %r) because it doesn't match nick!user@host.",
irc.name, supported_char, arg)
log.debug("(%s) relay.get_supported_cmodes: skipping unsupported extban/mode (%r, %r) "
"because it doesn't match nick!user@host. (name=%r)",
irc.name, supported_char, arg, name)
break
# We broke up an acting extban earlier. Now, rewrite it into a new mode by joining the prefix and data together.