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relay: block attempts to LINK if local TS is lower than remote

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Closes #301.
This commit is contained in:
James Lu 2016-08-04 13:04:32 -07:00
parent 9448bc86fd
commit 81ffa93bad
1 changed files with 11 additions and 0 deletions
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11
plugins/relay.py
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@ -1620,6 +1620,17 @@ def link(irc, source, args):
irc.reply("Error: Remote channel '%s%s' is already linked here "
"as %r." % (remotenet, channel, link[1]))
return
our_ts = irc.channels[localchan].ts
their_ts = world.networkobjects[remotenet].channels[channel].ts
if our_ts < their_ts:
log.debug('(%s) relay: Blocking link request %s%s -> %s%s due to bad TS (%s < %s)', irc.name,
irc.name, localchan, remotenet, channel, our_ts, their_ts)
irc.reply("Error: the channel creation date (TS) on %s is lower than the target "
"channel's; refusing to link. You should clear the local channel %s first "
"before linking, or use a different local channel." % (localchan, localchan))
return
entry['links'].add((irc.name, localchan))
log.info('(%s) relay: Channel %s linked to %s%s by %s.', irc.name,
localchan, remotenet, channel, irc.getHostmask(source))