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upstream: fix panic on malformed RPL_CHANNELMODEIS

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This commit is contained in:
Simon Ser 2024-04-25 20:06:13 +02:00
parent 87b75c44d2
commit 8e0c256c47
1 changed files with 3 additions and 1 deletions
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4
upstream.go
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@ -1389,8 +1389,10 @@ func (uc *upstreamConn) handleMessage(ctx context.Context, msg *irc.Message) err
return err
}
modeStr := ""
var modeArgs []string
if len(msg.Params) > 2 {
modeStr = msg.Params[2]
modeArgs = msg.Params[3:]
}
ch := uc.channels.Get(channel)
@ -1401,7 +1403,7 @@ func (uc *upstreamConn) handleMessage(ctx context.Context, msg *irc.Message) err
firstMode := ch.modes == nil
ch.modes = make(map[byte]string)
if err := applyChannelModes(ch, modeStr, msg.Params[3:]); err != nil {
if err := applyChannelModes(ch, modeStr, modeArgs); err != nil {
return err
}