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fix #1021

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This commit is contained in:
Shivaram Lingamneni
2020-05-17 14:02:59 -04:00
parent 1ab06949bf
commit 2f9234318c
2 changed files with 21 additions and 6 deletions
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irc/modes.go
+15 -2
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@@ -134,6 +134,15 @@ func ParseDefaultUserModes(rawModes *string) modes.ModeChanges {
return modeChanges
}
// #1021: channel key must be valid as a non-final parameter
func validateChannelKey(key string) bool {
// empty string is valid in this context because it unsets the mode
if len(key) == 0 {
return true
}
return key[0] != ':' && strings.IndexByte(key, ' ') == -1
}
// ApplyChannelModeChanges applies a given set of mode changes.
func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, changes modes.ModeChanges, rb *ResponseBuffer) (applied modes.ModeChanges) {
// so we only output one warning for each list type when full
@@ -244,8 +253,12 @@ func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, c
case modes.Key:
switch change.Op {
case modes.Add:
channel.setKey(change.Arg)
applied = append(applied, change)
if validateChannelKey(change.Arg) {
channel.setKey(change.Arg)
applied = append(applied, change)
} else {
rb.Add(nil, client.server.name, ERR_INVALIDMODEPARAM, details.nick, "*", fmt.Sprintf(client.t("Invalid mode %[1]s parameter: %[2]s"), string(change.Mode), change.Arg))
}
case modes.Remove:
channel.setKey("")
applied = append(applied, change)