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validate key names for sub

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This commit is contained in:
Shivaram Lingamneni 2025-06-15 18:29:30 -04:00
parent 1c87a39a3c
commit caef3ed3a1
1 changed files with 6 additions and 1 deletions
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7
irc/handlers.go
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@ -3246,7 +3246,12 @@ func metadataHandler(server *Server, client *Client, msg ircmsg.Message, rb *Res
case "sub":
keys := msg.Params[2:]
// TODO validate key names here
for _, key := range keys {
if metadataKeyIsEvil(key) {
rb.Add(nil, server.name, "FAIL", "METADATA", "KEY_INVALID", utils.SafeErrorParam(key), client.t("Invalid key name"))
return
}
}
added, err := rb.session.SubscribeTo(keys...)
if err == errMetadataTooManySubs {
bad := keys[len(added)] // get the key that broke the camel's back