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fix #1896

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Don't allow any new uses of 0 as a nickname, since it conflicts with
the use of 0 as a placeholder for account name in WHOX.
This commit is contained in:
Shivaram Lingamneni 2022-01-19 04:14:00 -05:00
parent c2bf59ca38
commit e3c9eb8e71
1 changed files with 4 additions and 2 deletions
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6
irc/client_lookup_set.go
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@ -101,8 +101,10 @@ func (clients *ClientManager) SetNick(client *Client, session *Session, newNick
// on previous versions of Ergo:
if newNick != accountName {
// can't contain "disfavored" characters like <, or start with a $ because
// it collides with the massmessage mask syntax:
if strings.ContainsAny(newNick, disfavoredNameCharacters) || strings.HasPrefix(newNick, "$") {
// it collides with the massmessage mask syntax. '0' conflicts with the use of 0
// as a placeholder in WHOX (#1896):
if strings.ContainsAny(newNick, disfavoredNameCharacters) || strings.HasPrefix(newNick, "$") ||
newNick == "0" {
return "", errNicknameInvalid, false
}
}