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validate normalized masks as IRC params

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This commit is contained in:
Shivaram Lingamneni 2020-10-25 23:31:45 -04:00
parent 9670d96282
commit af2b433195
2 changed files with 12 additions and 2 deletions
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8
irc/strings.go
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@ -15,6 +15,8 @@ import (
"golang.org/x/text/secure/precis"
"golang.org/x/text/unicode/norm"
"golang.org/x/text/width"
"github.com/oragono/oragono/irc/utils"
)
const (
@ -270,7 +272,11 @@ func CanonicalizeMaskWildcard(userhost string) (expanded string, err error) {
if host != "*" {
host = strings.ToLower(host)
}
return fmt.Sprintf("%s!%s@%s", nick, user, host), nil
expanded = fmt.Sprintf("%s!%s@%s", nick, user, host)
if utils.SafeErrorParam(expanded) != expanded {
err = errInvalidCharacter
}
return
}
func foldASCII(str string) (result string, err error) {