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strings: Disallow nicknames that mess with the protocol in bad ways

This commit is contained in:
Daniel Oaks 2016-04-12 22:40:58 +10:00
parent 65539a593b
commit 7ce62444de

View File

@ -1,9 +1,10 @@
package irc
import (
"golang.org/x/text/unicode/norm"
"regexp"
"strings"
"golang.org/x/text/unicode/norm"
)
var (
@ -35,7 +36,15 @@ func (name Name) IsChannel() bool {
}
func (name Name) IsNickname() bool {
return NicknameExpr.MatchString(name.String())
namestr := name.String()
// * is used for unregistered clients
// , is used as a separator by the protocol
// # is a channel prefix
// @+ are channel membership prefixes
if namestr == "*" || strings.Contains(namestr, ",") || strings.Contains("#@+", string(namestr[0])) {
return false
}
return NicknameExpr.MatchString(namestr)
}
// conversions