fix search for mediawiki

utils/ldap.go

@@ -2,7 +2,6 @@ package utils
 
 import (
 	"fmt"
-	"log"
 )
 
 func GetMail(user string) string {
@@ -15,14 +14,19 @@ func GetLdapName(user string) string {
 
 func GetUser(name string) string {
 	endIndex := len(name) - BaseLenght
+	if endIndex < 0 {
+		return ""
+	}
 	user := name[UidLenght:endIndex]
-	log.Print("User ", user)
 	return user
 }
 
 func GetSearchUser(name string) string {
 	startIndex := UidLenght + 1
 	endIndex := len(name) - 1
+	if endIndex < 0 {
+		return ""
+	}
 	user := name[startIndex:endIndex]
 	return user
 }