From 4682d34674a6ca13b55dba0ed464441911c811d9 Mon Sep 17 00:00:00 2001
From: Krombel <krombel@krombel.de>
Date: Thu, 24 Jan 2019 01:59:36 +0100
Subject: [PATCH] fix 'allow username to contain digits'

---
 public/index.php | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/public/index.php b/public/index.php
index 9f8ec5f..537367c 100644
--- a/public/index.php
+++ b/public/index.php
@@ -50,14 +50,13 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
         if (empty($username)) {
             throw new Exception("UNKNOWN_USERNAME");
         }
-        if (strlen($username) > 20 ||
-                strlen($username) < 3) {
+        if (strlen($username) > 20 || strlen($username) < 3) {
             throw new Exception("USERNAME_INVALID");
         }
         if (!ctype_alnum($username)) {
             throw new Exception("USERNAME_NOT_ALNUM");
         }
-        if (!strcmp($username, strtolower($username))) {
+        if (strcmp($username, strtolower($username)) !== 0) {
             throw new Exception("USERNAME_INVALID");
         }
         if ($storePassword && (!isset($_POST["password"]) || !isset($_POST["password_confirm"]))) {