From 60ff44dd17fe8a1213e919029930ed1b0b4a3e8c Mon Sep 17 00:00:00 2001
From: genuineparts <bernhard@becast.at>
Date: Sun, 22 Jun 2025 15:53:51 +0200
Subject: [PATCH] email regex again

---
 install/install.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/install/install.php b/install/install.php
index 36c178b..decc7d0 100755
--- a/install/install.php
+++ b/install/install.php
@@ -667,7 +667,7 @@ define(\'DEBUG\', FALSE);
 					if($_POST['pass']!=$_POST['passrepeat']){
 						$err.='<p><div class="comment"><img src="style/images/error.png" alt="" /><span style="color: red;">'.$this->t->_('Passwoerterfalsch').'</span></div></p>';
 					}
-					if(empty(preg_grep("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $_POST['email']))){
+                    if(!preg_match('/^(?!(?:(?:\x22?\x5C[\x00-\x7E]\x22?)|(?:\x22?[^\x5C\x22]\x22?)){255,})(?!(?:(?:\x22?\x5C[\x00-\x7E]\x22?)|(?:\x22?[^\x5C\x22]\x22?)){65,}@)(?:(?:[\x21\x23-\x27\x2A\x2B\x2D\x2F-\x39\x3D\x3F\x5E-\x7E]+)|(?:\x22(?:[\x01-\x08\x0B\x0C\x0E-\x1F\x21\x23-\x5B\x5D-\x7F]|(?:\x5C[\x00-\x7F]))*\x22))(?:\.(?:(?:[\x21\x23-\x27\x2A\x2B\x2D\x2F-\x39\x3D\x3F\x5E-\x7E]+)|(?:\x22(?:[\x01-\x08\x0B\x0C\x0E-\x1F\x21\x23-\x5B\x5D-\x7F]|(?:\x5C[\x00-\x7F]))*\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-[a-z0-9]+)*\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-[a-z0-9]+)*)|(?:\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\]]){7,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?)))|(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3}:)?)))?(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))(?:\.(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\]))$/iD',$_POST['email'])){
 						$err.='<p><div class="comment"><img src="style/images/error.png" alt="" /><span style="color: red;">'.$this->t->_('Emailinkorrekt').'</span></div></p>';
 					}
 					if(!$err){