From a8ea8b3b65c966d175269d24b81c0097d9c980ed Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Fri, 26 Jul 2024 17:50:14 +0200
Subject: [PATCH] clients: Fix zip parsing

---
 www/clients.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/www/clients.php b/www/clients.php
index a6efaf4..e96c066 100644
--- a/www/clients.php
+++ b/www/clients.php
@@ -20,7 +20,9 @@ function get_zip_meta($path): array {
         return array($meta, null, null);
     }
 
+    $extraFieldLen1 = unpack("v", substr($zipHdr1, 28, 2))[1];
     $name1 = fread($fp, 7);
+    fseek($fp, $extraFieldLen1, SEEK_CUR);
     $data1 = fread($fp, unpack("V", substr($zipHdr1, 18, 4))[1]);
     if ($name1 !== "version" || !str_starts_with($data1, "elwig:")) {
         fclose($fp);
@@ -36,7 +38,9 @@ function get_zip_meta($path): array {
         return array($meta, $version, null);
     }
 
+    $extraFieldLen2 = unpack("v", substr($zipHdr2, 28, 2))[1];
     $name2 = fread($fp, 9);
+    fseek($fp, $extraFieldLen2, SEEK_CUR);
     if ($name2 !== "meta.json") {
         fclose($fp);
         return array($meta, $version, null);