From 3239296bf3de97b0c9eb0523066a111cae9d9531 Mon Sep 17 00:00:00 2001
From: Ludovic Chopin <lchopin+github@gmail.com>
Date: Sun, 30 May 2021 20:19:02 +0200
Subject: [PATCH] issue #1363: Fix crc32 for 32bit processors

---
 admin/include/pclzip.lib.php | 4 ++--
 include/template.class.php   | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/admin/include/pclzip.lib.php b/admin/include/pclzip.lib.php
index 3bb44d6a5..215a9f613 100644
--- a/admin/include/pclzip.lib.php
+++ b/admin/include/pclzip.lib.php
@@ -2677,7 +2677,7 @@
         @fclose($v_file);
 
         // ----- Calculate the CRC
-        $p_header['crc'] = @crc32($v_content);
+        $p_header['crc'] = @hash("crc32b", $v_content);
         
         // ----- Look for no compression
         if ($p_options[PCLZIP_OPT_NO_COMPRESSION]) {
@@ -2715,7 +2715,7 @@
         $v_content = $p_filedescr['content'];
 
         // ----- Calculate the CRC
-        $p_header['crc'] = @crc32($v_content);
+        $p_header['crc'] = @hash("crc32b", $v_content);
         
         // ----- Look for no compression
         if ($p_options[PCLZIP_OPT_NO_COMPRESSION]) {
diff --git a/include/template.class.php b/include/template.class.php
index b88d1a7dd..ae3e8eeec 100644
--- a/include/template.class.php
+++ b/include/template.class.php
@@ -212,7 +212,7 @@ class Template
     {
       $compile_id = "1";
       $compile_id .= ($real_dir = realpath($dir))===false ? $dir : $real_dir;
-      $this->smarty->compile_id = base_convert(crc32($compile_id), 10, 36 );
+      $this->smarty->compile_id = base_convert(hash("crc32b", $compile_id), 16, 36 );
     }
   }
 
@@ -1021,7 +1021,7 @@ var s,after = document.getElementsByTagName(\'script\')[document.getElementsByTa
           $this->smarty->registerFilter($type, $callback);
         }
       }
-      $this->smarty->compile_id .= '.'.base_convert(crc32($compile_id), 10, 36);
+      $this->smarty->compile_id .= '.'.base_convert(hash("crc32b", $compile_id), 16, 36);
     }
   }
 
@@ -1896,7 +1896,7 @@ final class FileCombiner
     if (count($pending)>1)
     {
       $key = join('>', $key);
-      $file = PWG_COMBINED_DIR . base_convert(crc32($key),10,36) . '.' . $this->type;
+      $file = PWG_COMBINED_DIR . base_convert(hash("crc32b", $key), 16, 36) . '.' . $this->type;
       if ($force || !file_exists(PHPWG_ROOT_PATH.$file) )
       {
         $output = '';
@@ -1945,7 +1945,7 @@ final class FileCombiner
         $key = array($combinable->path, $combinable->version);
         if ($conf['template_compile_check'])
           $key[] = filemtime( PHPWG_ROOT_PATH . $combinable->path );
-        $file = PWG_COMBINED_DIR . 't' . base_convert(crc32(implode(',',$key)),10,36) . '.' . $this->type;
+        $file = PWG_COMBINED_DIR . 't' . base_convert(hash("crc32b", implode(',', $key)), 16, 36) . '.' . $this->type;
         if (!$force && file_exists(PHPWG_ROOT_PATH.$file) )
         {
           $combinable->path = $file;