From f28aa5f3ecbd729b53894d7e091db0dab1368ddc Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Thu, 7 Dec 2006 17:02:25 +0000
Subject: - Patch #92059 by Steven et al: added a memory check to
 garland/color.module.

---
 modules/color/color.module | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'modules')

diff --git a/modules/color/color.module b/modules/color/color.module
index f75f483eb..b6c43ef67 100644
--- a/modules/color/color.module
+++ b/modules/color/color.module
@@ -189,6 +189,23 @@ function color_scheme_form_submit($form_id, $values) {
     }
   }
 
+  // Make sure enough memory is available, if PHP's memory limit is compiled in.
+  if (function_exists('memory_get_usage')) {
+    // Fetch source image dimensions.
+    $source = drupal_get_path('theme', $theme) .'/'. $info['base_image'];
+    list($width, $height) = getimagesize($source);
+
+    // We need at least a copy of the source and a target buffer of the same
+    // size (both at 32bpp).
+    $required = $width * $height * 8;
+    $usage = memory_get_usage();
+    $limit = parse_size(ini_get('memory_limit'));
+    if ($usage + $required > $limit) {
+      drupal_set_message(t('There is not enough memory available to PHP to change this theme\'s color scheme. You need at least %size more. Check the <a href="%url">PHP documentation</a> for more information.', array('%size' => format_size($usage + $required - $limit), '%url' => 'http://www.php.net/manual/en/ini.core.php#ini.sect.resource-limits')), 'error');
+      return;
+    }
+  }
+
   // Delete old files
   foreach (variable_get('color_'. $theme .'_files', array()) as $file) {
     @unlink($file);
-- 
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