Merge pull request #150 from shadlaws/fix_zend_guard_loader_issues

#1749, 1754, 1901 - Eliminate incompatibility with Zend Guard Loader.

1 files changed, 45 insertions, 0 deletions

diff --git a/modules/gallery/libraries/MY_Kohana.php b/modules/gallery/libraries/MY_Kohana.php
new file mode 100644
index 00000000..d344c8ed
--- /dev/null
+++ b/modules/gallery/libraries/MY_Kohana.php
@@ -0,0 +1,45 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2013 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+final class Kohana extends Kohana_Core {
+  /**
+   * Wrapper function for Kohana::auto_load that provides compatibility with Zend Guard Loader's
+   * code obfuscation.  Zend Guard is enabled by default on many PHP 5.3+ installations and can
+   * cause problems with Kohana 2.4.  When a class is not found, Zend Guard Loader may continue to
+   * try and load the class, eventually leading to a seg fault.
+   *
+   * Instead, if we can't find the class and we can see that code obfuscation is at level 3+, let's
+   * load a dummy class.  This does not change the return value, so Kohana still knows that
+   * there is no class.
+   *
+   * This is based on the patch described here: http://blog.teatime.com.tw/1/post/403
+   */
+  public static function auto_load($class) {
+    $found = parent::auto_load($class);
+
+    if (!$found && function_exists("zend_current_obfuscation_level") &&
+        (zend_current_obfuscation_level() >= 3)) {
+      // Load a dummy class instead.
+      eval("class $class {}");
+    }
+
+    // Return the same result.
+    return $found;
+  }
+}
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