Upgrade phpCAS

[piwik-CASLogin.git] / CAS / CAS / Autoload.php

diff --git a/CAS/CAS/Autoload.php b/CAS/CAS/Autoload.php
new file mode 100644 (file)
index 0000000..c7d436e
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+++ b/CAS/CAS/Autoload.php
@@ -0,0 +1,97 @@
+<?php
+
+/**
+ * Autoloader Class
+ *
+ *  PHP Version 5
+ *
+ * @file      CAS/Autoload.php
+ * @category  Authentication
+ * @package   SimpleCAS
+ * @author    Brett Bieber <brett.bieber@gmail.com>
+ * @copyright 2008 Regents of the University of Nebraska
+ * @license   http://www1.unl.edu/wdn/wiki/Software_License BSD License
+ * @link      http://code.google.com/p/simplecas/
+ **/
+
+/**
+ * Autoload a class
+ *
+ * @param string $class Classname to load
+ *
+ * @return bool
+ */
+function CAS_autoload($class)
+{
+    // Static to hold the Include Path to CAS
+    static $include_path;
+    // Setup the include path if it's not already set from a previous call
+    if (!$include_path) {
+        $include_path = dirname(dirname(__FILE__));
+    }
+    if (substr($class, 0, 4) !== 'CAS_') {
+        return false;
+    }
+    // Declare local variable to store the expected full path to the file
+    $file_path = $include_path . '/' . str_replace('_', '/', $class) . '.php';
+
+    $fp = @fopen($file_path, 'r', true);
+    if ($fp) {
+        fclose($fp);
+        include $file_path;
+        if (!class_exists($class, false) && !interface_exists($class, false)) {
+            die(
+                new Exception(
+                    'Class ' . $class . ' was not present in ' .
+                    $file_path .
+                    ' [CAS_autoload]'
+                )
+            );
+        }
+        return true;
+    }
+    $e = new Exception(
+        'Class ' . $class . ' could not be loaded from ' .
+        $file_path . ', file does not exist (Path="'
+        . $include_path .'") [CAS_autoload]'
+    );
+    $trace = $e->getTrace();
+    if (isset($trace[2]) && isset($trace[2]['function'])
+        && in_array($trace[2]['function'], array('class_exists', 'interface_exists'))
+    ) {
+        return false;
+    }
+    if (isset($trace[1]) && isset($trace[1]['function'])
+        && in_array($trace[1]['function'], array('class_exists', 'interface_exists'))
+    ) {
+        return false;
+    }
+    die ((string) $e);
+}
+
+// set up __autoload
+if (function_exists('spl_autoload_register')) {
+    if (!(spl_autoload_functions()) || !in_array('CAS_autoload', spl_autoload_functions())) {
+        spl_autoload_register('CAS_autoload');
+        if (function_exists('__autoload') && !in_array('__autoload', spl_autoload_functions())) {
+            // __autoload() was being used, but now would be ignored, add
+            // it to the autoload stack
+            spl_autoload_register('__autoload');
+        }
+    }
+} elseif (!function_exists('__autoload')) {
+
+    /**
+     * Autoload a class
+     *
+     * @param string $class Class name
+     *
+     * @return bool
+     */
+    function __autoload($class)
+    {
+        return CAS_autoload($class);
+    }
+}
+
+?>
\ No newline at end of file