Initial Release of the calendar plugin

dav/SabreDAV/lib/Sabre/DAV/Auth/Backend/Apache.php

@@ -0,0 +1,62 @@
+<?php
+
+/**
+ * Apache authenticator
+ *
+ * This authentication backend assumes that authentication has been
+ * configured in apache, rather than within SabreDAV.
+ *
+ * Make sure apache is properly configured for this to work.
+ *
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_DAV_Auth_Backend_Apache implements Sabre_DAV_Auth_IBackend {
+
+    /**
+     * Current apache user
+     *
+     * @var string
+     */
+    protected $remoteUser;
+
+    /**
+     * Authenticates the user based on the current request.
+     *
+     * If authentication is successful, true must be returned.
+     * If authentication fails, an exception must be thrown.
+     *
+     * @param Sabre_DAV_Server $server
+     * @param string $realm
+     * @return bool
+     */
+    public function authenticate(Sabre_DAV_Server $server, $realm) {
+
+        $remoteUser = $server->httpRequest->getRawServerValue('REMOTE_USER');
+        if (is_null($remoteUser)) {
+            throw new Sabre_DAV_Exception('We did not receive the $_SERVER[REMOTE_USER] property. This means that apache might have been misconfigured');
+        }
+
+        $this->remoteUser = $remoteUser;
+        return true;
+
+    }
+
+    /**
+     * Returns information about the currently logged in user.
+     *
+     * If nobody is currently logged in, this method should return null.
+     *
+     * @return array|null
+     */
+    public function getCurrentUser() {
+
+        return $this->remoteUser;
+
+    }
+
+}
+