api.php

<?php
/**
* ownCloud
*
* @author Tom Needham
* @author Michael Gapczynski
* @author Bart Visscher
* @copyright 2012 Tom Needham tom@owncloud.com
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
* @copyright 2012 Bart Visscher bartv@thisnet.nl
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
*
*/

class OC_API {

	/**
	 * API authentication levels
	 */
	const GUEST_AUTH = 0;
	const USER_AUTH = 1;
	const SUBADMIN_AUTH = 2;
	const ADMIN_AUTH = 3;

	/**
	 * API Response Codes
	 */
	const RESPOND_UNAUTHORISED = 997;
	const RESPOND_SERVER_ERROR = 996;
	const RESPOND_NOT_FOUND = 998;
	const RESPOND_UNKNOWN_ERROR = 999;

	/**
	 * api actions
	 */
	protected static $actions = array();
	private static $logoutRequired = false;
	private static $isLoggedIn = false;

	/**
	 * registers an api call
	 * @param string $method the http method
	 * @param string $url the url to match
	 * @param callable $action the function to run
	 * @param string $app the id of the app registering the call
	 * @param int $authLevel the level of authentication required for the call
	 * @param array $defaults
	 * @param array $requirements
	 */
	public static function register($method, $url, $action, $app,
				$authLevel = OC_API::USER_AUTH,
				$defaults = array(),
				$requirements = array()) {
		$name = strtolower($method).$url;
		$name = str_replace(array('/', '{', '}'), '_', $name);
		if(!isset(self::$actions[$name])) {
			$oldCollection = OC::$server->getRouter()->getCurrentCollection();
			OC::$server->getRouter()->useCollection('ocs');