2012-07-29 01:40:11 +04:00
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<?php
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/**
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2012-07-29 01:50:40 +04:00
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* ownCloud
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*
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* @author Tom Needham
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* @author Michael Gapczynski
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* @author Bart Visscher
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* @copyright 2012 Tom Needham tom@owncloud.com
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* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
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* @copyright 2012 Bart Visscher bartv@thisnet.nl
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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2012-08-03 15:47:05 +04:00
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2012-07-29 01:50:40 +04:00
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class OC_API {
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2012-08-03 04:02:31 +04:00
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2012-09-13 13:41:20 +04:00
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/**
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* API authentication levels
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*/
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const GUEST_AUTH = 0;
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const USER_AUTH = 1;
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const SUBADMIN_AUTH = 2;
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const ADMIN_AUTH = 3;
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2013-02-10 15:44:59 +04:00
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2013-01-25 16:48:59 +04:00
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/**
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* API Response Codes
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*/
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const RESPOND_UNAUTHORISED = 997;
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const RESPOND_SERVER_ERROR = 996;
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const RESPOND_NOT_FOUND = 998;
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const RESPOND_UNKNOWN_ERROR = 999;
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2012-07-29 01:50:40 +04:00
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/**
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2012-12-31 19:47:15 +04:00
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* api actions
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*/
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2012-07-30 14:56:21 +04:00
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protected static $actions = array();
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2013-10-21 20:58:46 +04:00
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private static $logoutRequired = false;
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2013-01-25 16:48:59 +04:00
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2012-07-29 01:50:40 +04:00
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/**
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2012-12-31 19:47:15 +04:00
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* registers an api call
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* @param string $method the http method
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* @param string $url the url to match
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* @param callable $action the function to run
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* @param string $app the id of the app registering the call
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* @param int $authLevel the level of authentication required for the call
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* @param array $defaults
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* @param array $requirements
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*/
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2013-01-25 16:48:59 +04:00
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public static function register($method, $url, $action, $app,
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2012-12-31 19:47:15 +04:00
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$authLevel = OC_API::USER_AUTH,
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2012-08-01 01:26:15 +04:00
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$defaults = array(),
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2012-12-31 19:47:15 +04:00
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$requirements = array()) {
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2012-07-29 01:50:40 +04:00
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$name = strtolower($method).$url;
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2012-07-30 22:52:47 +04:00
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$name = str_replace(array('/', '{', '}'), '_', $name);
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2012-12-31 19:47:15 +04:00
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if(!isset(self::$actions[$name])) {
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2012-08-02 23:51:31 +04:00
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OC::getRouter()->useCollection('ocs');
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2012-12-12 02:36:46 +04:00
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OC::getRouter()->create($name, $url)
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2012-08-01 00:34:35 +04:00
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->method($method)
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2013-06-28 19:25:10 +04:00
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->defaults($defaults)
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->requirements($requirements)
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2012-07-29 01:50:40 +04:00
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->action('OC_API', 'call');
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self::$actions[$name] = array();
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}
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2013-01-25 16:48:59 +04:00
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self::$actions[$name][] = array('app' => $app, 'action' => $action, 'authlevel' => $authLevel);
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2012-07-29 01:50:40 +04:00
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}
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2013-01-25 16:48:59 +04:00
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2012-07-29 01:50:40 +04:00
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/**
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2012-12-31 19:47:15 +04:00
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* handles an api call
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* @param array $parameters
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*/
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public static function call($parameters) {
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2012-09-17 16:08:17 +04:00
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// Prepare the request variables
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2012-12-31 19:47:15 +04:00
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if($_SERVER['REQUEST_METHOD'] == 'PUT') {
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2012-12-15 16:37:44 +04:00
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parse_str(file_get_contents("php://input"), $parameters['_put']);
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2013-02-09 19:46:55 +04:00
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} else if($_SERVER['REQUEST_METHOD'] == 'DELETE') {
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2012-12-15 16:37:44 +04:00
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parse_str(file_get_contents("php://input"), $parameters['_delete']);
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2012-09-17 16:08:17 +04:00
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}
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2012-07-30 23:03:41 +04:00
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$name = $parameters['_route'];
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2013-01-25 16:48:59 +04:00
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// Foreach registered action
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$responses = array();
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foreach(self::$actions[$name] as $action) {
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// Check authentication and availability
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2013-04-27 20:45:23 +04:00
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if(!self::isAuthorised($action)) {
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2013-01-25 16:48:59 +04:00
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$responses[] = array(
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'app' => $action['app'],
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'response' => new OC_OCS_Result(null, OC_API::RESPOND_UNAUTHORISED, 'Unauthorised'),
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2013-11-14 02:46:24 +04:00
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'shipped' => OC_App::isShipped($action['app']),
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2013-01-25 16:48:59 +04:00
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);
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continue;
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2013-01-14 23:30:39 +04:00
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}
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2013-01-25 16:48:59 +04:00
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if(!is_callable($action['action'])) {
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$responses[] = array(
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'app' => $action['app'],
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'response' => new OC_OCS_Result(null, OC_API::RESPOND_NOT_FOUND, 'Api method not found'),
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2013-11-14 02:46:24 +04:00
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'shipped' => OC_App::isShipped($action['app']),
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2013-01-25 16:48:59 +04:00
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);
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continue;
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}
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// Run the action
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$responses[] = array(
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'app' => $action['app'],
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'response' => call_user_func($action['action'], $parameters),
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2013-11-14 02:46:24 +04:00
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'shipped' => OC_App::isShipped($action['app']),
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2013-01-25 16:48:59 +04:00
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);
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2012-12-13 01:04:23 +04:00
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}
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2013-01-25 16:48:59 +04:00
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$response = self::mergeResponses($responses);
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2012-12-12 02:36:46 +04:00
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$formats = array('json', 'xml');
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2013-05-02 16:51:53 +04:00
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2012-12-12 02:36:46 +04:00
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$format = !empty($_GET['format']) && in_array($_GET['format'], $formats) ? $_GET['format'] : 'xml';
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2013-10-21 20:58:46 +04:00
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if (self::$logoutRequired) {
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OC_User::logout();
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}
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2013-05-02 16:51:53 +04:00
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self::respond($response, $format);
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2012-07-29 01:50:40 +04:00
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}
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2013-01-25 16:48:59 +04:00
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/**
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* merge the returned result objects into one response
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* @param array $responses
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*/
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2013-11-14 02:46:24 +04:00
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public static function mergeResponses($responses) {
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2013-01-25 16:48:59 +04:00
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$response = array();
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// Sort into shipped and thirdparty
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$shipped = array(
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2013-02-09 16:50:19 +04:00
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'succeeded' => array(),
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2013-01-25 16:48:59 +04:00
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'failed' => array(),
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);
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$thirdparty = array(
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'succeeded' => array(),
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'failed' => array(),
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);
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2013-01-14 23:30:39 +04:00
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2013-01-25 16:48:59 +04:00
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foreach($responses as $response) {
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2013-11-14 02:46:24 +04:00
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if($response['shipped'] || ($response['app'] === 'core')) {
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2013-01-25 16:48:59 +04:00
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if($response['response']->succeeded()) {
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2013-11-14 02:46:24 +04:00
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$shipped['succeeded'][$response['app']] = $response;
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2013-01-25 16:48:59 +04:00
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} else {
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2013-11-14 02:46:24 +04:00
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$shipped['failed'][$response['app']] = $response;
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2013-01-25 16:48:59 +04:00
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}
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} else {
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if($response['response']->succeeded()) {
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2013-11-14 02:46:24 +04:00
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$thirdparty['succeeded'][$response['app']] = $response;
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2013-01-25 16:48:59 +04:00
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} else {
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2013-11-14 02:46:24 +04:00
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$thirdparty['failed'][$response['app']] = $response;
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2013-01-25 16:48:59 +04:00
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}
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}
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}
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2013-05-02 16:36:16 +04:00
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2013-01-25 16:48:59 +04:00
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// Remove any error responses if there is one shipped response that succeeded
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2013-11-14 05:14:37 +04:00
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if(!empty($shipped['failed'])) {
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2013-01-25 16:48:59 +04:00
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// Which shipped response do we use if they all failed?
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// They may have failed for different reasons (different status codes)
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// Which reponse code should we return?
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// Maybe any that are not OC_API::RESPOND_SERVER_ERROR
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2013-11-14 05:19:46 +04:00
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// Merge failed responses if more than one
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$data = array();
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$meta = array();
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foreach($shipped['failed'] as $failure) {
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$data = array_merge_recursive($data, $failure['response']->getData());
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}
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$picked = reset($shipped['failed']);
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$code = $picked['response']->getStatusCode();
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$response = new OC_OCS_Result($data, $code);
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return $response;
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2013-11-14 05:14:37 +04:00
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} elseif(!empty($shipped['succeeded'])) {
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$responses = array_merge($shipped['succeeded'], $thirdparty['succeeded']);
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2013-05-02 16:36:16 +04:00
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} elseif(!empty($thirdparty['failed'])) {
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2013-01-25 16:48:59 +04:00
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// Return the third party failure result
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2013-04-25 04:08:11 +04:00
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$response = reset($thirdparty['failed']);
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2013-11-14 05:10:56 +04:00
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return $response['response'];
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2013-05-02 16:36:16 +04:00
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} else {
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2013-11-13 04:45:49 +04:00
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$responses = $thirdparty['succeeded'];
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2013-01-25 16:48:59 +04:00
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}
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// Merge the successful responses
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$meta = array();
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$data = array();
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2013-05-02 16:36:16 +04:00
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2013-01-25 16:48:59 +04:00
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foreach($responses as $app => $response) {
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2013-11-14 02:46:24 +04:00
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if($response['shipped']) {
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$data = array_merge_recursive($response['response']->getData(), $data);
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2013-01-25 16:48:59 +04:00
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} else {
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2013-11-14 02:46:24 +04:00
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$data = array_merge_recursive($data, $response['response']->getData());
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2013-01-25 16:48:59 +04:00
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}
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2013-11-14 05:00:14 +04:00
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$codes[] = $response['response']->getStatusCode();
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2013-01-25 16:48:59 +04:00
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}
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2013-11-13 04:45:49 +04:00
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// Use any non 100 status codes
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$statusCode = 100;
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foreach($codes as $code) {
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if($code != 100) {
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$statusCode = $code;
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break;
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}
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}
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$result = new OC_OCS_Result($data, $statusCode);
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2013-01-25 16:48:59 +04:00
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return $result;
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}
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2012-09-13 13:41:20 +04:00
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/**
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* authenticate the api call
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* @param array $action the action details as supplied to OC_API::register()
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* @return bool
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*/
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2012-12-31 19:47:15 +04:00
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private static function isAuthorised($action) {
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2012-09-13 13:41:20 +04:00
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$level = $action['authlevel'];
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2012-12-31 19:47:15 +04:00
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switch($level) {
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2012-09-13 13:41:20 +04:00
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case OC_API::GUEST_AUTH:
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// Anyone can access
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return true;
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break;
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case OC_API::USER_AUTH:
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// User required
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2012-09-13 19:18:38 +04:00
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return self::loginUser();
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2012-09-13 13:41:20 +04:00
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break;
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case OC_API::SUBADMIN_AUTH:
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// Check for subadmin
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2012-09-13 19:18:38 +04:00
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$user = self::loginUser();
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2012-12-31 19:47:15 +04:00
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if(!$user) {
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2012-09-13 19:18:38 +04:00
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return false;
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} else {
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2012-12-31 19:47:15 +04:00
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$subAdmin = OC_SubAdmin::isSubAdmin($user);
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2013-02-09 16:00:44 +04:00
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$admin = OC_User::isAdminUser($user);
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2013-01-25 16:48:59 +04:00
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if($subAdmin || $admin) {
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2012-09-14 17:41:06 +04:00
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return true;
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} else {
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return false;
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}
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2012-09-13 19:18:38 +04:00
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}
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2012-09-13 13:41:20 +04:00
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break;
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case OC_API::ADMIN_AUTH:
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// Check for admin
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2012-09-13 19:18:38 +04:00
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$user = self::loginUser();
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2012-12-31 19:47:15 +04:00
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if(!$user) {
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2012-09-13 19:18:38 +04:00
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return false;
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} else {
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2013-02-09 16:00:44 +04:00
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return OC_User::isAdminUser($user);
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2012-09-13 19:18:38 +04:00
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}
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2012-09-13 13:41:20 +04:00
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break;
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default:
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// oops looks like invalid level supplied
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return false;
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break;
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}
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2013-01-25 16:48:59 +04:00
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}
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2012-09-13 13:41:20 +04:00
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/**
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2012-09-13 19:18:38 +04:00
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* http basic auth
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* @return string|false (username, or false on failure)
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2012-09-13 13:41:20 +04:00
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*/
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2013-10-21 20:58:46 +04:00
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private static function loginUser(){
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// basic auth
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2012-12-31 19:47:15 +04:00
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$authUser = isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : '';
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$authPw = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
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2013-10-21 20:58:46 +04:00
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$return = OC_User::login($authUser, $authPw);
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if ($return === true) {
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self::$logoutRequired = true;
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2013-11-08 14:24:19 +04:00
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// initialize the user's filesystem
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\OC_Util::setUpFS(\OC_User::getUser());
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2013-10-21 20:58:46 +04:00
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return $authUser;
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}
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// reuse existing login
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$loggedIn = OC_User::isLoggedIn();
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2013-10-31 00:07:19 +04:00
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$ocsApiRequest = isset($_SERVER['HTTP_OCS_APIREQUEST']) ? $_SERVER['HTTP_OCS_APIREQUEST'] === 'true' : false;
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2013-10-30 02:07:27 +04:00
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if ($loggedIn === true && $ocsApiRequest) {
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2013-11-08 14:24:19 +04:00
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// initialize the user's filesystem
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\OC_Util::setUpFS(\OC_User::getUser());
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|
|
2013-10-21 20:58:46 +04:00
|
|
|
return OC_User::getUser();
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
2012-09-13 13:41:20 +04:00
|
|
|
}
|
2013-01-25 16:48:59 +04:00
|
|
|
|
2012-07-29 01:50:40 +04:00
|
|
|
/**
|
2012-12-31 19:47:15 +04:00
|
|
|
* respond to a call
|
2013-01-25 16:48:59 +04:00
|
|
|
* @param OC_OCS_Result $result
|
2012-12-31 19:47:15 +04:00
|
|
|
* @param string $format the format xml|json
|
|
|
|
*/
|
|
|
|
private static function respond($result, $format='xml') {
|
2013-01-25 16:48:59 +04:00
|
|
|
// Send 401 headers if unauthorised
|
|
|
|
if($result->getStatusCode() === self::RESPOND_UNAUTHORISED) {
|
|
|
|
header('WWW-Authenticate: Basic realm="Authorisation Required"');
|
|
|
|
header('HTTP/1.0 401 Unauthorized');
|
|
|
|
}
|
|
|
|
$response = array(
|
|
|
|
'ocs' => array(
|
|
|
|
'meta' => $result->getMeta(),
|
|
|
|
'data' => $result->getData(),
|
|
|
|
),
|
|
|
|
);
|
2012-07-30 23:03:41 +04:00
|
|
|
if ($format == 'json') {
|
2012-08-01 21:48:51 +04:00
|
|
|
OC_JSON::encodedPrint($response);
|
|
|
|
} else if ($format == 'xml') {
|
|
|
|
header('Content-type: text/xml; charset=UTF-8');
|
|
|
|
$writer = new XMLWriter();
|
|
|
|
$writer->openMemory();
|
|
|
|
$writer->setIndent( true );
|
|
|
|
$writer->startDocument();
|
|
|
|
self::toXML($response, $writer);
|
|
|
|
$writer->endDocument();
|
|
|
|
echo $writer->outputMemory(true);
|
2012-07-30 23:03:41 +04:00
|
|
|
}
|
2012-07-29 01:50:40 +04:00
|
|
|
}
|
2012-08-01 21:48:51 +04:00
|
|
|
|
2012-12-31 19:47:15 +04:00
|
|
|
private static function toXML($array, $writer) {
|
2012-08-01 21:48:51 +04:00
|
|
|
foreach($array as $k => $v) {
|
2013-01-25 16:48:59 +04:00
|
|
|
if ($k[0] === '@') {
|
|
|
|
$writer->writeAttribute(substr($k, 1), $v);
|
|
|
|
continue;
|
|
|
|
} else if (is_numeric($k)) {
|
2012-08-02 19:48:09 +04:00
|
|
|
$k = 'element';
|
|
|
|
}
|
2013-01-25 16:48:59 +04:00
|
|
|
if(is_array($v)) {
|
2012-08-01 21:48:51 +04:00
|
|
|
$writer->startElement($k);
|
|
|
|
self::toXML($v, $writer);
|
|
|
|
$writer->endElement();
|
|
|
|
} else {
|
|
|
|
$writer->writeElement($k, $v);
|
|
|
|
}
|
|
|
|
}
|
2012-09-14 17:41:06 +04:00
|
|
|
}
|
2013-01-25 16:48:59 +04:00
|
|
|
|
2012-07-30 23:03:41 +04:00
|
|
|
}
|