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<?php
/**
* @author Bart Visscher <bartv@thisnet.nl>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Felix Moeller <mail@felixmoeller.de>
* @author Georg Ehrke <georg@owncloud.com>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Thomas Tanghus <thomas@tanghus.net>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
class OC_JSON{
static protected $send_content_type_header = false;
/**
* set Content-Type header to jsonrequest
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function setContentTypeHeader($type='application/json') {
if (!self::$send_content_type_header) {
// We send json data
header( 'Content-Type: '.$type . '; charset=utf-8');
self::$send_content_type_header = true;
}
}
/**
* Check if the app is enabled, send json error msg if not
* @param string $app
* @deprecated Use the AppFramework instead. It will automatically check if the app is enabled.
*/
public static function checkAppEnabled($app) {
if( !OC_App::isEnabled($app)) {
$l = \OC::$server->getL10N('lib');
self::error(array( 'data' => array( 'message' => $l->t('Application is not enabled'), 'error' => 'application_not_enabled' )));
exit();
}
}
/**
* Check if the user is logged in, send json error msg if not
* @deprecated Use annotation based ACLs from the AppFramework instead
*/
public static function checkLoggedIn() {
if( !OC_User::isLoggedIn()) {
$l = \OC::$server->getL10N('lib');
self::error(array( 'data' => array( 'message' => $l->t('Authentication error'), 'error' => 'authentication_error' )));
exit();
}
}
/**
* Check an ajax get/post call if the request token is valid, send json error msg if not.
* @deprecated Use annotation based CSRF checks from the AppFramework instead
*/
public static function callCheck() {
if( !OC_Util::isCallRegistered()) {
$l = \OC::$server->getL10N('lib');
self::error(array( 'data' => array( 'message' => $l->t('Token expired. Please reload page.'), 'error' => 'token_expired' )));
exit();
}
}
/**
* Check if the user is a admin, send json error msg if not.
* @deprecated Use annotation based ACLs from the AppFramework instead
*/
public static function checkAdminUser() {
if( !OC_User::isAdminUser(OC_User::getUser())) {
$l = \OC::$server->getL10N('lib');
self::error(array( 'data' => array( 'message' => $l->t('Authentication error'), 'error' => 'authentication_error' )));
exit();
}
}
/**
* Check is a given user exists - send json error msg if not
* @param string $user
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function checkUserExists($user) {
if (!OCP\User::userExists($user)) {
$l = \OC::$server->getL10N('lib');
OCP\JSON::error(array('data' => array('message' => $l->t('Unknown user'), 'error' => 'unknown_user' )));
exit;
}
}
/**
* Check if the user is a subadmin, send json error msg if not
* @deprecated Use annotation based ACLs from the AppFramework instead
*/
public static function checkSubAdminUser() {
if(!OC_SubAdmin::isSubAdmin(OC_User::getUser())) {
$l = \OC::$server->getL10N('lib');
self::error(array( 'data' => array( 'message' => $l->t('Authentication error'), 'error' => 'authentication_error' )));
exit();
}
}
/**
* Send json error msg
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function error($data = array()) {
$data['status'] = 'error';
self::encodedPrint($data);
}
/**
* Send json success msg
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function success($data = array()) {
$data['status'] = 'success';
self::encodedPrint($data);
}
/**
* Convert OC_L10N_String to string, for use in json encodings
*/
protected static function to_string(&$value) {
if ($value instanceof OC_L10N_String) {
$value = (string)$value;
}
}
/**
* Encode and print $data in json format
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function encodedPrint($data, $setContentType=true) {
if($setContentType) {
self::setContentTypeHeader();
}
echo self::encode($data);
}
/**
* Encode JSON
* @deprecated Use a AppFramework JSONResponse instead
*/
public static function encode($data) {
if (is_array($data)) {
array_walk_recursive($data, array('OC_JSON', 'to_string'));
}
return json_encode($data);
}
}
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