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json.php

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  • json.php 3.40 KiB
    <?php
    /**
     * Copyright (c) 2011 Bart Visscher <bartv@thisnet.nl>
     * This file is licensed under the Affero General Public License version 3 or
     * later.
     * See the COPYING-README file.
     */
    
    class OC_JSON{
    	static protected $send_content_type_header = false;
    	/**
    	 * set Content-Type header to jsonrequest
    	 */
    	public static function setContentTypeHeader($type='application/json') {
    		if (!self::$send_content_type_header) {
    			// We send json data
    			header( 'Content-Type: '.$type );
    			self::$send_content_type_header = true;
    		}
    	}
    
    	/**
    	* Check if the app is enabled, send json error msg if not
    	*/
    	public static function checkAppEnabled($app) {
    		if( !OC_App::isEnabled($app)) {
    			$l = OC_L10N::get('lib');
    			self::error(array( 'data' => array( 'message' => $l->t('Application is not enabled') )));
    			exit();
    		}
    	}
    
    	/**
    	* Check if the user is logged in, send json error msg if not
    	*/
    	public static function checkLoggedIn() {
    		if( !OC_User::isLoggedIn()) {
    			$l = OC_L10N::get('lib');
    			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
    			exit();
    		}
    	}
    
    	/**
    	 * @brief Check an ajax get/post call if the request token is valid.
    	 * @return json Error msg if not valid.
    	 */
    	public static function callCheck() {
    		if( !OC_Util::isCallRegistered()) {
    			$l = OC_L10N::get('lib');
    			self::error(array( 'data' => array( 'message' => $l->t('Token expired. Please reload page.') )));
    			exit();
    		}
    	}
    
    	/**
    	* Check if the user is a admin, send json error msg if not
    	*/
    	public static function checkAdminUser() {
    		self::checkLoggedIn();
    		self::verifyUser();
    		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )) {
    			$l = OC_L10N::get('lib');
    			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
    			exit();
    		}
    	}
    
    	/**
    	* Check if the user is a subadmin, send json error msg if not