joomla-component/admin/controllers/ajax.json.php

<?php
/*----------------------------------------------------------------------------------|  io.vdm.dev  |----/
			Vast Development Method
/-------------------------------------------------------------------------------------------------------/

    @package    getBible.net

    @created    3rd December, 2015
    @author     Llewellyn van der Merwe <https://getbible.net>
    @git        Get Bible <https://git.vdm.dev/getBible>
    @github     Get Bible <https://github.com/getBible>
    @support    Get Bible <https://git.vdm.dev/getBible/support>
    @copyright  Copyright (C) 2015. All Rights Reserved
    @license    GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html

/------------------------------------------------------------------------------------------------------*/

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Controller\BaseController;
use Joomla\CMS\Session\Session;
use Joomla\Utilities\ArrayHelper;

/**
 * Getbible Ajax Base Controller
 */
class GetbibleControllerAjax extends BaseController
{
	public function __construct($config)
	{
		parent::__construct($config);
		// make sure all json stuff are set
		Factory::getDocument()->setMimeEncoding( 'application/json' );
		// get the application
		$app = Factory::getApplication();
		$app->setHeader('Content-Disposition','attachment;filename="getajax.json"');
		$app->setHeader('Access-Control-Allow-Origin', '*');
		// load the tasks 
		$this->registerTask('isNew', 'ajax');
		$this->registerTask('isRead', 'ajax');
		$this->registerTask('getWiki', 'ajax');
		$this->registerTask('getVersion', 'ajax');
	}

	public function ajax()
	{
		// get the user for later use
		$user         = Factory::getUser();
		// get the input values
		$jinput       = Factory::getApplication()->input;
		// check if we should return raw
		$returnRaw    = $jinput->get('raw', false, 'BOOLEAN');
		// return to a callback function
		$callback     = $jinput->get('callback', null, 'CMD');
		// Check Token!
		$token        = Session::getFormToken();
		$call_token   = $jinput->get('token', 0, 'ALNUM');
		if($jinput->get($token, 0, 'ALNUM') || $token === $call_token)
		{
			// get the task
			$task = $this->getTask();
			switch($task)
			{
				case 'isNew':
					try
					{
						$noticeValue = $jinput->get('notice', NULL, 'STRING');
						if($noticeValue && $user->id != 0)
						{
							$result = $this->getModel('ajax')->isNew($noticeValue);
						}
						else
						{
							$result = false;
						}
						if($callback)
						{
							echo $callback . "(".json_encode($result).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($result);
						}
						else
						{
							echo "(".json_encode($result).");";
						}
					}
					catch(Exception $e)
					{
						if($callback)
						{
							echo $callback."(".json_encode($e).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($e);
						}
						else
						{
							echo "(".json_encode($e).");";
						}
					}
				break;
				case 'isRead':
					try
					{
						$noticeValue = $jinput->get('notice', NULL, 'STRING');
						if($noticeValue && $user->id != 0)
						{
							$result = $this->getModel('ajax')->isRead($noticeValue);
						}
						else
						{
							$result = false;
						}
						if($callback)
						{
							echo $callback . "(".json_encode($result).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($result);
						}
						else
						{
							echo "(".json_encode($result).");";
						}
					}
					catch(Exception $e)
					{
						if($callback)
						{
							echo $callback."(".json_encode($e).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($e);
						}
						else
						{
							echo "(".json_encode($e).");";
						}
					}
				break;
				case 'getWiki':
					try
					{
						$nameValue = $jinput->get('name', NULL, 'WORD');
						if($nameValue && $user->id != 0)
						{
							$result = $this->getModel('ajax')->getWiki($nameValue);
						}
						else
						{
							$result = false;
						}
						if($callback)
						{
							echo $callback . "(".json_encode($result).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($result);
						}
						else
						{
							echo "(".json_encode($result).");";
						}
					}
					catch(Exception $e)
					{
						if($callback)
						{
							echo $callback."(".json_encode($e).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($e);
						}
						else
						{
							echo "(".json_encode($e).");";
						}
					}
				break;
				case 'getVersion':
					try
					{
						$versionValue = $jinput->get('version', NULL, 'INT');
						if($versionValue && $user->id != 0)
						{
							$result = $this->getModel('ajax')->getVersion($versionValue);
						}
						else
						{
							$result = false;
						}
						if($callback)
						{
							echo $callback . "(".json_encode($result).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($result);
						}
						else
						{
							echo "(".json_encode($result).");";
						}
					}
					catch(Exception $e)
					{
						if($callback)
						{
							echo $callback."(".json_encode($e).");";
						}
						elseif($returnRaw)
						{
							echo json_encode($e);
						}
						else
						{
							echo "(".json_encode($e).");";
						}
					}
				break;
			}
		}
		else
		{
			// return to a callback function
			if($callback)
			{
				echo $callback."(".json_encode(false).");";
			}
			elseif($returnRaw)
			{
				echo json_encode(false);
			}
			else
			{
				echo "(".json_encode(false).");";
			}
		}
	}
}