componentcontroller.php

<?php
namespace Bitrix\Main\UserConsent\Internals;
 
use Bitrix\Main\Context;
use Bitrix\Main\HttpRequest;
use Bitrix\Main\Web\Json;
use Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
abstract class ComponentController
{
    protected $errors = array();
    protected $action = null;
    protected $responseData = array();
    protected $requestData = array();
 
    protected $request = array();
 
    abstract protected function getActions();
    abstract protected function checkPermissions();
 
    protected function prepareRequestData()
    {
 
    }
 
    protected function giveResponse()
    {
        global $APPLICATION;
        $APPLICATION->restartBuffer();
 
        header('Content-Type:application/json; charset=UTF-8');
        echo Json::encode(
            $this->responseData + array(
                'error' => $this->hasErrors(),
                'text' => implode('<br>', $this->errors),
            )
        );
 
        \CMain::finalActions();
        exit;
    }
 
    protected function getActionCall()
    {
        return array($this, $this->action);
    }
 
    protected function hasErrors()
    {
        return !empty($this->errors);
    }
 
    protected function check()
    {
        if(!$this->checkPermissions())
        {
            $this->errors[] = Loc::getMessage('MAIN_PERMISSION_DENIED');
        }
        if(!in_array($this->action, $this->getActions()))
        {
            $this->errors[] = 'Action "' . $this->action . '" not found.';
        }
        elseif(!check_bitrix_sessid() || !$this->request->isPost())
        {
            $this->errors[] = 'Security error.';
        }
        elseif(!is_callable($this->getActionCall()))
        {
            $this->errors[] = 'Action method "' . $this->action . '" not found.';
        }
 
        return !$this->hasErrors();
    }
 
    public function exec()
    {
        $this->request = Context::getCurrent()->getRequest();
        $this->action = $this->request->get('action');
 
        $this->prepareRequestData();
 
        if($this->check())
        {
            call_user_func_array($this->getActionCall(), array($this->requestData));
        }
        $this->giveResponse();
    }
}