<?php
/**
* SendResponseTrait.php
*
* Send Jaxon ajax response.
*
* @package jaxon-core
* @author Jared White
* @author J. Max Wilson
* @author Thierry Feuzeu
* @copyright Copyright (c) 2005-2007 by Jared White & J. Max Wilson
* @copyright 2022 Thierry Feuzeu <thierry.feuzeu@gmail.com>
* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
* @link https://github.com/jaxon-php/jaxon-core
*/
namespace Jaxon\App\Ajax\Traits;
use Jaxon\App\Config\ConfigManager;
use Jaxon\App\I18n\Translator;
use Jaxon\Di\Container;
use Jaxon\Exception\RequestException;
use Jaxon\Response\Manager\ResponseManager;
use function gmdate;
use function header;
use function headers_sent;
use function http_response_code;
use function intval;
trait SendResponseTrait
{
/**
* @return Container
*/
abstract public function di(): Container;
/**
* @return ConfigManager
*/
abstract public function config(): ConfigManager;
/**
* @return Translator
*/
abstract public function translator(): Translator;
/**
* @return ResponseManager
*/
abstract public function getResponseManager(): ResponseManager;
/**
* Prints the response to the output stream, thus sending the response to the browser
*
* @return mixed
* @throws RequestException
*/
public function httpResponse(string $sCode = '200'): mixed
{
if(!$this->config()->getOption('core.response.send', false))
{
return null;
}
// Check to see if headers have already been sent out, in which case we can't do our job
if(headers_sent($sFilename, $nLineNumber))
{
throw new RequestException($this->translator()
->trans('errors.output.already-sent', [
'location' => "$sFilename:$nLineNumber",
]) . "\n" . $this->translator()->trans('errors.output.advice'));
}
if(empty($sContent = $this->getResponseManager()->getOutput()))
{
return null;
}
// Set the HTTP response code
http_response_code(intval($sCode));
if($this->di()->getRequest()->getMethod() === 'GET')
{
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
}
header('Content-Type: ' . $this->getResponseManager()->getContentType());
print $sContent;
if($this->config()->getOption('core.process.exit', false))
{
exit();
}
return null;
}
}
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