ion/src/View/HttpView.php

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<?php declare(strict_types=1);
/**
* Ion
*
* Building blocks for web development
*
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* PHP version 7
*
* @package Ion
* @author Timothy J. Warren <tim@timshomepage.net>
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* @copyright 2015 - 2017 Timothy J. Warren
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @version 2.2.0
* @link https://git.timshomepage.net/timw4mail/ion
*/
namespace Aviat\Ion\View;
use Zend\Diactoros\Response\SapiEmitter;
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use Aviat\Ion\Exception\DoubleRenderException;
use Aviat\Ion\View as BaseView;
/**
* Base view class for Http output
*/
class HttpView extends BaseView {
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/**
* Response mime type
*
* @var string
*/
protected $contentType = '';
/**
* Do a redirect
*
* @param string $url
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* @param int $code
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* @throws \InvalidArgumentException
* @return void
*/
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public function redirect(string $url, int $code): void
{
ob_start();
$this->setStatusCode($code);
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$message = $this->response->getReasonPhrase();
$this->response = $this->response->withHeader('Location', $url);
if (PHP_SAPI !== 'cli')
{
header("HTTP/1.1 ${code} ${message}");
header("Location: {$url}");
}
$this->hasRendered = TRUE;
ob_end_clean();
}
/**
* Set the status code of the request
*
* @param int $code
* @return HttpView
*/
public function setStatusCode(int $code): HttpView
{
$this->response = $this->response->withStatus($code)
->withProtocolVersion('1.1');
return $this;
}
/**
* Send output to client. As it renders the view,
* any attempt to call again will result in a DoubleRenderException.
*
* @throws DoubleRenderException
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* @throws \InvalidArgumentException
* @return void
*/
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public function send(): void
{
$this->output();
}
/**
* Send the appropriate response
*
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* @throws DoubleRenderException
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* @throws \InvalidArgumentException
* @return void
*/
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protected function output(): void
{
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if ($this->hasRendered)
{
throw new DoubleRenderException();
}
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$this->response = $this->response
->withHeader('Content-type', "{$this->contentType};charset=utf-8")
->withHeader('X-Content-Type-Options', 'nosniff')
->withHeader('X-XSS-Protection', '1;mode=block')
->withHeader('X-Frame-Options', 'SAMEORIGIN');
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(new SapiEmitter())->emit($this->response);
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$this->hasRendered = TRUE;
}
}