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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation;
/**
* RedirectResponse represents an HTTP response doing a redirect.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class RedirectResponse extends Response
{
protected $targetUrl;
/**
* Creates a redirect response so that it conforms to the rules defined for a redirect status code.
*
* @param string $url The URL to redirect to. The URL should be a full URL, with schema etc.,
* but practically every browser redirects on paths only as well
* @param int $status The status code (302 by default)
* @param array $headers The headers (Location is always set to the given URL)
*
* @throws \InvalidArgumentException
*
* @see https://tools.ietf.org/html/rfc2616#section-10.3
*/
public function __construct(?string $url, int $status = 302, array $headers = [])
{
if (null === $url) {
@trigger_error(sprintf('Passing a null url when instantiating a "%s" is deprecated since Symfony 4.4.', __CLASS__), \E_USER_DEPRECATED);
$url = '';
}
parent::__construct('', $status, $headers);
$this->setTargetUrl($url);
if (!$this->isRedirect()) {
throw new \InvalidArgumentException(sprintf('The HTTP status code is not a redirect ("%s" given).', $status));
}
if (301 == $status && !\array_key_exists('cache-control', array_change_key_case($headers, \CASE_LOWER))) {
$this->headers->remove('cache-control');
}
}
/**
* Factory method for chainability.
*
* @param string $url The url to redirect to
* @param int $status The response status code
* @param array $headers An array of response headers
*
* @return static
*/
public static function create($url = '', $status = 302, $headers = [])
{
return new static($url, $status, $headers);
}
/**
* Returns the target URL.
*
* @return string target URL
*/
public function getTargetUrl()
{
return $this->targetUrl;
}
/**
* Sets the redirect target of this response.
*
* @param string $url The URL to redirect to
*
* @return $this
*
* @throws \InvalidArgumentException
*/
public function setTargetUrl($url)
{
if ('' === ($url ?? '')) {
throw new \InvalidArgumentException('Cannot redirect to an empty URL.');
}
$this->targetUrl = $url;
$this->setContent(
sprintf('<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<meta http-equiv="refresh" content="0;url=\'%1$s\'" />
<title>Redirecting to %1$s</title>
</head>
<body>
Redirecting to <a href="%1$s">%1$s</a>.
</body>
</html>', htmlspecialchars($url, \ENT_QUOTES, 'UTF-8')));
$this->headers->set('Location', $url);
return $this;
}
}