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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 = [])
    {
        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 $url The URL to redirect to
     *
     * @return static
     *
     * @deprecated since Symfony 5.1, use __construct() instead.
     */
    public static function create($url = '', int $status = 302, array $headers = [])
    {
        trigger_deprecation('symfony/http-foundation', '5.1', 'The "%s()" method is deprecated, use "new %s()" instead.', __METHOD__, static::class);

return new static($url, $status, $headers);
    }

/**
     * Returns the target URL.
     *
     * @return string
     */
    public function getTargetUrl()
    {
        return $this->targetUrl;
    }

/**
     * Sets the redirect target of this response.
     *
     * @return $this
     *
     * @throws \InvalidArgumentException
     */
    public function setTargetUrl(string $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;
    }
}