private static function _doRedirect($url, $parameters = array())
{
assert('is_string($url)');
assert('!empty($url)');
assert('is_array($parameters)');
if (!empty($parameters)) {
$url = self::addURLparameter($url, $parameters);
}
/* Set the HTTP result code. This is either 303 See Other or
* 302 Found. HTTP 303 See Other is sent if the HTTP version
* is HTTP/1.1 and the request type was a POST request.
*/
if ($_SERVER['SERVER_PROTOCOL'] === 'HTTP/1.1' && $_SERVER['REQUEST_METHOD'] === 'POST') {
$code = 303;
} else {
$code = 302;
}
if (strlen($url) > 2048) {
SimpleSAML\Logger::warning('Redirecting to a URL longer than 2048 bytes.');
}
// Set the location header
header('Location: ' . $url, true, $code);
// Disable caching of this response
header('Pragma: no-cache');
header('Cache-Control: no-cache, must-revalidate');
// Show a minimal web page with a clickable link to the URL
echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"' . ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' . "\n";
echo '<html xmlns="http://www.w3.org/1999/xhtml">';
echo '<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Redirect</title>
</head>';
echo '<body>';
echo '<h1>Redirect</h1>';
echo '<p>';
echo 'You were redirected to: ';
echo '<a id="redirlink" href="' . htmlspecialchars($url) . '">' . htmlspecialchars($url) . '</a>';
echo '<script type="text/javascript">document.getElementById("redirlink").focus();</script>';
echo '</p>';
echo '</body>';
echo '</html>';
// End script execution
exit;
}
