/**
* Initialise redirect request.
*
* Note that the redirect URL must be an ABSOLUTE rather than relative URL.
* IIS under CGI mode has a bug which will crash when redirecting to
* relative URLs.
*
* @param string $url URL to redirect to
*/
function __construct($url)
{
$f = new T_Filter_Xhtml();
$content = '<html><head>' . '<meta http-equiv="Refresh" content="1;url=' . _transform($url, $f) . '">' . '</head><body>' . '<a href="' . _transform($url, $f) . '">Continue ›</a>' . '</body></html>';
parent::__construct(303);
$this->setHeader("Location", $url);
$this->setContent($content);
}
/**
* Pre-filter issues cache headers.
*
* @param T_Response $response encapsulated response to filter
*/
protected function doPreFilter(T_Response $response)
{
if ($this->cache_time <= 0) {
$response->setHeader('Cache-Control', 'no-cache, must-revalidate');
// HTTP/1.1 uses cache control
$response->setHeader('Pragma', 'no-cache');
// HTTP/1.0 uses pragma
$expiry = time() - 60 * 60 * 24 * 30;
// expired 30 days ago.
} else {
$state = "{$this->type}, max-age={$this->cache_time}, must-revalidate";
$response->setHeader('Cache-Control', $state);
$response->setHeader('Pragma', $this->type);
$expiry = time() + $this->cache_time;
}
$date = gmdate('D, d M Y H:i:s \\G\\M\\T', $expiry);
$response->setHeader('Expires', $date);
}
function testisAbortedReturnTrueOnceIsAborted()
{
$this->response->appendFilter($this->filter[0]);
$this->response->abort();
$this->assertTrue($this->response->isAborted());
}
/**
* Error occurred and alternative response required.
*
* If a custom 404 response, etc. is required, this controller method
* can be overridden to build the custom response.
*
* @param int $status Status code (e.g. 404,etc)
* @param T_Response $response old response (to abort)
*/
protected function respondWithStatus($status, T_Response $response)
{
$response->abort();
throw $this->like('T_Response', array('status' => $status));
}
/**
* Adds Etag and last-modified headers to response.
*
* @param T_Response $response Response to add headers to
*/
protected function setHeader(T_Response $response)
{
$date = gmdate('D, d M Y H:i:s \\G\\M\\T', $this->lm);
$response->setHeader('Last-Modified', $date);
$response->setHeader('Etag', $this->getEtag());
}
/**
* Add aborted flag to abort method
*/
function abort()
{
$this->is_aborted = true;
parent::abort();
}
/**
* Prepare-filter forwards to get if form was present and valid.
*
* At this point, the request has not been sent, but has been created and is about to be.
* If the request is valid, we want to skip out *before* the form is sent and simply
* redirect.
*
* @param T_Response $response encapsulated response to filter
*/
protected function doPrepareFilter(T_Response $response)
{
if ($this->form->isPresent() && $this->form->isValid() && $this->forward) {
// POST request is successful, therefore redirect to GET so the
// back button cannot be used to repeat the request.
$response->abort();
throw new T_Response_Redirect($this->forward->getUrl());
}
}
/**
* Pre-filter starts buffer.
*
* @param T_Response $response encapsulated response to filter
*/
protected function doPreFilter(T_Response $response)
{
$this->response = $response;
if ($this->isZlibCompressed()) {
return;
}
ob_start();
if ($this->clientAcceptsCompression()) {
/* Headers must be sent in the pre-filter.
(post filter is executed after headers sent) */
$response->setHeader('Content-Encoding', 'gzip');
}
}
