/**
* Class constructor
*
*
* @param Zend_Controller_Request_Abstract $request
* @param Zend_Controller_Response_Abstract $response
* @param array $invokeArgs Any additional invocation arguments
* @return void
*/
public function __construct(\Zend_Controller_Request_Abstract $request, \Zend_Controller_Response_Abstract $response, array $invokeArgs = array())
{
if ($request->isXmlHttpRequest()) {
$response->setHeader('content-type', 'application/x-www-form-urlencoded; charset=iso-8859-1', true);
}
parent::__construct($request, $response, $invokeArgs);
}
/**
* Set the neccessary headers for forcing the download dialog
*
* @param String $bytes The bytes that are to be downloaded
* @param String $filename The filename of the downloaded file
* @param Zend_Controller_Response_Abstract $response The response object
* @return Void
*/
protected function _setHeaders($bytes, $filename, Zend_Controller_Response_Abstract $response)
{
// fix for IE catching or PHP bug issue
$response->setHeader('Pragma', 'public');
// set expiration time
$response->setHeader('Expires', '0');
// browser must download file from server instead of cache
$response->setHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0');
// force download dialog
$response->setHeader('Content-Type', 'application/octet-stream');
// use the Content-Disposition header to supply a recommended filename and
// force the browser to display the save dialog.
$response->setHeader('Content-Disposition', 'attachment; filename="' . basename($filename) . '"');
/*
The Content-transfer-encoding header should be binary, since the file will be read
directly from the disk and the raw bytes passed to the downloading computer.
The Content-length header is useful to set for downloads. The browser will be able to
show a progress meter as a file downloads. The content-length can be determined by
filesize function returns the size of a file.
*/
$response->setHeader('Content-Transfer-Encoding', 'binary');
$response->setHeader('Content-Length', strlen($bytes));
}
/**
* Method build response headers
*
* @param \Zend_Controller_Response_Abstract $response
* @param array $headers
* @return \Extlib\Controller\Action\Helper\File
*/
protected function buildHeaders(\Zend_Controller_Response_Abstract $response, array $headers)
{
foreach ($headers as $header => $value) {
if (!in_array($header, $this->defaultHeaders)) {
$response->setHeader($header, $value);
}
}
return $this;
}
/**
* Hook 4: Called in $this->setResponse.
*
* All resources have been loaded and the $request and $response object have been created.
* Theoretically this event can be triggered multiple times, but this does
* not happen in a standard Zend application.
*
* Not initialized is the $controller object and the routing has not yet been executed.
*
* Previous hook: requestChanged()
* Initialized since: the $this->response object
* Next hook: routeStartup()
*
* @return void
*/
public function responseChanged(\Zend_Controller_Response_Abstract $response)
{
$response->setHeader('Expires', '', true);
}
