/**
* Sets the response header based on type map index name. This wraps several methods
* available on CakeResponse. It also allows you to use Content-Type aliases.
*
* @param string|array $type Friendly type name, i.e. 'html' or 'xml', or a full content-type,
* like 'application/x-shockwave'.
* @param array $options If $type is a friendly type name that is associated with
* more than one type of content, $index is used to select which content-type to use.
* @return boolean Returns false if the friendly type name given in $type does
* not exist in the type map, or if the Content-type header has
* already been set by this method.
* @see RequestHandlerComponent::setContent()
*/
public function respondAs($type, $options = array())
{
$defaults = array('index' => null, 'charset' => null, 'attachment' => false);
$options = $options + $defaults;
$cType = $type;
if (strpos($type, '/') === false) {
$cType = $this->response->getMimeType($type);
}
if (is_array($cType)) {
if (isset($cType[$options['index']])) {
$cType = $cType[$options['index']];
}
if ($this->prefers($cType)) {
$cType = $this->prefers($cType);
} else {
$cType = $cType[0];
}
}
if (!$type) {
return false;
}
if (empty($this->request->params['requested'])) {
$this->response->type($cType);
}
if (!empty($options['charset'])) {
$this->response->charset($options['charset']);
}
if (!empty($options['attachment'])) {
$this->response->download($options['attachment']);
}
return true;
}
/**
* Tests the download method
*
*/
public function testDownload()
{
$response = new CakeResponse();
$expected = array('Content-Disposition' => 'attachment; filename="myfile.mp3"');
$response->download('myfile.mp3');
$this->assertEquals($expected, $response->header());
}
/**
* Display or download the given file
*
* @param string $view Not used
* @param string $layout Not used
* @return mixed
* @throws NotFoundException
*/
public function render($view = null, $layout = null)
{
$name = $download = $extension = $id = $modified = $path = $cache = $mimeType = $compress = null;
extract($this->viewVars, EXTR_OVERWRITE);
if (is_dir($path)) {
$path = $path . $id;
} else {
$path = APP . $path . $id;
}
if (!is_file($path)) {
if (Configure::read('debug')) {
throw new NotFoundException(sprintf('The requested file %s was not found', $path));
}
throw new NotFoundException('The requested file was not found');
}
if (is_array($mimeType)) {
$this->response->type($mimeType);
}
if (isset($extension) && $this->_isActive()) {
$extension = strtolower($extension);
$chunkSize = 8192;
$buffer = '';
$fileSize = @filesize($path);
$handle = fopen($path, 'rb');
if ($handle === false) {
return false;
}
if (!empty($modified) && !is_numeric($modified)) {
$modified = strtotime($modified, time());
} else {
$modified = time();
}
if ($this->response->type($extension) === false) {
$download = true;
}
if ($cache) {
$this->response->cache($modified, $cache);
} else {
$this->response->header(array('Date' => gmdate('D, d M Y H:i:s', time()) . ' GMT', 'Expires' => '0', 'Cache-Control' => 'private, must-revalidate, post-check=0, pre-check=0', 'Pragma' => 'no-cache'));
}
if ($download) {
$agent = env('HTTP_USER_AGENT');
if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent)) {
$contentType = 'application/octetstream';
} else {
if (preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
$contentType = 'application/force-download';
}
}
if (!empty($contentType)) {
$this->response->type($contentType);
}
if (is_null($name)) {
$name = $id;
}
$this->response->download($name);
$this->response->header(array('Accept-Ranges' => 'bytes'));
$httpRange = env('HTTP_RANGE');
if (isset($httpRange)) {
list($toss, $range) = explode('=', $httpRange);
$size = $fileSize - 1;
$length = $fileSize - $range;
$this->response->header(array('Content-Length' => $length, 'Content-Range' => 'bytes ' . $range . $size . '/' . $fileSize));
$this->response->statusCode(206);
fseek($handle, $range);
} else {
$this->response->header('Content-Length', $fileSize);
}
} else {
$this->response->header(array('Content-Length' => $fileSize));
}
$this->_clearBuffer();
if ($compress) {
$this->_compressionEnabled = $this->response->compress();
}
$this->response->send();
return $this->_sendFile($handle);
}
return false;
}
