Sets the correct output buffering handler to send a compressed response. Responses will
be compressed with zlib, if the extension is available.
/**
* Sends an asset file to the client
*
* @param \Cake\Network\Request $request The request object to use.
* @param \Cake\Network\Response $response The response object to use.
* @param string $assetFile Path to the asset file in the file system
* @param string $ext The extension of the file to determine its mime type
* @return void
*/
protected function _deliverAsset(Request $request, Response $response, $assetFile, $ext)
{
$compressionEnabled = $response->compress();
if ($response->type($ext) === $ext) {
$contentType = 'application/octet-stream';
$agent = $request->env('HTTP_USER_AGENT');
if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent) || preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
$contentType = 'application/octetstream';
}
$response->type($contentType);
}
if (!$compressionEnabled) {
$response->header('Content-Length', filesize($assetFile));
}
// $response->cache(filemtime($assetFile), $this->_cacheTime);
$response->sendHeaders();
readfile($assetFile);
if ($compressionEnabled) {
ob_end_flush();
}
}
/**
* Tests the compress method
*
* @return void
*/
public function testCompress()
{
$this->skipIf(defined('HHVM_VERSION'), 'HHVM does not implement ob_gzhandler');
$response = new Response();
if (ini_get("zlib.output_compression") === '1' || !extension_loaded("zlib")) {
$this->assertFalse($response->compress());
$this->markTestSkipped('Is not possible to test output compression');
}
$_SERVER['HTTP_ACCEPT_ENCODING'] = '';
$result = $response->compress();
$this->assertFalse($result);
$_SERVER['HTTP_ACCEPT_ENCODING'] = 'gzip';
$result = $response->compress();
$this->assertTrue($result);
$this->assertTrue(in_array('ob_gzhandler', ob_list_handlers()));
ob_get_clean();
}
/**
* Sends an asset file to the client
*
* @param \Cake\Network\Request $request The request object to use.
* @param \Cake\Network\Response $response The response object to use.
* @param string $assetFile Path to the asset file in the file system
* @param string $ext The extension of the file to determine its mime type
* @return void
*/
protected function _deliverCacheFile(Request $request, Response $response, $file, $ext)
{
$compressionEnabled = $response->compress();
if ($response->type($ext) === $ext) {
$contentType = 'application/octet-stream';
$agent = $request->env('HTTP_USER_AGENT');
if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent) || preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
$contentType = 'application/octetstream';
}
$response->type($contentType);
}
if (!$compressionEnabled) {
$response->header('Content-Length', filesize($file));
}
$content = file_get_contents($file);
$cacheInfo = $this->extractCacheInfo($content);
$modifiedTime = filemtime($file);
$cacheTime = $cacheInfo['time'];
if (!$cacheTime) {
$cacheTime = $this->_cacheTime;
}
$response->cache($modifiedTime, $cacheTime);
$response->type($cacheInfo['ext']);
if (Configure::read('debug') || $this->config('debug')) {
if ($cacheInfo['ext'] === 'html') {
$content = '<!--created:' . $modifiedTime . '-->' . $content;
}
}
$response->body($content);
}
/**
* Tests the compress method
*
* @return void
*/
public function testCompress()
{
if (php_sapi_name() !== 'cli') {
$this->markTestSkipped('The response compression can only be tested in cli.');
}
$response = new Response();
if (ini_get("zlib.output_compression") === '1' || !extension_loaded("zlib")) {
$this->assertFalse($response->compress());
$this->markTestSkipped('Is not possible to test output compression');
}
$_SERVER['HTTP_ACCEPT_ENCODING'] = '';
$result = $response->compress();
$this->assertFalse($result);
$_SERVER['HTTP_ACCEPT_ENCODING'] = 'gzip';
$result = $response->compress();
$this->assertTrue($result);
$this->assertTrue(in_array('ob_gzhandler', ob_list_handlers()));
ob_get_clean();
}
