/**
* Parse Dispatcher params to array
* @param DispatcherInterface $dispatcher
* @return array
*/
public function getInterceptorParams(DispatcherInterface $dispatcher)
{
$interceptorConfig = strtolower($dispatcher->getParam(self::INTERCEPTOR_KEY));
if (!$interceptorConfig) {
return array();
}
parse_str($interceptorConfig, $interceptorParams);
//Make default
$interceptorParams = array_merge(array('lifetime' => 0, 'methods' => 'get', 'ignore_query_keys' => '_', 'jsonp_callback_key' => 'callback', 'format' => 'text'), $interceptorParams);
$lifetime = $interceptorParams['lifetime'] = (int) $interceptorParams['lifetime'];
if ($lifetime <= 0) {
return array();
}
$methodsAllow = $interceptorParams['methods'] ? explode('|', $interceptorParams['methods']) : array('get');
$interceptorParams['methods'] = $methodsAllow;
$ignoreQueryKeys = $interceptorParams['ignore_query_keys'] ? explode('|', $interceptorParams['ignore_query_keys']) : array();
$interceptorParams['ignore_query_keys'] = $ignoreQueryKeys;
return $interceptorParams;
}
/**
*
*
* @param $event
* @param DispatcherInterface $dispatcher
*/
public function beforeExecuteRoute(Event $event, DispatcherInterface $dispatcher)
{
/** @var \Phalcon\DI $di */
$di = $dispatcher->getDI();
$config = $di->getConfig();
// cache is disable
if (!$config->cache->enable) {
return;
}
$dispatch_cache_config = $dispatcher->getParam('_dispatch_cache');
if (!$dispatch_cache_config) {
return;
}
/** @var \Phalcon\Http\Request $request */
$request = $di->getRequest();
$params = $this->parseParams($dispatch_cache_config);
$lifetime = intval($params['lifetime']);
$methodsAllow = $params['methods'];
if ($lifetime <= 0) {
return;
}
if (!$methodsAllow) {
$methodsAllow = 'get';
}
$methodsAllow = explode('|', strtolower($methodsAllow));
$requestMethod = strtolower($request->getMethod());
if (!in_array($requestMethod, $methodsAllow)) {
return;
}
$cache_key_prefix = $_SERVER['HTTP_HOST'] . preg_replace('/[&?]_eva_refresh_dispatch_cache\\=1/i', '', $_SERVER['REQUEST_URI']) . file_get_contents('php://input');
$cache_key_prefix = md5($cache_key_prefix);
/** @var \Phalcon\Cache\Backend\Memcache $cache */
$cache = $di->getViewCache();
$bodyKey = $cache_key_prefix . '_b';
$headersKey = $cache_key_prefix . '_h';
$bodyCached = $cache->get($bodyKey);
$headersCached = $cache->get($headersKey);
$hasCached = $headersCached && $bodyCached;
// cache missing
if ($di->getRequest()->getQuery('_eva_refresh_dispatch_cache') || !$hasCached) {
/** @var \Phalcon\Events\Manager $eventsManager */
$eventsManager = $di->get('eventsManager');
$eventsManager->attach('application:beforeSendResponse', function ($event, $application) use($di, $headersKey, $bodyKey, $lifetime, $cache) {
/** @var \Phalcon\Http\ResponseInterface $response */
$response = $di->getResponse();
$body = $response->getContent();
$headers = $response->getHeaders()->toArray();
!$headers && ($headers = array());
$headersByHeaderFunc = headers_list();
if ($headersByHeaderFunc) {
$headers = array_merge($headers, $headersByHeaderFunc);
}
$headers['Eva-Dsp-Cache'] = time();
$cache->save($bodyKey, $body, $lifetime);
$cache->save($headersKey, serialize($headers), $lifetime);
});
return;
}
/** @var \Phalcon\Http\ResponseInterface $response */
$response = $di->getResponse();
if ($hasCached) {
if ($headersCached) {
$headersCached = unserialize($headersCached);
isset($headersCached['Eva-Dsp-Cache']) && ($headersCached['Eva-Dsp-Cache'] = date('Y-m-d H:i:s', $headersCached['Eva-Dsp-Cache']));
foreach ($headersCached as $_k => $_herder) {
if (is_int($_k)) {
$response->setRawHeader($_herder);
} else {
$response->setHeader($_k, $_herder);
}
}
}
$response->setContent($bodyCached);
$response->send();
exit;
}
}
