/**
* Invalidate a set of cached resources that are part of the application specification itself.
* This includes gadget specs, manifests and message bundles
* @param uris of content to invalidate
* @param token identifying the calling application
*/
function invalidateApplicationResources(array $uris, SecurityToken $token)
{
foreach ($uris as $uri) {
$request = new RemoteContentRequest($uri);
$this->cache->invalidate($request->toHash());
}
}
public static function invalidateGadgetCache(GadgetContext $context)
{
$request = new RemoteContentRequest($context->getUrl());
$cache = Cache::createCache(Shindig_Config::get('data_cache'), 'RemoteContent');
$cacheData = $cache->get($request->toHash());
if ($cacheData) {
$uris = array();
$xml = $cacheData->getResponseContent();
$parserClass = Shindig_Config::get('gadget_spec_parser');
$parser = new $parserClass();
$gadgetSpec = $parser->parse($xml, $context);
if ($gadgetSpec->locales) {
foreach ($gadgetSpec->locales as $locale) {
if (!empty($locale['messages'])) {
$uris[] = RemoteContentRequest::transformRelativeUrl($locale['messages'], $context->getUrl());
}
}
}
if (is_array($gadgetSpec->preloads)) {
foreach ($gadgetSpec->preloads as $preload) {
if (!empty($preload['href'])) {
$uris[] = RemoteContentRequest::transformRelativeUrl($preload['href'], $context->getUrl());
}
}
}
if (is_array($gadgetSpec->templatesRequireLibraries)) {
foreach ($gadgetSpec->templatesRequireLibraries as $libraryUrl) {
$uris[] = RemoteContentRequest::transformRelativeUrl($locale['messages'], $context->getUrl());
}
}
$uris[] = $request->getUrl();
self::invalidateRemoteContents($uris);
}
}
public function invalidateApplicationResources(array $uris, SecurityToken $token)
{
foreach ($uris as $uri) {
$request = new RemoteContentRequest($uri);
$this->cache->invalidate($request->toHash());
// GET
$request = new RemoteContentRequest($uri);
$request->createRemoteContentRequestWithUri($uri);
$this->cache->invalidate($request->toHash());
// GET & SIGNED
$request = new RemoteContentRequest($uri);
$request->setAuthType(RemoteContentRequest::$AUTH_SIGNED);
$request->setNotSignedUri($uri);
$this->cache->invalidate($request->toHash());
}
}
public function invalidateApplicationResources(array $uris, SecurityToken $token)
{
foreach ($uris as $uri) {
$request = new RemoteContentRequest($uri);
$this->cache->invalidate($request->toHash());
// GET
$request = new RemoteContentRequest($uri);
$request->createRemoteContentRequestWithUri($uri);
$this->cache->invalidate($request->toHash());
// GET & SIGNED
$request = new RemoteContentRequest($uri);
$request->setAuthType(RemoteContentRequest::$AUTH_SIGNED);
$request->setNotSignedUri($uri);
$this->cache->invalidate($request->toHash());
}
if (Doctrine::getTable('SnsConfig')->get('is_use_outer_shindig', false) && Doctrine::getTable('SnsConfig')->get('is_relay_invalidation_notice', true)) {
require_once 'OAuth.php';
$shindigUrl = Doctrine::getTable('SnsConfig')->get('shindig_url');
if (substr($shindigUrl, -1) !== '/') {
$shindigUrl .= '/';
}
$invalidateUrl = $shindigUrl . 'gadgets/api/rest/cache';
$key = Doctrine::getTable('SnsConfig')->get('shindig_backend_key');
$secret = Doctrine::getTable('SnsConfig')->get('shindig_backend_secret');
$consumer = new OAuthConsumer($key, $secret);
$oauthRequest = OAuthRequest::from_consumer_and_token($consumer, null, 'POST', $invalidateUrl);
$oauthRequest->set_parameter('xoauth_requestor_id', 1);
$oauthRequest->sign_request(new OAuthSignatureMethod_HMAC_SHA1(), $consumer, null);
$request = new RemoteContentRequest($invalidateUrl . '?xoauth_requestor_id=1');
$request->setMethod('POST');
$request->setContentType('application/json');
$request->setPostBody(json_encode(array('invalidationKeys' => $uris)));
$request->setHeaders($oauthRequest->to_header());
$request->getOptions()->ignoreCache = true;
$remoteContent = Shindig_Config::get('remote_content');
$fetcher = new $remoteContent();
$fetcher->fetch($request);
}
}
/**
* Returns the cached request, or false if there's no cached copy of this request, ignoreCache = true or if it's invalidated
*
* @param RemoteContentRequest $request
* @return unknown
*/
public function getCachedRequest(RemoteContentRequest $request)
{
$ignoreCache = $request->getOptions()->ignoreCache;
if (!$ignoreCache && ($this->cachePostRequest || !$request->isPost()) && ($cachedRequest = $this->cache->get($request->toHash())) !== false && $this->invalidateService->isValid($cachedRequest)) {
return $cachedRequest;
} else {
return false;
}
}
