public function testIsResponseCacheable()
{
$resp = new Google_HttpRequest('http://localhost', 'POST');
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// The response has expired, and we don't have an etag for
// revalidation.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 1998 14:19:41 GMT', 'Date' => 'Mon, 29 Jun 1998 02:28:12 GMT', 'Last-Modified' => 'Mon, 29 Jun 1998 02:28:12 GMT'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify cacheable responses.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 2013 14:19:41 GMT', 'Date' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'Last-Modified' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertTrue($result);
// Verify that responses to HEAD requests are cacheable.
$resp = new Google_HttpRequest('http://localhost', 'HEAD');
$resp->setResponseHttpCode('200');
$resp->setResponseBody(null);
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 2013 14:19:41 GMT', 'Date' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'Last-Modified' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertTrue($result);
// Verify that Vary: * cannot get cached.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 2013 14:19:41 GMT', 'Date' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'Last-Modified' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'Vary' => 'foo', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify 201s cannot get cached.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setResponseHttpCode('201');
$resp->setResponseBody(null);
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 2013 14:19:41 GMT', 'Last-Modified' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify pragma: no-cache.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Expires' => 'Wed, 11 Jan 2012 04:03:37 GMT', 'Date' => 'Wed, 11 Jan 2012 04:03:37 GMT', 'Pragma' => 'no-cache', 'Cache-Control' => 'private, max-age=0, must-revalidate, no-transform', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify Cache-Control: no-store.
$resp = new Google_HttpRequest('GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Expires' => 'Wed, 11 Jan 2012 04:03:37 GMT', 'Date' => 'Wed, 11 Jan 2012 04:03:37 GMT', 'Cache-Control' => 'no-store', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify that authorized responses are not cacheable.
$resp = new Google_HttpRequest('http://localhost', 'GET');
$resp->setRequestHeaders(array('Authorization' => 'Bearer Token'));
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(array('Cache-Control' => 'max-age=3600, must-revalidate', 'Expires' => 'Fri, 30 Oct 2013 14:19:41 GMT', 'Last-Modified' => 'Mon, 29 Jun 2011 02:28:12 GMT', 'ETag' => '3e86-410-3596fbbc'));
$result = Google_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
}
/**
* @visible for testing.
* Cache the response to an HTTP request if it is cacheable.
* @param Google_HttpRequest $request
* @return bool Returns true if the insertion was successful.
* Otherwise, return false.
*/
protected function setCachedRequest(Google_HttpRequest $request)
{
// Determine if the request is cacheable.
if (Google_CacheParser::isResponseCacheable($request)) {
Google_Client::$cache->set($request->getCacheKey(), $request);
return true;
}
return false;
}
