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<?php
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
class ApiCacheParserTest extends BaseTest
{
public function testIsResponseCacheable()
{
$client = $this->getClient();
$resp = new Google_Http_Request('http://localhost', 'POST');
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// The response has expired, and we don't have an etag for
// revalidation.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify cacheable responses.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertTrue($result);
// Verify that responses to HEAD requests are cacheable.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertTrue($result);
// Verify that Vary: * cannot get cached.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify 201s cannot get cached.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify pragma: no-cache.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify Cache-Control: no-store.
$resp = new Google_Http_Request('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',
'Cache-Control' => 'no-store',
'ETag' => '3e86-410-3596fbbc',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
// Verify that authorized responses are not cacheable.
$resp = new Google_Http_Request('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',
)
);
$result = Google_Http_CacheParser::isResponseCacheable($resp);
$this->assertFalse($result);
}
public function testIsExpired()
{
$now = time();
$future = $now + (365 * 24 * 60 * 60);
$client = $this->getClient();
// Expires 1 year in the future. Response is fresh.
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Expires' => gmdate('D, d M Y H:i:s', $future) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertFalse(Google_Http_CacheParser::isExpired($resp));
// The response expires soon. Response is fresh.
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Expires' => gmdate('D, d M Y H:i:s', $now + 2) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertFalse(Google_Http_CacheParser::isExpired($resp));
// Expired 1 year ago. Response is stale.
$past = $now - (365 * 24 * 60 * 60);
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Expires' => gmdate('D, d M Y H:i:s', $past) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertTrue(Google_Http_CacheParser::isExpired($resp));
// Invalid expires header. Response is stale.
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Expires' => '-1',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertTrue(Google_Http_CacheParser::isExpired($resp));
// The response expires immediately. G+ APIs do this. Response is stale.
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Expires' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertTrue(Google_Http_CacheParser::isExpired($resp));
}
public function testMustRevalidate()
{
$now = time();
$client = $this->getClient();
// Expires 1 year in the future, and contains the must-revalidate directive.
// Don't revalidate. must-revalidate only applies to expired entries.
$future = $now + (365 * 24 * 60 * 60);
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Cache-Control' => 'max-age=3600, must-revalidate',
'Expires' => gmdate('D, d M Y H:i:s', $future) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $now) . ' GMT',
)
);
$this->assertFalse(Google_Http_CacheParser::mustRevalidate($resp));
// Contains the max-age=3600 directive, but was created 2 hours ago.
// Must revalidate.
$past = $now - (2 * 60 * 60);
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Cache-Control' => 'max-age=3600',
'Expires' => gmdate('D, d M Y H:i:s', $future) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $past) . ' GMT',
)
);
$this->assertTrue(Google_Http_CacheParser::mustRevalidate($resp));
// Contains the max-age=3600 directive, and was created 600 seconds ago.
// No need to revalidate, regardless of the expires header.
$past = $now - (600);
$resp = new Google_Http_Request('http://localhost', 'GET');
$resp->setResponseHttpCode('200');
$resp->setResponseHeaders(
array(
'Cache-Control' => 'max-age=3600',
'Expires' => gmdate('D, d M Y H:i:s', $past) . ' GMT',
'Date' => gmdate('D, d M Y H:i:s', $past) . ' GMT',
)
);
$this->assertFalse(Google_Http_CacheParser::mustRevalidate($resp));
}
}