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proxy_interface_test.cc
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proxy_interface_test.cc
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/*
* Copyright 2011 Google Inc.
*
* Licensed 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.
*/
// Author: morlovich@google.com (Maksim Orlovich)
// Unit-tests for ProxyInterface.
#include "net/instaweb/automatic/public/proxy_interface.h"
#include "net/instaweb/automatic/public/proxy_fetch.h"
#include "net/instaweb/automatic/public/proxy_interface_test_base.h"
#include "net/instaweb/htmlparse/public/html_parse_test_base.h"
#include "net/instaweb/http/public/async_fetch.h"
#include "net/instaweb/http/public/content_type.h"
#include "net/instaweb/http/public/http_cache.h"
#include "net/instaweb/http/public/logging_proto_impl.h"
#include "net/instaweb/http/public/meta_data.h"
#include "net/instaweb/http/public/mock_callback.h"
#include "net/instaweb/http/public/mock_url_fetcher.h"
#include "net/instaweb/http/public/reflecting_test_fetcher.h"
#include "net/instaweb/http/public/request_context.h"
#include "net/instaweb/http/public/request_headers.h"
#include "net/instaweb/http/public/response_headers.h"
#include "net/instaweb/http/public/semantic_type.h"
#include "net/instaweb/http/public/user_agent_matcher.h"
#include "net/instaweb/rewriter/public/blink_util.h"
#include "net/instaweb/rewriter/public/domain_lawyer.h"
#include "net/instaweb/rewriter/public/experiment_util.h"
#include "net/instaweb/rewriter/public/rewrite_driver.h"
#include "net/instaweb/rewriter/public/rewrite_options.h"
#include "net/instaweb/rewriter/public/rewrite_test_base.h"
#include "net/instaweb/rewriter/public/server_context.h"
#include "net/instaweb/rewriter/public/test_rewrite_driver_factory.h"
#include "net/instaweb/util/public/abstract_mutex.h"
#include "net/instaweb/util/public/basictypes.h"
#include "net/instaweb/util/public/fallback_property_page.h"
#include "net/instaweb/util/public/function.h"
#include "net/instaweb/util/public/google_url.h"
#include "net/instaweb/util/public/gtest.h"
#include "net/instaweb/util/public/lru_cache.h"
#include "net/instaweb/util/public/mock_property_page.h"
#include "net/instaweb/util/public/mock_scheduler.h"
#include "net/instaweb/util/public/mock_timer.h"
#include "net/instaweb/util/public/null_message_handler.h"
#include "net/instaweb/util/public/property_cache.h"
#include "net/instaweb/util/public/queued_worker_pool.h"
#include "net/instaweb/util/public/scoped_ptr.h"
#include "net/instaweb/util/public/statistics.h"
#include "net/instaweb/util/public/string.h"
#include "net/instaweb/util/public/string_util.h"
#include "net/instaweb/util/public/thread_synchronizer.h"
#include "net/instaweb/util/public/thread_system.h"
#include "net/instaweb/util/public/time_util.h"
#include "net/instaweb/util/public/timer.h"
#include "net/instaweb/util/worker_test_base.h"
#include "pagespeed/kernel/base/mock_message_handler.h"
#include "pagespeed/kernel/http/http_options.h"
namespace net_instaweb {
namespace {
// This jpeg file lacks a .jpg or .jpeg extension. So we initiate
// a property-cache read prior to getting the response-headers back,
// but will never go into the ProxyFetch flow that blocks waiting
// for the cache lookup to come back.
const char kImageFilenameLackingExt[] = "jpg_file_lacks_ext";
const char kHttpsPageUrl[] = "https://www.test.com/page.html";
const char kHttpsCssUrl[] = "https://www.test.com/style.css";
const char kCssContent[] = "* { display: none; }";
const char kMinimizedCssContent[] = "*{display:none}";
} // namespace
class ProxyInterfaceTest : public ProxyInterfaceTestBase {
protected:
static const int kHtmlCacheTimeSec = 5000;
ProxyInterfaceTest()
: start_time_ms_(0),
max_age_300_("max-age=300") {
ConvertTimeToString(MockTimer::kApr_5_2010_ms, &start_time_string_);
ConvertTimeToString(MockTimer::kApr_5_2010_ms + 5 * Timer::kMinuteMs,
&start_time_plus_300s_string_);
ConvertTimeToString(MockTimer::kApr_5_2010_ms - 2 * Timer::kDayMs,
&old_time_string_);
}
virtual ~ProxyInterfaceTest() {}
virtual void SetUp() {
ThreadSynchronizer* sync = server_context()->thread_synchronizer();
sync->EnableForPrefix(ProxyFetch::kCollectorDoneFinish);
sync->EnableForPrefix(ProxyFetch::kCollectorDetachFinish);
sync->EnableForPrefix(ProxyFetch::kCollectorConnectProxyFetchFinish);
server_context_->set_enable_property_cache(true);
const PropertyCache::Cohort* dom_cohort =
SetupCohort(server_context_->page_property_cache(),
RewriteDriver::kDomCohort);
const PropertyCache::Cohort* blink_cohort =
SetupCohort(server_context_->page_property_cache(),
BlinkUtil::kBlinkCohort);
server_context()->set_dom_cohort(dom_cohort);
server_context()->set_blink_cohort(blink_cohort);
RewriteOptions* options = server_context()->global_options();
options->ClearSignatureForTesting();
options->EnableFilter(RewriteOptions::kRewriteCss);
options->set_max_html_cache_time_ms(kHtmlCacheTimeSec * Timer::kSecondMs);
options->set_in_place_rewriting_enabled(true);
options->Disallow("*blacklist*");
server_context()->ComputeSignature(options);
ProxyInterfaceTestBase::SetUp();
// The original url_async_fetcher() is still owned by RewriteDriverFactory.
background_fetch_fetcher_.reset(new BackgroundFetchCheckingUrlAsyncFetcher(
factory()->ComputeUrlAsyncFetcher()));
server_context()->set_default_system_fetcher(
background_fetch_fetcher_.get());
start_time_ms_ = timer()->NowMs();
SetResponseWithDefaultHeaders(kImageFilenameLackingExt, kContentTypeJpeg,
"image data", 300);
SetResponseWithDefaultHeaders(kPageUrl, kContentTypeHtml,
"<div><p></p></div>", 0);
}
void CheckHeaders(const ResponseHeaders& headers,
const ContentType& expect_type) {
ASSERT_TRUE(headers.has_status_code());
EXPECT_EQ(HttpStatus::kOK, headers.status_code());
EXPECT_STREQ(expect_type.mime_type(),
headers.Lookup1(HttpAttributes::kContentType));
}
void CheckBackgroundFetch(const ResponseHeaders& headers,
bool is_background_fetch) {
EXPECT_STREQ(is_background_fetch ? "1" : "0",
headers.Lookup1(kBackgroundFetchHeader));
}
void CheckNumBackgroundFetches(int num) {
EXPECT_EQ(num, background_fetch_fetcher_->num_background_fetches());
}
virtual void ClearStats() {
RewriteTestBase::ClearStats();
background_fetch_fetcher_->clear_num_background_fetches();
}
// Serve a trivial HTML page with initial Cache-Control header set to
// input_cache_control and return the Cache-Control header after running
// through ProxyInterface.
//
// A unique id must be set to assure different websites are requested.
// id is put in a URL, so it probably shouldn't have spaces and other
// special chars.
GoogleString RewriteHtmlCacheHeader(const StringPiece& id,
const StringPiece& input_cache_control) {
GoogleString url = StrCat("http://www.example.com/", id, ".html");
ResponseHeaders input_headers;
DefaultResponseHeaders(kContentTypeHtml, 100, &input_headers);
input_headers.Replace(HttpAttributes::kCacheControl, input_cache_control);
SetFetchResponse(url, input_headers, "<body>Foo</body>");
GoogleString body;
ResponseHeaders output_headers;
FetchFromProxy(url, true, &body, &output_headers);
ConstStringStarVector values;
output_headers.Lookup(HttpAttributes::kCacheControl, &values);
return JoinStringStar(values, ", ");
}
int GetStatusCodeInPropertyCache(const GoogleString& url) {
PropertyCache* pcache = page_property_cache();
scoped_ptr<MockPropertyPage> page(
NewMockPage(url, "", UserAgentMatcher::kDesktop));
const PropertyCache::Cohort* cohort = pcache->GetCohort(
RewriteDriver::kDomCohort);
PropertyValue* value;
pcache->Read(page.get());
value = page->GetProperty(
cohort, RewriteDriver::kStatusCodePropertyName);
int status_code;
EXPECT_TRUE(StringToInt(value->value(), &status_code));
return status_code;
}
void DisableAjax() {
RewriteOptions* options = server_context()->global_options();
options->ClearSignatureForTesting();
options->set_in_place_rewriting_enabled(false);
server_context()->ComputeSignature(options);
}
void RejectBlacklisted() {
RewriteOptions* options = server_context()->global_options();
options->ClearSignatureForTesting();
options->set_reject_blacklisted(true);
options->set_reject_blacklisted_status_code(HttpStatus::kImATeapot);
server_context()->ComputeSignature(options);
}
// This function is primarily meant to enable writes to the dom cohort of the
// property cache. Writes to this cohort are predicated on a filter that uses
// that cohort being enabled, which includes the insert dns prefetch filter.
void EnableDomCohortWritesWithDnsPrefetch() {
RewriteOptions* options = server_context()->global_options();
options->ClearSignatureForTesting();
options->EnableFilter(RewriteOptions::kInsertDnsPrefetch);
server_context()->ComputeSignature(options);
}
void TestFallbackPageProperties(
const GoogleString& url, const GoogleString& fallback_url) {
GoogleUrl gurl(url);
GoogleString kPropertyName("prop");
GoogleString kValue("value");
options()->set_use_fallback_property_cache_values(true);
// No fallback value is present.
const PropertyCache::Cohort* cohort =
page_property_cache()->GetCohort(RewriteDriver::kDomCohort);
StringAsyncFetch callback(
RequestContext::NewTestRequestContext(
server_context()->thread_system()));
RequestHeaders request_headers;
callback.set_request_headers(&request_headers);
scoped_ptr<ProxyFetchPropertyCallbackCollector> callback_collector(
proxy_interface_->InitiatePropertyCacheLookup(
false, gurl, options(), &callback, false, NULL));
FallbackPropertyPage* fallback_page =
callback_collector->fallback_property_page();
fallback_page->UpdateValue(cohort, kPropertyName, kValue);
fallback_page->WriteCohort(cohort);
// Read from fallback value.
GoogleUrl new_gurl(fallback_url);
callback_collector.reset(proxy_interface_->InitiatePropertyCacheLookup(
false, new_gurl, options(), &callback, false, NULL));
fallback_page = callback_collector->fallback_property_page();
EXPECT_FALSE(fallback_page->actual_property_page()->GetProperty(
cohort, kPropertyName)->has_value());
EXPECT_EQ(kValue,
fallback_page->GetProperty(cohort, kPropertyName)->value());
// If use_fallback_property_cache_values option is set to false, fallback
// values will not be used.
options()->ClearSignatureForTesting();
options()->set_use_fallback_property_cache_values(false);
callback_collector.reset(proxy_interface_->InitiatePropertyCacheLookup(
false, new_gurl, options(), &callback, false, NULL));
EXPECT_FALSE(callback_collector->fallback_property_page()->GetProperty(
cohort, kPropertyName)->has_value());
}
void TestQueryParameters(StringPiece original_domain,
StringPiece redirect_domain,
bool add_params_to_redirect,
bool add_params_to_location) {
// Test to check if we re-add our query params when we get a redirect.
const char kParams[] = "PageSpeedCssInlineMaxBytes=99";
GoogleString original_url = StrCat(original_domain, "a/?x=y");
GoogleString redirect_url = StrCat(redirect_domain, "b/",
add_params_to_redirect ? "?x=y" : "");
GoogleString set_text, get_text;
RequestHeaders request_headers;
ResponseHeaders set_headers, get_headers;
NullMessageHandler handler;
GoogleString expected_location(redirect_url);
if (add_params_to_location) {
StrAppend(&expected_location,
add_params_to_redirect ? "&" : "?", kParams);
}
set_headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
set_headers.Add(HttpAttributes::kLocation, redirect_url);
set_headers.SetStatusAndReason(HttpStatus::kFound);
set_text = "<html></html>";
mock_url_fetcher_.SetResponse(original_url, set_headers, set_text);
FetchFromProxy(StrCat(original_url, "&", kParams), request_headers, true,
&get_text, &get_headers);
EXPECT_STREQ(StrCat("HTTP/1.0 302 Found\r\n"
"Content-Type: text/html\r\n"
"Location: ", expected_location, "\r\n"
"X-Background-Fetch: 0\r\n"
"Date: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Expires: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Cache-Control: max-age=0, private\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n"),
get_headers.ToString());
}
scoped_ptr<BackgroundFetchCheckingUrlAsyncFetcher> background_fetch_fetcher_;
int64 start_time_ms_;
GoogleString start_time_string_;
GoogleString start_time_plus_300s_string_;
GoogleString old_time_string_;
const GoogleString max_age_300_;
private:
DISALLOW_COPY_AND_ASSIGN(ProxyInterfaceTest);
};
TEST_F(ProxyInterfaceTest, LoggingInfo) {
GoogleString url = "http://www.example.com/";
GoogleString text;
RequestHeaders request_headers;
ResponseHeaders headers;
headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
headers.SetStatusAndReason(HttpStatus::kOK);
// Fetch HTML content.
mock_url_fetcher_.SetResponse(url, headers, "<html></html>");
FetchFromProxy(url, request_headers, true, &text, &headers);
CheckBackgroundFetch(headers, false);
CheckNumBackgroundFetches(0);
const RequestContext::TimingInfo& rti = timing_info();
int64 latency_ms;
ASSERT_TRUE(rti.GetHTTPCacheLatencyMs(&latency_ms));
EXPECT_EQ(0, latency_ms);
EXPECT_FALSE(rti.GetL2HTTPCacheLatencyMs(&latency_ms));
EXPECT_FALSE(rti.GetFetchHeaderLatencyMs(&latency_ms));
EXPECT_FALSE(rti.GetFetchLatencyMs(&latency_ms));
EXPECT_TRUE(logging_info()->is_html_response());
EXPECT_FALSE(logging_info()->is_url_disallowed());
EXPECT_FALSE(logging_info()->is_request_disabled());
EXPECT_FALSE(logging_info()->is_pagespeed_resource());
// Fetch non-HTML content.
logging_info()->Clear();
mock_url_fetcher_.SetResponse(url, headers, "js");
FetchFromProxy(url, request_headers, true, &text, &headers);
EXPECT_FALSE(logging_info()->is_html_response());
EXPECT_FALSE(logging_info()->is_url_disallowed());
EXPECT_FALSE(logging_info()->is_request_disabled());
// Fetch blacklisted url.
url = "http://www.blacklist.com/";
logging_info()->Clear();
mock_url_fetcher_.SetResponse(url, headers, "<html></html>");
FetchFromProxy(url,
request_headers,
true, /* expect_success */
&text,
&headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_TRUE(logging_info()->is_html_response());
EXPECT_TRUE(logging_info()->is_url_disallowed());
EXPECT_FALSE(logging_info()->is_request_disabled());
// Fetch disabled url.
url = "http://www.example.com/?PageSpeed=off";
logging_info()->Clear();
mock_url_fetcher_.SetResponse("http://www.example.com/", headers,
"<html></html>");
FetchFromProxy(url,
request_headers,
true, /* expect_success */
&text,
&headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_TRUE(logging_info()->is_html_response());
EXPECT_FALSE(logging_info()->is_url_disallowed());
EXPECT_TRUE(logging_info()->is_request_disabled());
}
TEST_F(ProxyInterfaceTest, SkipPropertyCacheLookupIfOptionsNotEnabled) {
GoogleString url = "http://www.example.com/";
GoogleString text;
RequestHeaders request_headers;
ResponseHeaders headers;
headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
headers.SetStatusAndReason(HttpStatus::kOK);
// Fetch disabled url.
url = "http://www.example.com/?PageSpeed=off";
logging_info()->Clear();
mock_url_fetcher_.SetResponse("http://www.example.com/", headers,
"<html></html>");
FetchFromProxy(url,
request_headers,
true, /* expect_success */
&text,
&headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_TRUE(logging_info()->is_html_response());
EXPECT_FALSE(logging_info()->is_url_disallowed());
EXPECT_TRUE(logging_info()->is_request_disabled());
// Only the HTTP response lookup is issued and it is not in the cache.
EXPECT_EQ(0, lru_cache()->num_hits());
EXPECT_EQ(1, lru_cache()->num_misses());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
}
TEST_F(ProxyInterfaceTest, SkipPropertyCacheLookupIfUrlBlacklisted) {
GoogleString url = "http://www.blacklist.com/";
RequestHeaders request_headers;
GoogleString text;
ResponseHeaders headers;
headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
headers.SetStatusAndReason(HttpStatus::kOK);
scoped_ptr<RewriteOptions> custom_options(
server_context()->global_options()->Clone());
custom_options->AddRejectedUrlWildcard(AbsolutifyUrl("blacklist*"));
SetRewriteOptions(custom_options.get());
logging_info()->Clear();
mock_url_fetcher_.SetResponse(url, headers, "<html></html>");
FetchFromProxy(url, request_headers, true, &text, &headers, false);
EXPECT_TRUE(logging_info()->is_html_response());
EXPECT_TRUE(logging_info()->is_url_disallowed());
EXPECT_FALSE(logging_info()->is_request_disabled());
// Only the HTTP response lookup is issued and it is not in the cache.
EXPECT_EQ(0, lru_cache()->num_hits());
EXPECT_EQ(1, lru_cache()->num_misses());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
}
TEST_F(ProxyInterfaceTest, HeadRequest) {
// Test to check if we are handling Head requests correctly.
GoogleString url = "http://www.example.com/";
GoogleString set_text, get_text;
RequestHeaders request_headers;
ResponseHeaders set_headers, get_headers;
set_headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
set_headers.SetStatusAndReason(HttpStatus::kOK);
set_text = "<html><head/></html>";
mock_url_fetcher_.SetResponse(url, set_headers, set_text);
FetchFromProxy(url, request_headers, true, &get_text, &get_headers);
// Headers and body are correct for a Get request.
EXPECT_EQ("HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"X-Background-Fetch: 0\r\n"
"Date: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Expires: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Cache-Control: max-age=0, private\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n", get_headers.ToString());
EXPECT_EQ(set_text, get_text);
// Remove from the cache so we can actually test a HEAD fetch.
http_cache()->Delete(url, rewrite_driver_->CacheFragment());
ClearStats();
// Headers and body are correct for a Head request.
request_headers.set_method(RequestHeaders::kHead);
FetchFromProxy(url,
request_headers,
true, /* expect_success */
&get_text,
&get_headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_EQ(0, http_cache()->cache_hits()->Get());
EXPECT_EQ("HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"X-Background-Fetch: 0\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n", get_headers.ToString());
EXPECT_TRUE(get_text.empty());
}
TEST_F(ProxyInterfaceTest, RedirectRequestWhenDomainRewriterEnabled) {
// A MapRewriteDomain should not change the Location of a redirect.
// Test to check if we are handling Head requests correctly.
GoogleString url = "http://www.example.com/";
GoogleString set_text, get_text;
RequestHeaders request_headers;
ResponseHeaders set_headers, get_headers;
NullMessageHandler handler;
set_headers.Add(HttpAttributes::kContentType, kContentTypeHtml.mime_type());
set_headers.Add(HttpAttributes::kLocation, "http://m.example.com");
set_headers.SetStatusAndReason(HttpStatus::kFound);
scoped_ptr<RewriteOptions> custom_options(
server_context()->global_options()->Clone());
custom_options->EnableFilter(RewriteOptions::kRewriteDomains);
custom_options->WriteableDomainLawyer()->AddTwoProtocolRewriteDomainMapping(
"www.example.com", "m.example.com", &handler);
SetRewriteOptions(custom_options.get());
set_text = "<html></html>";
mock_url_fetcher_.SetResponse(url, set_headers, set_text);
FetchFromProxy(url, request_headers, true, &get_text, &get_headers);
// Headers and body are correct for a Get request.
EXPECT_STREQ("HTTP/1.0 302 Found\r\n"
"Content-Type: text/html\r\n"
"Location: http://m.example.com\r\n"
"X-Background-Fetch: 0\r\n"
"Date: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Expires: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Cache-Control: max-age=0, private\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n",
get_headers.ToString());
}
TEST_F(ProxyInterfaceTest, RedirectRequestRetainsQueryParams) {
// "Location: http://www.example.com/b/?x=y&PageSpeedCssInlineMaxBytes=99" is
// what we expect to see - note the PageSpeed query parameter IS copied over.
TestQueryParameters(/* original_domain= */ "http://www.example.com/",
/* redirect_domain= */ "http://www.example.com/",
/* add_params_to_redirect= */ true,
/* add_params_to_location= */ true);
}
TEST_F(ProxyInterfaceTest, RedirectRequestRetainsOnlyPagespeedQueryParams) {
// "Location: http://www.example.com/b/?PageSpeedCssInlineMaxBytes=99" is
// what we expect to see - note the PageSpeed query parameter IS copied over.
TestQueryParameters(/* original_domain= */ "http://www.example.com/",
/* redirect_domain= */ "http://www.example.com/",
/* add_params_to_redirect= */ false,
/* add_params_to_location= */ true);
}
TEST_F(ProxyInterfaceTest, RedirectToDiffDomainDiscardsQueryParams) {
// "Location: http://test.com/?x=y" is what we expect to see - note the
// PageSpeed query parameter is NOT copied over.
TestQueryParameters(/* original_domain= */ "http://www.example.com/",
/* redirect_domain= */ kTestDomain,
/* add_params_to_redirect= */ true,
/* add_params_to_location= */ false);
}
TEST_F(ProxyInterfaceTest, RedirectToDiffDomainDiscardsPagespeedQueryParams) {
// "Location: http://test.com/" is what we expect to see - note the
// PageSpeed query parameter is NOT copied over.
TestQueryParameters(/* original_domain= */ "http://www.example.com/",
/* redirect_domain= */ kTestDomain,
/* add_params_to_redirect= */ false,
/* add_params_to_location= */ false);
}
TEST_F(ProxyInterfaceTest, HeadResourceRequest) {
// Test to check if we are handling Head requests correctly in pagespeed
// resource flow.
const char kCssWithEmbeddedImage[] = "*{background-image:url(%s)}";
const char kBackgroundImage[] = "1.png";
GoogleString text;
RequestHeaders request_headers;
ResponseHeaders response_headers;
GoogleString expected_response_headers_string = "HTTP/1.1 200 OK\r\n"
"Content-Type: text/css\r\n"
"X-Background-Fetch: 0\r\n"
"Date: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Expires: Tue, 02 Feb 2010 18:56:26 GMT\r\n"
"Cache-Control: max-age=300,private\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n";
// We're not going to image-compress so we don't need our mock image
// to really be an image.
SetResponseWithDefaultHeaders(kBackgroundImage, kContentTypePng, "image",
kHtmlCacheTimeSec * 2);
GoogleString orig_css = StringPrintf(kCssWithEmbeddedImage, kBackgroundImage);
SetResponseWithDefaultHeaders("embedded.css", kContentTypeCss,
orig_css, kHtmlCacheTimeSec * 2);
// By default, cache extension is off in the default options.
server_context()->global_options()->SetDefaultRewriteLevel(
RewriteOptions::kPassThrough);
// Because cache-extension was turned off, the image in the CSS file
// will not be changed.
FetchFromProxy("I.embedded.css.pagespeed.cf.0.css",
request_headers,
true, /* expect_success */
&text,
&response_headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_TRUE(logging_info()->is_pagespeed_resource());
EXPECT_EQ(expected_response_headers_string, response_headers.ToString());
EXPECT_EQ(orig_css, text);
// Headers and body are correct for a Head request.
request_headers.set_method(RequestHeaders::kHead);
FetchFromProxy("I.embedded.css.pagespeed.cf.0.css",
request_headers,
true, /* expect_success */
&text,
&response_headers,
false /* proxy_fetch_property_callback_collector_created */);
// This leads to a conditional refresh of the original resource.
expected_response_headers_string = "HTTP/1.1 200 OK\r\n"
"Content-Type: text/css\r\n"
"X-Background-Fetch: 0\r\n"
"Date: Tue, 02 Feb 2010 18:51:26 GMT\r\n"
"Expires: Tue, 02 Feb 2010 18:56:26 GMT\r\n"
"Cache-Control: max-age=300,private\r\n"
"X-Page-Speed: \r\n"
"HeadersComplete: 1\r\n\r\n";
EXPECT_EQ(expected_response_headers_string, response_headers.ToString());
EXPECT_TRUE(text.empty());
}
TEST_F(ProxyInterfaceTest, FetchFailure) {
GoogleString text;
ResponseHeaders headers;
// We don't want fetcher to fail the test, merely the fetch.
SetFetchFailOnUnexpected(false);
FetchFromProxy("invalid", false, &text, &headers);
CheckBackgroundFetch(headers, false);
CheckNumBackgroundFetches(0);
}
TEST_F(ProxyInterfaceTest, ReturnUnavailableForBlockedUrls) {
GoogleString text;
ResponseHeaders response_headers;
response_headers.SetStatusAndReason(HttpStatus::kOK);
mock_url_fetcher_.SetResponse(AbsolutifyUrl("blocked"), response_headers,
"<html></html>");
FetchFromProxy("blocked", true,
&text, &response_headers);
EXPECT_EQ(HttpStatus::kOK, response_headers.status_code());
text.clear();
response_headers.Clear();
scoped_ptr<RewriteOptions> custom_options(
server_context()->global_options()->Clone());
custom_options->AddRejectedUrlWildcard(AbsolutifyUrl("block*"));
SetRewriteOptions(custom_options.get());
RequestHeaders request_headers;
FetchFromProxy(
"blocked",
request_headers,
false, /* expect_success */
&text,
&response_headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_EQ(HttpStatus::kProxyDeclinedRequest, response_headers.status_code());
}
TEST_F(ProxyInterfaceTest, ReturnUnavailableForBlockedHeaders) {
GoogleString text;
RequestHeaders request_headers;
ResponseHeaders response_headers;
response_headers.SetStatusAndReason(HttpStatus::kOK);
mock_url_fetcher_.SetResponse(kTestDomain, response_headers, "<html></html>");
scoped_ptr<RewriteOptions> custom_options(
server_context()->global_options()->Clone());
custom_options->AddRejectedHeaderWildcard(HttpAttributes::kUserAgent,
"*Chrome*");
custom_options->AddRejectedHeaderWildcard(HttpAttributes::kXForwardedFor,
"10.3.4.*");
SetRewriteOptions(custom_options.get());
request_headers.Add(HttpAttributes::kUserAgent, "Firefox");
request_headers.Add(HttpAttributes::kXForwardedFor, "10.0.0.11");
FetchFromProxy(kTestDomain, request_headers, true,
&text, &response_headers);
EXPECT_EQ(HttpStatus::kOK, response_headers.status_code());
request_headers.Clear();
response_headers.Clear();
request_headers.Add(HttpAttributes::kUserAgent, "abc");
request_headers.Add(HttpAttributes::kUserAgent, "xyz Chrome abc");
FetchFromProxy(kTestDomain,
request_headers,
false, /* expect_success */
&text,
&response_headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_EQ(HttpStatus::kProxyDeclinedRequest, response_headers.status_code());
request_headers.Clear();
response_headers.Clear();
request_headers.Add(HttpAttributes::kXForwardedFor, "10.3.4.32");
FetchFromProxy(kTestDomain,
request_headers,
false, /* expect_success */
&text,
&response_headers,
false /* proxy_fetch_property_callback_collector_created */);
EXPECT_EQ(HttpStatus::kProxyDeclinedRequest, response_headers.status_code());
}
TEST_F(ProxyInterfaceTest, InvalidUrl) {
ExpectStringAsyncFetch fetch(false, rewrite_driver()->request_context());
proxy_interface_->Fetch("localhost:3141", message_handler(), &fetch);
EXPECT_TRUE(fetch.done());
}
TEST_F(ProxyInterfaceTest, PassThrough404) {
GoogleString text;
ResponseHeaders headers;
SetFetchResponse404("404");
FetchFromProxy("404", true, &text, &headers);
ASSERT_TRUE(headers.has_status_code());
EXPECT_EQ(HttpStatus::kNotFound, headers.status_code());
}
TEST_F(ProxyInterfaceTest, PassThroughResource) {
GoogleString text;
ResponseHeaders headers;
const char kContent[] = "A very compelling article";
SetResponseWithDefaultHeaders("text.txt", kContentTypeText, kContent,
kHtmlCacheTimeSec * 2);
FetchFromProxy("text.txt", true, &text, &headers);
CheckHeaders(headers, kContentTypeText);
CheckBackgroundFetch(headers, false);
CheckNumBackgroundFetches(0);
EXPECT_EQ(kContent, text);
}
TEST_F(ProxyInterfaceTest, PassThroughEmptyResource) {
ResponseHeaders headers;
const char kContent[] = "";
SetDefaultLongCacheHeaders(&kContentTypeText, &headers);
SetFetchResponse(AbsolutifyUrl("text.txt"), headers, kContent);
GoogleString text;
ResponseHeaders response_headers;
FetchFromProxy("text.txt", true, &text, &response_headers);
EXPECT_EQ(kContent, text);
// HTTP resource not found the first time.
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
EXPECT_EQ(0, http_cache()->cache_hits()->Get());
// One lookup for ajax metadata and one for the HTTP response. Neither are
// found.
EXPECT_EQ(2, lru_cache()->num_misses());
EXPECT_EQ(0, lru_cache()->num_hits());
ClearStats();
GoogleString text2;
ResponseHeaders response_headers2;
FetchFromProxy("text.txt", true, &text2, &response_headers2);
EXPECT_EQ(kContent, text2);
// Empty resources are not remembered in this flow, so stats are exactly the
// same on second load.
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
EXPECT_EQ(0, http_cache()->cache_hits()->Get());
EXPECT_EQ(2, lru_cache()->num_misses());
EXPECT_EQ(0, lru_cache()->num_hits());
}
TEST_F(ProxyInterfaceTest, SetCookieNotCached) {
ResponseHeaders headers;
const char kContent[] = "A very compelling article";
SetDefaultLongCacheHeaders(&kContentTypeText, &headers);
headers.Add(HttpAttributes::kSetCookie, "cookie");
headers.ComputeCaching();
SetFetchResponse(AbsolutifyUrl("text.txt"), headers, kContent);
// The first response served by the fetcher has Set-Cookie headers.
GoogleString text;
ResponseHeaders response_headers;
FetchFromProxy("text.txt", true, &text, &response_headers);
EXPECT_STREQ("cookie", response_headers.Lookup1(HttpAttributes::kSetCookie));
EXPECT_EQ(kContent, text);
// One lookup for ajax metadata and one for the HTTP response. Neither are
// found.
EXPECT_EQ(2, lru_cache()->num_misses());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
EXPECT_EQ(0, lru_cache()->num_hits());
ClearStats();
// The next response that is served from cache does not have any Set-Cookie
// headers.
GoogleString text2;
ResponseHeaders response_headers2;
FetchFromProxy("text.txt", true, &text2, &response_headers2);
EXPECT_EQ(NULL, response_headers2.Lookup1(HttpAttributes::kSetCookie));
EXPECT_EQ(kContent, text2);
// The HTTP response is found but the ajax metadata is not found.
EXPECT_EQ(1, lru_cache()->num_hits());
EXPECT_EQ(1, http_cache()->cache_hits()->Get());
EXPECT_EQ(1, lru_cache()->num_misses());
EXPECT_EQ(0, http_cache()->cache_misses()->Get());
}
TEST_F(ProxyInterfaceTest, SetCookie2NotCached) {
ResponseHeaders headers;
const char kContent[] = "A very compelling article";
SetDefaultLongCacheHeaders(&kContentTypeText, &headers);
headers.Add(HttpAttributes::kSetCookie2, "cookie");
headers.ComputeCaching();
SetFetchResponse(AbsolutifyUrl("text.txt"), headers, kContent);
// The first response served by the fetcher has Set-Cookie headers.
GoogleString text;
ResponseHeaders response_headers;
FetchFromProxy("text.txt", true, &text, &response_headers);
EXPECT_STREQ("cookie", response_headers.Lookup1(HttpAttributes::kSetCookie2));
EXPECT_EQ(kContent, text);
// One lookup for ajax metadata and one for the HTTP response. Neither are
// found.
EXPECT_EQ(2, lru_cache()->num_misses());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
EXPECT_EQ(0, lru_cache()->num_hits());
ClearStats();
// The next response that is served from cache does not have any Set-Cookie
// headers.
GoogleString text2;
ResponseHeaders response_headers2;
FetchFromProxy("text.txt", true, &text2, &response_headers2);
EXPECT_EQ(NULL, response_headers2.Lookup1(HttpAttributes::kSetCookie2));
EXPECT_EQ(kContent, text2);
// The HTTP response is found but the ajax metadata is not found.
EXPECT_EQ(1, lru_cache()->num_misses());
EXPECT_EQ(0, http_cache()->cache_misses()->Get());
EXPECT_EQ(1, lru_cache()->num_hits());
EXPECT_EQ(1, http_cache()->cache_hits()->Get());
}
TEST_F(ProxyInterfaceTest, NotCachedIfAuthorizedAndNotPublic) {
// We should not cache things which are default cache-control if we
// are sending Authorization:. See RFC 2616, 14.8.
ReflectingTestFetcher reflect;
server_context()->set_default_system_fetcher(&reflect);
RequestHeaders request_headers;
request_headers.Add("Was", "Here");
request_headers.Add(HttpAttributes::kAuthorization, "Secret");
// This will get reflected as well, and hence will determine whether
// cacheable or not.
request_headers.Replace(HttpAttributes::kCacheControl, "max-age=600000");
ResponseHeaders out_headers;
GoogleString out_text;
// Using .txt here so we don't try any AJAX rewriting.
FetchFromProxy("http://test.com/file.txt",
request_headers, true, &out_text, &out_headers);
// We should see the request headers we sent back as the response headers
// as we're using a ReflectingTestFetcher.
EXPECT_STREQ("Here", out_headers.Lookup1("Was"));
// Not cross-domain, so should propagate out header.
EXPECT_TRUE(out_headers.Has(HttpAttributes::kAuthorization));
// Should not have written anything to cache, due to the authorization
// header.
EXPECT_EQ(0, http_cache()->cache_inserts()->Get());
ClearStats();
// Now try again. This time no authorization header, different 'Was'.
request_headers.Replace("Was", "There");
request_headers.RemoveAll(HttpAttributes::kAuthorization);
FetchFromProxy("http://test.com/file.txt",
request_headers, true, &out_text, &out_headers);
// Should get different headers since we should not be cached.
EXPECT_STREQ("There", out_headers.Lookup1("Was"));
EXPECT_FALSE(out_headers.Has(HttpAttributes::kAuthorization));
// And should be a miss per stats.
EXPECT_EQ(0, http_cache()->cache_hits()->Get());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
mock_scheduler()->AwaitQuiescence();
}
TEST_F(ProxyInterfaceTest, CachedIfAuthorizedAndPublic) {
// This with Cache-Control: public should be cached even if
// we are sending Authorization:. See RFC 2616.
ReflectingTestFetcher reflect;
server_context()->set_default_system_fetcher(&reflect);
RequestHeaders request_headers;
request_headers.Add("Was", "Here");
request_headers.Add(HttpAttributes::kAuthorization, "Secret");
// This will get reflected as well, and hence will determine whether
// cacheable or not.
request_headers.Replace(HttpAttributes::kCacheControl, "max-age=600000");
request_headers.Add(HttpAttributes::kCacheControl, "public"); // unlike above
ResponseHeaders out_headers;
GoogleString out_text;
// Using .txt here so we don't try any AJAX rewriting.
FetchFromProxy("http://test.com/file.txt",
request_headers, true, &out_text, &out_headers);
EXPECT_STREQ("Here", out_headers.Lookup1("Was"));
// Not cross-domain, so should propagate out header.
EXPECT_TRUE(out_headers.Has(HttpAttributes::kAuthorization));
// Should have written the result to the cache, despite the request having
// Authorization: thanks to cache-control: public,
EXPECT_EQ(1, http_cache()->cache_inserts()->Get());
ClearStats();
// Now try again. This time no authorization header, different 'Was'.
request_headers.Replace("Was", "There");
request_headers.RemoveAll(HttpAttributes::kAuthorization);
FetchFromProxy("http://test.com/file.txt",
request_headers, true, &out_text, &out_headers);
// Should get old headers, since original was cacheable.
EXPECT_STREQ("Here", out_headers.Lookup1("Was"));
// ... of course hopefully a real server won't serve secrets on a
// cache-control: public page.
EXPECT_STREQ("Secret", out_headers.Lookup1(HttpAttributes::kAuthorization));
// And should be a hit per stats.
EXPECT_EQ(1, http_cache()->cache_hits()->Get());
EXPECT_EQ(0, http_cache()->cache_misses()->Get());
mock_scheduler()->AwaitQuiescence();
}
TEST_F(ProxyInterfaceTest, ImplicitCachingHeadersForCss) {
ResponseHeaders headers;
const char kContent[] = "A very compelling article";
SetTimeMs(MockTimer::kApr_5_2010_ms);
headers.Add(HttpAttributes::kContentType, kContentTypeCss.mime_type());
headers.SetDate(MockTimer::kApr_5_2010_ms);
headers.SetStatusAndReason(HttpStatus::kOK);
headers.ComputeCaching();
SetFetchResponse(AbsolutifyUrl("text.css"), headers, kContent);
// The first response served by the fetcher has caching headers.
GoogleString text;
ResponseHeaders response_headers;
FetchFromProxy("text.css", true, &text, &response_headers);
EXPECT_STREQ(max_age_300_,
response_headers.Lookup1(HttpAttributes::kCacheControl));
EXPECT_STREQ(start_time_plus_300s_string_,
response_headers.Lookup1(HttpAttributes::kExpires));
EXPECT_STREQ(start_time_string_,
response_headers.Lookup1(HttpAttributes::kDate));
EXPECT_EQ(kContent, text);
// One lookup for ajax metadata, one for the HTTP response and one by the css
// filter which looks up metadata while rewriting. None are found.
EXPECT_EQ(3, lru_cache()->num_misses());
EXPECT_EQ(1, http_cache()->cache_misses()->Get());
EXPECT_EQ(0, lru_cache()->num_hits());
ClearStats();
// Fetch again from cache. It has the same caching headers.
text.clear();
response_headers.Clear();
FetchFromProxy("text.css", true, &text, &response_headers);
EXPECT_STREQ(max_age_300_,
response_headers.Lookup1(HttpAttributes::kCacheControl));
EXPECT_STREQ(start_time_plus_300s_string_,
response_headers.Lookup1(HttpAttributes::kExpires));
EXPECT_STREQ(start_time_string_,
response_headers.Lookup1(HttpAttributes::kDate));
EXPECT_EQ(kContent, text);
// One hit for ajax metadata and one for the HTTP response.
EXPECT_EQ(2, lru_cache()->num_hits());
EXPECT_EQ(1, http_cache()->cache_hits()->Get());
EXPECT_EQ(0, lru_cache()->num_misses());
}
TEST_F(ProxyInterfaceTest, MinCacheTtl) {
RewriteOptions* options = server_context()->global_options();
options->ClearSignatureForTesting();
options->set_min_cache_ttl_ms(600 * Timer::kSecondMs);
server_context()->ComputeSignature(options);
ResponseHeaders headers;
const char kContent[] = "A very compelling article";
SetTimeMs(MockTimer::kApr_5_2010_ms);
headers.Add(HttpAttributes::kContentType, kContentTypeCss.mime_type());
headers.SetStatusAndReason(HttpStatus::kOK);
headers.SetDateAndCaching(MockTimer::kApr_5_2010_ms, 300 * Timer::kSecondMs);
SetFetchResponse(AbsolutifyUrl("text.css"), headers, kContent);