| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/safe_search_api/safe_search_url_checker.h" |
| |
| #include <stddef.h> |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "base/callback.h" |
| #include "base/json/json_writer.h" |
| #include "base/macros.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/values.h" |
| #include "net/base/net_errors.h" |
| #include "net/traffic_annotation/network_traffic_annotation_test_helper.h" |
| #include "services/network/public/cpp/shared_url_loader_factory.h" |
| #include "services/network/public/cpp/weak_wrapper_shared_url_loader_factory.h" |
| #include "services/network/test/test_url_loader_factory.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "url/gurl.h" |
| |
| using Classification = SafeSearchURLChecker::Classification; |
| using testing::_; |
| |
| namespace { |
| |
| const size_t kCacheSize = 2; |
| |
| const char* kURLs[] = { |
| "http://www.randomsite1.com", |
| "http://www.randomsite2.com", |
| "http://www.randomsite3.com", |
| "http://www.randomsite4.com", |
| "http://www.randomsite5.com", |
| "http://www.randomsite6.com", |
| "http://www.randomsite7.com", |
| "http://www.randomsite8.com", |
| "http://www.randomsite9.com", |
| }; |
| |
| const char kSafeSearchApiUrl[] = |
| "https://safesearch.googleapis.com/v1:classify"; |
| |
| std::string BuildResponse(bool is_porn) { |
| base::DictionaryValue dict; |
| std::unique_ptr<base::DictionaryValue> classification_dict( |
| new base::DictionaryValue); |
| if (is_porn) |
| classification_dict->SetBoolean("pornography", is_porn); |
| auto classifications_list = std::make_unique<base::ListValue>(); |
| classifications_list->Append(std::move(classification_dict)); |
| dict.SetWithoutPathExpansion("classifications", |
| std::move(classifications_list)); |
| std::string result; |
| base::JSONWriter::Write(dict, &result); |
| return result; |
| } |
| |
| } // namespace |
| |
| class SafeSearchURLCheckerTest : public testing::Test { |
| public: |
| SafeSearchURLCheckerTest() |
| : next_url_(0), |
| test_shared_loader_factory_( |
| base::MakeRefCounted<network::WeakWrapperSharedURLLoaderFactory>( |
| &test_url_loader_factory_)), |
| checker_(test_shared_loader_factory_, |
| TRAFFIC_ANNOTATION_FOR_TESTS, |
| kCacheSize) {} |
| |
| MOCK_METHOD3(OnCheckDone, |
| void(const GURL& url, |
| Classification classification, |
| bool uncertain)); |
| |
| protected: |
| GURL GetNewURL() { |
| CHECK(next_url_ < arraysize(kURLs)); |
| return GURL(kURLs[next_url_++]); |
| } |
| |
| void SetupResponse(const GURL& url, |
| net::Error error, |
| const std::string& response) { |
| network::URLLoaderCompletionStatus status(error); |
| status.decoded_body_length = response.size(); |
| test_url_loader_factory_.AddResponse(GURL(kSafeSearchApiUrl), |
| network::ResourceResponseHead(), |
| response, status); |
| } |
| |
| // Returns true if the result was returned synchronously (cache hit). |
| bool CheckURL(const GURL& url) { |
| bool cached = checker_.CheckURL( |
| url, base::BindOnce(&SafeSearchURLCheckerTest::OnCheckDone, |
| base::Unretained(this))); |
| return cached; |
| } |
| |
| void WaitForResponse() { base::RunLoop().RunUntilIdle(); } |
| |
| bool SendValidResponse(const GURL& url, bool is_porn) { |
| SetupResponse(url, net::OK, BuildResponse(is_porn)); |
| bool result = CheckURL(url); |
| WaitForResponse(); |
| return result; |
| } |
| |
| bool SendFailedResponse(const GURL& url) { |
| SetupResponse(url, net::ERR_ABORTED, std::string()); |
| bool result = CheckURL(url); |
| WaitForResponse(); |
| return result; |
| } |
| |
| size_t next_url_; |
| base::MessageLoop message_loop_; |
| network::TestURLLoaderFactory test_url_loader_factory_; |
| scoped_refptr<network::SharedURLLoaderFactory> test_shared_loader_factory_; |
| SafeSearchURLChecker checker_; |
| }; |
| |
| TEST_F(SafeSearchURLCheckerTest, Simple) { |
| { |
| GURL url(GetNewURL()); |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url, false)); |
| } |
| { |
| GURL url(GetNewURL()); |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::UNSAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url, true)); |
| } |
| { |
| GURL url(GetNewURL()); |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::SAFE, true)); |
| ASSERT_FALSE(SendFailedResponse(url)); |
| } |
| } |
| |
| TEST_F(SafeSearchURLCheckerTest, Cache) { |
| // One more URL than fit in the cache. |
| ASSERT_EQ(2u, kCacheSize); |
| GURL url1(GetNewURL()); |
| GURL url2(GetNewURL()); |
| GURL url3(GetNewURL()); |
| |
| // Populate the cache. |
| EXPECT_CALL(*this, OnCheckDone(url1, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url1, false)); |
| EXPECT_CALL(*this, OnCheckDone(url2, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url2, false)); |
| |
| // Now we should get results synchronously, without a network request. |
| test_url_loader_factory_.ClearResponses(); |
| EXPECT_CALL(*this, OnCheckDone(url2, Classification::SAFE, false)); |
| ASSERT_TRUE(CheckURL(url2)); |
| EXPECT_CALL(*this, OnCheckDone(url1, Classification::SAFE, false)); |
| ASSERT_TRUE(CheckURL(url1)); |
| |
| // Now |url2| is the LRU and should be evicted on the next check. |
| EXPECT_CALL(*this, OnCheckDone(url3, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url3, false)); |
| |
| EXPECT_CALL(*this, OnCheckDone(url2, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url2, false)); |
| } |
| |
| TEST_F(SafeSearchURLCheckerTest, CoalesceRequestsToSameURL) { |
| GURL url(GetNewURL()); |
| // Start two checks for the same URL. |
| SetupResponse(url, net::OK, BuildResponse(false)); |
| ASSERT_FALSE(CheckURL(url)); |
| ASSERT_FALSE(CheckURL(url)); |
| // A single response should answer both of those checks |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::SAFE, false)).Times(2); |
| WaitForResponse(); |
| } |
| |
| TEST_F(SafeSearchURLCheckerTest, CacheTimeout) { |
| GURL url(GetNewURL()); |
| |
| checker_.SetCacheTimeoutForTesting(base::TimeDelta::FromSeconds(0)); |
| |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::SAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url, false)); |
| |
| // Since the cache timeout is zero, the cache entry should be invalidated |
| // immediately. |
| EXPECT_CALL(*this, OnCheckDone(url, Classification::UNSAFE, false)); |
| ASSERT_FALSE(SendValidResponse(url, true)); |
| } |