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// Copyright (c) 2010 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 <map>
#include <string>
#include "base/callback.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/file_util_proxy.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/platform_file.h"
#include "base/scoped_ptr.h"
#include "base/scoped_temp_dir.h"
#include "base/task.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/safe_browsing/client_side_detection_service.h"
#include "chrome/browser/safe_browsing/csd.pb.h"
#include "chrome/common/net/test_url_fetcher_factory.h"
#include "chrome/common/net/url_fetcher.h"
#include "googleurl/src/gurl.h"
#include "net/url_request/url_request_status.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace safe_browsing {
class ClientSideDetectionServiceTest : public testing::Test {
protected:
virtual void SetUp() {
file_thread_.reset(new BrowserThread(BrowserThread::FILE, &msg_loop_));
factory_.reset(new FakeURLFetcherFactory());
URLFetcher::set_factory(factory_.get());
browser_thread_.reset(new BrowserThread(BrowserThread::UI, &msg_loop_));
}
virtual void TearDown() {
msg_loop_.RunAllPending();
csd_service_.reset();
URLFetcher::set_factory(NULL);
file_thread_.reset();
browser_thread_.reset();
}
base::PlatformFile GetModelFile() {
model_file_ = base::kInvalidPlatformFileValue;
csd_service_->GetModelFile(NewCallback(
this, &ClientSideDetectionServiceTest::GetModelFileDone));
// This method will block this thread until GetModelFileDone is called.
msg_loop_.Run();
return model_file_;
}
std::string ReadModelFile(base::PlatformFile model_file) {
char buf[1024];
int n = base::ReadPlatformFile(model_file, 0, buf, 1024);
EXPECT_LE(0, n);
return (n < 0) ? "" : std::string(buf, n);
}
bool SendClientReportPhishingRequest(const GURL& phishing_url,
double score,
SkBitmap thumbnail) {
csd_service_->SendClientReportPhishingRequest(
phishing_url,
score,
thumbnail,
NewCallback(this, &ClientSideDetectionServiceTest::SendRequestDone));
phishing_url_ = phishing_url;
msg_loop_.Run(); // Waits until callback is called.
return is_phishing_;
}
void SetModelFetchResponse(std::string response_data, bool success) {
factory_->SetFakeResponse(ClientSideDetectionService::kClientModelUrl,
response_data, success);
}
void SetClientReportPhishingResponse(std::string response_data,
bool success) {
factory_->SetFakeResponse(
ClientSideDetectionService::kClientReportPhishingUrl,
response_data, success);
}
protected:
scoped_ptr<ClientSideDetectionService> csd_service_;
scoped_ptr<FakeURLFetcherFactory> factory_;
MessageLoop msg_loop_;
private:
void GetModelFileDone(base::PlatformFile model_file) {
model_file_ = model_file;
msg_loop_.Quit();
}
void SendRequestDone(GURL phishing_url, bool is_phishing) {
ASSERT_EQ(phishing_url, phishing_url_);
is_phishing_ = is_phishing;
msg_loop_.Quit();
}
scoped_ptr<BrowserThread> browser_thread_;
base::PlatformFile model_file_;
scoped_ptr<BrowserThread> file_thread_;
GURL phishing_url_;
bool is_phishing_;
};
TEST_F(ClientSideDetectionServiceTest, TestFetchingModel) {
ScopedTempDir tmp_dir;
ASSERT_TRUE(tmp_dir.CreateUniqueTempDir());
FilePath model_path = tmp_dir.path().AppendASCII("model");
// The first time we create the csd service the model file does not exist so
// we expect there to be a fetch.
SetModelFetchResponse("BOGUS MODEL", true);
csd_service_.reset(ClientSideDetectionService::Create(model_path, NULL));
base::PlatformFile model_file = GetModelFile();
EXPECT_NE(model_file, base::kInvalidPlatformFileValue);
EXPECT_EQ(ReadModelFile(model_file), "BOGUS MODEL");
// If you call GetModelFile() multiple times you always get the same platform
// file back. We don't re-open the file.
EXPECT_EQ(GetModelFile(), model_file);
// The second time the model already exists on disk. In this case there
// should not be any fetch. To ensure that we clear the factory.
factory_->ClearFakeReponses();
csd_service_.reset(ClientSideDetectionService::Create(model_path, NULL));
model_file = GetModelFile();
EXPECT_NE(model_file, base::kInvalidPlatformFileValue);
EXPECT_EQ(ReadModelFile(model_file), "BOGUS MODEL");
// If the model does not exist and the fetch fails we should get an error.
model_path = tmp_dir.path().AppendASCII("another_model");
SetModelFetchResponse("", false /* success */);
csd_service_.reset(ClientSideDetectionService::Create(model_path, NULL));
EXPECT_EQ(GetModelFile(), base::kInvalidPlatformFileValue);
}
TEST_F(ClientSideDetectionServiceTest, ServiceObjectDeletedBeforeCallbackDone) {
SetModelFetchResponse("bogus model", true /* success */);
ScopedTempDir tmp_dir;
ASSERT_TRUE(tmp_dir.CreateUniqueTempDir());
csd_service_.reset(ClientSideDetectionService::Create(
tmp_dir.path().AppendASCII("model"), NULL));
EXPECT_TRUE(csd_service_.get() != NULL);
// We delete the client-side detection service class even though the callbacks
// haven't run yet.
csd_service_.reset();
// Waiting for the callbacks to run should not crash even if the service
// object is gone.
msg_loop_.RunAllPending();
}
TEST_F(ClientSideDetectionServiceTest, SendClientReportPhishingRequest) {
SetModelFetchResponse("bogus model", true /* success */);
ScopedTempDir tmp_dir;
ASSERT_TRUE(tmp_dir.CreateUniqueTempDir());
csd_service_.reset(ClientSideDetectionService::Create(
tmp_dir.path().AppendASCII("model"), NULL));
// Invalid thumbnail.
SkBitmap thumbnail;
GURL url("http://a.com/");
double score = 0.4; // Some random client score.
EXPECT_FALSE(SendClientReportPhishingRequest(url, score, thumbnail));
// Valid thumbnail but the server returns an error.
thumbnail.setConfig(SkBitmap::kARGB_8888_Config, 100, 100);
ASSERT_TRUE(thumbnail.allocPixels());
thumbnail.eraseRGB(255, 0, 0);
SetClientReportPhishingResponse("", false /* fail */);
EXPECT_FALSE(SendClientReportPhishingRequest(url, score, thumbnail));
// Invalid response body from the server.
SetClientReportPhishingResponse("invalid proto response", true /* success */);
EXPECT_FALSE(SendClientReportPhishingRequest(url, score, thumbnail));
// Normal behavior.
ClientPhishingResponse response;
response.set_phishy(true);
SetClientReportPhishingResponse(response.SerializeAsString(),
true /* success */);
EXPECT_TRUE(SendClientReportPhishingRequest(url, score, thumbnail));
response.set_phishy(false);
SetClientReportPhishingResponse(response.SerializeAsString(),
true /* success */);
EXPECT_FALSE(SendClientReportPhishingRequest(url, score, thumbnail));
}
} // namespace safe_browsing
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