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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <algorithm>
#include <memory>
#include <set>
#include <string>
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/strings/strcat.h"
#include "build/build_config.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "components/browsing_data/content/conditional_cache_counting_helper.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/simple_url_loader_test_helper.h"
#include "net/test/embedded_test_server/default_handlers.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/simple_url_loader.h"
using browsing_data::ConditionalCacheCountingHelper;
using content::BrowserThread;
class ConditionalCacheCountingHelperBrowserTest : public InProcessBrowserTest {
public:
const int64_t kTimeoutMs = 1000;
ConditionalCacheCountingHelperBrowserTest() {
EXPECT_TRUE(embedded_test_server()->InitializeAndListen());
}
void SetUpOnMainThread() override {
net::test_server::RegisterDefaultHandlers(embedded_test_server());
embedded_test_server()->StartAcceptingConnections();
}
void CountCallback(bool is_upper_limit, int64_t size) {
// Negative values represent an unexpected error.
DCHECK(size >= 0 || size == net::ERR_ABORTED);
DCHECK_CURRENTLY_ON(BrowserThread::UI);
last_size_ = size;
last_is_upper_limit_ = is_upper_limit;
if (run_loop_)
run_loop_->Quit();
}
void WaitForTasksOnIOThread() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
run_loop_ = std::make_unique<base::RunLoop>();
run_loop_->Run();
}
void CountEntries(base::Time begin_time, base::Time end_time) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
last_size_ = -1;
ConditionalCacheCountingHelper::Count(
browser()->profile()->GetDefaultStoragePartition(), begin_time,
end_time,
base::BindOnce(
&ConditionalCacheCountingHelperBrowserTest::CountCallback,
base::Unretained(this)));
}
int64_t GetResult() {
DCHECK_GT(last_size_, 0);
return last_size_;
}
int64_t IsUpperLimit() { return last_is_upper_limit_; }
int64_t GetResultOrError() { return last_size_; }
void CreateCacheEntries(const std::set<std::string>& keys) {
for (const std::string& key : keys) {
// A cache entry is synthesized by fetching a cacheable URL
// from the test server.
std::unique_ptr<network::ResourceRequest> request =
std::make_unique<network::ResourceRequest>();
request->url =
embedded_test_server()->GetURL(base::StrCat({"/cachetime/", key}));
// Populate the Network Isolation Key so that it is cacheable.
url::Origin origin =
url::Origin::Create(embedded_test_server()->base_url());
request->trusted_params = network::ResourceRequest::TrustedParams();
request->trusted_params->isolation_info =
net::IsolationInfo::CreateForInternalRequest(origin);
request->site_for_cookies =
request->trusted_params->isolation_info.site_for_cookies();
content::SimpleURLLoaderTestHelper simple_loader_helper;
std::unique_ptr<network::SimpleURLLoader> simple_loader =
network::SimpleURLLoader::Create(std::move(request),
TRAFFIC_ANNOTATION_FOR_TESTS);
simple_loader->DownloadToStringOfUnboundedSizeUntilCrashAndDie(
browser()
->profile()
->GetDefaultStoragePartition()
->GetURLLoaderFactoryForBrowserProcess()
.get(),
simple_loader_helper.GetCallbackDeprecated());
simple_loader_helper.WaitForCallback();
}
}
private:
std::unique_ptr<base::RunLoop> run_loop_;
int64_t last_size_;
bool last_is_upper_limit_;
};
// Tests that ConditionalCacheCountingHelper only counts those cache entries
// that match the condition.
// TODO(crbug.com/40816226): The test is flaky on Win.
#if BUILDFLAG(IS_WIN)
#define MAYBE_Count DISABLED_Count
#else
#define MAYBE_Count Count
#endif
IN_PROC_BROWSER_TEST_F(ConditionalCacheCountingHelperBrowserTest, MAYBE_Count) {
// Create 5 entries.
std::set<std::string> keys1 = {"1", "2", "3", "4", "5"};
base::Time t1 = base::Time::Now();
CreateCacheEntries(keys1);
base::PlatformThread::Sleep(base::Milliseconds(kTimeoutMs));
base::Time t2 = base::Time::Now();
base::PlatformThread::Sleep(base::Milliseconds(kTimeoutMs));
std::set<std::string> keys2 = {"6", "7"};
CreateCacheEntries(keys2);
base::PlatformThread::Sleep(base::Milliseconds(kTimeoutMs));
base::Time t3 = base::Time::Now();
// Count all entries.
CountEntries(t1, t3);
WaitForTasksOnIOThread();
int64_t size_1_3 = GetResult();
// Count everything
CountEntries(base::Time(), base::Time::Max());
WaitForTasksOnIOThread();
EXPECT_EQ(size_1_3, GetResult());
// Count the size of the first set of entries.
CountEntries(t1, t2);
WaitForTasksOnIOThread();
int64_t size_1_2 = GetResult();
// Count the size of the second set of entries.
CountEntries(t2, t3);
WaitForTasksOnIOThread();
int64_t size_2_3 = GetResult();
if (IsUpperLimit()) {
EXPECT_EQ(size_1_2, size_1_3);
EXPECT_EQ(size_2_3, size_1_3);
} else {
EXPECT_GT(size_1_2, 0);
EXPECT_GT(size_2_3, 0);
EXPECT_LT(size_1_2, size_1_3);
EXPECT_LT(size_2_3, size_1_3);
EXPECT_EQ(size_1_2 + size_2_3, size_1_3);
}
}
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