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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/json/json_reader.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/test/bind.h"
#include "base/test/scoped_run_loop_timeout.h"
#include "base/test/test_timeouts.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/public/test/test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/test/embedded_test_server/controllable_http_response.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "storage/browser/quota/quota_manager.h"
#include "storage/browser/quota/quota_settings.h"
namespace content {
namespace {
void SetQuotaSettingsOnIOThread(
scoped_refptr<storage::QuotaManager> quota_manager) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
storage::QuotaSettings settings;
settings.pool_size = 10LL * 1024 * 1024 * 1024; // 10 GB
settings.per_storage_key_quota = 5LL * 1024 * 1024 * 1024; // 5 GB
quota_manager->SetQuotaSettings(settings);
}
} // namespace
class CacheStorageBlobBrowserTest : public ContentBrowserTest {
public:
void SetUpOnMainThread() override {
ContentBrowserTest::SetUpOnMainThread();
// Set a large quota for the test.
base::RunLoop run_loop;
storage::QuotaManager* quota_manager = shell()
->web_contents()
->GetBrowserContext()
->GetDefaultStoragePartition()
->GetQuotaManager();
GetIOThreadTaskRunner({})->PostTaskAndReply(
FROM_HERE,
base::BindOnce(&SetQuotaSettingsOnIOThread,
base::RetainedRef(quota_manager)),
run_loop.QuitClosure());
run_loop.Run();
}
void RunAndMatchFileTest(const std::string& script,
uint64_t file_size,
bool check_boundary) {
base::test::ScopedRunLoopTimeout timeout(
FROM_HERE, TestTimeouts::action_max_timeout() * 5);
auto response =
std::make_unique<net::test_server::ControllableHttpResponse>(
embedded_test_server(), "/test");
embedded_test_server()->ServeFilesFromSourceDirectory("content/test/data");
ASSERT_TRUE(embedded_test_server()->Start());
ASSERT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/cache_storage/test.html")));
// Open a cache and fetch a resource. The fetch will hang until we send a
// response from the server.
ASSERT_TRUE(ExecJs(shell(), script));
SendFile(std::move(response), file_size);
auto result = EvalJs(shell(), "window.p");
ASSERT_TRUE(result.is_ok());
ASSERT_TRUE(result.is_dict());
const base::Value::Dict& result_dict = result.ExtractDict();
const std::string* text = result_dict.FindString("text");
ASSERT_TRUE(text);
std::string expected_prefix = CreateChunk(80);
EXPECT_EQ(expected_prefix, *text);
if (check_boundary) {
const std::string* boundary_text = result_dict.FindString("boundaryText");
ASSERT_TRUE(boundary_text);
EXPECT_EQ(expected_prefix, *boundary_text);
}
std::optional<double> length = result_dict.FindDouble("length");
ASSERT_TRUE(length);
EXPECT_EQ(file_size, static_cast<uint64_t>(*length));
}
void SendFile(
std::unique_ptr<net::test_server::ControllableHttpResponse> response,
uint64_t file_size) {
// Wait for the request and then send the response.
response->WaitForRequest();
response->Send(
"HTTP/1.1 200 OK\r\n"
"Content-Type: application/octet-stream\r\n"
"Transfer-Encoding: chunked\r\n"
"\r\n");
constexpr uint64_t kChunkSize = 1024 * 1024;
std::string chunk = CreateChunk(kChunkSize);
std::string chunk_header =
base::StringPrintf("%" PRIx64 "\r\n", kChunkSize);
for (uint64_t i = 0; i < file_size / kChunkSize; ++i) {
response->Send(chunk_header);
response->Send(chunk);
response->Send("\r\n");
}
response->Send("0\r\n\r\n");
response->Done();
}
std::string CreateChunk(uint64_t size) {
constexpr std::string kChunkPattern = "abcdefgh";
std::string chunk;
chunk.reserve(size);
for (uint64_t i = 0; i < size / kChunkPattern.length(); ++i) {
chunk += kChunkPattern;
}
return chunk;
}
};
IN_PROC_BROWSER_TEST_F(CacheStorageBlobBrowserTest, PutAndMatch) {
constexpr uint64_t kFileSize = 100LL * 1024 * 1024;
RunAndMatchFileTest(
R"((async () => {
window.p = new Promise(async (resolve, reject) => {
const cache = await caches.open('test-cache');
const response = await fetch('/test');
await cache.put('test-request', response);
const cachedResponse = await cache.match('test-request');
if (typeof cachedResponse === 'undefined') {
reject('undefined');
return;
}
const blob = await cachedResponse.blob();
const prefixBlob = blob.slice(0, 80);
const prefixText = await prefixBlob.text();
resolve({text: prefixText, length: blob.size});
});
})())",
kFileSize, /*check_boundary=*/false);
}
IN_PROC_BROWSER_TEST_F(CacheStorageBlobBrowserTest, AddAndMatch) {
constexpr uint64_t kFileSize = 100LL * 1024 * 1024;
RunAndMatchFileTest(
R"((async () => {
window.p = new Promise(async (resolve, reject) => {
const cache = await caches.open('test-cache');
await cache.add('/test');
const cachedResponse = await cache.match('/test');
if (typeof cachedResponse === 'undefined') {
reject('undefined');
return;
}
const blob = await cachedResponse.blob();
const prefixBlob = blob.slice(0, 80);
const prefixText = await prefixBlob.text();
resolve({text: prefixText, length: blob.size});
});
})())",
kFileSize, /*check_boundary=*/false);
}
// Tests for large files (2GB+ file size) are set to manual due to the execution
// time and the disk space limitation.
IN_PROC_BROWSER_TEST_F(CacheStorageBlobBrowserTest, MANUAL_PutAndMatchLarge) {
constexpr uint64_t kLargeFileSize = (2LL * 1024 + 1) * 1024 * 1024;
RunAndMatchFileTest(
R"((async () => {
window.p = new Promise(async (resolve, reject) => {
const cache = await caches.open('test-cache');
const response = await fetch('/test');
await cache.put('test-request', response);
const cachedResponse = await cache.match('test-request');
if (typeof cachedResponse === 'undefined') {
reject('undefined');
return;
}
const blob = await cachedResponse.blob();
const prefixBlob = blob.slice(0, 80);
const prefixText = await prefixBlob.text();
const kInt32Max = 2147483647;
const boundaryBlob = blob.slice(kInt32Max - 47, kInt32Max + 33);
const boundaryText = await boundaryBlob.text();
resolve({text: prefixText, boundaryText: boundaryText,
length: blob.size});
});
})())",
kLargeFileSize, /*check_boundary=*/true);
}
IN_PROC_BROWSER_TEST_F(CacheStorageBlobBrowserTest, MANUAL_AddAndMatchLarge) {
constexpr uint64_t kLargeFileSize = (2LL * 1024 + 1) * 1024 * 1024;
RunAndMatchFileTest(
R"((async () => {
window.p = new Promise(async (resolve, reject) => {
const cache = await caches.open('test-cache');
await cache.add('/test');
const cachedResponse = await cache.match('/test');
if (typeof cachedResponse === 'undefined') {
reject('undefined');
return;
}
const blob = await cachedResponse.blob();
const prefixBlob = blob.slice(0, 80);
const prefixText = await prefixBlob.text();
const kInt32Max = 2147483647;
const boundaryBlob = blob.slice(kInt32Max - 47, kInt32Max + 33);
const boundaryText = await boundaryBlob.text();
resolve({text: prefixText, boundaryText: boundaryText,
length: blob.size});
});
})())",
kLargeFileSize, /*check_boundary=*/true);
}
} // namespace content
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