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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/synchronization/lock.h"
#include "base/thread_annotations.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browsing_data_remover.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/browsing_data_remover_test_util.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_request.h"
#include "net/test/embedded_test_server/http_response.h"
#include "net/test/embedded_test_server/request_handler_util.h"
#include "services/network/public/cpp/cors/cors.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace content {
namespace {
const char kTestPath[] = "/loader/cors_preflight.html";
const std::u16string kTestDone = std::u16string(u"DONE");
// Tests end to end behaviors on CORS preflight and its cache.
class CorsPreflightCacheBrowserTest : public ContentBrowserTest {
public:
CorsPreflightCacheBrowserTest(const CorsPreflightCacheBrowserTest&) = delete;
CorsPreflightCacheBrowserTest& operator=(
const CorsPreflightCacheBrowserTest&) = delete;
protected:
CorsPreflightCacheBrowserTest() = default;
~CorsPreflightCacheBrowserTest() override = default;
void SetUpOnMainThread() override {
ASSERT_TRUE(embedded_test_server()->Start());
cross_origin_test_server_.RegisterRequestHandler(base::BindRepeating(
&CorsPreflightCacheBrowserTest::HandleRequest, base::Unretained(this)));
ASSERT_TRUE(cross_origin_test_server_.Start());
}
protected:
uint16_t cross_origin_port() { return cross_origin_test_server_.port(); }
size_t options_count() {
base::AutoLock lock(lock_);
return options_count_;
}
size_t get_count() {
base::AutoLock lock(lock_);
return get_count_;
}
private:
std::unique_ptr<net::test_server::HttpResponse> HandleRequest(
const net::test_server::HttpRequest& request) {
std::unique_ptr<net::test_server::BasicHttpResponse> response =
std::make_unique<net::test_server::BasicHttpResponse>();
response->set_code(net::HTTP_OK);
response->AddCustomHeader(
network::cors::header_names::kAccessControlAllowOrigin, "*");
if (request.method == net::test_server::METHOD_OPTIONS) {
response->AddCustomHeader(
network::cors::header_names::kAccessControlAllowMethods,
"GET, OPTIONS");
response->AddCustomHeader(
network::cors::header_names::kAccessControlAllowHeaders, "foo");
response->AddCustomHeader(
network::cors::header_names::kAccessControlMaxAge, "60");
base::AutoLock lock(lock_);
options_count_++;
} else if (request.method == net::test_server::METHOD_GET) {
base::AutoLock lock(lock_);
get_count_++;
}
return response;
}
net::EmbeddedTestServer cross_origin_test_server_;
base::Lock lock_;
size_t options_count_ GUARDED_BY(lock_) = 0;
size_t get_count_ GUARDED_BY(lock_) = 0;
};
IN_PROC_BROWSER_TEST_F(CorsPreflightCacheBrowserTest, Default) {
std::unique_ptr<TitleWatcher> watcher1 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;default", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher1->WaitAndGetTitle());
EXPECT_EQ(1u, options_count());
EXPECT_EQ(1u, get_count());
// Make another fetch request, and OPTIONS request hits the preflight cache.
std::unique_ptr<TitleWatcher> watcher2 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;default", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher2->WaitAndGetTitle());
EXPECT_EQ(1u, options_count());
EXPECT_EQ(2u, get_count());
// Make another fetch request with reload cache mode, and it should not hit
// the preflight cache.
std::unique_ptr<TitleWatcher> watcher3 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;reload", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher3->WaitAndGetTitle());
EXPECT_EQ(2u, options_count());
EXPECT_EQ(3u, get_count());
}
IN_PROC_BROWSER_TEST_F(CorsPreflightCacheBrowserTest, ClearCache) {
// Cache should be empty at first. Expect OPTIONS
std::unique_ptr<TitleWatcher> watcher1 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;default", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher1->WaitAndGetTitle());
EXPECT_EQ(1u, options_count());
EXPECT_EQ(1u, get_count());
// Make another fetch request, and OPTIONS request hits the preflight cache.
std::unique_ptr<TitleWatcher> watcher2 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;default", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher2->WaitAndGetTitle());
EXPECT_EQ(1u, options_count());
EXPECT_EQ(2u, get_count());
// Clear the PreflightCache, make a request and it should not hit the
// Preflight cache
BrowsingDataRemover* remover =
shell()->web_contents()->GetBrowserContext()->GetBrowsingDataRemover();
BrowsingDataRemoverCompletionObserver completion_observer(remover);
remover->RemoveAndReply(
base::Time(), base::Time::Max(), BrowsingDataRemover::DATA_TYPE_CACHE,
content::BrowsingDataRemover::ORIGIN_TYPE_UNPROTECTED_WEB,
&completion_observer);
completion_observer.BlockUntilCompletion();
// Make another fetch request with reload cache mode, and it should not hit
// the preflight cache.
std::unique_ptr<TitleWatcher> watcher3 =
std::make_unique<TitleWatcher>(shell()->web_contents(), kTestDone);
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL(base::StringPrintf(
"%s?;%d;reload", kTestPath, cross_origin_port()))));
EXPECT_EQ(kTestDone, watcher3->WaitAndGetTitle());
EXPECT_EQ(2u, options_count());
EXPECT_EQ(3u, get_count());
}
} // namespace
} // namespace content
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