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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "base/test/scoped_feature_list.h"
#include "content/browser/first_party_sets/test/scoped_mock_first_party_sets_handler.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.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/shell/browser/shell.h"
#include "net/base/features.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "testing/gtest/include/gtest/gtest.h"
constexpr char kHostA[] = "a.test";
class FirstPartySetsDeadlockingQueriesBrowserTest
: public content::ContentBrowserTest {
public:
FirstPartySetsDeadlockingQueriesBrowserTest()
: https_server_(net::EmbeddedTestServer::TYPE_HTTPS) {
scoped_feature_list_.InitWithFeatures(
/*enabled_features=*/{},
/*disabled_features=*/{net::features::kWaitForFirstPartySetsInit});
}
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
https_server_.SetSSLConfig(net::EmbeddedTestServer::CERT_TEST_NAMES);
https_server_.AddDefaultHandlers();
ASSERT_TRUE(https_server_.Start());
}
void CreatedBrowserMainParts(
content::BrowserMainParts* browser_main_parts) override {
// `SetUpOnMainThread` and `SetUp` are called too late in the browsertest
// lifecycle; we have to substitute the FirstPartySetsHandler early, before
// the browser process is fully started.
scoped_first_party_sets_handler_ =
std::make_unique<content::ScopedMockFirstPartySetsHandler>();
scoped_first_party_sets_handler_->set_should_deadlock(true);
}
void SetCrossSiteCookieOnDomain(const std::string& domain) {
GURL domain_url = https_server_.GetURL(domain, "/");
std::string cookie = base::StrCat({"cross-site=", domain});
ASSERT_TRUE(content::SetCookie(
shell()->web_contents()->GetBrowserContext(), domain_url,
base::StrCat({cookie, ";SameSite=None;Secure;Domain=", domain})));
ASSERT_THAT(content::GetCookies(
shell()->web_contents()->GetBrowserContext(), domain_url),
testing::HasSubstr(cookie));
}
content::RenderFrameHost* GetPrimaryMainFrame() {
return shell()->web_contents()->GetPrimaryMainFrame();
}
net::test_server::EmbeddedTestServer& https_server() { return https_server_; }
content::ScopedMockFirstPartySetsHandler& handler() {
return *scoped_first_party_sets_handler_;
}
private:
net::test_server::EmbeddedTestServer https_server_;
base::test::ScopedFeatureList scoped_feature_list_;
std::unique_ptr<content::ScopedMockFirstPartySetsHandler>
scoped_first_party_sets_handler_;
};
IN_PROC_BROWSER_TEST_F(FirstPartySetsDeadlockingQueriesBrowserTest,
NoDeadlock) {
SetCrossSiteCookieOnDomain(kHostA);
// This test fixture has been set up such that First-Party Sets never responds
// to any query (even though technically it does finish initializing).
// However, since `kWaitForFirstPartySetsInit` is disabled, that should not
// cause a deadlock, and network requests should still finish (even those that
// require cookies).
//
// Note that calls to `document.requestStorageAccess()` will deadlock since
// they rely on FPS having been initialized.
ASSERT_TRUE(content::NavigateToURL(
shell()->web_contents(),
https_server().GetURL(kHostA, "/echoheader?cookie")));
EXPECT_EQ("cross-site=a.test", content::EvalJs(GetPrimaryMainFrame(),
"document.body.textContent"));
}
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