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// Copyright 2020 The Chromium Authors
// 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 <vector>
#include "base/memory/raw_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/policy/policy_test_utils.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/core/common/policy_types.h"
#include "components/policy/policy_constants.h"
#include "content/public/browser/browser_context.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/download_test_observer.h"
#include "content/public/test/signed_exchange_browser_test_helper.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_request.h"
#include "url/gurl.h"
namespace policy {
class SignedExchangePolicyTest : public PolicyTest {
public:
SignedExchangePolicyTest() = default;
~SignedExchangePolicyTest() override = default;
void SetUp() override {
embedded_test_server()->ServeFilesFromSourceDirectory("content/test/data");
embedded_test_server()->RegisterRequestMonitor(base::BindRepeating(
&SignedExchangePolicyTest::MonitorRequest, base::Unretained(this)));
ASSERT_TRUE(embedded_test_server()->Start());
sxg_test_helper_.SetUp();
PolicyTest::SetUp();
}
void TearDownOnMainThread() override {
PolicyTest::TearDownOnMainThread();
sxg_test_helper_.TearDownOnMainThread();
}
protected:
void SetSignedExchangePolicy(bool enabled) {
PolicyMap policies;
policies.Set(key::kSignedHTTPExchangeEnabled, POLICY_LEVEL_MANDATORY,
POLICY_SCOPE_USER, POLICY_SOURCE_CLOUD, base::Value(enabled),
nullptr);
UpdateProviderPolicy(policies);
}
void InstallUrlInterceptor(const GURL& url, const std::string& data_path) {
sxg_test_helper_.InstallUrlInterceptor(url, data_path);
}
bool HadSignedExchangeInAcceptHeader(const GURL& url) const {
const auto it = url_accept_header_map_.find(url);
if (it == url_accept_header_map_.end())
return false;
return it->second.find("application/signed-exchange") != std::string::npos;
}
private:
void MonitorRequest(const net::test_server::HttpRequest& request) {
const auto it = request.headers.find("Accept");
if (it == request.headers.end())
return;
url_accept_header_map_[request.base_url.Resolve(request.relative_url)] =
it->second;
}
content::SignedExchangeBrowserTestHelper sxg_test_helper_;
std::map<GURL, std::string> url_accept_header_map_;
};
IN_PROC_BROWSER_TEST_F(SignedExchangePolicyTest, SignedExchangeDisabled) {
SetSignedExchangePolicy(false);
content::DownloadTestObserverTerminal download_observer(
browser()->profile()->GetDownloadManager(), 1,
content::DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_DENY);
GURL url = embedded_test_server()->GetURL("/sxg/test.example.org_test.sxg");
ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(), url));
download_observer.WaitForFinished();
// Check that the SXG file was not loaded as a page, but downloaded.
std::vector<raw_ptr<download::DownloadItem, VectorExperimental>> downloads;
browser()->profile()->GetDownloadManager()->GetAllDownloads(&downloads);
ASSERT_EQ(1u, downloads.size());
EXPECT_EQ(downloads[0]->GetURL(), url);
ASSERT_FALSE(HadSignedExchangeInAcceptHeader(url));
}
IN_PROC_BROWSER_TEST_F(SignedExchangePolicyTest, SignedExchangeEnabled) {
SetSignedExchangePolicy(true);
InstallUrlInterceptor(GURL("https://test.example.org/test/"),
"content/test/data/sxg/fallback.html");
GURL url = embedded_test_server()->GetURL("/sxg/test.example.org_test.sxg");
std::u16string title = u"Fallback URL response";
content::TitleWatcher title_watcher(
browser()->tab_strip_model()->GetActiveWebContents(), title);
ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(), url));
// Check that the SXG file was handled as a Signed Exchange, and the
// navigation was redirected to the SXG's fallback URL.
EXPECT_EQ(title, title_watcher.WaitAndGetTitle());
ASSERT_TRUE(HadSignedExchangeInAcceptHeader(url));
}
} // namespace policy
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