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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 "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_throttle.h"
#include "base/barrier_closure.h"
#include "base/check_deref.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/web_applications/web_app_provider.h"
#include "components/webapps/isolated_web_apps/iwa_key_distribution_info_provider.h"
#include "content/public/browser/isolated_web_apps_policy.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/navigation_throttle.h"
#include "content/public/browser/site_isolation_mode.h"
#include "content/public/browser/site_isolation_policy.h"
#include "content/public/browser/web_contents.h"
namespace web_app {
// static
void IsolatedWebAppThrottle::MaybeCreateAndAdd(
content::NavigationThrottleRegistry& registry) {
if (content::AreIsolatedWebAppsEnabled(registry.GetNavigationHandle()
.GetWebContents()
->GetBrowserContext())) {
registry.AddThrottle(std::make_unique<IsolatedWebAppThrottle>(registry));
}
}
IsolatedWebAppThrottle::IsolatedWebAppThrottle(
content::NavigationThrottleRegistry& registry)
: content::NavigationThrottle(registry) {}
IsolatedWebAppThrottle::~IsolatedWebAppThrottle() = default;
IsolatedWebAppThrottle::ThrottleCheckResult
IsolatedWebAppThrottle::WillStartRequest() {
if (!is_isolated_web_app_navigation()) {
return PROCEED;
}
IwaKeyDistributionInfoProvider& key_distribution_info_provider =
CHECK_DEREF(IwaKeyDistributionInfoProvider::GetInstance());
WebAppProvider& provider =
CHECK_DEREF(WebAppProvider::GetForWebApps(profile()));
if (provider.is_registry_ready() &&
key_distribution_info_provider.OnMaybeDownloadedComponentDataReady()
.is_signaled()) {
return PROCEED;
}
auto initialized_components_barrier =
base::BarrierClosure(2u, base::BindOnce(&IsolatedWebAppThrottle::Resume,
weak_ptr_factory_.GetWeakPtr()));
provider.on_registry_ready().Post(FROM_HERE, initialized_components_barrier);
key_distribution_info_provider.OnMaybeDownloadedComponentDataReady().Post(
FROM_HERE, initialized_components_barrier);
return DEFER;
}
Profile* IsolatedWebAppThrottle::profile() {
return Profile::FromBrowserContext(
navigation_handle()->GetWebContents()->GetBrowserContext());
}
bool IsolatedWebAppThrottle::is_isolated_web_app_navigation() {
return content::SiteIsolationPolicy::ShouldUrlUseApplicationIsolationLevel(
profile(), navigation_handle()->GetURL());
}
const char* IsolatedWebAppThrottle::GetNameForLogging() {
return "IsolatedWebAppThrottle";
}
} // namespace web_app
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