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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/chrome_iwa_client.h"
#include "base/strings/stringprintf.h"
#include "base/types/expected_macros.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/web_applications/isolated_web_apps/commands/isolated_web_app_install_command_helper.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_features.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_trust_checker.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_update_manager.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_url_info.h"
#include "chrome/browser/web_applications/isolated_web_apps/pending_install_info.h"
#include "chrome/browser/web_applications/web_app_provider.h"
#include "chrome/browser/web_applications/web_app_registrar.h"
#include "chrome/browser/web_applications/web_app_ui_manager.h"
#include "chrome/browser/web_applications/web_app_utils.h"
#include "chrome/common/url_constants.h"
#include "components/web_package/signed_web_bundles/signed_web_bundle_id.h"
#include "components/webapps/isolated_web_apps/types/url_loading_types.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/isolated_web_apps_policy.h"
#include "content/public/browser/storage_partition_config.h"
#include "content/public/browser/web_contents.h"
namespace web_app {
namespace {
constexpr char kInstallPagePath[] = "/.well-known/_generated_install_page.html";
constexpr char kInstallPageContent[] = R"(
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="Content-Security-Policy" content="default-src 'self'">
<link rel="manifest" href="/.well-known/manifest.webmanifest" />
</head>
</html>
)";
base::expected<IwaSourceWithModeOrGeneratedResponse, std::string> GetIwaSource(
base::WeakPtr<Profile> profile,
const webapps::AppId& iwa_id) {
if (!profile) {
return base::unexpected("Profile has shut down.");
}
WebAppRegistrar& registrar =
WebAppProvider::GetForWebApps(profile.get())->registrar_unsafe();
const WebApp* iwa = registrar.GetAppById(iwa_id);
if (!iwa || !iwa->isolation_data()) {
return base::unexpected(
base::StringPrintf("There's no matching Isolated Web App installed."));
}
if (iwa->isolation_data()->location().dev_mode() &&
!IsIwaDevModeEnabled(profile.get())) {
return base::unexpected(
"Isolated Web App Developer Mode is not enabled or blocked by policy.");
}
return IwaSourceWithMode::FromStorageLocation(
profile->GetPath(), iwa->isolation_data()->location());
}
void GetIwaSourceForRequestImpl(
base::WeakPtr<Profile> profile,
const web_package::SignedWebBundleId& web_bundle_id,
const network::ResourceRequest& request,
const std::optional<content::FrameTreeNodeId>& frame_tree_node,
base::OnceCallback<void(base::expected<IwaSourceWithModeOrGeneratedResponse,
std::string>)> callback) {
if (!profile) {
std::move(callback).Run(base::unexpected("Profile has shut down."));
return;
}
if (frame_tree_node) {
auto* web_contents =
content::WebContents::FromFrameTreeNodeId(*frame_tree_node);
if (web_contents == nullptr) {
// `web_contents` can be `nullptr` in certain edge cases, such as when
// the browser window closes concurrently with an ongoing request (see
// crbug.com/1477761). Return an error if that is the case, instead of
// silently not querying `IsolatedWebAppPendingInstallInfo`. Should we
// ever find a case where we _do_ want to continue request processing
// even though the `WebContents` no longer exists, we can change the
// below code to skip checking `IsolatedWebAppPendingInstallInfo`
// instead of returning an error.
std::move(callback).Run(base::unexpected(
"Unable to find WebContents based on frame tree node id."));
return;
}
if (const auto& source =
IsolatedWebAppPendingInstallInfo::FromWebContents(*web_contents)
.source()) {
if (request.url.path() == kInstallPagePath) {
std::move(callback).Run(
GeneratedResponse{.response_body = kInstallPageContent});
} else {
std::move(callback).Run(*source);
}
return;
}
}
webapps::AppId iwa_id =
IsolatedWebAppUrlInfo::CreateFromSignedWebBundleId(web_bundle_id)
.app_id();
auto* provider = WebAppProvider::GetForWebApps(profile.get());
if (provider->iwa_update_manager().IsUpdateBeingApplied(iwa_id)) {
// TODO(crbug.com/432676258): How likely is this case?
provider->iwa_update_manager().PrioritizeUpdateAndWait(
iwa_id,
// We ignore whether or not the update was applied successfully - if it
// succeeds, we send the request to the updated version. If it fails, we
// send the request to the previous version and rely on the update
// system to retry the update at a later point.
base::IgnoreArgs<IsolatedWebAppUpdateApplyTask::CompletionStatus>(
base::BindOnce(&GetIwaSource, profile, iwa_id)
.Then(std::move(callback))));
return;
}
return std::move(callback).Run(GetIwaSource(profile, iwa_id));
}
} // namespace
void ChromeIwaClient::CreateSingleton() {
static base::NoDestructor<ChromeIwaClient> instance;
instance.get();
}
base::expected<void, std::string> ChromeIwaClient::ValidateTrust(
content::BrowserContext* browser_context,
const web_package::SignedWebBundleId& web_bundle_id,
bool dev_mode) {
return IsolatedWebAppTrustChecker::IsTrusted(
*Profile::FromBrowserContext(browser_context), web_bundle_id, dev_mode);
}
base::expected<web_package::SignedWebBundleId, std::string>
ChromeIwaClient::CreateWebBundleIdFromURL(const GURL& url) {
return IsolatedWebAppUrlInfo::Create(url).transform(
[](const auto& url_info) { return url_info.web_bundle_id(); });
}
GURL ChromeIwaClient::CreateBaseURLForWebBundleId(
const web_package::SignedWebBundleId& web_bundle_id) {
return GURL(
base::StrCat({chrome::kIsolatedAppScheme, url::kStandardSchemeSeparator,
web_bundle_id.id()}));
}
void ChromeIwaClient::RunWhenAppCloses(
content::BrowserContext* browser_context,
const web_package::SignedWebBundleId& web_bundle_id,
base::OnceClosure callback) {
WebAppProvider::GetForWebApps(Profile::FromBrowserContext(browser_context))
->ui_manager()
.NotifyOnAllAppWindowsClosed(
IsolatedWebAppUrlInfo::CreateFromSignedWebBundleId(web_bundle_id)
.app_id(),
std::move(callback));
}
void ChromeIwaClient::GetIwaSourceForRequest(
content::BrowserContext* browser_context,
const web_package::SignedWebBundleId& web_bundle_id,
const network::ResourceRequest& request,
const std::optional<content::FrameTreeNodeId>& frame_tree_node,
base::OnceCallback<void(base::expected<IwaSourceWithModeOrGeneratedResponse,
std::string>)> callback) {
Profile* profile = Profile::FromBrowserContext(browser_context);
WebAppProvider::GetForWebApps(profile)->on_registry_ready().Post(
FROM_HERE, base::BindOnce(&GetIwaSourceForRequestImpl,
profile->GetWeakPtr(), web_bundle_id, request,
frame_tree_node, std::move(callback)));
}
content::StoragePartition* ChromeIwaClient::GetStoragePartition(
content::BrowserContext* browser_context,
const web_package::SignedWebBundleId& web_bundle_id) {
return browser_context->GetStoragePartition(
IsolatedWebAppUrlInfo::CreateFromSignedWebBundleId(web_bundle_id)
.storage_partition_config(browser_context),
/*can_create=*/false);
}
} // namespace web_app
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