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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 "chrome/browser/web_applications/isolated_web_apps/signed_web_bundle_metadata.h"
#include <memory>
#include <string>
#include <string_view>
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/types/expected.h"
#include "base/types/expected_macros.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/web_applications/callback_utils.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_response_reader_factory.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_source.h"
#include "chrome/browser/web_applications/isolated_web_apps/isolated_web_app_storage_location.h"
#include "chrome/browser/web_applications/isolated_web_apps/jobs/prepare_install_info_job.h"
#include "chrome/browser/web_applications/web_app_install_info.h"
#include "chrome/browser/web_applications/web_app_provider.h"
#include "chrome/browser/web_applications/web_contents/web_app_data_retriever.h"
#include "chrome/browser/web_applications/web_contents/web_contents_manager.h"
#include "components/webapps/browser/web_contents/web_app_url_loader.h"
#include "content/public/browser/web_contents.h"
namespace web_app {
namespace {
using WebAppInstalInfoCallback =
base::OnceCallback<void(base::expected<WebAppInstallInfo, std::string>)>;
class WebAppInstallInfoFetcher {
public:
explicit WebAppInstallInfoFetcher(Profile* profile,
WebAppProvider* provider,
const IsolatedWebAppUrlInfo& url_info,
const IwaSourceBundleWithMode& source)
: profile_(*profile),
provider_(*provider),
source_(source),
helper_(std::make_unique<IsolatedWebAppInstallCommandHelper>(
url_info,
provider->web_contents_manager().CreateDataRetriever(),
IsolatedWebAppInstallCommandHelper::
CreateDefaultResponseReaderFactory(*profile))),
web_contents_(
IsolatedWebAppInstallCommandHelper::CreateIsolatedWebAppWebContents(
*profile)) {}
void FetchAndReply(WebAppInstalInfoCallback callback) {
callback_ = std::move(callback);
RunChainedWeakCallbacks(
weak_factory_.GetWeakPtr(),
&WebAppInstallInfoFetcher::CheckTrustAndSignatures,
&WebAppInstallInfoFetcher::PrepareInstallInfo,
&WebAppInstallInfoFetcher::CreateSignedWebBundleMetadata);
}
private:
using TrustCheckResult = base::expected<void, std::string>;
void FailWithError(const std::string& error_message) {
CHECK(callback_);
std::move(callback_).Run(base::unexpected(error_message));
}
void CheckTrustAndSignatures(base::OnceClosure next_step_callback) {
helper_->CheckTrustAndSignatures(
source_, &*profile_,
base::BindOnce(&WebAppInstallInfoFetcher::OnTrustAndSignaturesChecked,
weak_factory_.GetWeakPtr(),
std::move(next_step_callback)));
}
void OnTrustAndSignaturesChecked(base::OnceClosure next_step_callback,
TrustCheckResult trust_check_result) {
RETURN_IF_ERROR(trust_check_result,
[&](const std::string& error) { FailWithError(error); });
std::move(next_step_callback).Run();
}
void PrepareInstallInfo(
base::OnceCallback<void(PrepareInstallInfoJob::InstallInfoOrFailure)>
next_step_callback) {
prepare_install_info_job_ = PrepareInstallInfoJob::CreateAndStart(
*profile_, source_,
/*expected_version=*/std::nullopt, *web_contents_, *helper_,
provider_->web_contents_manager().CreateUrlLoader(),
std::move(next_step_callback));
}
void CreateSignedWebBundleMetadata(
PrepareInstallInfoJob::InstallInfoOrFailure result) {
prepare_install_info_job_.reset();
ASSIGN_OR_RETURN(
WebAppInstallInfo install_info, std::move(result),
[&](const auto& failure) { FailWithError(failure.message); });
CHECK(callback_);
std::move(callback_).Run(std::move(install_info));
}
const raw_ref<Profile> profile_;
const raw_ref<WebAppProvider> provider_;
IwaSourceBundleWithMode source_;
WebAppInstalInfoCallback callback_;
std::unique_ptr<IsolatedWebAppInstallCommandHelper> helper_;
std::unique_ptr<content::WebContents> web_contents_;
std::unique_ptr<PrepareInstallInfoJob> prepare_install_info_job_;
base::WeakPtrFactory<WebAppInstallInfoFetcher> weak_factory_{this};
};
} // namespace
// static
void SignedWebBundleMetadata::Create(
Profile* profile,
WebAppProvider* provider,
const IsolatedWebAppUrlInfo& url_info,
const IwaSourceBundleWithMode& source,
SignedWebBundleMetadata::SignedWebBundleMetadataCallback callback) {
auto fetcher = std::make_unique<WebAppInstallInfoFetcher>(profile, provider,
url_info, source);
WebAppInstallInfoFetcher& fetcher_ref = *fetcher.get();
fetcher_ref.FetchAndReply(base::BindOnce(
[](const IsolatedWebAppUrlInfo& url_info,
const IwaSourceBundleWithMode& source,
SignedWebBundleMetadata::SignedWebBundleMetadataCallback callback,
base::expected<WebAppInstallInfo, std::string> install_info) {
std::move(callback).Run(install_info.transform(
[&url_info, &source](const WebAppInstallInfo& install_info)
-> SignedWebBundleMetadata {
return SignedWebBundleMetadata(
url_info, source, install_info.title,
install_info.isolated_web_app_version,
install_info.icon_bitmaps);
}));
},
url_info, source,
std::move(callback).Then(base::OnceClosure(
base::DoNothingWithBoundArgs(std::move(fetcher))))));
}
// static
SignedWebBundleMetadata SignedWebBundleMetadata::CreateForTesting(
const IsolatedWebAppUrlInfo& url_info,
const IwaSourceBundleWithMode& source,
const std::u16string& app_name,
const base::Version& version,
const IconBitmaps& icons) {
return SignedWebBundleMetadata(url_info, source, app_name, version, icons);
}
SignedWebBundleMetadata::SignedWebBundleMetadata(
const IsolatedWebAppUrlInfo& url_info,
const IwaSourceBundleWithMode& source,
const std::u16string& app_name,
const base::Version& version,
const IconBitmaps& icons)
: url_info_(url_info),
app_name_(app_name),
version_(version),
icons_(icons) {}
SignedWebBundleMetadata::~SignedWebBundleMetadata() = default;
SignedWebBundleMetadata::SignedWebBundleMetadata(
const SignedWebBundleMetadata&) = default;
SignedWebBundleMetadata& SignedWebBundleMetadata::operator=(
const SignedWebBundleMetadata&) = default;
bool SignedWebBundleMetadata::operator==(
const SignedWebBundleMetadata& other) const {
return url_info_ == other.url_info_ && app_name_ == other.app_name_ &&
version_ == other.version_ && icons_ == other.icons_;
}
} // namespace web_app
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