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// Copyright 2024 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/component_updater/translate_kit_language_pack_component_installer.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/functional/callback.h"
#include "base/logging.h"
#include "base/strings/strcat.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/on_device_translation/constants.h"
#include "chrome/browser/on_device_translation/language_pack_util.h"
#include "components/component_updater/component_updater_service.h"
#include "components/crx_file/id_util.h"
#include "components/update_client/update_client_errors.h"
#include "content/public/browser/browser_thread.h"
namespace component_updater {
namespace {
using ::on_device_translation::LanguagePackKey;
// The manifest name prefix of the TranslateKit language pack component.
constexpr char kTranslateKitLanguagePackManifestNamePrefix[] =
"Chrome TranslateKit ";
} // namespace
TranslateKitLanguagePackComponentInstallerPolicy::
TranslateKitLanguagePackComponentInstallerPolicy(
PrefService* pref_service,
LanguagePackKey language_pack_key)
: language_pack_key_(language_pack_key), pref_service_(pref_service) {}
TranslateKitLanguagePackComponentInstallerPolicy::
~TranslateKitLanguagePackComponentInstallerPolicy() = default;
bool TranslateKitLanguagePackComponentInstallerPolicy::VerifyInstallation(
const base::Value::Dict& manifest,
const base::FilePath& install_dir) const {
// Check that the sub-directories of the package install directory exist.
return std::ranges::all_of(
GetPackageInstallSubDirNamesForVerification(language_pack_key_),
[&install_dir](const std::string& sub_dir_name) {
return base::PathExists(install_dir.AppendASCII(sub_dir_name));
});
}
bool TranslateKitLanguagePackComponentInstallerPolicy::
SupportsGroupPolicyEnabledComponentUpdates() const {
return true;
}
bool TranslateKitLanguagePackComponentInstallerPolicy::
RequiresNetworkEncryption() const {
return false;
}
update_client::CrxInstaller::Result
TranslateKitLanguagePackComponentInstallerPolicy::OnCustomInstall(
const base::Value::Dict& manifest,
const base::FilePath& install_dir) {
// Nothing custom here.
return update_client::CrxInstaller::Result(0);
}
void TranslateKitLanguagePackComponentInstallerPolicy::OnCustomUninstall() {}
void TranslateKitLanguagePackComponentInstallerPolicy::ComponentReady(
const base::Version& version,
const base::FilePath& install_dir,
base::Value::Dict manifest) {
CHECK(pref_service_);
pref_service_->SetFilePath(
on_device_translation::GetComponentPathPrefName(GetConfig()),
install_dir);
}
base::FilePath
TranslateKitLanguagePackComponentInstallerPolicy::GetRelativeInstallDir()
const {
return base::FilePath(on_device_translation::
kTranslateKitLanguagePackInstallationRelativeDir)
.AppendASCII(
on_device_translation::GetPackageInstallDirName(language_pack_key_));
}
void TranslateKitLanguagePackComponentInstallerPolicy::GetHash(
std::vector<uint8_t>* hash) const {
auto const& config = GetConfig();
hash->assign(std::begin(config.public_key_sha),
std::end(config.public_key_sha));
}
std::string TranslateKitLanguagePackComponentInstallerPolicy::GetName() const {
return base::StrCat(
{kTranslateKitLanguagePackManifestNamePrefix,
on_device_translation::GetPackageNameSuffix(language_pack_key_)});
}
update_client::InstallerAttributes
TranslateKitLanguagePackComponentInstallerPolicy::GetInstallerAttributes()
const {
return update_client::InstallerAttributes();
}
const on_device_translation::LanguagePackComponentConfig&
TranslateKitLanguagePackComponentInstallerPolicy::GetConfig() const {
return on_device_translation::GetLanguagePackComponentConfig(
language_pack_key_);
}
// static
void TranslateKitLanguagePackComponentInstallerPolicy::UpdateComponentOnDemand(
LanguagePackKey language_pack_key) {
auto language_pack_crx_id = crx_file::id_util::GenerateIdFromHash(
on_device_translation::GetLanguagePackComponentConfig(language_pack_key)
.public_key_sha);
g_browser_process->component_updater()->GetOnDemandUpdater().OnDemandUpdate(
language_pack_crx_id,
component_updater::OnDemandUpdater::Priority::FOREGROUND,
base::BindOnce([](update_client::Error error) {
if (error != update_client::Error::NONE &&
error != update_client::Error::UPDATE_IN_PROGRESS) {
// TODO(crbug.com/358030919): Add UMA.
LOG(ERROR) << "Failed to update TranslateKit language pack:"
<< static_cast<int>(error);
}
}));
}
void RegisterTranslateKitLanguagePackComponent(
ComponentUpdateService* cus,
PrefService* pref_service,
LanguagePackKey language_pack_key,
base::OnceClosure registered_callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
// If the component is already installed, do nothing.
const std::vector<std::string> component_ids = cus->GetComponentIDs();
if (std::ranges::find(
component_ids,
crx_file::id_util::GenerateIdFromHash(
on_device_translation::GetLanguagePackComponentConfig(
language_pack_key)
.public_key_sha)) != component_ids.end()) {
return;
}
pref_service->SetBoolean(
on_device_translation::GetRegisteredFlagPrefName(
*on_device_translation::kLanguagePackComponentConfigMap.at(
language_pack_key)),
true);
base::MakeRefCounted<ComponentInstaller>(
std::make_unique<TranslateKitLanguagePackComponentInstallerPolicy>(
pref_service, language_pack_key))
->Register(cus, std::move(registered_callback));
}
void RegisterTranslateKitLanguagePackComponentsForUpdate(
ComponentUpdateService* cus,
PrefService* pref_service) {
for (const auto& [language_pack_key, config] :
on_device_translation::kLanguagePackComponentConfigMap) {
if (pref_service->GetBoolean(
on_device_translation::GetRegisteredFlagPrefName(*config))) {
RegisterTranslateKitLanguagePackComponent(
cus, pref_service, language_pack_key, base::OnceClosure());
}
}
}
void UninstallTranslateKitLanguagePackComponent(
ComponentUpdateService* cus,
PrefService* pref_service,
LanguagePackKey language_pack_key) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
const auto* config =
on_device_translation::kLanguagePackComponentConfigMap.at(
language_pack_key);
pref_service->SetBoolean(
on_device_translation::GetRegisteredFlagPrefName(*config), false);
pref_service->SetFilePath(
on_device_translation::GetComponentPathPrefName(*config),
base::FilePath());
cus->UnregisterComponent(crx_file::id_util::GenerateIdFromHash(
on_device_translation::GetLanguagePackComponentConfig(language_pack_key)
.public_key_sha));
}
} // namespace component_updater
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