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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 "components/component_updater/installer_policies/amount_extraction_heuristic_regexes_component_installer.h"
#include <optional>
#include <vector>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/task/thread_pool.h"
#include "base/values.h"
#include "components/autofill/core/browser/metrics/payments/amount_extraction_metrics.h"
#include "components/autofill/core/browser/payments/amount_extraction_heuristic_regexes.h"
namespace component_updater {
namespace {
const base::FilePath::CharType
kAmountExtractionHeuristicRegexesBinaryPbFileName[] =
FILE_PATH_LITERAL("heuristic_regexes.binarypb");
// The SHA256 of the SubjectPublicKeyInfo used to sign the extension.
// The extension id is: hajigopbbjhghbfimgkfmpenfkclmohk
constexpr std::array<uint8_t, 32>
kAmountExtractionHeuristicRegexesPublicKeySHA256 = {
0x70, 0x98, 0x6e, 0xf1, 0x19, 0x76, 0x71, 0x58, 0xc6, 0xa5, 0xcf,
0x4d, 0x5a, 0x2b, 0xce, 0x7a, 0x37, 0x44, 0x42, 0x77, 0x6c, 0x2d,
0x2e, 0xa2, 0x9c, 0x08, 0x7a, 0x2c, 0x0f, 0x07, 0xe5, 0x89};
base::FilePath GetInstalledPath(const base::FilePath& base) {
return base.Append(kAmountExtractionHeuristicRegexesBinaryPbFileName);
}
static std::optional<std::string> LoadAmountExtractionHeuristicRegexesFromDisk(
const base::FilePath& pb_path) {
std::string binary_pb;
if (!base::ReadFileToString(pb_path, &binary_pb)) {
autofill::autofill_metrics::LogAmountExtractionComponentInstallationResult(
autofill::autofill_metrics::
AmountExtractionComponentInstallationResult::
kReadingBinaryFileFailed);
return std::nullopt;
}
return binary_pb;
}
static void PopulateAmountExtractionHeuristicRegexesData(
const base::FilePath& pb_path,
std::optional<std::string> binary_pb) {
if (!binary_pb || binary_pb.value().empty()) {
autofill::autofill_metrics::LogAmountExtractionComponentInstallationResult(
autofill::autofill_metrics::
AmountExtractionComponentInstallationResult::kEmptyBinaryFile);
return;
}
autofill::payments::AmountExtractionHeuristicRegexes::GetInstance()
.PopulateStringFromComponent(std::move(*binary_pb));
}
} // namespace
AmountExtractionHeuristicRegexesInstallerPolicy::
AmountExtractionHeuristicRegexesInstallerPolicy() = default;
AmountExtractionHeuristicRegexesInstallerPolicy::
~AmountExtractionHeuristicRegexesInstallerPolicy() = default;
bool AmountExtractionHeuristicRegexesInstallerPolicy::
SupportsGroupPolicyEnabledComponentUpdates() const {
return true;
}
bool AmountExtractionHeuristicRegexesInstallerPolicy::
RequiresNetworkEncryption() const {
return false;
}
update_client::CrxInstaller::Result
AmountExtractionHeuristicRegexesInstallerPolicy::OnCustomInstall(
const base::Value::Dict& /* manifest */,
const base::FilePath& /* install_dir */) {
return update_client::CrxInstaller::Result(0); // Nothing custom here.
}
void AmountExtractionHeuristicRegexesInstallerPolicy::OnCustomUninstall() {}
void AmountExtractionHeuristicRegexesInstallerPolicy::ComponentReady(
const base::Version& version,
const base::FilePath& install_dir,
base::Value::Dict /* manifest */) {
const base::FilePath pb_path = GetInstalledPath(install_dir);
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::MayBlock(), base::TaskPriority::BEST_EFFORT},
base::BindOnce(&LoadAmountExtractionHeuristicRegexesFromDisk, pb_path),
base::BindOnce(&PopulateAmountExtractionHeuristicRegexesData, pb_path));
}
// Called during startup and installation before ComponentReady().
bool AmountExtractionHeuristicRegexesInstallerPolicy::VerifyInstallation(
const base::Value::Dict& /* manifest */,
const base::FilePath& install_dir) const {
bool installation_result = base::PathExists(GetInstalledPath(install_dir));
if (!installation_result) {
autofill::autofill_metrics::LogAmountExtractionComponentInstallationResult(
autofill::autofill_metrics::
AmountExtractionComponentInstallationResult::
kInvalidInstallationPath);
}
return installation_result;
}
base::FilePath
AmountExtractionHeuristicRegexesInstallerPolicy::GetRelativeInstallDir() const {
return base::FilePath(FILE_PATH_LITERAL("AmountExtractionHeuristicRegexes"));
}
void AmountExtractionHeuristicRegexesInstallerPolicy::GetHash(
std::vector<uint8_t>* hash) const {
hash->assign(std::begin(kAmountExtractionHeuristicRegexesPublicKeySHA256),
std::end(kAmountExtractionHeuristicRegexesPublicKeySHA256));
}
std::string AmountExtractionHeuristicRegexesInstallerPolicy::GetName() const {
return "Amount Extraction Heuristic Regexes";
}
update_client::InstallerAttributes
AmountExtractionHeuristicRegexesInstallerPolicy::GetInstallerAttributes()
const {
return update_client::InstallerAttributes();
}
void RegisterAmountExtractionHeuristicRegexesComponent(
ComponentUpdateService* cus) {
auto installer = base::MakeRefCounted<ComponentInstaller>(
std::make_unique<AmountExtractionHeuristicRegexesInstallerPolicy>());
installer->Register(cus, base::OnceClosure());
}
} // namespace component_updater
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