103 lines
3.7 KiB
C++
103 lines
3.7 KiB
C++
// Copyright 2017 The Chromium Embedded Framework Authors.
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// Portions copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/extensions/api/storage/sync_value_store_cache.h"
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#include <stddef.h>
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#include <limits>
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#include <utility>
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#include "components/value_store/value_store_factory.h"
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#include "content/public/browser/browser_thread.h"
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#include "extensions/browser/api/storage/backend_task_runner.h"
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#include "extensions/browser/api/storage/value_store_util.h"
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#include "extensions/browser/api/storage/weak_unlimited_settings_storage.h"
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#include "extensions/common/api/storage.h"
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#include "extensions/common/extension.h"
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#include "extensions/common/permissions/permissions_data.h"
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using content::BrowserThread;
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namespace extensions::cef {
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namespace {
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// Returns the quota limit for local storage, taken from the schema in
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// extensions/common/api/storage.json.
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SettingsStorageQuotaEnforcer::Limits GetLocalQuotaLimits() {
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SettingsStorageQuotaEnforcer::Limits limits = {
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static_cast<size_t>(api::storage::local::QUOTA_BYTES),
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std::numeric_limits<size_t>::max(), std::numeric_limits<size_t>::max()};
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return limits;
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}
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} // namespace
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SyncValueStoreCache::SyncValueStoreCache(
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scoped_refptr<value_store::ValueStoreFactory> factory)
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: storage_factory_(std::move(factory)), quota_(GetLocalQuotaLimits()) {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
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}
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SyncValueStoreCache::~SyncValueStoreCache() {
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DCHECK(IsOnBackendSequence());
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}
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void SyncValueStoreCache::RunWithValueStoreForExtension(
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StorageCallback callback,
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scoped_refptr<const Extension> extension) {
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DCHECK(IsOnBackendSequence());
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value_store::ValueStore* storage = GetStorage(extension.get());
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// A neat way to implement unlimited storage; if the extension has the
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// unlimited storage permission, force through all calls to Set().
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if (extension->permissions_data()->HasAPIPermission(
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mojom::APIPermissionID::kUnlimitedStorage)) {
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WeakUnlimitedSettingsStorage unlimited_storage(storage);
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std::move(callback).Run(&unlimited_storage);
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} else {
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std::move(callback).Run(storage);
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}
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}
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void SyncValueStoreCache::DeleteStorageSoon(const std::string& extension_id) {
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DCHECK(IsOnBackendSequence());
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storage_map_.erase(extension_id);
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value_store_util::DeleteValueStore(settings_namespace::SYNC,
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value_store_util::ModelType::APP,
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extension_id, storage_factory_);
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value_store_util::DeleteValueStore(settings_namespace::SYNC,
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value_store_util::ModelType::EXTENSION,
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extension_id, storage_factory_);
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}
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value_store::ValueStore* SyncValueStoreCache::GetStorage(
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const Extension* extension) {
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auto iter = storage_map_.find(extension->id());
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if (iter != storage_map_.end()) {
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return iter->second.get();
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}
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value_store_util::ModelType model_type =
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extension->is_app() ? value_store_util::ModelType::APP
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: value_store_util::ModelType::EXTENSION;
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std::unique_ptr<value_store::ValueStore> store =
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value_store_util::CreateSettingsStore(settings_namespace::LOCAL,
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model_type, extension->id(),
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storage_factory_);
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std::unique_ptr<SettingsStorageQuotaEnforcer> storage(
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new SettingsStorageQuotaEnforcer(quota_, std::move(store)));
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DCHECK(storage.get());
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value_store::ValueStore* storage_ptr = storage.get();
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storage_map_[extension->id()] = std::move(storage);
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return storage_ptr;
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}
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} // namespace extensions::cef
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