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Add support for Chrome Storage Extension API (issue chromiumembedded#…
…1947) - Supports chrome.storage.local and chrome.storage.sync - chrome.storage.sync behaves identically to chrome.storage.local
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97 changes: 97 additions & 0 deletions
97
libcef/browser/extensions/api/storage/sync_value_store_cache.cc
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,97 @@ | ||
| // Copyright 2017 The Chromium Embedded Framework Authors. | ||
| // Portions copyright 2014 The Chromium Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // 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 "content/public/browser/browser_thread.h" | ||
| #include "extensions/browser/api/storage/backend_task_runner.h" | ||
| #include "extensions/browser/api/storage/weak_unlimited_settings_storage.h" | ||
| #include "extensions/browser/value_store/value_store_factory.h" | ||
| #include "extensions/common/api/storage.h" | ||
| #include "extensions/common/extension.h" | ||
| #include "extensions/common/permissions/permissions_data.h" | ||
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| using content::BrowserThread; | ||
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| namespace extensions { | ||
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| namespace cef { | ||
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| namespace { | ||
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| // Returns the quota limit for local storage, taken from the schema in | ||
| // extensions/common/api/storage.json. | ||
| SettingsStorageQuotaEnforcer::Limits GetLocalQuotaLimits() { | ||
| SettingsStorageQuotaEnforcer::Limits limits = { | ||
| static_cast<size_t>(api::storage::local::QUOTA_BYTES), | ||
| std::numeric_limits<size_t>::max(), std::numeric_limits<size_t>::max()}; | ||
| return limits; | ||
| } | ||
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| } // namespace | ||
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| SyncValueStoreCache::SyncValueStoreCache( | ||
| const scoped_refptr<ValueStoreFactory>& factory) | ||
| : storage_factory_(factory), quota_(GetLocalQuotaLimits()) { | ||
| DCHECK_CURRENTLY_ON(BrowserThread::UI); | ||
| } | ||
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| SyncValueStoreCache::~SyncValueStoreCache() { | ||
| DCHECK(IsOnBackendSequence()); | ||
| } | ||
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| void SyncValueStoreCache::RunWithValueStoreForExtension( | ||
| const StorageCallback& callback, | ||
| scoped_refptr<const Extension> extension) { | ||
| DCHECK(IsOnBackendSequence()); | ||
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| ValueStore* storage = GetStorage(extension.get()); | ||
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| // A neat way to implement unlimited storage; if the extension has the | ||
| // unlimited storage permission, force through all calls to Set(). | ||
| if (extension->permissions_data()->HasAPIPermission( | ||
| APIPermission::kUnlimitedStorage)) { | ||
| WeakUnlimitedSettingsStorage unlimited_storage(storage); | ||
| callback.Run(&unlimited_storage); | ||
| } else { | ||
| callback.Run(storage); | ||
| } | ||
| } | ||
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| void SyncValueStoreCache::DeleteStorageSoon(const std::string& extension_id) { | ||
| DCHECK(IsOnBackendSequence()); | ||
| storage_map_.erase(extension_id); | ||
| storage_factory_->DeleteSettings(settings_namespace::SYNC, | ||
| ValueStoreFactory::ModelType::APP, | ||
| extension_id); | ||
| storage_factory_->DeleteSettings(settings_namespace::SYNC, | ||
| ValueStoreFactory::ModelType::EXTENSION, | ||
| extension_id); | ||
| } | ||
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| ValueStore* SyncValueStoreCache::GetStorage(const Extension* extension) { | ||
| StorageMap::iterator iter = storage_map_.find(extension->id()); | ||
| if (iter != storage_map_.end()) | ||
| return iter->second.get(); | ||
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| ValueStoreFactory::ModelType model_type = | ||
| extension->is_app() ? ValueStoreFactory::ModelType::APP | ||
| : ValueStoreFactory::ModelType::EXTENSION; | ||
| std::unique_ptr<ValueStore> store = storage_factory_->CreateSettingsStore( | ||
| settings_namespace::SYNC, model_type, extension->id()); | ||
| std::unique_ptr<SettingsStorageQuotaEnforcer> storage( | ||
| new SettingsStorageQuotaEnforcer(quota_, std::move(store))); | ||
| DCHECK(storage.get()); | ||
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| ValueStore* storage_ptr = storage.get(); | ||
| storage_map_[extension->id()] = std::move(storage); | ||
| return storage_ptr; | ||
| } | ||
| } // namespace cef | ||
| } // namespace extensions |
56 changes: 56 additions & 0 deletions
56
libcef/browser/extensions/api/storage/sync_value_store_cache.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| // Copyright 2017 The Chromium Embedded Framework Authors. | ||
| // Portions copyright 2014 The Chromium Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #ifndef CEF_LIBCEF_BROWSER_EXTENSIONS_API_STORAGE_SYNC_VALUE_STORE_CACHE_H_ | ||
| #define CEF_LIBCEF_BROWSER_EXTENSIONS_API_STORAGE_SYNC_VALUE_STORE_CACHE_H_ | ||
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| #include <memory> | ||
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| #include "base/compiler_specific.h" | ||
| #include "base/macros.h" | ||
| #include "base/memory/ref_counted.h" | ||
| #include "extensions/browser/api/storage/settings_storage_quota_enforcer.h" | ||
| #include "extensions/browser/api/storage/value_store_cache.h" | ||
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| namespace extensions { | ||
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| class ValueStoreFactory; | ||
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| namespace cef { | ||
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| // Based on LocalValueStoreCache | ||
| // ValueStoreCache for the SYNC namespace. It owns a backend for apps and | ||
| // another for extensions. Each backend takes care of persistence. | ||
| class SyncValueStoreCache : public ValueStoreCache { | ||
| public: | ||
| explicit SyncValueStoreCache(const scoped_refptr<ValueStoreFactory>& factory); | ||
| ~SyncValueStoreCache() override; | ||
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| // ValueStoreCache implementation: | ||
| void RunWithValueStoreForExtension( | ||
| const StorageCallback& callback, | ||
| scoped_refptr<const Extension> extension) override; | ||
| void DeleteStorageSoon(const std::string& extension_id) override; | ||
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| private: | ||
| using StorageMap = std::map<std::string, std::unique_ptr<ValueStore>>; | ||
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| ValueStore* GetStorage(const Extension* extension); | ||
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| // The Factory to use for creating new ValueStores. | ||
| const scoped_refptr<ValueStoreFactory> storage_factory_; | ||
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| // Quota limits (see SettingsStorageQuotaEnforcer). | ||
| const SettingsStorageQuotaEnforcer::Limits quota_; | ||
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| // The collection of ValueStores for local storage. | ||
| StorageMap storage_map_; | ||
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| DISALLOW_COPY_AND_ASSIGN(SyncValueStoreCache); | ||
| }; | ||
| } // namespace cef | ||
| } // namespace extensions | ||
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| #endif // CEF_LIBCEF_BROWSER_EXTENSIONS_API_STORAGE_SYNC_VALUE_STORE_CACHE_H_ |
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