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// Copyright 2013 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.
#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SYNC_SERVICE_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SYNC_SERVICE_H_
#include <string>
#include <vector>
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "base/version.h"
#include "chrome/browser/extensions/sync_bundle.h"
#include "components/keyed_service/core/keyed_service.h"
#include "extensions/browser/extension_prefs_observer.h"
#include "extensions/browser/extension_registry_observer.h"
#include "sync/api/syncable_service.h"
class ExtensionService;
class Profile;
namespace extensions {
class Extension;
class ExtensionSet;
class ExtensionSyncData;
} // namespace extensions
// SyncableService implementation responsible for the APPS and EXTENSIONS data
// types, i.e. "proper" apps/extensions (not themes).
class ExtensionSyncService : public syncer::SyncableService,
public KeyedService,
public extensions::ExtensionRegistryObserver,
public extensions::ExtensionPrefsObserver {
public:
explicit ExtensionSyncService(Profile* profile);
~ExtensionSyncService() override;
// Convenience function to get the ExtensionSyncService for a BrowserContext.
static ExtensionSyncService* Get(content::BrowserContext* context);
// Notifies Sync (if needed) of a newly-installed extension or a change to
// an existing extension. Call this when you change an extension setting that
// is synced as part of ExtensionSyncData (e.g. incognito_enabled or
// all_urls_enabled).
void SyncExtensionChangeIfNeeded(const extensions::Extension& extension);
// Returns whether the extension with the given |id| will be re-enabled once
// it is updated to the given |version|. This happens when we get a Sync
// update telling us to re-enable a newer version than what is currently
// installed.
bool HasPendingReenable(const std::string& id,
const base::Version& version) const;
// syncer::SyncableService implementation.
syncer::SyncMergeResult MergeDataAndStartSyncing(
syncer::ModelType type,
const syncer::SyncDataList& initial_sync_data,
scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
scoped_ptr<syncer::SyncErrorFactory> sync_error_factory) override;
void StopSyncing(syncer::ModelType type) override;
syncer::SyncDataList GetAllSyncData(syncer::ModelType type) const override;
syncer::SyncError ProcessSyncChanges(
const tracked_objects::Location& from_here,
const syncer::SyncChangeList& change_list) override;
void SetSyncStartFlareForTesting(
const syncer::SyncableService::StartSyncFlare& flare);
// Special hack: There was a bug where themes incorrectly ended up in the
// syncer::EXTENSIONS type. This is for cleaning up the data. crbug.com/558299
// DO NOT USE FOR ANYTHING ELSE!
// TODO(treib,devlin): Remove this after M52 or so.
void DeleteThemeDoNotUse(const extensions::Extension& theme);
private:
FRIEND_TEST_ALL_PREFIXES(TwoClientAppsSyncTest, UnexpectedLaunchType);
FRIEND_TEST_ALL_PREFIXES(ExtensionDisabledGlobalErrorTest,
HigherPermissionsFromSync);
ExtensionService* extension_service() const;
// extensions::ExtensionRegistryObserver:
void OnExtensionInstalled(content::BrowserContext* browser_context,
const extensions::Extension* extension,
bool is_update) override;
void OnExtensionUninstalled(content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UninstallReason reason) override;
// extensions::ExtensionPrefsObserver:
void OnExtensionStateChanged(const std::string& extension_id,
bool state) override;
void OnExtensionDisableReasonsChanged(const std::string& extension_id,
int disabled_reasons) override;
// Gets the SyncBundle for the given |type|.
extensions::SyncBundle* GetSyncBundle(syncer::ModelType type);
const extensions::SyncBundle* GetSyncBundle(syncer::ModelType type) const;
// Creates the ExtensionSyncData for the given app/extension.
extensions::ExtensionSyncData CreateSyncData(
const extensions::Extension& extension) const;
// Applies the given change coming in from the server to the local state.
void ApplySyncData(const extensions::ExtensionSyncData& extension_sync_data);
// Applies the bookmark app specific parts of |extension_sync_data|.
void ApplyBookmarkAppSyncData(
const extensions::ExtensionSyncData& extension_sync_data);
// Collects the ExtensionSyncData for all installed apps or extensions.
std::vector<extensions::ExtensionSyncData> GetLocalSyncDataList(
syncer::ModelType type) const;
// Helper for GetLocalSyncDataList.
void FillSyncDataList(
const extensions::ExtensionSet& extensions,
syncer::ModelType type,
std::vector<extensions::ExtensionSyncData>* sync_data_list) const;
// Returns whether the given extension should be synced by this class.
// Filters out unsyncable extensions as well as themes (which are handled by
// ThemeSyncableService instead).
bool ShouldSync(const extensions::Extension& extension) const;
// The normal profile associated with this ExtensionSyncService.
Profile* profile_;
ScopedObserver<extensions::ExtensionRegistry,
extensions::ExtensionRegistryObserver> registry_observer_;
ScopedObserver<extensions::ExtensionPrefs,
extensions::ExtensionPrefsObserver> prefs_observer_;
// When this is set to true, any incoming updates (from the observers as well
// as from explicit SyncExtensionChangeIfNeeded calls) are ignored. This is
// set during ApplySyncData, so that ExtensionSyncService doesn't end up
// notifying itself while applying sync changes.
bool ignore_updates_;
extensions::SyncBundle app_sync_bundle_;
extensions::SyncBundle extension_sync_bundle_;
// Map from extension id to pending update data. Used for two things:
// - To send the new version back to the sync server while we're waiting for
// an extension to update.
// - For re-enables, to defer granting permissions until the version matches.
struct PendingUpdate;
std::map<std::string, PendingUpdate> pending_updates_;
// Run()ning tells sync to try and start soon, because syncable changes
// have started happening. It will cause sync to call us back
// asynchronously via MergeDataAndStartSyncing as soon as possible.
syncer::SyncableService::StartSyncFlare flare_;
DISALLOW_COPY_AND_ASSIGN(ExtensionSyncService);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_SYNC_SERVICE_H_
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