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// 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.
#ifndef COMPONENTS_SYNC_WIFI_WIFI_CREDENTIAL_SYNCABLE_SERVICE_H_
#define COMPONENTS_SYNC_WIFI_WIFI_CREDENTIAL_SYNCABLE_SERVICE_H_
#include <map>
#include <memory>
#include <string>
#include <utility>
#include "base/macros.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/sync/model/sync_change_processor.h"
#include "components/sync/model/syncable_service.h"
#include "components/sync_wifi/wifi_config_delegate.h"
#include "components/sync_wifi/wifi_credential.h"
#include "components/sync_wifi/wifi_security_class.h"
namespace sync_wifi {
// KeyedService that synchronizes WiFi credentials between local settings,
// and Chrome Sync.
//
// This service does not necessarily own the storage for WiFi
// credentials. In particular, on ChromeOS, WiFi credential storage is
// managed by the ChromeOS connection manager ("Shill").
//
// On ChromeOS, this class should only be instantiated
// for the primary user profile, as that is the only profile for
// which a Shill profile is loaded.
class WifiCredentialSyncableService : public syncer::SyncableService,
public KeyedService {
public:
// Constructs a syncable service. Changes from Chrome Sync will be
// applied locally by |network_config_delegate|. Local changes will
// be propagated to Chrome Sync using the |sync_processor| provided
// in the call to MergeDataAndStartSyncing.
explicit WifiCredentialSyncableService(
std::unique_ptr<WifiConfigDelegate> network_config_delegate);
~WifiCredentialSyncableService() override;
// syncer::SyncableService implementation.
syncer::SyncMergeResult MergeDataAndStartSyncing(
syncer::ModelType type,
const syncer::SyncDataList& initial_sync_data,
std::unique_ptr<syncer::SyncChangeProcessor> sync_processor,
std::unique_ptr<syncer::SyncErrorFactory> error_handler) override;
void StopSyncing(syncer::ModelType type) override;
syncer::SyncDataList GetAllSyncData(syncer::ModelType type) const override;
syncer::SyncError ProcessSyncChanges(
const tracked_objects::Location& caller_location,
const syncer::SyncChangeList& change_list) override;
// Adds a WiFiCredential to Chrome Sync. |item_id| is a persistent
// identifier which can be used to later remove the credential. It
// is an error to add a network that already exists. It is also an
// error to call this method before MergeDataAndStartSyncing(), or
// after StopSyncing().
//
// TODO(quiche): Allow changing a credential, by addding it again.
// crbug.com/431436
bool AddToSyncedNetworks(const std::string& item_id,
const WifiCredential& credential);
private:
using SsidAndSecurityClass =
std::pair<WifiCredential::SsidBytes, WifiSecurityClass>;
using SsidAndSecurityClassToPassphrase =
std::map<SsidAndSecurityClass, std::string>;
// The syncer::ModelType that this SyncableService processes and
// generates updates for.
static const syncer::ModelType kModelType;
// The object we use to change local network configuration.
const std::unique_ptr<WifiConfigDelegate> network_config_delegate_;
// Our SyncChangeProcessor instance. Used to push changes into
// Chrome Sync.
std::unique_ptr<syncer::SyncChangeProcessor> sync_processor_;
// The networks and passphrases that are already known by Chrome
// Sync. All synced networks must be included in this map, even if
// they do not use passphrases.
SsidAndSecurityClassToPassphrase synced_networks_and_passphrases_;
DISALLOW_COPY_AND_ASSIGN(WifiCredentialSyncableService);
};
} // namespace sync_wifi
#endif // COMPONENTS_SYNC_WIFI_WIFI_CREDENTIAL_SYNCABLE_SERVICE_H_
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