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      1 // Copyright 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef SYNC_SYNCABLE_NIGORI_HANDLER_H_
      6 #define SYNC_SYNCABLE_NIGORI_HANDLER_H_
      7 
      8 #include "sync/base/sync_export.h"
      9 #include "sync/internal_api/public/base/model_type.h"
     10 
     11 namespace google{
     12 namespace protobuf{
     13 template <typename T>
     14 class RepeatedPtrField;
     15 }
     16 }
     17 
     18 namespace sync_pb {
     19 class NigoriSpecifics;
     20 }
     21 
     22 namespace syncer {
     23 namespace syncable {
     24 
     25 class BaseTransaction;
     26 
     27 // Sync internal interface for dealing with nigori node and querying
     28 // the current set of encrypted types. Not thread safe, so a sync transaction
     29 // must be held by a caller whenever invoking methods.
     30 class SYNC_EXPORT_PRIVATE NigoriHandler {
     31  public:
     32   NigoriHandler();
     33   virtual ~NigoriHandler();
     34 
     35   // Apply a nigori node update, updating the internal encryption state
     36   // accordingly.
     37   virtual void ApplyNigoriUpdate(
     38       const sync_pb::NigoriSpecifics& nigori,
     39       syncable::BaseTransaction* const trans) = 0;
     40 
     41   // Store the current encrypt everything/encrypted types state into |nigori|.
     42   virtual void UpdateNigoriFromEncryptedTypes(
     43       sync_pb::NigoriSpecifics* nigori,
     44       syncable::BaseTransaction* const trans) const = 0;
     45 
     46   // Whether a keystore key needs to be requested from the sync server.
     47   virtual bool NeedKeystoreKey(
     48       syncable::BaseTransaction* const trans) const = 0;
     49 
     50   // Set the keystore keys the server returned for this account.
     51   // Returns true on success, false otherwise.
     52   virtual bool SetKeystoreKeys(
     53       const google::protobuf::RepeatedPtrField<std::string>& keys,
     54       syncable::BaseTransaction* const trans) = 0;
     55 
     56   // Returns the set of currently encrypted types.
     57   virtual ModelTypeSet GetEncryptedTypes(
     58       syncable::BaseTransaction* const trans) const = 0;
     59 };
     60 
     61 }  // namespace syncable
     62 }  // namespace syncer
     63 
     64 #endif  // SYNC_SYNCABLE_NIGORI_HANDLER_H_
     65