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// Copyright 2015 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_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WHITELIST_H
#define COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WHITELIST_H
#include <memory>
#include <string>
#include <vector>
#include "base/macros.h"
class PrefRegistrySimple;
class PrefService;
namespace base {
class DictionaryValue;
} // namespace base
namespace proximity_auth {
// This class stores a persistent set of whitelisted bluetooth devices
// represented by pairs (bluetooth_address, public_key). The class enforces a
// bijective mapping: no two device share the same bluetooth_address or
// the same public_key.
class BluetoothLowEnergyDeviceWhitelist {
public:
// Creates a device whitelist backed by preferences registered in
// |pref_service| (persistent across browser restarts). |pref_service| should
// have been registered using RegisterPrefs(). Not owned, must out live this
// instance.
explicit BluetoothLowEnergyDeviceWhitelist(PrefService* pref_service);
virtual ~BluetoothLowEnergyDeviceWhitelist();
// Registers the prefs used by this class to the given |pref_service|.
static void RegisterPrefs(PrefRegistrySimple* registry);
// Virtual for testing
virtual bool HasDeviceWithAddress(const std::string& bluetooth_address) const;
bool HasDeviceWithPublicKey(const std::string& public_key) const;
std::string GetDevicePublicKey(const std::string& bluetooth_address) const;
std::string GetDeviceAddress(const std::string& public_key) const;
std::vector<std::string> GetPublicKeys() const;
// Adds a device with |bluetooth_address| and |public_key|. The
// bluetooth_address <-> public_key mapping is unique, i.e. if there is
// another device with same bluetooth address or public key that device will
// be replaced.
void AddOrUpdateDevice(const std::string& bluetooth_address,
const std::string& public_key);
// Removes the unique device with |bluetooth_address| (|public_key|). Returns
// false if no device was found.
bool RemoveDeviceWithAddress(const std::string& bluetooth_address);
bool RemoveDeviceWithPublicKey(const std::string& public_key);
private:
const base::DictionaryValue* GetWhitelistPrefs() const;
// Contains perferences that outlive the lifetime of this object and across
// process restarts.
// Not owned and must outlive this instance.
PrefService* pref_service_;
DISALLOW_COPY_AND_ASSIGN(BluetoothLowEnergyDeviceWhitelist);
};
} // namespace proximity_auth
#endif // COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_WHITELIST_H
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