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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.
#include "components/proximity_auth/proximity_auth_pref_manager.h"
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/pref_registry_simple.h"
#include "base/prefs/pref_service.h"
#include "base/prefs/scoped_user_pref_update.h"
#include "base/values.h"
#include "components/proximity_auth/logging/logging.h"
#include "components/proximity_auth/proximity_auth_pref_names.h"
namespace proximity_auth {
ProximityAuthPrefManager::ProximityAuthPrefManager(PrefService* pref_service)
: pref_service_(pref_service) {}
ProximityAuthPrefManager::~ProximityAuthPrefManager() {}
// static
void ProximityAuthPrefManager::RegisterPrefs(PrefRegistrySimple* registry) {
registry->RegisterDictionaryPref(prefs::kProximityAuthRemoteBleDevices);
}
bool ProximityAuthPrefManager::HasDeviceWithAddress(
const std::string& bluetooth_address) const {
return pref_service_->GetDictionary(prefs::kProximityAuthRemoteBleDevices)
->HasKey(bluetooth_address);
}
bool ProximityAuthPrefManager::HasDeviceWithPublicKey(
const std::string& public_key) const {
return !GetDeviceAddress(public_key).empty();
}
std::string ProximityAuthPrefManager::GetDevicePublicKey(
const std::string& bluetooth_address) const {
std::string public_key;
GetRemoteBleDevices()->GetStringWithoutPathExpansion(bluetooth_address,
&public_key);
return public_key;
}
std::string ProximityAuthPrefManager::GetDeviceAddress(
const std::string& public_key) const {
const base::DictionaryValue* remote_ble_devices = GetRemoteBleDevices();
for (base::DictionaryValue::Iterator it(*remote_ble_devices); !it.IsAtEnd();
it.Advance()) {
std::string value_string;
DCHECK(it.value().IsType(base::Value::TYPE_STRING));
if (it.value().GetAsString(&value_string) && value_string == public_key)
return it.key();
}
return std::string();
}
std::vector<std::string> ProximityAuthPrefManager::GetPublicKeys() const {
std::vector<std::string> public_keys;
const base::DictionaryValue* remote_ble_devices = GetRemoteBleDevices();
for (base::DictionaryValue::Iterator it(*remote_ble_devices); !it.IsAtEnd();
it.Advance()) {
std::string value_string;
DCHECK(it.value().IsType(base::Value::TYPE_STRING));
it.value().GetAsString(&value_string);
public_keys.push_back(value_string);
}
return public_keys;
}
void ProximityAuthPrefManager::AddOrUpdateDevice(
const std::string& bluetooth_address,
const std::string& public_key) {
PA_LOG(INFO) << "Adding " << public_key << " , " << bluetooth_address
<< " pair.";
if (HasDeviceWithPublicKey(public_key) &&
GetDeviceAddress(public_key) != bluetooth_address) {
PA_LOG(WARNING) << "Two devices with different bluetooth address, but the "
"same public key were added: "
<< public_key;
RemoveDeviceWithPublicKey(public_key);
}
DictionaryPrefUpdate remote_ble_devices_update(
pref_service_, prefs::kProximityAuthRemoteBleDevices);
remote_ble_devices_update->SetStringWithoutPathExpansion(bluetooth_address,
public_key);
}
bool ProximityAuthPrefManager::RemoveDeviceWithAddress(
const std::string& bluetooth_address) {
DictionaryPrefUpdate remote_ble_devices_update(
pref_service_, prefs::kProximityAuthRemoteBleDevices);
return remote_ble_devices_update->RemoveWithoutPathExpansion(
bluetooth_address, nullptr);
}
bool ProximityAuthPrefManager::RemoveDeviceWithPublicKey(
const std::string& public_key) {
return RemoveDeviceWithAddress(GetDeviceAddress(public_key));
}
const base::DictionaryValue* ProximityAuthPrefManager::GetRemoteBleDevices()
const {
return pref_service_->GetDictionary(prefs::kProximityAuthRemoteBleDevices);
}
} // namespace proximity_auth
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