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network_metadata_store.cc
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network_metadata_store.cc
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// Copyright (c) 2020 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 "chromeos/network/network_metadata_store.h"
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
#include "chromeos/network/network_configuration_handler.h"
#include "chromeos/network/network_connection_handler.h"
#include "chromeos/network/network_handler.h"
#include "chromeos/network/network_state.h"
#include "chromeos/network/network_state_handler.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "third_party/cros_system_api/dbus/shill/dbus-constants.h"
namespace chromeos {
namespace {
const char kNetworkMetadataPref[] = "network_metadata";
const char kLastConnectedTimestampPref[] = "last_connected_timestamp";
const char kIsFromSync[] = "is_from_sync";
const char kIsCreatedByUser[] = "is_created_by_user";
std::string GetPath(const std::string& guid, const std::string& subkey) {
return base::StringPrintf("%s.%s", guid.c_str(), subkey.c_str());
}
} // namespace
// static
void NetworkMetadataStore::RegisterPrefs(PrefRegistrySimple* registry) {
registry->RegisterDictionaryPref(kNetworkMetadataPref);
}
NetworkMetadataStore::NetworkMetadataStore(
NetworkConfigurationHandler* network_configuration_handler,
NetworkConnectionHandler* network_connection_handler,
NetworkStateHandler* network_state_handler,
PrefService* profile_pref_service,
PrefService* device_pref_service)
: network_configuration_handler_(network_configuration_handler),
network_connection_handler_(network_connection_handler),
network_state_handler_(network_state_handler),
profile_pref_service_(profile_pref_service),
device_pref_service_(device_pref_service) {
if (network_connection_handler_) {
network_connection_handler_->AddObserver(this);
}
if (network_configuration_handler_) {
network_configuration_handler_->AddObserver(this);
}
}
NetworkMetadataStore::~NetworkMetadataStore() {
if (network_connection_handler_) {
network_connection_handler_->RemoveObserver(this);
}
if (network_configuration_handler_) {
network_configuration_handler_->RemoveObserver(this);
}
}
void NetworkMetadataStore::ConnectSucceeded(const std::string& service_path) {
const NetworkState* network =
network_state_handler_->GetNetworkState(service_path);
if (!network || network->type() != shill::kTypeWifi) {
return;
}
bool is_first_connection =
GetLastConnectedTimestamp(network->guid()).is_zero();
UpdateLastConnectedTimestamp(network->guid());
if (is_first_connection) {
for (auto& observer : observers_) {
observer.OnFirstConnectionToNetwork(network->guid());
}
}
}
void NetworkMetadataStore::OnConfigurationCreated(
const std::string& service_path,
const std::string& guid) {
SetPref(guid, kIsCreatedByUser, base::Value(true));
}
void NetworkMetadataStore::OnConfigurationModified(
const std::string& service_path,
const std::string& guid,
base::DictionaryValue* set_properties) {
if (!set_properties) {
return;
}
SetPref(guid, kIsFromSync, base::Value(false));
// Only clear last connected if the passphrase changes. Other settings
// (autoconnect, dns, etc.) won't affect the ability to connect to a network.
if (set_properties->HasKey(shill::kPassphraseProperty)) {
SetPref(guid, kLastConnectedTimestampPref, base::Value(0));
}
}
void NetworkMetadataStore::OnConfigurationRemoved(
const std::string& service_path,
const std::string& network_guid) {
RemoveNetworkFromPref(network_guid, device_pref_service_);
RemoveNetworkFromPref(network_guid, profile_pref_service_);
}
void NetworkMetadataStore::RemoveNetworkFromPref(
const std::string& network_guid,
PrefService* pref_service) {
if (!pref_service) {
return;
}
const base::DictionaryValue* dict =
pref_service->GetDictionary(kNetworkMetadataPref);
if (!dict || !dict->HasKey(network_guid)) {
return;
}
base::Value writeable_dict = dict->Clone();
if (!writeable_dict.RemoveKey(network_guid)) {
return;
}
pref_service->Set(kNetworkMetadataPref, writeable_dict);
}
void NetworkMetadataStore::UpdateLastConnectedTimestamp(
const std::string& network_guid) {
double timestamp =
base::Time::Now().ToDeltaSinceWindowsEpoch().InMillisecondsF();
SetPref(network_guid, kLastConnectedTimestampPref, base::Value(timestamp));
}
void NetworkMetadataStore::SetIsConfiguredBySync(
const std::string& network_guid) {
SetPref(network_guid, kIsFromSync, base::Value(true));
}
base::TimeDelta NetworkMetadataStore::GetLastConnectedTimestamp(
const std::string& network_guid) {
const base::Value* timestamp =
GetPref(network_guid, kLastConnectedTimestampPref);
if (!timestamp || !timestamp->is_double()) {
return base::TimeDelta();
}
return base::TimeDelta::FromMillisecondsD(timestamp->GetDouble());
}
bool NetworkMetadataStore::GetIsConfiguredBySync(
const std::string& network_guid) {
const base::Value* is_from_sync = GetPref(network_guid, kIsFromSync);
if (!is_from_sync) {
return false;
}
return is_from_sync->GetBool();
}
bool NetworkMetadataStore::GetIsCreatedByUser(const std::string& network_guid) {
const base::Value* is_created_by_user =
GetPref(network_guid, kIsCreatedByUser);
if (!is_created_by_user) {
return false;
}
return is_created_by_user->GetBool();
}
void NetworkMetadataStore::SetPref(const std::string& network_guid,
const std::string& key,
base::Value value) {
const NetworkState* network =
network_state_handler_->GetNetworkStateFromGuid(network_guid);
if (!network)
return;
if (network->IsPrivate()) {
base::Value profile_dict =
profile_pref_service_->GetDictionary(kNetworkMetadataPref)->Clone();
profile_dict.SetPath(GetPath(network_guid, key), std::move(value));
profile_pref_service_->Set(kNetworkMetadataPref, profile_dict);
return;
}
base::Value device_dict =
device_pref_service_->GetDictionary(kNetworkMetadataPref)->Clone();
device_dict.SetPath(GetPath(network_guid, key), std::move(value));
device_pref_service_->Set(kNetworkMetadataPref, device_dict);
}
const base::Value* NetworkMetadataStore::GetPref(
const std::string& network_guid,
const std::string& key) {
if (!network_state_handler_) {
return nullptr;
}
const NetworkState* network =
network_state_handler_->GetNetworkStateFromGuid(network_guid);
if (!network) {
return nullptr;
}
if (network->IsPrivate()) {
const base::Value* profile_dict =
profile_pref_service_->GetDictionary(kNetworkMetadataPref);
return profile_dict->FindPath(GetPath(network_guid, key));
}
const base::Value* device_dict =
device_pref_service_->GetDictionary(kNetworkMetadataPref);
return device_dict->FindPath(GetPath(network_guid, key));
}
void NetworkMetadataStore::AddObserver(NetworkMetadataObserver* observer) {
observers_.AddObserver(observer);
}
void NetworkMetadataStore::RemoveObserver(NetworkMetadataObserver* observer) {
observers_.RemoveObserver(observer);
}
} // namespace chromeos