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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/arc/net/arc_net_host_impl.h"
#include <string>
#include <vector>
#include "base/location.h"
#include "base/logging.h"
#include "base/posix/eintr_wrapper.h"
#include "base/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "chromeos/network/network_handler.h"
#include "chromeos/network/network_state_handler.h"
#include "chromeos/network/network_type_pattern.h"
#include "chromeos/network/network_util.h"
#include "chromeos/network/onc/onc_utils.h"
#include "components/arc/arc_bridge_service.h"
namespace {
const int kGetNetworksListLimit = 100;
} // namespace
namespace arc {
chromeos::NetworkStateHandler* GetStateHandler() {
return chromeos::NetworkHandler::Get()->network_state_handler();
}
ArcNetHostImpl::ArcNetHostImpl(ArcBridgeService* bridge_service)
: ArcService(bridge_service), binding_(this) {
arc_bridge_service()->AddObserver(this);
GetStateHandler()->AddObserver(this, FROM_HERE);
}
ArcNetHostImpl::~ArcNetHostImpl() {
DCHECK(thread_checker_.CalledOnValidThread());
arc_bridge_service()->RemoveObserver(this);
if (chromeos::NetworkHandler::IsInitialized()) {
GetStateHandler()->RemoveObserver(this, FROM_HERE);
}
}
void ArcNetHostImpl::OnNetInstanceReady() {
DCHECK(thread_checker_.CalledOnValidThread());
NetHostPtr host;
binding_.Bind(GetProxy(&host));
arc_bridge_service()->net_instance()->Init(std::move(host));
}
void ArcNetHostImpl::GetNetworksDeprecated(
bool configured_only,
bool visible_only,
const GetNetworksDeprecatedCallback& callback) {
DCHECK(thread_checker_.CalledOnValidThread());
if (configured_only && visible_only) {
VLOG(1) << "Illegal arguments - both configured and visible networks "
"requested.";
return;
}
GetNetworksRequestType type = GetNetworksRequestType::CONFIGURED_ONLY;
if (visible_only) {
type = GetNetworksRequestType::VISIBLE_ONLY;
}
GetNetworks(type, callback);
}
void ArcNetHostImpl::GetNetworks(GetNetworksRequestType type,
const GetNetworksCallback& callback) {
DCHECK(thread_checker_.CalledOnValidThread());
NetworkDataPtr data = NetworkData::New();
bool configured_only = true;
bool visible_only = false;
if (type == GetNetworksRequestType::VISIBLE_ONLY) {
configured_only = false;
visible_only = true;
}
// Retrieve list of nearby wifi networks
chromeos::NetworkTypePattern network_pattern =
chromeos::onc::NetworkTypePatternFromOncType(onc::network_type::kWiFi);
scoped_ptr<base::ListValue> network_properties_list =
chromeos::network_util::TranslateNetworkListToONC(
network_pattern, configured_only, visible_only,
kGetNetworksListLimit);
// Extract info for each network and add it to the list.
// Even if there's no WiFi, an empty (size=0) list must be returned and not a
// null one. The explicitly sized New() constructor ensures the non-null
// property.
mojo::Array<WifiConfigurationPtr> networks =
mojo::Array<WifiConfigurationPtr>::New(0);
for (base::Value* value : *network_properties_list) {
WifiConfigurationPtr wc = WifiConfiguration::New();
base::DictionaryValue* network_dict = nullptr;
value->GetAsDictionary(&network_dict);
DCHECK(network_dict);
// kName is a post-processed version of kHexSSID.
std::string tmp;
network_dict->GetString(onc::network_config::kName, &tmp);
DCHECK(!tmp.empty());
wc->ssid = tmp;
tmp.clear();
network_dict->GetString(onc::network_config::kGUID, &tmp);
DCHECK(!tmp.empty());
wc->guid = tmp;
base::DictionaryValue* wifi_dict = nullptr;
network_dict->GetDictionary(onc::network_config::kWiFi, &wifi_dict);
DCHECK(wifi_dict);
if (!wifi_dict->GetInteger(onc::wifi::kFrequency, &wc->frequency))
wc->frequency = 0;
if (!wifi_dict->GetInteger(onc::wifi::kSignalStrength,
&wc->signal_strength))
wc->signal_strength = 0;
if (!wifi_dict->GetString(onc::wifi::kSecurity, &tmp))
NOTREACHED();
DCHECK(!tmp.empty());
wc->security = tmp;
if (!wifi_dict->GetString(onc::wifi::kBSSID, &tmp))
NOTREACHED();
DCHECK(!tmp.empty());
wc->bssid = tmp;
networks.push_back(std::move(wc));
}
data->networks = std::move(networks);
callback.Run(std::move(data));
}
void ArcNetHostImpl::GetWifiEnabledState(
const GetWifiEnabledStateCallback& callback) {
bool is_enabled = GetStateHandler()->IsTechnologyEnabled(
chromeos::NetworkTypePattern::WiFi());
callback.Run(is_enabled);
}
void ArcNetHostImpl::SetWifiEnabledState(
bool is_enabled,
const SetWifiEnabledStateCallback& callback) {
DCHECK(thread_checker_.CalledOnValidThread());
chromeos::NetworkStateHandler::TechnologyState state =
GetStateHandler()->GetTechnologyState(
chromeos::NetworkTypePattern::WiFi());
// WiFi can't be enabled or disabled in these states.
if ((state == chromeos::NetworkStateHandler::TECHNOLOGY_PROHIBITED) ||
(state == chromeos::NetworkStateHandler::TECHNOLOGY_UNINITIALIZED) ||
(state == chromeos::NetworkStateHandler::TECHNOLOGY_UNAVAILABLE)) {
VLOG(1) << "SetWifiEnabledState failed due to WiFi state: " << state;
callback.Run(false);
} else {
GetStateHandler()->SetTechnologyEnabled(
chromeos::NetworkTypePattern::WiFi(), is_enabled,
chromeos::network_handler::ErrorCallback());
callback.Run(true);
}
}
void ArcNetHostImpl::StartScan() {
GetStateHandler()->RequestScan();
}
void ArcNetHostImpl::ScanCompleted(const chromeos::DeviceState* /*unused*/) {
if (arc_bridge_service()->net_version() < 1) {
VLOG(1) << "ArcBridgeService does not support ScanCompleted.";
return;
}
arc_bridge_service()->net_instance()->ScanCompleted();
}
void ArcNetHostImpl::OnShuttingDown() {
GetStateHandler()->RemoveObserver(this, FROM_HERE);
}
} // namespace arc
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