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/*
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.wifitrackerlib;
import static com.android.wifitrackerlib.HotspotNetworkEntry.HotspotNetworkEntryKey;
import android.annotation.TargetApi;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.wifi.WifiManager;
import android.net.wifi.sharedconnectivity.app.HotspotNetwork;
import android.os.Build;
import android.os.Handler;
import android.telephony.SubscriptionManager;
import android.util.Log;
import androidx.annotation.AnyThread;
import androidx.annotation.NonNull;
import androidx.annotation.VisibleForTesting;
import androidx.annotation.WorkerThread;
import androidx.lifecycle.Lifecycle;
import java.time.Clock;
import java.util.List;
/**
* Implementation of NetworkDetailsTracker that tracks a single HotspotNetworkEntry.
*/
@TargetApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
public class HotspotNetworkDetailsTracker extends NetworkDetailsTracker {
private static final String TAG = "HotspotNetworkDetailsTracker";
private final HotspotNetworkEntry mChosenEntry;
private HotspotNetwork mHotspotNetworkData;
public HotspotNetworkDetailsTracker(
@NonNull Lifecycle lifecycle,
@NonNull Context context,
@NonNull WifiManager wifiManager,
@NonNull ConnectivityManager connectivityManager,
@NonNull Handler mainHandler,
@NonNull Handler workerHandler,
@NonNull Clock clock,
long maxScanAgeMillis,
long scanIntervalMillis,
String key) {
this(new WifiTrackerInjector(context), lifecycle, context, wifiManager, connectivityManager,
mainHandler, workerHandler, clock, maxScanAgeMillis, scanIntervalMillis, key);
}
@VisibleForTesting
HotspotNetworkDetailsTracker(
@NonNull WifiTrackerInjector injector,
@NonNull Lifecycle lifecycle,
@NonNull Context context,
@NonNull WifiManager wifiManager,
@NonNull ConnectivityManager connectivityManager,
@NonNull Handler mainHandler,
@NonNull Handler workerHandler,
@NonNull Clock clock,
long maxScanAgeMillis,
long scanIntervalMillis,
String key) {
super(injector, lifecycle, context, wifiManager, connectivityManager,
mainHandler, workerHandler, clock, maxScanAgeMillis, scanIntervalMillis, TAG);
Log.v(TAG, "key: " + key);
HotspotNetworkEntryKey entryKey = new HotspotNetworkEntryKey(key);
if (entryKey.isVirtualEntry()) {
Log.e(TAG, "Network details not relevant for virtual entry");
}
mChosenEntry = new HotspotNetworkEntry(mInjector, mContext, mMainHandler, mWifiManager,
mSharedConnectivityManager, entryKey);
// It is safe to call updateStartInfo() in the main thread here since onStart() won't have
// a chance to post handleOnStart() on the worker thread until the main thread finishes
// calling this constructor.
updateStartInfo();
Log.v(TAG, "mChosenEntry: " + mChosenEntry);
}
@AnyThread
@Override
@NonNull
public WifiEntry getWifiEntry() {
return mChosenEntry;
}
@WorkerThread
@Override
protected void handleOnStart() {
updateStartInfo();
}
@WorkerThread
@Override
protected void handleServiceConnected() {
if (mInjector.isSharedConnectivityFeatureEnabled() && mSharedConnectivityManager != null) {
mHotspotNetworkData = mSharedConnectivityManager.getHotspotNetworks().stream().filter(
network -> network.getDeviceId() == mChosenEntry.getHotspotNetworkEntryKey()
.getDeviceId()).findFirst().orElse(null);
}
if (mHotspotNetworkData == null) {
throw new IllegalArgumentException(
"Cannot find data for given HotspotNetworkEntry key!");
}
mChosenEntry.updateHotspotNetworkData(mHotspotNetworkData);
}
@WorkerThread
@Override
protected void handleHotspotNetworksUpdated(List<HotspotNetwork> networks) {
if (mInjector.isSharedConnectivityFeatureEnabled()) {
mHotspotNetworkData = networks.stream().filter(network -> network.getDeviceId()
== mChosenEntry.getHotspotNetworkEntryKey().getDeviceId()).findFirst().orElse(
null);
}
if (mHotspotNetworkData == null) {
throw new IllegalArgumentException(
"Cannot find data for given HotspotNetworkEntry key!");
}
mChosenEntry.updateHotspotNetworkData(mHotspotNetworkData);
}
@WorkerThread
private void updateStartInfo() {
handleDefaultSubscriptionChanged(SubscriptionManager.getDefaultDataSubscriptionId());
Network currentNetwork = mWifiManager.getCurrentNetwork();
if (currentNetwork == null) return;
NetworkCapabilities networkCapabilities =
mConnectivityManager.getNetworkCapabilities(currentNetwork);
if (networkCapabilities != null) {
// getNetworkCapabilities(Network) obfuscates location info such as SSID and
// networkId, so we need to set the WifiInfo directly from WifiManager.
handleNetworkCapabilitiesChanged(currentNetwork,
new NetworkCapabilities.Builder(networkCapabilities)
.setTransportInfo(mWifiManager.getConnectionInfo())
.build());
}
LinkProperties linkProperties = mConnectivityManager.getLinkProperties(currentNetwork);
if (linkProperties != null) {
handleLinkPropertiesChanged(currentNetwork, linkProperties);
}
}
}
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