2561df8083
This stops the AP summary from getting stuck on "Connected, no Internet" even when the system has validated Internet access. Bug: 62209358 Test: make -j64 RunSettingsRoboTests Change-Id: I235404408f7d8b958653d25656d97da8206e35ce
479 lines
19 KiB
Java
479 lines
19 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.wifi.details;
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import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
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import static android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED;
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import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
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import android.app.Fragment;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.graphics.drawable.Drawable;
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import android.net.ConnectivityManager;
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import android.net.ConnectivityManager.NetworkCallback;
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import android.net.IpPrefix;
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import android.net.LinkAddress;
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import android.net.LinkProperties;
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import android.net.Network;
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import android.net.NetworkBadging;
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import android.net.NetworkCapabilities;
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import android.net.NetworkInfo;
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import android.net.NetworkRequest;
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import android.net.NetworkUtils;
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import android.net.RouteInfo;
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import android.net.wifi.WifiConfiguration;
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import android.net.wifi.WifiInfo;
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import android.net.wifi.WifiManager;
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import android.os.Handler;
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import android.support.v7.preference.Preference;
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import android.support.v7.preference.PreferenceCategory;
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import android.support.v7.preference.PreferenceScreen;
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import android.text.TextUtils;
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import android.util.Log;
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import android.view.View;
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import android.widget.Button;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.internal.logging.nano.MetricsProto;
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import com.android.settings.R;
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import com.android.settings.applications.LayoutPreference;
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import com.android.settings.core.PreferenceController;
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import com.android.settings.core.instrumentation.MetricsFeatureProvider;
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import com.android.settings.core.lifecycle.Lifecycle;
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import com.android.settings.core.lifecycle.LifecycleObserver;
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import com.android.settings.core.lifecycle.events.OnPause;
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import com.android.settings.core.lifecycle.events.OnResume;
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import com.android.settings.vpn2.ConnectivityManagerWrapper;
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import com.android.settings.wifi.WifiDetailPreference;
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import com.android.settingslib.wifi.AccessPoint;
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import java.net.Inet4Address;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.List;
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import java.util.StringJoiner;
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import java.util.stream.Collectors;
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/**
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* Controller for logic pertaining to displaying Wifi information for the
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* {@link WifiNetworkDetailsFragment}.
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*/
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public class WifiDetailPreferenceController extends PreferenceController implements
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LifecycleObserver, OnPause, OnResume {
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private static final String TAG = "WifiDetailsPrefCtrl";
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private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
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@VisibleForTesting
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static final String KEY_CONNECTION_DETAIL_PREF = "connection_detail";
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@VisibleForTesting
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static final String KEY_BUTTONS_PREF = "buttons";
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@VisibleForTesting
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static final String KEY_SIGNAL_STRENGTH_PREF = "signal_strength";
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@VisibleForTesting
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static final String KEY_LINK_SPEED = "link_speed";
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@VisibleForTesting
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static final String KEY_FREQUENCY_PREF = "frequency";
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@VisibleForTesting
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static final String KEY_SECURITY_PREF = "security";
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@VisibleForTesting
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static final String KEY_MAC_ADDRESS_PREF = "mac_address";
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@VisibleForTesting
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static final String KEY_IP_ADDRESS_PREF = "ip_address";
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@VisibleForTesting
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static final String KEY_GATEWAY_PREF = "gateway";
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@VisibleForTesting
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static final String KEY_SUBNET_MASK_PREF = "subnet_mask";
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@VisibleForTesting
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static final String KEY_DNS_PREF = "dns";
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@VisibleForTesting
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static final String KEY_IPV6_CATEGORY = "ipv6_category";
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@VisibleForTesting
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static final String KEY_IPV6_ADDRESSES_PREF = "ipv6_addresses";
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private AccessPoint mAccessPoint;
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private final ConnectivityManagerWrapper mConnectivityManagerWrapper;
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private final ConnectivityManager mConnectivityManager;
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private final Fragment mFragment;
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private final Handler mHandler;
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private LinkProperties mLinkProperties;
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private Network mNetwork;
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private NetworkInfo mNetworkInfo;
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private NetworkCapabilities mNetworkCapabilities;
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private Context mPrefContext;
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private int mRssi;
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private String[] mSignalStr;
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private final WifiConfiguration mWifiConfig;
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private WifiInfo mWifiInfo;
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private final WifiManager mWifiManager;
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private final MetricsFeatureProvider mMetricsFeatureProvider;
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// UI elements - in order of appearance
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private Preference mConnectionDetailPref;
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private LayoutPreference mButtonsPref;
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private Button mForgetButton;
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private Button mSignInButton;
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private WifiDetailPreference mSignalStrengthPref;
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private WifiDetailPreference mLinkSpeedPref;
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private WifiDetailPreference mFrequencyPref;
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private WifiDetailPreference mSecurityPref;
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private WifiDetailPreference mMacAddressPref;
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private WifiDetailPreference mIpAddressPref;
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private WifiDetailPreference mGatewayPref;
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private WifiDetailPreference mSubnetPref;
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private WifiDetailPreference mDnsPref;
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private PreferenceCategory mIpv6Category;
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private Preference mIpv6AddressPref;
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private final IntentFilter mFilter;
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private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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switch (intent.getAction()) {
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case WifiManager.NETWORK_STATE_CHANGED_ACTION:
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case WifiManager.RSSI_CHANGED_ACTION:
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updateInfo();
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}
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}
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};
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private final NetworkRequest mNetworkRequest = new NetworkRequest.Builder()
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.clearCapabilities().addTransportType(TRANSPORT_WIFI).build();
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// Must be run on the UI thread since it directly manipulates UI state.
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private final NetworkCallback mNetworkCallback = new NetworkCallback() {
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@Override
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public void onLinkPropertiesChanged(Network network, LinkProperties lp) {
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if (network.equals(mNetwork) && !lp.equals(mLinkProperties)) {
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mLinkProperties = lp;
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updateIpLayerInfo();
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}
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}
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private boolean hasCapabilityChanged(NetworkCapabilities nc, int cap) {
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// If this is the first time we get NetworkCapabilities, report that something changed.
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if (mNetworkCapabilities == null) return true;
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// nc can never be null, see ConnectivityService#callCallbackForRequest.
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return mNetworkCapabilities.hasCapability(cap) != nc.hasCapability(cap);
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}
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@Override
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public void onCapabilitiesChanged(Network network, NetworkCapabilities nc) {
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// If the network just validated or lost Internet access, refresh network state.
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// Don't do this on every NetworkCapabilities change because refreshNetworkState
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// sends IPCs to the system server from the UI thread, which can cause jank.
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if (network.equals(mNetwork) && !nc.equals(mNetworkCapabilities)) {
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if (hasCapabilityChanged(nc, NET_CAPABILITY_VALIDATED) ||
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hasCapabilityChanged(nc, NET_CAPABILITY_CAPTIVE_PORTAL)) {
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refreshNetworkState();
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}
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mNetworkCapabilities = nc;
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updateIpLayerInfo();
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}
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}
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@Override
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public void onLost(Network network) {
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if (network.equals(mNetwork)) {
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exitActivity();
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}
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}
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};
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public WifiDetailPreferenceController(
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AccessPoint accessPoint,
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ConnectivityManagerWrapper connectivityManagerWrapper,
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Context context,
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Fragment fragment,
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Handler handler,
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Lifecycle lifecycle,
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WifiManager wifiManager,
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MetricsFeatureProvider metricsFeatureProvider) {
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super(context);
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mAccessPoint = accessPoint;
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mConnectivityManager = connectivityManagerWrapper.getConnectivityManager();
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mConnectivityManagerWrapper = connectivityManagerWrapper;
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mFragment = fragment;
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mHandler = handler;
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mSignalStr = context.getResources().getStringArray(R.array.wifi_signal);
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mWifiConfig = accessPoint.getConfig();
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mWifiManager = wifiManager;
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mMetricsFeatureProvider = metricsFeatureProvider;
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mFilter = new IntentFilter();
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mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
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mFilter.addAction(WifiManager.RSSI_CHANGED_ACTION);
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lifecycle.addObserver(this);
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}
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@Override
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public boolean isAvailable() {
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return true;
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}
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@Override
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public String getPreferenceKey() {
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// Returns null since this controller contains more than one Preference
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return null;
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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mPrefContext = screen.getPreferenceManager().getContext();
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mConnectionDetailPref = screen.findPreference(KEY_CONNECTION_DETAIL_PREF);
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mButtonsPref = (LayoutPreference) screen.findPreference(KEY_BUTTONS_PREF);
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mSignInButton = (Button) mButtonsPref.findViewById(R.id.signin_button);
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mSignInButton.setText(R.string.support_sign_in_button_text);
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mSignInButton.setOnClickListener(
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view -> mConnectivityManagerWrapper.startCaptivePortalApp(mNetwork));
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mSignalStrengthPref =
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(WifiDetailPreference) screen.findPreference(KEY_SIGNAL_STRENGTH_PREF);
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mLinkSpeedPref = (WifiDetailPreference) screen.findPreference(KEY_LINK_SPEED);
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mFrequencyPref = (WifiDetailPreference) screen.findPreference(KEY_FREQUENCY_PREF);
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mSecurityPref = (WifiDetailPreference) screen.findPreference(KEY_SECURITY_PREF);
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mMacAddressPref = (WifiDetailPreference) screen.findPreference(KEY_MAC_ADDRESS_PREF);
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mIpAddressPref = (WifiDetailPreference) screen.findPreference(KEY_IP_ADDRESS_PREF);
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mGatewayPref = (WifiDetailPreference) screen.findPreference(KEY_GATEWAY_PREF);
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mSubnetPref = (WifiDetailPreference) screen.findPreference(KEY_SUBNET_MASK_PREF);
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mDnsPref = (WifiDetailPreference) screen.findPreference(KEY_DNS_PREF);
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mIpv6Category = (PreferenceCategory) screen.findPreference(KEY_IPV6_CATEGORY);
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mIpv6AddressPref = (Preference) screen.findPreference(KEY_IPV6_ADDRESSES_PREF);
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mSecurityPref.setDetailText(mAccessPoint.getSecurityString(false /* concise */));
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mForgetButton = (Button) mButtonsPref.findViewById(R.id.forget_button);
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mForgetButton.setText(R.string.forget);
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mForgetButton.setOnClickListener(view -> forgetNetwork());
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updateInfo();
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}
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@Override
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public void onResume() {
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mConnectivityManagerWrapper.registerNetworkCallback(mNetworkRequest, mNetworkCallback,
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mHandler);
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// updateInfo() will be called during registration because NETWORK_STATE_CHANGED_ACTION is
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// a sticky broadcast.
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mContext.registerReceiver(mReceiver, mFilter);
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}
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@Override
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public void onPause() {
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mNetwork = null;
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mLinkProperties = null;
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mNetworkCapabilities = null;
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mNetworkInfo = null;
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mWifiInfo = null;
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mContext.unregisterReceiver(mReceiver);
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mConnectivityManager.unregisterNetworkCallback(mNetworkCallback);
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}
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private void updateInfo() {
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mNetwork = mWifiManager.getCurrentNetwork();
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mLinkProperties = mConnectivityManager.getLinkProperties(mNetwork);
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mNetworkCapabilities = mConnectivityManager.getNetworkCapabilities(mNetwork);
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mNetworkInfo = mConnectivityManager.getNetworkInfo(mNetwork);
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mWifiInfo = mWifiManager.getConnectionInfo();
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if (mNetwork == null || mNetworkInfo == null || mWifiInfo == null) {
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exitActivity();
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return;
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}
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// Update whether the forgot button should be displayed.
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mForgetButton.setVisibility(canForgetNetwork() ? View.VISIBLE : View.INVISIBLE);
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refreshNetworkState();
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// Update Connection Header icon and Signal Strength Preference
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mRssi = mWifiInfo.getRssi();
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refreshRssiViews();
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// MAC Address Pref
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mMacAddressPref.setDetailText(mWifiInfo.getMacAddress());
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// Link Speed Pref
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int linkSpeedMbps = mWifiInfo.getLinkSpeed();
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mLinkSpeedPref.setVisible(linkSpeedMbps >= 0);
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mLinkSpeedPref.setDetailText(mContext.getString(
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R.string.link_speed, mWifiInfo.getLinkSpeed()));
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// Frequency Pref
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final int frequency = mWifiInfo.getFrequency();
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String band = null;
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if (frequency >= AccessPoint.LOWER_FREQ_24GHZ
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&& frequency < AccessPoint.HIGHER_FREQ_24GHZ) {
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band = mContext.getResources().getString(R.string.wifi_band_24ghz);
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} else if (frequency >= AccessPoint.LOWER_FREQ_5GHZ
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&& frequency < AccessPoint.HIGHER_FREQ_5GHZ) {
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band = mContext.getResources().getString(R.string.wifi_band_5ghz);
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} else {
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Log.e(TAG, "Unexpected frequency " + frequency);
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}
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mFrequencyPref.setDetailText(band);
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updateIpLayerInfo();
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}
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private void exitActivity() {
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if (DEBUG) {
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Log.d(TAG, "Exiting the WifiNetworkDetailsPage");
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}
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mFragment.getActivity().finish();
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}
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private void refreshNetworkState() {
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mAccessPoint.update(mWifiConfig, mWifiInfo, mNetworkInfo);
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mConnectionDetailPref.setTitle(mAccessPoint.getSettingsSummary());
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}
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private void refreshRssiViews() {
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int iconSignalLevel = WifiManager.calculateSignalLevel(
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mRssi, WifiManager.RSSI_LEVELS);
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Drawable wifiIcon = NetworkBadging.getWifiIcon(
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iconSignalLevel, NetworkBadging.BADGING_NONE, mContext.getTheme()).mutate();
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mConnectionDetailPref.setIcon(wifiIcon);
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Drawable wifiIconDark = wifiIcon.getConstantState().newDrawable().mutate();
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wifiIconDark.setTint(mContext.getResources().getColor(
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R.color.wifi_details_icon_color, mContext.getTheme()));
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mSignalStrengthPref.setIcon(wifiIconDark);
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int summarySignalLevel = mAccessPoint.getLevel();
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mSignalStrengthPref.setDetailText(mSignalStr[summarySignalLevel]);
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}
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private void updatePreference(WifiDetailPreference pref, String detailText) {
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if (!TextUtils.isEmpty(detailText)) {
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pref.setDetailText(detailText);
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pref.setVisible(true);
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} else {
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pref.setVisible(false);
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}
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}
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private void updateIpLayerInfo() {
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mSignInButton.setVisibility(canSignIntoNetwork() ? View.VISIBLE : View.INVISIBLE);
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mButtonsPref.setVisible(mForgetButton.getVisibility() == View.VISIBLE
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|| mSignInButton.getVisibility() == View.VISIBLE);
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if (mNetwork == null || mLinkProperties == null) {
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mIpAddressPref.setVisible(false);
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mSubnetPref.setVisible(false);
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mGatewayPref.setVisible(false);
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mDnsPref.setVisible(false);
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mIpv6Category.setVisible(false);
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return;
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}
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// Find IPv4 and IPv6 addresses.
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String ipv4Address = null;
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String subnet = null;
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StringJoiner ipv6Addresses = new StringJoiner("\n");
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for (LinkAddress addr : mLinkProperties.getLinkAddresses()) {
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if (addr.getAddress() instanceof Inet4Address) {
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ipv4Address = addr.getAddress().getHostAddress();
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subnet = ipv4PrefixLengthToSubnetMask(addr.getPrefixLength());
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} else if (addr.getAddress() instanceof Inet6Address) {
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ipv6Addresses.add(addr.getAddress().getHostAddress());
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}
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}
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// Find IPv4 default gateway.
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String gateway = null;
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for (RouteInfo routeInfo : mLinkProperties.getRoutes()) {
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if (routeInfo.isIPv4Default() && routeInfo.hasGateway()) {
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gateway = routeInfo.getGateway().getHostAddress();
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break;
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}
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}
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// Find IPv4 DNS addresses.
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String dnsServers = mLinkProperties.getDnsServers().stream()
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.filter(Inet4Address.class::isInstance)
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.map(InetAddress::getHostAddress)
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.collect(Collectors.joining(","));
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// Update UI.
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updatePreference(mIpAddressPref, ipv4Address);
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updatePreference(mSubnetPref, subnet);
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updatePreference(mGatewayPref, gateway);
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updatePreference(mDnsPref, dnsServers);
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if (ipv6Addresses.length() > 0) {
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mIpv6AddressPref.setSummary(ipv6Addresses.toString());
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mIpv6Category.setVisible(true);
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} else {
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mIpv6Category.setVisible(false);
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}
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}
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private static String ipv4PrefixLengthToSubnetMask(int prefixLength) {
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try {
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InetAddress all = InetAddress.getByAddress(
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new byte[]{(byte) 255, (byte) 255, (byte) 255, (byte) 255});
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return NetworkUtils.getNetworkPart(all, prefixLength).getHostAddress();
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} catch (UnknownHostException e) {
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return null;
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}
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}
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/**
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* Returns whether the network represented by this preference can be forgotten.
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*/
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private boolean canForgetNetwork() {
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return mWifiInfo != null && mWifiInfo.isEphemeral() || mWifiConfig != null;
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}
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/**
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* Returns whether the user can sign into the network represented by this preference.
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*/
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private boolean canSignIntoNetwork() {
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return mNetworkCapabilities != null && mNetworkCapabilities.hasCapability(
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NET_CAPABILITY_CAPTIVE_PORTAL);
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}
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/**
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* Forgets the wifi network associated with this preference.
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*/
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private void forgetNetwork() {
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if (mWifiInfo != null && mWifiInfo.isEphemeral()) {
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mWifiManager.disableEphemeralNetwork(mWifiInfo.getSSID());
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} else if (mWifiConfig != null) {
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if (mWifiConfig.isPasspoint()) {
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mWifiManager.removePasspointConfiguration(mWifiConfig.FQDN);
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} else {
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mWifiManager.forget(mWifiConfig.networkId, null /* action listener */);
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}
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}
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mMetricsFeatureProvider.action(
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mFragment.getActivity(), MetricsProto.MetricsEvent.ACTION_WIFI_FORGET);
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mFragment.getActivity().finish();
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}
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}
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