8474a9c877
This allows the WifiNetworkDetailsFragment to update dynamically based on network and connection changes. Bug: b/36278407 Test: make RunSettingsRoboTests Change-Id: I388cf9842a144e45b68f2d173c7b29f347226b78
380 lines
14 KiB
Java
380 lines
14 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 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.IpPrefix;
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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.NetworkInfo;
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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.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 com.android.internal.annotations.VisibleForTesting;
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import com.android.settings.R;
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import com.android.settings.core.PreferenceController;
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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.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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/**
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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_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_ADDRESS_CATEGORY = "ipv6_details_category";
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private AccessPoint mAccessPoint;
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private final ConnectivityManager mConnectivityManager;
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private final Fragment mFragment;
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private NetworkInfo mNetworkInfo;
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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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// Preferences - in order of appearance
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private Preference mConnectionDetailPref;
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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 mIpv6AddressCategory;
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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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public WifiDetailPreferenceController(
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AccessPoint accessPoint,
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ConnectivityManager connectivityManager,
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Context context,
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Fragment fragment,
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Lifecycle lifecycle,
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WifiManager wifiManager) {
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super(context);
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mAccessPoint = accessPoint;
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mConnectivityManager = connectivityManager;
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mFragment = fragment;
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mNetworkInfo = accessPoint.getNetworkInfo();
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mRssi = accessPoint.getRssi();
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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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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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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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mIpv6AddressCategory =
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(PreferenceCategory) screen.findPreference(KEY_IPV6_ADDRESS_CATEGORY);
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mSecurityPref.setDetailText(mAccessPoint.getSecurityString(false /* concise */));
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}
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public WifiInfo getWifiInfo() {
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return mWifiInfo;
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}
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@Override
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public void onResume() {
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updateInfo();
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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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mContext.unregisterReceiver(mReceiver);
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}
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private void updateInfo() {
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mNetworkInfo = mConnectivityManager.getNetworkInfo(mWifiManager.getCurrentNetwork());
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mWifiInfo = mWifiManager.getConnectionInfo();
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if (mNetworkInfo == null || mWifiInfo == null) {
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exitActivity();
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return;
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}
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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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setIpText();
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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 setIpText() {
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// Reset all fields
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mIpv6AddressCategory.removeAll();
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mIpv6AddressCategory.setVisible(false);
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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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Network currentNetwork = mWifiManager.getCurrentNetwork();
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if (currentNetwork == null) {
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return;
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}
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LinkProperties linkProperties = mConnectivityManager.getLinkProperties(currentNetwork);
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if (linkProperties == null) {
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return;
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}
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List<InetAddress> addresses = linkProperties.getAddresses();
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// Set IPv4 and Ipv6 addresses
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for (int i = 0; i < addresses.size(); i++) {
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InetAddress addr = addresses.get(i);
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if (addr instanceof Inet4Address) {
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mIpAddressPref.setDetailText(addr.getHostAddress());
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mIpAddressPref.setVisible(true);
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} else if (addr instanceof Inet6Address) {
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String ip = addr.getHostAddress();
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Preference pref = new Preference(mPrefContext);
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pref.setKey(ip);
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pref.setTitle(ip);
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mIpv6AddressCategory.addPreference(pref);
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mIpv6AddressCategory.setVisible(true);
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}
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}
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// Set up IPv4 gateway and subnet mask
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String gateway = null;
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String subnet = null;
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for (RouteInfo routeInfo : linkProperties.getRoutes()) {
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if (routeInfo.hasGateway() && routeInfo.getGateway() instanceof Inet4Address) {
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gateway = routeInfo.getGateway().getHostAddress();
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}
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IpPrefix ipPrefix = routeInfo.getDestination();
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if (ipPrefix != null && ipPrefix.getAddress() instanceof Inet4Address
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&& ipPrefix.getPrefixLength() > 0) {
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subnet = ipv4PrefixLengthToSubnetMask(ipPrefix.getPrefixLength());
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}
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}
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if (!TextUtils.isEmpty(subnet)) {
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mSubnetPref.setDetailText(subnet);
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mSubnetPref.setVisible(true);
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}
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if (!TextUtils.isEmpty(gateway)) {
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mGatewayPref.setDetailText(gateway);
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mGatewayPref.setVisible(true);
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}
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// Set IPv4 DNS addresses
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StringJoiner stringJoiner = new StringJoiner(",");
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for (InetAddress dnsServer : linkProperties.getDnsServers()) {
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if (dnsServer instanceof Inet4Address) {
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stringJoiner.add(dnsServer.getHostAddress());
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}
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}
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String dnsText = stringJoiner.toString();
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if (!dnsText.isEmpty()) {
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mDnsPref.setDetailText(dnsText);
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mDnsPref.setVisible(true);
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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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public 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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* Forgets the wifi network associated with this preference.
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*/
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public 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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mFragment.getActivity().finish();
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}
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}
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