| /* |
| * Copyright (C) 2018 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.settings.wifi.details; |
| |
| import android.content.Context; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiInfo; |
| import android.net.wifi.WifiManager; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.DropDownPreference; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.BasePreferenceController; |
| import com.android.settings.wifi.WifiDialog; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| |
| /** |
| * {@link AbstractPreferenceController} that controls whether the wifi network is mac randomized |
| * or not. |
| * |
| * Migrating from Wi-Fi SettingsLib to to WifiTrackerLib, this object will be removed in the near |
| * future, please develop in |
| * {@link com.android.settings.wifi.details2.WifiPrivacyPreferenceController2}. |
| */ |
| public class WifiPrivacyPreferenceController extends BasePreferenceController implements |
| Preference.OnPreferenceChangeListener, WifiDialog.WifiDialogListener { |
| |
| private static final String KEY_WIFI_PRIVACY = "privacy"; |
| private WifiConfiguration mWifiConfiguration; |
| private WifiManager mWifiManager; |
| private boolean mIsEphemeral = false; |
| private boolean mIsPasspoint = false; |
| private Preference mPreference; |
| |
| public WifiPrivacyPreferenceController(Context context) { |
| super(context, KEY_WIFI_PRIVACY); |
| mWifiConfiguration = null; |
| mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); |
| } |
| |
| public void setWifiConfiguration(WifiConfiguration wifiConfiguration) { |
| mWifiConfiguration = wifiConfiguration; |
| } |
| |
| public void setIsEphemeral(boolean isEphemeral) { |
| mIsEphemeral = isEphemeral; |
| } |
| |
| public void setIsPasspoint(boolean isPasspoint) { |
| mIsPasspoint = isPasspoint; |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| return mWifiManager.isConnectedMacRandomizationSupported() |
| ? AVAILABLE : CONDITIONALLY_UNAVAILABLE; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| final DropDownPreference dropDownPreference = (DropDownPreference) preference; |
| final int randomizationLevel = getRandomizationValue(); |
| dropDownPreference.setValue(Integer.toString(randomizationLevel)); |
| updateSummary(dropDownPreference, randomizationLevel); |
| |
| // Makes preference not selectable, when this is a ephemeral network. |
| if (mIsEphemeral || mIsPasspoint) { |
| preference.setSelectable(false); |
| dropDownPreference.setSummary(R.string.wifi_privacy_settings_ephemeral_summary); |
| } |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| if (mWifiConfiguration != null) { |
| mWifiConfiguration.macRandomizationSetting = Integer.parseInt((String) newValue); |
| mWifiManager.updateNetwork(mWifiConfiguration); |
| |
| // To activate changing, we need to reconnect network. WiFi will auto connect to |
| // current network after disconnect(). Only needed when this is connected network. |
| final WifiInfo wifiInfo = mWifiManager.getConnectionInfo(); |
| if (wifiInfo != null && wifiInfo.getNetworkId() == mWifiConfiguration.networkId) { |
| mWifiManager.disconnect(); |
| } |
| } |
| updateSummary((DropDownPreference) preference, Integer.parseInt((String) newValue)); |
| return true; |
| } |
| |
| @VisibleForTesting |
| int getRandomizationValue() { |
| if (mWifiConfiguration != null) { |
| return mWifiConfiguration.macRandomizationSetting; |
| } |
| return WifiConfiguration.RANDOMIZATION_PERSISTENT; |
| } |
| |
| private static final int PREF_RANDOMIZATION_PERSISTENT = 0; |
| private static final int PREF_RANDOMIZATION_NONE = 1; |
| |
| /** |
| * Returns preference index value. |
| * |
| * @param macRandomized is mac randomized value |
| * @return index value of preference |
| */ |
| public static int translateMacRandomizedValueToPrefValue(int macRandomized) { |
| return (macRandomized == WifiConfiguration.RANDOMIZATION_PERSISTENT) |
| ? PREF_RANDOMIZATION_PERSISTENT : PREF_RANDOMIZATION_NONE; |
| } |
| |
| /** |
| * Returns mac randomized value. |
| * |
| * @param prefMacRandomized is preference index value |
| * @return mac randomized value |
| */ |
| public static int translatePrefValueToMacRandomizedValue(int prefMacRandomized) { |
| return (prefMacRandomized == PREF_RANDOMIZATION_PERSISTENT) |
| ? WifiConfiguration.RANDOMIZATION_PERSISTENT : WifiConfiguration.RANDOMIZATION_NONE; |
| } |
| |
| private void updateSummary(DropDownPreference preference, int macRandomized) { |
| // Translates value here to set RANDOMIZATION_PERSISTENT as first item in UI for better UX. |
| final int prefMacRandomized = translateMacRandomizedValueToPrefValue(macRandomized); |
| preference.setSummary(preference.getEntries()[prefMacRandomized]); |
| } |
| |
| @Override |
| public void onSubmit(WifiDialog dialog) { |
| if (dialog.getController() != null) { |
| final WifiConfiguration newConfig = dialog.getController().getConfig(); |
| if (newConfig == null || mWifiConfiguration == null) { |
| return; |
| } |
| |
| if (newConfig.macRandomizationSetting != mWifiConfiguration.macRandomizationSetting) { |
| mWifiConfiguration = newConfig; |
| onPreferenceChange(mPreference, String.valueOf(newConfig.macRandomizationSetting)); |
| } |
| } |
| } |
| } |