Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.wifi; |
| 18 | |
| 19 | import android.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 21 | import android.content.Context; |
Roshan Pius | 3225f11 | 2020-02-24 09:12:04 -0800 | [diff] [blame] | 22 | import android.net.wifi.WifiMigration; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 23 | import android.os.Handler; |
| 24 | import android.text.TextUtils; |
| 25 | import android.util.Log; |
| 26 | |
| 27 | import com.android.internal.annotations.GuardedBy; |
Roshan Pius | b0ed8e2 | 2020-03-19 09:08:16 -0700 | [diff] [blame] | 28 | import com.android.server.wifi.util.SettingsMigrationDataHolder; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 29 | import com.android.server.wifi.util.WifiConfigStoreEncryptionUtil; |
| 30 | import com.android.server.wifi.util.XmlUtil; |
| 31 | |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 32 | import org.xmlpull.v1.XmlPullParser; |
| 33 | import org.xmlpull.v1.XmlPullParserException; |
| 34 | import org.xmlpull.v1.XmlSerializer; |
| 35 | |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 36 | import java.io.FileDescriptor; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 37 | import java.io.IOException; |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 38 | import java.io.PrintWriter; |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 39 | import java.util.ArrayList; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 40 | import java.util.HashMap; |
| 41 | import java.util.Map; |
| 42 | |
| 43 | /** |
| 44 | * Store data for storing wifi settings. These are key (string) / value pairs that are stored in |
| 45 | * WifiConfigStore.xml file in a separate section. |
| 46 | */ |
| 47 | public class WifiSettingsConfigStore { |
| 48 | private static final String TAG = "WifiSettingsConfigStore"; |
| 49 | |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 50 | // List of all allowed keys. |
| 51 | private static final ArrayList<Key> sKeys = new ArrayList<>(); |
| 52 | |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 53 | /******** Wifi shared pref keys ***************/ |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 54 | /** |
| 55 | * Indicate whether factory reset request is pending. |
| 56 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 57 | public static final Key<Boolean> WIFI_P2P_PENDING_FACTORY_RESET = |
| 58 | new Key<>("wifi_p2p_pending_factory_reset", false); |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 59 | |
| 60 | /** |
| 61 | * Allow scans to be enabled even wifi is turned off. |
| 62 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 63 | public static final Key<Boolean> WIFI_SCAN_ALWAYS_AVAILABLE = |
| 64 | new Key<>("wifi_scan_always_enabled", false); |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 65 | |
| 66 | /** |
| 67 | * Whether wifi scan throttle is enabled or not. |
| 68 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 69 | public static final Key<Boolean> WIFI_SCAN_THROTTLE_ENABLED = |
| 70 | new Key<>("wifi_scan_throttle_enabled", true); |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 71 | |
| 72 | /** |
| 73 | * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1 |
| 74 | * will enable it. In the future, additional values may be supported. |
| 75 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 76 | public static final Key<Boolean> WIFI_VERBOSE_LOGGING_ENABLED = |
| 77 | new Key<>("wifi_verbose_logging_enabled", false); |
| 78 | |
| 79 | /** |
| 80 | * The Wi-Fi peer-to-peer device name |
| 81 | */ |
| 82 | public static final Key<String> WIFI_P2P_DEVICE_NAME = |
| 83 | new Key<>("wifi_p2p_device_name", null); |
| 84 | |
Mingguang Xu | 066d444 | 2021-01-28 14:07:17 -0800 | [diff] [blame] | 85 | /** |
| 86 | * Whether Wifi scoring is enabled or not. |
| 87 | */ |
| 88 | public static final Key<Boolean> WIFI_SCORING_ENABLED = |
| 89 | new Key<>("wifi_scoring_enabled", true); |
| 90 | |
Roshan Pius | 1ec7610 | 2021-02-11 12:06:57 -0800 | [diff] [blame^] | 91 | /** |
| 92 | * Store the STA factory MAC address retrieved from the driver on the first bootup. |
| 93 | */ |
| 94 | public static final Key<String> WIFI_STA_FACTORY_MAC_ADDRESS = |
| 95 | new Key<>("wifi_sta_factory_mac_address", null); |
| 96 | |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 97 | /******** Wifi shared pref keys ***************/ |
| 98 | |
| 99 | private final Context mContext; |
| 100 | private final Handler mHandler; |
Roshan Pius | b0ed8e2 | 2020-03-19 09:08:16 -0700 | [diff] [blame] | 101 | private final SettingsMigrationDataHolder mSettingsMigrationDataHolder; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 102 | private final WifiConfigManager mWifiConfigManager; |
| 103 | |
| 104 | private final Object mLock = new Object(); |
| 105 | @GuardedBy("mLock") |
| 106 | private final Map<String, Object> mSettings = new HashMap<>(); |
| 107 | @GuardedBy("mLock") |
| 108 | private final Map<String, Map<OnSettingsChangedListener, Handler>> mListeners = |
| 109 | new HashMap<>(); |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 110 | private WifiMigration.SettingsMigrationData mCachedMigrationData = null; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 111 | |
| 112 | private boolean mHasNewDataToSerialize = false; |
| 113 | |
| 114 | /** |
| 115 | * Interface for a settings change listener. |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 116 | * @param <T> Type of the value. |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 117 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 118 | public interface OnSettingsChangedListener<T> { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 119 | /** |
| 120 | * Invoked when a particular key settings changes. |
| 121 | * |
| 122 | * @param key Key that was changed. |
| 123 | * @param newValue New value that was assigned to the key. |
| 124 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 125 | void onSettingsChanged(@NonNull Key<T> key, @Nullable T newValue); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | public WifiSettingsConfigStore(@NonNull Context context, @NonNull Handler handler, |
Roshan Pius | b0ed8e2 | 2020-03-19 09:08:16 -0700 | [diff] [blame] | 129 | @NonNull SettingsMigrationDataHolder settingsMigrationDataHolder, |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 130 | @NonNull WifiConfigManager wifiConfigManager, |
| 131 | @NonNull WifiConfigStore wifiConfigStore) { |
| 132 | mContext = context; |
| 133 | mHandler = handler; |
Roshan Pius | b0ed8e2 | 2020-03-19 09:08:16 -0700 | [diff] [blame] | 134 | mSettingsMigrationDataHolder = settingsMigrationDataHolder; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 135 | mWifiConfigManager = wifiConfigManager; |
| 136 | |
| 137 | // Register our data store. |
| 138 | wifiConfigStore.registerStoreData(new StoreData()); |
| 139 | } |
| 140 | |
| 141 | private void invokeAllListeners() { |
| 142 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 143 | for (Key key : sKeys) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 144 | invokeListeners(key); |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 149 | private <T> void invokeListeners(@NonNull Key<T> key) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 150 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 151 | if (!mSettings.containsKey(key.key)) return; |
| 152 | Object newValue = mSettings.get(key.key); |
| 153 | Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key.key); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 154 | if (listeners == null || listeners.isEmpty()) return; |
| 155 | for (Map.Entry<OnSettingsChangedListener, Handler> listener |
| 156 | : listeners.entrySet()) { |
| 157 | // Trigger the callback in the appropriate handler. |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 158 | listener.getValue().post(() -> |
| 159 | listener.getKey().onSettingsChanged(key, newValue)); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Trigger config store writes and invoke listeners in the main wifi service looper's handler. |
| 166 | */ |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 167 | private void triggerSaveToStoreAndInvokeAllListeners() { |
| 168 | mHandler.post(() -> { |
| 169 | mHasNewDataToSerialize = true; |
| 170 | mWifiConfigManager.saveToStore(true); |
| 171 | |
| 172 | invokeAllListeners(); |
| 173 | }); |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Trigger config store writes and invoke listeners in the main wifi service looper's handler. |
| 178 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 179 | private <T> void triggerSaveToStoreAndInvokeListeners(@NonNull Key<T> key) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 180 | mHandler.post(() -> { |
| 181 | mHasNewDataToSerialize = true; |
| 182 | mWifiConfigManager.saveToStore(true); |
| 183 | |
| 184 | invokeListeners(key); |
| 185 | }); |
| 186 | } |
| 187 | |
| 188 | /** |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 189 | * Performs a one time migration from Settings.Global values to settings store. Only |
| 190 | * performed one time if the settings store is empty. |
| 191 | */ |
| 192 | private void migrateFromSettingsIfNeeded() { |
| 193 | if (!mSettings.isEmpty()) return; // already migrated. |
| 194 | |
Roshan Pius | b0ed8e2 | 2020-03-19 09:08:16 -0700 | [diff] [blame] | 195 | mCachedMigrationData = mSettingsMigrationDataHolder.retrieveData(); |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 196 | if (mCachedMigrationData == null) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 197 | Log.e(TAG, "No settings data to migrate"); |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 198 | return; |
| 199 | } |
| 200 | Log.i(TAG, "Migrating data out of settings to shared preferences"); |
| 201 | |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 202 | mSettings.put(WIFI_P2P_DEVICE_NAME.key, |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 203 | mCachedMigrationData.getP2pDeviceName()); |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 204 | mSettings.put(WIFI_P2P_PENDING_FACTORY_RESET.key, |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 205 | mCachedMigrationData.isP2pFactoryResetPending()); |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 206 | mSettings.put(WIFI_SCAN_ALWAYS_AVAILABLE.key, |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 207 | mCachedMigrationData.isScanAlwaysAvailable()); |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 208 | mSettings.put(WIFI_SCAN_THROTTLE_ENABLED.key, |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 209 | mCachedMigrationData.isScanThrottleEnabled()); |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 210 | mSettings.put(WIFI_VERBOSE_LOGGING_ENABLED.key, |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 211 | mCachedMigrationData.isVerboseLoggingEnabled()); |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 212 | triggerSaveToStoreAndInvokeAllListeners(); |
| 213 | } |
| 214 | |
| 215 | /** |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 216 | * Store a value to the stored settings. |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 217 | * |
| 218 | * @param key One of the settings keys. |
| 219 | * @param value Value to be stored. |
| 220 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 221 | public <T> void put(@NonNull Key<T> key, @Nullable T value) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 222 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 223 | mSettings.put(key.key, value); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 224 | } |
| 225 | triggerSaveToStoreAndInvokeListeners(key); |
| 226 | } |
| 227 | |
| 228 | /** |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 229 | * Retrieve a value from the stored settings. |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 230 | * |
| 231 | * @param key One of the settings keys. |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 232 | * @return value stored in settings, defValue if the key does not exist. |
| 233 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 234 | public @Nullable <T> T get(@NonNull Key<T> key) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 235 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 236 | return (T) mSettings.getOrDefault(key.key, key.defaultValue); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 237 | } |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Register for settings change listener. |
| 242 | * |
| 243 | * @param key One of the settings keys. |
| 244 | * @param listener Listener to be registered. |
| 245 | * @param handler Handler to post the listener |
| 246 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 247 | public <T> void registerChangeListener(@NonNull Key<T> key, |
| 248 | @NonNull OnSettingsChangedListener<T> listener, @NonNull Handler handler) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 249 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 250 | mListeners.computeIfAbsent( |
| 251 | key.key, ignore -> new HashMap<>()).put(listener, handler); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Unregister for settings change listener. |
| 257 | * |
| 258 | * @param key One of the settings keys. |
| 259 | * @param listener Listener to be unregistered. |
| 260 | */ |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 261 | public <T> void unregisterChangeListener(@NonNull Key<T> key, |
| 262 | @NonNull OnSettingsChangedListener<T> listener) { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 263 | synchronized (mLock) { |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 264 | Map<OnSettingsChangedListener, Handler> listeners = mListeners.get(key.key); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 265 | if (listeners == null || listeners.isEmpty()) { |
| 266 | Log.e(TAG, "No listeners for " + key); |
| 267 | return; |
| 268 | } |
| 269 | if (listeners.remove(listener) == null) { |
| 270 | Log.e(TAG, "Unknown listener for " + key); |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | /** |
Roshan Pius | da0d199 | 2020-03-04 08:34:42 -0800 | [diff] [blame] | 276 | * Dump output for debugging. |
| 277 | */ |
| 278 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 279 | pw.println(); |
| 280 | pw.println("Dump of " + TAG); |
| 281 | pw.println("Settings:"); |
| 282 | for (Map.Entry<String, Object> entry : mSettings.entrySet()) { |
| 283 | pw.print(entry.getKey()); |
| 284 | pw.print("="); |
| 285 | pw.println(entry.getValue()); |
| 286 | } |
| 287 | if (mCachedMigrationData == null) return; |
| 288 | pw.println("Migration data:"); |
| 289 | pw.print(WIFI_P2P_DEVICE_NAME.key); |
| 290 | pw.print("="); |
| 291 | pw.println(mCachedMigrationData.getP2pDeviceName()); |
| 292 | pw.print(WIFI_P2P_PENDING_FACTORY_RESET.key); |
| 293 | pw.print("="); |
| 294 | pw.println(mCachedMigrationData.isP2pFactoryResetPending()); |
| 295 | pw.print(WIFI_SCAN_ALWAYS_AVAILABLE.key); |
| 296 | pw.print("="); |
| 297 | pw.println(mCachedMigrationData.isScanAlwaysAvailable()); |
| 298 | pw.print(WIFI_SCAN_THROTTLE_ENABLED.key); |
| 299 | pw.print("="); |
| 300 | pw.println(mCachedMigrationData.isScanThrottleEnabled()); |
| 301 | pw.print(WIFI_VERBOSE_LOGGING_ENABLED.key); |
| 302 | pw.print("="); |
| 303 | pw.println(mCachedMigrationData.isVerboseLoggingEnabled()); |
| 304 | pw.println(); |
| 305 | } |
| 306 | |
| 307 | /** |
Roshan Pius | 67ee429 | 2020-02-25 09:51:02 -0800 | [diff] [blame] | 308 | * Base class to store string key and its default value. |
| 309 | * @param <T> Type of the value. |
| 310 | */ |
| 311 | public static class Key<T> { |
| 312 | public final String key; |
| 313 | public final T defaultValue; |
| 314 | |
| 315 | private Key(@NonNull String key, T defaultValue) { |
| 316 | this.key = key; |
| 317 | this.defaultValue = defaultValue; |
| 318 | sKeys.add(this); |
| 319 | } |
| 320 | |
| 321 | @Override |
| 322 | public String toString() { |
| 323 | return "[Key " + key + ", DefaultValue: " + defaultValue + "]"; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | /** |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 328 | * Store data for persisting the settings data to config store. |
| 329 | */ |
| 330 | private class StoreData implements WifiConfigStore.StoreData { |
| 331 | private static final String XML_TAG_SECTION_HEADER = "Settings"; |
| 332 | private static final String XML_TAG_VALUES = "Values"; |
| 333 | |
| 334 | @Override |
| 335 | public void serializeData(XmlSerializer out, |
| 336 | @Nullable WifiConfigStoreEncryptionUtil encryptionUtil) |
| 337 | throws XmlPullParserException, IOException { |
| 338 | synchronized (mLock) { |
| 339 | XmlUtil.writeNextValue(out, XML_TAG_VALUES, mSettings); |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | @Override |
| 344 | public void deserializeData(XmlPullParser in, int outerTagDepth, |
| 345 | @WifiConfigStore.Version int version, |
Roshan Pius | fdf57e6 | 2020-03-16 13:33:16 -0700 | [diff] [blame] | 346 | @Nullable WifiConfigStoreEncryptionUtil encryptionUtil) |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 347 | throws XmlPullParserException, IOException { |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 348 | if (in == null) { |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 349 | // Empty read triggers the migration since it indicates that there is no settings |
| 350 | // data stored in the settings store. |
| 351 | migrateFromSettingsIfNeeded(); |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 352 | return; |
| 353 | } |
| 354 | Map<String, Object> values = null; |
| 355 | while (!XmlUtil.isNextSectionEnd(in, outerTagDepth)) { |
| 356 | String[] valueName = new String[1]; |
| 357 | Object value = XmlUtil.readCurrentValue(in, valueName); |
| 358 | if (TextUtils.isEmpty(valueName[0])) { |
| 359 | throw new XmlPullParserException("Missing value name"); |
| 360 | } |
| 361 | switch (valueName[0]) { |
| 362 | case XML_TAG_VALUES: |
| 363 | values = (Map) value; |
| 364 | break; |
| 365 | default: |
| 366 | Log.w(TAG, "Ignoring unknown tag under " + XML_TAG_SECTION_HEADER + ": " |
| 367 | + valueName[0]); |
| 368 | break; |
| 369 | } |
| 370 | } |
| 371 | if (values != null) { |
| 372 | synchronized (mLock) { |
| 373 | mSettings.putAll(values); |
| 374 | // Invoke all the registered listeners. |
| 375 | invokeAllListeners(); |
| 376 | } |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | @Override |
| 381 | public void resetData() { |
| 382 | synchronized (mLock) { |
| 383 | mSettings.clear(); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | @Override |
| 388 | public boolean hasNewDataToSerialize() { |
| 389 | return mHasNewDataToSerialize; |
| 390 | } |
| 391 | |
| 392 | @Override |
| 393 | public String getName() { |
| 394 | return XML_TAG_SECTION_HEADER; |
| 395 | } |
| 396 | |
| 397 | @Override |
| 398 | public @WifiConfigStore.StoreFileId int getStoreFileId() { |
| 399 | // Shared general store. |
Roshan Pius | 0412d2d | 2020-02-10 13:26:42 -0800 | [diff] [blame] | 400 | return WifiConfigStore.STORE_FILE_SHARED_GENERAL; |
Roshan Pius | b790f67 | 2020-02-14 07:06:13 -0800 | [diff] [blame] | 401 | } |
| 402 | } |
| 403 | } |