WifiSettings.java revision 9fb7a3b8b44f4d45c0e253c0780009eb702e2de3
1/* 2 * Copyright (C) 2010 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 17package com.android.settings.wifi; 18 19import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 20 21import android.annotation.NonNull; 22import android.app.Activity; 23import android.app.Dialog; 24import android.app.admin.DevicePolicyManager; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.content.pm.PackageManager.NameNotFoundException; 31import android.content.res.Resources; 32import android.net.ConnectivityManager; 33import android.net.NetworkInfo; 34import android.net.NetworkInfo.State; 35import android.net.wifi.WifiConfiguration; 36import android.net.wifi.WifiManager; 37import android.net.wifi.WpsInfo; 38import android.nfc.NfcAdapter; 39import android.os.Bundle; 40import android.os.HandlerThread; 41import android.os.Process; 42import android.provider.Settings; 43import android.support.annotation.VisibleForTesting; 44import android.support.v7.preference.Preference; 45import android.support.v7.preference.PreferenceCategory; 46import android.util.Log; 47import android.view.ContextMenu; 48import android.view.ContextMenu.ContextMenuInfo; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.View; 52import android.widget.ProgressBar; 53import android.widget.Toast; 54 55import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 56import com.android.settings.LinkifyUtils; 57import com.android.settings.R; 58import com.android.settings.RestrictedSettingsFragment; 59import com.android.settings.SettingsActivity; 60import com.android.settings.dashboard.SummaryLoader; 61import com.android.settings.location.ScanningSettings; 62import com.android.settings.search.BaseSearchIndexProvider; 63import com.android.settings.search.Indexable; 64import com.android.settings.search.SearchIndexableRaw; 65import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 66import com.android.settings.widget.SwitchBarController; 67import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 68import com.android.settingslib.RestrictedLockUtils; 69import com.android.settingslib.wifi.AccessPoint; 70import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 71import com.android.settingslib.wifi.AccessPointPreference; 72import com.android.settingslib.wifi.WifiTracker; 73import com.android.settingslib.wifi.WifiTrackerFactory; 74 75import java.util.ArrayList; 76import java.util.List; 77 78/** 79 * Two types of UI are provided here. 80 * 81 * The first is for "usual Settings", appearing as any other Setup fragment. 82 * 83 * The second is for Setup Wizard, with a simplified interface that hides the action bar 84 * and menus. 85 */ 86public class WifiSettings extends RestrictedSettingsFragment 87 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 88 WifiDialog.WifiDialogListener { 89 90 private static final String TAG = "WifiSettings"; 91 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 92 93 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 94 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 95 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 96 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 97 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 98 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 99 100 public static final int WIFI_DIALOG_ID = 1; 101 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 102 private static final int WPS_PIN_DIALOG_ID = 3; 103 private static final int WRITE_NFC_DIALOG_ID = 6; 104 105 // Instance state keys 106 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 107 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 108 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 109 110 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 111 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 112 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 113 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 114 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 115 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 116 117 private final Runnable mUpdateAccessPointsRunnable = () -> { 118 updateAccessPointPreferences(); 119 }; 120 private final Runnable mHideProgressBarRunnable = () -> { 121 setProgressBarVisible(false); 122 }; 123 124 protected WifiManager mWifiManager; 125 private WifiManager.ActionListener mConnectListener; 126 private WifiManager.ActionListener mSaveListener; 127 private WifiManager.ActionListener mForgetListener; 128 129 /** 130 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 131 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 132 * by the Test DPC tool in AFW mode. 133 */ 134 private boolean mIsRestricted; 135 136 private WifiEnabler mWifiEnabler; 137 // An access point being editted is stored here. 138 private AccessPoint mSelectedAccessPoint; 139 140 private WifiDialog mDialog; 141 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 142 143 private ProgressBar mProgressHeader; 144 145 // this boolean extra specifies whether to disable the Next button when not connected. Used by 146 // account creation outside of setup wizard. 147 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 148 // This string extra specifies a network to open the connect dialog on, so the user can enter 149 // network credentials. This is used by quick settings for secured networks, among other 150 // things. 151 public static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 152 153 // should Next button only be enabled when we have a connection? 154 private boolean mEnableNextOnConnection; 155 156 // Save the dialog details 157 private int mDialogMode; 158 private AccessPoint mDlgAccessPoint; 159 private Bundle mAccessPointSavedState; 160 private Bundle mWifiNfcDialogSavedState; 161 162 private WifiTracker mWifiTracker; 163 private String mOpenSsid; 164 165 private HandlerThread mBgThread; 166 167 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 168 169 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 170 private PreferenceCategory mAccessPointsPreferenceCategory; 171 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 172 private Preference mAddPreference; 173 private Preference mConfigureWifiSettingsPreference; 174 private Preference mSavedNetworksPreference; 175 private LinkablePreference mStatusMessagePreference; 176 177 // For Search 178 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 179 180 /* End of "used in Wifi Setup context" */ 181 182 public WifiSettings() { 183 super(DISALLOW_CONFIG_WIFI); 184 } 185 186 @Override 187 public void onViewCreated(View view, Bundle savedInstanceState) { 188 super.onViewCreated(view, savedInstanceState); 189 final Activity activity = getActivity(); 190 if (activity != null) { 191 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 192 setProgressBarVisible(false); 193 } 194 } 195 196 @Override 197 public void onCreate(Bundle icicle) { 198 super.onCreate(icicle); 199 200 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 201 // loaded (ODR). 202 setAnimationAllowed(false); 203 204 addPreferences(); 205 206 mIsRestricted = isUiRestricted(); 207 208 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 209 mBgThread.start(); 210 } 211 212 private void addPreferences() { 213 addPreferencesFromResource(R.xml.wifi_settings); 214 215 mConnectedAccessPointPreferenceCategory = 216 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 217 mAccessPointsPreferenceCategory = 218 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 219 mAdditionalSettingsPreferenceCategory = 220 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 221 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 222 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 223 224 Context prefContext = getPrefContext(); 225 mAddPreference = new Preference(prefContext); 226 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 227 mAddPreference.setTitle(R.string.wifi_add_network); 228 mStatusMessagePreference = new LinkablePreference(prefContext); 229 230 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 231 } 232 233 @Override 234 public void onDestroy() { 235 mBgThread.quit(); 236 super.onDestroy(); 237 } 238 239 @Override 240 public void onActivityCreated(Bundle savedInstanceState) { 241 super.onActivityCreated(savedInstanceState); 242 243 mWifiTracker = WifiTrackerFactory.create( 244 getActivity(), this, mBgThread.getLooper(), true, true, false); 245 mWifiManager = mWifiTracker.getManager(); 246 247 mConnectListener = new WifiManager.ActionListener() { 248 @Override 249 public void onSuccess() { 250 } 251 @Override 252 public void onFailure(int reason) { 253 Activity activity = getActivity(); 254 if (activity != null) { 255 Toast.makeText(activity, 256 R.string.wifi_failed_connect_message, 257 Toast.LENGTH_SHORT).show(); 258 } 259 } 260 }; 261 262 mSaveListener = new WifiManager.ActionListener() { 263 @Override 264 public void onSuccess() { 265 } 266 @Override 267 public void onFailure(int reason) { 268 Activity activity = getActivity(); 269 if (activity != null) { 270 Toast.makeText(activity, 271 R.string.wifi_failed_save_message, 272 Toast.LENGTH_SHORT).show(); 273 } 274 } 275 }; 276 277 mForgetListener = new WifiManager.ActionListener() { 278 @Override 279 public void onSuccess() { 280 } 281 @Override 282 public void onFailure(int reason) { 283 Activity activity = getActivity(); 284 if (activity != null) { 285 Toast.makeText(activity, 286 R.string.wifi_failed_forget_message, 287 Toast.LENGTH_SHORT).show(); 288 } 289 } 290 }; 291 292 if (savedInstanceState != null) { 293 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 294 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 295 mAccessPointSavedState = 296 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 297 } 298 299 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 300 mWifiNfcDialogSavedState = 301 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 302 } 303 } 304 305 // if we're supposed to enable/disable the Next button based on our current connection 306 // state, start it off in the right state 307 Intent intent = getActivity().getIntent(); 308 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 309 310 if (mEnableNextOnConnection) { 311 if (hasNextButton()) { 312 final ConnectivityManager connectivity = (ConnectivityManager) 313 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 314 if (connectivity != null) { 315 NetworkInfo info = connectivity.getNetworkInfo( 316 ConnectivityManager.TYPE_WIFI); 317 changeNextButtonState(info.isConnected()); 318 } 319 } 320 } 321 322 registerForContextMenu(getListView()); 323 setHasOptionsMenu(true); 324 325 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 326 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 327 } 328 } 329 330 @Override 331 public void onDestroyView() { 332 super.onDestroyView(); 333 334 if (mWifiEnabler != null) { 335 mWifiEnabler.teardownSwitchController(); 336 } 337 } 338 339 @Override 340 public void onStart() { 341 super.onStart(); 342 343 // On/off switch is hidden for Setup Wizard (returns null) 344 mWifiEnabler = createWifiEnabler(); 345 346 mWifiTracker.startTracking(); 347 348 if (mIsRestricted) { 349 restrictUi(); 350 return; 351 } 352 353 onWifiStateChanged(mWifiManager.getWifiState()); 354 } 355 356 private void restrictUi() { 357 if (!isUiRestrictedByOnlyAdmin()) { 358 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 359 } 360 getPreferenceScreen().removeAll(); 361 } 362 363 /** 364 * Only update the AP list if there are not any APs currently shown. 365 * 366 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 367 * and off. In other use cases, the previous APs will remain until the next update is received 368 * from {@link WifiTracker}. 369 */ 370 private void conditionallyForceUpdateAPs() { 371 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 372 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 373 AccessPointPreference) { 374 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 375 // WifiTracker. 376 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 377 getView().removeCallbacks(mUpdateAccessPointsRunnable); 378 return; 379 } 380 setProgressBarVisible(true); 381 mWifiTracker.forceUpdate(); 382 if (DEBUG) { 383 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 384 } 385 getView().removeCallbacks(mUpdateAccessPointsRunnable); 386 updateAccessPointPreferences(); 387 } 388 389 /** 390 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 391 */ 392 private WifiEnabler createWifiEnabler() { 393 final SettingsActivity activity = (SettingsActivity) getActivity(); 394 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 395 mMetricsFeatureProvider); 396 } 397 398 @Override 399 public void onResume() { 400 final Activity activity = getActivity(); 401 super.onResume(); 402 403 // Because RestrictedSettingsFragment's onResume potentially requests authorization, 404 // which changes the restriction state, recalculate it. 405 final boolean alreadyImmutablyRestricted = mIsRestricted; 406 mIsRestricted = isUiRestricted(); 407 if (!alreadyImmutablyRestricted && mIsRestricted) { 408 restrictUi(); 409 } 410 411 if (mWifiEnabler != null) { 412 mWifiEnabler.resume(activity); 413 } 414 } 415 416 @Override 417 public void onPause() { 418 super.onPause(); 419 if (mWifiEnabler != null) { 420 mWifiEnabler.pause(); 421 } 422 } 423 424 @Override 425 public void onStop() { 426 mWifiTracker.stopTracking(); 427 getView().removeCallbacks(mUpdateAccessPointsRunnable); 428 getView().removeCallbacks(mHideProgressBarRunnable); 429 super.onStop(); 430 } 431 432 @Override 433 public void onActivityResult(int requestCode, int resultCode, Intent data) { 434 super.onActivityResult(requestCode, resultCode, data); 435 436 final boolean formerlyRestricted = mIsRestricted; 437 mIsRestricted = isUiRestricted(); 438 if (formerlyRestricted && !mIsRestricted 439 && getPreferenceScreen().getPreferenceCount() == 0) { 440 // De-restrict the ui 441 addPreferences(); 442 } 443 } 444 445 @Override 446 public int getMetricsCategory() { 447 return MetricsEvent.WIFI; 448 } 449 450 @Override 451 public void onSaveInstanceState(Bundle outState) { 452 super.onSaveInstanceState(outState); 453 454 // If the dialog is showing, save its state. 455 if (mDialog != null && mDialog.isShowing()) { 456 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 457 if (mDlgAccessPoint != null) { 458 mAccessPointSavedState = new Bundle(); 459 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 460 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 461 } 462 } 463 464 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 465 Bundle savedState = new Bundle(); 466 mWifiToNfcDialog.saveState(savedState); 467 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 468 } 469 } 470 471 @Override 472 public boolean onOptionsItemSelected(MenuItem item) { 473 // If the user is not allowed to configure wifi, do not handle menu selections. 474 if (mIsRestricted) { 475 return false; 476 } 477 478 switch (item.getItemId()) { 479 case MENU_ID_WPS_PBC: 480 showDialog(WPS_PBC_DIALOG_ID); 481 return true; 482 /* 483 case MENU_ID_P2P: 484 if (getActivity() instanceof SettingsActivity) { 485 ((SettingsActivity) getActivity()).startPreferencePanel( 486 WifiP2pSettings.class.getCanonicalName(), 487 null, 488 R.string.wifi_p2p_settings_title, null, 489 this, 0); 490 } else { 491 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 492 R.string.wifi_p2p_settings_title, -1, null); 493 } 494 return true; 495 */ 496 case MENU_ID_WPS_PIN: 497 showDialog(WPS_PIN_DIALOG_ID); 498 return true; 499 } 500 return super.onOptionsItemSelected(item); 501 } 502 503 @Override 504 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 505 Preference preference = (Preference) view.getTag(); 506 507 if (preference instanceof LongPressAccessPointPreference) { 508 mSelectedAccessPoint = 509 ((LongPressAccessPointPreference) preference).getAccessPoint(); 510 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 511 if (mSelectedAccessPoint.isConnectable()) { 512 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 513 } 514 515 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 516 // Some configs are ineditable 517 if (isEditabilityLockedDown(getActivity(), config)) { 518 return; 519 } 520 521 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 522 // Allow forgetting a network if either the network is saved or ephemerally 523 // connected. (In the latter case, "forget" blacklists the network so it won't 524 // be used again, ephemerally). 525 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 526 } 527 if (mSelectedAccessPoint.isSaved()) { 528 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 529 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 530 if (nfcAdapter != null && nfcAdapter.isEnabled() && 531 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 532 // Only allow writing of NFC tags for password-protected networks. 533 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 534 } 535 } 536 } 537 } 538 539 @Override 540 public boolean onContextItemSelected(MenuItem item) { 541 if (mSelectedAccessPoint == null) { 542 return super.onContextItemSelected(item); 543 } 544 switch (item.getItemId()) { 545 case MENU_ID_CONNECT: { 546 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 547 if (isSavedNetwork) { 548 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 549 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 550 /** Bypass dialog for unsecured networks */ 551 mSelectedAccessPoint.generateOpenNetworkConfig(); 552 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 553 } else { 554 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 555 } 556 return true; 557 } 558 case MENU_ID_FORGET: { 559 forget(); 560 return true; 561 } 562 case MENU_ID_MODIFY: { 563 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 564 return true; 565 } 566 case MENU_ID_WRITE_NFC: 567 showDialog(WRITE_NFC_DIALOG_ID); 568 return true; 569 570 } 571 return super.onContextItemSelected(item); 572 } 573 574 @Override 575 public boolean onPreferenceTreeClick(Preference preference) { 576 // If the preference has a fragment set, open that 577 if (preference.getFragment() != null) { 578 preference.setOnPreferenceClickListener(null); 579 return super.onPreferenceTreeClick(preference); 580 } 581 582 if (preference instanceof LongPressAccessPointPreference) { 583 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 584 if (mSelectedAccessPoint == null) { 585 return false; 586 } 587 if (mSelectedAccessPoint.isActive()) { 588 return super.onPreferenceTreeClick(preference); 589 } 590 /** 591 * Bypass dialog and connect to unsecured networks, or previously connected saved 592 * networks, or Passpoint provided networks. 593 */ 594 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 595 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 596 mSelectedAccessPoint.generateOpenNetworkConfig(); 597 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 598 } else if (mSelectedAccessPoint.isSaved() && config != null 599 && config.getNetworkSelectionStatus() != null 600 && config.getNetworkSelectionStatus().getHasEverConnected()) { 601 connect(config, true /* isSavedNetwork */); 602 } else if (mSelectedAccessPoint.isPasspoint()) { 603 // Access point provided by an installed Passpoint provider, connect using 604 // the associated config. 605 connect(config, true /* isSavedNetwork */); 606 } else { 607 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 608 } 609 } else if (preference == mAddPreference) { 610 onAddNetworkPressed(); 611 } else { 612 return super.onPreferenceTreeClick(preference); 613 } 614 return true; 615 } 616 617 private void showDialog(AccessPoint accessPoint, int dialogMode) { 618 if (accessPoint != null) { 619 WifiConfiguration config = accessPoint.getConfig(); 620 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 621 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 622 RestrictedLockUtils.getDeviceOwner(getActivity())); 623 return; 624 } 625 } 626 627 if (mDialog != null) { 628 removeDialog(WIFI_DIALOG_ID); 629 mDialog = null; 630 } 631 632 // Save the access point and edit mode 633 mDlgAccessPoint = accessPoint; 634 mDialogMode = dialogMode; 635 636 showDialog(WIFI_DIALOG_ID); 637 } 638 639 @Override 640 public Dialog onCreateDialog(int dialogId) { 641 switch (dialogId) { 642 case WIFI_DIALOG_ID: 643 AccessPoint ap = mDlgAccessPoint; // For manual launch 644 if (ap == null) { // For re-launch from saved state 645 if (mAccessPointSavedState != null) { 646 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 647 // For repeated orientation changes 648 mDlgAccessPoint = ap; 649 // Reset the saved access point data 650 mAccessPointSavedState = null; 651 } 652 } 653 // If it's null, fine, it's for Add Network 654 mSelectedAccessPoint = ap; 655 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 656 /* no hide submit/connect */ false); 657 return mDialog; 658 case WPS_PBC_DIALOG_ID: 659 return new WpsDialog(getActivity(), WpsInfo.PBC); 660 case WPS_PIN_DIALOG_ID: 661 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 662 case WRITE_NFC_DIALOG_ID: 663 if (mSelectedAccessPoint != null) { 664 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 665 getActivity(), 666 mSelectedAccessPoint.getSecurity(), 667 new WifiManagerWrapper(mWifiManager)); 668 } else if (mWifiNfcDialogSavedState != null) { 669 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 670 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 671 } 672 673 return mWifiToNfcDialog; 674 } 675 return super.onCreateDialog(dialogId); 676 } 677 678 @Override 679 public int getDialogMetricsCategory(int dialogId) { 680 switch (dialogId) { 681 case WIFI_DIALOG_ID: 682 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 683 case WPS_PBC_DIALOG_ID: 684 return MetricsEvent.DIALOG_WIFI_PBC; 685 case WPS_PIN_DIALOG_ID: 686 return MetricsEvent.DIALOG_WIFI_PIN; 687 case WRITE_NFC_DIALOG_ID: 688 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 689 default: 690 return 0; 691 } 692 } 693 694 /** 695 * Called to indicate the list of AccessPoints has been updated and 696 * getAccessPoints should be called to get the latest information. 697 */ 698 @Override 699 public void onAccessPointsChanged() { 700 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 701 updateAccessPointsDelayed(); 702 } 703 704 /** 705 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 706 * progress bar displayed before starting to modify APs. 707 */ 708 private void updateAccessPointsDelayed() { 709 // Safeguard from some delayed event handling 710 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 711 setProgressBarVisible(true); 712 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 713 } 714 } 715 716 /** Called when the state of Wifi has changed. */ 717 @Override 718 public void onWifiStateChanged(int state) { 719 if (mIsRestricted) { 720 return; 721 } 722 723 final int wifiState = mWifiManager.getWifiState(); 724 switch (wifiState) { 725 case WifiManager.WIFI_STATE_ENABLED: 726 conditionallyForceUpdateAPs(); 727 break; 728 729 case WifiManager.WIFI_STATE_ENABLING: 730 removeConnectedAccessPointPreference(); 731 mAccessPointsPreferenceCategory.removeAll(); 732 addMessagePreference(R.string.wifi_starting); 733 setProgressBarVisible(true); 734 break; 735 736 case WifiManager.WIFI_STATE_DISABLING: 737 removeConnectedAccessPointPreference(); 738 mAccessPointsPreferenceCategory.removeAll(); 739 addMessagePreference(R.string.wifi_stopping); 740 break; 741 742 case WifiManager.WIFI_STATE_DISABLED: 743 setOffMessage(); 744 setAdditionalSettingsSummaries(); 745 setProgressBarVisible(false); 746 break; 747 } 748 } 749 750 /** 751 * Called when the connection state of wifi has changed and isConnected 752 * should be called to get the updated state. 753 */ 754 @Override 755 public void onConnectedChanged() { 756 updateAccessPointsDelayed(); 757 changeNextButtonState(mWifiTracker.isConnected()); 758 } 759 760 /** Helper method to return whether an AccessPoint is disabled due to a wrong password */ 761 private static boolean isDisabledByWrongPassword(AccessPoint accessPoint) { 762 WifiConfiguration config = accessPoint.getConfig(); 763 if (config == null) { 764 return false; 765 } 766 WifiConfiguration.NetworkSelectionStatus networkStatus = 767 config.getNetworkSelectionStatus(); 768 if (networkStatus == null || networkStatus.isNetworkEnabled()) { 769 return false; 770 } 771 int reason = networkStatus.getNetworkSelectionDisableReason(); 772 return WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WRONG_PASSWORD == reason; 773 } 774 775 private void updateAccessPointPreferences() { 776 // in case state has changed 777 if (!mWifiManager.isWifiEnabled()) { 778 return; 779 } 780 // AccessPoints are sorted by the WifiTracker 781 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 782 if (DEBUG) { 783 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 784 } 785 786 boolean hasAvailableAccessPoints = false; 787 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 788 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 789 790 int index = 791 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 792 int numAccessPoints = accessPoints.size(); 793 for (; index < numAccessPoints; index++) { 794 AccessPoint accessPoint = accessPoints.get(index); 795 // Ignore access points that are out of range. 796 if (accessPoint.isReachable()) { 797 String key = AccessPointPreference.generatePreferenceKey(accessPoint); 798 hasAvailableAccessPoints = true; 799 LongPressAccessPointPreference pref = 800 (LongPressAccessPointPreference) getCachedPreference(key); 801 if (pref != null) { 802 pref.setOrder(index); 803 continue; 804 } 805 LongPressAccessPointPreference preference = 806 createLongPressActionPointPreference(accessPoint); 807 preference.setKey(key); 808 preference.setOrder(index); 809 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 810 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 811 if (!accessPoint.isSaved() || isDisabledByWrongPassword(accessPoint)) { 812 onPreferenceTreeClick(preference); 813 mOpenSsid = null; 814 } 815 } 816 mAccessPointsPreferenceCategory.addPreference(preference); 817 accessPoint.setListener(WifiSettings.this); 818 preference.refresh(); 819 } 820 } 821 removeCachedPrefs(mAccessPointsPreferenceCategory); 822 mAddPreference.setOrder(index); 823 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 824 setAdditionalSettingsSummaries(); 825 826 if (!hasAvailableAccessPoints) { 827 setProgressBarVisible(true); 828 Preference pref = new Preference(getPrefContext()); 829 pref.setSelectable(false); 830 pref.setSummary(R.string.wifi_empty_list_wifi_on); 831 pref.setOrder(index++); 832 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 833 mAccessPointsPreferenceCategory.addPreference(pref); 834 } else { 835 // Continuing showing progress bar for an additional delay to overlap with animation 836 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 837 } 838 } 839 840 @NonNull 841 private LongPressAccessPointPreference createLongPressActionPointPreference( 842 AccessPoint accessPoint) { 843 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 844 false, R.drawable.ic_wifi_signal_0, this); 845 } 846 847 /** 848 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 849 * shown. 850 */ 851 private boolean configureConnectedAccessPointPreferenceCategory( 852 List<AccessPoint> accessPoints) { 853 if (accessPoints.size() == 0) { 854 removeConnectedAccessPointPreference(); 855 return false; 856 } 857 858 AccessPoint connectedAp = accessPoints.get(0); 859 if (!connectedAp.isActive()) { 860 removeConnectedAccessPointPreference(); 861 return false; 862 } 863 864 // Is the preference category empty? 865 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 866 addConnectedAccessPointPreference(connectedAp); 867 return true; 868 } 869 870 // Is the previous currently connected SSID different from the new one? 871 if (!((AccessPointPreference) 872 mConnectedAccessPointPreferenceCategory.getPreference(0)) 873 .getAccessPoint().getSsidStr().equals( 874 connectedAp.getSsidStr())) { 875 removeConnectedAccessPointPreference(); 876 addConnectedAccessPointPreference(connectedAp); 877 return true; 878 } 879 880 // Else same AP is connected, simply refresh the connected access point preference 881 // (first and only access point in this category). 882 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 883 .refresh(); 884 return true; 885 } 886 887 /** 888 * Creates a Preference for the given {@link AccessPoint} and adds it to the 889 * {@link #mConnectedAccessPointPreferenceCategory}. 890 */ 891 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 892 String key = connectedAp.getBssid(); 893 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 894 getCachedPreference(key); 895 if (pref == null) { 896 pref = createLongPressActionPointPreference(connectedAp); 897 } 898 899 // Save the state of the current access point in the bundle so that we can restore it 900 // in the Wifi Network Details Fragment 901 pref.getAccessPoint().saveWifiState(pref.getExtras()); 902 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 903 pref.refresh(); 904 905 mConnectedAccessPointPreferenceCategory.addPreference(pref); 906 mConnectedAccessPointPreferenceCategory.setVisible(true); 907 } 908 909 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 910 private void removeConnectedAccessPointPreference() { 911 mConnectedAccessPointPreferenceCategory.removeAll(); 912 mConnectedAccessPointPreferenceCategory.setVisible(false); 913 } 914 915 private void setAdditionalSettingsSummaries() { 916 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 917 final int defaultWakeupAvailable = getResources().getInteger( 918 com.android.internal.R.integer.config_wifi_wakeup_available); 919 boolean wifiWakeupAvailable = Settings.Global.getInt( 920 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 921 == 1; 922 if (wifiWakeupAvailable) { 923 boolean wifiWakeupEnabled = Settings.Global.getInt( 924 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 925 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 926 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 927 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 928 } 929 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 930 if (numSavedNetworks > 0) { 931 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 932 mSavedNetworksPreference.setSummary( 933 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 934 numSavedNetworks, numSavedNetworks)); 935 } else { 936 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 937 } 938 } 939 940 private void setOffMessage() { 941 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 942 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 943 // read the system settings directly. Because when the device is in Airplane mode, even if 944 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 945 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 946 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 947 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 948 : getText(R.string.wifi_scan_notify_text_scanning_off); 949 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 950 @Override 951 public void onClick() { 952 final SettingsActivity activity = (SettingsActivity) getActivity(); 953 activity.startPreferencePanel(WifiSettings.this, 954 ScanningSettings.class.getName(), 955 null, R.string.location_scanning_screen_title, null, null, 0); 956 } 957 }; 958 mStatusMessagePreference.setText(title, description, clickListener); 959 removeConnectedAccessPointPreference(); 960 mAccessPointsPreferenceCategory.removeAll(); 961 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 962 } 963 964 private void addMessagePreference(int messageId) { 965 mStatusMessagePreference.setTitle(messageId); 966 removeConnectedAccessPointPreference(); 967 mAccessPointsPreferenceCategory.removeAll(); 968 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 969 } 970 971 protected void setProgressBarVisible(boolean visible) { 972 if (mProgressHeader != null) { 973 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 974 } 975 } 976 977 /** 978 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 979 * Wifi setup screens, not in usual wifi settings screen. 980 * 981 * @param enabled true when the device is connected to a wifi network. 982 */ 983 private void changeNextButtonState(boolean enabled) { 984 if (mEnableNextOnConnection && hasNextButton()) { 985 getNextButton().setEnabled(enabled); 986 } 987 } 988 989 @Override 990 public void onForget(WifiDialog dialog) { 991 forget(); 992 } 993 994 @Override 995 public void onSubmit(WifiDialog dialog) { 996 if (mDialog != null) { 997 submit(mDialog.getController()); 998 } 999 } 1000 1001 /* package */ void submit(WifiConfigController configController) { 1002 1003 final WifiConfiguration config = configController.getConfig(); 1004 1005 if (config == null) { 1006 if (mSelectedAccessPoint != null 1007 && mSelectedAccessPoint.isSaved()) { 1008 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 1009 } 1010 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 1011 mWifiManager.save(config, mSaveListener); 1012 } else { 1013 mWifiManager.save(config, mSaveListener); 1014 if (mSelectedAccessPoint != null) { // Not an "Add network" 1015 connect(config, false /* isSavedNetwork */); 1016 } 1017 } 1018 1019 mWifiTracker.resumeScanning(); 1020 } 1021 1022 /* package */ void forget() { 1023 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 1024 if (!mSelectedAccessPoint.isSaved()) { 1025 if (mSelectedAccessPoint.getNetworkInfo() != null && 1026 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 1027 // Network is active but has no network ID - must be ephemeral. 1028 mWifiManager.disableEphemeralNetwork( 1029 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 1030 } else { 1031 // Should not happen, but a monkey seems to trigger it 1032 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 1033 return; 1034 } 1035 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 1036 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 1037 } else { 1038 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 1039 } 1040 1041 mWifiTracker.resumeScanning(); 1042 1043 // We need to rename/replace "Next" button in wifi setup context. 1044 changeNextButtonState(false); 1045 } 1046 1047 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 1048 // Log subtype if configuration is a saved network. 1049 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1050 isSavedNetwork); 1051 mWifiManager.connect(config, mConnectListener); 1052 scrollToPreference(mConnectedAccessPointPreferenceCategory); 1053 } 1054 1055 protected void connect(final int networkId, boolean isSavedNetwork) { 1056 // Log subtype if configuration is a saved network. 1057 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1058 isSavedNetwork); 1059 mWifiManager.connect(networkId, mConnectListener); 1060 } 1061 1062 /** 1063 * Called when "add network" button is pressed. 1064 */ 1065 /* package */ void onAddNetworkPressed() { 1066 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1067 // No exact access point is selected. 1068 mSelectedAccessPoint = null; 1069 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1070 } 1071 1072 @Override 1073 protected int getHelpResource() { 1074 return R.string.help_url_wifi; 1075 } 1076 1077 @Override 1078 public void onAccessPointChanged(final AccessPoint accessPoint) { 1079 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1080 View view = getView(); 1081 if (view != null) { 1082 view.post(new Runnable() { 1083 @Override 1084 public void run() { 1085 Object tag = accessPoint.getTag(); 1086 if (tag != null) { 1087 ((LongPressAccessPointPreference) tag).refresh(); 1088 } 1089 } 1090 }); 1091 } 1092 } 1093 1094 @Override 1095 public void onLevelChanged(AccessPoint accessPoint) { 1096 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1097 } 1098 1099 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1100 new BaseSearchIndexProvider() { 1101 @Override 1102 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1103 final List<SearchIndexableRaw> result = new ArrayList<>(); 1104 final Resources res = context.getResources(); 1105 1106 // Add fragment title 1107 SearchIndexableRaw data = new SearchIndexableRaw(context); 1108 data.title = res.getString(R.string.wifi_settings); 1109 data.screenTitle = res.getString(R.string.wifi_settings); 1110 data.keywords = res.getString(R.string.keywords_wifi); 1111 data.key = DATA_KEY_REFERENCE; 1112 result.add(data); 1113 1114 // Add saved Wi-Fi access points 1115 final List<AccessPoint> accessPoints = 1116 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1117 for (AccessPoint accessPoint : accessPoints) { 1118 data = new SearchIndexableRaw(context); 1119 data.title = accessPoint.getSsidStr(); 1120 data.screenTitle = res.getString(R.string.wifi_settings); 1121 data.enabled = enabled; 1122 result.add(data); 1123 } 1124 1125 return result; 1126 } 1127 }; 1128 1129 /** 1130 * Returns true if the config is not editable through Settings. 1131 * @param context Context of caller 1132 * @param config The WiFi config. 1133 * @return true if the config is not editable through Settings. 1134 */ 1135 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1136 return !canModifyNetwork(context, config); 1137 } 1138 1139 /** 1140 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1141 * TODO: refactor to have only one method. 1142 * @param context Context of caller 1143 * @param config The WiFi config. 1144 * @return true if Settings can modify the config. 1145 */ 1146 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1147 if (config == null) { 1148 return true; 1149 } 1150 1151 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1152 Context.DEVICE_POLICY_SERVICE); 1153 1154 // Check if device has DPM capability. If it has and dpm is still null, then we 1155 // treat this case with suspicion and bail out. 1156 final PackageManager pm = context.getPackageManager(); 1157 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1158 return false; 1159 } 1160 1161 boolean isConfigEligibleForLockdown = false; 1162 if (dpm != null) { 1163 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1164 if (deviceOwner != null) { 1165 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1166 try { 1167 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1168 deviceOwnerUserId); 1169 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1170 } catch (NameNotFoundException e) { 1171 // don't care 1172 } 1173 } 1174 } 1175 if (!isConfigEligibleForLockdown) { 1176 return true; 1177 } 1178 1179 final ContentResolver resolver = context.getContentResolver(); 1180 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1181 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1182 return !isLockdownFeatureEnabled; 1183 } 1184 1185 private static class SummaryProvider 1186 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1187 1188 private final Context mContext; 1189 private final SummaryLoader mSummaryLoader; 1190 1191 @VisibleForTesting 1192 WifiSummaryUpdater mSummaryHelper; 1193 1194 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1195 mContext = context; 1196 mSummaryLoader = summaryLoader; 1197 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1198 } 1199 1200 1201 @Override 1202 public void setListening(boolean listening) { 1203 mSummaryHelper.register(listening); 1204 } 1205 1206 @Override 1207 public void onSummaryChanged(String summary) { 1208 mSummaryLoader.setSummary(this, summary); 1209 } 1210 } 1211 1212 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1213 = new SummaryLoader.SummaryProviderFactory() { 1214 @Override 1215 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1216 SummaryLoader summaryLoader) { 1217 return new SummaryProvider(activity, summaryLoader); 1218 } 1219 }; 1220} 1221