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