1 /* 2 * Copyright (C) 2007 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; 18 19 import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 20 import static org.xmlpull.v1.XmlPullParser.END_TAG; 21 import static org.xmlpull.v1.XmlPullParser.START_TAG; 22 23 import android.app.ActivityManager; 24 import android.app.ActivityManagerNative; 25 import android.app.AppGlobals; 26 import android.app.AppOpsManager; 27 import android.app.IActivityManager; 28 import android.app.INotificationManager; 29 import android.app.ITransientNotification; 30 import android.app.Notification; 31 import android.app.PendingIntent; 32 import android.app.StatusBarManager; 33 import android.content.BroadcastReceiver; 34 import android.content.ComponentName; 35 import android.content.ContentResolver; 36 import android.content.Context; 37 import android.content.Intent; 38 import android.content.IntentFilter; 39 import android.content.ServiceConnection; 40 import android.content.pm.ApplicationInfo; 41 import android.content.pm.PackageInfo; 42 import android.content.pm.PackageManager; 43 import android.content.pm.ResolveInfo; 44 import android.content.pm.ServiceInfo; 45 import android.content.pm.PackageManager.NameNotFoundException; 46 import android.content.res.Resources; 47 import android.database.ContentObserver; 48 import android.graphics.Bitmap; 49 import android.media.AudioManager; 50 import android.media.IAudioService; 51 import android.media.IRingtonePlayer; 52 import android.net.Uri; 53 import android.os.Binder; 54 import android.os.Handler; 55 import android.os.IBinder; 56 import android.os.Message; 57 import android.os.Process; 58 import android.os.RemoteException; 59 import android.os.ServiceManager; 60 import android.os.UserHandle; 61 import android.os.UserManager; 62 import android.os.Vibrator; 63 import android.provider.Settings; 64 import android.service.notification.INotificationListener; 65 import android.service.notification.NotificationListenerService; 66 import android.service.notification.StatusBarNotification; 67 import android.telephony.TelephonyManager; 68 import android.text.TextUtils; 69 import android.util.AtomicFile; 70 import android.util.EventLog; 71 import android.util.Log; 72 import android.util.Slog; 73 import android.util.Xml; 74 import android.view.accessibility.AccessibilityEvent; 75 import android.view.accessibility.AccessibilityManager; 76 import android.widget.Toast; 77 78 import org.xmlpull.v1.XmlPullParser; 79 import org.xmlpull.v1.XmlPullParserException; 80 81 import java.io.File; 82 import java.io.FileDescriptor; 83 import java.io.FileInputStream; 84 import java.io.FileNotFoundException; 85 import java.io.IOException; 86 import java.io.PrintWriter; 87 import java.lang.reflect.Array; 88 import java.util.ArrayDeque; 89 import java.util.ArrayList; 90 import java.util.Arrays; 91 import java.util.HashSet; 92 import java.util.Iterator; 93 import java.util.List; 94 import java.util.NoSuchElementException; 95 import java.util.Set; 96 97 import libcore.io.IoUtils; 98 99 100 /** {@hide} */ 101 public class NotificationManagerService extends INotificationManager.Stub 102 { 103 private static final String TAG = "NotificationService"; 104 private static final boolean DBG = false; 105 106 private static final int MAX_PACKAGE_NOTIFICATIONS = 50; 107 108 // message codes 109 private static final int MESSAGE_TIMEOUT = 2; 110 111 private static final int LONG_DELAY = 3500; // 3.5 seconds 112 private static final int SHORT_DELAY = 2000; // 2 seconds 113 114 private static final long[] DEFAULT_VIBRATE_PATTERN = {0, 250, 250, 250}; 115 private static final int VIBRATE_PATTERN_MAXLEN = 8 * 2 + 1; // up to eight bumps 116 117 private static final int DEFAULT_STREAM_TYPE = AudioManager.STREAM_NOTIFICATION; 118 private static final boolean SCORE_ONGOING_HIGHER = false; 119 120 private static final int JUNK_SCORE = -1000; 121 private static final int NOTIFICATION_PRIORITY_MULTIPLIER = 10; 122 private static final int SCORE_DISPLAY_THRESHOLD = Notification.PRIORITY_MIN * NOTIFICATION_PRIORITY_MULTIPLIER; 123 124 // Notifications with scores below this will not interrupt the user, either via LED or 125 // sound or vibration 126 private static final int SCORE_INTERRUPTION_THRESHOLD = 127 Notification.PRIORITY_LOW * NOTIFICATION_PRIORITY_MULTIPLIER; 128 129 private static final boolean ENABLE_BLOCKED_NOTIFICATIONS = true; 130 private static final boolean ENABLE_BLOCKED_TOASTS = true; 131 132 private static final String ENABLED_NOTIFICATION_LISTENERS_SEPARATOR = ":"; 133 134 final Context mContext; 135 final IActivityManager mAm; 136 final UserManager mUserManager; 137 final IBinder mForegroundToken = new Binder(); 138 139 private WorkerHandler mHandler; 140 private StatusBarManagerService mStatusBar; 141 private LightsService.Light mNotificationLight; 142 private LightsService.Light mAttentionLight; 143 144 private int mDefaultNotificationColor; 145 private int mDefaultNotificationLedOn; 146 private int mDefaultNotificationLedOff; 147 148 private long[] mDefaultVibrationPattern; 149 private long[] mFallbackVibrationPattern; 150 151 private boolean mSystemReady; 152 private int mDisabledNotifications; 153 154 private NotificationRecord mSoundNotification; 155 private NotificationRecord mVibrateNotification; 156 157 private IAudioService mAudioService; 158 private Vibrator mVibrator; 159 160 // for enabling and disabling notification pulse behavior 161 private boolean mScreenOn = true; 162 private boolean mInCall = false; 163 private boolean mNotificationPulseEnabled; 164 165 // used as a mutex for access to all active notifications & listeners 166 private final ArrayList<NotificationRecord> mNotificationList = 167 new ArrayList<NotificationRecord>(); 168 169 private ArrayList<ToastRecord> mToastQueue; 170 171 private ArrayList<NotificationRecord> mLights = new ArrayList<NotificationRecord>(); 172 private NotificationRecord mLedNotification; 173 174 private final AppOpsManager mAppOps; 175 176 // contains connections to all connected listeners, including app services 177 // and system listeners 178 private ArrayList<NotificationListenerInfo> mListeners 179 = new ArrayList<NotificationListenerInfo>(); 180 // things that will be put into mListeners as soon as they're ready 181 private ArrayList<String> mServicesBinding = new ArrayList<String>(); 182 // lists the component names of all enabled (and therefore connected) listener 183 // app services for the current user only 184 private HashSet<ComponentName> mEnabledListenersForCurrentUser 185 = new HashSet<ComponentName>(); 186 // Just the packages from mEnabledListenersForCurrentUser 187 private HashSet<String> mEnabledListenerPackageNames = new HashSet<String>(); 188 189 // Notification control database. For now just contains disabled packages. 190 private AtomicFile mPolicyFile; 191 private HashSet<String> mBlockedPackages = new HashSet<String>(); 192 193 private static final int DB_VERSION = 1; 194 195 private static final String TAG_BODY = "notification-policy"; 196 private static final String ATTR_VERSION = "version"; 197 198 private static final String TAG_BLOCKED_PKGS = "blocked-packages"; 199 private static final String TAG_PACKAGE = "package"; 200 private static final String ATTR_NAME = "name"; 201 202 private class NotificationListenerInfo implements DeathRecipient { 203 INotificationListener listener; 204 ComponentName component; 205 int userid; 206 boolean isSystem; 207 ServiceConnection connection; 208 209 public NotificationListenerInfo(INotificationListener listener, ComponentName component, 210 int userid, boolean isSystem) { 211 this.listener = listener; 212 this.component = component; 213 this.userid = userid; 214 this.isSystem = isSystem; 215 this.connection = null; 216 } 217 218 public NotificationListenerInfo(INotificationListener listener, ComponentName component, 219 int userid, ServiceConnection connection) { 220 this.listener = listener; 221 this.component = component; 222 this.userid = userid; 223 this.isSystem = false; 224 this.connection = connection; 225 } 226 227 boolean enabledAndUserMatches(StatusBarNotification sbn) { 228 final int nid = sbn.getUserId(); 229 if (!isEnabledForCurrentUser()) { 230 return false; 231 } 232 if (this.userid == UserHandle.USER_ALL) return true; 233 return (nid == UserHandle.USER_ALL || nid == this.userid); 234 } 235 236 public void notifyPostedIfUserMatch(StatusBarNotification sbn) { 237 if (!enabledAndUserMatches(sbn)) { 238 return; 239 } 240 try { 241 listener.onNotificationPosted(sbn); 242 } catch (RemoteException ex) { 243 Log.e(TAG, "unable to notify listener (posted): " + listener, ex); 244 } 245 } 246 247 public void notifyRemovedIfUserMatch(StatusBarNotification sbn) { 248 if (!enabledAndUserMatches(sbn)) return; 249 try { 250 listener.onNotificationRemoved(sbn); 251 } catch (RemoteException ex) { 252 Log.e(TAG, "unable to notify listener (removed): " + listener, ex); 253 } 254 } 255 256 @Override 257 public void binderDied() { 258 if (connection == null) { 259 // This is not a service; it won't be recreated. We can give up this connection. 260 unregisterListener(this.listener, this.userid); 261 } 262 } 263 264 /** convenience method for looking in mEnabledListenersForCurrentUser */ 265 public boolean isEnabledForCurrentUser() { 266 if (this.isSystem) return true; 267 if (this.connection == null) return false; 268 return mEnabledListenersForCurrentUser.contains(this.component); 269 } 270 } 271 272 private static class Archive { 273 static final int BUFFER_SIZE = 250; 274 ArrayDeque<StatusBarNotification> mBuffer = new ArrayDeque<StatusBarNotification>(BUFFER_SIZE); 275 276 public Archive() { 277 } 278 279 public String toString() { 280 final StringBuilder sb = new StringBuilder(); 281 final int N = mBuffer.size(); 282 sb.append("Archive ("); 283 sb.append(N); 284 sb.append(" notification"); 285 sb.append((N==1)?")":"s)"); 286 return sb.toString(); 287 } 288 289 public void record(StatusBarNotification nr) { 290 if (mBuffer.size() == BUFFER_SIZE) { 291 mBuffer.removeFirst(); 292 } 293 294 // We don't want to store the heavy bits of the notification in the archive, 295 // but other clients in the system process might be using the object, so we 296 // store a (lightened) copy. 297 mBuffer.addLast(nr.cloneLight()); 298 } 299 300 301 public void clear() { 302 mBuffer.clear(); 303 } 304 305 public Iterator<StatusBarNotification> descendingIterator() { 306 return mBuffer.descendingIterator(); 307 } 308 public Iterator<StatusBarNotification> ascendingIterator() { 309 return mBuffer.iterator(); 310 } 311 public Iterator<StatusBarNotification> filter( 312 final Iterator<StatusBarNotification> iter, final String pkg, final int userId) { 313 return new Iterator<StatusBarNotification>() { 314 StatusBarNotification mNext = findNext(); 315 316 private StatusBarNotification findNext() { 317 while (iter.hasNext()) { 318 StatusBarNotification nr = iter.next(); 319 if ((pkg == null || nr.getPackageName() == pkg) 320 && (userId == UserHandle.USER_ALL || nr.getUserId() == userId)) { 321 return nr; 322 } 323 } 324 return null; 325 } 326 327 @Override 328 public boolean hasNext() { 329 return mNext == null; 330 } 331 332 @Override 333 public StatusBarNotification next() { 334 StatusBarNotification next = mNext; 335 if (next == null) { 336 throw new NoSuchElementException(); 337 } 338 mNext = findNext(); 339 return next; 340 } 341 342 @Override 343 public void remove() { 344 iter.remove(); 345 } 346 }; 347 } 348 349 public StatusBarNotification[] getArray(int count) { 350 if (count == 0) count = Archive.BUFFER_SIZE; 351 final StatusBarNotification[] a 352 = new StatusBarNotification[Math.min(count, mBuffer.size())]; 353 Iterator<StatusBarNotification> iter = descendingIterator(); 354 int i=0; 355 while (iter.hasNext() && i < count) { 356 a[i++] = iter.next(); 357 } 358 return a; 359 } 360 361 public StatusBarNotification[] getArray(int count, String pkg, int userId) { 362 if (count == 0) count = Archive.BUFFER_SIZE; 363 final StatusBarNotification[] a 364 = new StatusBarNotification[Math.min(count, mBuffer.size())]; 365 Iterator<StatusBarNotification> iter = filter(descendingIterator(), pkg, userId); 366 int i=0; 367 while (iter.hasNext() && i < count) { 368 a[i++] = iter.next(); 369 } 370 return a; 371 } 372 373 } 374 375 Archive mArchive = new Archive(); 376 377 private void loadBlockDb() { 378 synchronized(mBlockedPackages) { 379 if (mPolicyFile == null) { 380 File dir = new File("/data/system"); 381 mPolicyFile = new AtomicFile(new File(dir, "notification_policy.xml")); 382 383 mBlockedPackages.clear(); 384 385 FileInputStream infile = null; 386 try { 387 infile = mPolicyFile.openRead(); 388 final XmlPullParser parser = Xml.newPullParser(); 389 parser.setInput(infile, null); 390 391 int type; 392 String tag; 393 int version = DB_VERSION; 394 while ((type = parser.next()) != END_DOCUMENT) { 395 tag = parser.getName(); 396 if (type == START_TAG) { 397 if (TAG_BODY.equals(tag)) { 398 version = Integer.parseInt(parser.getAttributeValue(null, ATTR_VERSION)); 399 } else if (TAG_BLOCKED_PKGS.equals(tag)) { 400 while ((type = parser.next()) != END_DOCUMENT) { 401 tag = parser.getName(); 402 if (TAG_PACKAGE.equals(tag)) { 403 mBlockedPackages.add(parser.getAttributeValue(null, ATTR_NAME)); 404 } else if (TAG_BLOCKED_PKGS.equals(tag) && type == END_TAG) { 405 break; 406 } 407 } 408 } 409 } 410 } 411 } catch (FileNotFoundException e) { 412 // No data yet 413 } catch (IOException e) { 414 Log.wtf(TAG, "Unable to read blocked notifications database", e); 415 } catch (NumberFormatException e) { 416 Log.wtf(TAG, "Unable to parse blocked notifications database", e); 417 } catch (XmlPullParserException e) { 418 Log.wtf(TAG, "Unable to parse blocked notifications database", e); 419 } finally { 420 IoUtils.closeQuietly(infile); 421 } 422 } 423 } 424 } 425 426 /** 427 * Use this when you just want to know if notifications are OK for this package. 428 */ 429 public boolean areNotificationsEnabledForPackage(String pkg, int uid) { 430 checkCallerIsSystem(); 431 return (mAppOps.checkOpNoThrow(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg) 432 == AppOpsManager.MODE_ALLOWED); 433 } 434 435 /** Use this when you actually want to post a notification or toast. 436 * 437 * Unchecked. Not exposed via Binder, but can be called in the course of enqueue*(). 438 */ 439 private boolean noteNotificationOp(String pkg, int uid) { 440 if (mAppOps.noteOpNoThrow(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg) 441 != AppOpsManager.MODE_ALLOWED) { 442 Slog.v(TAG, "notifications are disabled by AppOps for " + pkg); 443 return false; 444 } 445 return true; 446 } 447 448 public void setNotificationsEnabledForPackage(String pkg, int uid, boolean enabled) { 449 checkCallerIsSystem(); 450 451 Slog.v(TAG, (enabled?"en":"dis") + "abling notifications for " + pkg); 452 453 mAppOps.setMode(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg, 454 enabled ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED); 455 456 // Now, cancel any outstanding notifications that are part of a just-disabled app 457 if (ENABLE_BLOCKED_NOTIFICATIONS && !enabled) { 458 cancelAllNotificationsInt(pkg, 0, 0, true, UserHandle.getUserId(uid)); 459 } 460 } 461 462 463 private static String idDebugString(Context baseContext, String packageName, int id) { 464 Context c = null; 465 466 if (packageName != null) { 467 try { 468 c = baseContext.createPackageContext(packageName, 0); 469 } catch (NameNotFoundException e) { 470 c = baseContext; 471 } 472 } else { 473 c = baseContext; 474 } 475 476 String pkg; 477 String type; 478 String name; 479 480 Resources r = c.getResources(); 481 try { 482 return r.getResourceName(id); 483 } catch (Resources.NotFoundException e) { 484 return "<name unknown>"; 485 } 486 } 487 488 /** 489 * System-only API for getting a list of current (i.e. not cleared) notifications. 490 * 491 * Requires ACCESS_NOTIFICATIONS which is signature|system. 492 */ 493 @Override 494 public StatusBarNotification[] getActiveNotifications(String callingPkg) { 495 // enforce() will ensure the calling uid has the correct permission 496 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NOTIFICATIONS, 497 "NotificationManagerService.getActiveNotifications"); 498 499 StatusBarNotification[] tmp = null; 500 int uid = Binder.getCallingUid(); 501 502 // noteOp will check to make sure the callingPkg matches the uid 503 if (mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_NOTIFICATIONS, uid, callingPkg) 504 == AppOpsManager.MODE_ALLOWED) { 505 synchronized (mNotificationList) { 506 tmp = new StatusBarNotification[mNotificationList.size()]; 507 final int N = mNotificationList.size(); 508 for (int i=0; i<N; i++) { 509 tmp[i] = mNotificationList.get(i).sbn; 510 } 511 } 512 } 513 return tmp; 514 } 515 516 /** 517 * System-only API for getting a list of recent (cleared, no longer shown) notifications. 518 * 519 * Requires ACCESS_NOTIFICATIONS which is signature|system. 520 */ 521 @Override 522 public StatusBarNotification[] getHistoricalNotifications(String callingPkg, int count) { 523 // enforce() will ensure the calling uid has the correct permission 524 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NOTIFICATIONS, 525 "NotificationManagerService.getHistoricalNotifications"); 526 527 StatusBarNotification[] tmp = null; 528 int uid = Binder.getCallingUid(); 529 530 // noteOp will check to make sure the callingPkg matches the uid 531 if (mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_NOTIFICATIONS, uid, callingPkg) 532 == AppOpsManager.MODE_ALLOWED) { 533 synchronized (mArchive) { 534 tmp = mArchive.getArray(count); 535 } 536 } 537 return tmp; 538 } 539 540 /** 541 * Remove notification access for any services that no longer exist. 542 */ 543 void disableNonexistentListeners() { 544 int currentUser = ActivityManager.getCurrentUser(); 545 String flatIn = Settings.Secure.getStringForUser( 546 mContext.getContentResolver(), 547 Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, 548 currentUser); 549 if (!TextUtils.isEmpty(flatIn)) { 550 if (DBG) Slog.v(TAG, "flat before: " + flatIn); 551 PackageManager pm = mContext.getPackageManager(); 552 List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser( 553 new Intent(NotificationListenerService.SERVICE_INTERFACE), 554 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, 555 currentUser); 556 557 Set<ComponentName> installed = new HashSet<ComponentName>(); 558 for (int i = 0, count = installedServices.size(); i < count; i++) { 559 ResolveInfo resolveInfo = installedServices.get(i); 560 ServiceInfo info = resolveInfo.serviceInfo; 561 562 if (!android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE.equals( 563 info.permission)) { 564 Slog.w(TAG, "Skipping notification listener service " 565 + info.packageName + "/" + info.name 566 + ": it does not require the permission " 567 + android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE); 568 continue; 569 } 570 installed.add(new ComponentName(info.packageName, info.name)); 571 } 572 573 String flatOut = ""; 574 if (!installed.isEmpty()) { 575 String[] enabled = flatIn.split(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR); 576 ArrayList<String> remaining = new ArrayList<String>(enabled.length); 577 for (int i = 0; i < enabled.length; i++) { 578 ComponentName enabledComponent = ComponentName.unflattenFromString(enabled[i]); 579 if (installed.contains(enabledComponent)) { 580 remaining.add(enabled[i]); 581 } 582 } 583 flatOut = TextUtils.join(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR, remaining); 584 } 585 if (DBG) Slog.v(TAG, "flat after: " + flatOut); 586 if (!flatIn.equals(flatOut)) { 587 Settings.Secure.putStringForUser(mContext.getContentResolver(), 588 Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, 589 flatOut, currentUser); 590 } 591 } 592 } 593 594 /** 595 * Called whenever packages change, the user switches, or ENABLED_NOTIFICATION_LISTENERS 596 * is altered. (For example in response to USER_SWITCHED in our broadcast receiver) 597 */ 598 void rebindListenerServices() { 599 final int currentUser = ActivityManager.getCurrentUser(); 600 String flat = Settings.Secure.getStringForUser( 601 mContext.getContentResolver(), 602 Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, 603 currentUser); 604 605 NotificationListenerInfo[] toRemove = new NotificationListenerInfo[mListeners.size()]; 606 final ArrayList<ComponentName> toAdd; 607 608 synchronized (mNotificationList) { 609 // unbind and remove all existing listeners 610 toRemove = mListeners.toArray(toRemove); 611 612 toAdd = new ArrayList<ComponentName>(); 613 final HashSet<ComponentName> newEnabled = new HashSet<ComponentName>(); 614 final HashSet<String> newPackages = new HashSet<String>(); 615 616 // decode the list of components 617 if (flat != null) { 618 String[] components = flat.split(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR); 619 for (int i=0; i<components.length; i++) { 620 final ComponentName component 621 = ComponentName.unflattenFromString(components[i]); 622 if (component != null) { 623 newEnabled.add(component); 624 toAdd.add(component); 625 newPackages.add(component.getPackageName()); 626 } 627 } 628 629 mEnabledListenersForCurrentUser = newEnabled; 630 mEnabledListenerPackageNames = newPackages; 631 } 632 } 633 634 for (NotificationListenerInfo info : toRemove) { 635 final ComponentName component = info.component; 636 final int oldUser = info.userid; 637 Slog.v(TAG, "disabling notification listener for user " + oldUser + ": " + component); 638 unregisterListenerService(component, info.userid); 639 } 640 641 final int N = toAdd.size(); 642 for (int i=0; i<N; i++) { 643 final ComponentName component = toAdd.get(i); 644 Slog.v(TAG, "enabling notification listener for user " + currentUser + ": " 645 + component); 646 registerListenerService(component, currentUser); 647 } 648 } 649 650 /** 651 * Register a listener binder directly with the notification manager. 652 * 653 * Only works with system callers. Apps should extend 654 * {@link android.service.notification.NotificationListenerService}. 655 */ 656 @Override 657 public void registerListener(final INotificationListener listener, 658 final ComponentName component, final int userid) { 659 checkCallerIsSystem(); 660 661 synchronized (mNotificationList) { 662 try { 663 NotificationListenerInfo info 664 = new NotificationListenerInfo(listener, component, userid, true); 665 listener.asBinder().linkToDeath(info, 0); 666 mListeners.add(info); 667 } catch (RemoteException e) { 668 // already dead 669 } 670 } 671 } 672 673 /** 674 * Version of registerListener that takes the name of a 675 * {@link android.service.notification.NotificationListenerService} to bind to. 676 * 677 * This is the mechanism by which third parties may subscribe to notifications. 678 */ 679 private void registerListenerService(final ComponentName name, final int userid) { 680 checkCallerIsSystem(); 681 682 if (DBG) Slog.v(TAG, "registerListenerService: " + name + " u=" + userid); 683 684 synchronized (mNotificationList) { 685 final String servicesBindingTag = name.toString() + "/" + userid; 686 if (mServicesBinding.contains(servicesBindingTag)) { 687 // stop registering this thing already! we're working on it 688 return; 689 } 690 mServicesBinding.add(servicesBindingTag); 691 692 final int N = mListeners.size(); 693 for (int i=N-1; i>=0; i--) { 694 final NotificationListenerInfo info = mListeners.get(i); 695 if (name.equals(info.component) 696 && info.userid == userid) { 697 // cut old connections 698 if (DBG) Slog.v(TAG, " disconnecting old listener: " + info.listener); 699 mListeners.remove(i); 700 if (info.connection != null) { 701 mContext.unbindService(info.connection); 702 } 703 } 704 } 705 706 Intent intent = new Intent(NotificationListenerService.SERVICE_INTERFACE); 707 intent.setComponent(name); 708 709 intent.putExtra(Intent.EXTRA_CLIENT_LABEL, 710 com.android.internal.R.string.notification_listener_binding_label); 711 intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivity( 712 mContext, 0, new Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS), 0)); 713 714 try { 715 if (DBG) Slog.v(TAG, "binding: " + intent); 716 if (!mContext.bindServiceAsUser(intent, 717 new ServiceConnection() { 718 INotificationListener mListener; 719 @Override 720 public void onServiceConnected(ComponentName name, IBinder service) { 721 synchronized (mNotificationList) { 722 mServicesBinding.remove(servicesBindingTag); 723 try { 724 mListener = INotificationListener.Stub.asInterface(service); 725 NotificationListenerInfo info = new NotificationListenerInfo( 726 mListener, name, userid, this); 727 service.linkToDeath(info, 0); 728 mListeners.add(info); 729 } catch (RemoteException e) { 730 // already dead 731 } 732 } 733 } 734 735 @Override 736 public void onServiceDisconnected(ComponentName name) { 737 Slog.v(TAG, "notification listener connection lost: " + name); 738 } 739 }, 740 Context.BIND_AUTO_CREATE, 741 new UserHandle(userid))) 742 { 743 mServicesBinding.remove(servicesBindingTag); 744 Slog.w(TAG, "Unable to bind listener service: " + intent); 745 return; 746 } 747 } catch (SecurityException ex) { 748 Slog.e(TAG, "Unable to bind listener service: " + intent, ex); 749 return; 750 } 751 } 752 } 753 754 /** 755 * Remove a listener binder directly 756 */ 757 @Override 758 public void unregisterListener(INotificationListener listener, int userid) { 759 // no need to check permissions; if your listener binder is in the list, 760 // that's proof that you had permission to add it in the first place 761 762 synchronized (mNotificationList) { 763 final int N = mListeners.size(); 764 for (int i=N-1; i>=0; i--) { 765 final NotificationListenerInfo info = mListeners.get(i); 766 if (info.listener.asBinder() == listener.asBinder() 767 && info.userid == userid) { 768 mListeners.remove(i); 769 if (info.connection != null) { 770 mContext.unbindService(info.connection); 771 } 772 } 773 } 774 } 775 } 776 777 /** 778 * Remove a listener service for the given user by ComponentName 779 */ 780 private void unregisterListenerService(ComponentName name, int userid) { 781 checkCallerIsSystem(); 782 783 synchronized (mNotificationList) { 784 final int N = mListeners.size(); 785 for (int i=N-1; i>=0; i--) { 786 final NotificationListenerInfo info = mListeners.get(i); 787 if (name.equals(info.component) 788 && info.userid == userid) { 789 mListeners.remove(i); 790 if (info.connection != null) { 791 try { 792 mContext.unbindService(info.connection); 793 } catch (IllegalArgumentException ex) { 794 // something happened to the service: we think we have a connection 795 // but it's bogus. 796 Slog.e(TAG, "Listener " + name + " could not be unbound: " + ex); 797 } 798 } 799 } 800 } 801 } 802 } 803 804 /** 805 * asynchronously notify all listeners about a new notification 806 */ 807 private void notifyPostedLocked(NotificationRecord n) { 808 // make a copy in case changes are made to the underlying Notification object 809 final StatusBarNotification sbn = n.sbn.clone(); 810 for (final NotificationListenerInfo info : mListeners) { 811 mHandler.post(new Runnable() { 812 @Override 813 public void run() { 814 info.notifyPostedIfUserMatch(sbn); 815 }}); 816 } 817 } 818 819 /** 820 * asynchronously notify all listeners about a removed notification 821 */ 822 private void notifyRemovedLocked(NotificationRecord n) { 823 // make a copy in case changes are made to the underlying Notification object 824 // NOTE: this copy is lightweight: it doesn't include heavyweight parts of the notification 825 final StatusBarNotification sbn_light = n.sbn.cloneLight(); 826 827 for (final NotificationListenerInfo info : mListeners) { 828 mHandler.post(new Runnable() { 829 @Override 830 public void run() { 831 info.notifyRemovedIfUserMatch(sbn_light); 832 }}); 833 } 834 } 835 836 // -- APIs to support listeners clicking/clearing notifications -- 837 838 private NotificationListenerInfo checkListenerToken(INotificationListener listener) { 839 final IBinder token = listener.asBinder(); 840 final int N = mListeners.size(); 841 for (int i=0; i<N; i++) { 842 final NotificationListenerInfo info = mListeners.get(i); 843 if (info.listener.asBinder() == token) return info; 844 } 845 throw new SecurityException("Disallowed call from unknown listener: " + listener); 846 } 847 848 /** 849 * Allow an INotificationListener to simulate a "clear all" operation. 850 * 851 * {@see com.android.server.StatusBarManagerService.NotificationCallbacks#onClearAllNotifications} 852 * 853 * @param token The binder for the listener, to check that the caller is allowed 854 */ 855 public void cancelAllNotificationsFromListener(INotificationListener token) { 856 NotificationListenerInfo info = checkListenerToken(token); 857 long identity = Binder.clearCallingIdentity(); 858 try { 859 cancelAll(info.userid); 860 } finally { 861 Binder.restoreCallingIdentity(identity); 862 } 863 } 864 865 /** 866 * Allow an INotificationListener to simulate clearing (dismissing) a single notification. 867 * 868 * {@see com.android.server.StatusBarManagerService.NotificationCallbacks#onNotificationClear} 869 * 870 * @param token The binder for the listener, to check that the caller is allowed 871 */ 872 public void cancelNotificationFromListener(INotificationListener token, String pkg, String tag, int id) { 873 NotificationListenerInfo info = checkListenerToken(token); 874 long identity = Binder.clearCallingIdentity(); 875 try { 876 cancelNotification(pkg, tag, id, 0, 877 Notification.FLAG_ONGOING_EVENT | Notification.FLAG_FOREGROUND_SERVICE, 878 true, 879 info.userid); 880 } finally { 881 Binder.restoreCallingIdentity(identity); 882 } 883 } 884 885 /** 886 * Allow an INotificationListener to request the list of outstanding notifications seen by 887 * the current user. Useful when starting up, after which point the listener callbacks should 888 * be used. 889 * 890 * @param token The binder for the listener, to check that the caller is allowed 891 */ 892 public StatusBarNotification[] getActiveNotificationsFromListener(INotificationListener token) { 893 NotificationListenerInfo info = checkListenerToken(token); 894 895 StatusBarNotification[] result = new StatusBarNotification[0]; 896 ArrayList<StatusBarNotification> list = new ArrayList<StatusBarNotification>(); 897 synchronized (mNotificationList) { 898 final int N = mNotificationList.size(); 899 for (int i=0; i<N; i++) { 900 StatusBarNotification sbn = mNotificationList.get(i).sbn; 901 if (info.enabledAndUserMatches(sbn)) { 902 list.add(sbn); 903 } 904 } 905 } 906 return list.toArray(result); 907 } 908 909 // -- end of listener APIs -- 910 911 public static final class NotificationRecord 912 { 913 final StatusBarNotification sbn; 914 IBinder statusBarKey; 915 916 NotificationRecord(StatusBarNotification sbn) 917 { 918 this.sbn = sbn; 919 } 920 921 public Notification getNotification() { return sbn.getNotification(); } 922 public int getFlags() { return sbn.getNotification().flags; } 923 public int getUserId() { return sbn.getUserId(); } 924 925 void dump(PrintWriter pw, String prefix, Context baseContext) { 926 final Notification notification = sbn.getNotification(); 927 pw.println(prefix + this); 928 pw.println(prefix + " uid=" + sbn.getUid() + " userId=" + sbn.getUserId()); 929 pw.println(prefix + " icon=0x" + Integer.toHexString(notification.icon) 930 + " / " + idDebugString(baseContext, sbn.getPackageName(), notification.icon)); 931 pw.println(prefix + " pri=" + notification.priority + " score=" + sbn.getScore()); 932 pw.println(prefix + " contentIntent=" + notification.contentIntent); 933 pw.println(prefix + " deleteIntent=" + notification.deleteIntent); 934 pw.println(prefix + " tickerText=" + notification.tickerText); 935 pw.println(prefix + " contentView=" + notification.contentView); 936 pw.println(prefix + String.format(" defaults=0x%08x flags=0x%08x", 937 notification.defaults, notification.flags)); 938 pw.println(prefix + " sound=" + notification.sound); 939 pw.println(prefix + " vibrate=" + Arrays.toString(notification.vibrate)); 940 pw.println(prefix + String.format(" led=0x%08x onMs=%d offMs=%d", 941 notification.ledARGB, notification.ledOnMS, notification.ledOffMS)); 942 if (notification.actions != null && notification.actions.length > 0) { 943 pw.println(prefix + " actions={"); 944 final int N = notification.actions.length; 945 for (int i=0; i<N; i++) { 946 final Notification.Action action = notification.actions[i]; 947 pw.println(String.format("%s [%d] \"%s\" -> %s", 948 prefix, 949 i, 950 action.title, 951 action.actionIntent.toString() 952 )); 953 } 954 pw.println(prefix + " }"); 955 } 956 if (notification.extras != null && notification.extras.size() > 0) { 957 pw.println(prefix + " extras={"); 958 for (String key : notification.extras.keySet()) { 959 pw.print(prefix + " " + key + "="); 960 Object val = notification.extras.get(key); 961 if (val == null) { 962 pw.println("null"); 963 } else { 964 pw.print(val.toString()); 965 if (val instanceof Bitmap) { 966 pw.print(String.format(" (%dx%d)", 967 ((Bitmap) val).getWidth(), 968 ((Bitmap) val).getHeight())); 969 } else if (val.getClass().isArray()) { 970 pw.println(" {"); 971 final int N = Array.getLength(val); 972 for (int i=0; i<N; i++) { 973 if (i > 0) pw.println(","); 974 pw.print(prefix + " " + Array.get(val, i)); 975 } 976 pw.print("\n" + prefix + " }"); 977 } 978 pw.println(); 979 } 980 } 981 pw.println(prefix + " }"); 982 } 983 } 984 985 @Override 986 public final String toString() { 987 return String.format( 988 "NotificationRecord(0x%08x: pkg=%s user=%s id=%d tag=%s score=%d: %s)", 989 System.identityHashCode(this), 990 this.sbn.getPackageName(), this.sbn.getUser(), this.sbn.getId(), this.sbn.getTag(), 991 this.sbn.getScore(), this.sbn.getNotification()); 992 } 993 } 994 995 private static final class ToastRecord 996 { 997 final int pid; 998 final String pkg; 999 final ITransientNotification callback; 1000 int duration; 1001 1002 ToastRecord(int pid, String pkg, ITransientNotification callback, int duration) 1003 { 1004 this.pid = pid; 1005 this.pkg = pkg; 1006 this.callback = callback; 1007 this.duration = duration; 1008 } 1009 1010 void update(int duration) { 1011 this.duration = duration; 1012 } 1013 1014 void dump(PrintWriter pw, String prefix) { 1015 pw.println(prefix + this); 1016 } 1017 1018 @Override 1019 public final String toString() 1020 { 1021 return "ToastRecord{" 1022 + Integer.toHexString(System.identityHashCode(this)) 1023 + " pkg=" + pkg 1024 + " callback=" + callback 1025 + " duration=" + duration; 1026 } 1027 } 1028 1029 private StatusBarManagerService.NotificationCallbacks mNotificationCallbacks 1030 = new StatusBarManagerService.NotificationCallbacks() { 1031 1032 public void onSetDisabled(int status) { 1033 synchronized (mNotificationList) { 1034 mDisabledNotifications = status; 1035 if ((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) != 0) { 1036 // cancel whatever's going on 1037 long identity = Binder.clearCallingIdentity(); 1038 try { 1039 final IRingtonePlayer player = mAudioService.getRingtonePlayer(); 1040 if (player != null) { 1041 player.stopAsync(); 1042 } 1043 } catch (RemoteException e) { 1044 } finally { 1045 Binder.restoreCallingIdentity(identity); 1046 } 1047 1048 identity = Binder.clearCallingIdentity(); 1049 try { 1050 mVibrator.cancel(); 1051 } finally { 1052 Binder.restoreCallingIdentity(identity); 1053 } 1054 } 1055 } 1056 } 1057 1058 public void onClearAll() { 1059 // XXX to be totally correct, the caller should tell us which user 1060 // this is for. 1061 cancelAll(ActivityManager.getCurrentUser()); 1062 } 1063 1064 public void onNotificationClick(String pkg, String tag, int id) { 1065 // XXX to be totally correct, the caller should tell us which user 1066 // this is for. 1067 cancelNotification(pkg, tag, id, Notification.FLAG_AUTO_CANCEL, 1068 Notification.FLAG_FOREGROUND_SERVICE, false, 1069 ActivityManager.getCurrentUser()); 1070 } 1071 1072 public void onNotificationClear(String pkg, String tag, int id) { 1073 // XXX to be totally correct, the caller should tell us which user 1074 // this is for. 1075 cancelNotification(pkg, tag, id, 0, 1076 Notification.FLAG_ONGOING_EVENT | Notification.FLAG_FOREGROUND_SERVICE, 1077 true, ActivityManager.getCurrentUser()); 1078 } 1079 1080 public void onPanelRevealed() { 1081 synchronized (mNotificationList) { 1082 // sound 1083 mSoundNotification = null; 1084 1085 long identity = Binder.clearCallingIdentity(); 1086 try { 1087 final IRingtonePlayer player = mAudioService.getRingtonePlayer(); 1088 if (player != null) { 1089 player.stopAsync(); 1090 } 1091 } catch (RemoteException e) { 1092 } finally { 1093 Binder.restoreCallingIdentity(identity); 1094 } 1095 1096 // vibrate 1097 mVibrateNotification = null; 1098 identity = Binder.clearCallingIdentity(); 1099 try { 1100 mVibrator.cancel(); 1101 } finally { 1102 Binder.restoreCallingIdentity(identity); 1103 } 1104 1105 // light 1106 mLights.clear(); 1107 mLedNotification = null; 1108 updateLightsLocked(); 1109 } 1110 } 1111 1112 public void onNotificationError(String pkg, String tag, int id, 1113 int uid, int initialPid, String message) { 1114 Slog.d(TAG, "onNotification error pkg=" + pkg + " tag=" + tag + " id=" + id 1115 + "; will crashApplication(uid=" + uid + ", pid=" + initialPid + ")"); 1116 // XXX to be totally correct, the caller should tell us which user 1117 // this is for. 1118 cancelNotification(pkg, tag, id, 0, 0, false, UserHandle.getUserId(uid)); 1119 long ident = Binder.clearCallingIdentity(); 1120 try { 1121 ActivityManagerNative.getDefault().crashApplication(uid, initialPid, pkg, 1122 "Bad notification posted from package " + pkg 1123 + ": " + message); 1124 } catch (RemoteException e) { 1125 } 1126 Binder.restoreCallingIdentity(ident); 1127 } 1128 }; 1129 1130 private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { 1131 @Override 1132 public void onReceive(Context context, Intent intent) { 1133 String action = intent.getAction(); 1134 1135 boolean queryRestart = false; 1136 boolean queryRemove = false; 1137 boolean packageChanged = false; 1138 boolean cancelNotifications = true; 1139 1140 if (action.equals(Intent.ACTION_PACKAGE_ADDED) 1141 || (queryRemove=action.equals(Intent.ACTION_PACKAGE_REMOVED)) 1142 || action.equals(Intent.ACTION_PACKAGE_RESTARTED) 1143 || (packageChanged=action.equals(Intent.ACTION_PACKAGE_CHANGED)) 1144 || (queryRestart=action.equals(Intent.ACTION_QUERY_PACKAGE_RESTART)) 1145 || action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 1146 String pkgList[] = null; 1147 boolean queryReplace = queryRemove && 1148 intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1149 if (DBG) Slog.i(TAG, "queryReplace=" + queryReplace); 1150 if (action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 1151 pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1152 } else if (queryRestart) { 1153 pkgList = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES); 1154 } else { 1155 Uri uri = intent.getData(); 1156 if (uri == null) { 1157 return; 1158 } 1159 String pkgName = uri.getSchemeSpecificPart(); 1160 if (pkgName == null) { 1161 return; 1162 } 1163 if (packageChanged) { 1164 // We cancel notifications for packages which have just been disabled 1165 final int enabled = mContext.getPackageManager() 1166 .getApplicationEnabledSetting(pkgName); 1167 if (enabled == PackageManager.COMPONENT_ENABLED_STATE_ENABLED 1168 || enabled == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT) { 1169 cancelNotifications = false; 1170 } 1171 } 1172 pkgList = new String[]{pkgName}; 1173 } 1174 1175 boolean anyListenersInvolved = false; 1176 if (pkgList != null && (pkgList.length > 0)) { 1177 for (String pkgName : pkgList) { 1178 if (cancelNotifications) { 1179 cancelAllNotificationsInt(pkgName, 0, 0, !queryRestart, 1180 UserHandle.USER_ALL); 1181 } 1182 if (mEnabledListenerPackageNames.contains(pkgName)) { 1183 anyListenersInvolved = true; 1184 } 1185 } 1186 } 1187 1188 if (anyListenersInvolved) { 1189 // if we're not replacing a package, clean up orphaned bits 1190 if (!queryReplace) { 1191 disableNonexistentListeners(); 1192 } 1193 // make sure we're still bound to any of our 1194 // listeners who may have just upgraded 1195 rebindListenerServices(); 1196 } 1197 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 1198 // Keep track of screen on/off state, but do not turn off the notification light 1199 // until user passes through the lock screen or views the notification. 1200 mScreenOn = true; 1201 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 1202 mScreenOn = false; 1203 } else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) { 1204 mInCall = (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals( 1205 TelephonyManager.EXTRA_STATE_OFFHOOK)); 1206 updateNotificationPulse(); 1207 } else if (action.equals(Intent.ACTION_USER_STOPPED)) { 1208 int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1); 1209 if (userHandle >= 0) { 1210 cancelAllNotificationsInt(null, 0, 0, true, userHandle); 1211 } 1212 } else if (action.equals(Intent.ACTION_USER_PRESENT)) { 1213 // turn off LED when user passes through lock screen 1214 mNotificationLight.turnOff(); 1215 } else if (action.equals(Intent.ACTION_USER_SWITCHED)) { 1216 // reload per-user settings 1217 mSettingsObserver.update(null); 1218 } 1219 } 1220 }; 1221 1222 class SettingsObserver extends ContentObserver { 1223 private final Uri NOTIFICATION_LIGHT_PULSE_URI 1224 = Settings.System.getUriFor(Settings.System.NOTIFICATION_LIGHT_PULSE); 1225 1226 private final Uri ENABLED_NOTIFICATION_LISTENERS_URI 1227 = Settings.Secure.getUriFor(Settings.Secure.ENABLED_NOTIFICATION_LISTENERS); 1228 1229 SettingsObserver(Handler handler) { 1230 super(handler); 1231 } 1232 1233 void observe() { 1234 ContentResolver resolver = mContext.getContentResolver(); 1235 resolver.registerContentObserver(NOTIFICATION_LIGHT_PULSE_URI, 1236 false, this, UserHandle.USER_ALL); 1237 resolver.registerContentObserver(ENABLED_NOTIFICATION_LISTENERS_URI, 1238 false, this, UserHandle.USER_ALL); 1239 update(null); 1240 } 1241 1242 @Override public void onChange(boolean selfChange, Uri uri) { 1243 update(uri); 1244 } 1245 1246 public void update(Uri uri) { 1247 ContentResolver resolver = mContext.getContentResolver(); 1248 if (uri == null || NOTIFICATION_LIGHT_PULSE_URI.equals(uri)) { 1249 boolean pulseEnabled = Settings.System.getInt(resolver, 1250 Settings.System.NOTIFICATION_LIGHT_PULSE, 0) != 0; 1251 if (mNotificationPulseEnabled != pulseEnabled) { 1252 mNotificationPulseEnabled = pulseEnabled; 1253 updateNotificationPulse(); 1254 } 1255 } 1256 if (uri == null || ENABLED_NOTIFICATION_LISTENERS_URI.equals(uri)) { 1257 rebindListenerServices(); 1258 } 1259 } 1260 } 1261 1262 private SettingsObserver mSettingsObserver; 1263 1264 static long[] getLongArray(Resources r, int resid, int maxlen, long[] def) { 1265 int[] ar = r.getIntArray(resid); 1266 if (ar == null) { 1267 return def; 1268 } 1269 final int len = ar.length > maxlen ? maxlen : ar.length; 1270 long[] out = new long[len]; 1271 for (int i=0; i<len; i++) { 1272 out[i] = ar[i]; 1273 } 1274 return out; 1275 } 1276 1277 NotificationManagerService(Context context, StatusBarManagerService statusBar, 1278 LightsService lights) 1279 { 1280 super(); 1281 mContext = context; 1282 mVibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE); 1283 mAm = ActivityManagerNative.getDefault(); 1284 mUserManager = (UserManager)context.getSystemService(Context.USER_SERVICE); 1285 mToastQueue = new ArrayList<ToastRecord>(); 1286 mHandler = new WorkerHandler(); 1287 1288 mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE); 1289 1290 importOldBlockDb(); 1291 1292 mStatusBar = statusBar; 1293 statusBar.setNotificationCallbacks(mNotificationCallbacks); 1294 1295 mNotificationLight = lights.getLight(LightsService.LIGHT_ID_NOTIFICATIONS); 1296 mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION); 1297 1298 Resources resources = mContext.getResources(); 1299 mDefaultNotificationColor = resources.getColor( 1300 com.android.internal.R.color.config_defaultNotificationColor); 1301 mDefaultNotificationLedOn = resources.getInteger( 1302 com.android.internal.R.integer.config_defaultNotificationLedOn); 1303 mDefaultNotificationLedOff = resources.getInteger( 1304 com.android.internal.R.integer.config_defaultNotificationLedOff); 1305 1306 mDefaultVibrationPattern = getLongArray(resources, 1307 com.android.internal.R.array.config_defaultNotificationVibePattern, 1308 VIBRATE_PATTERN_MAXLEN, 1309 DEFAULT_VIBRATE_PATTERN); 1310 1311 mFallbackVibrationPattern = getLongArray(resources, 1312 com.android.internal.R.array.config_notificationFallbackVibePattern, 1313 VIBRATE_PATTERN_MAXLEN, 1314 DEFAULT_VIBRATE_PATTERN); 1315 1316 // Don't start allowing notifications until the setup wizard has run once. 1317 // After that, including subsequent boots, init with notifications turned on. 1318 // This works on the first boot because the setup wizard will toggle this 1319 // flag at least once and we'll go back to 0 after that. 1320 if (0 == Settings.Global.getInt(mContext.getContentResolver(), 1321 Settings.Global.DEVICE_PROVISIONED, 0)) { 1322 mDisabledNotifications = StatusBarManager.DISABLE_NOTIFICATION_ALERTS; 1323 } 1324 1325 // register for various Intents 1326 IntentFilter filter = new IntentFilter(); 1327 filter.addAction(Intent.ACTION_SCREEN_ON); 1328 filter.addAction(Intent.ACTION_SCREEN_OFF); 1329 filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED); 1330 filter.addAction(Intent.ACTION_USER_PRESENT); 1331 filter.addAction(Intent.ACTION_USER_STOPPED); 1332 filter.addAction(Intent.ACTION_USER_SWITCHED); 1333 mContext.registerReceiver(mIntentReceiver, filter); 1334 IntentFilter pkgFilter = new IntentFilter(); 1335 pkgFilter.addAction(Intent.ACTION_PACKAGE_ADDED); 1336 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1337 pkgFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1338 pkgFilter.addAction(Intent.ACTION_PACKAGE_RESTARTED); 1339 pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART); 1340 pkgFilter.addDataScheme("package"); 1341 mContext.registerReceiver(mIntentReceiver, pkgFilter); 1342 IntentFilter sdFilter = new IntentFilter(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1343 mContext.registerReceiver(mIntentReceiver, sdFilter); 1344 1345 mSettingsObserver = new SettingsObserver(mHandler); 1346 mSettingsObserver.observe(); 1347 } 1348 1349 /** 1350 * Read the old XML-based app block database and import those blockages into the AppOps system. 1351 */ 1352 private void importOldBlockDb() { 1353 loadBlockDb(); 1354 1355 PackageManager pm = mContext.getPackageManager(); 1356 for (String pkg : mBlockedPackages) { 1357 PackageInfo info = null; 1358 try { 1359 info = pm.getPackageInfo(pkg, 0); 1360 setNotificationsEnabledForPackage(pkg, info.applicationInfo.uid, false); 1361 } catch (NameNotFoundException e) { 1362 // forget you 1363 } 1364 } 1365 mBlockedPackages.clear(); 1366 if (mPolicyFile != null) { 1367 mPolicyFile.delete(); 1368 } 1369 } 1370 1371 void systemReady() { 1372 mAudioService = IAudioService.Stub.asInterface( 1373 ServiceManager.getService(Context.AUDIO_SERVICE)); 1374 1375 // no beeping until we're basically done booting 1376 mSystemReady = true; 1377 1378 // make sure our listener services are properly bound 1379 rebindListenerServices(); 1380 } 1381 1382 // Toasts 1383 // ============================================================================ 1384 public void enqueueToast(String pkg, ITransientNotification callback, int duration) 1385 { 1386 if (DBG) Slog.i(TAG, "enqueueToast pkg=" + pkg + " callback=" + callback + " duration=" + duration); 1387 1388 if (pkg == null || callback == null) { 1389 Slog.e(TAG, "Not doing toast. pkg=" + pkg + " callback=" + callback); 1390 return ; 1391 } 1392 1393 final boolean isSystemToast = isCallerSystem() || ("android".equals(pkg)); 1394 1395 if (ENABLE_BLOCKED_TOASTS && !noteNotificationOp(pkg, Binder.getCallingUid())) { 1396 if (!isSystemToast) { 1397 Slog.e(TAG, "Suppressing toast from package " + pkg + " by user request."); 1398 return; 1399 } 1400 } 1401 1402 synchronized (mToastQueue) { 1403 int callingPid = Binder.getCallingPid(); 1404 long callingId = Binder.clearCallingIdentity(); 1405 try { 1406 ToastRecord record; 1407 int index = indexOfToastLocked(pkg, callback); 1408 // If it's already in the queue, we update it in place, we don't 1409 // move it to the end of the queue. 1410 if (index >= 0) { 1411 record = mToastQueue.get(index); 1412 record.update(duration); 1413 } else { 1414 // Limit the number of toasts that any given package except the android 1415 // package can enqueue. Prevents DOS attacks and deals with leaks. 1416 if (!isSystemToast) { 1417 int count = 0; 1418 final int N = mToastQueue.size(); 1419 for (int i=0; i<N; i++) { 1420 final ToastRecord r = mToastQueue.get(i); 1421 if (r.pkg.equals(pkg)) { 1422 count++; 1423 if (count >= MAX_PACKAGE_NOTIFICATIONS) { 1424 Slog.e(TAG, "Package has already posted " + count 1425 + " toasts. Not showing more. Package=" + pkg); 1426 return; 1427 } 1428 } 1429 } 1430 } 1431 1432 record = new ToastRecord(callingPid, pkg, callback, duration); 1433 mToastQueue.add(record); 1434 index = mToastQueue.size() - 1; 1435 keepProcessAliveLocked(callingPid); 1436 } 1437 // If it's at index 0, it's the current toast. It doesn't matter if it's 1438 // new or just been updated. Call back and tell it to show itself. 1439 // If the callback fails, this will remove it from the list, so don't 1440 // assume that it's valid after this. 1441 if (index == 0) { 1442 showNextToastLocked(); 1443 } 1444 } finally { 1445 Binder.restoreCallingIdentity(callingId); 1446 } 1447 } 1448 } 1449 1450 public void cancelToast(String pkg, ITransientNotification callback) { 1451 Slog.i(TAG, "cancelToast pkg=" + pkg + " callback=" + callback); 1452 1453 if (pkg == null || callback == null) { 1454 Slog.e(TAG, "Not cancelling notification. pkg=" + pkg + " callback=" + callback); 1455 return ; 1456 } 1457 1458 synchronized (mToastQueue) { 1459 long callingId = Binder.clearCallingIdentity(); 1460 try { 1461 int index = indexOfToastLocked(pkg, callback); 1462 if (index >= 0) { 1463 cancelToastLocked(index); 1464 } else { 1465 Slog.w(TAG, "Toast already cancelled. pkg=" + pkg + " callback=" + callback); 1466 } 1467 } finally { 1468 Binder.restoreCallingIdentity(callingId); 1469 } 1470 } 1471 } 1472 1473 private void showNextToastLocked() { 1474 ToastRecord record = mToastQueue.get(0); 1475 while (record != null) { 1476 if (DBG) Slog.d(TAG, "Show pkg=" + record.pkg + " callback=" + record.callback); 1477 try { 1478 record.callback.show(); 1479 scheduleTimeoutLocked(record, false); 1480 return; 1481 } catch (RemoteException e) { 1482 Slog.w(TAG, "Object died trying to show notification " + record.callback 1483 + " in package " + record.pkg); 1484 // remove it from the list and let the process die 1485 int index = mToastQueue.indexOf(record); 1486 if (index >= 0) { 1487 mToastQueue.remove(index); 1488 } 1489 keepProcessAliveLocked(record.pid); 1490 if (mToastQueue.size() > 0) { 1491 record = mToastQueue.get(0); 1492 } else { 1493 record = null; 1494 } 1495 } 1496 } 1497 } 1498 1499 private void cancelToastLocked(int index) { 1500 ToastRecord record = mToastQueue.get(index); 1501 try { 1502 record.callback.hide(); 1503 } catch (RemoteException e) { 1504 Slog.w(TAG, "Object died trying to hide notification " + record.callback 1505 + " in package " + record.pkg); 1506 // don't worry about this, we're about to remove it from 1507 // the list anyway 1508 } 1509 mToastQueue.remove(index); 1510 keepProcessAliveLocked(record.pid); 1511 if (mToastQueue.size() > 0) { 1512 // Show the next one. If the callback fails, this will remove 1513 // it from the list, so don't assume that the list hasn't changed 1514 // after this point. 1515 showNextToastLocked(); 1516 } 1517 } 1518 1519 private void scheduleTimeoutLocked(ToastRecord r, boolean immediate) 1520 { 1521 Message m = Message.obtain(mHandler, MESSAGE_TIMEOUT, r); 1522 long delay = immediate ? 0 : (r.duration == Toast.LENGTH_LONG ? LONG_DELAY : SHORT_DELAY); 1523 mHandler.removeCallbacksAndMessages(r); 1524 mHandler.sendMessageDelayed(m, delay); 1525 } 1526 1527 private void handleTimeout(ToastRecord record) 1528 { 1529 if (DBG) Slog.d(TAG, "Timeout pkg=" + record.pkg + " callback=" + record.callback); 1530 synchronized (mToastQueue) { 1531 int index = indexOfToastLocked(record.pkg, record.callback); 1532 if (index >= 0) { 1533 cancelToastLocked(index); 1534 } 1535 } 1536 } 1537 1538 // lock on mToastQueue 1539 private int indexOfToastLocked(String pkg, ITransientNotification callback) 1540 { 1541 IBinder cbak = callback.asBinder(); 1542 ArrayList<ToastRecord> list = mToastQueue; 1543 int len = list.size(); 1544 for (int i=0; i<len; i++) { 1545 ToastRecord r = list.get(i); 1546 if (r.pkg.equals(pkg) && r.callback.asBinder() == cbak) { 1547 return i; 1548 } 1549 } 1550 return -1; 1551 } 1552 1553 // lock on mToastQueue 1554 private void keepProcessAliveLocked(int pid) 1555 { 1556 int toastCount = 0; // toasts from this pid 1557 ArrayList<ToastRecord> list = mToastQueue; 1558 int N = list.size(); 1559 for (int i=0; i<N; i++) { 1560 ToastRecord r = list.get(i); 1561 if (r.pid == pid) { 1562 toastCount++; 1563 } 1564 } 1565 try { 1566 mAm.setProcessForeground(mForegroundToken, pid, toastCount > 0); 1567 } catch (RemoteException e) { 1568 // Shouldn't happen. 1569 } 1570 } 1571 1572 private final class WorkerHandler extends Handler 1573 { 1574 @Override 1575 public void handleMessage(Message msg) 1576 { 1577 switch (msg.what) 1578 { 1579 case MESSAGE_TIMEOUT: 1580 handleTimeout((ToastRecord)msg.obj); 1581 break; 1582 } 1583 } 1584 } 1585 1586 1587 // Notifications 1588 // ============================================================================ 1589 public void enqueueNotificationWithTag(String pkg, String basePkg, String tag, int id, 1590 Notification notification, int[] idOut, int userId) 1591 { 1592 enqueueNotificationInternal(pkg, basePkg, Binder.getCallingUid(), Binder.getCallingPid(), 1593 tag, id, notification, idOut, userId); 1594 } 1595 1596 private final static int clamp(int x, int low, int high) { 1597 return (x < low) ? low : ((x > high) ? high : x); 1598 } 1599 1600 // Not exposed via Binder; for system use only (otherwise malicious apps could spoof the 1601 // uid/pid of another application) 1602 public void enqueueNotificationInternal(String pkg, String basePkg, int callingUid, 1603 int callingPid, String tag, int id, Notification notification, int[] idOut, int userId) 1604 { 1605 if (DBG) { 1606 Slog.v(TAG, "enqueueNotificationInternal: pkg=" + pkg + " id=" + id + " notification=" + notification); 1607 } 1608 checkCallerIsSystemOrSameApp(pkg); 1609 final boolean isSystemNotification = isCallerSystem() || ("android".equals(pkg)); 1610 1611 userId = ActivityManager.handleIncomingUser(callingPid, 1612 callingUid, userId, true, false, "enqueueNotification", pkg); 1613 final UserHandle user = new UserHandle(userId); 1614 1615 // Limit the number of notifications that any given package except the android 1616 // package can enqueue. Prevents DOS attacks and deals with leaks. 1617 if (!isSystemNotification) { 1618 synchronized (mNotificationList) { 1619 int count = 0; 1620 final int N = mNotificationList.size(); 1621 for (int i=0; i<N; i++) { 1622 final NotificationRecord r = mNotificationList.get(i); 1623 if (r.sbn.getPackageName().equals(pkg) && r.sbn.getUserId() == userId) { 1624 count++; 1625 if (count >= MAX_PACKAGE_NOTIFICATIONS) { 1626 Slog.e(TAG, "Package has already posted " + count 1627 + " notifications. Not showing more. package=" + pkg); 1628 return; 1629 } 1630 } 1631 } 1632 } 1633 } 1634 1635 // This conditional is a dirty hack to limit the logging done on 1636 // behalf of the download manager without affecting other apps. 1637 if (!pkg.equals("com.android.providers.downloads") 1638 || Log.isLoggable("DownloadManager", Log.VERBOSE)) { 1639 EventLog.writeEvent(EventLogTags.NOTIFICATION_ENQUEUE, pkg, id, tag, userId, 1640 notification.toString()); 1641 } 1642 1643 if (pkg == null || notification == null) { 1644 throw new IllegalArgumentException("null not allowed: pkg=" + pkg 1645 + " id=" + id + " notification=" + notification); 1646 } 1647 if (notification.icon != 0) { 1648 if (notification.contentView == null) { 1649 throw new IllegalArgumentException("contentView required: pkg=" + pkg 1650 + " id=" + id + " notification=" + notification); 1651 } 1652 } 1653 1654 // === Scoring === 1655 1656 // 0. Sanitize inputs 1657 notification.priority = clamp(notification.priority, Notification.PRIORITY_MIN, Notification.PRIORITY_MAX); 1658 // Migrate notification flags to scores 1659 if (0 != (notification.flags & Notification.FLAG_HIGH_PRIORITY)) { 1660 if (notification.priority < Notification.PRIORITY_MAX) notification.priority = Notification.PRIORITY_MAX; 1661 } else if (SCORE_ONGOING_HIGHER && 0 != (notification.flags & Notification.FLAG_ONGOING_EVENT)) { 1662 if (notification.priority < Notification.PRIORITY_HIGH) notification.priority = Notification.PRIORITY_HIGH; 1663 } 1664 1665 // 1. initial score: buckets of 10, around the app 1666 int score = notification.priority * NOTIFICATION_PRIORITY_MULTIPLIER; //[-20..20] 1667 1668 // 2. Consult external heuristics (TBD) 1669 1670 // 3. Apply local rules 1671 1672 // blocked apps 1673 if (ENABLE_BLOCKED_NOTIFICATIONS && !noteNotificationOp(pkg, callingUid)) { 1674 if (!isSystemNotification) { 1675 score = JUNK_SCORE; 1676 Slog.e(TAG, "Suppressing notification from package " + pkg + " by user request."); 1677 } 1678 } 1679 1680 if (DBG) { 1681 Slog.v(TAG, "Assigned score=" + score + " to " + notification); 1682 } 1683 1684 if (score < SCORE_DISPLAY_THRESHOLD) { 1685 // Notification will be blocked because the score is too low. 1686 return; 1687 } 1688 1689 // Should this notification make noise, vibe, or use the LED? 1690 final boolean canInterrupt = (score >= SCORE_INTERRUPTION_THRESHOLD); 1691 1692 synchronized (mNotificationList) { 1693 final StatusBarNotification n = new StatusBarNotification( 1694 pkg, id, tag, callingUid, callingPid, score, notification, user); 1695 NotificationRecord r = new NotificationRecord(n); 1696 NotificationRecord old = null; 1697 1698 int index = indexOfNotificationLocked(pkg, tag, id, userId); 1699 if (index < 0) { 1700 mNotificationList.add(r); 1701 } else { 1702 old = mNotificationList.remove(index); 1703 mNotificationList.add(index, r); 1704 // Make sure we don't lose the foreground service state. 1705 if (old != null) { 1706 notification.flags |= 1707 old.getNotification().flags&Notification.FLAG_FOREGROUND_SERVICE; 1708 } 1709 } 1710 1711 // Ensure if this is a foreground service that the proper additional 1712 // flags are set. 1713 if ((notification.flags&Notification.FLAG_FOREGROUND_SERVICE) != 0) { 1714 notification.flags |= Notification.FLAG_ONGOING_EVENT 1715 | Notification.FLAG_NO_CLEAR; 1716 } 1717 1718 final int currentUser; 1719 final long token = Binder.clearCallingIdentity(); 1720 try { 1721 currentUser = ActivityManager.getCurrentUser(); 1722 } finally { 1723 Binder.restoreCallingIdentity(token); 1724 } 1725 1726 if (notification.icon != 0) { 1727 if (old != null && old.statusBarKey != null) { 1728 r.statusBarKey = old.statusBarKey; 1729 long identity = Binder.clearCallingIdentity(); 1730 try { 1731 mStatusBar.updateNotification(r.statusBarKey, n); 1732 } 1733 finally { 1734 Binder.restoreCallingIdentity(identity); 1735 } 1736 } else { 1737 long identity = Binder.clearCallingIdentity(); 1738 try { 1739 r.statusBarKey = mStatusBar.addNotification(n); 1740 if ((n.getNotification().flags & Notification.FLAG_SHOW_LIGHTS) != 0 1741 && canInterrupt) { 1742 mAttentionLight.pulse(); 1743 } 1744 } 1745 finally { 1746 Binder.restoreCallingIdentity(identity); 1747 } 1748 } 1749 // Send accessibility events only for the current user. 1750 if (currentUser == userId) { 1751 sendAccessibilityEvent(notification, pkg); 1752 } 1753 1754 notifyPostedLocked(r); 1755 } else { 1756 Slog.e(TAG, "Not posting notification with icon==0: " + notification); 1757 if (old != null && old.statusBarKey != null) { 1758 long identity = Binder.clearCallingIdentity(); 1759 try { 1760 mStatusBar.removeNotification(old.statusBarKey); 1761 } 1762 finally { 1763 Binder.restoreCallingIdentity(identity); 1764 } 1765 1766 notifyRemovedLocked(r); 1767 } 1768 // ATTENTION: in a future release we will bail out here 1769 // so that we do not play sounds, show lights, etc. for invalid notifications 1770 Slog.e(TAG, "WARNING: In a future release this will crash the app: " + n.getPackageName()); 1771 } 1772 1773 // If we're not supposed to beep, vibrate, etc. then don't. 1774 if (((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) == 0) 1775 && (!(old != null 1776 && (notification.flags & Notification.FLAG_ONLY_ALERT_ONCE) != 0 )) 1777 && (r.getUserId() == UserHandle.USER_ALL || 1778 (r.getUserId() == userId && r.getUserId() == currentUser)) 1779 && canInterrupt 1780 && mSystemReady) { 1781 1782 final AudioManager audioManager = (AudioManager) mContext 1783 .getSystemService(Context.AUDIO_SERVICE); 1784 1785 // sound 1786 1787 // should we use the default notification sound? (indicated either by DEFAULT_SOUND 1788 // or because notification.sound is pointing at Settings.System.NOTIFICATION_SOUND) 1789 final boolean useDefaultSound = 1790 (notification.defaults & Notification.DEFAULT_SOUND) != 0 1791 || Settings.System.DEFAULT_NOTIFICATION_URI.equals(notification.sound); 1792 1793 Uri soundUri = null; 1794 boolean hasValidSound = false; 1795 1796 if (useDefaultSound) { 1797 soundUri = Settings.System.DEFAULT_NOTIFICATION_URI; 1798 1799 // check to see if the default notification sound is silent 1800 ContentResolver resolver = mContext.getContentResolver(); 1801 hasValidSound = Settings.System.getString(resolver, 1802 Settings.System.NOTIFICATION_SOUND) != null; 1803 } else if (notification.sound != null) { 1804 soundUri = notification.sound; 1805 hasValidSound = (soundUri != null); 1806 } 1807 1808 if (hasValidSound) { 1809 boolean looping = (notification.flags & Notification.FLAG_INSISTENT) != 0; 1810 int audioStreamType; 1811 if (notification.audioStreamType >= 0) { 1812 audioStreamType = notification.audioStreamType; 1813 } else { 1814 audioStreamType = DEFAULT_STREAM_TYPE; 1815 } 1816 mSoundNotification = r; 1817 // do not play notifications if stream volume is 0 1818 // (typically because ringer mode is silent) or if speech recognition is active. 1819 if ((audioManager.getStreamVolume(audioStreamType) != 0) 1820 && !audioManager.isSpeechRecognitionActive()) { 1821 final long identity = Binder.clearCallingIdentity(); 1822 try { 1823 final IRingtonePlayer player = mAudioService.getRingtonePlayer(); 1824 if (player != null) { 1825 player.playAsync(soundUri, user, looping, audioStreamType); 1826 } 1827 } catch (RemoteException e) { 1828 } finally { 1829 Binder.restoreCallingIdentity(identity); 1830 } 1831 } 1832 } 1833 1834 // vibrate 1835 // Does the notification want to specify its own vibration? 1836 final boolean hasCustomVibrate = notification.vibrate != null; 1837 1838 // new in 4.2: if there was supposed to be a sound and we're in vibrate mode, 1839 // and no other vibration is specified, we fall back to vibration 1840 final boolean convertSoundToVibration = 1841 !hasCustomVibrate 1842 && hasValidSound 1843 && (audioManager.getRingerMode() == AudioManager.RINGER_MODE_VIBRATE); 1844 1845 // The DEFAULT_VIBRATE flag trumps any custom vibration AND the fallback. 1846 final boolean useDefaultVibrate = 1847 (notification.defaults & Notification.DEFAULT_VIBRATE) != 0; 1848 1849 if ((useDefaultVibrate || convertSoundToVibration || hasCustomVibrate) 1850 && !(audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT)) { 1851 mVibrateNotification = r; 1852 1853 if (useDefaultVibrate || convertSoundToVibration) { 1854 // Escalate privileges so we can use the vibrator even if the notifying app 1855 // does not have the VIBRATE permission. 1856 long identity = Binder.clearCallingIdentity(); 1857 try { 1858 mVibrator.vibrate(r.sbn.getUid(), r.sbn.getBasePkg(), 1859 useDefaultVibrate ? mDefaultVibrationPattern 1860 : mFallbackVibrationPattern, 1861 ((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1); 1862 } finally { 1863 Binder.restoreCallingIdentity(identity); 1864 } 1865 } else if (notification.vibrate.length > 1) { 1866 // If you want your own vibration pattern, you need the VIBRATE permission 1867 mVibrator.vibrate(r.sbn.getUid(), r.sbn.getBasePkg(), notification.vibrate, 1868 ((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1); 1869 } 1870 } 1871 } 1872 1873 // light 1874 // the most recent thing gets the light 1875 mLights.remove(old); 1876 if (mLedNotification == old) { 1877 mLedNotification = null; 1878 } 1879 //Slog.i(TAG, "notification.lights=" 1880 // + ((old.notification.lights.flags & Notification.FLAG_SHOW_LIGHTS) != 0)); 1881 if ((notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0 1882 && canInterrupt) { 1883 mLights.add(r); 1884 updateLightsLocked(); 1885 } else { 1886 if (old != null 1887 && ((old.getFlags() & Notification.FLAG_SHOW_LIGHTS) != 0)) { 1888 updateLightsLocked(); 1889 } 1890 } 1891 } 1892 1893 idOut[0] = id; 1894 } 1895 1896 private void sendAccessibilityEvent(Notification notification, CharSequence packageName) { 1897 AccessibilityManager manager = AccessibilityManager.getInstance(mContext); 1898 if (!manager.isEnabled()) { 1899 return; 1900 } 1901 1902 AccessibilityEvent event = 1903 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED); 1904 event.setPackageName(packageName); 1905 event.setClassName(Notification.class.getName()); 1906 event.setParcelableData(notification); 1907 CharSequence tickerText = notification.tickerText; 1908 if (!TextUtils.isEmpty(tickerText)) { 1909 event.getText().add(tickerText); 1910 } 1911 1912 manager.sendAccessibilityEvent(event); 1913 } 1914 1915 private void cancelNotificationLocked(NotificationRecord r, boolean sendDelete) { 1916 // tell the app 1917 if (sendDelete) { 1918 if (r.getNotification().deleteIntent != null) { 1919 try { 1920 r.getNotification().deleteIntent.send(); 1921 } catch (PendingIntent.CanceledException ex) { 1922 // do nothing - there's no relevant way to recover, and 1923 // no reason to let this propagate 1924 Slog.w(TAG, "canceled PendingIntent for " + r.sbn.getPackageName(), ex); 1925 } 1926 } 1927 } 1928 1929 // status bar 1930 if (r.getNotification().icon != 0) { 1931 long identity = Binder.clearCallingIdentity(); 1932 try { 1933 mStatusBar.removeNotification(r.statusBarKey); 1934 } 1935 finally { 1936 Binder.restoreCallingIdentity(identity); 1937 } 1938 r.statusBarKey = null; 1939 notifyRemovedLocked(r); 1940 } 1941 1942 // sound 1943 if (mSoundNotification == r) { 1944 mSoundNotification = null; 1945 final long identity = Binder.clearCallingIdentity(); 1946 try { 1947 final IRingtonePlayer player = mAudioService.getRingtonePlayer(); 1948 if (player != null) { 1949 player.stopAsync(); 1950 } 1951 } catch (RemoteException e) { 1952 } finally { 1953 Binder.restoreCallingIdentity(identity); 1954 } 1955 } 1956 1957 // vibrate 1958 if (mVibrateNotification == r) { 1959 mVibrateNotification = null; 1960 long identity = Binder.clearCallingIdentity(); 1961 try { 1962 mVibrator.cancel(); 1963 } 1964 finally { 1965 Binder.restoreCallingIdentity(identity); 1966 } 1967 } 1968 1969 // light 1970 mLights.remove(r); 1971 if (mLedNotification == r) { 1972 mLedNotification = null; 1973 } 1974 1975 // Save it for users of getHistoricalNotifications() 1976 mArchive.record(r.sbn); 1977 } 1978 1979 /** 1980 * Cancels a notification ONLY if it has all of the {@code mustHaveFlags} 1981 * and none of the {@code mustNotHaveFlags}. 1982 */ 1983 private void cancelNotification(String pkg, String tag, int id, int mustHaveFlags, 1984 int mustNotHaveFlags, boolean sendDelete, int userId) { 1985 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL, pkg, id, tag, userId, 1986 mustHaveFlags, mustNotHaveFlags); 1987 1988 synchronized (mNotificationList) { 1989 int index = indexOfNotificationLocked(pkg, tag, id, userId); 1990 if (index >= 0) { 1991 NotificationRecord r = mNotificationList.get(index); 1992 1993 if ((r.getNotification().flags & mustHaveFlags) != mustHaveFlags) { 1994 return; 1995 } 1996 if ((r.getNotification().flags & mustNotHaveFlags) != 0) { 1997 return; 1998 } 1999 2000 mNotificationList.remove(index); 2001 2002 cancelNotificationLocked(r, sendDelete); 2003 updateLightsLocked(); 2004 } 2005 } 2006 } 2007 2008 /** 2009 * Determine whether the userId applies to the notification in question, either because 2010 * they match exactly, or one of them is USER_ALL (which is treated as a wildcard). 2011 */ 2012 private boolean notificationMatchesUserId(NotificationRecord r, int userId) { 2013 return 2014 // looking for USER_ALL notifications? match everything 2015 userId == UserHandle.USER_ALL 2016 // a notification sent to USER_ALL matches any query 2017 || r.getUserId() == UserHandle.USER_ALL 2018 // an exact user match 2019 || r.getUserId() == userId; 2020 } 2021 2022 /** 2023 * Cancels all notifications from a given package that have all of the 2024 * {@code mustHaveFlags}. 2025 */ 2026 boolean cancelAllNotificationsInt(String pkg, int mustHaveFlags, 2027 int mustNotHaveFlags, boolean doit, int userId) { 2028 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL_ALL, pkg, userId, 2029 mustHaveFlags, mustNotHaveFlags); 2030 2031 synchronized (mNotificationList) { 2032 final int N = mNotificationList.size(); 2033 boolean canceledSomething = false; 2034 for (int i = N-1; i >= 0; --i) { 2035 NotificationRecord r = mNotificationList.get(i); 2036 if (!notificationMatchesUserId(r, userId)) { 2037 continue; 2038 } 2039 // Don't remove notifications to all, if there's no package name specified 2040 if (r.getUserId() == UserHandle.USER_ALL && pkg == null) { 2041 continue; 2042 } 2043 if ((r.getFlags() & mustHaveFlags) != mustHaveFlags) { 2044 continue; 2045 } 2046 if ((r.getFlags() & mustNotHaveFlags) != 0) { 2047 continue; 2048 } 2049 if (pkg != null && !r.sbn.getPackageName().equals(pkg)) { 2050 continue; 2051 } 2052 canceledSomething = true; 2053 if (!doit) { 2054 return true; 2055 } 2056 mNotificationList.remove(i); 2057 cancelNotificationLocked(r, false); 2058 } 2059 if (canceledSomething) { 2060 updateLightsLocked(); 2061 } 2062 return canceledSomething; 2063 } 2064 } 2065 2066 public void cancelNotificationWithTag(String pkg, String tag, int id, int userId) { 2067 checkCallerIsSystemOrSameApp(pkg); 2068 userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), 2069 Binder.getCallingUid(), userId, true, false, "cancelNotificationWithTag", pkg); 2070 // Don't allow client applications to cancel foreground service notis. 2071 cancelNotification(pkg, tag, id, 0, 2072 Binder.getCallingUid() == Process.SYSTEM_UID 2073 ? 0 : Notification.FLAG_FOREGROUND_SERVICE, false, userId); 2074 } 2075 2076 public void cancelAllNotifications(String pkg, int userId) { 2077 checkCallerIsSystemOrSameApp(pkg); 2078 2079 userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), 2080 Binder.getCallingUid(), userId, true, false, "cancelAllNotifications", pkg); 2081 2082 // Calling from user space, don't allow the canceling of actively 2083 // running foreground services. 2084 cancelAllNotificationsInt(pkg, 0, Notification.FLAG_FOREGROUND_SERVICE, true, userId); 2085 } 2086 2087 // Return true if the caller is a system or phone UID and therefore should not have 2088 // any notifications or toasts blocked. 2089 boolean isCallerSystem() { 2090 final int uid = Binder.getCallingUid(); 2091 final int appid = UserHandle.getAppId(uid); 2092 return (appid == Process.SYSTEM_UID || appid == Process.PHONE_UID || uid == 0); 2093 } 2094 2095 void checkCallerIsSystem() { 2096 if (isCallerSystem()) { 2097 return; 2098 } 2099 throw new SecurityException("Disallowed call for uid " + Binder.getCallingUid()); 2100 } 2101 2102 void checkCallerIsSystemOrSameApp(String pkg) { 2103 if (isCallerSystem()) { 2104 return; 2105 } 2106 final int uid = Binder.getCallingUid(); 2107 try { 2108 ApplicationInfo ai = AppGlobals.getPackageManager().getApplicationInfo( 2109 pkg, 0, UserHandle.getCallingUserId()); 2110 if (!UserHandle.isSameApp(ai.uid, uid)) { 2111 throw new SecurityException("Calling uid " + uid + " gave package" 2112 + pkg + " which is owned by uid " + ai.uid); 2113 } 2114 } catch (RemoteException re) { 2115 throw new SecurityException("Unknown package " + pkg + "\n" + re); 2116 } 2117 } 2118 2119 void cancelAll(int userId) { 2120 synchronized (mNotificationList) { 2121 final int N = mNotificationList.size(); 2122 for (int i=N-1; i>=0; i--) { 2123 NotificationRecord r = mNotificationList.get(i); 2124 2125 if (!notificationMatchesUserId(r, userId)) { 2126 continue; 2127 } 2128 2129 if ((r.getFlags() & (Notification.FLAG_ONGOING_EVENT 2130 | Notification.FLAG_NO_CLEAR)) == 0) { 2131 mNotificationList.remove(i); 2132 cancelNotificationLocked(r, true); 2133 } 2134 } 2135 2136 updateLightsLocked(); 2137 } 2138 } 2139 2140 // lock on mNotificationList 2141 private void updateLightsLocked() 2142 { 2143 // handle notification lights 2144 if (mLedNotification == null) { 2145 // get next notification, if any 2146 int n = mLights.size(); 2147 if (n > 0) { 2148 mLedNotification = mLights.get(n-1); 2149 } 2150 } 2151 2152 // Don't flash while we are in a call or screen is on 2153 if (mLedNotification == null || mInCall || mScreenOn) { 2154 mNotificationLight.turnOff(); 2155 } else { 2156 final Notification ledno = mLedNotification.sbn.getNotification(); 2157 int ledARGB = ledno.ledARGB; 2158 int ledOnMS = ledno.ledOnMS; 2159 int ledOffMS = ledno.ledOffMS; 2160 if ((ledno.defaults & Notification.DEFAULT_LIGHTS) != 0) { 2161 ledARGB = mDefaultNotificationColor; 2162 ledOnMS = mDefaultNotificationLedOn; 2163 ledOffMS = mDefaultNotificationLedOff; 2164 } 2165 if (mNotificationPulseEnabled) { 2166 // pulse repeatedly 2167 mNotificationLight.setFlashing(ledARGB, LightsService.LIGHT_FLASH_TIMED, 2168 ledOnMS, ledOffMS); 2169 } 2170 } 2171 } 2172 2173 // lock on mNotificationList 2174 private int indexOfNotificationLocked(String pkg, String tag, int id, int userId) 2175 { 2176 ArrayList<NotificationRecord> list = mNotificationList; 2177 final int len = list.size(); 2178 for (int i=0; i<len; i++) { 2179 NotificationRecord r = list.get(i); 2180 if (!notificationMatchesUserId(r, userId) || r.sbn.getId() != id) { 2181 continue; 2182 } 2183 if (tag == null) { 2184 if (r.sbn.getTag() != null) { 2185 continue; 2186 } 2187 } else { 2188 if (!tag.equals(r.sbn.getTag())) { 2189 continue; 2190 } 2191 } 2192 if (r.sbn.getPackageName().equals(pkg)) { 2193 return i; 2194 } 2195 } 2196 return -1; 2197 } 2198 2199 private void updateNotificationPulse() { 2200 synchronized (mNotificationList) { 2201 updateLightsLocked(); 2202 } 2203 } 2204 2205 // ====================================================================== 2206 @Override 2207 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2208 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2209 != PackageManager.PERMISSION_GRANTED) { 2210 pw.println("Permission Denial: can't dump NotificationManager from from pid=" 2211 + Binder.getCallingPid() 2212 + ", uid=" + Binder.getCallingUid()); 2213 return; 2214 } 2215 2216 pw.println("Current Notification Manager state:"); 2217 2218 pw.println(" Listeners (" + mEnabledListenersForCurrentUser.size() 2219 + ") enabled for current user:"); 2220 for (ComponentName cmpt : mEnabledListenersForCurrentUser) { 2221 pw.println(" " + cmpt); 2222 } 2223 2224 pw.println(" Live listeners (" + mListeners.size() + "):"); 2225 for (NotificationListenerInfo info : mListeners) { 2226 pw.println(" " + info.component 2227 + " (user " + info.userid + "): " + info.listener 2228 + (info.isSystem?" SYSTEM":"")); 2229 } 2230 2231 int N; 2232 2233 synchronized (mToastQueue) { 2234 N = mToastQueue.size(); 2235 if (N > 0) { 2236 pw.println(" Toast Queue:"); 2237 for (int i=0; i<N; i++) { 2238 mToastQueue.get(i).dump(pw, " "); 2239 } 2240 pw.println(" "); 2241 } 2242 2243 } 2244 2245 synchronized (mNotificationList) { 2246 N = mNotificationList.size(); 2247 if (N > 0) { 2248 pw.println(" Notification List:"); 2249 for (int i=0; i<N; i++) { 2250 mNotificationList.get(i).dump(pw, " ", mContext); 2251 } 2252 pw.println(" "); 2253 } 2254 2255 N = mLights.size(); 2256 if (N > 0) { 2257 pw.println(" Lights List:"); 2258 for (int i=0; i<N; i++) { 2259 pw.println(" " + mLights.get(i)); 2260 } 2261 pw.println(" "); 2262 } 2263 2264 pw.println(" mSoundNotification=" + mSoundNotification); 2265 pw.println(" mVibrateNotification=" + mVibrateNotification); 2266 pw.println(" mDisabledNotifications=0x" + Integer.toHexString(mDisabledNotifications)); 2267 pw.println(" mSystemReady=" + mSystemReady); 2268 pw.println(" mArchive=" + mArchive.toString()); 2269 Iterator<StatusBarNotification> iter = mArchive.descendingIterator(); 2270 int i=0; 2271 while (iter.hasNext()) { 2272 pw.println(" " + iter.next()); 2273 if (++i >= 5) { 2274 if (iter.hasNext()) pw.println(" ..."); 2275 break; 2276 } 2277 } 2278 2279 } 2280 } 2281 } 2282
