NotificationManagerService.java revision 2117f6fa3880e55e6a90fbd8b3a12d469c9b738b
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 17package com.android.server; 18 19import com.android.internal.statusbar.StatusBarNotification; 20import com.android.server.StatusBarManagerService; 21 22import android.app.ActivityManagerNative; 23import android.app.IActivityManager; 24import android.app.INotificationManager; 25import android.app.ITransientNotification; 26import android.app.Notification; 27import android.app.NotificationManager; 28import android.app.PendingIntent; 29import android.app.StatusBarManager; 30import android.content.BroadcastReceiver; 31import android.content.ComponentName; 32import android.content.ContentResolver; 33import android.content.Context; 34import android.content.Intent; 35import android.content.IntentFilter; 36import android.content.pm.ApplicationInfo; 37import android.content.pm.PackageManager; 38import android.content.pm.PackageManager.NameNotFoundException; 39import android.content.res.Resources; 40import android.database.ContentObserver; 41import android.hardware.Usb; 42import android.media.AudioManager; 43import android.net.Uri; 44import android.os.BatteryManager; 45import android.os.Bundle; 46import android.os.Binder; 47import android.os.Handler; 48import android.os.IBinder; 49import android.os.Message; 50import android.os.Power; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemProperties; 54import android.os.Vibrator; 55import android.provider.Settings; 56import android.telephony.TelephonyManager; 57import android.text.TextUtils; 58import android.util.EventLog; 59import android.util.Slog; 60import android.util.Log; 61import android.view.accessibility.AccessibilityEvent; 62import android.view.accessibility.AccessibilityManager; 63import android.widget.Toast; 64 65import java.io.FileDescriptor; 66import java.io.PrintWriter; 67import java.util.ArrayList; 68import java.util.Arrays; 69 70/** {@hide} */ 71public class NotificationManagerService extends INotificationManager.Stub 72{ 73 private static final String TAG = "NotificationService"; 74 private static final boolean DBG = false; 75 76 private static final int MAX_PACKAGE_NOTIFICATIONS = 50; 77 78 // message codes 79 private static final int MESSAGE_TIMEOUT = 2; 80 81 private static final int LONG_DELAY = 3500; // 3.5 seconds 82 private static final int SHORT_DELAY = 2000; // 2 seconds 83 84 private static final long[] DEFAULT_VIBRATE_PATTERN = {0, 250, 250, 250}; 85 86 private static final int DEFAULT_STREAM_TYPE = AudioManager.STREAM_NOTIFICATION; 87 88 final Context mContext; 89 final IActivityManager mAm; 90 final IBinder mForegroundToken = new Binder(); 91 92 private WorkerHandler mHandler; 93 private StatusBarManagerService mStatusBar; 94 private LightsService mLightsService; 95 private LightsService.Light mBatteryLight; 96 private LightsService.Light mNotificationLight; 97 private LightsService.Light mAttentionLight; 98 99 private int mDefaultNotificationColor; 100 private int mDefaultNotificationLedOn; 101 private int mDefaultNotificationLedOff; 102 103 private NotificationRecord mSoundNotification; 104 private NotificationPlayer mSound; 105 private boolean mSystemReady; 106 private int mDisabledNotifications; 107 108 private NotificationRecord mVibrateNotification; 109 private Vibrator mVibrator = new Vibrator(); 110 111 // for enabling and disabling notification pulse behavior 112 private boolean mScreenOn = true; 113 private boolean mInCall = false; 114 private boolean mNotificationPulseEnabled; 115 // This is true if we have received a new notification while the screen is off 116 // (that is, if mLedNotification was set while the screen was off) 117 // This is reset to false when the screen is turned on. 118 private boolean mPendingPulseNotification; 119 120 // for adb connected notifications 121 private boolean mAdbNotificationShown = false; 122 private Notification mAdbNotification; 123 124 private final ArrayList<NotificationRecord> mNotificationList = 125 new ArrayList<NotificationRecord>(); 126 127 private ArrayList<ToastRecord> mToastQueue; 128 129 private ArrayList<NotificationRecord> mLights = new ArrayList<NotificationRecord>(); 130 131 private boolean mBatteryCharging; 132 private boolean mBatteryLow; 133 private boolean mBatteryFull; 134 private NotificationRecord mLedNotification; 135 136 private static final int BATTERY_LOW_ARGB = 0xFFFF0000; // Charging Low - red solid on 137 private static final int BATTERY_MEDIUM_ARGB = 0xFFFFFF00; // Charging - orange solid on 138 private static final int BATTERY_FULL_ARGB = 0xFF00FF00; // Charging Full - green solid on 139 private static final int BATTERY_BLINK_ON = 125; 140 private static final int BATTERY_BLINK_OFF = 2875; 141 142 private static String idDebugString(Context baseContext, String packageName, int id) { 143 Context c = null; 144 145 if (packageName != null) { 146 try { 147 c = baseContext.createPackageContext(packageName, 0); 148 } catch (NameNotFoundException e) { 149 c = baseContext; 150 } 151 } else { 152 c = baseContext; 153 } 154 155 String pkg; 156 String type; 157 String name; 158 159 Resources r = c.getResources(); 160 try { 161 return r.getResourceName(id); 162 } catch (Resources.NotFoundException e) { 163 return "<name unknown>"; 164 } 165 } 166 167 private static final class NotificationRecord 168 { 169 final String pkg; 170 final String tag; 171 final int id; 172 final int uid; 173 final int initialPid; 174 ITransientNotification callback; 175 int duration; 176 final Notification notification; 177 IBinder statusBarKey; 178 179 NotificationRecord(String pkg, String tag, int id, int uid, int initialPid, 180 Notification notification) 181 { 182 this.pkg = pkg; 183 this.tag = tag; 184 this.id = id; 185 this.uid = uid; 186 this.initialPid = initialPid; 187 this.notification = notification; 188 } 189 190 void dump(PrintWriter pw, String prefix, Context baseContext) { 191 pw.println(prefix + this); 192 pw.println(prefix + " icon=0x" + Integer.toHexString(notification.icon) 193 + " / " + idDebugString(baseContext, this.pkg, notification.icon)); 194 pw.println(prefix + " contentIntent=" + notification.contentIntent); 195 pw.println(prefix + " deleteIntent=" + notification.deleteIntent); 196 pw.println(prefix + " tickerText=" + notification.tickerText); 197 pw.println(prefix + " contentView=" + notification.contentView); 198 pw.println(prefix + " defaults=0x" + Integer.toHexString(notification.defaults)); 199 pw.println(prefix + " flags=0x" + Integer.toHexString(notification.flags)); 200 pw.println(prefix + " sound=" + notification.sound); 201 pw.println(prefix + " vibrate=" + Arrays.toString(notification.vibrate)); 202 pw.println(prefix + " ledARGB=0x" + Integer.toHexString(notification.ledARGB) 203 + " ledOnMS=" + notification.ledOnMS 204 + " ledOffMS=" + notification.ledOffMS); 205 } 206 207 @Override 208 public final String toString() 209 { 210 return "NotificationRecord{" 211 + Integer.toHexString(System.identityHashCode(this)) 212 + " pkg=" + pkg 213 + " id=" + Integer.toHexString(id) 214 + " tag=" + tag + "}"; 215 } 216 } 217 218 private static final class ToastRecord 219 { 220 final int pid; 221 final String pkg; 222 final ITransientNotification callback; 223 int duration; 224 225 ToastRecord(int pid, String pkg, ITransientNotification callback, int duration) 226 { 227 this.pid = pid; 228 this.pkg = pkg; 229 this.callback = callback; 230 this.duration = duration; 231 } 232 233 void update(int duration) { 234 this.duration = duration; 235 } 236 237 void dump(PrintWriter pw, String prefix) { 238 pw.println(prefix + this); 239 } 240 241 @Override 242 public final String toString() 243 { 244 return "ToastRecord{" 245 + Integer.toHexString(System.identityHashCode(this)) 246 + " pkg=" + pkg 247 + " callback=" + callback 248 + " duration=" + duration; 249 } 250 } 251 252 private StatusBarManagerService.NotificationCallbacks mNotificationCallbacks 253 = new StatusBarManagerService.NotificationCallbacks() { 254 255 public void onSetDisabled(int status) { 256 synchronized (mNotificationList) { 257 mDisabledNotifications = status; 258 if ((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) != 0) { 259 // cancel whatever's going on 260 long identity = Binder.clearCallingIdentity(); 261 try { 262 mSound.stop(); 263 } 264 finally { 265 Binder.restoreCallingIdentity(identity); 266 } 267 268 identity = Binder.clearCallingIdentity(); 269 try { 270 mVibrator.cancel(); 271 } 272 finally { 273 Binder.restoreCallingIdentity(identity); 274 } 275 } 276 } 277 } 278 279 public void onClearAll() { 280 cancelAll(); 281 } 282 283 public void onNotificationClick(String pkg, String tag, int id) { 284 cancelNotification(pkg, tag, id, Notification.FLAG_AUTO_CANCEL, 285 Notification.FLAG_FOREGROUND_SERVICE); 286 } 287 288 public void onPanelRevealed() { 289 synchronized (mNotificationList) { 290 // sound 291 mSoundNotification = null; 292 long identity = Binder.clearCallingIdentity(); 293 try { 294 mSound.stop(); 295 } 296 finally { 297 Binder.restoreCallingIdentity(identity); 298 } 299 300 // vibrate 301 mVibrateNotification = null; 302 identity = Binder.clearCallingIdentity(); 303 try { 304 mVibrator.cancel(); 305 } 306 finally { 307 Binder.restoreCallingIdentity(identity); 308 } 309 310 // light 311 mLights.clear(); 312 mLedNotification = null; 313 updateLightsLocked(); 314 } 315 } 316 317 public void onNotificationError(String pkg, String tag, int id, 318 int uid, int initialPid, String message) { 319 Slog.d(TAG, "onNotification error pkg=" + pkg + " tag=" + tag + " id=" + id 320 + "; will crashApplication(uid=" + uid + ", pid=" + initialPid + ")"); 321 cancelNotification(pkg, tag, id, 0, 0); 322 long ident = Binder.clearCallingIdentity(); 323 try { 324 ActivityManagerNative.getDefault().crashApplication(uid, initialPid, pkg, 325 "Bad notification posted from package " + pkg 326 + ": " + message); 327 } catch (RemoteException e) { 328 } 329 Binder.restoreCallingIdentity(ident); 330 } 331 }; 332 333 private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { 334 @Override 335 public void onReceive(Context context, Intent intent) { 336 String action = intent.getAction(); 337 338 boolean queryRestart = false; 339 340 if (action.equals(Intent.ACTION_BATTERY_CHANGED)) { 341 boolean batteryCharging = (intent.getIntExtra("plugged", 0) != 0); 342 int level = intent.getIntExtra("level", -1); 343 boolean batteryLow = (level >= 0 && level <= Power.LOW_BATTERY_THRESHOLD); 344 int status = intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN); 345 boolean batteryFull = (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90); 346 347 if (batteryCharging != mBatteryCharging || 348 batteryLow != mBatteryLow || 349 batteryFull != mBatteryFull) { 350 mBatteryCharging = batteryCharging; 351 mBatteryLow = batteryLow; 352 mBatteryFull = batteryFull; 353 updateLights(); 354 } 355 } else if (action.equals(Usb.ACTION_USB_STATE)) { 356 Bundle extras = intent.getExtras(); 357 boolean usbConnected = extras.getBoolean(Usb.USB_CONNECTED); 358 boolean adbEnabled = (Usb.USB_FUNCTION_ENABLED.equals( 359 extras.getString(Usb.USB_FUNCTION_ADB))); 360 updateAdbNotification(usbConnected && adbEnabled); 361 } else if (action.equals(Usb.ACTION_USB_DISCONNECTED)) { 362 updateAdbNotification(false); 363 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED) 364 || action.equals(Intent.ACTION_PACKAGE_RESTARTED) 365 || (queryRestart=action.equals(Intent.ACTION_QUERY_PACKAGE_RESTART)) 366 || action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 367 String pkgList[] = null; 368 if (action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 369 pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 370 } else if (queryRestart) { 371 pkgList = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES); 372 } else { 373 Uri uri = intent.getData(); 374 if (uri == null) { 375 return; 376 } 377 String pkgName = uri.getSchemeSpecificPart(); 378 if (pkgName == null) { 379 return; 380 } 381 pkgList = new String[]{pkgName}; 382 } 383 if (pkgList != null && (pkgList.length > 0)) { 384 for (String pkgName : pkgList) { 385 cancelAllNotificationsInt(pkgName, 0, 0, !queryRestart); 386 } 387 } 388 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 389 mScreenOn = true; 390 updateNotificationPulse(); 391 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 392 mScreenOn = false; 393 updateNotificationPulse(); 394 } else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) { 395 mInCall = (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_OFFHOOK)); 396 updateNotificationPulse(); 397 } 398 } 399 }; 400 401 class SettingsObserver extends ContentObserver { 402 SettingsObserver(Handler handler) { 403 super(handler); 404 } 405 406 void observe() { 407 ContentResolver resolver = mContext.getContentResolver(); 408 resolver.registerContentObserver(Settings.System.getUriFor( 409 Settings.System.NOTIFICATION_LIGHT_PULSE), false, this); 410 update(); 411 } 412 413 @Override public void onChange(boolean selfChange) { 414 update(); 415 } 416 417 public void update() { 418 ContentResolver resolver = mContext.getContentResolver(); 419 boolean pulseEnabled = Settings.System.getInt(resolver, 420 Settings.System.NOTIFICATION_LIGHT_PULSE, 0) != 0; 421 if (mNotificationPulseEnabled != pulseEnabled) { 422 mNotificationPulseEnabled = pulseEnabled; 423 updateNotificationPulse(); 424 } 425 } 426 } 427 428 NotificationManagerService(Context context, StatusBarManagerService statusBar, 429 LightsService lights) 430 { 431 super(); 432 mContext = context; 433 mLightsService = lights; 434 mAm = ActivityManagerNative.getDefault(); 435 mSound = new NotificationPlayer(TAG); 436 mSound.setUsesWakeLock(context); 437 mToastQueue = new ArrayList<ToastRecord>(); 438 mHandler = new WorkerHandler(); 439 440 mStatusBar = statusBar; 441 statusBar.setNotificationCallbacks(mNotificationCallbacks); 442 443 mBatteryLight = lights.getLight(LightsService.LIGHT_ID_BATTERY); 444 mNotificationLight = lights.getLight(LightsService.LIGHT_ID_NOTIFICATIONS); 445 mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION); 446 447 Resources resources = mContext.getResources(); 448 mDefaultNotificationColor = resources.getColor( 449 com.android.internal.R.color.config_defaultNotificationColor); 450 mDefaultNotificationLedOn = resources.getInteger( 451 com.android.internal.R.integer.config_defaultNotificationLedOn); 452 mDefaultNotificationLedOff = resources.getInteger( 453 com.android.internal.R.integer.config_defaultNotificationLedOff); 454 455 // Don't start allowing notifications until the setup wizard has run once. 456 // After that, including subsequent boots, init with notifications turned on. 457 // This works on the first boot because the setup wizard will toggle this 458 // flag at least once and we'll go back to 0 after that. 459 if (0 == Settings.Secure.getInt(mContext.getContentResolver(), 460 Settings.Secure.DEVICE_PROVISIONED, 0)) { 461 mDisabledNotifications = StatusBarManager.DISABLE_NOTIFICATION_ALERTS; 462 } 463 464 // register for battery changed notifications 465 IntentFilter filter = new IntentFilter(); 466 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 467 filter.addAction(Usb.ACTION_USB_STATE); 468 filter.addAction(Intent.ACTION_SCREEN_ON); 469 filter.addAction(Intent.ACTION_SCREEN_OFF); 470 filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED); 471 mContext.registerReceiver(mIntentReceiver, filter); 472 IntentFilter pkgFilter = new IntentFilter(); 473 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 474 pkgFilter.addAction(Intent.ACTION_PACKAGE_RESTARTED); 475 pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART); 476 pkgFilter.addDataScheme("package"); 477 mContext.registerReceiver(mIntentReceiver, pkgFilter); 478 IntentFilter sdFilter = new IntentFilter(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 479 mContext.registerReceiver(mIntentReceiver, sdFilter); 480 481 SettingsObserver observer = new SettingsObserver(mHandler); 482 observer.observe(); 483 } 484 485 void systemReady() { 486 // no beeping until we're basically done booting 487 mSystemReady = true; 488 } 489 490 // Toasts 491 // ============================================================================ 492 public void enqueueToast(String pkg, ITransientNotification callback, int duration) 493 { 494 if (DBG) Slog.i(TAG, "enqueueToast pkg=" + pkg + " callback=" + callback + " duration=" + duration); 495 496 if (pkg == null || callback == null) { 497 Slog.e(TAG, "Not doing toast. pkg=" + pkg + " callback=" + callback); 498 return ; 499 } 500 501 synchronized (mToastQueue) { 502 int callingPid = Binder.getCallingPid(); 503 long callingId = Binder.clearCallingIdentity(); 504 try { 505 ToastRecord record; 506 int index = indexOfToastLocked(pkg, callback); 507 // If it's already in the queue, we update it in place, we don't 508 // move it to the end of the queue. 509 if (index >= 0) { 510 record = mToastQueue.get(index); 511 record.update(duration); 512 } else { 513 record = new ToastRecord(callingPid, pkg, callback, duration); 514 mToastQueue.add(record); 515 index = mToastQueue.size() - 1; 516 keepProcessAliveLocked(callingPid); 517 } 518 // If it's at index 0, it's the current toast. It doesn't matter if it's 519 // new or just been updated. Call back and tell it to show itself. 520 // If the callback fails, this will remove it from the list, so don't 521 // assume that it's valid after this. 522 if (index == 0) { 523 showNextToastLocked(); 524 } 525 } finally { 526 Binder.restoreCallingIdentity(callingId); 527 } 528 } 529 } 530 531 public void cancelToast(String pkg, ITransientNotification callback) { 532 Slog.i(TAG, "cancelToast pkg=" + pkg + " callback=" + callback); 533 534 if (pkg == null || callback == null) { 535 Slog.e(TAG, "Not cancelling notification. pkg=" + pkg + " callback=" + callback); 536 return ; 537 } 538 539 synchronized (mToastQueue) { 540 long callingId = Binder.clearCallingIdentity(); 541 try { 542 int index = indexOfToastLocked(pkg, callback); 543 if (index >= 0) { 544 cancelToastLocked(index); 545 } else { 546 Slog.w(TAG, "Toast already cancelled. pkg=" + pkg + " callback=" + callback); 547 } 548 } finally { 549 Binder.restoreCallingIdentity(callingId); 550 } 551 } 552 } 553 554 private void showNextToastLocked() { 555 ToastRecord record = mToastQueue.get(0); 556 while (record != null) { 557 if (DBG) Slog.d(TAG, "Show pkg=" + record.pkg + " callback=" + record.callback); 558 try { 559 record.callback.show(); 560 scheduleTimeoutLocked(record, false); 561 return; 562 } catch (RemoteException e) { 563 Slog.w(TAG, "Object died trying to show notification " + record.callback 564 + " in package " + record.pkg); 565 // remove it from the list and let the process die 566 int index = mToastQueue.indexOf(record); 567 if (index >= 0) { 568 mToastQueue.remove(index); 569 } 570 keepProcessAliveLocked(record.pid); 571 if (mToastQueue.size() > 0) { 572 record = mToastQueue.get(0); 573 } else { 574 record = null; 575 } 576 } 577 } 578 } 579 580 private void cancelToastLocked(int index) { 581 ToastRecord record = mToastQueue.get(index); 582 try { 583 record.callback.hide(); 584 } catch (RemoteException e) { 585 Slog.w(TAG, "Object died trying to hide notification " + record.callback 586 + " in package " + record.pkg); 587 // don't worry about this, we're about to remove it from 588 // the list anyway 589 } 590 mToastQueue.remove(index); 591 keepProcessAliveLocked(record.pid); 592 if (mToastQueue.size() > 0) { 593 // Show the next one. If the callback fails, this will remove 594 // it from the list, so don't assume that the list hasn't changed 595 // after this point. 596 showNextToastLocked(); 597 } 598 } 599 600 private void scheduleTimeoutLocked(ToastRecord r, boolean immediate) 601 { 602 Message m = Message.obtain(mHandler, MESSAGE_TIMEOUT, r); 603 long delay = immediate ? 0 : (r.duration == Toast.LENGTH_LONG ? LONG_DELAY : SHORT_DELAY); 604 mHandler.removeCallbacksAndMessages(r); 605 mHandler.sendMessageDelayed(m, delay); 606 } 607 608 private void handleTimeout(ToastRecord record) 609 { 610 if (DBG) Slog.d(TAG, "Timeout pkg=" + record.pkg + " callback=" + record.callback); 611 synchronized (mToastQueue) { 612 int index = indexOfToastLocked(record.pkg, record.callback); 613 if (index >= 0) { 614 cancelToastLocked(index); 615 } 616 } 617 } 618 619 // lock on mToastQueue 620 private int indexOfToastLocked(String pkg, ITransientNotification callback) 621 { 622 IBinder cbak = callback.asBinder(); 623 ArrayList<ToastRecord> list = mToastQueue; 624 int len = list.size(); 625 for (int i=0; i<len; i++) { 626 ToastRecord r = list.get(i); 627 if (r.pkg.equals(pkg) && r.callback.asBinder() == cbak) { 628 return i; 629 } 630 } 631 return -1; 632 } 633 634 // lock on mToastQueue 635 private void keepProcessAliveLocked(int pid) 636 { 637 int toastCount = 0; // toasts from this pid 638 ArrayList<ToastRecord> list = mToastQueue; 639 int N = list.size(); 640 for (int i=0; i<N; i++) { 641 ToastRecord r = list.get(i); 642 if (r.pid == pid) { 643 toastCount++; 644 } 645 } 646 try { 647 mAm.setProcessForeground(mForegroundToken, pid, toastCount > 0); 648 } catch (RemoteException e) { 649 // Shouldn't happen. 650 } 651 } 652 653 private final class WorkerHandler extends Handler 654 { 655 @Override 656 public void handleMessage(Message msg) 657 { 658 switch (msg.what) 659 { 660 case MESSAGE_TIMEOUT: 661 handleTimeout((ToastRecord)msg.obj); 662 break; 663 } 664 } 665 } 666 667 668 // Notifications 669 // ============================================================================ 670 public void enqueueNotification(String pkg, int id, Notification notification, int[] idOut) 671 { 672 enqueueNotificationWithTag(pkg, null /* tag */, id, notification, idOut); 673 } 674 675 public void enqueueNotificationWithTag(String pkg, String tag, int id, Notification notification, 676 int[] idOut) 677 { 678 enqueueNotificationInternal(pkg, Binder.getCallingUid(), Binder.getCallingPid(), 679 tag, id, notification, idOut); 680 } 681 682 // Not exposed via Binder; for system use only (otherwise malicious apps could spoof the 683 // uid/pid of another application) 684 public void enqueueNotificationInternal(String pkg, int callingUid, int callingPid, 685 String tag, int id, Notification notification, int[] idOut) 686 { 687 Slog.d(TAG, "enqueueNotificationWithTag: calling uid=" + callingUid 688 + ", pid=" + callingPid); 689 690 checkIncomingCall(pkg); 691 692 // Limit the number of notifications that any given package except the android 693 // package can enqueue. Prevents DOS attacks and deals with leaks. 694 if (!"android".equals(pkg)) { 695 synchronized (mNotificationList) { 696 int count = 0; 697 final int N = mNotificationList.size(); 698 for (int i=0; i<N; i++) { 699 final NotificationRecord r = mNotificationList.get(i); 700 if (r.pkg.equals(pkg)) { 701 count++; 702 if (count >= MAX_PACKAGE_NOTIFICATIONS) { 703 Slog.e(TAG, "Package has already posted " + count 704 + " notifications. Not showing more. package=" + pkg); 705 return; 706 } 707 } 708 } 709 } 710 } 711 712 // This conditional is a dirty hack to limit the logging done on 713 // behalf of the download manager without affecting other apps. 714 if (!pkg.equals("com.android.providers.downloads") 715 || Log.isLoggable("DownloadManager", Log.VERBOSE)) { 716 EventLog.writeEvent(EventLogTags.NOTIFICATION_ENQUEUE, pkg, id, notification.toString()); 717 } 718 719 if (pkg == null || notification == null) { 720 throw new IllegalArgumentException("null not allowed: pkg=" + pkg 721 + " id=" + id + " notification=" + notification); 722 } 723 if (notification.icon != 0) { 724 if (notification.contentView == null) { 725 throw new IllegalArgumentException("contentView required: pkg=" + pkg 726 + " id=" + id + " notification=" + notification); 727 } 728 if (notification.contentIntent == null) { 729 throw new IllegalArgumentException("contentIntent required: pkg=" + pkg 730 + " id=" + id + " notification=" + notification); 731 } 732 } 733 734 synchronized (mNotificationList) { 735 NotificationRecord r = new NotificationRecord(pkg, tag, id, 736 callingUid, callingPid, notification); 737 NotificationRecord old = null; 738 739 int index = indexOfNotificationLocked(pkg, tag, id); 740 if (index < 0) { 741 mNotificationList.add(r); 742 } else { 743 old = mNotificationList.remove(index); 744 mNotificationList.add(index, r); 745 // Make sure we don't lose the foreground service state. 746 if (old != null) { 747 notification.flags |= 748 old.notification.flags&Notification.FLAG_FOREGROUND_SERVICE; 749 } 750 } 751 752 // Ensure if this is a foreground service that the proper additional 753 // flags are set. 754 if ((notification.flags&Notification.FLAG_FOREGROUND_SERVICE) != 0) { 755 notification.flags |= Notification.FLAG_ONGOING_EVENT 756 | Notification.FLAG_NO_CLEAR; 757 } 758 759 if (notification.icon != 0) { 760 StatusBarNotification n = new StatusBarNotification(pkg, id, tag, 761 r.uid, r.initialPid, notification); 762 if (old != null && old.statusBarKey != null) { 763 r.statusBarKey = old.statusBarKey; 764 long identity = Binder.clearCallingIdentity(); 765 try { 766 mStatusBar.updateNotification(r.statusBarKey, n); 767 } 768 finally { 769 Binder.restoreCallingIdentity(identity); 770 } 771 } else { 772 long identity = Binder.clearCallingIdentity(); 773 try { 774 r.statusBarKey = mStatusBar.addNotification(n); 775 mAttentionLight.pulse(); 776 } 777 finally { 778 Binder.restoreCallingIdentity(identity); 779 } 780 } 781 sendAccessibilityEvent(notification, pkg); 782 } else { 783 if (old != null && old.statusBarKey != null) { 784 long identity = Binder.clearCallingIdentity(); 785 try { 786 mStatusBar.removeNotification(old.statusBarKey); 787 } 788 finally { 789 Binder.restoreCallingIdentity(identity); 790 } 791 } 792 } 793 794 // If we're not supposed to beep, vibrate, etc. then don't. 795 if (((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) == 0) 796 && (!(old != null 797 && (notification.flags & Notification.FLAG_ONLY_ALERT_ONCE) != 0 )) 798 && mSystemReady) { 799 800 final AudioManager audioManager = (AudioManager) mContext 801 .getSystemService(Context.AUDIO_SERVICE); 802 // sound 803 final boolean useDefaultSound = 804 (notification.defaults & Notification.DEFAULT_SOUND) != 0; 805 if (useDefaultSound || notification.sound != null) { 806 Uri uri; 807 if (useDefaultSound) { 808 uri = Settings.System.DEFAULT_NOTIFICATION_URI; 809 } else { 810 uri = notification.sound; 811 } 812 boolean looping = (notification.flags & Notification.FLAG_INSISTENT) != 0; 813 int audioStreamType; 814 if (notification.audioStreamType >= 0) { 815 audioStreamType = notification.audioStreamType; 816 } else { 817 audioStreamType = DEFAULT_STREAM_TYPE; 818 } 819 mSoundNotification = r; 820 // do not play notifications if stream volume is 0 821 // (typically because ringer mode is silent). 822 if (audioManager.getStreamVolume(audioStreamType) != 0) { 823 long identity = Binder.clearCallingIdentity(); 824 try { 825 mSound.play(mContext, uri, looping, audioStreamType); 826 } 827 finally { 828 Binder.restoreCallingIdentity(identity); 829 } 830 } 831 } 832 833 // vibrate 834 final boolean useDefaultVibrate = 835 (notification.defaults & Notification.DEFAULT_VIBRATE) != 0; 836 if ((useDefaultVibrate || notification.vibrate != null) 837 && audioManager.shouldVibrate(AudioManager.VIBRATE_TYPE_NOTIFICATION)) { 838 mVibrateNotification = r; 839 840 mVibrator.vibrate(useDefaultVibrate ? DEFAULT_VIBRATE_PATTERN 841 : notification.vibrate, 842 ((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1); 843 } 844 } 845 846 // this option doesn't shut off the lights 847 848 // light 849 // the most recent thing gets the light 850 mLights.remove(old); 851 if (mLedNotification == old) { 852 mLedNotification = null; 853 } 854 //Slog.i(TAG, "notification.lights=" 855 // + ((old.notification.lights.flags & Notification.FLAG_SHOW_LIGHTS) != 0)); 856 if ((notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0) { 857 mLights.add(r); 858 updateLightsLocked(); 859 } else { 860 if (old != null 861 && ((old.notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0)) { 862 updateLightsLocked(); 863 } 864 } 865 } 866 867 idOut[0] = id; 868 } 869 870 private void sendAccessibilityEvent(Notification notification, CharSequence packageName) { 871 AccessibilityManager manager = AccessibilityManager.getInstance(mContext); 872 if (!manager.isEnabled()) { 873 return; 874 } 875 876 AccessibilityEvent event = 877 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED); 878 event.setPackageName(packageName); 879 event.setClassName(Notification.class.getName()); 880 event.setParcelableData(notification); 881 CharSequence tickerText = notification.tickerText; 882 if (!TextUtils.isEmpty(tickerText)) { 883 event.getText().add(tickerText); 884 } 885 886 manager.sendAccessibilityEvent(event); 887 } 888 889 private void cancelNotificationLocked(NotificationRecord r) { 890 // status bar 891 if (r.notification.icon != 0) { 892 long identity = Binder.clearCallingIdentity(); 893 try { 894 mStatusBar.removeNotification(r.statusBarKey); 895 } 896 finally { 897 Binder.restoreCallingIdentity(identity); 898 } 899 r.statusBarKey = null; 900 } 901 902 // sound 903 if (mSoundNotification == r) { 904 mSoundNotification = null; 905 long identity = Binder.clearCallingIdentity(); 906 try { 907 mSound.stop(); 908 } 909 finally { 910 Binder.restoreCallingIdentity(identity); 911 } 912 } 913 914 // vibrate 915 if (mVibrateNotification == r) { 916 mVibrateNotification = null; 917 long identity = Binder.clearCallingIdentity(); 918 try { 919 mVibrator.cancel(); 920 } 921 finally { 922 Binder.restoreCallingIdentity(identity); 923 } 924 } 925 926 // light 927 mLights.remove(r); 928 if (mLedNotification == r) { 929 mLedNotification = null; 930 } 931 } 932 933 /** 934 * Cancels a notification ONLY if it has all of the {@code mustHaveFlags} 935 * and none of the {@code mustNotHaveFlags}. 936 */ 937 private void cancelNotification(String pkg, String tag, int id, int mustHaveFlags, 938 int mustNotHaveFlags) { 939 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL, pkg, id, mustHaveFlags); 940 941 synchronized (mNotificationList) { 942 int index = indexOfNotificationLocked(pkg, tag, id); 943 if (index >= 0) { 944 NotificationRecord r = mNotificationList.get(index); 945 946 if ((r.notification.flags & mustHaveFlags) != mustHaveFlags) { 947 return; 948 } 949 if ((r.notification.flags & mustNotHaveFlags) != 0) { 950 return; 951 } 952 953 mNotificationList.remove(index); 954 955 cancelNotificationLocked(r); 956 updateLightsLocked(); 957 } 958 } 959 } 960 961 /** 962 * Cancels all notifications from a given package that have all of the 963 * {@code mustHaveFlags}. 964 */ 965 boolean cancelAllNotificationsInt(String pkg, int mustHaveFlags, 966 int mustNotHaveFlags, boolean doit) { 967 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL_ALL, pkg, mustHaveFlags); 968 969 synchronized (mNotificationList) { 970 final int N = mNotificationList.size(); 971 boolean canceledSomething = false; 972 for (int i = N-1; i >= 0; --i) { 973 NotificationRecord r = mNotificationList.get(i); 974 if ((r.notification.flags & mustHaveFlags) != mustHaveFlags) { 975 continue; 976 } 977 if ((r.notification.flags & mustNotHaveFlags) != 0) { 978 continue; 979 } 980 if (!r.pkg.equals(pkg)) { 981 continue; 982 } 983 canceledSomething = true; 984 if (!doit) { 985 return true; 986 } 987 mNotificationList.remove(i); 988 cancelNotificationLocked(r); 989 } 990 if (canceledSomething) { 991 updateLightsLocked(); 992 } 993 return canceledSomething; 994 } 995 } 996 997 998 public void cancelNotification(String pkg, int id) { 999 cancelNotificationWithTag(pkg, null /* tag */, id); 1000 } 1001 1002 public void cancelNotificationWithTag(String pkg, String tag, int id) { 1003 checkIncomingCall(pkg); 1004 // Don't allow client applications to cancel foreground service notis. 1005 cancelNotification(pkg, tag, id, 0, 1006 Binder.getCallingUid() == Process.SYSTEM_UID 1007 ? 0 : Notification.FLAG_FOREGROUND_SERVICE); 1008 } 1009 1010 public void cancelAllNotifications(String pkg) { 1011 checkIncomingCall(pkg); 1012 1013 // Calling from user space, don't allow the canceling of actively 1014 // running foreground services. 1015 cancelAllNotificationsInt(pkg, 0, Notification.FLAG_FOREGROUND_SERVICE, true); 1016 } 1017 1018 void checkIncomingCall(String pkg) { 1019 int uid = Binder.getCallingUid(); 1020 if (uid == Process.SYSTEM_UID || uid == 0) { 1021 return; 1022 } 1023 try { 1024 ApplicationInfo ai = mContext.getPackageManager().getApplicationInfo( 1025 pkg, 0); 1026 if (ai.uid != uid) { 1027 throw new SecurityException("Calling uid " + uid + " gave package" 1028 + pkg + " which is owned by uid " + ai.uid); 1029 } 1030 } catch (PackageManager.NameNotFoundException e) { 1031 throw new SecurityException("Unknown package " + pkg); 1032 } 1033 } 1034 1035 void cancelAll() { 1036 synchronized (mNotificationList) { 1037 final int N = mNotificationList.size(); 1038 for (int i=N-1; i>=0; i--) { 1039 NotificationRecord r = mNotificationList.get(i); 1040 1041 if ((r.notification.flags & (Notification.FLAG_ONGOING_EVENT 1042 | Notification.FLAG_NO_CLEAR)) == 0) { 1043 if (r.notification.deleteIntent != null) { 1044 try { 1045 r.notification.deleteIntent.send(); 1046 } catch (PendingIntent.CanceledException ex) { 1047 // do nothing - there's no relevant way to recover, and 1048 // no reason to let this propagate 1049 Slog.w(TAG, "canceled PendingIntent for " + r.pkg, ex); 1050 } 1051 } 1052 mNotificationList.remove(i); 1053 cancelNotificationLocked(r); 1054 } 1055 } 1056 1057 updateLightsLocked(); 1058 } 1059 } 1060 1061 private void updateLights() { 1062 synchronized (mNotificationList) { 1063 updateLightsLocked(); 1064 } 1065 } 1066 1067 // lock on mNotificationList 1068 private void updateLightsLocked() 1069 { 1070 // Battery low always shows, other states only show if charging. 1071 if (mBatteryLow) { 1072 if (mBatteryCharging) { 1073 mBatteryLight.setColor(BATTERY_LOW_ARGB); 1074 } else { 1075 // Flash when battery is low and not charging 1076 mBatteryLight.setFlashing(BATTERY_LOW_ARGB, LightsService.LIGHT_FLASH_TIMED, 1077 BATTERY_BLINK_ON, BATTERY_BLINK_OFF); 1078 } 1079 } else if (mBatteryCharging) { 1080 if (mBatteryFull) { 1081 mBatteryLight.setColor(BATTERY_FULL_ARGB); 1082 } else { 1083 mBatteryLight.setColor(BATTERY_MEDIUM_ARGB); 1084 } 1085 } else { 1086 mBatteryLight.turnOff(); 1087 } 1088 1089 // clear pending pulse notification if screen is on 1090 if (mScreenOn || mLedNotification == null) { 1091 mPendingPulseNotification = false; 1092 } 1093 1094 // handle notification lights 1095 if (mLedNotification == null) { 1096 // get next notification, if any 1097 int n = mLights.size(); 1098 if (n > 0) { 1099 mLedNotification = mLights.get(n-1); 1100 } 1101 if (mLedNotification != null && !mScreenOn) { 1102 mPendingPulseNotification = true; 1103 } 1104 } 1105 1106 // we only flash if screen is off and persistent pulsing is enabled 1107 // and we are not currently in a call 1108 if (!mPendingPulseNotification || mScreenOn || mInCall) { 1109 mNotificationLight.turnOff(); 1110 } else { 1111 int ledARGB = mLedNotification.notification.ledARGB; 1112 int ledOnMS = mLedNotification.notification.ledOnMS; 1113 int ledOffMS = mLedNotification.notification.ledOffMS; 1114 if ((mLedNotification.notification.defaults & Notification.DEFAULT_LIGHTS) != 0) { 1115 ledARGB = mDefaultNotificationColor; 1116 ledOnMS = mDefaultNotificationLedOn; 1117 ledOffMS = mDefaultNotificationLedOff; 1118 } 1119 if (mNotificationPulseEnabled) { 1120 // pulse repeatedly 1121 mNotificationLight.setFlashing(ledARGB, LightsService.LIGHT_FLASH_TIMED, 1122 ledOnMS, ledOffMS); 1123 } else { 1124 // pulse only once 1125 mNotificationLight.pulse(ledARGB, ledOnMS); 1126 } 1127 } 1128 } 1129 1130 // lock on mNotificationList 1131 private int indexOfNotificationLocked(String pkg, String tag, int id) 1132 { 1133 ArrayList<NotificationRecord> list = mNotificationList; 1134 final int len = list.size(); 1135 for (int i=0; i<len; i++) { 1136 NotificationRecord r = list.get(i); 1137 if (tag == null) { 1138 if (r.tag != null) { 1139 continue; 1140 } 1141 } else { 1142 if (!tag.equals(r.tag)) { 1143 continue; 1144 } 1145 } 1146 if (r.id == id && r.pkg.equals(pkg)) { 1147 return i; 1148 } 1149 } 1150 return -1; 1151 } 1152 1153 // This is here instead of StatusBarPolicy because it is an important 1154 // security feature that we don't want people customizing the platform 1155 // to accidentally lose. 1156 private void updateAdbNotification(boolean adbEnabled) { 1157 if (adbEnabled) { 1158 if ("0".equals(SystemProperties.get("persist.adb.notify"))) { 1159 return; 1160 } 1161 if (!mAdbNotificationShown) { 1162 NotificationManager notificationManager = (NotificationManager) mContext 1163 .getSystemService(Context.NOTIFICATION_SERVICE); 1164 if (notificationManager != null) { 1165 Resources r = mContext.getResources(); 1166 CharSequence title = r.getText( 1167 com.android.internal.R.string.adb_active_notification_title); 1168 CharSequence message = r.getText( 1169 com.android.internal.R.string.adb_active_notification_message); 1170 1171 if (mAdbNotification == null) { 1172 mAdbNotification = new Notification(); 1173 mAdbNotification.icon = com.android.internal.R.drawable.stat_sys_adb; 1174 mAdbNotification.when = 0; 1175 mAdbNotification.flags = Notification.FLAG_ONGOING_EVENT; 1176 mAdbNotification.tickerText = title; 1177 mAdbNotification.defaults = 0; // please be quiet 1178 mAdbNotification.sound = null; 1179 mAdbNotification.vibrate = null; 1180 } 1181 1182 Intent intent = new Intent( 1183 Settings.ACTION_APPLICATION_DEVELOPMENT_SETTINGS); 1184 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | 1185 Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 1186 // Note: we are hard-coding the component because this is 1187 // an important security UI that we don't want anyone 1188 // intercepting. 1189 intent.setComponent(new ComponentName("com.android.settings", 1190 "com.android.settings.DevelopmentSettings")); 1191 PendingIntent pi = PendingIntent.getActivity(mContext, 0, 1192 intent, 0); 1193 1194 mAdbNotification.setLatestEventInfo(mContext, title, message, pi); 1195 1196 mAdbNotificationShown = true; 1197 notificationManager.notify( 1198 com.android.internal.R.string.adb_active_notification_title, 1199 mAdbNotification); 1200 } 1201 } 1202 1203 } else if (mAdbNotificationShown) { 1204 NotificationManager notificationManager = (NotificationManager) mContext 1205 .getSystemService(Context.NOTIFICATION_SERVICE); 1206 if (notificationManager != null) { 1207 mAdbNotificationShown = false; 1208 notificationManager.cancel( 1209 com.android.internal.R.string.adb_active_notification_title); 1210 } 1211 } 1212 } 1213 1214 private void updateNotificationPulse() { 1215 synchronized (mNotificationList) { 1216 updateLightsLocked(); 1217 } 1218 } 1219 1220 // ====================================================================== 1221 @Override 1222 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1223 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1224 != PackageManager.PERMISSION_GRANTED) { 1225 pw.println("Permission Denial: can't dump NotificationManager from from pid=" 1226 + Binder.getCallingPid() 1227 + ", uid=" + Binder.getCallingUid()); 1228 return; 1229 } 1230 1231 pw.println("Current Notification Manager state:"); 1232 1233 int N; 1234 1235 synchronized (mToastQueue) { 1236 N = mToastQueue.size(); 1237 if (N > 0) { 1238 pw.println(" Toast Queue:"); 1239 for (int i=0; i<N; i++) { 1240 mToastQueue.get(i).dump(pw, " "); 1241 } 1242 pw.println(" "); 1243 } 1244 1245 } 1246 1247 synchronized (mNotificationList) { 1248 N = mNotificationList.size(); 1249 if (N > 0) { 1250 pw.println(" Notification List:"); 1251 for (int i=0; i<N; i++) { 1252 mNotificationList.get(i).dump(pw, " ", mContext); 1253 } 1254 pw.println(" "); 1255 } 1256 1257 N = mLights.size(); 1258 if (N > 0) { 1259 pw.println(" Lights List:"); 1260 for (int i=0; i<N; i++) { 1261 mLights.get(i).dump(pw, " ", mContext); 1262 } 1263 pw.println(" "); 1264 } 1265 1266 pw.println(" mSoundNotification=" + mSoundNotification); 1267 pw.println(" mSound=" + mSound); 1268 pw.println(" mVibrateNotification=" + mVibrateNotification); 1269 pw.println(" mDisabledNotifications=0x" + Integer.toHexString(mDisabledNotifications)); 1270 pw.println(" mSystemReady=" + mSystemReady); 1271 } 1272 } 1273} 1274