NotificationManagerService.java revision 40bbf9295d5245d3917629ce15f7b37670aef1ac
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.UsbManager; 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(UsbManager.ACTION_USB_STATE)) { 356 Bundle extras = intent.getExtras(); 357 boolean usbConnected = extras.getBoolean(UsbManager.USB_CONNECTED); 358 boolean adbEnabled = (UsbManager.USB_FUNCTION_ENABLED.equals( 359 extras.getString(UsbManager.USB_FUNCTION_ADB))); 360 updateAdbNotification(usbConnected && adbEnabled); 361 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED) 362 || action.equals(Intent.ACTION_PACKAGE_RESTARTED) 363 || (queryRestart=action.equals(Intent.ACTION_QUERY_PACKAGE_RESTART)) 364 || action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 365 String pkgList[] = null; 366 if (action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) { 367 pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 368 } else if (queryRestart) { 369 pkgList = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES); 370 } else { 371 Uri uri = intent.getData(); 372 if (uri == null) { 373 return; 374 } 375 String pkgName = uri.getSchemeSpecificPart(); 376 if (pkgName == null) { 377 return; 378 } 379 pkgList = new String[]{pkgName}; 380 } 381 if (pkgList != null && (pkgList.length > 0)) { 382 for (String pkgName : pkgList) { 383 cancelAllNotificationsInt(pkgName, 0, 0, !queryRestart); 384 } 385 } 386 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 387 mScreenOn = true; 388 updateNotificationPulse(); 389 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 390 mScreenOn = false; 391 updateNotificationPulse(); 392 } else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) { 393 mInCall = (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_OFFHOOK)); 394 updateNotificationPulse(); 395 } 396 } 397 }; 398 399 class SettingsObserver extends ContentObserver { 400 SettingsObserver(Handler handler) { 401 super(handler); 402 } 403 404 void observe() { 405 ContentResolver resolver = mContext.getContentResolver(); 406 resolver.registerContentObserver(Settings.System.getUriFor( 407 Settings.System.NOTIFICATION_LIGHT_PULSE), false, this); 408 update(); 409 } 410 411 @Override public void onChange(boolean selfChange) { 412 update(); 413 } 414 415 public void update() { 416 ContentResolver resolver = mContext.getContentResolver(); 417 boolean pulseEnabled = Settings.System.getInt(resolver, 418 Settings.System.NOTIFICATION_LIGHT_PULSE, 0) != 0; 419 if (mNotificationPulseEnabled != pulseEnabled) { 420 mNotificationPulseEnabled = pulseEnabled; 421 updateNotificationPulse(); 422 } 423 } 424 } 425 426 NotificationManagerService(Context context, StatusBarManagerService statusBar, 427 LightsService lights) 428 { 429 super(); 430 mContext = context; 431 mLightsService = lights; 432 mAm = ActivityManagerNative.getDefault(); 433 mSound = new NotificationPlayer(TAG); 434 mSound.setUsesWakeLock(context); 435 mToastQueue = new ArrayList<ToastRecord>(); 436 mHandler = new WorkerHandler(); 437 438 mStatusBar = statusBar; 439 statusBar.setNotificationCallbacks(mNotificationCallbacks); 440 441 mBatteryLight = lights.getLight(LightsService.LIGHT_ID_BATTERY); 442 mNotificationLight = lights.getLight(LightsService.LIGHT_ID_NOTIFICATIONS); 443 mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION); 444 445 Resources resources = mContext.getResources(); 446 mDefaultNotificationColor = resources.getColor( 447 com.android.internal.R.color.config_defaultNotificationColor); 448 mDefaultNotificationLedOn = resources.getInteger( 449 com.android.internal.R.integer.config_defaultNotificationLedOn); 450 mDefaultNotificationLedOff = resources.getInteger( 451 com.android.internal.R.integer.config_defaultNotificationLedOff); 452 453 // Don't start allowing notifications until the setup wizard has run once. 454 // After that, including subsequent boots, init with notifications turned on. 455 // This works on the first boot because the setup wizard will toggle this 456 // flag at least once and we'll go back to 0 after that. 457 if (0 == Settings.Secure.getInt(mContext.getContentResolver(), 458 Settings.Secure.DEVICE_PROVISIONED, 0)) { 459 mDisabledNotifications = StatusBarManager.DISABLE_NOTIFICATION_ALERTS; 460 } 461 462 // register for battery changed notifications 463 IntentFilter filter = new IntentFilter(); 464 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 465 filter.addAction(UsbManager.ACTION_USB_STATE); 466 filter.addAction(Intent.ACTION_SCREEN_ON); 467 filter.addAction(Intent.ACTION_SCREEN_OFF); 468 filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED); 469 mContext.registerReceiver(mIntentReceiver, filter); 470 IntentFilter pkgFilter = new IntentFilter(); 471 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 472 pkgFilter.addAction(Intent.ACTION_PACKAGE_RESTARTED); 473 pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART); 474 pkgFilter.addDataScheme("package"); 475 mContext.registerReceiver(mIntentReceiver, pkgFilter); 476 IntentFilter sdFilter = new IntentFilter(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 477 mContext.registerReceiver(mIntentReceiver, sdFilter); 478 479 SettingsObserver observer = new SettingsObserver(mHandler); 480 observer.observe(); 481 } 482 483 void systemReady() { 484 // no beeping until we're basically done booting 485 mSystemReady = true; 486 } 487 488 // Toasts 489 // ============================================================================ 490 public void enqueueToast(String pkg, ITransientNotification callback, int duration) 491 { 492 if (DBG) Slog.i(TAG, "enqueueToast pkg=" + pkg + " callback=" + callback + " duration=" + duration); 493 494 if (pkg == null || callback == null) { 495 Slog.e(TAG, "Not doing toast. pkg=" + pkg + " callback=" + callback); 496 return ; 497 } 498 499 synchronized (mToastQueue) { 500 int callingPid = Binder.getCallingPid(); 501 long callingId = Binder.clearCallingIdentity(); 502 try { 503 ToastRecord record; 504 int index = indexOfToastLocked(pkg, callback); 505 // If it's already in the queue, we update it in place, we don't 506 // move it to the end of the queue. 507 if (index >= 0) { 508 record = mToastQueue.get(index); 509 record.update(duration); 510 } else { 511 record = new ToastRecord(callingPid, pkg, callback, duration); 512 mToastQueue.add(record); 513 index = mToastQueue.size() - 1; 514 keepProcessAliveLocked(callingPid); 515 } 516 // If it's at index 0, it's the current toast. It doesn't matter if it's 517 // new or just been updated. Call back and tell it to show itself. 518 // If the callback fails, this will remove it from the list, so don't 519 // assume that it's valid after this. 520 if (index == 0) { 521 showNextToastLocked(); 522 } 523 } finally { 524 Binder.restoreCallingIdentity(callingId); 525 } 526 } 527 } 528 529 public void cancelToast(String pkg, ITransientNotification callback) { 530 Slog.i(TAG, "cancelToast pkg=" + pkg + " callback=" + callback); 531 532 if (pkg == null || callback == null) { 533 Slog.e(TAG, "Not cancelling notification. pkg=" + pkg + " callback=" + callback); 534 return ; 535 } 536 537 synchronized (mToastQueue) { 538 long callingId = Binder.clearCallingIdentity(); 539 try { 540 int index = indexOfToastLocked(pkg, callback); 541 if (index >= 0) { 542 cancelToastLocked(index); 543 } else { 544 Slog.w(TAG, "Toast already cancelled. pkg=" + pkg + " callback=" + callback); 545 } 546 } finally { 547 Binder.restoreCallingIdentity(callingId); 548 } 549 } 550 } 551 552 private void showNextToastLocked() { 553 ToastRecord record = mToastQueue.get(0); 554 while (record != null) { 555 if (DBG) Slog.d(TAG, "Show pkg=" + record.pkg + " callback=" + record.callback); 556 try { 557 record.callback.show(); 558 scheduleTimeoutLocked(record, false); 559 return; 560 } catch (RemoteException e) { 561 Slog.w(TAG, "Object died trying to show notification " + record.callback 562 + " in package " + record.pkg); 563 // remove it from the list and let the process die 564 int index = mToastQueue.indexOf(record); 565 if (index >= 0) { 566 mToastQueue.remove(index); 567 } 568 keepProcessAliveLocked(record.pid); 569 if (mToastQueue.size() > 0) { 570 record = mToastQueue.get(0); 571 } else { 572 record = null; 573 } 574 } 575 } 576 } 577 578 private void cancelToastLocked(int index) { 579 ToastRecord record = mToastQueue.get(index); 580 try { 581 record.callback.hide(); 582 } catch (RemoteException e) { 583 Slog.w(TAG, "Object died trying to hide notification " + record.callback 584 + " in package " + record.pkg); 585 // don't worry about this, we're about to remove it from 586 // the list anyway 587 } 588 mToastQueue.remove(index); 589 keepProcessAliveLocked(record.pid); 590 if (mToastQueue.size() > 0) { 591 // Show the next one. If the callback fails, this will remove 592 // it from the list, so don't assume that the list hasn't changed 593 // after this point. 594 showNextToastLocked(); 595 } 596 } 597 598 private void scheduleTimeoutLocked(ToastRecord r, boolean immediate) 599 { 600 Message m = Message.obtain(mHandler, MESSAGE_TIMEOUT, r); 601 long delay = immediate ? 0 : (r.duration == Toast.LENGTH_LONG ? LONG_DELAY : SHORT_DELAY); 602 mHandler.removeCallbacksAndMessages(r); 603 mHandler.sendMessageDelayed(m, delay); 604 } 605 606 private void handleTimeout(ToastRecord record) 607 { 608 if (DBG) Slog.d(TAG, "Timeout pkg=" + record.pkg + " callback=" + record.callback); 609 synchronized (mToastQueue) { 610 int index = indexOfToastLocked(record.pkg, record.callback); 611 if (index >= 0) { 612 cancelToastLocked(index); 613 } 614 } 615 } 616 617 // lock on mToastQueue 618 private int indexOfToastLocked(String pkg, ITransientNotification callback) 619 { 620 IBinder cbak = callback.asBinder(); 621 ArrayList<ToastRecord> list = mToastQueue; 622 int len = list.size(); 623 for (int i=0; i<len; i++) { 624 ToastRecord r = list.get(i); 625 if (r.pkg.equals(pkg) && r.callback.asBinder() == cbak) { 626 return i; 627 } 628 } 629 return -1; 630 } 631 632 // lock on mToastQueue 633 private void keepProcessAliveLocked(int pid) 634 { 635 int toastCount = 0; // toasts from this pid 636 ArrayList<ToastRecord> list = mToastQueue; 637 int N = list.size(); 638 for (int i=0; i<N; i++) { 639 ToastRecord r = list.get(i); 640 if (r.pid == pid) { 641 toastCount++; 642 } 643 } 644 try { 645 mAm.setProcessForeground(mForegroundToken, pid, toastCount > 0); 646 } catch (RemoteException e) { 647 // Shouldn't happen. 648 } 649 } 650 651 private final class WorkerHandler extends Handler 652 { 653 @Override 654 public void handleMessage(Message msg) 655 { 656 switch (msg.what) 657 { 658 case MESSAGE_TIMEOUT: 659 handleTimeout((ToastRecord)msg.obj); 660 break; 661 } 662 } 663 } 664 665 666 // Notifications 667 // ============================================================================ 668 public void enqueueNotification(String pkg, int id, Notification notification, int[] idOut) 669 { 670 enqueueNotificationWithTag(pkg, null /* tag */, id, notification, idOut); 671 } 672 673 public void enqueueNotificationWithTag(String pkg, String tag, int id, Notification notification, 674 int[] idOut) 675 { 676 enqueueNotificationInternal(pkg, Binder.getCallingUid(), Binder.getCallingPid(), 677 tag, id, notification, idOut); 678 } 679 680 // Not exposed via Binder; for system use only (otherwise malicious apps could spoof the 681 // uid/pid of another application) 682 public void enqueueNotificationInternal(String pkg, int callingUid, int callingPid, 683 String tag, int id, Notification notification, int[] idOut) 684 { 685 checkIncomingCall(pkg); 686 687 // Limit the number of notifications that any given package except the android 688 // package can enqueue. Prevents DOS attacks and deals with leaks. 689 if (!"android".equals(pkg)) { 690 synchronized (mNotificationList) { 691 int count = 0; 692 final int N = mNotificationList.size(); 693 for (int i=0; i<N; i++) { 694 final NotificationRecord r = mNotificationList.get(i); 695 if (r.pkg.equals(pkg)) { 696 count++; 697 if (count >= MAX_PACKAGE_NOTIFICATIONS) { 698 Slog.e(TAG, "Package has already posted " + count 699 + " notifications. Not showing more. package=" + pkg); 700 return; 701 } 702 } 703 } 704 } 705 } 706 707 // This conditional is a dirty hack to limit the logging done on 708 // behalf of the download manager without affecting other apps. 709 if (!pkg.equals("com.android.providers.downloads") 710 || Log.isLoggable("DownloadManager", Log.VERBOSE)) { 711 EventLog.writeEvent(EventLogTags.NOTIFICATION_ENQUEUE, pkg, id, notification.toString()); 712 } 713 714 if (pkg == null || notification == null) { 715 throw new IllegalArgumentException("null not allowed: pkg=" + pkg 716 + " id=" + id + " notification=" + notification); 717 } 718 if (notification.icon != 0) { 719 if (notification.contentView == null) { 720 throw new IllegalArgumentException("contentView required: pkg=" + pkg 721 + " id=" + id + " notification=" + notification); 722 } 723 if (notification.contentIntent == null) { 724 throw new IllegalArgumentException("contentIntent required: pkg=" + pkg 725 + " id=" + id + " notification=" + notification); 726 } 727 } 728 729 synchronized (mNotificationList) { 730 NotificationRecord r = new NotificationRecord(pkg, tag, id, 731 callingUid, callingPid, notification); 732 NotificationRecord old = null; 733 734 int index = indexOfNotificationLocked(pkg, tag, id); 735 if (index < 0) { 736 mNotificationList.add(r); 737 } else { 738 old = mNotificationList.remove(index); 739 mNotificationList.add(index, r); 740 // Make sure we don't lose the foreground service state. 741 if (old != null) { 742 notification.flags |= 743 old.notification.flags&Notification.FLAG_FOREGROUND_SERVICE; 744 } 745 } 746 747 // Ensure if this is a foreground service that the proper additional 748 // flags are set. 749 if ((notification.flags&Notification.FLAG_FOREGROUND_SERVICE) != 0) { 750 notification.flags |= Notification.FLAG_ONGOING_EVENT 751 | Notification.FLAG_NO_CLEAR; 752 } 753 754 if (notification.icon != 0) { 755 StatusBarNotification n = new StatusBarNotification(pkg, id, tag, 756 r.uid, r.initialPid, notification); 757 if (old != null && old.statusBarKey != null) { 758 r.statusBarKey = old.statusBarKey; 759 long identity = Binder.clearCallingIdentity(); 760 try { 761 mStatusBar.updateNotification(r.statusBarKey, n); 762 } 763 finally { 764 Binder.restoreCallingIdentity(identity); 765 } 766 } else { 767 long identity = Binder.clearCallingIdentity(); 768 try { 769 r.statusBarKey = mStatusBar.addNotification(n); 770 mAttentionLight.pulse(); 771 } 772 finally { 773 Binder.restoreCallingIdentity(identity); 774 } 775 } 776 sendAccessibilityEvent(notification, pkg); 777 } else { 778 if (old != null && old.statusBarKey != null) { 779 long identity = Binder.clearCallingIdentity(); 780 try { 781 mStatusBar.removeNotification(old.statusBarKey); 782 } 783 finally { 784 Binder.restoreCallingIdentity(identity); 785 } 786 } 787 } 788 789 // If we're not supposed to beep, vibrate, etc. then don't. 790 if (((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) == 0) 791 && (!(old != null 792 && (notification.flags & Notification.FLAG_ONLY_ALERT_ONCE) != 0 )) 793 && mSystemReady) { 794 795 final AudioManager audioManager = (AudioManager) mContext 796 .getSystemService(Context.AUDIO_SERVICE); 797 // sound 798 final boolean useDefaultSound = 799 (notification.defaults & Notification.DEFAULT_SOUND) != 0; 800 if (useDefaultSound || notification.sound != null) { 801 Uri uri; 802 if (useDefaultSound) { 803 uri = Settings.System.DEFAULT_NOTIFICATION_URI; 804 } else { 805 uri = notification.sound; 806 } 807 boolean looping = (notification.flags & Notification.FLAG_INSISTENT) != 0; 808 int audioStreamType; 809 if (notification.audioStreamType >= 0) { 810 audioStreamType = notification.audioStreamType; 811 } else { 812 audioStreamType = DEFAULT_STREAM_TYPE; 813 } 814 mSoundNotification = r; 815 // do not play notifications if stream volume is 0 816 // (typically because ringer mode is silent). 817 if (audioManager.getStreamVolume(audioStreamType) != 0) { 818 long identity = Binder.clearCallingIdentity(); 819 try { 820 mSound.play(mContext, uri, looping, audioStreamType); 821 } 822 finally { 823 Binder.restoreCallingIdentity(identity); 824 } 825 } 826 } 827 828 // vibrate 829 final boolean useDefaultVibrate = 830 (notification.defaults & Notification.DEFAULT_VIBRATE) != 0; 831 if ((useDefaultVibrate || notification.vibrate != null) 832 && audioManager.shouldVibrate(AudioManager.VIBRATE_TYPE_NOTIFICATION)) { 833 mVibrateNotification = r; 834 835 mVibrator.vibrate(useDefaultVibrate ? DEFAULT_VIBRATE_PATTERN 836 : notification.vibrate, 837 ((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1); 838 } 839 } 840 841 // this option doesn't shut off the lights 842 843 // light 844 // the most recent thing gets the light 845 mLights.remove(old); 846 if (mLedNotification == old) { 847 mLedNotification = null; 848 } 849 //Slog.i(TAG, "notification.lights=" 850 // + ((old.notification.lights.flags & Notification.FLAG_SHOW_LIGHTS) != 0)); 851 if ((notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0) { 852 mLights.add(r); 853 updateLightsLocked(); 854 } else { 855 if (old != null 856 && ((old.notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0)) { 857 updateLightsLocked(); 858 } 859 } 860 } 861 862 idOut[0] = id; 863 } 864 865 private void sendAccessibilityEvent(Notification notification, CharSequence packageName) { 866 AccessibilityManager manager = AccessibilityManager.getInstance(mContext); 867 if (!manager.isEnabled()) { 868 return; 869 } 870 871 AccessibilityEvent event = 872 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED); 873 event.setPackageName(packageName); 874 event.setClassName(Notification.class.getName()); 875 event.setParcelableData(notification); 876 CharSequence tickerText = notification.tickerText; 877 if (!TextUtils.isEmpty(tickerText)) { 878 event.getText().add(tickerText); 879 } 880 881 manager.sendAccessibilityEvent(event); 882 } 883 884 private void cancelNotificationLocked(NotificationRecord r) { 885 // status bar 886 if (r.notification.icon != 0) { 887 long identity = Binder.clearCallingIdentity(); 888 try { 889 mStatusBar.removeNotification(r.statusBarKey); 890 } 891 finally { 892 Binder.restoreCallingIdentity(identity); 893 } 894 r.statusBarKey = null; 895 } 896 897 // sound 898 if (mSoundNotification == r) { 899 mSoundNotification = null; 900 long identity = Binder.clearCallingIdentity(); 901 try { 902 mSound.stop(); 903 } 904 finally { 905 Binder.restoreCallingIdentity(identity); 906 } 907 } 908 909 // vibrate 910 if (mVibrateNotification == r) { 911 mVibrateNotification = null; 912 long identity = Binder.clearCallingIdentity(); 913 try { 914 mVibrator.cancel(); 915 } 916 finally { 917 Binder.restoreCallingIdentity(identity); 918 } 919 } 920 921 // light 922 mLights.remove(r); 923 if (mLedNotification == r) { 924 mLedNotification = null; 925 } 926 } 927 928 /** 929 * Cancels a notification ONLY if it has all of the {@code mustHaveFlags} 930 * and none of the {@code mustNotHaveFlags}. 931 */ 932 private void cancelNotification(String pkg, String tag, int id, int mustHaveFlags, 933 int mustNotHaveFlags) { 934 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL, pkg, id, mustHaveFlags); 935 936 synchronized (mNotificationList) { 937 int index = indexOfNotificationLocked(pkg, tag, id); 938 if (index >= 0) { 939 NotificationRecord r = mNotificationList.get(index); 940 941 if ((r.notification.flags & mustHaveFlags) != mustHaveFlags) { 942 return; 943 } 944 if ((r.notification.flags & mustNotHaveFlags) != 0) { 945 return; 946 } 947 948 mNotificationList.remove(index); 949 950 cancelNotificationLocked(r); 951 updateLightsLocked(); 952 } 953 } 954 } 955 956 /** 957 * Cancels all notifications from a given package that have all of the 958 * {@code mustHaveFlags}. 959 */ 960 boolean cancelAllNotificationsInt(String pkg, int mustHaveFlags, 961 int mustNotHaveFlags, boolean doit) { 962 EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL_ALL, pkg, mustHaveFlags); 963 964 synchronized (mNotificationList) { 965 final int N = mNotificationList.size(); 966 boolean canceledSomething = false; 967 for (int i = N-1; i >= 0; --i) { 968 NotificationRecord r = mNotificationList.get(i); 969 if ((r.notification.flags & mustHaveFlags) != mustHaveFlags) { 970 continue; 971 } 972 if ((r.notification.flags & mustNotHaveFlags) != 0) { 973 continue; 974 } 975 if (!r.pkg.equals(pkg)) { 976 continue; 977 } 978 canceledSomething = true; 979 if (!doit) { 980 return true; 981 } 982 mNotificationList.remove(i); 983 cancelNotificationLocked(r); 984 } 985 if (canceledSomething) { 986 updateLightsLocked(); 987 } 988 return canceledSomething; 989 } 990 } 991 992 993 public void cancelNotification(String pkg, int id) { 994 cancelNotificationWithTag(pkg, null /* tag */, id); 995 } 996 997 public void cancelNotificationWithTag(String pkg, String tag, int id) { 998 checkIncomingCall(pkg); 999 // Don't allow client applications to cancel foreground service notis. 1000 cancelNotification(pkg, tag, id, 0, 1001 Binder.getCallingUid() == Process.SYSTEM_UID 1002 ? 0 : Notification.FLAG_FOREGROUND_SERVICE); 1003 } 1004 1005 public void cancelAllNotifications(String pkg) { 1006 checkIncomingCall(pkg); 1007 1008 // Calling from user space, don't allow the canceling of actively 1009 // running foreground services. 1010 cancelAllNotificationsInt(pkg, 0, Notification.FLAG_FOREGROUND_SERVICE, true); 1011 } 1012 1013 void checkIncomingCall(String pkg) { 1014 int uid = Binder.getCallingUid(); 1015 if (uid == Process.SYSTEM_UID || uid == 0) { 1016 return; 1017 } 1018 try { 1019 ApplicationInfo ai = mContext.getPackageManager().getApplicationInfo( 1020 pkg, 0); 1021 if (ai.uid != uid) { 1022 throw new SecurityException("Calling uid " + uid + " gave package" 1023 + pkg + " which is owned by uid " + ai.uid); 1024 } 1025 } catch (PackageManager.NameNotFoundException e) { 1026 throw new SecurityException("Unknown package " + pkg); 1027 } 1028 } 1029 1030 void cancelAll() { 1031 synchronized (mNotificationList) { 1032 final int N = mNotificationList.size(); 1033 for (int i=N-1; i>=0; i--) { 1034 NotificationRecord r = mNotificationList.get(i); 1035 1036 if ((r.notification.flags & (Notification.FLAG_ONGOING_EVENT 1037 | Notification.FLAG_NO_CLEAR)) == 0) { 1038 if (r.notification.deleteIntent != null) { 1039 try { 1040 r.notification.deleteIntent.send(); 1041 } catch (PendingIntent.CanceledException ex) { 1042 // do nothing - there's no relevant way to recover, and 1043 // no reason to let this propagate 1044 Slog.w(TAG, "canceled PendingIntent for " + r.pkg, ex); 1045 } 1046 } 1047 mNotificationList.remove(i); 1048 cancelNotificationLocked(r); 1049 } 1050 } 1051 1052 updateLightsLocked(); 1053 } 1054 } 1055 1056 private void updateLights() { 1057 synchronized (mNotificationList) { 1058 updateLightsLocked(); 1059 } 1060 } 1061 1062 // lock on mNotificationList 1063 private void updateLightsLocked() 1064 { 1065 // Battery low always shows, other states only show if charging. 1066 if (mBatteryLow) { 1067 if (mBatteryCharging) { 1068 mBatteryLight.setColor(BATTERY_LOW_ARGB); 1069 } else { 1070 // Flash when battery is low and not charging 1071 mBatteryLight.setFlashing(BATTERY_LOW_ARGB, LightsService.LIGHT_FLASH_TIMED, 1072 BATTERY_BLINK_ON, BATTERY_BLINK_OFF); 1073 } 1074 } else if (mBatteryCharging) { 1075 if (mBatteryFull) { 1076 mBatteryLight.setColor(BATTERY_FULL_ARGB); 1077 } else { 1078 mBatteryLight.setColor(BATTERY_MEDIUM_ARGB); 1079 } 1080 } else { 1081 mBatteryLight.turnOff(); 1082 } 1083 1084 // clear pending pulse notification if screen is on 1085 if (mScreenOn || mLedNotification == null) { 1086 mPendingPulseNotification = false; 1087 } 1088 1089 // handle notification lights 1090 if (mLedNotification == null) { 1091 // get next notification, if any 1092 int n = mLights.size(); 1093 if (n > 0) { 1094 mLedNotification = mLights.get(n-1); 1095 } 1096 if (mLedNotification != null && !mScreenOn) { 1097 mPendingPulseNotification = true; 1098 } 1099 } 1100 1101 // we only flash if screen is off and persistent pulsing is enabled 1102 // and we are not currently in a call 1103 if (!mPendingPulseNotification || mScreenOn || mInCall) { 1104 mNotificationLight.turnOff(); 1105 } else { 1106 int ledARGB = mLedNotification.notification.ledARGB; 1107 int ledOnMS = mLedNotification.notification.ledOnMS; 1108 int ledOffMS = mLedNotification.notification.ledOffMS; 1109 if ((mLedNotification.notification.defaults & Notification.DEFAULT_LIGHTS) != 0) { 1110 ledARGB = mDefaultNotificationColor; 1111 ledOnMS = mDefaultNotificationLedOn; 1112 ledOffMS = mDefaultNotificationLedOff; 1113 } 1114 if (mNotificationPulseEnabled) { 1115 // pulse repeatedly 1116 mNotificationLight.setFlashing(ledARGB, LightsService.LIGHT_FLASH_TIMED, 1117 ledOnMS, ledOffMS); 1118 } else { 1119 // pulse only once 1120 mNotificationLight.pulse(ledARGB, ledOnMS); 1121 } 1122 } 1123 } 1124 1125 // lock on mNotificationList 1126 private int indexOfNotificationLocked(String pkg, String tag, int id) 1127 { 1128 ArrayList<NotificationRecord> list = mNotificationList; 1129 final int len = list.size(); 1130 for (int i=0; i<len; i++) { 1131 NotificationRecord r = list.get(i); 1132 if (tag == null) { 1133 if (r.tag != null) { 1134 continue; 1135 } 1136 } else { 1137 if (!tag.equals(r.tag)) { 1138 continue; 1139 } 1140 } 1141 if (r.id == id && r.pkg.equals(pkg)) { 1142 return i; 1143 } 1144 } 1145 return -1; 1146 } 1147 1148 // This is here instead of StatusBarPolicy because it is an important 1149 // security feature that we don't want people customizing the platform 1150 // to accidentally lose. 1151 private void updateAdbNotification(boolean adbEnabled) { 1152 if (adbEnabled) { 1153 if ("0".equals(SystemProperties.get("persist.adb.notify"))) { 1154 return; 1155 } 1156 if (!mAdbNotificationShown) { 1157 NotificationManager notificationManager = (NotificationManager) mContext 1158 .getSystemService(Context.NOTIFICATION_SERVICE); 1159 if (notificationManager != null) { 1160 Resources r = mContext.getResources(); 1161 CharSequence title = r.getText( 1162 com.android.internal.R.string.adb_active_notification_title); 1163 CharSequence message = r.getText( 1164 com.android.internal.R.string.adb_active_notification_message); 1165 1166 if (mAdbNotification == null) { 1167 mAdbNotification = new Notification(); 1168 mAdbNotification.icon = com.android.internal.R.drawable.stat_sys_adb; 1169 mAdbNotification.when = 0; 1170 mAdbNotification.flags = Notification.FLAG_ONGOING_EVENT; 1171 mAdbNotification.tickerText = title; 1172 mAdbNotification.defaults = 0; // please be quiet 1173 mAdbNotification.sound = null; 1174 mAdbNotification.vibrate = null; 1175 } 1176 1177 Intent intent = new Intent( 1178 Settings.ACTION_APPLICATION_DEVELOPMENT_SETTINGS); 1179 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | 1180 Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 1181 // Note: we are hard-coding the component because this is 1182 // an important security UI that we don't want anyone 1183 // intercepting. 1184 intent.setComponent(new ComponentName("com.android.settings", 1185 "com.android.settings.DevelopmentSettings")); 1186 PendingIntent pi = PendingIntent.getActivity(mContext, 0, 1187 intent, 0); 1188 1189 mAdbNotification.setLatestEventInfo(mContext, title, message, pi); 1190 1191 mAdbNotificationShown = true; 1192 notificationManager.notify( 1193 com.android.internal.R.string.adb_active_notification_title, 1194 mAdbNotification); 1195 } 1196 } 1197 1198 } else if (mAdbNotificationShown) { 1199 NotificationManager notificationManager = (NotificationManager) mContext 1200 .getSystemService(Context.NOTIFICATION_SERVICE); 1201 if (notificationManager != null) { 1202 mAdbNotificationShown = false; 1203 notificationManager.cancel( 1204 com.android.internal.R.string.adb_active_notification_title); 1205 } 1206 } 1207 } 1208 1209 private void updateNotificationPulse() { 1210 synchronized (mNotificationList) { 1211 updateLightsLocked(); 1212 } 1213 } 1214 1215 // ====================================================================== 1216 @Override 1217 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1218 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1219 != PackageManager.PERMISSION_GRANTED) { 1220 pw.println("Permission Denial: can't dump NotificationManager from from pid=" 1221 + Binder.getCallingPid() 1222 + ", uid=" + Binder.getCallingUid()); 1223 return; 1224 } 1225 1226 pw.println("Current Notification Manager state:"); 1227 1228 int N; 1229 1230 synchronized (mToastQueue) { 1231 N = mToastQueue.size(); 1232 if (N > 0) { 1233 pw.println(" Toast Queue:"); 1234 for (int i=0; i<N; i++) { 1235 mToastQueue.get(i).dump(pw, " "); 1236 } 1237 pw.println(" "); 1238 } 1239 1240 } 1241 1242 synchronized (mNotificationList) { 1243 N = mNotificationList.size(); 1244 if (N > 0) { 1245 pw.println(" Notification List:"); 1246 for (int i=0; i<N; i++) { 1247 mNotificationList.get(i).dump(pw, " ", mContext); 1248 } 1249 pw.println(" "); 1250 } 1251 1252 N = mLights.size(); 1253 if (N > 0) { 1254 pw.println(" Lights List:"); 1255 for (int i=0; i<N; i++) { 1256 mLights.get(i).dump(pw, " ", mContext); 1257 } 1258 pw.println(" "); 1259 } 1260 1261 pw.println(" mSoundNotification=" + mSoundNotification); 1262 pw.println(" mSound=" + mSound); 1263 pw.println(" mVibrateNotification=" + mVibrateNotification); 1264 pw.println(" mDisabledNotifications=0x" + Integer.toHexString(mDisabledNotifications)); 1265 pw.println(" mSystemReady=" + mSystemReady); 1266 } 1267 } 1268} 1269