TvInputManagerService.java revision 8e6b51b0fb810ac990c863cc0579e2b2700ab7d6
1/* 2 * Copyright (C) 2014 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.tv; 18 19import static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED; 20import static android.media.tv.TvInputManager.INPUT_STATE_DISCONNECTED; 21 22import android.app.ActivityManager; 23import android.content.BroadcastReceiver; 24import android.content.ComponentName; 25import android.content.ContentProviderOperation; 26import android.content.ContentProviderResult; 27import android.content.ContentResolver; 28import android.content.ContentUris; 29import android.content.ContentValues; 30import android.content.Context; 31import android.content.Intent; 32import android.content.IntentFilter; 33import android.content.OperationApplicationException; 34import android.content.ServiceConnection; 35import android.content.pm.PackageManager; 36import android.content.pm.ResolveInfo; 37import android.content.pm.ServiceInfo; 38import android.database.Cursor; 39import android.graphics.Rect; 40import android.hardware.hdmi.HdmiCecDeviceInfo; 41import android.media.tv.ITvInputClient; 42import android.media.tv.ITvInputHardware; 43import android.media.tv.ITvInputHardwareCallback; 44import android.media.tv.ITvInputManager; 45import android.media.tv.ITvInputManagerCallback; 46import android.media.tv.ITvInputService; 47import android.media.tv.ITvInputServiceCallback; 48import android.media.tv.ITvInputSession; 49import android.media.tv.ITvInputSessionCallback; 50import android.media.tv.TvContract; 51import android.media.tv.TvInputHardwareInfo; 52import android.media.tv.TvInputInfo; 53import android.media.tv.TvInputService; 54import android.media.tv.TvTrackInfo; 55import android.net.Uri; 56import android.os.Binder; 57import android.os.Bundle; 58import android.os.Handler; 59import android.os.IBinder; 60import android.os.Looper; 61import android.os.Message; 62import android.os.Process; 63import android.os.RemoteException; 64import android.os.UserHandle; 65import android.util.Slog; 66import android.util.SparseArray; 67import android.view.InputChannel; 68import android.view.Surface; 69 70import com.android.internal.content.PackageMonitor; 71import com.android.internal.os.SomeArgs; 72import com.android.internal.util.IndentingPrintWriter; 73import com.android.server.IoThread; 74import com.android.server.SystemService; 75 76import org.xmlpull.v1.XmlPullParserException; 77 78import java.io.FileDescriptor; 79import java.io.IOException; 80import java.io.PrintWriter; 81import java.util.ArrayList; 82import java.util.HashMap; 83import java.util.HashSet; 84import java.util.Iterator; 85import java.util.List; 86import java.util.Map; 87import java.util.Set; 88 89/** This class provides a system service that manages television inputs. */ 90public final class TvInputManagerService extends SystemService { 91 // STOPSHIP: Turn debugging off. 92 private static final boolean DEBUG = true; 93 private static final String TAG = "TvInputManagerService"; 94 95 private final Context mContext; 96 private final TvInputHardwareManager mTvInputHardwareManager; 97 98 private final ContentResolver mContentResolver; 99 100 // A global lock. 101 private final Object mLock = new Object(); 102 103 // ID of the current user. 104 private int mCurrentUserId = UserHandle.USER_OWNER; 105 106 // A map from user id to UserState. 107 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 108 109 private final Handler mLogHandler; 110 111 public TvInputManagerService(Context context) { 112 super(context); 113 114 mContext = context; 115 mContentResolver = context.getContentResolver(); 116 mLogHandler = new LogHandler(IoThread.get().getLooper()); 117 118 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 119 120 synchronized (mLock) { 121 mUserStates.put(mCurrentUserId, new UserState()); 122 } 123 } 124 125 @Override 126 public void onStart() { 127 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 128 } 129 130 @Override 131 public void onBootPhase(int phase) { 132 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 133 registerBroadcastReceivers(); 134 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 135 synchronized (mLock) { 136 buildTvInputListLocked(mCurrentUserId); 137 } 138 } 139 mTvInputHardwareManager.onBootPhase(phase); 140 } 141 142 private void registerBroadcastReceivers() { 143 PackageMonitor monitor = new PackageMonitor() { 144 @Override 145 public void onSomePackagesChanged() { 146 synchronized (mLock) { 147 buildTvInputListLocked(mCurrentUserId); 148 } 149 } 150 151 @Override 152 public void onPackageRemoved(String packageName, int uid) { 153 synchronized (mLock) { 154 UserState userState = getUserStateLocked(mCurrentUserId); 155 if (!userState.packageSet.contains(packageName)) { 156 // Not a TV input package. 157 return; 158 } 159 } 160 161 ArrayList<ContentProviderOperation> operations = 162 new ArrayList<ContentProviderOperation>(); 163 164 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 165 String[] selectionArgs = { packageName }; 166 167 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 168 .withSelection(selection, selectionArgs).build()); 169 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 170 .withSelection(selection, selectionArgs).build()); 171 operations.add(ContentProviderOperation 172 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 173 .withSelection(selection, selectionArgs).build()); 174 175 ContentProviderResult[] results = null; 176 try { 177 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 178 } catch (RemoteException | OperationApplicationException e) { 179 Slog.e(TAG, "error in applyBatch" + e); 180 } 181 182 if (DEBUG) { 183 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 184 + ")"); 185 Slog.d(TAG, "results=" + results); 186 } 187 } 188 }; 189 monitor.register(mContext, null, UserHandle.ALL, true); 190 191 IntentFilter intentFilter = new IntentFilter(); 192 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 193 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 194 mContext.registerReceiverAsUser(new BroadcastReceiver() { 195 @Override 196 public void onReceive(Context context, Intent intent) { 197 String action = intent.getAction(); 198 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 199 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 200 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 201 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 202 } 203 } 204 }, UserHandle.ALL, intentFilter, null, null); 205 } 206 207 private static boolean hasHardwarePermission(PackageManager pm, ComponentName name) { 208 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 209 name.getPackageName()) == PackageManager.PERMISSION_GRANTED; 210 } 211 212 private void buildTvInputListLocked(int userId) { 213 UserState userState = getUserStateLocked(userId); 214 215 Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 216 userState.packageSet.clear(); 217 218 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 219 PackageManager pm = mContext.getPackageManager(); 220 List<ResolveInfo> services = pm.queryIntentServices( 221 new Intent(TvInputService.SERVICE_INTERFACE), 222 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 223 List<TvInputInfo> infoList = new ArrayList<TvInputInfo>(); 224 for (ResolveInfo ri : services) { 225 ServiceInfo si = ri.serviceInfo; 226 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 227 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 228 + android.Manifest.permission.BIND_TV_INPUT); 229 continue; 230 } 231 try { 232 infoList.clear(); 233 ComponentName service = new ComponentName(si.packageName, si.name); 234 if (hasHardwarePermission(pm, service)) { 235 ServiceState serviceState = userState.serviceStateMap.get(service); 236 if (serviceState == null) { 237 // We see this hardware TV input service for the first time; we need to 238 // prepare the ServiceState object so that we can connect to the service and 239 // let it add TvInputInfo objects to mInputList if there's any. 240 serviceState = new ServiceState(service, userId); 241 userState.serviceStateMap.put(service, serviceState); 242 } else { 243 infoList.addAll(serviceState.mInputList); 244 } 245 } else { 246 infoList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 247 } 248 249 for (TvInputInfo info : infoList) { 250 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 251 TvInputState state = userState.inputMap.get(info.getId()); 252 if (state == null) { 253 state = new TvInputState(); 254 } 255 state.mInfo = info; 256 inputMap.put(info.getId(), state); 257 } 258 259 // Reconnect the service if existing input is updated. 260 updateServiceConnectionLocked(service, userId); 261 262 userState.packageSet.add(si.packageName); 263 } catch (IOException | XmlPullParserException e) { 264 Slog.e(TAG, "Can't load TV input " + si.name, e); 265 } 266 } 267 268 for (String inputId : inputMap.keySet()) { 269 if (!userState.inputMap.containsKey(inputId)) { 270 notifyInputAddedLocked(userState, inputId); 271 } 272 } 273 274 for (String inputId : userState.inputMap.keySet()) { 275 if (!inputMap.containsKey(inputId)) { 276 notifyInputRemovedLocked(userState, inputId); 277 } 278 } 279 280 userState.inputMap.clear(); 281 userState.inputMap = inputMap; 282 } 283 284 private void switchUser(int userId) { 285 synchronized (mLock) { 286 if (mCurrentUserId == userId) { 287 return; 288 } 289 // final int oldUserId = mCurrentUserId; 290 // TODO: Release services and sessions in the old user state, if needed. 291 mCurrentUserId = userId; 292 293 UserState userState = mUserStates.get(userId); 294 if (userState == null) { 295 userState = new UserState(); 296 } 297 mUserStates.put(userId, userState); 298 buildTvInputListLocked(userId); 299 } 300 } 301 302 private void removeUser(int userId) { 303 synchronized (mLock) { 304 UserState userState = mUserStates.get(userId); 305 if (userState == null) { 306 return; 307 } 308 // Release created sessions. 309 for (SessionState state : userState.sessionStateMap.values()) { 310 if (state.mSession != null) { 311 try { 312 state.mSession.release(); 313 } catch (RemoteException e) { 314 Slog.e(TAG, "error in release", e); 315 } 316 } 317 } 318 userState.sessionStateMap.clear(); 319 320 // Unregister all callbacks and unbind all services. 321 for (ServiceState serviceState : userState.serviceStateMap.values()) { 322 if (serviceState.mCallback != null) { 323 try { 324 serviceState.mService.unregisterCallback(serviceState.mCallback); 325 } catch (RemoteException e) { 326 Slog.e(TAG, "error in unregisterCallback", e); 327 } 328 } 329 serviceState.mClientTokens.clear(); 330 mContext.unbindService(serviceState.mConnection); 331 } 332 userState.serviceStateMap.clear(); 333 334 userState.clientStateMap.clear(); 335 336 mUserStates.remove(userId); 337 } 338 } 339 340 private UserState getUserStateLocked(int userId) { 341 UserState userState = mUserStates.get(userId); 342 if (userState == null) { 343 throw new IllegalStateException("User state not found for user ID " + userId); 344 } 345 return userState; 346 } 347 348 private ServiceState getServiceStateLocked(ComponentName name, int userId) { 349 UserState userState = getUserStateLocked(userId); 350 ServiceState serviceState = userState.serviceStateMap.get(name); 351 if (serviceState == null) { 352 throw new IllegalStateException("Service state not found for " + name + " (userId=" 353 + userId + ")"); 354 } 355 return serviceState; 356 } 357 358 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 359 UserState userState = getUserStateLocked(userId); 360 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 361 if (sessionState == null) { 362 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 363 } 364 // Only the application that requested this session or the system can access it. 365 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 366 throw new SecurityException("Illegal access to the session with token " + sessionToken 367 + " from uid " + callingUid); 368 } 369 return sessionState; 370 } 371 372 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 373 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 374 ITvInputSession session = sessionState.mSession; 375 if (session == null) { 376 throw new IllegalStateException("Session not yet created for token " + sessionToken); 377 } 378 return session; 379 } 380 381 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 382 String methodName) { 383 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 384 false, methodName, null); 385 } 386 387 private static boolean shouldMaintainConnection(ServiceState serviceState) { 388 return !serviceState.mClientTokens.isEmpty() 389 || !serviceState.mSessionTokens.isEmpty() 390 || serviceState.mIsHardware; 391 // TODO: Find a way to maintain connection only when necessary. 392 } 393 394 private void updateServiceConnectionLocked(ComponentName service, int userId) { 395 UserState userState = getUserStateLocked(userId); 396 ServiceState serviceState = userState.serviceStateMap.get(service); 397 if (serviceState == null) { 398 return; 399 } 400 if (serviceState.mReconnecting) { 401 if (!serviceState.mSessionTokens.isEmpty()) { 402 // wait until all the sessions are removed. 403 return; 404 } 405 serviceState.mReconnecting = false; 406 } 407 boolean maintainConnection = shouldMaintainConnection(serviceState); 408 if (serviceState.mService == null && maintainConnection && userId == mCurrentUserId) { 409 // This means that the service is not yet connected but its state indicates that we 410 // have pending requests. Then, connect the service. 411 if (serviceState.mBound) { 412 // We have already bound to the service so we don't try to bind again until after we 413 // unbind later on. 414 return; 415 } 416 if (DEBUG) { 417 Slog.d(TAG, "bindServiceAsUser(service=" + service + ", userId=" + userId + ")"); 418 } 419 420 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(service); 421 // Binding service may fail if the service is updating. 422 // In that case, the connection will be revived in buildTvInputListLocked called by 423 // onSomePackagesChanged. 424 serviceState.mBound = mContext.bindServiceAsUser( 425 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 426 } else if (serviceState.mService != null && !maintainConnection) { 427 // This means that the service is already connected but its state indicates that we have 428 // nothing to do with it. Then, disconnect the service. 429 if (DEBUG) { 430 Slog.d(TAG, "unbindService(service=" + service + ")"); 431 } 432 mContext.unbindService(serviceState.mConnection); 433 userState.serviceStateMap.remove(service); 434 } 435 } 436 437 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 438 UserState userState = getUserStateLocked(userId); 439 ClientState clientState = new ClientState(clientToken, userId); 440 try { 441 clientToken.linkToDeath(clientState, 0); 442 } catch (RemoteException e) { 443 Slog.e(TAG, "Client is already died."); 444 } 445 userState.clientStateMap.put(clientToken, clientState); 446 return clientState; 447 } 448 449 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 450 final int userId) { 451 final UserState userState = getUserStateLocked(userId); 452 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 453 if (DEBUG) { 454 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInfo.getId() + ")"); 455 } 456 457 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 458 459 // Set up a callback to send the session token. 460 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 461 @Override 462 public void onSessionCreated(ITvInputSession session) { 463 if (DEBUG) { 464 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInfo.getId() + ")"); 465 } 466 synchronized (mLock) { 467 sessionState.mSession = session; 468 if (session == null) { 469 removeSessionStateLocked(sessionToken, userId); 470 sendSessionTokenToClientLocked(sessionState.mClient, 471 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 472 } else { 473 try { 474 session.asBinder().linkToDeath(sessionState, 0); 475 } catch (RemoteException e) { 476 Slog.e(TAG, "Session is already died."); 477 } 478 479 IBinder clientToken = sessionState.mClient.asBinder(); 480 ClientState clientState = userState.clientStateMap.get(clientToken); 481 if (clientState == null) { 482 clientState = createClientStateLocked(clientToken, userId); 483 } 484 clientState.mSessionTokens.add(sessionState.mSessionToken); 485 486 sendSessionTokenToClientLocked(sessionState.mClient, 487 sessionState.mInfo.getId(), sessionToken, channels[0], 488 sessionState.mSeq); 489 } 490 channels[0].dispose(); 491 } 492 } 493 494 @Override 495 public void onChannelRetuned(Uri channelUri) { 496 synchronized (mLock) { 497 if (DEBUG) { 498 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 499 } 500 if (sessionState.mSession == null || sessionState.mClient == null) { 501 return; 502 } 503 try { 504 // TODO: Consider adding this channel change in the watch log. When we do 505 // that, how we can protect the watch log from malicious tv inputs should 506 // be addressed. e.g. add a field which represents where the channel change 507 // originated from. 508 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 509 } catch (RemoteException e) { 510 Slog.e(TAG, "error in onChannelRetuned"); 511 } 512 } 513 } 514 515 @Override 516 public void onTrackInfoChanged(List<TvTrackInfo> tracks) { 517 synchronized (mLock) { 518 if (DEBUG) { 519 Slog.d(TAG, "onTrackInfoChanged(" + tracks + ")"); 520 } 521 if (sessionState.mSession == null || sessionState.mClient == null) { 522 return; 523 } 524 try { 525 sessionState.mClient.onTrackInfoChanged(tracks, 526 sessionState.mSeq); 527 } catch (RemoteException e) { 528 Slog.e(TAG, "error in onTrackInfoChanged"); 529 } 530 } 531 } 532 533 @Override 534 public void onVideoAvailable() { 535 synchronized (mLock) { 536 if (DEBUG) { 537 Slog.d(TAG, "onVideoAvailable()"); 538 } 539 if (sessionState.mSession == null || sessionState.mClient == null) { 540 return; 541 } 542 try { 543 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 544 } catch (RemoteException e) { 545 Slog.e(TAG, "error in onVideoAvailable"); 546 } 547 } 548 } 549 550 @Override 551 public void onVideoUnavailable(int reason) { 552 synchronized (mLock) { 553 if (DEBUG) { 554 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 555 } 556 if (sessionState.mSession == null || sessionState.mClient == null) { 557 return; 558 } 559 try { 560 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 561 } catch (RemoteException e) { 562 Slog.e(TAG, "error in onVideoUnavailable"); 563 } 564 } 565 } 566 567 @Override 568 public void onContentBlocked(String rating) { 569 synchronized (mLock) { 570 if (DEBUG) { 571 Slog.d(TAG, "onContentBlocked()"); 572 } 573 if (sessionState.mSession == null || sessionState.mClient == null) { 574 return; 575 } 576 try { 577 sessionState.mClient.onContentBlocked(rating, sessionState.mSeq); 578 } catch (RemoteException e) { 579 Slog.e(TAG, "error in onContentBlocked"); 580 } 581 } 582 } 583 584 @Override 585 public void onSessionEvent(String eventType, Bundle eventArgs) { 586 synchronized (mLock) { 587 if (DEBUG) { 588 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 589 } 590 if (sessionState.mSession == null || sessionState.mClient == null) { 591 return; 592 } 593 try { 594 sessionState.mClient.onSessionEvent(eventType, eventArgs, 595 sessionState.mSeq); 596 } catch (RemoteException e) { 597 Slog.e(TAG, "error in onSessionEvent"); 598 } 599 } 600 } 601 }; 602 603 // Create a session. When failed, send a null token immediately. 604 try { 605 service.createSession(channels[1], callback, sessionState.mInfo.getId()); 606 } catch (RemoteException e) { 607 Slog.e(TAG, "error in createSession", e); 608 removeSessionStateLocked(sessionToken, userId); 609 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInfo.getId(), null, 610 null, sessionState.mSeq); 611 } 612 channels[1].dispose(); 613 } 614 615 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 616 IBinder sessionToken, InputChannel channel, int seq) { 617 try { 618 client.onSessionCreated(inputId, sessionToken, channel, seq); 619 } catch (RemoteException exception) { 620 Slog.e(TAG, "error in onSessionCreated", exception); 621 } 622 } 623 624 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 625 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 626 if (sessionState.mSession != null) { 627 try { 628 sessionState.mSession.release(); 629 } catch (RemoteException e) { 630 Slog.w(TAG, "session is already disapeared", e); 631 } 632 sessionState.mSession = null; 633 } 634 removeSessionStateLocked(sessionToken, userId); 635 } 636 637 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 638 // Remove the session state from the global session state map of the current user. 639 UserState userState = getUserStateLocked(userId); 640 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 641 642 // Close the open log entry, if any. 643 if (sessionState.mLogUri != null) { 644 SomeArgs args = SomeArgs.obtain(); 645 args.arg1 = sessionState.mLogUri; 646 args.arg2 = System.currentTimeMillis(); 647 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 648 } 649 650 // Also remove the session token from the session token list of the current client and 651 // service. 652 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 653 if (clientState != null) { 654 clientState.mSessionTokens.remove(sessionToken); 655 if (clientState.isEmpty()) { 656 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 657 } 658 } 659 660 TvInputInfo info = sessionState.mInfo; 661 if (info != null) { 662 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 663 if (serviceState != null) { 664 serviceState.mSessionTokens.remove(sessionToken); 665 } 666 } 667 updateServiceConnectionLocked(sessionState.mInfo.getComponent(), userId); 668 } 669 670 private void unregisterClientInternalLocked(IBinder clientToken, String inputId, 671 int userId) { 672 UserState userState = getUserStateLocked(userId); 673 ClientState clientState = userState.clientStateMap.get(clientToken); 674 if (clientState != null) { 675 clientState.mInputIds.remove(inputId); 676 if (clientState.isEmpty()) { 677 userState.clientStateMap.remove(clientToken); 678 } 679 } 680 681 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 682 if (info == null) { 683 return; 684 } 685 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 686 if (serviceState == null) { 687 return; 688 } 689 690 // Remove this client from the client list and unregister the callback. 691 serviceState.mClientTokens.remove(clientToken); 692 if (!serviceState.mClientTokens.isEmpty()) { 693 // We have other clients who want to keep the callback. Do this later. 694 return; 695 } 696 if (serviceState.mService == null || serviceState.mCallback == null) { 697 return; 698 } 699 try { 700 serviceState.mService.unregisterCallback(serviceState.mCallback); 701 } catch (RemoteException e) { 702 Slog.e(TAG, "error in unregisterCallback", e); 703 } finally { 704 serviceState.mCallback = null; 705 updateServiceConnectionLocked(info.getComponent(), userId); 706 } 707 } 708 709 private void notifyInputAddedLocked(UserState userState, String inputId) { 710 if (DEBUG) { 711 Slog.d(TAG, "notifyInputAdded: inputId = " + inputId); 712 } 713 for (ITvInputManagerCallback callback : userState.callbackSet) { 714 try { 715 callback.onInputAdded(inputId); 716 } catch (RemoteException e) { 717 Slog.e(TAG, "Failed to report added input to callback."); 718 } 719 } 720 } 721 722 private void notifyInputRemovedLocked(UserState userState, String inputId) { 723 if (DEBUG) { 724 Slog.d(TAG, "notifyInputRemovedLocked: inputId = " + inputId); 725 } 726 for (ITvInputManagerCallback callback : userState.callbackSet) { 727 try { 728 callback.onInputRemoved(inputId); 729 } catch (RemoteException e) { 730 Slog.e(TAG, "Failed to report removed input to callback."); 731 } 732 } 733 } 734 735 private void notifyInputStateChangedLocked(UserState userState, String inputId, 736 int state, ITvInputManagerCallback targetCallback) { 737 if (DEBUG) { 738 Slog.d(TAG, "notifyInputStateChangedLocked: inputId = " + inputId 739 + "; state = " + state); 740 } 741 if (targetCallback == null) { 742 for (ITvInputManagerCallback callback : userState.callbackSet) { 743 try { 744 callback.onInputStateChanged(inputId, state); 745 } catch (RemoteException e) { 746 Slog.e(TAG, "Failed to report state change to callback."); 747 } 748 } 749 } else { 750 try { 751 targetCallback.onInputStateChanged(inputId, state); 752 } catch (RemoteException e) { 753 Slog.e(TAG, "Failed to report state change to callback."); 754 } 755 } 756 } 757 758 private void setStateLocked(String inputId, int state, int userId) { 759 UserState userState = getUserStateLocked(userId); 760 TvInputState inputState = userState.inputMap.get(inputId); 761 ServiceState serviceState = userState.serviceStateMap.get(inputId); 762 int oldState = inputState.mState; 763 inputState.mState = state; 764 if (serviceState != null && serviceState.mService == null 765 && shouldMaintainConnection(serviceState)) { 766 // We don't notify state change while reconnecting. It should remain disconnected. 767 return; 768 } 769 if (oldState != state) { 770 notifyInputStateChangedLocked(userState, inputId, state, null); 771 } 772 } 773 774 private final class BinderService extends ITvInputManager.Stub { 775 @Override 776 public List<TvInputInfo> getTvInputList(int userId) { 777 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 778 Binder.getCallingUid(), userId, "getTvInputList"); 779 final long identity = Binder.clearCallingIdentity(); 780 try { 781 synchronized (mLock) { 782 UserState userState = getUserStateLocked(resolvedUserId); 783 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 784 for (TvInputState state : userState.inputMap.values()) { 785 inputList.add(state.mInfo); 786 } 787 return inputList; 788 } 789 } finally { 790 Binder.restoreCallingIdentity(identity); 791 } 792 } 793 794 @Override 795 public TvInputInfo getTvInputInfo(String inputId, int userId) { 796 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 797 Binder.getCallingUid(), userId, "getTvInputInfo"); 798 final long identity = Binder.clearCallingIdentity(); 799 try { 800 synchronized (mLock) { 801 UserState userState = getUserStateLocked(resolvedUserId); 802 TvInputState state = userState.inputMap.get(inputId); 803 return state == null ? null : state.mInfo; 804 } 805 } finally { 806 Binder.restoreCallingIdentity(identity); 807 } 808 } 809 810 @Override 811 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 812 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 813 Binder.getCallingUid(), userId, "registerCallback"); 814 final long identity = Binder.clearCallingIdentity(); 815 try { 816 synchronized (mLock) { 817 UserState userState = getUserStateLocked(resolvedUserId); 818 userState.callbackSet.add(callback); 819 for (TvInputState state : userState.inputMap.values()) { 820 notifyInputStateChangedLocked(userState, state.mInfo.getId(), 821 state.mState, callback); 822 } 823 } 824 } finally { 825 Binder.restoreCallingIdentity(identity); 826 } 827 } 828 829 @Override 830 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 831 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 832 Binder.getCallingUid(), userId, "unregisterCallback"); 833 final long identity = Binder.clearCallingIdentity(); 834 try { 835 synchronized (mLock) { 836 UserState userState = getUserStateLocked(resolvedUserId); 837 userState.callbackSet.remove(callback); 838 } 839 } finally { 840 Binder.restoreCallingIdentity(identity); 841 } 842 } 843 844 @Override 845 public void createSession(final ITvInputClient client, final String inputId, 846 int seq, int userId) { 847 final int callingUid = Binder.getCallingUid(); 848 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 849 userId, "createSession"); 850 final long identity = Binder.clearCallingIdentity(); 851 try { 852 synchronized (mLock) { 853 UserState userState = getUserStateLocked(resolvedUserId); 854 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 855 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 856 if (serviceState == null) { 857 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 858 userState.serviceStateMap.put(info.getComponent(), serviceState); 859 } 860 // Send a null token immediately while reconnecting. 861 if (serviceState.mReconnecting == true) { 862 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 863 return; 864 } 865 866 // Create a new session token and a session state. 867 IBinder sessionToken = new Binder(); 868 SessionState sessionState = new SessionState(sessionToken, info, client, 869 seq, callingUid, resolvedUserId); 870 871 // Add them to the global session state map of the current user. 872 userState.sessionStateMap.put(sessionToken, sessionState); 873 874 // Also, add them to the session state map of the current service. 875 serviceState.mSessionTokens.add(sessionToken); 876 877 if (serviceState.mService != null) { 878 createSessionInternalLocked(serviceState.mService, sessionToken, 879 resolvedUserId); 880 } else { 881 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 882 } 883 } 884 } finally { 885 Binder.restoreCallingIdentity(identity); 886 } 887 } 888 889 @Override 890 public void releaseSession(IBinder sessionToken, int userId) { 891 final int callingUid = Binder.getCallingUid(); 892 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 893 userId, "releaseSession"); 894 final long identity = Binder.clearCallingIdentity(); 895 try { 896 synchronized (mLock) { 897 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 898 } 899 } finally { 900 Binder.restoreCallingIdentity(identity); 901 } 902 } 903 904 @Override 905 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 906 final int callingUid = Binder.getCallingUid(); 907 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 908 userId, "setSurface"); 909 final long identity = Binder.clearCallingIdentity(); 910 try { 911 synchronized (mLock) { 912 try { 913 getSessionLocked(sessionToken, callingUid, resolvedUserId).setSurface( 914 surface); 915 } catch (RemoteException e) { 916 Slog.e(TAG, "error in setSurface", e); 917 } 918 } 919 } finally { 920 if (surface != null) { 921 // surface is not used in TvInputManagerService. 922 surface.release(); 923 } 924 Binder.restoreCallingIdentity(identity); 925 } 926 } 927 928 @Override 929 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 930 int height, int userId) { 931 final int callingUid = Binder.getCallingUid(); 932 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 933 userId, "dispatchSurfaceChanged"); 934 final long identity = Binder.clearCallingIdentity(); 935 try { 936 synchronized (mLock) { 937 try { 938 getSessionLocked(sessionToken, callingUid, resolvedUserId) 939 .dispatchSurfaceChanged(format, width, height); 940 } catch (RemoteException e) { 941 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 942 } 943 } 944 } finally { 945 Binder.restoreCallingIdentity(identity); 946 } 947 } 948 949 @Override 950 public void setVolume(IBinder sessionToken, float volume, int userId) { 951 final int callingUid = Binder.getCallingUid(); 952 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 953 userId, "setVolume"); 954 final long identity = Binder.clearCallingIdentity(); 955 try { 956 synchronized (mLock) { 957 try { 958 getSessionLocked(sessionToken, callingUid, resolvedUserId).setVolume( 959 volume); 960 } catch (RemoteException e) { 961 Slog.e(TAG, "error in setVolume", e); 962 } 963 } 964 } finally { 965 Binder.restoreCallingIdentity(identity); 966 } 967 } 968 969 @Override 970 public void tune(IBinder sessionToken, final Uri channelUri, int userId) { 971 final int callingUid = Binder.getCallingUid(); 972 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 973 userId, "tune"); 974 final long identity = Binder.clearCallingIdentity(); 975 try { 976 synchronized (mLock) { 977 try { 978 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune(channelUri); 979 980 long currentTime = System.currentTimeMillis(); 981 long channelId = ContentUris.parseId(channelUri); 982 983 // Close the open log entry first, if any. 984 UserState userState = getUserStateLocked(resolvedUserId); 985 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 986 if (sessionState.mLogUri != null) { 987 SomeArgs args = SomeArgs.obtain(); 988 args.arg1 = sessionState.mLogUri; 989 args.arg2 = currentTime; 990 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 991 .sendToTarget(); 992 } 993 994 // Create a log entry and fill it later. 995 String packageName = sessionState.mInfo.getServiceInfo().packageName; 996 ContentValues values = new ContentValues(); 997 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 998 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 999 currentTime); 1000 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 1001 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1002 1003 sessionState.mLogUri = mContentResolver.insert( 1004 TvContract.WatchedPrograms.CONTENT_URI, values); 1005 SomeArgs args = SomeArgs.obtain(); 1006 args.arg1 = sessionState.mLogUri; 1007 args.arg2 = ContentUris.parseId(channelUri); 1008 args.arg3 = currentTime; 1009 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 1010 } catch (RemoteException e) { 1011 Slog.e(TAG, "error in tune", e); 1012 return; 1013 } 1014 } 1015 } finally { 1016 Binder.restoreCallingIdentity(identity); 1017 } 1018 } 1019 1020 @Override 1021 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1022 final int callingUid = Binder.getCallingUid(); 1023 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1024 userId, "setCaptionEnabled"); 1025 final long identity = Binder.clearCallingIdentity(); 1026 try { 1027 synchronized (mLock) { 1028 try { 1029 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1030 .setCaptionEnabled(enabled); 1031 } catch (RemoteException e) { 1032 Slog.e(TAG, "error in setCaptionEnabled", e); 1033 } 1034 } 1035 } finally { 1036 Binder.restoreCallingIdentity(identity); 1037 } 1038 } 1039 1040 @Override 1041 public void selectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 1042 final int callingUid = Binder.getCallingUid(); 1043 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1044 userId, "selectTrack"); 1045 final long identity = Binder.clearCallingIdentity(); 1046 try { 1047 synchronized (mLock) { 1048 try { 1049 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1050 track); 1051 } catch (RemoteException e) { 1052 Slog.e(TAG, "error in selectTrack", e); 1053 } 1054 } 1055 } finally { 1056 Binder.restoreCallingIdentity(identity); 1057 } 1058 } 1059 1060 @Override 1061 public void unselectTrack(IBinder sessionToken, TvTrackInfo track, int userId) { 1062 final int callingUid = Binder.getCallingUid(); 1063 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1064 userId, "unselectTrack"); 1065 final long identity = Binder.clearCallingIdentity(); 1066 try { 1067 synchronized (mLock) { 1068 try { 1069 getSessionLocked(sessionToken, callingUid, resolvedUserId).unselectTrack( 1070 track); 1071 } catch (RemoteException e) { 1072 Slog.e(TAG, "error in unselectTrack", e); 1073 } 1074 } 1075 } finally { 1076 Binder.restoreCallingIdentity(identity); 1077 } 1078 } 1079 1080 @Override 1081 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1082 int userId) { 1083 final int callingUid = Binder.getCallingUid(); 1084 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1085 userId, "createOverlayView"); 1086 final long identity = Binder.clearCallingIdentity(); 1087 try { 1088 synchronized (mLock) { 1089 try { 1090 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1091 .createOverlayView(windowToken, frame); 1092 } catch (RemoteException e) { 1093 Slog.e(TAG, "error in createOverlayView", e); 1094 } 1095 } 1096 } finally { 1097 Binder.restoreCallingIdentity(identity); 1098 } 1099 } 1100 1101 @Override 1102 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1103 final int callingUid = Binder.getCallingUid(); 1104 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1105 userId, "relayoutOverlayView"); 1106 final long identity = Binder.clearCallingIdentity(); 1107 try { 1108 synchronized (mLock) { 1109 try { 1110 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1111 .relayoutOverlayView(frame); 1112 } catch (RemoteException e) { 1113 Slog.e(TAG, "error in relayoutOverlayView", e); 1114 } 1115 } 1116 } finally { 1117 Binder.restoreCallingIdentity(identity); 1118 } 1119 } 1120 1121 @Override 1122 public void removeOverlayView(IBinder sessionToken, int userId) { 1123 final int callingUid = Binder.getCallingUid(); 1124 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1125 userId, "removeOverlayView"); 1126 final long identity = Binder.clearCallingIdentity(); 1127 try { 1128 synchronized (mLock) { 1129 try { 1130 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1131 .removeOverlayView(); 1132 } catch (RemoteException e) { 1133 Slog.e(TAG, "error in removeOverlayView", e); 1134 } 1135 } 1136 } finally { 1137 Binder.restoreCallingIdentity(identity); 1138 } 1139 } 1140 1141 @Override 1142 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1143 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1144 != PackageManager.PERMISSION_GRANTED) { 1145 return null; 1146 } 1147 1148 final long identity = Binder.clearCallingIdentity(); 1149 try { 1150 return mTvInputHardwareManager.getHardwareList(); 1151 } finally { 1152 Binder.restoreCallingIdentity(identity); 1153 } 1154 } 1155 1156 @Override 1157 public void registerTvInputInfo(TvInputInfo info, int deviceId) { 1158 // TODO: Revisit to sort out deviceId ownership. 1159 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1160 != PackageManager.PERMISSION_GRANTED) { 1161 return; 1162 } 1163 1164 final long identity = Binder.clearCallingIdentity(); 1165 try { 1166 mTvInputHardwareManager.registerTvInputInfo(info, deviceId); 1167 } finally { 1168 Binder.restoreCallingIdentity(identity); 1169 } 1170 } 1171 1172 @Override 1173 public ITvInputHardware acquireTvInputHardware(int deviceId, 1174 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1175 throws RemoteException { 1176 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1177 != PackageManager.PERMISSION_GRANTED) { 1178 return null; 1179 } 1180 1181 final long identity = Binder.clearCallingIdentity(); 1182 final int callingUid = Binder.getCallingUid(); 1183 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1184 userId, "acquireTvInputHardware"); 1185 try { 1186 return mTvInputHardwareManager.acquireHardware( 1187 deviceId, callback, info, callingUid, resolvedUserId); 1188 } finally { 1189 Binder.restoreCallingIdentity(identity); 1190 } 1191 } 1192 1193 @Override 1194 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1195 throws RemoteException { 1196 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1197 != PackageManager.PERMISSION_GRANTED) { 1198 return; 1199 } 1200 1201 final long identity = Binder.clearCallingIdentity(); 1202 final int callingUid = Binder.getCallingUid(); 1203 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1204 userId, "releaseTvInputHardware"); 1205 try { 1206 mTvInputHardwareManager.releaseHardware( 1207 deviceId, hardware, callingUid, resolvedUserId); 1208 } finally { 1209 Binder.restoreCallingIdentity(identity); 1210 } 1211 } 1212 1213 @Override 1214 @SuppressWarnings("resource") 1215 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1216 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1217 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1218 != PackageManager.PERMISSION_GRANTED) { 1219 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1220 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1221 return; 1222 } 1223 1224 synchronized (mLock) { 1225 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1226 pw.increaseIndent(); 1227 for (int i = 0; i < mUserStates.size(); i++) { 1228 int userId = mUserStates.keyAt(i); 1229 pw.println(Integer.valueOf(userId)); 1230 } 1231 pw.decreaseIndent(); 1232 1233 for (int i = 0; i < mUserStates.size(); i++) { 1234 int userId = mUserStates.keyAt(i); 1235 UserState userState = getUserStateLocked(userId); 1236 pw.println("UserState (" + userId + "):"); 1237 pw.increaseIndent(); 1238 1239 pw.println("inputMap: inputId -> TvInputState"); 1240 pw.increaseIndent(); 1241 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 1242 pw.println(entry.getKey() + ": " + entry.getValue()); 1243 } 1244 pw.decreaseIndent(); 1245 1246 pw.println("packageSet:"); 1247 pw.increaseIndent(); 1248 for (String packageName : userState.packageSet) { 1249 pw.println(packageName); 1250 } 1251 pw.decreaseIndent(); 1252 1253 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1254 pw.increaseIndent(); 1255 for (Map.Entry<IBinder, ClientState> entry : 1256 userState.clientStateMap.entrySet()) { 1257 ClientState client = entry.getValue(); 1258 pw.println(entry.getKey() + ": " + client); 1259 1260 pw.increaseIndent(); 1261 1262 pw.println("mInputIds:"); 1263 pw.increaseIndent(); 1264 for (String inputId : client.mInputIds) { 1265 pw.println(inputId); 1266 } 1267 pw.decreaseIndent(); 1268 1269 pw.println("mSessionTokens:"); 1270 pw.increaseIndent(); 1271 for (IBinder token : client.mSessionTokens) { 1272 pw.println("" + token); 1273 } 1274 pw.decreaseIndent(); 1275 1276 pw.println("mClientTokens: " + client.mClientToken); 1277 pw.println("mUserId: " + client.mUserId); 1278 1279 pw.decreaseIndent(); 1280 } 1281 pw.decreaseIndent(); 1282 1283 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1284 pw.increaseIndent(); 1285 for (Map.Entry<ComponentName, ServiceState> entry : 1286 userState.serviceStateMap.entrySet()) { 1287 ServiceState service = entry.getValue(); 1288 pw.println(entry.getKey() + ": " + service); 1289 1290 pw.increaseIndent(); 1291 1292 pw.println("mClientTokens:"); 1293 pw.increaseIndent(); 1294 for (IBinder token : service.mClientTokens) { 1295 pw.println("" + token); 1296 } 1297 pw.decreaseIndent(); 1298 1299 pw.println("mSessionTokens:"); 1300 pw.increaseIndent(); 1301 for (IBinder token : service.mSessionTokens) { 1302 pw.println("" + token); 1303 } 1304 pw.decreaseIndent(); 1305 1306 pw.println("mService: " + service.mService); 1307 pw.println("mCallback: " + service.mCallback); 1308 pw.println("mBound: " + service.mBound); 1309 pw.println("mReconnecting: " + service.mReconnecting); 1310 1311 pw.decreaseIndent(); 1312 } 1313 pw.decreaseIndent(); 1314 1315 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1316 pw.increaseIndent(); 1317 for (Map.Entry<IBinder, SessionState> entry : 1318 userState.sessionStateMap.entrySet()) { 1319 SessionState session = entry.getValue(); 1320 pw.println(entry.getKey() + ": " + session); 1321 1322 pw.increaseIndent(); 1323 pw.println("mInfo: " + session.mInfo); 1324 pw.println("mClient: " + session.mClient); 1325 pw.println("mSeq: " + session.mSeq); 1326 pw.println("mCallingUid: " + session.mCallingUid); 1327 pw.println("mUserId: " + session.mUserId); 1328 pw.println("mSessionToken: " + session.mSessionToken); 1329 pw.println("mSession: " + session.mSession); 1330 pw.println("mLogUri: " + session.mLogUri); 1331 pw.decreaseIndent(); 1332 } 1333 pw.decreaseIndent(); 1334 1335 pw.println("callbackSet:"); 1336 pw.increaseIndent(); 1337 for (ITvInputManagerCallback callback : userState.callbackSet) { 1338 pw.println(callback.toString()); 1339 } 1340 pw.decreaseIndent(); 1341 1342 pw.decreaseIndent(); 1343 } 1344 } 1345 } 1346 } 1347 1348 private static final class TvInputState { 1349 // A TvInputInfo object which represents the TV input. 1350 private TvInputInfo mInfo; 1351 1352 // The state of TV input. Connected by default. 1353 private int mState = INPUT_STATE_CONNECTED; 1354 1355 @Override 1356 public String toString() { 1357 return "mInfo: " + mInfo + "; mState: " + mState; 1358 } 1359 } 1360 1361 private static final class UserState { 1362 // A mapping from the TV input id to its TvInputState. 1363 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1364 1365 // A set of all TV input packages. 1366 private final Set<String> packageSet = new HashSet<String>(); 1367 1368 // A mapping from the token of a client to its state. 1369 private final Map<IBinder, ClientState> clientStateMap = 1370 new HashMap<IBinder, ClientState>(); 1371 1372 // A mapping from the name of a TV input service to its state. 1373 private final Map<ComponentName, ServiceState> serviceStateMap = 1374 new HashMap<ComponentName, ServiceState>(); 1375 1376 // A mapping from the token of a TV input session to its state. 1377 private final Map<IBinder, SessionState> sessionStateMap = 1378 new HashMap<IBinder, SessionState>(); 1379 1380 // A set of callbacks. 1381 private final Set<ITvInputManagerCallback> callbackSet = 1382 new HashSet<ITvInputManagerCallback>(); 1383 } 1384 1385 private final class ClientState implements IBinder.DeathRecipient { 1386 private final List<String> mInputIds = new ArrayList<String>(); 1387 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1388 1389 private IBinder mClientToken; 1390 private final int mUserId; 1391 1392 ClientState(IBinder clientToken, int userId) { 1393 mClientToken = clientToken; 1394 mUserId = userId; 1395 } 1396 1397 public boolean isEmpty() { 1398 return mInputIds.isEmpty() && mSessionTokens.isEmpty(); 1399 } 1400 1401 @Override 1402 public void binderDied() { 1403 synchronized (mLock) { 1404 UserState userState = getUserStateLocked(mUserId); 1405 // DO NOT remove the client state of clientStateMap in this method. It will be 1406 // removed in releaseSessionLocked() or unregisterClientInternalLocked(). 1407 ClientState clientState = userState.clientStateMap.get(mClientToken); 1408 if (clientState != null) { 1409 while (clientState.mSessionTokens.size() > 0) { 1410 releaseSessionLocked( 1411 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1412 } 1413 while (clientState.mInputIds.size() > 0) { 1414 unregisterClientInternalLocked( 1415 mClientToken, clientState.mInputIds.get(0), mUserId); 1416 } 1417 } 1418 mClientToken = null; 1419 } 1420 } 1421 } 1422 1423 private final class ServiceState { 1424 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1425 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1426 private final ServiceConnection mConnection; 1427 private final ComponentName mName; 1428 private final boolean mIsHardware; 1429 private final List<TvInputInfo> mInputList = new ArrayList<TvInputInfo>(); 1430 1431 private ITvInputService mService; 1432 private ServiceCallback mCallback; 1433 private boolean mBound; 1434 private boolean mReconnecting; 1435 1436 private ServiceState(ComponentName name, int userId) { 1437 mName = name; 1438 mConnection = new InputServiceConnection(name, userId); 1439 mIsHardware = hasHardwarePermission(mContext.getPackageManager(), mName); 1440 } 1441 } 1442 1443 private final class SessionState implements IBinder.DeathRecipient { 1444 private final TvInputInfo mInfo; 1445 private final ITvInputClient mClient; 1446 private final int mSeq; 1447 private final int mCallingUid; 1448 private final int mUserId; 1449 private final IBinder mSessionToken; 1450 private ITvInputSession mSession; 1451 private Uri mLogUri; 1452 1453 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, int seq, 1454 int callingUid, int userId) { 1455 mSessionToken = sessionToken; 1456 mInfo = info; 1457 mClient = client; 1458 mSeq = seq; 1459 mCallingUid = callingUid; 1460 mUserId = userId; 1461 } 1462 1463 @Override 1464 public void binderDied() { 1465 synchronized (mLock) { 1466 mSession = null; 1467 if (mClient != null) { 1468 try { 1469 mClient.onSessionReleased(mSeq); 1470 } catch(RemoteException e) { 1471 Slog.e(TAG, "error in onSessionReleased", e); 1472 } 1473 } 1474 removeSessionStateLocked(mSessionToken, mUserId); 1475 } 1476 } 1477 } 1478 1479 private final class InputServiceConnection implements ServiceConnection { 1480 private final ComponentName mName; 1481 private final int mUserId; 1482 1483 private InputServiceConnection(ComponentName name, int userId) { 1484 mName = name; 1485 mUserId = userId; 1486 } 1487 1488 @Override 1489 public void onServiceConnected(ComponentName name, IBinder service) { 1490 if (DEBUG) { 1491 Slog.d(TAG, "onServiceConnected(name=" + name + ")"); 1492 } 1493 synchronized (mLock) { 1494 List<TvInputHardwareInfo> hardwareInfoList = 1495 mTvInputHardwareManager.getHardwareList(); 1496 UserState userState = getUserStateLocked(mUserId); 1497 ServiceState serviceState = userState.serviceStateMap.get(mName); 1498 serviceState.mService = ITvInputService.Stub.asInterface(service); 1499 1500 // Register a callback, if we need to. 1501 if (serviceState.mIsHardware && serviceState.mCallback == null) { 1502 serviceState.mCallback = new ServiceCallback(mName, mUserId); 1503 try { 1504 serviceState.mService.registerCallback(serviceState.mCallback); 1505 } catch (RemoteException e) { 1506 Slog.e(TAG, "error in registerCallback", e); 1507 } 1508 } 1509 1510 // And create sessions, if any. 1511 for (IBinder sessionToken : serviceState.mSessionTokens) { 1512 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1513 } 1514 1515 for (TvInputState inputState : userState.inputMap.values()) { 1516 if (inputState.mInfo.getComponent().equals(name) 1517 && inputState.mState != INPUT_STATE_DISCONNECTED) { 1518 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1519 inputState.mState, null); 1520 } 1521 } 1522 1523 if (serviceState.mIsHardware) { 1524 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 1525 try { 1526 serviceState.mService.notifyHardwareAdded(hardwareInfo); 1527 } catch (RemoteException e) { 1528 Slog.e(TAG, "error in notifyHardwareAdded", e); 1529 } 1530 } 1531 1532 // TODO: Grab CEC devices and notify them to the service. 1533 } 1534 } 1535 } 1536 1537 @Override 1538 public void onServiceDisconnected(ComponentName name) { 1539 if (DEBUG) { 1540 Slog.d(TAG, "onServiceDisconnected(name=" + name + ")"); 1541 } 1542 if (!mName.equals(name)) { 1543 throw new IllegalArgumentException("Mismatched ComponentName: " 1544 + mName + " (expected), " + name + " (actual)."); 1545 } 1546 synchronized (mLock) { 1547 UserState userState = getUserStateLocked(mUserId); 1548 ServiceState serviceState = userState.serviceStateMap.get(mName); 1549 if (serviceState != null) { 1550 serviceState.mReconnecting = true; 1551 serviceState.mBound = false; 1552 serviceState.mService = null; 1553 serviceState.mCallback = null; 1554 1555 // Send null tokens for not finishing create session events. 1556 for (IBinder sessionToken : serviceState.mSessionTokens) { 1557 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1558 if (sessionState.mSession == null) { 1559 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1560 sendSessionTokenToClientLocked(sessionState.mClient, 1561 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 1562 } 1563 } 1564 1565 for (TvInputState inputState : userState.inputMap.values()) { 1566 if (inputState.mInfo.getComponent().equals(name)) { 1567 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1568 INPUT_STATE_DISCONNECTED, null); 1569 } 1570 } 1571 updateServiceConnectionLocked(mName, mUserId); 1572 } 1573 } 1574 } 1575 } 1576 1577 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1578 private final ComponentName mName; 1579 private final int mUserId; 1580 1581 ServiceCallback(ComponentName name, int userId) { 1582 mName = name; 1583 mUserId = userId; 1584 } 1585 1586 @Override 1587 public void addTvInput(TvInputInfo inputInfo) { 1588 synchronized (mLock) { 1589 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1590 != PackageManager.PERMISSION_GRANTED) { 1591 Slog.w(TAG, "The caller does not have permission to add a TV input (" 1592 + inputInfo + ")."); 1593 return; 1594 } 1595 1596 ServiceState serviceState = getServiceStateLocked(mName, mUserId); 1597 serviceState.mInputList.add(inputInfo); 1598 buildTvInputListLocked(mUserId); 1599 } 1600 } 1601 1602 @Override 1603 public void removeTvInput(String inputId) { 1604 synchronized (mLock) { 1605 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1606 != PackageManager.PERMISSION_GRANTED) { 1607 Slog.w(TAG, "The caller does not have permission to remove a TV input (" 1608 + inputId + ")."); 1609 return; 1610 } 1611 1612 ServiceState serviceState = getServiceStateLocked(mName, mUserId); 1613 boolean removed = false; 1614 for (Iterator<TvInputInfo> it = serviceState.mInputList.iterator(); 1615 it.hasNext(); ) { 1616 if (it.next().getId().equals(inputId)) { 1617 it.remove(); 1618 removed = true; 1619 break; 1620 } 1621 } 1622 if (removed) { 1623 buildTvInputListLocked(mUserId); 1624 } else { 1625 Slog.e(TAG, "TvInputInfo with inputId=" + inputId + " not found."); 1626 } 1627 } 1628 } 1629 } 1630 1631 private final class LogHandler extends Handler { 1632 private static final int MSG_OPEN_ENTRY = 1; 1633 private static final int MSG_UPDATE_ENTRY = 2; 1634 private static final int MSG_CLOSE_ENTRY = 3; 1635 1636 public LogHandler(Looper looper) { 1637 super(looper); 1638 } 1639 1640 @Override 1641 public void handleMessage(Message msg) { 1642 switch (msg.what) { 1643 case MSG_OPEN_ENTRY: { 1644 SomeArgs args = (SomeArgs) msg.obj; 1645 Uri uri = (Uri) args.arg1; 1646 long channelId = (long) args.arg2; 1647 long time = (long) args.arg3; 1648 onOpenEntry(uri, channelId, time); 1649 args.recycle(); 1650 return; 1651 } 1652 case MSG_UPDATE_ENTRY: { 1653 SomeArgs args = (SomeArgs) msg.obj; 1654 Uri uri = (Uri) args.arg1; 1655 long channelId = (long) args.arg2; 1656 long time = (long) args.arg3; 1657 onUpdateEntry(uri, channelId, time); 1658 args.recycle(); 1659 return; 1660 } 1661 case MSG_CLOSE_ENTRY: { 1662 SomeArgs args = (SomeArgs) msg.obj; 1663 Uri uri = (Uri) args.arg1; 1664 long time = (long) args.arg2; 1665 onCloseEntry(uri, time); 1666 args.recycle(); 1667 return; 1668 } 1669 default: { 1670 Slog.w(TAG, "Unhandled message code: " + msg.what); 1671 return; 1672 } 1673 } 1674 } 1675 1676 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 1677 String[] projection = { 1678 TvContract.Programs.COLUMN_TITLE, 1679 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 1680 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 1681 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 1682 }; 1683 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 1684 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 1685 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 1686 String[] selectionArgs = { 1687 String.valueOf(channelId), 1688 String.valueOf(watchStarttime), 1689 String.valueOf(watchStarttime) 1690 }; 1691 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 1692 Cursor cursor = null; 1693 try { 1694 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 1695 selection, selectionArgs, sortOrder); 1696 if (cursor != null && cursor.moveToNext()) { 1697 ContentValues values = new ContentValues(); 1698 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 1699 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1700 cursor.getLong(1)); 1701 long endTime = cursor.getLong(2); 1702 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1703 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 1704 mContentResolver.update(uri, values, null, null); 1705 1706 // Schedule an update when the current program ends. 1707 SomeArgs args = SomeArgs.obtain(); 1708 args.arg1 = uri; 1709 args.arg2 = channelId; 1710 args.arg3 = endTime; 1711 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 1712 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 1713 } 1714 } finally { 1715 if (cursor != null) { 1716 cursor.close(); 1717 } 1718 } 1719 } 1720 1721 private void onUpdateEntry(Uri uri, long channelId, long time) { 1722 String[] projection = { 1723 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1724 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 1725 TvContract.WatchedPrograms.COLUMN_TITLE, 1726 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 1727 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 1728 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 1729 }; 1730 Cursor cursor = null; 1731 try { 1732 cursor = mContentResolver.query(uri, projection, null, null, null); 1733 if (cursor != null && cursor.moveToNext()) { 1734 long watchStartTime = cursor.getLong(0); 1735 long watchEndTime = cursor.getLong(1); 1736 String title = cursor.getString(2); 1737 long startTime = cursor.getLong(3); 1738 long endTime = cursor.getLong(4); 1739 String description = cursor.getString(5); 1740 1741 // Do nothing if the current log entry is already closed. 1742 if (watchEndTime > 0) { 1743 return; 1744 } 1745 1746 // The current program has just ended. Create a (complete) log entry off the 1747 // current entry. 1748 ContentValues values = new ContentValues(); 1749 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1750 watchStartTime); 1751 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 1752 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1753 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 1754 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 1755 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 1756 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 1757 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 1758 } 1759 } finally { 1760 if (cursor != null) { 1761 cursor.close(); 1762 } 1763 } 1764 // Re-open the current log entry with the next program information. 1765 onOpenEntry(uri, channelId, time); 1766 } 1767 1768 private void onCloseEntry(Uri uri, long watchEndTime) { 1769 ContentValues values = new ContentValues(); 1770 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 1771 mContentResolver.update(uri, values, null, null); 1772 } 1773 } 1774 1775 final class HardwareListener implements TvInputHardwareManager.Listener { 1776 @Override 1777 public void onStateChanged(String inputId, int state) { 1778 synchronized (mLock) { 1779 setStateLocked(inputId, state, mCurrentUserId); 1780 } 1781 } 1782 1783 @Override 1784 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 1785 synchronized (mLock) { 1786 UserState userState = getUserStateLocked(mCurrentUserId); 1787 // Broadcast the event to all hardware inputs. 1788 for (ServiceState serviceState : userState.serviceStateMap.values()) { 1789 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 1790 try { 1791 serviceState.mService.notifyHardwareAdded(info); 1792 } catch (RemoteException e) { 1793 Slog.e(TAG, "error in notifyHardwareAdded", e); 1794 } 1795 } 1796 } 1797 } 1798 1799 @Override 1800 public void onHardwareDeviceRemoved(int deviceId) { 1801 synchronized (mLock) { 1802 UserState userState = getUserStateLocked(mCurrentUserId); 1803 // Broadcast the event to all hardware inputs. 1804 for (ServiceState serviceState : userState.serviceStateMap.values()) { 1805 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 1806 try { 1807 serviceState.mService.notifyHardwareRemoved(deviceId); 1808 } catch (RemoteException e) { 1809 Slog.e(TAG, "error in notifyHardwareRemoved", e); 1810 } 1811 } 1812 } 1813 } 1814 1815 @Override 1816 public void onHdmiCecDeviceAdded(HdmiCecDeviceInfo cecDevice) { 1817 synchronized (mLock) { 1818 // TODO 1819 } 1820 } 1821 1822 @Override 1823 public void onHdmiCecDeviceRemoved(HdmiCecDeviceInfo cecDevice) { 1824 synchronized (mLock) { 1825 // TODO 1826 } 1827 } 1828 } 1829} 1830