TvInputManagerService.java revision 61daf6b38e7a7ada2a6ca5a60539a54b9c6810bd
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.graphics.Rect; 39import android.hardware.hdmi.HdmiDeviceInfo; 40import android.media.tv.ITvInputClient; 41import android.media.tv.ITvInputHardware; 42import android.media.tv.ITvInputHardwareCallback; 43import android.media.tv.ITvInputManager; 44import android.media.tv.ITvInputManagerCallback; 45import android.media.tv.ITvInputService; 46import android.media.tv.ITvInputServiceCallback; 47import android.media.tv.ITvInputSession; 48import android.media.tv.ITvInputSessionCallback; 49import android.media.tv.TvContentRating; 50import android.media.tv.TvContract; 51import android.media.tv.TvInputHardwareInfo; 52import android.media.tv.TvInputInfo; 53import android.media.tv.TvInputService; 54import android.media.tv.TvStreamConfig; 55import android.media.tv.TvTrackInfo; 56import android.net.Uri; 57import android.os.Binder; 58import android.os.Bundle; 59import android.os.Handler; 60import android.os.IBinder; 61import android.os.Looper; 62import android.os.Message; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.UserHandle; 66import android.util.Slog; 67import android.util.SparseArray; 68import android.view.InputChannel; 69import android.view.Surface; 70 71import com.android.internal.content.PackageMonitor; 72import com.android.internal.os.SomeArgs; 73import com.android.internal.util.IndentingPrintWriter; 74import com.android.server.IoThread; 75import com.android.server.SystemService; 76 77import org.xmlpull.v1.XmlPullParserException; 78 79import java.io.FileDescriptor; 80import java.io.IOException; 81import java.io.PrintWriter; 82import java.util.ArrayList; 83import java.util.HashMap; 84import java.util.HashSet; 85import java.util.Iterator; 86import java.util.List; 87import java.util.Map; 88import java.util.Set; 89 90/** This class provides a system service that manages television inputs. */ 91public final class TvInputManagerService extends SystemService { 92 // STOPSHIP: Turn debugging off. 93 private static final boolean DEBUG = true; 94 private static final String TAG = "TvInputManagerService"; 95 96 private final Context mContext; 97 private final TvInputHardwareManager mTvInputHardwareManager; 98 99 private final ContentResolver mContentResolver; 100 101 // A global lock. 102 private final Object mLock = new Object(); 103 104 // ID of the current user. 105 private int mCurrentUserId = UserHandle.USER_OWNER; 106 107 // A map from user id to UserState. 108 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 109 110 private final WatchLogHandler mWatchLogHandler; 111 112 public TvInputManagerService(Context context) { 113 super(context); 114 115 mContext = context; 116 mContentResolver = context.getContentResolver(); 117 mWatchLogHandler = new WatchLogHandler(IoThread.get().getLooper()); 118 119 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 120 121 synchronized (mLock) { 122 mUserStates.put(mCurrentUserId, new UserState(mContext, mCurrentUserId)); 123 } 124 } 125 126 @Override 127 public void onStart() { 128 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 129 } 130 131 @Override 132 public void onBootPhase(int phase) { 133 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 134 registerBroadcastReceivers(); 135 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 136 synchronized (mLock) { 137 buildTvInputListLocked(mCurrentUserId); 138 } 139 } 140 mTvInputHardwareManager.onBootPhase(phase); 141 } 142 143 private void registerBroadcastReceivers() { 144 PackageMonitor monitor = new PackageMonitor() { 145 @Override 146 public void onSomePackagesChanged() { 147 synchronized (mLock) { 148 buildTvInputListLocked(mCurrentUserId); 149 } 150 } 151 152 @Override 153 public void onPackageRemoved(String packageName, int uid) { 154 synchronized (mLock) { 155 UserState userState = getUserStateLocked(mCurrentUserId); 156 if (!userState.packageSet.contains(packageName)) { 157 // Not a TV input package. 158 return; 159 } 160 } 161 162 ArrayList<ContentProviderOperation> operations = 163 new ArrayList<ContentProviderOperation>(); 164 165 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 166 String[] selectionArgs = { packageName }; 167 168 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 169 .withSelection(selection, selectionArgs).build()); 170 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 171 .withSelection(selection, selectionArgs).build()); 172 operations.add(ContentProviderOperation 173 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 174 .withSelection(selection, selectionArgs).build()); 175 176 ContentProviderResult[] results = null; 177 try { 178 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 179 } catch (RemoteException | OperationApplicationException e) { 180 Slog.e(TAG, "error in applyBatch" + e); 181 } 182 183 if (DEBUG) { 184 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 185 + ")"); 186 Slog.d(TAG, "results=" + results); 187 } 188 } 189 }; 190 monitor.register(mContext, null, UserHandle.ALL, true); 191 192 IntentFilter intentFilter = new IntentFilter(); 193 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 194 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 195 mContext.registerReceiverAsUser(new BroadcastReceiver() { 196 @Override 197 public void onReceive(Context context, Intent intent) { 198 String action = intent.getAction(); 199 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 200 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 201 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 202 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 203 } 204 } 205 }, UserHandle.ALL, intentFilter, null, null); 206 } 207 208 private static boolean hasHardwarePermission(PackageManager pm, ComponentName component) { 209 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 210 component.getPackageName()) == PackageManager.PERMISSION_GRANTED; 211 } 212 213 private void buildTvInputListLocked(int userId) { 214 UserState userState = getUserStateLocked(userId); 215 216 Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 217 userState.packageSet.clear(); 218 219 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 220 PackageManager pm = mContext.getPackageManager(); 221 List<ResolveInfo> services = pm.queryIntentServices( 222 new Intent(TvInputService.SERVICE_INTERFACE), 223 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 224 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 225 for (ResolveInfo ri : services) { 226 ServiceInfo si = ri.serviceInfo; 227 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 228 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 229 + android.Manifest.permission.BIND_TV_INPUT); 230 continue; 231 } 232 try { 233 inputList.clear(); 234 ComponentName component = new ComponentName(si.packageName, si.name); 235 if (hasHardwarePermission(pm, component)) { 236 ServiceState serviceState = userState.serviceStateMap.get(component); 237 if (serviceState == null) { 238 // We see this hardware TV input service for the first time; we need to 239 // prepare the ServiceState object so that we can connect to the service and 240 // let it add TvInputInfo objects to mInputList if there's any. 241 serviceState = new ServiceState(component, userId); 242 userState.serviceStateMap.put(component, serviceState); 243 } else { 244 inputList.addAll(serviceState.mInputList); 245 } 246 } else { 247 inputList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 248 } 249 250 for (TvInputInfo info : inputList) { 251 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 252 TvInputState state = userState.inputMap.get(info.getId()); 253 if (state == null) { 254 state = new TvInputState(); 255 } 256 state.mInfo = info; 257 inputMap.put(info.getId(), state); 258 } 259 260 // Reconnect the service if existing input is updated. 261 updateServiceConnectionLocked(component, userId); 262 263 userState.packageSet.add(si.packageName); 264 } catch (IOException | XmlPullParserException e) { 265 Slog.e(TAG, "Can't load TV input " + si.name, e); 266 } 267 } 268 269 for (String inputId : inputMap.keySet()) { 270 if (!userState.inputMap.containsKey(inputId)) { 271 notifyInputAddedLocked(userState, inputId); 272 } 273 } 274 275 for (String inputId : userState.inputMap.keySet()) { 276 if (!inputMap.containsKey(inputId)) { 277 notifyInputRemovedLocked(userState, inputId); 278 } 279 } 280 281 userState.inputMap.clear(); 282 userState.inputMap = inputMap; 283 284 userState.ratingSystemXmlUriSet.clear(); 285 userState.ratingSystemXmlUriSet.add(TvContentRating.SYSTEM_CONTENT_RATING_SYSTEM_XML); 286 for (TvInputState state : userState.inputMap.values()) { 287 Uri ratingSystemXmlUri = state.mInfo.getRatingSystemXmlUri(); 288 if (ratingSystemXmlUri != null) { 289 // TODO: need to check the validation of xml format and the duplication of rating 290 // systems. 291 userState.ratingSystemXmlUriSet.add(state.mInfo.getRatingSystemXmlUri()); 292 } 293 } 294 } 295 296 private void switchUser(int userId) { 297 synchronized (mLock) { 298 if (mCurrentUserId == userId) { 299 return; 300 } 301 // final int oldUserId = mCurrentUserId; 302 // TODO: Release services and sessions in the old user state, if needed. 303 mCurrentUserId = userId; 304 305 UserState userState = mUserStates.get(userId); 306 if (userState == null) { 307 userState = new UserState(mContext, userId); 308 } 309 mUserStates.put(userId, userState); 310 buildTvInputListLocked(userId); 311 } 312 } 313 314 private void removeUser(int userId) { 315 synchronized (mLock) { 316 UserState userState = mUserStates.get(userId); 317 if (userState == null) { 318 return; 319 } 320 // Release created sessions. 321 for (SessionState state : userState.sessionStateMap.values()) { 322 if (state.mSession != null) { 323 try { 324 state.mSession.release(); 325 } catch (RemoteException e) { 326 Slog.e(TAG, "error in release", e); 327 } 328 } 329 } 330 userState.sessionStateMap.clear(); 331 332 // Unregister all callbacks and unbind all services. 333 for (ServiceState serviceState : userState.serviceStateMap.values()) { 334 if (serviceState.mCallback != null) { 335 try { 336 serviceState.mService.unregisterCallback(serviceState.mCallback); 337 } catch (RemoteException e) { 338 Slog.e(TAG, "error in unregisterCallback", e); 339 } 340 } 341 serviceState.mClientTokens.clear(); 342 mContext.unbindService(serviceState.mConnection); 343 } 344 userState.serviceStateMap.clear(); 345 346 userState.clientStateMap.clear(); 347 348 mUserStates.remove(userId); 349 } 350 } 351 352 private UserState getUserStateLocked(int userId) { 353 UserState userState = mUserStates.get(userId); 354 if (userState == null) { 355 throw new IllegalStateException("User state not found for user ID " + userId); 356 } 357 return userState; 358 } 359 360 private ServiceState getServiceStateLocked(ComponentName component, int userId) { 361 UserState userState = getUserStateLocked(userId); 362 ServiceState serviceState = userState.serviceStateMap.get(component); 363 if (serviceState == null) { 364 throw new IllegalStateException("Service state not found for " + component + " (userId=" 365 + userId + ")"); 366 } 367 return serviceState; 368 } 369 370 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 371 UserState userState = getUserStateLocked(userId); 372 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 373 if (sessionState == null) { 374 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 375 } 376 // Only the application that requested this session or the system can access it. 377 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 378 throw new SecurityException("Illegal access to the session with token " + sessionToken 379 + " from uid " + callingUid); 380 } 381 return sessionState; 382 } 383 384 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 385 return getSessionLocked(getSessionStateLocked(sessionToken, callingUid, userId)); 386 } 387 388 private ITvInputSession getSessionLocked(SessionState sessionState) { 389 ITvInputSession session = sessionState.mSession; 390 if (session == null) { 391 throw new IllegalStateException("Session not yet created for token " 392 + sessionState.mSessionToken); 393 } 394 return session; 395 } 396 397 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 398 String methodName) { 399 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 400 false, methodName, null); 401 } 402 403 private static boolean shouldMaintainConnection(ServiceState serviceState) { 404 return !serviceState.mClientTokens.isEmpty() 405 || !serviceState.mSessionTokens.isEmpty() 406 || serviceState.mIsHardware; 407 // TODO: Find a way to maintain connection only when necessary. 408 } 409 410 private void updateServiceConnectionLocked(ComponentName component, int userId) { 411 UserState userState = getUserStateLocked(userId); 412 ServiceState serviceState = userState.serviceStateMap.get(component); 413 if (serviceState == null) { 414 return; 415 } 416 if (serviceState.mReconnecting) { 417 if (!serviceState.mSessionTokens.isEmpty()) { 418 // wait until all the sessions are removed. 419 return; 420 } 421 serviceState.mReconnecting = false; 422 } 423 boolean maintainConnection = shouldMaintainConnection(serviceState); 424 if (serviceState.mService == null && maintainConnection && userId == mCurrentUserId) { 425 // This means that the service is not yet connected but its state indicates that we 426 // have pending requests. Then, connect the service. 427 if (serviceState.mBound) { 428 // We have already bound to the service so we don't try to bind again until after we 429 // unbind later on. 430 return; 431 } 432 if (DEBUG) { 433 Slog.d(TAG, "bindServiceAsUser(service=" + component + ", userId=" + userId + ")"); 434 } 435 436 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(component); 437 // Binding service may fail if the service is updating. 438 // In that case, the connection will be revived in buildTvInputListLocked called by 439 // onSomePackagesChanged. 440 serviceState.mBound = mContext.bindServiceAsUser( 441 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 442 } else if (serviceState.mService != null && !maintainConnection) { 443 // This means that the service is already connected but its state indicates that we have 444 // nothing to do with it. Then, disconnect the service. 445 if (DEBUG) { 446 Slog.d(TAG, "unbindService(service=" + component + ")"); 447 } 448 mContext.unbindService(serviceState.mConnection); 449 userState.serviceStateMap.remove(component); 450 } 451 } 452 453 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 454 UserState userState = getUserStateLocked(userId); 455 ClientState clientState = new ClientState(clientToken, userId); 456 try { 457 clientToken.linkToDeath(clientState, 0); 458 } catch (RemoteException e) { 459 Slog.e(TAG, "Client is already died."); 460 } 461 userState.clientStateMap.put(clientToken, clientState); 462 return clientState; 463 } 464 465 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 466 final int userId) { 467 final UserState userState = getUserStateLocked(userId); 468 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 469 if (DEBUG) { 470 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInfo.getId() + ")"); 471 } 472 473 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 474 475 // Set up a callback to send the session token. 476 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 477 @Override 478 public void onSessionCreated(ITvInputSession session, IBinder harewareSessionToken) { 479 if (DEBUG) { 480 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInfo.getId() + ")"); 481 } 482 synchronized (mLock) { 483 sessionState.mSession = session; 484 sessionState.mHardwareSessionToken = harewareSessionToken; 485 if (session == null) { 486 removeSessionStateLocked(sessionToken, userId); 487 sendSessionTokenToClientLocked(sessionState.mClient, 488 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 489 } else { 490 try { 491 session.asBinder().linkToDeath(sessionState, 0); 492 } catch (RemoteException e) { 493 Slog.e(TAG, "Session is already died."); 494 } 495 496 IBinder clientToken = sessionState.mClient.asBinder(); 497 ClientState clientState = userState.clientStateMap.get(clientToken); 498 if (clientState == null) { 499 clientState = createClientStateLocked(clientToken, userId); 500 } 501 clientState.mSessionTokens.add(sessionState.mSessionToken); 502 503 sendSessionTokenToClientLocked(sessionState.mClient, 504 sessionState.mInfo.getId(), sessionToken, channels[0], 505 sessionState.mSeq); 506 } 507 channels[0].dispose(); 508 } 509 } 510 511 @Override 512 public void onChannelRetuned(Uri channelUri) { 513 synchronized (mLock) { 514 if (DEBUG) { 515 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 516 } 517 if (sessionState.mSession == null || sessionState.mClient == null) { 518 return; 519 } 520 try { 521 // TODO: Consider adding this channel change in the watch log. When we do 522 // that, how we can protect the watch log from malicious tv inputs should 523 // be addressed. e.g. add a field which represents where the channel change 524 // originated from. 525 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 526 } catch (RemoteException e) { 527 Slog.e(TAG, "error in onChannelRetuned"); 528 } 529 } 530 } 531 532 @Override 533 public void onTracksChanged(List<TvTrackInfo> tracks) { 534 synchronized (mLock) { 535 if (DEBUG) { 536 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 537 } 538 if (sessionState.mSession == null || sessionState.mClient == null) { 539 return; 540 } 541 try { 542 sessionState.mClient.onTracksChanged(tracks, sessionState.mSeq); 543 } catch (RemoteException e) { 544 Slog.e(TAG, "error in onTracksChanged"); 545 } 546 } 547 } 548 549 @Override 550 public void onTrackSelected(int type, String trackId) { 551 synchronized (mLock) { 552 if (DEBUG) { 553 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 554 } 555 if (sessionState.mSession == null || sessionState.mClient == null) { 556 return; 557 } 558 try { 559 sessionState.mClient.onTrackSelected(type, trackId, sessionState.mSeq); 560 } catch (RemoteException e) { 561 Slog.e(TAG, "error in onTrackSelected"); 562 } 563 } 564 } 565 566 @Override 567 public void onVideoAvailable() { 568 synchronized (mLock) { 569 if (DEBUG) { 570 Slog.d(TAG, "onVideoAvailable()"); 571 } 572 if (sessionState.mSession == null || sessionState.mClient == null) { 573 return; 574 } 575 try { 576 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 577 } catch (RemoteException e) { 578 Slog.e(TAG, "error in onVideoAvailable"); 579 } 580 } 581 } 582 583 @Override 584 public void onVideoUnavailable(int reason) { 585 synchronized (mLock) { 586 if (DEBUG) { 587 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 588 } 589 if (sessionState.mSession == null || sessionState.mClient == null) { 590 return; 591 } 592 try { 593 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 594 } catch (RemoteException e) { 595 Slog.e(TAG, "error in onVideoUnavailable"); 596 } 597 } 598 } 599 600 @Override 601 public void onContentAllowed() { 602 synchronized (mLock) { 603 if (DEBUG) { 604 Slog.d(TAG, "onContentAllowed()"); 605 } 606 if (sessionState.mSession == null || sessionState.mClient == null) { 607 return; 608 } 609 try { 610 sessionState.mClient.onContentAllowed(sessionState.mSeq); 611 } catch (RemoteException e) { 612 Slog.e(TAG, "error in onContentAllowed"); 613 } 614 } 615 } 616 617 @Override 618 public void onContentBlocked(String rating) { 619 synchronized (mLock) { 620 if (DEBUG) { 621 Slog.d(TAG, "onContentBlocked()"); 622 } 623 if (sessionState.mSession == null || sessionState.mClient == null) { 624 return; 625 } 626 try { 627 sessionState.mClient.onContentBlocked(rating, sessionState.mSeq); 628 } catch (RemoteException e) { 629 Slog.e(TAG, "error in onContentBlocked"); 630 } 631 } 632 } 633 634 @Override 635 public void onLayoutSurface(int left, int top, int right, int bottom) { 636 synchronized (mLock) { 637 if (DEBUG) { 638 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 639 + ", right=" + right + ", bottom=" + bottom + ",)"); 640 } 641 if (sessionState.mSession == null || sessionState.mClient == null) { 642 return; 643 } 644 try { 645 sessionState.mClient.onLayoutSurface(left, top, right, bottom, 646 sessionState.mSeq); 647 } catch (RemoteException e) { 648 Slog.e(TAG, "error in onLayoutSurface"); 649 } 650 } 651 } 652 653 @Override 654 public void onSessionEvent(String eventType, Bundle eventArgs) { 655 synchronized (mLock) { 656 if (DEBUG) { 657 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 658 } 659 if (sessionState.mSession == null || sessionState.mClient == null) { 660 return; 661 } 662 try { 663 sessionState.mClient.onSessionEvent(eventType, eventArgs, 664 sessionState.mSeq); 665 } catch (RemoteException e) { 666 Slog.e(TAG, "error in onSessionEvent"); 667 } 668 } 669 } 670 }; 671 672 // Create a session. When failed, send a null token immediately. 673 try { 674 service.createSession(channels[1], callback, sessionState.mInfo.getId()); 675 } catch (RemoteException e) { 676 Slog.e(TAG, "error in createSession", e); 677 removeSessionStateLocked(sessionToken, userId); 678 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInfo.getId(), null, 679 null, sessionState.mSeq); 680 } 681 channels[1].dispose(); 682 } 683 684 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 685 IBinder sessionToken, InputChannel channel, int seq) { 686 try { 687 client.onSessionCreated(inputId, sessionToken, channel, seq); 688 } catch (RemoteException exception) { 689 Slog.e(TAG, "error in onSessionCreated", exception); 690 } 691 } 692 693 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 694 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 695 if (sessionState.mSession != null) { 696 try { 697 sessionState.mSession.release(); 698 } catch (RemoteException e) { 699 Slog.w(TAG, "session is already disapeared", e); 700 } 701 sessionState.mSession = null; 702 } 703 removeSessionStateLocked(sessionToken, userId); 704 } 705 706 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 707 UserState userState = getUserStateLocked(userId); 708 if (sessionToken == userState.mainSessionToken) { 709 userState.mainSessionToken = null; 710 } 711 712 // Remove the session state from the global session state map of the current user. 713 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 714 715 if (sessionState == null) { 716 return; 717 } 718 719 // Also remove the session token from the session token list of the current client and 720 // service. 721 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 722 if (clientState != null) { 723 clientState.mSessionTokens.remove(sessionToken); 724 if (clientState.isEmpty()) { 725 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 726 } 727 } 728 729 TvInputInfo info = sessionState.mInfo; 730 if (info != null) { 731 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 732 if (serviceState != null) { 733 serviceState.mSessionTokens.remove(sessionToken); 734 } 735 } 736 updateServiceConnectionLocked(sessionState.mInfo.getComponent(), userId); 737 738 // Log the end of watch. 739 SomeArgs args = SomeArgs.obtain(); 740 args.arg1 = sessionToken; 741 args.arg2 = System.currentTimeMillis(); 742 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_END, args).sendToTarget(); 743 } 744 745 private void notifyInputAddedLocked(UserState userState, String inputId) { 746 if (DEBUG) { 747 Slog.d(TAG, "notifyInputAdded: inputId = " + inputId); 748 } 749 for (ITvInputManagerCallback callback : userState.callbackSet) { 750 try { 751 callback.onInputAdded(inputId); 752 } catch (RemoteException e) { 753 Slog.e(TAG, "Failed to report added input to callback."); 754 } 755 } 756 } 757 758 private void notifyInputRemovedLocked(UserState userState, String inputId) { 759 if (DEBUG) { 760 Slog.d(TAG, "notifyInputRemovedLocked: inputId = " + inputId); 761 } 762 for (ITvInputManagerCallback callback : userState.callbackSet) { 763 try { 764 callback.onInputRemoved(inputId); 765 } catch (RemoteException e) { 766 Slog.e(TAG, "Failed to report removed input to callback."); 767 } 768 } 769 } 770 771 private void notifyInputStateChangedLocked(UserState userState, String inputId, 772 int state, ITvInputManagerCallback targetCallback) { 773 if (DEBUG) { 774 Slog.d(TAG, "notifyInputStateChangedLocked: inputId = " + inputId 775 + "; state = " + state); 776 } 777 if (targetCallback == null) { 778 for (ITvInputManagerCallback callback : userState.callbackSet) { 779 try { 780 callback.onInputStateChanged(inputId, state); 781 } catch (RemoteException e) { 782 Slog.e(TAG, "Failed to report state change to callback."); 783 } 784 } 785 } else { 786 try { 787 targetCallback.onInputStateChanged(inputId, state); 788 } catch (RemoteException e) { 789 Slog.e(TAG, "Failed to report state change to callback."); 790 } 791 } 792 } 793 794 private void setStateLocked(String inputId, int state, int userId) { 795 UserState userState = getUserStateLocked(userId); 796 TvInputState inputState = userState.inputMap.get(inputId); 797 ServiceState serviceState = userState.serviceStateMap.get(inputState.mInfo.getComponent()); 798 int oldState = inputState.mState; 799 inputState.mState = state; 800 if (serviceState != null && serviceState.mService == null 801 && shouldMaintainConnection(serviceState)) { 802 // We don't notify state change while reconnecting. It should remain disconnected. 803 return; 804 } 805 if (oldState != state) { 806 notifyInputStateChangedLocked(userState, inputId, state, null); 807 } 808 } 809 810 private final class BinderService extends ITvInputManager.Stub { 811 @Override 812 public List<TvInputInfo> getTvInputList(int userId) { 813 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 814 Binder.getCallingUid(), userId, "getTvInputList"); 815 final long identity = Binder.clearCallingIdentity(); 816 try { 817 synchronized (mLock) { 818 UserState userState = getUserStateLocked(resolvedUserId); 819 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 820 for (TvInputState state : userState.inputMap.values()) { 821 inputList.add(state.mInfo); 822 } 823 return inputList; 824 } 825 } finally { 826 Binder.restoreCallingIdentity(identity); 827 } 828 } 829 830 @Override 831 public TvInputInfo getTvInputInfo(String inputId, int userId) { 832 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 833 Binder.getCallingUid(), userId, "getTvInputInfo"); 834 final long identity = Binder.clearCallingIdentity(); 835 try { 836 synchronized (mLock) { 837 UserState userState = getUserStateLocked(resolvedUserId); 838 TvInputState state = userState.inputMap.get(inputId); 839 return state == null ? null : state.mInfo; 840 } 841 } finally { 842 Binder.restoreCallingIdentity(identity); 843 } 844 } 845 846 @Override 847 public List<Uri> getTvContentRatingSystemXmls(int userId) { 848 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 849 Binder.getCallingUid(), userId, "getTvContentRatingSystemXmls"); 850 final long identity = Binder.clearCallingIdentity(); 851 try { 852 synchronized (mLock) { 853 UserState userState = getUserStateLocked(resolvedUserId); 854 List<Uri> ratingSystemXmlUriList = new ArrayList<Uri>(); 855 ratingSystemXmlUriList.addAll(userState.ratingSystemXmlUriSet); 856 return ratingSystemXmlUriList; 857 } 858 } finally { 859 Binder.restoreCallingIdentity(identity); 860 } 861 } 862 863 @Override 864 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 865 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 866 Binder.getCallingUid(), userId, "registerCallback"); 867 final long identity = Binder.clearCallingIdentity(); 868 try { 869 synchronized (mLock) { 870 UserState userState = getUserStateLocked(resolvedUserId); 871 userState.callbackSet.add(callback); 872 for (TvInputState state : userState.inputMap.values()) { 873 notifyInputStateChangedLocked(userState, state.mInfo.getId(), 874 state.mState, callback); 875 } 876 } 877 } finally { 878 Binder.restoreCallingIdentity(identity); 879 } 880 } 881 882 @Override 883 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 884 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 885 Binder.getCallingUid(), userId, "unregisterCallback"); 886 final long identity = Binder.clearCallingIdentity(); 887 try { 888 synchronized (mLock) { 889 UserState userState = getUserStateLocked(resolvedUserId); 890 userState.callbackSet.remove(callback); 891 } 892 } finally { 893 Binder.restoreCallingIdentity(identity); 894 } 895 } 896 897 @Override 898 public boolean isParentalControlsEnabled(int userId) { 899 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 900 Binder.getCallingUid(), userId, "isParentalControlsEnabled"); 901 final long identity = Binder.clearCallingIdentity(); 902 try { 903 synchronized (mLock) { 904 UserState userState = getUserStateLocked(resolvedUserId); 905 return userState.persistentDataStore.isParentalControlsEnabled(); 906 } 907 } finally { 908 Binder.restoreCallingIdentity(identity); 909 } 910 } 911 912 @Override 913 public void setParentalControlsEnabled(boolean enabled, int userId) { 914 ensureParentalControlsPermission(); 915 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 916 Binder.getCallingUid(), userId, "setParentalControlsEnabled"); 917 final long identity = Binder.clearCallingIdentity(); 918 try { 919 synchronized (mLock) { 920 UserState userState = getUserStateLocked(resolvedUserId); 921 userState.persistentDataStore.setParentalControlsEnabled(enabled); 922 } 923 } finally { 924 Binder.restoreCallingIdentity(identity); 925 } 926 } 927 928 @Override 929 public boolean isRatingBlocked(String rating, int userId) { 930 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 931 Binder.getCallingUid(), userId, "isRatingBlocked"); 932 final long identity = Binder.clearCallingIdentity(); 933 try { 934 synchronized (mLock) { 935 UserState userState = getUserStateLocked(resolvedUserId); 936 return userState.persistentDataStore.isRatingBlocked( 937 TvContentRating.unflattenFromString(rating)); 938 } 939 } finally { 940 Binder.restoreCallingIdentity(identity); 941 } 942 } 943 944 @Override 945 public List<String> getBlockedRatings(int userId) { 946 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 947 Binder.getCallingUid(), userId, "getBlockedRatings"); 948 final long identity = Binder.clearCallingIdentity(); 949 try { 950 synchronized (mLock) { 951 UserState userState = getUserStateLocked(resolvedUserId); 952 List<String> ratings = new ArrayList<String>(); 953 for (TvContentRating rating 954 : userState.persistentDataStore.getBlockedRatings()) { 955 ratings.add(rating.flattenToString()); 956 } 957 return ratings; 958 } 959 } finally { 960 Binder.restoreCallingIdentity(identity); 961 } 962 } 963 964 @Override 965 public void addBlockedRating(String rating, int userId) { 966 ensureParentalControlsPermission(); 967 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 968 Binder.getCallingUid(), userId, "addBlockedRating"); 969 final long identity = Binder.clearCallingIdentity(); 970 try { 971 synchronized (mLock) { 972 UserState userState = getUserStateLocked(resolvedUserId); 973 userState.persistentDataStore.addBlockedRating( 974 TvContentRating.unflattenFromString(rating)); 975 } 976 } finally { 977 Binder.restoreCallingIdentity(identity); 978 } 979 } 980 981 @Override 982 public void removeBlockedRating(String rating, int userId) { 983 ensureParentalControlsPermission(); 984 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 985 Binder.getCallingUid(), userId, "removeBlockedRating"); 986 final long identity = Binder.clearCallingIdentity(); 987 try { 988 synchronized (mLock) { 989 UserState userState = getUserStateLocked(resolvedUserId); 990 userState.persistentDataStore.removeBlockedRating( 991 TvContentRating.unflattenFromString(rating)); 992 } 993 } finally { 994 Binder.restoreCallingIdentity(identity); 995 } 996 } 997 998 private void ensureParentalControlsPermission() { 999 if (mContext.checkCallingPermission( 1000 android.Manifest.permission.MODIFY_PARENTAL_CONTROLS) 1001 != PackageManager.PERMISSION_GRANTED) { 1002 throw new SecurityException( 1003 "The caller does not have parental controls permission"); 1004 } 1005 } 1006 1007 @Override 1008 public void createSession(final ITvInputClient client, final String inputId, 1009 int seq, int userId) { 1010 final int callingUid = Binder.getCallingUid(); 1011 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1012 userId, "createSession"); 1013 final long identity = Binder.clearCallingIdentity(); 1014 try { 1015 synchronized (mLock) { 1016 UserState userState = getUserStateLocked(resolvedUserId); 1017 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 1018 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 1019 if (serviceState == null) { 1020 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 1021 userState.serviceStateMap.put(info.getComponent(), serviceState); 1022 } 1023 // Send a null token immediately while reconnecting. 1024 if (serviceState.mReconnecting == true) { 1025 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1026 return; 1027 } 1028 1029 // Create a new session token and a session state. 1030 IBinder sessionToken = new Binder(); 1031 SessionState sessionState = new SessionState(sessionToken, info, client, 1032 seq, callingUid, resolvedUserId); 1033 1034 // Add them to the global session state map of the current user. 1035 userState.sessionStateMap.put(sessionToken, sessionState); 1036 1037 // Also, add them to the session state map of the current service. 1038 serviceState.mSessionTokens.add(sessionToken); 1039 1040 if (serviceState.mService != null) { 1041 createSessionInternalLocked(serviceState.mService, sessionToken, 1042 resolvedUserId); 1043 } else { 1044 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 1045 } 1046 } 1047 } finally { 1048 Binder.restoreCallingIdentity(identity); 1049 } 1050 } 1051 1052 @Override 1053 public void releaseSession(IBinder sessionToken, int userId) { 1054 final int callingUid = Binder.getCallingUid(); 1055 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1056 userId, "releaseSession"); 1057 final long identity = Binder.clearCallingIdentity(); 1058 try { 1059 synchronized (mLock) { 1060 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 1061 } 1062 } finally { 1063 Binder.restoreCallingIdentity(identity); 1064 } 1065 } 1066 1067 @Override 1068 public void setMainSession(IBinder sessionToken, int userId) { 1069 final int callingUid = Binder.getCallingUid(); 1070 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1071 userId, "setMainSession"); 1072 final long identity = Binder.clearCallingIdentity(); 1073 try { 1074 synchronized (mLock) { 1075 UserState userState = getUserStateLocked(resolvedUserId); 1076 if (userState.mainSessionToken == sessionToken) { 1077 return; 1078 } 1079 1080 SessionState newMainSessionState = getSessionStateLocked( 1081 sessionToken, callingUid, resolvedUserId); 1082 if (newMainSessionState.mHardwareSessionToken != null) { 1083 newMainSessionState = getSessionStateLocked( 1084 newMainSessionState.mHardwareSessionToken, 1085 Process.SYSTEM_UID, resolvedUserId); 1086 } 1087 ServiceState newMainServiceState = getServiceStateLocked( 1088 newMainSessionState.mInfo.getComponent(), resolvedUserId); 1089 ITvInputSession newMainSession = getSessionLocked(newMainSessionState); 1090 1091 ServiceState oldMainServiceState = null; 1092 ITvInputSession oldMainSession = null; 1093 if (userState.mainSessionToken != null) { 1094 SessionState oldMainSessionState = getSessionStateLocked( 1095 userState.mainSessionToken, Process.SYSTEM_UID, resolvedUserId); 1096 if (oldMainSessionState.mHardwareSessionToken != null) { 1097 oldMainSessionState = getSessionStateLocked( 1098 oldMainSessionState.mHardwareSessionToken, 1099 Process.SYSTEM_UID, resolvedUserId); 1100 } 1101 oldMainServiceState = getServiceStateLocked( 1102 oldMainSessionState.mInfo.getComponent(), resolvedUserId); 1103 oldMainSession = getSessionLocked(oldMainSessionState); 1104 } 1105 1106 userState.mainSessionToken = sessionToken; 1107 1108 // Inform the new main session first. 1109 // See {@link TvInputService#onSetMainSession}. 1110 if (newMainServiceState.mIsHardware) { 1111 try { 1112 newMainSession.setMainSession(true); 1113 } catch (RemoteException e) { 1114 Slog.e(TAG, "error in setMainSession", e); 1115 } 1116 } 1117 if (oldMainSession != null && oldMainServiceState.mIsHardware) { 1118 try { 1119 oldMainSession.setMainSession(false); 1120 } catch (RemoteException e) { 1121 Slog.e(TAG, "error in setMainSession", e); 1122 } 1123 } 1124 } 1125 } finally { 1126 Binder.restoreCallingIdentity(identity); 1127 } 1128 } 1129 1130 @Override 1131 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1132 final int callingUid = Binder.getCallingUid(); 1133 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1134 userId, "setSurface"); 1135 final long identity = Binder.clearCallingIdentity(); 1136 try { 1137 synchronized (mLock) { 1138 try { 1139 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1140 resolvedUserId); 1141 if (sessionState.mHardwareSessionToken == null) { 1142 getSessionLocked(sessionState).setSurface(surface); 1143 } else { 1144 getSessionLocked(sessionState.mHardwareSessionToken, 1145 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1146 } 1147 } catch (RemoteException e) { 1148 Slog.e(TAG, "error in setSurface", e); 1149 } 1150 } 1151 } finally { 1152 if (surface != null) { 1153 // surface is not used in TvInputManagerService. 1154 surface.release(); 1155 } 1156 Binder.restoreCallingIdentity(identity); 1157 } 1158 } 1159 1160 @Override 1161 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1162 int height, int userId) { 1163 final int callingUid = Binder.getCallingUid(); 1164 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1165 userId, "dispatchSurfaceChanged"); 1166 final long identity = Binder.clearCallingIdentity(); 1167 try { 1168 synchronized (mLock) { 1169 try { 1170 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1171 resolvedUserId); 1172 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, height); 1173 if (sessionState.mHardwareSessionToken != null) { 1174 getSessionLocked(sessionState.mHardwareSessionToken, Process.SYSTEM_UID, 1175 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1176 } 1177 } catch (RemoteException e) { 1178 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1179 } 1180 } 1181 } finally { 1182 Binder.restoreCallingIdentity(identity); 1183 } 1184 } 1185 1186 @Override 1187 public void setVolume(IBinder sessionToken, float volume, int userId) { 1188 final float REMOTE_VOLUME_ON = 1.0f; 1189 final float REMOTE_VOLUME_OFF = 0f; 1190 final int callingUid = Binder.getCallingUid(); 1191 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1192 userId, "setVolume"); 1193 final long identity = Binder.clearCallingIdentity(); 1194 try { 1195 synchronized (mLock) { 1196 try { 1197 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1198 resolvedUserId); 1199 getSessionLocked(sessionState).setVolume(volume); 1200 if (sessionState.mHardwareSessionToken != null) { 1201 // Here, we let the hardware session know only whether volume is on or 1202 // off to prevent that the volume is controlled in the both side. 1203 getSessionLocked(sessionState.mHardwareSessionToken, 1204 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1205 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1206 } 1207 } catch (RemoteException e) { 1208 Slog.e(TAG, "error in setVolume", e); 1209 } 1210 } 1211 } finally { 1212 Binder.restoreCallingIdentity(identity); 1213 } 1214 } 1215 1216 @Override 1217 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1218 final int callingUid = Binder.getCallingUid(); 1219 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1220 userId, "tune"); 1221 final long identity = Binder.clearCallingIdentity(); 1222 try { 1223 synchronized (mLock) { 1224 try { 1225 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1226 channelUri, params); 1227 if (TvContract.isChannelUriForPassthroughTvInput(channelUri)) { 1228 // Do not log the watch history for passthrough inputs. 1229 return; 1230 } 1231 1232 UserState userState = getUserStateLocked(resolvedUserId); 1233 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1234 1235 // Log the start of watch. 1236 SomeArgs args = SomeArgs.obtain(); 1237 args.arg1 = sessionState.mInfo.getComponent().getPackageName(); 1238 args.arg2 = System.currentTimeMillis(); 1239 args.arg3 = ContentUris.parseId(channelUri); 1240 args.arg4 = params; 1241 args.arg5 = sessionToken; 1242 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_START, args) 1243 .sendToTarget(); 1244 } catch (RemoteException e) { 1245 Slog.e(TAG, "error in tune", e); 1246 return; 1247 } 1248 } 1249 } finally { 1250 Binder.restoreCallingIdentity(identity); 1251 } 1252 } 1253 1254 @Override 1255 public void requestUnblockContent( 1256 IBinder sessionToken, String unblockedRating, int userId) { 1257 final int callingUid = Binder.getCallingUid(); 1258 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1259 userId, "unblockContent"); 1260 final long identity = Binder.clearCallingIdentity(); 1261 try { 1262 synchronized (mLock) { 1263 try { 1264 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1265 .requestUnblockContent(unblockedRating); 1266 } catch (RemoteException e) { 1267 Slog.e(TAG, "error in unblockContent", e); 1268 } 1269 } 1270 } finally { 1271 Binder.restoreCallingIdentity(identity); 1272 } 1273 } 1274 1275 @Override 1276 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1277 final int callingUid = Binder.getCallingUid(); 1278 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1279 userId, "setCaptionEnabled"); 1280 final long identity = Binder.clearCallingIdentity(); 1281 try { 1282 synchronized (mLock) { 1283 try { 1284 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1285 .setCaptionEnabled(enabled); 1286 } catch (RemoteException e) { 1287 Slog.e(TAG, "error in setCaptionEnabled", e); 1288 } 1289 } 1290 } finally { 1291 Binder.restoreCallingIdentity(identity); 1292 } 1293 } 1294 1295 @Override 1296 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1297 final int callingUid = Binder.getCallingUid(); 1298 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1299 userId, "selectTrack"); 1300 final long identity = Binder.clearCallingIdentity(); 1301 try { 1302 synchronized (mLock) { 1303 try { 1304 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1305 type, trackId); 1306 } catch (RemoteException e) { 1307 Slog.e(TAG, "error in selectTrack", e); 1308 } 1309 } 1310 } finally { 1311 Binder.restoreCallingIdentity(identity); 1312 } 1313 } 1314 1315 @Override 1316 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1317 int userId) { 1318 final int callingUid = Binder.getCallingUid(); 1319 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1320 userId, "sendAppPrivateCommand"); 1321 final long identity = Binder.clearCallingIdentity(); 1322 try { 1323 synchronized (mLock) { 1324 try { 1325 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1326 .appPrivateCommand(command, data); 1327 } catch (RemoteException e) { 1328 Slog.e(TAG, "error in sendAppPrivateCommand", e); 1329 } 1330 } 1331 } finally { 1332 Binder.restoreCallingIdentity(identity); 1333 } 1334 } 1335 1336 @Override 1337 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1338 int userId) { 1339 final int callingUid = Binder.getCallingUid(); 1340 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1341 userId, "createOverlayView"); 1342 final long identity = Binder.clearCallingIdentity(); 1343 try { 1344 synchronized (mLock) { 1345 try { 1346 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1347 .createOverlayView(windowToken, frame); 1348 } catch (RemoteException e) { 1349 Slog.e(TAG, "error in createOverlayView", e); 1350 } 1351 } 1352 } finally { 1353 Binder.restoreCallingIdentity(identity); 1354 } 1355 } 1356 1357 @Override 1358 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1359 final int callingUid = Binder.getCallingUid(); 1360 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1361 userId, "relayoutOverlayView"); 1362 final long identity = Binder.clearCallingIdentity(); 1363 try { 1364 synchronized (mLock) { 1365 try { 1366 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1367 .relayoutOverlayView(frame); 1368 } catch (RemoteException e) { 1369 Slog.e(TAG, "error in relayoutOverlayView", e); 1370 } 1371 } 1372 } finally { 1373 Binder.restoreCallingIdentity(identity); 1374 } 1375 } 1376 1377 @Override 1378 public void removeOverlayView(IBinder sessionToken, int userId) { 1379 final int callingUid = Binder.getCallingUid(); 1380 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1381 userId, "removeOverlayView"); 1382 final long identity = Binder.clearCallingIdentity(); 1383 try { 1384 synchronized (mLock) { 1385 try { 1386 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1387 .removeOverlayView(); 1388 } catch (RemoteException e) { 1389 Slog.e(TAG, "error in removeOverlayView", e); 1390 } 1391 } 1392 } finally { 1393 Binder.restoreCallingIdentity(identity); 1394 } 1395 } 1396 1397 @Override 1398 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1399 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1400 != PackageManager.PERMISSION_GRANTED) { 1401 return null; 1402 } 1403 1404 final long identity = Binder.clearCallingIdentity(); 1405 try { 1406 return mTvInputHardwareManager.getHardwareList(); 1407 } finally { 1408 Binder.restoreCallingIdentity(identity); 1409 } 1410 } 1411 1412 @Override 1413 public ITvInputHardware acquireTvInputHardware(int deviceId, 1414 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1415 throws RemoteException { 1416 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1417 != PackageManager.PERMISSION_GRANTED) { 1418 return null; 1419 } 1420 1421 final long identity = Binder.clearCallingIdentity(); 1422 final int callingUid = Binder.getCallingUid(); 1423 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1424 userId, "acquireTvInputHardware"); 1425 try { 1426 return mTvInputHardwareManager.acquireHardware( 1427 deviceId, callback, info, callingUid, resolvedUserId); 1428 } finally { 1429 Binder.restoreCallingIdentity(identity); 1430 } 1431 } 1432 1433 @Override 1434 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1435 throws RemoteException { 1436 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1437 != PackageManager.PERMISSION_GRANTED) { 1438 return; 1439 } 1440 1441 final long identity = Binder.clearCallingIdentity(); 1442 final int callingUid = Binder.getCallingUid(); 1443 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1444 userId, "releaseTvInputHardware"); 1445 try { 1446 mTvInputHardwareManager.releaseHardware( 1447 deviceId, hardware, callingUid, resolvedUserId); 1448 } finally { 1449 Binder.restoreCallingIdentity(identity); 1450 } 1451 } 1452 1453 @Override 1454 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1455 throws RemoteException { 1456 if (mContext.checkCallingPermission( 1457 android.Manifest.permission.CAPTURE_TV_INPUT) 1458 != PackageManager.PERMISSION_GRANTED) { 1459 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1460 } 1461 1462 final long identity = Binder.clearCallingIdentity(); 1463 final int callingUid = Binder.getCallingUid(); 1464 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1465 userId, "getAvailableTvStreamConfigList"); 1466 try { 1467 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1468 inputId, callingUid, resolvedUserId); 1469 } finally { 1470 Binder.restoreCallingIdentity(identity); 1471 } 1472 } 1473 1474 @Override 1475 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1476 int userId) 1477 throws RemoteException { 1478 if (mContext.checkCallingPermission( 1479 android.Manifest.permission.CAPTURE_TV_INPUT) 1480 != PackageManager.PERMISSION_GRANTED) { 1481 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1482 } 1483 1484 final long identity = Binder.clearCallingIdentity(); 1485 final int callingUid = Binder.getCallingUid(); 1486 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1487 userId, "captureFrame"); 1488 try { 1489 String hardwareInputId = null; 1490 synchronized (mLock) { 1491 UserState userState = getUserStateLocked(resolvedUserId); 1492 if (userState.inputMap.get(inputId) == null) { 1493 Slog.e(TAG, "Input not found for " + inputId); 1494 return false; 1495 } 1496 for (SessionState sessionState : userState.sessionStateMap.values()) { 1497 if (sessionState.mInfo.getId().equals(inputId) 1498 && sessionState.mHardwareSessionToken != null) { 1499 hardwareInputId = userState.sessionStateMap.get( 1500 sessionState.mHardwareSessionToken).mInfo.getId(); 1501 break; 1502 } 1503 } 1504 } 1505 return mTvInputHardwareManager.captureFrame( 1506 (hardwareInputId != null) ? hardwareInputId : inputId, 1507 surface, config, callingUid, resolvedUserId); 1508 } finally { 1509 Binder.restoreCallingIdentity(identity); 1510 } 1511 } 1512 1513 @Override 1514 public boolean isSingleSessionActive(int userId) throws RemoteException { 1515 final long identity = Binder.clearCallingIdentity(); 1516 final int callingUid = Binder.getCallingUid(); 1517 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1518 userId, "isSingleSessionActive"); 1519 try { 1520 synchronized (mLock) { 1521 UserState userState = getUserStateLocked(resolvedUserId); 1522 if (userState.sessionStateMap.size() == 1) { 1523 return true; 1524 } 1525 else if (userState.sessionStateMap.size() == 2) { 1526 SessionState[] sessionStates = userState.sessionStateMap.values().toArray( 1527 new SessionState[0]); 1528 // Check if there is a wrapper input. 1529 if (sessionStates[0].mHardwareSessionToken != null 1530 || sessionStates[1].mHardwareSessionToken != null) { 1531 return true; 1532 } 1533 } 1534 return false; 1535 } 1536 } finally { 1537 Binder.restoreCallingIdentity(identity); 1538 } 1539 } 1540 1541 @Override 1542 @SuppressWarnings("resource") 1543 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1544 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1545 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1546 != PackageManager.PERMISSION_GRANTED) { 1547 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1548 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1549 return; 1550 } 1551 1552 synchronized (mLock) { 1553 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1554 pw.increaseIndent(); 1555 for (int i = 0; i < mUserStates.size(); i++) { 1556 int userId = mUserStates.keyAt(i); 1557 pw.println(Integer.valueOf(userId)); 1558 } 1559 pw.decreaseIndent(); 1560 1561 for (int i = 0; i < mUserStates.size(); i++) { 1562 int userId = mUserStates.keyAt(i); 1563 UserState userState = getUserStateLocked(userId); 1564 pw.println("UserState (" + userId + "):"); 1565 pw.increaseIndent(); 1566 1567 pw.println("inputMap: inputId -> TvInputState"); 1568 pw.increaseIndent(); 1569 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 1570 pw.println(entry.getKey() + ": " + entry.getValue()); 1571 } 1572 pw.decreaseIndent(); 1573 1574 pw.println("packageSet:"); 1575 pw.increaseIndent(); 1576 for (String packageName : userState.packageSet) { 1577 pw.println(packageName); 1578 } 1579 pw.decreaseIndent(); 1580 1581 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1582 pw.increaseIndent(); 1583 for (Map.Entry<IBinder, ClientState> entry : 1584 userState.clientStateMap.entrySet()) { 1585 ClientState client = entry.getValue(); 1586 pw.println(entry.getKey() + ": " + client); 1587 1588 pw.increaseIndent(); 1589 1590 pw.println("mSessionTokens:"); 1591 pw.increaseIndent(); 1592 for (IBinder token : client.mSessionTokens) { 1593 pw.println("" + token); 1594 } 1595 pw.decreaseIndent(); 1596 1597 pw.println("mClientTokens: " + client.mClientToken); 1598 pw.println("mUserId: " + client.mUserId); 1599 1600 pw.decreaseIndent(); 1601 } 1602 pw.decreaseIndent(); 1603 1604 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1605 pw.increaseIndent(); 1606 for (Map.Entry<ComponentName, ServiceState> entry : 1607 userState.serviceStateMap.entrySet()) { 1608 ServiceState service = entry.getValue(); 1609 pw.println(entry.getKey() + ": " + service); 1610 1611 pw.increaseIndent(); 1612 1613 pw.println("mClientTokens:"); 1614 pw.increaseIndent(); 1615 for (IBinder token : service.mClientTokens) { 1616 pw.println("" + token); 1617 } 1618 pw.decreaseIndent(); 1619 1620 pw.println("mSessionTokens:"); 1621 pw.increaseIndent(); 1622 for (IBinder token : service.mSessionTokens) { 1623 pw.println("" + token); 1624 } 1625 pw.decreaseIndent(); 1626 1627 pw.println("mService: " + service.mService); 1628 pw.println("mCallback: " + service.mCallback); 1629 pw.println("mBound: " + service.mBound); 1630 pw.println("mReconnecting: " + service.mReconnecting); 1631 1632 pw.decreaseIndent(); 1633 } 1634 pw.decreaseIndent(); 1635 1636 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1637 pw.increaseIndent(); 1638 for (Map.Entry<IBinder, SessionState> entry : 1639 userState.sessionStateMap.entrySet()) { 1640 SessionState session = entry.getValue(); 1641 pw.println(entry.getKey() + ": " + session); 1642 1643 pw.increaseIndent(); 1644 pw.println("mInfo: " + session.mInfo); 1645 pw.println("mClient: " + session.mClient); 1646 pw.println("mSeq: " + session.mSeq); 1647 pw.println("mCallingUid: " + session.mCallingUid); 1648 pw.println("mUserId: " + session.mUserId); 1649 pw.println("mSessionToken: " + session.mSessionToken); 1650 pw.println("mSession: " + session.mSession); 1651 pw.println("mLogUri: " + session.mLogUri); 1652 pw.println("mHardwareSessionToken: " + session.mHardwareSessionToken); 1653 pw.decreaseIndent(); 1654 } 1655 pw.decreaseIndent(); 1656 1657 pw.println("callbackSet:"); 1658 pw.increaseIndent(); 1659 for (ITvInputManagerCallback callback : userState.callbackSet) { 1660 pw.println(callback.toString()); 1661 } 1662 pw.decreaseIndent(); 1663 1664 pw.println("mainSessionToken: " + userState.mainSessionToken); 1665 pw.decreaseIndent(); 1666 } 1667 } 1668 } 1669 } 1670 1671 private static final class TvInputState { 1672 // A TvInputInfo object which represents the TV input. 1673 private TvInputInfo mInfo; 1674 1675 // The state of TV input. Connected by default. 1676 private int mState = INPUT_STATE_CONNECTED; 1677 1678 @Override 1679 public String toString() { 1680 return "mInfo: " + mInfo + "; mState: " + mState; 1681 } 1682 } 1683 1684 private static final class UserState { 1685 // A mapping from the TV input id to its TvInputState. 1686 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1687 1688 // A set of all TV input packages. 1689 private final Set<String> packageSet = new HashSet<String>(); 1690 1691 // A set of all TV content rating system xml uris. 1692 private final Set<Uri> ratingSystemXmlUriSet = new HashSet<Uri>(); 1693 1694 // A mapping from the token of a client to its state. 1695 private final Map<IBinder, ClientState> clientStateMap = 1696 new HashMap<IBinder, ClientState>(); 1697 1698 // A mapping from the name of a TV input service to its state. 1699 private final Map<ComponentName, ServiceState> serviceStateMap = 1700 new HashMap<ComponentName, ServiceState>(); 1701 1702 // A mapping from the token of a TV input session to its state. 1703 private final Map<IBinder, SessionState> sessionStateMap = 1704 new HashMap<IBinder, SessionState>(); 1705 1706 // A set of callbacks. 1707 private final Set<ITvInputManagerCallback> callbackSet = 1708 new HashSet<ITvInputManagerCallback>(); 1709 1710 // The token of a "main" TV input session. 1711 private IBinder mainSessionToken = null; 1712 1713 // Persistent data store for all internal settings maintained by the TV input manager 1714 // service. 1715 private final PersistentDataStore persistentDataStore; 1716 1717 private UserState(Context context, int userId) { 1718 persistentDataStore = new PersistentDataStore(context, userId); 1719 } 1720 } 1721 1722 private final class ClientState implements IBinder.DeathRecipient { 1723 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1724 1725 private IBinder mClientToken; 1726 private final int mUserId; 1727 1728 ClientState(IBinder clientToken, int userId) { 1729 mClientToken = clientToken; 1730 mUserId = userId; 1731 } 1732 1733 public boolean isEmpty() { 1734 return mSessionTokens.isEmpty(); 1735 } 1736 1737 @Override 1738 public void binderDied() { 1739 synchronized (mLock) { 1740 UserState userState = getUserStateLocked(mUserId); 1741 // DO NOT remove the client state of clientStateMap in this method. It will be 1742 // removed in releaseSessionLocked(). 1743 ClientState clientState = userState.clientStateMap.get(mClientToken); 1744 if (clientState != null) { 1745 while (clientState.mSessionTokens.size() > 0) { 1746 releaseSessionLocked( 1747 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1748 } 1749 } 1750 mClientToken = null; 1751 } 1752 } 1753 } 1754 1755 private final class ServiceState { 1756 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1757 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1758 private final ServiceConnection mConnection; 1759 private final ComponentName mComponent; 1760 private final boolean mIsHardware; 1761 private final List<TvInputInfo> mInputList = new ArrayList<TvInputInfo>(); 1762 1763 private ITvInputService mService; 1764 private ServiceCallback mCallback; 1765 private boolean mBound; 1766 private boolean mReconnecting; 1767 1768 private ServiceState(ComponentName component, int userId) { 1769 mComponent = component; 1770 mConnection = new InputServiceConnection(component, userId); 1771 mIsHardware = hasHardwarePermission(mContext.getPackageManager(), mComponent); 1772 } 1773 } 1774 1775 private final class SessionState implements IBinder.DeathRecipient { 1776 private final TvInputInfo mInfo; 1777 private final ITvInputClient mClient; 1778 private final int mSeq; 1779 private final int mCallingUid; 1780 private final int mUserId; 1781 private final IBinder mSessionToken; 1782 private ITvInputSession mSession; 1783 private Uri mLogUri; 1784 // Not null if this session represents an external device connected to a hardware TV input. 1785 private IBinder mHardwareSessionToken; 1786 1787 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, 1788 int seq, int callingUid, int userId) { 1789 mSessionToken = sessionToken; 1790 mInfo = info; 1791 mClient = client; 1792 mSeq = seq; 1793 mCallingUid = callingUid; 1794 mUserId = userId; 1795 } 1796 1797 @Override 1798 public void binderDied() { 1799 synchronized (mLock) { 1800 mSession = null; 1801 if (mClient != null) { 1802 try { 1803 mClient.onSessionReleased(mSeq); 1804 } catch(RemoteException e) { 1805 Slog.e(TAG, "error in onSessionReleased", e); 1806 } 1807 } 1808 // If there are any other sessions based on this session, they should be released. 1809 UserState userState = getUserStateLocked(mUserId); 1810 for (SessionState sessionState : userState.sessionStateMap.values()) { 1811 if (mSession != null && mSession == sessionState.mHardwareSessionToken) { 1812 try { 1813 sessionState.mSession.release(); 1814 } catch (RemoteException e) { 1815 Slog.e(TAG, "error in release", e); 1816 } 1817 try { 1818 sessionState.mClient.onSessionReleased(sessionState.mSeq); 1819 } catch (RemoteException e) { 1820 Slog.e(TAG, "error in onSessionReleased", e); 1821 } 1822 } 1823 } 1824 removeSessionStateLocked(mSessionToken, mUserId); 1825 } 1826 } 1827 } 1828 1829 private final class InputServiceConnection implements ServiceConnection { 1830 private final ComponentName mComponent; 1831 private final int mUserId; 1832 1833 private InputServiceConnection(ComponentName component, int userId) { 1834 mComponent = component; 1835 mUserId = userId; 1836 } 1837 1838 @Override 1839 public void onServiceConnected(ComponentName component, IBinder service) { 1840 if (DEBUG) { 1841 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 1842 } 1843 synchronized (mLock) { 1844 UserState userState = getUserStateLocked(mUserId); 1845 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1846 serviceState.mService = ITvInputService.Stub.asInterface(service); 1847 1848 // Register a callback, if we need to. 1849 if (serviceState.mIsHardware && serviceState.mCallback == null) { 1850 serviceState.mCallback = new ServiceCallback(mComponent, mUserId); 1851 try { 1852 serviceState.mService.registerCallback(serviceState.mCallback); 1853 } catch (RemoteException e) { 1854 Slog.e(TAG, "error in registerCallback", e); 1855 } 1856 } 1857 1858 // And create sessions, if any. 1859 for (IBinder sessionToken : serviceState.mSessionTokens) { 1860 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1861 } 1862 1863 for (TvInputState inputState : userState.inputMap.values()) { 1864 if (inputState.mInfo.getComponent().equals(component) 1865 && inputState.mState != INPUT_STATE_DISCONNECTED) { 1866 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1867 inputState.mState, null); 1868 } 1869 } 1870 1871 if (serviceState.mIsHardware) { 1872 List<TvInputHardwareInfo> hardwareInfoList = 1873 mTvInputHardwareManager.getHardwareList(); 1874 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 1875 try { 1876 serviceState.mService.notifyHardwareAdded(hardwareInfo); 1877 } catch (RemoteException e) { 1878 Slog.e(TAG, "error in notifyHardwareAdded", e); 1879 } 1880 } 1881 1882 List<HdmiDeviceInfo> deviceInfoList = 1883 mTvInputHardwareManager.getHdmiDeviceList(); 1884 for (HdmiDeviceInfo deviceInfo : deviceInfoList) { 1885 try { 1886 serviceState.mService.notifyHdmiDeviceAdded(deviceInfo); 1887 } catch (RemoteException e) { 1888 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 1889 } 1890 } 1891 } 1892 } 1893 } 1894 1895 @Override 1896 public void onServiceDisconnected(ComponentName component) { 1897 if (DEBUG) { 1898 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 1899 } 1900 if (!mComponent.equals(component)) { 1901 throw new IllegalArgumentException("Mismatched ComponentName: " 1902 + mComponent + " (expected), " + component + " (actual)."); 1903 } 1904 synchronized (mLock) { 1905 UserState userState = getUserStateLocked(mUserId); 1906 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1907 if (serviceState != null) { 1908 serviceState.mReconnecting = true; 1909 serviceState.mBound = false; 1910 serviceState.mService = null; 1911 serviceState.mCallback = null; 1912 1913 // Send null tokens for not finishing create session events. 1914 for (IBinder sessionToken : serviceState.mSessionTokens) { 1915 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1916 if (sessionState.mSession == null) { 1917 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1918 sendSessionTokenToClientLocked(sessionState.mClient, 1919 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 1920 } 1921 } 1922 1923 for (TvInputState inputState : userState.inputMap.values()) { 1924 if (inputState.mInfo.getComponent().equals(component)) { 1925 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1926 INPUT_STATE_DISCONNECTED, null); 1927 } 1928 } 1929 updateServiceConnectionLocked(mComponent, mUserId); 1930 } 1931 } 1932 } 1933 } 1934 1935 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1936 private final ComponentName mComponent; 1937 private final int mUserId; 1938 1939 ServiceCallback(ComponentName component, int userId) { 1940 mComponent = component; 1941 mUserId = userId; 1942 } 1943 1944 private void ensureHardwarePermission() { 1945 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1946 != PackageManager.PERMISSION_GRANTED) { 1947 throw new SecurityException("The caller does not have hardware permission"); 1948 } 1949 } 1950 1951 private void ensureValidInput(TvInputInfo inputInfo) { 1952 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 1953 throw new IllegalArgumentException("Invalid TvInputInfo"); 1954 } 1955 } 1956 1957 private void addTvInputLocked(TvInputInfo inputInfo) { 1958 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 1959 serviceState.mInputList.add(inputInfo); 1960 buildTvInputListLocked(mUserId); 1961 } 1962 1963 @Override 1964 public void addHardwareTvInput(int deviceId, TvInputInfo inputInfo) { 1965 ensureHardwarePermission(); 1966 ensureValidInput(inputInfo); 1967 synchronized (mLock) { 1968 mTvInputHardwareManager.addHardwareTvInput(deviceId, inputInfo); 1969 addTvInputLocked(inputInfo); 1970 } 1971 } 1972 1973 @Override 1974 public void addHdmiTvInput(int logicalAddress, TvInputInfo inputInfo) { 1975 ensureHardwarePermission(); 1976 ensureValidInput(inputInfo); 1977 synchronized (mLock) { 1978 mTvInputHardwareManager.addHdmiTvInput(logicalAddress, inputInfo); 1979 addTvInputLocked(inputInfo); 1980 } 1981 } 1982 1983 @Override 1984 public void removeTvInput(String inputId) { 1985 ensureHardwarePermission(); 1986 synchronized (mLock) { 1987 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 1988 boolean removed = false; 1989 for (Iterator<TvInputInfo> it = serviceState.mInputList.iterator(); 1990 it.hasNext(); ) { 1991 if (it.next().getId().equals(inputId)) { 1992 it.remove(); 1993 removed = true; 1994 break; 1995 } 1996 } 1997 if (removed) { 1998 buildTvInputListLocked(mUserId); 1999 mTvInputHardwareManager.removeTvInput(inputId); 2000 } else { 2001 Slog.e(TAG, "TvInputInfo with inputId=" + inputId + " not found."); 2002 } 2003 } 2004 } 2005 } 2006 2007 private final class WatchLogHandler extends Handler { 2008 // There are only two kinds of watch events that can happen on the system: 2009 // 1. The current TV input session is tuned to a new channel. 2010 // 2. The session is released for some reason. 2011 // The former indicates the end of the previous log entry, if any, followed by the start of 2012 // a new entry. The latter indicates the end of the most recent entry for the given session. 2013 // Here the system supplies the database the smallest set of information only that is 2014 // sufficient to consolidate the log entries while minimizing database operations in the 2015 // system service. 2016 private static final int MSG_LOG_WATCH_START = 1; 2017 private static final int MSG_LOG_WATCH_END = 2; 2018 2019 public WatchLogHandler(Looper looper) { 2020 super(looper); 2021 } 2022 2023 @Override 2024 public void handleMessage(Message msg) { 2025 switch (msg.what) { 2026 case MSG_LOG_WATCH_START: { 2027 SomeArgs args = (SomeArgs) msg.obj; 2028 String packageName = (String) args.arg1; 2029 long watchStartTime = (long) args.arg2; 2030 long channelId = (long) args.arg3; 2031 Bundle tuneParams = (Bundle) args.arg4; 2032 IBinder sessionToken = (IBinder) args.arg5; 2033 2034 ContentValues values = new ContentValues(); 2035 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 2036 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2037 watchStartTime); 2038 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2039 if (tuneParams != null) { 2040 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_TUNE_PARAMS, 2041 encodeTuneParams(tuneParams)); 2042 } 2043 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2044 sessionToken.toString()); 2045 2046 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2047 args.recycle(); 2048 return; 2049 } 2050 case MSG_LOG_WATCH_END: { 2051 SomeArgs args = (SomeArgs) msg.obj; 2052 IBinder sessionToken = (IBinder) args.arg1; 2053 long watchEndTime = (long) args.arg2; 2054 2055 ContentValues values = new ContentValues(); 2056 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2057 watchEndTime); 2058 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2059 sessionToken.toString()); 2060 2061 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2062 args.recycle(); 2063 return; 2064 } 2065 default: { 2066 Slog.w(TAG, "Unhandled message code: " + msg.what); 2067 return; 2068 } 2069 } 2070 } 2071 2072 private String encodeTuneParams(Bundle tuneParams) { 2073 StringBuilder builder = new StringBuilder(); 2074 Set<String> keySet = tuneParams.keySet(); 2075 Iterator<String> it = keySet.iterator(); 2076 while (it.hasNext()) { 2077 String key = it.next(); 2078 Object value = tuneParams.get(key); 2079 if (value == null) { 2080 continue; 2081 } 2082 builder.append(replaceEscapeCharacters(key)); 2083 builder.append("="); 2084 builder.append(replaceEscapeCharacters(value.toString())); 2085 if (it.hasNext()) { 2086 builder.append(", "); 2087 } 2088 } 2089 return builder.toString(); 2090 } 2091 2092 private String replaceEscapeCharacters(String src) { 2093 final char ESCAPE_CHARACTER = '%'; 2094 final String ENCODING_TARGET_CHARACTERS = "%=,"; 2095 StringBuilder builder = new StringBuilder(); 2096 for (char ch : src.toCharArray()) { 2097 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 2098 builder.append(ESCAPE_CHARACTER); 2099 } 2100 builder.append(ch); 2101 } 2102 return builder.toString(); 2103 } 2104 } 2105 2106 final class HardwareListener implements TvInputHardwareManager.Listener { 2107 @Override 2108 public void onStateChanged(String inputId, int state) { 2109 synchronized (mLock) { 2110 setStateLocked(inputId, state, mCurrentUserId); 2111 } 2112 } 2113 2114 @Override 2115 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2116 synchronized (mLock) { 2117 UserState userState = getUserStateLocked(mCurrentUserId); 2118 // Broadcast the event to all hardware inputs. 2119 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2120 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2121 try { 2122 serviceState.mService.notifyHardwareAdded(info); 2123 } catch (RemoteException e) { 2124 Slog.e(TAG, "error in notifyHardwareAdded", e); 2125 } 2126 } 2127 } 2128 } 2129 2130 @Override 2131 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2132 synchronized (mLock) { 2133 UserState userState = getUserStateLocked(mCurrentUserId); 2134 // Broadcast the event to all hardware inputs. 2135 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2136 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2137 try { 2138 serviceState.mService.notifyHardwareRemoved(info); 2139 } catch (RemoteException e) { 2140 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2141 } 2142 } 2143 } 2144 } 2145 2146 @Override 2147 public void onHdmiDeviceAdded(HdmiDeviceInfo deviceInfo) { 2148 synchronized (mLock) { 2149 UserState userState = getUserStateLocked(mCurrentUserId); 2150 // Broadcast the event to all hardware inputs. 2151 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2152 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2153 try { 2154 serviceState.mService.notifyHdmiDeviceAdded(deviceInfo); 2155 } catch (RemoteException e) { 2156 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2157 } 2158 } 2159 } 2160 } 2161 2162 @Override 2163 public void onHdmiDeviceRemoved(HdmiDeviceInfo deviceInfo) { 2164 synchronized (mLock) { 2165 UserState userState = getUserStateLocked(mCurrentUserId); 2166 // Broadcast the event to all hardware inputs. 2167 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2168 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2169 try { 2170 serviceState.mService.notifyHdmiDeviceRemoved(deviceInfo); 2171 } catch (RemoteException e) { 2172 Slog.e(TAG, "error in notifyHdmiDeviceRemoved", e); 2173 } 2174 } 2175 } 2176 } 2177 2178 @Override 2179 public void onHdmiDeviceUpdated(HdmiDeviceInfo deviceInfo) { 2180 // TODO: implement here. 2181 } 2182 } 2183} 2184