TvInputManagerService.java revision 61f4fbd2e8436a1ecd478c2a1f516d064a24d43b
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.content.res.Resources; 39import android.database.Cursor; 40import android.graphics.Rect; 41import android.hardware.hdmi.HdmiDeviceInfo; 42import android.media.tv.ITvInputClient; 43import android.media.tv.ITvInputHardware; 44import android.media.tv.ITvInputHardwareCallback; 45import android.media.tv.ITvInputManager; 46import android.media.tv.ITvInputManagerCallback; 47import android.media.tv.ITvInputService; 48import android.media.tv.ITvInputServiceCallback; 49import android.media.tv.ITvInputSession; 50import android.media.tv.ITvInputSessionCallback; 51import android.media.tv.TvContentRating; 52import android.media.tv.TvContract; 53import android.media.tv.TvInputHardwareInfo; 54import android.media.tv.TvInputInfo; 55import android.media.tv.TvInputService; 56import android.media.tv.TvStreamConfig; 57import android.media.tv.TvTrackInfo; 58import android.net.Uri; 59import android.os.Binder; 60import android.os.Bundle; 61import android.os.Handler; 62import android.os.IBinder; 63import android.os.Looper; 64import android.os.Message; 65import android.os.Process; 66import android.os.RemoteException; 67import android.os.UserHandle; 68import android.util.Slog; 69import android.util.SparseArray; 70import android.view.InputChannel; 71import android.view.Surface; 72 73import com.android.internal.content.PackageMonitor; 74import com.android.internal.os.SomeArgs; 75import com.android.internal.util.IndentingPrintWriter; 76import com.android.server.IoThread; 77import com.android.server.SystemService; 78 79import org.xmlpull.v1.XmlPullParserException; 80 81import java.io.FileDescriptor; 82import java.io.IOException; 83import java.io.PrintWriter; 84import java.util.ArrayList; 85import java.util.HashMap; 86import java.util.HashSet; 87import java.util.Iterator; 88import java.util.List; 89import java.util.Map; 90import java.util.Set; 91 92/** This class provides a system service that manages television inputs. */ 93public final class TvInputManagerService extends SystemService { 94 // STOPSHIP: Turn debugging off. 95 private static final boolean DEBUG = true; 96 private static final String TAG = "TvInputManagerService"; 97 98 private final Context mContext; 99 private final TvInputHardwareManager mTvInputHardwareManager; 100 101 private final ContentResolver mContentResolver; 102 103 // A global lock. 104 private final Object mLock = new Object(); 105 106 // ID of the current user. 107 private int mCurrentUserId = UserHandle.USER_OWNER; 108 109 // A map from user id to UserState. 110 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 111 112 private final Handler mLogHandler; 113 114 public TvInputManagerService(Context context) { 115 super(context); 116 117 mContext = context; 118 mContentResolver = context.getContentResolver(); 119 mLogHandler = new LogHandler(IoThread.get().getLooper()); 120 121 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 122 123 synchronized (mLock) { 124 mUserStates.put(mCurrentUserId, new UserState(mContext, mCurrentUserId)); 125 } 126 } 127 128 @Override 129 public void onStart() { 130 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 131 } 132 133 @Override 134 public void onBootPhase(int phase) { 135 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 136 registerBroadcastReceivers(); 137 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 138 synchronized (mLock) { 139 buildTvInputListLocked(mCurrentUserId); 140 } 141 } 142 mTvInputHardwareManager.onBootPhase(phase); 143 } 144 145 private void registerBroadcastReceivers() { 146 PackageMonitor monitor = new PackageMonitor() { 147 @Override 148 public void onSomePackagesChanged() { 149 synchronized (mLock) { 150 buildTvInputListLocked(mCurrentUserId); 151 } 152 } 153 154 @Override 155 public void onPackageRemoved(String packageName, int uid) { 156 synchronized (mLock) { 157 UserState userState = getUserStateLocked(mCurrentUserId); 158 if (!userState.packageSet.contains(packageName)) { 159 // Not a TV input package. 160 return; 161 } 162 } 163 164 ArrayList<ContentProviderOperation> operations = 165 new ArrayList<ContentProviderOperation>(); 166 167 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 168 String[] selectionArgs = { packageName }; 169 170 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 171 .withSelection(selection, selectionArgs).build()); 172 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 173 .withSelection(selection, selectionArgs).build()); 174 operations.add(ContentProviderOperation 175 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 176 .withSelection(selection, selectionArgs).build()); 177 178 ContentProviderResult[] results = null; 179 try { 180 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 181 } catch (RemoteException | OperationApplicationException e) { 182 Slog.e(TAG, "error in applyBatch" + e); 183 } 184 185 if (DEBUG) { 186 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 187 + ")"); 188 Slog.d(TAG, "results=" + results); 189 } 190 } 191 }; 192 monitor.register(mContext, null, UserHandle.ALL, true); 193 194 IntentFilter intentFilter = new IntentFilter(); 195 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 196 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 197 mContext.registerReceiverAsUser(new BroadcastReceiver() { 198 @Override 199 public void onReceive(Context context, Intent intent) { 200 String action = intent.getAction(); 201 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 202 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 203 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 204 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 205 } 206 } 207 }, UserHandle.ALL, intentFilter, null, null); 208 } 209 210 private static boolean hasHardwarePermission(PackageManager pm, ComponentName component) { 211 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 212 component.getPackageName()) == PackageManager.PERMISSION_GRANTED; 213 } 214 215 private void buildTvInputListLocked(int userId) { 216 UserState userState = getUserStateLocked(userId); 217 218 Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 219 userState.packageSet.clear(); 220 221 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 222 PackageManager pm = mContext.getPackageManager(); 223 List<ResolveInfo> services = pm.queryIntentServices( 224 new Intent(TvInputService.SERVICE_INTERFACE), 225 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 226 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 227 for (ResolveInfo ri : services) { 228 ServiceInfo si = ri.serviceInfo; 229 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 230 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 231 + android.Manifest.permission.BIND_TV_INPUT); 232 continue; 233 } 234 try { 235 inputList.clear(); 236 ComponentName component = new ComponentName(si.packageName, si.name); 237 if (hasHardwarePermission(pm, component)) { 238 ServiceState serviceState = userState.serviceStateMap.get(component); 239 if (serviceState == null) { 240 // We see this hardware TV input service for the first time; we need to 241 // prepare the ServiceState object so that we can connect to the service and 242 // let it add TvInputInfo objects to mInputList if there's any. 243 serviceState = new ServiceState(component, userId); 244 userState.serviceStateMap.put(component, serviceState); 245 } else { 246 inputList.addAll(serviceState.mInputList); 247 } 248 } else { 249 inputList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 250 } 251 252 for (TvInputInfo info : inputList) { 253 if (DEBUG) Slog.d(TAG, "add " + info.getId()); 254 TvInputState state = userState.inputMap.get(info.getId()); 255 if (state == null) { 256 state = new TvInputState(); 257 } 258 state.mInfo = info; 259 inputMap.put(info.getId(), state); 260 } 261 262 // Reconnect the service if existing input is updated. 263 updateServiceConnectionLocked(component, userId); 264 265 userState.packageSet.add(si.packageName); 266 } catch (IOException | XmlPullParserException e) { 267 Slog.e(TAG, "Can't load TV input " + si.name, e); 268 } 269 } 270 271 for (String inputId : inputMap.keySet()) { 272 if (!userState.inputMap.containsKey(inputId)) { 273 notifyInputAddedLocked(userState, inputId); 274 } 275 } 276 277 for (String inputId : userState.inputMap.keySet()) { 278 if (!inputMap.containsKey(inputId)) { 279 notifyInputRemovedLocked(userState, inputId); 280 } 281 } 282 283 userState.inputMap.clear(); 284 userState.inputMap = inputMap; 285 286 Resources r = Resources.getSystem(); 287 userState.ratingSystemXmlUriSet.clear(); 288 userState.ratingSystemXmlUriSet.add(TvContentRating.SYSTEM_CONTENT_RATING_SYSTEM_XML); 289 for (TvInputState state : userState.inputMap.values()) { 290 Uri ratingSystemXmlUri = state.mInfo.getRatingSystemXmlUri(); 291 if (ratingSystemXmlUri != null) { 292 // TODO: need to check the validation of xml format and the duplication of rating 293 // systems. 294 userState.ratingSystemXmlUriSet.add(state.mInfo.getRatingSystemXmlUri()); 295 } 296 } 297 } 298 299 private void switchUser(int userId) { 300 synchronized (mLock) { 301 if (mCurrentUserId == userId) { 302 return; 303 } 304 // final int oldUserId = mCurrentUserId; 305 // TODO: Release services and sessions in the old user state, if needed. 306 mCurrentUserId = userId; 307 308 UserState userState = mUserStates.get(userId); 309 if (userState == null) { 310 userState = new UserState(mContext, userId); 311 } 312 mUserStates.put(userId, userState); 313 buildTvInputListLocked(userId); 314 } 315 } 316 317 private void removeUser(int userId) { 318 synchronized (mLock) { 319 UserState userState = mUserStates.get(userId); 320 if (userState == null) { 321 return; 322 } 323 // Release created sessions. 324 for (SessionState state : userState.sessionStateMap.values()) { 325 if (state.mSession != null) { 326 try { 327 state.mSession.release(); 328 } catch (RemoteException e) { 329 Slog.e(TAG, "error in release", e); 330 } 331 } 332 } 333 userState.sessionStateMap.clear(); 334 335 // Unregister all callbacks and unbind all services. 336 for (ServiceState serviceState : userState.serviceStateMap.values()) { 337 if (serviceState.mCallback != null) { 338 try { 339 serviceState.mService.unregisterCallback(serviceState.mCallback); 340 } catch (RemoteException e) { 341 Slog.e(TAG, "error in unregisterCallback", e); 342 } 343 } 344 serviceState.mClientTokens.clear(); 345 mContext.unbindService(serviceState.mConnection); 346 } 347 userState.serviceStateMap.clear(); 348 349 userState.clientStateMap.clear(); 350 351 mUserStates.remove(userId); 352 } 353 } 354 355 private UserState getUserStateLocked(int userId) { 356 UserState userState = mUserStates.get(userId); 357 if (userState == null) { 358 throw new IllegalStateException("User state not found for user ID " + userId); 359 } 360 return userState; 361 } 362 363 private ServiceState getServiceStateLocked(ComponentName component, int userId) { 364 UserState userState = getUserStateLocked(userId); 365 ServiceState serviceState = userState.serviceStateMap.get(component); 366 if (serviceState == null) { 367 throw new IllegalStateException("Service state not found for " + component + " (userId=" 368 + userId + ")"); 369 } 370 return serviceState; 371 } 372 373 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 374 UserState userState = getUserStateLocked(userId); 375 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 376 if (sessionState == null) { 377 throw new IllegalArgumentException("Session state not found for token " + sessionToken); 378 } 379 // Only the application that requested this session or the system can access it. 380 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.mCallingUid) { 381 throw new SecurityException("Illegal access to the session with token " + sessionToken 382 + " from uid " + callingUid); 383 } 384 return sessionState; 385 } 386 387 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 388 return getSessionLocked(getSessionStateLocked(sessionToken, callingUid, userId)); 389 } 390 391 private ITvInputSession getSessionLocked(SessionState sessionState) { 392 ITvInputSession session = sessionState.mSession; 393 if (session == null) { 394 throw new IllegalStateException("Session not yet created for token " 395 + sessionState.mSessionToken); 396 } 397 return session; 398 } 399 400 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 401 String methodName) { 402 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 403 false, methodName, null); 404 } 405 406 private static boolean shouldMaintainConnection(ServiceState serviceState) { 407 return !serviceState.mClientTokens.isEmpty() 408 || !serviceState.mSessionTokens.isEmpty() 409 || serviceState.mIsHardware; 410 // TODO: Find a way to maintain connection only when necessary. 411 } 412 413 private void updateServiceConnectionLocked(ComponentName component, int userId) { 414 UserState userState = getUserStateLocked(userId); 415 ServiceState serviceState = userState.serviceStateMap.get(component); 416 if (serviceState == null) { 417 return; 418 } 419 if (serviceState.mReconnecting) { 420 if (!serviceState.mSessionTokens.isEmpty()) { 421 // wait until all the sessions are removed. 422 return; 423 } 424 serviceState.mReconnecting = false; 425 } 426 boolean maintainConnection = shouldMaintainConnection(serviceState); 427 if (serviceState.mService == null && maintainConnection && userId == mCurrentUserId) { 428 // This means that the service is not yet connected but its state indicates that we 429 // have pending requests. Then, connect the service. 430 if (serviceState.mBound) { 431 // We have already bound to the service so we don't try to bind again until after we 432 // unbind later on. 433 return; 434 } 435 if (DEBUG) { 436 Slog.d(TAG, "bindServiceAsUser(service=" + component + ", userId=" + userId + ")"); 437 } 438 439 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(component); 440 // Binding service may fail if the service is updating. 441 // In that case, the connection will be revived in buildTvInputListLocked called by 442 // onSomePackagesChanged. 443 serviceState.mBound = mContext.bindServiceAsUser( 444 i, serviceState.mConnection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 445 } else if (serviceState.mService != null && !maintainConnection) { 446 // This means that the service is already connected but its state indicates that we have 447 // nothing to do with it. Then, disconnect the service. 448 if (DEBUG) { 449 Slog.d(TAG, "unbindService(service=" + component + ")"); 450 } 451 mContext.unbindService(serviceState.mConnection); 452 userState.serviceStateMap.remove(component); 453 } 454 } 455 456 private ClientState createClientStateLocked(IBinder clientToken, int userId) { 457 UserState userState = getUserStateLocked(userId); 458 ClientState clientState = new ClientState(clientToken, userId); 459 try { 460 clientToken.linkToDeath(clientState, 0); 461 } catch (RemoteException e) { 462 Slog.e(TAG, "Client is already died."); 463 } 464 userState.clientStateMap.put(clientToken, clientState); 465 return clientState; 466 } 467 468 private void createSessionInternalLocked(ITvInputService service, final IBinder sessionToken, 469 final int userId) { 470 final UserState userState = getUserStateLocked(userId); 471 final SessionState sessionState = userState.sessionStateMap.get(sessionToken); 472 if (DEBUG) { 473 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.mInfo.getId() + ")"); 474 } 475 476 final InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 477 478 // Set up a callback to send the session token. 479 ITvInputSessionCallback callback = new ITvInputSessionCallback.Stub() { 480 @Override 481 public void onSessionCreated(ITvInputSession session, IBinder harewareSessionToken) { 482 if (DEBUG) { 483 Slog.d(TAG, "onSessionCreated(inputId=" + sessionState.mInfo.getId() + ")"); 484 } 485 synchronized (mLock) { 486 sessionState.mSession = session; 487 sessionState.mHardwareSessionToken = harewareSessionToken; 488 if (session == null) { 489 removeSessionStateLocked(sessionToken, userId); 490 sendSessionTokenToClientLocked(sessionState.mClient, 491 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 492 } else { 493 try { 494 session.asBinder().linkToDeath(sessionState, 0); 495 } catch (RemoteException e) { 496 Slog.e(TAG, "Session is already died."); 497 } 498 499 IBinder clientToken = sessionState.mClient.asBinder(); 500 ClientState clientState = userState.clientStateMap.get(clientToken); 501 if (clientState == null) { 502 clientState = createClientStateLocked(clientToken, userId); 503 } 504 clientState.mSessionTokens.add(sessionState.mSessionToken); 505 506 sendSessionTokenToClientLocked(sessionState.mClient, 507 sessionState.mInfo.getId(), sessionToken, channels[0], 508 sessionState.mSeq); 509 } 510 channels[0].dispose(); 511 } 512 } 513 514 @Override 515 public void onChannelRetuned(Uri channelUri) { 516 synchronized (mLock) { 517 if (DEBUG) { 518 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 519 } 520 if (sessionState.mSession == null || sessionState.mClient == null) { 521 return; 522 } 523 try { 524 // TODO: Consider adding this channel change in the watch log. When we do 525 // that, how we can protect the watch log from malicious tv inputs should 526 // be addressed. e.g. add a field which represents where the channel change 527 // originated from. 528 sessionState.mClient.onChannelRetuned(channelUri, sessionState.mSeq); 529 } catch (RemoteException e) { 530 Slog.e(TAG, "error in onChannelRetuned"); 531 } 532 } 533 } 534 535 @Override 536 public void onTracksChanged(List<TvTrackInfo> tracks) { 537 synchronized (mLock) { 538 if (DEBUG) { 539 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 540 } 541 if (sessionState.mSession == null || sessionState.mClient == null) { 542 return; 543 } 544 try { 545 sessionState.mClient.onTracksChanged(tracks, sessionState.mSeq); 546 } catch (RemoteException e) { 547 Slog.e(TAG, "error in onTracksChanged"); 548 } 549 } 550 } 551 552 @Override 553 public void onTrackSelected(int type, String trackId) { 554 synchronized (mLock) { 555 if (DEBUG) { 556 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 557 } 558 if (sessionState.mSession == null || sessionState.mClient == null) { 559 return; 560 } 561 try { 562 sessionState.mClient.onTrackSelected(type, trackId, sessionState.mSeq); 563 } catch (RemoteException e) { 564 Slog.e(TAG, "error in onTrackSelected"); 565 } 566 } 567 } 568 569 @Override 570 public void onVideoAvailable() { 571 synchronized (mLock) { 572 if (DEBUG) { 573 Slog.d(TAG, "onVideoAvailable()"); 574 } 575 if (sessionState.mSession == null || sessionState.mClient == null) { 576 return; 577 } 578 try { 579 sessionState.mClient.onVideoAvailable(sessionState.mSeq); 580 } catch (RemoteException e) { 581 Slog.e(TAG, "error in onVideoAvailable"); 582 } 583 } 584 } 585 586 @Override 587 public void onVideoUnavailable(int reason) { 588 synchronized (mLock) { 589 if (DEBUG) { 590 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 591 } 592 if (sessionState.mSession == null || sessionState.mClient == null) { 593 return; 594 } 595 try { 596 sessionState.mClient.onVideoUnavailable(reason, sessionState.mSeq); 597 } catch (RemoteException e) { 598 Slog.e(TAG, "error in onVideoUnavailable"); 599 } 600 } 601 } 602 603 @Override 604 public void onContentAllowed() { 605 synchronized (mLock) { 606 if (DEBUG) { 607 Slog.d(TAG, "onContentAllowed()"); 608 } 609 if (sessionState.mSession == null || sessionState.mClient == null) { 610 return; 611 } 612 try { 613 sessionState.mClient.onContentAllowed(sessionState.mSeq); 614 } catch (RemoteException e) { 615 Slog.e(TAG, "error in onContentAllowed"); 616 } 617 } 618 } 619 620 @Override 621 public void onContentBlocked(String rating) { 622 synchronized (mLock) { 623 if (DEBUG) { 624 Slog.d(TAG, "onContentBlocked()"); 625 } 626 if (sessionState.mSession == null || sessionState.mClient == null) { 627 return; 628 } 629 try { 630 sessionState.mClient.onContentBlocked(rating, sessionState.mSeq); 631 } catch (RemoteException e) { 632 Slog.e(TAG, "error in onContentBlocked"); 633 } 634 } 635 } 636 637 @Override 638 public void onLayoutSurface(int left, int top, int right, int bottom) { 639 synchronized (mLock) { 640 if (DEBUG) { 641 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 642 + ", right=" + right + ", bottom=" + bottom + ",)"); 643 } 644 if (sessionState.mSession == null || sessionState.mClient == null) { 645 return; 646 } 647 try { 648 sessionState.mClient.onLayoutSurface(left, top, right, bottom, 649 sessionState.mSeq); 650 } catch (RemoteException e) { 651 Slog.e(TAG, "error in onLayoutSurface"); 652 } 653 } 654 } 655 656 @Override 657 public void onSessionEvent(String eventType, Bundle eventArgs) { 658 synchronized (mLock) { 659 if (DEBUG) { 660 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 661 } 662 if (sessionState.mSession == null || sessionState.mClient == null) { 663 return; 664 } 665 try { 666 sessionState.mClient.onSessionEvent(eventType, eventArgs, 667 sessionState.mSeq); 668 } catch (RemoteException e) { 669 Slog.e(TAG, "error in onSessionEvent"); 670 } 671 } 672 } 673 }; 674 675 // Create a session. When failed, send a null token immediately. 676 try { 677 service.createSession(channels[1], callback, sessionState.mInfo.getId()); 678 } catch (RemoteException e) { 679 Slog.e(TAG, "error in createSession", e); 680 removeSessionStateLocked(sessionToken, userId); 681 sendSessionTokenToClientLocked(sessionState.mClient, sessionState.mInfo.getId(), null, 682 null, sessionState.mSeq); 683 } 684 channels[1].dispose(); 685 } 686 687 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 688 IBinder sessionToken, InputChannel channel, int seq) { 689 try { 690 client.onSessionCreated(inputId, sessionToken, channel, seq); 691 } catch (RemoteException exception) { 692 Slog.e(TAG, "error in onSessionCreated", exception); 693 } 694 } 695 696 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 697 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 698 if (sessionState.mSession != null) { 699 try { 700 sessionState.mSession.release(); 701 } catch (RemoteException e) { 702 Slog.w(TAG, "session is already disapeared", e); 703 } 704 sessionState.mSession = null; 705 } 706 removeSessionStateLocked(sessionToken, userId); 707 } 708 709 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 710 UserState userState = getUserStateLocked(userId); 711 if (sessionToken == userState.mainSessionToken) { 712 userState.mainSessionToken = null; 713 } 714 715 // Remove the session state from the global session state map of the current user. 716 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 717 718 // Close the open log entry, if any. 719 if (sessionState.mLogUri != null) { 720 SomeArgs args = SomeArgs.obtain(); 721 args.arg1 = sessionState.mLogUri; 722 args.arg2 = System.currentTimeMillis(); 723 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args).sendToTarget(); 724 } 725 726 // Also remove the session token from the session token list of the current client and 727 // service. 728 ClientState clientState = userState.clientStateMap.get(sessionState.mClient.asBinder()); 729 if (clientState != null) { 730 clientState.mSessionTokens.remove(sessionToken); 731 if (clientState.isEmpty()) { 732 userState.clientStateMap.remove(sessionState.mClient.asBinder()); 733 } 734 } 735 736 TvInputInfo info = sessionState.mInfo; 737 if (info != null) { 738 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 739 if (serviceState != null) { 740 serviceState.mSessionTokens.remove(sessionToken); 741 } 742 } 743 updateServiceConnectionLocked(sessionState.mInfo.getComponent(), userId); 744 } 745 746 private void notifyInputAddedLocked(UserState userState, String inputId) { 747 if (DEBUG) { 748 Slog.d(TAG, "notifyInputAdded: inputId = " + inputId); 749 } 750 for (ITvInputManagerCallback callback : userState.callbackSet) { 751 try { 752 callback.onInputAdded(inputId); 753 } catch (RemoteException e) { 754 Slog.e(TAG, "Failed to report added input to callback."); 755 } 756 } 757 } 758 759 private void notifyInputRemovedLocked(UserState userState, String inputId) { 760 if (DEBUG) { 761 Slog.d(TAG, "notifyInputRemovedLocked: inputId = " + inputId); 762 } 763 for (ITvInputManagerCallback callback : userState.callbackSet) { 764 try { 765 callback.onInputRemoved(inputId); 766 } catch (RemoteException e) { 767 Slog.e(TAG, "Failed to report removed input to callback."); 768 } 769 } 770 } 771 772 private void notifyInputStateChangedLocked(UserState userState, String inputId, 773 int state, ITvInputManagerCallback targetCallback) { 774 if (DEBUG) { 775 Slog.d(TAG, "notifyInputStateChangedLocked: inputId = " + inputId 776 + "; state = " + state); 777 } 778 if (targetCallback == null) { 779 for (ITvInputManagerCallback callback : userState.callbackSet) { 780 try { 781 callback.onInputStateChanged(inputId, state); 782 } catch (RemoteException e) { 783 Slog.e(TAG, "Failed to report state change to callback."); 784 } 785 } 786 } else { 787 try { 788 targetCallback.onInputStateChanged(inputId, state); 789 } catch (RemoteException e) { 790 Slog.e(TAG, "Failed to report state change to callback."); 791 } 792 } 793 } 794 795 private void setStateLocked(String inputId, int state, int userId) { 796 UserState userState = getUserStateLocked(userId); 797 TvInputState inputState = userState.inputMap.get(inputId); 798 ServiceState serviceState = userState.serviceStateMap.get(inputState.mInfo.getComponent()); 799 int oldState = inputState.mState; 800 inputState.mState = state; 801 if (serviceState != null && serviceState.mService == null 802 && shouldMaintainConnection(serviceState)) { 803 // We don't notify state change while reconnecting. It should remain disconnected. 804 return; 805 } 806 if (oldState != state) { 807 notifyInputStateChangedLocked(userState, inputId, state, null); 808 } 809 } 810 811 private final class BinderService extends ITvInputManager.Stub { 812 @Override 813 public List<TvInputInfo> getTvInputList(int userId) { 814 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 815 Binder.getCallingUid(), userId, "getTvInputList"); 816 final long identity = Binder.clearCallingIdentity(); 817 try { 818 synchronized (mLock) { 819 UserState userState = getUserStateLocked(resolvedUserId); 820 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 821 for (TvInputState state : userState.inputMap.values()) { 822 inputList.add(state.mInfo); 823 } 824 return inputList; 825 } 826 } finally { 827 Binder.restoreCallingIdentity(identity); 828 } 829 } 830 831 @Override 832 public TvInputInfo getTvInputInfo(String inputId, int userId) { 833 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 834 Binder.getCallingUid(), userId, "getTvInputInfo"); 835 final long identity = Binder.clearCallingIdentity(); 836 try { 837 synchronized (mLock) { 838 UserState userState = getUserStateLocked(resolvedUserId); 839 TvInputState state = userState.inputMap.get(inputId); 840 return state == null ? null : state.mInfo; 841 } 842 } finally { 843 Binder.restoreCallingIdentity(identity); 844 } 845 } 846 847 @Override 848 public List<Uri> getTvContentRatingSystemXmls(int userId) { 849 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 850 Binder.getCallingUid(), userId, "getTvContentRatingSystemXmls"); 851 final long identity = Binder.clearCallingIdentity(); 852 try { 853 synchronized (mLock) { 854 UserState userState = getUserStateLocked(resolvedUserId); 855 List<Uri> ratingSystemXmlUriList = new ArrayList<Uri>(); 856 ratingSystemXmlUriList.addAll(userState.ratingSystemXmlUriSet); 857 return ratingSystemXmlUriList; 858 } 859 } finally { 860 Binder.restoreCallingIdentity(identity); 861 } 862 } 863 864 @Override 865 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 866 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 867 Binder.getCallingUid(), userId, "registerCallback"); 868 final long identity = Binder.clearCallingIdentity(); 869 try { 870 synchronized (mLock) { 871 UserState userState = getUserStateLocked(resolvedUserId); 872 userState.callbackSet.add(callback); 873 for (TvInputState state : userState.inputMap.values()) { 874 notifyInputStateChangedLocked(userState, state.mInfo.getId(), 875 state.mState, callback); 876 } 877 } 878 } finally { 879 Binder.restoreCallingIdentity(identity); 880 } 881 } 882 883 @Override 884 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 885 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 886 Binder.getCallingUid(), userId, "unregisterCallback"); 887 final long identity = Binder.clearCallingIdentity(); 888 try { 889 synchronized (mLock) { 890 UserState userState = getUserStateLocked(resolvedUserId); 891 userState.callbackSet.remove(callback); 892 } 893 } finally { 894 Binder.restoreCallingIdentity(identity); 895 } 896 } 897 898 @Override 899 public boolean isParentalControlsEnabled(int userId) { 900 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 901 Binder.getCallingUid(), userId, "isParentalControlsEnabled"); 902 final long identity = Binder.clearCallingIdentity(); 903 try { 904 synchronized (mLock) { 905 UserState userState = getUserStateLocked(resolvedUserId); 906 return userState.persistentDataStore.isParentalControlsEnabled(); 907 } 908 } finally { 909 Binder.restoreCallingIdentity(identity); 910 } 911 } 912 913 @Override 914 public void setParentalControlsEnabled(boolean enabled, int userId) { 915 ensureParentalControlsPermission(); 916 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 917 Binder.getCallingUid(), userId, "setParentalControlsEnabled"); 918 final long identity = Binder.clearCallingIdentity(); 919 try { 920 synchronized (mLock) { 921 UserState userState = getUserStateLocked(resolvedUserId); 922 userState.persistentDataStore.setParentalControlsEnabled(enabled); 923 } 924 } finally { 925 Binder.restoreCallingIdentity(identity); 926 } 927 } 928 929 @Override 930 public boolean isRatingBlocked(String rating, int userId) { 931 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 932 Binder.getCallingUid(), userId, "isRatingBlocked"); 933 final long identity = Binder.clearCallingIdentity(); 934 try { 935 synchronized (mLock) { 936 UserState userState = getUserStateLocked(resolvedUserId); 937 return userState.persistentDataStore.isRatingBlocked( 938 TvContentRating.unflattenFromString(rating)); 939 } 940 } finally { 941 Binder.restoreCallingIdentity(identity); 942 } 943 } 944 945 @Override 946 public List<String> getBlockedRatings(int userId) { 947 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 948 Binder.getCallingUid(), userId, "getBlockedRatings"); 949 final long identity = Binder.clearCallingIdentity(); 950 try { 951 synchronized (mLock) { 952 UserState userState = getUserStateLocked(resolvedUserId); 953 List<String> ratings = new ArrayList<String>(); 954 for (TvContentRating rating 955 : userState.persistentDataStore.getBlockedRatings()) { 956 ratings.add(rating.flattenToString()); 957 } 958 return ratings; 959 } 960 } finally { 961 Binder.restoreCallingIdentity(identity); 962 } 963 } 964 965 @Override 966 public void addBlockedRating(String rating, int userId) { 967 ensureParentalControlsPermission(); 968 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 969 Binder.getCallingUid(), userId, "addBlockedRating"); 970 final long identity = Binder.clearCallingIdentity(); 971 try { 972 synchronized (mLock) { 973 UserState userState = getUserStateLocked(resolvedUserId); 974 userState.persistentDataStore.addBlockedRating( 975 TvContentRating.unflattenFromString(rating)); 976 } 977 } finally { 978 Binder.restoreCallingIdentity(identity); 979 } 980 } 981 982 @Override 983 public void removeBlockedRating(String rating, int userId) { 984 ensureParentalControlsPermission(); 985 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 986 Binder.getCallingUid(), userId, "removeBlockedRating"); 987 final long identity = Binder.clearCallingIdentity(); 988 try { 989 synchronized (mLock) { 990 UserState userState = getUserStateLocked(resolvedUserId); 991 userState.persistentDataStore.removeBlockedRating( 992 TvContentRating.unflattenFromString(rating)); 993 } 994 } finally { 995 Binder.restoreCallingIdentity(identity); 996 } 997 } 998 999 private void ensureParentalControlsPermission() { 1000 if (mContext.checkCallingPermission( 1001 android.Manifest.permission.MODIFY_PARENTAL_CONTROLS) 1002 != PackageManager.PERMISSION_GRANTED) { 1003 throw new SecurityException( 1004 "The caller does not have parental controls permission"); 1005 } 1006 } 1007 1008 @Override 1009 public void createSession(final ITvInputClient client, final String inputId, 1010 int seq, int userId) { 1011 final int callingUid = Binder.getCallingUid(); 1012 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1013 userId, "createSession"); 1014 final long identity = Binder.clearCallingIdentity(); 1015 try { 1016 synchronized (mLock) { 1017 UserState userState = getUserStateLocked(resolvedUserId); 1018 TvInputInfo info = userState.inputMap.get(inputId).mInfo; 1019 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 1020 if (serviceState == null) { 1021 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 1022 userState.serviceStateMap.put(info.getComponent(), serviceState); 1023 } 1024 // Send a null token immediately while reconnecting. 1025 if (serviceState.mReconnecting == true) { 1026 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1027 return; 1028 } 1029 1030 // Create a new session token and a session state. 1031 IBinder sessionToken = new Binder(); 1032 SessionState sessionState = new SessionState(sessionToken, info, client, 1033 seq, callingUid, resolvedUserId); 1034 1035 // Add them to the global session state map of the current user. 1036 userState.sessionStateMap.put(sessionToken, sessionState); 1037 1038 // Also, add them to the session state map of the current service. 1039 serviceState.mSessionTokens.add(sessionToken); 1040 1041 if (serviceState.mService != null) { 1042 createSessionInternalLocked(serviceState.mService, sessionToken, 1043 resolvedUserId); 1044 } else { 1045 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 1046 } 1047 } 1048 } finally { 1049 Binder.restoreCallingIdentity(identity); 1050 } 1051 } 1052 1053 @Override 1054 public void releaseSession(IBinder sessionToken, int userId) { 1055 final int callingUid = Binder.getCallingUid(); 1056 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1057 userId, "releaseSession"); 1058 final long identity = Binder.clearCallingIdentity(); 1059 try { 1060 synchronized (mLock) { 1061 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 1062 } 1063 } finally { 1064 Binder.restoreCallingIdentity(identity); 1065 } 1066 } 1067 1068 @Override 1069 public void setMainSession(IBinder sessionToken, int userId) { 1070 final int callingUid = Binder.getCallingUid(); 1071 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1072 userId, "setMainSession"); 1073 final long identity = Binder.clearCallingIdentity(); 1074 try { 1075 synchronized (mLock) { 1076 UserState userState = getUserStateLocked(resolvedUserId); 1077 if (sessionToken == userState.mainSessionToken) { 1078 return; 1079 } 1080 1081 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1082 resolvedUserId); 1083 ServiceState serviceState = getServiceStateLocked( 1084 sessionState.mInfo.getComponent(), resolvedUserId); 1085 ITvInputSession session = getSessionLocked(sessionState); 1086 1087 ServiceState prevMainServiceState = null; 1088 ITvInputSession prevMainSession = null; 1089 if (userState.mainSessionToken != null) { 1090 SessionState prevMainSessionState = getSessionStateLocked( 1091 userState.mainSessionToken, Process.SYSTEM_UID, resolvedUserId); 1092 prevMainServiceState = getServiceStateLocked( 1093 prevMainSessionState.mInfo.getComponent(), resolvedUserId); 1094 prevMainSession = getSessionLocked(prevMainSessionState); 1095 } 1096 1097 userState.mainSessionToken = sessionToken; 1098 1099 // Inform the new main session first. See {@link TvInputService#onSetMain}. 1100 if (serviceState.mIsHardware) { 1101 try { 1102 session.setMainSession(true); 1103 } catch (RemoteException e) { 1104 Slog.e(TAG, "error in setMainSession", e); 1105 } 1106 } 1107 if (prevMainSession != null && prevMainServiceState.mIsHardware) { 1108 try { 1109 prevMainSession.setMainSession(false); 1110 } catch (RemoteException e) { 1111 Slog.e(TAG, "error in setMainSession", e); 1112 } 1113 } 1114 } 1115 } finally { 1116 Binder.restoreCallingIdentity(identity); 1117 } 1118 } 1119 1120 @Override 1121 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1122 final int callingUid = Binder.getCallingUid(); 1123 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1124 userId, "setSurface"); 1125 final long identity = Binder.clearCallingIdentity(); 1126 try { 1127 synchronized (mLock) { 1128 try { 1129 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1130 resolvedUserId); 1131 if (sessionState.mHardwareSessionToken == null) { 1132 getSessionLocked(sessionState).setSurface(surface); 1133 } else { 1134 getSessionLocked(sessionState.mHardwareSessionToken, 1135 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1136 } 1137 } catch (RemoteException e) { 1138 Slog.e(TAG, "error in setSurface", e); 1139 } 1140 } 1141 } finally { 1142 if (surface != null) { 1143 // surface is not used in TvInputManagerService. 1144 surface.release(); 1145 } 1146 Binder.restoreCallingIdentity(identity); 1147 } 1148 } 1149 1150 @Override 1151 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1152 int height, int userId) { 1153 final int callingUid = Binder.getCallingUid(); 1154 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1155 userId, "dispatchSurfaceChanged"); 1156 final long identity = Binder.clearCallingIdentity(); 1157 try { 1158 synchronized (mLock) { 1159 try { 1160 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1161 resolvedUserId); 1162 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, height); 1163 if (sessionState.mHardwareSessionToken != null) { 1164 getSessionLocked(sessionState.mHardwareSessionToken, Process.SYSTEM_UID, 1165 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1166 } 1167 } catch (RemoteException e) { 1168 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1169 } 1170 } 1171 } finally { 1172 Binder.restoreCallingIdentity(identity); 1173 } 1174 } 1175 1176 @Override 1177 public void setVolume(IBinder sessionToken, float volume, int userId) { 1178 final float REMOTE_VOLUME_ON = 1.0f; 1179 final float REMOTE_VOLUME_OFF = 0f; 1180 final int callingUid = Binder.getCallingUid(); 1181 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1182 userId, "setVolume"); 1183 final long identity = Binder.clearCallingIdentity(); 1184 try { 1185 synchronized (mLock) { 1186 try { 1187 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1188 resolvedUserId); 1189 getSessionLocked(sessionState).setVolume(volume); 1190 if (sessionState.mHardwareSessionToken != null) { 1191 // Here, we let the hardware session know only whether volume is on or 1192 // off to prevent that the volume is controlled in the both side. 1193 getSessionLocked(sessionState.mHardwareSessionToken, 1194 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1195 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1196 } 1197 } catch (RemoteException e) { 1198 Slog.e(TAG, "error in setVolume", e); 1199 } 1200 } 1201 } finally { 1202 Binder.restoreCallingIdentity(identity); 1203 } 1204 } 1205 1206 @Override 1207 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1208 final int callingUid = Binder.getCallingUid(); 1209 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1210 userId, "tune"); 1211 final long identity = Binder.clearCallingIdentity(); 1212 try { 1213 synchronized (mLock) { 1214 try { 1215 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1216 channelUri, params); 1217 if (TvContract.isChannelUriForPassthroughTvInput(channelUri)) { 1218 // Do not log the watch history for passthrough inputs. 1219 return; 1220 } 1221 long currentTime = System.currentTimeMillis(); 1222 long channelId = ContentUris.parseId(channelUri); 1223 1224 // Close the open log entry first, if any. 1225 UserState userState = getUserStateLocked(resolvedUserId); 1226 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1227 if (sessionState.mLogUri != null) { 1228 SomeArgs args = SomeArgs.obtain(); 1229 args.arg1 = sessionState.mLogUri; 1230 args.arg2 = currentTime; 1231 mLogHandler.obtainMessage(LogHandler.MSG_CLOSE_ENTRY, args) 1232 .sendToTarget(); 1233 } 1234 1235 // Create a log entry and fill it later. 1236 String packageName = sessionState.mInfo.getServiceInfo().packageName; 1237 ContentValues values = new ContentValues(); 1238 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 1239 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 1240 currentTime); 1241 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 0); 1242 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 1243 if (params != null) { 1244 values.put(TvContract.WatchedPrograms.COLUMN_TUNE_PARAMS, 1245 encodeTuneParams(params)); 1246 } 1247 1248 sessionState.mLogUri = mContentResolver.insert( 1249 TvContract.WatchedPrograms.CONTENT_URI, values); 1250 SomeArgs args = SomeArgs.obtain(); 1251 args.arg1 = sessionState.mLogUri; 1252 args.arg2 = ContentUris.parseId(channelUri); 1253 args.arg3 = currentTime; 1254 mLogHandler.obtainMessage(LogHandler.MSG_OPEN_ENTRY, args).sendToTarget(); 1255 } catch (RemoteException e) { 1256 Slog.e(TAG, "error in tune", e); 1257 return; 1258 } 1259 } 1260 } finally { 1261 Binder.restoreCallingIdentity(identity); 1262 } 1263 } 1264 1265 @Override 1266 public void requestUnblockContent( 1267 IBinder sessionToken, String unblockedRating, int userId) { 1268 final int callingUid = Binder.getCallingUid(); 1269 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1270 userId, "unblockContent"); 1271 final long identity = Binder.clearCallingIdentity(); 1272 try { 1273 synchronized (mLock) { 1274 try { 1275 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1276 .requestUnblockContent(unblockedRating); 1277 } catch (RemoteException e) { 1278 Slog.e(TAG, "error in unblockContent", e); 1279 } 1280 } 1281 } finally { 1282 Binder.restoreCallingIdentity(identity); 1283 } 1284 } 1285 1286 @Override 1287 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1288 final int callingUid = Binder.getCallingUid(); 1289 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1290 userId, "setCaptionEnabled"); 1291 final long identity = Binder.clearCallingIdentity(); 1292 try { 1293 synchronized (mLock) { 1294 try { 1295 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1296 .setCaptionEnabled(enabled); 1297 } catch (RemoteException e) { 1298 Slog.e(TAG, "error in setCaptionEnabled", e); 1299 } 1300 } 1301 } finally { 1302 Binder.restoreCallingIdentity(identity); 1303 } 1304 } 1305 1306 @Override 1307 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1308 final int callingUid = Binder.getCallingUid(); 1309 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1310 userId, "selectTrack"); 1311 final long identity = Binder.clearCallingIdentity(); 1312 try { 1313 synchronized (mLock) { 1314 try { 1315 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1316 type, trackId); 1317 } catch (RemoteException e) { 1318 Slog.e(TAG, "error in selectTrack", e); 1319 } 1320 } 1321 } finally { 1322 Binder.restoreCallingIdentity(identity); 1323 } 1324 } 1325 1326 @Override 1327 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1328 int userId) { 1329 final int callingUid = Binder.getCallingUid(); 1330 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1331 userId, "sendAppPrivateCommand"); 1332 final long identity = Binder.clearCallingIdentity(); 1333 try { 1334 synchronized (mLock) { 1335 try { 1336 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1337 .appPrivateCommand(command, data); 1338 } catch (RemoteException e) { 1339 Slog.e(TAG, "error in sendAppPrivateCommand", e); 1340 } 1341 } 1342 } finally { 1343 Binder.restoreCallingIdentity(identity); 1344 } 1345 } 1346 1347 @Override 1348 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1349 int userId) { 1350 final int callingUid = Binder.getCallingUid(); 1351 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1352 userId, "createOverlayView"); 1353 final long identity = Binder.clearCallingIdentity(); 1354 try { 1355 synchronized (mLock) { 1356 try { 1357 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1358 .createOverlayView(windowToken, frame); 1359 } catch (RemoteException e) { 1360 Slog.e(TAG, "error in createOverlayView", e); 1361 } 1362 } 1363 } finally { 1364 Binder.restoreCallingIdentity(identity); 1365 } 1366 } 1367 1368 @Override 1369 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1370 final int callingUid = Binder.getCallingUid(); 1371 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1372 userId, "relayoutOverlayView"); 1373 final long identity = Binder.clearCallingIdentity(); 1374 try { 1375 synchronized (mLock) { 1376 try { 1377 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1378 .relayoutOverlayView(frame); 1379 } catch (RemoteException e) { 1380 Slog.e(TAG, "error in relayoutOverlayView", e); 1381 } 1382 } 1383 } finally { 1384 Binder.restoreCallingIdentity(identity); 1385 } 1386 } 1387 1388 @Override 1389 public void removeOverlayView(IBinder sessionToken, int userId) { 1390 final int callingUid = Binder.getCallingUid(); 1391 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1392 userId, "removeOverlayView"); 1393 final long identity = Binder.clearCallingIdentity(); 1394 try { 1395 synchronized (mLock) { 1396 try { 1397 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1398 .removeOverlayView(); 1399 } catch (RemoteException e) { 1400 Slog.e(TAG, "error in removeOverlayView", e); 1401 } 1402 } 1403 } finally { 1404 Binder.restoreCallingIdentity(identity); 1405 } 1406 } 1407 1408 @Override 1409 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1410 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1411 != PackageManager.PERMISSION_GRANTED) { 1412 return null; 1413 } 1414 1415 final long identity = Binder.clearCallingIdentity(); 1416 try { 1417 return mTvInputHardwareManager.getHardwareList(); 1418 } finally { 1419 Binder.restoreCallingIdentity(identity); 1420 } 1421 } 1422 1423 @Override 1424 public ITvInputHardware acquireTvInputHardware(int deviceId, 1425 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1426 throws RemoteException { 1427 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1428 != PackageManager.PERMISSION_GRANTED) { 1429 return null; 1430 } 1431 1432 final long identity = Binder.clearCallingIdentity(); 1433 final int callingUid = Binder.getCallingUid(); 1434 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1435 userId, "acquireTvInputHardware"); 1436 try { 1437 return mTvInputHardwareManager.acquireHardware( 1438 deviceId, callback, info, callingUid, resolvedUserId); 1439 } finally { 1440 Binder.restoreCallingIdentity(identity); 1441 } 1442 } 1443 1444 @Override 1445 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1446 throws RemoteException { 1447 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1448 != PackageManager.PERMISSION_GRANTED) { 1449 return; 1450 } 1451 1452 final long identity = Binder.clearCallingIdentity(); 1453 final int callingUid = Binder.getCallingUid(); 1454 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1455 userId, "releaseTvInputHardware"); 1456 try { 1457 mTvInputHardwareManager.releaseHardware( 1458 deviceId, hardware, callingUid, resolvedUserId); 1459 } finally { 1460 Binder.restoreCallingIdentity(identity); 1461 } 1462 } 1463 1464 @Override 1465 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1466 throws RemoteException { 1467 if (mContext.checkCallingPermission( 1468 android.Manifest.permission.CAPTURE_TV_INPUT) 1469 != PackageManager.PERMISSION_GRANTED) { 1470 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1471 } 1472 1473 final long identity = Binder.clearCallingIdentity(); 1474 final int callingUid = Binder.getCallingUid(); 1475 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1476 userId, "getAvailableTvStreamConfigList"); 1477 try { 1478 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1479 inputId, callingUid, resolvedUserId); 1480 } finally { 1481 Binder.restoreCallingIdentity(identity); 1482 } 1483 } 1484 1485 @Override 1486 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1487 int userId) 1488 throws RemoteException { 1489 if (mContext.checkCallingPermission( 1490 android.Manifest.permission.CAPTURE_TV_INPUT) 1491 != PackageManager.PERMISSION_GRANTED) { 1492 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1493 } 1494 1495 final long identity = Binder.clearCallingIdentity(); 1496 final int callingUid = Binder.getCallingUid(); 1497 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1498 userId, "captureFrame"); 1499 try { 1500 String hardwareInputId = null; 1501 synchronized (mLock) { 1502 UserState userState = getUserStateLocked(resolvedUserId); 1503 if (userState.inputMap.get(inputId) == null) { 1504 Slog.e(TAG, "Input not found for " + inputId); 1505 return false; 1506 } 1507 for (SessionState sessionState : userState.sessionStateMap.values()) { 1508 if (sessionState.mInfo.getId().equals(inputId) 1509 && sessionState.mHardwareSessionToken != null) { 1510 hardwareInputId = userState.sessionStateMap.get( 1511 sessionState.mHardwareSessionToken).mInfo.getId(); 1512 break; 1513 } 1514 } 1515 } 1516 return mTvInputHardwareManager.captureFrame( 1517 (hardwareInputId != null) ? hardwareInputId : inputId, 1518 surface, config, callingUid, resolvedUserId); 1519 } finally { 1520 Binder.restoreCallingIdentity(identity); 1521 } 1522 } 1523 1524 @Override 1525 @SuppressWarnings("resource") 1526 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1527 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1528 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1529 != PackageManager.PERMISSION_GRANTED) { 1530 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1531 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1532 return; 1533 } 1534 1535 synchronized (mLock) { 1536 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1537 pw.increaseIndent(); 1538 for (int i = 0; i < mUserStates.size(); i++) { 1539 int userId = mUserStates.keyAt(i); 1540 pw.println(Integer.valueOf(userId)); 1541 } 1542 pw.decreaseIndent(); 1543 1544 for (int i = 0; i < mUserStates.size(); i++) { 1545 int userId = mUserStates.keyAt(i); 1546 UserState userState = getUserStateLocked(userId); 1547 pw.println("UserState (" + userId + "):"); 1548 pw.increaseIndent(); 1549 1550 pw.println("inputMap: inputId -> TvInputState"); 1551 pw.increaseIndent(); 1552 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 1553 pw.println(entry.getKey() + ": " + entry.getValue()); 1554 } 1555 pw.decreaseIndent(); 1556 1557 pw.println("packageSet:"); 1558 pw.increaseIndent(); 1559 for (String packageName : userState.packageSet) { 1560 pw.println(packageName); 1561 } 1562 pw.decreaseIndent(); 1563 1564 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1565 pw.increaseIndent(); 1566 for (Map.Entry<IBinder, ClientState> entry : 1567 userState.clientStateMap.entrySet()) { 1568 ClientState client = entry.getValue(); 1569 pw.println(entry.getKey() + ": " + client); 1570 1571 pw.increaseIndent(); 1572 1573 pw.println("mSessionTokens:"); 1574 pw.increaseIndent(); 1575 for (IBinder token : client.mSessionTokens) { 1576 pw.println("" + token); 1577 } 1578 pw.decreaseIndent(); 1579 1580 pw.println("mClientTokens: " + client.mClientToken); 1581 pw.println("mUserId: " + client.mUserId); 1582 1583 pw.decreaseIndent(); 1584 } 1585 pw.decreaseIndent(); 1586 1587 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1588 pw.increaseIndent(); 1589 for (Map.Entry<ComponentName, ServiceState> entry : 1590 userState.serviceStateMap.entrySet()) { 1591 ServiceState service = entry.getValue(); 1592 pw.println(entry.getKey() + ": " + service); 1593 1594 pw.increaseIndent(); 1595 1596 pw.println("mClientTokens:"); 1597 pw.increaseIndent(); 1598 for (IBinder token : service.mClientTokens) { 1599 pw.println("" + token); 1600 } 1601 pw.decreaseIndent(); 1602 1603 pw.println("mSessionTokens:"); 1604 pw.increaseIndent(); 1605 for (IBinder token : service.mSessionTokens) { 1606 pw.println("" + token); 1607 } 1608 pw.decreaseIndent(); 1609 1610 pw.println("mService: " + service.mService); 1611 pw.println("mCallback: " + service.mCallback); 1612 pw.println("mBound: " + service.mBound); 1613 pw.println("mReconnecting: " + service.mReconnecting); 1614 1615 pw.decreaseIndent(); 1616 } 1617 pw.decreaseIndent(); 1618 1619 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1620 pw.increaseIndent(); 1621 for (Map.Entry<IBinder, SessionState> entry : 1622 userState.sessionStateMap.entrySet()) { 1623 SessionState session = entry.getValue(); 1624 pw.println(entry.getKey() + ": " + session); 1625 1626 pw.increaseIndent(); 1627 pw.println("mInfo: " + session.mInfo); 1628 pw.println("mClient: " + session.mClient); 1629 pw.println("mSeq: " + session.mSeq); 1630 pw.println("mCallingUid: " + session.mCallingUid); 1631 pw.println("mUserId: " + session.mUserId); 1632 pw.println("mSessionToken: " + session.mSessionToken); 1633 pw.println("mSession: " + session.mSession); 1634 pw.println("mLogUri: " + session.mLogUri); 1635 pw.println("mHardwareSessionToken: " + session.mHardwareSessionToken); 1636 pw.decreaseIndent(); 1637 } 1638 pw.decreaseIndent(); 1639 1640 pw.println("callbackSet:"); 1641 pw.increaseIndent(); 1642 for (ITvInputManagerCallback callback : userState.callbackSet) { 1643 pw.println(callback.toString()); 1644 } 1645 pw.decreaseIndent(); 1646 1647 pw.decreaseIndent(); 1648 } 1649 } 1650 } 1651 1652 private String encodeTuneParams(Bundle tuneParams) { 1653 StringBuilder builder = new StringBuilder(); 1654 Set<String> keySet = tuneParams.keySet(); 1655 Iterator<String> it = keySet.iterator(); 1656 while (it.hasNext()) { 1657 String key = it.next(); 1658 Object value = tuneParams.get(key); 1659 if (value == null) { 1660 continue; 1661 } 1662 builder.append(replaceEscapeCharacters(key)); 1663 builder.append("="); 1664 builder.append(replaceEscapeCharacters(value.toString())); 1665 if (it.hasNext()) { 1666 builder.append(", "); 1667 } 1668 } 1669 return builder.toString(); 1670 } 1671 1672 private String replaceEscapeCharacters(String src) { 1673 final char ESCAPE_CHARACTER = '%'; 1674 final String ENCODING_TARGET_CHARACTERS = "%=,"; 1675 StringBuilder builder = new StringBuilder(); 1676 for (char ch : src.toCharArray()) { 1677 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 1678 builder.append(ESCAPE_CHARACTER); 1679 } 1680 builder.append(ch); 1681 } 1682 return builder.toString(); 1683 } 1684 } 1685 1686 private static final class TvInputState { 1687 // A TvInputInfo object which represents the TV input. 1688 private TvInputInfo mInfo; 1689 1690 // The state of TV input. Connected by default. 1691 private int mState = INPUT_STATE_CONNECTED; 1692 1693 @Override 1694 public String toString() { 1695 return "mInfo: " + mInfo + "; mState: " + mState; 1696 } 1697 } 1698 1699 private static final class UserState { 1700 // A mapping from the TV input id to its TvInputState. 1701 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1702 1703 // A set of all TV input packages. 1704 private final Set<String> packageSet = new HashSet<String>(); 1705 1706 // A set of all TV content rating system xml uris. 1707 private final Set<Uri> ratingSystemXmlUriSet = new HashSet<Uri>(); 1708 1709 // A mapping from the token of a client to its state. 1710 private final Map<IBinder, ClientState> clientStateMap = 1711 new HashMap<IBinder, ClientState>(); 1712 1713 // A mapping from the name of a TV input service to its state. 1714 private final Map<ComponentName, ServiceState> serviceStateMap = 1715 new HashMap<ComponentName, ServiceState>(); 1716 1717 // A mapping from the token of a TV input session to its state. 1718 private final Map<IBinder, SessionState> sessionStateMap = 1719 new HashMap<IBinder, SessionState>(); 1720 1721 // A set of callbacks. 1722 private final Set<ITvInputManagerCallback> callbackSet = 1723 new HashSet<ITvInputManagerCallback>(); 1724 1725 // The token of a "main" TV input session. 1726 private IBinder mainSessionToken = null; 1727 1728 // Persistent data store for all internal settings maintained by the TV input manager 1729 // service. 1730 private final PersistentDataStore persistentDataStore; 1731 1732 private UserState(Context context, int userId) { 1733 persistentDataStore = new PersistentDataStore(context, userId); 1734 } 1735 } 1736 1737 private final class ClientState implements IBinder.DeathRecipient { 1738 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1739 1740 private IBinder mClientToken; 1741 private final int mUserId; 1742 1743 ClientState(IBinder clientToken, int userId) { 1744 mClientToken = clientToken; 1745 mUserId = userId; 1746 } 1747 1748 public boolean isEmpty() { 1749 return mSessionTokens.isEmpty(); 1750 } 1751 1752 @Override 1753 public void binderDied() { 1754 synchronized (mLock) { 1755 UserState userState = getUserStateLocked(mUserId); 1756 // DO NOT remove the client state of clientStateMap in this method. It will be 1757 // removed in releaseSessionLocked(). 1758 ClientState clientState = userState.clientStateMap.get(mClientToken); 1759 if (clientState != null) { 1760 while (clientState.mSessionTokens.size() > 0) { 1761 releaseSessionLocked( 1762 clientState.mSessionTokens.get(0), Process.SYSTEM_UID, mUserId); 1763 } 1764 } 1765 mClientToken = null; 1766 } 1767 } 1768 } 1769 1770 private final class ServiceState { 1771 private final List<IBinder> mClientTokens = new ArrayList<IBinder>(); 1772 private final List<IBinder> mSessionTokens = new ArrayList<IBinder>(); 1773 private final ServiceConnection mConnection; 1774 private final ComponentName mComponent; 1775 private final boolean mIsHardware; 1776 private final List<TvInputInfo> mInputList = new ArrayList<TvInputInfo>(); 1777 1778 private ITvInputService mService; 1779 private ServiceCallback mCallback; 1780 private boolean mBound; 1781 private boolean mReconnecting; 1782 1783 private ServiceState(ComponentName component, int userId) { 1784 mComponent = component; 1785 mConnection = new InputServiceConnection(component, userId); 1786 mIsHardware = hasHardwarePermission(mContext.getPackageManager(), mComponent); 1787 } 1788 } 1789 1790 private final class SessionState implements IBinder.DeathRecipient { 1791 private final TvInputInfo mInfo; 1792 private final ITvInputClient mClient; 1793 private final int mSeq; 1794 private final int mCallingUid; 1795 private final int mUserId; 1796 private final IBinder mSessionToken; 1797 private ITvInputSession mSession; 1798 private Uri mLogUri; 1799 // Not null if this session represents an external device connected to a hardware TV input. 1800 private IBinder mHardwareSessionToken; 1801 1802 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, 1803 int seq, int callingUid, int userId) { 1804 mSessionToken = sessionToken; 1805 mInfo = info; 1806 mClient = client; 1807 mSeq = seq; 1808 mCallingUid = callingUid; 1809 mUserId = userId; 1810 } 1811 1812 @Override 1813 public void binderDied() { 1814 synchronized (mLock) { 1815 mSession = null; 1816 if (mClient != null) { 1817 try { 1818 mClient.onSessionReleased(mSeq); 1819 } catch(RemoteException e) { 1820 Slog.e(TAG, "error in onSessionReleased", e); 1821 } 1822 } 1823 // If there are any other sessions based on this session, they should be released. 1824 UserState userState = getUserStateLocked(mUserId); 1825 for (SessionState sessionState : userState.sessionStateMap.values()) { 1826 if (mSession != null && mSession == sessionState.mHardwareSessionToken) { 1827 try { 1828 sessionState.mSession.release(); 1829 } catch (RemoteException e) { 1830 Slog.e(TAG, "error in release", e); 1831 } 1832 try { 1833 sessionState.mClient.onSessionReleased(sessionState.mSeq); 1834 } catch (RemoteException e) { 1835 Slog.e(TAG, "error in onSessionReleased", e); 1836 } 1837 } 1838 } 1839 removeSessionStateLocked(mSessionToken, mUserId); 1840 } 1841 } 1842 } 1843 1844 private final class InputServiceConnection implements ServiceConnection { 1845 private final ComponentName mComponent; 1846 private final int mUserId; 1847 1848 private InputServiceConnection(ComponentName component, int userId) { 1849 mComponent = component; 1850 mUserId = userId; 1851 } 1852 1853 @Override 1854 public void onServiceConnected(ComponentName component, IBinder service) { 1855 if (DEBUG) { 1856 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 1857 } 1858 synchronized (mLock) { 1859 UserState userState = getUserStateLocked(mUserId); 1860 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1861 serviceState.mService = ITvInputService.Stub.asInterface(service); 1862 1863 // Register a callback, if we need to. 1864 if (serviceState.mIsHardware && serviceState.mCallback == null) { 1865 serviceState.mCallback = new ServiceCallback(mComponent, mUserId); 1866 try { 1867 serviceState.mService.registerCallback(serviceState.mCallback); 1868 } catch (RemoteException e) { 1869 Slog.e(TAG, "error in registerCallback", e); 1870 } 1871 } 1872 1873 // And create sessions, if any. 1874 for (IBinder sessionToken : serviceState.mSessionTokens) { 1875 createSessionInternalLocked(serviceState.mService, sessionToken, mUserId); 1876 } 1877 1878 for (TvInputState inputState : userState.inputMap.values()) { 1879 if (inputState.mInfo.getComponent().equals(component) 1880 && inputState.mState != INPUT_STATE_DISCONNECTED) { 1881 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1882 inputState.mState, null); 1883 } 1884 } 1885 1886 if (serviceState.mIsHardware) { 1887 List<TvInputHardwareInfo> hardwareInfoList = 1888 mTvInputHardwareManager.getHardwareList(); 1889 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 1890 try { 1891 serviceState.mService.notifyHardwareAdded(hardwareInfo); 1892 } catch (RemoteException e) { 1893 Slog.e(TAG, "error in notifyHardwareAdded", e); 1894 } 1895 } 1896 1897 List<HdmiDeviceInfo> cecDeviceInfoList = 1898 mTvInputHardwareManager.getHdmiCecInputDeviceList(); 1899 for (HdmiDeviceInfo cecDeviceInfo : cecDeviceInfoList) { 1900 try { 1901 serviceState.mService.notifyHdmiCecDeviceAdded(cecDeviceInfo); 1902 } catch (RemoteException e) { 1903 Slog.e(TAG, "error in notifyHdmiCecDeviceAdded", e); 1904 } 1905 } 1906 } 1907 } 1908 } 1909 1910 @Override 1911 public void onServiceDisconnected(ComponentName component) { 1912 if (DEBUG) { 1913 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 1914 } 1915 if (!mComponent.equals(component)) { 1916 throw new IllegalArgumentException("Mismatched ComponentName: " 1917 + mComponent + " (expected), " + component + " (actual)."); 1918 } 1919 synchronized (mLock) { 1920 UserState userState = getUserStateLocked(mUserId); 1921 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1922 if (serviceState != null) { 1923 serviceState.mReconnecting = true; 1924 serviceState.mBound = false; 1925 serviceState.mService = null; 1926 serviceState.mCallback = null; 1927 1928 // Send null tokens for not finishing create session events. 1929 for (IBinder sessionToken : serviceState.mSessionTokens) { 1930 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1931 if (sessionState.mSession == null) { 1932 removeSessionStateLocked(sessionToken, sessionState.mUserId); 1933 sendSessionTokenToClientLocked(sessionState.mClient, 1934 sessionState.mInfo.getId(), null, null, sessionState.mSeq); 1935 } 1936 } 1937 1938 for (TvInputState inputState : userState.inputMap.values()) { 1939 if (inputState.mInfo.getComponent().equals(component)) { 1940 notifyInputStateChangedLocked(userState, inputState.mInfo.getId(), 1941 INPUT_STATE_DISCONNECTED, null); 1942 } 1943 } 1944 updateServiceConnectionLocked(mComponent, mUserId); 1945 } 1946 } 1947 } 1948 } 1949 1950 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1951 private final ComponentName mComponent; 1952 private final int mUserId; 1953 1954 ServiceCallback(ComponentName component, int userId) { 1955 mComponent = component; 1956 mUserId = userId; 1957 } 1958 1959 private void ensureHardwarePermission() { 1960 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1961 != PackageManager.PERMISSION_GRANTED) { 1962 throw new SecurityException("The caller does not have hardware permission"); 1963 } 1964 } 1965 1966 private void ensureValidInput(TvInputInfo inputInfo) { 1967 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 1968 throw new IllegalArgumentException("Invalid TvInputInfo"); 1969 } 1970 } 1971 1972 private void addTvInputLocked(TvInputInfo inputInfo) { 1973 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 1974 serviceState.mInputList.add(inputInfo); 1975 buildTvInputListLocked(mUserId); 1976 } 1977 1978 @Override 1979 public void addHardwareTvInput(int deviceId, TvInputInfo inputInfo) { 1980 ensureHardwarePermission(); 1981 ensureValidInput(inputInfo); 1982 synchronized (mLock) { 1983 mTvInputHardwareManager.addHardwareTvInput(deviceId, inputInfo); 1984 addTvInputLocked(inputInfo); 1985 } 1986 } 1987 1988 @Override 1989 public void addHdmiCecTvInput(int logicalAddress, TvInputInfo inputInfo) { 1990 ensureHardwarePermission(); 1991 ensureValidInput(inputInfo); 1992 synchronized (mLock) { 1993 mTvInputHardwareManager.addHdmiCecTvInput(logicalAddress, inputInfo); 1994 addTvInputLocked(inputInfo); 1995 } 1996 } 1997 1998 @Override 1999 public void removeTvInput(String inputId) { 2000 ensureHardwarePermission(); 2001 synchronized (mLock) { 2002 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2003 boolean removed = false; 2004 for (Iterator<TvInputInfo> it = serviceState.mInputList.iterator(); 2005 it.hasNext(); ) { 2006 if (it.next().getId().equals(inputId)) { 2007 it.remove(); 2008 removed = true; 2009 break; 2010 } 2011 } 2012 if (removed) { 2013 buildTvInputListLocked(mUserId); 2014 mTvInputHardwareManager.removeTvInput(inputId); 2015 } else { 2016 Slog.e(TAG, "TvInputInfo with inputId=" + inputId + " not found."); 2017 } 2018 } 2019 } 2020 } 2021 2022 private final class LogHandler extends Handler { 2023 private static final int MSG_OPEN_ENTRY = 1; 2024 private static final int MSG_UPDATE_ENTRY = 2; 2025 private static final int MSG_CLOSE_ENTRY = 3; 2026 2027 public LogHandler(Looper looper) { 2028 super(looper); 2029 } 2030 2031 @Override 2032 public void handleMessage(Message msg) { 2033 switch (msg.what) { 2034 case MSG_OPEN_ENTRY: { 2035 SomeArgs args = (SomeArgs) msg.obj; 2036 Uri uri = (Uri) args.arg1; 2037 long channelId = (long) args.arg2; 2038 long time = (long) args.arg3; 2039 onOpenEntry(uri, channelId, time); 2040 args.recycle(); 2041 return; 2042 } 2043 case MSG_UPDATE_ENTRY: { 2044 SomeArgs args = (SomeArgs) msg.obj; 2045 Uri uri = (Uri) args.arg1; 2046 long channelId = (long) args.arg2; 2047 long time = (long) args.arg3; 2048 onUpdateEntry(uri, channelId, time); 2049 args.recycle(); 2050 return; 2051 } 2052 case MSG_CLOSE_ENTRY: { 2053 SomeArgs args = (SomeArgs) msg.obj; 2054 Uri uri = (Uri) args.arg1; 2055 long time = (long) args.arg2; 2056 onCloseEntry(uri, time); 2057 args.recycle(); 2058 return; 2059 } 2060 default: { 2061 Slog.w(TAG, "Unhandled message code: " + msg.what); 2062 return; 2063 } 2064 } 2065 } 2066 2067 private void onOpenEntry(Uri uri, long channelId, long watchStarttime) { 2068 String[] projection = { 2069 TvContract.Programs.COLUMN_TITLE, 2070 TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS, 2071 TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS, 2072 TvContract.Programs.COLUMN_SHORT_DESCRIPTION 2073 }; 2074 String selection = TvContract.Programs.COLUMN_CHANNEL_ID + "=? AND " 2075 + TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + "<=? AND " 2076 + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + ">?"; 2077 String[] selectionArgs = { 2078 String.valueOf(channelId), 2079 String.valueOf(watchStarttime), 2080 String.valueOf(watchStarttime) 2081 }; 2082 String sortOrder = TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " ASC"; 2083 Cursor cursor = null; 2084 try { 2085 cursor = mContentResolver.query(TvContract.Programs.CONTENT_URI, projection, 2086 selection, selectionArgs, sortOrder); 2087 if (cursor != null && cursor.moveToNext()) { 2088 ContentValues values = new ContentValues(); 2089 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, cursor.getString(0)); 2090 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 2091 cursor.getLong(1)); 2092 long endTime = cursor.getLong(2); 2093 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 2094 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, cursor.getString(3)); 2095 mContentResolver.update(uri, values, null, null); 2096 2097 // Schedule an update when the current program ends. 2098 SomeArgs args = SomeArgs.obtain(); 2099 args.arg1 = uri; 2100 args.arg2 = channelId; 2101 args.arg3 = endTime; 2102 Message msg = obtainMessage(LogHandler.MSG_UPDATE_ENTRY, args); 2103 sendMessageDelayed(msg, endTime - System.currentTimeMillis()); 2104 } 2105 } finally { 2106 if (cursor != null) { 2107 cursor.close(); 2108 } 2109 } 2110 } 2111 2112 private void onUpdateEntry(Uri uri, long channelId, long time) { 2113 String[] projection = { 2114 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2115 TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2116 TvContract.WatchedPrograms.COLUMN_TITLE, 2117 TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, 2118 TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, 2119 TvContract.WatchedPrograms.COLUMN_DESCRIPTION 2120 }; 2121 Cursor cursor = null; 2122 try { 2123 cursor = mContentResolver.query(uri, projection, null, null, null); 2124 if (cursor != null && cursor.moveToNext()) { 2125 long watchStartTime = cursor.getLong(0); 2126 long watchEndTime = cursor.getLong(1); 2127 String title = cursor.getString(2); 2128 long startTime = cursor.getLong(3); 2129 long endTime = cursor.getLong(4); 2130 String description = cursor.getString(5); 2131 2132 // Do nothing if the current log entry is already closed. 2133 if (watchEndTime > 0) { 2134 return; 2135 } 2136 2137 // The current program has just ended. Create a (complete) log entry off the 2138 // current entry. 2139 ContentValues values = new ContentValues(); 2140 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2141 watchStartTime); 2142 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, time); 2143 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2144 values.put(TvContract.WatchedPrograms.COLUMN_TITLE, title); 2145 values.put(TvContract.WatchedPrograms.COLUMN_START_TIME_UTC_MILLIS, startTime); 2146 values.put(TvContract.WatchedPrograms.COLUMN_END_TIME_UTC_MILLIS, endTime); 2147 values.put(TvContract.WatchedPrograms.COLUMN_DESCRIPTION, description); 2148 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2149 } 2150 } finally { 2151 if (cursor != null) { 2152 cursor.close(); 2153 } 2154 } 2155 // Re-open the current log entry with the next program information. 2156 onOpenEntry(uri, channelId, time); 2157 } 2158 2159 private void onCloseEntry(Uri uri, long watchEndTime) { 2160 ContentValues values = new ContentValues(); 2161 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, watchEndTime); 2162 mContentResolver.update(uri, values, null, null); 2163 } 2164 } 2165 2166 final class HardwareListener implements TvInputHardwareManager.Listener { 2167 @Override 2168 public void onStateChanged(String inputId, int state) { 2169 synchronized (mLock) { 2170 setStateLocked(inputId, state, mCurrentUserId); 2171 } 2172 } 2173 2174 @Override 2175 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2176 synchronized (mLock) { 2177 UserState userState = getUserStateLocked(mCurrentUserId); 2178 // Broadcast the event to all hardware inputs. 2179 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2180 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2181 try { 2182 serviceState.mService.notifyHardwareAdded(info); 2183 } catch (RemoteException e) { 2184 Slog.e(TAG, "error in notifyHardwareAdded", e); 2185 } 2186 } 2187 } 2188 } 2189 2190 @Override 2191 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2192 synchronized (mLock) { 2193 UserState userState = getUserStateLocked(mCurrentUserId); 2194 // Broadcast the event to all hardware inputs. 2195 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2196 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2197 try { 2198 serviceState.mService.notifyHardwareRemoved(info); 2199 } catch (RemoteException e) { 2200 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2201 } 2202 } 2203 } 2204 } 2205 2206 @Override 2207 public void onHdmiCecDeviceAdded(HdmiDeviceInfo cecDeviceInfo) { 2208 synchronized (mLock) { 2209 UserState userState = getUserStateLocked(mCurrentUserId); 2210 // Broadcast the event to all hardware inputs. 2211 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2212 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2213 try { 2214 serviceState.mService.notifyHdmiCecDeviceAdded(cecDeviceInfo); 2215 } catch (RemoteException e) { 2216 Slog.e(TAG, "error in notifyHdmiCecDeviceAdded", e); 2217 } 2218 } 2219 } 2220 } 2221 2222 @Override 2223 public void onHdmiCecDeviceRemoved(HdmiDeviceInfo cecDeviceInfo) { 2224 synchronized (mLock) { 2225 UserState userState = getUserStateLocked(mCurrentUserId); 2226 // Broadcast the event to all hardware inputs. 2227 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2228 if (!serviceState.mIsHardware || serviceState.mService == null) continue; 2229 try { 2230 serviceState.mService.notifyHdmiCecDeviceRemoved(cecDeviceInfo); 2231 } catch (RemoteException e) { 2232 Slog.e(TAG, "error in notifyHdmiCecDeviceRemoved", e); 2233 } 2234 } 2235 } 2236 } 2237 } 2238} 2239