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 17 package com.android.server.tv; 18 19 import static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED; 20 import static android.media.tv.TvInputManager.INPUT_STATE_CONNECTED_STANDBY; 21 import static android.media.tv.TvInputManager.INPUT_STATE_DISCONNECTED; 22 import static android.media.tv.TvInputManager.INPUT_STATE_UNKNOWN; 23 24 import android.app.ActivityManager; 25 import android.content.BroadcastReceiver; 26 import android.content.ComponentName; 27 import android.content.ContentProviderOperation; 28 import android.content.ContentProviderResult; 29 import android.content.ContentResolver; 30 import android.content.ContentUris; 31 import android.content.ContentValues; 32 import android.content.Context; 33 import android.content.Intent; 34 import android.content.IntentFilter; 35 import android.content.OperationApplicationException; 36 import android.content.ServiceConnection; 37 import android.content.pm.ActivityInfo; 38 import android.content.pm.PackageManager; 39 import android.content.pm.ResolveInfo; 40 import android.content.pm.ServiceInfo; 41 import android.graphics.Rect; 42 import android.hardware.hdmi.HdmiControlManager; 43 import android.hardware.hdmi.HdmiDeviceInfo; 44 import android.media.tv.ITvInputClient; 45 import android.media.tv.ITvInputHardware; 46 import android.media.tv.ITvInputHardwareCallback; 47 import android.media.tv.ITvInputManager; 48 import android.media.tv.ITvInputManagerCallback; 49 import android.media.tv.ITvInputService; 50 import android.media.tv.ITvInputServiceCallback; 51 import android.media.tv.ITvInputSession; 52 import android.media.tv.ITvInputSessionCallback; 53 import android.media.tv.TvContentRating; 54 import android.media.tv.TvContentRatingSystemInfo; 55 import android.media.tv.TvContract; 56 import android.media.tv.TvInputHardwareInfo; 57 import android.media.tv.TvInputInfo; 58 import android.media.tv.TvInputManager; 59 import android.media.tv.TvInputService; 60 import android.media.tv.TvStreamConfig; 61 import android.media.tv.TvTrackInfo; 62 import android.net.Uri; 63 import android.os.Binder; 64 import android.os.Bundle; 65 import android.os.Handler; 66 import android.os.IBinder; 67 import android.os.Looper; 68 import android.os.Message; 69 import android.os.Process; 70 import android.os.RemoteException; 71 import android.os.UserHandle; 72 import android.util.Slog; 73 import android.util.SparseArray; 74 import android.view.InputChannel; 75 import android.view.Surface; 76 77 import com.android.internal.content.PackageMonitor; 78 import com.android.internal.os.SomeArgs; 79 import com.android.internal.util.IndentingPrintWriter; 80 import com.android.server.IoThread; 81 import com.android.server.SystemService; 82 83 import org.xmlpull.v1.XmlPullParserException; 84 85 import java.io.FileDescriptor; 86 import java.io.IOException; 87 import java.io.PrintWriter; 88 import java.util.ArrayList; 89 import java.util.Arrays; 90 import java.util.HashMap; 91 import java.util.HashSet; 92 import java.util.Iterator; 93 import java.util.List; 94 import java.util.Map; 95 import java.util.Set; 96 97 /** This class provides a system service that manages television inputs. */ 98 public final class TvInputManagerService extends SystemService { 99 private static final boolean DEBUG = false; 100 private static final String TAG = "TvInputManagerService"; 101 102 private final Context mContext; 103 private final TvInputHardwareManager mTvInputHardwareManager; 104 105 private final ContentResolver mContentResolver; 106 107 // A global lock. 108 private final Object mLock = new Object(); 109 110 // ID of the current user. 111 private int mCurrentUserId = UserHandle.USER_OWNER; 112 113 // A map from user id to UserState. 114 private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); 115 116 private final WatchLogHandler mWatchLogHandler; 117 118 public TvInputManagerService(Context context) { 119 super(context); 120 121 mContext = context; 122 mContentResolver = context.getContentResolver(); 123 mWatchLogHandler = new WatchLogHandler(mContentResolver, IoThread.get().getLooper()); 124 125 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 126 127 synchronized (mLock) { 128 mUserStates.put(mCurrentUserId, new UserState(mContext, mCurrentUserId)); 129 } 130 } 131 132 @Override 133 public void onStart() { 134 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 135 } 136 137 @Override 138 public void onBootPhase(int phase) { 139 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 140 registerBroadcastReceivers(); 141 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 142 synchronized (mLock) { 143 buildTvInputListLocked(mCurrentUserId, null); 144 buildTvContentRatingSystemListLocked(mCurrentUserId); 145 } 146 } 147 mTvInputHardwareManager.onBootPhase(phase); 148 } 149 150 private void registerBroadcastReceivers() { 151 PackageMonitor monitor = new PackageMonitor() { 152 private void buildTvInputList(String[] packages) { 153 synchronized (mLock) { 154 buildTvInputListLocked(getChangingUserId(), packages); 155 buildTvContentRatingSystemListLocked(getChangingUserId()); 156 } 157 } 158 159 @Override 160 public void onPackageUpdateFinished(String packageName, int uid) { 161 if (DEBUG) Slog.d(TAG, "onPackageUpdateFinished(packageName=" + packageName + ")"); 162 // This callback is invoked when the TV input is reinstalled. 163 // In this case, isReplacing() always returns true. 164 buildTvInputList(new String[] { packageName }); 165 } 166 167 @Override 168 public void onPackagesAvailable(String[] packages) { 169 if (DEBUG) { 170 Slog.d(TAG, "onPackagesAvailable(packages=" + Arrays.toString(packages) + ")"); 171 } 172 // This callback is invoked when the media on which some packages exist become 173 // available. 174 if (isReplacing()) { 175 buildTvInputList(packages); 176 } 177 } 178 179 @Override 180 public void onPackagesUnavailable(String[] packages) { 181 // This callback is invoked when the media on which some packages exist become 182 // unavailable. 183 if (DEBUG) { 184 Slog.d(TAG, "onPackagesUnavailable(packages=" + Arrays.toString(packages) 185 + ")"); 186 } 187 if (isReplacing()) { 188 buildTvInputList(packages); 189 } 190 } 191 192 @Override 193 public void onSomePackagesChanged() { 194 // TODO: Use finer-grained methods(e.g. onPackageAdded, onPackageRemoved) to manage 195 // the TV inputs. 196 if (DEBUG) Slog.d(TAG, "onSomePackagesChanged()"); 197 if (isReplacing()) { 198 if (DEBUG) Slog.d(TAG, "Skipped building TV input list due to replacing"); 199 // When the package is updated, buildTvInputListLocked is called in other 200 // methods instead. 201 return; 202 } 203 buildTvInputList(null); 204 } 205 206 @Override 207 public void onPackageRemoved(String packageName, int uid) { 208 synchronized (mLock) { 209 UserState userState = getUserStateLocked(getChangingUserId()); 210 if (!userState.packageSet.contains(packageName)) { 211 // Not a TV input package. 212 return; 213 } 214 } 215 216 ArrayList<ContentProviderOperation> operations = 217 new ArrayList<ContentProviderOperation>(); 218 219 String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?"; 220 String[] selectionArgs = { packageName }; 221 222 operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI) 223 .withSelection(selection, selectionArgs).build()); 224 operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI) 225 .withSelection(selection, selectionArgs).build()); 226 operations.add(ContentProviderOperation 227 .newDelete(TvContract.WatchedPrograms.CONTENT_URI) 228 .withSelection(selection, selectionArgs).build()); 229 230 ContentProviderResult[] results = null; 231 try { 232 results = mContentResolver.applyBatch(TvContract.AUTHORITY, operations); 233 } catch (RemoteException | OperationApplicationException e) { 234 Slog.e(TAG, "error in applyBatch", e); 235 } 236 237 if (DEBUG) { 238 Slog.d(TAG, "onPackageRemoved(packageName=" + packageName + ", uid=" + uid 239 + ")"); 240 Slog.d(TAG, "results=" + results); 241 } 242 } 243 }; 244 monitor.register(mContext, null, UserHandle.ALL, true); 245 246 IntentFilter intentFilter = new IntentFilter(); 247 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 248 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 249 mContext.registerReceiverAsUser(new BroadcastReceiver() { 250 @Override 251 public void onReceive(Context context, Intent intent) { 252 String action = intent.getAction(); 253 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 254 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 255 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 256 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 257 } 258 } 259 }, UserHandle.ALL, intentFilter, null, null); 260 } 261 262 private static boolean hasHardwarePermission(PackageManager pm, ComponentName component) { 263 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 264 component.getPackageName()) == PackageManager.PERMISSION_GRANTED; 265 } 266 267 private void buildTvInputListLocked(int userId, String[] updatedPackages) { 268 UserState userState = getUserStateLocked(userId); 269 userState.packageSet.clear(); 270 271 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 272 PackageManager pm = mContext.getPackageManager(); 273 List<ResolveInfo> services = pm.queryIntentServices( 274 new Intent(TvInputService.SERVICE_INTERFACE), 275 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA); 276 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 277 for (ResolveInfo ri : services) { 278 ServiceInfo si = ri.serviceInfo; 279 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 280 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 281 + android.Manifest.permission.BIND_TV_INPUT); 282 continue; 283 } 284 285 ComponentName component = new ComponentName(si.packageName, si.name); 286 if (hasHardwarePermission(pm, component)) { 287 ServiceState serviceState = userState.serviceStateMap.get(component); 288 if (serviceState == null) { 289 // We see this hardware TV input service for the first time; we need to 290 // prepare the ServiceState object so that we can connect to the service and 291 // let it add TvInputInfo objects to mInputList if there's any. 292 serviceState = new ServiceState(component, userId); 293 userState.serviceStateMap.put(component, serviceState); 294 updateServiceConnectionLocked(component, userId); 295 } else { 296 inputList.addAll(serviceState.inputList); 297 } 298 } else { 299 try { 300 inputList.add(TvInputInfo.createTvInputInfo(mContext, ri)); 301 } catch (XmlPullParserException | IOException e) { 302 Slog.e(TAG, "failed to load TV input " + si.name, e); 303 continue; 304 } 305 } 306 userState.packageSet.add(si.packageName); 307 } 308 309 Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 310 for (TvInputInfo info : inputList) { 311 if (DEBUG) { 312 Slog.d(TAG, "add " + info.getId()); 313 } 314 TvInputState state = userState.inputMap.get(info.getId()); 315 if (state == null) { 316 state = new TvInputState(); 317 } 318 state.info = info; 319 inputMap.put(info.getId(), state); 320 } 321 322 for (String inputId : inputMap.keySet()) { 323 if (!userState.inputMap.containsKey(inputId)) { 324 notifyInputAddedLocked(userState, inputId); 325 } else if (updatedPackages != null) { 326 // Notify the package updates 327 ComponentName component = inputMap.get(inputId).info.getComponent(); 328 for (String updatedPackage : updatedPackages) { 329 if (component.getPackageName().equals(updatedPackage)) { 330 updateServiceConnectionLocked(component, userId); 331 notifyInputUpdatedLocked(userState, inputId); 332 break; 333 } 334 } 335 } 336 } 337 338 for (String inputId : userState.inputMap.keySet()) { 339 if (!inputMap.containsKey(inputId)) { 340 TvInputInfo info = userState.inputMap.get(inputId).info; 341 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 342 if (serviceState != null) { 343 abortPendingCreateSessionRequestsLocked(serviceState, inputId, userId); 344 } 345 notifyInputRemovedLocked(userState, inputId); 346 } 347 } 348 349 userState.inputMap.clear(); 350 userState.inputMap = inputMap; 351 } 352 353 private void buildTvContentRatingSystemListLocked(int userId) { 354 UserState userState = getUserStateLocked(userId); 355 userState.contentRatingSystemList.clear(); 356 357 final PackageManager pm = mContext.getPackageManager(); 358 Intent intent = new Intent(TvInputManager.ACTION_QUERY_CONTENT_RATING_SYSTEMS); 359 for (ResolveInfo resolveInfo : 360 pm.queryBroadcastReceivers(intent, PackageManager.GET_META_DATA)) { 361 ActivityInfo receiver = resolveInfo.activityInfo; 362 Bundle metaData = receiver.metaData; 363 if (metaData == null) { 364 continue; 365 } 366 367 int xmlResId = metaData.getInt(TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS); 368 if (xmlResId == 0) { 369 Slog.w(TAG, "Missing meta-data '" 370 + TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS + "' on receiver " 371 + receiver.packageName + "/" + receiver.name); 372 continue; 373 } 374 userState.contentRatingSystemList.add( 375 TvContentRatingSystemInfo.createTvContentRatingSystemInfo(xmlResId, 376 receiver.applicationInfo)); 377 } 378 } 379 380 private void switchUser(int userId) { 381 synchronized (mLock) { 382 if (mCurrentUserId == userId) { 383 return; 384 } 385 // final int oldUserId = mCurrentUserId; 386 // TODO: Release services and sessions in the old user state, if needed. 387 mCurrentUserId = userId; 388 389 UserState userState = mUserStates.get(userId); 390 if (userState == null) { 391 userState = new UserState(mContext, userId); 392 } 393 mUserStates.put(userId, userState); 394 buildTvInputListLocked(userId, null); 395 buildTvContentRatingSystemListLocked(userId); 396 } 397 } 398 399 private void removeUser(int userId) { 400 synchronized (mLock) { 401 UserState userState = mUserStates.get(userId); 402 if (userState == null) { 403 return; 404 } 405 // Release created sessions. 406 for (SessionState state : userState.sessionStateMap.values()) { 407 if (state.session != null) { 408 try { 409 state.session.release(); 410 } catch (RemoteException e) { 411 Slog.e(TAG, "error in release", e); 412 } 413 } 414 } 415 userState.sessionStateMap.clear(); 416 417 // Unregister all callbacks and unbind all services. 418 for (ServiceState serviceState : userState.serviceStateMap.values()) { 419 if (serviceState.callback != null) { 420 try { 421 serviceState.service.unregisterCallback(serviceState.callback); 422 } catch (RemoteException e) { 423 Slog.e(TAG, "error in unregisterCallback", e); 424 } 425 } 426 mContext.unbindService(serviceState.connection); 427 } 428 userState.serviceStateMap.clear(); 429 430 // Clear everything else. 431 userState.inputMap.clear(); 432 userState.packageSet.clear(); 433 userState.contentRatingSystemList.clear(); 434 userState.clientStateMap.clear(); 435 userState.callbackSet.clear(); 436 userState.mainSessionToken = null; 437 438 mUserStates.remove(userId); 439 } 440 } 441 442 private UserState getUserStateLocked(int userId) { 443 UserState userState = mUserStates.get(userId); 444 if (userState == null) { 445 throw new IllegalStateException("User state not found for user ID " + userId); 446 } 447 return userState; 448 } 449 450 private ServiceState getServiceStateLocked(ComponentName component, int userId) { 451 UserState userState = getUserStateLocked(userId); 452 ServiceState serviceState = userState.serviceStateMap.get(component); 453 if (serviceState == null) { 454 throw new IllegalStateException("Service state not found for " + component + " (userId=" 455 + userId + ")"); 456 } 457 return serviceState; 458 } 459 460 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 461 UserState userState = getUserStateLocked(userId); 462 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 463 if (sessionState == null) { 464 throw new SessionNotFoundException("Session state not found for token " + sessionToken); 465 } 466 // Only the application that requested this session or the system can access it. 467 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.callingUid) { 468 throw new SecurityException("Illegal access to the session with token " + sessionToken 469 + " from uid " + callingUid); 470 } 471 return sessionState; 472 } 473 474 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 475 return getSessionLocked(getSessionStateLocked(sessionToken, callingUid, userId)); 476 } 477 478 private ITvInputSession getSessionLocked(SessionState sessionState) { 479 ITvInputSession session = sessionState.session; 480 if (session == null) { 481 throw new IllegalStateException("Session not yet created for token " 482 + sessionState.sessionToken); 483 } 484 return session; 485 } 486 487 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 488 String methodName) { 489 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 490 false, methodName, null); 491 } 492 493 private static boolean shouldMaintainConnection(ServiceState serviceState) { 494 return !serviceState.sessionTokens.isEmpty() || serviceState.isHardware; 495 // TODO: Find a way to maintain connection to hardware TV input service only when necessary. 496 } 497 498 private void updateServiceConnectionLocked(ComponentName component, int userId) { 499 UserState userState = getUserStateLocked(userId); 500 ServiceState serviceState = userState.serviceStateMap.get(component); 501 if (serviceState == null) { 502 return; 503 } 504 if (serviceState.reconnecting) { 505 if (!serviceState.sessionTokens.isEmpty()) { 506 // wait until all the sessions are removed. 507 return; 508 } 509 serviceState.reconnecting = false; 510 } 511 boolean maintainConnection = shouldMaintainConnection(serviceState); 512 if (serviceState.service == null && maintainConnection && userId == mCurrentUserId) { 513 // This means that the service is not yet connected but its state indicates that we 514 // have pending requests. Then, connect the service. 515 if (serviceState.bound) { 516 // We have already bound to the service so we don't try to bind again until after we 517 // unbind later on. 518 return; 519 } 520 if (DEBUG) { 521 Slog.d(TAG, "bindServiceAsUser(service=" + component + ", userId=" + userId + ")"); 522 } 523 524 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(component); 525 serviceState.bound = mContext.bindServiceAsUser( 526 i, serviceState.connection, Context.BIND_AUTO_CREATE, new UserHandle(userId)); 527 } else if (serviceState.service != null && !maintainConnection) { 528 // This means that the service is already connected but its state indicates that we have 529 // nothing to do with it. Then, disconnect the service. 530 if (DEBUG) { 531 Slog.d(TAG, "unbindService(service=" + component + ")"); 532 } 533 mContext.unbindService(serviceState.connection); 534 userState.serviceStateMap.remove(component); 535 } 536 } 537 538 private void abortPendingCreateSessionRequestsLocked(ServiceState serviceState, 539 String inputId, int userId) { 540 // Let clients know the create session requests are failed. 541 UserState userState = getUserStateLocked(userId); 542 List<SessionState> sessionsToAbort = new ArrayList<>(); 543 for (IBinder sessionToken : serviceState.sessionTokens) { 544 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 545 if (sessionState.session == null && (inputId == null 546 || sessionState.info.getId().equals(inputId))) { 547 sessionsToAbort.add(sessionState); 548 } 549 } 550 for (SessionState sessionState : sessionsToAbort) { 551 removeSessionStateLocked(sessionState.sessionToken, sessionState.userId); 552 sendSessionTokenToClientLocked(sessionState.client, 553 sessionState.info.getId(), null, null, sessionState.seq); 554 } 555 updateServiceConnectionLocked(serviceState.component, userId); 556 } 557 558 private void createSessionInternalLocked(ITvInputService service, IBinder sessionToken, 559 int userId) { 560 UserState userState = getUserStateLocked(userId); 561 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 562 if (DEBUG) { 563 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.info.getId() + ")"); 564 } 565 InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 566 567 // Set up a callback to send the session token. 568 ITvInputSessionCallback callback = new SessionCallback(sessionState, channels); 569 570 // Create a session. When failed, send a null token immediately. 571 try { 572 service.createSession(channels[1], callback, sessionState.info.getId()); 573 } catch (RemoteException e) { 574 Slog.e(TAG, "error in createSession", e); 575 removeSessionStateLocked(sessionToken, userId); 576 sendSessionTokenToClientLocked(sessionState.client, sessionState.info.getId(), null, 577 null, sessionState.seq); 578 } 579 channels[1].dispose(); 580 } 581 582 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 583 IBinder sessionToken, InputChannel channel, int seq) { 584 try { 585 client.onSessionCreated(inputId, sessionToken, channel, seq); 586 } catch (RemoteException e) { 587 Slog.e(TAG, "error in onSessionCreated", e); 588 } 589 } 590 591 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 592 SessionState sessionState = null; 593 try { 594 sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 595 if (sessionState.session != null) { 596 UserState userState = getUserStateLocked(userId); 597 if (sessionToken == userState.mainSessionToken) { 598 setMainLocked(sessionToken, false, callingUid, userId); 599 } 600 sessionState.session.release(); 601 } 602 } catch (RemoteException | SessionNotFoundException e) { 603 Slog.e(TAG, "error in releaseSession", e); 604 } finally { 605 if (sessionState != null) { 606 sessionState.session = null; 607 } 608 } 609 removeSessionStateLocked(sessionToken, userId); 610 } 611 612 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 613 UserState userState = getUserStateLocked(userId); 614 if (sessionToken == userState.mainSessionToken) { 615 if (DEBUG) { 616 Slog.d(TAG, "mainSessionToken=null"); 617 } 618 userState.mainSessionToken = null; 619 } 620 621 // Remove the session state from the global session state map of the current user. 622 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 623 624 if (sessionState == null) { 625 return; 626 } 627 628 // Also remove the session token from the session token list of the current client and 629 // service. 630 ClientState clientState = userState.clientStateMap.get(sessionState.client.asBinder()); 631 if (clientState != null) { 632 clientState.sessionTokens.remove(sessionToken); 633 if (clientState.isEmpty()) { 634 userState.clientStateMap.remove(sessionState.client.asBinder()); 635 } 636 } 637 638 TvInputInfo info = sessionState.info; 639 if (info != null) { 640 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 641 if (serviceState != null) { 642 serviceState.sessionTokens.remove(sessionToken); 643 } 644 } 645 updateServiceConnectionLocked(sessionState.info.getComponent(), userId); 646 647 // Log the end of watch. 648 SomeArgs args = SomeArgs.obtain(); 649 args.arg1 = sessionToken; 650 args.arg2 = System.currentTimeMillis(); 651 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_END, args).sendToTarget(); 652 } 653 654 private void setMainLocked(IBinder sessionToken, boolean isMain, int callingUid, int userId) { 655 try { 656 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 657 if (sessionState.hardwareSessionToken != null) { 658 sessionState = getSessionStateLocked(sessionState.hardwareSessionToken, 659 Process.SYSTEM_UID, userId); 660 } 661 ServiceState serviceState = getServiceStateLocked(sessionState.info.getComponent(), userId); 662 if (!serviceState.isHardware) { 663 return; 664 } 665 ITvInputSession session = getSessionLocked(sessionState); 666 session.setMain(isMain); 667 } catch (RemoteException | SessionNotFoundException e) { 668 Slog.e(TAG, "error in setMain", e); 669 } 670 } 671 672 private void notifyInputAddedLocked(UserState userState, String inputId) { 673 if (DEBUG) { 674 Slog.d(TAG, "notifyInputAddedLocked(inputId=" + inputId + ")"); 675 } 676 for (ITvInputManagerCallback callback : userState.callbackSet) { 677 try { 678 callback.onInputAdded(inputId); 679 } catch (RemoteException e) { 680 Slog.e(TAG, "failed to report added input to callback", e); 681 } 682 } 683 } 684 685 private void notifyInputRemovedLocked(UserState userState, String inputId) { 686 if (DEBUG) { 687 Slog.d(TAG, "notifyInputRemovedLocked(inputId=" + inputId + ")"); 688 } 689 for (ITvInputManagerCallback callback : userState.callbackSet) { 690 try { 691 callback.onInputRemoved(inputId); 692 } catch (RemoteException e) { 693 Slog.e(TAG, "failed to report removed input to callback", e); 694 } 695 } 696 } 697 698 private void notifyInputUpdatedLocked(UserState userState, String inputId) { 699 if (DEBUG) { 700 Slog.d(TAG, "notifyInputUpdatedLocked(inputId=" + inputId + ")"); 701 } 702 for (ITvInputManagerCallback callback : userState.callbackSet) { 703 try { 704 callback.onInputUpdated(inputId); 705 } catch (RemoteException e) { 706 Slog.e(TAG, "failed to report updated input to callback", e); 707 } 708 } 709 } 710 711 private void notifyInputStateChangedLocked(UserState userState, String inputId, 712 int state, ITvInputManagerCallback targetCallback) { 713 if (DEBUG) { 714 Slog.d(TAG, "notifyInputStateChangedLocked(inputId=" + inputId 715 + ", state=" + state + ")"); 716 } 717 if (targetCallback == null) { 718 for (ITvInputManagerCallback callback : userState.callbackSet) { 719 try { 720 callback.onInputStateChanged(inputId, state); 721 } catch (RemoteException e) { 722 Slog.e(TAG, "failed to report state change to callback", e); 723 } 724 } 725 } else { 726 try { 727 targetCallback.onInputStateChanged(inputId, state); 728 } catch (RemoteException e) { 729 Slog.e(TAG, "failed to report state change to callback", e); 730 } 731 } 732 } 733 734 private void setStateLocked(String inputId, int state, int userId) { 735 UserState userState = getUserStateLocked(userId); 736 TvInputState inputState = userState.inputMap.get(inputId); 737 ServiceState serviceState = userState.serviceStateMap.get(inputState.info.getComponent()); 738 int oldState = inputState.state; 739 inputState.state = state; 740 if (serviceState != null && serviceState.service == null 741 && shouldMaintainConnection(serviceState)) { 742 // We don't notify state change while reconnecting. It should remain disconnected. 743 return; 744 } 745 if (oldState != state) { 746 notifyInputStateChangedLocked(userState, inputId, state, null); 747 } 748 } 749 750 private final class BinderService extends ITvInputManager.Stub { 751 @Override 752 public List<TvInputInfo> getTvInputList(int userId) { 753 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 754 Binder.getCallingUid(), userId, "getTvInputList"); 755 final long identity = Binder.clearCallingIdentity(); 756 try { 757 synchronized (mLock) { 758 UserState userState = getUserStateLocked(resolvedUserId); 759 List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 760 for (TvInputState state : userState.inputMap.values()) { 761 inputList.add(state.info); 762 } 763 return inputList; 764 } 765 } finally { 766 Binder.restoreCallingIdentity(identity); 767 } 768 } 769 770 @Override 771 public TvInputInfo getTvInputInfo(String inputId, int userId) { 772 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 773 Binder.getCallingUid(), userId, "getTvInputInfo"); 774 final long identity = Binder.clearCallingIdentity(); 775 try { 776 synchronized (mLock) { 777 UserState userState = getUserStateLocked(resolvedUserId); 778 TvInputState state = userState.inputMap.get(inputId); 779 return state == null ? null : state.info; 780 } 781 } finally { 782 Binder.restoreCallingIdentity(identity); 783 } 784 } 785 786 @Override 787 public int getTvInputState(String inputId, int userId) { 788 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 789 Binder.getCallingUid(), userId, "getTvInputState"); 790 final long identity = Binder.clearCallingIdentity(); 791 try { 792 synchronized (mLock) { 793 UserState userState = getUserStateLocked(resolvedUserId); 794 TvInputState state = userState.inputMap.get(inputId); 795 return state == null ? INPUT_STATE_UNKNOWN : state.state; 796 } 797 } finally { 798 Binder.restoreCallingIdentity(identity); 799 } 800 } 801 802 @Override 803 public List<TvContentRatingSystemInfo> getTvContentRatingSystemList(int userId) { 804 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 805 Binder.getCallingUid(), userId, "getTvContentRatingSystemList"); 806 final long identity = Binder.clearCallingIdentity(); 807 try { 808 synchronized (mLock) { 809 UserState userState = getUserStateLocked(resolvedUserId); 810 return userState.contentRatingSystemList; 811 } 812 } finally { 813 Binder.restoreCallingIdentity(identity); 814 } 815 } 816 817 @Override 818 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 819 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 820 Binder.getCallingUid(), userId, "registerCallback"); 821 final long identity = Binder.clearCallingIdentity(); 822 try { 823 synchronized (mLock) { 824 final UserState userState = getUserStateLocked(resolvedUserId); 825 userState.callbackSet.add(callback); 826 try { 827 callback.asBinder().linkToDeath(new IBinder.DeathRecipient() { 828 @Override 829 public void binderDied() { 830 synchronized (mLock) { 831 if (userState.callbackSet != null) { 832 userState.callbackSet.remove(callback); 833 } 834 } 835 } 836 }, 0); 837 } catch (RemoteException e) { 838 Slog.e(TAG, "client process has already died", e); 839 } 840 } 841 } finally { 842 Binder.restoreCallingIdentity(identity); 843 } 844 } 845 846 @Override 847 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 848 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 849 Binder.getCallingUid(), userId, "unregisterCallback"); 850 final long identity = Binder.clearCallingIdentity(); 851 try { 852 synchronized (mLock) { 853 UserState userState = getUserStateLocked(resolvedUserId); 854 userState.callbackSet.remove(callback); 855 } 856 } finally { 857 Binder.restoreCallingIdentity(identity); 858 } 859 } 860 861 @Override 862 public boolean isParentalControlsEnabled(int userId) { 863 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 864 Binder.getCallingUid(), userId, "isParentalControlsEnabled"); 865 final long identity = Binder.clearCallingIdentity(); 866 try { 867 synchronized (mLock) { 868 UserState userState = getUserStateLocked(resolvedUserId); 869 return userState.persistentDataStore.isParentalControlsEnabled(); 870 } 871 } finally { 872 Binder.restoreCallingIdentity(identity); 873 } 874 } 875 876 @Override 877 public void setParentalControlsEnabled(boolean enabled, int userId) { 878 ensureParentalControlsPermission(); 879 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 880 Binder.getCallingUid(), userId, "setParentalControlsEnabled"); 881 final long identity = Binder.clearCallingIdentity(); 882 try { 883 synchronized (mLock) { 884 UserState userState = getUserStateLocked(resolvedUserId); 885 userState.persistentDataStore.setParentalControlsEnabled(enabled); 886 } 887 } finally { 888 Binder.restoreCallingIdentity(identity); 889 } 890 } 891 892 @Override 893 public boolean isRatingBlocked(String rating, int userId) { 894 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 895 Binder.getCallingUid(), userId, "isRatingBlocked"); 896 final long identity = Binder.clearCallingIdentity(); 897 try { 898 synchronized (mLock) { 899 UserState userState = getUserStateLocked(resolvedUserId); 900 return userState.persistentDataStore.isRatingBlocked( 901 TvContentRating.unflattenFromString(rating)); 902 } 903 } finally { 904 Binder.restoreCallingIdentity(identity); 905 } 906 } 907 908 @Override 909 public List<String> getBlockedRatings(int userId) { 910 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 911 Binder.getCallingUid(), userId, "getBlockedRatings"); 912 final long identity = Binder.clearCallingIdentity(); 913 try { 914 synchronized (mLock) { 915 UserState userState = getUserStateLocked(resolvedUserId); 916 List<String> ratings = new ArrayList<String>(); 917 for (TvContentRating rating 918 : userState.persistentDataStore.getBlockedRatings()) { 919 ratings.add(rating.flattenToString()); 920 } 921 return ratings; 922 } 923 } finally { 924 Binder.restoreCallingIdentity(identity); 925 } 926 } 927 928 @Override 929 public void addBlockedRating(String rating, int userId) { 930 ensureParentalControlsPermission(); 931 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 932 Binder.getCallingUid(), userId, "addBlockedRating"); 933 final long identity = Binder.clearCallingIdentity(); 934 try { 935 synchronized (mLock) { 936 UserState userState = getUserStateLocked(resolvedUserId); 937 userState.persistentDataStore.addBlockedRating( 938 TvContentRating.unflattenFromString(rating)); 939 } 940 } finally { 941 Binder.restoreCallingIdentity(identity); 942 } 943 } 944 945 @Override 946 public void removeBlockedRating(String rating, int userId) { 947 ensureParentalControlsPermission(); 948 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 949 Binder.getCallingUid(), userId, "removeBlockedRating"); 950 final long identity = Binder.clearCallingIdentity(); 951 try { 952 synchronized (mLock) { 953 UserState userState = getUserStateLocked(resolvedUserId); 954 userState.persistentDataStore.removeBlockedRating( 955 TvContentRating.unflattenFromString(rating)); 956 } 957 } finally { 958 Binder.restoreCallingIdentity(identity); 959 } 960 } 961 962 private void ensureParentalControlsPermission() { 963 if (mContext.checkCallingPermission( 964 android.Manifest.permission.MODIFY_PARENTAL_CONTROLS) 965 != PackageManager.PERMISSION_GRANTED) { 966 throw new SecurityException( 967 "The caller does not have parental controls permission"); 968 } 969 } 970 971 @Override 972 public void createSession(final ITvInputClient client, final String inputId, 973 int seq, int userId) { 974 final int callingUid = Binder.getCallingUid(); 975 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 976 userId, "createSession"); 977 final long identity = Binder.clearCallingIdentity(); 978 try { 979 synchronized (mLock) { 980 UserState userState = getUserStateLocked(resolvedUserId); 981 TvInputState inputState = userState.inputMap.get(inputId); 982 if (inputState == null) { 983 Slog.w(TAG, "Failed to find input state for inputId=" + inputId); 984 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 985 return; 986 } 987 TvInputInfo info = inputState.info; 988 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 989 if (serviceState == null) { 990 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 991 userState.serviceStateMap.put(info.getComponent(), serviceState); 992 } 993 // Send a null token immediately while reconnecting. 994 if (serviceState.reconnecting == true) { 995 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 996 return; 997 } 998 999 // Create a new session token and a session state. 1000 IBinder sessionToken = new Binder(); 1001 SessionState sessionState = new SessionState(sessionToken, info, client, 1002 seq, callingUid, resolvedUserId); 1003 1004 // Add them to the global session state map of the current user. 1005 userState.sessionStateMap.put(sessionToken, sessionState); 1006 1007 // Also, add them to the session state map of the current service. 1008 serviceState.sessionTokens.add(sessionToken); 1009 1010 if (serviceState.service != null) { 1011 createSessionInternalLocked(serviceState.service, sessionToken, 1012 resolvedUserId); 1013 } else { 1014 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 1015 } 1016 } 1017 } finally { 1018 Binder.restoreCallingIdentity(identity); 1019 } 1020 } 1021 1022 @Override 1023 public void releaseSession(IBinder sessionToken, int userId) { 1024 if (DEBUG) { 1025 Slog.d(TAG, "releaseSession(sessionToken=" + sessionToken + ")"); 1026 } 1027 final int callingUid = Binder.getCallingUid(); 1028 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1029 userId, "releaseSession"); 1030 final long identity = Binder.clearCallingIdentity(); 1031 try { 1032 synchronized (mLock) { 1033 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 1034 } 1035 } finally { 1036 Binder.restoreCallingIdentity(identity); 1037 } 1038 } 1039 1040 @Override 1041 public void setMainSession(IBinder sessionToken, int userId) { 1042 if (DEBUG) { 1043 Slog.d(TAG, "setMainSession(sessionToken=" + sessionToken + ")"); 1044 } 1045 final int callingUid = Binder.getCallingUid(); 1046 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1047 userId, "setMainSession"); 1048 final long identity = Binder.clearCallingIdentity(); 1049 try { 1050 synchronized (mLock) { 1051 UserState userState = getUserStateLocked(resolvedUserId); 1052 if (userState.mainSessionToken == sessionToken) { 1053 return; 1054 } 1055 if (DEBUG) { 1056 Slog.d(TAG, "mainSessionToken=" + sessionToken); 1057 } 1058 IBinder oldMainSessionToken = userState.mainSessionToken; 1059 userState.mainSessionToken = sessionToken; 1060 1061 // Inform the new main session first. 1062 // See {@link TvInputService.Session#onSetMain}. 1063 if (sessionToken != null) { 1064 setMainLocked(sessionToken, true, callingUid, userId); 1065 } 1066 if (oldMainSessionToken != null) { 1067 setMainLocked(oldMainSessionToken, false, Process.SYSTEM_UID, userId); 1068 } 1069 } 1070 } finally { 1071 Binder.restoreCallingIdentity(identity); 1072 } 1073 } 1074 1075 @Override 1076 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1077 final int callingUid = Binder.getCallingUid(); 1078 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1079 userId, "setSurface"); 1080 final long identity = Binder.clearCallingIdentity(); 1081 try { 1082 synchronized (mLock) { 1083 try { 1084 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1085 resolvedUserId); 1086 if (sessionState.hardwareSessionToken == null) { 1087 getSessionLocked(sessionState).setSurface(surface); 1088 } else { 1089 getSessionLocked(sessionState.hardwareSessionToken, 1090 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1091 } 1092 } catch (RemoteException | SessionNotFoundException e) { 1093 Slog.e(TAG, "error in setSurface", e); 1094 } 1095 } 1096 } finally { 1097 if (surface != null) { 1098 // surface is not used in TvInputManagerService. 1099 surface.release(); 1100 } 1101 Binder.restoreCallingIdentity(identity); 1102 } 1103 } 1104 1105 @Override 1106 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1107 int height, int userId) { 1108 final int callingUid = Binder.getCallingUid(); 1109 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1110 userId, "dispatchSurfaceChanged"); 1111 final long identity = Binder.clearCallingIdentity(); 1112 try { 1113 synchronized (mLock) { 1114 try { 1115 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1116 resolvedUserId); 1117 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, 1118 height); 1119 if (sessionState.hardwareSessionToken != null) { 1120 getSessionLocked(sessionState.hardwareSessionToken, Process.SYSTEM_UID, 1121 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1122 } 1123 } catch (RemoteException | SessionNotFoundException e) { 1124 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1125 } 1126 } 1127 } finally { 1128 Binder.restoreCallingIdentity(identity); 1129 } 1130 } 1131 1132 @Override 1133 public void setVolume(IBinder sessionToken, float volume, int userId) { 1134 final float REMOTE_VOLUME_ON = 1.0f; 1135 final float REMOTE_VOLUME_OFF = 0f; 1136 final int callingUid = Binder.getCallingUid(); 1137 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1138 userId, "setVolume"); 1139 final long identity = Binder.clearCallingIdentity(); 1140 try { 1141 synchronized (mLock) { 1142 try { 1143 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1144 resolvedUserId); 1145 getSessionLocked(sessionState).setVolume(volume); 1146 if (sessionState.hardwareSessionToken != null) { 1147 // Here, we let the hardware session know only whether volume is on or 1148 // off to prevent that the volume is controlled in the both side. 1149 getSessionLocked(sessionState.hardwareSessionToken, 1150 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1151 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1152 } 1153 } catch (RemoteException | SessionNotFoundException e) { 1154 Slog.e(TAG, "error in setVolume", e); 1155 } 1156 } 1157 } finally { 1158 Binder.restoreCallingIdentity(identity); 1159 } 1160 } 1161 1162 @Override 1163 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1164 final int callingUid = Binder.getCallingUid(); 1165 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1166 userId, "tune"); 1167 final long identity = Binder.clearCallingIdentity(); 1168 try { 1169 synchronized (mLock) { 1170 try { 1171 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1172 channelUri, params); 1173 if (TvContract.isChannelUriForPassthroughInput(channelUri)) { 1174 // Do not log the watch history for passthrough inputs. 1175 return; 1176 } 1177 1178 UserState userState = getUserStateLocked(resolvedUserId); 1179 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1180 1181 // Log the start of watch. 1182 SomeArgs args = SomeArgs.obtain(); 1183 args.arg1 = sessionState.info.getComponent().getPackageName(); 1184 args.arg2 = System.currentTimeMillis(); 1185 args.arg3 = ContentUris.parseId(channelUri); 1186 args.arg4 = params; 1187 args.arg5 = sessionToken; 1188 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_START, args) 1189 .sendToTarget(); 1190 } catch (RemoteException | SessionNotFoundException e) { 1191 Slog.e(TAG, "error in tune", e); 1192 return; 1193 } 1194 } 1195 } finally { 1196 Binder.restoreCallingIdentity(identity); 1197 } 1198 } 1199 1200 @Override 1201 public void requestUnblockContent( 1202 IBinder sessionToken, String unblockedRating, int userId) { 1203 final int callingUid = Binder.getCallingUid(); 1204 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1205 userId, "unblockContent"); 1206 final long identity = Binder.clearCallingIdentity(); 1207 try { 1208 synchronized (mLock) { 1209 try { 1210 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1211 .requestUnblockContent(unblockedRating); 1212 } catch (RemoteException | SessionNotFoundException e) { 1213 Slog.e(TAG, "error in requestUnblockContent", e); 1214 } 1215 } 1216 } finally { 1217 Binder.restoreCallingIdentity(identity); 1218 } 1219 } 1220 1221 @Override 1222 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1223 final int callingUid = Binder.getCallingUid(); 1224 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1225 userId, "setCaptionEnabled"); 1226 final long identity = Binder.clearCallingIdentity(); 1227 try { 1228 synchronized (mLock) { 1229 try { 1230 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1231 .setCaptionEnabled(enabled); 1232 } catch (RemoteException | SessionNotFoundException e) { 1233 Slog.e(TAG, "error in setCaptionEnabled", e); 1234 } 1235 } 1236 } finally { 1237 Binder.restoreCallingIdentity(identity); 1238 } 1239 } 1240 1241 @Override 1242 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1243 final int callingUid = Binder.getCallingUid(); 1244 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1245 userId, "selectTrack"); 1246 final long identity = Binder.clearCallingIdentity(); 1247 try { 1248 synchronized (mLock) { 1249 try { 1250 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1251 type, trackId); 1252 } catch (RemoteException | SessionNotFoundException e) { 1253 Slog.e(TAG, "error in selectTrack", e); 1254 } 1255 } 1256 } finally { 1257 Binder.restoreCallingIdentity(identity); 1258 } 1259 } 1260 1261 @Override 1262 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1263 int userId) { 1264 final int callingUid = Binder.getCallingUid(); 1265 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1266 userId, "sendAppPrivateCommand"); 1267 final long identity = Binder.clearCallingIdentity(); 1268 try { 1269 synchronized (mLock) { 1270 try { 1271 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1272 .appPrivateCommand(command, data); 1273 } catch (RemoteException | SessionNotFoundException e) { 1274 Slog.e(TAG, "error in appPrivateCommand", e); 1275 } 1276 } 1277 } finally { 1278 Binder.restoreCallingIdentity(identity); 1279 } 1280 } 1281 1282 @Override 1283 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1284 int userId) { 1285 final int callingUid = Binder.getCallingUid(); 1286 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1287 userId, "createOverlayView"); 1288 final long identity = Binder.clearCallingIdentity(); 1289 try { 1290 synchronized (mLock) { 1291 try { 1292 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1293 .createOverlayView(windowToken, frame); 1294 } catch (RemoteException | SessionNotFoundException e) { 1295 Slog.e(TAG, "error in createOverlayView", e); 1296 } 1297 } 1298 } finally { 1299 Binder.restoreCallingIdentity(identity); 1300 } 1301 } 1302 1303 @Override 1304 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1305 final int callingUid = Binder.getCallingUid(); 1306 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1307 userId, "relayoutOverlayView"); 1308 final long identity = Binder.clearCallingIdentity(); 1309 try { 1310 synchronized (mLock) { 1311 try { 1312 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1313 .relayoutOverlayView(frame); 1314 } catch (RemoteException | SessionNotFoundException e) { 1315 Slog.e(TAG, "error in relayoutOverlayView", e); 1316 } 1317 } 1318 } finally { 1319 Binder.restoreCallingIdentity(identity); 1320 } 1321 } 1322 1323 @Override 1324 public void removeOverlayView(IBinder sessionToken, int userId) { 1325 final int callingUid = Binder.getCallingUid(); 1326 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1327 userId, "removeOverlayView"); 1328 final long identity = Binder.clearCallingIdentity(); 1329 try { 1330 synchronized (mLock) { 1331 try { 1332 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1333 .removeOverlayView(); 1334 } catch (RemoteException | SessionNotFoundException e) { 1335 Slog.e(TAG, "error in removeOverlayView", e); 1336 } 1337 } 1338 } finally { 1339 Binder.restoreCallingIdentity(identity); 1340 } 1341 } 1342 1343 @Override 1344 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1345 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1346 != PackageManager.PERMISSION_GRANTED) { 1347 return null; 1348 } 1349 1350 final long identity = Binder.clearCallingIdentity(); 1351 try { 1352 return mTvInputHardwareManager.getHardwareList(); 1353 } finally { 1354 Binder.restoreCallingIdentity(identity); 1355 } 1356 } 1357 1358 @Override 1359 public ITvInputHardware acquireTvInputHardware(int deviceId, 1360 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1361 throws RemoteException { 1362 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1363 != PackageManager.PERMISSION_GRANTED) { 1364 return null; 1365 } 1366 1367 final long identity = Binder.clearCallingIdentity(); 1368 final int callingUid = Binder.getCallingUid(); 1369 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1370 userId, "acquireTvInputHardware"); 1371 try { 1372 return mTvInputHardwareManager.acquireHardware( 1373 deviceId, callback, info, callingUid, resolvedUserId); 1374 } finally { 1375 Binder.restoreCallingIdentity(identity); 1376 } 1377 } 1378 1379 @Override 1380 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1381 throws RemoteException { 1382 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1383 != PackageManager.PERMISSION_GRANTED) { 1384 return; 1385 } 1386 1387 final long identity = Binder.clearCallingIdentity(); 1388 final int callingUid = Binder.getCallingUid(); 1389 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1390 userId, "releaseTvInputHardware"); 1391 try { 1392 mTvInputHardwareManager.releaseHardware( 1393 deviceId, hardware, callingUid, resolvedUserId); 1394 } finally { 1395 Binder.restoreCallingIdentity(identity); 1396 } 1397 } 1398 1399 @Override 1400 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1401 throws RemoteException { 1402 if (mContext.checkCallingPermission( 1403 android.Manifest.permission.CAPTURE_TV_INPUT) 1404 != PackageManager.PERMISSION_GRANTED) { 1405 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1406 } 1407 1408 final long identity = Binder.clearCallingIdentity(); 1409 final int callingUid = Binder.getCallingUid(); 1410 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1411 userId, "getAvailableTvStreamConfigList"); 1412 try { 1413 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1414 inputId, callingUid, resolvedUserId); 1415 } finally { 1416 Binder.restoreCallingIdentity(identity); 1417 } 1418 } 1419 1420 @Override 1421 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1422 int userId) 1423 throws RemoteException { 1424 if (mContext.checkCallingPermission( 1425 android.Manifest.permission.CAPTURE_TV_INPUT) 1426 != PackageManager.PERMISSION_GRANTED) { 1427 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1428 } 1429 1430 final long identity = Binder.clearCallingIdentity(); 1431 final int callingUid = Binder.getCallingUid(); 1432 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1433 userId, "captureFrame"); 1434 try { 1435 String hardwareInputId = null; 1436 synchronized (mLock) { 1437 UserState userState = getUserStateLocked(resolvedUserId); 1438 if (userState.inputMap.get(inputId) == null) { 1439 Slog.e(TAG, "input not found for " + inputId); 1440 return false; 1441 } 1442 for (SessionState sessionState : userState.sessionStateMap.values()) { 1443 if (sessionState.info.getId().equals(inputId) 1444 && sessionState.hardwareSessionToken != null) { 1445 hardwareInputId = userState.sessionStateMap.get( 1446 sessionState.hardwareSessionToken).info.getId(); 1447 break; 1448 } 1449 } 1450 } 1451 return mTvInputHardwareManager.captureFrame( 1452 (hardwareInputId != null) ? hardwareInputId : inputId, 1453 surface, config, callingUid, resolvedUserId); 1454 } finally { 1455 Binder.restoreCallingIdentity(identity); 1456 } 1457 } 1458 1459 @Override 1460 public boolean isSingleSessionActive(int userId) throws RemoteException { 1461 final long identity = Binder.clearCallingIdentity(); 1462 final int callingUid = Binder.getCallingUid(); 1463 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1464 userId, "isSingleSessionActive"); 1465 try { 1466 synchronized (mLock) { 1467 UserState userState = getUserStateLocked(resolvedUserId); 1468 if (userState.sessionStateMap.size() == 1) { 1469 return true; 1470 } 1471 else if (userState.sessionStateMap.size() == 2) { 1472 SessionState[] sessionStates = userState.sessionStateMap.values().toArray( 1473 new SessionState[0]); 1474 // Check if there is a wrapper input. 1475 if (sessionStates[0].hardwareSessionToken != null 1476 || sessionStates[1].hardwareSessionToken != null) { 1477 return true; 1478 } 1479 } 1480 return false; 1481 } 1482 } finally { 1483 Binder.restoreCallingIdentity(identity); 1484 } 1485 } 1486 1487 @Override 1488 @SuppressWarnings("resource") 1489 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1490 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1491 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1492 != PackageManager.PERMISSION_GRANTED) { 1493 pw.println("Permission Denial: can't dump TvInputManager from pid=" 1494 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); 1495 return; 1496 } 1497 1498 synchronized (mLock) { 1499 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1500 pw.increaseIndent(); 1501 for (int i = 0; i < mUserStates.size(); i++) { 1502 int userId = mUserStates.keyAt(i); 1503 pw.println(Integer.valueOf(userId)); 1504 } 1505 pw.decreaseIndent(); 1506 1507 for (int i = 0; i < mUserStates.size(); i++) { 1508 int userId = mUserStates.keyAt(i); 1509 UserState userState = getUserStateLocked(userId); 1510 pw.println("UserState (" + userId + "):"); 1511 pw.increaseIndent(); 1512 1513 pw.println("inputMap: inputId -> TvInputState"); 1514 pw.increaseIndent(); 1515 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 1516 pw.println(entry.getKey() + ": " + entry.getValue()); 1517 } 1518 pw.decreaseIndent(); 1519 1520 pw.println("packageSet:"); 1521 pw.increaseIndent(); 1522 for (String packageName : userState.packageSet) { 1523 pw.println(packageName); 1524 } 1525 pw.decreaseIndent(); 1526 1527 pw.println("clientStateMap: ITvInputClient -> ClientState"); 1528 pw.increaseIndent(); 1529 for (Map.Entry<IBinder, ClientState> entry : 1530 userState.clientStateMap.entrySet()) { 1531 ClientState client = entry.getValue(); 1532 pw.println(entry.getKey() + ": " + client); 1533 1534 pw.increaseIndent(); 1535 1536 pw.println("sessionTokens:"); 1537 pw.increaseIndent(); 1538 for (IBinder token : client.sessionTokens) { 1539 pw.println("" + token); 1540 } 1541 pw.decreaseIndent(); 1542 1543 pw.println("clientTokens: " + client.clientToken); 1544 pw.println("userId: " + client.userId); 1545 1546 pw.decreaseIndent(); 1547 } 1548 pw.decreaseIndent(); 1549 1550 pw.println("serviceStateMap: ComponentName -> ServiceState"); 1551 pw.increaseIndent(); 1552 for (Map.Entry<ComponentName, ServiceState> entry : 1553 userState.serviceStateMap.entrySet()) { 1554 ServiceState service = entry.getValue(); 1555 pw.println(entry.getKey() + ": " + service); 1556 1557 pw.increaseIndent(); 1558 1559 pw.println("sessionTokens:"); 1560 pw.increaseIndent(); 1561 for (IBinder token : service.sessionTokens) { 1562 pw.println("" + token); 1563 } 1564 pw.decreaseIndent(); 1565 1566 pw.println("service: " + service.service); 1567 pw.println("callback: " + service.callback); 1568 pw.println("bound: " + service.bound); 1569 pw.println("reconnecting: " + service.reconnecting); 1570 1571 pw.decreaseIndent(); 1572 } 1573 pw.decreaseIndent(); 1574 1575 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 1576 pw.increaseIndent(); 1577 for (Map.Entry<IBinder, SessionState> entry : 1578 userState.sessionStateMap.entrySet()) { 1579 SessionState session = entry.getValue(); 1580 pw.println(entry.getKey() + ": " + session); 1581 1582 pw.increaseIndent(); 1583 pw.println("info: " + session.info); 1584 pw.println("client: " + session.client); 1585 pw.println("seq: " + session.seq); 1586 pw.println("callingUid: " + session.callingUid); 1587 pw.println("userId: " + session.userId); 1588 pw.println("sessionToken: " + session.sessionToken); 1589 pw.println("session: " + session.session); 1590 pw.println("logUri: " + session.logUri); 1591 pw.println("hardwareSessionToken: " + session.hardwareSessionToken); 1592 pw.decreaseIndent(); 1593 } 1594 pw.decreaseIndent(); 1595 1596 pw.println("callbackSet:"); 1597 pw.increaseIndent(); 1598 for (ITvInputManagerCallback callback : userState.callbackSet) { 1599 pw.println(callback.toString()); 1600 } 1601 pw.decreaseIndent(); 1602 1603 pw.println("mainSessionToken: " + userState.mainSessionToken); 1604 pw.decreaseIndent(); 1605 } 1606 } 1607 } 1608 } 1609 1610 private static final class UserState { 1611 // A mapping from the TV input id to its TvInputState. 1612 private Map<String, TvInputState> inputMap = new HashMap<String, TvInputState>(); 1613 1614 // A set of all TV input packages. 1615 private final Set<String> packageSet = new HashSet<String>(); 1616 1617 // A list of all TV content rating systems defined. 1618 private final List<TvContentRatingSystemInfo> 1619 contentRatingSystemList = new ArrayList<TvContentRatingSystemInfo>(); 1620 1621 // A mapping from the token of a client to its state. 1622 private final Map<IBinder, ClientState> clientStateMap = 1623 new HashMap<IBinder, ClientState>(); 1624 1625 // A mapping from the name of a TV input service to its state. 1626 private final Map<ComponentName, ServiceState> serviceStateMap = 1627 new HashMap<ComponentName, ServiceState>(); 1628 1629 // A mapping from the token of a TV input session to its state. 1630 private final Map<IBinder, SessionState> sessionStateMap = 1631 new HashMap<IBinder, SessionState>(); 1632 1633 // A set of callbacks. 1634 private final Set<ITvInputManagerCallback> callbackSet = 1635 new HashSet<ITvInputManagerCallback>(); 1636 1637 // The token of a "main" TV input session. 1638 private IBinder mainSessionToken = null; 1639 1640 // Persistent data store for all internal settings maintained by the TV input manager 1641 // service. 1642 private final PersistentDataStore persistentDataStore; 1643 1644 private UserState(Context context, int userId) { 1645 persistentDataStore = new PersistentDataStore(context, userId); 1646 } 1647 } 1648 1649 private final class ClientState implements IBinder.DeathRecipient { 1650 private final List<IBinder> sessionTokens = new ArrayList<IBinder>(); 1651 1652 private IBinder clientToken; 1653 private final int userId; 1654 1655 ClientState(IBinder clientToken, int userId) { 1656 this.clientToken = clientToken; 1657 this.userId = userId; 1658 } 1659 1660 public boolean isEmpty() { 1661 return sessionTokens.isEmpty(); 1662 } 1663 1664 @Override 1665 public void binderDied() { 1666 synchronized (mLock) { 1667 UserState userState = getUserStateLocked(userId); 1668 // DO NOT remove the client state of clientStateMap in this method. It will be 1669 // removed in releaseSessionLocked(). 1670 ClientState clientState = userState.clientStateMap.get(clientToken); 1671 if (clientState != null) { 1672 while (clientState.sessionTokens.size() > 0) { 1673 releaseSessionLocked( 1674 clientState.sessionTokens.get(0), Process.SYSTEM_UID, userId); 1675 } 1676 } 1677 clientToken = null; 1678 } 1679 } 1680 } 1681 1682 private final class ServiceState { 1683 private final List<IBinder> sessionTokens = new ArrayList<IBinder>(); 1684 private final ServiceConnection connection; 1685 private final ComponentName component; 1686 private final boolean isHardware; 1687 private final List<TvInputInfo> inputList = new ArrayList<TvInputInfo>(); 1688 1689 private ITvInputService service; 1690 private ServiceCallback callback; 1691 private boolean bound; 1692 private boolean reconnecting; 1693 1694 private ServiceState(ComponentName component, int userId) { 1695 this.component = component; 1696 this.connection = new InputServiceConnection(component, userId); 1697 this.isHardware = hasHardwarePermission(mContext.getPackageManager(), component); 1698 } 1699 } 1700 1701 private static final class TvInputState { 1702 // A TvInputInfo object which represents the TV input. 1703 private TvInputInfo info; 1704 1705 // The state of TV input. Connected by default. 1706 private int state = INPUT_STATE_CONNECTED; 1707 1708 @Override 1709 public String toString() { 1710 return "info: " + info + "; state: " + state; 1711 } 1712 } 1713 1714 private final class SessionState implements IBinder.DeathRecipient { 1715 private final TvInputInfo info; 1716 private final ITvInputClient client; 1717 private final int seq; 1718 private final int callingUid; 1719 private final int userId; 1720 private final IBinder sessionToken; 1721 private ITvInputSession session; 1722 private Uri logUri; 1723 // Not null if this session represents an external device connected to a hardware TV input. 1724 private IBinder hardwareSessionToken; 1725 1726 private SessionState(IBinder sessionToken, TvInputInfo info, ITvInputClient client, 1727 int seq, int callingUid, int userId) { 1728 this.sessionToken = sessionToken; 1729 this.info = info; 1730 this.client = client; 1731 this.seq = seq; 1732 this.callingUid = callingUid; 1733 this.userId = userId; 1734 } 1735 1736 @Override 1737 public void binderDied() { 1738 synchronized (mLock) { 1739 session = null; 1740 if (client != null) { 1741 try { 1742 client.onSessionReleased(seq); 1743 } catch(RemoteException e) { 1744 Slog.e(TAG, "error in onSessionReleased", e); 1745 } 1746 } 1747 // If there are any other sessions based on this session, they should be released. 1748 UserState userState = getUserStateLocked(userId); 1749 for (SessionState sessionState : userState.sessionStateMap.values()) { 1750 if (sessionToken == sessionState.hardwareSessionToken) { 1751 releaseSessionLocked(sessionState.sessionToken, Process.SYSTEM_UID, 1752 userId); 1753 try { 1754 sessionState.client.onSessionReleased(sessionState.seq); 1755 } catch (RemoteException e) { 1756 Slog.e(TAG, "error in onSessionReleased", e); 1757 } 1758 } 1759 } 1760 removeSessionStateLocked(sessionToken, userId); 1761 } 1762 } 1763 } 1764 1765 private final class InputServiceConnection implements ServiceConnection { 1766 private final ComponentName mComponent; 1767 private final int mUserId; 1768 1769 private InputServiceConnection(ComponentName component, int userId) { 1770 mComponent = component; 1771 mUserId = userId; 1772 } 1773 1774 @Override 1775 public void onServiceConnected(ComponentName component, IBinder service) { 1776 if (DEBUG) { 1777 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 1778 } 1779 synchronized (mLock) { 1780 UserState userState = getUserStateLocked(mUserId); 1781 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1782 serviceState.service = ITvInputService.Stub.asInterface(service); 1783 1784 // Register a callback, if we need to. 1785 if (serviceState.isHardware && serviceState.callback == null) { 1786 serviceState.callback = new ServiceCallback(mComponent, mUserId); 1787 try { 1788 serviceState.service.registerCallback(serviceState.callback); 1789 } catch (RemoteException e) { 1790 Slog.e(TAG, "error in registerCallback", e); 1791 } 1792 } 1793 1794 // And create sessions, if any. 1795 for (IBinder sessionToken : serviceState.sessionTokens) { 1796 createSessionInternalLocked(serviceState.service, sessionToken, mUserId); 1797 } 1798 1799 for (TvInputState inputState : userState.inputMap.values()) { 1800 if (inputState.info.getComponent().equals(component) 1801 && inputState.state != INPUT_STATE_DISCONNECTED) { 1802 notifyInputStateChangedLocked(userState, inputState.info.getId(), 1803 inputState.state, null); 1804 } 1805 } 1806 1807 if (serviceState.isHardware) { 1808 List<TvInputHardwareInfo> hardwareInfoList = 1809 mTvInputHardwareManager.getHardwareList(); 1810 for (TvInputHardwareInfo hardwareInfo : hardwareInfoList) { 1811 try { 1812 serviceState.service.notifyHardwareAdded(hardwareInfo); 1813 } catch (RemoteException e) { 1814 Slog.e(TAG, "error in notifyHardwareAdded", e); 1815 } 1816 } 1817 1818 List<HdmiDeviceInfo> deviceInfoList = 1819 mTvInputHardwareManager.getHdmiDeviceList(); 1820 for (HdmiDeviceInfo deviceInfo : deviceInfoList) { 1821 try { 1822 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 1823 } catch (RemoteException e) { 1824 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 1825 } 1826 } 1827 } 1828 } 1829 } 1830 1831 @Override 1832 public void onServiceDisconnected(ComponentName component) { 1833 if (DEBUG) { 1834 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 1835 } 1836 if (!mComponent.equals(component)) { 1837 throw new IllegalArgumentException("Mismatched ComponentName: " 1838 + mComponent + " (expected), " + component + " (actual)."); 1839 } 1840 synchronized (mLock) { 1841 UserState userState = getUserStateLocked(mUserId); 1842 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 1843 if (serviceState != null) { 1844 serviceState.reconnecting = true; 1845 serviceState.bound = false; 1846 serviceState.service = null; 1847 serviceState.callback = null; 1848 1849 abortPendingCreateSessionRequestsLocked(serviceState, null, mUserId); 1850 1851 for (TvInputState inputState : userState.inputMap.values()) { 1852 if (inputState.info.getComponent().equals(component)) { 1853 notifyInputStateChangedLocked(userState, inputState.info.getId(), 1854 INPUT_STATE_DISCONNECTED, null); 1855 } 1856 } 1857 } 1858 } 1859 } 1860 } 1861 1862 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 1863 private final ComponentName mComponent; 1864 private final int mUserId; 1865 1866 ServiceCallback(ComponentName component, int userId) { 1867 mComponent = component; 1868 mUserId = userId; 1869 } 1870 1871 private void ensureHardwarePermission() { 1872 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1873 != PackageManager.PERMISSION_GRANTED) { 1874 throw new SecurityException("The caller does not have hardware permission"); 1875 } 1876 } 1877 1878 private void ensureValidInput(TvInputInfo inputInfo) { 1879 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 1880 throw new IllegalArgumentException("Invalid TvInputInfo"); 1881 } 1882 } 1883 1884 private void addTvInputLocked(TvInputInfo inputInfo) { 1885 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 1886 serviceState.inputList.add(inputInfo); 1887 buildTvInputListLocked(mUserId, null); 1888 } 1889 1890 @Override 1891 public void addHardwareTvInput(int deviceId, TvInputInfo inputInfo) { 1892 ensureHardwarePermission(); 1893 ensureValidInput(inputInfo); 1894 synchronized (mLock) { 1895 mTvInputHardwareManager.addHardwareTvInput(deviceId, inputInfo); 1896 addTvInputLocked(inputInfo); 1897 } 1898 } 1899 1900 @Override 1901 public void addHdmiTvInput(int id, TvInputInfo inputInfo) { 1902 ensureHardwarePermission(); 1903 ensureValidInput(inputInfo); 1904 synchronized (mLock) { 1905 mTvInputHardwareManager.addHdmiTvInput(id, inputInfo); 1906 addTvInputLocked(inputInfo); 1907 } 1908 } 1909 1910 @Override 1911 public void removeTvInput(String inputId) { 1912 ensureHardwarePermission(); 1913 synchronized (mLock) { 1914 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 1915 boolean removed = false; 1916 for (Iterator<TvInputInfo> it = serviceState.inputList.iterator(); 1917 it.hasNext(); ) { 1918 if (it.next().getId().equals(inputId)) { 1919 it.remove(); 1920 removed = true; 1921 break; 1922 } 1923 } 1924 if (removed) { 1925 buildTvInputListLocked(mUserId, null); 1926 mTvInputHardwareManager.removeTvInput(inputId); 1927 } else { 1928 Slog.e(TAG, "failed to remove input " + inputId); 1929 } 1930 } 1931 } 1932 } 1933 1934 private final class SessionCallback extends ITvInputSessionCallback.Stub { 1935 private final SessionState mSessionState; 1936 private final InputChannel[] mChannels; 1937 1938 SessionCallback(SessionState sessionState, InputChannel[] channels) { 1939 mSessionState = sessionState; 1940 mChannels = channels; 1941 } 1942 1943 @Override 1944 public void onSessionCreated(ITvInputSession session, IBinder harewareSessionToken) { 1945 if (DEBUG) { 1946 Slog.d(TAG, "onSessionCreated(inputId=" + mSessionState.info.getId() + ")"); 1947 } 1948 synchronized (mLock) { 1949 mSessionState.session = session; 1950 mSessionState.hardwareSessionToken = harewareSessionToken; 1951 if (session != null && addSessionTokenToClientStateLocked(session)) { 1952 sendSessionTokenToClientLocked(mSessionState.client, 1953 mSessionState.info.getId(), mSessionState.sessionToken, mChannels[0], 1954 mSessionState.seq); 1955 } else { 1956 removeSessionStateLocked(mSessionState.sessionToken, mSessionState.userId); 1957 sendSessionTokenToClientLocked(mSessionState.client, 1958 mSessionState.info.getId(), null, null, mSessionState.seq); 1959 } 1960 mChannels[0].dispose(); 1961 } 1962 } 1963 1964 private boolean addSessionTokenToClientStateLocked(ITvInputSession session) { 1965 try { 1966 session.asBinder().linkToDeath(mSessionState, 0); 1967 } catch (RemoteException e) { 1968 Slog.e(TAG, "session process has already died", e); 1969 return false; 1970 } 1971 1972 IBinder clientToken = mSessionState.client.asBinder(); 1973 UserState userState = getUserStateLocked(mSessionState.userId); 1974 ClientState clientState = userState.clientStateMap.get(clientToken); 1975 if (clientState == null) { 1976 clientState = new ClientState(clientToken, mSessionState.userId); 1977 try { 1978 clientToken.linkToDeath(clientState, 0); 1979 } catch (RemoteException e) { 1980 Slog.e(TAG, "client process has already died", e); 1981 return false; 1982 } 1983 userState.clientStateMap.put(clientToken, clientState); 1984 } 1985 clientState.sessionTokens.add(mSessionState.sessionToken); 1986 return true; 1987 } 1988 1989 @Override 1990 public void onChannelRetuned(Uri channelUri) { 1991 synchronized (mLock) { 1992 if (DEBUG) { 1993 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 1994 } 1995 if (mSessionState.session == null || mSessionState.client == null) { 1996 return; 1997 } 1998 try { 1999 // TODO: Consider adding this channel change in the watch log. When we do 2000 // that, how we can protect the watch log from malicious tv inputs should 2001 // be addressed. e.g. add a field which represents where the channel change 2002 // originated from. 2003 mSessionState.client.onChannelRetuned(channelUri, mSessionState.seq); 2004 } catch (RemoteException e) { 2005 Slog.e(TAG, "error in onChannelRetuned", e); 2006 } 2007 } 2008 } 2009 2010 @Override 2011 public void onTracksChanged(List<TvTrackInfo> tracks) { 2012 synchronized (mLock) { 2013 if (DEBUG) { 2014 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 2015 } 2016 if (mSessionState.session == null || mSessionState.client == null) { 2017 return; 2018 } 2019 try { 2020 mSessionState.client.onTracksChanged(tracks, mSessionState.seq); 2021 } catch (RemoteException e) { 2022 Slog.e(TAG, "error in onTracksChanged", e); 2023 } 2024 } 2025 } 2026 2027 @Override 2028 public void onTrackSelected(int type, String trackId) { 2029 synchronized (mLock) { 2030 if (DEBUG) { 2031 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 2032 } 2033 if (mSessionState.session == null || mSessionState.client == null) { 2034 return; 2035 } 2036 try { 2037 mSessionState.client.onTrackSelected(type, trackId, mSessionState.seq); 2038 } catch (RemoteException e) { 2039 Slog.e(TAG, "error in onTrackSelected", e); 2040 } 2041 } 2042 } 2043 2044 @Override 2045 public void onVideoAvailable() { 2046 synchronized (mLock) { 2047 if (DEBUG) { 2048 Slog.d(TAG, "onVideoAvailable()"); 2049 } 2050 if (mSessionState.session == null || mSessionState.client == null) { 2051 return; 2052 } 2053 try { 2054 mSessionState.client.onVideoAvailable(mSessionState.seq); 2055 } catch (RemoteException e) { 2056 Slog.e(TAG, "error in onVideoAvailable", e); 2057 } 2058 } 2059 } 2060 2061 @Override 2062 public void onVideoUnavailable(int reason) { 2063 synchronized (mLock) { 2064 if (DEBUG) { 2065 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 2066 } 2067 if (mSessionState.session == null || mSessionState.client == null) { 2068 return; 2069 } 2070 try { 2071 mSessionState.client.onVideoUnavailable(reason, mSessionState.seq); 2072 } catch (RemoteException e) { 2073 Slog.e(TAG, "error in onVideoUnavailable", e); 2074 } 2075 } 2076 } 2077 2078 @Override 2079 public void onContentAllowed() { 2080 synchronized (mLock) { 2081 if (DEBUG) { 2082 Slog.d(TAG, "onContentAllowed()"); 2083 } 2084 if (mSessionState.session == null || mSessionState.client == null) { 2085 return; 2086 } 2087 try { 2088 mSessionState.client.onContentAllowed(mSessionState.seq); 2089 } catch (RemoteException e) { 2090 Slog.e(TAG, "error in onContentAllowed", e); 2091 } 2092 } 2093 } 2094 2095 @Override 2096 public void onContentBlocked(String rating) { 2097 synchronized (mLock) { 2098 if (DEBUG) { 2099 Slog.d(TAG, "onContentBlocked()"); 2100 } 2101 if (mSessionState.session == null || mSessionState.client == null) { 2102 return; 2103 } 2104 try { 2105 mSessionState.client.onContentBlocked(rating, mSessionState.seq); 2106 } catch (RemoteException e) { 2107 Slog.e(TAG, "error in onContentBlocked", e); 2108 } 2109 } 2110 } 2111 2112 @Override 2113 public void onLayoutSurface(int left, int top, int right, int bottom) { 2114 synchronized (mLock) { 2115 if (DEBUG) { 2116 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 2117 + ", right=" + right + ", bottom=" + bottom + ",)"); 2118 } 2119 if (mSessionState.session == null || mSessionState.client == null) { 2120 return; 2121 } 2122 try { 2123 mSessionState.client.onLayoutSurface(left, top, right, bottom, 2124 mSessionState.seq); 2125 } catch (RemoteException e) { 2126 Slog.e(TAG, "error in onLayoutSurface", e); 2127 } 2128 } 2129 } 2130 2131 @Override 2132 public void onSessionEvent(String eventType, Bundle eventArgs) { 2133 synchronized (mLock) { 2134 if (DEBUG) { 2135 Slog.d(TAG, "onEvent(what=" + eventType + ", data=" + eventArgs + ")"); 2136 } 2137 if (mSessionState.session == null || mSessionState.client == null) { 2138 return; 2139 } 2140 try { 2141 mSessionState.client.onSessionEvent(eventType, eventArgs, mSessionState.seq); 2142 } catch (RemoteException e) { 2143 Slog.e(TAG, "error in onSessionEvent", e); 2144 } 2145 } 2146 } 2147 } 2148 2149 private static final class WatchLogHandler extends Handler { 2150 // There are only two kinds of watch events that can happen on the system: 2151 // 1. The current TV input session is tuned to a new channel. 2152 // 2. The session is released for some reason. 2153 // The former indicates the end of the previous log entry, if any, followed by the start of 2154 // a new entry. The latter indicates the end of the most recent entry for the given session. 2155 // Here the system supplies the database the smallest set of information only that is 2156 // sufficient to consolidate the log entries while minimizing database operations in the 2157 // system service. 2158 private static final int MSG_LOG_WATCH_START = 1; 2159 private static final int MSG_LOG_WATCH_END = 2; 2160 2161 private final ContentResolver mContentResolver; 2162 2163 public WatchLogHandler(ContentResolver contentResolver, Looper looper) { 2164 super(looper); 2165 mContentResolver = contentResolver; 2166 } 2167 2168 @Override 2169 public void handleMessage(Message msg) { 2170 switch (msg.what) { 2171 case MSG_LOG_WATCH_START: { 2172 SomeArgs args = (SomeArgs) msg.obj; 2173 String packageName = (String) args.arg1; 2174 long watchStartTime = (long) args.arg2; 2175 long channelId = (long) args.arg3; 2176 Bundle tuneParams = (Bundle) args.arg4; 2177 IBinder sessionToken = (IBinder) args.arg5; 2178 2179 ContentValues values = new ContentValues(); 2180 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 2181 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2182 watchStartTime); 2183 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2184 if (tuneParams != null) { 2185 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_TUNE_PARAMS, 2186 encodeTuneParams(tuneParams)); 2187 } 2188 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2189 sessionToken.toString()); 2190 2191 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2192 args.recycle(); 2193 return; 2194 } 2195 case MSG_LOG_WATCH_END: { 2196 SomeArgs args = (SomeArgs) msg.obj; 2197 IBinder sessionToken = (IBinder) args.arg1; 2198 long watchEndTime = (long) args.arg2; 2199 2200 ContentValues values = new ContentValues(); 2201 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2202 watchEndTime); 2203 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2204 sessionToken.toString()); 2205 2206 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2207 args.recycle(); 2208 return; 2209 } 2210 default: { 2211 Slog.w(TAG, "Unhandled message code: " + msg.what); 2212 return; 2213 } 2214 } 2215 } 2216 2217 private String encodeTuneParams(Bundle tuneParams) { 2218 StringBuilder builder = new StringBuilder(); 2219 Set<String> keySet = tuneParams.keySet(); 2220 Iterator<String> it = keySet.iterator(); 2221 while (it.hasNext()) { 2222 String key = it.next(); 2223 Object value = tuneParams.get(key); 2224 if (value == null) { 2225 continue; 2226 } 2227 builder.append(replaceEscapeCharacters(key)); 2228 builder.append("="); 2229 builder.append(replaceEscapeCharacters(value.toString())); 2230 if (it.hasNext()) { 2231 builder.append(", "); 2232 } 2233 } 2234 return builder.toString(); 2235 } 2236 2237 private String replaceEscapeCharacters(String src) { 2238 final char ESCAPE_CHARACTER = '%'; 2239 final String ENCODING_TARGET_CHARACTERS = "%=,"; 2240 StringBuilder builder = new StringBuilder(); 2241 for (char ch : src.toCharArray()) { 2242 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 2243 builder.append(ESCAPE_CHARACTER); 2244 } 2245 builder.append(ch); 2246 } 2247 return builder.toString(); 2248 } 2249 } 2250 2251 private final class HardwareListener implements TvInputHardwareManager.Listener { 2252 @Override 2253 public void onStateChanged(String inputId, int state) { 2254 synchronized (mLock) { 2255 setStateLocked(inputId, state, mCurrentUserId); 2256 } 2257 } 2258 2259 @Override 2260 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2261 synchronized (mLock) { 2262 UserState userState = getUserStateLocked(mCurrentUserId); 2263 // Broadcast the event to all hardware inputs. 2264 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2265 if (!serviceState.isHardware || serviceState.service == null) continue; 2266 try { 2267 serviceState.service.notifyHardwareAdded(info); 2268 } catch (RemoteException e) { 2269 Slog.e(TAG, "error in notifyHardwareAdded", e); 2270 } 2271 } 2272 } 2273 } 2274 2275 @Override 2276 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2277 synchronized (mLock) { 2278 UserState userState = getUserStateLocked(mCurrentUserId); 2279 // Broadcast the event to all hardware inputs. 2280 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2281 if (!serviceState.isHardware || serviceState.service == null) continue; 2282 try { 2283 serviceState.service.notifyHardwareRemoved(info); 2284 } catch (RemoteException e) { 2285 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2286 } 2287 } 2288 } 2289 } 2290 2291 @Override 2292 public void onHdmiDeviceAdded(HdmiDeviceInfo deviceInfo) { 2293 synchronized (mLock) { 2294 UserState userState = getUserStateLocked(mCurrentUserId); 2295 // Broadcast the event to all hardware inputs. 2296 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2297 if (!serviceState.isHardware || serviceState.service == null) continue; 2298 try { 2299 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 2300 } catch (RemoteException e) { 2301 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2302 } 2303 } 2304 } 2305 } 2306 2307 @Override 2308 public void onHdmiDeviceRemoved(HdmiDeviceInfo deviceInfo) { 2309 synchronized (mLock) { 2310 UserState userState = getUserStateLocked(mCurrentUserId); 2311 // Broadcast the event to all hardware inputs. 2312 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2313 if (!serviceState.isHardware || serviceState.service == null) continue; 2314 try { 2315 serviceState.service.notifyHdmiDeviceRemoved(deviceInfo); 2316 } catch (RemoteException e) { 2317 Slog.e(TAG, "error in notifyHdmiDeviceRemoved", e); 2318 } 2319 } 2320 } 2321 } 2322 2323 @Override 2324 public void onHdmiDeviceUpdated(String inputId, HdmiDeviceInfo deviceInfo) { 2325 synchronized (mLock) { 2326 Integer state = null; 2327 switch (deviceInfo.getDevicePowerStatus()) { 2328 case HdmiControlManager.POWER_STATUS_ON: 2329 state = INPUT_STATE_CONNECTED; 2330 break; 2331 case HdmiControlManager.POWER_STATUS_STANDBY: 2332 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_ON: 2333 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_STANDBY: 2334 state = INPUT_STATE_CONNECTED_STANDBY; 2335 break; 2336 case HdmiControlManager.POWER_STATUS_UNKNOWN: 2337 default: 2338 state = null; 2339 break; 2340 } 2341 if (state != null) { 2342 setStateLocked(inputId, state.intValue(), mCurrentUserId); 2343 } 2344 } 2345 } 2346 } 2347 2348 private static class SessionNotFoundException extends IllegalArgumentException { 2349 public SessionNotFoundException() { 2350 } 2351 2352 public SessionNotFoundException(String name) { 2353 super(name); 2354 } 2355 } 2356 } 2357
