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 22 import android.annotation.Nullable; 23 import android.app.ActivityManager; 24 import android.content.BroadcastReceiver; 25 import android.content.ComponentName; 26 import android.content.ContentResolver; 27 import android.content.ContentUris; 28 import android.content.ContentValues; 29 import android.content.Context; 30 import android.content.Intent; 31 import android.content.IntentFilter; 32 import android.content.ServiceConnection; 33 import android.content.pm.ActivityInfo; 34 import android.content.pm.PackageManager; 35 import android.content.pm.PackageManager.NameNotFoundException; 36 import android.content.pm.ResolveInfo; 37 import android.content.pm.ServiceInfo; 38 import android.graphics.Rect; 39 import android.hardware.hdmi.HdmiControlManager; 40 import android.hardware.hdmi.HdmiDeviceInfo; 41 import android.media.PlaybackParams; 42 import android.media.tv.DvbDeviceInfo; 43 import android.media.tv.ITvInputClient; 44 import android.media.tv.ITvInputHardware; 45 import android.media.tv.ITvInputHardwareCallback; 46 import android.media.tv.ITvInputManager; 47 import android.media.tv.ITvInputManagerCallback; 48 import android.media.tv.ITvInputService; 49 import android.media.tv.ITvInputServiceCallback; 50 import android.media.tv.ITvInputSession; 51 import android.media.tv.ITvInputSessionCallback; 52 import android.media.tv.TvContentRating; 53 import android.media.tv.TvContentRatingSystemInfo; 54 import android.media.tv.TvContract; 55 import android.media.tv.TvInputHardwareInfo; 56 import android.media.tv.TvInputInfo; 57 import android.media.tv.TvInputManager; 58 import android.media.tv.TvInputService; 59 import android.media.tv.TvStreamConfig; 60 import android.media.tv.TvTrackInfo; 61 import android.net.Uri; 62 import android.os.Binder; 63 import android.os.Bundle; 64 import android.os.Handler; 65 import android.os.IBinder; 66 import android.os.Looper; 67 import android.os.Message; 68 import android.os.ParcelFileDescriptor; 69 import android.os.Process; 70 import android.os.RemoteException; 71 import android.os.UserHandle; 72 import android.text.TextUtils; 73 import android.util.Slog; 74 import android.util.SparseArray; 75 import android.view.InputChannel; 76 import android.view.Surface; 77 78 import com.android.internal.content.PackageMonitor; 79 import com.android.internal.os.SomeArgs; 80 import com.android.internal.util.DumpUtils; 81 import com.android.internal.util.IndentingPrintWriter; 82 import com.android.server.IoThread; 83 import com.android.server.SystemService; 84 85 import java.io.File; 86 import java.io.FileDescriptor; 87 import java.io.FileNotFoundException; 88 import java.io.PrintWriter; 89 import java.util.ArrayList; 90 import java.util.Arrays; 91 import java.util.Collections; 92 import java.util.HashMap; 93 import java.util.HashSet; 94 import java.util.Iterator; 95 import java.util.List; 96 import java.util.Map; 97 import java.util.Set; 98 import java.util.regex.Matcher; 99 import java.util.regex.Pattern; 100 101 /** This class provides a system service that manages television inputs. */ 102 public final class TvInputManagerService extends SystemService { 103 private static final boolean DEBUG = false; 104 private static final String TAG = "TvInputManagerService"; 105 private static final String DVB_DIRECTORY = "/dev/dvb"; 106 107 // There are two different formats of DVB frontend devices. One is /dev/dvb%d.frontend%d, 108 // another one is /dev/dvb/adapter%d/frontend%d. Followings are the patterns for selecting the 109 // DVB frontend devices from the list of files in the /dev and /dev/dvb/adapter%d directory. 110 private static final Pattern sFrontEndDevicePattern = 111 Pattern.compile("^dvb([0-9]+)\\.frontend([0-9]+)$"); 112 private static final Pattern sAdapterDirPattern = 113 Pattern.compile("^adapter([0-9]+)$"); 114 private static final Pattern sFrontEndInAdapterDirPattern = 115 Pattern.compile("^frontend([0-9]+)$"); 116 117 private final Context mContext; 118 private final TvInputHardwareManager mTvInputHardwareManager; 119 120 // A global lock. 121 private final Object mLock = new Object(); 122 123 // ID of the current user. 124 private int mCurrentUserId = UserHandle.USER_SYSTEM; 125 126 // A map from user id to UserState. 127 private final SparseArray<UserState> mUserStates = new SparseArray<>(); 128 129 private final WatchLogHandler mWatchLogHandler; 130 131 public TvInputManagerService(Context context) { 132 super(context); 133 134 mContext = context; 135 mWatchLogHandler = new WatchLogHandler(mContext.getContentResolver(), 136 IoThread.get().getLooper()); 137 mTvInputHardwareManager = new TvInputHardwareManager(context, new HardwareListener()); 138 139 synchronized (mLock) { 140 getOrCreateUserStateLocked(mCurrentUserId); 141 } 142 } 143 144 @Override 145 public void onStart() { 146 publishBinderService(Context.TV_INPUT_SERVICE, new BinderService()); 147 } 148 149 @Override 150 public void onBootPhase(int phase) { 151 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 152 registerBroadcastReceivers(); 153 } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { 154 synchronized (mLock) { 155 buildTvInputListLocked(mCurrentUserId, null); 156 buildTvContentRatingSystemListLocked(mCurrentUserId); 157 } 158 } 159 mTvInputHardwareManager.onBootPhase(phase); 160 } 161 162 @Override 163 public void onUnlockUser(int userHandle) { 164 if (DEBUG) Slog.d(TAG, "onUnlockUser(userHandle=" + userHandle + ")"); 165 synchronized (mLock) { 166 if (mCurrentUserId != userHandle) { 167 return; 168 } 169 buildTvInputListLocked(mCurrentUserId, null); 170 buildTvContentRatingSystemListLocked(mCurrentUserId); 171 } 172 } 173 174 private void registerBroadcastReceivers() { 175 PackageMonitor monitor = new PackageMonitor() { 176 private void buildTvInputList(String[] packages) { 177 synchronized (mLock) { 178 if (mCurrentUserId == getChangingUserId()) { 179 buildTvInputListLocked(mCurrentUserId, packages); 180 buildTvContentRatingSystemListLocked(mCurrentUserId); 181 } 182 } 183 } 184 185 @Override 186 public void onPackageUpdateFinished(String packageName, int uid) { 187 if (DEBUG) Slog.d(TAG, "onPackageUpdateFinished(packageName=" + packageName + ")"); 188 // This callback is invoked when the TV input is reinstalled. 189 // In this case, isReplacing() always returns true. 190 buildTvInputList(new String[] { packageName }); 191 } 192 193 @Override 194 public void onPackagesAvailable(String[] packages) { 195 if (DEBUG) { 196 Slog.d(TAG, "onPackagesAvailable(packages=" + Arrays.toString(packages) + ")"); 197 } 198 // This callback is invoked when the media on which some packages exist become 199 // available. 200 if (isReplacing()) { 201 buildTvInputList(packages); 202 } 203 } 204 205 @Override 206 public void onPackagesUnavailable(String[] packages) { 207 // This callback is invoked when the media on which some packages exist become 208 // unavailable. 209 if (DEBUG) { 210 Slog.d(TAG, "onPackagesUnavailable(packages=" + Arrays.toString(packages) 211 + ")"); 212 } 213 if (isReplacing()) { 214 buildTvInputList(packages); 215 } 216 } 217 218 @Override 219 public void onSomePackagesChanged() { 220 // TODO: Use finer-grained methods(e.g. onPackageAdded, onPackageRemoved) to manage 221 // the TV inputs. 222 if (DEBUG) Slog.d(TAG, "onSomePackagesChanged()"); 223 if (isReplacing()) { 224 if (DEBUG) Slog.d(TAG, "Skipped building TV input list due to replacing"); 225 // When the package is updated, buildTvInputListLocked is called in other 226 // methods instead. 227 return; 228 } 229 buildTvInputList(null); 230 } 231 232 @Override 233 public boolean onPackageChanged(String packageName, int uid, String[] components) { 234 // The input list needs to be updated in any cases, regardless of whether 235 // it happened to the whole package or a specific component. Returning true so that 236 // the update can be handled in {@link #onSomePackagesChanged}. 237 return true; 238 } 239 }; 240 monitor.register(mContext, null, UserHandle.ALL, true); 241 242 IntentFilter intentFilter = new IntentFilter(); 243 intentFilter.addAction(Intent.ACTION_USER_SWITCHED); 244 intentFilter.addAction(Intent.ACTION_USER_REMOVED); 245 mContext.registerReceiverAsUser(new BroadcastReceiver() { 246 @Override 247 public void onReceive(Context context, Intent intent) { 248 String action = intent.getAction(); 249 if (Intent.ACTION_USER_SWITCHED.equals(action)) { 250 switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 251 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 252 removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); 253 } 254 } 255 }, UserHandle.ALL, intentFilter, null, null); 256 } 257 258 private static boolean hasHardwarePermission(PackageManager pm, ComponentName component) { 259 return pm.checkPermission(android.Manifest.permission.TV_INPUT_HARDWARE, 260 component.getPackageName()) == PackageManager.PERMISSION_GRANTED; 261 } 262 263 private void buildTvInputListLocked(int userId, String[] updatedPackages) { 264 UserState userState = getOrCreateUserStateLocked(userId); 265 userState.packageSet.clear(); 266 267 if (DEBUG) Slog.d(TAG, "buildTvInputList"); 268 PackageManager pm = mContext.getPackageManager(); 269 List<ResolveInfo> services = pm.queryIntentServicesAsUser( 270 new Intent(TvInputService.SERVICE_INTERFACE), 271 PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, 272 userId); 273 List<TvInputInfo> inputList = new ArrayList<>(); 274 for (ResolveInfo ri : services) { 275 ServiceInfo si = ri.serviceInfo; 276 if (!android.Manifest.permission.BIND_TV_INPUT.equals(si.permission)) { 277 Slog.w(TAG, "Skipping TV input " + si.name + ": it does not require the permission " 278 + android.Manifest.permission.BIND_TV_INPUT); 279 continue; 280 } 281 282 ComponentName component = new ComponentName(si.packageName, si.name); 283 if (hasHardwarePermission(pm, component)) { 284 ServiceState serviceState = userState.serviceStateMap.get(component); 285 if (serviceState == null) { 286 // New hardware input found. Create a new ServiceState and connect to the 287 // service to populate the hardware list. 288 serviceState = new ServiceState(component, userId); 289 userState.serviceStateMap.put(component, serviceState); 290 updateServiceConnectionLocked(component, userId); 291 } else { 292 inputList.addAll(serviceState.hardwareInputMap.values()); 293 } 294 } else { 295 try { 296 TvInputInfo info = new TvInputInfo.Builder(mContext, ri).build(); 297 inputList.add(info); 298 } catch (Exception e) { 299 Slog.e(TAG, "failed to load TV input " + si.name, e); 300 continue; 301 } 302 } 303 userState.packageSet.add(si.packageName); 304 } 305 306 Map<String, TvInputState> inputMap = new HashMap<>(); 307 for (TvInputInfo info : inputList) { 308 if (DEBUG) { 309 Slog.d(TAG, "add " + info.getId()); 310 } 311 TvInputState inputState = userState.inputMap.get(info.getId()); 312 if (inputState == null) { 313 inputState = new TvInputState(); 314 } 315 inputState.info = info; 316 inputMap.put(info.getId(), inputState); 317 } 318 319 for (String inputId : inputMap.keySet()) { 320 if (!userState.inputMap.containsKey(inputId)) { 321 notifyInputAddedLocked(userState, inputId); 322 } else if (updatedPackages != null) { 323 // Notify the package updates 324 ComponentName component = inputMap.get(inputId).info.getComponent(); 325 for (String updatedPackage : updatedPackages) { 326 if (component.getPackageName().equals(updatedPackage)) { 327 updateServiceConnectionLocked(component, userId); 328 notifyInputUpdatedLocked(userState, inputId); 329 break; 330 } 331 } 332 } 333 } 334 335 for (String inputId : userState.inputMap.keySet()) { 336 if (!inputMap.containsKey(inputId)) { 337 TvInputInfo info = userState.inputMap.get(inputId).info; 338 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 339 if (serviceState != null) { 340 abortPendingCreateSessionRequestsLocked(serviceState, inputId, userId); 341 } 342 notifyInputRemovedLocked(userState, inputId); 343 } 344 } 345 346 userState.inputMap.clear(); 347 userState.inputMap = inputMap; 348 } 349 350 private void buildTvContentRatingSystemListLocked(int userId) { 351 UserState userState = getOrCreateUserStateLocked(userId); 352 userState.contentRatingSystemList.clear(); 353 354 final PackageManager pm = mContext.getPackageManager(); 355 Intent intent = new Intent(TvInputManager.ACTION_QUERY_CONTENT_RATING_SYSTEMS); 356 for (ResolveInfo resolveInfo : 357 pm.queryBroadcastReceivers(intent, PackageManager.GET_META_DATA)) { 358 ActivityInfo receiver = resolveInfo.activityInfo; 359 Bundle metaData = receiver.metaData; 360 if (metaData == null) { 361 continue; 362 } 363 364 int xmlResId = metaData.getInt(TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS); 365 if (xmlResId == 0) { 366 Slog.w(TAG, "Missing meta-data '" 367 + TvInputManager.META_DATA_CONTENT_RATING_SYSTEMS + "' on receiver " 368 + receiver.packageName + "/" + receiver.name); 369 continue; 370 } 371 userState.contentRatingSystemList.add( 372 TvContentRatingSystemInfo.createTvContentRatingSystemInfo(xmlResId, 373 receiver.applicationInfo)); 374 } 375 } 376 377 private void switchUser(int userId) { 378 synchronized (mLock) { 379 if (mCurrentUserId == userId) { 380 return; 381 } 382 UserState userState = mUserStates.get(mCurrentUserId); 383 List<SessionState> sessionStatesToRelease = new ArrayList<>(); 384 for (SessionState sessionState : userState.sessionStateMap.values()) { 385 if (sessionState.session != null && !sessionState.isRecordingSession) { 386 sessionStatesToRelease.add(sessionState); 387 } 388 } 389 for (SessionState sessionState : sessionStatesToRelease) { 390 try { 391 sessionState.session.release(); 392 } catch (RemoteException e) { 393 Slog.e(TAG, "error in release", e); 394 } 395 clearSessionAndNotifyClientLocked(sessionState); 396 } 397 398 for (Iterator<ComponentName> it = userState.serviceStateMap.keySet().iterator(); 399 it.hasNext(); ) { 400 ComponentName component = it.next(); 401 ServiceState serviceState = userState.serviceStateMap.get(component); 402 if (serviceState != null && serviceState.sessionTokens.isEmpty()) { 403 if (serviceState.callback != null) { 404 try { 405 serviceState.service.unregisterCallback(serviceState.callback); 406 } catch (RemoteException e) { 407 Slog.e(TAG, "error in unregisterCallback", e); 408 } 409 } 410 mContext.unbindService(serviceState.connection); 411 it.remove(); 412 } 413 } 414 415 mCurrentUserId = userId; 416 getOrCreateUserStateLocked(userId); 417 buildTvInputListLocked(userId, null); 418 buildTvContentRatingSystemListLocked(userId); 419 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_SWITCH_CONTENT_RESOLVER, 420 getContentResolverForUser(userId)).sendToTarget(); 421 } 422 } 423 424 private void clearSessionAndNotifyClientLocked(SessionState state) { 425 if (state.client != null) { 426 try { 427 state.client.onSessionReleased(state.seq); 428 } catch(RemoteException e) { 429 Slog.e(TAG, "error in onSessionReleased", e); 430 } 431 } 432 // If there are any other sessions based on this session, they should be released. 433 UserState userState = getOrCreateUserStateLocked(state.userId); 434 for (SessionState sessionState : userState.sessionStateMap.values()) { 435 if (state.sessionToken == sessionState.hardwareSessionToken) { 436 releaseSessionLocked(sessionState.sessionToken, Process.SYSTEM_UID, state.userId); 437 try { 438 sessionState.client.onSessionReleased(sessionState.seq); 439 } catch (RemoteException e) { 440 Slog.e(TAG, "error in onSessionReleased", e); 441 } 442 } 443 } 444 removeSessionStateLocked(state.sessionToken, state.userId); 445 } 446 447 private void removeUser(int userId) { 448 synchronized (mLock) { 449 UserState userState = mUserStates.get(userId); 450 if (userState == null) { 451 return; 452 } 453 // Release all created sessions. 454 for (SessionState state : userState.sessionStateMap.values()) { 455 if (state.session != null) { 456 try { 457 state.session.release(); 458 } catch (RemoteException e) { 459 Slog.e(TAG, "error in release", e); 460 } 461 } 462 } 463 userState.sessionStateMap.clear(); 464 465 // Unregister all callbacks and unbind all services. 466 for (ServiceState serviceState : userState.serviceStateMap.values()) { 467 if (serviceState.service != null) { 468 if (serviceState.callback != null) { 469 try { 470 serviceState.service.unregisterCallback(serviceState.callback); 471 } catch (RemoteException e) { 472 Slog.e(TAG, "error in unregisterCallback", e); 473 } 474 } 475 mContext.unbindService(serviceState.connection); 476 } 477 } 478 userState.serviceStateMap.clear(); 479 480 // Clear everything else. 481 userState.inputMap.clear(); 482 userState.packageSet.clear(); 483 userState.contentRatingSystemList.clear(); 484 userState.clientStateMap.clear(); 485 userState.callbackSet.clear(); 486 userState.mainSessionToken = null; 487 488 mUserStates.remove(userId); 489 } 490 } 491 492 private ContentResolver getContentResolverForUser(int userId) { 493 UserHandle user = new UserHandle(userId); 494 Context context; 495 try { 496 context = mContext.createPackageContextAsUser("android", 0, user); 497 } catch (NameNotFoundException e) { 498 Slog.e(TAG, "failed to create package context as user " + user); 499 context = mContext; 500 } 501 return context.getContentResolver(); 502 } 503 504 private UserState getOrCreateUserStateLocked(int userId) { 505 UserState userState = mUserStates.get(userId); 506 if (userState == null) { 507 userState = new UserState(mContext, userId); 508 mUserStates.put(userId, userState); 509 } 510 return userState; 511 } 512 513 private ServiceState getServiceStateLocked(ComponentName component, int userId) { 514 UserState userState = getOrCreateUserStateLocked(userId); 515 ServiceState serviceState = userState.serviceStateMap.get(component); 516 if (serviceState == null) { 517 throw new IllegalStateException("Service state not found for " + component + " (userId=" 518 + userId + ")"); 519 } 520 return serviceState; 521 } 522 523 private SessionState getSessionStateLocked(IBinder sessionToken, int callingUid, int userId) { 524 UserState userState = getOrCreateUserStateLocked(userId); 525 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 526 if (sessionState == null) { 527 throw new SessionNotFoundException("Session state not found for token " + sessionToken); 528 } 529 // Only the application that requested this session or the system can access it. 530 if (callingUid != Process.SYSTEM_UID && callingUid != sessionState.callingUid) { 531 throw new SecurityException("Illegal access to the session with token " + sessionToken 532 + " from uid " + callingUid); 533 } 534 return sessionState; 535 } 536 537 private ITvInputSession getSessionLocked(IBinder sessionToken, int callingUid, int userId) { 538 return getSessionLocked(getSessionStateLocked(sessionToken, callingUid, userId)); 539 } 540 541 private ITvInputSession getSessionLocked(SessionState sessionState) { 542 ITvInputSession session = sessionState.session; 543 if (session == null) { 544 throw new IllegalStateException("Session not yet created for token " 545 + sessionState.sessionToken); 546 } 547 return session; 548 } 549 550 private int resolveCallingUserId(int callingPid, int callingUid, int requestedUserId, 551 String methodName) { 552 return ActivityManager.handleIncomingUser(callingPid, callingUid, requestedUserId, false, 553 false, methodName, null); 554 } 555 556 private void updateServiceConnectionLocked(ComponentName component, int userId) { 557 UserState userState = getOrCreateUserStateLocked(userId); 558 ServiceState serviceState = userState.serviceStateMap.get(component); 559 if (serviceState == null) { 560 return; 561 } 562 if (serviceState.reconnecting) { 563 if (!serviceState.sessionTokens.isEmpty()) { 564 // wait until all the sessions are removed. 565 return; 566 } 567 serviceState.reconnecting = false; 568 } 569 570 boolean shouldBind; 571 if (userId == mCurrentUserId) { 572 shouldBind = !serviceState.sessionTokens.isEmpty() || serviceState.isHardware; 573 } else { 574 // For a non-current user, 575 // if sessionTokens is not empty, it contains recording sessions only 576 // because other sessions must have been removed while switching user 577 // and non-recording sessions are not created by createSession(). 578 shouldBind = !serviceState.sessionTokens.isEmpty(); 579 } 580 581 if (serviceState.service == null && shouldBind) { 582 // This means that the service is not yet connected but its state indicates that we 583 // have pending requests. Then, connect the service. 584 if (serviceState.bound) { 585 // We have already bound to the service so we don't try to bind again until after we 586 // unbind later on. 587 return; 588 } 589 if (DEBUG) { 590 Slog.d(TAG, "bindServiceAsUser(service=" + component + ", userId=" + userId + ")"); 591 } 592 593 Intent i = new Intent(TvInputService.SERVICE_INTERFACE).setComponent(component); 594 serviceState.bound = mContext.bindServiceAsUser( 595 i, serviceState.connection, 596 Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE, 597 new UserHandle(userId)); 598 } else if (serviceState.service != null && !shouldBind) { 599 // This means that the service is already connected but its state indicates that we have 600 // nothing to do with it. Then, disconnect the service. 601 if (DEBUG) { 602 Slog.d(TAG, "unbindService(service=" + component + ")"); 603 } 604 mContext.unbindService(serviceState.connection); 605 userState.serviceStateMap.remove(component); 606 } 607 } 608 609 private void abortPendingCreateSessionRequestsLocked(ServiceState serviceState, 610 String inputId, int userId) { 611 // Let clients know the create session requests are failed. 612 UserState userState = getOrCreateUserStateLocked(userId); 613 List<SessionState> sessionsToAbort = new ArrayList<>(); 614 for (IBinder sessionToken : serviceState.sessionTokens) { 615 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 616 if (sessionState.session == null && (inputId == null 617 || sessionState.inputId.equals(inputId))) { 618 sessionsToAbort.add(sessionState); 619 } 620 } 621 for (SessionState sessionState : sessionsToAbort) { 622 removeSessionStateLocked(sessionState.sessionToken, sessionState.userId); 623 sendSessionTokenToClientLocked(sessionState.client, 624 sessionState.inputId, null, null, sessionState.seq); 625 } 626 updateServiceConnectionLocked(serviceState.component, userId); 627 } 628 629 private void createSessionInternalLocked(ITvInputService service, IBinder sessionToken, 630 int userId) { 631 UserState userState = getOrCreateUserStateLocked(userId); 632 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 633 if (DEBUG) { 634 Slog.d(TAG, "createSessionInternalLocked(inputId=" + sessionState.inputId + ")"); 635 } 636 InputChannel[] channels = InputChannel.openInputChannelPair(sessionToken.toString()); 637 638 // Set up a callback to send the session token. 639 ITvInputSessionCallback callback = new SessionCallback(sessionState, channels); 640 641 // Create a session. When failed, send a null token immediately. 642 try { 643 if (sessionState.isRecordingSession) { 644 service.createRecordingSession(callback, sessionState.inputId); 645 } else { 646 service.createSession(channels[1], callback, sessionState.inputId); 647 } 648 } catch (RemoteException e) { 649 Slog.e(TAG, "error in createSession", e); 650 removeSessionStateLocked(sessionToken, userId); 651 sendSessionTokenToClientLocked(sessionState.client, sessionState.inputId, null, 652 null, sessionState.seq); 653 } 654 channels[1].dispose(); 655 } 656 657 private void sendSessionTokenToClientLocked(ITvInputClient client, String inputId, 658 IBinder sessionToken, InputChannel channel, int seq) { 659 try { 660 client.onSessionCreated(inputId, sessionToken, channel, seq); 661 } catch (RemoteException e) { 662 Slog.e(TAG, "error in onSessionCreated", e); 663 } 664 } 665 666 private void releaseSessionLocked(IBinder sessionToken, int callingUid, int userId) { 667 SessionState sessionState = null; 668 try { 669 sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 670 if (sessionState.session != null) { 671 UserState userState = getOrCreateUserStateLocked(userId); 672 if (sessionToken == userState.mainSessionToken) { 673 setMainLocked(sessionToken, false, callingUid, userId); 674 } 675 sessionState.session.release(); 676 } 677 } catch (RemoteException | SessionNotFoundException e) { 678 Slog.e(TAG, "error in releaseSession", e); 679 } finally { 680 if (sessionState != null) { 681 sessionState.session = null; 682 } 683 } 684 removeSessionStateLocked(sessionToken, userId); 685 } 686 687 private void removeSessionStateLocked(IBinder sessionToken, int userId) { 688 UserState userState = getOrCreateUserStateLocked(userId); 689 if (sessionToken == userState.mainSessionToken) { 690 if (DEBUG) { 691 Slog.d(TAG, "mainSessionToken=null"); 692 } 693 userState.mainSessionToken = null; 694 } 695 696 // Remove the session state from the global session state map of the current user. 697 SessionState sessionState = userState.sessionStateMap.remove(sessionToken); 698 699 if (sessionState == null) { 700 return; 701 } 702 703 // Also remove the session token from the session token list of the current client and 704 // service. 705 ClientState clientState = userState.clientStateMap.get(sessionState.client.asBinder()); 706 if (clientState != null) { 707 clientState.sessionTokens.remove(sessionToken); 708 if (clientState.isEmpty()) { 709 userState.clientStateMap.remove(sessionState.client.asBinder()); 710 } 711 } 712 713 ServiceState serviceState = userState.serviceStateMap.get(sessionState.componentName); 714 if (serviceState != null) { 715 serviceState.sessionTokens.remove(sessionToken); 716 } 717 updateServiceConnectionLocked(sessionState.componentName, userId); 718 719 // Log the end of watch. 720 SomeArgs args = SomeArgs.obtain(); 721 args.arg1 = sessionToken; 722 args.arg2 = System.currentTimeMillis(); 723 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_END, args).sendToTarget(); 724 } 725 726 private void setMainLocked(IBinder sessionToken, boolean isMain, int callingUid, int userId) { 727 try { 728 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, userId); 729 if (sessionState.hardwareSessionToken != null) { 730 sessionState = getSessionStateLocked(sessionState.hardwareSessionToken, 731 Process.SYSTEM_UID, userId); 732 } 733 ServiceState serviceState = getServiceStateLocked(sessionState.componentName, userId); 734 if (!serviceState.isHardware) { 735 return; 736 } 737 ITvInputSession session = getSessionLocked(sessionState); 738 session.setMain(isMain); 739 } catch (RemoteException | SessionNotFoundException e) { 740 Slog.e(TAG, "error in setMain", e); 741 } 742 } 743 744 private void notifyInputAddedLocked(UserState userState, String inputId) { 745 if (DEBUG) { 746 Slog.d(TAG, "notifyInputAddedLocked(inputId=" + inputId + ")"); 747 } 748 for (ITvInputManagerCallback callback : userState.callbackSet) { 749 try { 750 callback.onInputAdded(inputId); 751 } catch (RemoteException e) { 752 Slog.e(TAG, "failed to report added input to callback", e); 753 } 754 } 755 } 756 757 private void notifyInputRemovedLocked(UserState userState, String inputId) { 758 if (DEBUG) { 759 Slog.d(TAG, "notifyInputRemovedLocked(inputId=" + inputId + ")"); 760 } 761 for (ITvInputManagerCallback callback : userState.callbackSet) { 762 try { 763 callback.onInputRemoved(inputId); 764 } catch (RemoteException e) { 765 Slog.e(TAG, "failed to report removed input to callback", e); 766 } 767 } 768 } 769 770 private void notifyInputUpdatedLocked(UserState userState, String inputId) { 771 if (DEBUG) { 772 Slog.d(TAG, "notifyInputUpdatedLocked(inputId=" + inputId + ")"); 773 } 774 for (ITvInputManagerCallback callback : userState.callbackSet) { 775 try { 776 callback.onInputUpdated(inputId); 777 } catch (RemoteException e) { 778 Slog.e(TAG, "failed to report updated input to callback", e); 779 } 780 } 781 } 782 783 private void notifyInputStateChangedLocked(UserState userState, String inputId, 784 int state, ITvInputManagerCallback targetCallback) { 785 if (DEBUG) { 786 Slog.d(TAG, "notifyInputStateChangedLocked(inputId=" + inputId 787 + ", state=" + state + ")"); 788 } 789 if (targetCallback == null) { 790 for (ITvInputManagerCallback callback : userState.callbackSet) { 791 try { 792 callback.onInputStateChanged(inputId, state); 793 } catch (RemoteException e) { 794 Slog.e(TAG, "failed to report state change to callback", e); 795 } 796 } 797 } else { 798 try { 799 targetCallback.onInputStateChanged(inputId, state); 800 } catch (RemoteException e) { 801 Slog.e(TAG, "failed to report state change to callback", e); 802 } 803 } 804 } 805 806 private void updateTvInputInfoLocked(UserState userState, TvInputInfo inputInfo) { 807 if (DEBUG) { 808 Slog.d(TAG, "updateTvInputInfoLocked(inputInfo=" + inputInfo + ")"); 809 } 810 String inputId = inputInfo.getId(); 811 TvInputState inputState = userState.inputMap.get(inputId); 812 if (inputState == null) { 813 Slog.e(TAG, "failed to set input info - unknown input id " + inputId); 814 return; 815 } 816 inputState.info = inputInfo; 817 818 for (ITvInputManagerCallback callback : userState.callbackSet) { 819 try { 820 callback.onTvInputInfoUpdated(inputInfo); 821 } catch (RemoteException e) { 822 Slog.e(TAG, "failed to report updated input info to callback", e); 823 } 824 } 825 } 826 827 private void setStateLocked(String inputId, int state, int userId) { 828 UserState userState = getOrCreateUserStateLocked(userId); 829 TvInputState inputState = userState.inputMap.get(inputId); 830 ServiceState serviceState = userState.serviceStateMap.get(inputState.info.getComponent()); 831 int oldState = inputState.state; 832 inputState.state = state; 833 if (serviceState != null && serviceState.service == null 834 && (!serviceState.sessionTokens.isEmpty() || serviceState.isHardware)) { 835 // We don't notify state change while reconnecting. It should remain disconnected. 836 return; 837 } 838 if (oldState != state) { 839 notifyInputStateChangedLocked(userState, inputId, state, null); 840 } 841 } 842 843 private final class BinderService extends ITvInputManager.Stub { 844 @Override 845 public List<TvInputInfo> getTvInputList(int userId) { 846 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 847 Binder.getCallingUid(), userId, "getTvInputList"); 848 final long identity = Binder.clearCallingIdentity(); 849 try { 850 synchronized (mLock) { 851 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 852 List<TvInputInfo> inputList = new ArrayList<>(); 853 for (TvInputState state : userState.inputMap.values()) { 854 inputList.add(state.info); 855 } 856 return inputList; 857 } 858 } finally { 859 Binder.restoreCallingIdentity(identity); 860 } 861 } 862 863 @Override 864 public TvInputInfo getTvInputInfo(String inputId, int userId) { 865 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 866 Binder.getCallingUid(), userId, "getTvInputInfo"); 867 final long identity = Binder.clearCallingIdentity(); 868 try { 869 synchronized (mLock) { 870 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 871 TvInputState state = userState.inputMap.get(inputId); 872 return state == null ? null : state.info; 873 } 874 } finally { 875 Binder.restoreCallingIdentity(identity); 876 } 877 } 878 879 public void updateTvInputInfo(TvInputInfo inputInfo, int userId) { 880 String inputInfoPackageName = inputInfo.getServiceInfo().packageName; 881 String callingPackageName = getCallingPackageName(); 882 if (!TextUtils.equals(inputInfoPackageName, callingPackageName) 883 && mContext.checkCallingPermission( 884 android.Manifest.permission.WRITE_SECURE_SETTINGS) 885 != PackageManager.PERMISSION_GRANTED) { 886 // Only the app owning the input and system settings are allowed to update info. 887 throw new IllegalArgumentException("calling package " + callingPackageName 888 + " is not allowed to change TvInputInfo for " + inputInfoPackageName); 889 } 890 891 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 892 Binder.getCallingUid(), userId, "updateTvInputInfo"); 893 final long identity = Binder.clearCallingIdentity(); 894 try { 895 synchronized (mLock) { 896 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 897 updateTvInputInfoLocked(userState, inputInfo); 898 } 899 } finally { 900 Binder.restoreCallingIdentity(identity); 901 } 902 } 903 904 private String getCallingPackageName() { 905 final String[] packages = mContext.getPackageManager().getPackagesForUid( 906 Binder.getCallingUid()); 907 if (packages != null && packages.length > 0) { 908 return packages[0]; 909 } 910 return "unknown"; 911 } 912 913 @Override 914 public int getTvInputState(String inputId, int userId) { 915 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 916 Binder.getCallingUid(), userId, "getTvInputState"); 917 final long identity = Binder.clearCallingIdentity(); 918 try { 919 synchronized (mLock) { 920 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 921 TvInputState state = userState.inputMap.get(inputId); 922 return state == null ? INPUT_STATE_CONNECTED : state.state; 923 } 924 } finally { 925 Binder.restoreCallingIdentity(identity); 926 } 927 } 928 929 @Override 930 public List<TvContentRatingSystemInfo> getTvContentRatingSystemList(int userId) { 931 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 932 Binder.getCallingUid(), userId, "getTvContentRatingSystemList"); 933 final long identity = Binder.clearCallingIdentity(); 934 try { 935 synchronized (mLock) { 936 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 937 return userState.contentRatingSystemList; 938 } 939 } finally { 940 Binder.restoreCallingIdentity(identity); 941 } 942 } 943 944 @Override 945 public void sendTvInputNotifyIntent(Intent intent, int userId) { 946 if (mContext.checkCallingPermission(android.Manifest.permission.NOTIFY_TV_INPUTS) 947 != PackageManager.PERMISSION_GRANTED) { 948 throw new SecurityException("The caller: " + getCallingPackageName() 949 + " doesn't have permission: " 950 + android.Manifest.permission.NOTIFY_TV_INPUTS); 951 } 952 if (TextUtils.isEmpty(intent.getPackage())) { 953 throw new IllegalArgumentException("Must specify package name to notify."); 954 } 955 switch (intent.getAction()) { 956 case TvContract.ACTION_PREVIEW_PROGRAM_BROWSABLE_DISABLED: 957 if (intent.getLongExtra(TvContract.EXTRA_PREVIEW_PROGRAM_ID, -1) < 0) { 958 throw new IllegalArgumentException("Invalid preview program ID."); 959 } 960 break; 961 case TvContract.ACTION_WATCH_NEXT_PROGRAM_BROWSABLE_DISABLED: 962 if (intent.getLongExtra(TvContract.EXTRA_WATCH_NEXT_PROGRAM_ID, -1) < 0) { 963 throw new IllegalArgumentException("Invalid watch next program ID."); 964 } 965 break; 966 case TvContract.ACTION_PREVIEW_PROGRAM_ADDED_TO_WATCH_NEXT: 967 if (intent.getLongExtra(TvContract.EXTRA_PREVIEW_PROGRAM_ID, -1) < 0) { 968 throw new IllegalArgumentException("Invalid preview program ID."); 969 } 970 if (intent.getLongExtra(TvContract.EXTRA_WATCH_NEXT_PROGRAM_ID, -1) < 0) { 971 throw new IllegalArgumentException("Invalid watch next program ID."); 972 } 973 break; 974 default: 975 throw new IllegalArgumentException("Invalid TV input notifying action: " 976 + intent.getAction()); 977 } 978 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 979 Binder.getCallingUid(), userId, "sendTvInputNotifyIntent"); 980 final long identity = Binder.clearCallingIdentity(); 981 try { 982 getContext().sendBroadcastAsUser(intent, new UserHandle(resolvedUserId)); 983 } finally { 984 Binder.restoreCallingIdentity(identity); 985 } 986 } 987 988 @Override 989 public void registerCallback(final ITvInputManagerCallback callback, int userId) { 990 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 991 Binder.getCallingUid(), userId, "registerCallback"); 992 final long identity = Binder.clearCallingIdentity(); 993 try { 994 synchronized (mLock) { 995 final UserState userState = getOrCreateUserStateLocked(resolvedUserId); 996 userState.callbackSet.add(callback); 997 try { 998 callback.asBinder().linkToDeath(new IBinder.DeathRecipient() { 999 @Override 1000 public void binderDied() { 1001 synchronized (mLock) { 1002 if (userState.callbackSet != null) { 1003 userState.callbackSet.remove(callback); 1004 } 1005 } 1006 } 1007 }, 0); 1008 } catch (RemoteException e) { 1009 Slog.e(TAG, "client process has already died", e); 1010 } 1011 } 1012 } finally { 1013 Binder.restoreCallingIdentity(identity); 1014 } 1015 } 1016 1017 @Override 1018 public void unregisterCallback(ITvInputManagerCallback callback, int userId) { 1019 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1020 Binder.getCallingUid(), userId, "unregisterCallback"); 1021 final long identity = Binder.clearCallingIdentity(); 1022 try { 1023 synchronized (mLock) { 1024 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1025 userState.callbackSet.remove(callback); 1026 } 1027 } finally { 1028 Binder.restoreCallingIdentity(identity); 1029 } 1030 } 1031 1032 @Override 1033 public boolean isParentalControlsEnabled(int userId) { 1034 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1035 Binder.getCallingUid(), userId, "isParentalControlsEnabled"); 1036 final long identity = Binder.clearCallingIdentity(); 1037 try { 1038 synchronized (mLock) { 1039 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1040 return userState.persistentDataStore.isParentalControlsEnabled(); 1041 } 1042 } finally { 1043 Binder.restoreCallingIdentity(identity); 1044 } 1045 } 1046 1047 @Override 1048 public void setParentalControlsEnabled(boolean enabled, int userId) { 1049 ensureParentalControlsPermission(); 1050 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1051 Binder.getCallingUid(), userId, "setParentalControlsEnabled"); 1052 final long identity = Binder.clearCallingIdentity(); 1053 try { 1054 synchronized (mLock) { 1055 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1056 userState.persistentDataStore.setParentalControlsEnabled(enabled); 1057 } 1058 } finally { 1059 Binder.restoreCallingIdentity(identity); 1060 } 1061 } 1062 1063 @Override 1064 public boolean isRatingBlocked(String rating, int userId) { 1065 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1066 Binder.getCallingUid(), userId, "isRatingBlocked"); 1067 final long identity = Binder.clearCallingIdentity(); 1068 try { 1069 synchronized (mLock) { 1070 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1071 return userState.persistentDataStore.isRatingBlocked( 1072 TvContentRating.unflattenFromString(rating)); 1073 } 1074 } finally { 1075 Binder.restoreCallingIdentity(identity); 1076 } 1077 } 1078 1079 @Override 1080 public List<String> getBlockedRatings(int userId) { 1081 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1082 Binder.getCallingUid(), userId, "getBlockedRatings"); 1083 final long identity = Binder.clearCallingIdentity(); 1084 try { 1085 synchronized (mLock) { 1086 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1087 List<String> ratings = new ArrayList<>(); 1088 for (TvContentRating rating 1089 : userState.persistentDataStore.getBlockedRatings()) { 1090 ratings.add(rating.flattenToString()); 1091 } 1092 return ratings; 1093 } 1094 } finally { 1095 Binder.restoreCallingIdentity(identity); 1096 } 1097 } 1098 1099 @Override 1100 public void addBlockedRating(String rating, int userId) { 1101 ensureParentalControlsPermission(); 1102 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1103 Binder.getCallingUid(), userId, "addBlockedRating"); 1104 final long identity = Binder.clearCallingIdentity(); 1105 try { 1106 synchronized (mLock) { 1107 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1108 userState.persistentDataStore.addBlockedRating( 1109 TvContentRating.unflattenFromString(rating)); 1110 } 1111 } finally { 1112 Binder.restoreCallingIdentity(identity); 1113 } 1114 } 1115 1116 @Override 1117 public void removeBlockedRating(String rating, int userId) { 1118 ensureParentalControlsPermission(); 1119 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), 1120 Binder.getCallingUid(), userId, "removeBlockedRating"); 1121 final long identity = Binder.clearCallingIdentity(); 1122 try { 1123 synchronized (mLock) { 1124 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1125 userState.persistentDataStore.removeBlockedRating( 1126 TvContentRating.unflattenFromString(rating)); 1127 } 1128 } finally { 1129 Binder.restoreCallingIdentity(identity); 1130 } 1131 } 1132 1133 private void ensureParentalControlsPermission() { 1134 if (mContext.checkCallingPermission( 1135 android.Manifest.permission.MODIFY_PARENTAL_CONTROLS) 1136 != PackageManager.PERMISSION_GRANTED) { 1137 throw new SecurityException( 1138 "The caller does not have parental controls permission"); 1139 } 1140 } 1141 1142 @Override 1143 public void createSession(final ITvInputClient client, final String inputId, 1144 boolean isRecordingSession, int seq, int userId) { 1145 final int callingUid = Binder.getCallingUid(); 1146 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1147 userId, "createSession"); 1148 final long identity = Binder.clearCallingIdentity(); 1149 try { 1150 synchronized (mLock) { 1151 if (userId != mCurrentUserId && !isRecordingSession) { 1152 // A non-recording session of a backgroud (non-current) user 1153 // should not be created. 1154 // Let the client get onConnectionFailed callback for this case. 1155 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1156 return; 1157 } 1158 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1159 TvInputState inputState = userState.inputMap.get(inputId); 1160 if (inputState == null) { 1161 Slog.w(TAG, "Failed to find input state for inputId=" + inputId); 1162 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1163 return; 1164 } 1165 TvInputInfo info = inputState.info; 1166 ServiceState serviceState = userState.serviceStateMap.get(info.getComponent()); 1167 if (serviceState == null) { 1168 serviceState = new ServiceState(info.getComponent(), resolvedUserId); 1169 userState.serviceStateMap.put(info.getComponent(), serviceState); 1170 } 1171 // Send a null token immediately while reconnecting. 1172 if (serviceState.reconnecting) { 1173 sendSessionTokenToClientLocked(client, inputId, null, null, seq); 1174 return; 1175 } 1176 1177 // Create a new session token and a session state. 1178 IBinder sessionToken = new Binder(); 1179 SessionState sessionState = new SessionState(sessionToken, info.getId(), 1180 info.getComponent(), isRecordingSession, client, seq, callingUid, 1181 resolvedUserId); 1182 1183 // Add them to the global session state map of the current user. 1184 userState.sessionStateMap.put(sessionToken, sessionState); 1185 1186 // Also, add them to the session state map of the current service. 1187 serviceState.sessionTokens.add(sessionToken); 1188 1189 if (serviceState.service != null) { 1190 createSessionInternalLocked(serviceState.service, sessionToken, 1191 resolvedUserId); 1192 } else { 1193 updateServiceConnectionLocked(info.getComponent(), resolvedUserId); 1194 } 1195 } 1196 } finally { 1197 Binder.restoreCallingIdentity(identity); 1198 } 1199 } 1200 1201 @Override 1202 public void releaseSession(IBinder sessionToken, int userId) { 1203 if (DEBUG) { 1204 Slog.d(TAG, "releaseSession(sessionToken=" + sessionToken + ")"); 1205 } 1206 final int callingUid = Binder.getCallingUid(); 1207 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1208 userId, "releaseSession"); 1209 final long identity = Binder.clearCallingIdentity(); 1210 try { 1211 synchronized (mLock) { 1212 releaseSessionLocked(sessionToken, callingUid, resolvedUserId); 1213 } 1214 } finally { 1215 Binder.restoreCallingIdentity(identity); 1216 } 1217 } 1218 1219 @Override 1220 public void setMainSession(IBinder sessionToken, int userId) { 1221 if (DEBUG) { 1222 Slog.d(TAG, "setMainSession(sessionToken=" + sessionToken + ")"); 1223 } 1224 final int callingUid = Binder.getCallingUid(); 1225 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1226 userId, "setMainSession"); 1227 final long identity = Binder.clearCallingIdentity(); 1228 try { 1229 synchronized (mLock) { 1230 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1231 if (userState.mainSessionToken == sessionToken) { 1232 return; 1233 } 1234 if (DEBUG) { 1235 Slog.d(TAG, "mainSessionToken=" + sessionToken); 1236 } 1237 IBinder oldMainSessionToken = userState.mainSessionToken; 1238 userState.mainSessionToken = sessionToken; 1239 1240 // Inform the new main session first. 1241 // See {@link TvInputService.Session#onSetMain}. 1242 if (sessionToken != null) { 1243 setMainLocked(sessionToken, true, callingUid, userId); 1244 } 1245 if (oldMainSessionToken != null) { 1246 setMainLocked(oldMainSessionToken, false, Process.SYSTEM_UID, userId); 1247 } 1248 } 1249 } finally { 1250 Binder.restoreCallingIdentity(identity); 1251 } 1252 } 1253 1254 @Override 1255 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1256 final int callingUid = Binder.getCallingUid(); 1257 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1258 userId, "setSurface"); 1259 final long identity = Binder.clearCallingIdentity(); 1260 try { 1261 synchronized (mLock) { 1262 try { 1263 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1264 resolvedUserId); 1265 if (sessionState.hardwareSessionToken == null) { 1266 getSessionLocked(sessionState).setSurface(surface); 1267 } else { 1268 getSessionLocked(sessionState.hardwareSessionToken, 1269 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1270 } 1271 } catch (RemoteException | SessionNotFoundException e) { 1272 Slog.e(TAG, "error in setSurface", e); 1273 } 1274 } 1275 } finally { 1276 if (surface != null) { 1277 // surface is not used in TvInputManagerService. 1278 surface.release(); 1279 } 1280 Binder.restoreCallingIdentity(identity); 1281 } 1282 } 1283 1284 @Override 1285 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1286 int height, int userId) { 1287 final int callingUid = Binder.getCallingUid(); 1288 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1289 userId, "dispatchSurfaceChanged"); 1290 final long identity = Binder.clearCallingIdentity(); 1291 try { 1292 synchronized (mLock) { 1293 try { 1294 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1295 resolvedUserId); 1296 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, 1297 height); 1298 if (sessionState.hardwareSessionToken != null) { 1299 getSessionLocked(sessionState.hardwareSessionToken, Process.SYSTEM_UID, 1300 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1301 } 1302 } catch (RemoteException | SessionNotFoundException e) { 1303 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1304 } 1305 } 1306 } finally { 1307 Binder.restoreCallingIdentity(identity); 1308 } 1309 } 1310 1311 @Override 1312 public void setVolume(IBinder sessionToken, float volume, int userId) { 1313 final float REMOTE_VOLUME_ON = 1.0f; 1314 final float REMOTE_VOLUME_OFF = 0f; 1315 final int callingUid = Binder.getCallingUid(); 1316 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1317 userId, "setVolume"); 1318 final long identity = Binder.clearCallingIdentity(); 1319 try { 1320 synchronized (mLock) { 1321 try { 1322 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1323 resolvedUserId); 1324 getSessionLocked(sessionState).setVolume(volume); 1325 if (sessionState.hardwareSessionToken != null) { 1326 // Here, we let the hardware session know only whether volume is on or 1327 // off to prevent that the volume is controlled in the both side. 1328 getSessionLocked(sessionState.hardwareSessionToken, 1329 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1330 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1331 } 1332 } catch (RemoteException | SessionNotFoundException e) { 1333 Slog.e(TAG, "error in setVolume", e); 1334 } 1335 } 1336 } finally { 1337 Binder.restoreCallingIdentity(identity); 1338 } 1339 } 1340 1341 @Override 1342 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1343 final int callingUid = Binder.getCallingUid(); 1344 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1345 userId, "tune"); 1346 final long identity = Binder.clearCallingIdentity(); 1347 try { 1348 synchronized (mLock) { 1349 try { 1350 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1351 channelUri, params); 1352 if (TvContract.isChannelUriForPassthroughInput(channelUri)) { 1353 // Do not log the watch history for passthrough inputs. 1354 return; 1355 } 1356 1357 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1358 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1359 if (sessionState.isRecordingSession) { 1360 return; 1361 } 1362 1363 // Log the start of watch. 1364 SomeArgs args = SomeArgs.obtain(); 1365 args.arg1 = sessionState.componentName.getPackageName(); 1366 args.arg2 = System.currentTimeMillis(); 1367 args.arg3 = ContentUris.parseId(channelUri); 1368 args.arg4 = params; 1369 args.arg5 = sessionToken; 1370 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_START, args) 1371 .sendToTarget(); 1372 } catch (RemoteException | SessionNotFoundException e) { 1373 Slog.e(TAG, "error in tune", e); 1374 } 1375 } 1376 } finally { 1377 Binder.restoreCallingIdentity(identity); 1378 } 1379 } 1380 1381 @Override 1382 public void unblockContent( 1383 IBinder sessionToken, String unblockedRating, int userId) { 1384 ensureParentalControlsPermission(); 1385 final int callingUid = Binder.getCallingUid(); 1386 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1387 userId, "unblockContent"); 1388 final long identity = Binder.clearCallingIdentity(); 1389 try { 1390 synchronized (mLock) { 1391 try { 1392 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1393 .unblockContent(unblockedRating); 1394 } catch (RemoteException | SessionNotFoundException e) { 1395 Slog.e(TAG, "error in unblockContent", e); 1396 } 1397 } 1398 } finally { 1399 Binder.restoreCallingIdentity(identity); 1400 } 1401 } 1402 1403 @Override 1404 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1405 final int callingUid = Binder.getCallingUid(); 1406 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1407 userId, "setCaptionEnabled"); 1408 final long identity = Binder.clearCallingIdentity(); 1409 try { 1410 synchronized (mLock) { 1411 try { 1412 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1413 .setCaptionEnabled(enabled); 1414 } catch (RemoteException | SessionNotFoundException e) { 1415 Slog.e(TAG, "error in setCaptionEnabled", e); 1416 } 1417 } 1418 } finally { 1419 Binder.restoreCallingIdentity(identity); 1420 } 1421 } 1422 1423 @Override 1424 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1425 final int callingUid = Binder.getCallingUid(); 1426 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1427 userId, "selectTrack"); 1428 final long identity = Binder.clearCallingIdentity(); 1429 try { 1430 synchronized (mLock) { 1431 try { 1432 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1433 type, trackId); 1434 } catch (RemoteException | SessionNotFoundException e) { 1435 Slog.e(TAG, "error in selectTrack", e); 1436 } 1437 } 1438 } finally { 1439 Binder.restoreCallingIdentity(identity); 1440 } 1441 } 1442 1443 @Override 1444 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1445 int userId) { 1446 final int callingUid = Binder.getCallingUid(); 1447 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1448 userId, "sendAppPrivateCommand"); 1449 final long identity = Binder.clearCallingIdentity(); 1450 try { 1451 synchronized (mLock) { 1452 try { 1453 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1454 .appPrivateCommand(command, data); 1455 } catch (RemoteException | SessionNotFoundException e) { 1456 Slog.e(TAG, "error in appPrivateCommand", e); 1457 } 1458 } 1459 } finally { 1460 Binder.restoreCallingIdentity(identity); 1461 } 1462 } 1463 1464 @Override 1465 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1466 int userId) { 1467 final int callingUid = Binder.getCallingUid(); 1468 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1469 userId, "createOverlayView"); 1470 final long identity = Binder.clearCallingIdentity(); 1471 try { 1472 synchronized (mLock) { 1473 try { 1474 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1475 .createOverlayView(windowToken, frame); 1476 } catch (RemoteException | SessionNotFoundException e) { 1477 Slog.e(TAG, "error in createOverlayView", e); 1478 } 1479 } 1480 } finally { 1481 Binder.restoreCallingIdentity(identity); 1482 } 1483 } 1484 1485 @Override 1486 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1487 final int callingUid = Binder.getCallingUid(); 1488 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1489 userId, "relayoutOverlayView"); 1490 final long identity = Binder.clearCallingIdentity(); 1491 try { 1492 synchronized (mLock) { 1493 try { 1494 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1495 .relayoutOverlayView(frame); 1496 } catch (RemoteException | SessionNotFoundException e) { 1497 Slog.e(TAG, "error in relayoutOverlayView", e); 1498 } 1499 } 1500 } finally { 1501 Binder.restoreCallingIdentity(identity); 1502 } 1503 } 1504 1505 @Override 1506 public void removeOverlayView(IBinder sessionToken, int userId) { 1507 final int callingUid = Binder.getCallingUid(); 1508 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1509 userId, "removeOverlayView"); 1510 final long identity = Binder.clearCallingIdentity(); 1511 try { 1512 synchronized (mLock) { 1513 try { 1514 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1515 .removeOverlayView(); 1516 } catch (RemoteException | SessionNotFoundException e) { 1517 Slog.e(TAG, "error in removeOverlayView", e); 1518 } 1519 } 1520 } finally { 1521 Binder.restoreCallingIdentity(identity); 1522 } 1523 } 1524 1525 @Override 1526 public void timeShiftPlay(IBinder sessionToken, final Uri recordedProgramUri, int userId) { 1527 final int callingUid = Binder.getCallingUid(); 1528 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1529 userId, "timeShiftPlay"); 1530 final long identity = Binder.clearCallingIdentity(); 1531 try { 1532 synchronized (mLock) { 1533 try { 1534 getSessionLocked(sessionToken, callingUid, resolvedUserId).timeShiftPlay( 1535 recordedProgramUri); 1536 } catch (RemoteException | SessionNotFoundException e) { 1537 Slog.e(TAG, "error in timeShiftPlay", e); 1538 } 1539 } 1540 } finally { 1541 Binder.restoreCallingIdentity(identity); 1542 } 1543 } 1544 1545 @Override 1546 public void timeShiftPause(IBinder sessionToken, int userId) { 1547 final int callingUid = Binder.getCallingUid(); 1548 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1549 userId, "timeShiftPause"); 1550 final long identity = Binder.clearCallingIdentity(); 1551 try { 1552 synchronized (mLock) { 1553 try { 1554 getSessionLocked(sessionToken, callingUid, resolvedUserId).timeShiftPause(); 1555 } catch (RemoteException | SessionNotFoundException e) { 1556 Slog.e(TAG, "error in timeShiftPause", e); 1557 } 1558 } 1559 } finally { 1560 Binder.restoreCallingIdentity(identity); 1561 } 1562 } 1563 1564 @Override 1565 public void timeShiftResume(IBinder sessionToken, int userId) { 1566 final int callingUid = Binder.getCallingUid(); 1567 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1568 userId, "timeShiftResume"); 1569 final long identity = Binder.clearCallingIdentity(); 1570 try { 1571 synchronized (mLock) { 1572 try { 1573 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1574 .timeShiftResume(); 1575 } catch (RemoteException | SessionNotFoundException e) { 1576 Slog.e(TAG, "error in timeShiftResume", e); 1577 } 1578 } 1579 } finally { 1580 Binder.restoreCallingIdentity(identity); 1581 } 1582 } 1583 1584 @Override 1585 public void timeShiftSeekTo(IBinder sessionToken, long timeMs, int userId) { 1586 final int callingUid = Binder.getCallingUid(); 1587 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1588 userId, "timeShiftSeekTo"); 1589 final long identity = Binder.clearCallingIdentity(); 1590 try { 1591 synchronized (mLock) { 1592 try { 1593 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1594 .timeShiftSeekTo(timeMs); 1595 } catch (RemoteException | SessionNotFoundException e) { 1596 Slog.e(TAG, "error in timeShiftSeekTo", e); 1597 } 1598 } 1599 } finally { 1600 Binder.restoreCallingIdentity(identity); 1601 } 1602 } 1603 1604 @Override 1605 public void timeShiftSetPlaybackParams(IBinder sessionToken, PlaybackParams params, 1606 int userId) { 1607 final int callingUid = Binder.getCallingUid(); 1608 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1609 userId, "timeShiftSetPlaybackParams"); 1610 final long identity = Binder.clearCallingIdentity(); 1611 try { 1612 synchronized (mLock) { 1613 try { 1614 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1615 .timeShiftSetPlaybackParams(params); 1616 } catch (RemoteException | SessionNotFoundException e) { 1617 Slog.e(TAG, "error in timeShiftSetPlaybackParams", e); 1618 } 1619 } 1620 } finally { 1621 Binder.restoreCallingIdentity(identity); 1622 } 1623 } 1624 1625 @Override 1626 public void timeShiftEnablePositionTracking(IBinder sessionToken, boolean enable, 1627 int userId) { 1628 final int callingUid = Binder.getCallingUid(); 1629 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1630 userId, "timeShiftEnablePositionTracking"); 1631 final long identity = Binder.clearCallingIdentity(); 1632 try { 1633 synchronized (mLock) { 1634 try { 1635 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1636 .timeShiftEnablePositionTracking(enable); 1637 } catch (RemoteException | SessionNotFoundException e) { 1638 Slog.e(TAG, "error in timeShiftEnablePositionTracking", e); 1639 } 1640 } 1641 } finally { 1642 Binder.restoreCallingIdentity(identity); 1643 } 1644 } 1645 1646 @Override 1647 public void startRecording(IBinder sessionToken, @Nullable Uri programUri, int userId) { 1648 final int callingUid = Binder.getCallingUid(); 1649 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1650 userId, "startRecording"); 1651 final long identity = Binder.clearCallingIdentity(); 1652 try { 1653 synchronized (mLock) { 1654 try { 1655 getSessionLocked(sessionToken, callingUid, resolvedUserId).startRecording( 1656 programUri); 1657 } catch (RemoteException | SessionNotFoundException e) { 1658 Slog.e(TAG, "error in startRecording", e); 1659 } 1660 } 1661 } finally { 1662 Binder.restoreCallingIdentity(identity); 1663 } 1664 } 1665 1666 @Override 1667 public void stopRecording(IBinder sessionToken, int userId) { 1668 final int callingUid = Binder.getCallingUid(); 1669 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1670 userId, "stopRecording"); 1671 final long identity = Binder.clearCallingIdentity(); 1672 try { 1673 synchronized (mLock) { 1674 try { 1675 getSessionLocked(sessionToken, callingUid, resolvedUserId).stopRecording(); 1676 } catch (RemoteException | SessionNotFoundException e) { 1677 Slog.e(TAG, "error in stopRecording", e); 1678 } 1679 } 1680 } finally { 1681 Binder.restoreCallingIdentity(identity); 1682 } 1683 } 1684 1685 @Override 1686 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1687 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1688 != PackageManager.PERMISSION_GRANTED) { 1689 return null; 1690 } 1691 1692 final long identity = Binder.clearCallingIdentity(); 1693 try { 1694 return mTvInputHardwareManager.getHardwareList(); 1695 } finally { 1696 Binder.restoreCallingIdentity(identity); 1697 } 1698 } 1699 1700 @Override 1701 public ITvInputHardware acquireTvInputHardware(int deviceId, 1702 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1703 throws RemoteException { 1704 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1705 != PackageManager.PERMISSION_GRANTED) { 1706 return null; 1707 } 1708 1709 final long identity = Binder.clearCallingIdentity(); 1710 final int callingUid = Binder.getCallingUid(); 1711 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1712 userId, "acquireTvInputHardware"); 1713 try { 1714 return mTvInputHardwareManager.acquireHardware( 1715 deviceId, callback, info, callingUid, resolvedUserId); 1716 } finally { 1717 Binder.restoreCallingIdentity(identity); 1718 } 1719 } 1720 1721 @Override 1722 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1723 throws RemoteException { 1724 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1725 != PackageManager.PERMISSION_GRANTED) { 1726 return; 1727 } 1728 1729 final long identity = Binder.clearCallingIdentity(); 1730 final int callingUid = Binder.getCallingUid(); 1731 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1732 userId, "releaseTvInputHardware"); 1733 try { 1734 mTvInputHardwareManager.releaseHardware( 1735 deviceId, hardware, callingUid, resolvedUserId); 1736 } finally { 1737 Binder.restoreCallingIdentity(identity); 1738 } 1739 } 1740 1741 @Override 1742 public List<DvbDeviceInfo> getDvbDeviceList() throws RemoteException { 1743 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1744 != PackageManager.PERMISSION_GRANTED) { 1745 throw new SecurityException("Requires DVB_DEVICE permission"); 1746 } 1747 1748 final long identity = Binder.clearCallingIdentity(); 1749 try { 1750 // Pattern1: /dev/dvb%d.frontend%d 1751 ArrayList<DvbDeviceInfo> deviceInfosFromPattern1 = new ArrayList<>(); 1752 File devDirectory = new File("/dev"); 1753 boolean dvbDirectoryFound = false; 1754 for (String fileName : devDirectory.list()) { 1755 Matcher matcher = sFrontEndDevicePattern.matcher(fileName); 1756 if (matcher.find()) { 1757 int adapterId = Integer.parseInt(matcher.group(1)); 1758 int deviceId = Integer.parseInt(matcher.group(2)); 1759 deviceInfosFromPattern1.add(new DvbDeviceInfo(adapterId, deviceId)); 1760 } 1761 if (TextUtils.equals("dvb", fileName)) { 1762 dvbDirectoryFound = true; 1763 } 1764 } 1765 if (!dvbDirectoryFound) { 1766 return Collections.unmodifiableList(deviceInfosFromPattern1); 1767 } 1768 File dvbDirectory = new File(DVB_DIRECTORY); 1769 // Pattern2: /dev/dvb/adapter%d/frontend%d 1770 ArrayList<DvbDeviceInfo> deviceInfosFromPattern2 = new ArrayList<>(); 1771 for (String fileNameInDvb : dvbDirectory.list()) { 1772 Matcher adapterMatcher = sAdapterDirPattern.matcher(fileNameInDvb); 1773 if (adapterMatcher.find()) { 1774 int adapterId = Integer.parseInt(adapterMatcher.group(1)); 1775 File adapterDirectory = new File(DVB_DIRECTORY + "/" + fileNameInDvb); 1776 for (String fileNameInAdapter : adapterDirectory.list()) { 1777 Matcher frontendMatcher = sFrontEndInAdapterDirPattern.matcher( 1778 fileNameInAdapter); 1779 if (frontendMatcher.find()) { 1780 int deviceId = Integer.parseInt(frontendMatcher.group(1)); 1781 deviceInfosFromPattern2.add( 1782 new DvbDeviceInfo(adapterId, deviceId)); 1783 } 1784 } 1785 } 1786 } 1787 return deviceInfosFromPattern2.isEmpty() 1788 ? Collections.unmodifiableList(deviceInfosFromPattern1) 1789 : Collections.unmodifiableList(deviceInfosFromPattern2); 1790 } finally { 1791 Binder.restoreCallingIdentity(identity); 1792 } 1793 } 1794 1795 @Override 1796 public ParcelFileDescriptor openDvbDevice(DvbDeviceInfo info, int device) 1797 throws RemoteException { 1798 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1799 != PackageManager.PERMISSION_GRANTED) { 1800 throw new SecurityException("Requires DVB_DEVICE permission"); 1801 } 1802 1803 File devDirectory = new File("/dev"); 1804 boolean dvbDeviceFound = false; 1805 for (String fileName : devDirectory.list()) { 1806 if (TextUtils.equals("dvb", fileName)) { 1807 File dvbDirectory = new File(DVB_DIRECTORY); 1808 for (String fileNameInDvb : dvbDirectory.list()) { 1809 Matcher adapterMatcher = sAdapterDirPattern.matcher(fileNameInDvb); 1810 if (adapterMatcher.find()) { 1811 File adapterDirectory = new File(DVB_DIRECTORY + "/" + fileNameInDvb); 1812 for (String fileNameInAdapter : adapterDirectory.list()) { 1813 Matcher frontendMatcher = sFrontEndInAdapterDirPattern.matcher( 1814 fileNameInAdapter); 1815 if (frontendMatcher.find()) { 1816 dvbDeviceFound = true; 1817 break; 1818 } 1819 } 1820 } 1821 if (dvbDeviceFound) { 1822 break; 1823 } 1824 } 1825 } 1826 if (dvbDeviceFound) { 1827 break; 1828 } 1829 } 1830 1831 final long identity = Binder.clearCallingIdentity(); 1832 try { 1833 String deviceFileName; 1834 switch (device) { 1835 case TvInputManager.DVB_DEVICE_DEMUX: 1836 deviceFileName = String.format(dvbDeviceFound 1837 ? "/dev/dvb/adapter%d/demux%d" : "/dev/dvb%d.demux%d", 1838 info.getAdapterId(), info.getDeviceId()); 1839 break; 1840 case TvInputManager.DVB_DEVICE_DVR: 1841 deviceFileName = String.format(dvbDeviceFound 1842 ? "/dev/dvb/adapter%d/dvr%d" : "/dev/dvb%d.dvr%d", 1843 info.getAdapterId(), info.getDeviceId()); 1844 break; 1845 case TvInputManager.DVB_DEVICE_FRONTEND: 1846 deviceFileName = String.format(dvbDeviceFound 1847 ? "/dev/dvb/adapter%d/frontend%d" : "/dev/dvb%d.frontend%d", 1848 info.getAdapterId(), info.getDeviceId()); 1849 break; 1850 default: 1851 throw new IllegalArgumentException("Invalid DVB device: " + device); 1852 } 1853 try { 1854 // The DVB frontend device only needs to be opened in read/write mode, which 1855 // allows performing tuning operations. The DVB demux and DVR device are enough 1856 // to be opened in read only mode. 1857 return ParcelFileDescriptor.open(new File(deviceFileName), 1858 TvInputManager.DVB_DEVICE_FRONTEND == device 1859 ? ParcelFileDescriptor.MODE_READ_WRITE 1860 : ParcelFileDescriptor.MODE_READ_ONLY); 1861 } catch (FileNotFoundException e) { 1862 return null; 1863 } 1864 } finally { 1865 Binder.restoreCallingIdentity(identity); 1866 } 1867 } 1868 1869 @Override 1870 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1871 throws RemoteException { 1872 if (mContext.checkCallingPermission( 1873 android.Manifest.permission.CAPTURE_TV_INPUT) 1874 != PackageManager.PERMISSION_GRANTED) { 1875 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1876 } 1877 1878 final long identity = Binder.clearCallingIdentity(); 1879 final int callingUid = Binder.getCallingUid(); 1880 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1881 userId, "getAvailableTvStreamConfigList"); 1882 try { 1883 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1884 inputId, callingUid, resolvedUserId); 1885 } finally { 1886 Binder.restoreCallingIdentity(identity); 1887 } 1888 } 1889 1890 @Override 1891 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1892 int userId) 1893 throws RemoteException { 1894 if (mContext.checkCallingPermission( 1895 android.Manifest.permission.CAPTURE_TV_INPUT) 1896 != PackageManager.PERMISSION_GRANTED) { 1897 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1898 } 1899 1900 final long identity = Binder.clearCallingIdentity(); 1901 final int callingUid = Binder.getCallingUid(); 1902 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1903 userId, "captureFrame"); 1904 try { 1905 String hardwareInputId = null; 1906 synchronized (mLock) { 1907 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1908 if (userState.inputMap.get(inputId) == null) { 1909 Slog.e(TAG, "input not found for " + inputId); 1910 return false; 1911 } 1912 for (SessionState sessionState : userState.sessionStateMap.values()) { 1913 if (sessionState.inputId.equals(inputId) 1914 && sessionState.hardwareSessionToken != null) { 1915 hardwareInputId = userState.sessionStateMap.get( 1916 sessionState.hardwareSessionToken).inputId; 1917 break; 1918 } 1919 } 1920 } 1921 return mTvInputHardwareManager.captureFrame( 1922 (hardwareInputId != null) ? hardwareInputId : inputId, 1923 surface, config, callingUid, resolvedUserId); 1924 } finally { 1925 Binder.restoreCallingIdentity(identity); 1926 } 1927 } 1928 1929 @Override 1930 public boolean isSingleSessionActive(int userId) throws RemoteException { 1931 final long identity = Binder.clearCallingIdentity(); 1932 final int callingUid = Binder.getCallingUid(); 1933 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1934 userId, "isSingleSessionActive"); 1935 try { 1936 synchronized (mLock) { 1937 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1938 if (userState.sessionStateMap.size() == 1) { 1939 return true; 1940 } else if (userState.sessionStateMap.size() == 2) { 1941 SessionState[] sessionStates = userState.sessionStateMap.values().toArray( 1942 new SessionState[2]); 1943 // Check if there is a wrapper input. 1944 if (sessionStates[0].hardwareSessionToken != null 1945 || sessionStates[1].hardwareSessionToken != null) { 1946 return true; 1947 } 1948 } 1949 return false; 1950 } 1951 } finally { 1952 Binder.restoreCallingIdentity(identity); 1953 } 1954 } 1955 1956 @Override 1957 public void requestChannelBrowsable(Uri channelUri, int userId) 1958 throws RemoteException { 1959 final String callingPackageName = getCallingPackageName(); 1960 final long identity = Binder.clearCallingIdentity(); 1961 final int callingUid = Binder.getCallingUid(); 1962 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1963 userId, "requestChannelBrowsable"); 1964 try { 1965 Intent intent = new Intent(TvContract.ACTION_CHANNEL_BROWSABLE_REQUESTED); 1966 List<ResolveInfo> list = getContext().getPackageManager() 1967 .queryBroadcastReceivers(intent, 0); 1968 if (list != null) { 1969 for (ResolveInfo info : list) { 1970 String receiverPackageName = info.activityInfo.packageName; 1971 intent.putExtra(TvContract.EXTRA_CHANNEL_ID, ContentUris.parseId( 1972 channelUri)); 1973 intent.putExtra(TvContract.EXTRA_PACKAGE_NAME, callingPackageName); 1974 intent.setPackage(receiverPackageName); 1975 getContext().sendBroadcastAsUser(intent, new UserHandle(resolvedUserId)); 1976 } 1977 } 1978 } finally { 1979 Binder.restoreCallingIdentity(identity); 1980 } 1981 } 1982 1983 @Override 1984 @SuppressWarnings("resource") 1985 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1986 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1987 if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; 1988 1989 synchronized (mLock) { 1990 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1991 pw.increaseIndent(); 1992 for (int i = 0; i < mUserStates.size(); i++) { 1993 int userId = mUserStates.keyAt(i); 1994 pw.println(Integer.valueOf(userId)); 1995 } 1996 pw.decreaseIndent(); 1997 1998 for (int i = 0; i < mUserStates.size(); i++) { 1999 int userId = mUserStates.keyAt(i); 2000 UserState userState = getOrCreateUserStateLocked(userId); 2001 pw.println("UserState (" + userId + "):"); 2002 pw.increaseIndent(); 2003 2004 pw.println("inputMap: inputId -> TvInputState"); 2005 pw.increaseIndent(); 2006 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 2007 pw.println(entry.getKey() + ": " + entry.getValue()); 2008 } 2009 pw.decreaseIndent(); 2010 2011 pw.println("packageSet:"); 2012 pw.increaseIndent(); 2013 for (String packageName : userState.packageSet) { 2014 pw.println(packageName); 2015 } 2016 pw.decreaseIndent(); 2017 2018 pw.println("clientStateMap: ITvInputClient -> ClientState"); 2019 pw.increaseIndent(); 2020 for (Map.Entry<IBinder, ClientState> entry : 2021 userState.clientStateMap.entrySet()) { 2022 ClientState client = entry.getValue(); 2023 pw.println(entry.getKey() + ": " + client); 2024 2025 pw.increaseIndent(); 2026 2027 pw.println("sessionTokens:"); 2028 pw.increaseIndent(); 2029 for (IBinder token : client.sessionTokens) { 2030 pw.println("" + token); 2031 } 2032 pw.decreaseIndent(); 2033 2034 pw.println("clientTokens: " + client.clientToken); 2035 pw.println("userId: " + client.userId); 2036 2037 pw.decreaseIndent(); 2038 } 2039 pw.decreaseIndent(); 2040 2041 pw.println("serviceStateMap: ComponentName -> ServiceState"); 2042 pw.increaseIndent(); 2043 for (Map.Entry<ComponentName, ServiceState> entry : 2044 userState.serviceStateMap.entrySet()) { 2045 ServiceState service = entry.getValue(); 2046 pw.println(entry.getKey() + ": " + service); 2047 2048 pw.increaseIndent(); 2049 2050 pw.println("sessionTokens:"); 2051 pw.increaseIndent(); 2052 for (IBinder token : service.sessionTokens) { 2053 pw.println("" + token); 2054 } 2055 pw.decreaseIndent(); 2056 2057 pw.println("service: " + service.service); 2058 pw.println("callback: " + service.callback); 2059 pw.println("bound: " + service.bound); 2060 pw.println("reconnecting: " + service.reconnecting); 2061 2062 pw.decreaseIndent(); 2063 } 2064 pw.decreaseIndent(); 2065 2066 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 2067 pw.increaseIndent(); 2068 for (Map.Entry<IBinder, SessionState> entry : 2069 userState.sessionStateMap.entrySet()) { 2070 SessionState session = entry.getValue(); 2071 pw.println(entry.getKey() + ": " + session); 2072 2073 pw.increaseIndent(); 2074 pw.println("inputId: " + session.inputId); 2075 pw.println("client: " + session.client); 2076 pw.println("seq: " + session.seq); 2077 pw.println("callingUid: " + session.callingUid); 2078 pw.println("userId: " + session.userId); 2079 pw.println("sessionToken: " + session.sessionToken); 2080 pw.println("session: " + session.session); 2081 pw.println("logUri: " + session.logUri); 2082 pw.println("hardwareSessionToken: " + session.hardwareSessionToken); 2083 pw.decreaseIndent(); 2084 } 2085 pw.decreaseIndent(); 2086 2087 pw.println("callbackSet:"); 2088 pw.increaseIndent(); 2089 for (ITvInputManagerCallback callback : userState.callbackSet) { 2090 pw.println(callback.toString()); 2091 } 2092 pw.decreaseIndent(); 2093 2094 pw.println("mainSessionToken: " + userState.mainSessionToken); 2095 pw.decreaseIndent(); 2096 } 2097 } 2098 mTvInputHardwareManager.dump(fd, writer, args); 2099 } 2100 } 2101 2102 private static final class UserState { 2103 // A mapping from the TV input id to its TvInputState. 2104 private Map<String, TvInputState> inputMap = new HashMap<>(); 2105 2106 // A set of all TV input packages. 2107 private final Set<String> packageSet = new HashSet<>(); 2108 2109 // A list of all TV content rating systems defined. 2110 private final List<TvContentRatingSystemInfo> 2111 contentRatingSystemList = new ArrayList<>(); 2112 2113 // A mapping from the token of a client to its state. 2114 private final Map<IBinder, ClientState> clientStateMap = new HashMap<>(); 2115 2116 // A mapping from the name of a TV input service to its state. 2117 private final Map<ComponentName, ServiceState> serviceStateMap = new HashMap<>(); 2118 2119 // A mapping from the token of a TV input session to its state. 2120 private final Map<IBinder, SessionState> sessionStateMap = new HashMap<>(); 2121 2122 // A set of callbacks. 2123 private final Set<ITvInputManagerCallback> callbackSet = new HashSet<>(); 2124 2125 // The token of a "main" TV input session. 2126 private IBinder mainSessionToken = null; 2127 2128 // Persistent data store for all internal settings maintained by the TV input manager 2129 // service. 2130 private final PersistentDataStore persistentDataStore; 2131 2132 private UserState(Context context, int userId) { 2133 persistentDataStore = new PersistentDataStore(context, userId); 2134 } 2135 } 2136 2137 private final class ClientState implements IBinder.DeathRecipient { 2138 private final List<IBinder> sessionTokens = new ArrayList<>(); 2139 2140 private IBinder clientToken; 2141 private final int userId; 2142 2143 ClientState(IBinder clientToken, int userId) { 2144 this.clientToken = clientToken; 2145 this.userId = userId; 2146 } 2147 2148 public boolean isEmpty() { 2149 return sessionTokens.isEmpty(); 2150 } 2151 2152 @Override 2153 public void binderDied() { 2154 synchronized (mLock) { 2155 UserState userState = getOrCreateUserStateLocked(userId); 2156 // DO NOT remove the client state of clientStateMap in this method. It will be 2157 // removed in releaseSessionLocked(). 2158 ClientState clientState = userState.clientStateMap.get(clientToken); 2159 if (clientState != null) { 2160 while (clientState.sessionTokens.size() > 0) { 2161 releaseSessionLocked( 2162 clientState.sessionTokens.get(0), Process.SYSTEM_UID, userId); 2163 } 2164 } 2165 clientToken = null; 2166 } 2167 } 2168 } 2169 2170 private final class ServiceState { 2171 private final List<IBinder> sessionTokens = new ArrayList<>(); 2172 private final ServiceConnection connection; 2173 private final ComponentName component; 2174 private final boolean isHardware; 2175 private final Map<String, TvInputInfo> hardwareInputMap = new HashMap<>(); 2176 2177 private ITvInputService service; 2178 private ServiceCallback callback; 2179 private boolean bound; 2180 private boolean reconnecting; 2181 2182 private ServiceState(ComponentName component, int userId) { 2183 this.component = component; 2184 this.connection = new InputServiceConnection(component, userId); 2185 this.isHardware = hasHardwarePermission(mContext.getPackageManager(), component); 2186 } 2187 } 2188 2189 private static final class TvInputState { 2190 // A TvInputInfo object which represents the TV input. 2191 private TvInputInfo info; 2192 2193 // The state of TV input. Connected by default. 2194 private int state = INPUT_STATE_CONNECTED; 2195 2196 @Override 2197 public String toString() { 2198 return "info: " + info + "; state: " + state; 2199 } 2200 } 2201 2202 private final class SessionState implements IBinder.DeathRecipient { 2203 private final String inputId; 2204 private final ComponentName componentName; 2205 private final boolean isRecordingSession; 2206 private final ITvInputClient client; 2207 private final int seq; 2208 private final int callingUid; 2209 private final int userId; 2210 private final IBinder sessionToken; 2211 private ITvInputSession session; 2212 private Uri logUri; 2213 // Not null if this session represents an external device connected to a hardware TV input. 2214 private IBinder hardwareSessionToken; 2215 2216 private SessionState(IBinder sessionToken, String inputId, ComponentName componentName, 2217 boolean isRecordingSession, ITvInputClient client, int seq, int callingUid, 2218 int userId) { 2219 this.sessionToken = sessionToken; 2220 this.inputId = inputId; 2221 this.componentName = componentName; 2222 this.isRecordingSession = isRecordingSession; 2223 this.client = client; 2224 this.seq = seq; 2225 this.callingUid = callingUid; 2226 this.userId = userId; 2227 } 2228 2229 @Override 2230 public void binderDied() { 2231 synchronized (mLock) { 2232 session = null; 2233 clearSessionAndNotifyClientLocked(this); 2234 } 2235 } 2236 } 2237 2238 private final class InputServiceConnection implements ServiceConnection { 2239 private final ComponentName mComponent; 2240 private final int mUserId; 2241 2242 private InputServiceConnection(ComponentName component, int userId) { 2243 mComponent = component; 2244 mUserId = userId; 2245 } 2246 2247 @Override 2248 public void onServiceConnected(ComponentName component, IBinder service) { 2249 if (DEBUG) { 2250 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 2251 } 2252 synchronized (mLock) { 2253 UserState userState = mUserStates.get(mUserId); 2254 if (userState == null) { 2255 // The user was removed while connecting. 2256 mContext.unbindService(this); 2257 return; 2258 } 2259 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 2260 serviceState.service = ITvInputService.Stub.asInterface(service); 2261 2262 // Register a callback, if we need to. 2263 if (serviceState.isHardware && serviceState.callback == null) { 2264 serviceState.callback = new ServiceCallback(mComponent, mUserId); 2265 try { 2266 serviceState.service.registerCallback(serviceState.callback); 2267 } catch (RemoteException e) { 2268 Slog.e(TAG, "error in registerCallback", e); 2269 } 2270 } 2271 2272 // And create sessions, if any. 2273 for (IBinder sessionToken : serviceState.sessionTokens) { 2274 createSessionInternalLocked(serviceState.service, sessionToken, mUserId); 2275 } 2276 2277 for (TvInputState inputState : userState.inputMap.values()) { 2278 if (inputState.info.getComponent().equals(component) 2279 && inputState.state != INPUT_STATE_CONNECTED) { 2280 notifyInputStateChangedLocked(userState, inputState.info.getId(), 2281 inputState.state, null); 2282 } 2283 } 2284 2285 if (serviceState.isHardware) { 2286 serviceState.hardwareInputMap.clear(); 2287 for (TvInputHardwareInfo hardware : mTvInputHardwareManager.getHardwareList()) { 2288 try { 2289 serviceState.service.notifyHardwareAdded(hardware); 2290 } catch (RemoteException e) { 2291 Slog.e(TAG, "error in notifyHardwareAdded", e); 2292 } 2293 } 2294 for (HdmiDeviceInfo device : mTvInputHardwareManager.getHdmiDeviceList()) { 2295 try { 2296 serviceState.service.notifyHdmiDeviceAdded(device); 2297 } catch (RemoteException e) { 2298 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2299 } 2300 } 2301 } 2302 } 2303 } 2304 2305 @Override 2306 public void onServiceDisconnected(ComponentName component) { 2307 if (DEBUG) { 2308 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 2309 } 2310 if (!mComponent.equals(component)) { 2311 throw new IllegalArgumentException("Mismatched ComponentName: " 2312 + mComponent + " (expected), " + component + " (actual)."); 2313 } 2314 synchronized (mLock) { 2315 UserState userState = getOrCreateUserStateLocked(mUserId); 2316 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 2317 if (serviceState != null) { 2318 serviceState.reconnecting = true; 2319 serviceState.bound = false; 2320 serviceState.service = null; 2321 serviceState.callback = null; 2322 2323 abortPendingCreateSessionRequestsLocked(serviceState, null, mUserId); 2324 } 2325 } 2326 } 2327 } 2328 2329 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 2330 private final ComponentName mComponent; 2331 private final int mUserId; 2332 2333 ServiceCallback(ComponentName component, int userId) { 2334 mComponent = component; 2335 mUserId = userId; 2336 } 2337 2338 private void ensureHardwarePermission() { 2339 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 2340 != PackageManager.PERMISSION_GRANTED) { 2341 throw new SecurityException("The caller does not have hardware permission"); 2342 } 2343 } 2344 2345 private void ensureValidInput(TvInputInfo inputInfo) { 2346 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 2347 throw new IllegalArgumentException("Invalid TvInputInfo"); 2348 } 2349 } 2350 2351 private void addHardwareInputLocked(TvInputInfo inputInfo) { 2352 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2353 serviceState.hardwareInputMap.put(inputInfo.getId(), inputInfo); 2354 buildTvInputListLocked(mUserId, null); 2355 } 2356 2357 public void addHardwareInput(int deviceId, TvInputInfo inputInfo) { 2358 ensureHardwarePermission(); 2359 ensureValidInput(inputInfo); 2360 synchronized (mLock) { 2361 mTvInputHardwareManager.addHardwareInput(deviceId, inputInfo); 2362 addHardwareInputLocked(inputInfo); 2363 } 2364 } 2365 2366 public void addHdmiInput(int id, TvInputInfo inputInfo) { 2367 ensureHardwarePermission(); 2368 ensureValidInput(inputInfo); 2369 synchronized (mLock) { 2370 mTvInputHardwareManager.addHdmiInput(id, inputInfo); 2371 addHardwareInputLocked(inputInfo); 2372 } 2373 } 2374 2375 public void removeHardwareInput(String inputId) { 2376 ensureHardwarePermission(); 2377 synchronized (mLock) { 2378 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2379 boolean removed = serviceState.hardwareInputMap.remove(inputId) != null; 2380 if (removed) { 2381 buildTvInputListLocked(mUserId, null); 2382 mTvInputHardwareManager.removeHardwareInput(inputId); 2383 } else { 2384 Slog.e(TAG, "failed to remove input " + inputId); 2385 } 2386 } 2387 } 2388 } 2389 2390 private final class SessionCallback extends ITvInputSessionCallback.Stub { 2391 private final SessionState mSessionState; 2392 private final InputChannel[] mChannels; 2393 2394 SessionCallback(SessionState sessionState, InputChannel[] channels) { 2395 mSessionState = sessionState; 2396 mChannels = channels; 2397 } 2398 2399 @Override 2400 public void onSessionCreated(ITvInputSession session, IBinder hardwareSessionToken) { 2401 if (DEBUG) { 2402 Slog.d(TAG, "onSessionCreated(inputId=" + mSessionState.inputId + ")"); 2403 } 2404 synchronized (mLock) { 2405 mSessionState.session = session; 2406 mSessionState.hardwareSessionToken = hardwareSessionToken; 2407 if (session != null && addSessionTokenToClientStateLocked(session)) { 2408 sendSessionTokenToClientLocked(mSessionState.client, 2409 mSessionState.inputId, mSessionState.sessionToken, mChannels[0], 2410 mSessionState.seq); 2411 } else { 2412 removeSessionStateLocked(mSessionState.sessionToken, mSessionState.userId); 2413 sendSessionTokenToClientLocked(mSessionState.client, 2414 mSessionState.inputId, null, null, mSessionState.seq); 2415 } 2416 mChannels[0].dispose(); 2417 } 2418 } 2419 2420 private boolean addSessionTokenToClientStateLocked(ITvInputSession session) { 2421 try { 2422 session.asBinder().linkToDeath(mSessionState, 0); 2423 } catch (RemoteException e) { 2424 Slog.e(TAG, "session process has already died", e); 2425 return false; 2426 } 2427 2428 IBinder clientToken = mSessionState.client.asBinder(); 2429 UserState userState = getOrCreateUserStateLocked(mSessionState.userId); 2430 ClientState clientState = userState.clientStateMap.get(clientToken); 2431 if (clientState == null) { 2432 clientState = new ClientState(clientToken, mSessionState.userId); 2433 try { 2434 clientToken.linkToDeath(clientState, 0); 2435 } catch (RemoteException e) { 2436 Slog.e(TAG, "client process has already died", e); 2437 return false; 2438 } 2439 userState.clientStateMap.put(clientToken, clientState); 2440 } 2441 clientState.sessionTokens.add(mSessionState.sessionToken); 2442 return true; 2443 } 2444 2445 @Override 2446 public void onChannelRetuned(Uri channelUri) { 2447 synchronized (mLock) { 2448 if (DEBUG) { 2449 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 2450 } 2451 if (mSessionState.session == null || mSessionState.client == null) { 2452 return; 2453 } 2454 try { 2455 // TODO: Consider adding this channel change in the watch log. When we do 2456 // that, how we can protect the watch log from malicious tv inputs should 2457 // be addressed. e.g. add a field which represents where the channel change 2458 // originated from. 2459 mSessionState.client.onChannelRetuned(channelUri, mSessionState.seq); 2460 } catch (RemoteException e) { 2461 Slog.e(TAG, "error in onChannelRetuned", e); 2462 } 2463 } 2464 } 2465 2466 @Override 2467 public void onTracksChanged(List<TvTrackInfo> tracks) { 2468 synchronized (mLock) { 2469 if (DEBUG) { 2470 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 2471 } 2472 if (mSessionState.session == null || mSessionState.client == null) { 2473 return; 2474 } 2475 try { 2476 mSessionState.client.onTracksChanged(tracks, mSessionState.seq); 2477 } catch (RemoteException e) { 2478 Slog.e(TAG, "error in onTracksChanged", e); 2479 } 2480 } 2481 } 2482 2483 @Override 2484 public void onTrackSelected(int type, String trackId) { 2485 synchronized (mLock) { 2486 if (DEBUG) { 2487 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 2488 } 2489 if (mSessionState.session == null || mSessionState.client == null) { 2490 return; 2491 } 2492 try { 2493 mSessionState.client.onTrackSelected(type, trackId, mSessionState.seq); 2494 } catch (RemoteException e) { 2495 Slog.e(TAG, "error in onTrackSelected", e); 2496 } 2497 } 2498 } 2499 2500 @Override 2501 public void onVideoAvailable() { 2502 synchronized (mLock) { 2503 if (DEBUG) { 2504 Slog.d(TAG, "onVideoAvailable()"); 2505 } 2506 if (mSessionState.session == null || mSessionState.client == null) { 2507 return; 2508 } 2509 try { 2510 mSessionState.client.onVideoAvailable(mSessionState.seq); 2511 } catch (RemoteException e) { 2512 Slog.e(TAG, "error in onVideoAvailable", e); 2513 } 2514 } 2515 } 2516 2517 @Override 2518 public void onVideoUnavailable(int reason) { 2519 synchronized (mLock) { 2520 if (DEBUG) { 2521 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 2522 } 2523 if (mSessionState.session == null || mSessionState.client == null) { 2524 return; 2525 } 2526 try { 2527 mSessionState.client.onVideoUnavailable(reason, mSessionState.seq); 2528 } catch (RemoteException e) { 2529 Slog.e(TAG, "error in onVideoUnavailable", e); 2530 } 2531 } 2532 } 2533 2534 @Override 2535 public void onContentAllowed() { 2536 synchronized (mLock) { 2537 if (DEBUG) { 2538 Slog.d(TAG, "onContentAllowed()"); 2539 } 2540 if (mSessionState.session == null || mSessionState.client == null) { 2541 return; 2542 } 2543 try { 2544 mSessionState.client.onContentAllowed(mSessionState.seq); 2545 } catch (RemoteException e) { 2546 Slog.e(TAG, "error in onContentAllowed", e); 2547 } 2548 } 2549 } 2550 2551 @Override 2552 public void onContentBlocked(String rating) { 2553 synchronized (mLock) { 2554 if (DEBUG) { 2555 Slog.d(TAG, "onContentBlocked()"); 2556 } 2557 if (mSessionState.session == null || mSessionState.client == null) { 2558 return; 2559 } 2560 try { 2561 mSessionState.client.onContentBlocked(rating, mSessionState.seq); 2562 } catch (RemoteException e) { 2563 Slog.e(TAG, "error in onContentBlocked", e); 2564 } 2565 } 2566 } 2567 2568 @Override 2569 public void onLayoutSurface(int left, int top, int right, int bottom) { 2570 synchronized (mLock) { 2571 if (DEBUG) { 2572 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 2573 + ", right=" + right + ", bottom=" + bottom + ",)"); 2574 } 2575 if (mSessionState.session == null || mSessionState.client == null) { 2576 return; 2577 } 2578 try { 2579 mSessionState.client.onLayoutSurface(left, top, right, bottom, 2580 mSessionState.seq); 2581 } catch (RemoteException e) { 2582 Slog.e(TAG, "error in onLayoutSurface", e); 2583 } 2584 } 2585 } 2586 2587 @Override 2588 public void onSessionEvent(String eventType, Bundle eventArgs) { 2589 synchronized (mLock) { 2590 if (DEBUG) { 2591 Slog.d(TAG, "onEvent(eventType=" + eventType + ", eventArgs=" + eventArgs 2592 + ")"); 2593 } 2594 if (mSessionState.session == null || mSessionState.client == null) { 2595 return; 2596 } 2597 try { 2598 mSessionState.client.onSessionEvent(eventType, eventArgs, mSessionState.seq); 2599 } catch (RemoteException e) { 2600 Slog.e(TAG, "error in onSessionEvent", e); 2601 } 2602 } 2603 } 2604 2605 @Override 2606 public void onTimeShiftStatusChanged(int status) { 2607 synchronized (mLock) { 2608 if (DEBUG) { 2609 Slog.d(TAG, "onTimeShiftStatusChanged(status=" + status + ")"); 2610 } 2611 if (mSessionState.session == null || mSessionState.client == null) { 2612 return; 2613 } 2614 try { 2615 mSessionState.client.onTimeShiftStatusChanged(status, mSessionState.seq); 2616 } catch (RemoteException e) { 2617 Slog.e(TAG, "error in onTimeShiftStatusChanged", e); 2618 } 2619 } 2620 } 2621 2622 @Override 2623 public void onTimeShiftStartPositionChanged(long timeMs) { 2624 synchronized (mLock) { 2625 if (DEBUG) { 2626 Slog.d(TAG, "onTimeShiftStartPositionChanged(timeMs=" + timeMs + ")"); 2627 } 2628 if (mSessionState.session == null || mSessionState.client == null) { 2629 return; 2630 } 2631 try { 2632 mSessionState.client.onTimeShiftStartPositionChanged(timeMs, mSessionState.seq); 2633 } catch (RemoteException e) { 2634 Slog.e(TAG, "error in onTimeShiftStartPositionChanged", e); 2635 } 2636 } 2637 } 2638 2639 @Override 2640 public void onTimeShiftCurrentPositionChanged(long timeMs) { 2641 synchronized (mLock) { 2642 if (DEBUG) { 2643 Slog.d(TAG, "onTimeShiftCurrentPositionChanged(timeMs=" + timeMs + ")"); 2644 } 2645 if (mSessionState.session == null || mSessionState.client == null) { 2646 return; 2647 } 2648 try { 2649 mSessionState.client.onTimeShiftCurrentPositionChanged(timeMs, 2650 mSessionState.seq); 2651 } catch (RemoteException e) { 2652 Slog.e(TAG, "error in onTimeShiftCurrentPositionChanged", e); 2653 } 2654 } 2655 } 2656 2657 // For the recording session only 2658 @Override 2659 public void onTuned(Uri channelUri) { 2660 synchronized (mLock) { 2661 if (DEBUG) { 2662 Slog.d(TAG, "onTuned()"); 2663 } 2664 if (mSessionState.session == null || mSessionState.client == null) { 2665 return; 2666 } 2667 try { 2668 mSessionState.client.onTuned(mSessionState.seq, channelUri); 2669 } catch (RemoteException e) { 2670 Slog.e(TAG, "error in onTuned", e); 2671 } 2672 } 2673 } 2674 2675 // For the recording session only 2676 @Override 2677 public void onRecordingStopped(Uri recordedProgramUri) { 2678 synchronized (mLock) { 2679 if (DEBUG) { 2680 Slog.d(TAG, "onRecordingStopped(recordedProgramUri=" + recordedProgramUri 2681 + ")"); 2682 } 2683 if (mSessionState.session == null || mSessionState.client == null) { 2684 return; 2685 } 2686 try { 2687 mSessionState.client.onRecordingStopped(recordedProgramUri, mSessionState.seq); 2688 } catch (RemoteException e) { 2689 Slog.e(TAG, "error in onRecordingStopped", e); 2690 } 2691 } 2692 } 2693 2694 // For the recording session only 2695 @Override 2696 public void onError(int error) { 2697 synchronized (mLock) { 2698 if (DEBUG) { 2699 Slog.d(TAG, "onError(error=" + error + ")"); 2700 } 2701 if (mSessionState.session == null || mSessionState.client == null) { 2702 return; 2703 } 2704 try { 2705 mSessionState.client.onError(error, mSessionState.seq); 2706 } catch (RemoteException e) { 2707 Slog.e(TAG, "error in onError", e); 2708 } 2709 } 2710 } 2711 } 2712 2713 private static final class WatchLogHandler extends Handler { 2714 // There are only two kinds of watch events that can happen on the system: 2715 // 1. The current TV input session is tuned to a new channel. 2716 // 2. The session is released for some reason. 2717 // The former indicates the end of the previous log entry, if any, followed by the start of 2718 // a new entry. The latter indicates the end of the most recent entry for the given session. 2719 // Here the system supplies the database the smallest set of information only that is 2720 // sufficient to consolidate the log entries while minimizing database operations in the 2721 // system service. 2722 static final int MSG_LOG_WATCH_START = 1; 2723 static final int MSG_LOG_WATCH_END = 2; 2724 static final int MSG_SWITCH_CONTENT_RESOLVER = 3; 2725 2726 private ContentResolver mContentResolver; 2727 2728 WatchLogHandler(ContentResolver contentResolver, Looper looper) { 2729 super(looper); 2730 mContentResolver = contentResolver; 2731 } 2732 2733 @Override 2734 public void handleMessage(Message msg) { 2735 switch (msg.what) { 2736 case MSG_LOG_WATCH_START: { 2737 SomeArgs args = (SomeArgs) msg.obj; 2738 String packageName = (String) args.arg1; 2739 long watchStartTime = (long) args.arg2; 2740 long channelId = (long) args.arg3; 2741 Bundle tuneParams = (Bundle) args.arg4; 2742 IBinder sessionToken = (IBinder) args.arg5; 2743 2744 ContentValues values = new ContentValues(); 2745 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 2746 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2747 watchStartTime); 2748 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2749 if (tuneParams != null) { 2750 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_TUNE_PARAMS, 2751 encodeTuneParams(tuneParams)); 2752 } 2753 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2754 sessionToken.toString()); 2755 2756 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2757 args.recycle(); 2758 break; 2759 } 2760 case MSG_LOG_WATCH_END: { 2761 SomeArgs args = (SomeArgs) msg.obj; 2762 IBinder sessionToken = (IBinder) args.arg1; 2763 long watchEndTime = (long) args.arg2; 2764 2765 ContentValues values = new ContentValues(); 2766 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2767 watchEndTime); 2768 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2769 sessionToken.toString()); 2770 2771 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2772 args.recycle(); 2773 break; 2774 } 2775 case MSG_SWITCH_CONTENT_RESOLVER: { 2776 mContentResolver = (ContentResolver) msg.obj; 2777 break; 2778 } 2779 default: { 2780 Slog.w(TAG, "unhandled message code: " + msg.what); 2781 break; 2782 } 2783 } 2784 } 2785 2786 private String encodeTuneParams(Bundle tuneParams) { 2787 StringBuilder builder = new StringBuilder(); 2788 Set<String> keySet = tuneParams.keySet(); 2789 Iterator<String> it = keySet.iterator(); 2790 while (it.hasNext()) { 2791 String key = it.next(); 2792 Object value = tuneParams.get(key); 2793 if (value == null) { 2794 continue; 2795 } 2796 builder.append(replaceEscapeCharacters(key)); 2797 builder.append("="); 2798 builder.append(replaceEscapeCharacters(value.toString())); 2799 if (it.hasNext()) { 2800 builder.append(", "); 2801 } 2802 } 2803 return builder.toString(); 2804 } 2805 2806 private String replaceEscapeCharacters(String src) { 2807 final char ESCAPE_CHARACTER = '%'; 2808 final String ENCODING_TARGET_CHARACTERS = "%=,"; 2809 StringBuilder builder = new StringBuilder(); 2810 for (char ch : src.toCharArray()) { 2811 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 2812 builder.append(ESCAPE_CHARACTER); 2813 } 2814 builder.append(ch); 2815 } 2816 return builder.toString(); 2817 } 2818 } 2819 2820 private final class HardwareListener implements TvInputHardwareManager.Listener { 2821 @Override 2822 public void onStateChanged(String inputId, int state) { 2823 synchronized (mLock) { 2824 setStateLocked(inputId, state, mCurrentUserId); 2825 } 2826 } 2827 2828 @Override 2829 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2830 synchronized (mLock) { 2831 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2832 // Broadcast the event to all hardware inputs. 2833 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2834 if (!serviceState.isHardware || serviceState.service == null) continue; 2835 try { 2836 serviceState.service.notifyHardwareAdded(info); 2837 } catch (RemoteException e) { 2838 Slog.e(TAG, "error in notifyHardwareAdded", e); 2839 } 2840 } 2841 } 2842 } 2843 2844 @Override 2845 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2846 synchronized (mLock) { 2847 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2848 // Broadcast the event to all hardware inputs. 2849 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2850 if (!serviceState.isHardware || serviceState.service == null) continue; 2851 try { 2852 serviceState.service.notifyHardwareRemoved(info); 2853 } catch (RemoteException e) { 2854 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2855 } 2856 } 2857 } 2858 } 2859 2860 @Override 2861 public void onHdmiDeviceAdded(HdmiDeviceInfo deviceInfo) { 2862 synchronized (mLock) { 2863 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2864 // Broadcast the event to all hardware inputs. 2865 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2866 if (!serviceState.isHardware || serviceState.service == null) continue; 2867 try { 2868 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 2869 } catch (RemoteException e) { 2870 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2871 } 2872 } 2873 } 2874 } 2875 2876 @Override 2877 public void onHdmiDeviceRemoved(HdmiDeviceInfo deviceInfo) { 2878 synchronized (mLock) { 2879 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2880 // Broadcast the event to all hardware inputs. 2881 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2882 if (!serviceState.isHardware || serviceState.service == null) continue; 2883 try { 2884 serviceState.service.notifyHdmiDeviceRemoved(deviceInfo); 2885 } catch (RemoteException e) { 2886 Slog.e(TAG, "error in notifyHdmiDeviceRemoved", e); 2887 } 2888 } 2889 } 2890 } 2891 2892 @Override 2893 public void onHdmiDeviceUpdated(String inputId, HdmiDeviceInfo deviceInfo) { 2894 synchronized (mLock) { 2895 Integer state; 2896 switch (deviceInfo.getDevicePowerStatus()) { 2897 case HdmiControlManager.POWER_STATUS_ON: 2898 state = INPUT_STATE_CONNECTED; 2899 break; 2900 case HdmiControlManager.POWER_STATUS_STANDBY: 2901 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_ON: 2902 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_STANDBY: 2903 state = INPUT_STATE_CONNECTED_STANDBY; 2904 break; 2905 case HdmiControlManager.POWER_STATUS_UNKNOWN: 2906 default: 2907 state = null; 2908 break; 2909 } 2910 if (state != null) { 2911 setStateLocked(inputId, state, mCurrentUserId); 2912 } 2913 } 2914 } 2915 } 2916 2917 private static class SessionNotFoundException extends IllegalArgumentException { 2918 public SessionNotFoundException(String name) { 2919 super(name); 2920 } 2921 } 2922 } 2923