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 (mContext.checkCallingPermission( 1222 android.Manifest.permission.CHANGE_HDMI_CEC_ACTIVE_SOURCE) 1223 != PackageManager.PERMISSION_GRANTED) { 1224 throw new SecurityException( 1225 "The caller does not have CHANGE_HDMI_CEC_ACTIVE_SOURCE permission"); 1226 } 1227 if (DEBUG) { 1228 Slog.d(TAG, "setMainSession(sessionToken=" + sessionToken + ")"); 1229 } 1230 final int callingUid = Binder.getCallingUid(); 1231 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1232 userId, "setMainSession"); 1233 final long identity = Binder.clearCallingIdentity(); 1234 try { 1235 synchronized (mLock) { 1236 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1237 if (userState.mainSessionToken == sessionToken) { 1238 return; 1239 } 1240 if (DEBUG) { 1241 Slog.d(TAG, "mainSessionToken=" + sessionToken); 1242 } 1243 IBinder oldMainSessionToken = userState.mainSessionToken; 1244 userState.mainSessionToken = sessionToken; 1245 1246 // Inform the new main session first. 1247 // See {@link TvInputService.Session#onSetMain}. 1248 if (sessionToken != null) { 1249 setMainLocked(sessionToken, true, callingUid, userId); 1250 } 1251 if (oldMainSessionToken != null) { 1252 setMainLocked(oldMainSessionToken, false, Process.SYSTEM_UID, userId); 1253 } 1254 } 1255 } finally { 1256 Binder.restoreCallingIdentity(identity); 1257 } 1258 } 1259 1260 @Override 1261 public void setSurface(IBinder sessionToken, Surface surface, int userId) { 1262 final int callingUid = Binder.getCallingUid(); 1263 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1264 userId, "setSurface"); 1265 final long identity = Binder.clearCallingIdentity(); 1266 try { 1267 synchronized (mLock) { 1268 try { 1269 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1270 resolvedUserId); 1271 if (sessionState.hardwareSessionToken == null) { 1272 getSessionLocked(sessionState).setSurface(surface); 1273 } else { 1274 getSessionLocked(sessionState.hardwareSessionToken, 1275 Process.SYSTEM_UID, resolvedUserId).setSurface(surface); 1276 } 1277 } catch (RemoteException | SessionNotFoundException e) { 1278 Slog.e(TAG, "error in setSurface", e); 1279 } 1280 } 1281 } finally { 1282 if (surface != null) { 1283 // surface is not used in TvInputManagerService. 1284 surface.release(); 1285 } 1286 Binder.restoreCallingIdentity(identity); 1287 } 1288 } 1289 1290 @Override 1291 public void dispatchSurfaceChanged(IBinder sessionToken, int format, int width, 1292 int height, int userId) { 1293 final int callingUid = Binder.getCallingUid(); 1294 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1295 userId, "dispatchSurfaceChanged"); 1296 final long identity = Binder.clearCallingIdentity(); 1297 try { 1298 synchronized (mLock) { 1299 try { 1300 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1301 resolvedUserId); 1302 getSessionLocked(sessionState).dispatchSurfaceChanged(format, width, 1303 height); 1304 if (sessionState.hardwareSessionToken != null) { 1305 getSessionLocked(sessionState.hardwareSessionToken, Process.SYSTEM_UID, 1306 resolvedUserId).dispatchSurfaceChanged(format, width, height); 1307 } 1308 } catch (RemoteException | SessionNotFoundException e) { 1309 Slog.e(TAG, "error in dispatchSurfaceChanged", e); 1310 } 1311 } 1312 } finally { 1313 Binder.restoreCallingIdentity(identity); 1314 } 1315 } 1316 1317 @Override 1318 public void setVolume(IBinder sessionToken, float volume, int userId) { 1319 final float REMOTE_VOLUME_ON = 1.0f; 1320 final float REMOTE_VOLUME_OFF = 0f; 1321 final int callingUid = Binder.getCallingUid(); 1322 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1323 userId, "setVolume"); 1324 final long identity = Binder.clearCallingIdentity(); 1325 try { 1326 synchronized (mLock) { 1327 try { 1328 SessionState sessionState = getSessionStateLocked(sessionToken, callingUid, 1329 resolvedUserId); 1330 getSessionLocked(sessionState).setVolume(volume); 1331 if (sessionState.hardwareSessionToken != null) { 1332 // Here, we let the hardware session know only whether volume is on or 1333 // off to prevent that the volume is controlled in the both side. 1334 getSessionLocked(sessionState.hardwareSessionToken, 1335 Process.SYSTEM_UID, resolvedUserId).setVolume((volume > 0.0f) 1336 ? REMOTE_VOLUME_ON : REMOTE_VOLUME_OFF); 1337 } 1338 } catch (RemoteException | SessionNotFoundException e) { 1339 Slog.e(TAG, "error in setVolume", e); 1340 } 1341 } 1342 } finally { 1343 Binder.restoreCallingIdentity(identity); 1344 } 1345 } 1346 1347 @Override 1348 public void tune(IBinder sessionToken, final Uri channelUri, Bundle params, int userId) { 1349 final int callingUid = Binder.getCallingUid(); 1350 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1351 userId, "tune"); 1352 final long identity = Binder.clearCallingIdentity(); 1353 try { 1354 synchronized (mLock) { 1355 try { 1356 getSessionLocked(sessionToken, callingUid, resolvedUserId).tune( 1357 channelUri, params); 1358 if (TvContract.isChannelUriForPassthroughInput(channelUri)) { 1359 // Do not log the watch history for passthrough inputs. 1360 return; 1361 } 1362 1363 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1364 SessionState sessionState = userState.sessionStateMap.get(sessionToken); 1365 if (sessionState.isRecordingSession) { 1366 return; 1367 } 1368 1369 // Log the start of watch. 1370 SomeArgs args = SomeArgs.obtain(); 1371 args.arg1 = sessionState.componentName.getPackageName(); 1372 args.arg2 = System.currentTimeMillis(); 1373 args.arg3 = ContentUris.parseId(channelUri); 1374 args.arg4 = params; 1375 args.arg5 = sessionToken; 1376 mWatchLogHandler.obtainMessage(WatchLogHandler.MSG_LOG_WATCH_START, args) 1377 .sendToTarget(); 1378 } catch (RemoteException | SessionNotFoundException e) { 1379 Slog.e(TAG, "error in tune", e); 1380 } 1381 } 1382 } finally { 1383 Binder.restoreCallingIdentity(identity); 1384 } 1385 } 1386 1387 @Override 1388 public void unblockContent( 1389 IBinder sessionToken, String unblockedRating, int userId) { 1390 ensureParentalControlsPermission(); 1391 final int callingUid = Binder.getCallingUid(); 1392 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1393 userId, "unblockContent"); 1394 final long identity = Binder.clearCallingIdentity(); 1395 try { 1396 synchronized (mLock) { 1397 try { 1398 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1399 .unblockContent(unblockedRating); 1400 } catch (RemoteException | SessionNotFoundException e) { 1401 Slog.e(TAG, "error in unblockContent", e); 1402 } 1403 } 1404 } finally { 1405 Binder.restoreCallingIdentity(identity); 1406 } 1407 } 1408 1409 @Override 1410 public void setCaptionEnabled(IBinder sessionToken, boolean enabled, int userId) { 1411 final int callingUid = Binder.getCallingUid(); 1412 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1413 userId, "setCaptionEnabled"); 1414 final long identity = Binder.clearCallingIdentity(); 1415 try { 1416 synchronized (mLock) { 1417 try { 1418 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1419 .setCaptionEnabled(enabled); 1420 } catch (RemoteException | SessionNotFoundException e) { 1421 Slog.e(TAG, "error in setCaptionEnabled", e); 1422 } 1423 } 1424 } finally { 1425 Binder.restoreCallingIdentity(identity); 1426 } 1427 } 1428 1429 @Override 1430 public void selectTrack(IBinder sessionToken, int type, String trackId, int userId) { 1431 final int callingUid = Binder.getCallingUid(); 1432 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1433 userId, "selectTrack"); 1434 final long identity = Binder.clearCallingIdentity(); 1435 try { 1436 synchronized (mLock) { 1437 try { 1438 getSessionLocked(sessionToken, callingUid, resolvedUserId).selectTrack( 1439 type, trackId); 1440 } catch (RemoteException | SessionNotFoundException e) { 1441 Slog.e(TAG, "error in selectTrack", e); 1442 } 1443 } 1444 } finally { 1445 Binder.restoreCallingIdentity(identity); 1446 } 1447 } 1448 1449 @Override 1450 public void sendAppPrivateCommand(IBinder sessionToken, String command, Bundle data, 1451 int userId) { 1452 final int callingUid = Binder.getCallingUid(); 1453 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1454 userId, "sendAppPrivateCommand"); 1455 final long identity = Binder.clearCallingIdentity(); 1456 try { 1457 synchronized (mLock) { 1458 try { 1459 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1460 .appPrivateCommand(command, data); 1461 } catch (RemoteException | SessionNotFoundException e) { 1462 Slog.e(TAG, "error in appPrivateCommand", e); 1463 } 1464 } 1465 } finally { 1466 Binder.restoreCallingIdentity(identity); 1467 } 1468 } 1469 1470 @Override 1471 public void createOverlayView(IBinder sessionToken, IBinder windowToken, Rect frame, 1472 int userId) { 1473 final int callingUid = Binder.getCallingUid(); 1474 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1475 userId, "createOverlayView"); 1476 final long identity = Binder.clearCallingIdentity(); 1477 try { 1478 synchronized (mLock) { 1479 try { 1480 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1481 .createOverlayView(windowToken, frame); 1482 } catch (RemoteException | SessionNotFoundException e) { 1483 Slog.e(TAG, "error in createOverlayView", e); 1484 } 1485 } 1486 } finally { 1487 Binder.restoreCallingIdentity(identity); 1488 } 1489 } 1490 1491 @Override 1492 public void relayoutOverlayView(IBinder sessionToken, Rect frame, int userId) { 1493 final int callingUid = Binder.getCallingUid(); 1494 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1495 userId, "relayoutOverlayView"); 1496 final long identity = Binder.clearCallingIdentity(); 1497 try { 1498 synchronized (mLock) { 1499 try { 1500 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1501 .relayoutOverlayView(frame); 1502 } catch (RemoteException | SessionNotFoundException e) { 1503 Slog.e(TAG, "error in relayoutOverlayView", e); 1504 } 1505 } 1506 } finally { 1507 Binder.restoreCallingIdentity(identity); 1508 } 1509 } 1510 1511 @Override 1512 public void removeOverlayView(IBinder sessionToken, int userId) { 1513 final int callingUid = Binder.getCallingUid(); 1514 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1515 userId, "removeOverlayView"); 1516 final long identity = Binder.clearCallingIdentity(); 1517 try { 1518 synchronized (mLock) { 1519 try { 1520 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1521 .removeOverlayView(); 1522 } catch (RemoteException | SessionNotFoundException e) { 1523 Slog.e(TAG, "error in removeOverlayView", e); 1524 } 1525 } 1526 } finally { 1527 Binder.restoreCallingIdentity(identity); 1528 } 1529 } 1530 1531 @Override 1532 public void timeShiftPlay(IBinder sessionToken, final Uri recordedProgramUri, int userId) { 1533 final int callingUid = Binder.getCallingUid(); 1534 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1535 userId, "timeShiftPlay"); 1536 final long identity = Binder.clearCallingIdentity(); 1537 try { 1538 synchronized (mLock) { 1539 try { 1540 getSessionLocked(sessionToken, callingUid, resolvedUserId).timeShiftPlay( 1541 recordedProgramUri); 1542 } catch (RemoteException | SessionNotFoundException e) { 1543 Slog.e(TAG, "error in timeShiftPlay", e); 1544 } 1545 } 1546 } finally { 1547 Binder.restoreCallingIdentity(identity); 1548 } 1549 } 1550 1551 @Override 1552 public void timeShiftPause(IBinder sessionToken, int userId) { 1553 final int callingUid = Binder.getCallingUid(); 1554 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1555 userId, "timeShiftPause"); 1556 final long identity = Binder.clearCallingIdentity(); 1557 try { 1558 synchronized (mLock) { 1559 try { 1560 getSessionLocked(sessionToken, callingUid, resolvedUserId).timeShiftPause(); 1561 } catch (RemoteException | SessionNotFoundException e) { 1562 Slog.e(TAG, "error in timeShiftPause", e); 1563 } 1564 } 1565 } finally { 1566 Binder.restoreCallingIdentity(identity); 1567 } 1568 } 1569 1570 @Override 1571 public void timeShiftResume(IBinder sessionToken, int userId) { 1572 final int callingUid = Binder.getCallingUid(); 1573 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1574 userId, "timeShiftResume"); 1575 final long identity = Binder.clearCallingIdentity(); 1576 try { 1577 synchronized (mLock) { 1578 try { 1579 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1580 .timeShiftResume(); 1581 } catch (RemoteException | SessionNotFoundException e) { 1582 Slog.e(TAG, "error in timeShiftResume", e); 1583 } 1584 } 1585 } finally { 1586 Binder.restoreCallingIdentity(identity); 1587 } 1588 } 1589 1590 @Override 1591 public void timeShiftSeekTo(IBinder sessionToken, long timeMs, int userId) { 1592 final int callingUid = Binder.getCallingUid(); 1593 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1594 userId, "timeShiftSeekTo"); 1595 final long identity = Binder.clearCallingIdentity(); 1596 try { 1597 synchronized (mLock) { 1598 try { 1599 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1600 .timeShiftSeekTo(timeMs); 1601 } catch (RemoteException | SessionNotFoundException e) { 1602 Slog.e(TAG, "error in timeShiftSeekTo", e); 1603 } 1604 } 1605 } finally { 1606 Binder.restoreCallingIdentity(identity); 1607 } 1608 } 1609 1610 @Override 1611 public void timeShiftSetPlaybackParams(IBinder sessionToken, PlaybackParams params, 1612 int userId) { 1613 final int callingUid = Binder.getCallingUid(); 1614 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1615 userId, "timeShiftSetPlaybackParams"); 1616 final long identity = Binder.clearCallingIdentity(); 1617 try { 1618 synchronized (mLock) { 1619 try { 1620 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1621 .timeShiftSetPlaybackParams(params); 1622 } catch (RemoteException | SessionNotFoundException e) { 1623 Slog.e(TAG, "error in timeShiftSetPlaybackParams", e); 1624 } 1625 } 1626 } finally { 1627 Binder.restoreCallingIdentity(identity); 1628 } 1629 } 1630 1631 @Override 1632 public void timeShiftEnablePositionTracking(IBinder sessionToken, boolean enable, 1633 int userId) { 1634 final int callingUid = Binder.getCallingUid(); 1635 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1636 userId, "timeShiftEnablePositionTracking"); 1637 final long identity = Binder.clearCallingIdentity(); 1638 try { 1639 synchronized (mLock) { 1640 try { 1641 getSessionLocked(sessionToken, callingUid, resolvedUserId) 1642 .timeShiftEnablePositionTracking(enable); 1643 } catch (RemoteException | SessionNotFoundException e) { 1644 Slog.e(TAG, "error in timeShiftEnablePositionTracking", e); 1645 } 1646 } 1647 } finally { 1648 Binder.restoreCallingIdentity(identity); 1649 } 1650 } 1651 1652 @Override 1653 public void startRecording(IBinder sessionToken, @Nullable Uri programUri, int userId) { 1654 final int callingUid = Binder.getCallingUid(); 1655 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1656 userId, "startRecording"); 1657 final long identity = Binder.clearCallingIdentity(); 1658 try { 1659 synchronized (mLock) { 1660 try { 1661 getSessionLocked(sessionToken, callingUid, resolvedUserId).startRecording( 1662 programUri); 1663 } catch (RemoteException | SessionNotFoundException e) { 1664 Slog.e(TAG, "error in startRecording", e); 1665 } 1666 } 1667 } finally { 1668 Binder.restoreCallingIdentity(identity); 1669 } 1670 } 1671 1672 @Override 1673 public void stopRecording(IBinder sessionToken, int userId) { 1674 final int callingUid = Binder.getCallingUid(); 1675 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1676 userId, "stopRecording"); 1677 final long identity = Binder.clearCallingIdentity(); 1678 try { 1679 synchronized (mLock) { 1680 try { 1681 getSessionLocked(sessionToken, callingUid, resolvedUserId).stopRecording(); 1682 } catch (RemoteException | SessionNotFoundException e) { 1683 Slog.e(TAG, "error in stopRecording", e); 1684 } 1685 } 1686 } finally { 1687 Binder.restoreCallingIdentity(identity); 1688 } 1689 } 1690 1691 @Override 1692 public List<TvInputHardwareInfo> getHardwareList() throws RemoteException { 1693 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1694 != PackageManager.PERMISSION_GRANTED) { 1695 return null; 1696 } 1697 1698 final long identity = Binder.clearCallingIdentity(); 1699 try { 1700 return mTvInputHardwareManager.getHardwareList(); 1701 } finally { 1702 Binder.restoreCallingIdentity(identity); 1703 } 1704 } 1705 1706 @Override 1707 public ITvInputHardware acquireTvInputHardware(int deviceId, 1708 ITvInputHardwareCallback callback, TvInputInfo info, int userId) 1709 throws RemoteException { 1710 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1711 != PackageManager.PERMISSION_GRANTED) { 1712 return null; 1713 } 1714 1715 final long identity = Binder.clearCallingIdentity(); 1716 final int callingUid = Binder.getCallingUid(); 1717 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1718 userId, "acquireTvInputHardware"); 1719 try { 1720 return mTvInputHardwareManager.acquireHardware( 1721 deviceId, callback, info, callingUid, resolvedUserId); 1722 } finally { 1723 Binder.restoreCallingIdentity(identity); 1724 } 1725 } 1726 1727 @Override 1728 public void releaseTvInputHardware(int deviceId, ITvInputHardware hardware, int userId) 1729 throws RemoteException { 1730 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 1731 != PackageManager.PERMISSION_GRANTED) { 1732 return; 1733 } 1734 1735 final long identity = Binder.clearCallingIdentity(); 1736 final int callingUid = Binder.getCallingUid(); 1737 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1738 userId, "releaseTvInputHardware"); 1739 try { 1740 mTvInputHardwareManager.releaseHardware( 1741 deviceId, hardware, callingUid, resolvedUserId); 1742 } finally { 1743 Binder.restoreCallingIdentity(identity); 1744 } 1745 } 1746 1747 @Override 1748 public List<DvbDeviceInfo> getDvbDeviceList() throws RemoteException { 1749 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1750 != PackageManager.PERMISSION_GRANTED) { 1751 throw new SecurityException("Requires DVB_DEVICE permission"); 1752 } 1753 1754 final long identity = Binder.clearCallingIdentity(); 1755 try { 1756 // Pattern1: /dev/dvb%d.frontend%d 1757 ArrayList<DvbDeviceInfo> deviceInfosFromPattern1 = new ArrayList<>(); 1758 File devDirectory = new File("/dev"); 1759 boolean dvbDirectoryFound = false; 1760 for (String fileName : devDirectory.list()) { 1761 Matcher matcher = sFrontEndDevicePattern.matcher(fileName); 1762 if (matcher.find()) { 1763 int adapterId = Integer.parseInt(matcher.group(1)); 1764 int deviceId = Integer.parseInt(matcher.group(2)); 1765 deviceInfosFromPattern1.add(new DvbDeviceInfo(adapterId, deviceId)); 1766 } 1767 if (TextUtils.equals("dvb", fileName)) { 1768 dvbDirectoryFound = true; 1769 } 1770 } 1771 if (!dvbDirectoryFound) { 1772 return Collections.unmodifiableList(deviceInfosFromPattern1); 1773 } 1774 File dvbDirectory = new File(DVB_DIRECTORY); 1775 // Pattern2: /dev/dvb/adapter%d/frontend%d 1776 ArrayList<DvbDeviceInfo> deviceInfosFromPattern2 = new ArrayList<>(); 1777 for (String fileNameInDvb : dvbDirectory.list()) { 1778 Matcher adapterMatcher = sAdapterDirPattern.matcher(fileNameInDvb); 1779 if (adapterMatcher.find()) { 1780 int adapterId = Integer.parseInt(adapterMatcher.group(1)); 1781 File adapterDirectory = new File(DVB_DIRECTORY + "/" + fileNameInDvb); 1782 for (String fileNameInAdapter : adapterDirectory.list()) { 1783 Matcher frontendMatcher = sFrontEndInAdapterDirPattern.matcher( 1784 fileNameInAdapter); 1785 if (frontendMatcher.find()) { 1786 int deviceId = Integer.parseInt(frontendMatcher.group(1)); 1787 deviceInfosFromPattern2.add( 1788 new DvbDeviceInfo(adapterId, deviceId)); 1789 } 1790 } 1791 } 1792 } 1793 return deviceInfosFromPattern2.isEmpty() 1794 ? Collections.unmodifiableList(deviceInfosFromPattern1) 1795 : Collections.unmodifiableList(deviceInfosFromPattern2); 1796 } finally { 1797 Binder.restoreCallingIdentity(identity); 1798 } 1799 } 1800 1801 @Override 1802 public ParcelFileDescriptor openDvbDevice(DvbDeviceInfo info, int device) 1803 throws RemoteException { 1804 if (mContext.checkCallingPermission(android.Manifest.permission.DVB_DEVICE) 1805 != PackageManager.PERMISSION_GRANTED) { 1806 throw new SecurityException("Requires DVB_DEVICE permission"); 1807 } 1808 1809 File devDirectory = new File("/dev"); 1810 boolean dvbDeviceFound = false; 1811 for (String fileName : devDirectory.list()) { 1812 if (TextUtils.equals("dvb", fileName)) { 1813 File dvbDirectory = new File(DVB_DIRECTORY); 1814 for (String fileNameInDvb : dvbDirectory.list()) { 1815 Matcher adapterMatcher = sAdapterDirPattern.matcher(fileNameInDvb); 1816 if (adapterMatcher.find()) { 1817 File adapterDirectory = new File(DVB_DIRECTORY + "/" + fileNameInDvb); 1818 for (String fileNameInAdapter : adapterDirectory.list()) { 1819 Matcher frontendMatcher = sFrontEndInAdapterDirPattern.matcher( 1820 fileNameInAdapter); 1821 if (frontendMatcher.find()) { 1822 dvbDeviceFound = true; 1823 break; 1824 } 1825 } 1826 } 1827 if (dvbDeviceFound) { 1828 break; 1829 } 1830 } 1831 } 1832 if (dvbDeviceFound) { 1833 break; 1834 } 1835 } 1836 1837 final long identity = Binder.clearCallingIdentity(); 1838 try { 1839 String deviceFileName; 1840 switch (device) { 1841 case TvInputManager.DVB_DEVICE_DEMUX: 1842 deviceFileName = String.format(dvbDeviceFound 1843 ? "/dev/dvb/adapter%d/demux%d" : "/dev/dvb%d.demux%d", 1844 info.getAdapterId(), info.getDeviceId()); 1845 break; 1846 case TvInputManager.DVB_DEVICE_DVR: 1847 deviceFileName = String.format(dvbDeviceFound 1848 ? "/dev/dvb/adapter%d/dvr%d" : "/dev/dvb%d.dvr%d", 1849 info.getAdapterId(), info.getDeviceId()); 1850 break; 1851 case TvInputManager.DVB_DEVICE_FRONTEND: 1852 deviceFileName = String.format(dvbDeviceFound 1853 ? "/dev/dvb/adapter%d/frontend%d" : "/dev/dvb%d.frontend%d", 1854 info.getAdapterId(), info.getDeviceId()); 1855 break; 1856 default: 1857 throw new IllegalArgumentException("Invalid DVB device: " + device); 1858 } 1859 try { 1860 // The DVB frontend device only needs to be opened in read/write mode, which 1861 // allows performing tuning operations. The DVB demux and DVR device are enough 1862 // to be opened in read only mode. 1863 return ParcelFileDescriptor.open(new File(deviceFileName), 1864 TvInputManager.DVB_DEVICE_FRONTEND == device 1865 ? ParcelFileDescriptor.MODE_READ_WRITE 1866 : ParcelFileDescriptor.MODE_READ_ONLY); 1867 } catch (FileNotFoundException e) { 1868 return null; 1869 } 1870 } finally { 1871 Binder.restoreCallingIdentity(identity); 1872 } 1873 } 1874 1875 @Override 1876 public List<TvStreamConfig> getAvailableTvStreamConfigList(String inputId, int userId) 1877 throws RemoteException { 1878 if (mContext.checkCallingPermission( 1879 android.Manifest.permission.CAPTURE_TV_INPUT) 1880 != PackageManager.PERMISSION_GRANTED) { 1881 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1882 } 1883 1884 final long identity = Binder.clearCallingIdentity(); 1885 final int callingUid = Binder.getCallingUid(); 1886 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1887 userId, "getAvailableTvStreamConfigList"); 1888 try { 1889 return mTvInputHardwareManager.getAvailableTvStreamConfigList( 1890 inputId, callingUid, resolvedUserId); 1891 } finally { 1892 Binder.restoreCallingIdentity(identity); 1893 } 1894 } 1895 1896 @Override 1897 public boolean captureFrame(String inputId, Surface surface, TvStreamConfig config, 1898 int userId) 1899 throws RemoteException { 1900 if (mContext.checkCallingPermission( 1901 android.Manifest.permission.CAPTURE_TV_INPUT) 1902 != PackageManager.PERMISSION_GRANTED) { 1903 throw new SecurityException("Requires CAPTURE_TV_INPUT permission"); 1904 } 1905 1906 final long identity = Binder.clearCallingIdentity(); 1907 final int callingUid = Binder.getCallingUid(); 1908 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1909 userId, "captureFrame"); 1910 try { 1911 String hardwareInputId = null; 1912 synchronized (mLock) { 1913 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1914 if (userState.inputMap.get(inputId) == null) { 1915 Slog.e(TAG, "input not found for " + inputId); 1916 return false; 1917 } 1918 for (SessionState sessionState : userState.sessionStateMap.values()) { 1919 if (sessionState.inputId.equals(inputId) 1920 && sessionState.hardwareSessionToken != null) { 1921 hardwareInputId = userState.sessionStateMap.get( 1922 sessionState.hardwareSessionToken).inputId; 1923 break; 1924 } 1925 } 1926 } 1927 return mTvInputHardwareManager.captureFrame( 1928 (hardwareInputId != null) ? hardwareInputId : inputId, 1929 surface, config, callingUid, resolvedUserId); 1930 } finally { 1931 Binder.restoreCallingIdentity(identity); 1932 } 1933 } 1934 1935 @Override 1936 public boolean isSingleSessionActive(int userId) throws RemoteException { 1937 final long identity = Binder.clearCallingIdentity(); 1938 final int callingUid = Binder.getCallingUid(); 1939 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1940 userId, "isSingleSessionActive"); 1941 try { 1942 synchronized (mLock) { 1943 UserState userState = getOrCreateUserStateLocked(resolvedUserId); 1944 if (userState.sessionStateMap.size() == 1) { 1945 return true; 1946 } else if (userState.sessionStateMap.size() == 2) { 1947 SessionState[] sessionStates = userState.sessionStateMap.values().toArray( 1948 new SessionState[2]); 1949 // Check if there is a wrapper input. 1950 if (sessionStates[0].hardwareSessionToken != null 1951 || sessionStates[1].hardwareSessionToken != null) { 1952 return true; 1953 } 1954 } 1955 return false; 1956 } 1957 } finally { 1958 Binder.restoreCallingIdentity(identity); 1959 } 1960 } 1961 1962 @Override 1963 public void requestChannelBrowsable(Uri channelUri, int userId) 1964 throws RemoteException { 1965 final String callingPackageName = getCallingPackageName(); 1966 final long identity = Binder.clearCallingIdentity(); 1967 final int callingUid = Binder.getCallingUid(); 1968 final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid, 1969 userId, "requestChannelBrowsable"); 1970 try { 1971 Intent intent = new Intent(TvContract.ACTION_CHANNEL_BROWSABLE_REQUESTED); 1972 List<ResolveInfo> list = getContext().getPackageManager() 1973 .queryBroadcastReceivers(intent, 0); 1974 if (list != null) { 1975 for (ResolveInfo info : list) { 1976 String receiverPackageName = info.activityInfo.packageName; 1977 intent.putExtra(TvContract.EXTRA_CHANNEL_ID, ContentUris.parseId( 1978 channelUri)); 1979 intent.putExtra(TvContract.EXTRA_PACKAGE_NAME, callingPackageName); 1980 intent.setPackage(receiverPackageName); 1981 getContext().sendBroadcastAsUser(intent, new UserHandle(resolvedUserId)); 1982 } 1983 } 1984 } finally { 1985 Binder.restoreCallingIdentity(identity); 1986 } 1987 } 1988 1989 @Override 1990 @SuppressWarnings("resource") 1991 protected void dump(FileDescriptor fd, final PrintWriter writer, String[] args) { 1992 final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); 1993 if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; 1994 1995 synchronized (mLock) { 1996 pw.println("User Ids (Current user: " + mCurrentUserId + "):"); 1997 pw.increaseIndent(); 1998 for (int i = 0; i < mUserStates.size(); i++) { 1999 int userId = mUserStates.keyAt(i); 2000 pw.println(Integer.valueOf(userId)); 2001 } 2002 pw.decreaseIndent(); 2003 2004 for (int i = 0; i < mUserStates.size(); i++) { 2005 int userId = mUserStates.keyAt(i); 2006 UserState userState = getOrCreateUserStateLocked(userId); 2007 pw.println("UserState (" + userId + "):"); 2008 pw.increaseIndent(); 2009 2010 pw.println("inputMap: inputId -> TvInputState"); 2011 pw.increaseIndent(); 2012 for (Map.Entry<String, TvInputState> entry: userState.inputMap.entrySet()) { 2013 pw.println(entry.getKey() + ": " + entry.getValue()); 2014 } 2015 pw.decreaseIndent(); 2016 2017 pw.println("packageSet:"); 2018 pw.increaseIndent(); 2019 for (String packageName : userState.packageSet) { 2020 pw.println(packageName); 2021 } 2022 pw.decreaseIndent(); 2023 2024 pw.println("clientStateMap: ITvInputClient -> ClientState"); 2025 pw.increaseIndent(); 2026 for (Map.Entry<IBinder, ClientState> entry : 2027 userState.clientStateMap.entrySet()) { 2028 ClientState client = entry.getValue(); 2029 pw.println(entry.getKey() + ": " + client); 2030 2031 pw.increaseIndent(); 2032 2033 pw.println("sessionTokens:"); 2034 pw.increaseIndent(); 2035 for (IBinder token : client.sessionTokens) { 2036 pw.println("" + token); 2037 } 2038 pw.decreaseIndent(); 2039 2040 pw.println("clientTokens: " + client.clientToken); 2041 pw.println("userId: " + client.userId); 2042 2043 pw.decreaseIndent(); 2044 } 2045 pw.decreaseIndent(); 2046 2047 pw.println("serviceStateMap: ComponentName -> ServiceState"); 2048 pw.increaseIndent(); 2049 for (Map.Entry<ComponentName, ServiceState> entry : 2050 userState.serviceStateMap.entrySet()) { 2051 ServiceState service = entry.getValue(); 2052 pw.println(entry.getKey() + ": " + service); 2053 2054 pw.increaseIndent(); 2055 2056 pw.println("sessionTokens:"); 2057 pw.increaseIndent(); 2058 for (IBinder token : service.sessionTokens) { 2059 pw.println("" + token); 2060 } 2061 pw.decreaseIndent(); 2062 2063 pw.println("service: " + service.service); 2064 pw.println("callback: " + service.callback); 2065 pw.println("bound: " + service.bound); 2066 pw.println("reconnecting: " + service.reconnecting); 2067 2068 pw.decreaseIndent(); 2069 } 2070 pw.decreaseIndent(); 2071 2072 pw.println("sessionStateMap: ITvInputSession -> SessionState"); 2073 pw.increaseIndent(); 2074 for (Map.Entry<IBinder, SessionState> entry : 2075 userState.sessionStateMap.entrySet()) { 2076 SessionState session = entry.getValue(); 2077 pw.println(entry.getKey() + ": " + session); 2078 2079 pw.increaseIndent(); 2080 pw.println("inputId: " + session.inputId); 2081 pw.println("client: " + session.client); 2082 pw.println("seq: " + session.seq); 2083 pw.println("callingUid: " + session.callingUid); 2084 pw.println("userId: " + session.userId); 2085 pw.println("sessionToken: " + session.sessionToken); 2086 pw.println("session: " + session.session); 2087 pw.println("logUri: " + session.logUri); 2088 pw.println("hardwareSessionToken: " + session.hardwareSessionToken); 2089 pw.decreaseIndent(); 2090 } 2091 pw.decreaseIndent(); 2092 2093 pw.println("callbackSet:"); 2094 pw.increaseIndent(); 2095 for (ITvInputManagerCallback callback : userState.callbackSet) { 2096 pw.println(callback.toString()); 2097 } 2098 pw.decreaseIndent(); 2099 2100 pw.println("mainSessionToken: " + userState.mainSessionToken); 2101 pw.decreaseIndent(); 2102 } 2103 } 2104 mTvInputHardwareManager.dump(fd, writer, args); 2105 } 2106 } 2107 2108 private static final class UserState { 2109 // A mapping from the TV input id to its TvInputState. 2110 private Map<String, TvInputState> inputMap = new HashMap<>(); 2111 2112 // A set of all TV input packages. 2113 private final Set<String> packageSet = new HashSet<>(); 2114 2115 // A list of all TV content rating systems defined. 2116 private final List<TvContentRatingSystemInfo> 2117 contentRatingSystemList = new ArrayList<>(); 2118 2119 // A mapping from the token of a client to its state. 2120 private final Map<IBinder, ClientState> clientStateMap = new HashMap<>(); 2121 2122 // A mapping from the name of a TV input service to its state. 2123 private final Map<ComponentName, ServiceState> serviceStateMap = new HashMap<>(); 2124 2125 // A mapping from the token of a TV input session to its state. 2126 private final Map<IBinder, SessionState> sessionStateMap = new HashMap<>(); 2127 2128 // A set of callbacks. 2129 private final Set<ITvInputManagerCallback> callbackSet = new HashSet<>(); 2130 2131 // The token of a "main" TV input session. 2132 private IBinder mainSessionToken = null; 2133 2134 // Persistent data store for all internal settings maintained by the TV input manager 2135 // service. 2136 private final PersistentDataStore persistentDataStore; 2137 2138 private UserState(Context context, int userId) { 2139 persistentDataStore = new PersistentDataStore(context, userId); 2140 } 2141 } 2142 2143 private final class ClientState implements IBinder.DeathRecipient { 2144 private final List<IBinder> sessionTokens = new ArrayList<>(); 2145 2146 private IBinder clientToken; 2147 private final int userId; 2148 2149 ClientState(IBinder clientToken, int userId) { 2150 this.clientToken = clientToken; 2151 this.userId = userId; 2152 } 2153 2154 public boolean isEmpty() { 2155 return sessionTokens.isEmpty(); 2156 } 2157 2158 @Override 2159 public void binderDied() { 2160 synchronized (mLock) { 2161 UserState userState = getOrCreateUserStateLocked(userId); 2162 // DO NOT remove the client state of clientStateMap in this method. It will be 2163 // removed in releaseSessionLocked(). 2164 ClientState clientState = userState.clientStateMap.get(clientToken); 2165 if (clientState != null) { 2166 while (clientState.sessionTokens.size() > 0) { 2167 releaseSessionLocked( 2168 clientState.sessionTokens.get(0), Process.SYSTEM_UID, userId); 2169 } 2170 } 2171 clientToken = null; 2172 } 2173 } 2174 } 2175 2176 private final class ServiceState { 2177 private final List<IBinder> sessionTokens = new ArrayList<>(); 2178 private final ServiceConnection connection; 2179 private final ComponentName component; 2180 private final boolean isHardware; 2181 private final Map<String, TvInputInfo> hardwareInputMap = new HashMap<>(); 2182 2183 private ITvInputService service; 2184 private ServiceCallback callback; 2185 private boolean bound; 2186 private boolean reconnecting; 2187 2188 private ServiceState(ComponentName component, int userId) { 2189 this.component = component; 2190 this.connection = new InputServiceConnection(component, userId); 2191 this.isHardware = hasHardwarePermission(mContext.getPackageManager(), component); 2192 } 2193 } 2194 2195 private static final class TvInputState { 2196 // A TvInputInfo object which represents the TV input. 2197 private TvInputInfo info; 2198 2199 // The state of TV input. Connected by default. 2200 private int state = INPUT_STATE_CONNECTED; 2201 2202 @Override 2203 public String toString() { 2204 return "info: " + info + "; state: " + state; 2205 } 2206 } 2207 2208 private final class SessionState implements IBinder.DeathRecipient { 2209 private final String inputId; 2210 private final ComponentName componentName; 2211 private final boolean isRecordingSession; 2212 private final ITvInputClient client; 2213 private final int seq; 2214 private final int callingUid; 2215 private final int userId; 2216 private final IBinder sessionToken; 2217 private ITvInputSession session; 2218 private Uri logUri; 2219 // Not null if this session represents an external device connected to a hardware TV input. 2220 private IBinder hardwareSessionToken; 2221 2222 private SessionState(IBinder sessionToken, String inputId, ComponentName componentName, 2223 boolean isRecordingSession, ITvInputClient client, int seq, int callingUid, 2224 int userId) { 2225 this.sessionToken = sessionToken; 2226 this.inputId = inputId; 2227 this.componentName = componentName; 2228 this.isRecordingSession = isRecordingSession; 2229 this.client = client; 2230 this.seq = seq; 2231 this.callingUid = callingUid; 2232 this.userId = userId; 2233 } 2234 2235 @Override 2236 public void binderDied() { 2237 synchronized (mLock) { 2238 session = null; 2239 clearSessionAndNotifyClientLocked(this); 2240 } 2241 } 2242 } 2243 2244 private final class InputServiceConnection implements ServiceConnection { 2245 private final ComponentName mComponent; 2246 private final int mUserId; 2247 2248 private InputServiceConnection(ComponentName component, int userId) { 2249 mComponent = component; 2250 mUserId = userId; 2251 } 2252 2253 @Override 2254 public void onServiceConnected(ComponentName component, IBinder service) { 2255 if (DEBUG) { 2256 Slog.d(TAG, "onServiceConnected(component=" + component + ")"); 2257 } 2258 synchronized (mLock) { 2259 UserState userState = mUserStates.get(mUserId); 2260 if (userState == null) { 2261 // The user was removed while connecting. 2262 mContext.unbindService(this); 2263 return; 2264 } 2265 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 2266 serviceState.service = ITvInputService.Stub.asInterface(service); 2267 2268 // Register a callback, if we need to. 2269 if (serviceState.isHardware && serviceState.callback == null) { 2270 serviceState.callback = new ServiceCallback(mComponent, mUserId); 2271 try { 2272 serviceState.service.registerCallback(serviceState.callback); 2273 } catch (RemoteException e) { 2274 Slog.e(TAG, "error in registerCallback", e); 2275 } 2276 } 2277 2278 // And create sessions, if any. 2279 for (IBinder sessionToken : serviceState.sessionTokens) { 2280 createSessionInternalLocked(serviceState.service, sessionToken, mUserId); 2281 } 2282 2283 for (TvInputState inputState : userState.inputMap.values()) { 2284 if (inputState.info.getComponent().equals(component) 2285 && inputState.state != INPUT_STATE_CONNECTED) { 2286 notifyInputStateChangedLocked(userState, inputState.info.getId(), 2287 inputState.state, null); 2288 } 2289 } 2290 2291 if (serviceState.isHardware) { 2292 serviceState.hardwareInputMap.clear(); 2293 for (TvInputHardwareInfo hardware : mTvInputHardwareManager.getHardwareList()) { 2294 try { 2295 serviceState.service.notifyHardwareAdded(hardware); 2296 } catch (RemoteException e) { 2297 Slog.e(TAG, "error in notifyHardwareAdded", e); 2298 } 2299 } 2300 for (HdmiDeviceInfo device : mTvInputHardwareManager.getHdmiDeviceList()) { 2301 try { 2302 serviceState.service.notifyHdmiDeviceAdded(device); 2303 } catch (RemoteException e) { 2304 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2305 } 2306 } 2307 } 2308 } 2309 } 2310 2311 @Override 2312 public void onServiceDisconnected(ComponentName component) { 2313 if (DEBUG) { 2314 Slog.d(TAG, "onServiceDisconnected(component=" + component + ")"); 2315 } 2316 if (!mComponent.equals(component)) { 2317 throw new IllegalArgumentException("Mismatched ComponentName: " 2318 + mComponent + " (expected), " + component + " (actual)."); 2319 } 2320 synchronized (mLock) { 2321 UserState userState = getOrCreateUserStateLocked(mUserId); 2322 ServiceState serviceState = userState.serviceStateMap.get(mComponent); 2323 if (serviceState != null) { 2324 serviceState.reconnecting = true; 2325 serviceState.bound = false; 2326 serviceState.service = null; 2327 serviceState.callback = null; 2328 2329 abortPendingCreateSessionRequestsLocked(serviceState, null, mUserId); 2330 } 2331 } 2332 } 2333 } 2334 2335 private final class ServiceCallback extends ITvInputServiceCallback.Stub { 2336 private final ComponentName mComponent; 2337 private final int mUserId; 2338 2339 ServiceCallback(ComponentName component, int userId) { 2340 mComponent = component; 2341 mUserId = userId; 2342 } 2343 2344 private void ensureHardwarePermission() { 2345 if (mContext.checkCallingPermission(android.Manifest.permission.TV_INPUT_HARDWARE) 2346 != PackageManager.PERMISSION_GRANTED) { 2347 throw new SecurityException("The caller does not have hardware permission"); 2348 } 2349 } 2350 2351 private void ensureValidInput(TvInputInfo inputInfo) { 2352 if (inputInfo.getId() == null || !mComponent.equals(inputInfo.getComponent())) { 2353 throw new IllegalArgumentException("Invalid TvInputInfo"); 2354 } 2355 } 2356 2357 private void addHardwareInputLocked(TvInputInfo inputInfo) { 2358 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2359 serviceState.hardwareInputMap.put(inputInfo.getId(), inputInfo); 2360 buildTvInputListLocked(mUserId, null); 2361 } 2362 2363 public void addHardwareInput(int deviceId, TvInputInfo inputInfo) { 2364 ensureHardwarePermission(); 2365 ensureValidInput(inputInfo); 2366 synchronized (mLock) { 2367 mTvInputHardwareManager.addHardwareInput(deviceId, inputInfo); 2368 addHardwareInputLocked(inputInfo); 2369 } 2370 } 2371 2372 public void addHdmiInput(int id, TvInputInfo inputInfo) { 2373 ensureHardwarePermission(); 2374 ensureValidInput(inputInfo); 2375 synchronized (mLock) { 2376 mTvInputHardwareManager.addHdmiInput(id, inputInfo); 2377 addHardwareInputLocked(inputInfo); 2378 } 2379 } 2380 2381 public void removeHardwareInput(String inputId) { 2382 ensureHardwarePermission(); 2383 synchronized (mLock) { 2384 ServiceState serviceState = getServiceStateLocked(mComponent, mUserId); 2385 boolean removed = serviceState.hardwareInputMap.remove(inputId) != null; 2386 if (removed) { 2387 buildTvInputListLocked(mUserId, null); 2388 mTvInputHardwareManager.removeHardwareInput(inputId); 2389 } else { 2390 Slog.e(TAG, "failed to remove input " + inputId); 2391 } 2392 } 2393 } 2394 } 2395 2396 private final class SessionCallback extends ITvInputSessionCallback.Stub { 2397 private final SessionState mSessionState; 2398 private final InputChannel[] mChannels; 2399 2400 SessionCallback(SessionState sessionState, InputChannel[] channels) { 2401 mSessionState = sessionState; 2402 mChannels = channels; 2403 } 2404 2405 @Override 2406 public void onSessionCreated(ITvInputSession session, IBinder hardwareSessionToken) { 2407 if (DEBUG) { 2408 Slog.d(TAG, "onSessionCreated(inputId=" + mSessionState.inputId + ")"); 2409 } 2410 synchronized (mLock) { 2411 mSessionState.session = session; 2412 mSessionState.hardwareSessionToken = hardwareSessionToken; 2413 if (session != null && addSessionTokenToClientStateLocked(session)) { 2414 sendSessionTokenToClientLocked(mSessionState.client, 2415 mSessionState.inputId, mSessionState.sessionToken, mChannels[0], 2416 mSessionState.seq); 2417 } else { 2418 removeSessionStateLocked(mSessionState.sessionToken, mSessionState.userId); 2419 sendSessionTokenToClientLocked(mSessionState.client, 2420 mSessionState.inputId, null, null, mSessionState.seq); 2421 } 2422 mChannels[0].dispose(); 2423 } 2424 } 2425 2426 private boolean addSessionTokenToClientStateLocked(ITvInputSession session) { 2427 try { 2428 session.asBinder().linkToDeath(mSessionState, 0); 2429 } catch (RemoteException e) { 2430 Slog.e(TAG, "session process has already died", e); 2431 return false; 2432 } 2433 2434 IBinder clientToken = mSessionState.client.asBinder(); 2435 UserState userState = getOrCreateUserStateLocked(mSessionState.userId); 2436 ClientState clientState = userState.clientStateMap.get(clientToken); 2437 if (clientState == null) { 2438 clientState = new ClientState(clientToken, mSessionState.userId); 2439 try { 2440 clientToken.linkToDeath(clientState, 0); 2441 } catch (RemoteException e) { 2442 Slog.e(TAG, "client process has already died", e); 2443 return false; 2444 } 2445 userState.clientStateMap.put(clientToken, clientState); 2446 } 2447 clientState.sessionTokens.add(mSessionState.sessionToken); 2448 return true; 2449 } 2450 2451 @Override 2452 public void onChannelRetuned(Uri channelUri) { 2453 synchronized (mLock) { 2454 if (DEBUG) { 2455 Slog.d(TAG, "onChannelRetuned(" + channelUri + ")"); 2456 } 2457 if (mSessionState.session == null || mSessionState.client == null) { 2458 return; 2459 } 2460 try { 2461 // TODO: Consider adding this channel change in the watch log. When we do 2462 // that, how we can protect the watch log from malicious tv inputs should 2463 // be addressed. e.g. add a field which represents where the channel change 2464 // originated from. 2465 mSessionState.client.onChannelRetuned(channelUri, mSessionState.seq); 2466 } catch (RemoteException e) { 2467 Slog.e(TAG, "error in onChannelRetuned", e); 2468 } 2469 } 2470 } 2471 2472 @Override 2473 public void onTracksChanged(List<TvTrackInfo> tracks) { 2474 synchronized (mLock) { 2475 if (DEBUG) { 2476 Slog.d(TAG, "onTracksChanged(" + tracks + ")"); 2477 } 2478 if (mSessionState.session == null || mSessionState.client == null) { 2479 return; 2480 } 2481 try { 2482 mSessionState.client.onTracksChanged(tracks, mSessionState.seq); 2483 } catch (RemoteException e) { 2484 Slog.e(TAG, "error in onTracksChanged", e); 2485 } 2486 } 2487 } 2488 2489 @Override 2490 public void onTrackSelected(int type, String trackId) { 2491 synchronized (mLock) { 2492 if (DEBUG) { 2493 Slog.d(TAG, "onTrackSelected(type=" + type + ", trackId=" + trackId + ")"); 2494 } 2495 if (mSessionState.session == null || mSessionState.client == null) { 2496 return; 2497 } 2498 try { 2499 mSessionState.client.onTrackSelected(type, trackId, mSessionState.seq); 2500 } catch (RemoteException e) { 2501 Slog.e(TAG, "error in onTrackSelected", e); 2502 } 2503 } 2504 } 2505 2506 @Override 2507 public void onVideoAvailable() { 2508 synchronized (mLock) { 2509 if (DEBUG) { 2510 Slog.d(TAG, "onVideoAvailable()"); 2511 } 2512 if (mSessionState.session == null || mSessionState.client == null) { 2513 return; 2514 } 2515 try { 2516 mSessionState.client.onVideoAvailable(mSessionState.seq); 2517 } catch (RemoteException e) { 2518 Slog.e(TAG, "error in onVideoAvailable", e); 2519 } 2520 } 2521 } 2522 2523 @Override 2524 public void onVideoUnavailable(int reason) { 2525 synchronized (mLock) { 2526 if (DEBUG) { 2527 Slog.d(TAG, "onVideoUnavailable(" + reason + ")"); 2528 } 2529 if (mSessionState.session == null || mSessionState.client == null) { 2530 return; 2531 } 2532 try { 2533 mSessionState.client.onVideoUnavailable(reason, mSessionState.seq); 2534 } catch (RemoteException e) { 2535 Slog.e(TAG, "error in onVideoUnavailable", e); 2536 } 2537 } 2538 } 2539 2540 @Override 2541 public void onContentAllowed() { 2542 synchronized (mLock) { 2543 if (DEBUG) { 2544 Slog.d(TAG, "onContentAllowed()"); 2545 } 2546 if (mSessionState.session == null || mSessionState.client == null) { 2547 return; 2548 } 2549 try { 2550 mSessionState.client.onContentAllowed(mSessionState.seq); 2551 } catch (RemoteException e) { 2552 Slog.e(TAG, "error in onContentAllowed", e); 2553 } 2554 } 2555 } 2556 2557 @Override 2558 public void onContentBlocked(String rating) { 2559 synchronized (mLock) { 2560 if (DEBUG) { 2561 Slog.d(TAG, "onContentBlocked()"); 2562 } 2563 if (mSessionState.session == null || mSessionState.client == null) { 2564 return; 2565 } 2566 try { 2567 mSessionState.client.onContentBlocked(rating, mSessionState.seq); 2568 } catch (RemoteException e) { 2569 Slog.e(TAG, "error in onContentBlocked", e); 2570 } 2571 } 2572 } 2573 2574 @Override 2575 public void onLayoutSurface(int left, int top, int right, int bottom) { 2576 synchronized (mLock) { 2577 if (DEBUG) { 2578 Slog.d(TAG, "onLayoutSurface (left=" + left + ", top=" + top 2579 + ", right=" + right + ", bottom=" + bottom + ",)"); 2580 } 2581 if (mSessionState.session == null || mSessionState.client == null) { 2582 return; 2583 } 2584 try { 2585 mSessionState.client.onLayoutSurface(left, top, right, bottom, 2586 mSessionState.seq); 2587 } catch (RemoteException e) { 2588 Slog.e(TAG, "error in onLayoutSurface", e); 2589 } 2590 } 2591 } 2592 2593 @Override 2594 public void onSessionEvent(String eventType, Bundle eventArgs) { 2595 synchronized (mLock) { 2596 if (DEBUG) { 2597 Slog.d(TAG, "onEvent(eventType=" + eventType + ", eventArgs=" + eventArgs 2598 + ")"); 2599 } 2600 if (mSessionState.session == null || mSessionState.client == null) { 2601 return; 2602 } 2603 try { 2604 mSessionState.client.onSessionEvent(eventType, eventArgs, mSessionState.seq); 2605 } catch (RemoteException e) { 2606 Slog.e(TAG, "error in onSessionEvent", e); 2607 } 2608 } 2609 } 2610 2611 @Override 2612 public void onTimeShiftStatusChanged(int status) { 2613 synchronized (mLock) { 2614 if (DEBUG) { 2615 Slog.d(TAG, "onTimeShiftStatusChanged(status=" + status + ")"); 2616 } 2617 if (mSessionState.session == null || mSessionState.client == null) { 2618 return; 2619 } 2620 try { 2621 mSessionState.client.onTimeShiftStatusChanged(status, mSessionState.seq); 2622 } catch (RemoteException e) { 2623 Slog.e(TAG, "error in onTimeShiftStatusChanged", e); 2624 } 2625 } 2626 } 2627 2628 @Override 2629 public void onTimeShiftStartPositionChanged(long timeMs) { 2630 synchronized (mLock) { 2631 if (DEBUG) { 2632 Slog.d(TAG, "onTimeShiftStartPositionChanged(timeMs=" + timeMs + ")"); 2633 } 2634 if (mSessionState.session == null || mSessionState.client == null) { 2635 return; 2636 } 2637 try { 2638 mSessionState.client.onTimeShiftStartPositionChanged(timeMs, mSessionState.seq); 2639 } catch (RemoteException e) { 2640 Slog.e(TAG, "error in onTimeShiftStartPositionChanged", e); 2641 } 2642 } 2643 } 2644 2645 @Override 2646 public void onTimeShiftCurrentPositionChanged(long timeMs) { 2647 synchronized (mLock) { 2648 if (DEBUG) { 2649 Slog.d(TAG, "onTimeShiftCurrentPositionChanged(timeMs=" + timeMs + ")"); 2650 } 2651 if (mSessionState.session == null || mSessionState.client == null) { 2652 return; 2653 } 2654 try { 2655 mSessionState.client.onTimeShiftCurrentPositionChanged(timeMs, 2656 mSessionState.seq); 2657 } catch (RemoteException e) { 2658 Slog.e(TAG, "error in onTimeShiftCurrentPositionChanged", e); 2659 } 2660 } 2661 } 2662 2663 // For the recording session only 2664 @Override 2665 public void onTuned(Uri channelUri) { 2666 synchronized (mLock) { 2667 if (DEBUG) { 2668 Slog.d(TAG, "onTuned()"); 2669 } 2670 if (mSessionState.session == null || mSessionState.client == null) { 2671 return; 2672 } 2673 try { 2674 mSessionState.client.onTuned(mSessionState.seq, channelUri); 2675 } catch (RemoteException e) { 2676 Slog.e(TAG, "error in onTuned", e); 2677 } 2678 } 2679 } 2680 2681 // For the recording session only 2682 @Override 2683 public void onRecordingStopped(Uri recordedProgramUri) { 2684 synchronized (mLock) { 2685 if (DEBUG) { 2686 Slog.d(TAG, "onRecordingStopped(recordedProgramUri=" + recordedProgramUri 2687 + ")"); 2688 } 2689 if (mSessionState.session == null || mSessionState.client == null) { 2690 return; 2691 } 2692 try { 2693 mSessionState.client.onRecordingStopped(recordedProgramUri, mSessionState.seq); 2694 } catch (RemoteException e) { 2695 Slog.e(TAG, "error in onRecordingStopped", e); 2696 } 2697 } 2698 } 2699 2700 // For the recording session only 2701 @Override 2702 public void onError(int error) { 2703 synchronized (mLock) { 2704 if (DEBUG) { 2705 Slog.d(TAG, "onError(error=" + error + ")"); 2706 } 2707 if (mSessionState.session == null || mSessionState.client == null) { 2708 return; 2709 } 2710 try { 2711 mSessionState.client.onError(error, mSessionState.seq); 2712 } catch (RemoteException e) { 2713 Slog.e(TAG, "error in onError", e); 2714 } 2715 } 2716 } 2717 } 2718 2719 private static final class WatchLogHandler extends Handler { 2720 // There are only two kinds of watch events that can happen on the system: 2721 // 1. The current TV input session is tuned to a new channel. 2722 // 2. The session is released for some reason. 2723 // The former indicates the end of the previous log entry, if any, followed by the start of 2724 // a new entry. The latter indicates the end of the most recent entry for the given session. 2725 // Here the system supplies the database the smallest set of information only that is 2726 // sufficient to consolidate the log entries while minimizing database operations in the 2727 // system service. 2728 static final int MSG_LOG_WATCH_START = 1; 2729 static final int MSG_LOG_WATCH_END = 2; 2730 static final int MSG_SWITCH_CONTENT_RESOLVER = 3; 2731 2732 private ContentResolver mContentResolver; 2733 2734 WatchLogHandler(ContentResolver contentResolver, Looper looper) { 2735 super(looper); 2736 mContentResolver = contentResolver; 2737 } 2738 2739 @Override 2740 public void handleMessage(Message msg) { 2741 switch (msg.what) { 2742 case MSG_LOG_WATCH_START: { 2743 SomeArgs args = (SomeArgs) msg.obj; 2744 String packageName = (String) args.arg1; 2745 long watchStartTime = (long) args.arg2; 2746 long channelId = (long) args.arg3; 2747 Bundle tuneParams = (Bundle) args.arg4; 2748 IBinder sessionToken = (IBinder) args.arg5; 2749 2750 ContentValues values = new ContentValues(); 2751 values.put(TvContract.WatchedPrograms.COLUMN_PACKAGE_NAME, packageName); 2752 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS, 2753 watchStartTime); 2754 values.put(TvContract.WatchedPrograms.COLUMN_CHANNEL_ID, channelId); 2755 if (tuneParams != null) { 2756 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_TUNE_PARAMS, 2757 encodeTuneParams(tuneParams)); 2758 } 2759 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2760 sessionToken.toString()); 2761 2762 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2763 args.recycle(); 2764 break; 2765 } 2766 case MSG_LOG_WATCH_END: { 2767 SomeArgs args = (SomeArgs) msg.obj; 2768 IBinder sessionToken = (IBinder) args.arg1; 2769 long watchEndTime = (long) args.arg2; 2770 2771 ContentValues values = new ContentValues(); 2772 values.put(TvContract.WatchedPrograms.COLUMN_WATCH_END_TIME_UTC_MILLIS, 2773 watchEndTime); 2774 values.put(TvContract.WatchedPrograms.COLUMN_INTERNAL_SESSION_TOKEN, 2775 sessionToken.toString()); 2776 2777 mContentResolver.insert(TvContract.WatchedPrograms.CONTENT_URI, values); 2778 args.recycle(); 2779 break; 2780 } 2781 case MSG_SWITCH_CONTENT_RESOLVER: { 2782 mContentResolver = (ContentResolver) msg.obj; 2783 break; 2784 } 2785 default: { 2786 Slog.w(TAG, "unhandled message code: " + msg.what); 2787 break; 2788 } 2789 } 2790 } 2791 2792 private String encodeTuneParams(Bundle tuneParams) { 2793 StringBuilder builder = new StringBuilder(); 2794 Set<String> keySet = tuneParams.keySet(); 2795 Iterator<String> it = keySet.iterator(); 2796 while (it.hasNext()) { 2797 String key = it.next(); 2798 Object value = tuneParams.get(key); 2799 if (value == null) { 2800 continue; 2801 } 2802 builder.append(replaceEscapeCharacters(key)); 2803 builder.append("="); 2804 builder.append(replaceEscapeCharacters(value.toString())); 2805 if (it.hasNext()) { 2806 builder.append(", "); 2807 } 2808 } 2809 return builder.toString(); 2810 } 2811 2812 private String replaceEscapeCharacters(String src) { 2813 final char ESCAPE_CHARACTER = '%'; 2814 final String ENCODING_TARGET_CHARACTERS = "%=,"; 2815 StringBuilder builder = new StringBuilder(); 2816 for (char ch : src.toCharArray()) { 2817 if (ENCODING_TARGET_CHARACTERS.indexOf(ch) >= 0) { 2818 builder.append(ESCAPE_CHARACTER); 2819 } 2820 builder.append(ch); 2821 } 2822 return builder.toString(); 2823 } 2824 } 2825 2826 private final class HardwareListener implements TvInputHardwareManager.Listener { 2827 @Override 2828 public void onStateChanged(String inputId, int state) { 2829 synchronized (mLock) { 2830 setStateLocked(inputId, state, mCurrentUserId); 2831 } 2832 } 2833 2834 @Override 2835 public void onHardwareDeviceAdded(TvInputHardwareInfo info) { 2836 synchronized (mLock) { 2837 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2838 // Broadcast the event to all hardware inputs. 2839 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2840 if (!serviceState.isHardware || serviceState.service == null) continue; 2841 try { 2842 serviceState.service.notifyHardwareAdded(info); 2843 } catch (RemoteException e) { 2844 Slog.e(TAG, "error in notifyHardwareAdded", e); 2845 } 2846 } 2847 } 2848 } 2849 2850 @Override 2851 public void onHardwareDeviceRemoved(TvInputHardwareInfo info) { 2852 synchronized (mLock) { 2853 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2854 // Broadcast the event to all hardware inputs. 2855 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2856 if (!serviceState.isHardware || serviceState.service == null) continue; 2857 try { 2858 serviceState.service.notifyHardwareRemoved(info); 2859 } catch (RemoteException e) { 2860 Slog.e(TAG, "error in notifyHardwareRemoved", e); 2861 } 2862 } 2863 } 2864 } 2865 2866 @Override 2867 public void onHdmiDeviceAdded(HdmiDeviceInfo deviceInfo) { 2868 synchronized (mLock) { 2869 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2870 // Broadcast the event to all hardware inputs. 2871 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2872 if (!serviceState.isHardware || serviceState.service == null) continue; 2873 try { 2874 serviceState.service.notifyHdmiDeviceAdded(deviceInfo); 2875 } catch (RemoteException e) { 2876 Slog.e(TAG, "error in notifyHdmiDeviceAdded", e); 2877 } 2878 } 2879 } 2880 } 2881 2882 @Override 2883 public void onHdmiDeviceRemoved(HdmiDeviceInfo deviceInfo) { 2884 synchronized (mLock) { 2885 UserState userState = getOrCreateUserStateLocked(mCurrentUserId); 2886 // Broadcast the event to all hardware inputs. 2887 for (ServiceState serviceState : userState.serviceStateMap.values()) { 2888 if (!serviceState.isHardware || serviceState.service == null) continue; 2889 try { 2890 serviceState.service.notifyHdmiDeviceRemoved(deviceInfo); 2891 } catch (RemoteException e) { 2892 Slog.e(TAG, "error in notifyHdmiDeviceRemoved", e); 2893 } 2894 } 2895 } 2896 } 2897 2898 @Override 2899 public void onHdmiDeviceUpdated(String inputId, HdmiDeviceInfo deviceInfo) { 2900 synchronized (mLock) { 2901 Integer state; 2902 switch (deviceInfo.getDevicePowerStatus()) { 2903 case HdmiControlManager.POWER_STATUS_ON: 2904 state = INPUT_STATE_CONNECTED; 2905 break; 2906 case HdmiControlManager.POWER_STATUS_STANDBY: 2907 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_ON: 2908 case HdmiControlManager.POWER_STATUS_TRANSIENT_TO_STANDBY: 2909 state = INPUT_STATE_CONNECTED_STANDBY; 2910 break; 2911 case HdmiControlManager.POWER_STATUS_UNKNOWN: 2912 default: 2913 state = null; 2914 break; 2915 } 2916 if (state != null) { 2917 setStateLocked(inputId, state, mCurrentUserId); 2918 } 2919 } 2920 } 2921 } 2922 2923 private static class SessionNotFoundException extends IllegalArgumentException { 2924 public SessionNotFoundException(String name) { 2925 super(name); 2926 } 2927 } 2928 } 2929