Persist safe MediaSession intents across reboots (c8f92d17) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/media/MediaSessionService.java

+43 −9

Original line number	Diff line number	Diff line
		@@ -117,7 +117,6 @@ public class MediaSessionService extends SystemService implements Monitor {
		public void onStart() {
		publishBinderService(Context.MEDIA_SESSION_SERVICE, mSessionManagerImpl);
		Watchdog.getInstance().addMonitor(this);
		updateUser();
		mKeyguardManager =
		(KeyguardManager) getContext().getSystemService(Context.KEYGUARD_SERVICE);
		mAudioService = getAudioService();
		@@ -125,6 +124,8 @@ public class MediaSessionService extends SystemService implements Monitor {
		mContentResolver = getContext().getContentResolver();
		mSettingsObserver = new SettingsObserver();
		mSettingsObserver.observe();

		updateUser();
		}

		private IAudioService getAudioService() {
		@@ -501,6 +502,12 @@ public class MediaSessionService extends SystemService implements Monitor {
		UserRecord user = mUserRecords.get(record.getUserId());
		if (receiver != null && user != null) {
		user.mLastMediaButtonReceiver = receiver;
		ComponentName component = receiver.getIntent().getComponent();
		if (component != null && record.getPackageName().equals(component.getPackageName())) {
		Settings.Secure.putStringForUser(mContentResolver,
		Settings.System.MEDIA_BUTTON_RECEIVER, component.flattenToString(),
		record.getUserId());
		}
		}
		}

		@@ -511,14 +518,17 @@ public class MediaSessionService extends SystemService implements Monitor {
		final class UserRecord {
		private final int mUserId;
		private final ArrayList<MediaSessionRecord> mSessions = new ArrayList<MediaSessionRecord>();
		private final Context mContext;
		private PendingIntent mLastMediaButtonReceiver;
		private ComponentName mRestoredMediaButtonReceiver;

		public UserRecord(Context context, int userId) {
		mContext = context;
		mUserId = userId;
		restoreMediaButtonReceiver();
		}

		public void startLocked() {
		// nothing for now
		}

		public void stopLocked() {
		@@ -548,6 +558,7 @@ public class MediaSessionService extends SystemService implements Monitor {
		pw.println(prefix + "Record for user " + mUserId);
		String indent = prefix + " ";
		pw.println(indent + "MediaButtonReceiver:" + mLastMediaButtonReceiver);
		pw.println(indent + "Restored ButtonReceiver:" + mRestoredMediaButtonReceiver);
		int size = mSessions.size();
		pw.println(indent + size + " Sessions:");
		for (int i = 0; i < size; i++) {
		@@ -556,6 +567,19 @@ public class MediaSessionService extends SystemService implements Monitor {
		pw.println(indent + mSessions.get(i).toString());
		}
		}

		private void restoreMediaButtonReceiver() {
		String receiverName = Settings.Secure.getStringForUser(mContentResolver,
		Settings.System.MEDIA_BUTTON_RECEIVER, UserHandle.USER_CURRENT);
		if (!TextUtils.isEmpty(receiverName)) {
		ComponentName eventReceiver = ComponentName.unflattenFromString(receiverName);
		if (eventReceiver == null) {
		// an invalid name was persisted
		return;
		}
		mRestoredMediaButtonReceiver = eventReceiver;
		}
		}
		}

		final class SessionsListenerRecord implements IBinder.DeathRecipient {
		@@ -723,8 +747,9 @@ public class MediaSessionService extends SystemService implements Monitor {
		synchronized (mLock) {
		// If we don't have a media button receiver to fall back on
		// include non-playing sessions for dispatching
		boolean useNotPlayingSessions = mUserRecords.get(
		ActivityManager.getCurrentUser()).mLastMediaButtonReceiver == null;
		UserRecord ur = mUserRecords.get(ActivityManager.getCurrentUser());
		boolean useNotPlayingSessions = ur.mLastMediaButtonReceiver == null
		&& ur.mRestoredMediaButtonReceiver == null;
		MediaSessionRecord session = mPriorityStack
		.getDefaultMediaButtonSession(mCurrentUserId, useNotPlayingSessions);
		if (isVoiceKey(keyEvent.getKeyCode())) {
		@@ -929,9 +954,12 @@ public class MediaSessionService extends SystemService implements Monitor {
		// Launch the last PendingIntent we had with priority
		int userId = ActivityManager.getCurrentUser();
		UserRecord user = mUserRecords.get(userId);
		if (user.mLastMediaButtonReceiver != null) {
		if (user.mLastMediaButtonReceiver != null
		\|\| user.mRestoredMediaButtonReceiver != null) {
		if (DEBUG) {
		Log.d(TAG, "Sending media key to last known PendingIntent");
		Log.d(TAG, "Sending media key to last known PendingIntent "
		+ user.mLastMediaButtonReceiver + " or restored Intent "
		+ user.mRestoredMediaButtonReceiver);
		}
		if (needWakeLock) {
		mKeyEventReceiver.aquireWakeLockLocked();
		@@ -939,9 +967,15 @@ public class MediaSessionService extends SystemService implements Monitor {
		Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
		mediaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent);
		try {
		if (user.mLastMediaButtonReceiver != null) {
		user.mLastMediaButtonReceiver.send(getContext(),
		needWakeLock ? mKeyEventReceiver.mLastTimeoutId : -1,
		mediaButtonIntent, mKeyEventReceiver, null);
		} else {
		mediaButtonIntent.setComponent(user.mRestoredMediaButtonReceiver);
		getContext().sendBroadcastAsUser(mediaButtonIntent,
		new UserHandle(userId));
		}
		} catch (CanceledException e) {
		Log.i(TAG, "Error sending key event to media button receiver "
		+ user.mLastMediaButtonReceiver, e);