| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.pm; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UserIdInt; |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerInternal; |
| import android.app.AppGlobals; |
| import android.app.IApplicationThread; |
| import android.app.PendingIntent; |
| import android.app.admin.DevicePolicyManager; |
| import android.app.usage.UsageStatsManagerInternal; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentSender; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.ILauncherApps; |
| import android.content.pm.IOnAppsChangedListener; |
| import android.content.pm.IPackageInstallerCallback; |
| import android.content.pm.LauncherApps; |
| import android.content.pm.LauncherApps.ShortcutQuery; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageInstaller.SessionInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManagerInternal; |
| import android.content.pm.ParceledListSlice; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.ShortcutInfo; |
| import android.content.pm.ShortcutServiceInternal; |
| import android.content.pm.ShortcutServiceInternal.ShortcutChangeListener; |
| import android.content.pm.Signature; |
| import android.content.pm.SigningInfo; |
| import android.content.pm.UserInfo; |
| import android.graphics.Rect; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IInterface; |
| import android.os.ParcelFileDescriptor; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.UserManagerInternal; |
| import android.provider.Settings; |
| import android.util.ByteStringUtils; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.os.BackgroundThread; |
| import com.android.internal.util.DumpUtils; |
| import com.android.internal.util.Preconditions; |
| import com.android.internal.util.StatLogger; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemService; |
| import com.android.server.wm.ActivityTaskManagerInternal; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Service that manages requests and callbacks for launchers that support |
| * managed profiles. |
| */ |
| public class LauncherAppsService extends SystemService { |
| |
| private final LauncherAppsImpl mLauncherAppsImpl; |
| |
| public LauncherAppsService(Context context) { |
| super(context); |
| mLauncherAppsImpl = new LauncherAppsImpl(context); |
| } |
| |
| @Override |
| public void onStart() { |
| publishBinderService(Context.LAUNCHER_APPS_SERVICE, mLauncherAppsImpl); |
| } |
| |
| static class BroadcastCookie { |
| public final UserHandle user; |
| public final String packageName; |
| public final int callingUid; |
| public final int callingPid; |
| |
| BroadcastCookie(UserHandle userHandle, String packageName, int callingPid, int callingUid) { |
| this.user = userHandle; |
| this.packageName = packageName; |
| this.callingUid = callingUid; |
| this.callingPid = callingPid; |
| } |
| } |
| |
| @VisibleForTesting |
| static class LauncherAppsImpl extends ILauncherApps.Stub { |
| private static final boolean DEBUG = false; |
| private static final String TAG = "LauncherAppsService"; |
| |
| // Stats |
| @VisibleForTesting |
| interface Stats { |
| int INIT_VOUCHED_SIGNATURES = 0; |
| int COUNT = INIT_VOUCHED_SIGNATURES + 1; |
| } |
| private final StatLogger mStatLogger = new StatLogger(new String[] { |
| "initVouchedSignatures" |
| }); |
| |
| private final Context mContext; |
| private final UserManager mUm; |
| private final UserManagerInternal mUserManagerInternal; |
| private final UsageStatsManagerInternal mUsageStatsManagerInternal; |
| private final ActivityManagerInternal mActivityManagerInternal; |
| private final ActivityTaskManagerInternal mActivityTaskManagerInternal; |
| private final ShortcutServiceInternal mShortcutServiceInternal; |
| private final PackageCallbackList<IOnAppsChangedListener> mListeners |
| = new PackageCallbackList<IOnAppsChangedListener>(); |
| private final DevicePolicyManager mDpm; |
| private final ConcurrentHashMap<UserHandle, Set<String>> mVouchedSignaturesByUser; |
| private final Set<String> mVouchProviders; |
| |
| private final MyPackageMonitor mPackageMonitor = new MyPackageMonitor(); |
| private final VouchesChangedMonitor mVouchesChangedMonitor = new VouchesChangedMonitor(); |
| |
| private final Handler mCallbackHandler; |
| |
| private final Object mVouchedSignaturesLocked = new Object(); |
| |
| private PackageInstallerService mPackageInstallerService; |
| |
| public LauncherAppsImpl(Context context) { |
| mContext = context; |
| mUm = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| mUserManagerInternal = Preconditions.checkNotNull( |
| LocalServices.getService(UserManagerInternal.class)); |
| mUsageStatsManagerInternal = Preconditions.checkNotNull( |
| LocalServices.getService(UsageStatsManagerInternal.class)); |
| mActivityManagerInternal = Preconditions.checkNotNull( |
| LocalServices.getService(ActivityManagerInternal.class)); |
| mActivityTaskManagerInternal = Preconditions.checkNotNull( |
| LocalServices.getService(ActivityTaskManagerInternal.class)); |
| mShortcutServiceInternal = Preconditions.checkNotNull( |
| LocalServices.getService(ShortcutServiceInternal.class)); |
| mShortcutServiceInternal.addListener(mPackageMonitor); |
| mCallbackHandler = BackgroundThread.getHandler(); |
| mDpm = (DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE); |
| mVouchedSignaturesByUser = new ConcurrentHashMap<>(); |
| mVouchProviders = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>()); |
| mVouchesChangedMonitor.register(mContext, UserHandle.ALL, true, mCallbackHandler); |
| } |
| |
| @VisibleForTesting |
| int injectBinderCallingUid() { |
| return getCallingUid(); |
| } |
| |
| @VisibleForTesting |
| int injectBinderCallingPid() { |
| return getCallingPid(); |
| } |
| |
| final int injectCallingUserId() { |
| return UserHandle.getUserId(injectBinderCallingUid()); |
| } |
| |
| @VisibleForTesting |
| long injectClearCallingIdentity() { |
| return Binder.clearCallingIdentity(); |
| } |
| |
| // Injection point. |
| @VisibleForTesting |
| void injectRestoreCallingIdentity(long token) { |
| Binder.restoreCallingIdentity(token); |
| } |
| |
| private int getCallingUserId() { |
| return UserHandle.getUserId(injectBinderCallingUid()); |
| } |
| |
| /* |
| * @see android.content.pm.ILauncherApps#addOnAppsChangedListener |
| */ |
| @Override |
| public void addOnAppsChangedListener(String callingPackage, IOnAppsChangedListener listener) |
| throws RemoteException { |
| verifyCallingPackage(callingPackage); |
| synchronized (mListeners) { |
| if (DEBUG) { |
| Log.d(TAG, "Adding listener from " + Binder.getCallingUserHandle()); |
| } |
| if (mListeners.getRegisteredCallbackCount() == 0) { |
| if (DEBUG) { |
| Log.d(TAG, "Starting package monitoring"); |
| } |
| startWatchingPackageBroadcasts(); |
| } |
| mListeners.unregister(listener); |
| mListeners.register(listener, new BroadcastCookie(UserHandle.of(getCallingUserId()), |
| callingPackage, injectBinderCallingPid(), injectBinderCallingUid())); |
| } |
| } |
| |
| /* |
| * @see android.content.pm.ILauncherApps#removeOnAppsChangedListener |
| */ |
| @Override |
| public void removeOnAppsChangedListener(IOnAppsChangedListener listener) |
| throws RemoteException { |
| synchronized (mListeners) { |
| if (DEBUG) { |
| Log.d(TAG, "Removing listener from " + Binder.getCallingUserHandle()); |
| } |
| mListeners.unregister(listener); |
| if (mListeners.getRegisteredCallbackCount() == 0) { |
| stopWatchingPackageBroadcasts(); |
| } |
| } |
| } |
| |
| /** |
| * @see android.content.pm.ILauncherApps#registerPackageInstallerCallback |
| */ |
| @Override |
| public void registerPackageInstallerCallback(String callingPackage, |
| IPackageInstallerCallback callback) { |
| verifyCallingPackage(callingPackage); |
| UserHandle callingIdUserHandle = new UserHandle(getCallingUserId()); |
| getPackageInstallerService().registerCallback(callback, eventUserId -> |
| isEnabledProfileOf(callingIdUserHandle, |
| new UserHandle(eventUserId), "shouldReceiveEvent")); |
| } |
| |
| @Override |
| public ParceledListSlice<SessionInfo> getAllSessions(String callingPackage) { |
| verifyCallingPackage(callingPackage); |
| List<SessionInfo> sessionInfos = new ArrayList<>(); |
| int[] userIds = mUm.getEnabledProfileIds(getCallingUserId()); |
| long token = Binder.clearCallingIdentity(); |
| try { |
| for (int userId : userIds) { |
| sessionInfos.addAll(getPackageInstallerService().getAllSessions(userId) |
| .getList()); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| return new ParceledListSlice<>(sessionInfos); |
| } |
| |
| private PackageInstallerService getPackageInstallerService() { |
| if (mPackageInstallerService == null) { |
| mPackageInstallerService = ((PackageInstallerService) ((PackageManagerService) |
| ServiceManager.getService("package")).getPackageInstaller()); |
| } |
| return mPackageInstallerService; |
| } |
| |
| /** |
| * Register a receiver to watch for package broadcasts |
| */ |
| private void startWatchingPackageBroadcasts() { |
| mPackageMonitor.register(mContext, UserHandle.ALL, true, mCallbackHandler); |
| } |
| |
| /** |
| * Unregister package broadcast receiver |
| */ |
| private void stopWatchingPackageBroadcasts() { |
| if (DEBUG) { |
| Log.d(TAG, "Stopped watching for packages"); |
| } |
| mPackageMonitor.unregister(); |
| } |
| |
| void checkCallbackCount() { |
| synchronized (mListeners) { |
| if (DEBUG) { |
| Log.d(TAG, "Callback count = " + mListeners.getRegisteredCallbackCount()); |
| } |
| if (mListeners.getRegisteredCallbackCount() == 0) { |
| stopWatchingPackageBroadcasts(); |
| } |
| } |
| } |
| |
| /** |
| * Checks if the calling user is in the same group as {@code targetUser}, and allowed |
| * to access it. |
| * |
| * @return TRUE if the calling user can access {@code targetUserId}. FALSE if not *but |
| * they're still in the same profile group*. |
| * |
| * @throws SecurityException if the calling user and {@code targetUser} are not in the same |
| * group. |
| */ |
| private boolean canAccessProfile(int targetUserId, String message) { |
| final int callingUserId = injectCallingUserId(); |
| |
| if (targetUserId == callingUserId) return true; |
| |
| long ident = injectClearCallingIdentity(); |
| try { |
| final UserInfo callingUserInfo = mUm.getUserInfo(callingUserId); |
| if (callingUserInfo != null && callingUserInfo.isManagedProfile()) { |
| Slog.w(TAG, message + " for another profile " |
| + targetUserId + " from " + callingUserId + " not allowed"); |
| return false; |
| } |
| } finally { |
| injectRestoreCallingIdentity(ident); |
| } |
| |
| return mUserManagerInternal.isProfileAccessible(injectCallingUserId(), targetUserId, |
| message, true); |
| } |
| |
| @VisibleForTesting // We override it in unit tests |
| void verifyCallingPackage(String callingPackage) { |
| int packageUid = -1; |
| try { |
| packageUid = AppGlobals.getPackageManager().getPackageUid(callingPackage, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE |
| | PackageManager.MATCH_UNINSTALLED_PACKAGES, |
| UserHandle.getUserId(getCallingUid())); |
| } catch (RemoteException ignore) { |
| } |
| if (packageUid < 0) { |
| Log.e(TAG, "Package not found: " + callingPackage); |
| } |
| if (packageUid != injectBinderCallingUid()) { |
| throw new SecurityException("Calling package name mismatch"); |
| } |
| } |
| |
| private ResolveInfo getHiddenAppActivityInfo(String packageName, int callingUid, |
| UserHandle user) { |
| Intent intent = new Intent(); |
| intent.setComponent(new ComponentName(packageName, |
| PackageManager.APP_DETAILS_ACTIVITY_CLASS_NAME)); |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| List<ResolveInfo> apps = pmInt.queryIntentActivities(intent, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| if (apps.size() > 0) { |
| return apps.get(0); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean shouldHideFromSuggestions(String packageName, UserHandle user) { |
| if (!canAccessProfile(user.getIdentifier(), "cannot get shouldHideFromSuggestions")) { |
| return false; |
| } |
| final PackageManagerInternal pmi = LocalServices.getService( |
| PackageManagerInternal.class); |
| int flags = pmi.getDistractingPackageRestrictions(packageName, user.getIdentifier()); |
| return (flags & PackageManager.RESTRICTION_HIDE_FROM_SUGGESTIONS) != 0; |
| } |
| |
| @Override |
| public ParceledListSlice<ResolveInfo> getLauncherActivities(String callingPackage, |
| String packageName, UserHandle user) throws RemoteException { |
| ParceledListSlice<ResolveInfo> launcherActivities = queryActivitiesForUser( |
| callingPackage, |
| new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_LAUNCHER) |
| .setPackage(packageName), |
| user); |
| if (Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.SHOW_HIDDEN_LAUNCHER_ICON_APPS_ENABLED, 1) == 0) { |
| return launcherActivities; |
| } |
| if (launcherActivities == null) { |
| // Cannot access profile, so we don't even return any hidden apps. |
| return null; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| final long ident = injectClearCallingIdentity(); |
| try { |
| if (mUm.getUserInfo(user.getIdentifier()).isManagedProfile()) { |
| // Managed profile should not show hidden apps |
| return launcherActivities; |
| } |
| if (mDpm.getDeviceOwnerComponentOnAnyUser() != null) { |
| // Device owner devices should not show hidden apps |
| return launcherActivities; |
| } |
| |
| final ArrayList<ResolveInfo> result = new ArrayList<>(launcherActivities.getList()); |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| if (packageName != null) { |
| // If this hidden app should not be shown, return the original list. |
| // Otherwise, inject hidden activity that forwards user to app details page. |
| if (result.size() > 0) { |
| return launcherActivities; |
| } |
| ApplicationInfo appInfo = pmInt.getApplicationInfo(packageName, /*flags*/ 0, |
| callingUid, user.getIdentifier()); |
| if (shouldShowSyntheticActivity(user, appInfo)) { |
| ResolveInfo info = getHiddenAppActivityInfo(packageName, callingUid, user); |
| if (info != null) { |
| result.add(info); |
| } |
| } |
| return new ParceledListSlice<>(result); |
| } |
| final HashSet<String> visiblePackages = new HashSet<>(); |
| for (ResolveInfo info : result) { |
| visiblePackages.add(info.activityInfo.packageName); |
| } |
| List<ApplicationInfo> installedPackages = pmInt.getInstalledApplications(0, |
| user.getIdentifier(), callingUid); |
| for (ApplicationInfo applicationInfo : installedPackages) { |
| if (!visiblePackages.contains(applicationInfo.packageName)) { |
| if (!shouldShowSyntheticActivity(user, applicationInfo)) { |
| continue; |
| } |
| ResolveInfo info = getHiddenAppActivityInfo(applicationInfo.packageName, |
| callingUid, user); |
| if (info != null) { |
| result.add(info); |
| } |
| } |
| } |
| return new ParceledListSlice<>(result); |
| } finally { |
| injectRestoreCallingIdentity(ident); |
| } |
| } |
| |
| private boolean shouldShowSyntheticActivity(UserHandle user, ApplicationInfo appInfo) { |
| if (appInfo == null || appInfo.isSystemApp() || appInfo.isUpdatedSystemApp()) { |
| return false; |
| } |
| if (!mVouchedSignaturesByUser.containsKey(user)) { |
| initVouchedSignatures(user); |
| } |
| if (isManagedProfileAdmin(user, appInfo.packageName)) { |
| return false; |
| } |
| if (mVouchProviders.contains(appInfo.packageName)) { |
| // If it's a vouching packages then we must show hidden app |
| return true; |
| } |
| // If app's signature is in vouch list, do not show hidden app |
| final Set<String> vouches = mVouchedSignaturesByUser.get(user); |
| try { |
| final PackageInfo pkgInfo = mContext.getPackageManager().getPackageInfo( |
| appInfo.packageName, PackageManager.GET_SIGNING_CERTIFICATES); |
| final Signature[] signatures = getLatestSignatures(pkgInfo.signingInfo); |
| // If any of the signatures appears in vouches, then we don't show hidden app |
| for (Signature signature : signatures) { |
| final String certDigest = computePackageCertDigest(signature); |
| if (vouches.contains(certDigest)) { |
| return false; |
| } |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| // Should not happen |
| } |
| return true; |
| } |
| |
| private boolean isManagedProfileAdmin(UserHandle user, String packageName) { |
| final List<UserInfo> userInfoList = mUm.getProfiles(user.getIdentifier()); |
| for (int i = 0; i < userInfoList.size(); i++) { |
| UserInfo userInfo = userInfoList.get(i); |
| if (!userInfo.isManagedProfile()) { |
| continue; |
| } |
| ComponentName componentName = mDpm.getProfileOwnerAsUser(userInfo.getUserHandle()); |
| if (componentName == null) { |
| continue; |
| } |
| if (componentName.getPackageName().equals(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @VisibleForTesting |
| static String computePackageCertDigest(Signature signature) { |
| MessageDigest messageDigest; |
| try { |
| messageDigest = MessageDigest.getInstance("SHA1"); |
| } catch (NoSuchAlgorithmException e) { |
| // Should not happen |
| return null; |
| } |
| messageDigest.update(signature.toByteArray()); |
| final byte[] digest = messageDigest.digest(); |
| return ByteStringUtils.toHexString(digest); |
| } |
| |
| @VisibleForTesting |
| static Signature[] getLatestSignatures(SigningInfo signingInfo) { |
| if (signingInfo.hasMultipleSigners()) { |
| return signingInfo.getApkContentsSigners(); |
| } else { |
| final Signature[] signatures = signingInfo.getSigningCertificateHistory(); |
| return new Signature[]{signatures[0]}; |
| } |
| } |
| |
| private void updateVouches(String packageName, UserHandle user) { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| ApplicationInfo appInfo = pmInt.getApplicationInfo(packageName, |
| PackageManager.GET_META_DATA, Binder.getCallingUid(), user.getIdentifier()); |
| if (appInfo == null) { |
| Log.w(TAG, "appInfo " + packageName + " is null"); |
| return; |
| } |
| updateVouches(appInfo, user); |
| } |
| |
| private void updateVouches(ApplicationInfo appInfo, UserHandle user) { |
| if (appInfo == null || appInfo.metaData == null) { |
| // No meta-data |
| return; |
| } |
| int tokenResourceId = appInfo.metaData.getInt(LauncherApps.VOUCHED_CERTS_KEY); |
| if (tokenResourceId == 0) { |
| // No xml file |
| return; |
| } |
| mVouchProviders.add(appInfo.packageName); |
| Set<String> vouches = mVouchedSignaturesByUser.get(user); |
| try { |
| List<String> signatures = Arrays.asList( |
| mContext.getPackageManager().getResourcesForApplication( |
| appInfo.packageName).getStringArray(tokenResourceId)); |
| for (String signature : signatures) { |
| vouches.add(signature.toUpperCase()); |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| // Should not happen |
| } |
| } |
| |
| private void initVouchedSignatures(UserHandle user) { |
| synchronized (mVouchedSignaturesLocked) { |
| if (mVouchedSignaturesByUser.contains(user)) { |
| return; |
| } |
| final long startTime = mStatLogger.getTime(); |
| |
| Set<String> vouches = Collections.newSetFromMap( |
| new ConcurrentHashMap<String, Boolean>()); |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| List<ApplicationInfo> installedPackages = pmInt.getInstalledApplications( |
| PackageManager.GET_META_DATA, user.getIdentifier(), callingUid); |
| for (ApplicationInfo appInfo : installedPackages) { |
| updateVouches(appInfo, user); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| mVouchedSignaturesByUser.putIfAbsent(user, vouches); |
| mStatLogger.logDurationStat(Stats.INIT_VOUCHED_SIGNATURES, startTime); |
| } |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpAndUsageStatsPermission(mContext, TAG, pw)) return; |
| mStatLogger.dump(pw, " "); |
| } |
| |
| @Override |
| public ActivityInfo resolveActivity( |
| String callingPackage, ComponentName component, UserHandle user) |
| throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot resolve activity")) { |
| return null; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| return pmInt.getActivityInfo(component, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public ParceledListSlice getShortcutConfigActivities( |
| String callingPackage, String packageName, UserHandle user) |
| throws RemoteException { |
| return queryActivitiesForUser(callingPackage, |
| new Intent(Intent.ACTION_CREATE_SHORTCUT).setPackage(packageName), user); |
| } |
| |
| private ParceledListSlice<ResolveInfo> queryActivitiesForUser(String callingPackage, |
| Intent intent, UserHandle user) { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot retrieve activities")) { |
| return null; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = injectClearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| List<ResolveInfo> apps = pmInt.queryIntentActivities(intent, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| return new ParceledListSlice<>(apps); |
| } finally { |
| injectRestoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public IntentSender getShortcutConfigActivityIntent(String callingPackage, |
| ComponentName component, UserHandle user) throws RemoteException { |
| ensureShortcutPermission(callingPackage); |
| if (!canAccessProfile(user.getIdentifier(), "Cannot check package")) { |
| return null; |
| } |
| Preconditions.checkNotNull(component); |
| |
| // All right, create the sender. |
| Intent intent = new Intent(Intent.ACTION_CREATE_SHORTCUT).setComponent(component); |
| final long identity = Binder.clearCallingIdentity(); |
| try { |
| final PendingIntent pi = PendingIntent.getActivityAsUser( |
| mContext, 0, intent, PendingIntent.FLAG_ONE_SHOT |
| | PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_CANCEL_CURRENT, |
| null, user); |
| return pi == null ? null : pi.getIntentSender(); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } |
| |
| @Override |
| public boolean isPackageEnabled(String callingPackage, String packageName, UserHandle user) |
| throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot check package")) { |
| return false; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| PackageInfo info = pmInt.getPackageInfo(packageName, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| return info != null && info.applicationInfo.enabled; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public Bundle getSuspendedPackageLauncherExtras(String packageName, |
| UserHandle user) { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot get launcher extras")) { |
| return null; |
| } |
| final PackageManagerInternal pmi = |
| LocalServices.getService(PackageManagerInternal.class); |
| return pmi.getSuspendedPackageLauncherExtras(packageName, user.getIdentifier()); |
| } |
| |
| @Override |
| public ApplicationInfo getApplicationInfo( |
| String callingPackage, String packageName, int flags, UserHandle user) |
| throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot check package")) { |
| return null; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| ApplicationInfo info = pmInt.getApplicationInfo(packageName, flags, |
| callingUid, user.getIdentifier()); |
| return info; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public LauncherApps.AppUsageLimit getAppUsageLimit(String callingPackage, |
| String packageName, UserHandle user) { |
| verifyCallingPackage(callingPackage); |
| if (!canAccessProfile(user.getIdentifier(), "Cannot access usage limit")) { |
| return null; |
| } |
| if (!mActivityTaskManagerInternal.isCallerRecents(Binder.getCallingUid())) { |
| throw new SecurityException("Caller is not the recents app"); |
| } |
| |
| final UsageStatsManagerInternal.AppUsageLimitData data = |
| mUsageStatsManagerInternal.getAppUsageLimit(packageName, user); |
| if (data == null) { |
| return null; |
| } |
| return new LauncherApps.AppUsageLimit( |
| data.getTotalUsageLimit(), data.getUsageRemaining()); |
| } |
| |
| private void ensureShortcutPermission(@NonNull String callingPackage) { |
| verifyCallingPackage(callingPackage); |
| if (!mShortcutServiceInternal.hasShortcutHostPermission(getCallingUserId(), |
| callingPackage, injectBinderCallingPid(), injectBinderCallingUid())) { |
| throw new SecurityException("Caller can't access shortcut information"); |
| } |
| } |
| |
| @Override |
| public ParceledListSlice getShortcuts(String callingPackage, long changedSince, |
| String packageName, List shortcutIds, ComponentName componentName, int flags, |
| UserHandle targetUser) { |
| ensureShortcutPermission(callingPackage); |
| if (!canAccessProfile(targetUser.getIdentifier(), "Cannot get shortcuts")) { |
| return new ParceledListSlice<>(Collections.EMPTY_LIST); |
| } |
| if (shortcutIds != null && packageName == null) { |
| throw new IllegalArgumentException( |
| "To query by shortcut ID, package name must also be set"); |
| } |
| |
| // TODO(b/29399275): Eclipse compiler requires explicit List<ShortcutInfo> cast below. |
| return new ParceledListSlice<>((List<ShortcutInfo>) |
| mShortcutServiceInternal.getShortcuts(getCallingUserId(), |
| callingPackage, changedSince, packageName, shortcutIds, |
| componentName, flags, targetUser.getIdentifier(), |
| injectBinderCallingPid(), injectBinderCallingUid())); |
| } |
| |
| @Override |
| public void pinShortcuts(String callingPackage, String packageName, List<String> ids, |
| UserHandle targetUser) { |
| ensureShortcutPermission(callingPackage); |
| if (!canAccessProfile(targetUser.getIdentifier(), "Cannot pin shortcuts")) { |
| return; |
| } |
| |
| mShortcutServiceInternal.pinShortcuts(getCallingUserId(), |
| callingPackage, packageName, ids, targetUser.getIdentifier()); |
| } |
| |
| @Override |
| public int getShortcutIconResId(String callingPackage, String packageName, String id, |
| int targetUserId) { |
| ensureShortcutPermission(callingPackage); |
| if (!canAccessProfile(targetUserId, "Cannot access shortcuts")) { |
| return 0; |
| } |
| |
| return mShortcutServiceInternal.getShortcutIconResId(getCallingUserId(), |
| callingPackage, packageName, id, targetUserId); |
| } |
| |
| @Override |
| public ParcelFileDescriptor getShortcutIconFd(String callingPackage, |
| String packageName, String id, int targetUserId) { |
| ensureShortcutPermission(callingPackage); |
| if (!canAccessProfile(targetUserId, "Cannot access shortcuts")) { |
| return null; |
| } |
| |
| return mShortcutServiceInternal.getShortcutIconFd(getCallingUserId(), |
| callingPackage, packageName, id, targetUserId); |
| } |
| |
| @Override |
| public boolean hasShortcutHostPermission(String callingPackage) { |
| verifyCallingPackage(callingPackage); |
| return mShortcutServiceInternal.hasShortcutHostPermission(getCallingUserId(), |
| callingPackage, injectBinderCallingPid(), injectBinderCallingUid()); |
| } |
| |
| @Override |
| public boolean startShortcut(String callingPackage, String packageName, String shortcutId, |
| Rect sourceBounds, Bundle startActivityOptions, int targetUserId) { |
| verifyCallingPackage(callingPackage); |
| if (!canAccessProfile(targetUserId, "Cannot start activity")) { |
| return false; |
| } |
| |
| // Even without the permission, pinned shortcuts are always launchable. |
| if (!mShortcutServiceInternal.isPinnedByCaller(getCallingUserId(), |
| callingPackage, packageName, shortcutId, targetUserId)) { |
| ensureShortcutPermission(callingPackage); |
| } |
| |
| final Intent[] intents = mShortcutServiceInternal.createShortcutIntents( |
| getCallingUserId(), callingPackage, packageName, shortcutId, targetUserId, |
| injectBinderCallingPid(), injectBinderCallingUid()); |
| if (intents == null || intents.length == 0) { |
| return false; |
| } |
| // Note the target activity doesn't have to be exported. |
| |
| intents[0].addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| intents[0].setSourceBounds(sourceBounds); |
| |
| return startShortcutIntentsAsPublisher( |
| intents, packageName, startActivityOptions, targetUserId); |
| } |
| |
| private boolean startShortcutIntentsAsPublisher(@NonNull Intent[] intents, |
| @NonNull String publisherPackage, Bundle startActivityOptions, int userId) { |
| final int code; |
| try { |
| code = mActivityTaskManagerInternal.startActivitiesAsPackage(publisherPackage, |
| userId, intents, startActivityOptions); |
| if (ActivityManager.isStartResultSuccessful(code)) { |
| return true; // Success |
| } else { |
| Log.e(TAG, "Couldn't start activity, code=" + code); |
| } |
| return false; |
| } catch (SecurityException e) { |
| if (DEBUG) { |
| Slog.d(TAG, "SecurityException while launching intent", e); |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean isActivityEnabled( |
| String callingPackage, ComponentName component, UserHandle user) |
| throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot check component")) { |
| return false; |
| } |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| ActivityInfo info = pmInt.getActivityInfo(component, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| // Note we don't check "exported" because if the caller has the same UID as the |
| // callee's UID, it can still be launched. |
| // (If an app doesn't export a front door activity and causes issues with the |
| // launcher, that's just the app's bug.) |
| return info != null && info.isEnabled(); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void startSessionDetailsActivityAsUser(IApplicationThread caller, |
| String callingPackage, SessionInfo sessionInfo, Rect sourceBounds, |
| Bundle opts, UserHandle userHandle) throws RemoteException { |
| int userId = userHandle.getIdentifier(); |
| if (!canAccessProfile(userId, "Cannot start details activity")) { |
| return; |
| } |
| |
| Intent i = new Intent(Intent.ACTION_VIEW) |
| .setData(new Uri.Builder() |
| .scheme("market") |
| .authority("details") |
| .appendQueryParameter("id", sessionInfo.appPackageName) |
| .build()) |
| .putExtra(Intent.EXTRA_REFERRER, new Uri.Builder().scheme("android-app") |
| .authority(callingPackage).build()); |
| i.setSourceBounds(sourceBounds); |
| |
| mActivityTaskManagerInternal.startActivityAsUser(caller, callingPackage, i, opts, |
| userId); |
| } |
| |
| @Override |
| public void startActivityAsUser(IApplicationThread caller, String callingPackage, |
| ComponentName component, Rect sourceBounds, |
| Bundle opts, UserHandle user) throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot start activity")) { |
| return; |
| } |
| |
| Intent launchIntent = new Intent(Intent.ACTION_MAIN); |
| launchIntent.addCategory(Intent.CATEGORY_LAUNCHER); |
| launchIntent.setSourceBounds(sourceBounds); |
| launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
| | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); |
| launchIntent.setPackage(component.getPackageName()); |
| |
| boolean canLaunch = false; |
| |
| final int callingUid = injectBinderCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final PackageManagerInternal pmInt = |
| LocalServices.getService(PackageManagerInternal.class); |
| // Check that the component actually has Intent.CATEGORY_LAUCNCHER |
| // as calling startActivityAsUser ignores the category and just |
| // resolves based on the component if present. |
| List<ResolveInfo> apps = pmInt.queryIntentActivities(launchIntent, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, |
| callingUid, user.getIdentifier()); |
| final int size = apps.size(); |
| for (int i = 0; i < size; ++i) { |
| ActivityInfo activityInfo = apps.get(i).activityInfo; |
| if (activityInfo.packageName.equals(component.getPackageName()) && |
| activityInfo.name.equals(component.getClassName())) { |
| if (!activityInfo.exported) { |
| throw new SecurityException("Cannot launch non-exported components " |
| + component); |
| } |
| |
| // Found an activity with category launcher that matches |
| // this component so ok to launch. |
| launchIntent.setPackage(null); |
| launchIntent.setComponent(component); |
| canLaunch = true; |
| break; |
| } |
| } |
| if (!canLaunch) { |
| throw new SecurityException("Attempt to launch activity without " |
| + " category Intent.CATEGORY_LAUNCHER " + component); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| mActivityTaskManagerInternal.startActivityAsUser(caller, callingPackage, |
| launchIntent, opts, user.getIdentifier()); |
| } |
| |
| @Override |
| public void showAppDetailsAsUser(IApplicationThread caller, |
| String callingPackage, ComponentName component, |
| Rect sourceBounds, Bundle opts, UserHandle user) throws RemoteException { |
| if (!canAccessProfile(user.getIdentifier(), "Cannot show app details")) { |
| return; |
| } |
| |
| final Intent intent; |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| String packageName = component.getPackageName(); |
| intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", packageName, null)); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); |
| intent.setSourceBounds(sourceBounds); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| mActivityTaskManagerInternal.startActivityAsUser(caller, callingPackage, |
| intent, opts, user.getIdentifier()); |
| } |
| |
| /** Checks if user is a profile of or same as listeningUser. |
| * and the user is enabled. */ |
| private boolean isEnabledProfileOf(UserHandle listeningUser, UserHandle user, |
| String debugMsg) { |
| return mUserManagerInternal.isProfileAccessible(listeningUser.getIdentifier(), |
| user.getIdentifier(), debugMsg, false); |
| } |
| |
| @VisibleForTesting |
| void postToPackageMonitorHandler(Runnable r) { |
| mCallbackHandler.post(r); |
| } |
| |
| private class VouchesChangedMonitor extends PackageMonitor { |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| updateVouches(packageName, new UserHandle(getChangingUserId())); |
| } |
| |
| @Override |
| public void onPackageModified(String packageName) { |
| updateVouches(packageName, new UserHandle(getChangingUserId())); |
| } |
| } |
| |
| private class MyPackageMonitor extends PackageMonitor implements ShortcutChangeListener { |
| |
| // TODO Simplify with lambdas. |
| |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackageAdded")) continue; |
| try { |
| listener.onPackageAdded(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackageAdded(packageName, uid); |
| } |
| |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackageRemoved")) continue; |
| try { |
| listener.onPackageRemoved(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackageRemoved(packageName, uid); |
| } |
| |
| @Override |
| public void onPackageModified(String packageName) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackageModified")) continue; |
| try { |
| listener.onPackageChanged(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackageModified(packageName); |
| } |
| |
| @Override |
| public void onPackagesAvailable(String[] packages) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackagesAvailable")) continue; |
| try { |
| listener.onPackagesAvailable(user, packages, isReplacing()); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackagesAvailable(packages); |
| } |
| |
| @Override |
| public void onPackagesUnavailable(String[] packages) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackagesUnavailable")) continue; |
| try { |
| listener.onPackagesUnavailable(user, packages, isReplacing()); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackagesUnavailable(packages); |
| } |
| |
| @Override |
| public void onPackagesSuspended(String[] packages, Bundle launcherExtras) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackagesSuspended")) continue; |
| try { |
| listener.onPackagesSuspended(user, packages, launcherExtras); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackagesSuspended(packages, launcherExtras); |
| } |
| |
| @Override |
| public void onPackagesUnsuspended(String[] packages) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| try { |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onPackagesUnsuspended")) continue; |
| try { |
| listener.onPackagesUnsuspended(user, packages); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| |
| super.onPackagesUnsuspended(packages); |
| } |
| |
| @Override |
| public void onShortcutChanged(@NonNull String packageName, |
| @UserIdInt int userId) { |
| postToPackageMonitorHandler(() -> onShortcutChangedInner(packageName, userId)); |
| } |
| |
| private void onShortcutChangedInner(@NonNull String packageName, |
| @UserIdInt int userId) { |
| final int n = mListeners.beginBroadcast(); |
| try { |
| final UserHandle user = UserHandle.of(userId); |
| |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| BroadcastCookie cookie = (BroadcastCookie) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(cookie.user, user, "onShortcutChanged")) continue; |
| |
| final int launcherUserId = cookie.user.getIdentifier(); |
| |
| // Make sure the caller has the permission. |
| if (!mShortcutServiceInternal.hasShortcutHostPermission( |
| launcherUserId, cookie.packageName, |
| cookie.callingPid, cookie.callingUid)) { |
| continue; |
| } |
| // Each launcher has a different set of pinned shortcuts, so we need to do a |
| // query in here. |
| // (As of now, only one launcher has the permission at a time, so it's bit |
| // moot, but we may change the permission model eventually.) |
| final List<ShortcutInfo> list = |
| mShortcutServiceInternal.getShortcuts(launcherUserId, |
| cookie.packageName, |
| /* changedSince= */ 0, packageName, /* shortcutIds=*/ null, |
| /* component= */ null, |
| ShortcutQuery.FLAG_GET_KEY_FIELDS_ONLY |
| | ShortcutQuery.FLAG_MATCH_ALL_KINDS_WITH_ALL_PINNED |
| , userId, cookie.callingPid, cookie.callingUid); |
| try { |
| listener.onShortcutChanged(user, packageName, |
| new ParceledListSlice<>(list)); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| } catch (RuntimeException e) { |
| // When the user is locked we get IllegalState, so just catch all. |
| Log.w(TAG, e.getMessage(), e); |
| } finally { |
| mListeners.finishBroadcast(); |
| } |
| } |
| } |
| |
| class PackageCallbackList<T extends IInterface> extends RemoteCallbackList<T> { |
| @Override |
| public void onCallbackDied(T callback, Object cookie) { |
| checkCallbackCount(); |
| } |
| } |
| } |
| } |