| /* |
| * 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.app.AppGlobals; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.ILauncherApps; |
| import android.content.pm.IOnAppsChangedListener; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.UserInfo; |
| import android.graphics.Rect; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.IInterface; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import com.android.internal.content.PackageMonitor; |
| import com.android.server.SystemService; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * 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); |
| } |
| |
| class LauncherAppsImpl extends ILauncherApps.Stub { |
| private static final boolean DEBUG = false; |
| private static final String TAG = "LauncherAppsService"; |
| private final Context mContext; |
| private final PackageManager mPm; |
| private final UserManager mUm; |
| private final PackageCallbackList<IOnAppsChangedListener> mListeners |
| = new PackageCallbackList<IOnAppsChangedListener>(); |
| |
| private MyPackageMonitor mPackageMonitor = new MyPackageMonitor(); |
| |
| public LauncherAppsImpl(Context context) { |
| mContext = context; |
| mPm = mContext.getPackageManager(); |
| mUm = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| } |
| |
| /* |
| * @see android.content.pm.ILauncherApps#addOnAppsChangedListener( |
| * android.content.pm.IOnAppsChangedListener) |
| */ |
| @Override |
| public void addOnAppsChangedListener(IOnAppsChangedListener listener) throws RemoteException { |
| 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, Binder.getCallingUserHandle()); |
| } |
| } |
| |
| /* |
| * @see android.content.pm.ILauncherApps#removeOnAppsChangedListener( |
| * android.content.pm.IOnAppsChangedListener) |
| */ |
| @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(); |
| } |
| } |
| } |
| |
| /** |
| * Register a receiver to watch for package broadcasts |
| */ |
| private void startWatchingPackageBroadcasts() { |
| mPackageMonitor.register(mContext, null, UserHandle.ALL, true); |
| } |
| |
| /** |
| * 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 caller is in the same group as the userToCheck. |
| */ |
| private void ensureInUserProfiles(UserHandle userToCheck, String message) { |
| final int callingUserId = UserHandle.getCallingUserId(); |
| final int targetUserId = userToCheck.getIdentifier(); |
| |
| if (targetUserId == callingUserId) return; |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| UserInfo callingUserInfo = mUm.getUserInfo(callingUserId); |
| UserInfo targetUserInfo = mUm.getUserInfo(targetUserId); |
| if (targetUserInfo == null |
| || targetUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID |
| || targetUserInfo.profileGroupId != callingUserInfo.profileGroupId) { |
| throw new SecurityException(message); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| /** |
| * Checks if the user is enabled. |
| */ |
| private boolean isUserEnabled(UserHandle user) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| UserInfo targetUserInfo = mUm.getUserInfo(user.getIdentifier()); |
| return targetUserInfo != null && targetUserInfo.isEnabled(); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public List<ResolveInfo> getLauncherActivities(String packageName, UserHandle user) |
| throws RemoteException { |
| ensureInUserProfiles(user, "Cannot retrieve activities for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| return new ArrayList<ResolveInfo>(); |
| } |
| |
| final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); |
| mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); |
| mainIntent.setPackage(packageName); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| List<ResolveInfo> apps = mPm.queryIntentActivitiesAsUser(mainIntent, 0 /* flags */, |
| user.getIdentifier()); |
| return apps; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public ResolveInfo resolveActivity(Intent intent, UserHandle user) |
| throws RemoteException { |
| ensureInUserProfiles(user, "Cannot resolve activity for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| return null; |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| ResolveInfo app = mPm.resolveActivityAsUser(intent, 0, user.getIdentifier()); |
| return app; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public boolean isPackageEnabled(String packageName, UserHandle user) |
| throws RemoteException { |
| ensureInUserProfiles(user, "Cannot check package for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| return false; |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| IPackageManager pm = AppGlobals.getPackageManager(); |
| PackageInfo info = pm.getPackageInfo(packageName, 0, user.getIdentifier()); |
| return info != null && info.applicationInfo.enabled; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public boolean isActivityEnabled(ComponentName component, UserHandle user) |
| throws RemoteException { |
| ensureInUserProfiles(user, "Cannot check component for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| return false; |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| IPackageManager pm = AppGlobals.getPackageManager(); |
| ActivityInfo info = pm.getActivityInfo(component, 0, user.getIdentifier()); |
| return info != null; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void startActivityAsUser(ComponentName component, Rect sourceBounds, |
| Bundle opts, UserHandle user) throws RemoteException { |
| ensureInUserProfiles(user, "Cannot start activity for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| throw new IllegalStateException("Cannot start activity for disabled profile " + user); |
| } |
| |
| Intent launchIntent = new Intent(Intent.ACTION_MAIN); |
| launchIntent.addCategory(Intent.CATEGORY_LAUNCHER); |
| launchIntent.setSourceBounds(sourceBounds); |
| launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| launchIntent.setPackage(component.getPackageName()); |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| IPackageManager pm = AppGlobals.getPackageManager(); |
| ActivityInfo info = pm.getActivityInfo(component, 0, user.getIdentifier()); |
| if (!info.exported) { |
| throw new SecurityException("Cannot launch non-exported components " |
| + component); |
| } |
| |
| // 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 = mPm.queryIntentActivitiesAsUser(launchIntent, |
| 0 /* flags */, 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())) { |
| // Found an activity with category launcher that matches |
| // this component so ok to launch. |
| launchIntent.setComponent(component); |
| mContext.startActivityAsUser(launchIntent, opts, user); |
| return; |
| } |
| } |
| throw new SecurityException("Attempt to launch activity without " |
| + " category Intent.CATEGORY_LAUNCHER " + component); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void showAppDetailsAsUser(ComponentName component, Rect sourceBounds, |
| Bundle opts, UserHandle user) throws RemoteException { |
| ensureInUserProfiles(user, "Cannot show app details for unrelated profile " + user); |
| if (!isUserEnabled(user)) { |
| throw new IllegalStateException("Cannot show app details for disabled profile " |
| + user); |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| String packageName = component.getPackageName(); |
| Intent 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.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); |
| intent.setSourceBounds(sourceBounds); |
| mContext.startActivityAsUser(intent, opts, user); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| |
| private class MyPackageMonitor extends PackageMonitor { |
| |
| /** Checks if user is a profile of or same as listeningUser. |
| * and the user is enabled. */ |
| private boolean isEnabledProfileOf(UserHandle user, UserHandle listeningUser, |
| String debugMsg) { |
| if (user.getIdentifier() == listeningUser.getIdentifier()) { |
| if (DEBUG) Log.d(TAG, "Delivering msg to same user " + debugMsg); |
| return true; |
| } |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| UserInfo userInfo = mUm.getUserInfo(user.getIdentifier()); |
| UserInfo listeningUserInfo = mUm.getUserInfo(listeningUser.getIdentifier()); |
| if (userInfo == null || listeningUserInfo == null |
| || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID |
| || userInfo.profileGroupId != listeningUserInfo.profileGroupId |
| || !userInfo.isEnabled()) { |
| if (DEBUG) { |
| Log.d(TAG, "Not delivering msg from " + user + " to " + listeningUser + ":" |
| + debugMsg); |
| } |
| return false; |
| } else { |
| if (DEBUG) { |
| Log.d(TAG, "Delivering msg from " + user + " to " + listeningUser + ":" |
| + debugMsg); |
| } |
| return true; |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| UserHandle listeningUser = (UserHandle) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(user, listeningUser, "onPackageAdded")) continue; |
| try { |
| listener.onPackageAdded(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| mListeners.finishBroadcast(); |
| |
| super.onPackageAdded(packageName, uid); |
| } |
| |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| UserHandle listeningUser = (UserHandle) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(user, listeningUser, "onPackageRemoved")) continue; |
| try { |
| listener.onPackageRemoved(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| mListeners.finishBroadcast(); |
| |
| super.onPackageRemoved(packageName, uid); |
| } |
| |
| @Override |
| public void onPackageModified(String packageName) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| UserHandle listeningUser = (UserHandle) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(user, listeningUser, "onPackageModified")) continue; |
| try { |
| listener.onPackageChanged(user, packageName); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| mListeners.finishBroadcast(); |
| |
| super.onPackageModified(packageName); |
| } |
| |
| @Override |
| public void onPackagesAvailable(String[] packages) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| UserHandle listeningUser = (UserHandle) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(user, listeningUser, "onPackagesAvailable")) continue; |
| try { |
| listener.onPackagesAvailable(user, packages, isReplacing()); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| mListeners.finishBroadcast(); |
| |
| super.onPackagesAvailable(packages); |
| } |
| |
| @Override |
| public void onPackagesUnavailable(String[] packages) { |
| UserHandle user = new UserHandle(getChangingUserId()); |
| final int n = mListeners.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| IOnAppsChangedListener listener = mListeners.getBroadcastItem(i); |
| UserHandle listeningUser = (UserHandle) mListeners.getBroadcastCookie(i); |
| if (!isEnabledProfileOf(user, listeningUser, "onPackagesUnavailable")) continue; |
| try { |
| listener.onPackagesUnavailable(user, packages, isReplacing()); |
| } catch (RemoteException re) { |
| Slog.d(TAG, "Callback failed ", re); |
| } |
| } |
| mListeners.finishBroadcast(); |
| |
| super.onPackagesUnavailable(packages); |
| } |
| |
| } |
| |
| class PackageCallbackList<T extends IInterface> extends RemoteCallbackList<T> { |
| @Override |
| public void onCallbackDied(T callback, Object cookie) { |
| checkCallbackCount(); |
| } |
| } |
| } |
| } |