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      1 /*
      2  * Copyright (C) 2017 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 package android.webkit;
     17 
     18 import android.content.Context;
     19 import android.content.pm.ApplicationInfo;
     20 import android.content.pm.PackageInfo;
     21 import android.content.pm.PackageManager.NameNotFoundException;
     22 import android.content.pm.UserInfo;
     23 import android.os.Build;
     24 import android.os.UserManager;
     25 
     26 import java.util.ArrayList;
     27 import java.util.List;
     28 
     29 /**
     30  * Utility class for storing a (user,PackageInfo) mapping.
     31  * @hide
     32  */
     33 public class UserPackage {
     34     private final UserInfo mUserInfo;
     35     private final PackageInfo mPackageInfo;
     36 
     37     public static final int MINIMUM_SUPPORTED_SDK = Build.VERSION_CODES.P;
     38 
     39     public UserPackage(UserInfo user, PackageInfo packageInfo) {
     40         this.mUserInfo = user;
     41         this.mPackageInfo = packageInfo;
     42     }
     43 
     44     /**
     45      * Returns a list of (User,PackageInfo) pairs corresponding to the PackageInfos for all
     46      * device users for the package named {@param packageName}.
     47      */
     48     public static List<UserPackage> getPackageInfosAllUsers(Context context,
     49             String packageName, int packageFlags) {
     50         List<UserInfo> users = getAllUsers(context);
     51         List<UserPackage> userPackages = new ArrayList<UserPackage>(users.size());
     52         for (UserInfo user : users) {
     53             PackageInfo packageInfo = null;
     54             try {
     55                 packageInfo = context.getPackageManager().getPackageInfoAsUser(
     56                         packageName, packageFlags, user.id);
     57             } catch (NameNotFoundException e) {
     58             }
     59             userPackages.add(new UserPackage(user, packageInfo));
     60         }
     61         return userPackages;
     62     }
     63 
     64     /**
     65      * Returns whether the given package is enabled.
     66      * This state can be changed by the user from Settings->Apps
     67      */
     68     public boolean isEnabledPackage() {
     69         if (mPackageInfo == null) return false;
     70         return mPackageInfo.applicationInfo.enabled;
     71     }
     72 
     73     /**
     74      * Return {@code true} if the package is installed and not hidden
     75      */
     76     public boolean isInstalledPackage() {
     77         if (mPackageInfo == null) return false;
     78         return (((mPackageInfo.applicationInfo.flags & ApplicationInfo.FLAG_INSTALLED) != 0)
     79             && ((mPackageInfo.applicationInfo.privateFlags
     80                         & ApplicationInfo.PRIVATE_FLAG_HIDDEN) == 0));
     81     }
     82 
     83     /**
     84      * Returns whether the package represented by {@param packageInfo} targets a sdk version
     85      * supported by the current framework version.
     86      */
     87     public static boolean hasCorrectTargetSdkVersion(PackageInfo packageInfo) {
     88         return packageInfo.applicationInfo.targetSdkVersion >= MINIMUM_SUPPORTED_SDK;
     89     }
     90 
     91     public UserInfo getUserInfo() {
     92         return mUserInfo;
     93     }
     94 
     95     public PackageInfo getPackageInfo() {
     96         return mPackageInfo;
     97     }
     98 
     99 
    100     private static List<UserInfo> getAllUsers(Context context) {
    101         UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
    102         return userManager.getUsers(false);
    103     }
    104 
    105 }
    106