1 /*
2  * Copyright (C) 2023 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.adservices.service.measurement.util;
18 
19 import android.content.Context;
20 import android.content.pm.ApplicationInfo;
21 import android.content.pm.PackageManager;
22 import android.net.Uri;
23 
24 import com.android.adservices.service.common.compat.PackageManagerCompatUtils;
25 
26 import java.util.List;
27 import java.util.stream.Collectors;
28 
29 /** Application utilities for measurement. */
30 public class Applications {
31     public static final String ANDROID_APP_SCHEME = "android-app";
32     public static final String SCHEME_DELIMITER = "://";
33 
34     /**
35      * @param context the context of the application.
36      * @return the list of currently installed applications.
37      */
getCurrentInstalledApplicationsList(Context context)38     public static List<Uri> getCurrentInstalledApplicationsList(Context context) {
39         PackageManager packageManager = context.getPackageManager();
40         List<ApplicationInfo> applicationInfoList =
41                 PackageManagerCompatUtils.getInstalledApplications(
42                         packageManager, PackageManager.GET_META_DATA);
43 
44         return applicationInfoList.stream()
45                 .map(
46                         applicationInfo ->
47                                 Uri.parse(
48                                         ANDROID_APP_SCHEME
49                                                 + SCHEME_DELIMITER
50                                                 + applicationInfo.packageName))
51                 .collect(Collectors.toList());
52     }
53 
54     /**
55      * @param context the context of the application.
56      * @param appDestinations the list of apps to check install status.
57      * @return true if any of the apps are installed currently.
58      */
anyAppsInstalled(Context context, List<Uri> appDestinations)59     public static boolean anyAppsInstalled(Context context, List<Uri> appDestinations) {
60         return appDestinations.stream()
61                 .anyMatch(
62                         uri -> {
63                             try {
64                                 context.getPackageManager().getApplicationInfo(uri.getHost(), 0);
65                                 return true;
66                             } catch (PackageManager.NameNotFoundException e) {
67                                 return false;
68                             }
69                         });
70     }
71 }
72