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 
17 package com.android.settings.intelligence.suggestions.eligibility;
18 
19 import android.content.Context;
20 import android.content.pm.ApplicationInfo;
21 import android.content.pm.PackageManager;
22 import android.content.pm.ResolveInfo;
23 import android.content.res.Resources;
24 import android.util.Log;
25 
26 public class ProviderEligibilityChecker {
27     /**
28      * If defined and not true, do not should optional step.
29      */
30     private static final String META_DATA_IS_SUPPORTED = "com.android.settings.is_supported";
31     private static final String TAG = "ProviderEligibility";
32 
isEligible(Context context, String id, ResolveInfo info)33     public static boolean isEligible(Context context, String id, ResolveInfo info) {
34         return isSystemApp(id, info)
35                 && isEnabledInMetadata(context, id, info);
36     }
37 
isSystemApp(String id, ResolveInfo info)38     private static boolean isSystemApp(String id, ResolveInfo info) {
39         final boolean isSystemApp = info != null
40                 && info.activityInfo != null
41                 && info.activityInfo.applicationInfo != null
42                 && (info.activityInfo.applicationInfo.flags
43                 & ApplicationInfo.FLAG_SYSTEM) != 0;
44         if (!isSystemApp) {
45             Log.i(TAG, id + " is not system app, not eligible for suggestion");
46         }
47         return isSystemApp;
48     }
49 
isEnabledInMetadata(Context context, String id, ResolveInfo info)50     private static boolean isEnabledInMetadata(Context context, String id, ResolveInfo info) {
51         final int isSupportedResource = info.activityInfo.metaData.getInt(META_DATA_IS_SUPPORTED);
52         try {
53             final Resources res = context.getPackageManager()
54                     .getResourcesForApplication(info.activityInfo.applicationInfo);
55             boolean isSupported =
56                     isSupportedResource != 0 ? res.getBoolean(isSupportedResource) : true;
57             if (!isSupported) {
58                 Log.i(TAG, id + " requires unsupported resource " + isSupportedResource);
59             }
60             return isSupported;
61         } catch (PackageManager.NameNotFoundException e) {
62             Log.w(TAG, "Cannot find resources for " + id, e);
63             return false;
64         } catch (Resources.NotFoundException e) {
65             Log.w(TAG, "Cannot find resources for " + id, e);
66             return false;
67         }
68     }
69 }
70