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
17package com.android.settings.testutils.shadow;
18
19import android.content.Context;
20import android.content.pm.PackageManager;
21import android.support.annotation.NonNull;
22import android.support.v4.content.PermissionChecker;
23import android.text.TextUtils;
24
25import org.robolectric.annotation.Implementation;
26import org.robolectric.annotation.Implements;
27
28import java.util.HashMap;
29import java.util.Map;
30import java.util.Objects;
31
32/**
33 * This class provides shadow for API that is not supported in current roboletric
34 */
35@Implements(PermissionChecker.class)
36public class ShadowPermissionChecker {
37
38    private static Map<PermissionInfo, Integer> sPermissions = new HashMap<>();
39
40    public static void clear() {
41        sPermissions.clear();
42    }
43
44    public static void addPermission(String permission, int pid, int uid, String packageName,
45            int permissionValue) {
46        sPermissions.put(new PermissionInfo(permission, pid, uid, packageName), permissionValue);
47    }
48
49    @Implementation
50    public static int checkPermission(@NonNull Context context, @NonNull String permission,
51            int pid, int uid, String packageName) {
52        return sPermissions.getOrDefault(new PermissionInfo(permission, pid, uid, packageName),
53                PackageManager.PERMISSION_DENIED);
54    }
55
56    private static class PermissionInfo {
57        private final int mPid;
58        private final int mUid;
59        private final String mPackageName;
60        private final String mPermission;
61
62        public PermissionInfo(String permission, int pid, int uid, String packageName) {
63            mPid = pid;
64            mUid = uid;
65            mPackageName = packageName;
66            mPermission = permission;
67        }
68
69        @Override
70        public boolean equals(Object obj) {
71            if (this == obj) {
72                return true;
73            }
74            if (!(obj instanceof PermissionInfo)) {
75                return false;
76            }
77
78            final PermissionInfo other = (PermissionInfo) obj;
79            return mPid == other.mPid
80                    && mUid == other.mUid
81                    && TextUtils.equals(mPackageName, other.mPackageName)
82                    && TextUtils.equals(mPermission, other.mPermission);
83        }
84
85        @Override
86        public int hashCode() {
87            return Objects.hash(mPid, mUid, mPackageName, mPermission);
88        }
89    }
90}
91