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.applications;
18 
19 import static com.android.settings.testutils.ApplicationTestUtils.buildInfo;
20 
21 import static com.google.common.truth.Truth.assertThat;
22 
23 import static org.mockito.ArgumentMatchers.anyInt;
24 import static org.mockito.ArgumentMatchers.anyObject;
25 import static org.mockito.ArgumentMatchers.eq;
26 import static org.mockito.Mockito.atLeast;
27 import static org.mockito.Mockito.verify;
28 import static org.mockito.Mockito.verifyNoMoreInteractions;
29 import static org.mockito.Mockito.when;
30 
31 import android.app.admin.DevicePolicyManager;
32 import android.content.Context;
33 import android.content.pm.ApplicationInfo;
34 import android.content.pm.IPackageManager;
35 import android.content.pm.PackageManager;
36 import android.content.pm.UserInfo;
37 import android.os.Build;
38 import android.os.RemoteException;
39 import android.os.UserHandle;
40 import android.os.UserManager;
41 
42 import java.util.Collections;
43 import org.junit.Before;
44 import org.junit.Test;
45 import org.junit.runner.RunWith;
46 import org.mockito.Mock;
47 import org.mockito.MockitoAnnotations;
48 import org.robolectric.RobolectricTestRunner;
49 import org.robolectric.shadows.ShadowApplication;
50 
51 import java.util.Arrays;
52 
53 @RunWith(RobolectricTestRunner.class)
54 public final class AppWithAdminGrantedPermissionsCounterTest {
55 
56     private final String APP_1 = "app1";
57     private final String APP_2 = "app2";
58     private final String APP_3 = "app3";
59     private final String APP_4 = "app4";
60     private final String APP_5 = "app5";
61     private final String APP_6 = "app6";
62 
63     private final int MAIN_USER_ID = 0;
64     private final int MANAGED_PROFILE_ID = 10;
65 
66     private final int PER_USER_UID_RANGE = 100000;
67     private final int APP_1_UID = MAIN_USER_ID * PER_USER_UID_RANGE + 1;
68     private final int APP_2_UID = MAIN_USER_ID * PER_USER_UID_RANGE + 2;
69     private final int APP_3_UID = MAIN_USER_ID * PER_USER_UID_RANGE + 3;
70     private final int APP_4_UID = MAIN_USER_ID * PER_USER_UID_RANGE + 4;
71     private final int APP_5_UID = MAIN_USER_ID * PER_USER_UID_RANGE + 5;
72     private final int APP_6_UID = MANAGED_PROFILE_ID * PER_USER_UID_RANGE + 1;
73 
74     private final String PERMISSION_1 = "some.permission.1";
75     private final String PERMISSION_2 = "some.permission.2";
76     private final String[] PERMISSIONS = {PERMISSION_1, PERMISSION_2};
77 
78     @Mock
79     private UserManager mUserManager;
80     @Mock
81     private Context mContext;
82     @Mock
83     private PackageManager mPackageManager;
84     @Mock
85     private IPackageManager mPackageManagerService;
86     @Mock
87     private DevicePolicyManager mDevicePolicyManager;
88 
89     private int mAppCount = -1;
90     private ApplicationInfo mApp1;
91     private ApplicationInfo mApp2;
92     private ApplicationInfo mApp3;
93     private ApplicationInfo mApp4;
94     private ApplicationInfo mApp5;
95     private ApplicationInfo mApp6;
96 
97     @Before
setUp()98     public void setUp() {
99         MockitoAnnotations.initMocks(this);
100         when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);
101 
102         mApp1 = buildInfo(APP_1_UID, APP_1, 0 /* flags */, Build.VERSION_CODES.M);
103         mApp2 = buildInfo(APP_2_UID, APP_2, 0 /* flags */, Build.VERSION_CODES.M);
104         mApp3 = buildInfo(APP_3_UID, APP_3, 0 /* flags */, Build.VERSION_CODES.LOLLIPOP);
105         mApp4 = buildInfo(APP_4_UID, APP_4, 0 /* flags */, Build.VERSION_CODES.LOLLIPOP);
106         mApp5 = buildInfo(APP_5_UID, APP_5, 0 /* flags */, Build.VERSION_CODES.LOLLIPOP);
107         mApp6 = buildInfo(APP_6_UID, APP_6, 0 /* flags */, Build.VERSION_CODES.M);
108     }
109 
verifyCountInstalledApps(boolean async)110     private void verifyCountInstalledApps(boolean async) throws Exception {
111         configureUserManager();
112         configurePackageManager();
113         configureRunTimePermissions();
114         configureInstallTimePermissions();
115 
116         // Count the number of all apps installed that were granted on or more permissions by the
117         // admin.
118         if (async) {
119             (new AppWithAdminGrantedPermissionsCounterTestable(PERMISSIONS)).execute();
120             // Wait for the background task to finish.
121             ShadowApplication.runBackgroundTasks();
122         } else {
123             (new AppWithAdminGrantedPermissionsCounterTestable(PERMISSIONS)).executeInForeground();
124         }
125         assertThat(mAppCount).isEqualTo(3);
126 
127         // Verify that installed packages were retrieved the current user and the user's managed
128         // profile only.
129         verify(mPackageManager).getInstalledApplicationsAsUser(anyInt(), eq(MAIN_USER_ID));
130         verify(mPackageManager).getInstalledApplicationsAsUser(anyInt(),
131                 eq(MANAGED_PROFILE_ID));
132         verify(mPackageManager, atLeast(0)).getInstallReason(anyObject(), anyObject());
133         verifyNoMoreInteractions(mPackageManager);
134     }
135 
136     @Test
testIncludeInCount()137     public void testIncludeInCount() throws Exception {
138         configurePackageManager();
139         configureRunTimePermissions();
140         configureInstallTimePermissions();
141 
142         assertThat(AppWithAdminGrantedPermissionsCounter.includeInCount(PERMISSIONS,
143                 mDevicePolicyManager, mPackageManager, mPackageManagerService, mApp1)).isTrue();
144 
145         assertThat(AppWithAdminGrantedPermissionsCounter.includeInCount(PERMISSIONS,
146                 mDevicePolicyManager, mPackageManager, mPackageManagerService, mApp2)).isFalse();
147 
148         assertThat(AppWithAdminGrantedPermissionsCounter.includeInCount(PERMISSIONS,
149                 mDevicePolicyManager, mPackageManager, mPackageManagerService, mApp3)).isTrue();
150 
151         assertThat(AppWithAdminGrantedPermissionsCounter.includeInCount(PERMISSIONS,
152                 mDevicePolicyManager, mPackageManager, mPackageManagerService, mApp4)).isFalse();
153 
154         assertThat(AppWithAdminGrantedPermissionsCounter.includeInCount(PERMISSIONS,
155                 mDevicePolicyManager, mPackageManager, mPackageManagerService, mApp5)).isFalse();
156     }
157 
158     @Test
testCountInstalledAppsSync()159     public void testCountInstalledAppsSync() throws Exception {
160         verifyCountInstalledApps(false /* async */);
161     }
162 
163     @Test
testCountInstalledAppsAync()164     public void testCountInstalledAppsAync() throws Exception {
165         verifyCountInstalledApps(true /* async */);
166     }
167 
configureInstallTimePermissions()168     private void configureInstallTimePermissions() throws RemoteException {
169         when(mPackageManagerService.checkUidPermission(anyObject(), eq(APP_1_UID)))
170                 .thenReturn(PackageManager.PERMISSION_DENIED);
171         when(mPackageManagerService.checkUidPermission(anyObject(), eq(APP_2_UID)))
172                 .thenReturn(PackageManager.PERMISSION_DENIED);
173         when(mPackageManagerService.checkUidPermission(PERMISSION_1, APP_3_UID))
174                 .thenReturn(PackageManager.PERMISSION_DENIED);
175         when(mPackageManagerService.checkUidPermission(PERMISSION_2, APP_3_UID))
176                 .thenReturn(PackageManager.PERMISSION_GRANTED);
177         when(mPackageManagerService.checkUidPermission(PERMISSION_1, APP_4_UID))
178                 .thenReturn(PackageManager.PERMISSION_DENIED);
179         when(mPackageManagerService.checkUidPermission(PERMISSION_2, APP_4_UID))
180                 .thenReturn(PackageManager.PERMISSION_GRANTED);
181         when(mPackageManagerService.checkUidPermission(anyObject(), eq(APP_5_UID)))
182                 .thenReturn(PackageManager.PERMISSION_DENIED);
183         when(mPackageManagerService.checkUidPermission(anyObject(), eq(APP_6_UID)))
184                 .thenReturn(PackageManager.PERMISSION_DENIED);
185     }
186 
configureRunTimePermissions()187     private void configureRunTimePermissions() {
188         when(mDevicePolicyManager.getPermissionGrantState(null, APP_1, PERMISSION_1))
189                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
190         when(mDevicePolicyManager.getPermissionGrantState(null, APP_1, PERMISSION_2))
191                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED);
192         when(mDevicePolicyManager.getPermissionGrantState(eq(null), eq(APP_2), anyObject()))
193                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED);
194         when(mDevicePolicyManager.getPermissionGrantState(eq(null), eq(APP_3), anyObject()))
195                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED);
196         when(mDevicePolicyManager.getPermissionGrantState(eq(null), eq(APP_4), anyObject()))
197                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED);
198         when(mDevicePolicyManager.getPermissionGrantState(eq(null), eq(APP_5), anyObject()))
199                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED);
200         when(mDevicePolicyManager.getPermissionGrantState(eq(null), eq(APP_6), anyObject()))
201                 .thenReturn(DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
202     }
203 
configurePackageManager()204     private void configurePackageManager() {
205         // The first user has five apps installed:
206         // * app1 uses run-time permissions. It has been granted one of the permissions by the
207         //        admin. It should be counted.
208         // * app2 uses run-time permissions. It has not been granted any of the permissions by the
209         //        admin. It should not be counted.
210         // * app3 uses install-time permissions. It was installed by the admin and requested one of
211         //        the permissions. It should be counted.
212         // * app4 uses install-time permissions. It was not installed by the admin but did request
213         //        one of the permissions. It should not be counted.
214         // * app5 uses install-time permissions. It was installed by the admin but did not request
215         //        any of the permissions. It should not be counted.
216         when(mPackageManager.getInstalledApplicationsAsUser(PackageManager.GET_DISABLED_COMPONENTS
217                         | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS
218                         | PackageManager.MATCH_ANY_USER,
219                 MAIN_USER_ID)).thenReturn(Arrays.asList(mApp1, mApp2, mApp3, mApp4, mApp5));
220         // The second user has one app installed. This app uses run-time permissions. It has been
221         // granted both permissions by the admin. It should be counted.
222         when(mPackageManager.getInstalledApplicationsAsUser(PackageManager.GET_DISABLED_COMPONENTS
223                         | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS,
224                 MANAGED_PROFILE_ID)).thenReturn(Collections.singletonList(mApp6));
225 
226         // app3 and app5 were installed by enterprise policy.
227         final UserHandle mainUser = new UserHandle(MAIN_USER_ID);
228         when(mPackageManager.getInstallReason(APP_1, mainUser))
229                 .thenReturn(PackageManager.INSTALL_REASON_UNKNOWN);
230         when(mPackageManager.getInstallReason(APP_2, mainUser))
231                 .thenReturn(PackageManager.INSTALL_REASON_UNKNOWN);
232         when(mPackageManager.getInstallReason(APP_3, mainUser))
233                 .thenReturn(PackageManager.INSTALL_REASON_POLICY);
234         when(mPackageManager.getInstallReason(APP_4, mainUser))
235                 .thenReturn(PackageManager.INSTALL_REASON_UNKNOWN);
236         when(mPackageManager.getInstallReason(APP_5, mainUser))
237                 .thenReturn(PackageManager.INSTALL_REASON_POLICY);
238         // app6 was not installed by enterprise policy.
239         final UserHandle managedProfileUser = new UserHandle(MANAGED_PROFILE_ID);
240         when(mPackageManager.getInstallReason(APP_6, managedProfileUser))
241                 .thenReturn(PackageManager.INSTALL_REASON_UNKNOWN);
242     }
243 
configureUserManager()244     private void configureUserManager() {
245         // There are two users.
246         when(mUserManager.getProfiles(UserHandle.myUserId())).thenReturn(Arrays.asList(
247                 new UserInfo(MAIN_USER_ID, "main", UserInfo.FLAG_ADMIN),
248                 new UserInfo(MANAGED_PROFILE_ID, "managed profile", 0)));
249     }
250 
251     private class AppWithAdminGrantedPermissionsCounterTestable
252             extends AppWithAdminGrantedPermissionsCounter {
AppWithAdminGrantedPermissionsCounterTestable(String[] permissions)253         private AppWithAdminGrantedPermissionsCounterTestable(String[] permissions) {
254             super(mContext, permissions, mPackageManager, mPackageManagerService,
255                     mDevicePolicyManager);
256         }
257 
258         @Override
onCountComplete(int num)259         protected void onCountComplete(int num) {
260             mAppCount = num;
261         }
262     }
263 }
264