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      1 /*
      2  * Copyright (C) 2018 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.server.connectivity;
     18 
     19 import static android.Manifest.permission.CHANGE_NETWORK_STATE;
     20 import static android.Manifest.permission.CHANGE_WIFI_STATE;
     21 import static android.Manifest.permission.CONNECTIVITY_INTERNAL;
     22 import static android.Manifest.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS;
     23 import static android.Manifest.permission.NETWORK_STACK;
     24 import static android.content.pm.ApplicationInfo.FLAG_SYSTEM;
     25 import static android.content.pm.PackageManager.GET_PERMISSIONS;
     26 
     27 import static org.junit.Assert.assertFalse;
     28 import static org.junit.Assert.assertTrue;
     29 import static org.mockito.Mockito.anyInt;
     30 import static org.mockito.Mockito.eq;
     31 import static org.mockito.Mockito.when;
     32 
     33 import android.content.Context;
     34 import android.content.pm.ApplicationInfo;
     35 import android.content.pm.PackageInfo;
     36 import android.content.pm.PackageManager;
     37 import android.support.test.filters.SmallTest;
     38 import android.support.test.runner.AndroidJUnit4;
     39 
     40 import org.junit.Before;
     41 import org.junit.Test;
     42 import org.junit.runner.RunWith;
     43 import org.mockito.Mock;
     44 import org.mockito.MockitoAnnotations;
     45 
     46 @RunWith(AndroidJUnit4.class)
     47 @SmallTest
     48 public class PermissionMonitorTest {
     49     private static final int MOCK_UID = 10001;
     50     private static final String[] MOCK_PACKAGE_NAMES = new String[] { "com.foo.bar" };
     51 
     52     @Mock private Context mContext;
     53     @Mock private PackageManager mPackageManager;
     54 
     55     private PermissionMonitor mPermissionMonitor;
     56 
     57     @Before
     58     public void setUp() throws Exception {
     59         MockitoAnnotations.initMocks(this);
     60         when(mContext.getPackageManager()).thenReturn(mPackageManager);
     61         when(mPackageManager.getPackagesForUid(MOCK_UID)).thenReturn(MOCK_PACKAGE_NAMES);
     62         mPermissionMonitor = new PermissionMonitor(mContext, null);
     63     }
     64 
     65     private void expectPermission(String[] permissions, boolean preinstalled) throws Exception {
     66         final PackageInfo packageInfo = packageInfoWithPermissions(permissions, preinstalled);
     67         when(mPackageManager.getPackageInfoAsUser(
     68                 eq(MOCK_PACKAGE_NAMES[0]), eq(GET_PERMISSIONS), anyInt())).thenReturn(packageInfo);
     69     }
     70 
     71     private PackageInfo packageInfoWithPermissions(String[] permissions, boolean preinstalled) {
     72         final PackageInfo packageInfo = new PackageInfo();
     73         packageInfo.requestedPermissions = permissions;
     74         packageInfo.applicationInfo = new ApplicationInfo();
     75         packageInfo.applicationInfo.flags = preinstalled ? FLAG_SYSTEM : 0;
     76         return packageInfo;
     77     }
     78 
     79     @Test
     80     public void testHasPermission() {
     81         PackageInfo app = packageInfoWithPermissions(new String[] {}, false);
     82         assertFalse(mPermissionMonitor.hasPermission(app, CHANGE_NETWORK_STATE));
     83         assertFalse(mPermissionMonitor.hasPermission(app, NETWORK_STACK));
     84         assertFalse(mPermissionMonitor.hasPermission(app, CONNECTIVITY_USE_RESTRICTED_NETWORKS));
     85         assertFalse(mPermissionMonitor.hasPermission(app, CONNECTIVITY_INTERNAL));
     86 
     87         app = packageInfoWithPermissions(new String[] {
     88                 CHANGE_NETWORK_STATE, NETWORK_STACK
     89             }, false);
     90         assertTrue(mPermissionMonitor.hasPermission(app, CHANGE_NETWORK_STATE));
     91         assertTrue(mPermissionMonitor.hasPermission(app, NETWORK_STACK));
     92         assertFalse(mPermissionMonitor.hasPermission(app, CONNECTIVITY_USE_RESTRICTED_NETWORKS));
     93         assertFalse(mPermissionMonitor.hasPermission(app, CONNECTIVITY_INTERNAL));
     94 
     95         app = packageInfoWithPermissions(new String[] {
     96                 CONNECTIVITY_USE_RESTRICTED_NETWORKS, CONNECTIVITY_INTERNAL
     97             }, false);
     98         assertFalse(mPermissionMonitor.hasPermission(app, CHANGE_NETWORK_STATE));
     99         assertFalse(mPermissionMonitor.hasPermission(app, NETWORK_STACK));
    100         assertTrue(mPermissionMonitor.hasPermission(app, CONNECTIVITY_USE_RESTRICTED_NETWORKS));
    101         assertTrue(mPermissionMonitor.hasPermission(app, CONNECTIVITY_INTERNAL));
    102     }
    103 
    104     @Test
    105     public void testIsPreinstalledSystemApp() {
    106         PackageInfo app = packageInfoWithPermissions(new String[] {}, false);
    107         assertFalse(mPermissionMonitor.isPreinstalledSystemApp(app));
    108 
    109         app = packageInfoWithPermissions(new String[] {}, true);
    110         assertTrue(mPermissionMonitor.isPreinstalledSystemApp(app));
    111     }
    112 
    113     @Test
    114     public void testHasUseBackgroundNetworksPermission() throws Exception {
    115         expectPermission(new String[] { CHANGE_NETWORK_STATE }, false);
    116         assertTrue(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    117 
    118         expectPermission(new String[] { NETWORK_STACK, CONNECTIVITY_INTERNAL }, false);
    119         assertTrue(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    120 
    121         // TODO : make this false when b/31479477 is fixed
    122         expectPermission(new String[] {}, true);
    123         assertTrue(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    124         expectPermission(new String[] { CHANGE_WIFI_STATE }, true);
    125         assertTrue(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    126 
    127         expectPermission(new String[] { NETWORK_STACK, CONNECTIVITY_INTERNAL }, true);
    128         assertTrue(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    129 
    130         expectPermission(new String[] {}, false);
    131         assertFalse(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    132 
    133         expectPermission(new String[] { CHANGE_WIFI_STATE }, false);
    134         assertFalse(mPermissionMonitor.hasUseBackgroundNetworksPermission(MOCK_UID));
    135     }
    136 }
    137