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      1 /*
      2  * Copyright (C) 2016 Google Inc.
      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 android.os.cts;
     18 
     19 import static org.junit.Assert.assertTrue;
     20 import static org.junit.Assert.fail;
     21 
     22 import android.content.Intent;
     23 import android.content.pm.ApplicationInfo;
     24 import android.content.pm.PackageInfo;
     25 import android.content.pm.PackageManager;
     26 import android.content.pm.ResolveInfo;
     27 import android.net.Uri;
     28 import android.support.test.InstrumentationRegistry;
     29 import android.support.test.runner.AndroidJUnit4;
     30 import org.junit.Test;
     31 import org.junit.runner.RunWith;
     32 
     33 import java.io.File;
     34 import java.util.List;
     35 
     36 import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AWARE;
     37 import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
     38 import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY;
     39 
     40 /**
     41  * Tests whether all platform components that are implemented
     42  * as APKs for various reasons are present.
     43  */
     44 @RunWith(AndroidJUnit4.class)
     45 public class RequiredComponentsTest {
     46     private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
     47 
     48     @Test
     49     public void testPackageInstallerPresent() throws Exception {
     50         Intent installerIntent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
     51         installerIntent.addCategory(Intent.CATEGORY_DEFAULT);
     52         installerIntent.setDataAndType(Uri.fromFile(new File("foo.apk")), PACKAGE_MIME_TYPE);
     53         List<ResolveInfo> installers = InstrumentationRegistry.getContext()
     54                 .getPackageManager().queryIntentActivities(installerIntent, MATCH_SYSTEM_ONLY
     55                         | MATCH_DIRECT_BOOT_AWARE | MATCH_DIRECT_BOOT_UNAWARE);
     56         if (installers.size() == 1) {
     57             ResolveInfo resolveInfo = installers.get(0);
     58             if (!resolveInfo.activityInfo.applicationInfo.isPrivilegedApp()) {
     59                 fail("The installer must be a privileged app");
     60             }
     61         } else {
     62             fail("There must be exactly one installer; found " + installers);
     63         }
     64     }
     65 
     66     @Test
     67     public void testExtServicesPresent() throws Exception {
     68         enforceSharedLibPresentAndProperlyHosted(
     69                 PackageManager.SYSTEM_SHARED_LIBRARY_SERVICES,
     70                 ApplicationInfo.FLAG_SYSTEM,
     71                 ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
     72     }
     73 
     74     @Test
     75     public void testSharedServicesPresent() throws Exception {
     76         enforceSharedLibPresentAndProperlyHosted(
     77                 PackageManager.SYSTEM_SHARED_LIBRARY_SHARED,
     78                 ApplicationInfo.FLAG_SYSTEM, 0);
     79     }
     80 
     81     private void enforceSharedLibPresentAndProperlyHosted(String libName,
     82             int requiredHostAppFlags, int requiredHostAppPrivateFlags) throws Exception {
     83         PackageManager packageManager = InstrumentationRegistry.getContext()
     84                 .getPackageManager();
     85 
     86         // Is the lib present?
     87         String[] libs = packageManager.getSystemSharedLibraryNames();
     88         boolean libPresent = false;
     89         for (String lib : libs) {
     90             if (libName.equals(lib)) {
     91                 libPresent = true;
     92                 break;
     93             }
     94         }
     95         if (!libPresent) {
     96             fail("Missing required shared library:" + libName);
     97         }
     98 
     99         // Is it properly hosted?
    100         String packageName = packageManager.getServicesSystemSharedLibraryPackageName();
    101         PackageInfo packageInfo = packageManager.getPackageInfo(packageName, 0);
    102 
    103         assertTrue(libName + " must be hosted by a system app with flags:"
    104                 + requiredHostAppFlags, (packageInfo.applicationInfo.flags
    105                 & requiredHostAppFlags) == requiredHostAppFlags);
    106 
    107         assertTrue(libName + " must be hosted by a system app with private flags:"
    108                 + requiredHostAppPrivateFlags, (packageInfo.applicationInfo.privateFlags
    109                 & requiredHostAppPrivateFlags) == requiredHostAppPrivateFlags);
    110     }
    111 }
    112