Add PackageInstaller to SettingsLib.Utils.isEssentialPackage

Bug: 381357865
Flag: EXEMPT bugfix
Test: Settings > Apps > See all apps > Package installer
Change-Id: Id9a0b19458a2f3f62b35f3c684c3b5eada9fcf6e

1 files changed, 25 insertions, 0 deletions

diff --git a/packages/SettingsLib/src/com/android/settingslib/Utils.java b/packages/SettingsLib/src/com/android/settingslib/Utils.java
index 1998d0c6721c..2b8e20ffc71a 100644
--- a/packages/SettingsLib/src/com/android/settingslib/Utils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/Utils.java
@@ -10,6 +10,7 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
 import android.content.pm.Signature;
 import android.content.pm.UserInfo;
 import android.content.res.ColorStateList;
@@ -32,6 +33,7 @@ import android.media.AudioManager;
 import android.net.ConnectivityManager;
 import android.net.NetworkCapabilities;
 import android.net.TetheringManager;
+import android.net.Uri;
 import android.net.vcn.VcnUtils;
 import android.net.wifi.WifiInfo;
 import android.os.BatteryManager;
@@ -79,11 +81,14 @@ public class Utils {
     @VisibleForTesting
     static final String STORAGE_MANAGER_ENABLED_PROPERTY = "ro.storage_manager.enabled";
 
+    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
+
     private static Signature[] sSystemSignature;
     private static String sPermissionControllerPackageName;
     private static String sServicesSystemSharedLibPackageName;
     private static String sSharedSystemSharedLibPackageName;
     private static String sDefaultWebViewPackageName;
+    private static String sPackageInstallerPackageName;
 
     static final int[] WIFI_PIE = {
         com.android.internal.R.drawable.ic_wifi_signal_0,
@@ -496,9 +501,29 @@ public class Utils {
                 || packageName.equals(sSharedSystemSharedLibPackageName)
                 || packageName.equals(PrintManager.PRINT_SPOOLER_PACKAGE_NAME)
                 || packageName.equals(getDefaultWebViewPackageName(pm))
+                || packageName.equals(getPackageInstallerPackageName(pm))
                 || isDeviceProvisioningPackage(resources, packageName);
     }
 
+    /** Return the package name of the installer */
+    private static String getPackageInstallerPackageName(PackageManager pm) {
+        if (sPackageInstallerPackageName != null) {
+            return sPackageInstallerPackageName;
+        }
+        final Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
+        intent.addCategory(Intent.CATEGORY_DEFAULT);
+        intent.setDataAndType(Uri.parse("content://com.example/foo.apk"), PACKAGE_MIME_TYPE);
+        final List<ResolveInfo> matches =
+                pm.queryIntentActivities(intent, PackageManager.GET_META_DATA);
+        if (matches.size() == 1) {
+            final ResolveInfo resolveInfo = matches.get(0);
+            if (resolveInfo.activityInfo.applicationInfo.isPrivilegedApp()) {
+                sPackageInstallerPackageName = resolveInfo.getComponentInfo().packageName;
+            }
+        }
+        return sPackageInstallerPackageName;
+    }
+
     /**
      * Returns {@code true} if the supplied package is the device provisioning app. Otherwise,
      * returns {@code false}.