Fix a bug in UserSystemPackageInstaller#installWhitelistedSystemPackages

When userWhitelist was not null, it only mutated the packages in
userWhitelist, and other packages left untouched.
The correct behavior is to iterate all packages and install or
uninstall according to userWhitelist.

BYPASS_INCLUSIVE_LANGUAGE_REASON=existing code that cannot be changed

Fixes: 234877652

Test: atest UserSystemPackageInstallerTest
Test: Manual test with gcar_emu_x86_64 emulator

(cherry picked from commit 2fce0901463af17ebfdb557d01b41cc5e4e97ecf)
Merged-In: I4325565d8acaeffd4aab5a4b6295d325edb738a9
Change-Id: I4325565d8acaeffd4aab5a4b6295d325edb738a9

1 files changed, 14 insertions, 31 deletions

diff --git a/services/core/java/com/android/server/pm/UserSystemPackageInstaller.java b/services/core/java/com/android/server/pm/UserSystemPackageInstaller.java
index 60864a37ef45..dfb4f2425ba7 100644
--- a/services/core/java/com/android/server/pm/UserSystemPackageInstaller.java
+++ b/services/core/java/com/android/server/pm/UserSystemPackageInstaller.java
@@ -219,38 +219,21 @@ class UserSystemPackageInstaller {
 
         // Install/uninstall system packages per user.
         for (int userId : mUm.getUserIds()) {
-            final Set<String> userWhitelist = getInstallablePackagesForUserId(userId);
-
-            // If null, run for all packages
-            if (userWhitelist == null) {
-                pmInt.forEachPackageState(packageState -> {
-                    if (packageState.getPkg() == null) {
-                        return;
-                    }
-                    final boolean install = !packageState.getTransientState()
-                            .isHiddenUntilInstalled();
-                    if (packageState.getUserStateOrDefault(userId).isInstalled() != install
-                            && shouldChangeInstallationState(packageState, install, userId,
-                            isFirstBoot, isConsideredUpgrade, preExistingPackages)) {
-                        changesToCommit.add(userId, packageState.getPackageName(), install);
-                    }
-                });
-            } else {
-                for (String packageName : userWhitelist) {
-                    PackageStateInternal packageState = pmInt.getPackageStateInternal(packageName);
-                    if (packageState.getPkg() == null) {
-                        continue;
-                    }
-
-                    final boolean install = !packageState.getTransientState()
-                            .isHiddenUntilInstalled();
-                    if (packageState.getUserStateOrDefault(userId).isInstalled() != install
-                            && shouldChangeInstallationState(packageState, install, userId,
-                            isFirstBoot, isConsideredUpgrade, preExistingPackages)) {
-                        changesToCommit.add(userId, packageState.getPackageName(), install);
-                    }
+            final Set<String> userAllowlist = getInstallablePackagesForUserId(userId);
+
+            pmInt.forEachPackageState(packageState -> {
+                if (packageState.getPkg() == null) {
+                    return;
                 }
-            }
+                boolean install = (userAllowlist == null
+                                || userAllowlist.contains(packageState.getPackageName()))
+                        && !packageState.getTransientState().isHiddenUntilInstalled();
+                if (packageState.getUserStateOrDefault(userId).isInstalled() != install
+                        && shouldChangeInstallationState(packageState, install, userId,
+                        isFirstBoot, isConsideredUpgrade, preExistingPackages)) {
+                    changesToCommit.add(userId, packageState.getPackageName(), install);
+                }
+            });
         }
 
         pmInt.commitPackageStateMutation(null, packageStateMutator -> {