Merge "Fixes DPMS.getEnforcingAdminAndUserDetailsInternal()" into sc-v2-dev

packages/SettingsLib/src/com/android/settingslib/RestrictedLockUtilsInternal.java

@@ -38,6 +38,7 @@ import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.style.ForegroundColorSpan;
 import android.text.style.ImageSpan;
+import android.util.Log;
 import android.view.MenuItem;
 import android.widget.TextView;
 
@@ -54,6 +55,7 @@ import java.util.List;
 public class RestrictedLockUtilsInternal extends RestrictedLockUtils {
 
     private static final String LOG_TAG = "RestrictedLockUtils";
+    private static final boolean DEBUG = Log.isLoggable(LOG_TAG, Log.DEBUG);
 
     /**
      * @return drawables for displaying with settings that are locked by a device admin.
@@ -92,14 +94,25 @@ public class RestrictedLockUtilsInternal extends RestrictedLockUtils {
         }
 
         final UserManager um = UserManager.get(context);
+        final UserHandle userHandle = UserHandle.of(userId);
         final List<UserManager.EnforcingUser> enforcingUsers =
-                um.getUserRestrictionSources(userRestriction, UserHandle.of(userId));
+                um.getUserRestrictionSources(userRestriction, userHandle);
 
         if (enforcingUsers.isEmpty()) {
             // Restriction is not enforced.
             return null;
-        } else if (enforcingUsers.size() > 1) {
-            return EnforcedAdmin.createDefaultEnforcedAdminWithRestriction(userRestriction);
+        }
+        final int size = enforcingUsers.size();
+        if (size > 1) {
+            final EnforcedAdmin enforcedAdmin = EnforcedAdmin
+                    .createDefaultEnforcedAdminWithRestriction(userRestriction);
+            enforcedAdmin.user = userHandle;
+            if (DEBUG) {
+                Log.d(LOG_TAG, "Multiple (" + size + ") enforcing users for restriction '"
+                        + userRestriction + "' on user " + userHandle + "; returning default admin "
+                        + "(" + enforcedAdmin + ")");
+            }
+            return enforcedAdmin;
         }
 
         final int restrictionSource = enforcingUsers.get(0).getUserRestrictionSource();

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

@@ -258,6 +258,7 @@ import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.os.UserManager.UserRestrictionSource;
 import android.os.storage.StorageManager;
 import android.permission.AdminPermissionControlParams;
 import android.permission.IPermissionManager;
@@ -286,6 +287,7 @@ import android.text.format.DateUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.AtomicFile;
+import android.util.DebugUtils;
 import android.util.IndentingPrintWriter;
 import android.util.Log;
 import android.util.Pair;
@@ -13225,14 +13227,29 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
             try {
                 List<UserManager.EnforcingUser> sources = mUserManager
                         .getUserRestrictionSources(restriction, UserHandle.of(userId));
-                if (sources == null || sources.isEmpty()) {
+                if (sources == null) {
                     // The restriction is not enforced.
                     return null;
-                } else if (sources.size() > 1) {
+                }
+                int sizeBefore = sources.size();
+                if (sizeBefore > 1) {
+                    Slogf.d(LOG_TAG, "getEnforcingAdminAndUserDetailsInternal(%d, %s): "
+                            + "%d sources found, excluding those set by UserManager",
+                            userId, restriction, sizeBefore);
+                    sources = getDevicePolicySources(sources);
+                }
+                if (sources.isEmpty()) {
+                    // The restriction is not enforced (or is just enforced by the system)
+                    return null;
+                }
+
+                if (sources.size() > 1) {
                     // In this case, we'll show an admin support dialog that does not
                     // specify the admin.
                     // TODO(b/128928355): if this restriction is enforced by multiple DPCs, return
                     // the admin for the calling user.
+                    Slogf.w(LOG_TAG, "getEnforcingAdminAndUserDetailsInternal(%d, %s): multiple "
+                            + "sources for restriction %s on user %d", restriction, userId);
                     result = new Bundle();
                     result.putInt(Intent.EXTRA_USER_ID, userId);
                     return result;
@@ -13277,6 +13294,32 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
         return null;
     }
 
+    /**
+     *  Excludes restrictions imposed by UserManager.
+     */
+    private List<UserManager.EnforcingUser> getDevicePolicySources(
+            List<UserManager.EnforcingUser> sources) {
+        int sizeBefore = sources.size();
+        List<UserManager.EnforcingUser> realSources = new ArrayList<>(sizeBefore);
+        for (int i = 0; i < sizeBefore; i++) {
+            UserManager.EnforcingUser source = sources.get(i);
+            int type = source.getUserRestrictionSource();
+            if (type != UserManager.RESTRICTION_SOURCE_PROFILE_OWNER
+                    && type != UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) {
+                // TODO(b/128928355): add unit test
+                Slogf.d(LOG_TAG, "excluding source of type %s at index %d",
+                        userRestrictionSourceToString(type), i);
+                continue;
+            }
+            realSources.add(source);
+        }
+        return realSources;
+    }
+
+    private static String userRestrictionSourceToString(@UserRestrictionSource int source) {
+        return DebugUtils.flagsToString(UserManager.class, "RESTRICTION_", source);
+    }
+
     /**
      * @param restriction The restriction enforced by admin. It could be any user restriction or
      *                    policy like {@link DevicePolicyManager#POLICY_DISABLE_CAMERA} and