Restrict WifiDialogActivity

- Don't show WifiDialogActivity if user has DISALLOW_ADD_WIFI_CONFIG

Fix: 299931761
Bug: 314867581
Flag: None
Test: manual test with TestDPC
atest -c SettingsRoboTests:WifiDialogActivityTest

Change-Id: Icbb8f45922ded163208976be9c2816060dcf09f1

src/com/android/settings/wifi/WifiDialogActivity.java

@@ -17,6 +17,7 @@
 package com.android.settings.wifi;
 
 import static android.Manifest.permission.ACCESS_FINE_LOCATION;
+import static android.os.UserManager.DISALLOW_ADD_WIFI_CONFIG;
 import static android.os.UserManager.DISALLOW_CONFIG_WIFI;
 
 import android.app.KeyguardManager;
@@ -122,7 +123,7 @@ public class WifiDialogActivity extends ObservableActivity implements WifiDialog
         }
 
         super.onCreate(savedInstanceState);
-        if (!isConfigWifiAllowed()) {
+        if (!isConfigWifiAllowed() || !isAddWifiConfigAllowed()) {
             finish();
             return;
         }
@@ -393,6 +394,16 @@ public class WifiDialogActivity extends ObservableActivity implements WifiDialog
         return isConfigWifiAllowed;
     }
 
+    @VisibleForTesting
+    boolean isAddWifiConfigAllowed() {
+        UserManager userManager = getSystemService(UserManager.class);
+        if (userManager != null && userManager.hasUserRestriction(DISALLOW_ADD_WIFI_CONFIG)) {
+            Log.e(TAG, "The user is not allowed to add Wi-Fi configuration.");
+            return false;
+        }
+        return true;
+    }
+
     private boolean hasWifiManager() {
         if (mWifiManager != null) return true;
         mWifiManager = getSystemService(WifiManager.class);