[RESTRICT AUTOMERGE] Restrict WifiDppConfiguratorActivity

- Don't show WifiDppConfiguratorActivity if user has DISALLOW_ADD_WIFI_CONFIG

- Don't show AddNetworkFragment if user has DISALLOW_ADD_WIFI_CONFIG

Fix: 299931076
Flag: None
Test: manual test with TestDPC
atest -c SettingsUnitTests:AddNetworkFragmentTest \
         SettingsUnitTests:WifiDppConfiguratorActivityTest

Change-Id: I34afe0f698e2dc43eba59b25f5f3f4f61e70166a
Merged-In: I34afe0f698e2dc43eba59b25f5f3f4f61e70166a

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

@@ -16,11 +16,16 @@
 
 package com.android.settings.wifi;
 
+import static android.os.UserManager.DISALLOW_ADD_WIFI_CONFIG;
+
 import android.app.Activity;
 import android.app.settings.SettingsEnums;
+import android.content.Context;
 import android.content.Intent;
 import android.net.wifi.WifiConfiguration;
 import android.os.Bundle;
+import android.os.UserManager;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -41,6 +46,7 @@ import com.android.settings.wifi.dpp.WifiDppUtils;
  */
 public class AddNetworkFragment extends InstrumentedFragment implements WifiConfigUiBase2,
         View.OnClickListener {
+    private static final String TAG = "AddNetworkFragment";
 
     public static final String WIFI_CONFIG_KEY = "wifi_config_key";
     @VisibleForTesting
@@ -58,6 +64,10 @@ public class AddNetworkFragment extends InstrumentedFragment implements WifiConf
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        if (!isAddWifiConfigAllowed(getContext())) {
+            getActivity().finish();
+            return;
+        }
     }
 
     @Override
@@ -209,4 +219,14 @@ public class AddNetworkFragment extends InstrumentedFragment implements WifiConf
         activity.setResult(Activity.RESULT_CANCELED);
         activity.finish();
     }
+
+    @VisibleForTesting
+    static boolean isAddWifiConfigAllowed(Context context) {
+        UserManager userManager = context.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;
+    }
 }