release 2.3.1

app/build.gradle

@@ -6,8 +6,8 @@ android {
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 28
-        versionCode 276
-        versionName "2.3.0"
+        versionCode 277
+        versionName "2.3.1"
         multiDexEnabled true
         renderscriptTargetApi 28 as int
         renderscriptSupportModeEnabled true

app/src/main/java/app/fedilab/android/activities/LoginActivity.java

@@ -273,6 +273,10 @@ public class LoginActivity extends BaseActivity {
                         return;
                     }
                     instance = login_instance.getText().toString().trim().toLowerCase();
+                    if(instance.endsWith(".gab.com") || instance.equals("gab.com")){
+                        Toasty.error(LoginActivity.this,getString(R.string.client_error), Toast.LENGTH_LONG).show();
+                        return;
+                    }
                     connect_button.setEnabled(false);
                     new Thread(new Runnable(){
                         @Override