add safe mode

app/Http/Controllers/Admin/ConfigController.php

@@ -24,7 +24,7 @@ class ConfigController extends Controller
                     'invite_never_expire' => config('v2board.invite_never_expire', 0)
                 ],
                 'site' => [
-                    'save_mode' => (int)config('v2board.save_mode', 0),
+                    'safe_mode_enable' => (int)config('v2board.safe_mode_enable', 0),
                     'stop_register' => (int)config('v2board.stop_register', 0),
                     'email_verify' => (int)config('v2board.email_verify', 0),
                     'app_name' => config('v2board.app_name', 'V2Board'),

app/Http/Requests/Admin/ConfigSave.php

@@ -7,7 +7,7 @@ use Illuminate\Foundation\Http\FormRequest;
 class ConfigSave extends FormRequest
 {
     CONST RULES = [
-        'save_mode' => 'in:0,1',
+        'safe_mode_enable' => 'in:0,1',
         'invite_force' => 'in:0,1',
         'invite_commission' => 'integer',
         'invite_gen_limit' => 'integer',

routes/web.php

@@ -14,7 +14,7 @@ use Illuminate\Http\Request;
 */
 
 Route::get('/', function (Request $request) {
-    if (config('v2board.app_url')) {
+    if (config('v2board.app_url') && config('v2board.safe_mode_enable', 0)) {
         if ($request->server('HTTP_HOST') !== parse_url(config('v2board.app_url'))['host']) {
             abort(403);
         }