Env Validator Added

config/app.php

@@ -64,7 +64,7 @@ return [
     |
     */
 
-    'admin_url' => env('APP_ADMIN_URL', 'admin'),    
+    'admin_url' => env('APP_ADMIN_URL', 'admin'),
 
     /*
     |--------------------------------------------------------------------------
@@ -128,7 +128,7 @@ return [
     | Here you may specify the base currency code for your application.
     |
     */
-    
+
     'currency' => env('APP_CURRENCY', 'USD'),
 
     /*
@@ -263,6 +263,7 @@ return [
         Webkul\Category\Providers\CategoryServiceProvider::class,
         Webkul\Attribute\Providers\AttributeServiceProvider::class,
         Webkul\Core\Providers\CoreServiceProvider::class,
+        Webkul\Core\Providers\EnvValidatorServiceProvider::class,
         Webkul\Shop\Providers\ShopServiceProvider::class,
         Webkul\Customer\Providers\CustomerServiceProvider::class,
         Webkul\Inventory\Providers\InventoryServiceProvider::class,

packages/Webkul/Core/src/Providers/EnvValidatorServiceProvider.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Webkul\Core\Providers;
+
+use Illuminate\Support\ServiceProvider;
+use Illuminate\Support\Facades\Validator;
+
+class EnvValidatorServiceProvider extends ServiceProvider
+{
+    /*
+     * Set environment variable rules.
+     */
+    protected $rules = [
+        'DB_PREFIX' => 'not_regex:/[^A-Za-z0-9]/'
+    ];
+
+    /*
+     * Set environment variable error messages.
+     */
+    protected $messages = [
+        'not_regex' => 'DB_PREFIX ENV is not valid.'
+    ];
+
+    /**
+     * Bootstrap services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $validator = Validator::make($_ENV, $this->rules, $this->messages);
+
+        if ($validator->fails()) {
+            abort(500, $validator->errors()->first());
+        }
+    }
+
+    /**
+     * Register services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        //
+    }
+}