update

autoload/front/Controllers/ShopBasketController.php

@@ -3,6 +3,9 @@ namespace front\Controllers;
 
 class ShopBasketController
 {
+  private const ORDER_SUBMIT_TOKEN_SESSION_KEY = 'order-submit-token';
+  private const ORDER_SUBMIT_LAST_ORDER_ID_SESSION_KEY = 'order-submit-last-order-id';
+
   public static $title = [
       'mainView' => 'Koszyk'
   ];
@@ -274,6 +277,7 @@ class ShopBasketController
     }
 
     $client = \Shared\Helpers\Helpers::get_session( 'client' );
+    $orderSubmitToken = $this->createOrderSubmitToken();
 
     return \Shared\Tpl\Tpl::view( 'shop-basket/summary-view', [
           'lang_id'        => $lang_id,
@@ -284,12 +288,35 @@ class ShopBasketController
           'addresses'      => ( new \Domain\Client\ClientRepository( $GLOBALS['mdb'] ) )->clientAddresses( (int)$client['id'] ),
           'settings'       => $settings,
           'coupon'         => \Shared\Helpers\Helpers::get_session( 'coupon' ),
-          'basket_message' => \Shared\Helpers\Helpers::get_session( 'basket_message' )
+          'basket_message' => \Shared\Helpers\Helpers::get_session( 'basket_message' ),
+          'order_submit_token' => $orderSubmitToken
       ] );
   }
 
   public function basketSave()
   {
+    $orderSubmitToken = (string)\Shared\Helpers\Helpers::get( 'order_submit_token', true );
+    $existingOrderId = isset( $_SESSION[ self::ORDER_SUBMIT_LAST_ORDER_ID_SESSION_KEY ] ) ? (int)$_SESSION[ self::ORDER_SUBMIT_LAST_ORDER_ID_SESSION_KEY ] : 0;
+
+    if ( !$this->isValidOrderSubmitToken( $orderSubmitToken ) )
+    {
+      if ( $existingOrderId > 0 )
+      {
+        $existingOrderHash = $this->orderRepository->findHashById( $existingOrderId );
+        if ( $existingOrderHash )
+        {
+          header( 'Location: /zamowienie/' . $existingOrderHash );
+          exit;
+        }
+      }
+
+      \Shared\Helpers\Helpers::error( \Shared\Helpers\Helpers::lang( 'zamowienie-zostalo-zlozone-komunikat-blad' ) );
+      header( 'Location: /koszyk' );
+      exit;
+    }
+
+    $this->consumeOrderSubmitToken();
+
     $client = \Shared\Helpers\Helpers::get_session( 'client' );
 
     if ( \Domain\Basket\BasketCalculator::checkProductQuantityInStock( \Shared\Helpers\Helpers::get_session( 'basket' ) ) )
@@ -322,6 +349,7 @@ class ShopBasketController
         \Shared\Helpers\Helpers::get_session( 'basket_message' )
       ) )
     {
+      \Shared\Helpers\Helpers::set_session( self::ORDER_SUBMIT_LAST_ORDER_ID_SESSION_KEY, (int)$order_id );
       \Shared\Helpers\Helpers::alert( \Shared\Helpers\Helpers::lang( 'zamowienie-zostalo-zlozone-komunikat' ) );
       \Shared\Helpers\Helpers::delete_session( 'basket' );
       \Shared\Helpers\Helpers::delete_session( 'basket-transport-method-id' );
@@ -414,4 +442,45 @@ class ShopBasketController
     ] );
     exit;
   }
+
+  private function createOrderSubmitToken()
+  {
+    $token = $this->generateOrderSubmitToken();
+    \Shared\Helpers\Helpers::set_session( self::ORDER_SUBMIT_TOKEN_SESSION_KEY, $token );
+    \Shared\Helpers\Helpers::delete_session( self::ORDER_SUBMIT_LAST_ORDER_ID_SESSION_KEY );
+
+    return $token;
+  }
+
+  private function generateOrderSubmitToken()
+  {
+    try
+    {
+      return bin2hex( random_bytes( 16 ) );
+    }
+    catch ( \Exception $exception )
+    {
+      return md5( uniqid( (string)mt_rand(), true ) );
+    }
+  }
+
+  private function isValidOrderSubmitToken( $token )
+  {
+    if ( !$token )
+      return false;
+
+    $sessionToken = isset( $_SESSION[ self::ORDER_SUBMIT_TOKEN_SESSION_KEY ] ) ? (string)$_SESSION[ self::ORDER_SUBMIT_TOKEN_SESSION_KEY ] : '';
+    if ( !$sessionToken )
+      return false;
+
+    if ( function_exists( 'hash_equals' ) )
+      return hash_equals( $sessionToken, $token );
+
+    return $sessionToken === $token;
+  }
+
+  private function consumeOrderSubmitToken()
+  {
+    \Shared\Helpers\Helpers::delete_session( self::ORDER_SUBMIT_TOKEN_SESSION_KEY );
+  }
 }

templates/shop-basket/address-form.php

@@ -34,6 +34,7 @@
   <? endif;?>
   <? if ( $this -> client ):?><div class="right"><? endif;?>
   <form class="form-horizontal" action="/zloz-zamowienie" method="POST" id="form-order">
+    <input type="hidden" name="order_submit_token" value="<?= htmlspecialchars( (string)($this -> order_submit_token ?? ''), ENT_QUOTES, 'UTF-8' );?>">
     <? if ( !$this -> client ):?>
       <div class="form-group row">
         <div class="col-12">

templates/shop-basket/summary-view.php

@@ -140,14 +140,16 @@
           </div>
           <div class="right">
             <?= \Shared\Tpl\Tpl::view( 'shop-basket/address-form', [
-                'transport_method' => $this -> transport
+                'transport_method' => $this -> transport,
+                'order_submit_token' => $this -> order_submit_token
               ] );?>
           </div>
         <? else:?>
           <?= \Shared\Tpl\Tpl::view( 'shop-basket/address-form', [
               'client' => $this -> client,
               'addresses' => $this -> addresses,
-              'transport_method' => $this -> transport
+              'transport_method' => $this -> transport,
+              'order_submit_token' => $this -> order_submit_token
           ] );?>
         <? endif;?>
       </div>
@@ -156,17 +158,20 @@
   <? endif;?>
 </div>
 <script class="footer" type="text/javascript">
-  document.getElementById('order-send').addEventListener('click', function() {
+  var orderForm = document.getElementById('form-order');
-    var form = document.getElementById('form-order'); // Zastąp 'form-id' rzeczywistym ID Twojego formularza
+  var orderSendButton = document.getElementById('order-send');
-    if (form.checkValidity()) {
+
-      this.classList.add('loading-button');
+  if (orderForm && orderSendButton) {
-      this.disabled = true;
+    orderForm.addEventListener('submit', function(event) {
-      form.submit();
+      if (orderSendButton.disabled) {
-    } else {
+        event.preventDefault();
-      // Opcjonalnie: wywołaj funkcję reportValidity(), aby wyświetlić komunikaty o błędach formularza
+        return;
-      form.reportValidity();
+      }
-    }
+
-  });
+      orderSendButton.classList.add('loading-button');
+      orderSendButton.disabled = true;
+    });
+  }
   <? if ( $this -> settings['google_tag_manager_id'] ):?>
     dataLayer.push({ ecommerce: null });
     dataLayer.push({

templates_user/shop-basket/summary-view.php

@@ -134,14 +134,16 @@
           </div>
           <div class="right">
             <?= \Shared\Tpl\Tpl::view( 'shop-basket/address-form', [
-                'transport_method' => $this -> transport
+                'transport_method' => $this -> transport,
+                'order_submit_token' => $this -> order_submit_token
               ] );?>
           </div>
         <? else:?>
           <?= \Shared\Tpl\Tpl::view( 'shop-basket/address-form', [
               'client' => $this -> client,
               'addresses' => $this -> addresses,
-              'transport_method' => $this -> transport
+              'transport_method' => $this -> transport,
+              'order_submit_token' => $this -> order_submit_token
           ] );?>
         <? endif;?>
       </div>
@@ -150,18 +152,22 @@
   <? endif;?>
 </div>
 <script class="footer" type="text/javascript">
-  document.getElementById('order-send').addEventListener('click', function() {
+  var orderForm = document.getElementById('form-order');
-    var form = document.getElementById('form-order'); // Zastąp 'form-id' rzeczywistym ID Twojego formularza
+  var orderSendButton = document.getElementById('order-send');
-    if (form.checkValidity()) {
+
-      this.classList.add('loading-button');
+  if (orderForm && orderSendButton) {
-      this.disabled = true;
+    orderForm.addEventListener('submit', function(event) {
-      form.submit();
+      if (orderSendButton.disabled) {
-    } else {
+        event.preventDefault();
-      // Opcjonalnie: wywołaj funkcję reportValidity(), aby wyświetlić komunikaty o błędach formularza
+        return;
-      form.reportValidity();
+      }
-    }
+
-  });
+      orderSendButton.classList.add('loading-button');
+      orderSendButton.disabled = true;
+    });
+  }
   <? if ( $this -> settings['google_tag_manager_id'] ):?>
+    dataLayer.push({ ecommerce: null });
     dataLayer.push({
       event: "begin_checkout",
       ecommerce: {