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classes/checkout/CartChecksum.php

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+<?php
+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://devdocs.prestashop.com/ for more information.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+class CartChecksumCore implements ChecksumInterface
+{
+    public $addressChecksum = null;
+    private $separator = '_';
+    private $subseparator = '-';
+
+    public function __construct(AddressChecksum $addressChecksum)
+    {
+        $this->addressChecksum = $addressChecksum;
+    }
+
+    /**
+     * @param $cart
+     *
+     * @return string cart SHA1
+     */
+    public function generateChecksum($cart)
+    {
+        $uniq_id = '';
+        $uniq_id .= $cart->id_shop;
+        $uniq_id .= $this->separator;
+        $uniq_id .= $cart->id_customer;
+        $uniq_id .= $this->separator;
+        $uniq_id .= $cart->id_guest;
+        $uniq_id .= $this->separator;
+        $uniq_id .= $cart->id_currency;
+        $uniq_id .= $this->separator;
+        $uniq_id .= $cart->id_lang;
+        $uniq_id .= $this->separator;
+
+        $uniq_id .= $this->addressChecksum->generateChecksum(new Address($cart->id_address_delivery));
+        $uniq_id .= $this->separator;
+        $uniq_id .= $this->addressChecksum->generateChecksum(new Address($cart->id_address_invoice));
+        $uniq_id .= $this->separator;
+
+        $products = $cart->getProducts($refresh = true);
+        foreach ($products as $product) {
+            $uniq_id .= $product['id_shop']
+                . $this->subseparator
+                . $product['id_product']
+                . $this->subseparator
+                . $product['id_product_attribute']
+                . $this->subseparator
+                . $product['cart_quantity']
+                . $this->subseparator
+                . $product['total_wt'];
+            $uniq_id .= $this->separator;
+        }
+
+        $uniq_id = rtrim($uniq_id, $this->separator);
+        $uniq_id = rtrim($uniq_id, $this->subseparator);
+
+        return sha1($uniq_id);
+    }
+}