Replace client token by user id token

controllers/front/token.php

@@ -18,66 +18,37 @@
  * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License version 3.0
  */
 
+use PrestaShop\Module\PrestashopCheckout\CommandBus\CommandBusInterface;
 use PrestaShop\Module\PrestashopCheckout\Controller\AbstractFrontController;
-use PrestaShop\Module\PrestashopCheckout\PayPal\PayPalClientTokenProvider;
+use PrestaShop\Module\PrestashopCheckout\PayPal\OAuth\Query\GetPayPalGetUserIdTokenQuery;
+use PrestaShop\Module\PrestashopCheckout\PayPal\OAuth\Query\GetPayPalGetUserIdTokenQueryResult;
+use Psr\Log\LoggerInterface;
 
 /**
- * This controller receive ajax call to retrieve a PayPal Client Token
+ * This controller receive ajax call to retrieve a PayPal User Id Token
  */
 class Ps_CheckoutTokenModuleFrontController extends AbstractFrontController
 {
-    /**
-     * @var Ps_checkout
-     */
-    public $module;
-
     /**
      * @see FrontController::postProcess()
-     *
-     * @todo Move logic to a Service and refactor
      */
     public function postProcess()
     {
         try {
-            if (false === Validate::isLoadedObject($this->context->cart)) {
-                $this->exitWithResponse([
-                    'httpCode' => 400,
-                    'body' => 'No cart found.',
-                ]);
-            }
-
-            /** @var PayPalClientTokenProvider $clientTokenProvider */
-            $clientTokenProvider = $this->module->getService('ps_checkout.paypal.provider.client_token');
-
-            /** @var \PrestaShop\Module\PrestashopCheckout\Repository\PsCheckoutCartRepository $psCheckoutCartRepository */
-            $psCheckoutCartRepository = $this->module->getService('ps_checkout.repository.pscheckoutcart');
-
-            /** @var PsCheckoutCart|false $psCheckoutCart */
-            $psCheckoutCart = $psCheckoutCartRepository->findOneByCartId((int) $this->context->cart->id);
-
-            if (false === $psCheckoutCart) {
-                $psCheckoutCart = new PsCheckoutCart();
-                $psCheckoutCart->id_cart = (int) $this->context->cart->id;
-            }
-
-            if ($psCheckoutCart->isPaypalClientTokenExpired()) {
-                $psCheckoutCart->paypal_order = '';
-                $psCheckoutCart->paypal_token = $clientTokenProvider->getPayPalClientToken();
-                $psCheckoutCart->paypal_token_expire = (new DateTime())->modify('+3550 seconds')->format('Y-m-d H:i:s');
-                $psCheckoutCartRepository->save($psCheckoutCart);
-            }
+            /** @var CommandBusInterface $commandBus */
+            $commandBus = $this->module->getService('ps_checkout.bus.command');
+            /** @var GetPayPalGetUserIdTokenQueryResult $getPayPalGetUserIdTokenQueryResult */
+            $getPayPalGetUserIdTokenQueryResult = $commandBus->handle(new GetPayPalGetUserIdTokenQuery($this->getCustomerId()));
 
             $this->exitWithResponse([
                 'status' => true,
                 'httpCode' => 200,
                 'body' => [
-                    'token' => $psCheckoutCart->paypal_token,
+                    'token' => $getPayPalGetUserIdTokenQueryResult->getUserIdToken(),
                 ],
-                'exceptionCode' => null,
-                'exceptionMessage' => null,
             ]);
         } catch (Exception $exception) {
-            /* @var \Psr\Log\LoggerInterface logger */
+            /** @var LoggerInterface $logger */
             $logger = $this->module->getService('ps_checkout.logger');
             $logger->error(
                 sprintf(

src/Controller/AbstractFrontController.php

@@ -22,11 +22,15 @@
 
 use Exception;
 use ModuleFrontController;
+use PrestaShop\Module\PrestashopCheckout\Customer\Exception\CustomerException;
+use PrestaShop\Module\PrestashopCheckout\Customer\ValueObject\CustomerId;
+use Ps_checkout;
+use Tools;
 
 class AbstractFrontController extends ModuleFrontController
 {
     /**
-     * @var \Ps_checkout
+     * @var Ps_checkout
      */
     public $module;
 
@@ -68,4 +72,30 @@ protected function exitWithResponse(array $response = [])
 
         exit;
     }
+
+    /**
+     * @return CustomerId|null
+     *
+     * @throws CustomerException
+     */
+    protected function getCustomerId()
+    {
+        return $this->context->customer->isLogged() ? new CustomerId($this->context->customer->id) : null;
+    }
+
+    /**
+     * @return int
+     */
+    protected function getPageSize()
+    {
+        return (int) Tools::getValue('pageSize', 10);
+    }
+
+    /**
+     * @return int
+     */
+    protected function getPageNumber()
+    {
+        return (int) Tools::getValue('pageNumber', 1);
+    }
 }

src/Database/TableManager.php

@@ -80,6 +80,20 @@ public function createTable()
             PRIMARY KEY (`name`, `id_shop`),
             INDEX (`id_shop`)
             ) ENGINE=' . _MYSQL_ENGINE_ . ' DEFAULT CHARSET=UTF8;
+        ') && $this->db->execute('
+            CREATE TABLE IF NOT EXISTS `' . _DB_PREFIX_ . 'pscheckout_customer` (
+            `id_customer` int unsigned NOT NULL,
+            `paypal_customer_id` varchar(50) NOT NULL,
+            PRIMARY KEY (`id_customer`, `paypal_customer_id`)
+            ) ENGINE=' . _MYSQL_ENGINE_ . ' DEFAULT CHARSET=UTF8;
+        ') && $this->db->execute('
+            CREATE TABLE IF NOT EXISTS `' . _DB_PREFIX_ . 'pscheckout_payment_token` (
+            `id` varchar(50) NOT NULL,
+            `paypal_customer_id` varchar(50) NOT NULL,
+            `payment_source` varchar(50) NOT NULL,
+            `data` text NOT NULL,
+            PRIMARY KEY (`id_customer`, `paypal_customer_id`)
+            ) ENGINE=' . _MYSQL_ENGINE_ . ' DEFAULT CHARSET=UTF8;
         ');
 
         $this->checkTable();

src/PayPal/Customer/PayPalCustomerRepository.php

@@ -0,0 +1,88 @@
+<?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 Academic Free License version 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/AFL-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 [email protected] so we can send you a copy immediately.
+ *
+ * @author    PrestaShop SA and Contributors <[email protected]>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License version 3.0
+ */
+
+namespace PrestaShop\Module\PrestashopCheckout\PayPal\Customer;
+
+use Db;
+use DbQuery;
+use Exception;
+use PrestaShop\Module\PrestashopCheckout\Customer\ValueObject\CustomerId;
+use PrestaShop\Module\PrestashopCheckout\PayPal\Customer\ValueObject\PayPalCustomerId;
+
+class PayPalCustomerRepository
+{
+    /**
+     * @var Db
+     */
+    private $db;
+
+    /**
+     * @param Db $db
+     */
+    public function __construct(Db $db)
+    {
+        $this->db = $db;
+    }
+
+    /**
+     * @param CustomerId $customerId
+     *
+     * @return PayPalCustomerId|null
+     *
+     * @throws Exception
+     */
+    public function findPayPalCustomerIdByCustomerId(CustomerId $customerId)
+    {
+        try {
+            $query = new DbQuery();
+            $query->select('`paypal_customer_id`');
+            $query->from('pscheckout_customer');
+            $query->where('`id_customer` = ' . (int) $customerId->getValue());
+            $customerIdPayPal = $this->db->getValue($query);
+
+            return $customerIdPayPal ? new PayPalCustomerId($customerIdPayPal) : null;
+        } catch (Exception $exception) {
+            throw new Exception('Failed to find PayPal Customer ID', 0, $exception);
+        }
+    }
+
+    /**
+     * @param CustomerId $customerId
+     * @param PayPalCustomerId $paypalCustomerId
+     *
+     * @return void
+     *
+     * @throws Exception
+     */
+    public function save(CustomerId $customerId, PayPalCustomerId $paypalCustomerId)
+    {
+        try {
+            $this->db->insert(
+            'pscheckout_customer',
+            [
+                'id_customer' => (int) $customerId->getValue(),
+                'paypal_customer_id' => pSQL($paypalCustomerId->getValue()),
+            ]
+        );
+        } catch (Exception $exception) {
+            throw new Exception('Failed to save PayPal Customer ID', 0, $exception);
+        }
+    }
+}

src/PayPal/Customer/ValueObject/PayPalCustomerId.php

@@ -0,0 +1,74 @@
+<?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 Academic Free License version 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/AFL-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 [email protected] so we can send you a copy immediately.
+ *
+ * @author    PrestaShop SA and Contributors <[email protected]>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License version 3.0
+ */
+
+namespace PrestaShop\Module\PrestashopCheckout\PayPal\Customer\ValueObject;
+
+use InvalidArgumentException;
+
+class PayPalCustomerId
+{
+    /**
+     * @var string
+     */
+    private $customerId;
+
+    /**
+     * @param string $customerId
+     *
+     * @throws InvalidArgumentException
+     */
+    public function __construct($customerId)
+    {
+        $this->assertIsValid($customerId);
+        $this->customerId = $customerId;
+    }
+
+    /**
+     * @return string
+     */
+    public function getValue()
+    {
+        return $this->customerId;
+    }
+
+    /**
+     * @param string $customerId
+     *
+     * @return void
+     *
+     * @throws InvalidArgumentException
+     */
+    private function assertIsValid($customerId)
+    {
+        if (!is_string($customerId)) {
+            throw new InvalidArgumentException('PayPal Customer ID must be a string.');
+        }
+
+        $length = strlen($customerId);
+
+        if ($length < 1 || $length > 22) {
+            throw new InvalidArgumentException('PayPal Customer ID must be between 1 and 22 characters long.');
+        }
+
+        if (preg_match('/^[0-9a-zA-Z_-]+$/', $customerId) !== 1) {
+            throw new InvalidArgumentException('PayPal Customer ID must be alphanumeric.');
+        }
+    }
+}

src/PayPal/OAuth/OAuthService.php

@@ -0,0 +1,66 @@
+<?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 Academic Free License version 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/AFL-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 [email protected] so we can send you a copy immediately.
+ *
+ * @author    PrestaShop SA and Contributors <[email protected]>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License version 3.0
+ */
+
+namespace PrestaShop\Module\PrestashopCheckout\PayPal\OAuth;
+
+use Exception;
+use GuzzleHttp\Psr7\Request;
+use PrestaShop\Module\PrestashopCheckout\PayPal\Customer\ValueObject\PayPalCustomerId;
+
+class OAuthService
+{
+    private $httpClient;
+
+    public function __construct($httpClient)
+    {
+        $this->httpClient = $httpClient;
+    }
+
+    /**
+     * @param PayPalCustomerId|null $customerId
+     *
+     * @return string
+     *
+     * @throws Exception
+     */
+    public function getUserIdToken(PayPalCustomerId $customerId = null)
+    {
+        try {
+            $body = 'grant_type=client_credentials&response_type=id_token';
+
+            if ($customerId) {
+                $body .= '&target_customer_id=' . $customerId->getValue();
+            }
+
+            $request = new Request('POST', '', [], $body);
+            $response = $this->httpClient->sendRequest($request);
+
+            $data = json_decode($response->getBody()->getContents(), true);
+
+            if (empty($data['id_token'])) {
+                throw new Exception('Failed to get PayPal User ID token from response.');
+            }
+
+            return $data['id_token'];
+        } catch (Exception $exception) {
+            throw new Exception('Failed to get PayPal User ID token.', 0, $exception);
+        }
+    }
+}