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modules/ps_accounts/classes/Service/ShopTokenService.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 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 license@prestashop.com so we can send you a copy immediately.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License version 3.0
+ */
+
+namespace PrestaShop\Module\PsAccounts\Service;
+
+use Lcobucci\JWT\Parser;
+use PrestaShop\Module\PsAccounts\Api\Client\FirebaseClient;
+use PrestaShop\Module\PsAccounts\Repository\ConfigurationRepository;
+
+class ShopTokenService
+{
+    /**
+     * @var FirebaseClient
+     */
+    private $firebaseClient;
+
+    /**
+     * @var ConfigurationRepository
+     */
+    private $configuration;
+
+    /**
+     * ShopTokenService constructor.
+     *
+     * @param FirebaseClient $firebaseClient
+     * @param ConfigurationRepository $configuration
+     */
+    public function __construct(
+        FirebaseClient $firebaseClient,
+        ConfigurationRepository $configuration
+    ) {
+        $this->firebaseClient = $firebaseClient;
+        $this->configuration = $configuration;
+    }
+
+    /**
+     * @see https://firebase.google.com/docs/reference/rest/auth Firebase documentation
+     *
+     * @param string $customToken
+     *
+     * @return bool
+     */
+    public function exchangeCustomTokenForIdAndRefreshToken($customToken)
+    {
+        $response = $this->firebaseClient->signInWithCustomToken($customToken);
+
+        if ($response && true === $response['status']) {
+            $uid = (new Parser())->parse((string) $customToken)->getClaim('uid');
+
+            $this->configuration->updateShopUuid($uid);
+
+            $this->configuration->updateFirebaseIdAndRefreshTokens(
+                $response['body']['idToken'],
+                $response['body']['refreshToken']
+            );
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @return bool
+     *
+     * @throws \Exception
+     */
+    public function refreshToken()
+    {
+        $response = $this->firebaseClient->exchangeRefreshTokenForIdToken(
+            $this->configuration->getFirebaseRefreshToken()
+        );
+
+        if ($response && true === $response['status']) {
+            $this->configuration->updateFirebaseIdAndRefreshTokens(
+                $response['body']['id_token'],
+                $response['body']['refresh_token']
+            );
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the user firebase token.
+     *
+     * @return string
+     *
+     * @throws \Exception
+     */
+    public function getOrRefreshToken()
+    {
+        if (
+            $this->configuration->hasFirebaseRefreshToken()
+            && $this->isTokenExpired()
+        ) {
+            $this->refreshToken();
+        }
+
+        return $this->configuration->getFirebaseIdToken();
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getRefreshToken()
+    {
+        return $this->configuration->getFirebaseRefreshToken() ?: null;
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getToken()
+    {
+        return $this->configuration->getFirebaseIdToken() ?: null;
+    }
+
+    /**
+     * @return bool
+     *
+     * @throws \Exception
+     */
+    public function isTokenExpired()
+    {
+        // iat, exp
+        $token = (new Parser())->parse($this->configuration->getFirebaseIdToken());
+
+        return $token->isExpired(new \DateTime());
+    }
+}