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<?php |
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/** |
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* CakePHPify : CakePHP Plugin for Shopify API Authentication |
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* Copyright (c) Multidimension.al (http://multidimension.al) |
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* Github : https://github.com/multidimension-al/cakephpify |
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* |
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* Licensed under The MIT License |
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* For full copyright and license information, please see the LICENSE file |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright (c) Multidimension.al (http://multidimension.al) |
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* @link https://github.com/multidimension-al/cakephpify CakePHPify Github |
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* @license http://www.opensource.org/licenses/mit-license.php MIT License |
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*/ |
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namespace Multidimensional\Cakephpify\Controller\Component; |
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use Cake\Controller\Component; |
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use Cake\Core\Configure; |
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use Cake\Event\Event; |
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use Cake\Network\Exception\NotImplementedException; |
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use Cake\Network\Http\Client; |
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use Cake\Routing\Router; |
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class ShopifyAPIComponent extends Component |
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{ |
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public $apiKey; |
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private $shopDomain; |
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private $token; |
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private $sharedSecret; |
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private $privateApp; |
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private $privateAppPassword; |
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private $nonce; |
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public $controller = null; |
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/** |
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* @param array $config |
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* @return void |
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*/ |
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public function initialize(array $config = []) |
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{ |
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parent::initialize($config); |
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$this->apiKey = isset($config['apiKey']) ? $config['apiKey'] : ''; |
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if (!empty($this->apiKey)) { |
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$this->sharedSecret = Configure::read('Multidimensional/Cakephpify.' . $this->apiKey . '.sharedSecret'); |
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$this->scope = Configure::read('Multidimensional/Cakephpify.' . $this->apiKey . '.scope'); |
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$this->privateApp = Configure::read('Multidimensional/Cakephpify.' . $this->apiKey . '.privateApp'); |
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$this->privateAppPassword = Configure::read('Multidimensional/Cakephpify.' . $this->apiKey . '.privateAppPassword'); |
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} else { |
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throw new NotImplementedException(__('Shopify API key not found')); |
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} |
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if (!$this->sharedSecret) { |
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throw new NotImplementedException(__('Shopify Shared Secret not found')); |
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} |
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} |
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/** |
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* @param Event $event |
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* @return void |
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*/ |
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public function startup(Event $event) |
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{ |
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$this->setController($event->subject()); |
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} |
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/** |
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* @param controller $controller |
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* @return void |
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*/ |
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public function setController($controller) |
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{ |
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$this->controller = $controller; |
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} |
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/** |
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* @param string $shopDomain |
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* @return string|null |
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*/ |
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public function setShopDomain($shopDomain) |
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{ |
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return $this->shopDomain = $shopDomain; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getShopDomain() |
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{ |
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return $this->shopDomain; |
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} |
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/** |
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* @param string $shopDomain |
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* @return bool |
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*/ |
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public function validDomain($shopDomain) |
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{ |
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return preg_match('/^([A-Za-z0-9]{1}(?:[A-Za-z0-9\-]{0,61}[A-Za-z0-9]{1})?)\.myshopify\.com$/i', $shopDomain) !== 0; |
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} |
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/** |
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* @param string $token |
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* @return string|null |
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*/ |
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public function setAccessToken($token) |
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{ |
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return $this->token = $token; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getAccessToken() |
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{ |
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return $this->token; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function callsMade() |
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{ |
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return $this->shopApiCallLimitParam(0); |
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} |
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/** |
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* @return int|null |
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*/ |
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public function callLimit() |
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{ |
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return $this->shopApiCallLimitParam(1); |
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} |
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/** |
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* @param Response $responseHeaders |
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* @return int|null |
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*/ |
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public function callsLeft($responseHeaders) |
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{ |
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return $this->callLimit() - $this->callsMade(); |
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} |
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/** |
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* @param string $method |
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* @param string $path |
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* @param array $params |
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* @return array|null |
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*/ |
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public function call($method, $path, $params = []) |
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{ |
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if (!$this->_isReady()) { |
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return false; |
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} |
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if (!in_array($method, ['POST', 'PUT', 'GET', 'DELETE'])) { |
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return false; |
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} |
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$http = new Client( |
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[ |
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'host' => $this->shopDomain, |
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'scheme' => 'https', |
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'headers' => (($this->privateApp != 'true') ? (['X-Shopify-Access-Token' => $this->token]) : []), |
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'auth' => (($this->privateApp != 'true') ? [] : (['username' => $this->apiKey, 'password' => $this->privateAppPassword])) |
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] |
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); |
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$this->response = $http->{strtolower($method)}( |
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$path, |
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((in_array($method, ['POST', 'PUT'])) ? json_encode($params) : $params), |
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((in_array($method, ['POST', 'PUT'])) ? ['type' => 'json'] : []) |
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); |
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$this->response = $this->response->json; |
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return (is_array($this->response) && (count($this->response) > 0)) ? array_shift($this->response) : $this->response; |
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} |
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/** |
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* @param int $index |
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* @return int |
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*/ |
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private function shopApiCallLimitParam($index) |
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{ |
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$params = explode("/", $this->response->getHeaderLine('http_x_shopify_shop_api_call_limit')); |
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return (int)$params[$index]; |
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} |
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/** |
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* @param string $shopDomain |
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* @param string $redirectUrl |
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* @return string |
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*/ |
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public function getAuthorizeUrl($shopDomain, $redirectUrl) |
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{ |
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$url = 'https://' . $shopDomain . '/admin/oauth/authorize?client_id=' . $this->apiKey; |
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$url .= '&scope=' . urlencode($this->scope); |
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$url .= '&redirect_uri=' . urlencode($redirectUrl); |
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$url .= '&state=' . $this->getNonce($shopDomain); |
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return $url; |
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} |
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/** |
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* @param string $shopDomain |
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* @param string $code |
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* @return string|false |
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*/ |
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public function requestAccessToken($shopDomain, $code) |
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{ |
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$this->shopDomain = $shopDomain; |
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$http = new Client( |
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[ |
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'host' => $shopDomain, |
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'scheme' => 'https' |
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] |
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); |
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$response = $http->post( |
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'/admin/oauth/access_token', |
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'client_id=' . $this->apiKey . |
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'&client_secret=' . $this->sharedSecret . |
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'&code=' . $code |
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); |
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$response = $response->json; |
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; |
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if (isset($response['access_token'])) { |
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$this->token = $response['access_token']; |
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return $this->token; |
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} else { |
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return false; |
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} |
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} |
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/** |
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* @param string $shopDomain |
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* @return string|null |
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*/ |
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public function setNonce($shopDomain) |
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{ |
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return $this->nonce = md5(strtolower($shopDomain)); |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getNonce() |
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{ |
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return $this->nonce; |
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} |
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/** |
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* @return json |
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*/ |
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public function getShopData() |
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{ |
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return $this->call('GET', '/admin/shop.json'); |
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} |
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/** |
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* @param array $query |
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* @return bool |
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*/ |
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public function validateHMAC($query) |
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{ |
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if (!is_array($query) || empty($query['hmac']) || !is_string($query['hmac']) || (isset($query['state']) && $query['state'] != $this->getNonce($query['shop']))) { |
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return false; |
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} |
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$dataString = []; |
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foreach ($query as $key => $value) { |
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$key = $this->_urlEncode(str_replace('=', '%3D', $key)); |
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$value = $this->_urlEncode($value); |
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if ($key != 'hmac') { |
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$dataString[] = $key . '=' . $value; |
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} |
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} |
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sort($dataString); |
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$string = implode("&", $dataString); |
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return $query['hmac'] === hash_hmac('sha256', $string, $this->sharedSecret); |
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} |
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/** |
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* @param string $url |
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* @return string |
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*/ |
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private function _urlEncode($url) |
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{ |
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$url = str_replace('&', '%26', $url); |
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$url = str_replace('%', '%25', $url); |
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return $url; |
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} |
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/** |
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* @return bool |
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*/ |
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private function _isReady() |
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{ |
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return strlen($this->shopDomain) > 0 && strlen($this->token) > 0; |
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} |
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} |
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