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<?php /** * This class has the definition of the API used for the communication. * @author Ueli Kramer <ueli.kramer@comvation.com> * @copyright 2014 Payrexx AG * @since v1.0 / namespace Payrexx; use Payrexx\Models\Request\PaymentMethod; /* * This object handles the communication with the API server * @package Payrexx / class Communicator { const VERSIONS = [1.0, 1.1, 1.2]; const API_URL_FORMAT = 'https://api.%s/%s/%s/%s/%s'; const API_URL_BASE_DOMAIN = 'payrexx.com'; const DEFAULT_COMMUNICATION_HANDLER = '\Payrexx\CommunicationAdapter\CurlCommunication'; /* * @var array A set of methods which can be used to communicate with the API server. / protected static $methods = array( 'create' => 'POST', 'charge' => 'POST', 'refund' => 'POST', 'capture' => 'POST', 'receipt' => 'POST', 'preAuthorize' => 'POST', 'cancel' => 'DELETE', 'delete' => 'DELETE', 'update' => 'PUT', 'getAll' => 'GET', 'getOne' => 'GET', ); /* * @var string The Payrexx instance name. / protected $instance; /* * @var string The API secret which is used to generate a signature. / protected $apiSecret; /* * @var string The base domain of the API URL. / protected $apiBaseDomain; /* * @var string The communication handler which handles the HTTP requests. Default cURL Communication handler / protected $communicationHandler; /* * @var string The version to use / protected $version; /* * @var array The HTTP Headers / public $httpHeaders; /* * Generates a communicator object with a communication handler like cURL. * * @param string $instance The instance name, needed for the generation of the API url. * @param string $apiSecret The API secret which is the key to hash all the parameters passed to the API server. * @param string $communicationHandler The preferred communication handler. Default is cURL. * @param string $apiBaseDomain The base domain of the API URL. * @param float $version The version of the API to query. * * @throws PayrexxException / public function __construct($instance, $apiSecret, $communicationHandler, $apiBaseDomain, $version = null) { $this->instance = $instance; $this->apiSecret = $apiSecret; $this->apiBaseDomain = $apiBaseDomain; if ($version && in_array($version, self::VERSIONS)) { $this->version = $version; } else { $this->version = current(self::VERSIONS); } if (!class_exists($communicationHandler)) { throw new PayrexxException('Communication handler class ' . $communicationHandler . ' not found'); } $this->communicationHandler = new $communicationHandler(); } /* * Gets the version of the API used. * * @return string The version of the API / public function getVersion() { return $this->version; } /* * Perform a simple API request by method name and Request model. * * @param string $method The name of the API method to call * @param \Payrexx\Models\Base $model The model which has the same functionality like a filter. * * @return \Payrexx\Models\Base[]\|\Payrexx\Models\Base An array of models or just one model which * is the result of the API call * @throws \Payrexx\PayrexxException An error occurred during the Payrexx Request / public function performApiRequest($method, \Payrexx\Models\Base $model) { $params = $model->toArray($method); $paramsWithoutFiles = $params; unset($paramsWithoutFiles['headerImage'], $paramsWithoutFiles['backgroundImage'], $paramsWithoutFiles['headerBackgroundImage'], $paramsWithoutFiles['emailHeaderImage'], $paramsWithoutFiles['VPOSBackgroundImage']); $params['ApiSignature'] = base64_encode(hash_hmac('sha256', http_build_query($paramsWithoutFiles, '', '&'), $this->apiSecret, true)); $params['instance'] = $this->instance; $id = isset($params['id']) ? $params['id'] : 0; if ($id === 0 && isset($params['uuid'])) { $id = $params['uuid']; } $act = in_array($method, ['refund', 'capture', 'receipt', 'preAuthorize']) ? $method : ''; $apiUrl = sprintf(self::API_URL_FORMAT, $this->apiBaseDomain, 'v' . $this->version, $params['model'], $id, $act); $httpMethod = $this->getHttpMethod($method) === 'PUT' && $params['model'] === 'Design' ? 'POST' : $this->getHttpMethod($method); $response = $this->communicationHandler->requestApi( $apiUrl, $params, $httpMethod, $this->httpHeaders ); $convertedResponse = array(); if (!isset($response['body']['data']) \|\| !is_array($response['body']['data'])) { if (!isset($response['body']['message'])) { throw new \Payrexx\PayrexxException('Payrexx PHP: Configuration is wrong! Check instance name and API secret', $response['info']['http_code']); } $exception = new \Payrexx\PayrexxException($response['body']['message'], $response['info']['http_code']); if (!empty($response['body']['reason'])) { $exception->setReason($response['body']['reason']); } throw $exception; } $data = $response['body']['data']; if ($model instanceof PaymentMethod && $method === 'getOne') { $data = [$data]; } foreach ($data as $object) { $responseModel = $model->getResponseModel(); $convertedResponse[] = $responseModel->fromArray($object); } if ($method !== 'getAll') { $convertedResponse = current($convertedResponse); } return $convertedResponse; } /* * Gets the HTTP method to use for a specific API method * * @param string $method The API method to check for * * @return string The HTTP method to use for the queried API method * @throws \Payrexx\PayrexxException The method is not implemented yet. / protected function getHttpMethod($method) { if (!$this->methodAvailable($method)) { throw new \Payrexx\PayrexxException('Method ' . $method . ' not implemented'); } return self::$methods[$method]; } /* * Checks whether a method is available and activated in methods array. * * @param string $method The method name to check * * @return bool True if the method exists, False if not */ public function methodAvailable($method) { return array_key_exists($method, self::$methods); } }

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