process($_GET, file_get_contents('php://input'));
class service
{
/**
* @var string Auth login
*/
private $login;
/**
* @var string Auth pwd
*/
private $secret;
/**
* @var string Base Url for API 2.0 Production
*/
private $baseUrl;
/**
* @var string Auth Token
*/
private $authToken;
/**
* @var array Data From Request
*/
private $requestData;
public function __construct($login, $secret, $baseUrl = 'https://api.cdek.ru/v2')
{
$this->login = $login;
$this->secret = $secret;
$this->baseUrl = $baseUrl;
}
public function process($requestData, $body)
{
$this->requestData = array_merge($requestData, json_decode($body, true) ?: array());
if (!isset($this->requestData['action'])) {
$this->sendValidationError('Action is required');
}
$this->getAuthToken();
switch ($this->requestData['action']) {
case 'offices':
$this->sendResponse($this->getOffices());
case 'calculate':
$this->sendResponse($this->calculate());
default:
$this->sendValidationError('Unknown action');
}
}
private function sendValidationError($message)
{
$this->http_response_code(400);
header('Content-Type: application/json');
echo json_encode(array('message' => $message));
exit();
}
private function getAuthToken()
{
$result = json_decode($this->httpRequest('oauth/token', array(
'grant_type' => 'client_credentials',
'client_id' => $this->login,
'client_secret' => $this->secret,
), true), true);
if (!isset($result['access_token'])) {
throw new RuntimeException('Server not authorized to CDEK API');
}
$this->authToken = $result['access_token'];
}
private function httpRequest($method, $data, $useFormData = false, $useJson = false)
{
$ch = curl_init("$this->baseUrl/$method");
$headers = array (
'Accept: application/json',
);
if ($this->authToken) {
$headers[] = "Authorization: Bearer $this->authToken";
}
if ($useFormData) {
curl_setopt_array($ch, array(
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $data,
));
} elseif ($useJson) {
$headers[] = 'Content-Type: application/json';
curl_setopt_array($ch, array(
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => json_encode($data),
));
} else {
curl_setopt($ch, CURLOPT_URL, "$this->baseUrl/$method?" . http_build_query($data));
}
curl_setopt_array($ch, array(
CURLOPT_USERAGENT => 'widget/2.0',
CURLOPT_HTTPHEADER => $headers,
CURLOPT_RETURNTRANSFER => true,
));
$result = curl_exec($ch);
if ($result === false) {
throw new RuntimeException(curl_error($ch), curl_errno($ch));
}
return $result;
}
private function sendResponse($data)
{
$this->http_response_code(200);
header('Content-Type: application/json');
echo $data;
exit();
}
protected function getOffices()
{
return $this->httpRequest('deliverypoints', $this->requestData);
}
protected function calculate()
{
return $this->httpRequest('calculator/tarifflist', $this->requestData, false, true);
}
private function http_response_code($code)
{
switch ($code) {
case 100: $text = 'Continue'; break;
case 101: $text = 'Switching Protocols'; break;
case 200: $text = 'OK'; break;
case 201: $text = 'Created'; break;
case 202: $text = 'Accepted'; break;
case 203: $text = 'Non-Authoritative Information'; break;
case 204: $text = 'No Content'; break;
case 205: $text = 'Reset Content'; break;
case 206: $text = 'Partial Content'; break;
case 300: $text = 'Multiple Choices'; break;
case 301: $text = 'Moved Permanently'; break;
case 302: $text = 'Moved Temporarily'; break;
case 303: $text = 'See Other'; break;
case 304: $text = 'Not Modified'; break;
case 305: $text = 'Use Proxy'; break;
case 400: $text = 'Bad Request'; break;
case 401: $text = 'Unauthorized'; break;
case 402: $text = 'Payment Required'; break;
case 403: $text = 'Forbidden'; break;
case 404: $text = 'Not Found'; break;
case 405: $text = 'Method Not Allowed'; break;
case 406: $text = 'Not Acceptable'; break;
case 407: $text = 'Proxy Authentication Required'; break;
case 408: $text = 'Request Time-out'; break;
case 409: $text = 'Conflict'; break;
case 410: $text = 'Gone'; break;
case 411: $text = 'Length Required'; break;
case 412: $text = 'Precondition Failed'; break;
case 413: $text = 'Request Entity Too Large'; break;
case 414: $text = 'Request-URI Too Large'; break;
case 415: $text = 'Unsupported Media Type'; break;
case 500: $text = 'Internal Server Error'; break;
case 501: $text = 'Not Implemented'; break;
case 502: $text = 'Bad Gateway'; break;
case 503: $text = 'Service Unavailable'; break;
case 504: $text = 'Gateway Time-out'; break;
case 505: $text = 'HTTP Version not supported'; break;
default:
exit('Unknown http status code "' . htmlentities($code) . '"');
break;
}
$protocol = (isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');
header($protocol . ' ' . $code . ' ' . $text);
$GLOBALS['http_response_code'] = $code;
}
}