public static function request($url, $method = 'POST', $params = array(), $authentication = array())
{
$app_id = isset($authentication['app_id']) ? $authentication['app_id'] : self::$app_id;
$app_key = isset($authentication['api_key']) ? $authentication['api_key'] : self::$api_key;
$app_secret = isset($authentication['api_secret']) ? $authentication['api_secret'] : self::$api_secret;
$environment = isset($authentication['environment']) ? $authentication['environment'] : self::$environment;
$user_agent = isset($authentication['user_agent']) ? $authentication['user_agent'] : (isset(self::$user_agent) ? self::$user_agent : self::USER_AGENT_ORIGIN . ' v' . self::VERSION);
# Check if credentials was passed
if (empty($app_id) || empty($app_key) || empty($app_secret)) {
\CoinGate\Exception::throwException(400, array('reason' => 'CredentialsMissing'));
}
# Check if right environment passed
$environments = array('live', 'sandbox');
if (!in_array($environment, $environments)) {
$availableEnvironments = join(', ', $environments);
\CoinGate\Exception::throwException(400, array('reason' => 'BadEnvironment', 'message' => "Environment does not exist. Available environments: {$availableEnvironments}"));
}
$url = ($environment === 'sandbox' ? 'https://sandbox.coingate.com/api/v1' : 'https://coingate.com/api/v1') . $url;
$nonce = (int) (microtime(true) * 1000000.0);
$message = $nonce . $app_id . $app_key;
$signature = hash_hmac('sha256', $message, $app_secret);
$headers = array();
$headers[] = 'Access-Key: ' . $app_key;
$headers[] = 'Access-Nonce: ' . $nonce;
$headers[] = 'Access-Signature: ' . $signature;
$curl = curl_init();
$curl_options = array(CURLOPT_RETURNTRANSFER => 1, CURLOPT_URL => $url);
if ($method == 'POST') {
$headers[] = 'Content-Type: application/x-www-form-urlencoded';
array_merge($curl_options, array(CURLOPT_POST => 1));
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($params));
}
curl_setopt_array($curl, $curl_options);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_USERAGENT, $user_agent);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
$response = json_decode(curl_exec($curl), TRUE);
$http_status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ($http_status === 200) {
return $response;
} else {
\CoinGate\Exception::throwException($http_status, $response);
}
}
