/**
* Performs a POST request.
*
* @param string $endpoint
* Endpoint to make request to.
*
* @param array $headers
* An array of parameters to send in the request.
*
* @param array $params
* An array of parameters to send in the request.
*
* @param boolean $post
* true to make a POST request, else a GET request will be made.
*
* @return array
* The JSON data returned from the API.
*
* @throws CasperException
* An exception is thrown if an error occurs.
*/
public function request($endpoint, $headers = array(), $params = array(), $post = false)
{
$ch = curl_init();
if ($headers == null) {
$headers = array();
}
if ($params == null) {
$params = array();
}
$headers = array_merge(self::$CURL_HEADERS, $headers);
$headers[] = "X-Casper-API-Key: " . $this->apiKey;
curl_setopt_array($ch, self::$CURL_OPTIONS);
curl_setopt($ch, CURLOPT_URL, self::URL . $endpoint);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->verifyPeer);
if ($this->proxy != null) {
curl_setopt($ch, CURLOPT_PROXY, $this->proxy);
}
$jwt_params = array("iat" => time());
$jwt = JWT::encode(array_merge($jwt_params, $params), $this->apiSecret, "HS256");
if ($post) {
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array("jwt" => $jwt)));
}
$response = curl_exec($ch);
if (curl_errno($ch) == 60) {
curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . "/ca_bundle.crt");
$response = curl_exec($ch);
}
if ($response === FALSE) {
$error = curl_error($ch);
curl_close($ch);
throw new CasperException($error);
}
$json = json_decode($response, true);
if ($json == null) {
curl_close($ch);
throw new CasperException(sprintf("[%s] Failed to decode response!\nResponse: %s", $endpoint, $response));
}
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ($code != 200) {
curl_close($ch);
$json_code = $json["code"];
$json_message = $json["message"];
if (isset($json_code) && isset($json_message)) {
throw new CasperException(sprintf("Casper API Response: [%s] [%s] %s", $endpoint, $json_code, $json_message));
} else {
throw new CasperException(sprintf("Casper API Response: [%s] [%s] Unknown Error\nResponse: %s", $endpoint, $code, $response));
}
}
curl_close($ch);
return $json;
}
/**
* Encode a PHP object into a JSON string.
*
* @param object|array $input A PHP object or array
*
* @return string JSON representation of the PHP object or array
* @throws DomainException Provided object could not be encoded to valid JSON
*/
public static function jsonEncode($input)
{
$json = json_encode($input);
if (function_exists('json_last_error') && ($errno = json_last_error())) {
JWT::_handleJsonError($errno);
} else {
if ($json === 'null' && $input !== null) {
throw new DomainException('Null result with non-null input');
}
}
return $json;
}