Viewing file:  CurlMollieHttpAdapter.php (6.79 KB) -rw-r--r--
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<?php
namespace Mollie\Api\HttpAdapter;
use Composer\CaBundle\CaBundle;
use Mollie\Api\Exceptions\ApiException;
use Mollie\Api\Exceptions\CurlConnectTimeoutException;
use Mollie\Api\MollieApiClient;
final class CurlMollieHttpAdapter implements MollieHttpAdapterInterface
{
/**
* Default response timeout (in seconds).
*/
public const DEFAULT_TIMEOUT = 10;
/**
* Default connect timeout (in seconds).
*/
public const DEFAULT_CONNECT_TIMEOUT = 2;
/**
* HTTP status code for an empty ok response.
*/
public const HTTP_NO_CONTENT = 204;
/**
* The maximum number of retries
*/
public const MAX_RETRIES = 5;
/**
* The amount of milliseconds the delay is being increased with on each retry.
*/
public const DELAY_INCREASE_MS = 1000;
/**
* @param string $httpMethod
* @param string $url
* @param array $headers
* @param string $httpBody
* @return \stdClass|void|null
* @throws \Mollie\Api\Exceptions\ApiException
* @throws \Mollie\Api\Exceptions\CurlConnectTimeoutException
*/
public function send($httpMethod, $url, $headers, $httpBody)
{
for ($i = 0; $i <= self::MAX_RETRIES; $i++) {
usleep($i * self::DELAY_INCREASE_MS);
try {
return $this->attemptRequest($httpMethod, $url, $headers, $httpBody);
} catch (CurlConnectTimeoutException $e) {
// Nothing
}
}
throw new CurlConnectTimeoutException(
"Unable to connect to Mollie. Maximum number of retries (". self::MAX_RETRIES .") reached."
);
}
/**
* @param string $httpMethod
* @param string $url
* @param array $headers
* @param string $httpBody
* @return \stdClass|void|null
* @throws \Mollie\Api\Exceptions\ApiException
*/
protected function attemptRequest($httpMethod, $url, $headers, $httpBody)
{
$curl = curl_init($url);
$headers["Content-Type"] = "application/json";
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $this->parseHeaders($headers));
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, self::DEFAULT_CONNECT_TIMEOUT);
curl_setopt($curl, CURLOPT_TIMEOUT, self::DEFAULT_TIMEOUT);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($curl, CURLOPT_CAINFO, CaBundle::getBundledCaBundlePath());
switch ($httpMethod) {
case MollieApiClient::HTTP_POST:
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $httpBody);
break;
case MollieApiClient::HTTP_GET:
break;
case MollieApiClient::HTTP_PATCH:
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'PATCH');
curl_setopt($curl, CURLOPT_POSTFIELDS, $httpBody);
break;
case MollieApiClient::HTTP_DELETE:
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'DELETE');
curl_setopt($curl, CURLOPT_POSTFIELDS, $httpBody);
break;
default:
throw new \InvalidArgumentException("Invalid http method: ". $httpMethod);
}
$startTime = microtime(true);
$response = curl_exec($curl);
$endTime = microtime(true);
if ($response === false) {
$executionTime = $endTime - $startTime;
$curlErrorNumber = curl_errno($curl);
$curlErrorMessage = "Curl error: " . curl_error($curl);
if ($this->isConnectTimeoutError($curlErrorNumber, $executionTime)) {
throw new CurlConnectTimeoutException("Unable to connect to Mollie. " . $curlErrorMessage);
}
throw new ApiException($curlErrorMessage);
}
$statusCode = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
curl_close($curl);
return $this->parseResponseBody($response, $statusCode, $httpBody);
}
/**
* The version number for the underlying http client, if available.
* @example Guzzle/6.3
*
* @return string|null
*/
public function versionString()
{
return 'Curl/*';
}
/**
* Whether this http adapter provides a debugging mode. If debugging mode is enabled, the
* request will be included in the ApiException.
*
* @return false
*/
public function supportsDebugging()
{
return false;
}
/**
* @param int $curlErrorNumber
* @param string|float $executionTime
* @return bool
*/
protected function isConnectTimeoutError($curlErrorNumber, $executionTime)
{
$connectErrors = [
\CURLE_COULDNT_RESOLVE_HOST => true,
\CURLE_COULDNT_CONNECT => true,
\CURLE_SSL_CONNECT_ERROR => true,
\CURLE_GOT_NOTHING => true,
];
if (isset($connectErrors[$curlErrorNumber])) {
return true;
};
if ($curlErrorNumber === \CURLE_OPERATION_TIMEOUTED) {
if ($executionTime > self::DEFAULT_TIMEOUT) {
return false;
}
return true;
}
return false;
}
/**
* @param string $response
* @param int $statusCode
* @param string $httpBody
* @return \stdClass|null
* @throws \Mollie\Api\Exceptions\ApiException
*/
protected function parseResponseBody($response, $statusCode, $httpBody)
{
if (empty($response)) {
if ($statusCode === self::HTTP_NO_CONTENT) {
return null;
}
throw new ApiException("No response body found.");
}
$body = @json_decode($response);
// GUARDS
if (json_last_error() !== JSON_ERROR_NONE) {
throw new ApiException("Unable to decode Mollie response: '{$response}'.");
}
if (isset($body->error)) {
throw new ApiException($body->error->message);
}
if ($statusCode >= 400) {
$message = "Error executing API call ({$body->status}: {$body->title}): {$body->detail}";
$field = null;
if (! empty($body->field)) {
$field = $body->field;
}
if (isset($body->_links, $body->_links->documentation)) {
$message .= ". Documentation: {$body->_links->documentation->href}";
}
if ($httpBody) {
$message .= ". Request body: {$httpBody}";
}
throw new ApiException($message, $statusCode, $field);
}
return $body;
}
protected function parseHeaders($headers)
{
$result = [];
foreach ($headers as $key => $value) {
$result[] = $key .': ' . $value;
}
return $result;
}
}
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