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<?php |
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namespace Stripe; |
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/** |
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* Class ApiRequestor |
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* |
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* @package Stripe |
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*/ |
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class ApiRequestor |
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{ |
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/** |
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* @var string|null |
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*/ |
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private $_apiKey; |
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/** |
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* @var string |
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*/ |
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private $_apiBase; |
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/** |
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* @var HttpClient\ClientInterface |
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*/ |
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private static $_httpClient; |
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/** |
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* @var RequestTelemetry |
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*/ |
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private static $requestTelemetry; |
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/** |
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* ApiRequestor constructor. |
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* |
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* @param string|null $apiKey |
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* @param string|null $apiBase |
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*/ |
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public function __construct($apiKey = null, $apiBase = null) |
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{ |
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$this->_apiKey = $apiKey; |
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if (!$apiBase) { |
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$apiBase = Stripe::$apiBase; |
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} |
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$this->_apiBase = $apiBase; |
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} |
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/** |
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* Creates a telemetry json blob for use in 'X-Stripe-Client-Telemetry' headers |
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* @static |
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* |
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* @param RequestTelemetry $requestTelemetry |
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* @return string |
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*/ |
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private static function _telemetryJson($requestTelemetry) |
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{ |
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$payload = array( |
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'last_request_metrics' => array( |
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'request_id' => $requestTelemetry->requestId, |
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'request_duration_ms' => $requestTelemetry->requestDuration, |
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)); |
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$result = json_encode($payload); |
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if ($result != false) { |
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return $result; |
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} else { |
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Stripe::getLogger()->error("Serializing telemetry payload failed!"); |
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return "{}"; |
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} |
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} |
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/** |
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* @static |
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* |
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* @param ApiResource|bool|array|mixed $d |
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* |
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* @return ApiResource|array|string|mixed |
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*/ |
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private static function _encodeObjects($d) |
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{ |
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if ($d instanceof ApiResource) { |
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return Util\Util::utf8($d->id); |
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} elseif ($d === true) { |
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return 'true'; |
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} elseif ($d === false) { |
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return 'false'; |
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} elseif (is_array($d)) { |
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$res = []; |
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foreach ($d as $k => $v) { |
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$res[$k] = self::_encodeObjects($v); |
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} |
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return $res; |
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} else { |
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return Util\Util::utf8($d); |
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} |
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} |
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/** |
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* @param string $method |
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* @param string $url |
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* @param array|null $params |
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* @param array|null $headers |
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* |
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* @return array An array whose first element is an API response and second |
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* element is the API key used to make the request. |
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* @throws Error\Api |
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* @throws Error\Authentication |
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* @throws Error\Card |
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* @throws Error\InvalidRequest |
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* @throws Error\OAuth\InvalidClient |
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* @throws Error\OAuth\InvalidGrant |
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* @throws Error\OAuth\InvalidRequest |
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* @throws Error\OAuth\InvalidScope |
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* @throws Error\OAuth\UnsupportedGrantType |
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* @throws Error\OAuth\UnsupportedResponseType |
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* @throws Error\Permission |
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* @throws Error\RateLimit |
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* @throws Error\Idempotency |
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* @throws Error\ApiConnection |
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*/ |
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public function request($method, $url, $params = null, $headers = null) |
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{ |
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$params = $params ?: []; |
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$headers = $headers ?: []; |
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list($rbody, $rcode, $rheaders, $myApiKey) = |
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$this->_requestRaw($method, $url, $params, $headers); |
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$json = $this->_interpretResponse($rbody, $rcode, $rheaders); |
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$resp = new ApiResponse($rbody, $rcode, $rheaders, $json); |
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return [$resp, $myApiKey]; |
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} |
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/** |
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* @param string $rbody A JSON string. |
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* @param int $rcode |
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* @param array $rheaders |
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* @param array $resp |
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* |
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* @throws Error\InvalidRequest if the error is caused by the user. |
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* @throws Error\Authentication if the error is caused by a lack of |
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* permissions. |
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* @throws Error\Permission if the error is caused by insufficient |
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* permissions. |
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* @throws Error\Card if the error is the error code is 402 (payment |
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* required) |
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* @throws Error\InvalidRequest if the error is caused by the user. |
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* @throws Error\Idempotency if the error is caused by an idempotency key. |
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* @throws Error\OAuth\InvalidClient |
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* @throws Error\OAuth\InvalidGrant |
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* @throws Error\OAuth\InvalidRequest |
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* @throws Error\OAuth\InvalidScope |
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* @throws Error\OAuth\UnsupportedGrantType |
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* @throws Error\OAuth\UnsupportedResponseType |
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* @throws Error\Permission if the error is caused by insufficient |
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* permissions. |
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* @throws Error\RateLimit if the error is caused by too many requests |
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* hitting the API. |
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* @throws Error\Api otherwise. |
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*/ |
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public function handleErrorResponse($rbody, $rcode, $rheaders, $resp) |
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{ |
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if (!is_array($resp) || !isset($resp['error'])) { |
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$msg = "Invalid response object from API: $rbody " |
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. "(HTTP response code was $rcode)"; |
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throw new Error\Api($msg, $rcode, $rbody, $resp, $rheaders); |
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} |
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$errorData = $resp['error']; |
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$error = null; |
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if (is_string($errorData)) { |
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$error = self::_specificOAuthError($rbody, $rcode, $rheaders, $resp, $errorData); |
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} |
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if (!$error) { |
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$error = self::_specificAPIError($rbody, $rcode, $rheaders, $resp, $errorData); |
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} |
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throw $error; |
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} |
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/** |
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* @static |
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* |
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* @param string $rbody |
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* @param int $rcode |
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* @param array $rheaders |
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* @param array $resp |
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* @param array $errorData |
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* |
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* @return Error\RateLimit|Error\Idempotency|Error\InvalidRequest|Error\Authentication|Error\Card|Error\Permission|Error\Api |
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*/ |
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private static function _specificAPIError($rbody, $rcode, $rheaders, $resp, $errorData) |
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{ |
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$msg = isset($errorData['message']) ? $errorData['message'] : null; |
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$param = isset($errorData['param']) ? $errorData['param'] : null; |
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$code = isset($errorData['code']) ? $errorData['code'] : null; |
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$type = isset($errorData['type']) ? $errorData['type'] : null; |
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switch ($rcode) { |
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case 400: |
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// 'rate_limit' code is deprecated, but left here for backwards compatibility |
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// for API versions earlier than 2015-09-08 |
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if ($code == 'rate_limit') { |
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return new Error\RateLimit($msg, $param, $rcode, $rbody, $resp, $rheaders); |
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} |
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if ($type == 'idempotency_error') { |
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return new Error\Idempotency($msg, $rcode, $rbody, $resp, $rheaders); |
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} |
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// intentional fall-through |
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case 404: |
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return new Error\InvalidRequest($msg, $param, $rcode, $rbody, $resp, $rheaders); |
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case 401: |
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return new Error\Authentication($msg, $rcode, $rbody, $resp, $rheaders); |
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case 402: |
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return new Error\Card($msg, $param, $code, $rcode, $rbody, $resp, $rheaders); |
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case 403: |
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return new Error\Permission($msg, $rcode, $rbody, $resp, $rheaders); |
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case 429: |
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return new Error\RateLimit($msg, $param, $rcode, $rbody, $resp, $rheaders); |
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default: |
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return new Error\Api($msg, $rcode, $rbody, $resp, $rheaders); |
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} |
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} |
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/** |
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* @static |
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* |
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* @param string|bool $rbody |
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* @param int $rcode |
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* @param array $rheaders |
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* @param array $resp |
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* @param string $errorCode |
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* |
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* @return null|Error\OAuth\InvalidClient|Error\OAuth\InvalidGrant|Error\OAuth\InvalidRequest|Error\OAuth\InvalidScope|Error\OAuth\UnsupportedGrantType|Error\OAuth\UnsupportedResponseType |
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*/ |
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private static function _specificOAuthError($rbody, $rcode, $rheaders, $resp, $errorCode) |
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{ |
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$description = isset($resp['error_description']) ? $resp['error_description'] : $errorCode; |
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switch ($errorCode) { |
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case 'invalid_client': |
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return new Error\OAuth\InvalidClient($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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case 'invalid_grant': |
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return new Error\OAuth\InvalidGrant($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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case 'invalid_request': |
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return new Error\OAuth\InvalidRequest($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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case 'invalid_scope': |
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return new Error\OAuth\InvalidScope($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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case 'unsupported_grant_type': |
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return new Error\OAuth\UnsupportedGrantType($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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case 'unsupported_response_type': |
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return new Error\OAuth\UnsupportedResponseType($errorCode, $description, $rcode, $rbody, $resp, $rheaders); |
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} |
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return null; |
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} |
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/** |
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* @static |
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* |
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* @param null|array $appInfo |
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* |
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* @return null|string |
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*/ |
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private static function _formatAppInfo($appInfo) |
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{ |
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if ($appInfo !== null) { |
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$string = $appInfo['name']; |
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if ($appInfo['version'] !== null) { |
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$string .= '/' . $appInfo['version']; |
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} |
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if ($appInfo['url'] !== null) { |
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$string .= ' (' . $appInfo['url'] . ')'; |
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} |
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return $string; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* @static |
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* |
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* @param string $apiKey |
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* @param null $clientInfo |
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* |
286
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* @return array |
287
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*/ |
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private static function _defaultHeaders($apiKey, $clientInfo = null) |
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{ |
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$uaString = 'Stripe/v1 PhpBindings/' . Stripe::VERSION; |
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$langVersion = phpversion(); |
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$uname = php_uname(); |
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$appInfo = Stripe::getAppInfo(); |
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$ua = [ |
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'bindings_version' => Stripe::VERSION, |
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'lang' => 'php', |
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'lang_version' => $langVersion, |
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'publisher' => 'stripe', |
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'uname' => $uname, |
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]; |
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if ($clientInfo) { |
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$ua = array_merge($clientInfo, $ua); |
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} |
306
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if ($appInfo !== null) { |
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$uaString .= ' ' . self::_formatAppInfo($appInfo); |
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$ua['application'] = $appInfo; |
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} |
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311
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$defaultHeaders = [ |
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'X-Stripe-Client-User-Agent' => json_encode($ua), |
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'User-Agent' => $uaString, |
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'Authorization' => 'Bearer ' . $apiKey, |
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]; |
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return $defaultHeaders; |
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} |
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319
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/** |
320
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* @param string $method |
321
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* @param string $url |
322
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* @param array $params |
323
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* @param array $headers |
324
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* |
325
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* @return array |
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* @throws Error\Api |
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* @throws Error\ApiConnection |
328
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* @throws Error\Authentication |
329
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*/ |
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private function _requestRaw($method, $url, $params, $headers) |
331
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{ |
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$myApiKey = $this->_apiKey; |
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if (!$myApiKey) { |
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$myApiKey = Stripe::$apiKey; |
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} |
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337
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if (!$myApiKey) { |
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$msg = 'No API key provided. (HINT: set your API key using ' |
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. '"Stripe::setApiKey(<API-KEY>)". You can generate API keys from ' |
340
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. 'the Stripe web interface. See https://stripe.com/api for ' |
341
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. 'details, or email [email protected] if you have any questions.'; |
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throw new Error\Authentication($msg); |
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} |
344
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|
345
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// Clients can supply arbitrary additional keys to be included in the |
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// X-Stripe-Client-User-Agent header via the optional getUserAgentInfo() |
347
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// method |
348
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$clientUAInfo = null; |
349
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if (method_exists($this->httpClient(), 'getUserAgentInfo')) { |
350
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$clientUAInfo = $this->httpClient()->getUserAgentInfo(); |
351
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} |
352
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353
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$absUrl = $this->_apiBase.$url; |
354
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$params = self::_encodeObjects($params); |
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$defaultHeaders = $this->_defaultHeaders($myApiKey, $clientUAInfo); |
356
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if (Stripe::$apiVersion) { |
357
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$defaultHeaders['Stripe-Version'] = Stripe::$apiVersion; |
358
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|
|
} |
359
|
|
|
|
360
|
|
|
if (Stripe::$accountId) { |
361
|
|
|
$defaultHeaders['Stripe-Account'] = Stripe::$accountId; |
362
|
|
|
} |
363
|
|
|
|
364
|
|
|
if (Stripe::$enableTelemetry && self::$requestTelemetry != null) { |
365
|
|
|
$defaultHeaders["X-Stripe-Client-Telemetry"] = self::_telemetryJson(self::$requestTelemetry); |
366
|
|
|
} |
367
|
|
|
|
368
|
|
|
$hasFile = false; |
369
|
|
|
$hasCurlFile = class_exists('\CURLFile', false); |
370
|
|
|
foreach ($params as $k => $v) { |
371
|
|
|
if (is_resource($v)) { |
372
|
|
|
$hasFile = true; |
373
|
|
|
$params[$k] = self::_processResourceParam($v, $hasCurlFile); |
374
|
|
|
} elseif ($hasCurlFile && $v instanceof \CURLFile) { |
375
|
|
|
$hasFile = true; |
376
|
|
|
} |
377
|
|
|
} |
378
|
|
|
|
379
|
|
|
if ($hasFile) { |
380
|
|
|
$defaultHeaders['Content-Type'] = 'multipart/form-data'; |
381
|
|
|
} else { |
382
|
|
|
$defaultHeaders['Content-Type'] = 'application/x-www-form-urlencoded'; |
383
|
|
|
} |
384
|
|
|
|
385
|
|
|
$combinedHeaders = array_merge($defaultHeaders, $headers); |
386
|
|
|
$rawHeaders = []; |
387
|
|
|
|
388
|
|
|
foreach ($combinedHeaders as $header => $value) { |
389
|
|
|
$rawHeaders[] = $header . ': ' . $value; |
390
|
|
|
} |
391
|
|
|
|
392
|
|
|
$requestStartMs = Util\Util::currentTimeMillis(); |
393
|
|
|
|
394
|
|
|
list($rbody, $rcode, $rheaders) = $this->httpClient()->request( |
395
|
|
|
$method, |
396
|
|
|
$absUrl, |
397
|
|
|
$rawHeaders, |
398
|
|
|
$params, |
399
|
|
|
$hasFile |
400
|
|
|
); |
401
|
|
|
|
402
|
|
|
if (array_key_exists('request-id', $rheaders)) { |
403
|
|
|
self::$requestTelemetry = new RequestTelemetry( |
404
|
|
|
$rheaders['request-id'], |
405
|
|
|
Util\Util::currentTimeMillis() - $requestStartMs |
406
|
|
|
); |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
return [$rbody, $rcode, $rheaders, $myApiKey]; |
410
|
|
|
} |
411
|
|
|
|
412
|
|
|
/** |
413
|
|
|
* @param resource $resource |
414
|
|
|
* @param bool $hasCurlFile |
415
|
|
|
* |
416
|
|
|
* @return \CURLFile|string |
417
|
|
|
* @throws Error\Api |
418
|
|
|
*/ |
419
|
|
|
private function _processResourceParam($resource, $hasCurlFile) |
420
|
|
|
{ |
421
|
|
|
if (get_resource_type($resource) !== 'stream') { |
422
|
|
|
throw new Error\Api( |
423
|
|
|
'Attempted to upload a resource that is not a stream' |
424
|
|
|
); |
425
|
|
|
} |
426
|
|
|
|
427
|
|
|
$metaData = stream_get_meta_data($resource); |
428
|
|
|
if ($metaData['wrapper_type'] !== 'plainfile') { |
429
|
|
|
throw new Error\Api( |
430
|
|
|
'Only plainfile resource streams are supported' |
431
|
|
|
); |
432
|
|
|
} |
433
|
|
|
|
434
|
|
|
if ($hasCurlFile) { |
435
|
|
|
// We don't have the filename or mimetype, but the API doesn't care |
436
|
|
|
return new \CURLFile($metaData['uri']); |
437
|
|
|
} else { |
438
|
|
|
return '@'.$metaData['uri']; |
439
|
|
|
} |
440
|
|
|
} |
441
|
|
|
|
442
|
|
|
/** |
443
|
|
|
* @param string $rbody |
444
|
|
|
* @param int $rcode |
445
|
|
|
* @param array $rheaders |
446
|
|
|
* |
447
|
|
|
* @return mixed |
448
|
|
|
* @throws Error\Api |
449
|
|
|
* @throws Error\Authentication |
450
|
|
|
* @throws Error\Card |
451
|
|
|
* @throws Error\InvalidRequest |
452
|
|
|
* @throws Error\OAuth\InvalidClient |
453
|
|
|
* @throws Error\OAuth\InvalidGrant |
454
|
|
|
* @throws Error\OAuth\InvalidRequest |
455
|
|
|
* @throws Error\OAuth\InvalidScope |
456
|
|
|
* @throws Error\OAuth\UnsupportedGrantType |
457
|
|
|
* @throws Error\OAuth\UnsupportedResponseType |
458
|
|
|
* @throws Error\Permission |
459
|
|
|
* @throws Error\RateLimit |
460
|
|
|
* @throws Error\Idempotency |
461
|
|
|
*/ |
462
|
|
|
private function _interpretResponse($rbody, $rcode, $rheaders) |
463
|
|
|
{ |
464
|
|
|
$resp = json_decode($rbody, true); |
465
|
|
|
$jsonError = json_last_error(); |
466
|
|
|
if ($resp === null && $jsonError !== JSON_ERROR_NONE) { |
467
|
|
|
$msg = "Invalid response body from API: $rbody " |
468
|
|
|
. "(HTTP response code was $rcode, json_last_error() was $jsonError)"; |
469
|
|
|
throw new Error\Api($msg, $rcode, $rbody); |
470
|
|
|
} |
471
|
|
|
|
472
|
|
|
if ($rcode < 200 || $rcode >= 300) { |
473
|
|
|
$this->handleErrorResponse($rbody, $rcode, $rheaders, $resp); |
474
|
|
|
} |
475
|
|
|
return $resp; |
476
|
|
|
} |
477
|
|
|
|
478
|
|
|
/** |
479
|
|
|
* @static |
480
|
|
|
* |
481
|
|
|
* @param HttpClient\ClientInterface $client |
482
|
|
|
*/ |
483
|
|
|
public static function setHttpClient($client) |
484
|
|
|
{ |
485
|
|
|
self::$_httpClient = $client; |
486
|
|
|
} |
487
|
|
|
|
488
|
|
|
/** |
489
|
|
|
* @static |
490
|
|
|
* |
491
|
|
|
* Resets any stateful telemetry data |
492
|
|
|
*/ |
493
|
|
|
public static function resetTelemetry() |
494
|
|
|
{ |
495
|
|
|
self::$requestTelemetry = null; |
496
|
|
|
} |
497
|
|
|
|
498
|
|
|
/** |
499
|
|
|
* @return HttpClient\ClientInterface |
500
|
|
|
*/ |
501
|
|
|
private function httpClient() |
502
|
|
|
{ |
503
|
|
|
if (!self::$_httpClient) { |
504
|
|
|
self::$_httpClient = HttpClient\CurlClient::instance(); |
505
|
|
|
} |
506
|
|
|
return self::$_httpClient; |
507
|
|
|
} |
508
|
|
|
} |
509
|
|
|
|
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: