Symfony Profiler

<?php
namespace Stripe;
/**
* Class ApiRequestor.
*/
class ApiRequestor
{
/**
* @var null|string
*/
private $_apiKey;
/**
* @var string
*/
private $_apiBase;
/**
* @var null|array
*/
private $_appInfo;
/**
* @var HttpClient\ClientInterface
*/
private static $_httpClient;
/**
* @var HttpClient\StreamingClientInterface
*/
private static $_streamingHttpClient;
/**
* @var RequestTelemetry
*/
private static $requestTelemetry;
private static $OPTIONS_KEYS = ['api_key', 'idempotency_key', 'stripe_account', 'stripe_context', 'stripe_version', 'api_base'];
/**
* ApiRequestor constructor.
*
* @param null|string $apiKey
* @param null|string $apiBase
* @param null|array $appInfo
*/
public function __construct($apiKey = null, $apiBase = null, $appInfo = null)
{
$this->_apiKey = $apiKey;
if (!$apiBase) {
$apiBase = Stripe::$apiBase;
}
$this->_apiBase = $apiBase;
$this->_appInfo = $appInfo;
}
/**
* Creates a telemetry json blob for use in 'X-Stripe-Client-Telemetry' headers.
*
* @static
*
* @param RequestTelemetry $requestTelemetry
*
* @return string
*/
private static function _telemetryJson($requestTelemetry)
{
$payload = [
'last_request_metrics' => [
'request_id' => $requestTelemetry->requestId,
'request_duration_ms' => $requestTelemetry->requestDuration,
],
];
if (\count($requestTelemetry->usage) > 0) {
$payload['last_request_metrics']['usage'] = $requestTelemetry->usage;
}
$result = \json_encode($payload);
if (false !== $result) {
return $result;
}
Stripe::getLogger()->error('Serializing telemetry payload failed!');
return '{}';
}
/**
* @static
*
* @param ApiResource|array|bool|mixed $d
*
* @return ApiResource|array|mixed|string
*/
private static function _encodeObjects($d)
{
if ($d instanceof ApiResource) {
return Util\Util::utf8($d->id);
}
if (true === $d) {
return 'true';
}
if (false === $d) {
return 'false';
}
if (\is_array($d)) {
$res = [];
foreach ($d as $k => $v) {
$res[$k] = self::_encodeObjects($v);
}
return $res;
}
return Util\Util::utf8($d);
}
/**
* @param 'delete'|'get'|'post' $method
* @param string $url
* @param null|array $params
* @param null|array $headers
* @param 'v1'|'v2' $apiMode
* @param string[] $usage
*
* @throws Exception\ApiErrorException
*
* @return array tuple containing (ApiReponse, API key)
*/
public function request($method, $url, $params = null, $headers = null, $apiMode = 'v1', $usage = [])
{
$params = $params ?: [];
$headers = $headers ?: [];
list($rbody, $rcode, $rheaders, $myApiKey) =
$this->_requestRaw($method, $url, $params, $headers, $apiMode, $usage);
$json = $this->_interpretResponse($rbody, $rcode, $rheaders, $apiMode);
$resp = new ApiResponse($rbody, $rcode, $rheaders, $json);
return [$resp, $myApiKey];
}
/**
* @param 'delete'|'get'|'post' $method
* @param string $url
* @param callable $readBodyChunkCallable
* @param null|array $params
* @param null|array $headers
* @param 'v1'|'v2' $apiMode
* @param string[] $usage
*
* @throws Exception\ApiErrorException
*/
public function requestStream($method, $url, $readBodyChunkCallable, $params = null, $headers = null, $apiMode = 'v1', $usage = [])
{
$params = $params ?: [];
$headers = $headers ?: [];
list($rbody, $rcode, $rheaders, $myApiKey) =
$this->_requestRawStreaming($method, $url, $params, $headers, $apiMode, $usage, $readBodyChunkCallable);
if ($rcode >= 300) {
$this->_interpretResponse($rbody, $rcode, $rheaders, $apiMode);
}
}
/**
* @param string $rbody a JSON string
* @param int $rcode
* @param array $rheaders
* @param array $resp
* @param 'v1'|'v2' $apiMode
*
* @throws Exception\UnexpectedValueException
* @throws Exception\ApiErrorException
*/
public function handleErrorResponse($rbody, $rcode, $rheaders, $resp, $apiMode)
{
if (!\is_array($resp) || !isset($resp['error'])) {
$msg = "Invalid response object from API: {$rbody} "
. "(HTTP response code was {$rcode})";
throw new Exception\UnexpectedValueException($msg);
}
$errorData = $resp['error'];
$error = null;
if (\is_string($errorData)) {
$error = self::_specificOAuthError($rbody, $rcode, $rheaders, $resp, $errorData);
}
if (!$error) {
$error = 'v1' === $apiMode ? self::_specificV1APIError($rbody, $rcode, $rheaders, $resp, $errorData) : self::_specificV2APIError($rbody, $rcode, $rheaders, $resp, $errorData);
}
throw $error;
}
/**
* @static
*
* @param string $rbody
* @param int $rcode
* @param array $rheaders
* @param array $resp
* @param array $errorData
*
* @return Exception\ApiErrorException
*/
private static function _specificV1APIError($rbody, $rcode, $rheaders, $resp, $errorData)
{
$msg = isset($errorData['message']) ? $errorData['message'] : null;
$param = isset($errorData['param']) ? $errorData['param'] : null;
$code = isset($errorData['code']) ? $errorData['code'] : null;
$type = isset($errorData['type']) ? $errorData['type'] : null;
$declineCode = isset($errorData['decline_code']) ? $errorData['decline_code'] : null;
switch ($rcode) {
case 400:
// 'rate_limit' code is deprecated, but left here for backwards compatibility
// for API versions earlier than 2015-09-08
if ('rate_limit' === $code) {
return Exception\RateLimitException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $param);
}
if ('idempotency_error' === $type) {
return Exception\IdempotencyException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
}
// fall through in generic 400 or 404, returns InvalidRequestException by default
// no break
case 404:
return Exception\InvalidRequestException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $param);
case 401:
return Exception\AuthenticationException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
case 402:
return Exception\CardException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $declineCode, $param);
case 403:
return Exception\PermissionException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
case 429:
return Exception\RateLimitException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $param);
default:
return Exception\UnknownApiErrorException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
}
}
/**
* @static
*
* @param string $rbody
* @param int $rcode
* @param array $rheaders
* @param array $resp
* @param array $errorData
*
* @return Exception\ApiErrorException
*/
private static function _specificV2APIError($rbody, $rcode, $rheaders, $resp, $errorData)
{
$msg = isset($errorData['message']) ? $errorData['message'] : null;
$code = isset($errorData['code']) ? $errorData['code'] : null;
$type = isset($errorData['type']) ? $errorData['type'] : null;
switch ($type) {
case 'idempotency_error':
return Exception\IdempotencyException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
// The beginning of the section generated from our OpenAPI spec
case 'temporary_session_expired':
return Exception\TemporarySessionExpiredException::factory(
$msg,
$rcode,
$rbody,
$resp,
$rheaders,
$code
);
// The end of the section generated from our OpenAPI spec
default:
return self::_specificV1APIError($rbody, $rcode, $rheaders, $resp, $errorData);
}
}
/**
* @static
*
* @param bool|string $rbody
* @param int $rcode
* @param array $rheaders
* @param array $resp
* @param string $errorCode
*
* @return Exception\OAuth\OAuthErrorException
*/
private static function _specificOAuthError($rbody, $rcode, $rheaders, $resp, $errorCode)
{
$description = isset($resp['error_description']) ? $resp['error_description'] : $errorCode;
switch ($errorCode) {
case 'invalid_client':
return Exception\OAuth\InvalidClientException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
case 'invalid_grant':
return Exception\OAuth\InvalidGrantException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
case 'invalid_request':
return Exception\OAuth\InvalidRequestException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
case 'invalid_scope':
return Exception\OAuth\InvalidScopeException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
case 'unsupported_grant_type':
return Exception\OAuth\UnsupportedGrantTypeException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
case 'unsupported_response_type':
return Exception\OAuth\UnsupportedResponseTypeException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
default:
return Exception\OAuth\UnknownOAuthErrorException::factory($description, $rcode, $rbody, $resp, $rheaders, $errorCode);
}
}
/**
* @static
*
* @param null|array $appInfo
*
* @return null|string
*/
private static function _formatAppInfo($appInfo)
{
if (null !== $appInfo) {
$string = $appInfo['name'];
if (\array_key_exists('version', $appInfo) && null !== $appInfo['version']) {
$string .= '/' . $appInfo['version'];
}
if (\array_key_exists('url', $appInfo) && null !== $appInfo['url']) {
$string .= ' (' . $appInfo['url'] . ')';
}
return $string;
}
return null;
}
/**
* @static
*
* @param string $disableFunctionsOutput - String value of the 'disable_function' setting, as output by \ini_get('disable_functions')
* @param string $functionName - Name of the function we are interesting in seeing whether or not it is disabled
*
* @return bool
*/
private static function _isDisabled($disableFunctionsOutput, $functionName)
{
$disabledFunctions = \explode(',', $disableFunctionsOutput);
foreach ($disabledFunctions as $disabledFunction) {
if (\trim($disabledFunction) === $functionName) {
return true;
}
}
return false;
}
/**
* @static
*
* @param string $apiKey the Stripe API key, to be used in regular API requests
* @param null $clientInfo client user agent information
* @param null $appInfo information to identify a plugin that integrates Stripe using this library
* @param 'v1'|'v2' $apiMode
*
* @return array
*/
private static function _defaultHeaders($apiKey, $clientInfo = null, $appInfo = null, $apiMode = 'v1')
{
$uaString = "Stripe/{$apiMode} PhpBindings/" . Stripe::VERSION;
$langVersion = \PHP_VERSION;
$uname_disabled = self::_isDisabled(\ini_get('disable_functions'), 'php_uname');
$uname = $uname_disabled ? '(disabled)' : \php_uname();
// Fallback to global configuration to maintain backwards compatibility.
$appInfo = $appInfo ?: Stripe::getAppInfo();
$ua = [
'bindings_version' => Stripe::VERSION,
'lang' => 'php',
'lang_version' => $langVersion,
'publisher' => 'stripe',
'uname' => $uname,
];
if ($clientInfo) {
$ua = \array_merge($clientInfo, $ua);
}
if (null !== $appInfo) {
$uaString .= ' ' . self::_formatAppInfo($appInfo);
$ua['application'] = $appInfo;
}
return [
'X-Stripe-Client-User-Agent' => \json_encode($ua),
'User-Agent' => $uaString,
'Authorization' => 'Bearer ' . $apiKey,
'Stripe-Version' => Stripe::getApiVersion(),
];
}
/**
* @param 'delete'|'get'|'post' $method
* @param string $url
* @param array $params
* @param array $headers
* @param 'v1'|'v2' $apiMode
*/
private function _prepareRequest($method, $url, $params, $headers, $apiMode)
{
$myApiKey = $this->_apiKey;
if (!$myApiKey) {
$myApiKey = Stripe::$apiKey;
}
if (!$myApiKey) {
$msg = 'No API key provided. (HINT: set your API key using '
. '"Stripe::setApiKey(<API-KEY>)". You can generate API keys from '
. 'the Stripe web interface. See https://stripe.com/api for '
. 'details, or email support@stripe.com if you have any questions.';
throw new Exception\AuthenticationException($msg);
}
// Clients can supply arbitrary additional keys to be included in the
// X-Stripe-Client-User-Agent header via the optional getUserAgentInfo()
// method
$clientUAInfo = null;
if (\method_exists($this->httpClient(), 'getUserAgentInfo')) {
$clientUAInfo = $this->httpClient()->getUserAgentInfo();
}
if ($params && \is_array($params)) {
$optionKeysInParams = \array_filter(
self::$OPTIONS_KEYS,
function ($key) use ($params) {
return \array_key_exists($key, $params);
}
);
if (\count($optionKeysInParams) > 0) {
$message = \sprintf('Options found in $params: %s. Options should '
. 'be passed in their own array after $params. (HINT: pass an '
. 'empty array to $params if you do not have any.)', \implode(', ', $optionKeysInParams));
\trigger_error($message, \E_USER_WARNING);
}
}
$absUrl = $this->_apiBase . $url;
if ('v1' === $apiMode) {
$params = self::_encodeObjects($params);
}
$defaultHeaders = $this->_defaultHeaders($myApiKey, $clientUAInfo, $this->_appInfo, $apiMode);
if (Stripe::$accountId) {
$defaultHeaders['Stripe-Account'] = Stripe::$accountId;
}
if (Stripe::$enableTelemetry && null !== self::$requestTelemetry) {
$defaultHeaders['X-Stripe-Client-Telemetry'] = self::_telemetryJson(self::$requestTelemetry);
}
$hasFile = false;
foreach ($params as $k => $v) {
if (\is_resource($v)) {
$hasFile = true;
$params[$k] = self::_processResourceParam($v);
} elseif ($v instanceof \CURLFile) {
$hasFile = true;
}
}
if ($hasFile) {
$defaultHeaders['Content-Type'] = 'multipart/form-data';
} elseif ('v2' === $apiMode) {
$defaultHeaders['Content-Type'] = 'application/json';
} elseif ('v1' === $apiMode) {
$defaultHeaders['Content-Type'] = 'application/x-www-form-urlencoded';
} else {
throw new Exception\InvalidArgumentException('Unknown API mode: ' . $apiMode);
}
$combinedHeaders = \array_merge($defaultHeaders, $headers);
$rawHeaders = [];
foreach ($combinedHeaders as $header => $value) {
$rawHeaders[] = $header . ': ' . $value;
}
return [$absUrl, $rawHeaders, $params, $hasFile, $myApiKey];
}
/**
* @param 'delete'|'get'|'post' $method
* @param string $url
* @param array $params
* @param array $headers
* @param 'v1'|'v2' $apiMode
* @param string[] $usage
*
* @throws Exception\AuthenticationException
* @throws Exception\ApiConnectionException
*
* @return array
*/
private function _requestRaw($method, $url, $params, $headers, $apiMode, $usage)
{
list($absUrl, $rawHeaders, $params, $hasFile, $myApiKey) = $this->_prepareRequest($method, $url, $params, $headers, $apiMode);
$requestStartMs = Util\Util::currentTimeMillis();
list($rbody, $rcode, $rheaders) = $this->httpClient()->request(
$method,
$absUrl,
$rawHeaders,
$params,
$hasFile,
$apiMode
);
if (
isset($rheaders['request-id'])
&& \is_string($rheaders['request-id'])
&& '' !== $rheaders['request-id']
) {
self::$requestTelemetry = new RequestTelemetry(
$rheaders['request-id'],
Util\Util::currentTimeMillis() - $requestStartMs,
$usage
);
}
return [$rbody, $rcode, $rheaders, $myApiKey];
}
/**
* @param 'delete'|'get'|'post' $method
* @param string $url
* @param array $params
* @param array $headers
* @param string[] $usage
* @param callable $readBodyChunkCallable
* @param 'v1'|'v2' $apiMode
*
* @throws Exception\AuthenticationException
* @throws Exception\ApiConnectionException
*
* @return array
*/
private function _requestRawStreaming($method, $url, $params, $headers, $apiMode, $usage, $readBodyChunkCallable)
{
list($absUrl, $rawHeaders, $params, $hasFile, $myApiKey) = $this->_prepareRequest($method, $url, $params, $headers, $apiMode);
$requestStartMs = Util\Util::currentTimeMillis();
list($rbody, $rcode, $rheaders) = $this->streamingHttpClient()->requestStream(
$method,
$absUrl,
$rawHeaders,
$params,
$hasFile,
$readBodyChunkCallable
);
if (
isset($rheaders['request-id'])
&& \is_string($rheaders['request-id'])
&& '' !== $rheaders['request-id']
) {
self::$requestTelemetry = new RequestTelemetry(
$rheaders['request-id'],
Util\Util::currentTimeMillis() - $requestStartMs
);
}
return [$rbody, $rcode, $rheaders, $myApiKey];
}
/**
* @param resource $resource
*
* @throws Exception\InvalidArgumentException
*
* @return \CURLFile|string
*/
private function _processResourceParam($resource)
{
if ('stream' !== \get_resource_type($resource)) {
throw new Exception\InvalidArgumentException(
'Attempted to upload a resource that is not a stream'
);
}
$metaData = \stream_get_meta_data($resource);
if ('plainfile' !== $metaData['wrapper_type']) {
throw new Exception\InvalidArgumentException(
'Only plainfile resource streams are supported'
);
}
// We don't have the filename or mimetype, but the API doesn't care
return new \CURLFile($metaData['uri']);
}
/**
* @param string $rbody
* @param int $rcode
* @param array $rheaders
* @param 'v1'|'v2' $apiMode
*
* @throws Exception\UnexpectedValueException
* @throws Exception\ApiErrorException
*
* @return array
*/
private function _interpretResponse($rbody, $rcode, $rheaders, $apiMode)
{
$resp = \json_decode($rbody, true);
$jsonError = \json_last_error();
if (null === $resp && \JSON_ERROR_NONE !== $jsonError) {
$msg = "Invalid response body from API: {$rbody} "
. "(HTTP response code was {$rcode}, json_last_error() was {$jsonError})";
throw new Exception\UnexpectedValueException($msg, $rcode);
}
if ($rcode < 200 || $rcode >= 300) {
$this->handleErrorResponse($rbody, $rcode, $rheaders, $resp, $apiMode);
}
return $resp;
}
/**
* @static
*
* @param HttpClient\ClientInterface $client
*/
public static function setHttpClient($client)
{
self::$_httpClient = $client;
}
/**
* @static
*
* @param HttpClient\StreamingClientInterface $client
*/
public static function setStreamingHttpClient($client)
{
self::$_streamingHttpClient = $client;
}
/**
* @static
*
* Resets any stateful telemetry data
*/
public static function resetTelemetry()
{
self::$requestTelemetry = null;
}
/**
* @return HttpClient\ClientInterface
*/
private function httpClient()
{
if (!self::$_httpClient) {
self::$_httpClient = HttpClient\CurlClient::instance();
}
return self::$_httpClient;
}
/**
* @return HttpClient\StreamingClientInterface
*/
private function streamingHttpClient()
{
if (!self::$_streamingHttpClient) {
self::$_streamingHttpClient = HttpClient\CurlClient::instance();
}
return self::$_streamingHttpClient;
}
}

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