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<?php
namespace Stripe;
class BaseStripeClient implements StripeClientInterface, StripeStreamingClientInterface
{
/** @var string default base URL for Stripe's API */
const DEFAULT_API_BASE = 'https://api.stripe.com';
/** @var string default base URL for Stripe's OAuth API */
const DEFAULT_CONNECT_BASE = 'https://connect.stripe.com';
/** @var string default base URL for Stripe's Files API */
const DEFAULT_FILES_BASE = 'https://files.stripe.com';
/** @var array<string, mixed> */
private $config;
/** @var \Stripe\Util\RequestOptions */
private $defaultOpts;
/**
* Initializes a new instance of the {@link BaseStripeClient} class.
*
* The constructor takes a single argument. The argument can be a string, in which case it
* should be the API key. It can also be an array with various configuration settings.
*
* Configuration settings include the following options:
*
* - api_key (null|string): the Stripe API key, to be used in regular API requests.
* - client_id (null|string): the Stripe client ID, to be used in OAuth requests.
* - stripe_account (null|string): a Stripe account ID. If set, all requests sent by the client
* will automatically use the {@code Stripe-Account} header with that account ID.
* - stripe_version (null|string): a Stripe API verion. If set, all requests sent by the client
* will include the {@code Stripe-Version} header with that API version.
*
* The following configuration settings are also available, though setting these should rarely be necessary
* (only useful if you want to send requests to a mock server like stripe-mock):
*
* - api_base (string): the base URL for regular API requests. Defaults to
* {@link DEFAULT_API_BASE}.
* - connect_base (string): the base URL for OAuth requests. Defaults to
* {@link DEFAULT_CONNECT_BASE}.
* - files_base (string): the base URL for file creation requests. Defaults to
* {@link DEFAULT_FILES_BASE}.
*
* @param array<string, mixed>|string $config the API key as a string, or an array containing
* the client configuration settings
*/
public function __construct($config = [])
{
if (\is_string($config)) {
$config = ['api_key' => $config];
} elseif (!\is_array($config)) {
throw new \Stripe\Exception\InvalidArgumentException('$config must be a string or an array');
}
$config = \array_merge($this->getDefaultConfig(), $config);
$this->validateConfig($config);
$this->config = $config;
$this->defaultOpts = \Stripe\Util\RequestOptions::parse([
'stripe_account' => $config['stripe_account'],
'stripe_version' => $config['stripe_version'],
]);
}
/**
* Gets the API key used by the client to send requests.
*
* @return null|string the API key used by the client to send requests
*/
public function getApiKey()
{
return $this->config['api_key'];
}
/**
* Gets the client ID used by the client in OAuth requests.
*
* @return null|string the client ID used by the client in OAuth requests
*/
public function getClientId()
{
return $this->config['client_id'];
}
/**
* Gets the base URL for Stripe's API.
*
* @return string the base URL for Stripe's API
*/
public function getApiBase()
{
return $this->config['api_base'];
}
/**
* Gets the base URL for Stripe's OAuth API.
*
* @return string the base URL for Stripe's OAuth API
*/
public function getConnectBase()
{
return $this->config['connect_base'];
}
/**
* Gets the base URL for Stripe's Files API.
*
* @return string the base URL for Stripe's Files API
*/
public function getFilesBase()
{
return $this->config['files_base'];
}
/**
* Sends a request to Stripe's API.
*
* @param string $method the HTTP method
* @param string $path the path of the request
* @param array $params the parameters of the request
* @param array|\Stripe\Util\RequestOptions $opts the special modifiers of the request
*
* @return \Stripe\StripeObject the object returned by Stripe's API
*/
public function request($method, $path, $params, $opts)
{
$opts = $this->defaultOpts->merge($opts, true);
$baseUrl = $opts->apiBase ?: $this->getApiBase();
$requestor = new \Stripe\ApiRequestor($this->apiKeyForRequest($opts), $baseUrl);
list($response, $opts->apiKey) = $requestor->request($method, $path, $params, $opts->headers);
$opts->discardNonPersistentHeaders();
$obj = \Stripe\Util\Util::convertToStripeObject($response->json, $opts);
$obj->setLastResponse($response);
return $obj;
}
/**
* Sends a request to Stripe's API, passing chunks of the streamed response
* into a user-provided $readBodyChunkCallable callback.
*
* @param string $method the HTTP method
* @param string $path the path of the request
* @param callable $readBodyChunkCallable a function that will be called
* @param array $params the parameters of the request
* @param array|\Stripe\Util\RequestOptions $opts the special modifiers of the request
* with chunks of bytes from the body if the request is successful
*/
public function requestStream($method, $path, $readBodyChunkCallable, $params, $opts)
{
$opts = $this->defaultOpts->merge($opts, true);
$baseUrl = $opts->apiBase ?: $this->getApiBase();
$requestor = new \Stripe\ApiRequestor($this->apiKeyForRequest($opts), $baseUrl);
list($response, $opts->apiKey) = $requestor->requestStream($method, $path, $readBodyChunkCallable, $params, $opts->headers);
}
/**
* Sends a request to Stripe's API.
*
* @param string $method the HTTP method
* @param string $path the path of the request
* @param array $params the parameters of the request
* @param array|\Stripe\Util\RequestOptions $opts the special modifiers of the request
*
* @return \Stripe\Collection of ApiResources
*/
public function requestCollection($method, $path, $params, $opts)
{
$obj = $this->request($method, $path, $params, $opts);
if (!($obj instanceof \Stripe\Collection)) {
$received_class = \get_class($obj);
$msg = "Expected to receive `Stripe\\Collection` object from Stripe API. Instead received `{$received_class}`.";
throw new \Stripe\Exception\UnexpectedValueException($msg);
}
$obj->setFilters($params);
return $obj;
}
/**
* Sends a request to Stripe's API.
*
* @param string $method the HTTP method
* @param string $path the path of the request
* @param array $params the parameters of the request
* @param array|\Stripe\Util\RequestOptions $opts the special modifiers of the request
*
* @return \Stripe\SearchResult of ApiResources
*/
public function requestSearchResult($method, $path, $params, $opts)
{
$obj = $this->request($method, $path, $params, $opts);
if (!($obj instanceof \Stripe\SearchResult)) {
$received_class = \get_class($obj);
$msg = "Expected to receive `Stripe\\SearchResult` object from Stripe API. Instead received `{$received_class}`.";
throw new \Stripe\Exception\UnexpectedValueException($msg);
}
$obj->setFilters($params);
return $obj;
}
/**
* @param \Stripe\Util\RequestOptions $opts
*
* @throws \Stripe\Exception\AuthenticationException
*
* @return string
*/
private function apiKeyForRequest($opts)
{
$apiKey = $opts->apiKey ?: $this->getApiKey();
if (null === $apiKey) {
$msg = 'No API key provided. Set your API key when constructing the '
. 'StripeClient instance, or provide it on a per-request basis '
. 'using the `api_key` key in the $opts argument.';
throw new \Stripe\Exception\AuthenticationException($msg);
}
return $apiKey;
}
/**
* TODO: replace this with a private constant when we drop support for PHP < 5.
*
* @return array<string, mixed>
*/
private function getDefaultConfig()
{
return [
'api_key' => null,
'client_id' => null,
'stripe_account' => null,
'stripe_version' => null,
'api_base' => self::DEFAULT_API_BASE,
'connect_base' => self::DEFAULT_CONNECT_BASE,
'files_base' => self::DEFAULT_FILES_BASE,
];
}
/**
* @param array<string, mixed> $config
*
* @throws \Stripe\Exception\InvalidArgumentException
*/
private function validateConfig($config)
{
// api_key
if (null !== $config['api_key'] && !\is_string($config['api_key'])) {
throw new \Stripe\Exception\InvalidArgumentException('api_key must be null or a string');
}
if (null !== $config['api_key'] && ('' === $config['api_key'])) {
$msg = 'api_key cannot be the empty string';
throw new \Stripe\Exception\InvalidArgumentException($msg);
}
if (null !== $config['api_key'] && (\preg_match('/\s/', $config['api_key']))) {
$msg = 'api_key cannot contain whitespace';
throw new \Stripe\Exception\InvalidArgumentException($msg);
}
// client_id
if (null !== $config['client_id'] && !\is_string($config['client_id'])) {
throw new \Stripe\Exception\InvalidArgumentException('client_id must be null or a string');
}
// stripe_account
if (null !== $config['stripe_account'] && !\is_string($config['stripe_account'])) {
throw new \Stripe\Exception\InvalidArgumentException('stripe_account must be null or a string');
}
// stripe_version
if (null !== $config['stripe_version'] && !\is_string($config['stripe_version'])) {
throw new \Stripe\Exception\InvalidArgumentException('stripe_version must be null or a string');
}
// api_base
if (!\is_string($config['api_base'])) {
throw new \Stripe\Exception\InvalidArgumentException('api_base must be a string');
}
// connect_base
if (!\is_string($config['connect_base'])) {
throw new \Stripe\Exception\InvalidArgumentException('connect_base must be a string');
}
// files_base
if (!\is_string($config['files_base'])) {
throw new \Stripe\Exception\InvalidArgumentException('files_base must be a string');
}
// check absence of extra keys
$extraConfigKeys = \array_diff(\array_keys($config), \array_keys($this->getDefaultConfig()));
if (!empty($extraConfigKeys)) {
// Wrap in single quote to more easily catch trailing spaces errors
$invalidKeys = "'" . \implode("', '", $extraConfigKeys) . "'";
throw new \Stripe\Exception\InvalidArgumentException('Found unknown key(s) in configuration array: ' . $invalidKeys);
}
}
}
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