1 files changed, 735 insertions, 0 deletions

diff --git a/vendor/stripe/stripe-php/lib/HttpClient/CurlClient.php b/vendor/stripe/stripe-php/lib/HttpClient/CurlClient.php
new file mode 100644
index 0000000..2133522
--- /dev/null
+++ b/vendor/stripe/stripe-php/lib/HttpClient/CurlClient.php
@@ -0,0 +1,735 @@
+<?php
+
+namespace Stripe\HttpClient;
+
+use Stripe\Exception;
+use Stripe\Stripe;
+use Stripe\Util;
+
+// @codingStandardsIgnoreStart
+// PSR2 requires all constants be upper case. Sadly, the CURL_SSLVERSION
+// constants do not abide by those rules.
+
+// Note the values come from their position in the enums that
+// defines them in cURL's source code.
+
+// Available since PHP 5.5.19 and 5.6.3
+if (!\defined('CURL_SSLVERSION_TLSv1_2')) {
+    \define('CURL_SSLVERSION_TLSv1_2', 6);
+}
+// @codingStandardsIgnoreEnd
+
+// Available since PHP 7.0.7 and cURL 7.47.0
+if (!\defined('CURL_HTTP_VERSION_2TLS')) {
+    \define('CURL_HTTP_VERSION_2TLS', 4);
+}
+
+class CurlClient implements ClientInterface
+{
+    protected static $instance;
+
+    public static function instance()
+    {
+        if (!static::$instance) {
+            static::$instance = new static();
+        }
+
+        return static::$instance;
+    }
+
+    protected $defaultOptions;
+
+    /** @var \Stripe\Util\RandomGenerator */
+    protected $randomGenerator;
+
+    protected $userAgentInfo;
+
+    protected $enablePersistentConnections = true;
+
+    protected $enableHttp2;
+
+    protected $curlHandle;
+
+    protected $requestStatusCallback;
+
+    /**
+     * CurlClient constructor.
+     *
+     * Pass in a callable to $defaultOptions that returns an array of CURLOPT_* values to start
+     * off a request with, or an flat array with the same format used by curl_setopt_array() to
+     * provide a static set of options. Note that many options are overridden later in the request
+     * call, including timeouts, which can be set via setTimeout() and setConnectTimeout().
+     *
+     * Note that request() will silently ignore a non-callable, non-array $defaultOptions, and will
+     * throw an exception if $defaultOptions returns a non-array value.
+     *
+     * @param null|array|callable $defaultOptions
+     * @param null|\Stripe\Util\RandomGenerator $randomGenerator
+     */
+    public function __construct($defaultOptions = null, $randomGenerator = null)
+    {
+        $this->defaultOptions = $defaultOptions;
+        $this->randomGenerator = $randomGenerator ?: new Util\RandomGenerator();
+        $this->initUserAgentInfo();
+
+        $this->enableHttp2 = $this->canSafelyUseHttp2();
+    }
+
+    public function __destruct()
+    {
+        $this->closeCurlHandle();
+    }
+
+    public function initUserAgentInfo()
+    {
+        $curlVersion = \curl_version();
+        $this->userAgentInfo = [
+            'httplib' => 'curl ' . $curlVersion['version'],
+            'ssllib' => $curlVersion['ssl_version'],
+        ];
+    }
+
+    public function getDefaultOptions()
+    {
+        return $this->defaultOptions;
+    }
+
+    public function getUserAgentInfo()
+    {
+        return $this->userAgentInfo;
+    }
+
+    /**
+     * @return bool
+     */
+    public function getEnablePersistentConnections()
+    {
+        return $this->enablePersistentConnections;
+    }
+
+    /**
+     * @param bool $enable
+     */
+    public function setEnablePersistentConnections($enable)
+    {
+        $this->enablePersistentConnections = $enable;
+    }
+
+    /**
+     * @return bool
+     */
+    public function getEnableHttp2()
+    {
+        return $this->enableHttp2;
+    }
+
+    /**
+     * @param bool $enable
+     */
+    public function setEnableHttp2($enable)
+    {
+        $this->enableHttp2 = $enable;
+    }
+
+    /**
+     * @return null|callable
+     */
+    public function getRequestStatusCallback()
+    {
+        return $this->requestStatusCallback;
+    }
+
+    /**
+     * Sets a callback that is called after each request. The callback will
+     * receive the following parameters:
+     * <ol>
+     *   <li>string $rbody The response body</li>
+     *   <li>integer $rcode The response status code</li>
+     *   <li>\Stripe\Util\CaseInsensitiveArray $rheaders The response headers</li>
+     *   <li>integer $errno The curl error number</li>
+     *   <li>string|null $message The curl error message</li>
+     *   <li>boolean $shouldRetry Whether the request will be retried</li>
+     *   <li>integer $numRetries The number of the retry attempt</li>
+     * </ol>.
+     *
+     * @param null|callable $requestStatusCallback
+     */
+    public function setRequestStatusCallback($requestStatusCallback)
+    {
+        $this->requestStatusCallback = $requestStatusCallback;
+    }
+
+    // USER DEFINED TIMEOUTS
+
+    const DEFAULT_TIMEOUT = 80;
+    const DEFAULT_CONNECT_TIMEOUT = 30;
+
+    private $timeout = self::DEFAULT_TIMEOUT;
+    private $connectTimeout = self::DEFAULT_CONNECT_TIMEOUT;
+
+    public function setTimeout($seconds)
+    {
+        $this->timeout = (int) \max($seconds, 0);
+
+        return $this;
+    }
+
+    public function setConnectTimeout($seconds)
+    {
+        $this->connectTimeout = (int) \max($seconds, 0);
+
+        return $this;
+    }
+
+    public function getTimeout()
+    {
+        return $this->timeout;
+    }
+
+    public function getConnectTimeout()
+    {
+        return $this->connectTimeout;
+    }
+
+    // END OF USER DEFINED TIMEOUTS
+
+    private function constructRequest($method, $absUrl, $headers, $params, $hasFile)
+    {
+        $method = \strtolower($method);
+
+        $opts = [];
+        if (\is_callable($this->defaultOptions)) { // call defaultOptions callback, set options to return value
+            $opts = \call_user_func_array($this->defaultOptions, \func_get_args());
+            if (!\is_array($opts)) {
+                throw new Exception\UnexpectedValueException('Non-array value returned by defaultOptions CurlClient callback');
+            }
+        } elseif (\is_array($this->defaultOptions)) { // set default curlopts from array
+            $opts = $this->defaultOptions;
+        }
+
+        $params = Util\Util::objectsToIds($params);
+
+        if ('get' === $method) {
+            if ($hasFile) {
+                throw new Exception\UnexpectedValueException(
+                    'Issuing a GET request with a file parameter'
+                );
+            }
+            $opts[\CURLOPT_HTTPGET] = 1;
+            if (\count($params) > 0) {
+                $encoded = Util\Util::encodeParameters($params);
+                $absUrl = "{$absUrl}?{$encoded}";
+            }
+        } elseif ('post' === $method) {
+            $opts[\CURLOPT_POST] = 1;
+            $opts[\CURLOPT_POSTFIELDS] = $hasFile ? $params : Util\Util::encodeParameters($params);
+        } elseif ('delete' === $method) {
+            $opts[\CURLOPT_CUSTOMREQUEST] = 'DELETE';
+            if (\count($params) > 0) {
+                $encoded = Util\Util::encodeParameters($params);
+                $absUrl = "{$absUrl}?{$encoded}";
+            }
+        } else {
+            throw new Exception\UnexpectedValueException("Unrecognized method {$method}");
+        }
+
+        // It is only safe to retry network failures on POST requests if we
+        // add an Idempotency-Key header
+        if (('post' === $method) && (Stripe::$maxNetworkRetries > 0)) {
+            if (!$this->hasHeader($headers, 'Idempotency-Key')) {
+                $headers[] = 'Idempotency-Key: ' . $this->randomGenerator->uuid();
+            }
+        }
+
+        // By default for large request body sizes (> 1024 bytes), cURL will
+        // send a request without a body and with a `Expect: 100-continue`
+        // header, which gives the server a chance to respond with an error
+        // status code in cases where one can be determined right away (say
+        // on an authentication problem for example), and saves the "large"
+        // request body from being ever sent.
+        //
+        // Unfortunately, the bindings don't currently correctly handle the
+        // success case (in which the server sends back a 100 CONTINUE), so
+        // we'll error under that condition. To compensate for that problem
+        // for the time being, override cURL's behavior by simply always
+        // sending an empty `Expect:` header.
+        $headers[] = 'Expect: ';
+
+        $absUrl = Util\Util::utf8($absUrl);
+        $opts[\CURLOPT_URL] = $absUrl;
+        $opts[\CURLOPT_RETURNTRANSFER] = true;
+        $opts[\CURLOPT_CONNECTTIMEOUT] = $this->connectTimeout;
+        $opts[\CURLOPT_TIMEOUT] = $this->timeout;
+        $opts[\CURLOPT_HTTPHEADER] = $headers;
+        $opts[\CURLOPT_CAINFO] = Stripe::getCABundlePath();
+        if (!Stripe::getVerifySslCerts()) {
+            $opts[\CURLOPT_SSL_VERIFYPEER] = false;
+        }
+
+        if (!isset($opts[\CURLOPT_HTTP_VERSION]) && $this->getEnableHttp2()) {
+            // For HTTPS requests, enable HTTP/2, if supported
+            $opts[\CURLOPT_HTTP_VERSION] = \CURL_HTTP_VERSION_2TLS;
+        }
+
+        // Stripe's API servers are only accessible over IPv4. Force IPv4 resolving to avoid
+        // potential issues (cf. https://github.com/stripe/stripe-php/issues/1045).
+        $opts[\CURLOPT_IPRESOLVE] = \CURL_IPRESOLVE_V4;
+
+        return [$opts, $absUrl];
+    }
+
+    public function request($method, $absUrl, $headers, $params, $hasFile)
+    {
+        list($opts, $absUrl) = $this->constructRequest($method, $absUrl, $headers, $params, $hasFile);
+
+        list($rbody, $rcode, $rheaders) = $this->executeRequestWithRetries($opts, $absUrl);
+
+        return [$rbody, $rcode, $rheaders];
+    }
+
+    public function requestStream($method, $absUrl, $headers, $params, $hasFile, $readBodyChunk)
+    {
+        list($opts, $absUrl) = $this->constructRequest($method, $absUrl, $headers, $params, $hasFile);
+
+        $opts[\CURLOPT_RETURNTRANSFER] = false;
+        list($rbody, $rcode, $rheaders) = $this->executeStreamingRequestWithRetries($opts, $absUrl, $readBodyChunk);
+
+        return [$rbody, $rcode, $rheaders];
+    }
+
+    /**
+     * Curl permits sending \CURLOPT_HEADERFUNCTION, which is called with lines
+     * from the header and \CURLOPT_WRITEFUNCTION, which is called with bytes
+     * from the body. You usually want to handle the body differently depending
+     * on what was in the header.
+     *
+     * This function makes it easier to specify different callbacks depending
+     * on the contents of the heeder. After the header has been completely read
+     * and the body begins to stream, it will call $determineWriteCallback with
+     * the array of headers. $determineWriteCallback should, based on the
+     * headers it receives, return a "writeCallback" that describes what to do
+     * with the incoming HTTP response body.
+     *
+     * @param array $opts
+     * @param callable $determineWriteCallback
+     *
+     * @return array
+     */
+    private function useHeadersToDetermineWriteCallback($opts, $determineWriteCallback)
+    {
+        $rheaders = new Util\CaseInsensitiveArray();
+        $headerCallback = function ($curl, $header_line) use (&$rheaders) {
+            return self::parseLineIntoHeaderArray($header_line, $rheaders);
+        };
+
+        $writeCallback = null;
+        $writeCallbackWrapper = function ($curl, $data) use (&$writeCallback, &$rheaders, &$determineWriteCallback) {
+            if (null === $writeCallback) {
+                $writeCallback = \call_user_func_array($determineWriteCallback, [$rheaders]);
+            }
+
+            return \call_user_func_array($writeCallback, [$curl, $data]);
+        };
+
+        return [$headerCallback, $writeCallbackWrapper];
+    }
+
+    private static function parseLineIntoHeaderArray($line, &$headers)
+    {
+        if (false === \strpos($line, ':')) {
+            return \strlen($line);
+        }
+        list($key, $value) = \explode(':', \trim($line), 2);
+        $headers[\trim($key)] = \trim($value);
+
+        return \strlen($line);
+    }
+
+    /**
+     * Like `executeRequestWithRetries` except:
+     *   1. Does not buffer the body of a successful (status code < 300)
+     *      response into memory -- instead, calls the caller-provided
+     *      $readBodyChunk with each chunk of incoming data.
+     *   2. Does not retry if a network error occurs while streaming the
+     *      body of a successful response.
+     *
+     * @param array $opts cURL options
+     * @param string $absUrl
+     * @param callable @readBodyChunk
+     * @param mixed $readBodyChunk
+     *
+     * @return array
+     */
+    public function executeStreamingRequestWithRetries($opts, $absUrl, $readBodyChunk)
+    {
+        /** @var bool */
+        $shouldRetry = false;
+        /** @var int */
+        $numRetries = 0;
+
+        // Will contain the bytes of the body of the last request
+        // if it was not successful and should not be retries
+        /** @var null|string */
+        $rbody = null;
+
+        // Status code of the last request
+        /** @var null|bool */
+        $rcode = null;
+
+        // Array of headers from the last request
+        /** @var null|array */
+        $lastRHeaders = null;
+
+        $errno = null;
+        $message = null;
+
+        $determineWriteCallback = function ($rheaders) use (
+            &$readBodyChunk,
+            &$shouldRetry,
+            &$rbody,
+            &$numRetries,
+            &$rcode,
+            &$lastRHeaders,
+            &$errno
+        ) {
+            $lastRHeaders = $rheaders;
+            $errno = \curl_errno($this->curlHandle);
+
+            $rcode = \curl_getinfo($this->curlHandle, \CURLINFO_HTTP_CODE);
+
+            // Send the bytes from the body of a successful request to the caller-provided $readBodyChunk.
+            if ($rcode < 300) {
+                $rbody = null;
+
+                return function ($curl, $data) use (&$readBodyChunk) {
+                    // Don't expose the $curl handle to the user, and don't require them to
+                    // return the length of $data.
+                    \call_user_func_array($readBodyChunk, [$data]);
+
+                    return \strlen($data);
+                };
+            }
+
+            $shouldRetry = $this->shouldRetry($errno, $rcode, $rheaders, $numRetries);
+
+            // Discard the body from an unsuccessful request that should be retried.
+            if ($shouldRetry) {
+                return function ($curl, $data) {
+                    return \strlen($data);
+                };
+            } else {
+                // Otherwise, buffer the body into $rbody. It will need to be parsed to determine
+                // which exception to throw to the user.
+                $rbody = '';
+
+                return function ($curl, $data) use (&$rbody) {
+                    $rbody .= $data;
+
+                    return \strlen($data);
+                };
+            }
+        };
+
+        while (true) {
+            list($headerCallback, $writeCallback) = $this->useHeadersToDetermineWriteCallback($opts, $determineWriteCallback);
+            $opts[\CURLOPT_HEADERFUNCTION] = $headerCallback;
+            $opts[\CURLOPT_WRITEFUNCTION] = $writeCallback;
+
+            $shouldRetry = false;
+            $rbody = null;
+            $this->resetCurlHandle();
+            \curl_setopt_array($this->curlHandle, $opts);
+            $result = \curl_exec($this->curlHandle);
+            $errno = \curl_errno($this->curlHandle);
+            if (0 !== $errno) {
+                $message = \curl_error($this->curlHandle);
+            }
+            if (!$this->getEnablePersistentConnections()) {
+                $this->closeCurlHandle();
+            }
+
+            if (\is_callable($this->getRequestStatusCallback())) {
+                \call_user_func_array(
+                    $this->getRequestStatusCallback(),
+                    [$rbody, $rcode, $lastRHeaders, $errno, $message, $shouldRetry, $numRetries]
+                );
+            }
+
+            if ($shouldRetry) {
+                ++$numRetries;
+                $sleepSeconds = $this->sleepTime($numRetries, $lastRHeaders);
+                \usleep((int) ($sleepSeconds * 1000000));
+            } else {
+                break;
+            }
+        }
+
+        if (0 !== $errno) {
+            $this->handleCurlError($absUrl, $errno, $message, $numRetries);
+        }
+
+        return [$rbody, $rcode, $lastRHeaders];
+    }
+
+    /**
+     * @param array $opts cURL options
+     * @param string $absUrl
+     */
+    public function executeRequestWithRetries($opts, $absUrl)
+    {
+        $numRetries = 0;
+
+        while (true) {
+            $rcode = 0;
+            $errno = 0;
+            $message = null;
+
+            // Create a callback to capture HTTP headers for the response
+            $rheaders = new Util\CaseInsensitiveArray();
+            $headerCallback = function ($curl, $header_line) use (&$rheaders) {
+                return CurlClient::parseLineIntoHeaderArray($header_line, $rheaders);
+            };
+            $opts[\CURLOPT_HEADERFUNCTION] = $headerCallback;
+
+            $this->resetCurlHandle();
+            \curl_setopt_array($this->curlHandle, $opts);
+            $rbody = \curl_exec($this->curlHandle);
+
+            if (false === $rbody) {
+                $errno = \curl_errno($this->curlHandle);
+                $message = \curl_error($this->curlHandle);
+            } else {
+                $rcode = \curl_getinfo($this->curlHandle, \CURLINFO_HTTP_CODE);
+            }
+            if (!$this->getEnablePersistentConnections()) {
+                $this->closeCurlHandle();
+            }
+
+            $shouldRetry = $this->shouldRetry($errno, $rcode, $rheaders, $numRetries);
+
+            if (\is_callable($this->getRequestStatusCallback())) {
+                \call_user_func_array(
+                    $this->getRequestStatusCallback(),
+                    [$rbody, $rcode, $rheaders, $errno, $message, $shouldRetry, $numRetries]
+                );
+            }
+
+            if ($shouldRetry) {
+                ++$numRetries;
+                $sleepSeconds = $this->sleepTime($numRetries, $rheaders);
+                \usleep((int) ($sleepSeconds * 1000000));
+            } else {
+                break;
+            }
+        }
+
+        if (false === $rbody) {
+            $this->handleCurlError($absUrl, $errno, $message, $numRetries);
+        }
+
+        return [$rbody, $rcode, $rheaders];
+    }
+
+    /**
+     * @param string $url
+     * @param int $errno
+     * @param string $message
+     * @param int $numRetries
+     *
+     * @throws Exception\ApiConnectionException
+     */
+    private function handleCurlError($url, $errno, $message, $numRetries)
+    {
+        switch ($errno) {
+            case \CURLE_COULDNT_CONNECT:
+            case \CURLE_COULDNT_RESOLVE_HOST:
+            case \CURLE_OPERATION_TIMEOUTED:
+                $msg = "Could not connect to Stripe ({$url}).  Please check your "
+                 . 'internet connection and try again.  If this problem persists, '
+                 . "you should check Stripe's service status at "
+                 . 'https://twitter.com/stripestatus, or';
+
+                break;
+
+            case \CURLE_SSL_CACERT:
+            case \CURLE_SSL_PEER_CERTIFICATE:
+                $msg = "Could not verify Stripe's SSL certificate.  Please make sure "
+                 . 'that your network is not intercepting certificates.  '
+                 . "(Try going to {$url} in your browser.)  "
+                 . 'If this problem persists,';
+
+                break;
+
+            default:
+                $msg = 'Unexpected error communicating with Stripe.  '
+                 . 'If this problem persists,';
+        }
+        $msg .= ' let us know at support@stripe.com.';
+
+        $msg .= "\n\n(Network error [errno {$errno}]: {$message})";
+
+        if ($numRetries > 0) {
+            $msg .= "\n\nRequest was retried {$numRetries} times.";
+        }
+
+        throw new Exception\ApiConnectionException($msg);
+    }
+
+    /**
+     * Checks if an error is a problem that we should retry on. This includes both
+     * socket errors that may represent an intermittent problem and some special
+     * HTTP statuses.
+     *
+     * @param int $errno
+     * @param int $rcode
+     * @param array|\Stripe\Util\CaseInsensitiveArray $rheaders
+     * @param int $numRetries
+     *
+     * @return bool
+     */
+    private function shouldRetry($errno, $rcode, $rheaders, $numRetries)
+    {
+        if ($numRetries >= Stripe::getMaxNetworkRetries()) {
+            return false;
+        }
+
+        // Retry on timeout-related problems (either on open or read).
+        if (\CURLE_OPERATION_TIMEOUTED === $errno) {
+            return true;
+        }
+
+        // Destination refused the connection, the connection was reset, or a
+        // variety of other connection failures. This could occur from a single
+        // saturated server, so retry in case it's intermittent.
+        if (\CURLE_COULDNT_CONNECT === $errno) {
+            return true;
+        }
+
+        // The API may ask us not to retry (eg; if doing so would be a no-op)
+        // or advise us to retry (eg; in cases of lock timeouts); we defer to that.
+        if (isset($rheaders['stripe-should-retry'])) {
+            if ('false' === $rheaders['stripe-should-retry']) {
+                return false;
+            }
+            if ('true' === $rheaders['stripe-should-retry']) {
+                return true;
+            }
+        }
+
+        // 409 Conflict
+        if (409 === $rcode) {
+            return true;
+        }
+
+        // Retry on 500, 503, and other internal errors.
+        //
+        // Note that we expect the stripe-should-retry header to be false
+        // in most cases when a 500 is returned, since our idempotency framework
+        // would typically replay it anyway.
+        if ($rcode >= 500) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Provides the number of seconds to wait before retrying a request.
+     *
+     * @param int $numRetries
+     * @param array|\Stripe\Util\CaseInsensitiveArray $rheaders
+     *
+     * @return int
+     */
+    private function sleepTime($numRetries, $rheaders)
+    {
+        // Apply exponential backoff with $initialNetworkRetryDelay on the
+        // number of $numRetries so far as inputs. Do not allow the number to exceed
+        // $maxNetworkRetryDelay.
+        $sleepSeconds = \min(
+            Stripe::getInitialNetworkRetryDelay() * 1.0 * 2 ** ($numRetries - 1),
+            Stripe::getMaxNetworkRetryDelay()
+        );
+
+        // Apply some jitter by randomizing the value in the range of
+        // ($sleepSeconds / 2) to ($sleepSeconds).
+        $sleepSeconds *= 0.5 * (1 + $this->randomGenerator->randFloat());
+
+        // But never sleep less than the base sleep seconds.
+        $sleepSeconds = \max(Stripe::getInitialNetworkRetryDelay(), $sleepSeconds);
+
+        // And never sleep less than the time the API asks us to wait, assuming it's a reasonable ask.
+        $retryAfter = isset($rheaders['retry-after']) ? (float) ($rheaders['retry-after']) : 0.0;
+        if (\floor($retryAfter) === $retryAfter && $retryAfter <= Stripe::getMaxRetryAfter()) {
+            $sleepSeconds = \max($sleepSeconds, $retryAfter);
+        }
+
+        return $sleepSeconds;
+    }
+
+    /**
+     * Initializes the curl handle. If already initialized, the handle is closed first.
+     */
+    private function initCurlHandle()
+    {
+        $this->closeCurlHandle();
+        $this->curlHandle = \curl_init();
+    }
+
+    /**
+     * Closes the curl handle if initialized. Do nothing if already closed.
+     */
+    private function closeCurlHandle()
+    {
+        if (null !== $this->curlHandle) {
+            \curl_close($this->curlHandle);
+            $this->curlHandle = null;
+        }
+    }
+
+    /**
+     * Resets the curl handle. If the handle is not already initialized, or if persistent
+     * connections are disabled, the handle is reinitialized instead.
+     */
+    private function resetCurlHandle()
+    {
+        if (null !== $this->curlHandle && $this->getEnablePersistentConnections()) {
+            \curl_reset($this->curlHandle);
+        } else {
+            $this->initCurlHandle();
+        }
+    }
+
+    /**
+     * Indicates whether it is safe to use HTTP/2 or not.
+     *
+     * @return bool
+     */
+    private function canSafelyUseHttp2()
+    {
+        // Versions of curl older than 7.60.0 don't respect GOAWAY frames
+        // (cf. https://github.com/curl/curl/issues/2416), which Stripe use.
+        $curlVersion = \curl_version()['version'];
+
+        return \version_compare($curlVersion, '7.60.0') >= 0;
+    }
+
+    /**
+     * Checks if a list of headers contains a specific header name.
+     *
+     * @param string[] $headers
+     * @param string $name
+     *
+     * @return bool
+     */
+    private function hasHeader($headers, $name)
+    {
+        foreach ($headers as $header) {
+            if (0 === \strncasecmp($header, "{$name}: ", \strlen($name) + 2)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}