public function Send(array $request)
 {
     $method = isset($request['METHOD']) ? strtoupper($request['METHOD']) : '';
     if ($method !== \Bitrix\Main\Web\HttpClient::HTTP_GET && $method !== \Bitrix\Main\Web\HttpClient::HTTP_POST) {
         throw new Bitrix\Main\ArgumentException("Could not find 'METHOD'.", 'request');
     }
     $path = isset($request['PATH']) && is_string($request['PATH']) ? $request['PATH'] : '';
     if ($path === '') {
         throw new Bitrix\Main\ArgumentException("Could not find 'PATH'.", 'request');
     }
     $postData = $method === \Bitrix\Main\Web\HttpClient::HTTP_POST && isset($request['BODY']) ? $request['BODY'] : null;
     if (!$this->client) {
         $this->client = new \Bitrix\Main\Web\HttpClient();
     }
     $this->client->setRedirect(false);
     if ($method === \Bitrix\Main\Web\HttpClient::HTTP_POST && is_array($postData)) {
         //Force UTF encoding
         $this->client->setCharset('UTF-8');
         if ((!isset($request['UTF']) || !$request['UTF']) && !defined('BX_UTF')) {
             $postData = \Bitrix\Main\Text\Encoding::convertEncodingArray($postData, SITE_CHARSET, 'UTF-8');
         }
     }
     $headers = isset($request['HEADERS']) ? $request['HEADERS'] : null;
     if (is_array($headers)) {
         foreach ($headers as $k => $v) {
             $this->client->setHeader($k, $v, true);
         }
     }
     if (!empty($this->cookies)) {
         $this->client->setCookies($this->cookies);
     }
     if ($this->enableProxy) {
         $this->client->setProxy($this->proxyServer, $this->proxyPort, $this->proxyUserName, $this->proxyUserPassword);
     }
     if ($this->userName !== '') {
         $this->client->setAuthorization($this->userName, $this->userPassword);
     }
     $this->client->setHeader('User-Agent', $this->userAgent, true);
     $absolutePath = $this->GetUrl() . $path;
     if (!$this->client->query($method, $absolutePath, $postData)) {
         $this->responseData = null;
         $this->errors = $this->client->getError();
     } else {
         /**@var \Bitrix\Main\Web\HttpHeaders*/
         $responseHeaders = $this->client->getHeaders();
         //STATUS.VERSION & STATUS.PHRASE are delcared for backward compatibility only.
         $this->responseData = array('STATUS' => array('VERSION' => '', 'CODE' => $this->client->getStatus(), 'PHRASE' => ''), 'CONTENT' => array('TYPE' => $this->client->getContentType(), 'ENCODING' => $this->client->getCharset()), 'HEADERS' => $responseHeaders, 'BODY' => $this->client->getResult());
         if ($responseHeaders->get('Set-Cookie', false) !== null) {
             $this->cookies = array_merge($this->cookies, $this->client->getCookies()->toArray());
             CCrmExternalSale::Update($this->externalSaleId, array('COOKIE' => serialize($this->cookies)));
         }
         $this->errors = array();
     }
     return $this->responseData;
 }