TijsVerkoyen\Dropbox\Dropbox::doOAuthCall PHP Метод

    private function doOAuthCall($url, array $parameters = null, $method = 'POST', $expectJSON = true)
    {
        // redefine
        $url = (string) $url;
        // append default parameters
        $parameters['oauth_consumer_key'] = $this->getApplicationKey();
        $parameters['oauth_signature_method'] = 'PLAINTEXT';
        $parameters['oauth_version'] = '1.0';
        $parameters['oauth_signature'] = $this->getApplicationSecret() . '&' . $this->getOAuthTokenSecret();
        if ($method == 'POST') {
            $options[CURLOPT_POST] = true;
            $options[CURLOPT_POSTFIELDS] = $parameters;
        } else {
            // reset post
            $options[CURLOPT_POST] = 0;
            unset($options[CURLOPT_POSTFIELDS]);
            // add the parameters into the querystring
            if (!empty($parameters)) {
                $url .= '?' . $this->buildQuery($parameters);
            }
        }
        // set options
        $options[CURLOPT_URL] = self::API_URL . '/' . $url;
        $options[CURLOPT_PORT] = self::API_PORT;
        $options[CURLOPT_USERAGENT] = $this->getUserAgent();
        if (ini_get('open_basedir') == '' && ini_get('safe_mode' == 'Off')) {
            $options[CURLOPT_FOLLOWLOCATION] = true;
        }
        $options[CURLOPT_RETURNTRANSFER] = true;
        $options[CURLOPT_TIMEOUT] = (int) $this->getTimeOut();
        $options[CURLOPT_SSL_VERIFYPEER] = false;
        $options[CURLOPT_SSL_VERIFYHOST] = false;
        $options[CURLOPT_HTTPHEADER] = array('Expect:');
        // init
        $this->curl = curl_init();
        // set options
        curl_setopt_array($this->curl, $options);
        // execute
        $response = curl_exec($this->curl);
        $headers = curl_getinfo($this->curl);
        // fetch errors
        $errorNumber = curl_errno($this->curl);
        $errorMessage = curl_error($this->curl);
        // error?
        if ($errorNumber != '') {
            throw new Exception($errorMessage, $errorNumber);
        }
        // return
        if ($expectJSON) {
            return json_decode($response, true);
        }
        // fallback
        return $response;
    }