Function sendRequest

javascript/selenium-webdriver/http/index.js:179–302

* Sends a single HTTP request. * @param {!Object} options The request options. * @param {function(!httpLib.Response)} onOk The function to call if the * request succeeds. * @param {function(!Error)} onError The function to call if the request fails. * @param {?string=} opt_data The data to

(options, onOk, onError, opt_data, opt_proxy, opt_retries)

 * @param {number=} opt_retries The current number of retries.
 */
function sendRequest(options, onOk, onError, opt_data, opt_proxy, opt_retries) {
  var hostname = options.hostname
  var port = options.port

  if (opt_proxy) {
    let proxy = /** @type {RequestOptions} */ (opt_proxy)

    // RFC 2616, section 5.1.2:
    // The absoluteURI form is REQUIRED when the request is being made to a
    // proxy.
    let absoluteUri = url.format(options)

    // RFC 2616, section 14.23:
    // An HTTP/1.1 proxy MUST ensure that any request message it forwards does
    // contain an appropriate Host header field that identifies the service
    // being requested by the proxy.
    let targetHost = options.hostname
    if (options.port) {
      targetHost += ':' + options.port
    }

    // Update the request options with our proxy info.
    options.headers['Host'] = targetHost
    options.path = absoluteUri
    options.host = proxy.host
    options.hostname = proxy.hostname
    options.port = proxy.port

    // Update the protocol to avoid EPROTO errors when the webdriver proxy
    // uses a different protocol from the remote selenium server.
    options.protocol = opt_proxy.protocol

    if (proxy.auth) {
      options.headers['Proxy-Authorization'] = 'Basic ' + Buffer.from(proxy.auth).toString('base64')
    }
  }

  let requestFn = options.protocol === 'https:' ? https.request : http.request
  var request = requestFn(options, function onResponse(response) {
    if (response.statusCode == 302 || response.statusCode == 303) {
      let location
      try {
        // eslint-disable-next-line n/no-deprecated-api
        location = url.parse(response.headers['location'])
      } catch (ex) {
        onError(
          Error(
            'Failed to parse "Location" header for server redirect: ' +
              ex.message +
              '\nResponse was: \n' +
              new httpLib.Response(response.statusCode, response.headers, ''),
          ),
        )
        return
      }

      if (!location.hostname) {
        location.hostname = hostname