"use strict"; //  request.js////  Created by Cisco Fresquet on 04/24/2017.//  Copyright 2017 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// /* global module */// @module request//// This module contains the `request` module implementation // ===========================================================================================module.exports = {     // ------------------------------------------------------------------    // cb(error, responseOfCorrectContentType, optionalCallbackParameter) of url. A subset of npm request.    request: function (options, callback, optionalCallbackParameter) {        var httpRequest = new XMLHttpRequest(), key;        // QT bug: apparently doesn't handle onload. Workaround using readyState.        httpRequest.onreadystatechange = function () {            var READY_STATE_DONE = 4;            var HTTP_OK = 200;            if (httpRequest.readyState >= READY_STATE_DONE) {                var error = (httpRequest.status !== HTTP_OK) && httpRequest.status.toString() + ':' + httpRequest.statusText,                    response = !error && httpRequest.responseText,                    contentType = !error && httpRequest.getResponseHeader('content-type');                if (!error && contentType.indexOf('application/json') === 0) { // ignoring charset, etc.                    try {                        response = JSON.parse(response);                    } catch (e) {                        error = e;                    }                }                if (error) {                    response = { statusCode: httpRequest.status };                }                 callback(error, response, optionalCallbackParameter);                 // Break circular reference to httpRequest so the engine can garbage collect it.                httpRequest.onreadystatechange = null;            }        };        if (typeof options === 'string') {            options = { uri: options };        }        if (options.url) {            options.uri = options.url;        }        if (!options.method) {            options.method = 'GET';        }        if (options.body && (options.method === 'GET')) { // add query parameters            var params = [], appender = (-1 === options.uri.search('?')) ? '?' : '&';            for (key in options.body) {                if (options.body.hasOwnProperty(key)) {                    params.push(key + '=' + options.body[key]);                }            }            options.uri += appender + params.join('&');            delete options.body;        }        if (options.json) {            options.headers = options.headers || {};            options.headers["Content-type"] = "application/json";            options.body = JSON.stringify(options.body);        }        for (key in options.headers || {}) {            if (options.headers.hasOwnProperty(key)) {                httpRequest.setRequestHeader(key, options.headers[key]);            }        }        httpRequest.open(options.method, options.uri, true);        httpRequest.send(options.body || null);    }}; // ===========================================================================================// @function - debug loggingfunction debug() {    print('RequestModule | ' + [].slice.call(arguments).join(' '));}