js-executor-cg-lib/lib/transforms.js

Library to execute javascript code

const vm = require('vm');
const co = require('co');
const convert = require('xml-js');
const Cryptr = require('cryptr');
const lodash = require('lodash');
const { api, objectApiOpt, objectApiReq } = require('api-cg-lib');
const { utils, log } = require('utils-limited');

/**
 *
 * @param properties
 * @returns {Promise<Object>}
 */
let finalResult;
function wait(timeout) {
  return new Promise((ok) => {
    setTimeout(() => {
      console.log('Done wait');
      ok();
    }, timeout);
    console.log('Start wait sec=%s', timeout);
  });
}

const transformJsExecutor = async (properties, data) => {
  let arguments = data;
  const vmExports = {};
  const ctx = vm.createContext({
    // Node Globals
    Buffer,
    clearInterval,
    clearTimeout,
    console,
    exports: vmExports,
    global: {},
    module: { exports: vmExports },
    process,
    require,
    setInterval,
    setTimeout,
    URL,
    URLSearchParams,
    arguments,
    // Other Libraries
    convert,
    Cryptr,
    lodash,
    utils,
    log,
    api,
    objectApiOpt,
    objectApiReq,

    wait: wait.bind(this),
  });

  //console.log('my properties '+properties);
  let code = `async function run(arguments){${properties.code}}`;
  vm.runInContext(code, ctx, {
    displayErrors: true,
  });

  if (ctx.run && typeof ctx.run.apply === 'function') {
    let result;
    if (ctx.run.constructor.name === 'GeneratorFunction') {

      const fn = co.wrap(ctx.run);
      result = fn.apply(this, [arguments]);
    } else {

      result = ctx.run.apply(this, [arguments]);

    }
    if (typeof result === 'object' && typeof result.then === 'function') {

      let returnResult;
      try {
        returnResult = await result;
        // console.log('aqui imprimiendo el result ed ale '+returnResult);
        return returnResult;

      } catch (e) {
        throw Error(e);
      }
    }
  } else {
    return ("Run function was not found, it's over now");
  }
};

module.exports = { transformJsExecutor };