Setup Gulp for Quick and Dirty JS Beautification and Validation

_setup.md

Quick and Dirty Local JS Beautifying and validation

From 0 to hero in 60 seconds!

I often run into unknown samples which I need to quickly deobfuscate.
Scripts can often be malfomred (who has time for QA) and not play nicely during a quick dynamic analysis. 

The following instructions are for setting up a local environment that will beautify and validate 
JS files. 

!!! USE AT YOUR OWN RISK !!!

Setup Instructions

1. Install NPM
2. Install gulp-cli (npm install --global gulp-cli) https://github.com/gulpjs/gulp/blob/master/docs/getting-started.md
3. Create directory for project
4. Copy package.json into directory
5. Copy gulpfile.js into directory
6. Run 'npm install'
7. Create directories ./in/ and ./out/

Running

• Place javascript files in ./in/
• Run 'gulp'

Beautified files will be copied to ./out/ Any JS errors and/or warning will be displayed on screen.

gulpfile.js

var jshint = require('gulp-jshint');
var gulp   = require('gulp');
var beautify = require('gulp-beautify');
var stylish = require('jshint-stylish');
 
gulp.task('beautify', function() {
  return gulp.src('./in/*.js')
    .pipe(beautify({indenSize: 2}))
    .pipe(gulp.dest('./out/'));
});


// JSHint task
gulp.task('jshint',['beautify'],function() {
   return gulp.src('./out/*.js')
       .pipe(jshint())
       .pipe(jshint.reporter(stylish))
       .pipe(jshint.reporter('fail'));
});

gulp.task('default',['jshint','beautify'], function() {
  // run tasks
});

package.json

{
  "name": "qsd",
  "version": "0.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "gulp": "^3.9.1",
    "gulp-beautify": "^2.0.0",
    "gulp-jshint": "^2.0.2",
    "jshint": "^2.9.4",
    "jshint-stylish": "^2.2.1"
  }
}