Package Exports

moduleraid

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (moduleraid) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

moduleRaid

🎁 Taking apart webpackJsonp

Installation

You can get moduleRaid over npm

$ npm install moduleraid

Or if you directly want to use it in the browser

<script src="https://unpkg.com/moduleraid@3.1.0/moduleraid.js"></script>
<!-- minified -->
<script src="https://unpkg.com/moduleraid@3.1.0/moduleraid.min.js"></script>

Alternatively, just copy the script from moduleraid.js and run it in a devtool console on the site of your choosing.

Usage

Preparation

Using moduleRaid as a module, simply require and execute it somewhere where it will end up as a public facing script on a page that also includes a Webpack build!

const moduleRaid = require('moduleraid')

window.mR = moduleRaid()

If you a running the script from the console or loading it over a service like unpkg, no further need for preparations!

The `moduleraid` object

Once moduleRaid is run or included on a page that includes a Webpack build (usually noted by a webpackJsonp function), it will return a object, containing:

modules: An object containing all modules we could get from Webpack
constructors: An array containing all module constructor functions
get(id): Get the module from the specified id
findModule(query): Return the module that has query as a key in its exports
findFunction(query): Return functions that include query (query can be either a string or a function)

If you run the code in devtools or load it as external script from unpkg/etc. the moduleRaid object can be found in window.mR by default.

Note: If moduleRaid had to get modules through iteration, constructors will be empty and so findFunction will not work.

How it works

There already was a script basically doing the same as moduleRaid some months earlier, called webcrack (made by no-boot-device), which was rendered obsolute due to structural changes in how you can access Webpack modules from the outside.

This library is an effort to bring back the ability to inspect all available modules, for debugging or userscript purposes.

As noted above, Webpack exposes a function webpackJsonp containing all the code that has been bundled with Webpack. The function takes three parameters, all of them being an array. The first two don't seem to really matter, the last one is interesting, it seems to directly return a module given an index.

So, in a brute-forcy manner we simply run a while over webpackJsonp([], [], [i]) until we get an exception from Webpack (trying to run call on undefined), and now we have all modules (or most of them)!

Known Issues

There seem to be a lot of empty modules, I'm not sure if these are padding or something is missing here

License

moduleRaid is licensed under the MIT License

moduleraid