GetJS

getJS is a tool to extract all the javascript files from a set of given urls.

The urls can also be piped to getJS, or you can specify a singel url with the -url argument. getJS offers a range of options,

varying from completing the urls, to resolving the files.

Prerequisites

Make sure you have GO installed on your system.

Installing

getJS is written in GO. You can install it with go get:

for original code by 003random

go get github.com/003random/getJS

for my modified code

go get github.com/bp0lr/getJS

Why forking

Looks like 003random is not currently merging pull requests.

tool improvements

You can add your own headers to the request. (Cookie: foo=bar)
You can save the files.
You can save inline code also.

Usage

Note: When you supply urls from different sources, e.g. with stdin and an input file, it will add all the urls together :)
Example: echo "https://github.com" | getJS -url=https://example.com -input=domains.txt

To get all options, do:

getJS -h

Flag	Description	Example
--url(-u)	The url to get the javascript sources from	getJS --url=https://poc-server.com
--header(-h)	Add custom headers to your request	getJS --header "Authorization:Bearer token" --header "User-Agent: MyBrowser"
--input(-i)	Input file with urls	getJS --input=domains.txt
--output(-o)	The file where to save the output to	getJS --output=output.txt
--verbose(-v)	Display info of what is going on	getJS --verbose
--complete(-c)	Complete the urls. e.g. /js/index.js -> https://example.com/js/index.js	getJS --complete
--resolve(-r)	Resolve the output and filter out the non existing files (Can only be used in combination with -complete)	getJS --complete --resolve
--nocolors(-n)	Don't color the output	getJS --nocolors
--save(-s)	Download and save the files to the disk	getJS --save

asciinema

Examples

getJS supports stdin data. To pipe urls to getJS, use the following:

$ cat domains.txt | getJS

To add custom headers you can use:

$ getJS -u "https://poc-server.com" -H "Cookie: foo=bar" -H "User-Agent: MyCustomAgent"

To save files and inline code to your disk, you can use:

$ getJS --url=https://poc-server.com --save

If you would like the output to be in JSON format, you can combine it with @Tomnomnom's toJSON:

$ getJS --url=https://poc-server.com | tojson

To feed urls from a file use:

$ getJS --input=domains.txt

To save the results to a file, and don't display anything, use:

$ getJS --url=https://poc-server.com --output=results.txt

If you want to have a list of full urls as output use:

$ getJS --url=domains.txt --complete

If you want to only show the existing js files, use:

$ getJS --url=domains.txt --complete --resolve

Built With

GO - GOlanguage
Goquery - HTML parser with syntaxes like jquery, in GO

Contributing

You are free to submit any issues and/or pull requests :)

License

This project is licensed under the MIT License.

Acknowledgments

@003random for the code base.
@pczajkowski for some nice code improvement and ideas.