Interactive Multi User Javascript Shell: JSShell

ID N0WHERE:171380
Type n0where
Reporter N0where
Modified 2017-03-17T05:27:18


Interactive Multi User Javascript Shell

An interactive multi-user web based shell written in Python with Flask (for server side) and of course Javascript and HTML (client side). It was initially created in order to debug remote esoteric browsers during tests and research.


  • Multi client support
  • Cyclic DOM objects support
  • Pre flight scripts
  • Command queue
  • Command Context

The shell interface contains various commands (can be revealed using the help command).

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  By @Daniel_Abeles

>> help
| command     | description                                                   |
| list        | Lists all the clients registered                              |
| help        |                                                   |
| select <id> | Selected a specific client from the list                      |
| <command>   | Executes a command to the current selected client             |
| back        | Detaches from the current client                              |
| exit        | Exists this interactive shell                                 |
| coms        | Displays the commands and output for the current client       |
| com <id>    | Displays a specific command and output for the current client |
| comk        | Kills a command ("*" for all)                                 |
| clik        | Kills a client ("*" for all)                                  |

Utilizing the command queue, you can fire multiple commands and the client will execute them one by one. All the commands are executed using a single context, so you issue multiple related commands.

To view the commands issued to a client, first select a client:

>> select 1

Then, issue the coms command to view all the commands for the client:

(Client 1) >> coms

To view the full command and it’s full output (on the coms command the output is truncated to fit the screen):

(Client 1) >> com 1


It is recommended to use a virtual environment:


pyenv virtualenv -p python3.6 venv
pyenv activate venv


virtualenv -p python3.6 venv

source venv/bin/activate

For both

pip install -r requirements.txt


Create the database

python create

Start the server:


Navigate with a browser to the server address

http://localhost:5000 (port can be changed)

Open the interactive shell


Interactive Multi User Javascript Shell: JSShell Download