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webssh/README.rst

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WebSSH
------
|Build Status| |codecov| |PyPI - Python Version| |PyPI|
Introduction
------------
A simple web application to be used as an ssh client to connect to your
ssh servers. It is written in Python, base on tornado, paramiko and
xterm.js.
Features
--------
- SSH password authentication supported, including empty password.
- SSH public-key authentication supported, including DSA RSA ECDSA
Ed25519 keys.
- Encrypted keys supported.
- Fullscreen terminal supported.
- Terminal window resizable.
- Auto detect the ssh server's default encoding.
- Modern browsers including Chrome, Firefox, Safari, Edge, Opera
supported.
Preview
-------
|Login| |Terminal|
How it works
~~~~~~~~~~~~
::
+---------+ http +--------+ ssh +-----------+
| browser | <==========> | webssh | <=======> | ssh server|
+---------+ websocket +--------+ ssh +-----------+
Requirements
~~~~~~~~~~~~
- Python 2.7/3.4+
Quickstart
~~~~~~~~~~
1. Install this app, run command ``pip install webssh``
2. Start a webserver, run command ``wssh``
3. Open your browser, navigate to ``127.0.0.1:8888``
4. Input your data, submit the form.
Server options
~~~~~~~~~~~~~~
.. code:: bash
# listen address and port
wssh --address='0.0.0.0' --port=8000
# missing host key policy
wssh --policy=reject
# logging level
wssh --logging=debug
# log to file
wssh --log-file-prefix=main.log
# more options
wssh --help
Use console
~~~~~~~~~~~
.. code:: javascript
// connect to your ssh server
wssh.connect(hostname, port, username, password, privatekey);
// pass an object to wssh.connect
var opts = {
hostname: 'hostname',
port: 'port',
username: 'username',
password: 'password',
privatekey: 'the private key text'
};
wssh.connect(opts);
// without an argument, wssh will use the form data to connect
wssh.connect();
// set a new encoding for client to use
wssh.set_encoding(encoding);
// reset encoding to use the default one
wssh.reset_encoding();
// send a command to the server
wssh.send('ls -l');
Tests
~~~~~
Use unittest to run all tests
::
python -m unittest discover tests
Use pytest to run all tests
::
python -m pytest tests
An example of config for running this app behind an Nginx server
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code:: nginx
location / {
proxy_pass http://127.0.0.1:8888;
proxy_http_version 1.1;
proxy_read_timeout 300;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Real-PORT $remote_port;
}
Tips
----
- Try to use Nginx as a front web server (see config example above) and
enable SSL, this will prevent your ssh credentials from being
uncovered. Also afterwards the communication between your browser and
the web server will be encrypted as they use secured websockets.
- Try to use reject policy as the missing host key policy along with
your verified known\_hosts, this will prevent man-in-the-middle
attacks. The idea is that it checks the system host keys
file("~/.ssh/known\_hosts") and the application host keys
file("./known\_hosts") in order, if the ssh server's hostname is not
found or the key is not matched, the connection will be aborted.
.. |Build Status| image:: https://travis-ci.org/huashengdun/webssh.svg?branch=master
:target: https://travis-ci.org/huashengdun/webssh
.. |codecov| image:: https://codecov.io/gh/huashengdun/webssh/branch/master/graph/badge.svg
:target: https://codecov.io/gh/huashengdun/webssh
.. |PyPI - Python Version| image:: https://img.shields.io/pypi/pyversions/webssh.svg
.. |PyPI| image:: https://img.shields.io/pypi/v/webssh.svg
.. |Login| image:: https://github.com/huashengdun/webssh/raw/master/preview/login.png
.. |Terminal| image:: https://github.com/huashengdun/webssh/raw/master/preview/terminal.png