Support for the HTTP Digest authentication on MicroPython (requests and/or aiohttp)

[beyonlo]

Hi all!

I need to communicate with some products that have an API that support only HTTP Digest authentication, I mean, they do not support HTTP Basic authentication and it is not possible to disable the authentication.

I see that MicroPython has two HTTP client libs that can be used for that purpose:

1. requests (https://github.com/micropython/micropython-lib/tree/master/python-ecosys/requests) - It is sync, and support HTTP Basic authentication, but does not support HTTP Digest authentication
2. aiohttp (https://github.com/micropython/micropython-lib/tree/master/python-ecosys/aiohttp/aiohttp) - It is async, and does not support HTTP Basic authentication and does not support HTTP Digest authentication as well.

I see there is this uwwwauth.py -> https://github.com/pfalcon/pycopy-lib/blob/master/uwwwauth/uwwwauth.py that is a support for HTTP Digest authentication for the pycopy (It seems to be like as old fork of MicroPython). Can that help to support HTTP Digest authentication on the requests and/or aiohttp clients?

Is it a simple or difficult task to support HTTP Digest authentication on the MicroPython requests/aiohttp? If I were to choose just one that http client libs to be supported by the HTTP Digest authentication, I would like to be the aiohttp because it is async (asyncio), so I do not need to use threads to have a non blocking code.

Thank you!

[jonnor]

Digest authentication is done using the Authorization header. Both request and aiohttp allow to specify that from the outside. So you do not need to pick a library, nor does this need to happen inside the library. You just need to have code that crafts the correctly formatted header

[PV-autarky-optimizer]

Is the question still valid?

I had the same problem. Here is my solution. It connects with 2 pieces of requests.get(my_url, headers = my_header_handling_the_nonce, auth = None, timeout=20) and Digest Authentification to MyEnergy API as an example.
https://myenergi.info/micropython-on-esp32-myenergi-api-t14838.html

However, there are different variants of HTTP Digest authentication. You might need to adapt my solution to your variant. Source code for other variants can be taken from here: https://github.com/psf/requests/blob/main/src/requests/auth.py

Good look!