websocket authentication issue

[Dimitris Dimopoulos]

Hello all,

I'm trying to communicate via websocket to swupdate to get a status update of my device being programmed.

swupdate version is 2025.05-

A bit of context:

In my python application i create a websocket and then I am trying to connect to it.

So ws.connect(ws://ip:port)

Before my upload even starts I am getting a 401 error,

File "/usr/local/lib/python3.8/dist-packages/websocket/_handshake.py", line 148, in _get_resp_headers raise WebSocketBadStatusException("Handshake status %d %s", status, status_message, resp_headers) websocket._exceptions.WebSocketBadStatusException: Handshake status 401 Unauthorized

To my understanding : This is because of digest authentication. 

if i upload a file with curl like in the example here : SWUpdate: API for external programs — Embedded Software Update Documentation 2025.12 documentation and do not use digest I also do not get any results.

a more verbose curl attempt gives us

* upload completely sent off: 5 out of 5 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 401 Unauthorized
< WWW-Authenticate: Digest qop="auth", realm="swupdate", nonce="65de1c5b"
< Content-Length: 0

If i do curl --digest -u user:pass -F file=@update_file.swu http://host:8080/upload

It works.

How can I tackle this issue? Any help would be greatly appreciated. 

Kind regards,

Dimitris
 

[James Hilliard]

On Tue, Feb 3, 2026 at 6:25 AM Dimitris Dimopoulos <jim....@gmail.com> wrote:
>
> Hello all,
>
> I'm trying to communicate via websocket to swupdate to get a status update of my device being programmed.
>
> swupdate version is 2025.05-
>
> A bit of context:
> In my python application i create a websocket and then I am trying to connect to it.
> So ws.connect(ws://ip:port)
> Before my upload even starts I am getting a 401 error,
>
> File "/usr/local/lib/python3.8/dist-packages/websocket/_handshake.py", line 148, in _get_resp_headers raise WebSocketBadStatusException("Handshake status %d %s", status, status_message, resp_headers) websocket._exceptions.WebSocketBadStatusException: Handshake status 401 Unauthorized
> To my understanding : This is because of digest authentication.

If you run swupdate without authentication does the websocket work?

>
> if i upload a file with curl like in the example here : SWUpdate: API for external programs — Embedded Software Update Documentation 2025.12 documentation and do not use digest I also do not get any results.
>
> a more verbose curl attempt gives us
>
> * upload completely sent off: 5 out of 5 bytes
> * Mark bundle as not supporting multiuse
> < HTTP/1.1 401 Unauthorized
> < WWW-Authenticate: Digest qop="auth", realm="swupdate", nonce="65de1c5b"
> < Content-Length: 0
>
> If i do curl --digest -u user:pass -F file=@update_file.swu http://host:8080/upload
>
> It works.
>
> How can I tackle this issue? Any help would be greatly appreciated.
>
> Kind regards,
> Dimitris
>
>

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[Dimitris Dimopoulos]

Thanks for the reply James, I will check that asap