Add support for digest authentication

[ashishajr]

Added support for digest auth for both cli option --digest and for Options section along with integration tests. Should ideally close #4547

[jcamiel]

Hi @ashishajr thanks for the PR, you have to reformat Python files integration/hurl/tests_ok/digest/digest.py with ruff format

[ashishajr]

Hi @ashishajr thanks for the PR, you have to reformat Python files integration/hurl/tests_ok/digest/digest.py with ruff format

Should be fixed now, was running it on the wrong ruff version, thanks!

[jcamiel]

Thanks @ashishajr I'm currently on holidays, I'll review the PR in a few days

[ashishajr]

Thanks @ashishajr I'm currently on holidays, I'll review the PR in a few days

Sure, thanks, happy holidays!

[jcamiel]

@ashishajr I've rebased the PR

@fabricereix the PR implements --digest. Something worth noting: we're using directly --digest option from libcurl. With this Hurl file:

GET http://localhost:8000/digest
HTTP 200

In this use case, curl will do 2 requests:

• a first one GET http://localhost:8000/digest that will returns 401
• a second one GET http://localhost:8000/digest + adding an Authorization header based on the first response. The header is computed by libcurl.

Only the second request is exposed through libcurl, so with --digest we'll expose one request even if there are effectively two requests. I think it's acceptable. Tthe alternative being ourself making the digest authorization workflow, there is more work but it's doable.

What do you think?