Do not redirect to login page for ACME challenges

[DL6ER]

What does this implement/fix?

See title and #2202 for details.

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Related issue or feature (if applicable): Fixes #2202

Pull request in docs with documentation (if applicable): N/A

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[firefart]

Still getting redirected according to webserver.log:

[2025-02-19 19:59:39.621 CET 7325] Authentication required, redirecting to /admin/login
[2025-02-19 19:59:39.661 CET 7325] Authentication required, redirecting to /admin/login

I think the problem is because of the strcmp, you check for an equal string, but it should only start with the path. The file within the acme-challenge directory has a random name, for example /.well-known/acme-challenge/FZSXUfuC6geuL8prbg9bJFyZjedTGwy4 or /.well-known/acme-challenge/s5j6NbOiX0Uv05DDQunjRHPjjIiWdZLl

[DL6ER]

Yes, I didn't know that there will be files in this directory. I just pushed a corresponding change.

[firefart]

Thanks! Works now as expected

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/v6-post-release-fixes-and-findings/76480/1