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From: "mark at klomp dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug debuginfod/29469] Add /buildid/BUILDID/header WEBAPI
Date: Thu, 11 Aug 2022 09:49:37 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29469

--- Comment #3 from Mark Wielaard <mark at klomp dot org> ---
(In reply to Martin Liska from comment #2)
> (In reply to Mark Wielaard from comment #1)
> > Do you mean support for an HTTP HEAD (instead of GET) request?
>=20
> Yep, that's what I'm seeking for :)
>=20
> > Or do you actually want/need a new URL ending in /header to get the
> > information?
>=20
> $ wget --method=3DHEAD
> https://debuginfod.opensuse.org/buildid/
> 929d83693f513cefd1c38e5075f2b10b12a9f322/debuginfo
> Spider mode enabled. Check if remote file exists.
> --2022-08-11 11:16:46--=20
> https://debuginfod.opensuse.org/buildid/
> 929d83693f513cefd1c38e5075f2b10b12a9f322/debuginfo
> Resolving debuginfod.opensuse.org (debuginfod.opensuse.org)...
> 91.193.113.65, 2a07:de40:401::65
> Connecting to debuginfod.opensuse.org
> (debuginfod.opensuse.org)|91.193.113.65|:443... connected.
> HTTP request sent, awaiting response... 400 Bad Request
> Remote file does not exist -- broken link!!!

Right, that is this code:

      if (string(method) !=3D "GET")
        throw reportable_exception(400, "we support GET only");

in debuginfod.cxx (handler_cb).

I think if you just change that to also allow "HEAD" it will just work. But=
 it
does mean the debuginfod server might do more work than strictly necessary.=
 But
libmicrohttpd should just send the headers and ignore the body content.

(Sorry, haven't actually tested any of this, I am currently on a desert isl=
and,
ehe mountain, with spotty interweb access and compute resources)

--=20
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