[Bug debuginfod/29469] New: Add /buildid/BUILDID/header WEBAPI

[Bug debuginfod/29469] New: Add /buildid/BUILDID/header WEBAPI

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=29469

            Bug ID: 29469
           Summary: Add /buildid/BUILDID/header WEBAPI
           Product: elfutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: debuginfod
          Assignee: unassigned at sourceware dot org
          Reporter: mliska at suse dot cz
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

I'm writing a checking script that iterates binaries and investigates if
debuginfod has the binary indexed. Thus, I use /buildid/BUILDID/debuginfo
WEBAPI which is expensive regarding the net transport.

I would be happy with /header where I only get x-debuginfod-* headers.

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[Bug debuginfod/29469] Add /buildid/BUILDID/header WEBAPI

[mark at klomp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29469

Mark Wielaard <mark at klomp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|mjw at fedoraproject dot org       |mark at klomp dot org

--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
Do you mean support for an HTTP HEAD (instead of GET) request?
Or do you actually want/need a new URL ending in /header to get the
information?

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[Bug debuginfod/29469] Add /buildid/BUILDID/header WEBAPI

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=29469

--- Comment #2 from Martin Liska <mliska at suse dot cz> ---
(In reply to Mark Wielaard from comment #1)
> Do you mean support for an HTTP HEAD (instead of GET) request?

Yep, that's what I'm seeking for :)

> Or do you actually want/need a new URL ending in /header to get the
> information?

$ wget --method=HEAD
https://debuginfod.opensuse.org/buildid/929d83693f513cefd1c38e5075f2b10b12a9f322/debuginfo
Spider mode enabled. Check if remote file exists.
--2022-08-11 11:16:46-- 
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!!!

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[Bug debuginfod/29469] Add /buildid/BUILDID/header WEBAPI

[mark at klomp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29469

--- 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?
> 
> Yep, that's what I'm seeking for :)
> 
> > Or do you actually want/need a new URL ending in /header to get the
> > information?
> 
> $ wget --method=HEAD
> https://debuginfod.opensuse.org/buildid/
> 929d83693f513cefd1c38e5075f2b10b12a9f322/debuginfo
> Spider mode enabled. Check if remote file exists.
> --2022-08-11 11:16:46-- 
> 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) != "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 island,
ehe mountain, with spotty interweb access and compute resources)

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[Bug debuginfod/29469] Add /buildid/BUILDID/header WEBAPI

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29469

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Frank Ch. Eigler <fche at redhat dot com> ---
this need has been identified in another RFE, with some work toward a webapi
and c api

*** This bug has been marked as a duplicate of bug 28284 ***

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