https://sourceware.org/bugzilla/show_bug.cgi?id=32318

            Bug ID: 32318
           Summary: client should avoid url duplication for different
                    ima:FOO modes
           Product: elfutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: debuginfod
          Assignee: unassigned at sourceware dot org
          Reporter: fche at redhat dot com
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

Even with IMA stuff going into debuginfod/-client in 0.192ish, we can't in good
conscience enable ima:enforcing as a mode for fedora.  That's because it's
possibly risky: breaking some downloads if anything's wrong with the signature
data over at the server archive, which could happen due to build system
inconsistencies or other unknown factors.  (We don't have a census.)

So in the absence of that certainty, an ima:permissive mode like bug #31842
pleads for could do the job.  In the absence of that mode, this would be a way
of emulating it:

DEBUGINFOD_URLS="ima:enforcing https://debuginfod.fedoraproject.org ima:ignore
https://debuginfod.fedoraproject.org";

.... but the debuginfod client code duplicate-eliminates the two occurrences of
the same URL, defeating the purpose.  So we need to get the client code to
consider ima mode when dupe eliminating.  Let's track this change here.

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