[Telepathy] [Bug 18576] New: Re-specify avatar tokens to be globally unique

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Nov 17 10:48:21 PST 2008


           Summary: Re-specify avatar tokens to be globally unique
           Product: Telepathy
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: telepathy-spec
        AssignedTo: telepathy at lists.freedesktop.org
        ReportedBy: simon.mcvittie at collabora.co.uk

At the moment, a correctly implemented avatar cache has to be keyed by the
triple (our account, their identifier, avatar token).

It would be vastly easier to implement an avatar cache if we changed the
specification for the avatar token to require it to be globally unique, so it
could just be keyed by avatar tokens.

For protocols where an avatar is identified by (our identifier, their
identifier, a timestamp), the CM could construct a token by concatenating those
three things and hashing them or something.

We need to verify that Butterfly's implementation of avatars will still be
spec-compliant after this. Haze and Gabble use the hash of the avatar, so their
tokens are already globally unique.

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