libsoup 2.3.0 will be merged to svn head and released later today, to become a part of GNOME 2.22. This is an API-breaking release, so everything that uses libsoup needs to be ported to the new release.

I'm attaching a patch for bug-buddy. As you'll see, the XML-RPC code in libsoup has been completely rewritten, and though it's a little hard to tell from the patch, it makes things much simpler. :)

Three things to note:

  1) Some of the XML-RPC routines return GErrors directly now, so I tried to
     fix up bug-buddy's internal use of GErrors so that it made use of them,
     rather than creating its own GErrors out of the XML-RPC status. I may
     have messed this up.

  2) Bug-buddy is currently base64-encoding crash dumps twice. (Once itself
     and once by asking libsoup to do it.) I preserved that behavior since
     I didn't know what the server would do if we only encoded them once.

  3) There's another FIXME re: the User-Agent line. This is pretty minor/anal,
     but I noticed it and figured I'd mention it. I didn't change it because
     I wasn't sure if anything on the server side cared about the exact
     format.