Sweet...I added our own rss hack page with the code you pointed me to and it works.  This is what I am using to get google groups rss feeds working:
 
{rss:feed=http://watij.xwiki.com/xwiki/bin/view/XWiki/RssHack?url=http://groups.google.com/group/watij/feed/rss_v2_0_msgs.xml&xpage=plain|count=10 }
 
Thanks!
 
Brian

 
On 4/30/06, Robin Fernandes <rewbs.soal@gmail.com> wrote:
Sure you can use it, but it might be up and down a bit depending on
what I'm doing on that host.

In fact, here's a better hack.. all that php script does is reprint
the content of the url that is passed as a parameter. You could
integrate something similar right into your XWiki - see:
http://soal.xwiki.com/xwiki/bin/view/Sandbox/printUrlContent?xpage=code
(might need a little more work to allow for a querystring on the url
to reprint).
I have updated http://soal.xwiki.com/xwiki/bin/view/Sandbox/rsstest
with a 4th example that uses that instead of the external php script.

Cheers,
Robin

On 30/04/06, Brian Knorr < btknorr@gmail.com> wrote:
>
> Thank you so much for the help...the php proxy works great -- am I allowed
> to use this proxy for my xwiki site?
>
> Thanks,
>
>
> Brian
>
>
>
> On 4/30/06, Robin Fernandes <rewbs.soal@gmail.com> wrote:
> > I think the problem isn't the content of the feed, but accessing it.
> > See here & view code:
> > http://soal.xwiki.com/xwiki/bin/view/Sandbox/rsstest
> > The first attempt reads the feed directly - that fails. Apparently
> > it's a problem with Rome.
> > The second is the content of the feed cut & pasted to a different url
> > - that works.
> > The third is accessing the feed through a script that simply
> > regurgitates the content of the URL that's passed as an argument -
> > that works. I use this for my feeds.
> >
> > By the way, if you get frustrated with the way the RSS macro presents
> > things, you can access the SyndFeed object directly with Velocity like
> > #set($feed=$xwiki.feed.getFeed($feedUrl)) . See the
> > http://openmpt.xwiki.com homepage for an example. Only problem is I'm
> > not sure how to handle exceptions in Velocity.
> >
> > Hope that's some help.
> >
> > Cheers,
> > Robin
> >
> > On 30/04/06, Brian Knorr <btknorr@gmail.com> wrote:
> > >
> > > Isn't this standard stuff?  Does xwiki support RSS 2.0 or Atom 1.0?
> This is
> > > how I am using the RSS macro:
> > >
> > >
> {rss:feed=http://groups.google.com/group/watij/feed/rss_v2_0_msgs.xml
> }
> > >
> > > Here is the error I get:
> > >
> > >
> > > rss: Error processing
> > >
> http://groups.google.com/group/watij/feed/rss_v2_0_msgs.xml
> :
> > > Server returned HTTP response code: 403 for URL:
> > >
> http://groups.google.com/group/watij/feed/rss_v2_0_msgs.xml
> > >
> > >
> > >
> > > On 4/30/06, Robin Fernandes <rewbs.soal@gmail.com > wrote:
> > > > Could it be the same problem as this?
> > > >
> > >
> http://mail-archive.objectweb.org/xwiki-users/2006-03/msg00109.html
> > > >
> > > > On 30/04/06, Brian Knorr <btknorr@gmail.com> wrote:
> > > > >
> > > > > I am trying to include and external rss feed in my xwiki page but it
> > > doesn't
> > > > > seem to work.  I am trying the rss macro with the following rss
> feed:
> > > > >
> > > > >
> > >
> http://groups.google.com/group/watij/feed/rss_v2_0_msgs.xml
> > > > >
> > > > > But it just errors out...please help!
> > > > >
> > > > > Thanks,
> > > > >
> > > > >
> > > > > Brian
> > > > >
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