On 03/01/2011 11:26 AM, Thiago H. de Paula Figueiredo wrote:
On Tue, 01 Mar 2011 13:03:34 -0300, Rich M <rich...@moremagic.com> wrote:
Hi,
Hi!
I currently have a Dispatcher implementation to handle page and asset
requests in order to process authentication and security logic as
necessary. However, it appears to me that (at least in 5.1) the
Dispatcher does not intercept any ActionLinks, EventLinks, form
events, or otherwise related client-side triggers that are not page
requests.
These scenarios should be handled by implementing one of the Tapestry
filter pipelines.
Dispatchers are supposed to return content after handling a request.
Oh, I see. Perhaps then it's reasonable to say I was mislead by this
Tapestry wiki page
http://wiki.apache.org/tapestry/Tapestry5HowToCreateADispatcher ? This
is pretty much exactly what I adapted to my application half a year ago,
'AccessController' name and all.
Is there a service or service interface to implement that would
provide an opportunity to step in and intercept these requests before
a page/component catches them?
Implement a ComponentRequestFilter and contribute it to the
ComponentRequestHandler service.
Thanks, I'll look into that. Going back and looking at that wiki page
though I realized that it was ordering the AccessController with
before:PageRender, I switched it to before:RootPath and it seems to now
capture the events I was talking about and solved a related problem I had.
I am in fact using the Dispatcher to redirect to a login page with an
expired context, I suppose I'm not entirely clear yet between the Wiki
and my working implementation why Dispatcher isn't appropriate. Perhaps
its a case of, 'it will work, but that's not what it was meant for'? Or
are there some nuances to the ComponentRequestHandler pipeline that make
it a more robust authentication point?
Thanks,
Rich
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