On Fri, May 10, 2013 at 1:29 AM, Tomas Doran <bobtf...@bobtfish.net> wrote:

>
>
> You're after this:
> https://metacpan.org/module/Catalyst::ActionRole::DetachOnDie
>
> which gives you the alternate behaviour (i.e. detaching from the chain on
> first exception).
>

We have a number of applications, a few quite large, where some controllers
inherit from different base classes.   We could try and retro fit all
existing code, but it would be a good-sized project.  So the monkey patch
we did (as well as Dami Laurent had done in
2008<http://lists.scsys.co.uk/pipermail/catalyst/2008-March/017789.html>)
is better for us.

I'm pretty sure this issue is not well known amongst our current (and
future) developers and thus it's quite likely someone would forget this in
a new Controller.

We all understand that an uncaught exception should not bring down the
server and instead generate a 500, but I think few would assume that when
using Chained an exception would not stop the request dead in its tracks
and instead is implicitly trapped and allowed to continue.

I think the more likely situation now is code running when it is not
expected -- which could be a serious security issue if the earlier action
in a chain is used for access control.

What would the developers think of deprecating this behavior (for the few
that might actually be relying on this) and issue a warning if a config
option is not set that fixes the issue?



-- 
Bill Moseley
mose...@hank.org
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