On 9/12/05, Dave Howorth <[EMAIL PROTECTED]> wrote:
> David Baird wrote:
> > On 9/12/05, Peter Speltz <[EMAIL PROTECTED]> wrote:
> >
> >>Another case, say you wanted images to display only if a user was over
> >>18 . How, from the authenticate sub, would you skip Maypole
> >>processing yet tell Apache to not return the image? . Return ERROR?
> >
> > If you set the template, the model phase won't be run, and your
> > alternate template will replace the image. Your 'template' would need
> > to be an image as well, because the browser asked for something in an
> > 'img' tag.
>
> Ermm? What stops the model being processed is $applicable != OK (which
> is as a result of is_applicable() and which also sets the template).
>
Setting the template doesn't stop process() being called on the model
class, but the first thing process() does is check if a template has
been set already, and if so, it just returns.
> > Or, your authenticate() could return an AUTH_REQUIRED or FORBIDDEN
> > error and the code will be returned to the browser. (You'll need to
> > import these constants from somewhere).
>
> How does this work? Maypole clearly isn't expecting anything but OK or
> DECLINED (which is the same numerical value as ERROR) because of these
> lines in Maypole.pm:
>
> if ( $r->debug and $status != OK and $status != DECLINED ) {
> $r->view_object->error( $r,
> "Got unexpected status $status from calling authentication" );
>
Yes, but note there's no return call there. So the view object will
generate some output, and then we drop back to the next statement
in handler_guts(), which is
return $status unless $status == OK;
So your non-Maypole return code is preserved, at least for custom
authentication. Note that if debug is turned off, the stanza you quote
is skipped entirely, and the status returned from call_authenticate is
returned immediately.
> And whenever I make authenticate return anything other than OK, the
> browser displays 500 - server error. Is this a CGI::Maypole problem or
> do you see the same with mod_perl?
Hmm, from a quick scan of my code, I don't return AUTH_REQUIRED, I
just redirect to the login page and return OK. I'll play around with
that.
d.
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