Yikes, that sounds dangerous... am I going to be able to load random files
from your server by tweaking that filename?
On 10/26/07, ronaldlee <[EMAIL PROTECTED]> wrote:
>
>
> Thanks for the tip.
>
> I find a solution to this problem by simply passing the filename as the
> link's param, like this:
>
> public Link getSmallThumbnailImageURL(){
> return resources.createActionLink("imageFileURL", false,
> new
> Object[]{getImageFilename()});
> }
>
> public StreamResponse onImageFileURL(String imageFilename) {
> ....
>
> thx!
>
> Ronald
>
>
> Josh Canfield-2 wrote:
> >
> > The @Persist("flash") removes the object after page B is processed the
> > first
> > time, then when you call the action handler page B is processed again
> and
> > your field is null, as it should be.
> >
> > You should be able to simply add a cleanupRender method to page B which
> > resets the flash persisted field. I believe that when the action event
> is
> > triggered by the img it will get access the persisted field which nulls
> > the
> > field, and won't trigger the cleanupRender thus allowing the field to
> stay
> > null.
> >
> > I haven't written the code, but I'm fairly sure that it should work and
> > it's
> > not much work to test it out.
> >
> > Good luck,
> > Josh
> >
> >
> > On 10/26/07, ronaldlee <[EMAIL PROTECTED]> wrote:
> >>
> >>
> >> Hi,
> >>
> >> I am having problem with @Persist(Flash) and StreamResponse.. I am
> using
> >> the
> >> latest 5.0.6 release.
> >> Here is my setup:
> >> - I have two pages, page A is for uploading an image, and page B is for
> >> previewing an image.
> >> - Page A injects Page B, and Page B has a @Persist("flash") on a
> >> "imageFilename" attribute.
> >> - Page A's onSuccess method is called when an image file is uploaded
> >> (using
> >> tapestry-upload), then it will call Page B's setImageFilename method to
> >> pass
> >> on the filename being uploaded, then Page B is returned.
> >> - Page B will use the StreamResponse approach to return the image file
> >> (because the image file is stored in a location not directly accessible
> >> from
> >> Internet), following the tapestry howto's instruction
> >> (http://wiki.apache.org/tapestry/Tapestry5HowToCreatePieChartsInAPage).
> >> Page
> >> B injects a ComponentResource for creating an action link, which in
> >> return
> >> will be inserted in the template.. see the howto's for more detail.
> >>
> >> And here is the problem, inside that "StreamResponse onImageFileURL()"
> >> function, the "imageFilename" attribute is null (and as a result I
> cannot
> >> read that file of course), but on Page B's template I am able to
> display
> >> the
> >> value ${imageFilename}. There may have something to do which come first
> >> (the
> >> onImageFileURL is called first before the imageFilename is set?).
> >>
> >> Is it an issue and is there any workaround? Or just I am doing it the
> >> wrong
> >> way?
> >>
> >> thx!
> >> Ronald
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/T-5--%40Persist%28%22Flash%22%29-and-StreamResponse-tf4700054.html#a13436353
> >> Sent from the Tapestry - User mailing list archive at Nabble.com.
> >>
> >>
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> >>
> >>
> >
> >
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>
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> View this message in context:
> http://www.nabble.com/T-5--%40Persist%28%22Flash%22%29-and-StreamResponse-tf4700054.html#a13437036
> Sent from the Tapestry - User mailing list archive at Nabble.com.
>
>
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