preview problem

[Martin S]

I have a form that sends data on to another page so that the user can
preview it before it is inserted in a database table.

The problem is that the form sends both text and possibly an image to
the page used for preview. Even if I use a hidden input field for the
image file it still is displayed on the text centric page but with
enctype for foo bars the image into gibberish that fills a large part of
the preview page.

How can I pass the image on to the preview page without it being
"displayed" ? (Image is validated later).


/M.

[Jan Pieter Kunst]

Re: preview problem

In article <6rKfc.56258$mU 6.232645@newsb. telia.net>,
Martin S <martin@skjolde brand.org> wrote:
[color=blue]
> I have a form that sends data on to another page so that the user can
> preview it before it is inserted in a database table.
>
> The problem is that the form sends both text and possibly an image to
> the page used for preview. Even if I use a hidden input field for the
> image file it still is displayed on the text centric page but with
> enctype for foo bars the image into gibberish that fills a large part of
> the preview page.
>
> How can I pass the image on to the preview page without it being
> "displayed" ? (Image is validated later).
>
>
> /M.[/color]

Store it in a temp directory on the server, and pass on a reference to
the image in a hidden variable to the preview page?

Just the first thing that comes to mind.

JP

--
Sorry, <devnull@cauce. org> is een "spam trap".
E-mail adres is <jpk"at"akamail .com>, waarbij "at" = @.

[FLEB]

Re: preview problem

Regarding this well-known quote, often attributed to Martin S's famous
"Fri, 16 Apr 2004 05:46:42 GMT" speech:
[color=blue]
> I have a form that sends data on to another page so that the user can
> preview it before it is inserted in a database table.
>
> The problem is that the form sends both text and possibly an image to
> the page used for preview. Even if I use a hidden input field for the
> image file it still is displayed on the text centric page but with
> enctype for foo bars the image into gibberish that fills a large part of
> the preview page.
>
> How can I pass the image on to the preview page without it being
> "displayed" ? (Image is validated later).
>
>
> /M.[/color]

You can't put an image inline into HTML code. You have to save it somewhere
on the server, and make an <IMG SRC=""> tag, and possibly a hidden value or
session variable so the app knows where to find the image if the submission
is acceptable.

Remember: Never trust the user. Make sure that image is an image file
before you display it. You don't want your site "displaying " a .php file
they uploaded as an image.

--
-- Rudy Fleminger
-- sp@mmers.and.ev il.ones.will.bo w-down-to.us
(put "Hey!" in the Subject line for priority processing!)
-- http://www.pixelsaredead.com

[Tim Van Wassenhove]

Re: preview problem

In article <1erkvpwgqikp4. i5t29h1k36r1.dl g@40tude.net>, FLEB wrote:[color=blue]
> Remember: Never trust the user. Make sure that image is an image file
> before you display it. You don't want your site "displaying " a .php file
> they uploaded as an image.[/color]

Remember that only looking at the extension of a file is not a good idea
either.

--

http://home.mysth.be/~timvw