Hot links

[misha]

Hello.

I found a lot of hot-links in the form, for example:
<img src='http://www.my-works.org/images/faces/wave1.gif' />
that points directly on the images on my site.

Actually I deny this type of links by using RewriteRule Apache meccanism.

I would like anyway, to send a javascript to browser as a response of this
type
of request. This javascript should create the image on-fly directly on
browser site.

How can I do it?

Thanks
Misha

[Disco Octopus]

in news:bu******** **@fata.cs.inte rbusiness.it,
misha typed:

Hello.

I found a lot of hot-links in the form, for example:
<img src='http://www.my-works.org/images/faces/wave1.gif' />
that points directly on the images on my site.

Actually I deny this type of links by using RewriteRule Apache
meccanism.

I would like anyway, to send a javascript to browser as a response of
this type
of request. This javascript should create the image on-fly directly on
browser site.

How can I do it?

Thanks
Misha

If I understand correctly.... instead of denying the image, you could simply
redirect to another image. yes???

[misha]

> If I understand correctly.... instead of denying the image, you could
simply

redirect to another image. yes???

It is simple to redirect to another image on my site.
I would like to send a javascript instead

Misha

[Michael Winter]

On Wed, 14 Jan 2004 14:54:25 +0100, misha <in**@my-works.org> wrote:

It is simple to redirect to another image on my site.
I would like to send a javascript instead

Surely, if a browser is expecting image data[1], you should only send
image data. If you send mark-up, wouldn't the browser just ignore it as it
wasn't expecting it?

Mike
[1] That is, it sends a HTTP request for
http://www.yoursite.com/someImage.gif

--
Michael Winter
M.******@blueyo nder.co.invalid (replace ".invalid" with ".uk" to reply)

[misha]

> Surely, if a browser is expecting image data[1], you should only send

image data. If you send mark-up, wouldn't the browser just ignore it as it
wasn't expecting it?

Thanks for response. You are right.

I would like to know if there is some method to make browser change it's
mind
and execute my script.

Misha

[Brian Genisio]

misha wrote:

If I understand correctly.... instead of denying the image, you could

simply

redirect to another image. yes???

It is simple to redirect to another image on my site.
I would like to send a javascript instead

Misha

You cannot send javascript in place of an image, but you can create an
image that says your message, and send it in replacement.

You can also use PHP, if you want to send back dynamic images.

Brian

[misha]

> You cannot send javascript in place of an image, but you can create an

image that says your message, and send it in replacement.

You can also use PHP, if you want to send back dynamic images.

Thanks
Misha

[Michael Winter]

On Wed, 14 Jan 2004 16:20:31 +0100, misha <in**@my-works.org> wrote:

Surely, if a browser is expecting image data[1], you should only send
image data. If you send mark-up, wouldn't the browser just ignore it as
it wasn't expecting it?

Thanks for response. You are right.

I would like to know if there is some method to make browser change it's
mind and execute my script.

I very much doubt it.

With links (<A href="...), the browser is free to interpret and render the
data according to its type, whether that be markup, image or sound (etc)
data. However, with IMG elements, the browser is being told explicity that
the data is an image; it should be interpreted and displayed as such. At
best, you could always return an image like this one:

http://www.mlwinter.pwp.blueyonder.co.uk/steal.gif

It's a 1024x768, two-colour GIF and only 4800 bytes. It would have a low
impact on bandwidth and be quite effective at making your point. I know of
a site that does this sort of thing be cause of their massive bandwidth
problems (they actually return a 32767x32767 plain white GIF at just under
710 kilobytes). They also check the server logs and ban requests that
originate from sites that link to them without permission.

Mike

--
Michael Winter
M.******@blueyo nder.co.invalid (replace ".invalid" with ".uk" to reply)

[misha]

Thanks for your response.

I thought to send an ads invocation script that I use on my site, but it
seems impossible.

Misha