htaccess - require part filename

[Nelsobra]

Hi, what i'm doing, is writting a modification for Invision Power Board, that watermarks all images. The downside of this is it is easily by-passable because IPB does not do that great of job with hiding file names, so what I would like to do is use most likely a .htaccess script to require part of the filename.

So if the url to the image was http://www.site.com/forums/uploads/w...=thisimage.jpg

I would like it so that all images in my uploads directory require watermark.php?name= in the filename or it returns an error. Is this possible, and if so how?

Thanks, Nelsobra

[kwvarga]

if the script loads them dynamically then just move them out of your /public_html/ directory..

[Nelsobra]

I think you misunderstood what I'm trying to do.

I've made it so that all images uploaded to my forum are automatically watermarked, to prevent people from stealing them, also because someone requested I make this mod for them.

BUT the problem with it is that it shows the image name at the end of the php statement, so all someone has to do is remove the watermark.php?name= bit and they can view the image without the watermark. So I want preferably a .htaccess script that requires the watermark.php.... bit on all jpg and png filenames in that directory or it won't work.

[kwvarga]

what i would do..
change the upload to upload to like /uploads/ instead of /public_html/uploads/ and then make the thumbnail script look in /uploads/ instead too..

[Nelsobra]

It's not in public html. And even if it was, this doesn't solve the problem. A person can easily remove the php part, and see the original unwatermarked image.

I really don't think you understand what I'm trying to do.

[kwvarga]

yes i do.. you want ppl to have to go through your script to view the images..
for someone to view the images without a script the pics must be in some folder after public_html/
if you moved then to somewhere outside of public_html/ a script on your server would be necessary for someone to view the pics.. thus, your watermarking php script

[Nelsobra]

Is there anyway to do this keeping the default forum structure. I don't want to have to move my upload folder around, because that would mean I would have to modify my sql database, and correct all the file locations.

[phpistasty]

change your image locatinos to the php script, and have it call the image name from above the public directory.. thats really al l you have to do

[Nelsobra]

This isn't going the way I want it to, so is there any way I can just hash the filename say md5 hash it insert that md5 hash into another column of my ibf_posts table, and then when the url leads to the md5 hash it shows the image shown in the attach_file column which is the real image name...

[kwvarga]

that would be way more complicated then just moving the files off the server..

[hatchet]

RewriteEngine On
RewriteRule ^/forums/uploads/watermark.php\?name=[a-zA-z0-9]\.jpg$ /forums/watermarked/$1

This essentially rewrites the URLs to
www.site.com/forums/watermarked/imagename
This hasn't been tested.. and you would need to rewrite the urls to match that style with watermarked/imagename