[uug] anti-leech script... use cookie instead?

[Wade Preston Shearer]

i am currently preventing leeching of PDF downloads for a company's 
website by checking the referring URL (with PHP).

this works beautifully, except that there is an bug in internet 
explorer/PDF that causes an error. i have written a little 'detect the 
browser' code in there that generally fixes it, but customers are still 
having problems. i would like to tell them to just use a real browser, 
but hey... unfortunately most of the customers use IE.

to make things easier, i cam considering replacing the 'check the 
referring url' bit of my script with a 'check for cookie' bit. i would 
set a cookie when a user first entered the site. and then, if they 
tried to download a file, the script would simply check for the 
existence of the cookie.

what-a-ya'll think about using cookies for validating in an anti-leech 
script?



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