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Old 03-09-2007, 01:13 PM   #2
dthomsen8's Avatar
Join Date: Aug 2005
Location: Philadelphia, PA 19130
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Default PHP may help.

Originally Posted by john_b View Post
The second involves some kind of bot that locates online forms and fills fields with crud containing strings of URLS for sites peddling porn, pills or whatever...;-(

I think I've managed to plug any remaining holes but I do have one or two questions. Chief among these is that I wondered if it's possible - given that I do actually manage to detect spam of the kind described - to spoof a '404 document not found' response back to whatever is trawling the site in the (vain??) hope that it might not come back? Or am I whistling in the wind?
PHP is the classic tool to examine input on a web form and reject invalid information, typically by providing a message to the user. I would think you could detect the crud and provide a 404 document not found or some other rejection that would defend your site. I am supposing that your form would not accept http: or www.--- or other recognizable parts of a URL anyway, so detecting the crud should not be so hard. The rejection is unlikely to be triggered by the ordinary user trying to complete the form.

Let us know if you have any success. Unfortunately there are strange characters in the former parts of the Soviet empire, and in other places too, who joyfully look for ways to be pests on the Internet.
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