user access control and cookie question

jaylee

In a public discussion forum (without user login verification), how do I contrain a user to be allowed to make a posting every 5 minute.

The purpose of this is to to prevent spamming, some users just are trying to submit a whole page of posting at a time.

I'm thinking about using cookie, can this be done that way? If yes,how?

Also, how do I detect if the user is having cookie enabled in his browser or not?

capricorn732

I think I can be done in this way.

1 - vat you have to do is set cookie's life upto 5 mins
setcookie("nTopicId", "123", time()+300)

This will expire cookie after 5 mins.

2 - Now when a user do posting for a topic you check for $nTopicId and compare it with current tipoc Id. If two Ids are not same then let it do other wise kick buts 🙂

Anon

This is isn't a perfect method though. The user could still delete the cookie and post another message. I'd suggest using a database and associating a timestamp with their username and then upon requesting to post and an item match up timestamps and see if 5 minutes has passed.

jaylee

if the user has his browser's cookie disable, what will happen?

is there some way to detect if the user's browser supports cookie, but not, notifying the user to enable the cookie in order to access my site?

how can this be done?

jaylee

but the problem is that i mentioned this is a public forum, and user doesn't need to login to make a post.

i want to verify via cookie or ip address (which is having some problem when two users using the same proxy) to eliminate spamming postings.