Hotel like Wifi manager
Sounds like a silly question, but bear with me..
If you go into Peet's Coffee and access the wifi, you're taken to a web page that requires a 4-digit code you get with a purchase.
If you do the same at Starbucks you're taken to a page and asked to OK the terms of service.
I want to build something similar for a local independent coffee shop, something that requires the user to write a little about themselves before they can access the Internet. I'm not sure which way to go -- looking for wifi routers that run an internal web server, or finding one that lets you direct users to an external website for authentication, somehow redirecting back to the access point once successful.
Has anyone done anything like this and can share their experience?