The problem can also happen on the other end of the wire, on the adapter end.
Do you know what the tension for the spring? Would think it requires a good amount of tension to avoid too much angle movement. And what's a good place to get the spring?
ok, I think I got it. Fundamentals I know enough to be dangerous, thanks for the pointers to captive portal. I'll be able to run with this now... I upvoted you and 0x0
Yes, I am connected to the store's wifi. Once I am on their network, how do they actually grab it? What headers names do they inspect for, etc. I'd like to actually know the implementation details and code sample. I looked everywhere on Stackeroverflow and can't find anyone who has done this.
Yes, I am connected to the store's wifi. Can you point me to some code that actually can grab the mac address? As the title suggests -- I want to know how they do it.
I ran ifconfig en1 | grep ether and the mac address showed up on my URL omnibar when I firebugged it.
I've even noticed this happening at Starbucks whenever you use their WiFi - they will sniff your MAC address and it shows up in the URL omnibar when you agree to the WiFi terms.
Will the real hackers please chime in on how this (grabbing MAC address) can be achieved...
@gonzi I think your comments are a bit cynical. I don't think this sort of stuff is common knowledge. If it is true that there is a ring of sellers, this is really highly coordinated, dare I say almost organized ecommerce crime. I for one, certainly would like to know these sellers get away with it. I think it is appropriate to get Hacker News community to weigh in on how it might be achieved.
This app looks great, but the only negative for me is that it does offer the ability to take a camera snapshot of a real receipt. Some other apps have this receipt snapshot feature, but not the simplicity of your app. For me this snapshot feature alone would complete the perfect app in this category, and for this reason alone I am holding off on the purchase.