Build a custom wifi stack

Question

I'm building out an IoT solution for a client and the network admins are insisting that the devices only connect through the guest network, which has a captive portal with terms of service that must be accepted with a UI button press before gaining external internet access. Most IoT Solutions I've looked at so far (electric imp, Spark core) explicitly state that they cannot connect to a captive portal. I've seen other higher-level code for automatically interacting with a captive portal but I have not found a solution that allows an embedded wifi device (like the CC3000) to automatically accept terms on a captive portal.

Has anyone seen or built a custom wifi stack for something like the CC3000 that can recognize and interact with a captive portal? is there another embedded wifi solution (xbee wifi maybe?) that has had success in this area?

Answer 1

After considering all options, I believe we are going to go embed the behavour into the SparkCore firmware and insert a captive portal check in the wifi connection code.

spark_utilities.cpp line 807 (Internet_Test function)https://github.com/spark/firmware/blob/master/src/spark_utilities.cpp#L807