krausefx / wifiauth

Because connecting to WiFis is still an unsolved problem 😂

WiFiAuth

Because connecting to WiFI networks is still an unsolved problem

Checking if a WiFi network needs the user to login on some kind of login page is the responsibility of the operating system. However iOS is still having a hard time detecting most WiFis, resulting in apps to not work. Unless you know you have to open Safari and access a non-SSL encrypted website like http://neverssl.com, the user is confused, and doesn't know why your app is "broken".

The only app I've ever seen do this right is Facebook Messenger: They show a banner on top of the message list, letting you know the currently connected network needs some kind of user-interaction. Tapping that banner would open up an in-app browser.

This project is just a proof of concept I hacked together in less than an hour.

However I do believe it might be worth finishing that SDK and make it production ready.

Turns out, WiFi auth flows are very complicated. However from an app's perspective, sending an unencrypted GET request, and checking if there is a redirect to a login page should be enough to see if your app has access to the internet.

Update: Turns out, Ross Butler already built this with Connectivity

The current implementation uses code from Reachability, using <SystemConfiguration/SystemConfiguration.h>

SCNetworkReachabilityRef reachabilityRef = SCNetworkReachabilityCreateWithAddress(kCFAllocatorDefault, (const struct sockaddr*)hostAddress);

if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags))
{
    return ((flags & kSCNetworkReachabilityFlagsConnectionRequired) &&
            (flags & kSCNetworkReachabilityFlagsInterventionRequired));
}

return NO;

wifiauth's Issues

Browser: Chrome & Safari

Browser: Chrome & Safari

Airport: Many, but I have specifically seen this at AUS, BNA, IAD, and RDU.

Approximate play time before issue: N/A

Issue Description

Aircraft will maintain the speeds assigned by the STAR while on the STAR, but once they cross the final speed restricted fix, they return to 250 kts. For example, the TAQLE1 in RDU terminates with crossing ESELL at A60|S210, then a track of 267°. The aircraft will slow down to cross ESELL at 210kt but then reaccelerate to 250kt.

Originally posted by @MichaelDMcCracken in openscope/openscope#1905

Polling is bad

This code polls once a second for the lifetime of the app. This isn't a good idea for battery life, and polling is almost never a good design. It's not necessary, since SCNetworkReachability has an observer API that lets you get callbacks when something changes.