/// <summary>
/// Checks URL specified at CloudVeil.CompileSecrets.ConnectivityCheck + "/ncsi.txt" for connectivity.
/// </summary>
/// <remarks>
/// Windows 7 captive portal detection isn't perfect. Somehow in my testing, it got disabled on my test network.
///
/// Granted, a restart may fix it, but we're not going to ask our customers to do that in order to get their computer working on a captive portal.
/// </remarks>
/// <returns>true if captive portal.</returns>
private CaptivePortalDetected checkCaptivePortalState()
{
if (NetworkStatus.Default.BehindIPv4CaptivePortal || NetworkStatus.Default.BehindIPv6CaptivePortal)
{
return(CaptivePortalDetected.Yes);
}
// "Oh, you want to depend on Windows captive portal detection? Haha nope!" -- Boingo Wi-FI
// Some captive portals indeed let msftncsi.com through and thoroughly break windows captive portal detection.
// BWI airport wifi is one of them.
switch (ConnectivityCheck.IsAccessible())
{
case ConnectivityCheck.Accessible.No: return(CaptivePortalDetected.NoResponseReturned);
case ConnectivityCheck.Accessible.Yes: return(CaptivePortalDetected.No);
case ConnectivityCheck.Accessible.UnexpectedResponse: return(CaptivePortalDetected.Yes);
default: return(CaptivePortalDetected.No);
}
}
static int connectivityCheck()
{
return((int)ConnectivityCheck.IsAccessible());
}