public virtual void DidReceiveChallenge(NSUrlSession session, NSUrlAuthenticationChallenge challenge, Action <NSUrlSessionAuthChallengeDisposition, NSUrlCredential> completionHandler)
{
if (challenge.PreviousFailureCount == 2)
{
//TODO: update UserCreds
}
else if (challenge.PreviousFailureCount > 2)
{
XamarinAlertController.showAlertViewForController(this, SDKErrorLoginFailedTitle, SDKErrorLoginFailedMessage);
completionHandler(NSUrlSessionAuthChallengeDisposition.CancelAuthenticationChallenge, null);
}
else
{
if (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodServerTrust")
{
completionHandler(NSUrlSessionAuthChallengeDisposition.PerformDefaultHandling, null);
}
else if ((challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodHTTPBasic") || (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodNTLM") || (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodClientCertificate"))
{
handleChallangeforSession(challenge, completionHandler);
}
else
{
completionHandler(NSUrlSessionAuthChallengeDisposition.CancelAuthenticationChallenge, null);
XamarinAlertController.showAlertViewForController(this, SDKErrorAuthNotSupportedTitle, SDKErrorAuthNotSupportedMessage);
}
}
}
public virtual void WillSendRequestForAuthenticationChallenge(NSUrlConnection connection, NSUrlAuthenticationChallenge challenge)
{
if (challenge.PreviousFailureCount == 2)
{
//TODO: update cred
}
else if (challenge.PreviousFailureCount > 2)
{
//display alert
XamarinAlertController.showAlertViewForController(this, SDKErrorLoginFailedTitle, SDKErrorLoginFailedMessage);
}
else
{
//handle challenges
if (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodServerTrust")
{
var cred = new NSUrlCredential(challenge.ProtectionSpace.ServerSecTrust);
challenge.Sender.UseCredential(cred, challenge);
}
else if ((challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodHTTPBasic") || (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodNTLM") || (challenge.ProtectionSpace.AuthenticationMethod == "NSURLAuthenticationMethodClientCertificate"))
{
handleChallengeForConnection(challenge);
}
else
{
Console.WriteLine("AWXamarin Authentication challenge is not supported by the SDK");
XamarinAlertController.showAlertViewForController(this, SDKErrorAuthNotSupportedTitle, SDKErrorAuthNotSupportedMessage);
}
}
}
public void createCredAlertForChallenge(NSUrlAuthenticationChallenge challenge)
{
InvokeOnMainThread(() =>
{
var alertController = UIAlertController.Create("Login", challenge.ProtectionSpace.Realm, UIAlertControllerStyle.Alert);
UIAlertAction loginAction = UIAlertAction.Create("Submit", UIAlertActionStyle.Default, (UIAlertAction obj) =>
{
string username = alertController.TextFields[0].Text;
string password = alertController.TextFields[1].Text;
if (username != null && password != null)
{
useCredentialsForLogin(username, password);
}
else
{
Console.WriteLine("Cant create creds");
}
});
alertController.AddAction(loginAction);
alertController.AddAction(UIAlertAction.Create("Cancel", UIAlertActionStyle.Cancel, (UIAlertAction obj) =>
{
completionHandler(NSUrlSessionAuthChallengeDisposition.CancelAuthenticationChallenge, null);
}));
alertController.AddTextField(textField =>
{
textField.Placeholder = "Username";
textField.ClearButtonMode = UITextFieldViewMode.WhileEditing;
});
alertController.AddTextField(textField =>
{
textField.Placeholder = "Password";
textField.ClearButtonMode = UITextFieldViewMode.WhileEditing;
textField.SecureTextEntry = true;
});
XamarinAlertController.showAlertOnTopViewController(alertController);
});
}
public static void showAlertOnTopViewController(UIAlertController alertController)
{
UIViewController vc = XamarinAlertController.topViewController();
vc.PresentViewController(alertController, true, null);
}
