[HttpPost]
public ActionResult LogOn(LogOnModel model, string returnUrl)
{
if (ModelState.IsValid)
{
if (MembershipService.ValidateUser(model.UserName,
model.Password))
{
FormsService.SignIn(model.UserName, model.RememberMe);
if (HttpRuntime.Cache["LoggedInUsers"]
!= null) //if the list exists, add this user to it
{
//get the list of logged in users from the cache
List loggedInUsers =
(List)HttpRuntime.Cache["LoggedInUsers"];
//add this user to the list
loggedInUsers.Add(model.UserName);
//add the list back into the cache
HttpRuntime.Cache["LoggedInUsers"]
= loggedInUsers;
}
else //the list does not exist so create it
{
//create a new list
List loggedInUsers = new List();
//add this user to the list
loggedInUsers.Add(model.UserName);
//add the list into the cache
HttpRuntime.Cache["LoggedInUsers"]
= loggedInUsers;
}
if (!String.IsNullOrEmpty(returnUrl))
{
return
Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
ModelState.AddModelError("", "The user name or password provided is
incorrect.");
}
}
// If we
got this far, something failed, redisplay form
return View(model);
}
public ActionResult
LogOff()
{
string username = User.Identity.Name; //get the users username who is logged in
if (HttpRuntime.Cache["LoggedInUsers"] != null)//check if the list has been
created
{
//the
list is not null so we retrieve it from the cache
List loggedInUsers = (List)HttpRuntime.Cache["LoggedInUsers"];
if (loggedInUsers.Contains(username))//if the user is in the list
{
//then remove them
loggedInUsers.Remove(username);
}
//
else do nothing
}