/// <summary>
/// The second item in the returned tuple will be (1) null if impersonation is not taking place, (2) a tuple with a null user if impersonation is taking
/// place with an impersonator who doesn't correspond to a user, or (3) a tuple containing the impersonator.
/// </summary>
internal static Tuple <User, Tuple <User> > GetUserAndImpersonatorFromRequest()
{
var userLazy = new Func <User>[]
{
() => {
var cookie = CookieStatics.GetCookie(FormsAuthStatics.FormsAuthCookieName);
if (cookie == null)
{
return(null);
}
var ticket = FormsAuthStatics.GetFormsAuthTicket(cookie);
return(ticket != null?GetUser(int.Parse(ticket.Name), false) : null);
},
() => {
var identity = HttpContext.Current.User.Identity;
return(identity.IsAuthenticated && identity.AuthenticationType == CertificateAuthenticationModule.CertificateAuthenticationType
? GetUser(identity.Name)
: null);
}
}.Select(i => new Lazy <User>(i)).FirstOrDefault(i => i.Value != null);
var user = userLazy != null ? userLazy.Value : null;
if ((user != null && user.Role.CanManageUsers) || !AppTools.IsLiveInstallation)
{
var cookie = CookieStatics.GetCookie(UserImpersonationStatics.CookieName);
if (cookie != null)
{
return(Tuple.Create(cookie.Value.Any() ? GetUser(int.Parse(cookie.Value), false) : null, Tuple.Create(user)));
}
}
return(Tuple.Create(user, (Tuple <User>)null));
}
// NOTE: It seems like we could cache a collection of Roles and have users just take a roleId, and look up the object ourselves. This would save the apps
// creating the role object, and all save the extra database query. But where would we do this?
/// <summary>
/// Standard Library use only.
/// </summary>
public static IEnumerable <User> GetUsers()
{
if (SystemProvider is FormsAuthCapableUserManagementProvider)
{
return(FormsAuthStatics.GetUsers());
}
if (SystemProvider is ExternalAuthUserManagementProvider)
{
return((SystemProvider as ExternalAuthUserManagementProvider).GetUsers());
}
throw new ApplicationException("Unknown user management setup type.");
}
/// <summary>
/// Standard Library use only.
/// </summary>
public static User GetUser(int userId, bool ensureUserExists)
{
if (SystemProvider is FormsAuthCapableUserManagementProvider)
{
return(FormsAuthStatics.GetUser(userId, ensureUserExists));
}
if (SystemProvider is ExternalAuthUserManagementProvider)
{
var user = (SystemProvider as ExternalAuthUserManagementProvider).GetUser(userId);
if (user == null && ensureUserExists)
{
throw new ApplicationException("A user with an ID of {0} does not exist.".FormatWith(userId));
}
return(user);
}
throw new ApplicationException("Unknown user management setup type.");
}
internal static void Init()
{
provider = ConfigurationStatics.GetSystemLibraryProvider(providerName) as SystemUserManagementProvider;
FormsAuthStatics.Init(() => SystemProvider);
}