/// <summary>
/// Creates a new instance of an identity, but impersonated by the specified user.
/// </summary>
/// <param name="userID">The unique identity of the user to impersonate.</param>
/// <param name="name">The name of the user to impersonate.</param>
/// <param name="impersonator">The impersonator's authenticated identity.</param>
public UserIdentity(Guid userID, string name, UserIdentity impersonator)
{
while (impersonator.ImpersonatorIdentity != null) // should be max 1 level deep
impersonator = impersonator.ImpersonatorIdentity; //don't impersonate multiple levels deep.
if (impersonator == null || !impersonator.IsAuthenticated || impersonator.Ticket == null ||
impersonator.Ticket.UserSession == null || impersonator.Ticket.UserSession.ExpirationDate < DateTime.UtcNow)
throw new ApplicationException("You cannot impersonate at this time, because your session has ended.");
Ticket = new AuthenticationHistory
{
CreatedDate = DateTime.Now,
IPAddress = impersonator.Ticket.IPAddress,
IsAuthenticated = impersonator.Ticket.IsAuthenticated,
UserName = name,
SessionID = impersonator.Ticket.SessionID,
UserSession =
new UserSession
{
CreatedDate = DateTime.Now,
ExpirationDate = impersonator.Ticket.UserSession.ExpirationDate,
RenewalToken = impersonator.Ticket.UserSession.RenewalToken,
RenewedDate = impersonator.Ticket.UserSession.RenewedDate,
SessionID = impersonator.Ticket.SessionID,
UserID = userID
}
};
ImpersonatorIdentity = impersonator;
}
/// <summary>
/// Creates a principal from another identity
/// </summary>
public UserPrincipal(UserIdentity identity)
{
Identity = identity;
}
/// <summary>
/// Creates an anonymous principal
/// </summary>
public UserPrincipal()
{
Identity = new UserIdentity();
}