Authenticate users

To authenticate a user you must perform the following:

  1. Acquire the username and the password.
    Make the user input his username and password.
  2. Authenticate the user.
    To authenticate the user, call the AuthenticateUser static method of the SecurityManager and pass the required arguments. The method returns a enumeration value of type UserLoggingReason. The enumeration has the following values:
    • Success
      The user is successfully authenticated.
    • UserLimitReached
      The limit of maximum simultaneous logged in users is reached.
    • UserNotFound
      User cannot be found in any provider.
    • UserLoggedFromDifferentIp
      User is already logged in from different IP address.
    • SessionExpired
      Indicates that the user’s session has expired.
    • UserLoggedOff
      The user have the authentication cookie, but is not logged in the database or is already logged out.
    • UserLoggedFromDifferentComputer
      More than one user are trying to login from the same IP but from different computers.
    • Unknown
      The username or the password is invalid.
    • NeedAdminRights
      The user is not administrator to logout other users.
    • UserAlreadyLoggedIn
      User already is logged in. You need to ask the user to logout someone or himself.
    • UserRevoked
      User was revoked. The reason is that the user was deleted or user rights and role membership was changed.
    The AuthenticateUser method accepts the following parameters:
    • membershipProviderName
      Represents the name of the membership provider for the user. To specify the default provider pass null.
    • username
      Represents the username of the user.
    • password
      Represents the password of the user.
    • persistent
      Specify whether the user to be remembered on this computer.

      NOTE: You can wrap these parameters inside an instance of the Credentials class.

Here is a code example:

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