Class NonLoginAuthenticator

java.lang.Object
org.apache.catalina.util.LifecycleBase
org.apache.catalina.util.LifecycleMBeanBase
org.apache.catalina.valves.ValveBase
org.apache.catalina.authenticator.AuthenticatorBase
org.apache.catalina.authenticator.NonLoginAuthenticator
All Implemented Interfaces:
RegistrationListener, MBeanRegistration, Authenticator, Contained, JmxEnabled, Lifecycle, Valve
public final class NonLoginAuthenticator extends AuthenticatorBase
An Authenticator and Valve implementation that checks only security constraints not involving user authentication.
Author:
Craig R. McClanahan

  • Constructor Details

    • NonLoginAuthenticator

      public NonLoginAuthenticator()

  • Method Details

    • doAuthenticate

      protected boolean doAuthenticate(Request request, HttpServletResponse response) throws IOException

      Authenticate the user making this request, based on the fact that no login-config has been defined for the container.

      This implementation means "login the user even though there is no self-contained way to establish a security Principal for that user".

      This method is called by the AuthenticatorBase super class to establish a Principal for the user BEFORE the container security constraints are examined, i.e. it is not yet known whether the user will eventually be permitted to access the requested resource. Therefore, it is necessary to always return true to indicate the user has not failed authentication.

      There are two cases:

      • without SingleSignon: a Session instance does not yet exist and there is no auth-method to authenticate the user, so leave Request's Principal as null. Note: AuthenticatorBase will later examine the security constraints to determine whether the resource is accessible by a user without a security Principal and Role (i.e. unauthenticated).
      • with SingleSignon: if the user has already authenticated via another container (using its own login configuration), then associate this Session with the SSOEntry so it inherits the already-established security Principal and associated Roles. Note: This particular session will become a full member of the SingleSignOnEntry Session collection and so will potentially keep the SSOE "alive", even if all the other properly authenticated Sessions expire first... until it expires too.
      Specified by:
      doAuthenticate in class AuthenticatorBase
      Parameters:
      request - Request we are processing
      response - Response we are creating
      Returns:
      boolean to indicate whether the user is authenticated
      Throws:
      IOException - if an input/output error occurs

    • getAuthMethod

      protected String getAuthMethod()
      Description copied from class: AuthenticatorBase
      Return the authentication method, which is vendor-specific and not defined by HttpServletRequest.
      Specified by:
      getAuthMethod in class AuthenticatorBase
      Returns:
      the authentication method, which is vendor-specific and not defined by HttpServletRequest.