/**
    * Copyright 2005-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.kim.client.acegi;
  
  import org.acegisecurity.Authentication;
  import org.acegisecurity.AuthenticationException;
  import org.acegisecurity.GrantedAuthority;
  import org.acegisecurity.GrantedAuthorityImpl;
  import org.acegisecurity.providers.AuthenticationProvider;
  import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /**
   * This is the out of box authentication method used by rice.  It authenticates any username/password pairs that match  
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class KualiTestAuthenticationProvider implements AuthenticationProvider {
  
  	public Authentication authenticate(Authentication authentication)
          throws AuthenticationException {
  
          if (authentication.getPrincipal().equals(authentication.getCredentials())) {
          	Authentication auth = authenticateNow(authentication);
          	return auth;
          } else {
          	return authentication;
          }
      }
  
      private UsernamePasswordAuthenticationToken authenticateNow(Authentication authentication) throws AuthenticationException {
      	return new UsernamePasswordAuthenticationToken(authentication.getPrincipal(), authentication.getCredentials(), new GrantedAuthority[] {new GrantedAuthorityImpl("ROLE_KUALI_USER")});
      }
      
      public boolean supports(Class authentication) {
          if (UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication)) {
              return true;
          } else {
              return false;
          }
      }
  }