/*
    * Copyright 2000-2004 The Apache Software Foundation.
    * 
    * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
    * 
   * 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.apache.jetspeed.services.security.nosecurity;
  
  import java.util.Iterator;
  import java.util.Vector;
  
  // Jetspeed Security
  import org.apache.jetspeed.services.security.RoleManagement;
  
  import org.apache.jetspeed.om.security.Role;
  
  import org.apache.jetspeed.services.JetspeedSecurity;
  import org.apache.jetspeed.om.security.BaseJetspeedRole;
  
  // Jetspeed Security Exceptions
  import org.apache.jetspeed.services.security.JetspeedSecurityException;
  
  // Turbine
  import org.apache.turbine.services.TurbineBaseService;
  
  /***
   * <p> The <code>NoRoleManagement</code> class is a Jetspeed
   * security provider, implementing the <code>RoleManagement</code> interface.
   * It provides no role management - only the "user" role exists for any user, no roles are
   * listed or saved, any role requested is supplied with a temp. Role object.
   *
   * @author <a href="mailto:ggolden@apache.org">Glenn R. Golden</a>
   * @version $Id: NoRoleManagement.java,v 1.3 2004/02/23 03:53:24 jford Exp $
   */
  public class NoRoleManagement
      extends TurbineBaseService
     implements RoleManagement
  {
      /***
       * Retrieves all <code>Role</code>s for a given username principal.
       *
       * The security service may optionally check the current user context
       * to determine if the requestor has permission to perform this action.
       *
       * @param username a user principal identity to be retrieved.
       * @return Iterator over all roles associated to the user principal.
       * @exception RoleException when the security provider has a general failure.
       * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
       */
      public Iterator getRoles(String username)
          throws JetspeedSecurityException
      {
          // give everyone the "user" role
          Vector v = new Vector(1);
          BaseJetspeedRole r = new BaseJetspeedRole();
          //r.setNew(false);
          r.setName(JetspeedSecurity.JETSPEED_ROLE_USER);
          r.setId(JetspeedSecurity.JETSPEED_ROLE_USER);
          v.add(r);
          return v.iterator();
      }
  
      /***
       * Retrieves all <code>Role</code>s.
       *
       * The security service may optionally check the current user context
       * to determine if the requestor has permission to perform this action.
       *
       * @return Iterator over all roles.
       * @exception RoleException when the security provider has a general failure.
       * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
       */
      public Iterator getRoles()
          throws JetspeedSecurityException
      {
          return new Vector().iterator();
      }
  
      /***
       * Adds a <code>Role</code> into permanent storage.
       *
       * The security service may optionally check the current user context
       * to determine if the requestor has permission to perform this action.
       *
       * @exception RoleException when the security provider has a general failure.
       * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
       */
      public void addRole(Role role)
          throws JetspeedSecurityException
     {
     }
 
     /***
      * Saves a <code>Role</code> into permanent storage.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void saveRole(Role role)
         throws JetspeedSecurityException
     {
     }
 
     /***
      * Removes a <code>Role</code> from the permanent store.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @param rolename the principal identity of the role to be retrieved.
      * @exception RoleException when the security provider has a general failure.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void removeRole(String rolename)
         throws JetspeedSecurityException
     {
     }
 
     /***
      * Grants a role to a user.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure retrieving roles.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void grantRole(String username, String rolename)
         throws JetspeedSecurityException
     {
     }
 
 	public void grantRole(String username, String rolename, String groupname)
 		throws JetspeedSecurityException
 	{
 	}
 
     /***
      * Grants a role to a user for a specific group.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure retrieving roles.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void grantGroupRole(String username, String groupname, String rolename)
         throws JetspeedSecurityException
     {
     }
 
     /***
      * Revokes a role from a user.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure retrieving roles.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void revokeRole(String username, String rolename)
         throws JetspeedSecurityException
     {
     }
 
     /***
      * Revokes a role from a user for a specific group.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure retrieving roles.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public void revokeRole(String username, String rolename, String groupname)
         throws JetspeedSecurityException
     {
     }
 
     /***
      * Checks for the relationship of user has a role. Returns true when the user has the given role.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @exception RoleException when the security provider has a general failure retrieving roles.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public boolean hasRole(String username, String rolename)
         throws JetspeedSecurityException
     {
         // give everyone the "user" role
         if (rolename.equals(JetspeedSecurity.JETSPEED_ROLE_USER)) return true;
 
         return false;
     }
 
 	public boolean hasRole(String username, String rolename, String groupname)
 		throws JetspeedSecurityException
 	{
 		// give everyone the "user" role
 		if (rolename.equals(JetspeedSecurity.JETSPEED_ROLE_USER) &&	
 			groupname.equals(JetspeedSecurity.JETSPEED_GROUP)) return true;
 
 		return false;
 	}
 
     /***
      * Retrieves a single <code>Role</code> for a given rolename principal.
      *
      * The security service may optionally check the current user context
      * to determine if the requestor has permission to perform this action.
      *
      * @param rolename a role principal identity to be retrieved.
      * @return Role the role record retrieved.
      * @exception RoleException when the security provider has a general failure.
      * @exception InsufficientPrivilegeException when the requestor is denied due to insufficient privilege
      */
     public Role getRole(String rolename)
         throws JetspeedSecurityException
     {
         BaseJetspeedRole r = new BaseJetspeedRole();
         //r.setNew(false);
         r.setName(rolename);
         r.setId(rolename);
         return r;
     }
 }