package net.sourceforge.blogentis.modules.screens;
   
   //-----------------------------------------------------------------------
   //Blogentis - a blog publishing platform.
   //Copyright (C) 2004 Tassos Bassoukos <abassouk@gmail.com>
   //
   //This library is free software; you can redistribute it and/or
   //modify it under the terms of the GNU Lesser General Public
   //License as published by the Free Software Foundation; either
  //version 2.1 of the License, or (at your option) any later version.
  //
  //This library is distributed in the hope that it will be useful,
  //but WITHOUT ANY WARRANTY; without even the implied warranty of
  //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  //Lesser General Public License for more details.
  //
  //You should have received a copy of the GNU Lesser General Public
  //License along with this library; if not, write to the Free Software
  //Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  //-----------------------------------------------------------------------
  //
  //$Id: BlogUsers.java,v 1.2 2004/10/31 07:16:22 tassos Exp $
  //
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import net.sourceforge.blogentis.om.Blog;
  import net.sourceforge.blogentis.turbine.BlogParameterParser;
  import net.sourceforge.blogentis.turbine.SecureBlogScreen;
  import net.sourceforge.blogentis.utils.BlogConstants;
  
  import org.apache.ecs.html.Option;
  import org.apache.ecs.html.Select;
  import org.apache.torque.util.Criteria;
  import org.apache.turbine.om.security.Group;
  import org.apache.turbine.om.security.Role;
  import org.apache.turbine.om.security.User;
  import org.apache.turbine.om.security.peer.RolePeer;
  import org.apache.turbine.services.security.TurbineSecurity;
  import org.apache.turbine.util.RunData;
  import org.apache.turbine.util.security.AccessControlList;
  import org.apache.turbine.util.security.DataBackendException;
  import org.apache.turbine.util.security.RoleSet;
  import org.apache.turbine.util.security.UnknownEntityException;
  import org.apache.velocity.context.Context;
  
  public class BlogUsers extends SecureBlogScreen {
      public static class UserRole {
          public User user;
  
          public Role role;
  
          UserRole(User user, Role role) {
              this.user = user;
              this.role = role;
          }
  
          public Role getRole() {
              return role;
          }
  
          public User getUser() {
              return user;
          }
      }
  
      public static abstract class ItemList {
          protected List list = null;
  
          protected String selected = null;
  
          private String name = "select";
  
          public ItemList(List items) {
              list = items;
          }
  
          public String toString() {
              Select s = new Select();
              s.setName(name);
              for(Iterator i = list.iterator(); i.hasNext();) {
                  Option o = new Option();
                  Object ob = i.next();
                  doItem(o, ob);
                  s.addElement(o);
              }
              return s.toString();
          }
  
          public abstract void doItem(Option o, Object ob);
  
          public String getName() {
              return name;
          }
  
          public ItemList setName(String string) {
              name = string;
             return this;
         }
     }
 
     public static class RoleList extends ItemList {
         public RoleList(List roles) {
             super(roles);
         }
 
         public ItemList setRole(String name) {
             this.selected = name;
             return this;
         }
 
         public ItemList setRole(Role role) {
             this.selected = role.getName();
             return this;
         }
 
         public void doItem(Option o, Object ob) {
             Role r = (Role)ob;
             o.setValue(r.getName());
             o.addElement(r.getName());
             if (r.getName().equals(selected))
                 o.setSelected(true);
         }
     }
 
     public static class UserList extends ItemList {
         public UserList(List users) {
             super(users);
         }
 
         public ItemList setUser(String name) {
             this.selected = name;
             return this;
         }
 
         public ItemList setUser(User user) {
             this.selected = user.getName();
             return this;
         }
 
         public void doItem(Option o, Object ob) {
             User u = (User)ob;
             o.setValue(u.getName());
             o.addElement(u.getFirstName() + " " + u.getLastName());
             if (u.getName().equals(selected))
                 o.setSelected(true);
         }
     }
 
     private ItemList getRoleList()
             throws DataBackendException {
         RoleSet set = TurbineSecurity.getRoles(new Criteria().add(
                 RolePeer.ROLE_ID, 0, Criteria.GREATER_THAN));
         return new RoleList(new ArrayList(set.getSet()));
     }
 
     private List getUserRoles(String blog)
             throws DataBackendException, UnknownEntityException {
         List l = new ArrayList();
         Group g = TurbineSecurity.getGroupByName(blog);
         Iterator i = TurbineSecurity.getUserList(new Criteria()).iterator();
         for(; i.hasNext();) {
             User u = (User)i.next();
             AccessControlList acl = TurbineSecurity.getACL(u);
             RoleSet rs = acl.getRoles(g);
             for(Iterator r = rs.iterator(); r.hasNext();) {
                 l.add(new UserRole(u, (Role)r.next()));
             }
         }
         return l;
     }
 
     protected void doBuildTemplate(RunData data, Context context)
             throws Exception {
         super.doBuildTemplate(data, context);
         BlogParameterParser pp = (BlogParameterParser)data.getParameters();
         Blog blog = pp.getBlog();
         context.put("userGroupRoleList", getUserRoles(blog.getName()));
         context.put("roles", getRoleList());
         context.put("users", new UserList(
             TurbineSecurity.getUserList(new Criteria())));
     }
 
     protected String[] getPermissions() {
         return new String[]{BlogConstants.PERM_ADMIN_BLOG};
     }
 }