/* ======================================================================
   Parts Copyright 2006 University of Leeds, Oxford University, University of the Highlands and Islands.

   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.bodington.servlet;

import org.apache.log4j.Logger;

import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

import org.bodington.database.PrimaryKey;
import org.bodington.server.realm.*;
import org.bodington.server.BuildingContext;

public class BuildingServletConfig implements ServletConfig
	{
    private static Logger log = Logger.getLogger(BuildingServletConfig.class);
    
	private ServletConfig config;
	
	private String url_character_encoding, container_url_character_encoding; 
	private boolean container_url_plus=true;
	private	boolean container_url_percent=true;

	private PrimaryKey anonuser_id = null;
	private User anonuser = null;
	
	public BuildingServletConfig( ServletConfig c )
		 throws ServletException
		{
		config=c;

		url_character_encoding=BuildingContext.getProperty( "webpublish.url.charencoding", "bodington_underscore" );
		container_url_character_encoding=BuildingContext.getProperty( "container.extrapathencoded.encoding", "UTF-8" );

		
		String plus = BuildingContext.getProperty( "container.extrapathencoded.plus" );
		if ( plus != null && plus.equalsIgnoreCase( "false" ) )
		    container_url_plus = false;
		else
		    container_url_plus = true;
		
		String percent = BuildingContext.getProperty( "container.extrapathencoded.percent" );
		if ( percent != null && percent.equalsIgnoreCase( "false" ) )
		    container_url_percent = false;
		else
		    container_url_percent = true;
		
		
		try
		{
		    Group anon_group = Group.findGroupByName("anonymous");
		    Enumeration enumeration = User.findUserPrimaryKeys( anon_group.whereMembers(), "name" );
		    if ( enumeration.hasMoreElements() )
		    {
			anonuser_id = (PrimaryKey)enumeration.nextElement();
			anonuser = User.findUser( anonuser_id );
		    }
		}
		catch ( Exception e )
		{
		    anonuser_id=null;
		    log.error( e.getMessage(), e );
		    throw new ServletException( "Unable to initialise servlet - can't find the anonymous user record." );
		}
		
		log.debug( "Servlet configuration." );
		}

		
	public PrimaryKey getAnonymousUserId()
	{
	    return anonuser_id;
	}
		
	public User getAnonymousUser()
	{
	    return anonuser;
	}
		
	public boolean isContainerEncodingPlus()
	{
	    return container_url_plus;
	}
		
	public boolean isContainerEncodingPercent()
	{
	    return container_url_percent;
	}
		
	public String getUrlCharacterEncoding()
	    {
	    return url_character_encoding;
	    }
	public String getContainerUrlCharacterEncoding()
	    {
	    return container_url_character_encoding;
	    }
	    
	public java.lang.String getServletName()
	    {
		return config.getServletName();
	    }
	    
	public java.lang.String getInitParameter(java.lang.String str)
	    {
		return config.getInitParameter( str );
	    }
	    
	public java.util.Enumeration getInitParameterNames()
	    {
		return config.getInitParameterNames();
	    }
	    
	public javax.servlet.ServletContext getServletContext()
	    {
		return config.getServletContext();
	    }
	    
	}