rule.java

轻量级Http代理服务器

/*
 * jRevProxy, an opensource Java reverse proxy server
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
  
 * This program 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 General Public License for more details.
  
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * $Id: Rule.java,v 2.6 2003/04/23 21:16:53 fnoe Exp $ 
 */

package cx.noe.jrevproxy;

import java.util.Vector;
import java.util.Enumeration;
import java.net.URL;

/**
 * Rule
 *
 * @author  <a href="mailto:[e-mail]">Frederik Noe</a>
 * @version <tt>$Revision: 2.6 $</tt>
 */
public class Rule {
    private String name = null;
    private Vector users = null;
    private String vdir = null;
    private URL junction = null;
    
    /** Creates a new instance of Rule */
    public Rule() {
        users = new Vector();
    }
    
    public void addUser(String subjectdn) {
        users.addElement(subjectdn);
    }
    
    public void setVirtualDir(String vdir) {
        this.vdir = vdir;
    }
    
    public void setJunction(String junction) throws Exception {
        try {
             URL tmp = new URL(junction);
             int port = (tmp.getPort() == -1)?80:tmp.getPort();
             this.junction = new URL(tmp.getProtocol(),tmp.getHost(),port,tmp.getFile());
        }
        catch(java.net.MalformedURLException e) {
            throw new Exception("Junction value does not have the right syntax");
        }
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public String toString() {
        String newline = System.getProperty( "line.separator" );
        StringBuffer buf = new StringBuffer();
        
        buf.append("Name: ").append(name).append(newline);
        buf.append("Virtual Directory: ").append(vdir).append(newline);
        buf.append("Junction: ").append(junction).append(newline);
        buf.append( "--Users--" ).append(newline);
        for( int i=0; i<users.size(); i++ ){
            buf.append("\t").append(users.elementAt(i)).append(newline);
        }
        
        return buf.toString();
    }
    
    public boolean isApplicable(String virtualdir) {
        if(virtualdir == null || vdir == null)
            return false;
        
        if(vdir.compareToIgnoreCase(virtualdir) == 0)
            return true;
        return false;
    }
    
    public boolean isAuthorized(String subjectdn){
        
        Enumeration enum = users.elements();
        String user = null;
        
        while(enum.hasMoreElements()) {
            user = (String) enum.nextElement();
            
            if(user.compareToIgnoreCase(subjectdn) == 0)
                return true;
        }
        return false;
    }
    
    public URL getJunction() {
        return junction;
    }
    
    public String getName() {
        return name;
    }
}