pathstag.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.vfs.tags;

import java.util.StringTokenizer;

import javax.servlet.ServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.TagSupport;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.taglib.TagUtils;

import com.sslexplorer.vfs.VFSPath;
import com.sslexplorer.vfs.forms.FileSystemForm;

/**
 * <p>
 * A custom tag which checks to see if the contents of the tag can be deleted.
 * 
 * @author James D Robinson <[e-mail]>
 * 
 * @version $Revision$
 */
public class PathsTag extends BodyTagSupport {
    final static Log log = LogFactory.getLog(PathsTag.class);
    
    private String paths;

    public int doStartTag() throws JspException {

    	FileSystemForm fsf = (FileSystemForm) pageContext.getRequest().getAttribute("fileSystemForm");
    	ServletRequest sr = this.pageContext.getRequest();
        StringBuffer results = new StringBuffer();
        results.append("<div class=\"path\"><span>");
        StringTokenizer tok = new StringTokenizer(fsf.getPath(), "/");
        
        String currentPath = tok.nextToken(); // Important: skip the file type
        while(tok.hasMoreTokens()) {
        	String element = tok.nextToken();
        	currentPath += "/" + element;
            results.append("<a href=\"fileSystem.do?actionTarget=list&path=" + currentPath + "\">" + element +"</a>&nbsp/&nbsp");
		}
        results.append(" </span></div>");
        paths = results.toString();
        return (SKIP_BODY);
    }

    /* (non-Javadoc)
     * @see javax.servlet.jsp.tagext.BodyTagSupport#doEndTag()
     */
    public int doEndTag() throws JspException {
        TagUtils.getInstance().write(this.pageContext, paths);        
        return EVAL_PAGE;
    }

}