/*
 * $Header: /home/cvs/jakarta-tomcat-catalina/webapps/manager/WEB-INF/classes/org/apache/catalina/manager/ManagerServlet.java,v 1.13 2003/11/29 08:33:48 remm Exp $
 * $Revision: 1.13 $
 * $Date: 2003/11/29 08:33:48 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */


package org.apache.catalina.manager;


import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Deployer;


/**
 * Servlet that extends {@link ManagerServlet} allows administrator
 * to choose any virtual host on the Tomcat which you want to start or deploy
 * (Only 'localhost' can be managed by <code>ManagerServlet</code>).
 * All commnads are same as in <code>ManagerServlet</code>.
 * To choose the virtual host which you want to manage, 'host' parameter
 * is required in your URL. (e.g. /list?host=www.abc.com)
 * If the parameter is not specified, 'localhost' is assumed.
 * Normally, this function will be protected by a security constraint
 * in the web application deployment descriptor. Only 'admin' role
 * can access it by default.
 *
 * @author TANAKA Yoshihiro
 * @version $Revision: 1.13 $ $Date: 2003/11/29 08:33:48 $
 * @see MultihostHTMLManagerServlet
 */

public class MultihostManagerServlet extends ManagerServlet {


    /**
     * Process a GET request for the specified resource
     * after finding the appropriate deployer of the requested virtual host.
     * When unknown virtual host is requested, ignore it and
     * display an error message.
     *
     * @param request The servlet request we are processing
     * @param response The servlet response we are creating
     *
     * @exception IOException if an input/output error occurs
     * @exception ServletException if a servlet-specified error occurs
     */
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException {
        // Find the deployer of the requested virtual host
        String host = request.getParameter(VIRTUAL_HOST);
        Deployer deployer = getDeployer(host);
        
        // Unknown virtual host is requested
        if (deployer == null) {
            // Prepare our output writer to generate the response message
            response.setContentType("text/html; charset=" + Constants.CHARSET);
            PrintWriter writer = response.getWriter();
            writer.println(sm.getString("managerServlet.unknownHost", host));
            writer.close();
        } else {
            doGet(deployer, request, response);
        }
    }


    /**
     * Process a PUT request for the specified resource
     * after finding the appropriate deployer of the requested virtual host.
     * When unknown virtual host is requested, ignore it and
     * display an error message.
     *
     * @param request The servlet request we are processing
     * @param response The servlet response we are creating
     *
     * @exception IOException if an input/output error occurs
     * @exception ServletException if a servlet-specified error occurs
     */
    public void doPut(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException {
        // Find the deployer of the requested virtual host
        String host = request.getParameter(VIRTUAL_HOST);
        Deployer deployer = getDeployer(host);
        
        // Unknown virtual host is requested
        if (deployer == null) {
            // Prepare our output writer to generate the response message
            response.setContentType("text/html; charset=" + Constants.CHARSET);
            PrintWriter writer = response.getWriter();
            writer.println(sm.getString("managerServlet.unknownHost", host));
            writer.close();
        } else {
            doPut(deployer, request, response);
        }
    }


}