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Java > Open Source Codes > org > snipsnap > net > RobotServlet


1 /*
2  * This file is part of "SnipSnap Wiki/Weblog".
3  *
4  * Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
5  * All Rights Reserved.
6  *
7  * Please visit http://snipsnap.org/ for updates and contact.
8  *
9  * --LICENSE NOTICE--
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * as published by the Free Software Foundation; either version 2
13  * of the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  * --LICENSE NOTICE--
24  */
25 package org.snipsnap.net;
26
27 import org.snipsnap.snip.SnipSpace;
28 import org.snipsnap.snip.Snip;
29 import org.snipsnap.container.Components;
30 import org.snipsnap.config.Configuration;
31
32 import javax.servlet.ServletException JavaDoc;
33 import javax.servlet.http.HttpServlet JavaDoc;
34 import javax.servlet.http.HttpServletRequest JavaDoc;
35 import javax.servlet.http.HttpServletResponse JavaDoc;
36 import java.io.IOException JavaDoc;
37 import java.io.PrintWriter JavaDoc;
38
39 /**
40  * Servlet to login recognise a robot. This servlet is mapped to robots.txt
41  * and updates the list of robot addresses in usermanager.
42  * @author Matthias L. Jugel
43  * @version $Id: RobotServlet.java 934 2003-08-19 16:06:55Z leo $
44  */
45 public class RobotServlet extends HttpServlet JavaDoc {
46
47   protected void doGet(HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response)
48       throws ServletException JavaDoc, IOException JavaDoc {
49     String JavaDoc name = request.getHeader("User-Agent");
50     String JavaDoc host = request.getRemoteHost();
51
52     SnipSpace space = (SnipSpace) Components.getComponent(SnipSpace.class);
53     if(space.exists(Configuration.SNIPSNAP_CONFIG_ROBOTS_TXT)) {
54       Snip robotstxt = space.load(Configuration.SNIPSNAP_CONFIG_ROBOTS_TXT);
55       PrintWriter JavaDoc writer = new PrintWriter JavaDoc(response.getOutputStream());
56       writer.println(robotstxt.getContent());
57       writer.flush();
58       // TODO add denied robots from SNIPSNAP_CONFIG_ROBOTS
59 } else {
60       response.sendError(HttpServletResponse.SC_NOT_FOUND);
61     }
62   }
63 }
64
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