chris@1: /*
chris@1:  *   SONEWS News Server
chris@1:  *   see AUTHORS for the list of contributors
chris@1:  *
chris@1:  *   This program is free software: you can redistribute it and/or modify
chris@1:  *   it under the terms of the GNU General Public License as published by
chris@1:  *   the Free Software Foundation, either version 3 of the License, or
chris@1:  *   (at your option) any later version.
chris@1:  *
chris@1:  *   This program is distributed in the hope that it will be useful,
chris@1:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@1:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@1:  *   GNU General Public License for more details.
chris@1:  *
chris@1:  *   You should have received a copy of the GNU General Public License
chris@1:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@1:  */
chris@1: 
chris@1: package org.sonews.web;
chris@1: 
chris@1: import java.io.IOException;
chris@1: import java.util.HashSet;
chris@1: import javax.servlet.http.HttpServletRequest;
chris@1: import javax.servlet.http.HttpServletResponse;
chris@1: import org.sonews.util.StringTemplate;
chris@1: 
chris@1: /**
chris@1:  * Servlet that shows the Peers and the Peering Rules.
chris@1:  * @author Christian Lins
chris@1:  * @since sonews/0.5.0
chris@1:  */
chris@1: public class SonewsPeerServlet extends AbstractSonewsServlet
chris@1: {
chris@1: 
chris@1:   private static final long serialVersionUID = 245345346356L;
chris@1:   
chris@1:   @Override
chris@1:   public void doGet(HttpServletRequest req, HttpServletResponse resp)
chris@1:     throws IOException
chris@1:   {
chris@1:     synchronized(this)
chris@1:     {
chris@1:       connectToNewsserver();
chris@1:       StringTemplate tmpl = getTemplate("SonewsPeerServlet.tmpl");
chris@1: 
chris@1:       // Read peering rules from newsserver
chris@1:       printlnToNewsserver("XDAEMON LIST PEERINGRULES");
chris@1:       String line = readlnFromNewsserver();
chris@1:       if(!line.startsWith("200 "))
chris@1:       {
chris@1:         throw new IOException("Unexpected reply: " + line);
chris@1:       }
chris@1: 
chris@1:       // Create FEED_RULES String
chris@1:       HashSet<String> peers        = new HashSet<String>();
chris@1:       StringBuilder   feedRulesStr = new StringBuilder();
chris@1:       for(;;)
chris@1:       {
chris@1:         line = readlnFromNewsserver();
chris@1:         if(line.equals("."))
chris@1:         {
chris@1:           break;
chris@1:         }
chris@1:         else
chris@1:         {
chris@1:           feedRulesStr.append(line);
chris@1:           feedRulesStr.append("<br/>");
chris@1: 
chris@1:           String[] lineChunks = line.split(" ");
chris@1:           peers.add(lineChunks[1]);
chris@1:         }
chris@1:       }
chris@1: 
chris@1:       // Create PEERS string
chris@1:       StringBuilder peersStr = new StringBuilder();
chris@1:       for(String peer : peers)
chris@1:       {
chris@1:         peersStr.append(peer);
chris@1:         peersStr.append("<br/>");
chris@1:       }
chris@1: 
chris@1:       // Set server name
chris@1:       tmpl.set("PEERS", peersStr.toString());
chris@1:       tmpl.set("PEERING_RULES", feedRulesStr.toString());
chris@1:       tmpl.set("SERVERNAME", hello.split(" ")[2]);
chris@1:       tmpl.set("TITLE", "Peers");
chris@1: 
chris@1:       resp.getWriter().println(tmpl.toString());
chris@1:       resp.getWriter().flush();
chris@1:       resp.setStatus(HttpServletResponse.SC_OK);
chris@1:       disconnectFromNewsserver();
chris@1:     }
chris@1:   }
chris@1:   
chris@1: }