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.daemon.command;
chris@1: 
chris@1: import java.io.IOException;
chris@1: import java.net.InetSocketAddress;
chris@1: import java.util.List;
chris@3: import org.sonews.config.Config;
chris@1: import org.sonews.daemon.NNTPConnection;
chris@3: import org.sonews.storage.StorageBackendException;
chris@3: import org.sonews.storage.StorageManager;
chris@1: import org.sonews.feed.FeedManager;
chris@1: import org.sonews.feed.Subscription;
chris@3: import org.sonews.storage.Group;
chris@1: import org.sonews.util.Stats;
chris@1: 
chris@1: /**
chris@1:  * The XDAEMON command allows a client to get/set properties of the
chris@1:  * running server daemon. Only locally connected clients are allowed to
chris@1:  * use this command.
chris@1:  * The restriction to localhost connection can be suppressed by overriding
chris@1:  * the sonews.xdaemon.host bootstrap config property.
chris@1:  * @author Christian Lins
chris@1:  * @since sonews/0.5.0
chris@1:  */
chris@3: public class XDaemonCommand implements Command
chris@1: {
chris@3: 
chris@3:   @Override
chris@3:   public String[] getSupportedCommandStrings()
chris@1:   {
chris@3:     return new String[]{"XDAEMON"};
chris@1:   }
chris@1: 
chris@1:   @Override
chris@1:   public boolean hasFinished()
chris@1:   {
chris@1:     return true;
chris@1:   }
chris@1: 
chris@3:   @Override
cli@20:   public String impliedCapability()
cli@20:   {
cli@20:     return null;
cli@20:   }
cli@20: 
cli@20:   @Override
chris@3:   public boolean isStateful()
chris@3:   {
chris@3:     return false;
chris@3:   }
chris@3: 
chris@1:   // TODO: Refactor this method to reduce complexity!
chris@1:   @Override
chris@3:   public void processLine(NNTPConnection conn, String line, byte[] raw)
chris@3:     throws IOException, StorageBackendException
chris@1:   {
chris@3:     InetSocketAddress addr = (InetSocketAddress)conn.getSocketChannel().socket()
chris@1:       .getRemoteSocketAddress();
chris@1:     if(addr.getHostName().equals(
chris@3:       Config.inst().get(Config.XDAEMON_HOST, "localhost")))
chris@1:     {
chris@1:       String[] commands = line.split(" ", 4);
chris@1:       if(commands.length == 3 && commands[1].equalsIgnoreCase("LIST"))
chris@1:       {
chris@1:         if(commands[2].equalsIgnoreCase("CONFIGKEYS"))
chris@1:         {
chris@3:           conn.println("100 list of available config keys follows");
chris@1:           for(String key : Config.AVAILABLE_KEYS)
chris@1:           {
chris@3:             conn.println(key);
chris@1:           }
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("PEERINGRULES"))
chris@1:         {
chris@1:           List<Subscription> pull = 
chris@3:             StorageManager.current().getSubscriptions(FeedManager.TYPE_PULL);
chris@1:           List<Subscription> push =
chris@3:             StorageManager.current().getSubscriptions(FeedManager.TYPE_PUSH);
chris@3:           conn.println("100 list of peering rules follows");
chris@1:           for(Subscription sub : pull)
chris@1:           {
chris@3:             conn.println("PULL " + sub.getHost() + ":" + sub.getPort()
chris@1:               + " " + sub.getGroup());
chris@1:           }
chris@1:           for(Subscription sub : push)
chris@1:           {
chris@3:             conn.println("PUSH " + sub.getHost() + ":" + sub.getPort()
chris@1:               + " " + sub.getGroup());
chris@1:           }
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else
chris@1:         {
chris@3:           conn.println("401 unknown sub command");
chris@1:         }
chris@1:       }
chris@1:       else if(commands.length == 3 && commands[1].equalsIgnoreCase("DELETE"))
chris@1:       {
chris@3:         StorageManager.current().delete(commands[2]);
chris@3:         conn.println("200 article " + commands[2] + " deleted");
chris@1:       }
chris@1:       else if(commands.length == 4 && commands[1].equalsIgnoreCase("GROUPADD"))
chris@1:       {
chris@3:         StorageManager.current().addGroup(commands[2], Integer.parseInt(commands[3]));
chris@3:         conn.println("200 group " + commands[2] + " created");
chris@1:       }
chris@1:       else if(commands.length == 3 && commands[1].equalsIgnoreCase("GROUPDEL"))
chris@1:       {
chris@3:         Group group = StorageManager.current().getGroup(commands[2]);
chris@1:         if(group == null)
chris@1:         {
chris@3:           conn.println("400 group not found");
chris@1:         }
chris@1:         else
chris@1:         {
chris@1:           group.setFlag(Group.DELETED);
chris@3:           group.update();
chris@3:           conn.println("200 group " + commands[2] + " marked as deleted");
chris@1:         }
chris@1:       }
chris@1:       else if(commands.length == 4 && commands[1].equalsIgnoreCase("SET"))
chris@1:       {
chris@1:         String key = commands[2];
chris@1:         String val = commands[3];
chris@3:         Config.inst().set(key, val);
chris@3:         conn.println("200 new config value set");
chris@1:       }
chris@1:       else if(commands.length == 3 && commands[1].equalsIgnoreCase("GET"))
chris@1:       {
chris@1:         String key = commands[2];
chris@3:         String val = Config.inst().get(key, null);
chris@1:         if(val != null)
chris@1:         {
chris@3:           conn.println("100 config value for " + key + " follows");
chris@3:           conn.println(val);
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else
chris@1:         {
chris@3:           conn.println("400 config value not set");
chris@1:         }
chris@1:       }
chris@1:       else if(commands.length >= 3 && commands[1].equalsIgnoreCase("LOG"))
chris@1:       {
chris@1:         Group group = null;
chris@1:         if(commands.length > 3)
chris@1:         {
chris@1:           group = Group.getByName(commands[3]);
chris@1:         }
chris@1: 
chris@1:         if(commands[2].equalsIgnoreCase("CONNECTED_CLIENTS"))
chris@1:         {
chris@3:           conn.println("100 number of connections follow");
chris@3:           conn.println(Integer.toString(Stats.getInstance().connectedClients()));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("POSTED_NEWS"))
chris@1:         {
chris@3:           conn.println("100 hourly numbers of posted news yesterday");
chris@1:           for(int n = 0; n < 24; n++)
chris@1:           {
chris@3:             conn.println(n + " " + Stats.getInstance()
chris@1:               .getYesterdaysEvents(Stats.POSTED_NEWS, n, group));
chris@1:           }
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("GATEWAYED_NEWS"))
chris@1:         {
chris@3:           conn.println("100 hourly numbers of gatewayed news yesterday");
chris@1:           for(int n = 0; n < 24; n++)
chris@1:           {
chris@3:             conn.println(n + " " + Stats.getInstance()
chris@1:               .getYesterdaysEvents(Stats.GATEWAYED_NEWS, n, group));
chris@1:           }
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("TRANSMITTED_NEWS"))
chris@1:         {
chris@3:           conn.println("100 hourly numbers of news transmitted to peers yesterday");
chris@1:           for(int n = 0; n < 24; n++)
chris@1:           {
chris@3:             conn.println(n + " " + Stats.getInstance()
chris@1:               .getYesterdaysEvents(Stats.FEEDED_NEWS, n, group));
chris@1:           }
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("HOSTED_NEWS"))
chris@1:         {
chris@3:           conn.println("100 number of overall hosted news");
chris@3:           conn.println(Integer.toString(Stats.getInstance().getNumberOfNews()));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("HOSTED_GROUPS"))
chris@1:         {
chris@3:           conn.println("100 number of hosted groups");
chris@3:           conn.println(Integer.toString(Stats.getInstance().getNumberOfGroups()));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("POSTED_NEWS_PER_HOUR"))
chris@1:         {
chris@3:           conn.println("100 posted news per hour");
chris@3:           conn.println(Double.toString(Stats.getInstance().postedPerHour(-1)));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("FEEDED_NEWS_PER_HOUR"))
chris@1:         {
chris@3:           conn.println("100 feeded news per hour");
chris@3:           conn.println(Double.toString(Stats.getInstance().feededPerHour(-1)));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else if(commands[2].equalsIgnoreCase("GATEWAYED_NEWS_PER_HOUR"))
chris@1:         {
chris@3:           conn.println("100 gatewayed news per hour");
chris@3:           conn.println(Double.toString(Stats.getInstance().gatewayedPerHour(-1)));
chris@3:           conn.println(".");
chris@1:         }
chris@1:         else
chris@1:         {
chris@3:           conn.println("401 unknown sub command");
chris@1:         }
chris@1:       }
chris@1:       else
chris@1:       {
chris@3:         conn.println("400 invalid command usage");
chris@1:       }
chris@1:     }
chris@1:     else
chris@1:     {
chris@3:       conn.println("501 not allowed");
chris@1:     }
chris@1:   }
chris@1:   
chris@1: }