cmdjoinclosed.java

使用工具jublider开发的一个聊天室实现基本功能,

/**
 * Copyright (C) 2003  Manfred Andres
 * 
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * Created on 28.09.2003
 */

package freecs.commands;
import freecs.Server;
import freecs.interfaces.ICommand;
import freecs.interfaces.IGroupState;
import freecs.interfaces.IUserStates;
import freecs.core.GroupManager;
import freecs.content.MessageState;

/**
 * @author Manfred Andres
 *
 * freecs.commands
 */
public class CmdJoinClosed extends AbstractCommand {
	public final String cmd= "/jclosed";
	private static final ICommand selve=new CmdJoinClosed();

	private CmdJoinClosed () { }
	
	public static ICommand getInstance () {
		return selve;
	}
	
	public boolean execute (MessageState msgState, String param) {
        if (!msgState.sender.hasRight(IUserStates.MAY_JOIN_LOCKED_GROUP)) {
			msgState.msgTemplate="error.noRight.noAdmin";
			msgState.sender.sendMessage (msgState.mp);
            return false;
        }
        if (param.length () < 1) {
            msgState.msgTemplate="error.j.noArg";
            msgState.sender.sendMessage (msgState.mp);
            return false;
        }
        msgState.sourceGroup=msgState.sender.getGroup();
        String groupname;
        String topic = null;
        int pos = param.indexOf (":");
        if (pos > -1) { // joincommand issued with topic
            topic = param.substring (pos+1).trim ();
            groupname = param.substring (0, pos).trim ();
        } else {
            groupname = param;
        }
        if (groupname.length() <1 ) {
			msgState.msgTemplate="error.j.noArg";
			msgState.sender.sendMessage (msgState.mp);
			return false;
		}
        if (Server.srv.MAX_GROUPNAME_LENGTH > 0 
                && groupname.length() > Server.srv.MAX_GROUPNAME_LENGTH)
    			groupname = groupname.substring (0,Server.srv.MAX_GROUPNAME_LENGTH);
        if (msgState.sourceGroup.getRawName ().equalsIgnoreCase (groupname)) {
            msgState.targetGroup=msgState.sourceGroup;
            msgState.msgTemplate="error.j.alreadyHere";
            msgState.sender.sendMessage (msgState.mp);
            return false;
        }
        msgState.sourceGroup = msgState.sender.getGroup ();
        boolean senderWasSu = msgState.sourceGroup.usrIsSu(msgState.sender);
        msgState.targetGroup =  GroupManager.mgr.getGroup (groupname);
        if (msgState.targetGroup==null) {
            msgState.param = groupname;
            msgState.msgTemplate="error.jclosed.groupNotExisting";
            msgState.sender.sendMessage(msgState.mp);
            return false;
        }
        if (!msgState.targetGroup.hasState(IGroupState.ENTRANCE)
            && isPunished (msgState))
                return false;
        if (msgState.sender.isPunished()) {
            if (msgState.targetGroup != null && msgState.targetGroup.usrMayJoinPunished(msgState.sender)){
                msgState.targetGroup.incrementJoinPunishedCounter();
            } else {
                msgState.msgTemplate = "error.user.punished";
                msgState.sender.sendMessage(msgState.mp);
        	    return false;
            }
        }
        if (!msgState.sender.isPunished())
            msgState.sourceGroup.resetJoinPunishedCounter();
        if (msgState.targetGroup.usrIsBaned (msgState.sender.getName())) {
            msgState.msgTemplate = "error.j.banned";
            msgState.sender.sendMessage (msgState.mp);
            return false;
        }
        if (!msgState.targetGroup.usrMayJoin(msgState.sender)) {
            msgState.msgTemplate = "error.j.noRight";
            msgState.sender.sendMessage (msgState.mp);
            return false;
        }
        Server.log(this, msgState.sender.getName()
                + " joines closed group"
                + msgState.targetGroup.getRawName(), Server.MSG_STATE, Server.LVL_MINOR);
        msgState.msgTemplate = "message.user.join.closedGroup";
        msgState.targetGroup.sendMessage (msgState.mp);
        msgState.targetGroup.addUser (msgState.sender);
        if (msgState.sourceGroup.size() > 0) {
            msgState.msgTemplate = "message.user.leaving.group";
			msgState.sourceGroup.sendMessage (msgState.mp);
        }
        msgState.msgTemplate = "message.jclosed";
        msgState.sender.sendMessage (msgState.mp);
        return true;
    }
}