/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ftpserver.command;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.Iterator;
import java.util.Map;
import org.apache.ftpserver.DefaultFtpReply;
import org.apache.ftpserver.ftplet.FtpException;
import org.apache.ftpserver.ftplet.FtpReply;
import org.apache.ftpserver.ftplet.FtpRequest;
import org.apache.ftpserver.ftplet.User;
import org.apache.ftpserver.ftplet.UserManager;
import org.apache.ftpserver.interfaces.FtpIoSession;
import org.apache.ftpserver.interfaces.FtpServerContext;
import org.apache.ftpserver.util.DateUtils;
import org.apache.ftpserver.util.FtpReplyUtil;
import org.apache.ftpserver.util.StringUtils;
import org.apache.mina.core.session.IoSession;
/**
* Sends the list of all the connected users.
*/
public
class SITE_WHO extends AbstractCommand {
/**
* Execute command.
*/
public void execute(final FtpIoSession session,
final FtpServerContext context,
final FtpRequest request) throws IOException, FtpException {
// reset state variables
session.resetState();
// only administrator can execute this
UserManager userManager = context.getUserManager();
boolean isAdmin = userManager.isAdmin(session.getUser().getName());
if(!isAdmin) {
session.write(FtpReplyUtil.translate(session, request, context, FtpReply.REPLY_530_NOT_LOGGED_IN, "SITE", null));
return;
}
// print all the connected user information
StringBuffer sb = new StringBuffer();
Map<Long,IoSession> sessions = session.getService().getManagedSessions();
sb.append('\n');
Iterator<IoSession> sessionIterator = sessions.values().iterator();
while(sessionIterator.hasNext()) {
FtpIoSession managedSession = new FtpIoSession(sessionIterator.next(), context);
if(!managedSession.isLoggedIn()) {
continue;
}
User tmpUsr = managedSession.getUser();
sb.append( StringUtils.pad(tmpUsr.getName(), ' ', true, 16) );
if(managedSession.getRemoteAddress() instanceof InetSocketAddress) {
sb.append( StringUtils.pad(((InetSocketAddress)managedSession.getRemoteAddress()).getAddress().getHostAddress(), ' ', true, 16) );
}
sb.append( StringUtils.pad(DateUtils.getISO8601Date(managedSession.getLoginTime().getTime()), ' ', true, 20) );
sb.append( StringUtils.pad(DateUtils.getISO8601Date(managedSession.getLastAccessTime().getTime()), ' ', true, 20) );
sb.append('\n');
}
sb.append('\n');
session.write(new DefaultFtpReply(FtpReply.REPLY_200_COMMAND_OKAY, sb.toString()));
}
}