/*
* 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.sling.ftpserver.impl;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.ftpserver.ftplet.FtpReply;
import org.apache.ftpserver.ftplet.FtpRequest;
import org.apache.ftpserver.ftplet.FtpSession;
import org.apache.ftpserver.ftplet.FtpStatistics;
import org.apache.ftpserver.ftplet.Ftplet;
import org.apache.ftpserver.ftplet.FtpletContext;
import org.apache.ftpserver.ftplet.FtpletResult;
@SuppressWarnings("serial")
public class WebConsoleFtpLet extends HttpServlet implements Ftplet {
private FtpStatistics stats;
private final ConcurrentHashMap<UUID, SessionEntry> sessions = new ConcurrentHashMap<UUID, SessionEntry>();
public void init(FtpletContext ftpletContext) {
this.stats = ftpletContext.getFtpStatistics();
}
public FtpletResult onConnect(FtpSession session) {
this.sessions.put(session.getSessionId(), new SessionEntry(session));
return null;
}
public FtpletResult beforeCommand(FtpSession session, FtpRequest request) {
this.sessions.get(session.getSessionId()).setRequestLine(request.getRequestLine());
return null;
}
public FtpletResult afterCommand(FtpSession session, FtpRequest request, FtpReply reply) {
this.sessions.get(session.getSessionId()).setRequestLine(null);
return null;
}
public FtpletResult onDisconnect(FtpSession session) {
this.sessions.remove(session.getSessionId());
return null;
}
public void destroy() {
// make sure to not hold on to anything after destroyal
this.sessions.clear();
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
final PrintWriter pw = resp.getWriter();
final Date start = this.stats.getStartTime();
final long uptime = (System.currentTimeMillis() - start.getTime()) / 1000;
pw.print("<p class=\"statline ui-state-highlight\">");
pw.printf("FTP Server active. Started: %s. Uptime %d:%02d:%02d.", start, uptime / 3600, uptime / 60 % 60,
uptime % 60);
pw.println("</p>");
pw.println("<table class=\"nicetable\">");
pw.println("<tr>");
pw.println("<th>Connections</th>");
pw.println("<th>Anonymous Logins</th>");
pw.println("<th>Authenticated Logins</th>");
pw.println("<th>Total</th>");
pw.println("<th>Failed</th>");
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>Current</th>");
pw.printf("<td>%d</td>%n", this.stats.getCurrentAnonymousLoginNumber());
pw.printf("<td>%d</td>%n", this.stats.getCurrentLoginNumber());
pw.printf("<td>%d</td>%n", this.stats.getCurrentConnectionNumber());
pw.printf("<td> </td>%n");
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>Total</th>");
pw.printf("<td>%d</td>%n", this.stats.getTotalAnonymousLoginNumber());
pw.printf("<td>%d</td>%n", this.stats.getTotalConnectionNumber());
pw.printf("<td>%d</td>%n", this.stats.getTotalLoginNumber());
pw.printf("<td>%d</td>%n", this.stats.getTotalFailedLoginNumber());
pw.println("</tr>");
pw.println("</table>");
pw.println("<p> </p>");
pw.println("<table class=\"nicetable\">");
pw.println("<tr>");
pw.println("<th colspan='2'>Operations</th>");
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>Directory</th>");
pw.printf("<td>%d created, %d removed</td>%n", this.stats.getTotalDirectoryCreated(),
this.stats.getTotalDirectoryRemoved());
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>File Removals</th>");
pw.printf("<td>%d</td>%n", this.stats.getTotalDeleteNumber());
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>File Uploads</th>");
pw.printf("<td>%d (%d MB)</td>%n", this.stats.getTotalUploadNumber(),
this.stats.getTotalUploadSize() / 1024 / 1024);
pw.println("</tr>");
pw.println("</tr>");
pw.println("<tr>");
pw.println("<th>File Downloads</th>");
pw.printf("<td>%d (%d MB)</td>%n", this.stats.getTotalDownloadNumber(),
this.stats.getTotalDownloadSize() / 1024 / 1024);
pw.println("</tr>");
pw.println("</table>");
pw.println("<p> </p>");
pw.println("<table class=\"nicetable\">");
pw.println("<tr>");
pw.println("<th>Session ID</th>");
pw.println("<th>User</th>");
pw.println("<th>Address</th>");
pw.println("<th>Connected</th>");
pw.println("<th>Logged In</th>");
pw.println("<th>Last Access</th>");
pw.println("<th>Max Idle Time (s)</th>");
pw.println("</tr>");
for (SessionEntry entry : this.sessions.values()) {
final FtpSession session = entry.getSession();
/*
* Display a subset of the session information. The following
* is omitted for now:
* - session.getDataType();
* - session.getFailedLogins();
* - session.getFileOffset();
* - session.getLanguage()
* - session.getUserArgument();
* - session.getStructure();
*/
pw.println("<tr>");
pw.printf("<td>%s</td>%n", session.getSessionId());
pw.printf("<td>%s</td>%n", session.getUser().getName());
pw.printf("<td>%s:%s</td>%n", session.getClientAddress().getAddress().getHostAddress(),
session.getClientAddress().getPort());
pw.printf("<td>%1$tF %1$tT</td>%n", session.getConnectionTime());
pw.printf("<td>%1$tF %1$tT</td>%n", session.getLoginTime());
pw.printf("<td>%1$tF %1$tT</td>%n", session.getLastAccessTime());
pw.printf("<td>%d</td>%n", session.getMaxIdleTime());
pw.println("</tr>");
if (entry.getRequestLine() != null) {
pw.println("<tr>");
pw.printf("<td> </td>%n");
pw.printf("<td colspan='6'>%s</td>%n", entry.getRequestLine());
pw.println("</tr>");
}
}
pw.println("</table>");
}
private static final class SessionEntry {
private final FtpSession session;
private String requestLine;
public SessionEntry(final FtpSession session) {
this.session = session;
}
public FtpSession getSession() {
return session;
}
public void setRequestLine(String requestLine) {
this.requestLine = requestLine;
}
public String getRequestLine() {
return requestLine;
}
}
}