📄 about.java
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import net.wastl.webmail.server.*;import net.wastl.webmail.server.http.*;import net.wastl.webmail.ui.html.*;import net.wastl.webmail.exceptions.*;import java.util.Enumeration;/** * About.java * * Created: Wed Sep 1 17:16:06 1999 * * Copyright (C) 1999-2000 Sebastian Schaffert * * 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. *//** * * * * @author Sebastian Schaffert * @version */public class About implements Plugin, URLHandler { public static final String VERSION="1.00"; public static final String URL="/about"; WebMailServer parent; public About() { } public void register(WebMailServer parent) { parent.getURLHandler().registerHandler(URL,this); this.parent=parent; } public String getName() { return "About"; } public String getDescription() { return "About WebMail"; } public String getVersion() { return VERSION; } public String getURL() { return URL; } public HTMLDocument handleURL(String suburl, HTTPSession session, HTTPRequestHeader header) throws DocumentNotFoundException { String content="<BODY BGCOLOR=WHITE><CENTER><H1>About WebMail</H1></CENTER><BR>"; content+="<H3>Copyright</H3><BR>WebMail is (c)1999 by Sebastian Schaffert, wastl@wastl.net " +"and is distributed under the terms of the <A HREF=\"<<BASE>>/license/gnu\">GNU Lesser General Public License</A> " +".<BR><P><HR><P>" +"<H3>Registered Plugins</H3><BR><UL>"; Enumeration e=parent.getPluginHandler().getPlugins(); while(e.hasMoreElements()) { Plugin p=(Plugin)e.nextElement(); content+="<LI><B>"+p.getName()+"</B> (v"+p.getVersion()+"): "+p.getDescription()+"</LI>"; } //System.gc(); content+="</UL><P><HR><P><H3>System Information</H3><BR><UL><LI><B>Operating System:</B> "+System.getProperty("os.name") +"/"+System.getProperty("os.arch")+" "+System.getProperty("os.version")+"</LI><LI><B>Java Virtual Machine:</B> " +System.getProperty("java.vm.name")+" version "+System.getProperty("java.version")+" from " +System.getProperty("java.vendor")+"</LI><LI><B>Free memory for this JVM:</B> " +Runtime.getRuntime().freeMemory()+" bytes</LI></UL></BODY>"; return new HTMLDocument("About WebMail",content); } public String provides() { return "about"; } public String requires() { return ""; } } // About⌨️ 快捷键说明
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