report.java

java编的邮件客户端

package mfetcher;

//
// Report
//

//
// Copyright (C) 1999 John Mettraux
//
// 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.
//
// 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.
//

import java.util.*;
import java.io.IOException;
import java.text.SimpleDateFormat;


public class Report
{
    
    public final static String REPORT_SUBJECT   = "Report";
    
    SimpleDateFormat sdf
        = new SimpleDateFormat (" dd MMM yyyy, HH:mm:ss", Locale.UK);
    
//
// DATAS

    int popBoxes;
    String recipient;
    String smtpHost;
    
    int reportsReceived = 0;
    boolean reportSent = false;
    
    Vector messageBody = new Vector();
    
    String version = null;
    
    SmtpMailer smtpMailer;
    
//
// CONSTRUCTORS

    public Report (int popBoxes, String recipient, String source, String smtpHost)
    {
        this.popBoxes = popBoxes;
        this.recipient = recipient;
        this.smtpHost = smtpHost;
        
        smtpMailer = new SmtpMailer(smtpHost, source);
        
        //
        // report message header
        messageBody.addElement("to: " + recipient);
        messageBody.addElement("from: " + source);
        messageBody.addElement("subject: " + REPORT_SUBJECT);
        messageBody.addElement("date: " 
            + sdf.format(new Date()) + " " + MailFetcher.timeZoneModifier);
        messageBody.addElement("");
        //
        // top of report message body
        messageBody.addElement(MailFetcher.version);
        messageBody.addElement("");
    }

//
// METHODS

    public void addPopReport (String popReport)
        throws IOException, MessageException
    {
        if (reportSent)
            //
            // report sent so no need for another report
            return;
            
        reportsReceived++;
        messageBody.addElement(popReport);
        
        //System.out.println("reportsReceived = "+reportsReceived);
        //System.out.println("popBoxes = "+popBoxes);
        
        if (reportsReceived >= popBoxes) {
            //
            // send the report...
            reportSent = true;
            
            if (version != null)
                smtpMailer.setVersion(version);
                
            //
            // copyright + GPL info
            messageBody.addElement("");
            messageBody.addElement(MailFetcher.copyright);
            messageBody.addElement(".");    
            
            String[] mb = new String[messageBody.size()];
            for (int i=0; i<messageBody.size(); i++)
                mb[i] = (String)messageBody.elementAt(i);
                
            smtpMailer.sendMail(recipient, mb);    
        }
    }
    
    public void addMessage (String message)
    {
        if (reportSent)
            //
            // report sent so no need for another report
            return;
            
        messageBody.addElement(message);
    }
    
    public void setVersion (String version)
    {
        this.version = version;
    }
    
    public static Report parseReport (int _popBoxes, String line)
        throws Exception
    //
    // reportto <email_address> from <source> smtphost <smtphost>
    //
    {
        StringTokenizer st = new StringTokenizer(line);
        
        st.nextToken();
            // reportto
        String _recipient = st.nextToken();
        
        st.nextToken();
            // from
        String _source = st.nextToken();
        if (_source.indexOf('@') == -1)
            throw new Exception("Source field incomplete (@ missing)");
        
        st.nextToken();
            // smtphost
        String _smtpHost = st.nextToken();   
        
        return new Report(_popBoxes, _recipient, _source, _smtpHost);
    }
}