/*
    * 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 examples;
  
  import java.io.BufferedReader;
  import java.io.FileNotFoundException;
  import java.io.FileReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.io.Writer;
  import java.util.Enumeration;
  import java.util.Vector;
  import org.apache.commons.net.io.Util;
  import org.apache.commons.net.smtp.SMTPClient;
  import org.apache.commons.net.smtp.SMTPReply;
  import org.apache.commons.net.smtp.SimpleSMTPHeader;
  
  /***
   * This is an example program using the SMTP package to send a message
   * to the specified recipients.  It prompts you for header information and
   * a filename containing the message.
   * <p>
   ***/
  
  public final class mail
  {
  
      public final static void main(String[] args)
      {
          String sender, recipient, subject, filename, server, cc;
          Vector ccList = new Vector();
          BufferedReader stdin;
          FileReader fileReader = null;
          Writer writer;
          SimpleSMTPHeader header;
          SMTPClient client;
          Enumeration en;
  
          if (args.length < 1)
          {
              System.err.println("Usage: mail smtpserver");
              System.exit(1);
          }
  
          server = args[0];
  
          stdin = new BufferedReader(new InputStreamReader(System.in));
  
          try
          {
              System.out.print("From: ");
              System.out.flush();
  
              sender = stdin.readLine();
  
              System.out.print("To: ");
              System.out.flush();
  
              recipient = stdin.readLine();
  
              System.out.print("Subject: ");
              System.out.flush();
  
              subject = stdin.readLine();
  
              header = new SimpleSMTPHeader(sender, recipient, subject);
  
  
              while (true)
              {
                  System.out.print("CC <enter one address per line, hit enter to end>: ");
                  System.out.flush();
  
                  // Of course you don't want to do this because readLine() may be null
                  cc = stdin.readLine().trim();
  
                  if (cc.length() == 0)
                      break;
  
                  header.addCC(cc);
                  ccList.addElement(cc);
              }
  
              System.out.print("Filename: ");
             System.out.flush();
 
             filename = stdin.readLine();
 
             try
             {
                 fileReader = new FileReader(filename);
             }
             catch (FileNotFoundException e)
             {
                 System.err.println("File not found. " + e.getMessage());
             }
 
             client = new SMTPClient();
             client.addProtocolCommandListener(new PrintCommandListener(
                                                   new PrintWriter(System.out)));
 
             client.connect(server);
 
             if (!SMTPReply.isPositiveCompletion(client.getReplyCode()))
             {
                 client.disconnect();
                 System.err.println("SMTP server refused connection.");
                 System.exit(1);
             }
 
             client.login();
 
             client.setSender(sender);
             client.addRecipient(recipient);
 
             en = ccList.elements();
 
             while (en.hasMoreElements())
                 client.addRecipient((String)en.nextElement());
 
             writer = client.sendMessageData();
 
             if (writer != null)
             {
                 writer.write(header.toString());
                 Util.copyReader(fileReader, writer);
                 writer.close();
                 client.completePendingCommand();
             }
 
             fileReader.close();
 
             client.logout();
 
             client.disconnect();
         }
         catch (IOException e)
         {
             e.printStackTrace();
             System.exit(1);
         }
     }
 }