import java.awt.*;
import java.io.*;
import java.util.Properties; 
//import java.security.MessageDigest;
import java.awt.event.*;

import javax.swing.*;

public final class SendMail extends JFrame {     //采用继承JFrame方式设计窗体，调用更加方便
	
	/**
	 * serialVersionUID是一个标志，解决不同的版本之间的串行话问题
	 */
	private static final long serialVersionUID = 1L;
	/**
	 * @param args
	 */
	
	boolean frameSizeAdjusted = false;
	JLabel JLabel1=new JLabel();
	JLabel JLabel2=new JLabel();
	JLabel JLabel3=new JLabel();
	JLabel JLabel4=new JLabel();
	JLabel JLabel5=new JLabel();
	JTextField _pwd=new JTextField();
	JTextField _from=new JTextField();
	JTextField _to=new JTextField();
	JTextField _subject=new JTextField();
	JTextField _smtp=new JTextField();
	JScrollPane _scrollPane=new JScrollPane();
	JScrollPane _scrollPane2=new JScrollPane();
	JTextArea _body=new JTextArea();
	JButton Send=new JButton();
	JButton Cancel=new JButton();
	JList _output=new JList();
	DefaultListModel _model=new DefaultListModel();
	BufferedReader _in;
	PrintWriter _out;
	
	public SendMail()
	{
		setTitle("SendMail Power by Hector");
		Container panel=getContentPane();
		panel.setLayout(null);
		setSize(780,340);
		setVisible(false);
		
		JLabel1.setText("From:");
		JLabel2.setText("Password:");
		JLabel3.setText("To:");
		JLabel4.setText("Subject:");
		JLabel5.setText("SMTP Sever:");
		panel.add(JLabel1);
		panel.add(JLabel2);
		panel.add(JLabel3);
		panel.add(JLabel4);
		panel.add(JLabel5);
		JLabel1.setBounds(12, 12, 36, 12);
		JLabel2.setBounds(12, 48, 84, 12);
		JLabel3.setBounds(12, 84, 48, 12);
		JLabel4.setBounds(12, 120, 84, 12);
		JLabel5.setBounds(12, 156, 84, 12);
		
		
		
		panel.add(_from);
		_from.setBounds(96, 12, 300, 24);
		panel.add(_pwd);
		_pwd.setBounds(96, 48, 300, 24);
		panel.add(_to);
		_to.setBounds(96, 84, 300, 24);
		panel.add(_subject);
		_subject.setBounds(96, 120, 300, 24);
		panel.add(_smtp);
		_smtp.setBounds(96, 156, 300, 24);
		
		panel.add(_scrollPane2);
		_scrollPane2.setBounds(12,192,384,108);
		
		_body.setText("Enter your message here.");
		_scrollPane2.getViewport().add(_body);
		_body.setBounds(0, 0, 381, 105);
		
		Send.setText("Send");
		Send.setBounds(60, 312, 132, 24);
		panel.add(Send);
		Cancel.setText("Cancel");
		Cancel.setBounds(216, 312, 120, 24);
		panel.add(Cancel);
		
		_scrollPane.setBounds(408, 12, 348, 288);
		panel.add(_scrollPane);
		
		_output.setBounds(408, 12, 345, 285);
		panel.add(_output);
		//按钮加入监听器，具体实现在监听器里面判断事件源
		SymAction lSymAction=new SymAction();
		Send.addActionListener(lSymAction);
		Cancel.addActionListener(lSymAction);
		
		
		_output.setModel(_model);
		_model.addElement("Sever out displayed here:");
		_scrollPane.getViewport().setView(_output);
		_scrollPane2.getViewport().setView(_body);
		
	}
	public void setVisible(boolean b)
	{
		if(b)
			setLocation(50,50);
		super.setVisible(b);
	}
	@SuppressWarnings("deprecation")
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		SendMail mymail=new SendMail();
		mymail.show();
		//(new SendMail()).show();
	}
	public void addNotify()//窗口调整函数而已
	{ 
		Dimension size=getSize();
		super.addNotify();
		if(frameSizeAdjusted)
			return;
		frameSizeAdjusted = true;
		Insets insets = getInsets();
		JMenuBar menuBar = getRootPane().getJMenuBar();
		int menuBarHeight = 0;
		if( menuBar != null)
			menuBarHeight = menuBar.getPreferredSize().height;
		setSize(insets.left + insets.right + size.width,insets.top + insets.bottom +size.height+menuBarHeight);
	}

	class SymAction implements ActionListener   //通过接口实现监听类
	{
		public void actionPerformed(ActionEvent event)
		{
			Object object = event.getSource();    //获取事件发生源，进行不同操作
			if(object == Send)
				Send_actionPerformed(event);
			else if( object == Cancel)
				Cancel_actionPerformed(event);
		}
	}
	
	protected void send(String s) throws IOException  //异常由调用者抛出
	{
		if(s!=null)
		{
			_model.addElement("C:"+s);
			_out.print(s);       //在侧边栏输出发送信息
			_out.flush();        //强制缓冲区输出
		}
		String line = _in.readLine();
		if(line!=null)
		{
			_model.addElement("S:"+line); //输出服务器返回信息
		}
		else
		{
			_model.addElement("error");
		}
	}
	void Send_actionPerformed(ActionEvent event)
	{
		try
		{
			java.net.Socket s=new java.net.Socket(_smtp.getText(),25);  //创建套接字，SMTP默认25端口
			_out=new PrintWriter(s.getOutputStream());                 //实例化输入输出流
			_in=new BufferedReader(new InputStreamReader(s.getInputStream()));
			
			send(null);
			send("HELO " + java.net.InetAddress.getLocalHost().getHostName()+"\r\n");//noly
			/*用户验证，发送base64加密的用户名密码*/
			send("AUTH LOGIN"+"\r\n");//only
			send((new   sun.misc.BASE64Encoder()).encode(_from.getText().getBytes())+"\r\n");//only
			send((new   sun.misc.BASE64Encoder()).encode( _pwd.getText().getBytes())+"\r\n");//only
			send("MAIL FROM: " + _from.getText()+"\r\n");//only
			send("RCPT TO: " + _to.getText()+"\r\n");
			send("DATA"+"\r\n");
			
			/*输出邮件信息，注意这里内容可以伪造*/
			_out.print("cc:" + "这里是抄送内容"+"\r\n");
			_out.print("From:" + "来自邮箱"+"\r\n");
			_out.print("to:" + "发送的邮件地"+"\r\n");
			_out.print("date:" + "时间"+"\r\n");
			_out.print("Subject:" + _subject.getText()+"\r\n");
			/********************************
			 * 邮件信息发送完毕，开始发送正文。
			 * 运用MIME(Multipurpose Internet Mail Extensions，多功能Internet 邮件扩充服务）实现发送各种格式的邮件。
			 * 个人时间有限，此实例暂时只加入发送html文件。
			 ****************************** */
			_out.print("X-Mailer:Hector's mail\r\n"      //先发送信息头
				+"MIMI-Version:1.0\r\n"+"Content-Type:multipart/mixed;boundary=\"#BOUNDARY#\"\r\n\r\n"
				+"Content-Transfer-Encoding:7bit\r\n\r\n"
				+"This is a multi-part message in MIME format\r\n\r\n"
				+"--#BOUNDARY#\r\n"   //一个分段标志而已，便于分段发送各种数据
				+"Content-Type: text/html;charset=gb2312\r\n"
				+"Content-Transfer-Encoding:printable\r\n\r\n"
				+_body.getText()+"\r\n"		//html正文	
				);
			send("\r\n"+"."+"\r\n");
			send("quit"+"\r\n");
			s.close();
			
		}
		catch(Exception e)
		{
			_model.addElement("Error" + e); //输出获取的异常
		}
	}
	void Cancel_actionPerformed(ActionEvent event)
	{
		System.exit(0);         //正常退出而已
	}
}