package ch08.section01;

import java.io.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class SendMail
    extends HttpServlet {
  private static final String CONTENT_TYPE = "text/html; charset=gb2312";

  public void init() throws ServletException {
  }

  public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();

    String host = request.getParameter("host");
    String from = request.getParameter("from");
    String to = request.getParameter("to");
    String cc = request.getParameter("cc");
    String subject = request.getParameter("subject");
    String msg = request.getParameter("msg");
    try {

      java.util.Properties props = System.getProperties();
      props.put("mail.host", host);
      Session m_session = Session.getDefaultInstance(props, null);

      // 創建message對象
      Message m = new MimeMessage(m_session);

      InternetAddress[] iAddr = null;

      // 設置發送人
      m.setFrom(new InternetAddress(from));

      //設置接收人
      iAddr = InternetAddress.parse(to, false);
      m.setRecipients(Message.RecipientType.TO, iAddr);

      // 抄送地址
      if ( (cc != null) && (cc.trim().length() > 0)) {
        iAddr = InternetAddress.parse(cc, false);
        m.setRecipients(Message.RecipientType.CC, iAddr);
      }

      // 設置主題
      m.setSubject(subject);

      // 設置消息內容
      m.setContent(msg, "text/plain");

      // 發送時間
      m.setSentDate(new Date());

      // 發送信息
      Transport.send(m);

      out.println("發送成功!");
    }
    catch (Exception ex) {
      out.println("發送失敗: " + ex.getMessage());
    }

  }

  public void doPost(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    this.doGet(request, response);
  }

  public void destroy() {
  }
}