基于 System.Web.Mail 的邮件发送和接收类

Mail.rar

/**//* 
 * 基于 System.Web.Mail  的邮件发送和接收类
*/

using System;
using System.Collections;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Web.Mail;
using System.Text;

namespace Mail
{
    "邮件接收类"#region "邮件接收类"
    /**//// <summary>
    /// 邮件接收类
    /// </summary>
    public class POP3
    {
        string POPServer;
        string user;
        string pwd;
        NetworkStream ns;
        StreamReader sr;

        public POP3(){}

        

        /**//// <summary>
        /// POP3
        /// </summary>
        /// <param name="server">POP3服务器名称</param>
        /// <param name="_user">用户名</param>
        /// <param name="_pwd">用户密码</param>
        public POP3(string server, string _user, string _pwd)
        {
            POPServer = server;
            user = _user;
            pwd = _pwd;
        }

        private bool Connect()
        {
            TcpClient sender = new TcpClient(POPServer,110);
            byte[] outbytes;
            string input;

            try
            {
                ns = sender.GetStream();
                sr = new StreamReader(ns);

                sr.ReadLine();
                input = "user " + user + "\r\n";
                outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
                ns.Write(outbytes,0,outbytes.Length) ;
                sr.ReadLine();
            
                input = "pass " + pwd + "\r\n";
                outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
                ns.Write(outbytes,0,outbytes.Length) ;
                sr.ReadLine();
                return true;  
        
            }
            catch
            {
                return false;
            }
        }

        private void Disconnect()
        {
            string input = "quit" + "\r\n";
            Byte[] outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
            ns.Write(outbytes,0,outbytes.Length);
            ns.Close();
        }

        /**//// <summary>
        /// 获得新邮件数量
        /// </summary>
        /// <returns>新邮件数量</returns>
        public int GetNumberOfNewMessages()
        {
            byte[] outbytes;
            string input;

            try
            {
                Connect();

                input = "stat" + "\r\n";
                outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
                ns.Write(outbytes,0,outbytes.Length);
                string resp = sr.ReadLine();
                string[] tokens = resp.Split(new Char[] {' '});

                Disconnect();

                return Convert.ToInt32(tokens[1]);
            }
            catch
            {
                return -1;
            }
        }

        /**//// <summary>
        /// 获取新邮件内容
        /// </summary>
        /// <param name="subj">邮件主题</param>
        /// <returns>新邮件内容</returns>
        public ArrayList GetNewMessages(string subj)
        {

            int newcount;
            ArrayList newmsgs = new ArrayList();

            try
            {
                newcount = GetNumberOfNewMessages();
                Connect();

                for(int n=1; n<newcount+1; n++)
                {
                    ArrayList msglines = GetRawMessage(n);
                    string msgsubj = GetMessageSubject(msglines);
                    if(msgsubj.CompareTo(subj) == 0)
                    {
                        System.Web.Mail.MailMessage msg = new MailMessage();
                        msg.Subject = msgsubj;
                        msg.From = GetMessageFrom(msglines);
                        msg.Body = GetMessageBody(msglines);
                        newmsgs.Add(msg);
                        DeleteMessage(n);
                    }
                }

                Disconnect();
                return newmsgs;
            }
            catch(Exception e)
            {
                return newmsgs;
            }
        }

        /**//// <summary>
        /// 获取新邮件内容
        /// </summary>
        /// <param name="nIndex">新邮件索引</param>
        /// <returns>新邮件内容</returns>
        public MailMessage GetNewMessages(int nIndex)
        {
            int newcount;
            System.Web.Mail.MailMessage msg = new MailMessage();

            try
            {
                newcount = GetNumberOfNewMessages();
                Connect();
                int n = nIndex+1;

                if(n<newcount+1)
                {
                    ArrayList msglines = GetRawMessage(n);
                    string msgsubj = GetMessageSubject(msglines);
                
                    
                    msg.Subject = msgsubj;
                    msg.From = GetMessageFrom(msglines);
                    msg.Body = GetMessageBody(msglines);
                }

                Disconnect();
                return msg;
            }
            catch
            {
                return null;
            }
        }
        private ArrayList GetRawMessage (int messagenumber)
        {
            Byte[] outbytes;
            string input;
            string line = "";

            input = "retr " + messagenumber.ToString() + "\r\n";
            outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
            ns.Write(outbytes,0,outbytes.Length);

            ArrayList msglines = new ArrayList();
            do
            {
                line = sr.ReadLine();
                msglines.Add(line);
            } while (line != ".");
            msglines.RemoveAt(msglines.Count-1);

            return msglines;
        }
        private string GetMessageSubject(ArrayList msglines)
        {
            string[] tokens;
            IEnumerator msgenum = msglines.GetEnumerator();
            while (msgenum.MoveNext() )
            {
                string line = (string)msgenum.Current;
                if(line.StartsWith("Subject:") )
                {
                    tokens = line.Split(new Char[] {' '});
                    return tokens[1].Trim();
                }
            }
            return "None";
        }
        private string GetMessageFrom (ArrayList msglines)
        {
            string[] tokens;
            IEnumerator msgenum = msglines.GetEnumerator();
            while (msgenum.MoveNext() )
            {
                string line = (string)msgenum.Current;
                if(line.StartsWith("From:") )
                {
                    tokens = line.Split(new Char[] {'<'});
                    return tokens[1].Trim(new Char[] {'<','>'});
                }
            }
            return "None";
        }
        private string GetMessageBody(ArrayList msglines)
        {
            string body = "";
            string line = " ";
            IEnumerator msgenum = msglines.GetEnumerator();

            while(line.CompareTo("") != 0)
            {
                msgenum.MoveNext();
                line = (string)msgenum.Current;
            }

            while (msgenum.MoveNext() )
            {
                body = body + (string)msgenum.Current + "\r\n";
            }
            return body;
        }
        private void DeleteMessage(int messagenumber)
        {
            Byte[] outbytes;
            string input;

            try
            {
                input = "dele " + messagenumber.ToString() + "\r\n";
                outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
                ns.Write(outbytes,0,outbytes.Length);
            }
            catch(Exception e)
            {
                return;
            }

        }

    }

    #endregion

    "邮件发送类"#region "邮件发送类"

    /**//// <summary>
    /// 邮件发送类
    /// </summary>
    public class SMTP
    {
        public SMTP(){}
        
        /**//// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="strSmtpServer">SMTP服务器名称</param>
        /// <param name="nPort">端口号</param>
        /// <param name="strSend">发件人名称</param>
        /// <param name="strReceive">收件人名称</param>
        /// <param name="strSubject">邮件主题</param>
        /// <param name="strContent">邮件内容</param>
        /// <returns>指示邮件是否发送成功</returns>
        public bool Send(string strSmtpServer,int nPort,string strSend,string strReceive
            ,string strSubject,string strContent)
        {
            　　
            string smtpserver=strSmtpServer;// smtp服务器的IP地址
            TcpClient tcpc = new TcpClient();
            try
            {
                tcpc.Connect(smtpserver, nPort);
                StreamReader sr ;
                string strCmd;
                sr = new StreamReader(tcpc.GetStream(),Encoding.Default);
                //服务器连接成功以后，首先向服务器发送HeLlo命令
                strCmd="HELO shaozhd";
                SenSmtpCmd(tcpc,strCmd);
                //然后向服务器发送信件的成员的信箱
                strCmd="mail from:"+ strSend;
                SenSmtpCmd(tcpc,strCmd);
                //向服务器发送收件人的信箱
                strCmd="rcpt to:" + strReceive;
                SenSmtpCmd(tcpc,strCmd);
                //所有的准备工作都已经作好了,下面开始进行邮件的部分
                strCmd="data";
                SenSmtpCmd(tcpc,strCmd);
                //邮件内容
                strCmd="Date: 1234567\r\n";
                strCmd=strCmd+"From: " + strSend +"\r\n";
                strCmd=strCmd+"To: " + strReceive +"\r\n";
                strCmd=strCmd+"Subject: " + strSubject +"\r\n\r\n";
                strCmd=strCmd + strContent +"\r\n\r\n";
                SenSmtpCmd(tcpc,strCmd);
                strCmd="\r\n.\r\n";
                SenSmtpCmd(tcpc,strCmd);
                //最后 关闭与smtp 服务器的连接
　　　　　　    tcpc.Close();
                return true;
　            }
            catch
            {
                return false;
            }
        }
        void SenSmtpCmd(TcpClient tcpc,String strCmd)
        {

　　　    　　byte[] arrCmd;
        　　string strRet;
        　　StreamReader sr;
    　　　　Stream s;
    　　　　s=tcpc.GetStream();
    　　　　strCmd = strCmd + "\r\n";
    　　　　arrCmd= Encoding.Default.GetBytes(strCmd.ToCharArray()); 
    　　　　s=tcpc.GetStream();
    　　　　s.Write(arrCmd, 0, strCmd.Length);
            //以下用于程序调试，显示服务器回应信息
    　　　　sr = new StreamReader(tcpc.GetStream(), Encoding.Default);
    　　　　strRet=sr.ReadLine();
    　　　　return;
        }

        /**//// <summary>
        /// 发送邮件(加入身份验证信息)
        /// </summary>
        /// <param name="strSmtpServer">SMTP服务器名称</param>
        /// <param name="strSendName">指定发件人名称</param>
        /// <param name="strReceive">指定收件人地址</param>
        /// <param name="strUserName">指定邮件用户名称</param>
        /// <param name="strPass">指定邮件用户密码</param>
        /// <param name="strSubject">指定邮件主题</param>
        /// <param name="strContent">指定邮件内容</param>
        /// <param name="strPriority">指定邮件优先级("High"为高,"Low"为低,默认为"Normal"常规</param>
        /// <param name="strBodyFormat">指定邮件格式("Text" Or "Html"),默认为"Html"</param>
        /// <param name="strFileName">指定附件路径</param>
        /// <returns>指示邮件是否发送成功</returns>
        public bool Send(string strSmtpServer,string strSendName,string strReceive
            ,string strUserName,string strPass, string strSubject,string strContent
            ,string strPriority,string strBodyFormat,string strFileName)
        {
            MailMessage m = new MailMessage();
            m.From = strSendName;
            m.To = strReceive;
            m.Subject = strSubject;
            m.Body = strContent;
            //优先级
            switch(strPriority)
            {
                case "High":
                    m.Priority = MailPriority.High;
                    break;
                case "Low":
                    m.Priority = MailPriority.Low;
                    break;
                default:
                    m.Priority = MailPriority.Normal;
                    break;
            }
            //格式
            switch(strPriority)
            {
                case "Text":
                    m.BodyFormat = MailFormat.Text;
                    break;
                default:
                    m.BodyFormat = MailFormat.Html;
                    break;
            }
            //以下设置服务器
            if(strSmtpServer!="")
            {
                SmtpMail.SmtpServer = strSmtpServer;
                //以下代码适用于Framework1.1以上版本。
                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate",
                    "1");    //basic authentication
                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername",
                    strUserName); //set your username here
                m.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword",
                    strPass);    //set your password here
            }
            //以下处理附件 
            if(strFileName!="")
                m.Attachments.Add(new MailAttachment(strFileName));
            try
            {
                SmtpMail.Send(m);
                return true;
            }
            catch (Exception e)
            {
                return false;
            }
        }
    }
    #endregion

}