www.pudn.com > C++biyesheji.rar > SendMail.cs
using System;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Collections;
using System.Runtime .InteropServices ;
using System.Windows.Forms ;
//正则表达式需要用到的命名空间（本程序中主要用于切割字符串）
using System.Text .RegularExpressions ;
namespace MailSend
{
public class SmtpMail
{
public SmtpMail()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
//用来接收调用程序传来的附件路径
private string []FilePath;
// [DllImport("User32.dll")]
// public static extern int MessageBox(int h, string m, string c, int type);
//
///
/// 重载的构造函数，以便把相关的附件信息传入
///
///
public SmtpMail(ArrayList array)
{
//在重载构造函数的同时，将FiilePath初始化
FilePath=new string [array.Count ];
Attachments = new System.Collections.ArrayList();
for(int i=0;i
/// 设定语言代码，默认设定为GB2312，如不需要可设置为""
///
private string _charset="GB2312";
///
/// 发件人地址
///
private string _from="";
///
/// 发件人姓名
///
private string _fromName="";
///
/// 回复邮件地址
///
///public string ReplyTo="";
///
/// 收件人列表
///
private string Recipient;
///
/// 邮件服务器域名
///
private string mailserver="";
///
/// 邮件服务器端口号
///
private int mailserverport=25;
///
/// SMTP认证时使用的用户名
///
private string username="";
///
/// SMTP认证时使用的密码
///
private string password="";
///
/// 是否需要SMTP验证
///
private bool ESmtp=false;
///
/// 是否Html邮件
///
private bool _html=false;
///
/// 邮件附件列表
///
private IList Attachments;
///
/// 邮件发送优先级，可设置为"High","Normal","Low"或"1","3","5"
///
private string priority="Normal";
///
/// 邮件主题
///
private string _subject;
///
/// 邮件正文
///
private string _body;
///
/// 错误消息反馈
///
private string errmsg;
///
/// TcpClient对象，用于连接服务器
///
private TcpClient tc;
///
/// NetworkStream对象
///
private NetworkStream ns;
///
/// SMTP错误代码哈希表
///
private Hashtable ErrCodeHT = new Hashtable();
///
/// SMTP正确代码哈希表
///
private Hashtable RightCodeHT = new Hashtable();
///
/// 邮件主题
///
public string Subject
{
get
{
return this._subject;
}
set
{
this._subject = value;
}
}
///
/// 邮件正文
///
public string Body
{
get
{
return this._body;
}
set
{
this._body = value;
}
}
///
/// 发件人地址
///
public string From
{
get
{
return _from;
}
set
{
this._from = value;
}
}
///
/// 设定语言代码，默认设定为GB2312，如不需要可设置为""
///
public string Charset
{
get
{
return this._charset;
}
set
{
this._charset = value;
}
}
///
/// 发件人姓名
///
public string FromName
{
get
{
return this._fromName;
}
set
{
this._fromName = value;
}
}
///
/// 收件人姓名
///
public string RecipientName
{
get
{
return this.Recipient;
}
set
{
this.Recipient = value;
}
}
///
/// 邮件服务器域名和验证信息
/// 形如："user:pass@www.server.com:25"，也可省略次要信息。如"user:pass@www.server.com"或"www.server.com"
///
public string MailDomain
{
set
{
mailserver=value;
}
}
///
/// 邮件服务器端口号
///
public int MailDomainPort
{
set
{
mailserverport=value;
}
}
///
/// SMTP认证时使用的用户名
///
public string MailServerUserName
{
set
{
if(value.Trim()!="")
{
username=value.Trim();
ESmtp=true;
}
else
{
username="";
ESmtp=false;
}
}
}
///
/// SMTP认证时使用的密码
///
public string MailServerPassWord
{
set
{
password=value;
}
}
///
/// 邮件发送优先级，可设置为"High","Normal","Low"或"1","3","5"
///
public string Priority
{
set
{
switch(value.ToLower())
{
case "high":
priority="High";
break;
case "1":
priority="High";
break;
case "normal":
priority="Normal";
break;
case "3":
priority="Normal";
break;
case "low":
priority="Low";
break;
case "5":
priority="Low";
break;
default:
priority="Normal";
break;
}
}
}
///
/// 是否Html邮件
///
public bool Html
{
get
{
return this._html;
}
set
{
this._html = value;
}
}
///
/// 错误消息反馈
///
public string ErrorMessage
{
get
{
return errmsg;
}
}
public bool eSmtp
{
get
{
return this.ESmtp;
}
set
{
this.ESmtp =value;
}
}
///
/// 添加邮件附件
///
/// 附件绝对路径
public void AddAttachment(params string[] FilePath)
{
try
{
if(FilePath==null)
{
throw(new ArgumentNullException("FilePath"));
}
for(int i=0;i
/// 得到上传附件的文件流
///
/// 附件的绝对路径
private string GetStream(string FilePath)
{
try
{
//建立文件流对象
System.IO.FileStream FileStr=new System.IO.FileStream(FilePath,System.IO.FileMode.Open);
byte[] by=new byte[System.Convert.ToInt32(FileStr.Length)];
FileStr.Read(by,0,by.Length);
FileStr.Close();
return(System.Convert.ToBase64String(by));
}
catch
{
MessageBox.Show ("可能你要打开的文件的属性是只读的！","请检查权限");
return null;
}
}
///
/// 发送邮件方法，所有参数均通过属性设置。
///
public bool Send()
{
if(mailserver.Trim()=="")
{
MessageBox.Show ("必须指定SMTP服务器");
return false;
}
return SendEmail();
}
///
/// 发送邮件方法
///
/// smtp服务器信息，如"username:password@www.smtpserver.com:25"，也可去掉部分次要信
public bool Send(string smtpserver)
{
MailDomain=smtpserver;
return Send();
}
///
/// 发送邮件方法
///
/// smtp服务器信息，如"username:password@www.smtpserver.com:25"，也可去掉部分次要信
/// 发件人mail地址
/// 发件人姓名
/// 收件人地址
/// 收件人姓名
/// 是否HTML邮件
/// 邮件主题
/// 邮件正文
public bool Send(string smtpserver,string from,string fromname,string to,bool html,string
subject,string body)
{
MailDomain=smtpserver;
From=from;
FromName=fromname;
Recipient=to;
Html=html;
Subject=subject;
Body=body;
return Send();
}
void Dispose()
{
if(ns!=null)ns.Close();
if(tc!=null)tc.Close();
}
///
/// SMTP回应代码哈希表
///
private void SMTPCodeAdd()
{
ErrCodeHT.Add("500","邮箱地址错误");
ErrCodeHT.Add("501","参数格式错误");
ErrCodeHT.Add("502","命令不可实现");
ErrCodeHT.Add("503","服务器需要SMTP验证");
ErrCodeHT.Add("504","命令参数不可实现");
ErrCodeHT.Add("421","服务未就绪，关闭传输信道");
ErrCodeHT.Add("450","要求的邮件操作未完成，邮箱不可用（例如，邮箱忙）");
ErrCodeHT.Add("550","要求的邮件操作未完成，邮箱不可用（例如，邮箱未找到，或不可访问）");
ErrCodeHT.Add("451","放弃要求的操作；处理过程中出错");
ErrCodeHT.Add("551","用户非本地，请尝试");
ErrCodeHT.Add("452","系统存储不足，要求的操作未执行");
ErrCodeHT.Add("552","过量的存储分配，要求的操作未执行");
ErrCodeHT.Add("553","邮箱名不可用，要求的操作未执行（例如邮箱格式错误）");
ErrCodeHT.Add("432","需要一个密码转换");
ErrCodeHT.Add("534","认证机制过于简单");
ErrCodeHT.Add("538","当前请求的认证机制需要加密");
ErrCodeHT.Add("454","临时认证失败");
ErrCodeHT.Add("530","需要认证");
RightCodeHT.Add("220","服务就绪");
RightCodeHT.Add("250","要求的邮件操作完成");
RightCodeHT.Add("251","用户非本地，将转发向");
RightCodeHT.Add("354","开始邮件输入，以.结束");
RightCodeHT.Add("221","服务关闭传输信道");
RightCodeHT.Add("334","服务器响应验证Base64字符串");
RightCodeHT.Add("235","验证成功");
}
///
/// 将字符串编码为Base64字符串
///
/// 要编码的字符串
private string Base64Encode(string str)
{
byte[] barray;
barray=Encoding.Default.GetBytes(str);
return Convert.ToBase64String(barray);
}
///
/// 将Base64字符串解码为普通字符串
///
/// 要解码的字符串
private string Base64Decode(string str)
{
byte[] barray;
barray=Convert.FromBase64String(str);
return Encoding.Default.GetString(barray);
}
///
/// 发送SMTP命令
///
private bool SendCommand(string str)
{
byte[] WriteBuffer;
if(str==null||str.Trim()==String.Empty)
{
return true;
}
WriteBuffer = Encoding.Default.GetBytes(str);
try
{
ns.Write(WriteBuffer,0,WriteBuffer.Length);
}
catch
{
errmsg="网络连接错误";
return false;
}
return true;
}
///
/// 接收SMTP服务器回应
///
private string RecvResponse()
{
int StreamSize;
string ReturnValue = String.Empty;
byte[] ReadBuffer = new byte[1024] ;
try
{
StreamSize=ns.Read(ReadBuffer,0,ReadBuffer.Length);
}
catch(Exception ex)
{
MessageBox.Show (ex.ToString ());
return "false";
}
if (StreamSize==0)
{
return ReturnValue ;
}
else
{
ReturnValue = Encoding.Default.GetString(ReadBuffer).Substring(0,StreamSize);
return ReturnValue;
}
}
///
/// 与服务器交互，发送一条命令并接收回应。
///
/// 一个要发送的命令
/// 如果错误，要反馈的信息
private bool Dialog(string str,string errstr)
{
if(str==null||str.Trim()=="")
{
return true;
}
if(SendCommand(str))
{
string RR=RecvResponse();
if(RR=="false")
{
return false;
}
try
{
string RRCode=RR.Substring(0,3);
if(RightCodeHT[RRCode]!=null)
{
return true;
}
else
{
if(ErrCodeHT[RRCode]!=null)
{
errmsg+=(RRCode+ErrCodeHT[RRCode].ToString());
errmsg+=enter;
}
else
{
errmsg+=RR;
}
errmsg+=errstr;
return false;
}
}
catch
{
MessageBox.Show ("发送的附件超过本服务器对个人软件的支持！","请检查附件的大小");
return false;
}
}
else
{
return false;
}
}
///
/// 与服务器交互，发送一组命令并接收回应。
///
private bool Dialog(string[] str,string errstr)
{
for(int i=0;i
/// SendEmail
///
/// " + enter;
}
if(!Dialog(SendBuffer,"收件人地址有误"))
{
MessageBox.Show("收件人地址有误");
return false;
}
SendBufferstr="DATA" + enter;
if(!Dialog(SendBufferstr,""))
return false;
SendBufferstr="From:" + FromName + "<" + From +">" +enter;
SendBufferstr += "To:<"+RecipientName+">"+enter;
SendBufferstr+=((Subject==String.Empty || Subject==null)?"Subject:":((Charset=="")?("Subject:" +
Subject):("Subject:" + "=?" + Charset.ToUpper() + "?B?" + Base64Encode(Subject) +"?="))) + enter;
SendBufferstr+="X-Priority:" + priority + enter;
SendBufferstr+="X-Mailer: ArgentSwan Mail Sender" + enter;
SendBufferstr+="MIME-Version: 1.0" + enter;
//MIME定义了5个新的信头字段，可以与原有信头字段一样，用在RF822邮件的首部中。
//1．MIME版本信头字段 格式：MIME-Version:1.0
//2．邮件唯一标识信头字段 格式：Content-ID：唯一标识信件的字符串
//3．邮件内容描述信头字段 格式：Content-Description:描述文本
//4．MIME邮件的内容类型信头字段 格式：Content-Type:主类别标识符/子类别标识符 [；参数列表]
//5．内容传送编码方式信头字段 格式：Content-Transfer-Encoding:编码方式标识符
if(Attachments.Count!=0)
{
//mixed 按照特定顺序的几个独立部分
SendBufferstr+="Content-Type: multipart/mixed;" + enter;
SendBufferstr += " boundary=\"***"+
(Html?"001_yinhu19821115":"001_yinhu19831115")+"***\""+enter+enter;
}
if(Html)
{
if(Attachments.Count==0)
{
//multipart多部分 alternative 不同格式的同一邮件
SendBufferstr += "Content-Type: multipart/alternative;"+enter;//内容格式和分隔符
SendBufferstr += " boundary=\"***003_yinhu19821115***\""+enter+enter;
SendBufferstr += "This is a multi-part message in MIME format."+enter+enter;
}
else
{
SendBufferstr +="This is a multi-part message in MIME format."+enter+enter;
SendBufferstr += "--***001_yinhu19821115***"+enter;
SendBufferstr += "Content-Type: multipart/alternative;"+enter;//内容格式和分隔符
SendBufferstr += " boundary=\"***003_yinhu19821115***\""+enter+enter;
}
SendBufferstr += "--***003_yinhu19821115***"+enter;
SendBufferstr += "Content-Type: text/plain;"+ enter;
SendBufferstr += ((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +
Charset.ToLower() + "\"")) + enter;
SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
SendBufferstr+= Base64Encode("邮件内容为HTML格式，请选择HTML方式查看") + enter + enter;
SendBufferstr += "--***003_yinhu19821115***"+enter;
SendBufferstr+="Content-Type: text/html;" + enter;
SendBufferstr+=((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +
Charset.ToLower() + "\"")) + enter;
SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
SendBufferstr+=Base64Encode(Body)+ enter + enter;
SendBufferstr += "--***003_yinhu19821115***--"+enter;
}
else
{
if(Attachments.Count!=0)
{
SendBufferstr += "--***001_yinhu19831115***"+enter;
}
SendBufferstr+="Content-Type: text/plain;" + enter;
SendBufferstr+=((Charset=="")?(" charset=\"iso-8859-1\""):(" charset=\"" +
Charset.ToLower() + "\"")) + enter;
SendBufferstr+="Content-Transfer-Encoding: base64" + enter + enter;
SendBufferstr+= Base64Encode(Body) + enter;
}
if(Attachments.Count!=0)
{
for(int i=0;i