using System;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Collections;
namespace Huolx.Pubclass
{
/// <summary>
/// <para>支持SMTP服务器认证的邮件发送类</para>
/// <para>属性和方法设置类似于Jmail。</para>
/// <para>Huolx(flycloud@btamail.net.cn)版权所有</para>
/// </summary>
public class ESmtpMail
{
/// <summary>
/// 设定语言代码，默认设定为GB2312，如不需要可设置为""
/// </summary>
public string Charset="GB2312";
/// <summary>
/// 发件人地址
/// </summary>
public string From="";
/// <summary>
/// 发件人姓名
/// </summary>
public string FromName="";
/// <summary>
/// 回复邮件地址
/// </summary>
public string ReplyTo="";
/// <summary>
/// 邮件服务器域名
/// </summary>
private string mailserver="";
/// <summary>
/// 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"
/// </summary>
public string MailDomain
{
set
{
string maidomain=value.Trim();
int tempint;
if(maidomain!="")
{
tempint=maidomain.IndexOf("@");
if(tempint!=-1)
{
string up=maidomain.Substring(0,tempint);
MailServerUserName=up.Substring(0,up.IndexOf(":"));
MailServerPassWord=up.Substring(up.IndexOf(":")+1,up.Length-up.IndexOf(":")-1);
string ms=maidomain.Substring(tempint+1,maidomain.Length-tempint-1);
tempint=ms.IndexOf(":");
if(tempint!=-1)
{
mailserver=ms.Substring(0,tempint);
mailserverport=System.Convert.ToInt32(ms.Substring(tempint+1,ms.Length-tempint-1));
}
}
else
{
tempint=maidomain.IndexOf(":");
if(tempint!=-1)
{
mailserver=maidomain.Substring(0,tempint);
mailserverport=System.Convert.ToInt32(maidomain.Substring(tempint+1,maidomain.Length-tempint-1));
}
else
{
mailserver=maidomain;
}
}
}
}
}
/// <summary>
/// 邮件服务器端口号
/// </summary>
private int mailserverport=25;
/// <summary>
/// 邮件服务器端口号
/// </summary>
public int MailDomainPort
{
set
{
mailserverport=value;
}
}
/// <summary>
/// 是否需要SMTP验证
/// </summary>
private bool ESmtp=false;
/// <summary>
/// SMTP认证时使用的用户名
/// </summary>
private string username="";
/// <summary>
/// SMTP认证时使用的用户名
/// </summary>
public string MailServerUserName
{
set
{
if(value.Trim()!="")
{
username=value.Trim();
ESmtp=true;
}
else
{
username="";
ESmtp=false;
}
}
}
/// <summary>
/// SMTP认证时使用的密码
/// </summary>
private string password="";
/// <summary>
/// SMTP认证时使用的密码
/// </summary>
public string MailServerPassWord
{
set
{
password=value;
}
}
/// <summary>
/// 邮件主题
/// </summary>
public string Subject="";
/// <summary>
/// 是否Html邮件
/// </summary>
public bool Html=false;
/// <summary>
/// 邮件正文
/// </summary>
public string Body="";
/// <summary>
/// 收件人列表
/// </summary>
private Hashtable Recipient=new Hashtable();
/// <summary>
/// 密送收件人列表
/// </summary>
private Hashtable RecipientBCC=new Hashtable();
/// <summary>
/// 邮件发送优先级，可设置为"High","Normal","Low"或"1","3","5"
/// </summary>
private string priority="Normal";
/// <summary>
/// 邮件发送优先级，可设置为"High","Normal","Low"或"1","3","5"
/// </summary>
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;
}
}
}
/// <summary>
/// 错误消息反馈
/// </summary>
private string errmsg;
/// <summary>
/// 错误消息反馈
/// </summary>
public string ErrorMessage
{
get
{
return errmsg;
}
}
/// <summary>
/// 服务器交互记录
/// </summary>
private string logs="";
/// <summary>
/// 服务器交互记录，如发现本组件不能使用的SMTP服务器，请将出错时的Logs发给我（flycloud@btamail.net.cn），我将尽快查明原因。
/// </summary>
public string Logs
{
get
{
return logs;
}
}
private string enter="\r\n";
/// <summary>
/// TcpClient对象，用于连接服务器
/// </summary>
private TcpClient tc;
/// <summary>
/// NetworkStream对象
/// </summary>
private NetworkStream ns;
/// <summary>
/// SMTP错误代码哈希表
/// </summary>
private Hashtable ErrCodeHT = new Hashtable();
/// <summary>
/// SMTP正确代码哈希表
/// </summary>
private Hashtable RightCodeHT = new Hashtable();
/// <summary>
/// SMTP回应代码哈希表
/// </summary>
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<forward-path>");
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<forward-path>");
RightCodeHT.Add("354","开始邮件输入，以<CRLF>.<CRLF>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");
}
/// <summary>
/// 将字符串编码为Base64字符串
/// </summary>
/// <param name="estr">要编码的字符串</param>
private string Base64Encode(string estr)
{
byte[] barray;
barray=Encoding.Default.GetBytes(estr);
return Convert.ToBase64String(barray);
}
/// <summary>
/// 将Base64字符串解码为普通字符串
/// </summary>
/// <param name="dstr">要解码的字符串</param>
private string Base64Decode(string dstr)
{
byte[] barray;
barray=Convert.FromBase64String(dstr);
return Encoding.Default.GetString(barray);
}
public ESmtpMail()
{
}
~esmtpmail()
{
}
/// <summary>
/// 收件人姓名
/// </summary>
public string RecipientName="";
private int RecipientNum=0;//收件人数量
private int RecipientBCCNum=0;//密件收件人数量
/// <summary>
/// 添加一个收件人
/// </summary>
/// <param name="str">收件人地址</param>
public bool AddRecipient(string str)
{
str=str.Trim();
if(str==null||str==""||str.IndexOf("@")==-1)
return true;
if(RecipientNum<10)
{
Recipient.Add(RecipientNum,str);
RecipientNum++;
return true;
}
else
{
errmsg+="收件人过多";
return false;
}
}
/// <summary>
/// 添加一组收件人（不超过10个），参数为字符串数组
/// </summary>
/// <param name="str">保存有收件人地址的字符串数组（不超过10个）</param>
public bool AddRecipient(string[] str)
{
for(int i=0;i<str.Length;i++)
{
if(!AddRecipient(str[i]))
{
return false;
}
}
return true;
}
/// <summary>
/// 添加一个密件收件人
/// </summary>
/// <param name="str">收件人地址</param>
public bool AddRecipientBCC(string str)
{
if(str==null||str.Trim()=="")
return true;
if(RecipientBCCNum<10)
{
RecipientBCC.Add(RecipientBCCNum,str);
RecipientBCCNum++;
return true;
}
else
{
errmsg+="收件人过多";
return false;
}
}
/// <summary>
/// 添加一组密件收件人（不超过10个），参数为字符串数组
/// </summary>
/// <param name="str">保存有收件人地址的字符串数组（不超过10个）</param>
public bool AddRecipientBCC(string[] str)
{
for(int i=0;i<str.Length;i++)
{
if(!AddRecipientBCC(str[i]))
{
return false;
}
}
return true;
}
/// <summary>
/// 发送SMTP命令
/// </summary>
private bool SendCommand(string Command)
{
byte[] WriteBuffer;
if(Command==null||Command.Trim()=="")
{
return true;
}
logs+=Command;
WriteBuffer = Encoding.Default.GetBytes(Command);
try
{
ns.Write(WriteBuffer,0,WriteBuffer.Length);
}
catch
{
errmsg="网络连接错误";
return false;
}
return true;
}
