using System;using System.Text;using System.IO;using System.Net;using System.Net.Sockets;namespace OSLeagueForumXP.Components
{
/// <summary>
/// TcpClient派生类，用来进行SMTP服务器的连接工作
/// </summary> public class SMTPClient : TcpClient { /// <summary> /// 进行SMTP服务器的连接 /// </summary> public SMTPClient() { } /// <summary> /// 是否以连接 /// </summary> /// <returns>连接为True，不连接为False</returns> public bool isConnected() { return Active; } /// <summary> /// 向服务器发送命令 /// </summary> /// <param name="Command">命令</param> public void SendCommandToServer(string Command) { NetworkStream ns = this.GetStream() ; byte[] WriteBuffer ; WriteBuffer = new byte[1024] ; WriteBuffer = Encoding.Default.GetBytes(Command); ns.Write(WriteBuffer,0,WriteBuffer.Length); return ; } /// <summary> /// 取得服务器反馈信息 /// </summary> /// <returns>字符串</returns> public string GetServerResponse() { int StreamSize ; string ReturnValue = "" ; byte[] ReadBuffer ; NetworkStream ns = this.GetStream() ; ReadBuffer = new byte[1024] ; StreamSize = ns.Read(ReadBuffer,0,ReadBuffer.Length); if (StreamSize==0) { return ReturnValue ; } else { ReturnValue = Encoding.Default.GetString(ReadBuffer); return ReturnValue; } } /// <summary> /// 判断返回的信息中是否有指定的SMTP代码出现 /// </summary> /// <param name="Message">信息</param> /// <param name="SMTPCode">SMTP代码</param> /// <returns>存在返回False，不存在返回True</returns> public bool DoesStringContainSMTPCode(string Message,string SMTPCode) { return(Message.IndexOf(SMTPCode,0,10)==-1)?false:true; } } //结束类 /// <summary> /// 发送邮件类 /// </summary> public class SMTPMail { /// <summary> /// 错误反馈信息 /// </summary> private string strErrMessage = null; /// <summary> /// SMTP服务器反馈的信息 /// </summary> private string strResponse; /// <summary> /// 构造函数 /// </summary> public SMTPMail() { strErrMessage = ""; strResponse = ""; } /// <summary> /// 取得错误反馈信息 /// </summary> public string ErrorMessage { get { return strErrMessage ; } } /// <summary> /// 取得SMTP服务器反馈的信息 /// </summary> public string ServerResponse { get { return strResponse; } } /// <summary> /// 邮件发送优先级 /// </summary> public enum Prioritys { /// <summary> /// 最高级别 /// </summary> HIGH = 1, /// <summary> /// 默认级别 /// </summary> NORMAL = 3, /// <summary> /// 最低级别 /// </summary> LOW = 5 } /// <summary> /// 进行BASE64编码 /// </summary> /// <param name="Data">数据</param> /// <returns>字符串</returns> private string Encode(string Data) { byte[] bteData; bteData = Encoding.Default.GetBytes(Data); return Convert.ToBase64String(bteData); } /// <summary> /// 进行BASE64解码 /// </summary> /// <param name="Data">数据</param> /// <returns>字符串</returns> private string Decode(string Data) { byte[] bteData; bteData = Convert.FromBase64String(Data); return Encoding.Default.GetString(bteData); } /// <summary> /// 发送邮件 /// </summary> /// <param name="SmtpHost">SMTP服务器</param> /// <param name="Port">SMTP服务器端口</param> /// <param name="From">邮件发送者</param> /// <param name="DisplayFromName">显示的发送者名称</param> /// <param name="Authentication">是否进行认证</param> /// <param name="UserName">认证用户名</param> /// <param name="Password">认证密码</param> /// <param name="To">邮件接收者</param> /// <param name="DisplayToName">显示的接收者名称</param> /// <param name="Priority">优先级</param> /// <param name="Html">是否为HTML</param> /// <param name="Base">URL</param> /// <param name="Subject">邮件主题</param> /// <param name="Message">邮件内容</param> public void SendMail(string SmtpHost,int Port,string From,string DisplayFromName,bool Authentication,string UserName,string Password,string To,string DisplayToName,Prioritys Priority,bool Html,string Base,string Subject,string Message) { try { string strResponseNumber; SMTPClient smtpcMail = new SMTPClient(); smtpcMail.Connect(SmtpHost,Port); bool bolConnect = smtpcMail.isConnected(); //判断是否进行了连接 if (!bolConnect) { strErrMessage = "Smtp服务器连接失败
"; return; } //读取反馈信息 strResponseNumber = smtpcMail.GetServerResponse(); if (smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"220")) { this.strResponse += strResponseNumber; } else { this.strErrMessage = "连接失败" + strResponseNumber; return ; } int intBuffer = 0; int intArray = 0; if(Authentication) { intBuffer = 9; } else { intBuffer = 6; } string[] strSendBuffer = new string[intBuffer]; string[] strResponseCode = {"220","250","251","354","221","334","235"}; // success codes from SMTP server string strData = ""; strData = string.Concat("HELO ",SmtpHost); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; if(Authentication) { strData = ""; strData = string.Concat("AUTH LOGIN","\r\n"); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; strData = ""; strData = string.Concat(Encode(UserName),"\r\n"); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; strData = ""; strData = string.Concat(Encode(Password),"\r\n"); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; } strData = ""; strData = string.Concat("MAIL FROM: ","<" + From + ">" + "AUTH=" + From); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; strData = ""; strData = string.Concat("RCPT TO: ","<" + To + ">"); strData = string.Concat(strData,"\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; strData = "" ; strData = string.Concat("DATA","\r\n"); strSendBuffer[intArray] = strData ; intArray = intArray+1; strData = "" ; strData = string.Concat("From: ",DisplayFromName + "<" + From + ">"); strData = string.Concat(strData,"\r\n" ); strData = string.Concat(strData,"To: " ); strData = string.Concat(strData,DisplayToName + "<" + To + ">"); strData = string.Concat(strData,"\r\n" ); strData = string.Concat(strData,"Subject: " ); strData = string.Concat(strData,Subject); strData = string.Concat(strData,"\r\n"); strData = string.Concat(strData,"MIME-Version: 1.0" ); strData = string.Concat(strData,"\r\n"); strData = string.Concat(strData,"X-Priority: " + Priority); strData = string.Concat(strData,"\r\n"); strData = string.Concat(strData,"X-MSMail-Priority: " + Priority); strData = string.Concat(strData,"\r\n"); if(Html) { strData = string.Concat(strData,"Content-Type: text/html;" ); } else { strData = string.Concat(strData,"Content-Type: text/plain;" ); } strData = string.Concat(strData,"\r\n"); strData = string.Concat(strData,"charset=\"iso-8859-1\"" ); strData = string.Concat(strData,"\r\n"); if(Html == true) { strData = string.Concat(strData,"Content-Transfer-Encoding: text/html;" ); } else { strData = string.Concat(strData,"Content-Transfer-Encoding: text/plain;" ); } strData = string.Concat(strData,"\r\n"); strData = string.Concat(strData,"Content-Base: \"" + Base + "\"" ); strData = string.Concat(strData,"\r\n" + "\r\n"); strData = string.Concat(strData,Message); strData = string.Concat(strData,"\r\n.\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; strData = "" ; strData = string.Concat(strData,"QUIT\r\n"); strSendBuffer[intArray] = strData; intArray = intArray+1; int i = 0 ; while(i < strSendBuffer.Length) { smtpcMail.SendCommandToServer(strSendBuffer[i]); strResponseNumber = smtpcMail.GetServerResponse(); for(int j=0;j<strResponseCode.Length;j++) { if (smtpcMail.DoesStringContainSMTPCode(strResponseNumber,strResponseCode[j])) { this.strResponse += strResponseNumber; this.strResponse += "<br>"; break; } else { if(j==strResponseCode.Length-1) { if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"500")) { this.strErrMessage = "邮箱地址错误"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"501")) { this.strErrMessage = "参数格式错误"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"502")) { this.strErrMessage = "命令不可实现"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"503")) { this.strErrMessage = "服务器需要SMTP验证"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"504")) { this.strErrMessage = "命令参数不可实现"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"421")) { this.strErrMessage = "服务未就绪，关闭传输信道"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"450")) { this.strErrMessage = "要求的邮件操作未完成，邮箱不可用（例如，邮箱忙）"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"550")) { this.strErrMessage = "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）"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"451")) { this.strErrMessage = "放弃要求的操作；处理过程中出错"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"551")) { this.strErrMessage = "用户非本地，请尝试<forward-path>"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"452")) { this.strErrMessage = "系统存储不足，要求的操作未执行"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"552")) { this.strErrMessage = "过量的存储分配，要求的操作未执行"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"553")) { this.strErrMessage = "邮箱名不可用，要求的操作未执行（例如邮箱格式错误）"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"553")) { this.strErrMessage = "邮箱名不可用，要求的操作未执行（例如邮箱格式错误）"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"432")) { this.strErrMessage = "需要一个密码转换"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"534")) { this.strErrMessage = "认证机制过于简单"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"538")) { this.strErrMessage = "当前请求的认证机制需要加密"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"454")) { this.strErrMessage = "临时认证失败"; } else if(!smtpcMail.DoesStringContainSMTPCode(strResponseNumber,"530")) { this.strErrMessage = "需要认证"; } return; } } } i++ ; } // 结束循环 } catch(SocketException err) { this.strErrMessage += err.Message + " " + err.StackTrace; } catch(Exception e) { this.strErrMessage += e.Message + " " + e.StackTrace; } } //结束邮件发送方法 } // 结束类
}