SendMail.cs
资源名称:yjal.rar [点击查看]
上传用户:shjujing
上传日期:2022-07-28
资源大小:11244k
文件大小:20k
源码类别:
Email客户端
开发平台:
Visual C++
- 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);
- //
- /// <summary>
- /// 重载的构造函数,以便把相关的附件信息传入
- /// </summary>
- /// <param name="array"></param>
- 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<array.Count ;i++)
- {
- FilePath[i]=array[i].ToString ();
- }
- if(FilePath!=null)
- {
- AddAttachment(FilePath);
- }
- }
- private string enter="rn";
- /// <summary>
- /// 设定语言代码,默认设定为GB2312,如不需要可设置为""
- /// </summary>
- private string _charset="GB2312";
- /// <summary>
- /// 发件人地址
- /// </summary>
- private string _from="";
- /// <summary>
- /// 发件人姓名
- /// </summary>
- private string _fromName="";
- /// <summary>
- /// 回复邮件地址
- /// </summary>
- ///public string ReplyTo="";
- /// <summary>
- /// 收件人列表
- /// </summary>
- private string Recipient;
- /// <summary>
- /// 邮件服务器域名
- /// </summary>
- private string mailserver="";
- /// <summary>
- /// 邮件服务器端口号
- /// </summary>
- private int mailserverport=25;
- /// <summary>
- /// SMTP认证时使用的用户名
- /// </summary>
- private string username="";
- /// <summary>
- /// SMTP认证时使用的密码
- /// </summary>
- private string password="";
- /// <summary>
- /// 是否需要SMTP验证
- /// </summary>
- private bool ESmtp=false;
- /// <summary>
- /// 是否Html邮件
- /// </summary>
- private bool _html=false;
- /// <summary>
- /// 邮件附件列表
- /// </summary>
- private IList Attachments;
- /// <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>
- /// 邮件主题
- /// </summary>
- private string _subject;
- /// <summary>
- /// 邮件正文
- /// </summary>
- private string _body;
- /// <summary>
- /// 错误消息反馈
- /// </summary>
- private string errmsg;
- /// <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>
- /// 邮件主题
- /// </summary>
- public string Subject
- {
- get
- {
- return this._subject;
- }
- set
- {
- this._subject = value;
- }
- }
- /// <summary>
- /// 邮件正文
- /// </summary>
- public string Body
- {
- get
- {
- return this._body;
- }
- set
- {
- this._body = value;
- }
- }
- /// <summary>
- /// 发件人地址
- /// </summary>
- public string From
- {
- get
- {
- return _from;
- }
- set
- {
- this._from = value;
- }
- }
- /// <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
- {
- get
- {
- return this._charset;
- }
- set
- {
- this._charset = value;
- }
- }
- /// <summary>
- /// 发件人姓名
- /// </summary>
- public string FromName
- {
- get
- {
- return this._fromName;
- }
- set
- {
- this._fromName = value;
- }
- }
- /// <summary>
- /// 收件人姓名
- /// </summary>
- public string RecipientName
- {
- get
- {
- return this.Recipient;
- }
- set
- {
- this.Recipient = value;
- }
- }
- /// <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
- {
- mailserver=value;
- }
- }
- /// <summary>
- /// 邮件服务器端口号
- /// </summary>
- public int MailDomainPort
- {
- set
- {
- mailserverport=value;
- }
- }
- /// <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>
- public string MailServerPassWord
- {
- set
- {
- password=value;
- }
- }
- /// <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>
- /// 是否Html邮件
- /// </summary>
- public bool Html
- {
- get
- {
- return this._html;
- }
- set
- {
- this._html = value;
- }
- }
- /// <summary>
- /// 错误消息反馈
- /// </summary>
- public string ErrorMessage
- {
- get
- {
- return errmsg;
- }
- }
- public bool eSmtp
- {
- get
- {
- return this.ESmtp;
- }
- set
- {
- this.ESmtp =value;
- }
- }
- /// <summary>
- /// 添加邮件附件
- /// </summary>
- /// <param name="FilePath">附件绝对路径</param>
- public void AddAttachment(params string[] FilePath)
- {
- try
- {
- if(FilePath==null)
- {
- throw(new ArgumentNullException("FilePath"));
- }
- for(int i=0;i<FilePath.Length;i++)
- {
- Attachments.Add(FilePath[i]);
- }
- }
- catch(Exception ex)
- {
- MessageBox.Show (ex.ToString ());
- }
- }
- /// <summary>
- /// 得到上传附件的文件流
- /// </summary>
- /// <param name="FilePath">附件的绝对路径</param>
- 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;
- }
- }
- /// <summary>
- /// 发送邮件方法,所有参数均通过属性设置。
- /// </summary>
- public bool Send()
- {
- if(mailserver.Trim()=="")
- {
- MessageBox.Show ("必须指定SMTP服务器");
- return false;
- }
- return SendEmail();
- }
- /// <summary>
- /// 发送邮件方法
- /// </summary>
- /// <param name="smtpserver">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();
- }
- /// <summary>
- /// 发送邮件方法
- /// </summary>
- /// <param name="smtpserver">smtp服务器信息,如"username:password@www.smtpserver.com:25",也可去掉部分次要信
- /// <param name="from">发件人mail地址</param>
- /// <param name="fromname">发件人姓名</param>
- /// <param name="to">收件人地址</param>
- /// <param name="toname">收件人姓名</param>
- /// <param name="html">是否HTML邮件</param>
- /// <param name="subject">邮件主题</param>
- /// <param name="body">邮件正文</param>
- 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();
- }
- /// <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<enter>.<enter>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="str">要编码的字符串</param>
- private string Base64Encode(string str)
- {
- byte[] barray;
- barray=Encoding.Default.GetBytes(str);
- return Convert.ToBase64String(barray);
- }
- /// <summary>
- /// 将Base64字符串解码为普通字符串
- /// </summary>
- /// <param name="str">要解码的字符串</param>
- private string Base64Decode(string str)
- {
- byte[] barray;
- barray=Convert.FromBase64String(str);
- return Encoding.Default.GetString(barray);
- }
- /// <summary>
- /// 发送SMTP命令
- /// </summary>
- 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;
- }
- /// <summary>
- /// 接收SMTP服务器回应
- /// </summary>
- 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;
- }
- }
- /// <summary>
- /// 与服务器交互,发送一条命令并接收回应。
- /// </summary>
- /// <param name="str">一个要发送的命令</param>
- /// <param name="errstr">如果错误,要反馈的信息</param>
- 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;
- }
- }
- /// <summary>
- /// 与服务器交互,发送一组命令并接收回应。
- /// </summary>
- private bool Dialog(string[] str,string errstr)
- {
- for(int i=0;i<str.Length;i++)
- {
- //如果在身份验证阶段有一个不成功,就返回错误标志位
- if(!Dialog(str[i],""))
- {
- errmsg+=enter;
- errmsg+=errstr;
- return false;
- }
- }
- //身份验证全部正确的话,则返回正确标志位
- return true;
- }
- /// <summary>
- /// SendEmail
- /// </summary>
- /// <returns></returns>
- private bool SendEmail()
- {
- try
- {
- tc=new TcpClient(mailserver,mailserverport);
- }
- catch
- {
- MessageBox.Show ("连接失败","请确认");
- return false;
- }
- ns = tc.GetStream();
- SMTPCodeAdd();
- //验证网络连接是否正确
- if(RightCodeHT[RecvResponse().Substring(0,3)]==null)
- {
- errmsg="网络连接失败";
- return false;
- }
- string[] SendBuffer;
- string SendBufferstr;
- //进行SMTP验证
- if(ESmtp)
- {
- SendBuffer=new String[4];
- SendBuffer[0]="EHLO " + mailserver + enter;
- SendBuffer[1]="AUTH LOGIN" + enter;
- SendBuffer[2]=Base64Encode(username) + enter;
- SendBuffer[3]=Base64Encode(password) + enter;
- if(!Dialog(SendBuffer,"SMTP服务器验证失败,请核对用户名和密码。"))
- {
- MessageBox.Show ("SMTP服务器验证失败,请核对用户名和密码。");
- return false;
- }
- }
- else
- {
- SendBufferstr="HELO " + mailserver + enter;
- if(!Dialog(SendBufferstr,""))
- return false;
- }
- //
- SendBufferstr="MAIL FROM:<" + From + ">" + enter;
- if(!Dialog(SendBufferstr,"发件人地址错误,或不能为空"))
- {
- MessageBox.Show("发件人地址错误,或不能为空");
- return false;
- }
- //把传过来的收件人的地址分割然后提交给服务器
- string split=",";
- string []address=Regex.Split (RecipientName,split);
- SendBuffer=new string [address.Length];
- for(int i=0;i<SendBuffer.Length;i++)
- {
- SendBuffer[i]="RCPT TO:<" +address[i]+">" + 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 <CRLF>
- //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 <CRLF>
- //3.邮件内容描述信头字段 格式:Content-Description:描述文本 <CRLF>
- //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] <CRLF>
- //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 <CRLF>
- 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<Attachments.Count;i++)
- {
- string filepath = Attachments[i].ToString();
- SendBufferstr += "--***"+
- (Html?"001_yinhu19821115":"001_yinhu19831115") +"***"+enter;
- //用于在电子邮件中传输一个含有任意数据的实体。内容是一个未解释的字节序列。
- //当内容类型未知或者对数据没有具体定义媒体类别时,通常使用它描述
- SendBufferstr += "Content-Type: application/octet-stream"+enter;
- SendBufferstr += " name="=?"+Charset.ToUpper()+"?B?"+Base64Encode
- (filepath.Substring(filepath.LastIndexOf("\")+1))+"?=""+enter;
- SendBufferstr += "Content-Transfer-Encoding: base64"+enter;
- SendBufferstr += "Content-Disposition: attachment;"+enter;
- SendBufferstr += " filename="=?"+Charset.ToUpper()+"?B?"+Base64Encode
- (filepath.Substring(filepath.LastIndexOf("\")+1))+"?=""+enter+enter;
- SendBufferstr += GetStream(filepath)+enter+enter;
- }
- SendBufferstr += "--***"+ (Html?"001_yinhu19821115":"001_yinhu19831115")
- +"***--"+enter+enter;
- }
- SendBufferstr += enter + "." + enter;
- if(!Dialog(SendBufferstr,"错误信件信息"))
- return false;
- SendBufferstr="QUIT" + enter;
- if(!Dialog(SendBufferstr,"断开连接时错误"))
- return false;
- ns.Close();
- tc.Close();
- return true;
- }
- }
- }