using system;
using system.text;
using system.io;
using system.net;
using system.net.sockets;
using system.collections;
namespace skydev.web.mail
{
public enum mailformat{text,html};
public enum mailpriority{low=1,normal=3,high=5};
#region class mailattachments
public class mailattachments
{
private const int maxattachmentnum=10;
private ilist _attachments;
public mailattachments()
{
_attachments=new arraylist();
}
public string this[int index]
{
get { return (string)_attachments[index];}
}
/// <summary>
/// 添加邮件附件
/// </summary>
/// <param name="filepath">附件的绝对路径</param>
public void add(params string[] filepath)
{
if(filepath==null)
{
throw(new argumentnullexception("非法的附件"));
}
else
{
for(int i=0;i<filepath.length;i++)
{
add(filepath[i]);
}
}
}
/// <summary>
/// 添加一个附件,当指定的附件不存在时，忽略该附件，不产生异常。
/// </summary>
/// <param name="filepath">附件的绝对路径</param>
public void add(string filepath)
{
//当附件存在时才加入,否则忽略
if (system.io.file.exists(filepath))
{
if (_attachments.count<maxattachmentnum)
{
_attachments.add(filepath);
}
}
}
public void clear()//清除所有附件
{
_attachments.clear();
}
public int count//获取附件个数
{
get { return _attachments.count;}
}
}
#endregion//end class mailattachments
#region class mailmessage
/// <summary>
/// mailmessage 表示smtp要发送的一封邮件的消息。
/// </summary>
public class mailmessage
{
private const int maxrecipientnum=10;
public mailmessage()
{
_recipients=new arraylist();//收件人列表
_attachments=new mailattachments();//附件
_bodyformat=mailformat.text;//缺省的邮件格式为text
_priority=mailpriority.normal;
_charset="gb2312";
}
/// <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 _charset;}
set { _charset=value;}
}
public string from
{
get{ return _from;}
set { _from=value;}
}
public string fromname
{
get { return _fromname;}
set { _fromname=value;}
}
public string body
{
get { return _body;}
set { _body=value;}
}
public string subject
{
get { return _subject;}
set { _subject=value;}
}
public mailattachments attachments
{
get {return _attachments;}
set { _attachments=value;}
}
public mailpriority priority
{
get { return _priority;}
set { _priority=value;}
}
public ilist recipients
{
get { return _recipients;}
}
/// <summary>
/// 增加一个收件人地址
/// </summary>
/// <param name="recipient">收件人的email地址</param>
public void addrecipients(string recipient)
{
//先检查邮件地址是否符合规范
if (_recipients.count<maxrecipientnum)
{
_recipients.add(recipient);//增加到收件人列表
}
}
public void addrecipients(params string[] recipient)
{
