ConnectCommand.cs类源码-Mail命名空间-代码大全-开发者工具网

1-HttpHelper
- HttpCookieHelper.cs
- HttpHelper.cs
2-数据库
- DbHelperMySQL.cs
- DbHelperOleDb.cs
- DbHelperOra.cs
- DbHelperSQL.cs
- DbHelperSQLite.cs
- DbHelperSQLP.cs
- OracleHelper.cs
- SQLHelper.cs
3-百度相关组件
- BaiduMapHelper.cs
BarCode
- BarCodeToHTML.cs
Chart
- Assistant.cs
- OWCChart11.cs
Config
- ConfigHelper-sufei.cs
- ConfigHelper.cs
Control
- BindDataControl.cs
Convert
- ConvertHelper.cs
- StringPlus.cs
Cookie_Session_Cache
- CacheHelper.cs
- CookieHelper.cs
- DataCache.cs
- SessionHelper.cs
- SessionHelper2.cs
CSV
- CsvHelper.cs
Date
- CNDate.cs
DEncrypt
- DEncrypt.cs
- DESEncrypt.cs
- Encrypt.cs
- HashEncode.cs
- MySecurity.cs
- RSACryption.cs
Download_Up
- DownLoadHelper.cs
- FileDown.cs
- FileUp.cs
- UpLoadFiles.cs
Encoding
- FileEncoding.cs
Excel
- DataToExcel.cs
- ExcelHelper.cs
- ExportExcel.cs
- GridViewExport.cs
File
- DirFileHelper.cs
- FileOperateHelper.cs
- INIFileHelper.cs
FormatDate
- TimeHelper.cs
FTP
- FTPClient.cs
- FTPHelper.cs
- FTPOperater.cs
GridView
- GridViewHelper.cs
Image
- ImageClass.cs
- ImageDown.cs
- ImageUpload.cs
- PicDeal.cs
Input
- InputHelper.cs
Internet_Url
- AdslHelper.cs
- IpHelper.cs
- NetHelper.cs
- UrlOper.cs
IP
- IPHelper.cs
JS
- ExeJsHelper.cs
- JsHelper.cs
JsAlert
- MessageBox.cs
- ShowMessage.cs
Json
- ConvertJson.cs
- JsonHelper.cs
- SerializerJsonHelper.cs
Mail
- ConnectCommand.cs
- ConnectResponse.cs
- DeleCommand.cs
- ListCommand.cs
- ListResponse.cs
- MailHeaders.cs
- MailHelper.cs
- MailMessageEx.cs
- MailPoper.cs
- MailSender.cs
- NoopCommand.cs
- PassCommand.cs
- Pop3Client.cs
- Pop3Command.cs
- Pop3Commands.cs
- Pop3Exception.cs
- Pop3ListItem.cs
- Pop3Response.cs
- Pop3Responses.cs
- Pop3State.cs
- QuitCommand.cs
- RetrCommand.cs
- RetrResponse.cs
- RsetCommand.cs
- SmtpServerHelper.cs
- Stat.cs
- StatCommand.cs
- StatResponse.cs
- TopCommand.cs
- UserCommand.cs
Mime
- MediaTypes.cs
- MimeEntity.cs
- MimeHeaders.cs
- MimeReader.cs
- QuotedPrintableEncoding.cs
Page
- BasePage.cs
- HTMLHelper.cs
- HttpProc.cs
- JavaScriptPlus.cs
- PageHelper.cs
- Utility.cs
- WebSitePathHelper.cs
PinYin
- EcanConvertToCh.cs
- PinYin.cs
Properties
- AssemblyInfo.cs
Random
- BaseRandom.cs
- RandomHelper.cs
Regex
- RegexHelper.cs
ResourceManager
- AppMessage.cs
- ResourceManager.cs
- ResourceManagerWrapper.cs
- Resources.cs
Rmb
- RMB.cs
SegList
- SegList.cs
seo
- SeoHelper.cs
Serialize
- Serialize.cs
- SerializeHelper.cs
Sound
- MediaHandler.cs
Sqlhelper
- SqlHelper.cs
String
- QueryString.cs
- StringHelper.cs
System
- SysHelper.cs
Validate_Tool
- FormulaExpress.cs
- PageValidate.cs
- Tools.cs
- ValidateImg.cs
Video
- VideoConvert.cs
Web
- FilterHelper.cs
- WebHelper.cs
XML
- XmlHelper.cs
- XMLProcess.cs
Yzm
- YZMHelper.cs
Zip
- SharpZip.cs
百度相关组件
- BaiduMapHelper.cs
系统Api
- API.cs
- Mac.cs
- ResourcesApi.cs
- Win32Private.cs
- Win32Public.cs

你现在查看的是ConnectCommand.cs类的源码

/// <summary>
/// 类说明：Assistant
/// 编 码 人：苏飞
/// 联系方式：361983679  
/// 更新网站：http://www.sufeinet.com/thread-655-1-1.html
/// </summary>
using System;
using System.Net.Sockets;
using System.Net.Security;
using System.Security.Authentication;

namespace DotNet.Utilities
{
    /// <summary>
    /// Performs the connect to a Pop3 server and returns a Pop3 
    /// response indicating the attempt to connect results and the
    /// network stream to use for all subsequent Pop3 Commands.
    /// </summary>
    internal sealed class ConnectCommand : Pop3Command<ConnectResponse>
    {
        private TcpClient _client;
        private string _hostname;
        private int _port;
        private bool _useSsl;

/// <summary>
        /// Initializes a new instance of the <see cref="ConnectCommand"/> class.
        /// </summary>
        /// <remarks>
        /// Even though a network stream is provided to the base constructor the stream
        /// does not already exist so we have to send in a dummy stream until the actual
        /// connect has taken place.  Then we'll reset network stream to the 
        /// stream made available by the TcpClient.GetStream() to read the data returned
        /// after a connect.
        /// </remarks>
        /// <param name="client">The client.</param>
        /// <param name="hostname">The hostname.</param>
        /// <param name="port">The port.</param>
        /// <param name="useSsl">if set to <c>true</c> [use SSL].</param>
        public ConnectCommand(TcpClient client, string hostname, int port, bool useSsl)
            : base(new System.IO.MemoryStream(), false, Pop3State.Unknown)
        {
            if (client == null)
            {
                throw new ArgumentNullException("client");
            }

if (string.IsNullOrEmpty(hostname))
            {
                throw new ArgumentNullException("hostname");
            }

if (port < 1)
            {
                throw new ArgumentOutOfRangeException("port");
            }

_client = client;
            _hostname = hostname;
            _port = port;
            _useSsl = useSsl;
        }

/// <summary>
        /// Creates the connect request message.
        /// </summary>
        /// <returns>A byte[] containing connect request message.</returns>
        protected override byte[] CreateRequestMessage()
        {
            return null;
        }

/// <summary>
        /// Executes this instance.
        /// </summary>
        /// <returns></returns>
        internal override ConnectResponse Execute(Pop3State currentState)
        {
            EnsurePop3State(currentState);

try
            {
                _client.Connect(_hostname, _port);

SetClientStream();
            }
            catch (SocketException e)
            {
                throw new Pop3Exception(string.Format("Unable to connect to {0}:{1}.", _hostname, _port), e);
            }

return base.Execute(currentState);
        }

/// <summary>
        /// Sets the client stream.
        /// </summary>
        private void SetClientStream()
        {
            if (_useSsl)
            {
                try
                {
                    NetworkStream = new SslStream(_client.GetStream(), true); //make sure the inner stream stays available for the Pop3Client to make use of.
                    ((SslStream)NetworkStream).AuthenticateAsClient(_hostname);
                }
                catch (ArgumentException e)
                {
                    throw new Pop3Exception("Unable to create Ssl Stream for hostname: " + _hostname, e);
                }
                catch (AuthenticationException e)
                {
                    throw new Pop3Exception("Unable to authenticate ssl stream for hostname: " + _hostname, e);
                }
                catch (InvalidOperationException e)
                {
                    throw new Pop3Exception("There was a problem  attempting to authenticate this SSL stream for hostname: " + _hostname, e);
                }
            } //wrap NetworkStream in an SSL stream
            else
            {
                NetworkStream = _client.GetStream();
            }

}

/// <summary>
        /// Creates the response.
        /// </summary>
        /// <param name="buffer">The buffer.</param>
        /// <returns>
        /// The <c>Pop3Response</c> containing the results of the
        /// Pop3 command execution.
        /// </returns>
        protected override ConnectResponse CreateResponse(byte[] buffer)
        {
            Pop3Response response = Pop3Response.CreateResponse(buffer);
            return new ConnectResponse(response, NetworkStream);
        }
    }
}