• Web服务器(CassiniDev的裁减版)


     做此程序的原因是将软件部署简化,省去IIS的麻烦部署,减少项目实施人员的工作量和工作复杂度

    Server sv = new Server(8000, "/", @"D:\web", IPAddress.Any, null, "Login.aspx");
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  Copyright (c) Microsoft Corporation. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    using System.Collections.Generic;
    using System.Diagnostics;
    using System.Globalization;
    using System.IO;
    using System.Net;
    using System.Net.Sockets;
    using System.Reflection;
    using System.Runtime.Remoting;
    using System.Security.Permissions;
    using System.Security.Principal;
    using System.Text;
    using System.Threading;
    using System.Web;
    using System.Web.Hosting;
    
    
    #endregion
    
    namespace SimpleWebServer
    {
        ///<summary>
        ///</summary>
        [PermissionSet(SecurityAction.LinkDemand, Name = "Everything"),
         PermissionSet(SecurityAction.InheritanceDemand, Name = "FullTrust")]
        public class Server : MarshalByRefObject, IDisposable
        {
            ///<summary>
            ///</summary>
            public List<string> Plugins = new List<string>();
            ///<summary>
            ///</summary>
            public readonly ApplicationManager ApplicationManager;
    
            private readonly bool _disableDirectoryListing;
    
            private readonly string _hostName;
    
            private readonly IPAddress _ipAddress;
    
            private readonly object _lockObject;
    
            private readonly string _physicalPath;
    
            private readonly int _port;
            private readonly bool _requireAuthentication;
            //private readonly int _timeoutInterval;
            private readonly string _virtualPath;
            private bool _disposed;
    
            private Host _host;
    
            private IntPtr _processToken;
    
            private string _processUser;
    
            //private int _requestCount;
    
            private bool _shutdownInProgress;
    
            private Socket _socket;
    
            //private Timer _timer;
    
            private string _appId;
    
            private string _dfPage;
            ///<summary>
            ///</summary>
            public string AppId
            {
                get { return _appId; }
            }
            ///<summary>
            ///</summary>
            public AppDomain HostAppDomain
            {
                get
                {
                    if (_host == null)
                    {
                        GetHost();
                    }
                    if (_host != null)
                    {
                        return _host.AppDomain;
                    }
                    return null;
                }
            }
    
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            public Server(int port, string virtualPath, string physicalPath)
                : this(port, virtualPath, physicalPath, false, false)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="physicalPath"></param>
            public Server(int port, string physicalPath)
                : this(port, "/", physicalPath, IPAddress.Loopback)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="ipAddress"></param>
            ///<param name="hostName"></param>
            ///<param name="requireAuthentication"></param>
            public Server(int port, string virtualPath, string physicalPath, IPAddress ipAddress, string hostName)
                : this(port, virtualPath, physicalPath, ipAddress, hostName,false, false, null)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="requireAuthentication"></param>
            public Server(int port, string virtualPath, string physicalPath, bool requireAuthentication)
                : this(port, virtualPath, physicalPath, requireAuthentication, false)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="ipAddress"></param>
            ///<param name="hostName"></param>
            public Server(int port, string virtualPath, string physicalPath, IPAddress ipAddress, string hostName,string dfPage)
                : this(port, virtualPath, physicalPath, ipAddress, hostName, false, false, dfPage)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="ipAddress"></param>
            ///<param name="hostName"></param>
            ///<param name="requireAuthentication"></param>
            ///<param name="disableDirectoryListing"></param>
            public Server(int port, string virtualPath, string physicalPath, IPAddress ipAddress, string hostName,
                          bool requireAuthentication, bool disableDirectoryListing, string dfPage)
                : this(port, virtualPath, physicalPath, requireAuthentication, disableDirectoryListing)
            {
                _ipAddress = ipAddress;
                _hostName = hostName;
                if (!String.IsNullOrEmpty(dfPage))
                    dfPage.TrimStart('/');
                _dfPage = "/" + dfPage;
                //_timeoutInterval = timeout;
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="ipAddress"></param>
            public Server(int port, string virtualPath, string physicalPath, IPAddress ipAddress)
                : this(port, virtualPath, physicalPath, ipAddress, null, false, false , null)
            {
            }
    
            ///<summary>
            ///</summary>
            ///<param name="port"></param>
            ///<param name="virtualPath"></param>
            ///<param name="physicalPath"></param>
            ///<param name="requireAuthentication"></param>
            ///<param name="disableDirectoryListing"></param>
            public Server(int port, string virtualPath, string physicalPath, bool requireAuthentication,
                          bool disableDirectoryListing)
            {
                try
                {
                    Assembly.ReflectionOnlyLoad("Common.Logging");
                }
                // ReSharper disable EmptyGeneralCatchClause
                catch
                // ReSharper restore EmptyGeneralCatchClause
                {
                }
                _ipAddress = IPAddress.Loopback;
                _requireAuthentication = requireAuthentication;
                _disableDirectoryListing = disableDirectoryListing;
                _lockObject = new object();
                _port = port;
                _virtualPath = virtualPath;
                _physicalPath = Path.GetFullPath(physicalPath);
                _physicalPath = _physicalPath.EndsWith("\\", StringComparison.Ordinal)
                                    ? _physicalPath
                                    : _physicalPath + "\\";
    
                ApplicationManager = ApplicationManager.GetApplicationManager();
                string uniqueAppString = string.Concat(virtualPath, physicalPath,":",_port.ToString()).ToLowerInvariant();
                _appId = (uniqueAppString.GetHashCode()).ToString("x", CultureInfo.InvariantCulture);
                ObtainProcessToken();
            }
    
         
    
            
    
            ///<summary>
            ///</summary>
            public bool DisableDirectoryListing
            {
                get { return _disableDirectoryListing; }
            }
    
            ///<summary>
            ///</summary>
            public bool RequireAuthentication
            {
                get { return _requireAuthentication; }
            }
    
            /////<summary>
            /////</summary>
            //public int TimeoutInterval
            //{
            //    get { return _timeoutInterval; }
            //}
    
            ///<summary>
            ///</summary>
            public string HostName
            {
                get { return _hostName; }
            }
    
            ///<summary>
            ///</summary>
    // ReSharper disable InconsistentNaming
            public IPAddress IPAddress
    // ReSharper restore InconsistentNaming
            {
                get { return _ipAddress; }
            }
    
            ///<summary>
            ///</summary>
            public string PhysicalPath
            {
                get { return _physicalPath; }
            }
    
            ///<summary>
            ///</summary>
            public int Port
            {
                get { return _port; }
            }
    
            ///<summary>
            ///</summary>
            public string RootUrl
            {
                get
                {
                    string hostname = _hostName;
                    if (string.IsNullOrEmpty(_hostName))
                    {
                        if (_ipAddress.Equals(IPAddress.Loopback) || _ipAddress.Equals(IPAddress.IPv6Loopback) ||
                            _ipAddress.Equals(IPAddress.Any) || _ipAddress.Equals(IPAddress.IPv6Any))
                        {
                            hostname = "localhost";
                        }
                        else
                        {
                            hostname = _ipAddress.ToString();
                        }
                    }
    
                    return _port != 80
                               ?
                                   String.Format("http://{0}:{1}{2}", hostname, _port, _virtualPath)
                               :
                        //FIX: #12017 - TODO:TEST
                           string.Format("http://{0}{1}", hostname, _virtualPath);
                }
            }
    
            ///<summary>
            ///</summary>
            public string VirtualPath
            {
                get { return _virtualPath; }
            }
    
            #region IDisposable Members
    
            /// <summary>
            /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
            /// </summary>
            /// <filterpriority>2</filterpriority>
            public void Dispose()
            {
                if (!_disposed)
                {
                    ShutDown();
                }
                _disposed = true;
                GC.SuppressFinalize(this);
            }
    
            #endregion
    
            ///<summary>
            ///</summary>
            public event EventHandler<RequestEventArgs> RequestComplete;
    
            /////<summary>
            /////</summary>
            //public event EventHandler TimedOut;
    
            ///<summary>
            ///</summary>
            ///<returns></returns>
            public IntPtr GetProcessToken()
            {
                return _processToken;
            }
    
            ///<summary>
            ///</summary>
            ///<returns></returns>
            public string GetProcessUser()
            {
                return _processUser;
            }
    
            ///<summary>
            ///</summary>
            public void HostStopped()
            {
                _host = null;
            }
    
            /// <summary>
            /// Obtains a lifetime service object to control the lifetime policy for this instance.
            /// </summary>
            /// <returns>
            /// An object of type <see cref="T:System.Runtime.Remoting.Lifetime.ILease"/> used to control the lifetime policy for this instance. This is the current lifetime service object for this instance if one exists; otherwise, a new lifetime service object initialized to the value of the <see cref="P:System.Runtime.Remoting.Lifetime.LifetimeServices.LeaseManagerPollTime"/> property.
            /// </returns>
            /// <exception cref="T:System.Security.SecurityException">The immediate caller does not have infrastructure permission. 
            ///                 </exception><filterpriority>2</filterpriority><PermissionSet><IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="RemotingConfiguration, Infrastructure"/></PermissionSet>
            [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.Infrastructure)]
            public override object InitializeLifetimeService()
            {
                // never expire the license
                return null;
            }
    
            // called at the end of request processing
            // to disconnect the remoting proxy for Connection object
            // and allow GC to pick it up
            /// <summary>
            /// </summary>
            /// <param name="conn"></param>
            /// <param name="userName"></param>
            public void OnRequestEnd(Connection conn)
            {
                try
                {
                    OnRequestComplete(conn.Id);
                }
                catch
                {
                    // swallow - we don't want consumer killing the server
                }
                RemotingServices.Disconnect(conn);
                //DecrementRequestCount();
            }
    
            ///<summary>
            ///</summary>
            public void Start()
            {
                _socket = CreateSocketBindAndListen(AddressFamily.InterNetwork, _ipAddress, _port);
    
                //start the timer
                //DecrementRequestCount();
    
                ThreadPool.QueueUserWorkItem(delegate
                    {
                        while (!_shutdownInProgress)
                        {
                            try
                            {
                                Socket acceptedSocket = _socket.Accept();
    
                                ThreadPool.QueueUserWorkItem(delegate
                                    {
                                        if (!_shutdownInProgress)
                                        {
                                            Connection conn = new Connection(this, acceptedSocket);
    
                                            if (conn.WaitForRequestBytes() == 0)
                                            {
                                                conn.WriteErrorAndClose(400);
                                                return;
                                            }
    
                                            Host host = GetHost();
    
                                            if (host == null)
                                            {
                                                conn.WriteErrorAndClose(500);
                                                return;
                                            }
    
                                            //IncrementRequestCount();
                                            host.ProcessRequest(conn,_dfPage);
                                        }
                                    });
                            }
                            catch
                            {
                                Thread.Sleep(100);
                            }
                        }
                    });
            }
    
    
            /// <summary>
            /// Allows an <see cref="T:System.Object"/> to attempt to free resources and perform other cleanup operations before the <see cref="T:System.Object"/> is reclaimed by garbage collection.
            /// </summary>
            ~Server()
            {
                Dispose();
            }
    
    
            private static Socket CreateSocketBindAndListen(AddressFamily family, IPAddress address, int port)
            {
                Socket socket = new Socket(family, SocketType.Stream, ProtocolType.Tcp);
                socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
                socket.Bind(new IPEndPoint(address, port));
                socket.Listen((int)SocketOptionName.MaxConnections);
                return socket;
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="virtualPath"></param>
            /// <param name="physicalPath"></param>
            /// <param name="hostType"></param>
            /// <param name="port"></param>
            /// <returns></returns>
            /// <remarks>
            /// This is Dmitry's hack to enable running outside of GAC.
            /// There are some errors being thrown when running in proc
            /// </remarks>
            private object CreateWorkerAppDomainWithHost(string virtualPath, string physicalPath, Type hostType,int port)
            {
    
    
                // create BuildManagerHost in the worker app domain
                //ApplicationManager appManager = ApplicationManager.GetApplicationManager();
                Type buildManagerHostType = typeof(HttpRuntime).Assembly.GetType("System.Web.Compilation.BuildManagerHost");
                IRegisteredObject buildManagerHost = ApplicationManager.CreateObject(_appId, buildManagerHostType, virtualPath,
                                                                              physicalPath, false);
    
                // call BuildManagerHost.RegisterAssembly to make Host type loadable in the worker app domain
                buildManagerHostType.InvokeMember("RegisterAssembly",
                                                  BindingFlags.Instance | BindingFlags.InvokeMethod | BindingFlags.NonPublic,
                                                  null,
                                                  buildManagerHost,
                                                  new object[] { hostType.Assembly.FullName, hostType.Assembly.Location });
    
                // create Host in the worker app domain
                // FIXME: getting FileLoadException Could not load file or assembly 'WebDev.WebServer20, Version=4.0.1.6, Culture=neutral, PublicKeyToken=f7f6e0b4240c7c27' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418)
                // when running dnoa 3.4 samples - webdev is registering trust somewhere that we are not
                return ApplicationManager.CreateObject(_appId, hostType, virtualPath, physicalPath, false);
            }
    
            //private void DecrementRequestCount()
            //{
            //    lock (_lockObject)
            //    {
            //        _requestCount--;
    
            //        if (_requestCount < 1)
            //        {
            //            _requestCount = 0;
    
            //            if (_timeoutInterval > 0 && _timer == null)
            //            {
            //                _timer = new Timer(TimeOut, null, _timeoutInterval, Timeout.Infinite);
            //            }
            //        }
            //    }
            //}
    
            private Host GetHost()
            {
                if (_shutdownInProgress)
                    return null;
                Host host = _host;
                if (host == null)
                {
    #if NET40
                    object obj2 = new object();
                    bool flag = false;
                    try
                    {
                        Monitor.Enter(obj2 = _lockObject, ref flag);
                        host = _host;
                        if (host == null)
                        {
                            host = (Host)CreateWorkerAppDomainWithHost(_virtualPath, _physicalPath, typeof(Host),Port);
                            host.Configure(this, _port, _virtualPath, _physicalPath, _requireAuthentication, _disableDirectoryListing);
                            _host = host;
                        }
                    }
                    finally
                    {
                        if (flag)
                        {
                            Monitor.Exit(obj2);
                        }
                    }
    #else
    
                    lock (_lockObject)
                    {
                        host = _host;
                        if (host == null)
                        {
                            host = (Host)CreateWorkerAppDomainWithHost(_virtualPath, _physicalPath, typeof(Host),Port);
                            host.Configure(this, _port, _virtualPath, _physicalPath, _requireAuthentication, _disableDirectoryListing);
                            _host = host;
                        }
                    }
    
    #endif
                }
    
                return host;
            }
    
            //private void IncrementRequestCount()
            //{
    
            //    lock (_lockObject)
            //    {
            //        _requestCount++;
    
            //        if (_timer != null)
            //        {
    
            //            _timer.Dispose();
            //            _timer = null;
            //        }
            //    }
            //}
    
    
            private void ObtainProcessToken()
            {
                if (Interop.ImpersonateSelf(2))
                {
                    Interop.OpenThreadToken(Interop.GetCurrentThread(), 0xf01ff, true, ref _processToken);
                    Interop.RevertToSelf();
                    // ReSharper disable PossibleNullReferenceException
                    _processUser = WindowsIdentity.GetCurrent().Name;
                    // ReSharper restore PossibleNullReferenceException
                }
            }
    
            private void OnRequestComplete(Guid id)
            {
    
                EventHandler<RequestEventArgs> complete = RequestComplete;
    
    
                if (complete != null)
                {
                    complete(this, new RequestEventArgs(id));
                }
            }
    
    
            ///<summary>
            ///</summary>
            public void ShutDown()
            {
                if (_shutdownInProgress)
                {
                    return;
                }
    
                _shutdownInProgress = true;
    
                try
                {
                    if (_socket != null)
                    {
                        _socket.Close();
                    }
                }
                // ReSharper disable EmptyGeneralCatchClause
                catch
                // ReSharper restore EmptyGeneralCatchClause
                {
                    // TODO: why the swallow?
                }
                finally
                {
                    _socket = null;
                }
    
                try
                {
                    if (_host != null)
                    {
                        _host.Shutdown();
                    }
    
                    // the host is going to raise an event that this class uses to null the field.
                    // just wait until the field is nulled and continue.
    
                    while (_host != null)
                    {
                        new AutoResetEvent(false).WaitOne(100);
                    }
                }
                // ReSharper disable EmptyGeneralCatchClause
                catch
                // ReSharper restore EmptyGeneralCatchClause
                {
                    // TODO: what am i afraid of here?
                }
      
            }
    
            //private void TimeOut(object ignored)
            //{
            //    TimeOut();
            //}
    
            /////<summary>
            /////</summary>
            //public void TimeOut()
            //{
            //    ShutDown();
            //    OnTimeOut();
            //}
    
            //private void OnTimeOut()
            //{
            //    EventHandler handler = TimedOut;
            //    if (handler != null) handler(this, EventArgs.Empty);
            //}
        }
    }
    Server类
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  Copyright (c) Microsoft Corporation. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.IO;
    using System.Linq;
    using System.Reflection;
    using System.Runtime.InteropServices;
    using System.Text;
    using System.Web.UI;
    
    #endregion
    
    namespace SimpleWebServer
    {
        internal static class CommonExtensions
        {
            public static string ConvertToHexView(this byte[] value, int numBytesPerRow)
            {
                if (value == null) return null;
    
                List<string> hexSplit = BitConverter.ToString(value)
                    .Replace('-', ' ')
                    .Trim()
                    .SplitIntoChunks(numBytesPerRow*3)
                    .ToList();
    
                int byteAddress = 0;
                StringBuilder sb = new StringBuilder();
    
                for (int i = 0; i < hexSplit.Count; i++)
                {
                    sb.AppendLine(byteAddress.ToString("X4") + ":\t" + hexSplit[i]);
                    byteAddress += numBytesPerRow;
                }
    
                return sb.ToString();
            }
    
            /// <summary>
            /// CassiniDev FIX: #12506
            /// </summary>
            /// <param name="fileName"></param>
            /// <returns></returns>
            public static string GetContentType(string fileName)
            {
                if (!File.Exists(fileName))
                {
                    return null;
                }
    
                string contentType;
    
                FileInfo info = new FileInfo(fileName);
                string extension = info.Extension.ToLowerInvariant();
    
                #region switch filetype
                switch (extension)
                {
                        //NOTE: these are fallbacks - and should be refined as needed
                        // Only if the request does not already know
                        // the content-type will this switch be hit - meaning that 
                        // served content-types for extensions listed here may not match
                        // as this method may not be polled.
    
                    case ".svgz":
                        contentType = "image/svg+xml";
                        break;
    
                        // from registry - last resort - verified mappings follow
    
                    case ".3g2":
                        contentType = "video/3gpp2";
                        break;
                    case ".3gp":
                        contentType = "video/3gpp";
                        break;
                    case ".3gp2":
                        contentType = "video/3gpp2";
                        break;
                    case ".3gpp":
                        contentType = "video/3gpp";
                        break;
                    case ".adt":
                        contentType = "audio/vnd.dlna.adts";
                        break;
                    case ".amr":
                        contentType = "audio/AMR";
                        break;
                    case ".addin":
                        contentType = "text/xml";
                        break;
                    case ".evr":
                        contentType = "audio/evrc-qcp";
                        break;
                    case ".evrc":
                        contentType = "audio/evrc-qcp";
                        break;
                    case ".ssisdeploymentmanifest":
                        contentType = "text/xml";
                        break;
                    case ".xoml":
                        contentType = "text/plain";
                        break;
                    case ".aac":
                        contentType = "audio/aac";
                        break;
                    case ".ac3":
                        contentType = "audio/ac3";
                        break;
                    case ".accda":
                        contentType = "application/msaccess";
                        break;
                    case ".accdb":
                        contentType = "application/msaccess";
                        break;
                    case ".accdc":
                        contentType = "application/msaccess";
                        break;
                    case ".accde":
                        contentType = "application/msaccess";
                        break;
                    case ".accdr":
                        contentType = "application/msaccess";
                        break;
                    case ".accdt":
                        contentType = "application/msaccess";
                        break;
                    case ".acrobatsecuritysettings":
                        contentType = "application/vnd.adobe.acrobat-security-settings";
                        break;
                    case ".ad":
                        contentType = "text/plain";
                        break;
                    case ".ade":
                        contentType = "application/msaccess";
                        break;
                    case ".adobebridge":
                        contentType = "application/x-bridge-url";
                        break;
                    case ".adp":
                        contentType = "application/msaccess";
                        break;
                    case ".adts":
                        contentType = "audio/vnd.dlna.adts";
                        break;
                    case ".amc":
                        contentType = "application/x-mpeg";
                        break;
                    case ".application":
                        contentType = "application/x-ms-application";
                        break;
                    case ".asa":
                        contentType = "application/xml";
                        break;
                    case ".asax":
                        contentType = "application/xml";
                        break;
                    case ".ascx":
                        contentType = "application/xml";
                        break;
    
                    case ".ashx":
                        contentType = "application/xml";
                        break;
                    case ".asm":
                        contentType = "text/plain";
                        break;
                    case ".asmx":
                        contentType = "application/xml";
                        break;
                    case ".aspx":
                        contentType = "application/xml";
                        break;
                    case ".awf":
                        contentType = "application/vnd.adobe.workflow";
                        break;
                    case ".biz":
                        contentType = "text/xml";
                        break;
    
                    case ".c2r":
                        contentType = "text/vnd-ms.click2record+xml";
                        break;
                    case ".caf":
                        contentType = "audio/x-caf";
                        break;
    
                    case ".cc":
                        contentType = "text/plain";
                        break;
                    case ".cd":
                        contentType = "text/plain";
                        break;
                    case ".cdda":
                        contentType = "audio/aiff";
                        break;
    
                    case ".config":
                        contentType = "application/xml";
                        break;
                    case ".contact":
                        contentType = "text/x-ms-contact";
                        break;
                    case ".coverage":
                        contentType = "application/xml";
                        break;
                    case ".cpp":
                        contentType = "text/plain";
                        break;
                    case ".cs":
                        contentType = "text/plain";
                        break;
                    case ".csdproj":
                        contentType = "text/plain";
                        break;
                    case ".csproj":
                        contentType = "text/plain";
                        break;
                    case ".jar":
                        contentType = "application/java-archive";
                        break;
                    case ".csv":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".cur":
                        contentType = "text/plain";
                        break;
                    case ".cxx":
                        contentType = "text/plain";
                        break;
                    case ".datasource":
                        contentType = "application/xml";
                        break;
                    case ".dbproj":
                        contentType = "text/plain";
                        break;
                    case ".dcd":
                        contentType = "text/xml";
                        break;
                    case ".dd":
                        contentType = "text/plain";
                        break;
                    case ".def":
                        contentType = "text/plain";
                        break;
    
                    case ".design":
                        contentType = "image/design";
                        break;
                    case ".dgml":
                        contentType = "application/xml";
                        break;
                    case ".dib":
                        contentType = "image/bmp";
                        break;
                    case ".dif":
                        contentType = "video/x-dv";
                        break;
                    case ".docm":
                        contentType = "application/vnd.ms-word.document.macroEnabled.12";
                        break;
                    case ".docx":
                        contentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
                        break;
                    case ".dotm":
                        contentType = "application/vnd.ms-word.template.macroEnabled.12";
                        break;
                    case ".dotx":
                        contentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.template";
                        break;
                    case ".dsp":
                        contentType = "text/plain";
                        break;
                    case ".dsprototype":
                        contentType = "text/plain";
                        break;
                    case ".dsw":
                        contentType = "text/plain";
                        break;
                    case ".dtd":
                        contentType = "application/xml-dtd";
                        break;
                    case ".dtsconfig":
                        contentType = "text/xml";
                        break;
                    case ".dv":
                        contentType = "video/x-dv";
                        break;
                    case ".dwfx":
                        contentType = "model/vnd.dwfx+xps";
                        break;
                    case ".easmx":
                        contentType = "model/vnd.easmx+xps";
                        break;
                    case ".edrwx":
                        contentType = "model/vnd.edrwx+xps";
                        break;
                    case ".eprtx":
                        contentType = "model/vnd.eprtx+xps";
                        break;
                    case ".fdf":
                        contentType = "application/vnd.fdf";
                        break;
                    case ".filters":
                        contentType = "Application/xml";
                        break;
                    case ".flc":
                        contentType = "video/flc";
                        break;
                    case ".fo":
                        contentType = "text/xml";
                        break;
                    case ".fsscript":
                        contentType = "application/fsharp-script";
                        break;
                    case ".fsx":
                        contentType = "application/fsharp-script";
                        break;
                    case ".generictest":
                        contentType = "application/xml";
                        break;
                    case ".group":
                        contentType = "text/x-ms-group";
                        break;
                    case ".gsm":
                        contentType = "audio/x-gsm";
                        break;
                    case ".hpp":
                        contentType = "text/plain";
                        break;
                    case ".hxa":
                        contentType = "application/xml";
                        break;
                    case ".hxc":
                        contentType = "application/xml";
                        break;
                    case ".hxd":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxe":
                        contentType = "application/xml";
                        break;
                    case ".hxf":
                        contentType = "application/xml";
                        break;
                    case ".hxh":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxi":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxk":
                        contentType = "application/xml";
                        break;
                    case ".hxq":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxr":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxs":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxt":
                        contentType = "application/xml";
                        break;
                    case ".hxv":
                        contentType = "application/xml";
                        break;
                    case ".hxw":
                        contentType = "application/octet-stream";
                        break;
                    case ".hxx":
                        contentType = "text/plain";
                        break;
                    case ".i":
                        contentType = "text/plain";
                        break;
                    case ".idl":
                        contentType = "text/plain";
                        break;
                    case ".inc":
                        contentType = "text/plain";
                        break;
                    case ".inl":
                        contentType = "text/plain";
                        break;
                    case ".ipproj":
                        contentType = "text/plain";
                        break;
                    case ".iqy":
                        contentType = "text/x-ms-iqy";
                        break;
                    case ".ismv":
                        contentType = "video/ismv";
                        break;
                    case ".jsx":
                        contentType = "text/plain";
                        break;
                    case ".jsxbin":
                        contentType = "text/plain";
                        break;
                    case ".jtx":
                        contentType = "application/x-jtx+xps";
                        break;
                    case ".ldd":
                        contentType = "text/plain";
                        break;
                    case ".library-ms":
                        contentType = "application/windows-library+xml";
                        break;
                    case ".loadtest":
                        contentType = "application/xml";
                        break;
                    case ".lsaprototype":
                        contentType = "text/plain";
                        break;
                    case ".lst":
                        contentType = "text/plain";
                        break;
                    case ".m1v":
                        contentType = "video/mpeg";
                        break;
                    case ".m2t":
                        contentType = "video/vnd.dlna.mpeg-tts";
                        break;
                    case ".m2ts":
                        contentType = "video/vnd.dlna.mpeg-tts";
                        break;
                    case ".m2v":
                        contentType = "video/mpeg";
                        break;
                    case ".m4a":
                        contentType = "audio/mp4";
                        break;
                    case ".m4b":
                        contentType = "audio/x-m4b";
                        break;
                    case ".m4p":
                        contentType = "audio/x-m4p";
                        break;
                    case ".m4v":
                        contentType = "video/x-m4v";
                        break;
                    case ".mac":
                        contentType = "image/x-macpaint";
                        break;
                    case ".mak":
                        contentType = "text/plain";
                        break;
                    case ".map":
                        contentType = "text/plain";
                        break;
                    case ".master":
                        contentType = "application/xml";
                        break;
                    case ".mda":
                        contentType = "application/msaccess";
                        break;
                    case ".mde":
                        contentType = "application/msaccess";
                        break;
                    case ".mdp":
                        contentType = "text/plain";
                        break;
                    case ".mfp":
                        contentType = "application/x-shockwave-flash";
                        break;
                    case ".mk":
                        contentType = "text/plain";
                        break;
                    case ".mod":
                        contentType = "video/mpeg";
                        break;
                    case ".mp2v":
                        contentType = "video/mpeg";
                        break;
                    case ".mp4":
                        contentType = "video/mp4";
                        break;
                    case ".mp4v":
                        contentType = "video/mp4";
                        break;
                    case ".mpf":
                        contentType = "application/vnd.ms-mediapackage";
                        break;
                    case ".mqv":
                        contentType = "video/quicktime";
                        break;
                    case ".mts":
                        contentType = "video/vnd.dlna.mpeg-tts";
                        break;
                    case ".mtx":
                        contentType = "application/xml";
                        break;
                    case ".mxp":
                        contentType = "application/x-mmxp";
                        break;
                    case ".nix":
                        contentType = "application/x-mix-transfer";
                        break;
                    case ".odc":
                        contentType = "text/x-ms-odc";
                        break;
                    case ".odh":
                        contentType = "text/plain";
                        break;
                    case ".odl":
                        contentType = "text/plain";
                        break;
                    case ".odp":
                        contentType = "application/vnd.oasis.opendocument.presentation";
                        break;
                    case ".ods":
                        contentType = "application/vnd.oasis.opendocument.spreadsheet";
                        break;
                    case ".odt":
                        contentType = "application/vnd.oasis.opendocument.text";
                        break;
                    case ".orderedtest":
                        contentType = "application/xml";
                        break;
                    case ".osdx":
                        contentType = "application/opensearchdescription+xml";
                        break;
                    case ".pct":
                        contentType = "image/pict";
                        break;
                    case ".pcx":
                        contentType = "image/x-pcx";
                        break;
    
                    case ".pdfxml":
                        contentType = "application/vnd.adobe.pdfxml";
                        break;
                    case ".pdx":
                        contentType = "application/vnd.adobe.pdx";
                        break;
                    case ".pic":
                        contentType = "image/pict";
                        break;
                    case ".pict":
                        contentType = "image/pict";
                        break;
                    case ".pkgdef":
                        contentType = "text/plain";
                        break;
                    case ".pkgundef":
                        contentType = "text/plain";
                        break;
                    case ".png":
                        contentType = "image/png";
                        break;
                    case ".pnt":
                        contentType = "image/x-macpaint";
                        break;
                    case ".pntg":
                        contentType = "image/x-macpaint";
                        break;
                    case ".potm":
                        contentType = "application/vnd.ms-powerpoint.template.macroEnabled.12";
                        break;
                    case ".potx":
                        contentType = "application/vnd.openxmlformats-officedocument.presentationml.template";
                        break;
                    case ".ppa":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".ppam":
                        contentType = "application/vnd.ms-powerpoint.addin.macroEnabled.12";
                        break;
                    case ".ppsm":
                        contentType = "application/vnd.ms-powerpoint.slideshow.macroEnabled.12";
                        break;
                    case ".ppsx":
                        contentType = "application/vnd.openxmlformats-officedocument.presentationml.slideshow";
                        break;
                    case ".pptm":
                        contentType = "application/vnd.ms-powerpoint.presentation.macroEnabled.12";
                        break;
                    case ".pptx":
                        contentType = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
                        break;
                    case ".psc1":
                        contentType = "application/PowerShell";
                        break;
                    case ".psess":
                        contentType = "application/xml";
                        break;
                    case ".pwz":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".pxr":
                        contentType = "image/pxr";
                        break;
                    case ".qcp":
                        contentType = "audio/vnd.qcelp";
                        break;
                    case ".qht":
                        contentType = "text/x-html-insertion";
                        break;
                    case ".qhtm":
                        contentType = "text/x-html-insertion";
                        break;
                    case ".qti":
                        contentType = "image/x-quicktime";
                        break;
                    case ".qtif":
                        contentType = "image/x-quicktime";
                        break;
                    case ".qtl":
                        contentType = "application/x-quicktimeplayer";
                        break;
                    case ".rat":
                        contentType = "application/rat-file";
                        break;
                    case ".raw":
                        contentType = "application/octet-stream";
                        break;
    
                    case ".rc":
                        contentType = "text/plain";
                        break;
                    case ".rc2":
                        contentType = "text/plain";
                        break;
                    case ".rct":
                        contentType = "text/plain";
                        break;
                    case ".rdf":
                        contentType = "text/xml";
                        break;
                    case ".rdlc":
                        contentType = "application/xml";
                        break;
                    case ".rels":
                        contentType = "application/vnd.ms-package.relationships+xml";
                        break;
                    case ".resx":
                        contentType = "application/xml";
                        break;
                    case ".rgs":
                        contentType = "text/plain";
                        break;
                    case ".rjt":
                        contentType = "application/vnd.rn-realsystem-rjt";
                        break;
                    case ".rm":
                        contentType = "application/vnd.rn-realmedia";
                        break;
                    case ".rmf":
                        contentType = "application/vnd.adobe.rmf";
                        break;
                    case ".rmj":
                        contentType = "application/vnd.rn-realsystem-rmj";
                        break;
                    case ".rmm":
                        contentType = "audio/x-pn-realaudio";
                        break;
                    case ".rmp":
                        contentType = "application/vnd.rn-rn_music_package";
                        break;
                    case ".rms":
                        contentType = "application/vnd.rn-realaudio-secure";
                        break;
                    case ".rmvb":
                        contentType = "application/vnd.rn-realmedia-vbr";
                        break;
                    case ".rmx":
                        contentType = "application/vnd.rn-realsystem-rmx";
                        break;
                    case ".rnx":
                        contentType = "application/vnd.rn-realplayer";
                        break;
                    case ".rp":
                        contentType = "image/vnd.rn-realpix";
                        break;
                    case ".rpm":
                        contentType = "audio/x-pn-realaudio-plugin";
                        break;
                    case ".rqy":
                        contentType = "text/x-ms-rqy";
                        break;
                    case ".rsml":
                        contentType = "application/vnd.rn-rsml";
                        break;
                    case ".rt":
                        contentType = "text/vnd.rn-realtext";
                        break;
                    case ".rtsp":
                        contentType = "application/x-rtsp";
                        break;
                    case ".ruleset":
                        contentType = "application/xml";
                        break;
                    case ".rv":
                        contentType = "video/vnd.rn-realvideo";
                        break;
                    case ".s":
                        contentType = "text/plain";
                        break;
                    case ".sd":
                        contentType = "text/plain";
                        break;
                    case ".sd2":
                        contentType = "audio/x-sd2";
                        break;
                    case ".sdm":
                        contentType = "text/plain";
                        break;
                    case ".sdmdocument":
                        contentType = "text/plain";
                        break;
                    case ".sdp":
                        contentType = "application/sdp";
                        break;
                    case ".sdv":
                        contentType = "video/sd-video";
                        break;
                    case ".searchConnector-ms":
                        contentType = "application/windows-search-connector+xml";
                        break;
                    case ".settings":
                        contentType = "application/xml";
                        break;
                    case ".sgi":
                        contentType = "image/x-sgi";
                        break;
                    case ".shtml":
                        contentType = "text/html";
                        break;
                    case ".sitemap":
                        contentType = "application/xml";
                        break;
                    case ".skin":
                        contentType = "application/xml";
                        break;
                    case ".sldm":
                        contentType = "application/vnd.ms-powerpoint.slide.macroEnabled.12";
                        break;
                    case ".sldx":
                        contentType = "application/vnd.openxmlformats-officedocument.presentationml.slide";
                        break;
                    case ".slk":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".sln":
                        contentType = "text/plain";
                        break;
                    case ".slupkg-ms":
                        contentType = "application/x-ms-license";
                        break;
                    case ".smi":
                        contentType = "application/smil";
                        break;
                    case ".smil":
                        contentType = "application/smil";
                        break;
                    case ".snippet":
                        contentType = "application/xml";
                        break;
                    case ".sol":
                        contentType = "text/plain";
                        break;
                    case ".sor":
                        contentType = "text/plain";
                        break;
                    case ".srf":
                        contentType = "text/plain";
                        break;
                    case ".svc":
                        contentType = "application/xml";
                        break;
                    case ".tga":
                        contentType = "image/x-targa";
                        break;
                    case ".targa":
                        contentType = "image/x-targa";
                        break;
                    case ".testrunconfig":
                        contentType = "application/xml";
                        break;
                    case ".testsettings":
                        contentType = "application/xml";
                        break;
                    case ".thmx":
                        contentType = "application/vnd.ms-officetheme";
                        break;
                    case ".tlh":
                        contentType = "text/plain";
                        break;
                    case ".tli":
                        contentType = "text/plain";
                        break;
                    case ".trx":
                        contentType = "application/xml";
                        break;
                    case ".ts":
                        contentType = "video/vnd.dlna.mpeg-tts";
                        break;
                    case ".tts":
                        contentType = "video/vnd.dlna.mpeg-tts";
                        break;
                    case ".user":
                        contentType = "text/plain";
                        break;
                    case ".vb":
                        contentType = "text/plain";
                        break;
                    case ".vbdproj":
                        contentType = "text/plain";
                        break;
                    case ".vbproj":
                        contentType = "text/plain";
                        break;
                    case ".vcproj":
                        contentType = "Application/xml";
                        break;
                    case ".vcxproj":
                        contentType = "Application/xml";
                        break;
                    case ".vddproj":
                        contentType = "text/plain";
                        break;
                    case ".vdp":
                        contentType = "text/plain";
                        break;
                    case ".vdproj":
                        contentType = "text/plain";
                        break;
                    case ".vdx":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vscontent":
                        contentType = "application/xml";
                        break;
                    case ".vsct":
                        contentType = "text/xml";
                        break;
                    case ".vsd":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vsi":
                        contentType = "application/ms-vsi";
                        break;
                    case ".vsix":
                        contentType = "application/vsix";
                        break;
                    case ".vsixlangpack":
                        contentType = "text/xml";
                        break;
                    case ".vsixmanifest":
                        contentType = "text/xml";
                        break;
                    case ".vsl":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vsmdi":
                        contentType = "application/xml";
                        break;
                    case ".vspscc":
                        contentType = "text/plain";
                        break;
                    case ".vss":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vsscc":
                        contentType = "text/plain";
                        break;
                    case ".vssettings":
                        contentType = "text/xml";
                        break;
                    case ".vssscc":
                        contentType = "text/plain";
                        break;
                    case ".vst":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vstemplate":
                        contentType = "text/xml";
                        break;
                    case ".vsto":
                        contentType = "application/x-ms-vsto";
                        break;
                    case ".vsu":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vsw":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vsx":
                        contentType = "application/vnd.visio";
                        break;
                    case ".vtx":
                        contentType = "application/vnd.visio";
                        break;
                    case ".wax":
                        contentType = "audio/x-ms-wax";
                        break;
                    case ".wbk":
                        contentType = "application/msword";
                        break;
                    case ".wdp":
                        contentType = "image/vnd.ms-photo";
                        break;
                    case ".webtest":
                        contentType = "application/xml";
                        break;
                    case ".wiq":
                        contentType = "application/xml";
                        break;
                    case ".wiz":
                        contentType = "application/msword";
                        break;
                    case ".wm":
                        contentType = "video/x-ms-wm";
                        break;
                    case ".wma":
                        contentType = "audio/x-ms-wma";
                        break;
                    case ".wmd":
                        contentType = "application/x-ms-wmd";
                        break;
                    case ".wmv":
                        contentType = "video/x-ms-wmv";
                        break;
                    case ".wmx":
                        contentType = "video/x-ms-wmx";
                        break;
                    case ".wmz":
                        contentType = "application/x-ms-wmz";
                        break;
                    case ".wpl":
                        contentType = "application/vnd.ms-wpl";
                        break;
                    case ".wsc":
                        contentType = "text/scriptlet";
                        break;
                    case ".wsdl":
                        contentType = "application/xml";
                        break;
                    case ".wvx":
                        contentType = "video/x-ms-wvx";
                        break;
                    case ".xaml":
                        contentType = "application/xaml+xml";
                        break;
                    case ".xbap":
                        contentType = "application/x-ms-xbap";
                        break;
                    case ".xbrl":
                        contentType = "text/xml";
                        break;
                    case ".xdp":
                        contentType = "application/vnd.adobe.xdp+xml";
                        break;
                    case ".xdr":
                        contentType = "application/xml";
                        break;
                    case ".xej":
                        contentType = "application/xej+xml";
                        break;
                    case ".xel":
                        contentType = "application/xel+xml";
                        break;
                    case ".xesc":
                        contentType = "application/x-ms-wmv";
                        break;
                    case ".xfd":
                        contentType = "application/vnd.adobe.xfd+xml";
                        break;
                    case ".xfdf":
                        contentType = "application/vnd.adobe.xfdf";
                        break;
                    case ".xht":
                        contentType = "application/xhtml+xml";
                        break;
                    case ".xhtml":
                        contentType = "application/xhtml+xml";
                        break;
                    case ".xlam":
                        contentType = "application/vnd.ms-excel.addin.macroEnabled.12";
                        break;
                    case ".xlk":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xll":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xlsb":
                        contentType = "application/vnd.ms-excel.sheet.binary.macroEnabled.12";
                        break;
                    case ".xlsm":
                        contentType = "application/vnd.ms-excel.sheet.macroEnabled.12";
                        break;
                    case ".xlsx":
                        contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                        break;
                    case ".xltm":
                        contentType = "application/vnd.ms-excel.template.macroEnabled.12";
                        break;
                    case ".xltx":
                        contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.template";
                        break;
                    case ".xml":
                        contentType = "application/xml";
                        break;
                    case ".xmta":
                        contentType = "application/xml";
                        break;
                    case ".xpr":
                        contentType = "image/xpr";
                        break;
                    case ".xps":
                        contentType = "application/vnd.ms-xpsdocument";
                        break;
                    case ".xrm-ms":
                        contentType = "text/xml";
                        break;
                    case ".xsc":
                        contentType = "application/xml";
                        break;
                    case ".xsd":
                        contentType = "application/xml";
                        break;
                    case ".xsl":
                        contentType = "text/xml";
                        break;
                    case ".xslt":
                        contentType = "application/xml";
                        break;
                    case ".xss":
                        contentType = "application/xml";
                        break;
                    case ".323":
                        contentType = "text/h323";
                        break;
                    case ".acx":
                        contentType = "application/internet-property-stream";
                        break;
                    case ".ai":
                        contentType = "application/postscript";
                        break;
                    case ".aif":
                        contentType = "audio/x-aiff";
                        break;
                    case ".aifc":
                        contentType = "audio/x-aiff";
                        break;
                    case ".aiff":
                        contentType = "audio/x-aiff";
                        break;
                    case ".asf":
                        contentType = "video/x-ms-asf";
                        break;
                    case ".asr":
                        contentType = "video/x-ms-asf";
                        break;
                    case ".asx":
                        contentType = "video/x-ms-asf";
                        break;
                    case ".au":
                        contentType = "audio/basic";
                        break;
                    case ".avi":
                        contentType = "video/x-msvideo";
                        break;
                    case ".axs":
                        contentType = "application/olescript";
                        break;
                    case ".bas":
                        contentType = "text/plain";
                        break;
                    case ".bcpio":
                        contentType = "application/x-bcpio";
                        break;
                    case ".bin":
                        contentType = "application/octet-stream";
                        break;
                    case ".bmp":
                        contentType = "image/bmp";
                        break;
                    case ".c":
                        contentType = "text/plain";
                        break;
                    case ".cat":
                        contentType = "application/vnd.ms-pkiseccat";
                        break;
                    case ".cdf":
                        contentType = "application/x-cdf";
                        break;
                    case ".cer":
                        contentType = "application/x-x509-ca-cert";
                        break;
                    case ".class":
                        contentType = "application/octet-stream";
                        break;
                    case ".clp":
                        contentType = "application/x-msclip";
                        break;
                    case ".cmx":
                        contentType = "image/x-cmx";
                        break;
                    case ".cod":
                        contentType = "image/cis-cod";
                        break;
                    case ".cpio":
                        contentType = "application/x-cpio";
                        break;
                    case ".crd":
                        contentType = "application/x-mscardfile";
                        break;
                    case ".crl":
                        contentType = "application/pkix-crl";
                        break;
                    case ".crt":
                        contentType = "application/x-x509-ca-cert";
                        break;
                    case ".csh":
                        contentType = "application/x-csh";
                        break;
                    case ".css":
                        contentType = "text/css";
                        break;
                    case ".dcr":
                        contentType = "application/x-director";
                        break;
                    case ".der":
                        contentType = "application/x-x509-ca-cert";
                        break;
                    case ".dir":
                        contentType = "application/x-director";
                        break;
                    case ".dll":
                        contentType = "application/x-msdownload";
                        break;
                    case ".dms":
                        contentType = "application/octet-stream";
                        break;
                    case ".doc":
                        contentType = "application/msword";
                        break;
                    case ".dot":
                        contentType = "application/msword";
                        break;
                    case ".dvi":
                        contentType = "application/x-dvi";
                        break;
                    case ".dxr":
                        contentType = "application/x-director";
                        break;
                    case ".eps":
                        contentType = "application/postscript";
                        break;
                    case ".etx":
                        contentType = "text/x-setext";
                        break;
                    case ".evy":
                        contentType = "application/envoy";
                        break;
                    case ".exe":
                        contentType = "application/octet-stream";
                        break;
                    case ".fif":
                        contentType = "application/fractals";
                        break;
                    case ".flr":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".gif":
                        contentType = "image/gif";
                        break;
                    case ".gtar":
                        contentType = "application/x-gtar";
                        break;
                    case ".gz":
                        contentType = "application/x-gzip";
                        break;
                    case ".h":
                        contentType = "text/plain";
                        break;
                    case ".hdf":
                        contentType = "application/x-hdf";
                        break;
                    case ".hlp":
                        contentType = "application/winhlp";
                        break;
                    case ".hqx":
                        contentType = "application/mac-binhex40";
                        break;
                    case ".hta":
                        contentType = "application/hta";
                        break;
                    case ".htc":
                        contentType = "text/x-component";
                        break;
                    case ".htm":
                        contentType = "text/html";
                        break;
                    case ".html":
                        contentType = "text/html";
                        break;
                    case ".htt":
                        contentType = "text/webviewhtml";
                        break;
                    case ".ico":
                        contentType = "image/x-icon";
                        break;
                    case ".ief":
                        contentType = "image/ief";
                        break;
                    case ".iii":
                        contentType = "application/x-iphone";
                        break;
                    case ".ins":
                        contentType = "application/x-internet-signup";
                        break;
                    case ".isp":
                        contentType = "application/x-internet-signup";
                        break;
                    case ".jfif":
                        contentType = "image/pipeg";
                        break;
                    case ".jpe":
                        contentType = "image/jpeg";
                        break;
                    case ".jpeg":
                        contentType = "image/jpeg";
                        break;
                    case ".jpg":
                        contentType = "image/jpeg";
                        break;
                    case ".js":
                        contentType = "application/x-javascript";
                        break;
                    case ".latex":
                        contentType = "application/x-latex";
                        break;
                    case ".lha":
                        contentType = "application/octet-stream";
                        break;
                    case ".lsf":
                        contentType = "video/x-la-asf";
                        break;
                    case ".lsx":
                        contentType = "video/x-la-asf";
                        break;
                    case ".lzh":
                        contentType = "application/octet-stream";
                        break;
                    case ".m13":
                        contentType = "application/x-msmediaview";
                        break;
                    case ".m14":
                        contentType = "application/x-msmediaview";
                        break;
                    case ".m3u":
                        contentType = "audio/x-mpegurl";
                        break;
                    case ".man":
                        contentType = "application/x-troff-man";
                        break;
                    case ".mdb":
                        contentType = "application/x-msaccess";
                        break;
                    case ".me":
                        contentType = "application/x-troff-me";
                        break;
                    case ".mht":
                        contentType = "message/rfc822";
                        break;
                    case ".mhtml":
                        contentType = "message/rfc822";
                        break;
                    case ".mid":
                        contentType = "audio/mid";
                        break;
                    case ".mny":
                        contentType = "application/x-msmoney";
                        break;
                    case ".mov":
                        contentType = "video/quicktime";
                        break;
                    case ".movie":
                        contentType = "video/x-sgi-movie";
                        break;
                    case ".mp2":
                        contentType = "video/mpeg";
                        break;
                    case ".mp3":
                        contentType = "audio/mpeg";
                        break;
                    case ".mpa":
                        contentType = "video/mpeg";
                        break;
                    case ".mpe":
                        contentType = "video/mpeg";
                        break;
                    case ".mpeg":
                        contentType = "video/mpeg";
                        break;
                    case ".mpg":
                        contentType = "video/mpeg";
                        break;
                    case ".mpp":
                        contentType = "application/vnd.ms-project";
                        break;
                    case ".mpv2":
                        contentType = "video/mpeg";
                        break;
                    case ".ms":
                        contentType = "application/x-troff-ms";
                        break;
                    case ".msg":
                        contentType = "application/vnd.ms-outlook";
                        break;
                    case ".mvb":
                        contentType = "application/x-msmediaview";
                        break;
                    case ".nc":
                        contentType = "application/x-netcdf";
                        break;
                    case ".nws":
                        contentType = "message/rfc822";
                        break;
                    case ".oda":
                        contentType = "application/oda";
                        break;
                    case ".p10":
                        contentType = "application/pkcs10";
                        break;
                    case ".p12":
                        contentType = "application/x-pkcs12";
                        break;
                    case ".p7b":
                        contentType = "application/x-pkcs7-certificates";
                        break;
                    case ".p7c":
                        contentType = "application/x-pkcs7-mime";
                        break;
                    case ".p7m":
                        contentType = "application/x-pkcs7-mime";
                        break;
                    case ".p7r":
                        contentType = "application/x-pkcs7-certreqresp";
                        break;
                    case ".p7s":
                        contentType = "application/x-pkcs7-signature";
                        break;
                    case ".pbm":
                        contentType = "image/x-portable-bitmap";
                        break;
                    case ".pdf":
                        contentType = "application/pdf";
                        break;
                    case ".pfx":
                        contentType = "application/x-pkcs12";
                        break;
                    case ".pgm":
                        contentType = "image/x-portable-graymap";
                        break;
                    case ".pko":
                        contentType = "application/ynd.ms-pkipko";
                        break;
                    case ".pma":
                        contentType = "application/x-perfmon";
                        break;
                    case ".pmc":
                        contentType = "application/x-perfmon";
                        break;
                    case ".pml":
                        contentType = "application/x-perfmon";
                        break;
                    case ".pmr":
                        contentType = "application/x-perfmon";
                        break;
                    case ".pmw":
                        contentType = "application/x-perfmon";
                        break;
                    case ".pnm":
                        contentType = "image/x-portable-anymap";
                        break;
                    case ".pot":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".pot,":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".ppm":
                        contentType = "image/x-portable-pixmap";
                        break;
                    case ".pps":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".ppt":
                        contentType = "application/vnd.ms-powerpoint";
                        break;
                    case ".prf":
                        contentType = "application/pics-rules";
                        break;
                    case ".ps":
                        contentType = "application/postscript";
                        break;
                    case ".pub":
                        contentType = "application/x-mspublisher";
                        break;
                    case ".qt":
                        contentType = "video/quicktime";
                        break;
                    case ".ra":
                        contentType = "audio/x-pn-realaudio";
                        break;
                    case ".ram":
                        contentType = "audio/x-pn-realaudio";
                        break;
                    case ".ras":
                        contentType = "image/x-cmu-raster";
                        break;
                    case ".rgb":
                        contentType = "image/x-rgb";
                        break;
                    case ".rmi":
                        contentType = "audio/mid";
                        break;
                    case ".roff":
                        contentType = "application/x-troff";
                        break;
                    case ".rtf":
                        contentType = "application/rtf";
                        break;
                    case ".rtx":
                        contentType = "text/richtext";
                        break;
                    case ".scd":
                        contentType = "application/x-msschedule";
                        break;
                    case ".sct":
                        contentType = "text/scriptlet";
                        break;
                    case ".setpay":
                        contentType = "application/set-payment-initiation";
                        break;
                    case ".setreg":
                        contentType = "application/set-registration-initiation";
                        break;
                    case ".sh":
                        contentType = "application/x-sh";
                        break;
                    case ".shar":
                        contentType = "application/x-shar";
                        break;
                    case ".sit":
                        contentType = "application/x-stuffit";
                        break;
                    case ".snd":
                        contentType = "audio/basic";
                        break;
                    case ".spc":
                        contentType = "application/x-pkcs7-certificates";
                        break;
                    case ".spl":
                        contentType = "application/futuresplash";
                        break;
                    case ".src":
                        contentType = "application/x-wais-source";
                        break;
                    case ".sst":
                        contentType = "application/vnd.ms-pkicertstore";
                        break;
                    case ".stl":
                        contentType = "application/vnd.ms-pkistl";
                        break;
                    case ".stm":
                        contentType = "text/html";
                        break;
                    case ".sv4cpio":
                        contentType = "application/x-sv4cpio";
                        break;
                    case ".sv4crc":
                        contentType = "application/x-sv4crc";
                        break;
                    case ".svg":
                        contentType = "image/svg+xml";
                        break;
                    case ".swf":
                        contentType = "application/x-shockwave-flash";
                        break;
                    case ".t":
                        contentType = "application/x-troff";
                        break;
                    case ".tar":
                        contentType = "application/x-tar";
                        break;
                    case ".tcl":
                        contentType = "application/x-tcl";
                        break;
                    case ".tex":
                        contentType = "application/x-tex";
                        break;
                    case ".texi":
                        contentType = "application/x-texinfo";
                        break;
                    case ".texinfo":
                        contentType = "application/x-texinfo";
                        break;
                    case ".tgz":
                        contentType = "application/x-compressed";
                        break;
                    case ".tif":
                        contentType = "image/tiff";
                        break;
                    case ".tiff":
                        contentType = "image/tiff";
                        break;
                    case ".tr":
                        contentType = "application/x-troff";
                        break;
                    case ".trm":
                        contentType = "application/x-msterminal";
                        break;
                    case ".tsv":
                        contentType = "text/tab-separated-values";
                        break;
                    case ".txt":
                        contentType = "text/plain";
                        break;
                    case ".uls":
                        contentType = "text/iuls";
                        break;
                    case ".ustar":
                        contentType = "application/x-ustar";
                        break;
                    case ".vcf":
                        contentType = "text/x-vcard";
                        break;
                    case ".vrml":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".wav":
                        contentType = "audio/x-wav";
                        break;
                    case ".wcm":
                        contentType = "application/vnd.ms-works";
                        break;
                    case ".wdb":
                        contentType = "application/vnd.ms-works";
                        break;
                    case ".wks":
                        contentType = "application/vnd.ms-works";
                        break;
                    case ".wmf":
                        contentType = "application/x-msmetafile";
                        break;
                    case ".wps":
                        contentType = "application/vnd.ms-works";
                        break;
                    case ".wri":
                        contentType = "application/x-mswrite";
                        break;
                    case ".wrl":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".wrz":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".xaf":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".xbm":
                        contentType = "image/x-xbitmap";
                        break;
                    case ".xla":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xlc":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xlm":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xls":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xlt":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xlw":
                        contentType = "application/vnd.ms-excel";
                        break;
                    case ".xof":
                        contentType = "x-world/x-vrml";
                        break;
                    case ".xpm":
                        contentType = "image/x-xpixmap";
                        break;
                    case ".xwd":
                        contentType = "image/x-xwindowdump";
                        break;
                    case ".z":
                        contentType = "application/x-compress";
                        break;
                    case ".zip":
                        contentType = "application/zip";
                        break;
    
                    default:
                        contentType = "";
                        break;
                }
                #endregion
    
                return contentType;
            }
    
            public static T GetValueOrDefault<T>(this IDataRecord row, string fieldName)
            {
                int ordinal = row.GetOrdinal(fieldName);
                return row.GetValueOrDefault<T>(ordinal);
            }
    
            public static T GetValueOrDefault<T>(this IDataRecord row, int ordinal)
            {
                return (T) (row.IsDBNull(ordinal) ? default(T) : row.GetValue(ordinal));
            }
    
            public static byte[] StreamToBytes(this Stream input)
            {
                int capacity = input.CanSeek ? (int) input.Length : 0;
                using (MemoryStream output = new MemoryStream(capacity))
                {
                    int readLength;
                    byte[] buffer = new byte[4096];
    
                    do
                    {
                        readLength = input.Read(buffer, 0, buffer.Length);
                        output.Write(buffer, 0, readLength);
                    } while (readLength != 0);
    
                    return output.ToArray();
                }
            }
    
            private static IList<string> SplitIntoChunks(this string text, int chunkSize)
            {
                List<string> chunks = new List<string>();
                int offset = 0;
                while (offset < text.Length)
                {
                    int size = Math.Min(chunkSize, text.Length - offset);
                    chunks.Add(text.Substring(offset, size));
                    offset += size;
                }
                return chunks;
            }
        }
    
        /// <summary>
        /// 
        /// </summary>
        public enum RunState
        {
            /// <summary>
            /// 
            /// </summary>
            Idle = 0,
            /// <summary>
            /// 
            /// </summary>
            Running
        }
    
        /// <summary>
        /// 
        /// </summary>
        public enum PortMode
        {
            /// <summary>
            /// 
            /// </summary>
            FirstAvailable = 0,
            /// <summary>
            /// 
            /// </summary>
            Specific
        }
    
        /// <summary>
        /// 
        /// </summary>
        public enum ErrorField
        {
            /// <summary>
            /// 
            /// </summary>
            None,
            /// <summary>
            /// 
            /// </summary>
            ApplicationPath,
            /// <summary>
            /// 
            /// </summary>
            VirtualPath,
            /// <summary>
            /// 
            /// </summary>
            HostName,
            /// <summary>
            /// 
            /// </summary>
            IsAddHost,
            /// <summary>
            /// 
            /// </summary>
    // ReSharper disable InconsistentNaming
            IPAddress,
    // ReSharper restore InconsistentNaming
            /// <summary>
            /// 
            /// </summary>
    // ReSharper disable InconsistentNaming
            IPAddressAny,
    // ReSharper restore InconsistentNaming
            /// <summary>
            /// 
            /// </summary>
    // ReSharper disable InconsistentNaming
            IPAddressLoopBack,
    // ReSharper restore InconsistentNaming
            /// <summary>
            /// 
            /// </summary>
            Port,
            /// <summary>
            /// 
            /// </summary>
            PortRangeStart,
            /// <summary>
            /// 
            /// </summary>
            PortRangeEnd,
            /// <summary>
            /// 
            /// </summary>
            PortRange
        }
    
        /// <summary>
        /// 
        /// </summary>
    // ReSharper disable InconsistentNaming
        public enum IPMode
    // ReSharper restore InconsistentNaming
        {
            /// <summary>
            /// 
            /// </summary>
            Loopback = 0,
            /// <summary>
            /// 
            /// </summary>
            Any,
            /// <summary>
            /// 
            /// </summary>
            Specific
        }
    
        /// <summary>
        /// 
        /// </summary>
        public enum RunMode
        {
            /// <summary>
            /// 
            /// </summary>
            Server,
            /// <summary>
            /// 
            /// </summary>
            Hostsfile
        }
    
        /// <summary>
        /// 
        /// </summary>
        internal class CassiniException : Exception
        {
            public CassiniException(string message, ErrorField field, Exception innerException)
                : base(message, innerException)
            {
                Field = field;
            }
    
            public CassiniException(string message, ErrorField field)
                : this(message, field, null)
            {
            }
    
            public ErrorField Field { get; set; }
        }
    }
    Common类
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  Copyright (c) Microsoft Corporation. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    using System.Collections.Generic;
    using System.Globalization;
    using System.IO;
    using System.Net;
    using System.Net.Sockets;
    using System.Text;
    using System.Web;
    
    #endregion
    
    namespace SimpleWebServer
    {
        /// <summary>
        /// 
        /// </summary>
        public class Connection : MarshalByRefObject
        {
            private const int HttpForbidden = 403;
    
    // ReSharper disable InconsistentNaming
            private const int HttpOK = 200;
    // ReSharper restore InconsistentNaming
    
            private readonly MemoryStream _responseContent;
            /// <summary>
            /// 
            /// </summary>
            public List<string> Plugins = new List<string>();
            private readonly Server _server;
    
            private Socket _socket;
    
            internal Connection(Server server, Socket socket)
            {
                Plugins = server.Plugins;
                Id = Guid.NewGuid();
                _responseContent = new MemoryStream();
                _server = server;
                _socket = socket;
            }
    
            /// <summary>
            /// 
            /// </summary>
            public bool Connected
            {
                get { return _socket.Connected; }
            }
    
            /// <summary>
            /// 
            /// </summary>
            public Guid Id { get; private set; }
    
            /// <summary>
            /// 
            /// </summary>
    // ReSharper disable InconsistentNaming
            public string LocalIP
    // ReSharper restore InconsistentNaming
            {
                get
                {
                    IPEndPoint ep = (IPEndPoint) _socket.LocalEndPoint;
                    return (ep != null && ep.Address != null) ? ep.Address.ToString() : "127.0.0.1";
                }
            }
    
            
    // ReSharper disable InconsistentNaming
            /// <summary>
            /// 
            /// </summary>
            public string RemoteIP
    // ReSharper restore InconsistentNaming
            {
                get
                {
                    IPEndPoint ep = (IPEndPoint) _socket.RemoteEndPoint;
                    return (ep != null && ep.Address != null) ? ep.Address.ToString() : "127.0.0.1";
                }
            }
    
            /// <summary>
            /// 
            /// </summary>
            public void Close()
            {
                
    
                try
                {
                    _socket.Shutdown(SocketShutdown.Both);
                    _socket.Close();
                }
                    // ReSharper disable EmptyGeneralCatchClause
                catch
                    // ReSharper restore EmptyGeneralCatchClause
                {
                }
                finally
                {
                    _socket = null;
                }
            }
    
            /// <summary>
            /// </summary>
            public override object InitializeLifetimeService()
            {
                return null;
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="maxBytes"></param>
            /// <returns></returns>
            public byte[] ReadRequestBytes(int maxBytes)
            {
                try
                {
                    if (WaitForRequestBytes() == 0)
                    {
                        return null;
                    }
    
                    int numBytes = _socket.Available;
    
                    if (numBytes > maxBytes)
                    {
                        numBytes = maxBytes;
                    }
    
                    int numReceived = 0;
    
                    byte[] buffer = new byte[numBytes];
    
                    if (numBytes > 0)
                    {
                        numReceived = _socket.Receive(buffer, 0, numBytes, SocketFlags.None);
                    }
    
                    if (numReceived < numBytes)
                    {
                        byte[] tempBuffer = new byte[numReceived];
    
                        if (numReceived > 0)
                        {
                            Buffer.BlockCopy(buffer, 0, tempBuffer, 0, numReceived);
                        }
    
                        buffer = tempBuffer;
                    }
    
                    return buffer;
                }
                catch
                {
                    return null;
                }
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <returns></returns>
            public int WaitForRequestBytes()
            {
                int availBytes = 0;
    
                try
                {
                    if (_socket.Available == 0)
                    {
                        _socket.Poll(100000, SelectMode.SelectRead);
    
                        if (_socket.Available == 0 && _socket.Connected)
                        {
                            _socket.Poll(30000000, SelectMode.SelectRead);
                        }
                    }
    
                    availBytes = _socket.Available;
                }
                    // ReSharper disable EmptyGeneralCatchClause
                catch
                    // ReSharper restore EmptyGeneralCatchClause
                {
                }
    
                return availBytes;
            }
    
            /// <summary>
            /// 
            /// </summary>
            public void Write100Continue()
            {
                WriteEntireResponseFromString(100, null, null, true);
            }
    
            internal void Write200Continue()
            {
                WriteEntireResponseFromString(200, null, string.Empty, true);
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="data"></param>
            /// <param name="offset"></param>
            /// <param name="length"></param>
            public void WriteBody(byte[] data, int offset, int length)
            {
                try
                {
                    _responseContent.Write(data, 0, data.Length);
                    _socket.Send(data, offset, length, SocketFlags.None);
                }
                catch (SocketException)
                {
                }
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="fileName"></param>
            /// <param name="keepAlive"></param>
            public void WriteEntireResponseFromFile(String fileName, bool keepAlive)
            {
                if (!File.Exists(fileName))
                {
                    WriteErrorAndClose(404);
                    return;
                }
    
                // Deny the request if the contentType cannot be recognized.
    
                string contentType = CommonExtensions.GetContentType(fileName);
    
                //TODO: i am pretty sure this is unnecessary
                if (contentType == null)
                {
                    WriteErrorAndClose(HttpForbidden);
                    return;
                }
    
                string contentTypeHeader = "Content-Type: " + contentType + "\r\n";
    
                bool completed = false;
                FileStream fs = null;
    
                try
                {
                    fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
                    int len = (int) fs.Length;
                    byte[] fileBytes = new byte[len];
                    int bytesRead = fs.Read(fileBytes, 0, len);
    
                    String headers = MakeResponseHeaders(HttpOK, contentTypeHeader, bytesRead, keepAlive);
                    _socket.Send(Encoding.UTF8.GetBytes(headers));
    
                    _socket.Send(fileBytes, 0, bytesRead, SocketFlags.None);
    
                    completed = true;
                }
                catch (SocketException)
                {
                }
                finally
                {
                    if (!keepAlive || !completed)
                    {
                        Close();
                    }
    
                    if (fs != null)
                    {
                        fs.Close();
                    }
                }
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="statusCode"></param>
            /// <param name="extraHeaders"></param>
            /// <param name="body"></param>
            /// <param name="keepAlive"></param>
            public void WriteEntireResponseFromString(int statusCode, String extraHeaders, String body, bool keepAlive)
            {
                try
                {
                    int bodyLength = (body != null) ? Encoding.UTF8.GetByteCount(body) : 0;
                    string headers = MakeResponseHeaders(statusCode, extraHeaders, bodyLength, keepAlive);
    
                    _socket.Send(Encoding.UTF8.GetBytes(headers + body));
                }
                catch (SocketException)
                {
                }
                finally
                {
                    if (!keepAlive)
                    {
                        Close();
                    }
                }
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="statusCode"></param>
            /// <param name="message"></param>
            public void WriteErrorAndClose(int statusCode, string message)
            {
                WriteEntireResponseFromString(statusCode, null, GetErrorResponseBody(statusCode, message), false);
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="statusCode"></param>
            public void WriteErrorAndClose(int statusCode)
            {
                WriteErrorAndClose(statusCode, null);
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="statusCode"></param>
            /// <param name="extraHeaders"></param>
            public void WriteErrorWithExtraHeadersAndKeepAlive(int statusCode, string extraHeaders)
            {
                WriteEntireResponseFromString(statusCode, extraHeaders, GetErrorResponseBody(statusCode, null), true);
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="statusCode"></param>
            /// <param name="extraHeaders"></param>
            public void WriteHeaders(int statusCode, String extraHeaders)
            {
                string headers = MakeResponseHeaders(statusCode, extraHeaders, -1, false);
    
                try
                {
                    _socket.Send(Encoding.UTF8.GetBytes(headers));
                }
                catch (SocketException)
                {
                }
            }
    
            private string GetErrorResponseBody(int statusCode, string message)
            {
                string body = Messages.FormatErrorMessageBody(statusCode, _server.VirtualPath);
    
                if (!string.IsNullOrEmpty(message))
                {
                    body += "\r\n<!--\r\n" + message + "\r\n-->";
                }
    
                return body;
            }
    
            //private void InitializeLogInfo()
            //{
            //    _requestLog = new LogInfo
            //        {
            //            Created = DateTime.Now,
            //            ConversationId = Id,
            //            RowType = 1,
            //            Identity = _server.GetProcessUser(),
            //            PhysicalPath = _server.PhysicalPath
            //        };
    
            //    _responseLog = new LogInfo
            //        {
            //            ConversationId = Id,
            //            RowType = 2
            //        };
            //}
    
            private static string MakeResponseHeaders(int statusCode, string moreHeaders, int contentLength, bool keepAlive)
            {
                StringBuilder sb = new StringBuilder();
    
                sb.Append("HTTP/1.1 " + statusCode + " " + HttpWorkerRequest.GetStatusDescription(statusCode) + "\r\n");
                sb.Append("Server: Cassini/" + Messages.VersionString + "\r\n");
                sb.Append("Date: " + DateTime.Now.ToUniversalTime().ToString("R", DateTimeFormatInfo.InvariantInfo) + "\r\n");
    
                if (contentLength >= 0)
                {
                    sb.Append("Content-Length: " + contentLength + "\r\n");
                }
    
                if (moreHeaders != null)
                {
                    sb.Append(moreHeaders);
                }
    
                if (!keepAlive)
                {
                    sb.Append("Connection: Close\r\n");
                }
    
                sb.Append("\r\n");
    
                return sb.ToString();
            }
        }
    }
    Connection类
    #region
    
    using System;
    using System.Globalization;
    using System.Security.Permissions;
    using System.Security.Principal;
    using System.Threading;
    using System.Web;
    using System.Web.Hosting;
    
    #endregion
    
    namespace SimpleWebServer
    {
        public class Host : MarshalByRefObject, IRegisteredObject
        {
            private bool _disableDirectoryListing;
    
            private string _installPath;
    
            private string _lowerCasedClientScriptPathWithTrailingSlash;
    
            private string _lowerCasedVirtualPath;
    
            private string _lowerCasedVirtualPathWithTrailingSlash;
    
            private volatile int _pendingCallsCount;
    
            private string _physicalClientScriptPath;
    
            private string _physicalPath;
    
            private int _port;
    
            private bool _requireAuthentication;
    
            private Server _server;
    
            private string _virtualPath;
    
            public AppDomain AppDomain
            {
                get { return AppDomain.CurrentDomain; }
            }
    
            public Host()
            {
                HostingEnvironment.RegisterObject(this);
            }
    
            public bool DisableDirectoryListing
            {
                get { return _disableDirectoryListing; }
            }
    
            public string InstallPath
            {
                get { return _installPath; }
            }
    
            public string NormalizedClientScriptPath
            {
                get { return _lowerCasedClientScriptPathWithTrailingSlash; }
            }
    
            public string NormalizedVirtualPath
            {
                get { return _lowerCasedVirtualPathWithTrailingSlash; }
            }
    
            public string PhysicalClientScriptPath
            {
                get { return _physicalClientScriptPath; }
            }
    
            public string PhysicalPath
            {
                get { return _physicalPath; }
            }
    
            public int Port
            {
                get { return _port; }
            }
    
            public bool RequireAuthentication
            {
                get { return _requireAuthentication; }
            }
    
            public string VirtualPath
            {
                get { return _virtualPath; }
            }
    
            #region IRegisteredObject Members
    
            void IRegisteredObject.Stop(bool immediate)
            {
                // Unhook the Host so Server will process the requests in the new appdomain.
    
                if (_server != null)
                {
                    _server.HostStopped();
                }
    
                // Make sure all the pending calls complete before this Object is unregistered.
                WaitForPendingCallsToFinish();
    
                HostingEnvironment.UnregisterObject(this);
    
                Thread.Sleep(100);
                HttpRuntime.Close();
                Thread.Sleep(100);
            }
    
            #endregion
    
            public void Configure(Server server, int port, string virtualPath, string physicalPath,
                                  bool requireAuthentication)
            {
                Configure(server, port, virtualPath, physicalPath, requireAuthentication, false);
            }
    
            public void Configure(Server server, int port, string virtualPath, string physicalPath)
            {
                Configure(server, port, virtualPath, physicalPath, false, false);
            }
    
            public void Configure(Server server, int port, string virtualPath, string physicalPath,
                                  bool requireAuthentication, bool disableDirectoryListing)
            {
                _server = server;
    
                _port = port;
                _installPath = null;
                _virtualPath = virtualPath;
                _requireAuthentication = requireAuthentication;
                _disableDirectoryListing = disableDirectoryListing;
                _lowerCasedVirtualPath = CultureInfo.InvariantCulture.TextInfo.ToLower(_virtualPath);
                _lowerCasedVirtualPathWithTrailingSlash = virtualPath.EndsWith("/", StringComparison.Ordinal)
                                                              ? virtualPath
                                                              : virtualPath + "/";
                _lowerCasedVirtualPathWithTrailingSlash =
                    CultureInfo.InvariantCulture.TextInfo.ToLower(_lowerCasedVirtualPathWithTrailingSlash);
                _physicalPath = physicalPath;
                _physicalClientScriptPath = HttpRuntime.AspClientScriptPhysicalPath + "\\";
                _lowerCasedClientScriptPathWithTrailingSlash =
                    CultureInfo.InvariantCulture.TextInfo.ToLower(HttpRuntime.AspClientScriptVirtualPath + "/");
            }
    
            public SecurityIdentifier GetProcessSid()
            {
                using (WindowsIdentity identity = new WindowsIdentity(_server.GetProcessToken()))
                {
                    return identity.User;
                }
            }
    
            public IntPtr GetProcessToken()
            {
                new SecurityPermission(PermissionState.Unrestricted).Assert();
                return _server.GetProcessToken();
            }
    
            public string GetProcessUser()
            {
                return _server.GetProcessUser();
            }
    
            public override object InitializeLifetimeService()
            {
                // never expire the license
                return null;
            }
    
            public bool IsVirtualPathAppPath(string path)
            {
                if (path == null)
                {
                    return false;
                }
                path = CultureInfo.InvariantCulture.TextInfo.ToLower(path);
                return (path == _lowerCasedVirtualPath || path == _lowerCasedVirtualPathWithTrailingSlash);
            }
    
            public bool IsVirtualPathInApp(string path, out bool isClientScriptPath)
            {
                isClientScriptPath = false;
    
                if (path == null)
                {
                    return false;
                }
    
                if (_virtualPath == "/" && path.StartsWith("/", StringComparison.Ordinal))
                {
                    if (path.StartsWith(_lowerCasedClientScriptPathWithTrailingSlash, StringComparison.Ordinal))
                    {
                        isClientScriptPath = true;
                    }
                    return true;
                }
    
                path = CultureInfo.InvariantCulture.TextInfo.ToLower(path);
    
                if (path.StartsWith(_lowerCasedVirtualPathWithTrailingSlash, StringComparison.Ordinal))
                {
                    return true;
                }
    
                if (path == _lowerCasedVirtualPath)
                {
                    return true;
                }
    
                if (path.StartsWith(_lowerCasedClientScriptPathWithTrailingSlash, StringComparison.Ordinal))
                {
                    isClientScriptPath = true;
                    return true;
                }
    
                return false;
            }
    
            public bool IsVirtualPathInApp(String path)
            {
                bool isClientScriptPath;
                return IsVirtualPathInApp(path, out isClientScriptPath);
            }
    
            public void ProcessRequest(Connection conn,string dfPage)
            {
                // Add a pending call to make sure our thread doesn't get killed
                AddPendingCall();
    
                try
                {
                    new Request(_server, this, conn, dfPage).Process();
                }
                finally
                {
                    RemovePendingCall();
                }
            }
    
            [SecurityPermission(SecurityAction.Assert, Unrestricted = true)]
            public void Shutdown()
            {
                HostingEnvironment.InitiateShutdown();
            }
    
            private void AddPendingCall()
            {
                //TODO: investigate this issue - ref var not volitile
    #pragma warning disable 0420
                Interlocked.Increment(ref _pendingCallsCount);
    #pragma warning restore 0420
            }
    
            private void RemovePendingCall()
            {
                //TODO: investigate this issue - ref var not volitile
    #pragma warning disable 0420
                Interlocked.Decrement(ref _pendingCallsCount);
    #pragma warning restore 0420
            }
    
            private void WaitForPendingCallsToFinish()
            {
                for (; ; )
                {
                    if (_pendingCallsCount <= 0)
                    {
                        break;
                    }
    
                    Thread.Sleep(250);
                }
            }
        }
    }
    Host类
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    using System.Runtime.InteropServices;
    
    #endregion
    
    namespace SimpleWebServer
    {
        internal static class Interop
        {
            #region Structs
    
            [DllImport("SECUR32.DLL", CharSet = CharSet.Unicode)]
            public static extern int AcceptSecurityContext(ref SecHandle phCredential, IntPtr phContext,
                                                           ref SecBufferDesc pInput, uint fContextReq, uint TargetDataRep,
                                                           ref SecHandle phNewContext, ref SecBufferDesc pOutput,
                                                           ref uint pfContextAttr, ref long ptsTimeStamp);
    
            [DllImport("SECUR32.DLL", CharSet = CharSet.Unicode)]
            public static extern int AcquireCredentialsHandle(string pszPrincipal, string pszPackage, uint fCredentialUse,
                                                              IntPtr pvLogonID, IntPtr pAuthData, IntPtr pGetKeyFn,
                                                              IntPtr pvGetKeyArgument, ref SecHandle phCredential,
                                                              ref long ptsExpiry);
    
            [DllImport("KERNEL32.DLL", CharSet = CharSet.Unicode)]
            public static extern int CloseHandle(IntPtr phToken);
    
            [DllImport("SECUR32.DLL", CharSet = CharSet.Unicode)]
            public static extern int DeleteSecurityContext(ref SecHandle phContext);
    
            /// <summary>
            /// FIX: #12506
            /// </summary>
            [DllImport("urlmon.dll", CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = false)]
            public static extern int FindMimeFromData(IntPtr pBC, [MarshalAs(UnmanagedType.LPWStr)] string pwzUrl,
                                                      [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.I1,
                                                          SizeParamIndex = 3)] byte[] pBuffer, int cbSize,
                                                      [MarshalAs(UnmanagedType.LPWStr)] string pwzMimeProposed,
                                                      int dwMimeFlags, out IntPtr ppwzMimeOut, int dwReserved);
    
            [DllImport("SECUR32.DLL", CharSet = CharSet.Unicode)]
            public static extern int FreeCredentialsHandle(ref SecHandle phCredential);
    
            [DllImport("kernel32.dll", EntryPoint = "GetConsoleScreenBufferInfo", SetLastError = true,
                CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
            public static extern int GetConsoleScreenBufferInfo(int hConsoleOutput,
                                                                ref CONSOLE_SCREEN_BUFFER_INFO lpConsoleScreenBufferInfo);
    
            [DllImport("KERNEL32.DLL", SetLastError = true)]
            public static extern IntPtr GetCurrentThread();
    
            [DllImport("kernel32.dll", EntryPoint = "GetStdHandle", SetLastError = true, CharSet = CharSet.Auto,
                CallingConvention = CallingConvention.StdCall)]
            public static extern int GetStdHandle(int nStdHandle);
    
            [DllImport("ADVAPI32.DLL", SetLastError = true)]
            public static extern bool ImpersonateSelf(int level);
    
            [DllImport("ADVAPI32.DLL", SetLastError = true)]
            public static extern int OpenThreadToken(IntPtr thread, int access, bool openAsSelf, ref IntPtr hToken);
    
            [DllImport("SECUR32.DLL", CharSet = CharSet.Unicode)]
            public static extern int QuerySecurityContextToken(ref SecHandle phContext, ref IntPtr phToken);
    
            [DllImport("ADVAPI32.DLL", SetLastError = true)]
            public static extern int RevertToSelf();
    
            #region Nested type: CONSOLE_SCREEN_BUFFER_INFO
    
            public struct CONSOLE_SCREEN_BUFFER_INFO
            {
                internal COORD dwCursorPosition;
                internal COORD dwMaximumWindowSize;
                internal COORD dwSize;
                internal SMALL_RECT srWindow;
                internal Int16 wAttributes;
            }
    
            #endregion
    
            #region Nested type: COORD
    
            public struct COORD
            {
                internal Int16 x;
                internal Int16 y;
            }
    
            #endregion
    
            #region Nested type: SecBuffer
    
            [StructLayout(LayoutKind.Sequential)]
            public struct SecBuffer
            {
                // ReSharper disable InconsistentNaming
                public uint cbBuffer;
                public uint BufferType;
                public IntPtr pvBuffer;
                // ReSharper restore InconsistentNaming
            }
    
            #endregion
    
            #region Nested type: SecBufferDesc
    
            [StructLayout(LayoutKind.Sequential)]
            public struct SecBufferDesc
            {
                // ReSharper disable InconsistentNaming
                public uint ulVersion;
                public uint cBuffers;
                public IntPtr pBuffers;
                // ReSharper restore InconsistentNaming
            }
    
            #endregion
    
            #region Nested type: SecHandle
    
            [StructLayout(LayoutKind.Sequential)]
            public struct SecHandle
            {
                // ReSharper disable InconsistentNaming
                public IntPtr dwLower;
                public IntPtr dwUpper;
                // ReSharper restore InconsistentNaming
            }
    
            #endregion
    
            #region Nested type: SMALL_RECT
    
            public struct SMALL_RECT
            {
                internal Int16 Bottom;
                internal Int16 Left;
                internal Int16 Right;
                internal Int16 Top;
            }
    
            #endregion
    
            #endregion
        }
    }
    Interop
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) Microsoft Corporation. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System.IO;
    using System.Text;
    using System.Web;
    
    #endregion
    
    namespace SimpleWebServer
    {
        /// <summary>
        /// TODO: get this into resources
        /// </summary>
        internal static class Messages
        {
            private const string _dirListingDirFormat =
                @"{0,38:dddd, MMMM dd, yyyy hh:mm tt}        &lt;dir&gt; <A href=""{1}/"">{2}</A>
    ";
    
            private const string _dirListingFileFormat =
                @"{0,38:dddd, MMMM dd, yyyy hh:mm tt} {1,12:n0} <A href=""{2}"">{3}</A>
    ";
    
            private const string _dirListingFormat1 =
                @"<html>
        <head>
        <title>Directory Listing -- {0}</title>
    ";
    
            private const string _dirListingFormat2 =
                @"    </head>
        <body bgcolor=""white"">
    
        <h2> <i>Directory Listing -- {0}</i> </h2></span>
    
                <hr width=100% size=1 color=silver>
    
    <PRE>
    ";
    
            private const string _dirListingParentFormat =
                @"<A href=""{0}"">[To Parent Directory]</A>
    
    ";
    
            private const string _httpErrorFormat1 =
                @"<html>
        <head>
            <title>{0}</title>
    ";
    
            private const string _httpStyle =
                @"        <style>
                body {font-family:""Verdana"";font-weight:normal;font-size: 8pt;color:black;} 
                p {font-family:""Verdana"";font-weight:normal;color:black;margin-top: -5px}
                b {font-family:""Verdana"";font-weight:bold;color:black;margin-top: -5px}
                h1 { font-family:""Verdana"";font-weight:normal;font-size:18pt;color:red }
                h2 { font-family:""Verdana"";font-weight:normal;font-size:14pt;color:maroon }
                pre {font-family:""Lucida Console"";font-size: 8pt}
                .marker {font-weight: bold; color: black;text-decoration: none;}
                .version {color: gray;}
                .error {margin-bottom: 10px;}
                .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
            </style>
    ";
    
            private static readonly string _dirListingTail =
                @"</PRE>
                <hr width=100% size=1 color=silver>
    
                <b>Version Information:</b>&nbsp;CassiniDev Web Server " +
                VersionString + @"
    
                </font>
    
        </body>
    </html>
    ";
    
            private static readonly string _httpErrorFormat2 =
                @"    </head>
        <body bgcolor=""white"">
    
                <span><h1>Server Error in '{0}' Application.<hr width=100% size=1 color=silver></h1>
    
                <h2> <i>HTTP Error {1} - {2}.</i> </h2></span>
    
                <hr width=100% size=1 color=silver>
    
                <b>Version Information:</b>&nbsp;CassiniDev Web Server " +
                VersionString + @"
    
                </font>
    
        </body>
    </html>
    ";
    
            public static string VersionString = typeof (Server).Assembly.GetName().Version.ToString();
    
            public static string FormatDirectoryListing(string dirPath, string parentPath, FileSystemInfo[] elements)
            {
                StringBuilder sb = new StringBuilder();
    
                sb.Append(string.Format(_dirListingFormat1, dirPath));
                sb.Append(_httpStyle);
                sb.Append(string.Format(_dirListingFormat2, dirPath));
    
                if (parentPath != null)
                {
                    if (!parentPath.EndsWith("/"))
                    {
                        parentPath += "/";
                    }
    
                    sb.Append(string.Format(_dirListingParentFormat, parentPath));
                }
    
                if (elements != null)
                {
                    for (int i = 0; i < elements.Length; i++)
                    {
                        if (elements[i] is FileInfo)
                        {
                            FileInfo fi = (FileInfo) elements[i];
                            sb.Append(string.Format(_dirListingFileFormat,
                                                    fi.LastWriteTime, fi.Length, fi.Name, fi.Name));
                        }
                        else if (elements[i] is DirectoryInfo)
                        {
                            DirectoryInfo di = (DirectoryInfo) elements[i];
                            sb.Append(string.Format(_dirListingDirFormat,
                                                    di.LastWriteTime, di.Name, di.Name));
                        }
                    }
                }
    
                sb.Append(_dirListingTail);
                return sb.ToString();
            }
    
            public static string FormatErrorMessageBody(int statusCode, string appName)
            {
                string desc = HttpWorkerRequest.GetStatusDescription(statusCode);
    
                return string.Format(_httpErrorFormat1, desc)
                       + _httpStyle
                       + string.Format(_httpErrorFormat2, appName, statusCode, desc);
            }
        }
    }
    Messages
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  Copyright (c) Microsoft Corporation. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    using System.Collections.Generic;
    using System.Collections.Specialized;
    using System.Globalization;
    using System.IO;
    using System.Linq;
    using System.Reflection;
    using System.Security;
    using System.Security.Permissions;
    using System.Text;
    using System.Web;
    using System.Web.Hosting;
    using Microsoft.Win32.SafeHandles;
    using System.Security.Principal;
    
    #endregion
    
    namespace SimpleWebServer
    {
        public class Request : SimpleWorkerRequest
        {
            private const int MaxChunkLength = 64 * 1024;
    
            private const int MaxHeaderBytes = 32 * 1024;
    
            private static readonly char[] BadPathChars = new[] { '%', '>', '<', ':', '\\' };
    
            private static readonly string[] DefaultFileNames = new[] { "default.aspx", "default.htm", "default.html" };
    
            private static readonly char[] IntToHex = new[]
                {
                    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
                };
    
            private static readonly string[] RestrictedDirs = new[]
                {
                    "/bin",
                    "/app_browsers",
                    "/app_code",
                    "/app_data",
                    "/app_localresources",
                    "/app_globalresources",
                    "/app_webreferences"
                };
    
            private readonly IStackWalk _connectionPermission = new PermissionSet(PermissionState.Unrestricted);
            private readonly Host _host;
            private readonly Server _server;
    
            private string _allRawHeaders;
    
            private byte[] _body;
    
            private int _bodyLength;
    
            private Connection _connection;
    
            private int _contentLength;
    
            // security permission to Assert remoting calls to _connection
            private int _endHeadersOffset;
    
            private string _filePath;
    
            private byte[] _headerBytes;
    
            private List<ByteString> _headerByteStrings;
    
            private bool _headersSent;
    
            // parsed request data
    
            private bool _isClientScriptPath;
    
            private string[] _knownRequestHeaders;
    
            private string _path;
    
            private string _pathInfo;
    
            private string _pathTranslated;
    
            private string _protocol;
    
            private string _queryString;
            private byte[] _queryStringBytes;
    
            private List<byte[]> _responseBodyBytes;
    
            private StringBuilder _responseHeadersBuilder;
    
            private int _responseStatus;
    
            private bool _specialCaseStaticFileHeaders;
    
            private int _startHeadersOffset;
    
            private string[][] _unknownRequestHeaders;
    
            private string _url;
    
            private string _verb;
    
            private string _dfPage;
    
    
            public Request(Server server, Host host, Connection connection,string dfPage)
                : base(String.Empty, String.Empty, null)
            {
                _connectionPermission = new PermissionSet(PermissionState.Unrestricted);
                _server = server;
                _host = host;
                _connection = connection;
                _dfPage = dfPage;
            }
    
            public override void CloseConnection()
            {
                _connectionPermission.Assert();
                _connection.Close();
            }
    
            public override void EndOfRequest()
            {
                Connection conn = _connection;
                if (conn != null)
                {
                    _connection = null;
                    _server.OnRequestEnd(conn);
                }
    
            }
    
            public override void FlushResponse(bool finalFlush)
            {
                if (_responseStatus == 404 && !_headersSent && finalFlush && _verb == "GET")
                {
                    
                    // attempt directory listing
                    if (ProcessDirectoryListingRequest())
                    {
                        return;
                    }
                }
    
                _connectionPermission.Assert();
    
                if (!_headersSent)
                {
                    _connection.WriteHeaders(_responseStatus, _responseHeadersBuilder.ToString());
    
                    _headersSent = true;
                }
                foreach (byte[] bytes in _responseBodyBytes)
                {
                    _connection.WriteBody(bytes, 0, bytes.Length);
                }
    
                _responseBodyBytes = new List<byte[]>();
    
                if (finalFlush)
                {
                    _connection.Close();
                }
            }
    
            public override string GetAppPath()
            {
                return _host.VirtualPath;
            }
    
            public override string GetAppPathTranslated()
            {
                return _host.PhysicalPath;
            }
    
            public override string GetFilePath()
            {
                return _filePath;
            }
    
            public override string GetFilePathTranslated()
            {
                return _pathTranslated;
            }
    
            public override string GetHttpVerbName()
            {
                return _verb;
            }
    
            public override string GetHttpVersion()
            {
                return _protocol;
            }
    
            public override string GetKnownRequestHeader(int index)
            {
                return _knownRequestHeaders[index];
            }
    
            public override string GetLocalAddress()
            {
                _connectionPermission.Assert();
                return _connection.LocalIP;
            }
    
            public override int GetLocalPort()
            {
                return _host.Port;
            }
    
            public override string GetPathInfo()
            {
                return _pathInfo;
            }
    
            public override byte[] GetPreloadedEntityBody()
            {
                return _body;
            }
    
            public override string GetQueryString()
            {
                return _queryString;
            }
    
            public override byte[] GetQueryStringRawBytes()
            {
                return _queryStringBytes;
            }
    
            public override string GetRawUrl()
            {
                return _url;
            }
    
            public override string GetRemoteAddress()
            {
                _connectionPermission.Assert();
                return _connection.RemoteIP;
            }
    
            public override int GetRemotePort()
            {
                return 0;
            }
    
            public override string GetServerName()
            {
                string localAddress = GetLocalAddress();
                if (localAddress.Equals("127.0.0.1"))
                {
                    return "localhost";
                }
                return localAddress;
            }
    
            public override string GetServerVariable(string name)
            {
                string processUser = string.Empty;
                string str2 = name;
                if (str2 == null)
                {
                    return processUser;
                }
                if (str2 != "ALL_RAW")
                {
                    if (str2 != "SERVER_PROTOCOL")
                    {
                        if (str2 == "LOGON_USER")
                        {
                            if (GetUserToken() != IntPtr.Zero)
                            {
                                processUser = _host.GetProcessUser();
                            }
                            return processUser;
                        }
                        if ((str2 == "AUTH_TYPE") && (GetUserToken() != IntPtr.Zero))
                        {
                            processUser = "NTLM";
                        }
                        return processUser;
                    }
                }
                else
                {
                    return _allRawHeaders;
                }
                return _protocol;
            }
    
            public override string GetUnknownRequestHeader(string name)
            {
                int n = _unknownRequestHeaders.Length;
    
                for (int i = 0; i < n; i++)
                {
                    if (string.Compare(name, _unknownRequestHeaders[i][0], StringComparison.OrdinalIgnoreCase) == 0)
                    {
                        return _unknownRequestHeaders[i][1];
                    }
                }
    
                return null;
            }
    
            public override string[][] GetUnknownRequestHeaders()
            {
                return _unknownRequestHeaders;
            }
    
            ///////////////////////////////////////////////////////////////////////////////////////////////
            // Implementation of HttpWorkerRequest
    
            public override string GetUriPath()
            {
                return _path;
            }
    
            public Connection GetConnection()
            {
                return _connection;
            }
    
    
            public override bool HeadersSent()
            {
                return _headersSent;
            }
    
            public override bool IsClientConnected()
            {
                _connectionPermission.Assert();
                return _connection.Connected;
            }
    
            public override bool IsEntireEntityBodyIsPreloaded()
            {
                return (_contentLength == _bodyLength);
            }
    
            public override string MapPath(string path)
            {
                string mappedPath;
                bool isClientScriptPath;
    
                if (string.IsNullOrEmpty(path) || path.Equals("/"))
                {
                    // asking for the site root
                    mappedPath = _host.VirtualPath == "/" ? _host.PhysicalPath : Environment.SystemDirectory;
                }
                else if (_host.IsVirtualPathAppPath(path))
                {
                    // application path
                    mappedPath = _host.PhysicalPath;
                }
                else if (_host.IsVirtualPathInApp(path, out isClientScriptPath))
                {
                    if (isClientScriptPath)
                    {
                        mappedPath = _host.PhysicalClientScriptPath +
                                     path.Substring(_host.NormalizedClientScriptPath.Length);
                    }
                    else
                    {
                        // inside app but not the app path itself
                        mappedPath = _host.PhysicalPath + path.Substring(_host.NormalizedVirtualPath.Length);
                    }
                }
                else
                {
                    // outside of app -- make relative to app path
                    if (path.StartsWith("/", StringComparison.Ordinal))
                    {
                        mappedPath = _host.PhysicalPath + path.Substring(1);
                    }
                    else
                    {
                        mappedPath = _host.PhysicalPath + path;
                    }
                }
    
                mappedPath = mappedPath.Replace('/', '\\');
    
                if (mappedPath.EndsWith("\\", StringComparison.Ordinal) &&
                    !mappedPath.EndsWith(":\\", StringComparison.Ordinal))
                {
                    mappedPath = mappedPath.Substring(0, mappedPath.Length - 1);
                }
    
                return mappedPath;
            }
    
            [AspNetHostingPermission(SecurityAction.Assert, Level = AspNetHostingPermissionLevel.Medium)]
            public void Process()
            {
                // read the request
                if (!TryParseRequest())
                {
                    return;
                }
    
                // 100 response to POST
                if (_verb == "POST" && _contentLength > 0 && _bodyLength < _contentLength)
                {
                    _connection.Write100Continue();
                }
                if (!_host.RequireAuthentication)
                {
                    // special case for client script
                    if (_isClientScriptPath)
                    {
                        _connection.WriteEntireResponseFromFile(
                            _host.PhysicalClientScriptPath + _path.Substring(_host.NormalizedClientScriptPath.Length), false);
                        return;
                    }
    
                    // deny access to code, bin, etc.
                    if (IsRequestForRestrictedDirectory())
                    {
                        _connection.WriteErrorAndClose(403);
                        return;
                    }
    
                    // special case for a request to a directory (ensure / at the end and process default documents)
                    if (ProcessDirectoryRequest())
                    {
                        return;
                    }
    
    
    
                    PrepareResponse();
    
                    // Hand the processing over to HttpRuntime
                    HttpRuntime.ProcessRequest(this);
                }
            }
    
            public override int ReadEntityBody(byte[] buffer, int size)
            {
                int bytesRead = 0;
    
                _connectionPermission.Assert();
                byte[] bytes = _connection.ReadRequestBytes(size);
    
                if (bytes != null && bytes.Length > 0)
                {
                    bytesRead = bytes.Length;
                    Buffer.BlockCopy(bytes, 0, buffer, 0, bytesRead);
                }
    
                return bytesRead;
            }
    
            public override void SendCalculatedContentLength(int contentLength)
            {
                if (!_headersSent)
                {
                    _responseHeadersBuilder.Append("Content-Length: ");
                    _responseHeadersBuilder.Append(contentLength.ToString(CultureInfo.InvariantCulture));
                    _responseHeadersBuilder.Append("\r\n");
                }
            }
    
            public override void SendKnownResponseHeader(int index, string value)
            {
                if (_headersSent)
                {
                    return;
                }
    
                switch (index)
                {
                    case HeaderServer:
                    case HeaderDate:
                    case HeaderConnection:
                        // ignore these
                        return;
                    case HeaderAcceptRanges:
                        // FIX: #14359
                        if (value != "bytes")
                        {
                            // use this header to detect when we're processing a static file
                            break;
                        }
                        _specialCaseStaticFileHeaders = true;
                        return;
    
                    case HeaderExpires:
                    case HeaderLastModified:
                        // FIX: #14359
                        if (!_specialCaseStaticFileHeaders)
                        {
                            // NOTE: Ignore these for static files. These are generated
                            //       by the StaticFileHandler, but they shouldn't be.
                            break;
                        }
                        return;
    
    
                    // FIX: #12506
                    case HeaderContentType:
    
                        string contentType = null;
    
                        if (value == "application/octet-stream")
                        {
                            // application/octet-stream is default for unknown so lets
                            // take a shot at determining the type.
                            // don't do this for other content-types as you are going to
                            // end up sending text/plain for endpoints that are handled by
                            // asp.net such as .aspx, .asmx, .axd, etc etc
                            contentType = CommonExtensions.GetContentType(_pathTranslated);
                        }
                        value = contentType ?? value;
                        break;
                }
    
                _responseHeadersBuilder.Append(GetKnownResponseHeaderName(index));
                _responseHeadersBuilder.Append(": ");
                _responseHeadersBuilder.Append(value);
                _responseHeadersBuilder.Append("\r\n");
            }
    
            public void SetResponseHeader(string name, string value)
            {
                _responseHeadersBuilder.Append(name);
                _responseHeadersBuilder.Append(": ");
                _responseHeadersBuilder.Append(value);
                _responseHeadersBuilder.Append("\r\n");
            }
    
            public override void SendResponseFromFile(string filename, long offset, long length)
            {
                if (length == 0)
                {
                    return;
                }
    
                FileStream f = null;
                try
                {
                    f = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
                    SendResponseFromFileStream(f, offset, length);
                }
                finally
                {
                    if (f != null)
                    {
                        f.Close();
                    }
                }
            }
    
            public override void SendResponseFromFile(IntPtr handle, long offset, long length)
            {
                if (length == 0)
                {
                    return;
                }
    
                using (var sfh = new SafeFileHandle(handle, false))
                {
                    using (var f = new FileStream(sfh, FileAccess.Read))
                    {
                        SendResponseFromFileStream(f, offset, length);
                    }
                }
            }
    
            public override void SendResponseFromMemory(byte[] data, int length)
            {
                if (length > 0)
                {
                    var bytes = new byte[length];
    
                    Buffer.BlockCopy(data, 0, bytes, 0, length);
                    _responseBodyBytes.Add(bytes);
                }
            }
    
            public override void SendStatus(int statusCode, string statusDescription)
            {
                _responseStatus = statusCode;
            }
    
            public override void SendUnknownResponseHeader(string name, string value)
            {
                if (_headersSent)
                    return;
    
                _responseHeadersBuilder.Append(name);
                _responseHeadersBuilder.Append(": ");
                _responseHeadersBuilder.Append(value);
                _responseHeadersBuilder.Append("\r\n");
            }
    
            private bool IsBadPath()
            {
                if (_path.IndexOfAny(BadPathChars) >= 0)
                {
                    return true;
                }
    
                if (CultureInfo.InvariantCulture.CompareInfo.IndexOf(_path, "..", CompareOptions.Ordinal) >= 0)
                {
                    return true;
                }
    
                if (CultureInfo.InvariantCulture.CompareInfo.IndexOf(_path, "//", CompareOptions.Ordinal) >= 0)
                {
                    return true;
                }
    
                return false;
            }
    
            private bool IsRequestForRestrictedDirectory()
            {
                String p = CultureInfo.InvariantCulture.TextInfo.ToLower(_path);
    
                if (_host.VirtualPath != "/")
                {
                    p = p.Substring(_host.VirtualPath.Length);
                }
    
                foreach (String dir in RestrictedDirs)
                {
                    if (p.StartsWith(dir, StringComparison.Ordinal))
                    {
                        if (p.Length == dir.Length || p[dir.Length] == '/')
                        {
                            return true;
                        }
                    }
                }
    
                return false;
            }
    
            private void ParseHeaders()
            {
                _knownRequestHeaders = new string[RequestHeaderMaximum];
    
                // construct unknown headers as array list of name1,value1,...
                var headers = new List<string>();
    
                for (int i = 1; i < _headerByteStrings.Count; i++)
                {
                    string s = _headerByteStrings[i].GetString();
    
                    int c = s.IndexOf(':');
    
                    if (c >= 0)
                    {
                        string name = s.Substring(0, c).Trim();
                        string value = s.Substring(c + 1).Trim();
    
                        // remember
                        int knownIndex = GetKnownRequestHeaderIndex(name);
                        if (knownIndex >= 0)
                        {
                            _knownRequestHeaders[knownIndex] = value;
                        }
                        else
                        {
                            headers.Add(name);
                            headers.Add(value);
                        }
                    }
                }
    
                // copy to array unknown headers
    
                int n = headers.Count / 2;
                _unknownRequestHeaders = new string[n][];
                int j = 0;
    
                for (int i = 0; i < n; i++)
                {
                    _unknownRequestHeaders[i] = new string[2];
                    _unknownRequestHeaders[i][0] = headers[j++];
                    _unknownRequestHeaders[i][1] = headers[j++];
                }
    
                // remember all raw headers as one string
    
                if (_headerByteStrings.Count > 1)
                {
                    _allRawHeaders = Encoding.UTF8.GetString(_headerBytes, _startHeadersOffset,
                                                             _endHeadersOffset - _startHeadersOffset);
                }
                else
                {
                    _allRawHeaders = String.Empty;
                }
            }
    
            private void ParsePostedContent()
            {
                _contentLength = 0;
                _bodyLength = 0;
    
                string contentLengthValue = _knownRequestHeaders[HeaderContentLength];
                if (contentLengthValue != null)
                {
                    try
                    {
                        _contentLength = Int32.Parse(contentLengthValue, CultureInfo.InvariantCulture);
                    }
                    // ReSharper disable EmptyGeneralCatchClause
                    catch
                    // ReSharper restore EmptyGeneralCatchClause
                    {
                    }
                }
    
                if (_headerBytes.Length > _endHeadersOffset)
                {
                    _bodyLength = _headerBytes.Length - _endHeadersOffset;
    
                    if (_bodyLength > _contentLength)
                    {
                        _bodyLength = _contentLength; // don't read more than the content-length
                    }
    
                    if (_bodyLength > 0)
                    {
                        _body = new byte[_bodyLength];
                        Buffer.BlockCopy(_headerBytes, _endHeadersOffset, _body, 0, _bodyLength);
                    }
                }
            }
    
            private void ParseRequestLine()
            {
                ByteString requestLine = _headerByteStrings[0];
                ByteString[] elems = requestLine.Split(' ');
    
                if (elems == null || elems.Length < 2 || elems.Length > 3)
                {
                    _connection.WriteErrorAndClose(400);
                    return;
                }
    
                _verb = elems[0].GetString();
    
                ByteString urlBytes = elems[1];
                _url = urlBytes.GetString();
    
                _protocol = elems.Length == 3 ? elems[2].GetString() : "HTTP/1.0";
    
                // query string
    
                int iqs = urlBytes.IndexOf('?');
                _queryStringBytes = iqs > 0 ? urlBytes.Substring(iqs + 1).GetBytes() : new byte[0];
    
                iqs = _url.IndexOf('?');
                if (_url == "/" && !String.IsNullOrEmpty(_dfPage))
                    _path = _dfPage;
                else if (iqs > 0)
                {
                    _path = _url.Substring(0, iqs);
                    _queryString = _url.Substring(iqs + 1);
                }
                else
                {
                    _path = _url;
                    _queryStringBytes = new byte[0];
                }
    
                // url-decode path
    
                if (_path.IndexOf('%') >= 0)
                {
                    _path = HttpUtility.UrlDecode(_path, Encoding.UTF8);
    
                    iqs = _url.IndexOf('?');
                    if (iqs >= 0)
                    {
                        _url = _path + _url.Substring(iqs);
                    }
                    else
                    {
                        _url = _path;
                    }
                }
    
                // path info
    
                int lastDot = _path.LastIndexOf('.');
                int lastSlh = _path.LastIndexOf('/');
    
                if (lastDot >= 0 && lastSlh >= 0 && lastDot < lastSlh)
                {
                    int ipi = _path.IndexOf('/', lastDot);
                    _filePath = _path.Substring(0, ipi);
                    _pathInfo = _path.Substring(ipi);
                }
                else
                {
                    _filePath = _path;
                    _pathInfo = String.Empty;
                }
    
                _pathTranslated = MapPath(_filePath);
    
            }
    
            private void PrepareResponse()
            {
                _headersSent = false;
                _responseStatus = 200;
                _responseHeadersBuilder = new StringBuilder();
                _responseBodyBytes = new List<byte[]>();
    
                ProcessPlugins();
            }
    
            private bool ProcessDirectoryListingRequest()
            {
                if (_verb != "GET")
                {
                    return false;
                }
    
                String dirPathTranslated = _pathTranslated;
    
                if (_pathInfo.Length > 0)
                {
                    // directory path can never have pathInfo
                    dirPathTranslated = MapPath(_path);
                }
    
                if (!Directory.Exists(dirPathTranslated))
                {
                    return false;
                }
    
                // get all files and subdirs
                FileSystemInfo[] infos = null;
                try
                {
                    infos = (new DirectoryInfo(dirPathTranslated)).GetFileSystemInfos();
                }
                // ReSharper disable EmptyGeneralCatchClause
                catch
                // ReSharper restore EmptyGeneralCatchClause
                {
                }
    
                // determine if parent is appropriate
                string parentPath = null;
    
                if (_path.Length > 1)
                {
                    int i = _path.LastIndexOf('/', _path.Length - 2);
    
                    parentPath = (i > 0) ? _path.Substring(0, i) : "/";
                    if (!_host.IsVirtualPathInApp(parentPath))
                    {
                        parentPath = null;
                    }
                }
    
                _connection.WriteEntireResponseFromString(200, "Content-type: text/html; charset=utf-8\r\n",
                                                          Messages.FormatDirectoryListing(_path, parentPath, infos),
                                                          false);
                return true;
            }
    
            private bool ProcessDirectoryRequest()
            {
                String dirPathTranslated = _pathTranslated;
    
                if (_pathInfo.Length > 0)
                {
                    // directory path can never have pathInfo
                    dirPathTranslated = MapPath(_path);
                }
    
                if (!Directory.Exists(dirPathTranslated))
                {
                    return false;
                }
    
                // have to redirect /foo to /foo/ to allow relative links to work
                if (!_path.EndsWith("/", StringComparison.Ordinal))
                {
                    string newPath = _path + "/";
                    string location = "Location: " + UrlEncodeRedirect(newPath) + "\r\n";
                    string body = "<html><head><title>Object moved</title></head><body>\r\n" +
                                  "<h2>Object moved to <a href='" + newPath + "'>here</a>.</h2>\r\n" +
                                  "</body></html>\r\n";
    
                    _connection.WriteEntireResponseFromString(302, location, body, false);
                    return true;
                }
    
                // check for the default file
                foreach (string filename in DefaultFileNames)
                {
                    string defaultFilePath = dirPathTranslated + "\\" + filename;
    
                    if (File.Exists(defaultFilePath))
                    {
                        // pretend the request is for the default file path
                        _path += filename;
                        _filePath = _path;
                        _url = (_queryString != null) ? (_path + "?" + _queryString) : _path;
                        _pathTranslated = defaultFilePath;
                        return false; // go through normal processing
                    }
                }
    
                return false; // go through normal processing
            }
    
            private void ReadAllHeaders()
            {
                _headerBytes = null;
    
                do
                {
                    if (!TryReadAllHeaders())
                    {
                        // something bad happened
                        break;
                    }
                } while (_endHeadersOffset < 0); // found \r\n\r\n
    
            }
    
            private void Reset()
            {
                _headerBytes = null;
                _startHeadersOffset = 0;
                _endHeadersOffset = 0;
                _headerByteStrings = null;
    
                _isClientScriptPath = false;
    
                _verb = null;
                _url = null;
                _protocol = null;
    
                _path = null;
                _filePath = null;
                _pathInfo = null;
                _pathTranslated = null;
                _queryString = null;
                _queryStringBytes = null;
    
                _contentLength = 0;
                _bodyLength = 0;
                _body = null;
    
                _allRawHeaders = null;
                _unknownRequestHeaders = null;
                _knownRequestHeaders = null;
                _specialCaseStaticFileHeaders = false;
            }
    
            private void SendResponseFromFileStream(Stream f, long offset, long length)
            {
                long fileSize = f.Length;
    
                if (length == -1)
                {
                    length = fileSize - offset;
                }
    
                if (length == 0 || offset < 0 || length > fileSize - offset)
                {
                    return;
                }
    
                if (offset > 0)
                {
                    f.Seek(offset, SeekOrigin.Begin);
                }
    
                if (length <= MaxChunkLength)
                {
                    var fileBytes = new byte[(int)length];
                    int bytesRead = f.Read(fileBytes, 0, (int)length);
                    SendResponseFromMemory(fileBytes, bytesRead);
                }
                else
                {
                    var chunk = new byte[MaxChunkLength];
                    var bytesRemaining = (int)length;
    
                    while (bytesRemaining > 0)
                    {
                        int bytesToRead = (bytesRemaining < MaxChunkLength) ? bytesRemaining : MaxChunkLength;
                        int bytesRead = f.Read(chunk, 0, bytesToRead);
    
                        SendResponseFromMemory(chunk, bytesRead);
                        bytesRemaining -= bytesRead;
    
                        // flush to release keep memory
                        if ((bytesRemaining > 0) && (bytesRead > 0))
                        {
                            FlushResponse(false);
                        }
                    }
                }
            }
    
            private void SkipAllPostedContent()
            {
                if ((_contentLength > 0) && (_bodyLength < _contentLength))
                {
                    byte[] buffer;
                    for (int i = _contentLength - _bodyLength; i > 0; i -= buffer.Length)
                    {
                        buffer = _connection.ReadRequestBytes(i);
                        if ((buffer == null) || (buffer.Length == 0))
                        {
                            return;
                        }
                    }
                }
            }
    
    
            /// <summary>
            /// TODO: defer response until request is written
            /// </summary>
            /// <returns></returns>
            private bool TryParseRequest()
            {
                Reset();
    
                ReadAllHeaders();
    
                if (_headerBytes == null || _endHeadersOffset < 0 ||
                    _headerByteStrings == null || _headerByteStrings.Count == 0)
                {
                    _connection.WriteErrorAndClose(400);
                    return false;
                }
    
                ParseRequestLine();
    
                // Check for bad path
                if (IsBadPath())
                {
                    _connection.WriteErrorAndClose(400);
                    return false;
                }
    
                // Check if the path is not well formed or is not for the current app
                if (!_host.IsVirtualPathInApp(_path, out _isClientScriptPath))
                {
                    _connection.WriteErrorAndClose(404);
                    return false;
                }
    
                ParseHeaders();
    
                ParsePostedContent();
    
                return true;
            }
    
            private bool TryReadAllHeaders()
            {
                // read the first packet (up to 32K)
                byte[] headerBytes = _connection.ReadRequestBytes(MaxHeaderBytes);
    
                if (headerBytes == null || headerBytes.Length == 0)
                    return false;
    
                if (_headerBytes != null)
                {
                    // previous partial read
                    int len = headerBytes.Length + _headerBytes.Length;
                    if (len > MaxHeaderBytes)
                        return false;
    
                    var bytes = new byte[len];
                    Buffer.BlockCopy(_headerBytes, 0, bytes, 0, _headerBytes.Length);
                    Buffer.BlockCopy(headerBytes, 0, bytes, _headerBytes.Length, headerBytes.Length);
                    _headerBytes = bytes;
                }
                else
                {
                    _headerBytes = headerBytes;
                }
    
                // start parsing
                _startHeadersOffset = -1;
                _endHeadersOffset = -1;
                _headerByteStrings = new List<ByteString>();
    
                // find the end of headers
                var parser = new ByteParser(_headerBytes);
    
                for (; ; )
                {
                    ByteString line = parser.ReadLine();
    
                    if (line == null)
                    {
                        break;
                    }
    
                    if (_startHeadersOffset < 0)
                    {
                        _startHeadersOffset = parser.CurrentOffset;
                    }
    
                    if (line.IsEmpty)
                    {
                        _endHeadersOffset = parser.CurrentOffset;
                        break;
                    }
    
                    _headerByteStrings.Add(line);
                }
    
                return true;
            }
    
            private static string UrlEncodeRedirect(string path)
            {
                // this method mimics the logic in HttpResponse.Redirect (which relies on internal methods)
    
                // count non-ascii characters
                byte[] bytes = Encoding.UTF8.GetBytes(path);
                int count = bytes.Length;
                int countNonAscii = 0;
                for (int i = 0; i < count; i++)
                {
                    if ((bytes[i] & 0x80) != 0)
                    {
                        countNonAscii++;
                    }
                }
    
                // encode all non-ascii characters using UTF-8 %XX
                if (countNonAscii > 0)
                {
                    // expand not 'safe' characters into %XX, spaces to +s
                    var expandedBytes = new byte[count + countNonAscii * 2];
                    int pos = 0;
                    for (int i = 0; i < count; i++)
                    {
                        byte b = bytes[i];
    
                        if ((b & 0x80) == 0)
                        {
                            expandedBytes[pos++] = b;
                        }
                        else
                        {
                            expandedBytes[pos++] = (byte)'%';
                            expandedBytes[pos++] = (byte)IntToHex[(b >> 4) & 0xf];
                            expandedBytes[pos++] = (byte)IntToHex[b & 0xf];
                        }
                    }
    
                    path = Encoding.ASCII.GetString(expandedBytes);
                }
    
                // encode spaces into %20
                if (path.IndexOf(' ') >= 0)
                {
                    path = path.Replace(" ", "%20");
                }
    
                return path;
            }
    
            private void ProcessPlugins()
            {
                if (_connection.Plugins != null)
                {
                    foreach (string pluginTypeName in _connection.Plugins)
                    {
                        // #TODO: maybe keep plugins instantiated in the connection with reflected method cached?
    
                        Type pluginType = Type.GetType(pluginTypeName);
                        object plugin = Activator.CreateInstance(pluginType);
                        MethodInfo pluginMethod = plugin.GetType().GetMethod("ProcessRequest");
                        pluginMethod.Invoke(plugin, new object[] { this });
                        
                    }
                }
            }
            #region Nested type: ByteParser
    
            internal class ByteParser
            {
                private readonly byte[] _bytes;
    
                private int _pos;
    
                public ByteParser(byte[] bytes)
                {
                    _bytes = bytes;
                    _pos = 0;
                }
    
                public int CurrentOffset
                {
                    get { return _pos; }
                }
    
                public ByteString ReadLine()
                {
                    ByteString line = null;
    
                    for (int i = _pos; i < _bytes.Length; i++)
                    {
                        if (_bytes[i] == (byte)'\n')
                        {
                            int len = i - _pos;
                            if (len > 0 && _bytes[i - 1] == (byte)'\r')
                            {
                                len--;
                            }
    
                            line = new ByteString(_bytes, _pos, len);
                            _pos = i + 1;
                            return line;
                        }
                    }
    
                    if (_pos < _bytes.Length)
                    {
                        line = new ByteString(_bytes, _pos, _bytes.Length - _pos);
                    }
    
                    _pos = _bytes.Length;
                    return line;
                }
            }
    
            #endregion
    
            #region Nested type: ByteString
    
            internal class ByteString
            {
                private readonly byte[] _bytes;
    
                private readonly int _length;
    
                private readonly int _offset;
    
                public ByteString(byte[] bytes, int offset, int length)
                {
                    _bytes = bytes;
                    _offset = offset;
                    _length = length;
                }
    
                public byte[] Bytes
                {
                    get { return _bytes; }
                }
    
                public bool IsEmpty
                {
                    get { return (_bytes == null || _length == 0); }
                }
    
                public byte this[int index]
                {
                    get { return _bytes[_offset + index]; }
                }
    
                public int Length
                {
                    get { return _length; }
                }
    
                public int Offset
                {
                    get { return _offset; }
                }
    
                public byte[] GetBytes()
                {
                    var bytes = new byte[_length];
                    if (_length > 0) Buffer.BlockCopy(_bytes, _offset, bytes, 0, _length);
                    return bytes;
                }
    
                public string GetString(Encoding enc)
                {
                    if (IsEmpty) return string.Empty;
                    return enc.GetString(_bytes, _offset, _length);
                }
    
                public string GetString()
                {
                    return GetString(Encoding.UTF8);
                }
    
                public int IndexOf(char ch)
                {
                    return IndexOf(ch, 0);
                }
    
                public int IndexOf(char ch, int offset)
                {
                    for (int i = offset; i < _length; i++)
                    {
                        if (this[i] == (byte)ch) return i;
                    }
                    return -1;
                }
    
                public ByteString[] Split(char sep)
                {
                    var list = new List<ByteString>();
    
                    int pos = 0;
                    while (pos < _length)
                    {
                        int i = IndexOf(sep, pos);
                        if (i < 0)
                        {
                            break;
                        }
    
                        list.Add(Substring(pos, i - pos));
                        pos = i + 1;
    
                        while (this[pos] == (byte)sep && pos < _length)
                        {
                            pos++;
                        }
                    }
    
                    if (pos < _length)
                        list.Add(Substring(pos));
    
                    return list.ToArray();
                }
    
                public ByteString Substring(int offset, int len)
                {
                    return new ByteString(_bytes, _offset + offset, len);
                }
    
                public ByteString Substring(int offset)
                {
                    return Substring(offset, _length - offset);
                }
            }
    
            #endregion
        }
    }
    Request
    //  **********************************************************************************
    //  CassiniDev - http://cassinidev.codeplex.com
    // 
    //  Copyright (c) 2010 Sky Sanders. All rights reserved.
    //  
    //  This source code is subject to terms and conditions of the Microsoft Public
    //  License (Ms-PL). A copy of the license can be found in the license.txt file
    //  included in this distribution.
    //  
    //  You must not remove this notice, or any other, from this software.
    //  
    //  **********************************************************************************
    
    #region
    
    using System;
    
    #endregion
    
    namespace SimpleWebServer
    {
        ///<summary>
        ///</summary>
        public class RequestEventArgs : EventArgs
        {
            private readonly Guid _id;
    
            ///<summary>
            ///</summary>
            ///<param name="id"></param>
            ///<param name="requestLog"></param>
            ///<param name="responseLog"></param>
            public RequestEventArgs(Guid id)
            {
                _id = id;
            }
    
            ///<summary>
            ///</summary>
            public Guid Id
            {
                get { return _id; }
            }
    
            
        }
    }
    RequestEventArgs

    代码出自:cassinidev.codeplex.com

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  • 原文地址:https://www.cnblogs.com/zcjiang/p/3555851.html
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