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作者:佚名 来源:aspsky 2007年11月14日
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//////////webserver.cs////////////////// namespace cnnbsun.webserver { using System; using System.IO; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading ; class MyWebServer { private TcpListener myListener ; private int port = 8080 ; // 选者任何闲置端口 //开始兼听端口 //同时启动一个兼听进程 public MyWebServer() { try { //开始兼听端口 myListener = new TcpListener(port) ; myListener.Start(); Console.WriteLine("Web Server Running... Press ^C to Stop..."); //同时启动一个兼听进程 'StartListen' Thread th = new Thread(new ThreadStart(StartListen)); th.Start() ; } catch(Exception e) { Console.WriteLine("兼听端口时发生错误 :" +e.ToString()); } } public void SendHeader(string sHttpVersion, string sMIMEHeader, int iTotBytes, string sStatusCode, ref Socket mySocket) { String sBuffer = ""; if (sMIMEHeader.Length == 0 ) { sMIMEHeader = "text/html"; // 默认 text/html } sBuffer = sBuffer + sHttpVersion + sStatusCode + "\r\n"; sBuffer = sBuffer + "Server: cx1193719-b\r\n"; sBuffer = sBuffer + "Content-Type: " + sMIMEHeader + "\r\n"; sBuffer = sBuffer + "Accept-Ranges: bytes\r\n"; sBuffer = sBuffer + "Content-Length: " + iTotBytes + "\r\n\r\n"; Byte[] bSendData = Encoding.ASCII.GetBytes(sBuffer); SendToBrowser( bSendData, ref mySocket); Console.WriteLine("Total Bytes : " + iTotBytes.ToString()); } public void SendToBrowser(String sData, ref Socket mySocket) { SendToBrowser (Encoding.ASCII.GetBytes(sData), ref mySocket); } public void SendToBrowser(Byte[] bSendData, ref Socket mySocket) { int numBytes = 0; try { if (mySocket.Connected) { if (( numBytes = mySocket.Send(bSendData, bSendData.Length,0)) == -1) Console.WriteLine("Socket Error cannot Send Packet"); else { Console.WriteLine("No. of bytes send {0}" , numBytes); } } else Console.WriteLine("连接失败...."); } catch (Exception e) { Console.WriteLine("发生错误 : {0} ", e ); } } public static void Main() { MyWebServer MWS = new MyWebServer(); } public void StartListen() { int iStartPos = 0; String sRequest; String sDirName; String sRequestedFile; String sErrorMessage; String sLocalDir; /////////////////////////////////////注意设定你自己的虚拟目录///////////////////////////////////// String sMyWebServerRoot = "E:\\MyWebServerRoot\\"; //设置你的虚拟目录 ////////////////////////// String sFormattedMessage = ""; String sResponse = ""; while(true) { //接受新连接 Socket mySocket = myListener.AcceptSocket() ; Console.WriteLine ("Socket Type " +mySocket.SocketType ); if(mySocket.Connected) { Console.WriteLine("\nClient Connected!!\n==================\nCLient IP {0}\n",mySocket.RemoteEndPoint) ; Byte[] bReceive = new Byte[1024] ; int i = mySocket.Receive(bReceive,bReceive.Length,0) ; //转换成字符串类型 string sBuffer = Encoding.ASCII.GetString(bReceive); //只处理"get"请求类型 if (sBuffer.Substring(0,3) != "GET" ) { Console.WriteLine("只处理get请求类型.."); mySocket.Close(); return; } // 查找 "HTTP" 的位置 iStartPos = sBuffer.IndexOf("HTTP",1); string sHttpVersion = sBuffer.Substring(iStartPos,8); // 得到请求类型和文件目录文件名 sRequest = sBuffer.Substring(0,iStartPos - 1); sRequest.Replace("\\","/"); //如果结尾不是文件名也不是以"/"结尾则加"/" if ((sRequest.IndexOf(".") <1) && (!sRequest.EndsWith("/"))) { sRequest = sRequest + "/"; } //得带请求文件名 iStartPos = sRequest.LastIndexOf("/") + 1; sRequestedFile = sRequest.Substring(iStartPos); //得到请求文件目录 sDirName = sRequest.Substring(sRequest.IndexOf("/"), sRequest.LastIndexOf("/")-3); //获取虚拟目录物理路径 sLocalDir = sMyWebServerRoot; Console.WriteLine("请求文件目录 : " + sLocalDir); if (sLocalDir.Length == 0 ) { sErrorMessage = "<H2>Error!! Requested Directory does not exists</H2><Br>"; SendHeader(sHttpVersion, "", sErrorMessage.Length, " 404 Not Found", ref mySocket); SendToBrowser(sErrorMessage, ref mySocket); mySocket.Close(); continue; } if (sRequestedFile.Length == 0 ) { // 取得请求文件名 sRequestedFile = "index.html"; } ///////////////////////////////////////////////////////////////////// // 取得请求文件类型(设定为text/html) ///////////////////////////////////////////////////////////////////// String sMimeType = "text/html"; sPhysicalFilePath = sLocalDir + sRequestedFile; Console.WriteLine("请求文件: " + sPhysicalFilePath); if (File.Exists(sPhysicalFilePath) == false) { sErrorMessage = "<H2>404 Error! File Does Not Exists...</H2>"; SendHeader(sHttpVersion, "", sErrorMessage.Length, " 404 Not Found", ref mySocket); SendToBrowser( sErrorMessage, ref mySocket); Console.WriteLine(sFormattedMessage); } else { int iTotBytes=0; sResponse =""; FileStream fs = new FileStream(sPhysicalFilePath, FileMode.Open, FileAccess.Read, FileShare.Read); BinaryReader reader = new BinaryReader(fs); byte[] bytes = new byte[fs.Length]; int read; while((read = reader.Read(bytes, 0, bytes.Length)) != 0) { sResponse = sResponse + Encoding.ASCII.GetString(bytes,0,read); iTotBytes = iTotBytes + read; } reader.Close(); fs.Close(); SendHeader(sHttpVersion, sMimeType, iTotBytes, " 200 OK", ref mySocket); SendToBrowser(bytes, ref mySocket); //mySocket.Send(bytes, bytes.Length,0); } mySocket.Close(); } } } } } |
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