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Server.cs
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Server.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
namespace KKServer2
{
class Server
{
//zwraca, jak serwer ma odpowiedzieć - czy ciągle, zakresami, czy nie znając długości
public enum TypeOfResponse
{
Normal,
Range
}
public enum MethodType
{
GetPost,
Head,
Options
}
public struct Mimetype
{
public string EndsWith;
public string Type;
}
public struct CgiItemInfo
{
public string CGIpath;
public string EndsWith;
}
public delegate void DelegateModulesConnectionManage(System.Net.Sockets.Socket socket);
public delegate void DelegateModulesRequestManage(System.Net.Sockets.Socket socket, ref string request);
public delegate void DelegateModulesDirectoryDisplay(Socket socket, string address);
private System.Net.Sockets.TcpListener listener;
public int HeaderTimeout = 3000;
public int BodyOfRequestTimeout = 10000;
public string RootAddress = "";
public string ErrorsPagesAddress = "";
public bool ListDirectories = false;
public List<string> NameOfRootDocuments = new List<string>();
public List<Mimetype> Mimetypes = new List<Mimetype>();
public Version Version;
public bool IsCGIhandle = false;
public List<CgiItemInfo> CgiList = new List<CgiItemInfo>();
public bool CreateLogs = false;
public string LogsPath = "";
public int MaxNumberOfCGI = 2;
public bool BrowseDirectories = false;
//uchwyty dla dodatków
public DelegateModulesConnectionManage ModulesConnectionManage=null;
public DelegateModulesRequestManage ModulesRequestManage=null;
public DelegateModulesDirectoryDisplay ModulesDirectoryDisplay = DirectoryShow;
private static string serverName = "KKServer";
private Dictionary<int, string> errorDescriptions = new Dictionary<int, string>();
private int numOfCGIProcesses = 0;
private System.IO.StreamWriter logFile;
public Server(System.Net.IPAddress ipaddress, int port)
{
listener = new System.Net.Sockets.TcpListener(new System.Net.IPEndPoint(ipaddress, port));
errorDescriptions.Add(100, "Continue");
errorDescriptions.Add(101, "Switching Protocols");
errorDescriptions.Add(110, "Connection Timed Out");
errorDescriptions.Add(111, "Connection refused");
errorDescriptions.Add(200, "OK");
errorDescriptions.Add(206, "Partial Content");
errorDescriptions.Add(300, "Multiple Choices");
errorDescriptions.Add(301, "Moved Permanently");
errorDescriptions.Add(302, "Found");
errorDescriptions.Add(303, "See Other");
errorDescriptions.Add(304, "Not Modified");
errorDescriptions.Add(305, "Use Proxy");
errorDescriptions.Add(306, "Switch Proxy");
errorDescriptions.Add(307, "Temporary Redirect");
errorDescriptions.Add(310, "Too Many Redirects");
errorDescriptions.Add(400, "Bad Request");
errorDescriptions.Add(401, "Unauthorized");
errorDescriptions.Add(402, "Payment Required");
errorDescriptions.Add(403, "Forbidden");
errorDescriptions.Add(404, "Not Found");
errorDescriptions.Add(405, "Method Not Allowed");
errorDescriptions.Add(406, "Not Acceptable");
errorDescriptions.Add(407, "Proxy Authentication Required");
errorDescriptions.Add(408, "Request Timeout");
errorDescriptions.Add(409, "Conflict");
errorDescriptions.Add(410, "Gone");
errorDescriptions.Add(411, "Length Required");
errorDescriptions.Add(412, "Precondition Failed");
errorDescriptions.Add(413, "Request Entity Too Large");
errorDescriptions.Add(414, "Request-URI Too Long");
errorDescriptions.Add(415, "Unsupported Media Type");
errorDescriptions.Add(416, "Requested Range Not Satisfiable");
errorDescriptions.Add(417, "Expectation Failed");
errorDescriptions.Add(418, "I'm a teapot");
errorDescriptions.Add(451, "Unavailable For Legal Reasons");
errorDescriptions.Add(500, "Internal Server Error");
errorDescriptions.Add(501, "Not Implemented");
errorDescriptions.Add(502, "Bad Gateway");
errorDescriptions.Add(503, "Service Unavailable");
errorDescriptions.Add(504, "Gateway Timeout");
errorDescriptions.Add(505, "HTTP Version Not Supported");
errorDescriptions.Add(506, "Variant Also Negotiates");
errorDescriptions.Add(509, "Bandwidth Limit Exceeded");
errorDescriptions.Add(510, "Not Extended");
errorDescriptions.Add(511, "Network Authentication Required");
}
public void Start()
{
if (CreateLogs)
{
logFile = new System.IO.StreamWriter(LogsPath, true);
logFile.AutoFlush = true;
}
if (CreateLogs) { logFile.WriteLine("S\t" + DateTime.Now.ToString()); logFile.Flush(); }
listener.Start( int.MaxValue );
if (RootAddress == null || RootAddress == "")
{
throw new ArgumentNullException("rootAddress", "Null value");
}
if (!(new System.IO.DirectoryInfo(RootAddress)).Exists)
{
throw new ArgumentNullException("rootAddress", "Invalid value");
}
listener.BeginAcceptSocket(ConnectionHandler, listener);
}
public void Stop()
{
listener.Stop();
}
private void ConnectionHandler(IAsyncResult result)
{
// System.Windows.Forms.MessageBox.Show("OK");
System.Net.Sockets.Socket socket;
try
{
socket = ((System.Net.Sockets.TcpListener)(result.AsyncState)).EndAcceptSocket(result);
}
catch { socket = null; }
//tworzenie nowego gniazda
listener.BeginAcceptSocket(ConnectionHandler, listener);
try
{
ModulesConnectionManage?.Invoke(socket); //jeśli ustawiony dodatek przechwytujcy gniazdo
//obsługiwanie kodu;
int _bufferSize = 65000;
int _bufPointer = 0;
byte[] buffer = new byte[_bufferSize];
DateTime gettingTime = DateTime.Now;
bool isPacketCompleted = false;
while (true)
{
int _tmp = Math.Min(socket.Available, buffer.Length);
if (_tmp != 0)
{
socket.Receive(buffer, _bufPointer, _bufferSize, SocketFlags.None);
_bufPointer += _tmp;
if (_bufPointer > 3)
{
for (int i = 4; i <= _bufPointer; i++)
{
if (buffer[i - 1] == '\n' && buffer[i - 2] == '\r' && buffer[i - 3] == '\n' && buffer[i - 4] == '\r')
{
isPacketCompleted = true;
goto packetEnd;
}
}
}
}
if ((DateTime.Now - gettingTime).TotalMilliseconds > HeaderTimeout)
{
break;
}
System.Threading.Thread.Sleep(2);
}
packetEnd:
if (isPacketCompleted)
{
string header = System.Text.ASCIIEncoding.ASCII.GetString(buffer, 0, _bufPointer);
ModulesRequestManage?.Invoke(socket, ref header);
string[] @params = header.Split(new char[] { '\r' })[0].Split(new char[] { ' ' }, 4);
if (CreateLogs)
{
try
{
logFile.WriteLine("GetFile\t" + DateTime.Now.ToString() + "\t" + socket.RemoteEndPoint.ToString() + "\t" + socket.LocalEndPoint.ToString() + "\t" + @params[0] + "\t" + @params[1]);
}
catch { }
}
if (@params[2].ToUpper() == "HTTP/1.1")
{
if (@params[0].ToUpper() == "GET")
{
MethodGET(socket, header,MethodType.GetPost);
}
else if (@params[0].ToUpper() == "OPTIONS")
{
MethodGET(socket, header, MethodType.Options);
}
else if (@params[0].ToUpper() == "HEAD")
{
MethodGET(socket, header, MethodType.Head);
}
else if (@params[0].ToUpper() == "POST")
{
MethodPOST(socket, header, ref buffer, _bufPointer);
}
else
{
ErrorWrite(501, socket);
//TODO: unsupported method
}
//tutaj możliwe pobieranie treści
//System.Windows.Forms.MessageBox.Show(header);
}
else
{
//version of protocol not supported
ErrorWrite(505, socket);
}
}
else
{
//header is not completed
ErrorWrite(408, socket);
// Console.WriteLine((DateTime.Now - gettingTime).TotalMilliseconds);
}
}
catch
{
}
}
private bool FileExists(ref string address, ref string[] methodparam, Socket socket)
{
address = PrepareAddress(methodparam[1].Split('?')[0].Split(new char[] { '/' }), methodparam);
bool czyznaleziono = false;
if ((new System.IO.FileInfo(RootAddress + address)).Exists)
{
czyznaleziono = true;
}
else
{
foreach (var item in NameOfRootDocuments)
{
if ((new System.IO.FileInfo(RootAddress + address + item)).Exists)
{
czyznaleziono = true;
address += item;
break;
}
}
if (!czyznaleziono)
{
if(BrowseDirectories && (new System.IO.DirectoryInfo(RootAddress + address)).Exists)
{
ModulesDirectoryDisplay?.Invoke(socket, RootAddress + address);
socket.Close();
}
}
if (!czyznaleziono)
{
ErrorWrite(404, socket);
return false;
}
}
return czyznaleziono;
}
private bool IsParsedByCGI(string address, ref int parseCGIi)
{
for (int i = 0; i < CgiList.Count; i++)
{
if (address.EndsWith(CgiList[i].EndsWith))
{
parseCGIi = i;
return true;
}
}
return false;
}
private void MethodPOST(System.Net.Sockets.Socket socket, string header, ref byte[] bufferWithStartMessage, int bufferStartSize)
{
string[] headers = header.Split(new char[] { '\n' });
string[] methodparam = headers[0].Split(new char[] { ' ' });
//parsowanie adresu
string address = "";
try
{
bool czyznaleziono = FileExists(ref address, ref methodparam, socket);
if (czyznaleziono)
{
//plik znaleziony. adres : rootAddress+address
//czy plik parsowany przez CGI?
int parseCGIi = 0;
bool parseCGI = IsParsedByCGI(address, ref parseCGIi);
if (!parseCGI)
{
//czy normalnie czy przedziałami?
TypeOfResponse type = TypeOfResponse.Normal;
string rangeHeader = "";
for (int i = 1; i < headers.Length; i++)
{
if (headers[i].StartsWith("Range: "))
{
type = TypeOfResponse.Range;
rangeHeader = headers[i];
}
}
if (type == TypeOfResponse.Normal)
{
ResponseNormal(socket, RootAddress + address,MethodType.GetPost );
}
else
{
ResponseRanges(socket, RootAddress + address, rangeHeader);
}
}
else
{
//trzeba parsowac cgi...
if (numOfCGIProcesses <= MaxNumberOfCGI)
{
numOfCGIProcesses++;
// Console.WriteLine(numOfCGIProcesses);
try
{
ResponseCGI(socket, RootAddress + address, header, CgiList[parseCGIi], ref bufferWithStartMessage, bufferStartSize);
}
catch { }
numOfCGIProcesses--;
}
else
{
ErrorWrite(503, socket);
}
}
}
//System.Windows.Forms.MessageBox.Show(rootAddress+ address);
}
catch (ArgumentException)
{
//nieprawidłowa ścieżka
ErrorWrite(404, socket);
}
catch (Exception)
{
//błąd połączenia
}
}
private void MethodGET(System.Net.Sockets.Socket socket, string header, MethodType methodType)
{
string[] headers = header.Split(new char[] { '\n' });
string[] methodparam = headers[0].Split(new char[] { ' ' });
//parsowanie adresu
string address = "";
try
{
bool czyznaleziono = FileExists(ref address, ref methodparam, socket);
if (czyznaleziono)
{
//plik znaleziony. adres : rootAddress+address
//czy plik parsowany przez CGI?
int parseCGIi = 0;
bool parseCGI = IsParsedByCGI(address, ref parseCGIi);
if (!parseCGI)
{
//czy normalnie czy przedziałami?
TypeOfResponse type = TypeOfResponse.Normal;
string rangeHeader = "";
for (int i = 1; i < headers.Length; i++)
{
if (headers[i].StartsWith("Range: "))
{
type = TypeOfResponse.Range;
rangeHeader = headers[i];
}
}
if (type == TypeOfResponse.Normal)
{
ResponseNormal(socket, RootAddress + address,methodType );
}
else
{
ResponseRanges(socket, RootAddress + address, rangeHeader);
}
}
else
{
//trzeba parsowac cgi...
byte[] tmp = new byte[0];
if (numOfCGIProcesses <= MaxNumberOfCGI)
{
numOfCGIProcesses++;
// Console.WriteLine(numOfCGIProcesses);
try
{
ResponseCGI(socket, RootAddress + address, header, CgiList[parseCGIi], ref tmp);
}
catch { }
numOfCGIProcesses--;
}else
{
ErrorWrite(503, socket);
}
}
}
//System.Windows.Forms.MessageBox.Show(rootAddress+ address);
}
catch (ArgumentException)
{
//nieprawidłowa ścieżka
ErrorWrite(404, socket);
}
catch (Exception)
{
//błąd połączenia
}
}
private string PrepareAddress(string[] adrParts, string[] methodparam)
{
string address = "";
for (int i = 0; i < adrParts.Length; i++)
{
if (adrParts[i] == "")
{
//nic
}
else if (adrParts[i] == "..")
{
//katalog w górę
int offset = address.LastIndexOf('/');
if (offset == -1)
{
throw new ArgumentException();
}
else
{
address = address.Substring(0, offset);
}
}
else
{
address += "/" + adrParts[i];
}
}
if (methodparam[1].Split('?')[0].EndsWith("/"))
{
address += "/";
}
return address;
}
// przez CGI
private void ResponseCGI(Socket socket, string address, string header, CgiItemInfo CGIinfo, ref byte[] sentData, int sentDataSize = 0)
{
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName = CGIinfo.CGIpath;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.EnvironmentVariables.Add("REMOTE_ADDR", socket.RemoteEndPoint.ToString());
proc.StartInfo.EnvironmentVariables.Add("SCRIPT_FILENAME", address);
uint sentDataLength = 0;
string[] par = header.Split('\n');
string[] requestpar = header.Split(new char[] { ' ' }, 4);
for (int i = 1; i < par.Length - 1; i++)
{
string[] h = par[i].Trim().Split(new char[] { ':' }, 2);
if (h.Length == 1) { break; }
if (h[0] == "User-Agent")
{
proc.StartInfo.EnvironmentVariables.Add("USER_AGENT", h[1].Trim());
}
else if (h[0] == "Referer")
{
proc.StartInfo.EnvironmentVariables.Add("REFERER", h[1].Trim());
}
else if (h[0] == "Content-Length")
{
proc.StartInfo.EnvironmentVariables.Add("CONTENT_LENGTH", h[1].Trim());
sentDataLength = uint.Parse(h[1].Trim());
}
else if (h[0] == "Content-Type")
{
proc.StartInfo.EnvironmentVariables.Add("CONTENT_TYPE", h[1].Trim());
}
else if (h[0] == "Cookie")
{
proc.StartInfo.EnvironmentVariables.Add("HTTP_COOKIE", h[1].Trim());
}
}
proc.StartInfo.EnvironmentVariables.Add("REQUEST_METHOD", requestpar[0]);
//
proc.StartInfo.EnvironmentVariables.Add("SERVER_PROTOCOL", "HTTP/1.1");
if (requestpar[1].IndexOf('?') >= 0)
{
proc.StartInfo.EnvironmentVariables.Add("QUERY_STRING", requestpar[1].Substring(requestpar[1].IndexOf('?') + 1));
}
else
{
proc.StartInfo.EnvironmentVariables.Add("QUERY_STRING", "");
}
proc.StartInfo.EnvironmentVariables.Add("SERVER_SOFTWARE", serverName + "/" + Version.ToString());
proc.StartInfo.EnvironmentVariables.Add("GATEWAY_INTERFACE", "CGI/1.1");
proc.StartInfo.EnvironmentVariables.Add("REDIRECT_STATUS", "1");
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardInput = true;
proc.StartInfo.CreateNoWindow = true;
proc.Start();
System.IO.StreamReader reader = proc.StandardOutput;
System.IO.StreamWriter writer = proc.StandardInput;
//wysyłanie danych z post (jeśli są)
if (sentData.Length > 3)
{
//szukanie treści
int endPos = 3;
for (; endPos <= sentDataSize; endPos++)
{
if (sentData[endPos - 1] == '\n' && sentData[endPos - 2] == '\r' && sentData[endPos - 3] == '\n' && sentData[endPos - 4] == '\r')
{
break;
}
}
writer.BaseStream.Write(sentData, endPos, sentDataSize - endPos);
writer.BaseStream.Flush();
//reszta danych z post
uint howManyBytesGet = (uint)sentDataSize - (uint)endPos;
if (sentDataLength > howManyBytesGet)
{
byte[] buffer2 = new byte[60000];
int buffersize = 0;
DateTime gettingTime = DateTime.Now;
while (sentDataLength > howManyBytesGet)
{
if (socket.Available > 0)
{
buffersize = Math.Min(socket.Available, buffer2.Length);
socket.Receive(buffer2, buffersize, SocketFlags.None);
howManyBytesGet += (uint)buffersize;
writer.BaseStream.Write(buffer2, 0, buffersize);
}
if ((DateTime.Now - gettingTime).TotalMilliseconds > BodyOfRequestTimeout)
{
proc.Kill();
ErrorWrite(408, socket);
return;
}
}
writer.BaseStream.Flush();
}
}
writer.BaseStream.Close();
//pobieranie odpowiedzi cgi
//bufor naglowka żądania
byte[] bufferreq = new byte[60000];
int bufferpos = 0;
bool isHeaderMake = false;
bool isHeaderSent = false;
while (true)
{
while (true && !isHeaderMake)
{
bufferreq[bufferpos] = (byte)reader.BaseStream.ReadByte();
bufferpos++;
if (bufferpos >= 4)
{
if (bufferreq[bufferpos - 1] == '\n' && bufferreq[bufferpos - 2] == '\r' && bufferreq[bufferpos - 3] == '\n' && bufferreq[bufferpos - 4] == '\r')
{
isHeaderMake = true;
break;
}
}
}
if (isHeaderMake && !isHeaderSent)
{
string newHeader = System.Text.ASCIIEncoding.ASCII.GetString(bufferreq, 0, bufferpos);
newHeader = "Server: " + serverName + "/" + Version.ToString() + "\r\n" + newHeader;
newHeader = "Transfer-Encoding: chunked\r\n" + newHeader;
newHeader = "Connection: close\r\n" + newHeader;
string[] getHeaders = newHeader.Split('\n');
string status = "";
for (int q = 0; q < getHeaders.Length; q++)
{
if (getHeaders[q].StartsWith("Status:"))
{
status = getHeaders[q].Split(new char[] { ':' }, 2)[1].Trim();
}
}
if (status == "")
{
newHeader = "HTTP/1.1 200 OK\r\n" + newHeader; //status
}
else
{
newHeader = "HTTP/1.1 " + status + "\r\n" + newHeader; //status
}
// System.Windows.Forms.MessageBox.Show(newHeader);
socket.Send(ASCIIEncoding.ASCII.GetBytes(newHeader));
isHeaderSent = true;
}
if (isHeaderMake && isHeaderSent)
{
bufferpos = 0;
while (bufferpos < 1024)
{
int val = reader.BaseStream.ReadByte();
if (val == -1)
{
break;
}
bufferreq[bufferpos] = (byte)val;
bufferpos++;
}
socket.Send(ASCIIEncoding.ASCII.GetBytes(Convert.ToString(bufferpos, 16) + "\r\n"));
socket.Send(bufferreq, 0, bufferpos, SocketFlags.None);
socket.Send(ASCIIEncoding.ASCII.GetBytes("\r\n"));
if (bufferpos != 1024)
{
break;
}
// System.Windows.Forms.MessageBox.Show("ok");
}
//System.Windows.Forms.MessageBox.Show(reader.ReadToEnd());
System.Threading.Thread.Sleep(1);
}
socket.Send(ASCIIEncoding.ASCII.GetBytes("0\r\n\r\n"));
}
//normalny transfer
private void ResponseNormal(System.Net.Sockets.Socket socket, string address, MethodType methodType)
{
if(methodType== MethodType.Options)
{
string response = CreateHeader(200,0, false);
response += "Allow: GET,HEAD,POST,OPTIONS\r\n";
response += "\r\n";
socket.Send(System.Text.ASCIIEncoding.ASCII.GetBytes(response));
socket.Close();
}
else
{
System.IO.FileInfo file = new System.IO.FileInfo(address);
string response = CreateHeader(200, (int)file.Length, false);
// response += "Content-Length: " + file.Length + "\r\n";
response += "Accept-Ranges: bytes\r\n";
for (int i = 0; i < Mimetypes.Count; i++)
{
if (address.EndsWith(Mimetypes[i].EndsWith))
{
response += "Content-Type: " + Mimetypes[i].Type + "\r\n";
break;
}
}
response += "\r\n";
System.IO.StreamReader reader = new System.IO.StreamReader(address);
socket.Send(System.Text.ASCIIEncoding.ASCII.GetBytes(response));
byte[] buffer = new byte[1024];
int bufferPos = 0;
int bufferSize = 1024;
while (bufferSize == 1024)
{
bufferSize = Math.Min((int)reader.BaseStream.Length - bufferPos, 1024);
reader.BaseStream.Read(buffer, 0, bufferSize);
socket.Send(buffer, bufferSize, SocketFlags.Partial);
bufferPos += 1024;
}
reader.Close();
}
}
private void ResponseRanges(System.Net.Sockets.Socket socket, string address, string rangeHeader)
{
System.IO.FileInfo file = new System.IO.FileInfo(address);
UInt64 startRange = 0;
UInt64 endRange = 0;
if (rangeHeader.Replace("Range: ", "").StartsWith("bytes="))
{
string[] parts = rangeHeader.Replace("Range: ", "").Replace("\r", "").Substring(6).Split('-');
if (parts[0] != "")
{
startRange = UInt64.Parse(parts[0]);
}
if (parts[1] != "")
{
endRange = UInt64.Parse(parts[1]);
}
}
int rangeSize = (int)((endRange == 0 ? (ulong)file.Length - 1 : endRange) - startRange);
string response = CreateHeader(206, (rangeSize), false);
response += "Accept-Ranges: bytes\r\n";
response += "Content-Range: bytes " + startRange.ToString() + "-" + ((endRange == 0 ? (ulong)file.Length - 1 : endRange)).ToString() + "/" + file.Length.ToString() + "\r\n";
for (int i = 0; i < Mimetypes.Count; i++)
{
if (address.EndsWith(Mimetypes[i].EndsWith))
{
response += "Content-Type: " + Mimetypes[i].Type + "\r\n";
break;
}
}
response += "\r\n";
System.IO.StreamReader reader = new System.IO.StreamReader(address);
reader.BaseStream.Seek((long)startRange, System.IO.SeekOrigin.Begin);
socket.Send(System.Text.ASCIIEncoding.ASCII.GetBytes(response));
byte[] buffer = new byte[1024];
int bufferPos = 0;
int bufferSize = 1024;
while (bufferSize == 1024)
{
bufferSize = Math.Min(Math.Min((int)(reader.BaseStream.Length - (long)startRange) - bufferPos, rangeSize - bufferPos), 1024);
reader.BaseStream.Read(buffer, 0, bufferSize);
socket.Send(buffer, bufferSize, SocketFlags.Partial);
bufferPos += 1024;
rangeSize -= 1024;
}
reader.Close();
}
private void ErrorWrite(int number, System.Net.Sockets.Socket socket)
{
try
{
byte[] errorpage;
//czy instnieje strona błędu
string[] pages = System.IO.Directory.GetFiles(ErrorsPagesAddress, number + ".*");
if (pages.Length > 0)
{
System.IO.StreamReader read = new System.IO.StreamReader(pages[0]);
errorpage = new byte[read.BaseStream.Length];
read.BaseStream.Read(errorpage, 0, errorpage.Length);
read.Close();
}
else
{
errorpage = System.Text.ASCIIEncoding.ASCII.GetBytes("<h1>" + number.ToString() + "</h1><h2>" + errorDescriptions[number] + "</h2>");
}
string response = CreateHeader(number, errorpage.Length,true);
socket.Send(System.Text.ASCIIEncoding.ASCII.GetBytes(response));
socket.Send(errorpage);
socket.Close();
}
catch
{
}
}
public string CreateHeader(int responseCode, int contentLength, bool isHeaderEnded)
{
string res = "";
res = "HTTP/1.1 " + responseCode.ToString() + " " + errorDescriptions[responseCode] + "\r\n";
DateTime date = DateTime.Now.ToUniversalTime();
res += "Date: " + date.ToString("R") + "\r\n";
res += "Server: " + serverName + "/" + Version.ToString() + "\r\n";
res += "Connection: close" + "\r\n";
res += "Content-Length: " + contentLength.ToString()+ "\r\n" ;
if (isHeaderEnded) {
res += "\r\n";
}
return res;
}
public static void DirectoryShow(Socket socket, string address)
{
string result = "";
result += "<!DOCTYPE html><html><head><title>Browse directory</title></head><body>";
result += "<table>";
result += "<tr><td><a href=\".\">.</a></td></tr>";
result += "<tr><td><a href=\"..\">..</a></td></tr>";
var directory = (new System.IO.DirectoryInfo(address));
var directories = directory.EnumerateDirectories();
foreach( var elem in directories)
{
result += "<tr><td><a href=\"./"+elem.Name+"/\">"+elem.Name+"</a></td></tr>";
}
var files = directory.EnumerateFiles();
foreach (var elem in files)
{
result += "<tr><td><a href=\"./" + elem.Name + "\">" + elem.Name + "</a></td></tr>";
}
result += "</table></body></html>";
int size = result.Length;
result = "\r\n" + result;
result = "Content-Type: text/html\r\n"+result;
result = "Content-Length: " + size.ToString() +"\r\n"+ result;
result = "Connection: close\r\n" + result;
result = "HTTP/1.1 200 OK\r\n" + result;
socket.Send(ASCIIEncoding.ASCII.GetBytes(result));
socket.Close();
}
}
}