private static void DoHttpProcessing(TcpClient client)
{
Stream clientStream = client.GetStream();
Stream outStream = clientStream; //use this stream for writing out - may change if we use ssl
SslStream sslStream = null;
StreamReader clientStreamReader = new StreamReader(clientStream);
CacheEntry cacheEntry = null;
MemoryStream cacheStream = null;
if (Server.DumpHeaders || Server.DumpPostData || Server.DumpResponseData)
{
//make sure that things print out in order - NOTE: this is bad for performance
Monitor.TryEnter(_outputLockObj, TimeSpan.FromMilliseconds(-1.0));
}
try
{
//read the first line HTTP command
String httpCmd = clientStreamReader.ReadLine();
if (String.IsNullOrEmpty(httpCmd))
{
clientStreamReader.Close();
clientStream.Close();
return;
}
//break up the line into three components
String[] splitBuffer = httpCmd.Split(spaceSplit, 3);
String method = splitBuffer[0];
String remoteUri = splitBuffer[1];
Version version = new Version(1, 0);
HttpWebRequest webReq;
HttpWebResponse response = null;
if (splitBuffer[0].ToUpper() == "CONNECT")
{
//Browser wants to create a secure tunnel
//instead = we are going to perform a man in the middle "attack"
//the user's browser should warn them of the certification errors however.
//Please note: THIS IS ONLY FOR TESTING PURPOSES - you are responsible for the use of this code
remoteUri = "https://" + splitBuffer[1];
while (!String.IsNullOrEmpty(clientStreamReader.ReadLine())) ;
StreamWriter connectStreamWriter = new StreamWriter(clientStream);
connectStreamWriter.WriteLine("HTTP/1.0 200 Connection established");
connectStreamWriter.WriteLine(String.Format("Timestamp: {0}", DateTime.Now.ToString()));
connectStreamWriter.WriteLine("Proxy-agent: tb-proxy");
connectStreamWriter.WriteLine();
connectStreamWriter.Flush();
sslStream = new SslStream(clientStream, false);
try
{
sslStream.AuthenticateAsServer(_certificate, false, SslProtocols.Tls | SslProtocols.Ssl3 | SslProtocols.Ssl2, true);
}
catch (Exception)
{
sslStream.Close();
clientStreamReader.Close();
connectStreamWriter.Close();
clientStream.Close();
return;
}
//HTTPS server created - we can now decrypt the client's traffic
clientStream = sslStream;
clientStreamReader = new StreamReader(sslStream);
outStream = sslStream;
//read the new http command.
httpCmd = clientStreamReader.ReadLine();
if (String.IsNullOrEmpty(httpCmd))
{
clientStreamReader.Close();
clientStream.Close();
sslStream.Close();
return;
}
splitBuffer = httpCmd.Split(spaceSplit, 3);
method = splitBuffer[0];
remoteUri = remoteUri + splitBuffer[1];
}
//construct the web request that we are going to issue on behalf of the client.
webReq = (HttpWebRequest)HttpWebRequest.Create(remoteUri);
webReq.Method = method;
webReq.ProtocolVersion = version;
//read the request headers from the client and copy them to our request
int contentLen = ReadRequestHeaders(clientStreamReader, webReq);
webReq.Proxy = null;
webReq.KeepAlive = false;
webReq.AllowAutoRedirect = true;
webReq.ProtocolVersion = HttpVersion.Version10;
webReq.AutomaticDecompression = DecompressionMethods.None;
if(Server.DumpHeaders)
{
Console.WriteLine(String.Format("{0} {1} HTTP/{2}",webReq.Method,webReq.RequestUri.AbsoluteUri, webReq.ProtocolVersion));
DumpHeaderCollectionToConsole(webReq.Headers);
}
//using the completed request, check our cache
if (method.ToUpper() == "GET")
cacheEntry = ProxyCache.GetData(webReq);
else if (method.ToUpper() == "POST")
{
char[] postBuffer = new char[contentLen];
int bytesRead;
int totalBytesRead = 0;
StreamWriter sw = new StreamWriter(webReq.GetRequestStream());
while (totalBytesRead < contentLen && (bytesRead = clientStreamReader.ReadBlock(postBuffer, 0, contentLen)) > 0)
{
totalBytesRead += bytesRead;
sw.Write(postBuffer, 0, bytesRead);
if (ProxyServer.Server.DumpPostData)
Console.Write(postBuffer, 0, bytesRead);
}
if (Server.DumpPostData)
{
Console.WriteLine();
Console.WriteLine();
}
sw.Close();
}
if (cacheEntry == null)
{
//Console.WriteLine(String.Format("ThreadID: {2} Requesting {0} on behalf of client {1}", webReq.RequestUri, client.Client.RemoteEndPoint.ToString(), Thread.CurrentThread.ManagedThreadId));
webReq.Timeout = 15000;
try
{
response = (HttpWebResponse)webReq.GetResponse();
}
catch (WebException webEx)
{
response = webEx.Response as HttpWebResponse;
}
if (response != null)
{
// If TB Streamtags are requested
bool isTB = false;
string contentStr = "";
if (webReq.RequestUri.OriginalString.Contains("ChannelID=884") && webReq.RequestUri.OriginalString.Contains("Channel=TechnoBase"))
{
isTB = true; // yep
Console.WriteLine("[" + DateTime.Now.ToString("HH:mm:ss") + "] TechnoBase StreamTags requested"); // report to user
Random rnd = new Random(DateTime.Now.Millisecond);
TBParser tbp = new TBParser();
List<Track> trackList = tbp.getTracks();
string currentTimeStr = DateTime.Now.ToString("dd.MM.yyyy HH:mm:ss.fff");
StringBuilder sb = new StringBuilder(); // Build StreamTag Response
sb.Append("count=" + trackList.Count);
sb.Append("<br>");
sb.Append("vintern=1452");
sb.Append("<br>");
sb.Append("clistvintern=2160");
sb.Append("<br>");
sb.Append("time-ref=" + currentTimeStr);
sb.Append("<br>");
sb.Append("offset=01.01.1900 00:00:00");
sb.Append("<br>");
sb.Append("serverTime=" + currentTimeStr);
sb.Append("<br>");
sb.Append("FSListVIntern=100");
sb.Append("<br>");
sb.Append("ChargedListVIntern=103");
sb.Append("<br>");
sb.Append("rankingvintern=0");
sb.Append("<br>");
sb.Append("ResCode=0");
sb.Append("<br>");
sb.Append("ComTimeStamp=0");
sb.Append("<br>");
sb.Append("PeerFlag=0");
sb.Append("<br>");
foreach (Track trk in trackList)
{
if (trk.ID > 0)
{
string songMD5 = GetMD5Hash(trk.ToString()); // Generate unique Track ID
string songID9 = songMD5.Substring(0, 9);
string songID6 = songMD5.Substring(0, 6);
string songID4 = songMD5.Substring(0, 4);
sb.Append("49127-12110 ");
sb.Append(DateTime.Now.ToString("dd.MM.yyyy") + " "); // To be fixed (Incorrect date, might cause problems at 23:59 - 00:00)
sb.Append(trk.TimeStart.ToString("HH:mm:ss.fff") + " "); // Time Start
sb.Append(DateTime.Now.ToString("dd.MM.yyyy") + " "); // To be fixed (Incorrect date, might cause problems at 23:59 - 00:00)
sb.Append(trk.TimeEnd.ToString("HH:mm:ss.fff") + " "); // Time End
sb.Append("\"" + trk.Title + "\" "); // Title
sb.Append("8 "); // 8 seems to work...
sb.Append(songID9 + " "); // Song ID
sb.Append("\"" + trk.Artist + "\" "); // Artist
sb.Append("\"\" "); // Album
sb.Append("\"\" "); // URL
sb.Append("\"0\" "); // ?
sb.Append("\"2000\" "); // Year
sb.Append("\"\" "); // ?
sb.Append("\"\" "); // ?
sb.Append("\"\" "); // Shop URL
sb.Append("5 "); // ?
sb.Append(songID6 + " "); // Song ID
sb.Append(songID4 + " "); // Song ID
sb.Append("0 ");
sb.Append("0 ");
sb.Append("\"" + trk.CoverURL + "\" "); // Cover Image URL
sb.Append(songID9 + " "); // Song ID
sb.Append("<br>");
// Example Response:
// 49127-12110 01.11.2012 17:24:33.393 01.11.2012 17:29:34.307 "Everything" 5 331039793 "Safri Duo" "Episode II" "http://www.safriduo.dk/" "151" "2001" "" "http://www.amazon.de/Episode-II-Safri-Duo/dp/B00005KKA5/ref=sr_1_2?ie=UTF8&s=music&qid=1216825657&sr=8-2" "http://www.amazon.de/Episode-II-Safri-Duo/dp/B00005KKA5/ref=sr_1_2?ie=UTF8&s=music&qid=1216825657&sr=8-2" 4 1083354 5870,5 0 0 "http://ecx.images-amazon.com/images/I/41W4SZVXERL._SX240_.jpg" "112545908757223"
}
}
contentStr = sb.ToString();
}
List<Tuple<String, String>> responseHeaders = ProcessResponse(response, contentStr.Length);
StreamWriter myResponseWriter = new StreamWriter(outStream);
Stream responseStream = response.GetResponseStream();
try
{
//send the response status and response headers
WriteResponseStatus(response.StatusCode, response.StatusDescription, myResponseWriter);
WriteResponseHeaders(myResponseWriter, responseHeaders);
DateTime? expires = null;
CacheEntry entry = null;
Boolean canCache = (sslStream == null && ProxyCache.CanCache(response.Headers, ref expires));
if (canCache)
{
entry = ProxyCache.MakeEntry(webReq, response,responseHeaders, expires);
if (response.ContentLength > 0)
cacheStream = new MemoryStream(entry.ResponseBytes);
}
Byte[] buffer;
if (isTB)
{
buffer = Encoding.Convert(Encoding.UTF8, Encoding.GetEncoding("iso-8859-1"), Encoding.UTF8.GetBytes(contentStr));
}
else
{
if (response.ContentLength > 0)
buffer = new Byte[response.ContentLength];
else
buffer = new Byte[BUFFER_SIZE];
}
int bytesRead;
if (isTB)
{
//myResponseWriter.WriteLine(contentStr);
outStream.Write(buffer, 0, buffer.Length);
}
else{
while ((bytesRead = responseStream.Read(buffer, 0, buffer.Length)) > 0)
{
if (cacheStream != null)
cacheStream.Write(buffer, 0, bytesRead);
outStream.Write(buffer, 0, bytesRead);
//Console.WriteLine(bytesRead);
if (Server.DumpResponseData)
Console.Write(UTF8Encoding.UTF8.GetString(buffer, 0, bytesRead));
}
}
if (Server.DumpResponseData)
{
Console.WriteLine();
Console.WriteLine();
}
responseStream.Close();
if (cacheStream != null)
{
cacheStream.Flush();
cacheStream.Close();
}
outStream.Flush();
if (canCache)
ProxyCache.AddData(entry);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
responseStream.Close();
response.Close();
myResponseWriter.Close();
}
}
}
else
{
//serve from cache
StreamWriter myResponseWriter = new StreamWriter(outStream);
try
{
WriteResponseStatus(cacheEntry.StatusCode, cacheEntry.StatusDescription, myResponseWriter);
WriteResponseHeaders(myResponseWriter, cacheEntry.Headers);
if (cacheEntry.ResponseBytes != null)
{
outStream.Write(cacheEntry.ResponseBytes, 0, cacheEntry.ResponseBytes.Length);
if (ProxyServer.Server.DumpResponseData)
Console.Write(UTF8Encoding.UTF8.GetString(cacheEntry.ResponseBytes));
}
myResponseWriter.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
myResponseWriter.Close();
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (Server.DumpHeaders || Server.DumpPostData || Server.DumpResponseData)
{
//release the lock
Monitor.Exit(_outputLockObj);
}
clientStreamReader.Close();
clientStream.Close();
if (sslStream != null)
sslStream.Close();
outStream.Close();
if (cacheStream != null)
cacheStream.Close();
}
}
public void ThreadHandleClient(object o)
{
try
{
Socket client = (Socket)o;
Debug.Print("lingerstate=" + client.LingerState.Enabled.ToString() + " timeout=" + client.LingerState.LingerTime.ToString());
NetworkStream ns = new NetworkStream(client);
//RECEIVE CLIENT DATA
byte[] buffer = new byte[2048];
int rec = 0, sent = 0, transferred = 0, rport = 0;
string data = "";
do
{
rec = ns.Read(buffer, 0, buffer.Length);
data += Encoding.ASCII.GetString(buffer, 0, rec);
} while (rec == buffer.Length);
//PARSE DESTINATION AND SEND REQUEST
string line = data.Replace("\r\n", "\n").Split(new string[] { "\n" }, StringSplitOptions.None)[0];
Uri uri = new Uri(line.Split(new string[] { " " }, StringSplitOptions.None)[1]);
Debug.Print("CLIENT REQUEST RECEIVED: " + uri.OriginalString);
if (uri.Scheme == "https")
{
rport = 443;
Debug.Print("HTTPS - 443");
}
else
{
rport = 80;
Debug.Print("HTTP - 443");
}
string tbResponse = "";
if (uri.OriginalString.Contains("ChannelID=884") && uri.OriginalString.Contains("Channel=TechnoBase"))
{
isTechnobase = true;
Random rnd = new Random(DateTime.Now.Millisecond);
TBParser tbp = new TBParser();
List<Track> trackList = tbp.getTracks();
string currentTimeStr = DateTime.Now.ToString("dd.MM.yyyy HH:mm:ss.fff");
StringBuilder sb = new StringBuilder();
sb.Append("count=" + trackList.Count);
sb.Append("<br>");
sb.Append("vintern=1452");
sb.Append("<br>");
sb.Append("clistvintern=2160");
sb.Append("<br>");
sb.Append("time-ref=" + currentTimeStr);
sb.Append("<br>");
sb.Append("offset=01.01.1900 00:00:00");
sb.Append("<br>");
sb.Append("serverTime=" + currentTimeStr);
sb.Append("<br>");
sb.Append("FSListVIntern=100");
sb.Append("<br>");
sb.Append("ChargedListVIntern=103");
sb.Append("<br>");
sb.Append("rankingvintern=0");
sb.Append("<br>");
sb.Append("ResCode=0");
sb.Append("<br>");
sb.Append("ComTimeStamp=0");
sb.Append("<br>");
sb.Append("PeerFlag=0");
sb.Append("<br>");
foreach (Track trk in trackList)
{
if (trk.ID > 0)
{
sb.Append("49127-12110 ");
sb.Append(DateTime.Now.ToString("dd.MM.yyyy") + " "); // To be fixed (Incorrect date)
sb.Append(trk.TimeStart.ToString("HH:mm:ss.fff") + " "); // Time Start
sb.Append(DateTime.Now.ToString("dd.MM.yyyy") + " "); // To be fixed (Incorrect date)
sb.Append(trk.TimeEnd.ToString("HH:mm:ss.fff") + " "); // Time End
sb.Append("\"" + trk.Title + "\" "); // Title
sb.Append(rnd.Next(1, 10) + " "); // ?
sb.Append(rnd.Next(100000000, 999999999) + " "); // ?
sb.Append("\"" + trk.Artist + "\" "); // Artist
sb.Append("\"\" "); // Album
sb.Append("\"\" "); // URL
sb.Append("\"0\" "); // ?
sb.Append("\"2000\" "); // Year
sb.Append("\"\" "); // ?
sb.Append("\"\" "); // ?
sb.Append("\"\" "); // Shop URL
sb.Append(rnd.Next(1, 10) + " ");
sb.Append(rnd.Next(100000, 999999) + " ");
sb.Append(rnd.Next(1000, 9999) + " ");
sb.Append("0 ");
sb.Append("0 ");
sb.Append("\"" + trk.CoverURL + "\" "); // Cover Image URL
sb.Append("\"" + rnd.Next(100000000, 999999999) + "\""); //195048320234
sb.Append("<br>");
//49127-12110 01.11.2012 17:24:33.393 01.11.2012 17:29:34.307 "Everything" 5 331039793 "Safri Duo" "Episode II" "http://www.safriduo.dk/" "151" "2001" "" "http://www.amazon.de/Episode-II-Safri-Duo/dp/B00005KKA5/ref=sr_1_2?ie=UTF8&s=music&qid=1216825657&sr=8-2" "http://www.amazon.de/Episode-II-Safri-Duo/dp/B00005KKA5/ref=sr_1_2?ie=UTF8&s=music&qid=1216825657&sr=8-2" 4 1083354 5870,5 0 0 "http://ecx.images-amazon.com/images/I/41W4SZVXERL._SX240_.jpg" "112545908757223"
}
}
string contentStr = sb.ToString();
StringBuilder hsb = new StringBuilder();
hsb.AppendLine("HTTP/1.1 200 OK");
hsb.AppendLine("Cache-Control: private");
hsb.AppendLine("Content-Type: text/html; charset=Windows-1252");
hsb.AppendLine("Server: Microsoft-IIS/7.5");
hsb.AppendLine("X-AspNet-Version: 4.0.30319");
hsb.AppendLine("X-Powered-By: ASP.NET");
hsb.AppendLine("Date: Thu, 01 Nov 2012 20:11:43 GMT");
hsb.AppendLine("Content-Length: " + contentStr.Length);
hsb.AppendLine("");
hsb.AppendLine(contentStr);
tbResponse = hsb.ToString();
Debug.WriteLine(tbResponse);
}
IPHostEntry rh = Dns.GetHostEntry(uri.Host);
Socket webserver = new Socket(rh.AddressList[0].AddressFamily, SocketType.Stream, ProtocolType.IP);
webserver.Connect(new IPEndPoint(rh.AddressList[0], rport));
byte[] databytes = Encoding.ASCII.GetBytes(data);
webserver.Send(databytes, databytes.Length, SocketFlags.None);
Debug.Print("SENT TO SERVER. WILL NOW RELAY: " + data);
//START RELAY
buffer = new byte[2048];
bool firstTime = true;
rec = 0;
data = "";
do
{
transferred = 0;
if (isTechnobase)
{
sent = client.Send(StrToByteArray(tbResponse), SocketFlags.None);
}
else
{
do
{
if (webserver.Poll((firstTime ? 9000 : 2000) * 1000, SelectMode.SelectRead))
{
rec = webserver.Receive(buffer, buffer.Length, SocketFlags.None);
//Debug.Print("RECEIVED FROM WEBSERVER[" + rec.ToString() + "]: " + Encoding.ASCII.GetString(buffer, 0, rec));
firstTime = false;
sent = client.Send(buffer, rec, SocketFlags.None);
//Debug.Print("SENT TO CLIENT[" + sent.ToString() + "]: " + Encoding.ASCII.GetString(buffer, 0, rec));
transferred += rec;
}
else
{
Debug.Print("No data polled from webserver");
}
} while (rec == buffer.Length);
Debug.Print("loop-1 finished");
}
//if (transferred == 0)
// break;
//transferred = 0;
//rec = 0;
//do
//{
// if (client.Poll(1000 * 1000, SelectMode.SelectRead))
// {
// rec = client.Receive(buffer, buffer.Length, SocketFlags.None);
// Debug.Print("RECEIVED FROM CLIENT: " + Encoding.ASCII.GetString(buffer, 0, rec));
// sent = webserver.Send(buffer, rec, SocketFlags.None);
// Debug.Print("SENT TO WEBSERVER[" + sent.ToString() + "]: " + Encoding.ASCII.GetString(buffer, 0, rec));
// transferred += rec;
// }
// else
// {
// Debug.Print("No data polled from client");
// }
//} while (rec == buffer.Length);
//Debug.Print("loop-2 finished");
} while (transferred > 0);
Debug.Print("LOOP ENDS. EXITING THREAD");
client.Close();
webserver.Close();
}
catch (Exception ex)
{
Debug.Print("Error occured: " + ex.Message);
}
finally
{
Debug.Print("Client thread closed");
}
}