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LocalServer.cs
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LocalServer.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.Globalization;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Windows.Forms;
using iSpyApplication.Cloud;
using iSpyApplication.Controls;
using iSpyApplication.Properties;
using iSpyApplication.Sources.Audio;
using iSpyApplication.Sources.Audio.streams;
using iSpyApplication.Sources.Audio.talk;
using iSpyApplication.Sources.Video;
using iSpyApplication.Utilities;
using NAudio.Wave;
using Color = System.Drawing.Color;
using DateTime = System.DateTime;
using File = System.IO.File;
using Image = System.Drawing.Image;
using IPAddress = System.Net.IPAddress;
using ThreadState = System.Threading.ThreadState;
namespace iSpyApplication.Server
{
public class RemoteCommandEventArgs : EventArgs
{
public string Command;
public int ObjectId;
public int ObjectTypeId;
// Constructor
public RemoteCommandEventArgs(string command, int objectid, int objecttypeid)
{
Command = command;
ObjectId = objectid;
ObjectTypeId = objecttypeid;
}
}
public partial class LocalServer: IDisposable
{
//private static readonly List<Socket> MySockets = new List<Socket>();
private static List<String> _allowedIPs, _allowedReferers;
private static readonly object StaticThreadLock = new object();
//private static int _socketindex;
public string ServerRoot;
private Hashtable _mimetypes;
private TcpListener _myListener;
public int NumErr;
private Thread _th;
private readonly object _threadLock = new object();
public WebSocketServer WebSocketServer;
public bool ServerStartupFailed = false;
public Hashtable MimeTypes
{
get
{
if (_mimetypes == null)
{
_mimetypes = new Hashtable();
using (var sr = new StreamReader(ServerRoot + @"data\mime.Dat"))
{
string sLine;
while ((sLine = sr.ReadLine()) != null)
{
sLine = sLine.Trim();
if (sLine.Length > 0)
{
//find the separator
int iStartPos = sLine.IndexOf(";", StringComparison.Ordinal);
// Convert to lower case
sLine = sLine.ToLower();
string sMimeExt = sLine.Substring(0, iStartPos);
string sMimeType = sLine.Substring(iStartPos + 1);
_mimetypes.Add(sMimeExt, sMimeType);
}
}
}
}
return _mimetypes;
}
}
public bool Running
{
get
{
lock (_threadLock)
{
if (_th == null)
return false;
try
{
return !_th.Join(TimeSpan.Zero);
}
catch
{
return true;
}
}
}
}
private IPAddress ListenerAddress
{
get
{
switch (MainForm.Conf.IPMode)
{
case "IPv6":
if (!MainForm.Conf.SpecificIP)
return IPAddress.IPv6Any;
return IPAddress.Parse(MainForm.AddressIPv6);
default:
if (!MainForm.Conf.SpecificIP)
return IPAddress.Any;
return IPAddress.Parse(MainForm.AddressIPv4);
}
}
}
public string StartServer()
{
bool ssl = false;
if (!string.IsNullOrEmpty(MainForm.Conf.SSLCertificate))
X509.LoadCertificate(MainForm.Conf.SSLCertificate);
else
{
if (ssl)
{
bool b;
var ip = WsWrapper.ExternalIPv4(true, out b);
if (b)
X509.CreateCertificate(ip);
}
}
string message = "";
try
{
_myListener = new TcpListener(ListenerAddress, MainForm.Conf.LANPort) { ExclusiveAddressUse = false };
if (MainForm.Conf.IPMode=="IPv6")
{
_myListener.AllowNatTraversal(true);
}
_myListener.Start(200);
WebSocketServer?.Close();
WebSocketServer = new WebSocketServer(this);
ServerStartupFailed = false;
}
catch (Exception e)
{
Logger.LogException(e,"Server");
StopServer();
message = "Could not start local iSpy server - please select a different LAN port in settings. The port specified is in use. See the log file for more information.";
ServerStartupFailed = true;
}
if (message != "")
{
Logger.LogMessage(message, "Server");
return message;
}
try
{
//start the thread which calls the method 'StartListen'
if (Running)
{
while (_th.ThreadState == ThreadState.AbortRequested)
{
Application.DoEvents();
}
}
}
catch (Exception e)
{
message = e.Message;
Logger.LogException(e, "Server");
}
lock (_threadLock)
{
_th = new Thread(StartListen) {IsBackground = true};
_th.Start();
}
return message;
}
public void StopServer()
{
if (_connectedSockets != null)
{
try
{
ClientConnected.Set();
lock (_connectedSocketsSyncHandle)
{
foreach (var req in _connectedSockets)
{
req.TcpClient.Client.Close();
}
}
}
catch (SocketException ex)
{
//During one socket disconnected we can faced exception
Logger.LogException(ex, "Server");
}
}
if (_myListener?.Server != null)
{
try
{
_myListener.Server.Close(0);
}
catch (Exception ex)
{
Logger.LogException(ex, "Server");
}
finally
{
_myListener.Stop();
}
_myListener = null;
}
WebSocketServer?.Close();
WebSocketServer = null;
}
/// <summary>
/// This function takes FileName as Input and returns the mime type..
/// </summary>
/// <param name="sRequestedFile">To indentify the Mime Type</param>
/// <returns>Mime Type</returns>
public string GetMimeType(string sRequestedFile)
{
if (sRequestedFile == "")
return "";
String sMimeType = "";
// Convert to lowercase
sRequestedFile = sRequestedFile.ToLower();
int iStartPos = sRequestedFile.LastIndexOf(".", StringComparison.Ordinal);
if (iStartPos == -1)
return "text/javascript";
string sFileExt = sRequestedFile.Substring(iStartPos);
if (MimeTypes.ContainsKey(sFileExt))
sMimeType = MimeTypes[sFileExt].ToString();
return sMimeType;
}
private bool SendHeader(string sHttpVersion, string sMimeHeader, int iTotBytes, string sStatusCode, int cacheDays,
HttpRequest req)
{
return SendHeader(sHttpVersion, sMimeHeader, iTotBytes, sStatusCode, cacheDays, req, "", false);
}
private bool SendHeader(string sHttpVersion, string sMimeHeader, int iTotBytes, string sStatusCode, int cacheDays,
HttpRequest req, string fileName, bool gZip)
{
string sBuffer = "";
// if Mime type is not provided set default to text/html
if (sMimeHeader.Length == 0)
{
sMimeHeader = "text/html"; // Default Mime Type is text/html
}
sBuffer += sHttpVersion + sStatusCode + "\r\n";
sBuffer += "Server: iSpy\r\n";
if (fileName!="")
{
sBuffer += "Content-Type: application/octet-stream\r\n";
sBuffer += "Content-Disposition: attachment; filename=\"" + fileName + "\"\r\n";
}
else
sBuffer += "Content-Type: " + sMimeHeader + "\r\n";
//sBuffer += "X-Content-Type-Options: nosniff\r\n";
sBuffer += "Accept-Ranges: bytes\r\n";
sBuffer += "Access-Control-Allow-Origin: *\r\n";
if (iTotBytes > -1)
sBuffer += "Content-Length: " + iTotBytes + "\r\n";
if (gZip)
{
sBuffer += "Content-Encoding: gzip\r\n";
}
//sBuffer += "Cache-Control:Date: Tue, 25 Jan 2011 08:18:53 GMT\r\nExpires: Tue, 08 Feb 2011 05:06:38 GMT\r\nConnection: keep-alive\r\n";
if (cacheDays > 0)
{
//this is needed for video content to work in chrome/android
DateTime d = DateTime.UtcNow;
sBuffer += "Cache-Control: Date: " + d.ToUniversalTime().ToString("r") +
"\r\nLast-Modified: Tue, 01 Jan 2011 12:00:00 GMT\r\nExpires: " +
d.AddDays(cacheDays).ToUniversalTime().ToString("r") + "\r\nConnection: keep-alive\r\n";
}
else
{
sBuffer +=
"Pragma: no-cache\r\nExpires: Fri, 30 Oct 1998 14:19:41 GMT\r\nCache-directive: no-cache\r\nCache-control: no-cache\r\nPragma: no-cache\r\nExpires: 0\r\n";
}
sBuffer += "\r\n";
return SendToBrowser(sBuffer, req);
}
private bool SendHeaderWithRange(string sHttpVersion, string sMimeHeader, int iStartBytes, int iEndBytes,
int iTotBytes, string sStatusCode, int cacheDays, HttpRequest req, string fileName)
{
string sBuffer = "";
// if Mime type is not provided set default to text/html
if (sMimeHeader.Length == 0)
{
sMimeHeader = "text/html"; // Default Mime Type is text/html
}
sBuffer += sHttpVersion + sStatusCode + "\r\n";
sBuffer += "Server: iSpy\r\n";
if (fileName != "")
{
sBuffer += "Content-Type: application/octet-stream\r\n";
sBuffer += "Content-Disposition: attachment; filename=\"" + fileName + "\"\r\n";
}
else
sBuffer += "Content-Type: " + sMimeHeader + "\r\n";
//sBuffer += "X-Content-Type-Options: nosniff\r\n";
sBuffer += "Accept-Ranges: bytes\r\n";
sBuffer += "Content-Range: bytes " + iStartBytes + "-" + iEndBytes + "/" + (iTotBytes) + "\r\n";
sBuffer += "Content-Length: " + (iEndBytes - iStartBytes + 1) + "\r\n";
if (cacheDays > 0)
{
//this is needed for video content to work in chrome/android
DateTime d = DateTime.UtcNow;
sBuffer += "Cache-Control: Date: " + d.ToUniversalTime().ToString("r") +
"\r\nLast-Modified: Tue, 01 Jan 2011 12:00:00 GMT\r\nExpires: " +
d.AddDays(cacheDays).ToUniversalTime().ToString("r") + "\r\nConnection: keep-alive\r\n";
}
sBuffer += "\r\n";
byte[] bSendData = Encoding.UTF8.GetBytes(sBuffer);
return SendToBrowser(bSendData, req);
}
public bool SendResponse(string sHttpVersion, string sMimeType, string sData, string statusCode, int cacheDays, HttpRequest req, bool gZip = false)
{
var b = Encoding.UTF8.GetBytes(sData);
return SendResponse(sHttpVersion, sMimeType, b, statusCode, cacheDays, req, gZip);
}
public bool SendResponse(string sHttpVersion, string sMimeType, byte[] bData, string statusCode, int cacheDays, HttpRequest req, bool gZip = false)
{
if (SendHeader(sHttpVersion, sMimeType, bData.Length, statusCode, cacheDays, req, "", gZip))
return SendToBrowser(bData, req);
return false;
}
public bool SendToBrowser(string sData, HttpRequest req)
{
return SendToBrowser(Encoding.UTF8.GetBytes(sData), req);
}
/// <summary>
/// Sends data to the browser (client)
/// </summary>
/// <param name="bSendData">Byte Array</param>
/// <param name="req">HTTP Request</param>
public bool SendToBrowser(byte[] bSendData, HttpRequest req)
{
try
{
if (req.TcpClient.Client.Connected)
{
req.Stream.Write(bSendData,0,bSendData.Length);
return true;
//if (req.TcpClient.Client.Send(bSendData) == -1)
// Logger.LogException(new Exception("Socket Error cannot Send Packet"));
}
}
catch (SocketException)
{
//connection error
}
catch (Exception)
{
//dropped connection
}
return false;
}
/// <summary>
/// Sends data to the browser (client)
/// </summary>
/// <param name="bSendData">Byte Array</param>
/// <param name="datalength"></param>
/// <param name="req">HTTP Request</param>
public void SendToBrowser(byte[] bSendData, int datalength, HttpRequest req)
{
try
{
if (req.TcpClient.Client.Connected)
{
req.Stream.Write(bSendData, 0, datalength);
//if (req.TcpClient.Client.Send(bSendData) == -1)
// Logger.LogException(new Exception("Socket Error cannot Send Packet"));
}
}
catch (SocketException)
{
//connection error
}
catch (Exception e)
{
Logger.LogException(e, "Server");
}
}
public bool ThumbnailCallback()
{
return false;
}
public static AutoResetEvent ClientConnected = new AutoResetEvent(false);
private List<HttpRequest> _connectedSockets;
private readonly object _connectedSocketsSyncHandle = new object();
//This method Accepts new connection and
//First it receives the welcome massage from the client,
//Then it sends the Current date time to the Client.
private void StartListen()
{
_connectedSockets = new List<HttpRequest>();
NumErr = 0;
while (!MainForm.ShuttingDown && NumErr < 5 && _myListener != null)
{
try
{
_myListener?.BeginAcceptTcpClient(DoAcceptClientCallback, _myListener);
}
catch (ObjectDisposedException)
{
break;
}
catch (Exception ex)
{
Logger.LogException(ex, "Server");
break;
}
// Wait until a connection is made and processed before
// continuing.
ClientConnected?.WaitOne(); // Wait until a client has begun handling an event
ClientConnected?.Reset();
}
}
private static bool ClientValidationCallback(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
if (!MainForm.Conf.SSLIgnoreErrors)
{
switch (sslPolicyErrors)
{
case SslPolicyErrors.RemoteCertificateNameMismatch:
Logger.LogError("Client name mismatch. End communication", "Server");
return false;
case SslPolicyErrors.RemoteCertificateNotAvailable:
Logger.LogError("Client's certificate not available. End communication", "Server");
return false;
case SslPolicyErrors.RemoteCertificateChainErrors:
Logger.LogError("Client's certificate validation failed. End communication", "Server");
return false;
}
}
//Logger.Log(LogLevel.Information, "Client's authentication succeeded ...\n");
return true;
}
private void OnAuthenticateAsServer(IAsyncResult result)
{
HttpRequest req = null;
try
{
req = result.AsyncState as HttpRequest;
var sslStream = req?.Stream as SslStream;
if (sslStream != null)
{
sslStream.EndAuthenticateAsServer(result);
if (!sslStream.IsAuthenticated)
{
DisconnectRequest(req);
}
}
}
catch (Exception ex)
{
Logger.LogException(ex);
DisconnectRequest(req);
return;
}
req?.Stream?.BeginRead(req.Buffer, 0, req.Buffer.Length, ReadCallback, req);
}
public void DoAcceptClientCallback(IAsyncResult ar)
{
ClientConnected.Set();
if (MainForm.ShuttingDown)
return;
try
{
var listener = (TcpListener) ar.AsyncState;
TcpClient myClient = listener.EndAcceptTcpClient(ar);
var endPoint = (IPEndPoint)myClient.Client.RemoteEndPoint;
var req = new HttpRequest
{EndPoint = endPoint, TcpClient = myClient, Buffer = new byte[myClient.ReceiveBufferSize]};
lock (_connectedSocketsSyncHandle)
{
var cs = _connectedSockets.FirstOrDefault(p => p.EndPoint.ToString() == endPoint.ToString());
if (cs != null)
{
cs.TcpClient.Client.Close();
_connectedSockets.Remove(cs);
}
SetDesiredKeepAlive(myClient.Client);
_connectedSockets.Add(req);
}
var mySocket = myClient.Client;
if (MainForm.Conf.IPMode== "IPv6")
mySocket.SetIPProtectionLevel(IPProtectionLevel.Unrestricted);
if (mySocket.Connected)
{
mySocket.NoDelay = true;
mySocket.ReceiveBufferSize = 8192;
mySocket.ReceiveTimeout = mySocket.SendTimeout = 4000;
try
{
if (X509.SslCertificate != null)
{
req.RestartableStream = new RestartableReadStream(req.TcpClient.GetStream());
req.Stream = new SslStream(req.RestartableStream, true, ClientValidationCallback);
try
{
((SslStream) req.Stream).BeginAuthenticateAsServer(X509.SslCertificate,
true, SslProtocols.Tls12,
//MainForm.Conf.SSLClientRequired, SslProtocols.Default,
MainForm.Conf.SSLCheckRevocation, OnAuthenticateAsServer, req);
}
catch
{
DisconnectRequest(req);
}
}
else
{
req.Stream = req.TcpClient.GetStream();
req.Stream.BeginRead(req.Buffer, 0, req.Buffer.Length, ReadCallback, req);
}
}
catch (SocketException ex)
{
//ignore connection timeout errors
if (ex.ErrorCode != 10060)
{
Logger.LogException(ex, "Server");
NumErr++;
}
DisconnectRequest(req);
}
catch (IOException)
{
//no data (port scan?)
DisconnectRequest(req);
}
}
}
catch(ObjectDisposedException)
{
//socket closed already
}
catch (Exception ex)
{
Logger.LogException(ex, "Server");
NumErr++;
}
}
private void ReadCallback(IAsyncResult result)
{
var req = result.AsyncState as HttpRequest;
if (req != null)
{
try
{
var read = req.Stream.EndRead(result);
if (read > 0)
{
req.UTF8 += Encoding.UTF8.GetString(req.Buffer, 0, read);
req.BytesRead += read;
}
//flash xml request
if (req.UTF8.StartsWith("<policy-file-request/>"))
{
req.TcpClient.Client.SendFile(Program.AppPath + @"WebServerRoot\crossdomain.xml");
DisconnectRequest(req);
NumErr = 0;
return;
}
//talk in socket call
if (req.UTF8.StartsWith("TALK,"))
{
if (req.UTF8.Length > 10)
{
string[] cfg = req.UTF8.Substring(0, 10).Split(',');
int cid = Convert.ToInt32(cfg[1]);
var feed = new Thread(p => AudioIn(req, cid)) {IsBackground = true};
feed.Start();
return;
}
}
int iStartPos = req.UTF8.IndexOf("\r\n\r\n", StringComparison.Ordinal);
if (iStartPos>-1)
{
List<string> headers = req.UTF8.Substring(0, iStartPos).Split('\n').ToList();
var cl = headers.FirstOrDefault(p => p.Trim().StartsWith("Content-Length", StringComparison.OrdinalIgnoreCase));
var v = cl?.Split(':');
if (v?.Length > 1)
{
int icl = Convert.ToInt32(v[1].Trim());
if (icl > req.BytesRead - iStartPos - 4)
{
req.Stream.BeginRead(req.Buffer, 0, req.Buffer.Length, ReadCallback, req);
return;
}
}
ProcessRequest(req.UTF8, req);
}
else
{
if (read==0)
DisconnectRequest(req);
else
{
if (req.UTF8.Length>200000)
throw new Exception("Incoming request is too long");
req.Stream.BeginRead(req.Buffer, 0, req.Buffer.Length, ReadCallback, req);
}
}
}
catch
{
//connection closed
DisconnectRequest(req);
}
}
}
private void ProcessRequest(string sBuffer, HttpRequest req)
{
if (sBuffer.Length < 5)
{
DisconnectRequest(req);
return;
}
try
{
//make a byte array and receive data from the client
string sHttpVersion;
string resp;
String sMimeType;
bool bServe;
var iMeth = sBuffer.IndexOf(" ", StringComparison.Ordinal);
if (iMeth == -1)
goto Finish;
var m = sBuffer.Substring(0, iMeth);
switch (m)
{
case "OPTIONS":
string sResponse = "HTTP/1.1 200 OK\r\n";
sResponse += "Server: iSpy\r\n";
sResponse += "Access-Control-Allow-Origin: *\r\n";
sResponse += "Access-Control-Allow-Methods: GET,POST,OPTIONS\r\n";
sResponse += "Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept\r\n";
sResponse += "Connection: close\r\n";
sResponse += "\r\n";
SendToBrowser(sResponse, req);
goto Finish;
case "GET":
case "POST":
break;
default:
goto Finish;
}
string sRequest;
string sPhysicalFilePath;
string errMessage;
string sRequestedFile;
try
{
string sErrorMessage;
string sLocalDir;
string sDirName;
string sFileName;
ParseRequest(ServerRoot, sBuffer, out sRequest, out sRequestedFile,
out sErrorMessage,
out sLocalDir, out sDirName, out sPhysicalFilePath, out sHttpVersion,
out sFileName, out sMimeType, out bServe, out errMessage,req);
}
catch (Exception ex)
{
Logger.LogException(ex,"Server (parse request)");
goto Finish;
}
if (!bServe && string.IsNullOrEmpty(sRequestedFile))
{
resp = "iSpy is running. Access this server via the website";
if (errMessage != "")
resp += " (" + errMessage + ")";
SendResponse(sHttpVersion, "text/text", resp, " 200 OK", 0, req);
goto Finish;
}
if (!bServe)
{
if (errMessage != "")
errMessage = " (" + errMessage + ")";
resp = "{\"server\":\"iSpy\",\"error\":\"Authentication failed" + errMessage +
"\",\"errorType\":\"authentication\"}";
SendResponse(sHttpVersion, "text/javascript", resp, " 200 OK", 0, req);
goto Finish;
}
resp = ProcessCommandInternal(sRequest);
if (resp != "")
{
bool gzip = resp.Length > 400 && MainForm.Conf.EnableGZip &&
HeaderEnabled(sBuffer, "Accept-Encoding", "gzip");
if (gzip)
{
var arr = Gzip(Encoding.UTF8.GetBytes(resp));
SendResponse(sHttpVersion, "text/javascript", arr, " 200 OK", 0, req, true);
}
else
{
SendResponse(sHttpVersion, "text/javascript", resp, " 200 OK", 0, req, false);
}
}
else //not a js request
{
string cmd = sRequest.Trim('/').ToLower();
int i = cmd.IndexOf("?", StringComparison.Ordinal);
if (i > -1)
cmd = cmd.Substring(0, i);
if (cmd.StartsWith("get /"))
cmd = cmd.Substring(5);
if (cmd.StartsWith("post /"))
cmd = cmd.Substring(6);
int oid, otid;
int.TryParse(GetVar(sRequest, "oid"), out oid);
int.TryParse(GetVar(sRequest, "ot"), out otid);
switch (cmd)
{
case "logfile":
SendLogFile(sHttpVersion, req);
break;
case "getlogfile":
SendLogFile(sPhysicalFilePath, sHttpVersion, req);
break;
case "livefeed":
SendLiveFeed(sPhysicalFilePath, sHttpVersion, req);
break;
case "desktopfeed":
SendDesktop(sPhysicalFilePath, sHttpVersion, req);
break;
case "loadgrab":
case "loadgrab.jpg":
SendGrab(sPhysicalFilePath, sHttpVersion, req);
break;
case "loadimage":
case "loadimage.jpg":
SendImage(sPhysicalFilePath, sHttpVersion, req);
break;
case "floorplanfeed":
SendFloorPlanFeed(sPhysicalFilePath, sHttpVersion, req);
break;
case "audiofeed.mp3":
SendAudioFeed(Enums.AudioStreamMode.MP3, sBuffer, sPhysicalFilePath, req);
return;
case "loadobject.json":
LoadJson(sPhysicalFilePath, sRequest, sBuffer, sHttpVersion, req);
break;
case "saveobject.json":
SaveJson(sPhysicalFilePath, sHttpVersion, sBuffer, req);
break;
case "video.mjpg":
case "video.cgi":
case "video.mjpeg":
case "video.jpg":
case "mjpegfeed":
SendMJPEGFeed(sPhysicalFilePath, req);
return;
case "loadclip.flv":
case "loadclip.fla":
case "loadclip.mp3":
case "loadclip.mp4":
case "loadclip.avi":
SendClip(sPhysicalFilePath, sBuffer, sHttpVersion, req, false);
break;
case "downloadclip.avi":
case "downloadclip.mp3":
case "downloadclip.mp4":
SendClip(sPhysicalFilePath, sBuffer, sHttpVersion, req, true);
break;
case "websocket":
WebSocketServer.ConnectSocket(sBuffer, req);
return;
default:
if (sPhysicalFilePath.IndexOf('?') != -1)
{
sPhysicalFilePath = sPhysicalFilePath.Substring(0, sPhysicalFilePath.IndexOf('?'));
}
if (!File.Exists(sPhysicalFilePath))
{
ServeNotFound(sHttpVersion, req);
}
else
{
ServeFile(sHttpVersion, sPhysicalFilePath, sMimeType, req);
}
break;
}
}
Finish:
DisconnectRequest(req);
NumErr = 0;
}
catch (SocketException ex)
{
//ignore connection timeout errors
if (ex.ErrorCode != 10060)
{
Logger.LogException(ex, "Server");
NumErr++;
}
DisconnectRequest(req);
}
catch (Exception ex)
{
Logger.LogException(ex,"Server");
}
}
private static bool HeaderEnabled(string req, string header, string val)
{
header = header.ToLower();
req = req.ToLower();
val = val.ToLower();
var p = req.Split(Environment.NewLine.ToCharArray());
foreach(var s in p)
{
if (!s.StartsWith(header)) continue;
var v = s.Split(':');
if (v.Length>1)
{
string[] l = v[1].Split(',');
return l.Any(lp => lp.Trim() == val);
}
return false;
}
return false;
}
private static byte[] Gzip(byte[] bytes)
{
using (MemoryStream outStream = new MemoryStream())
{
using (GZipStream gzipStream = new GZipStream(outStream, CompressionMode.Compress))
using (MemoryStream srcStream = new MemoryStream(bytes))
srcStream.CopyTo(gzipStream);
return outStream.ToArray();
}
}
private static void SetDesiredKeepAlive(Socket socket)
{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
const uint time = 10000;
const uint interval = 20000;
SetKeepAlive(socket, true, time, interval);
}
static void SetKeepAlive(Socket s, bool on, uint time, uint interval)
{
/* the native structure
struct tcp_keepalive {
ULONG onoff;
ULONG keepalivetime;
ULONG keepaliveinterval;
};
*/
// marshal the equivalent of the native structure into a byte array
const uint dummy = 0;
var inOptionValues = new byte[Marshal.SizeOf(dummy) * 3];
BitConverter.GetBytes((uint)(on ? 1 : 0)).CopyTo(inOptionValues, 0);
BitConverter.GetBytes(time).CopyTo(inOptionValues, Marshal.SizeOf(dummy));
BitConverter.GetBytes(interval).CopyTo(inOptionValues, Marshal.SizeOf(dummy) * 2);
// of course there are other ways to marshal up this byte array, this is just one way
// call WSAIoctl via IOControl
s.IOControl(IOControlCode.KeepAliveValues, inOptionValues, null);
}
private void SendClip(String sPhysicalFilePath, string sBuffer, string sHttpVersion, HttpRequest req, bool downloadFile)
{
int oid = Convert.ToInt32(GetVar(sPhysicalFilePath, "oid"));
int ot = Convert.ToInt32(GetVar(sPhysicalFilePath, "ot"));
string dir = Helper.GetMediaDirectory(ot, oid);
if (ot==1)
{
dir += @"audio\"+MainForm.Microphones.Single(p => p.id == oid).directory + @"\";
}