mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-09-06 13:57:14 -04:00
* Remove some unused variables * remove duplicate "using .." by sorting and deduping the list * Remove things that already exist in the parent class (in one case I moved some documentation to the parent) * EntityBodyData and and NextSearch were never set (only read), removed * _timeout was never read, subsequently _timer became unused. part of a TODO timeout functionality that was not implemented yet
529 lines
15 KiB
C#
529 lines
15 KiB
C#
using System;
|
|
using System.IO;
|
|
using System.Net;
|
|
using System.Net.Security;
|
|
using System.Net.Sockets;
|
|
using System.Security.Authentication;
|
|
using System.Security.Cryptography.X509Certificates;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
using MediaBrowser.Model.Cryptography;
|
|
using MediaBrowser.Model.IO;
|
|
using MediaBrowser.Model.System;
|
|
using Microsoft.Extensions.Logging;
|
|
namespace SocketHttpListener.Net
|
|
{
|
|
sealed class HttpConnection
|
|
{
|
|
private static AsyncCallback s_onreadCallback = new AsyncCallback(OnRead);
|
|
const int BufferSize = 8192;
|
|
Socket _socket;
|
|
Stream _stream;
|
|
HttpEndPointListener _epl;
|
|
MemoryStream _memoryStream;
|
|
byte[] _buffer;
|
|
HttpListenerContext _context;
|
|
StringBuilder _currentLine;
|
|
ListenerPrefix _prefix;
|
|
HttpRequestStream _requestStream;
|
|
HttpResponseStream _responseStream;
|
|
bool _chunked;
|
|
int _reuses;
|
|
bool _contextBound;
|
|
bool secure;
|
|
IPEndPoint local_ep;
|
|
HttpListener _lastListener;
|
|
X509Certificate cert;
|
|
SslStream ssl_stream;
|
|
|
|
private readonly ILogger _logger;
|
|
private readonly ICryptoProvider _cryptoProvider;
|
|
private readonly IStreamHelper _streamHelper;
|
|
private readonly IFileSystem _fileSystem;
|
|
private readonly IEnvironmentInfo _environment;
|
|
|
|
public HttpConnection(ILogger logger, Socket socket, HttpEndPointListener epl, bool secure,
|
|
X509Certificate cert, ICryptoProvider cryptoProvider, IStreamHelper streamHelper, IFileSystem fileSystem,
|
|
IEnvironmentInfo environment)
|
|
{
|
|
_logger = logger;
|
|
this._socket = socket;
|
|
this._epl = epl;
|
|
this.secure = secure;
|
|
this.cert = cert;
|
|
_cryptoProvider = cryptoProvider;
|
|
_streamHelper = streamHelper;
|
|
_fileSystem = fileSystem;
|
|
_environment = environment;
|
|
|
|
if (secure == false)
|
|
{
|
|
_stream = new SocketStream(_socket, false);
|
|
}
|
|
else
|
|
{
|
|
ssl_stream = new SslStream(new SocketStream(_socket, false), false, (t, c, ch, e) =>
|
|
{
|
|
if (c == null)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
//var c2 = c as X509Certificate2;
|
|
//if (c2 == null)
|
|
//{
|
|
// c2 = new X509Certificate2(c.GetRawCertData());
|
|
//}
|
|
|
|
//_clientCert = c2;
|
|
//_clientCertErrors = new int[] { (int)e };
|
|
return true;
|
|
});
|
|
|
|
_stream = ssl_stream;
|
|
}
|
|
}
|
|
|
|
public Stream Stream => _stream;
|
|
|
|
public async Task Init()
|
|
{
|
|
if (ssl_stream != null)
|
|
{
|
|
var enableAsync = true;
|
|
if (enableAsync)
|
|
{
|
|
await ssl_stream.AuthenticateAsServerAsync(cert, false, (SslProtocols)ServicePointManager.SecurityProtocol, false).ConfigureAwait(false);
|
|
}
|
|
else
|
|
{
|
|
ssl_stream.AuthenticateAsServer(cert, false, (SslProtocols)ServicePointManager.SecurityProtocol, false);
|
|
}
|
|
}
|
|
|
|
InitInternal();
|
|
}
|
|
|
|
private void InitInternal()
|
|
{
|
|
_contextBound = false;
|
|
_requestStream = null;
|
|
_responseStream = null;
|
|
_prefix = null;
|
|
_chunked = false;
|
|
_memoryStream = new MemoryStream();
|
|
_position = 0;
|
|
_inputState = InputState.RequestLine;
|
|
_lineState = LineState.None;
|
|
_context = new HttpListenerContext(this);
|
|
}
|
|
|
|
public bool IsClosed => (_socket == null);
|
|
|
|
public int Reuses => _reuses;
|
|
|
|
public IPEndPoint LocalEndPoint
|
|
{
|
|
get
|
|
{
|
|
if (local_ep != null)
|
|
return local_ep;
|
|
|
|
local_ep = (IPEndPoint)_socket.LocalEndPoint;
|
|
return local_ep;
|
|
}
|
|
}
|
|
|
|
public IPEndPoint RemoteEndPoint => _socket.RemoteEndPoint as IPEndPoint;
|
|
|
|
public bool IsSecure => secure;
|
|
|
|
public ListenerPrefix Prefix
|
|
{
|
|
get => _prefix;
|
|
set => _prefix = value;
|
|
}
|
|
|
|
private void OnTimeout(object unused)
|
|
{
|
|
//_logger.LogInformation("HttpConnection timer fired");
|
|
CloseSocket();
|
|
Unbind();
|
|
}
|
|
|
|
public void BeginReadRequest()
|
|
{
|
|
if (_buffer == null)
|
|
_buffer = new byte[BufferSize];
|
|
try
|
|
{
|
|
_stream.BeginRead(_buffer, 0, BufferSize, s_onreadCallback, this);
|
|
}
|
|
catch
|
|
{
|
|
CloseSocket();
|
|
Unbind();
|
|
}
|
|
}
|
|
|
|
public HttpRequestStream GetRequestStream(bool chunked, long contentlength)
|
|
{
|
|
if (_requestStream == null)
|
|
{
|
|
byte[] buffer = _memoryStream.GetBuffer();
|
|
int length = (int)_memoryStream.Length;
|
|
_memoryStream = null;
|
|
if (chunked)
|
|
{
|
|
_chunked = true;
|
|
//_context.Response.SendChunked = true;
|
|
_requestStream = new ChunkedInputStream(_context, _stream, buffer, _position, length - _position);
|
|
}
|
|
else
|
|
{
|
|
_requestStream = new HttpRequestStream(_stream, buffer, _position, length - _position, contentlength);
|
|
}
|
|
}
|
|
return _requestStream;
|
|
}
|
|
|
|
public HttpResponseStream GetResponseStream(bool isExpect100Continue = false)
|
|
{
|
|
// TODO: can we get this _stream before reading the input?
|
|
if (_responseStream == null)
|
|
{
|
|
var supportsDirectSocketAccess = !_context.Response.SendChunked && !isExpect100Continue && !secure;
|
|
|
|
_responseStream = new HttpResponseStream(_stream, _context.Response, false, _streamHelper, _socket, supportsDirectSocketAccess, _environment, _fileSystem, _logger);
|
|
}
|
|
return _responseStream;
|
|
}
|
|
|
|
private static void OnRead(IAsyncResult ares)
|
|
{
|
|
var cnc = (HttpConnection)ares.AsyncState;
|
|
cnc.OnReadInternal(ares);
|
|
}
|
|
|
|
private void OnReadInternal(IAsyncResult ares)
|
|
{
|
|
int nread = -1;
|
|
try
|
|
{
|
|
nread = _stream.EndRead(ares);
|
|
_memoryStream.Write(_buffer, 0, nread);
|
|
if (_memoryStream.Length > 32768)
|
|
{
|
|
SendError("Bad Request", 400);
|
|
Close(true);
|
|
return;
|
|
}
|
|
}
|
|
catch
|
|
{
|
|
if (_memoryStream != null && _memoryStream.Length > 0)
|
|
SendError();
|
|
if (_socket != null)
|
|
{
|
|
CloseSocket();
|
|
Unbind();
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (nread == 0)
|
|
{
|
|
CloseSocket();
|
|
Unbind();
|
|
return;
|
|
}
|
|
|
|
if (ProcessInput(_memoryStream))
|
|
{
|
|
if (!_context.HaveError)
|
|
_context.Request.FinishInitialization();
|
|
|
|
if (_context.HaveError)
|
|
{
|
|
SendError();
|
|
Close(true);
|
|
return;
|
|
}
|
|
|
|
if (!_epl.BindContext(_context))
|
|
{
|
|
const int NotFoundErrorCode = 404;
|
|
SendError(HttpStatusDescription.Get(NotFoundErrorCode), NotFoundErrorCode);
|
|
Close(true);
|
|
return;
|
|
}
|
|
HttpListener listener = _epl.Listener;
|
|
if (_lastListener != listener)
|
|
{
|
|
RemoveConnection();
|
|
listener.AddConnection(this);
|
|
_lastListener = listener;
|
|
}
|
|
|
|
_contextBound = true;
|
|
listener.RegisterContext(_context);
|
|
return;
|
|
}
|
|
_stream.BeginRead(_buffer, 0, BufferSize, s_onreadCallback, this);
|
|
}
|
|
|
|
private void RemoveConnection()
|
|
{
|
|
if (_lastListener == null)
|
|
_epl.RemoveConnection(this);
|
|
else
|
|
_lastListener.RemoveConnection(this);
|
|
}
|
|
|
|
private enum InputState
|
|
{
|
|
RequestLine,
|
|
Headers
|
|
}
|
|
|
|
private enum LineState
|
|
{
|
|
None,
|
|
CR,
|
|
LF
|
|
}
|
|
|
|
InputState _inputState = InputState.RequestLine;
|
|
LineState _lineState = LineState.None;
|
|
int _position;
|
|
|
|
// true -> done processing
|
|
// false -> need more input
|
|
private bool ProcessInput(MemoryStream ms)
|
|
{
|
|
byte[] buffer = ms.GetBuffer();
|
|
int len = (int)ms.Length;
|
|
int used = 0;
|
|
string line;
|
|
|
|
while (true)
|
|
{
|
|
if (_context.HaveError)
|
|
return true;
|
|
|
|
if (_position >= len)
|
|
break;
|
|
|
|
try
|
|
{
|
|
line = ReadLine(buffer, _position, len - _position, ref used);
|
|
_position += used;
|
|
}
|
|
catch
|
|
{
|
|
_context.ErrorMessage = "Bad request";
|
|
_context.ErrorStatus = 400;
|
|
return true;
|
|
}
|
|
|
|
if (line == null)
|
|
break;
|
|
|
|
if (line == "")
|
|
{
|
|
if (_inputState == InputState.RequestLine)
|
|
continue;
|
|
_currentLine = null;
|
|
ms = null;
|
|
return true;
|
|
}
|
|
|
|
if (_inputState == InputState.RequestLine)
|
|
{
|
|
_context.Request.SetRequestLine(line);
|
|
_inputState = InputState.Headers;
|
|
}
|
|
else
|
|
{
|
|
try
|
|
{
|
|
_context.Request.AddHeader(line);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
_context.ErrorMessage = e.Message;
|
|
_context.ErrorStatus = 400;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (used == len)
|
|
{
|
|
ms.SetLength(0);
|
|
_position = 0;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private string ReadLine(byte[] buffer, int offset, int len, ref int used)
|
|
{
|
|
if (_currentLine == null)
|
|
_currentLine = new StringBuilder(128);
|
|
int last = offset + len;
|
|
used = 0;
|
|
for (int i = offset; i < last && _lineState != LineState.LF; i++)
|
|
{
|
|
used++;
|
|
byte b = buffer[i];
|
|
if (b == 13)
|
|
{
|
|
_lineState = LineState.CR;
|
|
}
|
|
else if (b == 10)
|
|
{
|
|
_lineState = LineState.LF;
|
|
}
|
|
else
|
|
{
|
|
_currentLine.Append((char)b);
|
|
}
|
|
}
|
|
|
|
string result = null;
|
|
if (_lineState == LineState.LF)
|
|
{
|
|
_lineState = LineState.None;
|
|
result = _currentLine.ToString();
|
|
_currentLine.Length = 0;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public void SendError(string msg, int status)
|
|
{
|
|
try
|
|
{
|
|
HttpListenerResponse response = _context.Response;
|
|
response.StatusCode = status;
|
|
response.ContentType = "text/html";
|
|
string description = HttpStatusDescription.Get(status);
|
|
string str;
|
|
if (msg != null)
|
|
str = string.Format("<h1>{0} ({1})</h1>", description, msg);
|
|
else
|
|
str = string.Format("<h1>{0}</h1>", description);
|
|
|
|
byte[] error = Encoding.UTF8.GetBytes(str);
|
|
response.Close(error, false);
|
|
}
|
|
catch
|
|
{
|
|
// response was already closed
|
|
}
|
|
}
|
|
|
|
public void SendError()
|
|
{
|
|
SendError(_context.ErrorMessage, _context.ErrorStatus);
|
|
}
|
|
|
|
private void Unbind()
|
|
{
|
|
if (_contextBound)
|
|
{
|
|
_epl.UnbindContext(_context);
|
|
_contextBound = false;
|
|
}
|
|
}
|
|
|
|
public void Close()
|
|
{
|
|
Close(false);
|
|
}
|
|
|
|
private void CloseSocket()
|
|
{
|
|
if (_socket == null)
|
|
return;
|
|
|
|
try
|
|
{
|
|
_socket.Close();
|
|
}
|
|
catch { }
|
|
finally
|
|
{
|
|
_socket = null;
|
|
}
|
|
|
|
RemoveConnection();
|
|
}
|
|
|
|
internal void Close(bool force)
|
|
{
|
|
if (_socket != null)
|
|
{
|
|
Stream st = GetResponseStream();
|
|
if (st != null)
|
|
st.Close();
|
|
|
|
_responseStream = null;
|
|
}
|
|
|
|
if (_socket != null)
|
|
{
|
|
force |= !_context.Request.KeepAlive;
|
|
if (!force)
|
|
force = (string.Equals(_context.Response.Headers["connection"], "close", StringComparison.OrdinalIgnoreCase));
|
|
|
|
if (!force && _context.Request.FlushInput())
|
|
{
|
|
if (_chunked && _context.Response.ForceCloseChunked == false)
|
|
{
|
|
// Don't close. Keep working.
|
|
_reuses++;
|
|
Unbind();
|
|
InitInternal();
|
|
BeginReadRequest();
|
|
return;
|
|
}
|
|
|
|
_reuses++;
|
|
Unbind();
|
|
InitInternal();
|
|
BeginReadRequest();
|
|
return;
|
|
}
|
|
|
|
Socket s = _socket;
|
|
_socket = null;
|
|
try
|
|
{
|
|
if (s != null)
|
|
s.Shutdown(SocketShutdown.Both);
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
finally
|
|
{
|
|
if (s != null)
|
|
{
|
|
try
|
|
{
|
|
s.Close();
|
|
}
|
|
catch { }
|
|
}
|
|
}
|
|
Unbind();
|
|
RemoveConnection();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|