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@@ -1,532 +0,0 @@
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-using System;
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-using System.IO;
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-using System.Net;
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-using System.Net.Security;
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-using System.Net.Sockets;
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-using System.Security.Authentication;
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-using System.Security.Cryptography.X509Certificates;
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-using System.Text;
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-using System.Threading;
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-using System.Threading.Tasks;
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-using MediaBrowser.Model.Cryptography;
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-using MediaBrowser.Model.IO;
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-using MediaBrowser.Model.System;
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-using Microsoft.Extensions.Logging;
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-namespace SocketHttpListener.Net
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-{
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- sealed class HttpConnection
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- {
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- private static AsyncCallback s_onreadCallback = new AsyncCallback(OnRead);
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- const int BufferSize = 8192;
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- Socket _socket;
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- Stream _stream;
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- HttpEndPointListener _epl;
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- MemoryStream _memoryStream;
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- byte[] _buffer;
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- HttpListenerContext _context;
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- StringBuilder _currentLine;
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- ListenerPrefix _prefix;
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- HttpRequestStream _requestStream;
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- HttpResponseStream _responseStream;
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- bool _chunked;
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- int _reuses;
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- bool _contextBound;
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- bool secure;
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- IPEndPoint local_ep;
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- HttpListener _lastListener;
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- X509Certificate cert;
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- SslStream ssl_stream;
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-
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- private readonly ILogger _logger;
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- private readonly ICryptoProvider _cryptoProvider;
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- private readonly IStreamHelper _streamHelper;
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- private readonly IFileSystem _fileSystem;
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- private readonly IEnvironmentInfo _environment;
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-
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- public HttpConnection(ILogger logger, Socket socket, HttpEndPointListener epl, bool secure,
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- X509Certificate cert, ICryptoProvider cryptoProvider, IStreamHelper streamHelper, IFileSystem fileSystem,
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- IEnvironmentInfo environment)
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- {
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- _logger = logger;
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- this._socket = socket;
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- this._epl = epl;
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- this.secure = secure;
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- this.cert = cert;
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- _cryptoProvider = cryptoProvider;
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- _streamHelper = streamHelper;
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- _fileSystem = fileSystem;
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- _environment = environment;
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-
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- if (secure == false)
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- {
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- _stream = new SocketStream(_socket, false);
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- }
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- else
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- {
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- ssl_stream = new SslStream(new SocketStream(_socket, false), false, (t, c, ch, e) =>
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- {
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- if (c == null)
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- {
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- return true;
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- }
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-
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- //var c2 = c as X509Certificate2;
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- //if (c2 == null)
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- //{
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- // c2 = new X509Certificate2(c.GetRawCertData());
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- //}
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-
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- //_clientCert = c2;
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- //_clientCertErrors = new int[] { (int)e };
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- return true;
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- });
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-
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- _stream = ssl_stream;
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- }
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- }
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-
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- public Stream Stream => _stream;
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-
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- public async Task Init()
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- {
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- if (ssl_stream != null)
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- {
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- var enableAsync = true;
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- if (enableAsync)
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- {
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- await ssl_stream.AuthenticateAsServerAsync(cert, false, (SslProtocols)ServicePointManager.SecurityProtocol, false).ConfigureAwait(false);
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- }
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- else
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- {
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- ssl_stream.AuthenticateAsServer(cert, false, (SslProtocols)ServicePointManager.SecurityProtocol, false);
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- }
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- }
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-
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- InitInternal();
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- }
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-
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- private void InitInternal()
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- {
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- _contextBound = false;
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- _requestStream = null;
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- _responseStream = null;
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- _prefix = null;
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- _chunked = false;
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- _memoryStream = new MemoryStream();
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- _position = 0;
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- _inputState = InputState.RequestLine;
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- _lineState = LineState.None;
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- _context = new HttpListenerContext(this);
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- }
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-
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- public bool IsClosed => (_socket == null);
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-
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- public int Reuses => _reuses;
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-
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- public IPEndPoint LocalEndPoint
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- {
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- get
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- {
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- if (local_ep != null)
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- return local_ep;
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-
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- local_ep = (IPEndPoint)_socket.LocalEndPoint;
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- return local_ep;
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- }
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- }
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-
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- public IPEndPoint RemoteEndPoint => _socket.RemoteEndPoint as IPEndPoint;
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-
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- public bool IsSecure => secure;
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-
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- public ListenerPrefix Prefix
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- {
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- get => _prefix;
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- set => _prefix = value;
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- }
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-
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- private void OnTimeout(object unused)
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- {
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- //_logger.LogInformation("HttpConnection timer fired");
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- CloseSocket();
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- Unbind();
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- }
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-
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- public void BeginReadRequest()
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- {
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- if (_buffer == null)
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- {
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- _buffer = new byte[BufferSize];
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- }
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-
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- try
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- {
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- _stream.BeginRead(_buffer, 0, BufferSize, s_onreadCallback, this);
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- }
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- catch
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- {
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- CloseSocket();
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- Unbind();
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- }
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- }
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-
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- public HttpRequestStream GetRequestStream(bool chunked, long contentlength)
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- {
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- if (_requestStream == null)
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- {
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- byte[] buffer = _memoryStream.GetBuffer();
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- int length = (int)_memoryStream.Length;
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- _memoryStream = null;
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- if (chunked)
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- {
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- _chunked = true;
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- //_context.Response.SendChunked = true;
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- _requestStream = new ChunkedInputStream(_context, _stream, buffer, _position, length - _position);
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- }
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- else
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- {
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- _requestStream = new HttpRequestStream(_stream, buffer, _position, length - _position, contentlength);
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- }
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- }
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- return _requestStream;
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- }
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-
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- public HttpResponseStream GetResponseStream(bool isExpect100Continue = false)
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- {
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- // TODO: can we get this _stream before reading the input?
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- if (_responseStream == null)
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- {
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- var supportsDirectSocketAccess = !_context.Response.SendChunked && !isExpect100Continue && !secure;
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-
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- _responseStream = new HttpResponseStream(_stream, _context.Response, false, _streamHelper, _socket, supportsDirectSocketAccess, _environment, _fileSystem, _logger);
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- }
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- return _responseStream;
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- }
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-
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- private static void OnRead(IAsyncResult ares)
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- {
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- var cnc = (HttpConnection)ares.AsyncState;
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- cnc.OnReadInternal(ares);
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- }
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-
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- private void OnReadInternal(IAsyncResult ares)
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- {
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- int nread = -1;
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- try
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- {
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- nread = _stream.EndRead(ares);
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- _memoryStream.Write(_buffer, 0, nread);
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- if (_memoryStream.Length > 32768)
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- {
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- SendError("Bad Request", 400);
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- Close(true);
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- return;
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- }
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- }
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- catch
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- {
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- if (_memoryStream != null && _memoryStream.Length > 0)
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- {
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- SendError();
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- }
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-
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- if (_socket != null)
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- {
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- CloseSocket();
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- Unbind();
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- }
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- return;
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- }
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-
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- if (nread == 0)
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- {
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- CloseSocket();
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- Unbind();
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- return;
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- }
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-
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- if (ProcessInput(_memoryStream))
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- {
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- if (!_context.HaveError)
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- _context.Request.FinishInitialization();
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-
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- if (_context.HaveError)
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- {
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- SendError();
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- Close(true);
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- return;
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- }
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-
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- if (!_epl.BindContext(_context))
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- {
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- const int NotFoundErrorCode = 404;
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- SendError(HttpStatusDescription.Get(NotFoundErrorCode), NotFoundErrorCode);
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- Close(true);
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- return;
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- }
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- HttpListener listener = _epl.Listener;
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- if (_lastListener != listener)
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- {
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- RemoveConnection();
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- listener.AddConnection(this);
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- _lastListener = listener;
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- }
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-
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- _contextBound = true;
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- listener.RegisterContext(_context);
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- return;
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- }
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- _stream.BeginRead(_buffer, 0, BufferSize, s_onreadCallback, this);
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- }
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-
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- private void RemoveConnection()
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- {
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- if (_lastListener == null)
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- _epl.RemoveConnection(this);
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- else
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- _lastListener.RemoveConnection(this);
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- }
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-
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- private enum InputState
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- {
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- RequestLine,
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- Headers
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- }
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-
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- private enum LineState
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- {
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- None,
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- CR,
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- LF
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- }
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-
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- InputState _inputState = InputState.RequestLine;
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- LineState _lineState = LineState.None;
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- int _position;
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-
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- // true -> done processing
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- // false -> need more input
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- private bool ProcessInput(MemoryStream ms)
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- {
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- byte[] buffer = ms.GetBuffer();
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- int len = (int)ms.Length;
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- int used = 0;
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- string line;
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-
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- while (true)
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- {
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- if (_context.HaveError)
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- return true;
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-
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- if (_position >= len)
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- break;
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-
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- try
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- {
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- line = ReadLine(buffer, _position, len - _position, ref used);
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- _position += used;
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- }
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- catch
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- {
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- _context.ErrorMessage = "Bad request";
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- _context.ErrorStatus = 400;
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- return true;
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- }
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-
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- if (line == null)
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- break;
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-
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- if (line == "")
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- {
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- if (_inputState == InputState.RequestLine)
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- continue;
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- _currentLine = null;
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- ms = null;
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- return true;
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- }
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-
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- if (_inputState == InputState.RequestLine)
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- {
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- _context.Request.SetRequestLine(line);
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- _inputState = InputState.Headers;
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- }
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- else
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- {
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- try
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- {
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- _context.Request.AddHeader(line);
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- }
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- catch (Exception e)
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- {
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- _context.ErrorMessage = e.Message;
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- _context.ErrorStatus = 400;
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- return true;
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- }
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- }
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- }
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-
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- if (used == len)
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- {
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- ms.SetLength(0);
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- _position = 0;
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- }
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- return false;
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- }
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-
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- private string ReadLine(byte[] buffer, int offset, int len, ref int used)
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- {
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- if (_currentLine == null)
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- _currentLine = new StringBuilder(128);
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- int last = offset + len;
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- used = 0;
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- for (int i = offset; i < last && _lineState != LineState.LF; i++)
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- {
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- used++;
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- byte b = buffer[i];
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- if (b == 13)
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- {
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- _lineState = LineState.CR;
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- }
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- else if (b == 10)
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- {
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- _lineState = LineState.LF;
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- }
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- else
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- {
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- _currentLine.Append((char)b);
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- }
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- }
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-
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- string result = null;
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- if (_lineState == LineState.LF)
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- {
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- _lineState = LineState.None;
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- result = _currentLine.ToString();
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- _currentLine.Length = 0;
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- }
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-
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- return result;
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- }
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-
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- public void SendError(string msg, int status)
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- {
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- try
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- {
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- HttpListenerResponse response = _context.Response;
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- response.StatusCode = status;
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- response.ContentType = "text/html";
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- string description = HttpStatusDescription.Get(status);
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- string str;
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- if (msg != null)
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- str = string.Format("<h1>{0} ({1})</h1>", description, msg);
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- else
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- str = string.Format("<h1>{0}</h1>", description);
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-
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- byte[] error = Encoding.UTF8.GetBytes(str);
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- response.Close(error, false);
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- }
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- catch
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- {
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- // response was already closed
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- }
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- }
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-
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- public void SendError()
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- {
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- SendError(_context.ErrorMessage, _context.ErrorStatus);
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- }
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-
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- private void Unbind()
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- {
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- if (_contextBound)
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- {
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- _epl.UnbindContext(_context);
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- _contextBound = false;
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- }
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- }
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-
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- public void Close()
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- {
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- Close(false);
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- }
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-
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- private void CloseSocket()
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- {
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- if (_socket == null)
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- return;
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-
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- try
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- {
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- _socket.Close();
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- }
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- catch { }
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- finally
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- {
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- _socket = null;
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- }
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-
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- RemoveConnection();
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- }
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-
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- internal void Close(bool force)
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- {
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- if (_socket != null)
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- {
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- Stream st = GetResponseStream();
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- if (st != null)
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- st.Close();
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-
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- _responseStream = null;
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- }
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-
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- if (_socket != null)
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- {
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- force |= !_context.Request.KeepAlive;
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- if (!force)
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- {
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- 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
|
|
|
- {
|
|
|
- s?.Shutdown(SocketShutdown.Both);
|
|
|
- }
|
|
|
- catch
|
|
|
- {
|
|
|
- }
|
|
|
- finally
|
|
|
- {
|
|
|
- try
|
|
|
- {
|
|
|
- s?.Close();
|
|
|
- }
|
|
|
- catch { }
|
|
|
- }
|
|
|
- Unbind();
|
|
|
- RemoveConnection();
|
|
|
- return;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-}
|
Bond-009