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Merge pull request #847 from Bond-009/async 

Make websockets code async
This commit is contained in:
Vasily 2019-02-20 15:03:42 +03:00 committed by GitHub
parent 60df855b26 fca226bdfd
commit 8ef41020d9
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 288 additions and 273 deletions
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7
Jellyfin.Server/SocketSharp/SharpWebSocket.cs
View File

@ -44,10 +44,11 @@ namespace Jellyfin.Server.SocketSharp
socket.OnMessage += OnSocketMessage;
socket.OnClose += OnSocketClose;
socket.OnError += OnSocketError;
WebSocket.ConnectAsServer();
}
public Task ConnectAsServerAsync()
=> WebSocket.ConnectAsServer();
public Task StartReceive()
{
return _taskCompletionSource.Task;
@ -133,7 +134,7 @@ namespace Jellyfin.Server.SocketSharp
_cancellationTokenSource.Cancel();
WebSocket.Close();
WebSocket.CloseAsync().GetAwaiter().GetResult();
}
_disposed = true;

26
Jellyfin.Server/SocketSharp/WebSocketSharpListener.cs
View File

@ -69,7 +69,7 @@ namespace Jellyfin.Server.SocketSharp
{
if (_listener == null)
{
_listener = new HttpListener(_logger, _cryptoProvider, _socketFactory, _networkManager, _streamHelper, _fileSystem, _environment);
_listener = new HttpListener(_logger, _cryptoProvider, _socketFactory, _streamHelper, _fileSystem, _environment);
}
_listener.EnableDualMode = _enableDualMode;
@ -79,22 +79,14 @@ namespace Jellyfin.Server.SocketSharp
_listener.LoadCert(_certificate);
}
foreach (var prefix in urlPrefixes)
{
_logger.LogInformation("Adding HttpListener prefix " + prefix);
_listener.Prefixes.Add(prefix);
}
_logger.LogInformation("Adding HttpListener prefixes {Prefixes}", urlPrefixes);
_listener.Prefixes.AddRange(urlPrefixes);
_listener.OnContext = ProcessContext;
_listener.OnContext = async c => await InitTask(c, _disposeCancellationToken).ConfigureAwait(false);
_listener.Start();
}
private void ProcessContext(HttpListenerContext context)
{
_ = Task.Run(async () => await InitTask(context, _disposeCancellationToken).ConfigureAwait(false));
}
private static void LogRequest(ILogger logger, HttpListenerRequest request)
{
var url = request.Url.ToString();
@ -151,10 +143,7 @@ namespace Jellyfin.Server.SocketSharp
Endpoint = endpoint
};
if (WebSocketConnecting != null)
{
WebSocketConnecting(connectingArgs);
}
WebSocketConnecting?.Invoke(connectingArgs);
if (connectingArgs.AllowConnection)
{
@ -165,6 +154,7 @@ namespace Jellyfin.Server.SocketSharp
if (WebSocketConnected != null)
{
var socket = new SharpWebSocket(webSocketContext.WebSocket, _logger);
await socket.ConnectAsServerAsync().ConfigureAwait(false);
WebSocketConnected(new WebSocketConnectEventArgs
{
@ -174,7 +164,7 @@ namespace Jellyfin.Server.SocketSharp
Endpoint = endpoint
});
await ReceiveWebSocket(ctx, socket).ConfigureAwait(false);
await ReceiveWebSocketAsync(ctx, socket).ConfigureAwait(false);
}
}
else
@ -192,7 +182,7 @@ namespace Jellyfin.Server.SocketSharp
}
}
private async Task ReceiveWebSocket(HttpListenerContext ctx, SharpWebSocket socket)
private async Task ReceiveWebSocketAsync(HttpListenerContext ctx, SharpWebSocket socket)
{
try
{

69
SocketHttpListener/Ext.cs
View File

@ -74,18 +74,20 @@ namespace SocketHttpListener
}
}
private static byte[] readBytes(this Stream stream, byte[] buffer, int offset, int length)
private static async Task<byte[]> ReadBytesAsync(this Stream stream, byte[] buffer, int offset, int length)
{
var len = stream.Read(buffer, offset, length);
var len = await stream.ReadAsync(buffer, offset, length).ConfigureAwait(false);
if (len < 1)
return buffer.SubArray(0, offset);
var tmp = 0;
while (len < length)
{
tmp = stream.Read(buffer, offset + len, length - len);
tmp = await stream.ReadAsync(buffer, offset + len, length - len).ConfigureAwait(false);
if (tmp < 1)
{
break;
}
len += tmp;
}
@ -95,10 +97,9 @@ namespace SocketHttpListener
: buffer;
}
private static bool readBytes(
this Stream stream, byte[] buffer, int offset, int length, Stream dest)
private static async Task<bool> ReadBytesAsync(this Stream stream, byte[] buffer, int offset, int length, Stream dest)
{
var bytes = stream.readBytes(buffer, offset, length);
var bytes = await stream.ReadBytesAsync(buffer, offset, length).ConfigureAwait(false);
var len = bytes.Length;
dest.Write(bytes, 0, len);
@ -109,16 +110,16 @@ namespace SocketHttpListener
#region Internal Methods
internal static byte[] Append(this ushort code, string reason)
internal static async Task<byte[]> AppendAsync(this ushort code, string reason)
{
using (var buffer = new MemoryStream())
{
var tmp = code.ToByteArrayInternally(ByteOrder.Big);
buffer.Write(tmp, 0, 2);
await buffer.WriteAsync(tmp, 0, 2).ConfigureAwait(false);
if (reason != null && reason.Length > 0)
{
tmp = Encoding.UTF8.GetBytes(reason);
buffer.Write(tmp, 0, tmp.Length);
await buffer.WriteAsync(tmp, 0, tmp.Length).ConfigureAwait(false);
}
return buffer.ToArray();
@ -331,12 +332,10 @@ namespace SocketHttpListener
: string.Format("\"{0}\"", value.Replace("\"", "\\\""));
}
internal static byte[] ReadBytes(this Stream stream, int length)
{
return stream.readBytes(new byte[length], 0, length);
}
internal static Task<byte[]> ReadBytesAsync(this Stream stream, int length)
=> stream.ReadBytesAsync(new byte[length], 0, length);
internal static byte[] ReadBytes(this Stream stream, long length, int bufferLength)
internal static async Task<byte[]> ReadBytesAsync(this Stream stream, long length, int bufferLength)
{
using (var result = new MemoryStream())
{
@ -347,7 +346,7 @@ namespace SocketHttpListener
var end = false;
for (long i = 0; i < count; i++)
{
if (!stream.readBytes(buffer, 0, bufferLength, result))
if (!await stream.ReadBytesAsync(buffer, 0, bufferLength, result).ConfigureAwait(false))
{
end = true;
break;
@ -355,26 +354,14 @@ namespace SocketHttpListener
}
if (!end && rem > 0)
stream.readBytes(new byte[rem], 0, rem, result);
{
await stream.ReadBytesAsync(new byte[rem], 0, rem, result).ConfigureAwait(false);
}
return result.ToArray();
}
}
internal static async Task<byte[]> ReadBytesAsync(this Stream stream, int length)
{
var buffer = new byte[length];
var len = await stream.ReadAsync(buffer, 0, length).ConfigureAwait(false);
var bytes = len < 1
? new byte[0]
: len < length
? stream.readBytes(buffer, len, length - len)
: buffer;
return bytes;
}
internal static string RemovePrefix(this string value, params string[] prefixes)
{
var i = 0;
@ -493,19 +480,16 @@ namespace SocketHttpListener
return string.Format("{0}; {1}", m, parameters.ToString("; "));
}
internal static List<TSource> ToList<TSource>(this IEnumerable<TSource> source)
{
return new List<TSource>(source);
}
internal static ushort ToUInt16(this byte[] src, ByteOrder srcOrder)
{
return BitConverter.ToUInt16(src.ToHostOrder(srcOrder), 0);
src.ToHostOrder(srcOrder);
return BitConverter.ToUInt16(src, 0);
}
internal static ulong ToUInt64(this byte[] src, ByteOrder srcOrder)
{
return BitConverter.ToUInt64(src.ToHostOrder(srcOrder), 0);
src.ToHostOrder(srcOrder);
return BitConverter.ToUInt64(src, 0);
}
internal static string TrimEndSlash(this string value)
@ -852,14 +836,17 @@ namespace SocketHttpListener
/// <exception cref="ArgumentNullException">
/// <paramref name="src"/> is <see langword="null"/>.
/// </exception>
public static byte[] ToHostOrder(this byte[] src, ByteOrder srcOrder)
public static void ToHostOrder(this byte[] src, ByteOrder srcOrder)
{
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
return src.Length > 1 && !srcOrder.IsHostOrder()
? src.Reverse()
: src;
if (src.Length > 1 && !srcOrder.IsHostOrder())
{
Array.Reverse(src);
}
}
/// <summary>

43
SocketHttpListener/Net/HttpListener.cs
View File

@ -3,7 +3,6 @@ using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Cryptography;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Net;
@ -18,47 +17,55 @@ namespace SocketHttpListener.Net
internal ISocketFactory SocketFactory { get; private set; }
internal IFileSystem FileSystem { get; private set; }
internal IStreamHelper StreamHelper { get; private set; }
internal INetworkManager NetworkManager { get; private set; }
internal IEnvironmentInfo EnvironmentInfo { get; private set; }
public bool EnableDualMode { get; set; }
AuthenticationSchemes auth_schemes;
HttpListenerPrefixCollection prefixes;
AuthenticationSchemeSelector auth_selector;
string realm;
bool unsafe_ntlm_auth;
bool listening;
bool disposed;
private AuthenticationSchemes auth_schemes;
private HttpListenerPrefixCollection prefixes;
private AuthenticationSchemeSelector auth_selector;
private string realm;
private bool unsafe_ntlm_auth;
private bool listening;
private bool disposed;
Dictionary<HttpListenerContext, HttpListenerContext> registry; // Dictionary<HttpListenerContext,HttpListenerContext>
Dictionary<HttpConnection, HttpConnection> connections;
private Dictionary<HttpListenerContext, HttpListenerContext> registry;
private Dictionary<HttpConnection, HttpConnection> connections;
private ILogger _logger;
private X509Certificate _certificate;
public Action<HttpListenerContext> OnContext { get; set; }
public HttpListener(ILogger logger, ICryptoProvider cryptoProvider, ISocketFactory socketFactory,
INetworkManager networkManager, IStreamHelper streamHelper, IFileSystem fileSystem,
public HttpListener(
ILogger logger,
ICryptoProvider cryptoProvider,
ISocketFactory socketFactory,
IStreamHelper streamHelper,
IFileSystem fileSystem,
IEnvironmentInfo environmentInfo)
{
_logger = logger;
CryptoProvider = cryptoProvider;
SocketFactory = socketFactory;
NetworkManager = networkManager;
StreamHelper = streamHelper;
FileSystem = fileSystem;
EnvironmentInfo = environmentInfo;
prefixes = new HttpListenerPrefixCollection(logger, this);
registry = new Dictionary<HttpListenerContext, HttpListenerContext>();
connections = new Dictionary<HttpConnection, HttpConnection>();
auth_schemes = AuthenticationSchemes.Anonymous;
}
public HttpListener(ILogger logger, X509Certificate certificate, ICryptoProvider cryptoProvider,
ISocketFactory socketFactory, INetworkManager networkManager, IStreamHelper streamHelper,
IFileSystem fileSystem, IEnvironmentInfo environmentInfo)
: this(logger, cryptoProvider, socketFactory, networkManager, streamHelper, fileSystem, environmentInfo)
public HttpListener(
ILogger logger,
X509Certificate certificate,
ICryptoProvider cryptoProvider,
ISocketFactory socketFactory,
IStreamHelper streamHelper,
IFileSystem fileSystem,
IEnvironmentInfo environmentInfo)
: this(logger, cryptoProvider, socketFactory, streamHelper, fileSystem, environmentInfo)
{
_certificate = certificate;
}

79
SocketHttpListener/Net/HttpListenerPrefixCollection.cs
View File

@ -7,18 +7,18 @@ namespace SocketHttpListener.Net
{
public class HttpListenerPrefixCollection : ICollection<string>, IEnumerable<string>, IEnumerable
{
List<string> prefixes = new List<string>();
HttpListener listener;
private List<string> _prefixes = new List<string>();
private HttpListener _listener;
private ILogger _logger;
internal HttpListenerPrefixCollection(ILogger logger, HttpListener listener)
{
_logger = logger;
this.listener = listener;
_listener = listener;
}
public int Count => prefixes.Count;
public int Count => _prefixes.Count;
public bool IsReadOnly => false;
@ -26,61 +26,90 @@ namespace SocketHttpListener.Net
public void Add(string uriPrefix)
{
listener.CheckDisposed();
_listener.CheckDisposed();
//ListenerPrefix.CheckUri(uriPrefix);
if (prefixes.Contains(uriPrefix))
if (_prefixes.Contains(uriPrefix))
{
return;
}
prefixes.Add(uriPrefix);
if (listener.IsListening)
HttpEndPointManager.AddPrefix(_logger, uriPrefix, listener);
_prefixes.Add(uriPrefix);
if (_listener.IsListening)
{
HttpEndPointManager.AddPrefix(_logger, uriPrefix, _listener);
}
}
public void AddRange(IEnumerable<string> uriPrefixes)
{
_listener.CheckDisposed();
foreach (var uriPrefix in uriPrefixes)
{
if (_prefixes.Contains(uriPrefix))
{
continue;
}
_prefixes.Add(uriPrefix);
if (_listener.IsListening)
{
HttpEndPointManager.AddPrefix(_logger, uriPrefix, _listener);
}
}
}
public void Clear()
{
listener.CheckDisposed();
prefixes.Clear();
if (listener.IsListening)
HttpEndPointManager.RemoveListener(_logger, listener);
_listener.CheckDisposed();
_prefixes.Clear();
if (_listener.IsListening)
{
HttpEndPointManager.RemoveListener(_logger, _listener);
}
}
public bool Contains(string uriPrefix)
{
listener.CheckDisposed();
return prefixes.Contains(uriPrefix);
_listener.CheckDisposed();
return _prefixes.Contains(uriPrefix);
}
public void CopyTo(string[] array, int offset)
{
listener.CheckDisposed();
prefixes.CopyTo(array, offset);
_listener.CheckDisposed();
_prefixes.CopyTo(array, offset);
}
public void CopyTo(Array array, int offset)
{
listener.CheckDisposed();
((ICollection)prefixes).CopyTo(array, offset);
_listener.CheckDisposed();
((ICollection)_prefixes).CopyTo(array, offset);
}
public IEnumerator<string> GetEnumerator()
{
return prefixes.GetEnumerator();
return _prefixes.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return prefixes.GetEnumerator();
return _prefixes.GetEnumerator();
}
public bool Remove(string uriPrefix)
{
listener.CheckDisposed();
_listener.CheckDisposed();
if (uriPrefix == null)
{
throw new ArgumentNullException(nameof(uriPrefix));
}
bool result = prefixes.Remove(uriPrefix);
if (result && listener.IsListening)
HttpEndPointManager.RemovePrefix(_logger, uriPrefix, listener);
bool result = _prefixes.Remove(uriPrefix);
if (result && _listener.IsListening)
{
HttpEndPointManager.RemovePrefix(_logger, uriPrefix, _listener);
}
return result;
}

290
SocketHttpListener/WebSocket.cs
View File

@ -30,9 +30,9 @@ namespace SocketHttpListener
private CookieCollection _cookies;
private AutoResetEvent _exitReceiving;
private object _forConn;
private object _forEvent;
private readonly SemaphoreSlim _forEvent = new SemaphoreSlim(1, 1);
private object _forMessageEventQueue;
private object _forSend;
private readonly SemaphoreSlim _forSend = new SemaphoreSlim(1, 1);
private const string _guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
private Queue<MessageEventArgs> _messageEventQueue;
private string _protocol;
@ -109,12 +109,15 @@ namespace SocketHttpListener
#region Private Methods
private void close(CloseStatusCode code, string reason, bool wait)
private async Task CloseAsync(CloseStatusCode code, string reason, bool wait)
{
close(new PayloadData(((ushort)code).Append(reason)), !code.IsReserved(), wait);
await CloseAsync(new PayloadData(
await ((ushort)code).AppendAsync(reason).ConfigureAwait(false)),
!code.IsReserved(),
wait).ConfigureAwait(false);
}
private void close(PayloadData payload, bool send, bool wait)
private async Task CloseAsync(PayloadData payload, bool send, bool wait)
{
lock (_forConn)
{
@ -126,11 +129,12 @@ namespace SocketHttpListener
_readyState = WebSocketState.CloseSent;
}
var e = new CloseEventArgs(payload);
e.WasClean =
closeHandshake(
var e = new CloseEventArgs(payload)
{
WasClean = await CloseHandshakeAsync(
send ? WebSocketFrame.CreateCloseFrame(Mask.Unmask, payload).ToByteArray() : null,
wait ? 1000 : 0);
wait ? 1000 : 0).ConfigureAwait(false)
};
_readyState = WebSocketState.Closed;
try
@ -143,9 +147,9 @@ namespace SocketHttpListener
}
}
private bool closeHandshake(byte[] frameAsBytes, int millisecondsTimeout)
private async Task<bool> CloseHandshakeAsync(byte[] frameAsBytes, int millisecondsTimeout)
{
var sent = frameAsBytes != null && writeBytes(frameAsBytes);
var sent = frameAsBytes != null && await WriteBytesAsync(frameAsBytes).ConfigureAwait(false);
var received =
millisecondsTimeout == 0 ||
(sent && _exitReceiving != null && _exitReceiving.WaitOne(millisecondsTimeout));
@ -189,11 +193,11 @@ namespace SocketHttpListener
_context = null;
}
private bool concatenateFragmentsInto(Stream dest)
private async Task<bool> ConcatenateFragmentsIntoAsync(Stream dest)
{
while (true)
{
var frame = WebSocketFrame.Read(_stream, true);
var frame = await WebSocketFrame.ReadAsync(_stream, true).ConfigureAwait(false);
if (frame.IsFinal)
{
/* FINAL */
@ -221,7 +225,7 @@ namespace SocketHttpListener
// CLOSE
if (frame.IsClose)
return processCloseFrame(frame);
return await ProcessCloseFrameAsync(frame).ConfigureAwait(false);
}
else
{
@ -236,10 +240,10 @@ namespace SocketHttpListener
}
// ?
return processUnsupportedFrame(
return await ProcessUnsupportedFrameAsync(
frame,
CloseStatusCode.IncorrectData,
"An incorrect data has been received while receiving fragmented data.");
"An incorrect data has been received while receiving fragmented data.").ConfigureAwait(false);
}
return true;
@ -299,44 +303,42 @@ namespace SocketHttpListener
_compression = CompressionMethod.None;
_cookies = new CookieCollection();
_forConn = new object();
_forEvent = new object();
_forSend = new object();
_messageEventQueue = new Queue<MessageEventArgs>();
_forMessageEventQueue = ((ICollection)_messageEventQueue).SyncRoot;
_readyState = WebSocketState.Connecting;
}
private void open()
private async Task OpenAsync()
{
try
{
startReceiving();
lock (_forEvent)
{
try
{
if (OnOpen != null)
{
OnOpen(this, EventArgs.Empty);
}
}
catch (Exception ex)
{
processException(ex, "An exception has occurred while OnOpen.");
}
}
}
catch (Exception ex)
{
processException(ex, "An exception has occurred while opening.");
await ProcessExceptionAsync(ex, "An exception has occurred while opening.").ConfigureAwait(false);
}
await _forEvent.WaitAsync().ConfigureAwait(false);
try
{
OnOpen?.Invoke(this, EventArgs.Empty);
}
catch (Exception ex)
{
await ProcessExceptionAsync(ex, "An exception has occurred while OnOpen.").ConfigureAwait(false);
}
finally
{
_forEvent.Release();
}
}
private bool processCloseFrame(WebSocketFrame frame)
private async Task<bool> ProcessCloseFrameAsync(WebSocketFrame frame)
{
var payload = frame.PayloadData;
close(payload, !payload.ContainsReservedCloseStatusCode, false);
await CloseAsync(payload, !payload.ContainsReservedCloseStatusCode, false).ConfigureAwait(false);
return false;
}
@ -352,7 +354,7 @@ namespace SocketHttpListener
return true;
}
private void processException(Exception exception, string message)
private async Task ProcessExceptionAsync(Exception exception, string message)
{
var code = CloseStatusCode.Abnormal;
var reason = message;
@ -365,25 +367,31 @@ namespace SocketHttpListener
error(message ?? code.GetMessage(), exception);
if (_readyState == WebSocketState.Connecting)
Close(HttpStatusCode.BadRequest);
{
await CloseAsync(HttpStatusCode.BadRequest).ConfigureAwait(false);
}
else
close(code, reason ?? code.GetMessage(), false);
{
await CloseAsync(code, reason ?? code.GetMessage(), false).ConfigureAwait(false);
}
}
private bool processFragmentedFrame(WebSocketFrame frame)
private Task<bool> ProcessFragmentedFrameAsync(WebSocketFrame frame)
{
return frame.IsContinuation // Not first fragment
? true
: processFragments(frame);
? Task.FromResult(true)
: ProcessFragmentsAsync(frame);
}
private bool processFragments(WebSocketFrame first)
private async Task<bool> ProcessFragmentsAsync(WebSocketFrame first)
{
using (var buff = new MemoryStream())
{
buff.WriteBytes(first.PayloadData.ApplicationData);
if (!concatenateFragmentsInto(buff))
if (!await ConcatenateFragmentsIntoAsync(buff).ConfigureAwait(false))
{
return false;
}
byte[] data;
if (_compression != CompressionMethod.None)
@ -412,36 +420,38 @@ namespace SocketHttpListener
return true;
}
private bool processUnsupportedFrame(WebSocketFrame frame, CloseStatusCode code, string reason)
private async Task<bool> ProcessUnsupportedFrameAsync(WebSocketFrame frame, CloseStatusCode code, string reason)
{
processException(new WebSocketException(code, reason), null);
await ProcessExceptionAsync(new WebSocketException(code, reason), null).ConfigureAwait(false);
return false;
}
private bool processWebSocketFrame(WebSocketFrame frame)
private Task<bool> ProcessWebSocketFrameAsync(WebSocketFrame frame)
{
// TODO: @bond change to if/else chain
return frame.IsCompressed && _compression == CompressionMethod.None
? processUnsupportedFrame(
? ProcessUnsupportedFrameAsync(
frame,
CloseStatusCode.IncorrectData,
"A compressed data has been received without available decompression method.")
: frame.IsFragmented
? processFragmentedFrame(frame)
? ProcessFragmentedFrameAsync(frame)
: frame.IsData
? processDataFrame(frame)
? Task.FromResult(processDataFrame(frame))
: frame.IsPing
? processPingFrame(frame)
? Task.FromResult(processPingFrame(frame))
: frame.IsPong
? processPongFrame(frame)
? Task.FromResult(processPongFrame(frame))
: frame.IsClose
? processCloseFrame(frame)
: processUnsupportedFrame(frame, CloseStatusCode.PolicyViolation, null);
? ProcessCloseFrameAsync(frame)
: ProcessUnsupportedFrameAsync(frame, CloseStatusCode.PolicyViolation, null);
}
private bool send(Opcode opcode, Stream stream)
private async Task<bool> SendAsync(Opcode opcode, Stream stream)
{
lock (_forSend)
await _forSend.WaitAsync().ConfigureAwait(false);
try
{
var src = stream;
var compressed = false;
@ -454,7 +464,7 @@ namespace SocketHttpListener
compressed = true;
}
sent = send(opcode, Mask.Unmask, stream, compressed);
sent = await SendAsync(opcode, Mask.Unmask, stream, compressed).ConfigureAwait(false);
if (!sent)
error("Sending a data has been interrupted.");
}
@ -472,16 +482,20 @@ namespace SocketHttpListener
return sent;
}
finally
{
_forSend.Release();
}
}
private bool send(Opcode opcode, Mask mask, Stream stream, bool compressed)
private async Task<bool> SendAsync(Opcode opcode, Mask mask, Stream stream, bool compressed)
{
var len = stream.Length;
/* Not fragmented */
if (len == 0)
return send(Fin.Final, opcode, mask, new byte[0], compressed);
return await SendAsync(Fin.Final, opcode, mask, new byte[0], compressed).ConfigureAwait(false);
var quo = len / FragmentLength;
var rem = (int)(len % FragmentLength);
@ -490,26 +504,26 @@ namespace SocketHttpListener
if (quo == 0)
{
buff = new byte[rem];
return stream.Read(buff, 0, rem) == rem &&
send(Fin.Final, opcode, mask, buff, compressed);
return await stream.ReadAsync(buff, 0, rem).ConfigureAwait(false) == rem &&
await SendAsync(Fin.Final, opcode, mask, buff, compressed).ConfigureAwait(false);
}
buff = new byte[FragmentLength];
if (quo == 1 && rem == 0)
return stream.Read(buff, 0, FragmentLength) == FragmentLength &&
send(Fin.Final, opcode, mask, buff, compressed);
return await stream.ReadAsync(buff, 0, FragmentLength).ConfigureAwait(false) == FragmentLength &&
await SendAsync(Fin.Final, opcode, mask, buff, compressed).ConfigureAwait(false);
/* Send fragmented */
// Begin
if (stream.Read(buff, 0, FragmentLength) != FragmentLength ||
!send(Fin.More, opcode, mask, buff, compressed))
if (await stream.ReadAsync(buff, 0, FragmentLength).ConfigureAwait(false) != FragmentLength ||
!await SendAsync(Fin.More, opcode, mask, buff, compressed).ConfigureAwait(false))
return false;
var n = rem == 0 ? quo - 2 : quo - 1;
for (long i = 0; i < n; i++)
if (stream.Read(buff, 0, FragmentLength) != FragmentLength ||
!send(Fin.More, Opcode.Cont, mask, buff, compressed))
if (await stream.ReadAsync(buff, 0, FragmentLength).ConfigureAwait(false) != FragmentLength ||
!await SendAsync(Fin.More, Opcode.Cont, mask, buff, compressed).ConfigureAwait(false))
return false;
// End
@ -518,98 +532,88 @@ namespace SocketHttpListener
else
buff = new byte[rem];
return stream.Read(buff, 0, rem) == rem &&
send(Fin.Final, Opcode.Cont, mask, buff, compressed);
return await stream.ReadAsync(buff, 0, rem).ConfigureAwait(false) == rem &&
await SendAsync(Fin.Final, Opcode.Cont, mask, buff, compressed).ConfigureAwait(false);
}
private bool send(Fin fin, Opcode opcode, Mask mask, byte[] data, bool compressed)
private Task<bool> SendAsync(Fin fin, Opcode opcode, Mask mask, byte[] data, bool compressed)
{
lock (_forConn)
{
if (_readyState != WebSocketState.Open)
{
return false;
return Task.FromResult(false);
}
return writeBytes(
return WriteBytesAsync(
WebSocketFrame.CreateWebSocketFrame(fin, opcode, mask, data, compressed).ToByteArray());
}
}
private Task sendAsync(Opcode opcode, Stream stream)
{
var completionSource = new TaskCompletionSource<bool>();
Task.Run(() =>
{
try
{
send(opcode, stream);
completionSource.TrySetResult(true);
}
catch (Exception ex)
{
completionSource.TrySetException(ex);
}
});
return completionSource.Task;
}
// As server
private bool sendHttpResponse(HttpResponse response)
{
return writeBytes(response.ToByteArray());
}
private Task<bool> SendHttpResponseAsync(HttpResponse response)
=> WriteBytesAsync(response.ToByteArray());
private void startReceiving()
{
if (_messageEventQueue.Count > 0)
{
_messageEventQueue.Clear();
}
_exitReceiving = new AutoResetEvent(false);
_receivePong = new AutoResetEvent(false);
Action receive = null;
receive = () => WebSocketFrame.ReadAsync(
_stream,
true,
frame =>
{
if (processWebSocketFrame(frame) && _readyState != WebSocketState.Closed)
{
receive();
receive = async () => await WebSocketFrame.ReadAsync(
_stream,
true,
async frame =>
{
if (await ProcessWebSocketFrameAsync(frame).ConfigureAwait(false) && _readyState != WebSocketState.Closed)
{
receive();
if (!frame.IsData)
return;
if (!frame.IsData)
{
return;
}
lock (_forEvent)
{
try
{
var e = dequeueFromMessageEventQueue();
if (e != null && _readyState == WebSocketState.Open)
OnMessage.Emit(this, e);
}
catch (Exception ex)
{
processException(ex, "An exception has occurred while OnMessage.");
}
}
}
else if (_exitReceiving != null)
{
_exitReceiving.Set();
}
},
ex => processException(ex, "An exception has occurred while receiving a message."));
await _forEvent.WaitAsync().ConfigureAwait(false);
try
{
var e = dequeueFromMessageEventQueue();
if (e != null && _readyState == WebSocketState.Open)
{
OnMessage.Emit(this, e);
}
}
catch (Exception ex)
{
await ProcessExceptionAsync(ex, "An exception has occurred while OnMessage.").ConfigureAwait(false);
}
finally
{
_forEvent.Release();
}
}
else if (_exitReceiving != null)
{
_exitReceiving.Set();
}
},
async ex => await ProcessExceptionAsync(ex, "An exception has occurred while receiving a message.")).ConfigureAwait(false);
receive();
}
private bool writeBytes(byte[] data)
private async Task<bool> WriteBytesAsync(byte[] data)
{
try
{
_stream.Write(data, 0, data.Length);
await _stream.WriteAsync(data, 0, data.Length).ConfigureAwait(false);
return true;
}
catch (Exception)
@ -623,10 +627,10 @@ namespace SocketHttpListener
#region Internal Methods
// As server
internal void Close(HttpResponse response)
internal async Task CloseAsync(HttpResponse response)
{
_readyState = WebSocketState.CloseSent;
sendHttpResponse(response);
await SendHttpResponseAsync(response).ConfigureAwait(false);
closeServerResources();
@ -634,22 +638,20 @@ namespace SocketHttpListener
}
// As server
internal void Close(HttpStatusCode code)
{
Close(createHandshakeCloseResponse(code));
}
internal Task CloseAsync(HttpStatusCode code)
=> CloseAsync(createHandshakeCloseResponse(code));
// As server
public void ConnectAsServer()
public async Task ConnectAsServer()
{
try
{
_readyState = WebSocketState.Open;
open();
await OpenAsync().ConfigureAwait(false);
}
catch (Exception ex)
{
processException(ex, "An exception has occurred while connecting.");
await ProcessExceptionAsync(ex, "An exception has occurred while connecting.").ConfigureAwait(false);
}
}
@ -660,18 +662,18 @@ namespace SocketHttpListener
/// <summary>
/// Closes the WebSocket connection, and releases all associated resources.
/// </summary>
public void Close()
public Task CloseAsync()
{
var msg = _readyState.CheckIfClosable();
if (msg != null)
{
error(msg);
return;
return Task.CompletedTask;
}
var send = _readyState == WebSocketState.Open;
close(new PayloadData(), send, send);
return CloseAsync(new PayloadData(), send, send);
}
/// <summary>
@ -689,11 +691,11 @@ namespace SocketHttpListener
/// <param name="reason">
/// A <see cref="string"/> that represents the reason for the close.
/// </param>
public void Close(CloseStatusCode code, string reason)
public async Task CloseAsync(CloseStatusCode code, string reason)
{
byte[] data = null;
var msg = _readyState.CheckIfClosable() ??
(data = ((ushort)code).Append(reason)).CheckIfValidControlData("reason");
(data = await ((ushort)code).AppendAsync(reason).ConfigureAwait(false)).CheckIfValidControlData("reason");
if (msg != null)
{
@ -703,7 +705,7 @@ namespace SocketHttpListener
}
var send = _readyState == WebSocketState.Open && !code.IsReserved();
close(new PayloadData(data), send, send);
await CloseAsync(new PayloadData(data), send, send).ConfigureAwait(false);
}
/// <summary>
@ -728,7 +730,7 @@ namespace SocketHttpListener
throw new Exception(msg);
}
return sendAsync(Opcode.Binary, new MemoryStream(data));
return SendAsync(Opcode.Binary, new MemoryStream(data));
}
/// <summary>
@ -753,7 +755,7 @@ namespace SocketHttpListener
throw new Exception(msg);
}
return sendAsync(Opcode.Text, new MemoryStream(Encoding.UTF8.GetBytes(data)));
return SendAsync(Opcode.Text, new MemoryStream(Encoding.UTF8.GetBytes(data)));
}
#endregion
@ -768,7 +770,7 @@ namespace SocketHttpListener
/// </remarks>
void IDisposable.Dispose()
{
Close(CloseStatusCode.Away, null);
CloseAsync(CloseStatusCode.Away, null).GetAwaiter().GetResult();
}
#endregion

47
SocketHttpListener/WebSocketFrame.cs
View File

@ -2,6 +2,7 @@ using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
namespace SocketHttpListener
{
@ -177,7 +178,7 @@ namespace SocketHttpListener
return opcode == Opcode.Text || opcode == Opcode.Binary;
}
private static WebSocketFrame read(byte[] header, Stream stream, bool unmask)
private static async Task<WebSocketFrame> ReadAsync(byte[] header, Stream stream, bool unmask)
{
/* Header */
@ -229,7 +230,7 @@ namespace SocketHttpListener
? 2
: 8;
var extPayloadLen = size > 0 ? stream.ReadBytes(size) : new byte[0];
var extPayloadLen = size > 0 ? await stream.ReadBytesAsync(size).ConfigureAwait(false) : Array.Empty<byte>();
if (size > 0 && extPayloadLen.Length != size)
throw new WebSocketException(
"The 'Extended Payload Length' of a frame cannot be read from the data source.");
@ -239,7 +240,7 @@ namespace SocketHttpListener
/* Masking Key */
var masked = mask == Mask.Mask;
var maskingKey = masked ? stream.ReadBytes(4) : new byte[0];
var maskingKey = masked ? await stream.ReadBytesAsync(4).ConfigureAwait(false) : Array.Empty<byte>();
if (masked && maskingKey.Length != 4)
throw new WebSocketException(
"The 'Masking Key' of a frame cannot be read from the data source.");
@ -264,8 +265,8 @@ namespace SocketHttpListener
"The length of 'Payload Data' of a frame is greater than the allowable length.");
data = payloadLen > 126
? stream.ReadBytes((long)len, 1024)
: stream.ReadBytes((int)len);
? await stream.ReadBytesAsync((long)len, 1024).ConfigureAwait(false)
: await stream.ReadBytesAsync((int)len).ConfigureAwait(false);
//if (data.LongLength != (long)len)
// throw new WebSocketException(
@ -273,7 +274,7 @@ namespace SocketHttpListener
}
else
{
data = new byte[0];
data = Array.Empty<byte>();
}
var payload = new PayloadData(data, masked);
@ -281,7 +282,7 @@ namespace SocketHttpListener
{
payload.Mask(maskingKey);
frame._mask = Mask.Unmask;
frame._maskingKey = new byte[0];
frame._maskingKey = Array.Empty<byte>();
}
frame._payloadData = payload;
@ -302,10 +303,10 @@ namespace SocketHttpListener
return new WebSocketFrame(Opcode.Close, mask, payload);
}
internal static WebSocketFrame CreateCloseFrame(Mask mask, CloseStatusCode code, string reason)
internal static async Task<WebSocketFrame> CreateCloseFrameAsync(Mask mask, CloseStatusCode code, string reason)
{
return new WebSocketFrame(
Opcode.Close, mask, new PayloadData(((ushort)code).Append(reason)));
Opcode.Close, mask, new PayloadData(await ((ushort)code).AppendAsync(reason).ConfigureAwait(false)));
}
internal static WebSocketFrame CreatePingFrame(Mask mask)
@ -329,41 +330,39 @@ namespace SocketHttpListener
return new WebSocketFrame(fin, opcode, mask, new PayloadData(data), compressed);
}
internal static WebSocketFrame Read(Stream stream)
{
return Read(stream, true);
}
internal static Task<WebSocketFrame> ReadAsync(Stream stream)
=> ReadAsync(stream, true);
internal static WebSocketFrame Read(Stream stream, bool unmask)
internal static async Task<WebSocketFrame> ReadAsync(Stream stream, bool unmask)
{
var header = stream.ReadBytes(2);
var header = await stream.ReadBytesAsync(2).ConfigureAwait(false);
if (header.Length != 2)
{
throw new WebSocketException(
"The header part of a frame cannot be read from the data source.");
}
return read(header, stream, unmask);
return await ReadAsync(header, stream, unmask).ConfigureAwait(false);
}
internal static async void ReadAsync(
internal static async Task ReadAsync(
Stream stream, bool unmask, Action<WebSocketFrame> completed, Action<Exception> error)
{
try
{
var header = await stream.ReadBytesAsync(2).ConfigureAwait(false);
if (header.Length != 2)
{
throw new WebSocketException(
"The header part of a frame cannot be read from the data source.");
}
var frame = read(header, stream, unmask);
if (completed != null)
completed(frame);
var frame = await ReadAsync(header, stream, unmask).ConfigureAwait(false);
completed?.Invoke(frame);
}
catch (Exception ex)
{
if (error != null)
{
error(ex);
}
error.Invoke(ex);
}
}