786 lines
27 KiB
C#
786 lines
27 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Net;
|
|
using System.Net.Sockets;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
using OSHttpServer.Exceptions;
|
|
using OSHttpServer.Parser;
|
|
using System.Net.Security;
|
|
using System.Security.Cryptography.X509Certificates;
|
|
|
|
namespace OSHttpServer
|
|
{
|
|
/// <summary>
|
|
/// Contains a connection to a browser/client.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Remember to <see cref="Start"/> after you have hooked the <see cref="RequestReceived"/> event.
|
|
/// </remarks>
|
|
public class HttpClientContext : IHttpClientContext, IDisposable
|
|
{
|
|
const int MAXREQUESTS = 20;
|
|
const int MAXKEEPALIVE = 60000;
|
|
|
|
static private int basecontextID;
|
|
|
|
private readonly byte[] m_ReceiveBuffer;
|
|
private int m_ReceiveBytesLeft;
|
|
private ILogWriter _log;
|
|
private readonly IHttpRequestParser m_parser;
|
|
private readonly int m_bufferSize;
|
|
private HashSet<uint> requestsInServiceIDs;
|
|
private Socket m_sock;
|
|
|
|
public bool Available = true;
|
|
public bool StreamPassedOff = false;
|
|
|
|
public int MonitorStartMS = 0;
|
|
public int MonitorKeepaliveMS = 0;
|
|
public bool TriggerKeepalive = false;
|
|
public int TimeoutFirstLine = 70000; // 70 seconds
|
|
public int TimeoutRequestReceived = 180000; // 180 seconds
|
|
|
|
// The difference between this and request received is on POST more time is needed before we get the full request.
|
|
public int TimeoutFullRequestProcessed = 600000; // 10 minutes
|
|
public int m_TimeoutKeepAlive = MAXKEEPALIVE; // 400 seconds before keepalive timeout
|
|
// public int TimeoutKeepAlive = 120000; // 400 seconds before keepalive timeout
|
|
|
|
public int m_maxRequests = MAXREQUESTS;
|
|
|
|
public bool FirstRequestLineReceived;
|
|
public bool FullRequestReceived;
|
|
public bool FullRequestProcessed;
|
|
|
|
private bool isSendingResponse = false;
|
|
|
|
private HttpRequest m_currentRequest;
|
|
private HttpResponse m_currentResponse;
|
|
|
|
public int contextID { get; private set; }
|
|
public int TimeoutKeepAlive
|
|
{
|
|
get { return m_TimeoutKeepAlive; }
|
|
set
|
|
{
|
|
m_TimeoutKeepAlive = (value > MAXKEEPALIVE) ? MAXKEEPALIVE : value;
|
|
}
|
|
}
|
|
|
|
public int MAXRequests
|
|
{
|
|
get { return m_maxRequests; }
|
|
set
|
|
{
|
|
m_maxRequests = value > MAXREQUESTS ? MAXREQUESTS : value;
|
|
}
|
|
}
|
|
|
|
public bool IsSending()
|
|
{
|
|
return isSendingResponse;
|
|
}
|
|
|
|
public bool StopMonitoring;
|
|
|
|
/// <summary>
|
|
/// Context have been started (a new client have connected)
|
|
/// </summary>
|
|
public event EventHandler Started;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="HttpClientContext"/> class.
|
|
/// </summary>
|
|
/// <param name="secured">true if the connection is secured (SSL/TLS)</param>
|
|
/// <param name="remoteEndPoint">client that connected.</param>
|
|
/// <param name="stream">Stream used for communication</param>
|
|
/// <param name="parserFactory">Used to create a <see cref="IHttpRequestParser"/>.</param>
|
|
/// <param name="bufferSize">Size of buffer to use when reading data. Must be at least 4096 bytes.</param>
|
|
/// <exception cref="SocketException">If <see cref="Socket.BeginReceive(byte[],int,int,SocketFlags,AsyncCallback,object)"/> fails</exception>
|
|
/// <exception cref="ArgumentException">Stream must be writable and readable.</exception>
|
|
public HttpClientContext(bool secured, IPEndPoint remoteEndPoint,
|
|
Stream stream, IRequestParserFactory parserFactory, Socket sock)
|
|
{
|
|
if (!stream.CanWrite || !stream.CanRead)
|
|
throw new ArgumentException("Stream must be writable and readable.");
|
|
|
|
RemoteAddress = remoteEndPoint.Address.ToString();
|
|
RemotePort = remoteEndPoint.Port.ToString();
|
|
_log = NullLogWriter.Instance;
|
|
m_parser = parserFactory.CreateParser(_log);
|
|
m_parser.RequestCompleted += OnRequestCompleted;
|
|
m_parser.RequestLineReceived += OnRequestLine;
|
|
m_parser.HeaderReceived += OnHeaderReceived;
|
|
m_parser.BodyBytesReceived += OnBodyBytesReceived;
|
|
m_currentRequest = new HttpRequest(this);
|
|
IsSecured = secured;
|
|
_stream = stream;
|
|
m_sock = sock;
|
|
|
|
m_bufferSize = 8196;
|
|
m_ReceiveBuffer = new byte[m_bufferSize];
|
|
requestsInServiceIDs = new HashSet<uint>();
|
|
|
|
SSLCommonName = "";
|
|
if (secured)
|
|
{
|
|
SslStream _ssl = (SslStream)_stream;
|
|
X509Certificate _cert1 = _ssl.RemoteCertificate;
|
|
if (_cert1 != null)
|
|
{
|
|
X509Certificate2 _cert2 = new X509Certificate2(_cert1);
|
|
if (_cert2 != null)
|
|
SSLCommonName = _cert2.GetNameInfo(X509NameType.SimpleName, false);
|
|
}
|
|
}
|
|
|
|
++basecontextID;
|
|
if (basecontextID <= 0)
|
|
basecontextID = 1;
|
|
|
|
contextID = basecontextID;
|
|
}
|
|
|
|
public bool CanSend()
|
|
{
|
|
if (contextID < 0)
|
|
return false;
|
|
|
|
if (Stream == null || m_sock == null || !m_sock.Connected)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Process incoming body bytes.
|
|
/// </summary>
|
|
/// <param name="sender"><see cref="IHttpRequestParser"/></param>
|
|
/// <param name="e">Bytes</param>
|
|
protected virtual void OnBodyBytesReceived(object sender, BodyEventArgs e)
|
|
{
|
|
m_currentRequest.AddToBody(e.Buffer, e.Offset, e.Count);
|
|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
protected virtual void OnHeaderReceived(object sender, HeaderEventArgs e)
|
|
{
|
|
if (string.Compare(e.Name, "expect", true) == 0 && e.Value.Contains("100-continue"))
|
|
{
|
|
lock (requestsInServiceIDs)
|
|
{
|
|
if (requestsInServiceIDs.Count == 0)
|
|
Respond("HTTP/1.1", HttpStatusCode.Continue, "Please continue.");
|
|
}
|
|
}
|
|
m_currentRequest.AddHeader(e.Name, e.Value);
|
|
}
|
|
|
|
private void OnRequestLine(object sender, RequestLineEventArgs e)
|
|
{
|
|
m_currentRequest.Method = e.HttpMethod;
|
|
m_currentRequest.HttpVersion = e.HttpVersion;
|
|
m_currentRequest.UriPath = e.UriPath;
|
|
m_currentRequest.AddHeader("remote_addr", RemoteAddress);
|
|
m_currentRequest.AddHeader("remote_port", RemotePort);
|
|
FirstRequestLineReceived = true;
|
|
TriggerKeepalive = false;
|
|
MonitorKeepaliveMS = 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Start reading content.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Make sure to call base.Start() if you override this method.
|
|
/// </remarks>
|
|
public virtual void Start()
|
|
{
|
|
ReceiveLoop();
|
|
Started?.Invoke(this, EventArgs.Empty);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Clean up context.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// </remarks>
|
|
public virtual void Cleanup()
|
|
{
|
|
if (StreamPassedOff)
|
|
return;
|
|
|
|
if (Stream != null)
|
|
{
|
|
Stream.Close();
|
|
Stream = null;
|
|
m_sock = null;
|
|
}
|
|
|
|
m_currentRequest?.Clear();
|
|
m_currentRequest = null;
|
|
m_currentResponse?.Clear();
|
|
m_currentResponse = null;
|
|
requestsInServiceIDs.Clear();
|
|
|
|
FirstRequestLineReceived = false;
|
|
FullRequestReceived = false;
|
|
FullRequestProcessed = false;
|
|
MonitorStartMS = 0;
|
|
StopMonitoring = true;
|
|
MonitorKeepaliveMS = 0;
|
|
TriggerKeepalive = false;
|
|
|
|
isSendingResponse = false;
|
|
|
|
m_ReceiveBytesLeft = 0;
|
|
|
|
contextID = -100;
|
|
m_parser.Clear();
|
|
}
|
|
|
|
public void Close()
|
|
{
|
|
Dispose();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Using SSL or other encryption method.
|
|
/// </summary>
|
|
[Obsolete("Use IsSecured instead.")]
|
|
public bool Secured
|
|
{
|
|
get { return IsSecured; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Using SSL or other encryption method.
|
|
/// </summary>
|
|
public bool IsSecured { get; internal set; }
|
|
|
|
|
|
// returns the SSL commonName of remote Certificate
|
|
public string SSLCommonName { get; internal set; }
|
|
|
|
/// <summary>
|
|
/// Specify which logger to use.
|
|
/// </summary>
|
|
public ILogWriter LogWriter
|
|
{
|
|
get { return _log; }
|
|
set
|
|
{
|
|
_log = value ?? NullLogWriter.Instance;
|
|
m_parser.LogWriter = _log;
|
|
}
|
|
}
|
|
|
|
private Stream _stream;
|
|
|
|
/// <summary>
|
|
/// Gets or sets the network stream.
|
|
/// </summary>
|
|
internal Stream Stream
|
|
{
|
|
get { return _stream; }
|
|
set { _stream = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets IP address that the client connected from.
|
|
/// </summary>
|
|
internal string RemoteAddress { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets port that the client connected from.
|
|
/// </summary>
|
|
internal string RemotePort { get; set; }
|
|
|
|
/// <summary>
|
|
/// Disconnect from client
|
|
/// </summary>
|
|
/// <param name="error">error to report in the <see cref="Disconnected"/> event.</param>
|
|
public void Disconnect(SocketError error)
|
|
{
|
|
// disconnect may not throw any exceptions
|
|
try
|
|
{
|
|
try
|
|
{
|
|
if (Stream != null)
|
|
{
|
|
if (error == SocketError.Success)
|
|
Stream.Flush();
|
|
Stream.Close();
|
|
Stream = null;
|
|
}
|
|
m_sock = null;
|
|
}
|
|
catch { }
|
|
|
|
Disconnected?.Invoke(this, new DisconnectedEventArgs(error));
|
|
}
|
|
catch (Exception err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Error, "Disconnect threw an exception: " + err);
|
|
}
|
|
}
|
|
|
|
private void OnReceive(IAsyncResult ar)
|
|
{
|
|
try
|
|
{
|
|
int bytesRead = 0;
|
|
if (Stream == null)
|
|
return;
|
|
try
|
|
{
|
|
bytesRead = Stream.EndRead(ar);
|
|
}
|
|
catch (NullReferenceException)
|
|
{
|
|
Disconnect(SocketError.ConnectionReset);
|
|
return;
|
|
}
|
|
|
|
if (bytesRead == 0)
|
|
{
|
|
Disconnect(SocketError.ConnectionReset);
|
|
return;
|
|
}
|
|
|
|
m_ReceiveBytesLeft += bytesRead;
|
|
if (m_ReceiveBytesLeft > m_ReceiveBuffer.Length)
|
|
{
|
|
throw new BadRequestException("HTTP header Too large: " + m_ReceiveBytesLeft);
|
|
}
|
|
|
|
int offset = m_parser.Parse(m_ReceiveBuffer, 0, m_ReceiveBytesLeft);
|
|
if (Stream == null)
|
|
return; // "Connection: Close" in effect.
|
|
|
|
// try again to see if we can parse another message (check parser to see if it is looking for a new message)
|
|
int nextOffset;
|
|
int nextBytesleft = m_ReceiveBytesLeft - offset;
|
|
|
|
while (offset != 0 && nextBytesleft > 0)
|
|
{
|
|
nextOffset = m_parser.Parse(m_ReceiveBuffer, offset, nextBytesleft);
|
|
|
|
if (Stream == null)
|
|
return; // "Connection: Close" in effect.
|
|
|
|
if (nextOffset == 0)
|
|
break;
|
|
|
|
offset = nextOffset;
|
|
nextBytesleft = m_ReceiveBytesLeft - offset;
|
|
}
|
|
|
|
// copy unused bytes to the beginning of the array
|
|
if (offset > 0 && m_ReceiveBytesLeft > offset)
|
|
Buffer.BlockCopy(m_ReceiveBuffer, offset, m_ReceiveBuffer, 0, m_ReceiveBytesLeft - offset);
|
|
|
|
m_ReceiveBytesLeft -= offset;
|
|
if (Stream != null && Stream.CanRead)
|
|
{
|
|
if (!StreamPassedOff)
|
|
Stream.BeginRead(m_ReceiveBuffer, m_ReceiveBytesLeft, m_ReceiveBuffer.Length - m_ReceiveBytesLeft, OnReceive, null);
|
|
else
|
|
{
|
|
_log.Write(this, LogPrio.Warning, "Could not read any more from the socket.");
|
|
Disconnect(SocketError.Success);
|
|
}
|
|
}
|
|
}
|
|
catch (BadRequestException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Warning, "Bad request, responding with it. Error: " + err);
|
|
try
|
|
{
|
|
Respond("HTTP/1.0", HttpStatusCode.BadRequest, err.Message);
|
|
}
|
|
catch (Exception err2)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Fatal, "Failed to reply to a bad request. " + err2);
|
|
}
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
catch (IOException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive: " + err.Message);
|
|
if (err.InnerException is SocketException)
|
|
Disconnect((SocketError)((SocketException)err.InnerException).ErrorCode);
|
|
else
|
|
Disconnect(SocketError.ConnectionReset);
|
|
}
|
|
catch (ObjectDisposedException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive : " + err.Message);
|
|
Disconnect(SocketError.NotSocket);
|
|
}
|
|
catch (NullReferenceException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive : NullRef: " + err.Message);
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
catch (Exception err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive: " + err.Message);
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
}
|
|
|
|
private async void ReceiveLoop()
|
|
{
|
|
m_ReceiveBytesLeft = 0;
|
|
try
|
|
{
|
|
while(true)
|
|
{
|
|
if (_stream == null || !_stream.CanRead)
|
|
return;
|
|
|
|
int bytesRead = await _stream.ReadAsync(m_ReceiveBuffer, m_ReceiveBytesLeft, m_ReceiveBuffer.Length - m_ReceiveBytesLeft).ConfigureAwait(false);
|
|
|
|
if (bytesRead == 0)
|
|
{
|
|
Disconnect(SocketError.ConnectionReset);
|
|
return;
|
|
}
|
|
|
|
m_ReceiveBytesLeft += bytesRead;
|
|
if (m_ReceiveBytesLeft > m_ReceiveBuffer.Length)
|
|
throw new BadRequestException("HTTP header Too large: " + m_ReceiveBytesLeft);
|
|
|
|
int offset = m_parser.Parse(m_ReceiveBuffer, 0, m_ReceiveBytesLeft);
|
|
if (Stream == null)
|
|
return; // "Connection: Close" in effect.
|
|
|
|
// try again to see if we can parse another message (check parser to see if it is looking for a new message)
|
|
int nextOffset;
|
|
int nextBytesleft = m_ReceiveBytesLeft - offset;
|
|
|
|
while (offset != 0 && nextBytesleft > 0)
|
|
{
|
|
nextOffset = m_parser.Parse(m_ReceiveBuffer, offset, nextBytesleft);
|
|
|
|
if (Stream == null)
|
|
return; // "Connection: Close" in effect.
|
|
|
|
if (nextOffset == 0)
|
|
break;
|
|
|
|
offset = nextOffset;
|
|
nextBytesleft = m_ReceiveBytesLeft - offset;
|
|
}
|
|
|
|
// copy unused bytes to the beginning of the array
|
|
if (offset > 0 && m_ReceiveBytesLeft > offset)
|
|
Buffer.BlockCopy(m_ReceiveBuffer, offset, m_ReceiveBuffer, 0, m_ReceiveBytesLeft - offset);
|
|
|
|
m_ReceiveBytesLeft -= offset;
|
|
if (StreamPassedOff)
|
|
return; //?
|
|
}
|
|
}
|
|
catch (BadRequestException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Warning, "Bad request, responding with it. Error: " + err);
|
|
try
|
|
{
|
|
Respond("HTTP/1.0", HttpStatusCode.BadRequest, err.Message);
|
|
}
|
|
catch (Exception err2)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Fatal, "Failed to reply to a bad request. " + err2);
|
|
}
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
catch (IOException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive: " + err.Message);
|
|
if (err.InnerException is SocketException)
|
|
Disconnect((SocketError)((SocketException)err.InnerException).ErrorCode);
|
|
else
|
|
Disconnect(SocketError.ConnectionReset);
|
|
}
|
|
catch (ObjectDisposedException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive : " + err.Message);
|
|
Disconnect(SocketError.NotSocket);
|
|
}
|
|
catch (NullReferenceException err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive : NullRef: " + err.Message);
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
catch (Exception err)
|
|
{
|
|
LogWriter.Write(this, LogPrio.Debug, "Failed to end receive: " + err.Message);
|
|
Disconnect(SocketError.NoRecovery);
|
|
}
|
|
}
|
|
|
|
private void OnRequestCompleted(object source, EventArgs args)
|
|
{
|
|
TriggerKeepalive = false;
|
|
MonitorKeepaliveMS = 0;
|
|
|
|
// load cookies if they exist
|
|
|
|
RequestCookies cookies = m_currentRequest.Headers["cookie"] != null
|
|
? new RequestCookies(m_currentRequest.Headers["cookie"]) : new RequestCookies(String.Empty);
|
|
m_currentRequest.SetCookies(cookies);
|
|
|
|
m_currentRequest.Body.Seek(0, SeekOrigin.Begin);
|
|
|
|
FullRequestReceived = true;
|
|
|
|
int nreqs;
|
|
lock (requestsInServiceIDs)
|
|
{
|
|
nreqs = requestsInServiceIDs.Count;
|
|
requestsInServiceIDs.Add(m_currentRequest.ID);
|
|
if (m_maxRequests > 0)
|
|
m_maxRequests--;
|
|
}
|
|
|
|
// for now pipeline requests need to be serialized by opensim
|
|
RequestReceived(this, new RequestEventArgs(m_currentRequest));
|
|
|
|
m_currentRequest = new HttpRequest(this);
|
|
|
|
int nreqsnow;
|
|
lock (requestsInServiceIDs)
|
|
{
|
|
nreqsnow = requestsInServiceIDs.Count;
|
|
}
|
|
if (nreqs != nreqsnow)
|
|
{
|
|
// request was not done by us
|
|
}
|
|
}
|
|
|
|
public void ReqResponseAboutToSend(uint requestID)
|
|
{
|
|
isSendingResponse = true;
|
|
}
|
|
|
|
public void StartSendResponse(HttpResponse response)
|
|
{
|
|
isSendingResponse = true;
|
|
m_currentResponse = response;
|
|
ContextTimeoutManager.EnqueueSend(this, response.Priority);
|
|
}
|
|
|
|
public bool TrySendResponse(int bytesLimit)
|
|
{
|
|
if(m_currentResponse == null)
|
|
return false;
|
|
if (m_currentResponse.Sent)
|
|
return false;
|
|
|
|
if(!CanSend())
|
|
return false;
|
|
|
|
m_currentResponse?.SendNextAsync(bytesLimit);
|
|
return false;
|
|
}
|
|
|
|
public void ContinueSendResponse()
|
|
{
|
|
if(m_currentResponse == null)
|
|
return;
|
|
ContextTimeoutManager.EnqueueSend(this, m_currentResponse.Priority);
|
|
}
|
|
|
|
public void ReqResponseSent(uint requestID, ConnectionType ctype)
|
|
{
|
|
isSendingResponse = false;
|
|
m_currentResponse?.Clear();
|
|
m_currentResponse = null;
|
|
|
|
bool doclose = ctype == ConnectionType.Close;
|
|
lock (requestsInServiceIDs)
|
|
{
|
|
requestsInServiceIDs.Remove(requestID);
|
|
// doclose = doclose && requestsInServiceIDs.Count == 0;
|
|
if (requestsInServiceIDs.Count > 1)
|
|
{
|
|
|
|
}
|
|
}
|
|
|
|
if (doclose)
|
|
Disconnect(SocketError.Success);
|
|
else
|
|
{
|
|
lock (requestsInServiceIDs)
|
|
{
|
|
if (requestsInServiceIDs.Count == 0)
|
|
TriggerKeepalive = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Send a response.
|
|
/// </summary>
|
|
/// <param name="httpVersion">Either <see cref="HttpHelper.HTTP10"/> or <see cref="HttpHelper.HTTP11"/></param>
|
|
/// <param name="statusCode">HTTP status code</param>
|
|
/// <param name="reason">reason for the status code.</param>
|
|
/// <param name="body">HTML body contents, can be null or empty.</param>
|
|
/// <param name="contentType">A content type to return the body as, i.e. 'text/html' or 'text/plain', defaults to 'text/html' if null or empty</param>
|
|
/// <exception cref="ArgumentException">If <paramref name="httpVersion"/> is invalid.</exception>
|
|
public void Respond(string httpVersion, HttpStatusCode statusCode, string reason, string body, string contentType)
|
|
{
|
|
if (string.IsNullOrEmpty(contentType))
|
|
contentType = "text/html";
|
|
|
|
if (string.IsNullOrEmpty(reason))
|
|
reason = statusCode.ToString();
|
|
|
|
string response = string.IsNullOrEmpty(body)
|
|
? httpVersion + " " + (int)statusCode + " " + reason + "\r\n\r\n"
|
|
: string.Format("{0} {1} {2}\r\nContent-Type: {5}\r\nContent-Length: {3}\r\n\r\n{4}",
|
|
httpVersion, (int)statusCode, reason ?? statusCode.ToString(),
|
|
body.Length, body, contentType);
|
|
byte[] buffer = Encoding.ASCII.GetBytes(response);
|
|
|
|
Send(buffer);
|
|
if (m_currentRequest.Connection == ConnectionType.Close)
|
|
FullRequestProcessed = true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Send a response.
|
|
/// </summary>
|
|
/// <param name="httpVersion">Either <see cref="HttpHelper.HTTP10"/> or <see cref="HttpHelper.HTTP11"/></param>
|
|
/// <param name="statusCode">HTTP status code</param>
|
|
/// <param name="reason">reason for the status code.</param>
|
|
public void Respond(string httpVersion, HttpStatusCode statusCode, string reason)
|
|
{
|
|
Respond(httpVersion, statusCode, reason, null, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// send a whole buffer
|
|
/// </summary>
|
|
/// <param name="buffer">buffer to send</param>
|
|
/// <exception cref="ArgumentNullException"></exception>
|
|
public bool Send(byte[] buffer)
|
|
{
|
|
if (buffer == null)
|
|
throw new ArgumentNullException("buffer");
|
|
return Send(buffer, 0, buffer.Length);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Send data using the stream
|
|
/// </summary>
|
|
/// <param name="buffer">Contains data to send</param>
|
|
/// <param name="offset">Start position in buffer</param>
|
|
/// <param name="size">number of bytes to send</param>
|
|
/// <exception cref="ArgumentNullException"></exception>
|
|
/// <exception cref="ArgumentOutOfRangeException"></exception>
|
|
|
|
private object sendLock = new object();
|
|
|
|
public bool Send(byte[] buffer, int offset, int size)
|
|
{
|
|
if (Stream == null || m_sock == null || !m_sock.Connected)
|
|
return false;
|
|
|
|
if (offset + size > buffer.Length)
|
|
throw new ArgumentOutOfRangeException("offset", offset, "offset + size is beyond end of buffer.");
|
|
|
|
bool ok = true;
|
|
lock (sendLock) // can't have overlaps here
|
|
{
|
|
try
|
|
{
|
|
Stream.Write(buffer, offset, size);
|
|
}
|
|
catch
|
|
{
|
|
ok = false;
|
|
}
|
|
|
|
if (!ok && Stream != null)
|
|
Disconnect(SocketError.NoRecovery);
|
|
return ok;
|
|
}
|
|
}
|
|
|
|
public async Task<bool> SendAsync(byte[] buffer, int offset, int size)
|
|
{
|
|
if (Stream == null || m_sock == null || !m_sock.Connected)
|
|
return false;
|
|
|
|
if (offset + size > buffer.Length)
|
|
throw new ArgumentOutOfRangeException("offset", offset, "offset + size is beyond end of buffer.");
|
|
|
|
bool ok = true;
|
|
ContextTimeoutManager.ContextEnterActiveSend();
|
|
try
|
|
{
|
|
await Stream.WriteAsync(buffer, offset, size).ConfigureAwait(false);
|
|
}
|
|
catch
|
|
{
|
|
ok = false;
|
|
}
|
|
|
|
ContextTimeoutManager.ContextLeaveActiveSend();
|
|
|
|
if (!ok && Stream != null)
|
|
Disconnect(SocketError.NoRecovery);
|
|
return ok;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The context have been disconnected.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Event can be used to clean up a context, or to reuse it.
|
|
/// </remarks>
|
|
public event EventHandler<DisconnectedEventArgs> Disconnected = delegate { };
|
|
/// <summary>
|
|
/// A request have been received in the context.
|
|
/// </summary>
|
|
public event EventHandler<RequestEventArgs> RequestReceived = delegate { };
|
|
|
|
public HTTPNetworkContext GiveMeTheNetworkStreamIKnowWhatImDoing()
|
|
{
|
|
StreamPassedOff = true;
|
|
m_parser.RequestCompleted -= OnRequestCompleted;
|
|
m_parser.RequestLineReceived -= OnRequestLine;
|
|
m_parser.HeaderReceived -= OnHeaderReceived;
|
|
m_parser.BodyBytesReceived -= OnBodyBytesReceived;
|
|
m_parser.Clear();
|
|
|
|
return new HTTPNetworkContext() { Socket = m_sock, Stream = _stream as NetworkStream };
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
public void Dispose(bool disposing)
|
|
{
|
|
if (contextID >= 0)
|
|
{
|
|
StreamPassedOff = false;
|
|
Cleanup();
|
|
}
|
|
}
|
|
}
|
|
} |