private bool Receive(HTTPRequest request)
{
SupportedProtocols protocol = request.ProtocolHandler == SupportedProtocols.Unknown ? HTTPProtocolFactory.GetProtocolFromUri(request.CurrentUri) : request.ProtocolHandler;
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - Receive - protocol: {1}", this.ToString(), protocol.ToString()), this.Context, request.Context);
}
request.Response = HTTPProtocolFactory.Get(protocol, request, this.conn.connector.Stream, request.UseStreaming, false);
if (!request.Response.Receive())
{
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTP1Handler", string.Format("[{0}] - Receive - Failed! Response will be null, returning with false.", this.ToString()), this.Context, request.Context);
}
request.Response = null;
return(false);
}
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTP1Handler", string.Format("[{0}] - Receive - Finished Successfully!", this.ToString()), this.Context, request.Context);
}
return(true);
}
public void Connect(HTTPRequest request)
{
string negotiatedProtocol = HTTPProtocolFactory.W3C_HTTP1;
Uri uri =
#if !BESTHTTP_DISABLE_PROXY
request.HasProxy ? request.Proxy.Address :
#endif
request.CurrentUri;
#region TCP Connection
if (Client == null)
{
Client = new TcpClient();
}
if (!Client.Connected)
{
Client.ConnectTimeout = request.ConnectTimeout;
#if NETFX_CORE
Client.UseHTTPSProtocol =
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
!Request.UseAlternateSSL &&
#endif
HTTPProtocolFactory.IsSecureProtocol(uri);
#endif
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("TCPConnector", string.Format("'{0}' - Connecting to {1}:{2}", request.CurrentUri.ToString(), uri.Host, uri.Port.ToString()));
}
#if !NETFX_CORE && (!UNITY_WEBGL || UNITY_EDITOR)
Client.SendBufferSize = HTTPManager.SendBufferSize;
Client.ReceiveBufferSize = HTTPManager.ReceiveBufferSize;
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("TCPConnector", string.Format("'{0}' - Buffer sizes - Send: {1} Receive: {2} Blocking: {3}", request.CurrentUri.ToString(), Client.SendBufferSize.ToString(), Client.ReceiveBufferSize.ToString(), Client.Client.Blocking.ToString()));
}
#endif
Client.Connect(uri.Host, uri.Port);
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("TCPConnector", "Connected to " + uri.Host + ":" + uri.Port.ToString());
}
}
else if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("TCPConnector", "Already connected to " + uri.Host + ":" + uri.Port.ToString());
}
#endregion
if (Stream == null)
{
bool isSecure = HTTPProtocolFactory.IsSecureProtocol(request.CurrentUri);
Stream = Client.GetStream();
/*if (Stream.CanTimeout)
* Stream.ReadTimeout = Stream.WriteTimeout = (int)Request.Timeout.TotalMilliseconds;*/
#if !BESTHTTP_DISABLE_PROXY
if (request.Proxy != null)
{
request.Proxy.Connect(this.Stream, request);
}
#endif
// We have to use Request.CurrentUri here, because uri can be a proxy uri with a different protocol
if (isSecure)
{
#region SSL Upgrade
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
if (request.UseAlternateSSL)
{
var handler = new TlsClientProtocol(Client.GetStream(), new BestHTTP.SecureProtocol.Org.BouncyCastle.Security.SecureRandom());
// http://tools.ietf.org/html/rfc3546#section-3.1
// -It is RECOMMENDED that clients include an extension of type "server_name" in the client hello whenever they locate a server by a supported name type.
// -Literal IPv4 and IPv6 addresses are not permitted in "HostName".
// User-defined list has a higher priority
List <string> hostNames = request.CustomTLSServerNameList;
// If there's no user defined one and the host isn't an IP address, add the default one
if ((hostNames == null || hostNames.Count == 0) && !request.CurrentUri.IsHostIsAnIPAddress())
{
hostNames = new List <string>(1);
hostNames.Add(request.CurrentUri.Host);
}
SupportedProtocols protocol = request.ProtocolHandler == SupportedProtocols.Unknown ? HTTPProtocolFactory.GetProtocolFromUri(request.CurrentUri) : request.ProtocolHandler;
List <string> protocols = new List <string>();
#if !BESTHTTP_DISABLE_HTTP2
if (protocol == SupportedProtocols.HTTP)
{
// http/2 over tls (https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids)
protocols.Add(HTTPProtocolFactory.W3C_HTTP2);
}
#endif
protocols.Add(HTTPProtocolFactory.W3C_HTTP1);
var tlsClient = new LegacyTlsClient(request.CurrentUri,
request.CustomCertificateVerifyer == null ? new AlwaysValidVerifyer() : request.CustomCertificateVerifyer,
request.CustomClientCredentialsProvider,
hostNames,
protocols);
handler.Connect(tlsClient);
if (!string.IsNullOrEmpty(tlsClient.ServerSupportedProtocol))
{
negotiatedProtocol = tlsClient.ServerSupportedProtocol;
}
Stream = handler.Stream;
}
else
#endif
{
#if !NETFX_CORE
SslStream sslStream = new SslStream(Client.GetStream(), false, (sender, cert, chain, errors) =>
{
return(request.CallCustomCertificationValidator(cert, chain));
});
if (!sslStream.IsAuthenticated)
{
sslStream.AuthenticateAsClient(request.CurrentUri.Host);
}
Stream = sslStream;
#else
Stream = Client.GetStream();
#endif
}
#endregion
}
}
this.NegotiatedProtocol = negotiatedProtocol;
}
public void Connect(HTTPRequest request)
{
string negotiatedProtocol = HTTPProtocolFactory.W3C_HTTP1;
Uri uri =
#if !BESTHTTP_DISABLE_PROXY
request.HasProxy ? request.Proxy.Address :
#endif
request.CurrentUri;
#region TCP Connection
if (Client == null)
{
Client = new TcpClient();
}
if (!Client.Connected)
{
Client.ConnectTimeout = request.ConnectTimeout;
#if NETFX_CORE
Client.UseHTTPSProtocol =
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
!Request.UseAlternateSSL &&
#endif
HTTPProtocolFactory.IsSecureProtocol(uri);
#endif
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("TCPConnector", string.Format("'{0}' - Connecting to {1}:{2}", request.CurrentUri.ToString(), uri.Host, uri.Port.ToString()), request.Context);
}
#if !NETFX_CORE && (!UNITY_WEBGL || UNITY_EDITOR)
Client.SendBufferSize = HTTPManager.SendBufferSize;
Client.ReceiveBufferSize = HTTPManager.ReceiveBufferSize;
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("TCPConnector", string.Format("'{0}' - Buffer sizes - Send: {1} Receive: {2} Blocking: {3}", request.CurrentUri.ToString(), Client.SendBufferSize.ToString(), Client.ReceiveBufferSize.ToString(), Client.Client.Blocking.ToString()), request.Context);
}
#endif
#if NETFX_CORE && !UNITY_EDITOR && !ENABLE_IL2CPP
try
{
Client.Connect(uri.Host, uri.Port);
}
finally
{
request.Timing.Add(TimingEventNames.TCP_Connection);
}
#else
System.Net.IPAddress[] addresses = null;
try
{
if (Client.ConnectTimeout > TimeSpan.Zero)
{
// https://forum.unity3d.com/threads/best-http-released.200006/page-37#post-3150972
using (System.Threading.ManualResetEvent mre = new System.Threading.ManualResetEvent(false))
{
IAsyncResult result = System.Net.Dns.BeginGetHostAddresses(uri.Host, (res) => { try { mre.Set(); } catch { } }, null);
bool success = mre.WaitOne(Client.ConnectTimeout);
if (success)
{
addresses = System.Net.Dns.EndGetHostAddresses(result);
}
else
{
throw new TimeoutException("DNS resolve timed out!");
}
}
}
else
{
addresses = System.Net.Dns.GetHostAddresses(uri.Host);
}
}
finally
{
request.Timing.Add(TimingEventNames.DNS_Lookup);
}
if (request.IsCancellationRequested)
{
throw new Exception("IsCancellationRequested");
}
try
{
Client.Connect(addresses, uri.Port, request);
}
finally
{
request.Timing.Add(TimingEventNames.TCP_Connection);
}
if (request.IsCancellationRequested)
{
throw new Exception("IsCancellationRequested");
}
#endif
if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("TCPConnector", "Connected to " + uri.Host + ":" + uri.Port.ToString(), request.Context);
}
}
else if (HTTPManager.Logger.Level <= Logger.Loglevels.Information)
{
HTTPManager.Logger.Information("TCPConnector", "Already connected to " + uri.Host + ":" + uri.Port.ToString(), request.Context);
}
#endregion
if (Stream == null)
{
bool isSecure = HTTPProtocolFactory.IsSecureProtocol(request.CurrentUri);
// set the stream to Client.GetStream() so the proxy, if there's any can use it directly.
this.Stream = this.TopmostStream = Client.GetStream();
/*if (Stream.CanTimeout)
* Stream.ReadTimeout = Stream.WriteTimeout = (int)Request.Timeout.TotalMilliseconds;*/
#if !BESTHTTP_DISABLE_PROXY
if (request.Proxy != null)
{
try
{
request.Proxy.Connect(this.Stream, request);
}
finally
{
request.Timing.Add(TimingEventNames.Proxy_Negotiation);
}
}
if (request.IsCancellationRequested)
{
throw new Exception("IsCancellationRequested");
}
#endif
// proxy connect is done, we can set the stream to a buffered one. HTTPProxy requires the raw NetworkStream for HTTPResponse's ReadUnknownSize!
this.Stream = this.TopmostStream = new BufferedReadNetworkStream(Client.GetStream(), Math.Max(8 * 1024, HTTPManager.ReceiveBufferSize));
// We have to use Request.CurrentUri here, because uri can be a proxy uri with a different protocol
if (isSecure)
{
#region SSL Upgrade
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
if (request.UseAlternateSSL)
{
var handler = new TlsClientProtocol(this.Stream, new BestHTTP.SecureProtocol.Org.BouncyCastle.Security.SecureRandom());
// http://tools.ietf.org/html/rfc3546#section-3.1
// -It is RECOMMENDED that clients include an extension of type "server_name" in the client hello whenever they locate a server by a supported name type.
// -Literal IPv4 and IPv6 addresses are not permitted in "HostName".
// User-defined list has a higher priority
List <string> hostNames = request.CustomTLSServerNameList;
// If there's no user defined one and the host isn't an IP address, add the default one
if ((hostNames == null || hostNames.Count == 0) && !request.CurrentUri.IsHostIsAnIPAddress())
{
hostNames = new List <string>(1);
hostNames.Add(request.CurrentUri.Host);
}
List <string> protocols = new List <string>();
#if !BESTHTTP_DISABLE_HTTP2
SupportedProtocols protocol = request.ProtocolHandler == SupportedProtocols.Unknown ? HTTPProtocolFactory.GetProtocolFromUri(request.CurrentUri) : request.ProtocolHandler;
if (protocol == SupportedProtocols.HTTP)
{
// http/2 over tls (https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids)
protocols.Add(HTTPProtocolFactory.W3C_HTTP2);
}
#endif
protocols.Add(HTTPProtocolFactory.W3C_HTTP1);
var tlsClient = new LegacyTlsClient(request.CurrentUri,
request.CustomCertificateVerifyer == null ? new AlwaysValidVerifyer() : request.CustomCertificateVerifyer,
request.CustomClientCredentialsProvider,
hostNames,
protocols);
tlsClient.LoggingContext = request.Context;
handler.Connect(tlsClient);
if (!string.IsNullOrEmpty(tlsClient.ServerSupportedProtocol))
{
negotiatedProtocol = tlsClient.ServerSupportedProtocol;
}
Stream = handler.Stream;
}
else
#endif
{
#if !NETFX_CORE
SslStream sslStream = new SslStream(Client.GetStream(), false, (sender, cert, chain, errors) =>
{
return(request.CallCustomCertificationValidator(cert, chain));
});
if (!sslStream.IsAuthenticated)
{
sslStream.AuthenticateAsClient(request.CurrentUri.Host);
}
Stream = sslStream;
#else
Stream = Client.GetStream();
#endif
}
#endregion
request.Timing.Add(TimingEventNames.TLS_Negotiation);
}
}
this.NegotiatedProtocol = negotiatedProtocol;
}
void OnResponse(int httpStatus, BufferSegment payload)
{
HTTPConnectionStates proposedConnectionState = HTTPConnectionStates.Processing;
bool resendRequest = false;
try
{
if (this.CurrentRequest.IsCancellationRequested)
{
return;
}
using (var ms = new BufferSegmentStream())
{
Stream = ms;
XHR_GetStatusLine(NativeId, OnBufferCallback);
XHR_GetResponseHeaders(NativeId, OnBufferCallback);
if (payload != BufferSegment.Empty)
{
ms.Write(payload);
}
SupportedProtocols protocol = CurrentRequest.ProtocolHandler == SupportedProtocols.Unknown ? HTTPProtocolFactory.GetProtocolFromUri(CurrentRequest.CurrentUri) : CurrentRequest.ProtocolHandler;
CurrentRequest.Response = HTTPProtocolFactory.Get(protocol, CurrentRequest, ms, CurrentRequest.UseStreaming, false);
CurrentRequest.Response.Receive(payload != BufferSegment.Empty && payload.Count > 0 ? (int)payload.Count : -1, true);
KeepAliveHeader keepAlive = null;
ConnectionHelper.HandleResponse(this.ToString(), this.CurrentRequest, out resendRequest, out proposedConnectionState, ref keepAlive);
}
}
catch (Exception e)
{
HTTPManager.Logger.Exception(this.NativeId + " WebGLConnection", "OnResponse", e, this.Context);
if (this.ShutdownType == ShutdownTypes.Immediate)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
if (this.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
this.CurrentRequest.Response = null;
if (!this.CurrentRequest.IsCancellationRequested)
{
this.CurrentRequest.Exception = e;
this.CurrentRequest.State = HTTPRequestStates.Error;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
finally
{
// Exit ASAP
if (this.ShutdownType != ShutdownTypes.Immediate)
{
if (this.CurrentRequest.IsCancellationRequested)
{
// we don't know what stage the request is cancelled, we can't safely reuse the tcp channel.
proposedConnectionState = HTTPConnectionStates.Closed;
this.CurrentRequest.Response = null;
this.CurrentRequest.State = this.CurrentRequest.IsTimedOut ? HTTPRequestStates.TimedOut : HTTPRequestStates.Aborted;
}
else if (resendRequest)
{
RequestEventHelper.EnqueueRequestEvent(new RequestEventInfo(this.CurrentRequest, RequestEvents.Resend));
}
else if (this.CurrentRequest.Response != null && this.CurrentRequest.Response.IsUpgraded)
{
proposedConnectionState = HTTPConnectionStates.WaitForProtocolShutdown;
}
else if (this.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (this.CurrentRequest.Response != null)
{
this.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
this.CurrentRequest.Exception = new Exception(string.Format("[{0}] Remote server closed the connection before sending response header! Previous request state: {1}. Connection state: {2}",
this.ToString(),
this.CurrentRequest.State.ToString(),
this.State.ToString()));
this.CurrentRequest.State = HTTPRequestStates.Error;
proposedConnectionState = HTTPConnectionStates.Closed;
}
}
this.CurrentRequest = null;
if (proposedConnectionState == HTTPConnectionStates.Processing)
{
proposedConnectionState = HTTPConnectionStates.Closed;
}
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this, proposedConnectionState));
}
}
}
