protected void OnClientReceive(IAsyncResult ar)
{
try
{
int count = this.socketClient.EndReceive(ar);
if (count > 0)
{
if ((this._mySession.requestBodyBytes == null) || (this._mySession.requestBodyBytes.LongLength == 0L))
{
try
{
HTTPSClientHello hello = new HTTPSClientHello();
if (hello.LoadFromStream(new MemoryStream(this.arrRequestBytes, 0, count, false)))
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes(hello.ToString() + "\n");
this._mySession["https-Client-SessionID"] = hello.SessionID;
}
}
catch (Exception exception)
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes("HTTPSParse Failed: " + exception.Message);
}
}
this.socketRemote.BeginSend(this.arrRequestBytes, 0, count, SocketFlags.None, new AsyncCallback(this.OnRemoteSent), this.socketRemote);
}
else
{
this.CloseTunnel();
}
}
catch (Exception)
{
this.CloseTunnel();
}
}
protected void OnClientReceive(IAsyncResult iasyncResult_0)
{
try
{
int num = this.socketClient.EndReceive(iasyncResult_0);
if (num > 0)
{
this._lngEgressByteCount += (long)num;
FiddlerApplication.DoReadRequestBuffer(this._mySession, this.arrRequestBytes, num);
if (this._mySession.requestBodyBytes != null)
{
if (this._mySession.requestBodyBytes.LongLength != 0L)
{
goto IL_FF;
}
}
try
{
HTTPSClientHello hTTPSClientHello = new HTTPSClientHello();
if (hTTPSClientHello.LoadFromStream(new MemoryStream(this.arrRequestBytes, 0, num, false)))
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes(hTTPSClientHello.ToString() + "\n");
this._mySession["https-Client-SessionID"] = hTTPSClientHello.SessionID;
if (!string.IsNullOrEmpty(hTTPSClientHello.ServerNameIndicator))
{
this._mySession["https-Client-SNIHostname"] = hTTPSClientHello.ServerNameIndicator;
}
}
}
catch (Exception ex)
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes("Request HTTPSParse failed: " + ex.Message);
}
IL_FF:
this.socketRemote.BeginSend(this.arrRequestBytes, 0, num, SocketFlags.None, new AsyncCallback(this.OnRemoteSent), this.socketRemote);
}
else
{
FiddlerApplication.DoReadRequestBuffer(this._mySession, this.arrRequestBytes, 0);
this.CloseTunnel();
}
}
catch (Exception)
{
this.CloseTunnel();
}
}
public override string ToString()
{
StringBuilder stringBuilder = new StringBuilder(512);
if (this._HandshakeVersion == 2)
{
stringBuilder.Append("A SSLv2-compatible ClientHello handshake was found. Fiddler extracted the parameters below.\n\n");
}
else
{
stringBuilder.Append("A SSLv3-compatible ClientHello handshake was found. Fiddler extracted the parameters below.\n\n");
}
stringBuilder.AppendFormat("Version: {0}\n", HTTPSUtilities.HTTPSVersionToString(this._MajorVersion, this._MinorVersion));
stringBuilder.AppendFormat("Random: {0}\n", Utilities.ByteArrayToString(this._Random));
stringBuilder.AppendFormat("SessionID: {0}\n", Utilities.ByteArrayToString(this._SessionID));
stringBuilder.AppendFormat("Extensions: \n{0}\n", HTTPSClientHello.ExtensionListToString(this._Extensions));
stringBuilder.AppendFormat("Ciphers: \n{0}\n", HTTPSClientHello.CipherSuitesToString(this._CipherSuites));
stringBuilder.AppendFormat("Compression: \n{0}\n", HTTPSClientHello.CompressionSuitesToString(this._CompressionSuites));
return(stringBuilder.ToString());
}
protected void OnClientReceive(IAsyncResult ar)
{
try
{
int cBytes = this.socketClient.EndReceive(ar);
if (cBytes > 0)
{
this._lngEgressByteCount += cBytes;
FiddlerApplication.DoReadRequestBuffer(this._mySession, this.arrRequestBytes, cBytes);
if ((this._mySession.requestBodyBytes == null) || (this._mySession.requestBodyBytes.LongLength == 0L))
{
try
{
HTTPSClientHello hello = new HTTPSClientHello();
if (hello.LoadFromStream(new MemoryStream(this.arrRequestBytes, 0, cBytes, false)))
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes(hello.ToString() + "\n");
this._mySession["https-Client-SessionID"] = hello.SessionID;
if (!string.IsNullOrEmpty(hello.ServerNameIndicator))
{
this._mySession["https-Client-SNIHostname"] = hello.ServerNameIndicator;
}
}
}
catch (Exception exception)
{
this._mySession.requestBodyBytes = Encoding.UTF8.GetBytes("Request HTTPSParse failed: " + exception.Message);
}
}
this.socketRemote.BeginSend(this.arrRequestBytes, 0, cBytes, SocketFlags.None, new AsyncCallback(this.OnRemoteSent), this.socketRemote);
}
else
{
FiddlerApplication.DoReadRequestBuffer(this._mySession, this.arrRequestBytes, 0);
this.CloseTunnel();
}
}
catch (Exception)
{
this.CloseTunnel();
}
}
private bool AcceptHTTPSRequest(X509Certificate2 oCert)
{
try
{
if (CONFIG.bUseSNIForCN)
{
byte[] buffer = new byte[0x400];
int count = this.oRequest.pipeClient.GetRawSocket().Receive(buffer, SocketFlags.Peek);
HTTPSClientHello hello = new HTTPSClientHello();
if (hello.LoadFromStream(new MemoryStream(buffer, 0, count, false)))
{
this.oFlags["https-Client-SessionID"] = hello.SessionID;
if (!string.IsNullOrEmpty(hello.ServerNameIndicator))
{
FiddlerApplication.Log.LogFormat("Secure Endpoint request with SNI of '{0}'", new object[] { hello.ServerNameIndicator });
this.oFlags["https-Client-SNIHostname"] = hello.ServerNameIndicator;
oCert = CertMaker.FindCert(hello.ServerNameIndicator);
}
}
}
if (!this.oRequest.pipeClient.SecureClientPipeDirect(oCert))
{
FiddlerApplication.Log.LogString("Failed to secure client connection when acting as Secure Endpoint.");
return false;
}
}
catch (Exception exception)
{
FiddlerApplication.Log.LogFormat("Failed to secure client connection when acting as Secure Endpoint: {0}", new object[] { exception.ToString() });
}
return true;
}
internal bool ReturnResponse(bool bForceClientServerPipeAffinity)
{
this.state = SessionStates.SendingResponse;
bool flag = false;
this.Timers.ClientBeginResponse = this.Timers.ClientDoneResponse = DateTime.Now;
try
{
if ((this.oRequest.pipeClient != null) && this.oRequest.pipeClient.Connected)
{
if (this.oFlags.ContainsKey("response-trickle-delay"))
{
int num = int.Parse(this.oFlags["response-trickle-delay"]);
this.oRequest.pipeClient.TransmitDelay = num;
}
this.oRequest.pipeClient.Send(this.oResponse.headers.ToByteArray(true, true));
this.oRequest.pipeClient.Send(this.responseBodyBytes);
this.Timers.ClientDoneResponse = DateTime.Now;
if ((((this.responseCode == 0x65) && (this.oRequest != null)) && ((this.oResponse != null) && (this.oRequest.headers != null))) && ((this.oRequest.headers.ExistsAndContains("Upgrade", "WebSocket") && (this.oResponse.headers != null)) && this.oResponse.headers.ExistsAndContains("Upgrade", "WebSocket")))
{
FiddlerApplication.Log.LogFormat("Upgrading Session #{0} to websocket", new object[] { this.id });
WebSocket.CreateTunnel(this);
this.state = SessionStates.Done;
this.FinishUISession(false);
return true;
}
if (((this.responseCode == 200) && this.HTTPMethodIs("CONNECT")) && (this.oRequest.pipeClient != null))
{
bForceClientServerPipeAffinity = true;
Socket rawSocket = this.oRequest.pipeClient.GetRawSocket();
if (rawSocket != null)
{
byte[] buffer = new byte[0x400];
int iMaxByteCount = rawSocket.Receive(buffer, SocketFlags.Peek);
if (iMaxByteCount == 0)
{
this.oFlags["x-CONNECT-Peek"] = "After the client received notice of the established CONNECT, it failed to send any data.";
this.requestBodyBytes = Encoding.UTF8.GetBytes("After the client received notice of the established CONNECT, it failed to send any data.\n");
if (this.isFlagSet(SessionFlags.SentToGateway))
{
this.PoisonServerPipe();
}
this.PoisonClientPipe();
this.oRequest.pipeClient.End();
flag = true;
goto Label_0442;
}
if (CONFIG.bDebugSpew)
{
FiddlerApplication.Log.LogFormat("Peeking at the first bytes from CONNECT'd client session {0} yielded:\n{1}", new object[] { this.id, Utilities.ByteArrayToHexView(buffer, 0x20, iMaxByteCount) });
}
if ((buffer[0] == 0x16) || (buffer[0] == 0x80))
{
try
{
HTTPSClientHello hello = new HTTPSClientHello();
if (hello.LoadFromStream(new MemoryStream(buffer, 0, iMaxByteCount, false)))
{
this.requestBodyBytes = Encoding.UTF8.GetBytes(hello.ToString() + "\n");
this["https-Client-SessionID"] = hello.SessionID;
if (!string.IsNullOrEmpty(hello.ServerNameIndicator))
{
this["https-Client-SNIHostname"] = hello.ServerNameIndicator;
}
}
}
catch (Exception)
{
}
CONNECTTunnel.CreateTunnel(this);
flag = true;
goto Label_0442;
}
if ((((iMaxByteCount > 4) && (buffer[0] == 0x47)) && ((buffer[1] == 0x45) && (buffer[2] == 0x54))) && (buffer[3] == 0x20))
{
this.SetBitFlag(SessionFlags.IsWebSocketTunnel, true);
}
else
{
this.oFlags["x-CONNECT-Peek"] = BitConverter.ToString(buffer, 0, Math.Min(iMaxByteCount, 0x10));
this.oFlags["x-no-decrypt"] = "PeekYieldedUnknownProtocol";
CONNECTTunnel.CreateTunnel(this);
flag = true;
goto Label_0442;
}
}
}
if (bForceClientServerPipeAffinity || this._MayReuseMyClientPipe())
{
FiddlerApplication.DebugSpew("Creating next session with pipes from {0}.", new object[] { this.id });
this._createNextSession(bForceClientServerPipeAffinity);
flag = true;
}
else
{
if (CONFIG.bDebugSpew)
{
FiddlerApplication.DebugSpew(string.Format("fiddler.network.clientpipereuse> Closing client socket since bReuseClientSocket was false after returning [{0}]", this.url));
}
this.oRequest.pipeClient.End();
flag = true;
}
}
else
{
flag = true;
}
}
catch (Exception exception)
{
if (CONFIG.bDebugSpew)
{
FiddlerApplication.DebugSpew(string.Format("Write to client failed for Session #{0}; exception was {1}", this.id, exception.ToString()));
}
this.state = SessionStates.Aborted;
}
Label_0442:
this.oRequest.pipeClient = null;
if (flag)
{
this.state = SessionStates.Done;
try
{
this.FinishUISession(false);
}
catch (Exception)
{
}
}
FiddlerApplication.DoAfterSessionComplete(this);
if (this.oFlags.ContainsKey("log-drop-response-body"))
{
this.oFlags["x-ResponseBodyFinalLength"] = (this.responseBodyBytes != null) ? this.responseBodyBytes.LongLength.ToString() : "0";
this.SetBitFlag(SessionFlags.ResponseBodyDropped, true);
this.responseBodyBytes = Utilities.emptyByteArray;
}
return flag;
}
