/// <summary>
/// Sends a message to the remote host.
/// </summary>
/// <param name="message">The message to be sent.</param>
public void Send(Message message)
{
#if TRIAL
_messagesBeingSent[message.MessageId] = message;
#endif
BinaryLogWriter binaryLogWriter = this.ITransportContext.BinaryLogWriter;
try
{
using (new ReaderAutoLocker(this._disposeLock))
{
if (this._disposed)
{
throw OperationException.WrapException(this._disposeReason);
}
}
SecuritySession session = null;
if (this._disposed)
{
throw OperationException.WrapException(this._disposeReason);
}
// get the security session descriptor
if (message.SecuritySessionParameters == null)
{
SecuritySessionParameters securitySessionParameters = SecuritySessionServices.GetCurrentSecurityContext();
if (securitySessionParameters == null)
{
securitySessionParameters = message.Recipient.SecuritySessionParameters;
}
if (securitySessionParameters == null)
{
securitySessionParameters = this.ITransportContext.SecuritySessionParameters;
}
if (securitySessionParameters == null)
{
securitySessionParameters = SecuritySessionServices.DefaultSecuritySession;
}
message.SecuritySessionParameters = securitySessionParameters;
}
// LOG:
if (binaryLogWriter != null && binaryLogWriter[LogCategory.MessageProcessing] > 0)
{
binaryLogWriter.WriteSecuritySessionParametersEvent("ConnectionManager.Send",
LogMessageType.SecuritySessionParametersAssembled, null, message, message.Recipient,
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name,
message.SecuritySessionParameters,
"Security Session Parameters have been assembled.");
}
// determine the type of sending
message.IsSynchronous = (message.SecuritySessionParameters.Attributes & SecuritySessionAttributes.ForceSync) != 0 ||
(message.IsSynchronous && (message.SecuritySessionParameters.Attributes & SecuritySessionAttributes.ForceAsync) == 0);
// the time until invocation times out
if (!message.FinishTime_Initialized)
{
TimeSpan messageTimeout = message.SecuritySessionParameters.Timeout;
if (messageTimeout == TimeSpan.MinValue)
{
messageTimeout = (TimeSpan)this.ITransportContext.IParameterProvider[GenuineParameter.InvocationTimeout];
}
message.FinishTime = GenuineUtility.GetTimeout(messageTimeout);
message.FinishTime_Initialized = true;
}
// checks whether the message has been already processed by Security Session
if (message.SerializedContent == null)
{
session = message.Recipient.GetSecuritySession(message.SecuritySessionParameters.Name, this.ITransportContext.IKeyStore);
if (!session.IsEstablished)
{
if (binaryLogWriter != null && binaryLogWriter[LogCategory.Security] > 0)
{
binaryLogWriter.WriteEvent(LogCategory.Security, "ConnectionManager.Send",
LogMessageType.SecuritySessionHasNotBeenEstablishedYet, null, message, message.Recipient, null,
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name,
session, session.Name, -1, 0, 0, 0, null, null, null, null,
"The requested Security Session is not established.");
}
session.InitiateEstablishingSecuritySession(message.SecuritySessionParameters);
// if it's a sync sending, then wait until security session will be established
if (message.IsSynchronous)
{
int timeSpanToWait = GenuineUtility.GetMillisecondsLeft(message.FinishTime);
if (timeSpanToWait <= 0)
{
throw GenuineExceptions.Get_Send_ServerDidNotReply();
}
// wait until Security Session will be established or a failure will be detected
int firedEvent = 0;
if (message.CancelSending != null)
{
firedEvent = WaitHandle.WaitAny(new WaitHandle[] { session.IsEstablishedEvent, session.Failed, message.CancelSending }, timeSpanToWait, false);
}
else
{
firedEvent = WaitHandle.WaitAny(new WaitHandle[] { session.IsEstablishedEvent, session.Failed }, timeSpanToWait, false);
}
if (firedEvent == WaitHandle.WaitTimeout)
{
throw GenuineExceptions.Get_Send_ServerDidNotReply();
}
// analyze the problem, if any
Exception exception = session.ReasonOfFailure;
if (firedEvent == 1)
{
if (exception != null)
{
throw OperationException.WrapException(exception);
}
else
{
throw GenuineExceptions.Get_Security_ContextWasNotEstablished(session.Name);
}
}
// if the message has been cancelled, let the sender to understand the reason
if (firedEvent == 2)
{
return;
}
}
else if (!session.IsEstablished)
{
// it's async and SS still isn't established
session.PutMessageToAwaitingQueue(message);
return;
}
}
}
// if serialization is necessary
if (message.SerializedContent == null)
{
// serialize the message
GenuineChunkedStream serializedMessageStream = new GenuineChunkedStream(false);
MessageCoder.Serialize(serializedMessageStream, message, (message.SecuritySessionParameters.Attributes & SecuritySessionAttributes.EnableCompression) != 0);
// save the name of the Security Session
GenuineChunkedStream resultStream = new GenuineChunkedStream(false);
BinaryWriter writer = new BinaryWriter(resultStream);
writer.Write(message.SecuritySessionParameters.Name);
session.Encrypt(serializedMessageStream, resultStream);
message.SerializedContent = resultStream;
// LOG: put down the log record
if (binaryLogWriter != null && binaryLogWriter[LogCategory.Security] > 0)
{
binaryLogWriter.WriteEvent(LogCategory.Security, "ConnectionManager.Send",
LogMessageType.SecuritySessionApplied, null, message, message.Recipient,
binaryLogWriter[LogCategory.Security] > 1 ? message.SerializedContent : null,
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name, session,
session.Name, -1, 0, 0, 0, null, null, null, null,
"The message has been processed by the established Security Session.");
}
}
#if TRIAL
if (message.MessageId > 3005)
{
throw GenuineExceptions.Get_Channel_TrialConditionExceeded("The maximum number of messages restriction has been exceeded. You can not send more than 3000 messages using TRIAL version.");
}
#endif
message.Sender = this.Local;
this.InternalSend(message);
}
catch (Exception ex)
{
if (binaryLogWriter != null && binaryLogWriter[LogCategory.Security] > 0)
{
binaryLogWriter.WriteEvent(LogCategory.MessageProcessing, "ConnectionManager.Send",
LogMessageType.Error, ex, message, message.Recipient, null,
GenuineUtility.CurrentThreadId, Thread.CurrentThread.Name,
null, null, -1, 0, 0, 0, null, null, null, null,
"An exception occurred while processing the message.");
}
throw;
}
}