// Token: 0x0600014F RID: 335 RVA: 0x00008054 File Offset: 0x00006254
private void HandleCancellation(AsyncResult <ImapConnectionContext, ImapResultData> curOp)
{
ImapNetworkFacade.CountCommand(curOp, false);
this.Log.Error("networkFacade operation cancelled. Dropped connection.", new object[0]);
Exception canceledException = AsyncOperationResult <ImapResultData> .CanceledException;
curOp.ProcessCompleted(new ImapConnectionException(string.Empty, RetryPolicy.Backoff, canceledException));
}
// Token: 0x0600014A RID: 330 RVA: 0x00007AA4 File Offset: 0x00005CA4
private void OnReadMoreResponse(IAsyncResult asyncResult)
{
lock (this.syncRoot)
{
if (this.ShouldCancelCallback())
{
NetworkConnection networkConnection = this.ExtractNetworkConnectionFrom(asyncResult);
byte[] data;
int offset;
int num;
object obj2;
networkConnection.EndRead(asyncResult, out data, out offset, out num, out obj2);
}
else
{
base.CheckDisposed();
AsyncResult <ImapConnectionContext, ImapResultData> asyncResult2 = (AsyncResult <ImapConnectionContext, ImapResultData>)asyncResult.AsyncState;
ImapResponse imapResponse = this.currentResponse;
byte[] data;
int offset;
int num;
object obj2;
this.networkConnection.EndRead(asyncResult, out data, out offset, out num, out obj2);
if (obj2 != null)
{
ImapNetworkFacade.HandleError(obj2, asyncResult2);
}
else if (this.cancellationRequested)
{
this.HandleCancellation(asyncResult2);
}
else
{
ExTraceGlobals.FaultInjectionTracer.TraceTest(2674273597U);
this.totalBytesReceived += (long)num;
DownloadCompleteEventArgs eventArgs = new DownloadCompleteEventArgs((long)num, 0L);
asyncResult2.State.ActivatePerfDownloadEvent(asyncResult2.State, eventArgs);
if (this.totalBytesReceived > this.connectionParameters.MaxBytesToTransfer)
{
ImapNetworkFacade.HandleError(ImapNetworkFacade.MaxBytesReceivedExceeded(), asyncResult2);
}
else
{
int num2 = imapResponse.AddData(data, offset, num);
int num3 = num - num2;
this.Log.Assert(num3 >= 0, "The unconsumed bytes must be non-negative.", new object[0]);
if (num3 > 0)
{
this.networkConnection.PutBackReceivedBytes(num3);
}
if (imapResponse.IsComplete)
{
ImapNetworkFacade.CountCommand(asyncResult2, true);
asyncResult2.State.Log.Debug("Command complete: [{0}]. Status = {1}", new object[]
{
this.currentCommand.ToPiiCleanString(),
imapResponse.Status
});
this.currentResultData.Status = imapResponse.Status;
if (asyncResult.CompletedSynchronously)
{
asyncResult2.SetCompletedSynchronously();
}
if (imapResponse.Status == ImapStatus.No || imapResponse.Status == ImapStatus.Bad || imapResponse.Status == ImapStatus.Bye)
{
this.LogFailureDetails(this.currentCommand, imapResponse);
asyncResult2.ProcessCompleted(this.currentResultData);
}
else if (imapResponse.Status != ImapStatus.Ok)
{
this.LogFailureDetails(this.currentCommand, imapResponse);
asyncResult2.ProcessCompleted(this.BuildAndLogUnknownCommandFailureException(asyncResult2.State));
}
else
{
if (!imapResponse.TryParseIntoResult(this.currentCommand, ref this.currentResultData))
{
if (this.currentResultData.FailureException == null)
{
if (this.currentResultData.MessageStream != null)
{
this.totalMessagesReceived += 1UL;
}
asyncResult2.ProcessCompleted(this.currentResultData, this.BuildAndLogUnknownParseFailureException(asyncResult2.State));
return;
}
ImapUtilities.LogExceptionDetails(asyncResult2.State.Log, this.currentCommand, this.currentResultData.FailureException);
this.LogFailureDetails(this.currentCommand, this.currentResponse);
}
else
{
asyncResult2.State.Log.Debug("Parsed server response succesfully.", new object[0]);
}
asyncResult2.ProcessCompleted(this.currentResultData);
}
}
else if (imapResponse.IsWaitingForLiteral)
{
Exception ex = null;
Stream commandParameterStream = this.currentCommand.GetCommandParameterStream(this.serverParameters.Server, imapResponse.GetLastResponseLine(), out ex);
if (ex != null)
{
if (commandParameterStream != null)
{
commandParameterStream.Close();
}
ImapNetworkFacade.CountCommand(asyncResult2, false);
asyncResult2.ProcessCompleted(ex);
}
else if (commandParameterStream == null)
{
ImapNetworkFacade.CountCommand(asyncResult2, false);
asyncResult2.ProcessCompleted(this.BuildAndLogUnexpectedLiteralRequestException(asyncResult2.State));
}
else
{
this.totalBytesSent += commandParameterStream.Length;
if (this.totalBytesSent > this.connectionParameters.MaxBytesToTransfer)
{
ImapNetworkFacade.HandleError(ImapNetworkFacade.MaxBytesSentExceeded(), asyncResult2);
}
else
{
eventArgs = new DownloadCompleteEventArgs(0L, commandParameterStream.Length);
asyncResult2.State.ActivatePerfDownloadEvent(asyncResult2.State, eventArgs);
asyncResult2.State.Log.Debug("Begin writing literal stream.", new object[0]);
asyncResult2.PendingAsyncResult = this.networkConnection.BeginWrite(commandParameterStream, new AsyncCallback(this.OnEndWriteLiteral), asyncResult2);
}
}
}
else if (imapResponse.TotalLiteralBytesExpected > 0 && this.totalBytesReceived + (long)imapResponse.LiteralBytesRemaining > this.connectionParameters.MaxBytesToTransfer)
{
this.totalBytesReceived += (long)imapResponse.LiteralBytesRemaining;
ImapNetworkFacade.HandleError(ImapNetworkFacade.MaxBytesReceivedExceeded(), asyncResult2);
}
else
{
asyncResult2.PendingAsyncResult = this.BeginNetworkRead(asyncResult2, new AsyncCallback(this.OnReadMoreResponse));
}
}
}
}
}
}
// Token: 0x06000141 RID: 321 RVA: 0x00006FEC File Offset: 0x000051EC
private static void HandleError(object errorCode, AsyncResult <ImapConnectionContext, ImapResultData> curOp)
{
ImapNetworkFacade.CountCommand(curOp, false);
if (errorCode is ConnectionsPermanentException || errorCode is ConnectionsTransientException)
{
curOp.State.Log.Error("Exception while communicating: {0}.", new object[]
{
errorCode
});
curOp.ProcessCompleted((Exception)errorCode);
return;
}
ImapNetworkFacade imapNetworkFacade = (ImapNetworkFacade)curOp.State.NetworkFacade;
if (imapNetworkFacade.networkConnection != null)
{
imapNetworkFacade.networkConnection.Shutdown();
imapNetworkFacade.isNetworkConnectionShutdown = true;
}
if (errorCode is SocketError)
{
switch ((SocketError)errorCode)
{
case SocketError.Shutdown:
curOp.State.Log.Error("Network connection shut down: {0}.", new object[]
{
errorCode
});
curOp.ProcessCompleted(ImapNetworkFacade.BuildConnectionShutdownException());
return;
case SocketError.TimedOut:
curOp.State.Log.Error("Operation timed out, shutting down network connection: {0}.", new object[]
{
errorCode
});
curOp.ProcessCompleted(ImapNetworkFacade.BuildTimeoutException());
return;
}
curOp.State.Log.Error("HandleError unhandled SocketError={0}, shutting down network connection.", new object[]
{
((SocketError)errorCode).ToString()
});
curOp.ProcessCompleted(ImapNetworkFacade.BuildUnknownNetworkException());
return;
}
if (errorCode is SecurityStatus)
{
curOp.State.Log.Error("ImapNetworkFacade.HandleError (SecurityStatus={0}), shutting down network connection.", new object[]
{
errorCode
});
LocalizedString value = CXStrings.TlsFailureOccurredError(((SecurityStatus)errorCode).ToString());
TlsFailureException innerException = new TlsFailureException(value);
curOp.ProcessCompleted(new ImapConnectionException(CXStrings.ImapSecurityStatusError, RetryPolicy.Backoff, innerException));
return;
}
curOp.State.Log.Error("HandleError unknown error type (error={0}), shutting down network connection.", new object[]
{
errorCode
});
curOp.ProcessCompleted(ImapNetworkFacade.BuildUnknownNetworkException());
}