public void PostMessage(NntpMessage message)
{
Boolean wait = true;
while (wait)
{
lock (MessagesToPost)
{
if (MessagesToPost.Count <= configuration.MaxConnectionCount * 2)
{
if (MessagesToPost.Count >= configuration.MaxConnectionCount)
{
StartPostingThreadsIfNotStarted();
}
MessagesToPost.Enqueue(message);
wait = false;
}
}
if (wait)
{
lock (monitor)
{
if (!wait)
{
break;
}
Monitor.Wait(monitor, 1000);
}
}
}
}
private void PostPart(InntpMessagePoster poster, PostedFileInfo postedFileInfo, YEncFilePart part,
String subjectNameBase)
{
var message = new NntpMessage();
message.FromAddress = postedFileInfo.FromAddress;
message.Subject = String.Format(subjectNameBase, part.Number);
message.YEncFilePart = part;
message.PostInfo = postedFileInfo;
if (TotalParts > 1)
{
message.Prefix.Add(String.Format("=ybegin part={0} total={1} line={2} size={3} name={4}",
part.Number, TotalParts, configuration.YEncLineSize, File.Length, File.Name));
message.Prefix.Add(String.Format("=ypart begin={0} end={1}",
part.Begin, part.End));
message.Suffix.Add(String.Format("=yend size={0} part={1} pcrc32={2}",
part.Size, part.Number, part.CRC32));
}
else
{
message.Prefix.Add(String.Format("=ybegin line={0} size={1} name={2}",
configuration.YEncLineSize, File.Length, File.Name));
message.Suffix.Add(String.Format("=yend size={0} crc32={1}",
File.Length, part.CRC32));
}
poster.PostMessage(message);
}
private NntpMessage GetNextMessageToPost()
{
NntpMessage message = null;
log.Debug("GetNextMessageToPost started.");
lock (_messageQueue)
{
//log.Debug("Locked messageQueue");
var count = _messageQueue.Count;
log.DebugFormat("The messageQueue has {0} items.", count);
if (count > 0)
{
message = _messageQueue.Dequeue();
}
}
//log.Debug("Unlocked messageQueue");
if (message == null && !StopRequested) //If stop is requested it is logical the queue gets empty.
{
log.Warn("Posting thread is starved, reduce threads to make more optimal use of resources.");
}
return(message);
}
protected virtual void OnMessagePosted(NntpMessage e)
{
MessagePosted?.Invoke(this, e);
}
private void PostMessage(NntpMessage message)
{
var retryCount = 0;
var retry = true;
while (retry && retryCount < _configuration.MaxRetryCount)
{
try
{
if (_client == null)
{
log.Debug("Constructing new client.");
_client = new SimpleNntpPostingClient(_connectionInfo);
_client.Connect();
}
String proposedMessageID = null;
if (_folderConfiguration.GenerateRandomMessageId)
{
proposedMessageID = String.Format("<{0}@{1}.{2}>",
RandomStringGenerator.GetRandomString(20, 30), RandomStringGenerator.GetRandomString(5, 10), RandomStringGenerator.GetRandomString(3));
}
var partMessageId = _client.PostYEncMessage(
proposedMessageID,
message.FromAddress,
message.Subject,
message.PostInfo.PostedGroups,
message.PostInfo.PostedDateTime,
message.Prefix,
message.YEncFilePart.EncodedLines,
message.Suffix);
log.DebugFormat("Message [{0}] posted. Adding to segments.", message.Subject);
lock (message.PostInfo.Segments)
{
//log.Debug("Locked segments list.");
message.PostInfo.Segments.Add(new PostedFileSegment
{
MessageId = partMessageId,
Bytes = message.YEncFilePart.Size,
SegmentNumber = message.YEncFilePart.Number
});
}
//log.Debug("Unlocked segments list.");
retry = false;
OnMessagePosted(message);
}
catch (Exception ex)
{
if (_client != null) //If we get an Exception we close the connection
{
log.Debug("Disposing client because of exception.");
_client.Dispose();
_client = null;
}
log.Warn("Posting yEnc message failed", ex);
if (retryCount++ < _configuration.MaxRetryCount)
{
log.DebugFormat("Waiting {0} second(s) before retry.", _configuration.RetryDelaySeconds);
Thread.Sleep(new TimeSpan(0, 0, _configuration.RetryDelaySeconds));
log.InfoFormat("Retrying to post message, attempt {0}", retryCount);
}
else
{
log.Error("Maximum retry attempts reached. Posting is probably corrupt.");
}
}
}
}
void PostingThread_MessagePosted(object sender, NntpMessage e) //TODO propagate this further instead of yEnc part? (combine the two ?)
{
OnFilePartPosted(e.YEncFilePart);
}
