public PostedFileInfo PostYEncFile(InntpMessagePoster poster, String prefix, String suffix)
{
PostedFileInfo postedFileInfo = new PostedFileInfo();
String subjectNameBase = ConstructSubjectNameBase(prefix, suffix);
postedFileInfo.NzbSubjectName = String.Format(subjectNameBase, 1);
postedFileInfo.PostedGroups.AddRange(folderConfiguration.TargetNewsgroups);
postedFileInfo.PostedDateTime = DateTime.Now;
var yEncoder = new YEncEncoder();
Int32 partNumber = 0;
using (var fileStream = File.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
while (fileStream.Position < fileStream.Length - 1) //If we have more blocks to encode.
{
partNumber++;
Byte[] partBuffer = new Byte[partSize];
Int32 partBufferPos = 0;
Int32 bytesRead = 0;
CRC32 partCRCCalculator = new CRC32();
var part = new YEncFilePart();
part.SourcefileName = File.Name;
part.Number = partNumber;
part.Begin = fileStream.Position + 1;
while (partBufferPos < partSize - 1 &&
(bytesRead = fileStream.Read(partBuffer, partBufferPos, partSize - partBufferPos)) > 0)
{
partBufferPos += bytesRead;
}
//TODO: this can be split in 2 threads to spread out CPU usage.
part.EncodedLines = yEncoder.EncodeBlock(configuration.YEncLineSize, partBuffer, 0, partBufferPos);
partCRCCalculator.TransformFinalBlock(partBuffer, 0, partBufferPos);
part.CRC32 = partCRCCalculator.HashAsHexString;
part.End = fileStream.Position;
PostPart(poster, postedFileInfo, part, subjectNameBase);
}
}
return postedFileInfo;
}
protected virtual void OnFilePartPosted(YEncFilePart e)
{
lock (monitor)
{
Monitor.Pulse(monitor);
}
if (PartPosted != null) PartPosted(this, e);
}
void poster_PartPosted(object sender, YEncFilePart e)
{
Int32 _uploadedPartCount;
Int64 _totalUploadedBytes;
lock (UploadLock)
{
UploadedPartCount++;
_uploadedPartCount = UploadedPartCount;
TotalUploadedBytes += e.Size;
_totalUploadedBytes = TotalUploadedBytes;
}
TimeSpan timeElapsed = DateTime.Now - UploadStartTime;
Double speed = (Double) _totalUploadedBytes/timeElapsed.TotalSeconds;
OnNewUploadSpeedReport(new UploadSpeedReport{
TotalParts = TotalPartCount,
UploadedParts = _uploadedPartCount,
BytesPerSecond = speed,
CurrentlyPostingName = e.SourcefileName
});
}
private void PostPart(InntpMessagePoster poster, PostedFileInfo postedFileInfo, YEncFilePart part,
String subjectNameBase)
{
var message = new nntpMessage();
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);
}
