public byte[] Serialize()
{
var dict = new BDictionary
{
["msg_type"] = new BNumber((int)RequestType),
["piece"] = new BNumber(PieceIndex)
};
if (RequestType == Type.Data)
{
dict["total_size"] = new BNumber(TotalSize);
}
using (var ms = new MemoryStream())
{
dict.EncodeTo(ms);
if (RequestType == Type.Data)
{
ms.Write(PieceData, 0, PieceData.Length);
}
return(ms.ToArray());
}
}
/// <summary>
/// Calculates the hash of the 'info'-dictionary.
/// The info hash is a 20-byte SHA1 hash of the 'info'-dictionary of the torrent
/// used to uniquely identify it and it's contents.
///
/// <para>Example: 6D60711ECF005C1147D8973A67F31A11454AB3F5</para>
/// </summary>
/// <param name="info">The 'info'-dictionary of a torrent.</param>
/// <returns>A byte-array of the 20-byte SHA1 hash.</returns>
public static byte[] CalculateInfoHashBytes(BDictionary info)
{
using (var sha1 = SHA1.Create())
using (var stream = new MemoryStream()) {
info.EncodeTo(stream);
stream.Position = 0;
return(sha1.ComputeHash(stream));
}
}
public void SaveSession(BitArray pieces)
{
var dictionary = new BDictionary();
string state = "";
for (int i = 0; i < pieces.Count; i++)
{
state += pieces[i] ? "1" : "0";
}
dictionary.Add(Path.GetFileName(torrentCopyName), new BString(state));
infoFile.SetLength(0);
dictionary.EncodeTo(infoFile);
}
public byte[] Serialize()
{
var dict = new BDictionary
{
["added"] = EncodeEndPoints(Added),
["dropped"] = EncodeEndPoints(Dropped),
};
using (var ms = new MemoryStream())
{
dict.EncodeTo(ms);
return(ms.ToArray());
}
}
public async Task WriteToPipeWriter()
{
var dict = new BDictionary {
{ "key", "value" }
};
var(reader, writer) = new Pipe();
dict.EncodeTo(writer);
await writer.FlushAsync();
reader.TryRead(out var readResult);
var result = Encoding.UTF8.GetString(readResult.Buffer.First.Span.ToArray());
result.Should().Be("d3:key5:valuee");
}
