async Task SummarizeTorrent(FileInfo torrent)
{
var content = await File.ReadAllBytesAsync(torrent.FullName);
if (!BEnc.TryParseExpr(content, out var expr, out int read) ||
read != content.Length ||
expr == null)
{
Console.WriteLine($"Something went wrong reading {torrent.FullName} at offset {read}");
return;
}
var fileInfo = MetaInfoSerializer.Deserialize <TorrentFileDto>(expr);
byte[] infoHash = expr["info"] !.Hash();
Console.WriteLine($"Summary for '{fileInfo.Info.Name}'");
Console.WriteLine($"InfoHash: {Convert.ToHexString(infoHash)}");
var files = fileInfo.Info.Files;
if (files != null)
{
var maxNameLen = files.Select(f => string.Join('/', f.Path)).Max(name => name.Length);
foreach (var file in files)
{
var path = string.Join('/', file.Path);
Console.WriteLine($"{path.PadRight(maxNameLen + 2)} {Utils.FormatBytesize(file.Length)}");
}
}
Console.WriteLine($"Trackers:\n{string.Join("\n", fileInfo.AnnounceList.Select(t => string.Join(", ", t)))}");
}
public async Task SampleTorrentFileRoundtripTest()
{
var content = await File.ReadAllBytesAsync(SAMPLE_TORRENT);
Assert.IsTrue(BEnc.TryParseExpr(content.AsSpan(), out var value, out var consumed));
Assert.AreEqual(content.Length, consumed);
Assert.IsNotNull(value);
Console.WriteLine(value !.ToString());
var recoded = BEnc.EncodeBuffer(value);
Assert.AreEqual(content, recoded);
}
protected static async Task <(TorrentFileDto, BEnc)> GetTorrentFileDtoAsync(FileInfo torrent)
{
var content = await File.ReadAllBytesAsync(torrent.FullName);
if (!BEnc.TryParseExpr(content, out var expr, out var read) ||
expr == null ||
read != content.Length)
{
throw new ArgumentOutOfRangeException(nameof(torrent));
}
var dto = MetaInfoSerializer.Deserialize <TorrentFileDto>(expr);
return(dto, expr);
}
public async Task DeserializeToDtoTest()
{
var content = await File.ReadAllBytesAsync(SAMPLE_TORRENT);
Assert.IsTrue(BEnc.TryParseExpr(content.AsSpan(), out var value, out var consumed));
Assert.AreEqual(content.Length, consumed);
Assert.IsNotNull(value);
var file = MetaInfoSerializer.Deserialize <TorrentFileDto>(value !);
Assert.IsNotNull(file);
var info = file.Info;
Assert.IsNotNull(info);
Assert.IsNotNull(info.Files);
Assert.IsNotEmpty(info.Files);
Assert.IsNotNull(info.Files ![0].Path);