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Tweaks

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Kieran 2023-03-04 18:50:07 +00:00
parent 8bb7064963
commit 5bf357bf4b
Signed by: Kieran
GPG Key ID: DE71CEB3925BE941
1 changed files with 9 additions and 6 deletions
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15
VoidCat/Model/Extensions.cs
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@ -277,7 +277,8 @@ public static class Extensions
public static async Task<Torrent> MakeTorrent(this FileMeta meta, Stream fileStream, Uri baseAddress) public static async Task<Torrent> MakeTorrent(this FileMeta meta, Stream fileStream, Uri baseAddress)
{ {
const int pieceSize = 16_384; const int pieceSize = 262_144;
const int pieceHashLen = 20;
var webSeed = new UriBuilder(baseAddress) var webSeed = new UriBuilder(baseAddress)
{ {
Path = $"/d/{meta.Id.ToBase58()}" Path = $"/d/{meta.Id.ToBase58()}"
@ -286,15 +287,17 @@ public static class Extensions
async Task<byte[]> BuildPieces() async Task<byte[]> BuildPieces()
{ {
fileStream.Seek(0, SeekOrigin.Begin); fileStream.Seek(0, SeekOrigin.Begin);
var hashes = new List<byte[]>(); var chunks = (int)Math.Ceiling(meta.Size / (decimal)pieceSize);
var hashes = new byte[pieceHashLen * chunks];
var chunk = new byte[pieceSize]; var chunk = new byte[pieceSize];
for (var x = 0; x < (int)Math.Ceiling(meta.Size / (decimal)pieceSize); x++) for (var x = 0; x < chunks; x++)
{ {
var rLen = await fileStream.ReadAsync(chunk, 0, chunk.Length); var rLen = await fileStream.ReadAsync(chunk, 0, chunk.Length);
hashes.Add(SHA1.HashData(chunk.AsSpan(0, rLen))); var hash = SHA1.HashData(chunk.AsSpan(0, rLen));
Buffer.BlockCopy(hash, 0, hashes, x * pieceHashLen, pieceHashLen);
} }
return hashes.SelectMany(a => a).ToArray(); return hashes;
} }
// build magnet link // build magnet link
@ -305,7 +308,7 @@ public static class Extensions
FileName = meta.Name, FileName = meta.Name,
FileSize = (long)meta.Size FileSize = (long)meta.Size
}, },
Comment = meta.Description, Comment = meta.Name,
CreationDate = meta.Uploaded.UtcDateTime, CreationDate = meta.Uploaded.UtcDateTime,
IsPrivate = false, IsPrivate = false,
PieceSize = pieceSize, PieceSize = pieceSize,