| public Read ( byte buffer, int offset, int count ) : int | ||
| buffer | byte | |
| offset | int | |
| count | int | |
| return | int | |
/// <summary>
/// Decodes a BEncodedString from the supplied StreamReader
/// </summary>
/// <param name="reader">The StreamReader containing the BEncodedString</param>
internal override void DecodeInternal(RawReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
int letterCount;
var length = string.Empty;
while ((reader.PeekByte() != -1) && (reader.PeekByte() != ':')) // read in how many characters
{
length += (char)reader.ReadByte(); // the string is
}
if (reader.ReadByte() != ':') // remove the ':'
{
throw new BEncodingException("Invalid data found. Aborting");
}
if (!int.TryParse(length, out letterCount))
{
throw new BEncodingException(
string.Format("Invalid BEncodedString. Length was '{0}' instead of a number", length));
}
TextBytes = new byte[letterCount];
if (reader.Read(TextBytes, 0, letterCount) != letterCount)
{
throw new BEncodingException("Couldn't decode string");
}
}
public override void Decode(byte[] buffer, int offset, int length)
{
using (var reader = new RawReader(new MemoryStream(buffer, offset, length, false), false))
{
var d = BEncodedValue.Decode<BEncodedDictionary>(reader);
BEncodedValue val;
if (d.TryGetValue(MessageTypeKey, out val))
MetadataMessageType = (eMessageType) ((BEncodedNumber) val).Number;
if (d.TryGetValue(PieceKey, out val))
Piece = (int) ((BEncodedNumber) val).Number;
if (d.TryGetValue(TotalSizeKey, out val))
{
var totalSize = (int) ((BEncodedNumber) val).Number;
MetadataPiece = new byte[Math.Min(totalSize - Piece*BlockSize, BlockSize)];
reader.Read(MetadataPiece, 0, MetadataPiece.Length);
}
}
}