/// <summary>
/// 加载指定的文件
/// </summary>
/// <param name="path">文件路径</param>
public void Load(string path, LoadFlag flag = LoadFlag.None)
{
Path = path;
using (var fs = new System.IO.FileStream(path, System.IO.FileMode.Open))
{
Load(fs, flag);
}
}
public void Load(Stream stream, LoadFlag flag = LoadFlag.None)
{
var tor = BencodeParser.Parse(Encoding.UTF8, stream);
TorrentBencodeAdapter.FillInfoFromFile(tor[0] as DictionaryDataType, this);
//加载Infobar区域的？
if ((LoadFlag.LoadInfoSectionData & flag) == LoadFlag.LoadInfoSectionData)
{
if (!stream.CanSeek)
{
throw new InvalidOperationException("stream can not be seeked.");
}
var data = MetaInfo.OriginalDataFragment;
MetaInfo.OriginalDataFragmentBuffer = new byte[(int)(data.DataEndPosition - data.DataStartPosition) + 1];
stream.Seek(data.DataStartPosition, SeekOrigin.Begin);
stream.Read(MetaInfo.OriginalDataFragmentBuffer, 0, MetaInfo.OriginalDataFragmentBuffer.Length);
}
if (flag.HasFlag(LoadFlag.ComputeMetaInfoHash))
{
var data = MetaInfo.OriginalDataFragment;
var buffer = MetaInfo.OriginalDataFragmentBuffer;
if (buffer == null)
{
if (!stream.CanSeek)
{
throw new InvalidOperationException("stream can not be seeked.");
}
buffer = new byte[(int)(data.DataEndPosition - data.DataStartPosition) + 1];
stream.Seek(data.DataStartPosition, SeekOrigin.Begin);
stream.Read(buffer, 0, buffer.Length);
}
var sha = SHA1.Create();
MetaInfoHash = sha.ComputeHash(buffer);
MetaInfoHashString = BitConverter.ToString(MetaInfoHash).Replace("-", "").ToUpper();
}
}
/// <summary>
/// 由指定的文件创建一个 <see cref="TorrentFile"/> 对象
/// </summary>
/// <param name="path"></param>
public TorrentFile(string path, LoadFlag flag = LoadFlag.None)
: this()
{
Load(path, flag);
}
