private void CheckInfoFiles(BencodedList files)
{
if (files == null)
{
throw new TorrentException("Invalid metadata, \'files\' not of expected type.");
}
}
/// <summary>
/// Creates a .torrent file with the given data.
/// </summary>
/// <param name="name">The name of the file.</param>
/// <param name="inputFiles">A List'string containing all the files to be added to the .torrent file.</param>
/// <param name="filesDir">The root directory of all the files in the .torrent file.</param>
/// <param name="announce">The announce URL of the tracker, in which the .torrent file will be uploaded to.</param>
/// <param name="announceList">A list of announce URLs.</param>
/// <param name="pieceLength">The number of bytes in each piece.</param>
/// <param name="pieces">A list of strings consisting of the concatenation of all 20-byte SHA1 hash values.</param>
/// <returns>A string representig the content of the .torrent file.</returns>
public static string Create(string name, List <FileEntry> inputFiles, string filesDir, string announce,
List <string> announceList, int pieceLength, List <byte[]> pieces)
{
var clientVersion = Global.Instance.Version;
var res = new BencodedDictionary();
res.Add("announce", new BencodedString(announce));
var alist = new BencodedList();
announceList.ForEach(a => alist.Add(new BencodedList {
new BencodedString(a)
}));
res.Add("announce-list", alist);
res.Add("created by", new BencodedString("rtTorrent/" + clientVersion));
res.Add("creation date", new BencodedInteger(GetUnixTime()));
res.Add("encoding", new BencodedString("UTF-8"));
var info = new BencodedDictionary();
info.Add("piece length", new BencodedInteger(pieceLength));
var piecesString = new StringBuilder();
pieces.ForEach(piece => piece.ForEach(b => piecesString.Append((char)b)));
info.Add("pieces", new BencodedString(piecesString.ToString()));
//"1" - the client MUST publish its presence to get other peers ONLY via the trackers explicitly described in the metainfo file
//"0" - the client may obtain peer from other means, e.g. PEX peer exchange, dht. Here, "private" may be read as "no external peer source".
//info.Add("private", new BencodedInteger(0));
if (inputFiles.Count == 1)
{
info.Add("name", new BencodedString(name));
info.Add("length", new BencodedInteger(inputFiles[0].Length));
//MD5 hash of the file should be added here. The BitTorrent protocol specifies it as NOT needed.
}
else
{
info.Add("name", new BencodedString(filesDir));
var files = new BencodedList();
foreach (var inputFile in inputFiles)
{
var aFile = new BencodedDictionary();
aFile.Add("length", new BencodedInteger(inputFile.Length));
var filePath = new BencodedList();
inputFile.Name.Split(Path.DirectorySeparatorChar).ForEach(
dir => filePath.Add(new BencodedString(dir)));
aFile.Add("path", filePath);
files.Add(aFile);
}
info.Add("files", files);
}
res.Add("info", info);
return(res.ToString());
}
private List <string> DecodeAnnounceList(BencodedList announceList)
{
var list = new List <string>();
foreach (BencodedList urllist in announceList)
{
list.Add((BencodedString)urllist.First());
}
return(list);
}
private List<string> DecodeAnnounceList(BencodedList announceList)
{
var list = new List<string>();
foreach (BencodedList urllist in announceList)
{
list.Add((BencodedString) urllist.First());
}
return list;
}
private void CheckInfoFiles(BencodedList files)
{
if (files == null)
throw new TorrentException(string.Format("Invalid metadata, 'files' not of expected type."));
}
/// <summary>
/// Creates a .torrent file with the given data.
/// </summary>
/// <param name="name">The name of the file.</param>
/// <param name="inputFiles">A List'string containing all the files to be added to the .torrent file.</param>
/// <param name="filesDir">The root directory of all the files in the .torrent file.</param>
/// <param name="announce">The announce URL of the tracker, in which the .torrent file will be uploaded to.</param>
/// <param name="announceList">A list of announce URLs.</param>
/// <param name="pieceLength">The number of bytes in each piece.</param>
/// <param name="pieces">A list of strings consisting of the concatenation of all 20-byte SHA1 hash values.</param>
/// <returns>A string representig the content of the .torrent file.</returns>
public static string Create(string name, List<FileEntry> inputFiles, string filesDir, string announce,
List<string> announceList, int pieceLength, List<byte[]> pieces)
{
Contract.Requires(name != null);
Contract.Requires(inputFiles != null);
Contract.Requires(inputFiles.Count >= 1);
Contract.Requires(announce != null);
Contract.Requires(pieces != null);
var clientVersion = Global.Instance.Version;
var res = new BencodedDictionary();
res.Add("announce", new BencodedString(announce));
var alist = new BencodedList();
announceList.ForEach(a => alist.Add(new BencodedList {new BencodedString(a)}));
res.Add("announce-list", alist);
res.Add("created by", new BencodedString("rtTorrent/" + clientVersion));
res.Add("creation date", new BencodedInteger(GetUnixTime()));
res.Add("encoding", new BencodedString("UTF-8"));
var info = new BencodedDictionary();
info.Add("piece length", new BencodedInteger(pieceLength));
var piecesString = new StringBuilder();
pieces.ForEach(piece => piece.ForEach(b => piecesString.Append((char) b)));
info.Add("pieces", new BencodedString(piecesString.ToString()));
//"1" - the client MUST publish its presence to get other peers ONLY via the trackers explicitly described in the metainfo file
//"0" - the client may obtain peer from other means, e.g. PEX peer exchange, dht. Here, "private" may be read as "no external peer source".
//info.Add("private", new BencodedInteger(0));
if (inputFiles.Count == 1)
{
info.Add("name", new BencodedString(name));
info.Add("length", new BencodedInteger(inputFiles[0].Length));
//MD5 hash of the file should be added here. The BitTorrent protocol specifies it as NOT needed.
}
else
{
info.Add("name", new BencodedString(filesDir));
var files = new BencodedList();
foreach (FileEntry inputFile in inputFiles)
{
var aFile = new BencodedDictionary();
aFile.Add("length", new BencodedInteger(inputFile.Length));
var filePath = new BencodedList();
inputFile.Name.Split(Path.DirectorySeparatorChar).ForEach(
dir => filePath.Add(new BencodedString(dir)));
aFile.Add("path", filePath);
files.Add(aFile);
}
info.Add("files", files);
}
res.Add("info", info);
return res.ToString();
}
