static void DecodeTorrentTest()
{
var path = @"F:\迅雷下载\种子\00da1247df008e88f04a79af1816ea07.torrent";
var bytes = File.ReadAllBytes(path);
var dic = (IDictionary <string, object>)BEncoder.Decode(bytes);
var info = (IDictionary <string, object>)dic["info"];
var name = (byte[])info["name"];
Console.WriteLine(Encoding.UTF8.GetString(name));
var files = (IList <object>)info["files"];
foreach (IDictionary <string, object> file in files)
{
foreach (var kv in file)
{
Console.WriteLine(kv.Key);
if (kv.Value is IList <object> list)
{
foreach (byte[] item in list)
{
Console.WriteLine(Encoding.UTF8.GetString(item));
}
}
else
{
Console.WriteLine(kv.Value);
}
}
}
Console.WriteLine(info);;
}
static void Test()
{
var lines = File.ReadAllLines(@"E:\Code\dotnetcore\dht\DhtCrawler\bin\Release\PublishOutput\torrent\B2960BC78CBBE627E43DCE0562C0DB6552F190A7");
foreach (var line in lines)
{
if (!line.StartsWith("files"))
{
continue;
}
var info = Encoding.UTF8.GetBytes(line.Split('\t')[1]);
var list = (IList <object>)BEncoder.Decode(info);
foreach (IDictionary <string, object> file in list)
{
foreach (var kv in file)
{
Console.Write(kv.Key);
Console.Write('\t');
if (kv.Value is IList <object> paths)
{
Console.Write(string.Join("/", paths.Select(path => Encoding.UTF8.GetString((byte[])path))));
}
else
{
Console.Write(kv.Value);
}
Console.WriteLine();
}
}
}
Assert.True(true);
}
static void DecodeTorrentTest()
{
var path = @"E:\Code\dotnetcore\dht\DhtCrawler.Test\xp1024.com_STP1179MP4.torrent";
var bytes = File.ReadAllBytes(path);
var dic = (IDictionary <string, object>)BEncoder.Decode(bytes);
var info = (IDictionary <string, object>)dic["info"];
var name = (byte[])info["name"];
Console.WriteLine(Encoding.UTF8.GetString(name));
var files = (IList <object>)info["files"];
foreach (IDictionary <string, object> file in files)
{
foreach (var kv in file)
{
Console.WriteLine(kv.Key);
if (kv.Value is IList <object> list)
{
foreach (byte[] item in list)
{
Console.WriteLine(Encoding.UTF8.GetString(item));
}
}
else
{
Console.WriteLine(kv.Value);
}
}
}
Console.WriteLine(info);
;
}
private async Task ProcessMsgData()
{
while (running)
{
if (!_recvMessageQueue.TryTake(out DhtData dhtData))
{
await Task.Delay(1000);
continue;
}
try
{
var dic = (Dictionary <string, object>)BEncoder.Decode(dhtData.Data);
var msg = new DhtMessage(dic);
switch (msg.MesageType)
{
case MessageType.Request:
var item = new Tuple <DhtMessage, IPEndPoint>(msg, dhtData.RemoteEndPoint);
_requestQueue.TryAdd(item);
break;
case MessageType.Response:
if (msg.MessageId.Length != 2)
{
continue;
}
var remotePoint = dhtData.RemoteEndPoint;
var responseNode = new DhtNode()
{
NodeId = (byte[])msg.Data["id"], Host = remotePoint.Address, Port = (ushort)remotePoint.Port
};
var flag = await MessageMap.RequireRegisteredInfoAsync(msg, responseNode);
if (!flag)
{
continue;
}
_responseQueue.TryAdd(new Tuple <DhtMessage, DhtNode>(msg, responseNode), 10);
break;
}
}
catch (Exception ex)
{
if (ex is DecodeException)
{
filterPeers.Add(dhtData.RemoteEndPoint.ToInt64());
continue;
}
_logger.Error($"ErrorData:{BitConverter.ToString(dhtData.Data)}", ex);
var response = new DhtMessage
{
MesageType = MessageType.Exception,
MessageId = new byte[] { 0, 0 }
};
response.Errors.Add(202);
response.Errors.Add("Server Error:" + ex.Message);
_sendMessageQueue.TryAdd(new Tuple <DhtMessage, DhtNode>(response, new DhtNode(dhtData.RemoteEndPoint)));
}
}
}
public static ExtHandHackMessage Decode(byte[] bytes)
{
var msgId = bytes[0]; //读取消息Id
var extId = bytes[1]; //读取扩展Id
var data = (IDictionary <string, object>)BEncoder.Decode(bytes.Skip(2).ToArray());
var msg = new ExtHandHackMessage(data);
return(msg);
}
static void TempTest()
{
var dir = @"F:\迅雷下载\种子\";
var paths = Directory.GetFiles(dir, "*.torrent");
var list = new List <KeyValuePair <string, long> >();
foreach (var path in paths)
{
long length = 0;
try
{
var bytes = File.ReadAllBytes(path);
var dic = (IDictionary <string, object>)BEncoder.Decode(bytes);
var info = (IDictionary <string, object>)dic["info"];
var name = (byte[])info["name"];
Console.WriteLine(Encoding.UTF8.GetString(name));
if (info.ContainsKey("files"))
{
var files = (IList <object>)info["files"];
foreach (IDictionary <string, object> file in files)
{
foreach (var kv in file)
{
if (kv.Key == "length")
{
length += Convert.ToInt64(kv.Value);
break;
}
}
}
}
else if (info.ContainsKey("length"))
{
length = Convert.ToInt64(info["length"]);
}
}
catch (Exception)
{
Console.WriteLine(path);
}
list.Add(new KeyValuePair <string, long>(path, length));
}
list.Sort((kv1, kv2) => (int)(kv1.Value - kv2.Value));
var step = list.Count / 10;
for (int j = 0; j < 10; j++)
{
var target = $@"F:\迅雷下载\种子\{j}";
Directory.CreateDirectory(target);
for (var i = step * j; i < list.Count; i++)
{
var item = list[i];
File.Move(item.Key, $@"{target}\\{item.Value}_{Path.GetFileName(item.Key)}");
}
}
}
static ExtHandHackMessage()
{
var headerAttribute = new Dictionary <string, object>(1)
{
{ UtMetadataKey, 1 }
};
var header = new Dictionary <string, object>(1)
{
{ MethodKey, headerAttribute }
};
ExtendHeader = BEncoder.EncodeObject(header);
}
static void EncodeTest()
{
var str =
"64-31-3A-65-6C-69-32-30-33-65-31-34-3A-45-72-72-6F-72-20-50-72-6F-74-6F-63-6F-6C-65-31-3A-74".Split('-');
var bytes = new List <byte>();
foreach (var s in str)
{
bytes.Add(Convert.ToByte(s, 16));
}
var dic = BEncoder.Decode(bytes.ToArray());
Console.WriteLine(dic);
Assert.True(true);
}
public override byte[] Encode()
{
//1.写入包长度
//2.写入msgId
//3.写入extTypeId
//4.写入字典
using (var stream = new MemoryStream())
{
stream.Write(BitConverter.IsLittleEndian ? BitConverter.GetBytes(Length).Reverse().ToArray() : BitConverter.GetBytes(Length), 0, 4);
stream.WriteByte(20);
stream.WriteByte(ExtTypeID);
BEncoder.EncodeObject(Parameters, stream);
return(stream.ToArray());
}
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
public override void ExecuteResult(ControllerContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
var res = new Dictionary <string, object>
{
{
"failure reason",
Message
}
};
var response = context.HttpContext.Response;
response.Write(BEncoder.BEncodeDictionary(res));
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
public override void ExecuteResult(ControllerContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
var res = new Dictionary <string, object>
{
{
"interval",
Interval
},
{
"peers",
Peers
}
};
var response = context.HttpContext.Response;
response.Write(BEncoder.BEncodeDictionary(res));
response.End();
}
//
// GET: /Announce/Announce/
// GET: /announce/123af0c917876f6d4711654b2293895f
public ActionResult Announce(AnnounceModel announceModel)
{
if (!announceModel.IsValidRequest())
{
return(new BTErrorResult("Invalid request (see specification: http://bit.ly/bcYmSu)"));
}
if (!Regex.IsMatch(announceModel.Passkey, "[0-9a-fA-F]{32}"))
{
return(new BTErrorResult("Invalid passkey."));
}
if (BLACKLIST_PORTS && IsPortBlackListed(Convert.ToInt32(announceModel.port)))
{
return(new BTErrorResult(string.Format("Port {0} is blacklisted", announceModel.port)));
}
try
{
using (var context = new OpenTrackerDbContext())
{
var crntUser = (from u in context.users
where u.passkey == announceModel.Passkey
select u).Take(1).FirstOrDefault();
if (crntUser == null)
{
return(new BTErrorResult(string.Format("Unknown passkey. Please re-download the torrent from {0}.",
TrackerSettings.BASE_URL)));
}
if (crntUser.activated == 0)
{
return(new BTErrorResult("Permission denied, you\'re not activated."));
}
var seeder = false;
if (announceModel.left == 0)
{
seeder = true;
}
// Entity Framework does not support BINARY keys
var EncodedPeerId = Convert.ToBase64String(Encoding.ASCII.GetBytes(announceModel.peer_id));
var EncodedInfoHash = BEncoder.FormatUrlInfoHash();
var torrentExist = (from t in context.torrents
where t.info_hash == EncodedInfoHash
select t).Take(1).FirstOrDefault();
if (torrentExist == null)
{
return(new BTErrorResult("Torrent not registered with this tracker."));
}
var peerAlreadyExist = (from t in context.peers
where t.torrentid == torrentExist.id &&
t.peer_id == EncodedPeerId &&
t.passkey == announceModel.Passkey
select t).Take(1);
var existingPeerCount = peerAlreadyExist.Count();
peers p;
if (existingPeerCount == 1)
{
p = peerAlreadyExist.First();
}
else
{
var connectionLimit = (from t in context.peers
where t.torrentid == torrentExist.id &&
t.passkey == announceModel.Passkey
select t).Count();
if (connectionLimit >= 1 && !seeder)
{
return(new BTErrorResult("Connection limit exceeded! " +
"You may only leech from one location at a time."));
}
if (connectionLimit >= 3 && seeder)
{
return(new BTErrorResult("Connection limit exceeded."));
}
if (announceModel.left > 0 && crntUser.@class < (decimal)AccountValidation.Class.Administrator)
{
var epoch = Unix.ConvertToUnixTimestamp(DateTime.UtcNow);
var elapsed = Math.Floor((epoch - torrentExist.added) / 3600);
var uploadedGigs = crntUser.uploaded / (1024 * 1024 * 1024);
var ratio = ((crntUser.downloaded > 0) ? (crntUser.uploaded / crntUser.downloaded) : 1);
int wait;
if (ratio < (decimal)0.5 || uploadedGigs < 5)
{
wait = 48;
}
else if (ratio < (decimal)0.65 || uploadedGigs < (decimal)6.5)
{
wait = 24;
}
else if (ratio < (decimal)0.8 || uploadedGigs < 8)
{
wait = 12;
}
else if (ratio < (decimal)0.95 || uploadedGigs < (decimal)9.5)
{
wait = 6;
}
else
{
wait = 0;
}
if (elapsed < wait)
{
return(new BTErrorResult(string.Format("Not authorized (wait {0}h) - READ THE FAQ!",
(wait - elapsed))));
}
}
p = new peers
{
torrentid = torrentExist.id,
peer_id = EncodedPeerId,
userid = crntUser.id,
passkey = announceModel.Passkey,
useragent = Request.UserAgent
};
}
var remoteHost = Request.ServerVariables["REMOTE_HOST"];
var ip = !string.IsNullOrEmpty(announceModel.ip) ? announceModel.ip : remoteHost;
if (CHECK_CONNECTABLE)
{
p.connectable = IsConnectable(ip, Convert.ToInt32(announceModel.port)) ? 1 : 0;
}
if (announceModel.left != null)
{
p.left = (decimal)announceModel.left;
}
p.port = Convert.ToInt32(announceModel.port);
p.ip = ip;
p.seeding = seeder ? 1 : 0;
if (existingPeerCount == 0)
{
context.AddTopeers(p);
}
else
{
if (crntUser.@class < (decimal)AccountValidation.Class.Administrator)
{
var nonUpdatedPeer = peerAlreadyExist.First();
var thisUploaded = (announceModel.uploaded - nonUpdatedPeer.uploaded);
var thisDownloaded = (announceModel.downloaded - nonUpdatedPeer.downloaded);
p.uploaded += (decimal)thisUploaded;
p.downloaded += (decimal)thisDownloaded;
if (thisUploaded > 0)
{
crntUser.uploaded = (crntUser.uploaded + Convert.ToInt64(thisUploaded));
}
if (thisDownloaded > 0)
{
crntUser.downloaded = (crntUser.downloaded + Convert.ToInt64(thisDownloaded));
}
}
if (announceModel.Event == "completed")
{
torrentExist.snatches = torrentExist.snatches + 1; // torrentExist.snatches++;
}
}
context.SaveChanges();
if (announceModel.Event == "stopped")
{
var removePeer = (from pr in context.peers
where pr.torrentid == torrentExist.id &&
pr.peer_id == EncodedPeerId
select pr).Take(1).FirstOrDefault();
context.peers.DeleteObject(removePeer);
context.SaveChanges();
var announceResultStop = new AnnounceResult
{
Interval = ANNOUNCE_INTERVAL
};
return(announceResultStop);
}
var announceResult = new AnnounceResult
{
Interval = ANNOUNCE_INTERVAL
};
var existingPeers = (from t in context.peers
where t.torrentid == torrentExist.id
select t).ToList();
foreach (var peer in existingPeers)
{
announceResult.AddPeer(peer.peer_id, peer.ip, peer.port);
}
return(announceResult);
}
}
catch (Exception)
{
return(new BTErrorResult("Database unavailable"));
}
}
public byte[] BEncodeBytes()
{
return(BEncoder.EncodeObject(_message));
}