public static uint WorkerVardiffDifficulty(ConnectedWorker worker)
{
double aTargetTime = int.Parse(Statics.Config.IniReadValue("vardiff-targettime-seconds"));
uint returnValue = 0;
// Don't keep it no zone forever
if ((DateTime.Now - worker.LastShare).TotalSeconds > aTargetTime)
{
double deviance = 100 - (((DateTime.Now - worker.LastShare).Seconds * 100) / aTargetTime);
if (Math.Abs(deviance) > int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation")))
{
deviance = -int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation"));
}
returnValue = (uint)((worker.LastDifficulty * (100 + deviance)) / 100);
}
else
{
//We calculate average of last 4 shares.
double aTime = worker.ShareDifficulty.Skip(worker.ShareDifficulty.Count - 4).Take(4).Sum(x => x.Key.TotalSeconds) / 4;
double deviance = 100 -
((aTime * 100) / int.Parse(Statics.Config.IniReadValue("vardiff-targettime-seconds")));
if (Math.Abs(deviance) < int.Parse(Statics.Config.IniReadValue("vardiff-targettime-deviation-allowed")))
{
returnValue = worker.LastDifficulty;
}
else if (deviance > 0)
{
if (deviance > int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation")))
{
deviance = int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation"));
}
returnValue = (uint)((worker.LastDifficulty * (100 + deviance)) / 100);
}
else
{
if (Math.Abs(deviance) > int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation")))
{
deviance = -int.Parse(Statics.Config.IniReadValue("vardiff-targettime-maxdeviation"));
}
returnValue = (uint)((worker.LastDifficulty * (100 + deviance)) / 100);
}
}
if (returnValue < uint.Parse(Statics.Config.IniReadValue("base-difficulty")))
{
returnValue = uint.Parse(Statics.Config.IniReadValue("base-difficulty"));
}
else if (returnValue > uint.Parse(Statics.Config.IniReadValue("vardiff-max-difficulty")))
{
returnValue = uint.Parse(Statics.Config.IniReadValue("vardiff-max-difficulty"));
}
Logger.Log(Logger.LogLevel.Debug, "Returning new difficulty if {0} vs previous {1}", returnValue, worker.LastDifficulty);
return(returnValue);
}
public static void GenerateGetJobResponse(ref JObject response, string guid)
{
JObject job = new JObject();
ConnectedWorker worker = Statics.ConnectedClients.First(x => x.Key == guid).Value;
worker.LastSeen = DateTime.Now;
/*if (worker.ShareDifficulty.Count >= 4)
* worker.LastDifficulty = Helpers.WorkerVardiffDifficulty(worker); */
Logger.Log(Logger.LogLevel.General, "Getwork request from {0}", guid);
//result["id"] = guid;
int seed = 0;
if (worker.PendingDifficulty != worker.LastDifficulty || worker.CurrentBlock != Statics.CurrentBlockHeight)
{
worker.CurrentBlock = Statics.CurrentBlockHeight;
worker.LastDifficulty = worker.PendingDifficulty;
job["blob"] = Helpers.GenerateUniqueWork(ref seed);
job["job_id"] = Guid.NewGuid().ToString();
ShareJob shareJob = new ShareJob();
shareJob.CurrentDifficulty = worker.LastDifficulty;
shareJob.Seed = seed;
worker.JobSeed.Add(new KeyValuePair <string, ShareJob>((string)job["job_id"], shareJob));
if (worker.JobSeed.Count > int.Parse(Statics.Config.IniReadValue("max-concurrent-works")))
{
worker.JobSeed.RemoveAt(0);
}
job["target"] =
BitConverter.ToString(
BitConverter.GetBytes(Helpers.GetTargetFromDifficulty((uint)shareJob.CurrentDifficulty)))
.Replace("-", "");
}
else
{
job["blob"] = "";
job["job_id"] = "";
job["target"] = "";
}
response["result"] = job;
MinerWorker minerWorker = Statics.RedisDb.MinerWorkers.First(x => x.Identifier == guid);
minerWorker.NewJobRequest();
Statics.RedisDb.SaveChanges(minerWorker);
Statics.ConnectedClients[guid] = worker;
Logger.Log(Logger.LogLevel.Verbose, "Finsihed getjob response");
}
public void IncreaseShareCount(string guid, uint difficulty)
{
ConnectedWorker worker = Statics.ConnectedClients[guid];
double shareValue = (double)difficulty /
int.Parse(Statics.Config.IniReadValue("base-difficulty"));
Block block;
if (Statics.RedisDb.Blocks.Any(x => x.BlockHeight == Statics.CurrentBlockHeight))
{
block = Statics.RedisDb.Blocks.First(x => x.BlockHeight == Statics.CurrentBlockHeight);
}
else
{
block = new Block(Statics.CurrentBlockHeight);
}
Miner miner;
if (Statics.RedisDb.Miners.Any(x => x.Address == worker.Address))
{
miner = Statics.RedisDb.Miners.First(x => x.Address == worker.Address);
}
else
{
miner = new Miner(worker.Address, 0);
}
foreach (var fBlockReward in Statics.RedisDb.BlockRewards)
{
if (fBlockReward.Block == block.Identifier && fBlockReward.Miner == miner.Identifier)
{
Share fShare = new Share(fBlockReward.Identifier, shareValue);
fBlockReward.Shares.Add(fShare.Identifier);
Statics.RedisDb.SaveChanges(fBlockReward);
Statics.RedisDb.SaveChanges(fShare);
Statics.RedisDb.SaveChanges(miner);
Statics.RedisDb.SaveChanges(block);
return;
}
}
BlockReward blockReward = new BlockReward(miner.Identifier, block.Identifier);
Share share = new Share(blockReward.Identifier, shareValue);
blockReward.Shares.Add(share.Identifier);
miner.BlockReward.Add(blockReward.Identifier);
block.BlockRewards.Add(blockReward.Identifier);
Statics.RedisDb.SaveChanges(blockReward);
Statics.RedisDb.SaveChanges(share);
Statics.RedisDb.SaveChanges(miner);
Statics.RedisDb.SaveChanges(block);
}
public static double GetWorkerHashRate(ConnectedWorker worker)
{
ulong time =
(ulong)
(worker.ShareDifficulty.Skip(worker.ShareDifficulty.Count - 4).First().Key -
worker.ShareDifficulty.Last().Key).Seconds;
return(GetHashRate(
worker.ShareDifficulty.Skip(worker.ShareDifficulty.Count - 4)
.ToDictionary(x => x.Key, x => (uint)x.Value)
.Values.ToList(), time));
}
public void GenerateLoginResponse(ref JObject response, string guid, string address)
{
JObject result = new JObject();
JObject job = new JObject();
if (!Helpers.IsValidAddress(address, uint.Parse(Statics.Config.IniReadValue("base58-prefix"))))
{
result["error"] = "Invalid Address";
return;
}
ConnectedWorker worker = new ConnectedWorker();
worker.Address = address;
worker.LastSeen = DateTime.Now;
worker.LastDifficulty = uint.Parse(Statics.Config.IniReadValue("base-difficulty"));
worker.CurrentBlock = Statics.CurrentBlockHeight;
Logger.Log(Logger.LogLevel.General, "Adding {0} to connected clients", guid);
result["id"] = guid;
int seed = 0;
job["blob"] = Helpers.GenerateUniqueWork(ref seed);
job["job_id"] = Guid.NewGuid().ToString();
ShareJob shareJob = new ShareJob();
shareJob.CurrentDifficulty = worker.LastDifficulty;
shareJob.Seed = seed;
worker.JobSeed.Add(new KeyValuePair <string, ShareJob>((string)job["job_id"], shareJob));
job["target"] =
BitConverter.ToString(
BitConverter.GetBytes(Helpers.GetTargetFromDifficulty((uint)shareJob.CurrentDifficulty)))
.Replace("-", "");
Logger.Log(Logger.LogLevel.General, "Sending new work with target {0}", (string)job["target"]);
result["job"] = job;
result["status"] = "OK";
response["result"] = result;
worker.NewJobRequest();
Statics.ConnectedClients.Add(guid, worker);
//Initialize new client in DB
if (Statics.RedisDb.Miners.Any(x => x.Address == worker.Address))
{
Miner miner = Statics.RedisDb.Miners.First(x => x.Address == worker.Address);
MinerWorker minerWorker = new MinerWorker(guid, miner.Identifier, 0);
minerWorker.NewJobRequest();
miner.MinersWorker.Add(guid);
Statics.RedisDb.SaveChanges(miner);
Statics.RedisDb.SaveChanges(minerWorker);
}
else
{
Miner miner = new Miner(worker.Address, 0);
MinerWorker minerWorker = new MinerWorker(guid, miner.Identifier, 0);
minerWorker.NewJobRequest();
miner.MinersWorker.Add(guid);
Statics.RedisDb.SaveChanges(miner);
Statics.RedisDb.SaveChanges(minerWorker);
}
Logger.Log(Logger.LogLevel.Verbose, "Finished login response");
}
public bool GenerateSubmitResponse(ref JObject response, string jobId, string guid, byte[] nonce,
string resultHash, string ipAddress)
{
ConnectedWorker worker = Statics.ConnectedClients[guid];
Statics.TotalShares++;
JObject result = new JObject();
if (nonce == null || nonce.Length == 0)
{
response["error"] = "Invalid arguments!";
return(false);
}
try
{
ShareJob shareJob = worker.JobSeed.First(x => x.Key == jobId).Value;
if (!shareJob.SubmittedShares.Contains(BitConverter.ToInt32(nonce, 0)))
{
shareJob.SubmittedShares.Add(BitConverter.ToInt32(nonce, 0));
}
else
{
response["error"] = "Duplicate share";
return(false);
}
int jobSeed = shareJob.Seed;
worker.ShareRequest(shareJob.CurrentDifficulty);
Statics.RedisDb.MinerWorkers.First(x => x.Identifier == guid).ShareRequest(shareJob.CurrentDifficulty);
byte[] prevJobBlock = Helpers.GenerateShareWork(jobSeed, true);
Array.Copy(nonce, 0, prevJobBlock, 39, nonce.Length);
byte[] blockHash = Hash.CryptoNight(prevJobBlock);
Statics.ConnectedClients[guid].LastSeen = DateTime.Now;
if (resultHash.ToUpper() != BitConverter.ToString(blockHash).Replace("-", ""))
{
Logger.Log(Logger.LogLevel.General, "Hash mismatch from {0}", guid);
result["status"] = "Hash mismatch ";
// throw new Exception();
}
else
{
ShareProcess shareProcess =
Helpers.ProcessShare(blockHash, (int)Statics.CurrentBlockTemplate["difficulty"],
(uint)shareJob.CurrentDifficulty);
string address = Statics.ConnectedClients[guid].Address;
worker.TotalShares++;
if (shareProcess == ShareProcess.ValidShare || shareProcess == ShareProcess.ValidBlock)
{
Statics.HashRate.Difficulty += (uint)shareJob.CurrentDifficulty;
Statics.HashRate.Time = (ulong)((DateTime.Now - Statics.HashRate.Begin).TotalSeconds);
try
{
IncreaseShareCount(guid, (uint)shareJob.CurrentDifficulty);
}
catch (Exception e)
{
Logger.Log(Logger.LogLevel.Error, e.ToString());
throw;
}
if (shareProcess == ShareProcess.ValidBlock &&
!Statics.BlocksPendingSubmition.Any(x => x.BlockHeight == worker.CurrentBlock))
{
Logger.Log(Logger.LogLevel.Special, "Block found by {0}", guid);
byte[] shareWork = Helpers.GenerateShareWork(jobSeed, false);
Array.Copy(nonce, 0, shareWork, 39, nonce.Length);
Statics.BlocksPendingSubmition.Add(new PoolBlock(shareWork, worker.CurrentBlock, "",
Statics.ConnectedClients[guid].Address));
}
result["status"] = "OK";
}
else
{
result["status"] = "Share failed valdiation!";
worker.RejectedShares++;
if ((double)worker.RejectedShares / worker.TotalShares >
int.Parse(Statics.Config.IniReadValue("ban-reject-percentage")) &&
worker.TotalShares > int.Parse(Statics.Config.IniReadValue("ban-after-shares")))
{
result["status"] = "You're banished!";
int minutes = int.Parse(Statics.Config.IniReadValue("ban-time-minutes"));
Logger.Log(Logger.LogLevel.General,
"Client with address {0} ip {1} banned for {2} minutes for having a reject rate of {3}",
worker.Address, ipAddress, minutes,
(double)worker.RejectedShares / worker.TotalShares);
Ban ban = new Ban();
ban.AddressBan = worker.Address;
ban.IpBan = ipAddress;
ban.Begin = DateTime.Now;
ban.Minutes = minutes;
Statics.RedisDb.SaveChanges(ban);
response["result"] = result;
return(true);
}
}
}
}
catch
{
result["error"] = "Invalid job id";
}
response["result"] = result;
return(false);
}