private async Task OnConfigureMiningAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <BitcoinWorkerContext>();
var requestParams = request.ParamsAs <JToken[]>();
var extensions = requestParams[0].ToObject <string[]>();
var extensionParams = requestParams[1].ToObject <Dictionary <string, JToken> >();
var result = new Dictionary <string, object>();
if (extensions != null)
{
foreach (var extension in extensions)
{
switch (extension)
{
case BitcoinStratumExtensions.VersionRolling:
ConfigureVersionRolling(connection, context, extensionParams, result);
break;
case BitcoinStratumExtensions.MinimumDiff:
ConfigureMinimumDiff(connection, context, extensionParams, result);
break;
}
}
}
await connection.RespondAsync(result, request.Id);
}
protected async Task OnSubscribeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <BitcoinWorkerContext>();
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var requestParams = request.ParamsAs <string[]>();
var data = new object[]
{
connection.ConnectionId,
}
.Concat(manager.GetSubscriberData(connection))
.ToArray();
await connection.RespondAsync(data, request.Id);
// setup worker context
context.IsSubscribed = true;
context.UserAgent = requestParams.FirstOrDefault()?.Trim();
}
private async Task OnSuggestDifficultyAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <BitcoinWorkerContext>();
// acknowledge
await connection.RespondAsync(true, request.Id);
try
{
var requestedDiff = (double)Convert.ChangeType(request.Params, TypeCode.Double) !;
// client may suggest higher-than-base difficulty, but not a lower one
var poolEndpoint = poolConfig.Ports[connection.LocalEndpoint.Port];
if (requestedDiff > poolEndpoint.Difficulty)
{
context.SetDifficulty(requestedDiff);
await connection.NotifyAsync(BitcoinStratumMethods.SetDifficulty, new object[] { context.Difficulty });
logger.Info(() => $"[{connection.ConnectionId}] Difficulty set to {requestedDiff} as requested by miner");
}
}
catch (Exception ex)
{
logger.Error(ex, () => $"Unable to convert suggested difficulty {request.Params}");
}
}
protected virtual async Task OnSubscribeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var context = connection.ContextAs <BitcoinWorkerContext>();
var requestParams = request.ParamsAs <string[]>();
var data = new object[]
{
new object[]
{
new object[] { BitcoinStratumMethods.SetDifficulty, connection.ConnectionId },
new object[] { BitcoinStratumMethods.MiningNotify, connection.ConnectionId }
}
}
.Concat(manager.GetSubscriberData(connection))
.ToArray();
await connection.RespondAsync(data, request.Id);
// setup worker context
context.IsSubscribed = true;
context.UserAgent = requestParams?.Length > 0 ? requestParams[0].Trim() : null;
// send intial update
await connection.NotifyAsync(BitcoinStratumMethods.SetDifficulty, new object[] { context.Difficulty });
await connection.NotifyAsync(BitcoinStratumMethods.MiningNotify, currentJobParams);
}
private async Task SendWork(EthereumWorkerContext context, StratumConnection connection, object requestId)
{
var parameters = manager.GetWorkParamsForStratum(context);
// respond
await connection.RespondAsync(parameters, requestId);
}
private async Task OnSubscribeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <EthereumWorkerContext>();
if (request.Id == null)
{
throw new StratumException(StratumError.Other, "missing request id");
}
var requestParams = request.ParamsAs <string[]>();
if (requestParams == null || requestParams.Length < 2 || requestParams.Any(string.IsNullOrEmpty))
{
throw new StratumException(StratumError.MinusOne, "invalid request");
}
manager.PrepareWorker(connection);
context.UserAgent = requestParams.FirstOrDefault()?.Trim();
var data = new object[]
{
new object[]
{
EthereumStratumMethods.MiningNotify,
connection.ConnectionId,
EthereumConstants.EthereumStratumVersion
},
context.ExtraNonce1
}
.ToArray();
// Nicehash's stupid validator insists on "error" property present
// in successful responses which is a violation of the JSON-RPC spec
var response = new JsonRpcResponse <object[]>(data, request.Id);
if (context.IsNicehash)
{
response.Extra = new Dictionary <string, object>();
response.Extra["error"] = null;
}
await connection.RespondAsync(response);
// setup worker context
context.IsSubscribed = true;
}
private async Task OnAuthorizeAsync(StratumConnection client, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = client.ContextAs <EthereumWorkerContext>();
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var requestParams = request.ParamsAs <string[]>();
var workerValue = requestParams?.Length > 0 ? requestParams[0] : "0";
var password = requestParams?.Length > 1 ? requestParams[1] : null;
var passParts = password?.Split(PasswordControlVarsSeparator);
// extract worker/miner
var workerParts = workerValue?.Split('.');
var minerName = workerParts?.Length > 0 ? workerParts[0].Trim() : null;
var workerName = workerParts?.Length > 1 ? workerParts[1].Trim() : "0";
// assumes that workerName is an address
context.IsAuthorized = !string.IsNullOrEmpty(minerName) && manager.ValidateAddress(minerName);
context.Miner = minerName.ToLower();
context.Worker = workerName;
// respond
await client.RespondAsync(context.IsAuthorized, request.Id);
// extract control vars from password
var staticDiff = GetStaticDiffFromPassparts(passParts);
if (staticDiff.HasValue &&
(context.VarDiff != null && staticDiff.Value >= context.VarDiff.Config.MinDiff ||
context.VarDiff == null && staticDiff.Value > context.Difficulty))
{
context.VarDiff = null; // disable vardiff
context.SetDifficulty(staticDiff.Value);
logger.Info(() => $"[{client.ConnectionId}] Setting static difficulty of {staticDiff.Value}");
}
await EnsureInitialWorkSent(client);
// log association
logger.Info(() => $"[{client.ConnectionId}] Authorized worker {workerValue}");
}
protected virtual async Task OnSubscribeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var context = connection.ContextAs <BitcoinWorkerContext>();
var requestParams = request.ParamsAs <string[]>();
var data = new object[]
{
new object[]
{
new object[] { BitcoinStratumMethods.SetDifficulty, connection.ConnectionId },
new object[] { BitcoinStratumMethods.MiningNotify, connection.ConnectionId }
}
}
.Concat(manager.GetSubscriberData(connection))
.ToArray();
await connection.RespondAsync(data, request.Id);
// setup worker context
context.IsSubscribed = true;
context.UserAgent = requestParams.FirstOrDefault()?.Trim();
// Nicehash support
var nicehashDiff = await GetNicehashStaticMinDiff(context, coin.Name, coin.GetAlgorithmName());
if (nicehashDiff.HasValue)
{
logger.Info(() => $"[{connection.ConnectionId}] Nicehash detected. Using API supplied difficulty of {nicehashDiff.Value}");
context.VarDiff = null; // disable vardiff
context.SetDifficulty(nicehashDiff.Value);
}
// send intial update
await connection.NotifyAsync(BitcoinStratumMethods.SetDifficulty, new object[] { context.Difficulty });
await connection.NotifyAsync(BitcoinStratumMethods.MiningNotify, currentJobParams);
}
protected override async Task OnRequestAsync(StratumConnection client,
Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
try
{
switch (request.Method)
{
case EthereumStratumMethods.Subscribe:
await OnSubscribeAsync(client, tsRequest);
break;
case EthereumStratumMethods.Authorize:
await OnAuthorizeAsync(client, tsRequest);
break;
case EthereumStratumMethods.SubmitShare:
await OnSubmitAsync(client, tsRequest, ct);
break;
case EthereumStratumMethods.ExtraNonceSubscribe:
// Pretend to support it even though we actually do not. Some miners drop the connection upon receiving an error from this
await client.RespondAsync(true, request.Id);
break;
default:
logger.Info(() => $"[{client.ConnectionId}] Unsupported RPC request: {JsonConvert.SerializeObject(request, serializerSettings)}");
await client.RespondErrorAsync(StratumError.Other, $"Unsupported request {request.Method}", request.Id);
break;
}
}
catch (StratumException ex)
{
await client.RespondErrorAsync(ex.Code, ex.Message, request.Id, false);
}
}
private async Task OnSubscribeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <EthereumWorkerContext>();
if (request.Id == null)
{
throw new StratumException(StratumError.Other, "missing request id");
}
var requestParams = request.ParamsAs <string[]>();
if (requestParams == null || requestParams.Length < 2 || requestParams.Any(string.IsNullOrEmpty))
{
throw new StratumException(StratumError.MinusOne, "invalid request");
}
manager.PrepareWorker(connection);
var data = new object[]
{
new object[]
{
EthereumStratumMethods.MiningNotify,
connection.ConnectionId,
EthereumConstants.EthereumStratumVersion
},
context.ExtraNonce1
}
.ToArray();
await connection.RespondAsync(data, request.Id);
// setup worker context
context.IsSubscribed = true;
context.UserAgent = requestParams[0].Trim();
}
protected override async Task OnRequestAsync(StratumConnection connection,
Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
try
{
switch (request.Method)
{
case BitcoinStratumMethods.Subscribe:
await OnSubscribeAsync(connection, tsRequest);
break;
case BitcoinStratumMethods.Authorize:
await OnAuthorizeAsync(connection, tsRequest, ct);
break;
case BitcoinStratumMethods.SubmitShare:
await OnSubmitAsync(connection, tsRequest, ct);
break;
case BitcoinStratumMethods.SuggestDifficulty:
await OnSuggestDifficultyAsync(connection, tsRequest);
break;
case BitcoinStratumMethods.MiningConfigure:
await OnConfigureMiningAsync(connection, tsRequest);
// ignored
break;
case BitcoinStratumMethods.ExtraNonceSubscribe:
await connection.RespondAsync(true, request.Id);
break;
case BitcoinStratumMethods.GetTransactions:
// ignored
break;
case BitcoinStratumMethods.MiningMultiVersion:
// ignored
break;
default:
logger.Debug(() => $"[{connection.ConnectionId}] Unsupported RPC request: {JsonConvert.SerializeObject(request, serializerSettings)}");
await connection.RespondErrorAsync(StratumError.Other, $"Unsupported request {request.Method}", request.Id);
break;
}
}
catch (StratumException ex)
{
await connection.RespondErrorAsync(ex.Code, ex.Message, request.Id, false);
}
}
protected virtual async Task OnSubmitAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
var context = connection.ContextAs <BitcoinWorkerContext>();
try
{
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
// check age of submission (aged submissions are usually caused by high server load)
var requestAge = clock.Now - tsRequest.Timestamp.UtcDateTime;
if (requestAge > maxShareAge)
{
logger.Warn(() => $"[{connection.ConnectionId}] Dropping stale share submission request (server overloaded?)");
return;
}
// check worker state
context.LastActivity = clock.Now;
// validate worker
if (!context.IsAuthorized)
{
throw new StratumException(StratumError.UnauthorizedWorker, "unauthorized worker");
}
else if (!context.IsSubscribed)
{
throw new StratumException(StratumError.NotSubscribed, "not subscribed");
}
// submit
var requestParams = request.ParamsAs <string[]>();
var poolEndpoint = poolConfig.Ports[connection.LocalEndpoint.Port];
var share = await manager.SubmitShareAsync(connection, requestParams, ct);
await connection.RespondAsync(true, request.Id);
// publish
messageBus.SendMessage(new StratumShare(connection, share));
// telemetry
PublishTelemetry(TelemetryCategory.Share, clock.Now - tsRequest.Timestamp.UtcDateTime, true);
logger.Info(() => $"[{connection.ConnectionId}] Share accepted: D={Math.Round(share.Difficulty * coin.ShareMultiplier, 3)}");
// update pool stats
if (share.IsBlockCandidate)
{
poolStats.LastPoolBlockTime = clock.Now;
}
// update client stats
context.Stats.ValidShares++;
await UpdateVarDiffAsync(connection);
}
catch (StratumException ex)
{
// telemetry
PublishTelemetry(TelemetryCategory.Share, clock.Now - tsRequest.Timestamp.UtcDateTime, false);
// update client stats
context.Stats.InvalidShares++;
logger.Info(() => $"[{connection.ConnectionId}] Share rejected: {ex.Message} [{context.UserAgent}]");
// banning
ConsiderBan(connection, context, poolConfig.Banning);
throw;
}
}
private async Task OnAuthorizeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest)
{
var request = tsRequest.Value;
var context = connection.ContextAs <EthereumWorkerContext>();
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var requestParams = request.ParamsAs <string[]>();
var workerValue = requestParams?.Length > 0 ? requestParams[0] : "0";
var password = requestParams?.Length > 1 ? requestParams[1] : null;
var passParts = password?.Split(PasswordControlVarsSeparator);
// extract worker/miner
var workerParts = workerValue?.Split('.');
var minerName = workerParts?.Length > 0 ? workerParts[0].Trim() : null;
var workerName = workerParts?.Length > 1 ? workerParts[1].Trim() : "0";
context.IsAuthorized = manager.ValidateAddress(minerName);
// respond
await connection.RespondAsync(context.IsAuthorized, request.Id);
if (context.IsAuthorized)
{
context.Miner = minerName?.ToLower();
context.Worker = workerName;
// extract control vars from password
var staticDiff = GetStaticDiffFromPassparts(passParts);
// Nicehash support
var nicehashDiff = await GetNicehashStaticMinDiff(context, coin.Name, coin.GetAlgorithmName());
if (nicehashDiff.HasValue)
{
if (!staticDiff.HasValue || nicehashDiff > staticDiff)
{
logger.Info(() => $"[{connection.ConnectionId}] Nicehash detected. Using API supplied difficulty of {nicehashDiff.Value}");
staticDiff = nicehashDiff;
}
else
{
logger.Info(() => $"[{connection.ConnectionId}] Nicehash detected. Using miner supplied difficulty of {staticDiff.Value}");
}
}
// Static diff
if (staticDiff.HasValue &&
(context.VarDiff != null && staticDiff.Value >= context.VarDiff.Config.MinDiff ||
context.VarDiff == null && staticDiff.Value > context.Difficulty))
{
context.VarDiff = null; // disable vardiff
context.SetDifficulty(staticDiff.Value);
logger.Info(() => $"[{connection.ConnectionId}] Setting static difficulty of {staticDiff.Value}");
}
await connection.NotifyAsync(EthereumStratumMethods.SetDifficulty, new object[] { context.Difficulty });
await connection.NotifyAsync(EthereumStratumMethods.MiningNotify, manager.GetJobParamsForStratum());
logger.Info(() => $"[{connection.ConnectionId}] Authorized worker {workerValue}");
}
else
{
logger.Info(() => $"[{connection.ConnectionId}] Banning unauthorized worker {minerName} for {loginFailureBanTimeout.TotalSeconds} sec");
banManager.Ban(connection.RemoteEndpoint.Address, loginFailureBanTimeout);
CloseConnection(connection);
}
}
private async Task OnSubmitAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct, bool v1 = false)
{
var request = tsRequest.Value;
var context = connection.ContextAs <EthereumWorkerContext>();
try
{
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
// check age of submission (aged submissions are usually caused by high server load)
var requestAge = clock.Now - tsRequest.Timestamp.UtcDateTime;
if (requestAge > maxShareAge)
{
logger.Warn(() => $"[{connection.ConnectionId}] Dropping stale share submission request (server overloaded?)");
return;
}
// validate worker
if (!context.IsAuthorized)
{
throw new StratumException(StratumError.UnauthorizedWorker, "unauthorized worker");
}
if (!context.IsSubscribed)
{
throw new StratumException(StratumError.NotSubscribed, "not subscribed");
}
// check request
var submitRequest = request.ParamsAs <string[]>();
if (submitRequest.Length != 3 ||
submitRequest.Any(string.IsNullOrEmpty))
{
throw new StratumException(StratumError.MinusOne, "malformed PoW result");
}
// recognize activity
context.LastActivity = clock.Now;
// submit
Share share;
if (!v1)
{
share = await manager.SubmitShareV2Async(connection, submitRequest, ct);
}
else
{
share = await manager.SubmitShareV1Async(connection, submitRequest, GetWorkerNameFromV1Request(request, context), ct);
}
await connection.RespondAsync(true, request.Id);
// publish
messageBus.SendMessage(new StratumShare(connection, share));
// telemetry
PublishTelemetry(TelemetryCategory.Share, clock.Now - tsRequest.Timestamp.UtcDateTime, true);
logger.Info(() => $"[{connection.ConnectionId}] Share accepted: D={Math.Round(share.Difficulty / EthereumConstants.Pow2x32, 3)}");
// update pool stats
if (share.IsBlockCandidate)
{
poolStats.LastPoolBlockTime = clock.Now;
}
// update client stats
context.Stats.ValidShares++;
await UpdateVarDiffAsync(connection);
}
catch (StratumException ex)
{
// telemetry
PublishTelemetry(TelemetryCategory.Share, clock.Now - tsRequest.Timestamp.UtcDateTime, false);
// update client stats
context.Stats.InvalidShares++;
logger.Info(() => $"[{connection.ConnectionId}] Share rejected: {ex.Message} [{context.UserAgent}]");
// banning
ConsiderBan(connection, context, poolConfig.Banning);
throw;
}
}
protected virtual async Task OnAuthorizeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var context = connection.ContextAs <BitcoinWorkerContext>();
var requestParams = request.ParamsAs <string[]>();
var workerValue = requestParams?.Length > 0 ? requestParams[0] : null;
var password = requestParams?.Length > 1 ? requestParams[1] : null;
var passParts = password?.Split(PasswordControlVarsSeparator);
// extract worker/miner
var split = workerValue?.Split('.');
var minerName = split?.FirstOrDefault()?.Trim();
var workerName = split?.Skip(1).FirstOrDefault()?.Trim() ?? string.Empty;
// assumes that minerName is an address
context.IsAuthorized = !string.IsNullOrEmpty(minerName) && await manager.ValidateAddressAsync(minerName, ct);
context.Miner = minerName;
context.Worker = workerName;
if (context.IsAuthorized)
{
// respond
await connection.RespondAsync(context.IsAuthorized, request.Id);
// log association
logger.Info(() => $"[{connection.ConnectionId}] Authorized worker {workerValue}");
// extract control vars from password
var staticDiff = GetStaticDiffFromPassparts(passParts);
// Nicehash support
if (clusterConfig.Nicehash?.EnableAutoDiff == true &&
context.UserAgent.Contains(NicehashConstants.NicehashUA, StringComparison.OrdinalIgnoreCase))
{
// query current diff
var nicehashDiff = await nicehashService.GetStaticDiff(coin.Name, coin.GetAlgorithmName(), CancellationToken.None);
if (nicehashDiff.HasValue)
{
if (!staticDiff.HasValue || nicehashDiff > staticDiff)
{
logger.Info(() => $"[{connection.ConnectionId}] Nicehash detected. Using API supplied difficulty of {nicehashDiff.Value}");
staticDiff = nicehashDiff;
}
else
{
logger.Info(() => $"[{connection.ConnectionId}] Nicehash detected. Using custom difficulty of {staticDiff.Value}");
}
}
}
// Static diff
if (staticDiff.HasValue &&
(context.VarDiff != null && staticDiff.Value >= context.VarDiff.Config.MinDiff ||
context.VarDiff == null && staticDiff.Value > context.Difficulty))
{
context.VarDiff = null; // disable vardiff
context.SetDifficulty(staticDiff.Value);
logger.Info(() => $"[{connection.ConnectionId}] Setting static difficulty of {staticDiff.Value}");
await connection.NotifyAsync(BitcoinStratumMethods.SetDifficulty, new object[] { context.Difficulty });
}
}
else
{
// respond
await connection.RespondErrorAsync(StratumError.UnauthorizedWorker, "Authorization failed", request.Id, context.IsAuthorized);
// issue short-time ban if unauthorized to prevent DDos on daemon (validateaddress RPC)
logger.Info(() => $"[{connection.ConnectionId}] Banning unauthorized worker for 60 sec");
banManager.Ban(connection.RemoteEndpoint.Address, TimeSpan.FromSeconds(60));
CloseConnection(connection);
}
}
protected virtual async Task OnAuthorizeAsync(StratumConnection connection, Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
if (request.Id == null)
{
throw new StratumException(StratumError.MinusOne, "missing request id");
}
var context = connection.ContextAs <BitcoinWorkerContext>();
var requestParams = request.ParamsAs <string[]>();
var workerValue = requestParams?.Length > 0 ? requestParams[0] : null;
var password = requestParams?.Length > 1 ? requestParams[1] : null;
var passParts = password?.Split(PasswordControlVarsSeparator);
// extract worker/miner
var split = workerValue?.Split('.');
var minerName = split?.FirstOrDefault()?.Trim();
var workerName = split?.Skip(1).FirstOrDefault()?.Trim() ?? string.Empty;
// assumes that minerName is an address
context.IsAuthorized = await manager.ValidateAddressAsync(minerName, ct);
context.Miner = minerName;
context.Worker = workerName;
if (context.IsAuthorized)
{
// respond
await connection.RespondAsync(context.IsAuthorized, request.Id);
// log association
logger.Info(() => $"[{connection.ConnectionId}] Authorized worker {workerValue}");
// extract control vars from password
var staticDiff = GetStaticDiffFromPassparts(passParts);
// Static diff
if (staticDiff.HasValue &&
(context.VarDiff != null && staticDiff.Value >= context.VarDiff.Config.MinDiff ||
context.VarDiff == null && staticDiff.Value > context.Difficulty))
{
context.VarDiff = null; // disable vardiff
context.SetDifficulty(staticDiff.Value);
logger.Info(() => $"[{connection.ConnectionId}] Setting static difficulty of {staticDiff.Value}");
await connection.NotifyAsync(BitcoinStratumMethods.SetDifficulty, new object[] { context.Difficulty });
}
}
else
{
await connection.RespondErrorAsync(StratumError.UnauthorizedWorker, "Authorization failed", request.Id, context.IsAuthorized);
// issue short-time ban if unauthorized to prevent DDos on daemon (validateaddress RPC)
logger.Info(() => $"[{connection.ConnectionId}] Banning unauthorized worker {minerName} for {loginFailureBanTimeout.TotalSeconds} sec");
banManager.Ban(connection.RemoteEndpoint.Address, loginFailureBanTimeout);
CloseConnection(connection);
}
}
protected override async Task OnRequestAsync(StratumConnection connection,
Timestamped <JsonRpcRequest> tsRequest, CancellationToken ct)
{
var request = tsRequest.Value;
var context = connection.ContextAs <EthereumWorkerContext>();
try
{
switch (request.Method)
{
// V2/Nicehash Stratum Methods
case EthereumStratumMethods.Subscribe:
context.ProtocolVersion = 2; // lock in protocol version
await OnSubscribeAsync(connection, tsRequest);
break;
case EthereumStratumMethods.Authorize:
EnsureProtocolVersion(context, 2);
await OnAuthorizeAsync(connection, tsRequest);
break;
case EthereumStratumMethods.SubmitShare:
EnsureProtocolVersion(context, 2);
await OnSubmitAsync(connection, tsRequest, ct);
break;
case EthereumStratumMethods.ExtraNonceSubscribe:
EnsureProtocolVersion(context, 2);
// Pretend to support it even though we actually do not. Some miners drop the connection upon receiving an error from this
await connection.RespondAsync(true, request.Id);
break;
// V1 Stratum methods
case EthereumStratumMethods.SubmitLogin:
context.ProtocolVersion = 1; // lock in protocol version
await OnSubmitLoginAsync(connection, tsRequest);
break;
case EthereumStratumMethods.GetWork:
EnsureProtocolVersion(context, 1);
await OnGetWorkAsync(connection, tsRequest);
break;
case EthereumStratumMethods.SubmitWork:
EnsureProtocolVersion(context, 1);
await OnSubmitAsync(connection, tsRequest, ct, true);
break;
case EthereumStratumMethods.SubmitHashrate:
await connection.RespondAsync(true, request.Id);
break;
default:
logger.Info(() => $"[{connection.ConnectionId}] Unsupported RPC request: {JsonConvert.SerializeObject(request, serializerSettings)}");
await connection.RespondErrorAsync(StratumError.Other, $"Unsupported request {request.Method}", request.Id);
break;
}
}
catch (StratumException ex)
{
await connection.RespondErrorAsync(ex.Code, ex.Message, request.Id, false);
}
}
