public async Task <QueryTransactionStatusResponse> QueryTransaction(string id)
{
var currentMinerId = await minerId.GetCurrentMinerIdAsync();
var(result, allTheSame, exception) = await rpcMultiClient.GetRawTransactionAsync(id);
if (exception != null && result == null) // only report errors none of the nodes return result or if we got RpcExcpetion (such as as transaction not found)
{
return(new QueryTransactionStatusResponse
{
Timestamp = clock.UtcNow(),
Txid = id,
ReturnResult = "failure",
ResultDescription = GetSafeExceptionDescription(exception),
MinerID = currentMinerId,
});
}
// report mixed errors if we got mixed result or if we got some successful results and some RpcException.
// Ordinary exception might indicate connectivity problems, so we skip them
if (!allTheSame || (exception as AggregateException)?.GetBaseException() is RpcException)
{
return(new QueryTransactionStatusResponse
{
Timestamp = clock.UtcNow(),
Txid = id,
ReturnResult = "failure",
ResultDescription = "Mixed results",
MinerID = currentMinerId,
});
}
return(new QueryTransactionStatusResponse
{
Timestamp = clock.UtcNow(),
Txid = id,
ReturnResult = "success",
ResultDescription = null,
BlockHash = result.Blockhash,
BlockHeight = result.Blockheight,
Confirmations = result.Confirmations,
MinerID = currentMinerId
//TxSecondMempoolExpiry
});
}
private async Task <string> SignIfRequiredAsync <T>(T response)
{
string payload = HelperTools.JSONSerialize(response, false);
if (minerId == null)
{
// Do not sign if we do not have miner id
return(payload);
}
lastMinerId ??= await minerId.GetCurrentMinerIdAsync();
async Task <JsonEnvelope> TryToSign()
{
async Task <(string signature, string publicKey)> signWithMinerId(string sigHashHex)
{
var signature = await minerId.SignWithMinerIdAsync(lastMinerId, sigHashHex);
return(signature, lastMinerId);
}
var envelope = await JsonEnvelopeSignature.CreateJSonSignatureAsync(payload, signWithMinerId);
// Verify a signature - some implementation might have incorrect race conditions when rotating the keys
if (!JsonEnvelopeSignature.VerifySignature(envelope))
{
return(null);
}
return(envelope);
}
var jsonEnvelope = await TryToSign();
if (jsonEnvelope == null)
{
throw new Exception("Error while validating signature. Possible reason: incorrect configuration or key rotation");
}
return(HelperTools.JSONSerialize(new SignedPayloadViewModel(jsonEnvelope), true));
}
private async Task <ActionResult> FillFeeQuoteViewModelWithInfo <T>(T feeQuoteViewModelGet) where T : FeeQuoteViewModelGet
{
feeQuoteViewModelGet.ExpiryTime = feeQuoteViewModelGet.Timestamp.Add(TimeSpan.FromMinutes(quoteExpiryMinutes));
var info = await blockChainInfo.GetInfoAsync();
feeQuoteViewModelGet.MinerId = await minerId.GetCurrentMinerIdAsync();
feeQuoteViewModelGet.CurrentHighestBlockHash = info.BestBlockHash;
feeQuoteViewModelGet.CurrentHighestBlockHeight = info.BestBlockHeight;
logger.LogInformation($"Returning {nameof(feeQuoteViewModelGet)} with ExpiryTime: {feeQuoteViewModelGet.ExpiryTime}.");
return(await SignIfRequiredAsync(feeQuoteViewModelGet, feeQuoteViewModelGet.MinerId));
}
private async Task TestMinerId()
{
try
{
logger.LogInformation($"Checking MinerId");
var currentMinerId = await minerId.GetCurrentMinerIdAsync();
await minerId.SignWithMinerIdAsync(currentMinerId, "5bdc7d2ca32915a311f91a6b4b8dcefd746b1a73d355a65cbdee425e4134d682");
logger.LogInformation($"MinerId check completed successfully");
}
catch (Exception e)
{
logger.LogError($"Can not access MinerID. {e.Message}");
throw;
}
}
public async Task <ActionResult <FeeQuoteViewModelGet> > GetFeeQuote()
{
if (!IdentityProviderStore.GetUserAndIssuer(User, Request.Headers, out var identity))
{
return(Unauthorized("Incorrectly formatted token"));
}
logger.LogInformation($"Get FeeQuote for user { ((identity == null) ? "/" : identity.ToString() )} ...");
FeeQuote feeQuote = feeQuoteRepository.GetCurrentFeeQuoteByIdentity(identity);
if (feeQuote == null)
{
logger.LogInformation($"There are no active feeQuotes.");
return(NotFound());
}
var feeQuoteViewModelGet = new FeeQuoteViewModelGet(feeQuote)
{
Timestamp = clock.UtcNow(),
};
feeQuoteViewModelGet.ExpiryTime = feeQuoteViewModelGet.Timestamp.Add(TimeSpan.FromMinutes(quoteExpiryMinutes));
var info = blockChainInfo.GetInfo();
feeQuoteViewModelGet.MinerId = await minerId.GetCurrentMinerIdAsync();
feeQuoteViewModelGet.CurrentHighestBlockHash = info.BestBlockHash;
feeQuoteViewModelGet.CurrentHighestBlockHeight = info.BestBlockHeight;
logger.LogInformation($"Returning feeQuote with ExpiryTime: {feeQuoteViewModelGet.ExpiryTime}.");
return(await SignIfRequiredAsync(feeQuoteViewModelGet, feeQuoteViewModelGet.MinerId));
}
