private async Task <List <AvailableTokenInfoInCache> > GetExtraAcceptedTokensInfoFromCacheAsync()
{
var normalCache = _cacheProvider.GetExtraAcceptedTokensInfoFromNormalCache();
if (normalCache != null)
{
return(normalCache);
}
var chain = await _blockchainService.GetChainAsync();
var tokenStub = _tokenStTokenContractReaderFactory.Create(new ChainContext
{
BlockHash = chain.LastIrreversibleBlockHash,
BlockHeight = chain.LastIrreversibleBlockHeight
});
var tokenInfos = await tokenStub.GetSymbolsToPayTXSizeFee.CallAsync(new Empty());
var tokenInfoList = new List <AvailableTokenInfoInCache>();
if (tokenInfos != null)
{
foreach (var tokenInfo in tokenInfos.SymbolsToPayTxSizeFee)
{
tokenInfoList.Add(new AvailableTokenInfoInCache
{
TokenSymbol = tokenInfo.TokenSymbol,
AddedTokenWeight = tokenInfo.AddedTokenWeight,
BaseTokenWeight = tokenInfo.BaseTokenWeight
});
}
}
_cacheProvider.SetExtraAcceptedTokenInfoToCache(tokenInfoList);
return(tokenInfoList);
}
private async Task <Dictionary <int, ICalculateWay> > GetDefaultPieceWiseFunctionAsync()
{
var tempCache = _cacheCacheProvider.GetPieceWiseFunctionFromNormalCache();
if (tempCache != null)
{
return(tempCache);
}
var chain = await _blockchainService.GetChainAsync();
var tokenStub = _tokenStTokenContractReaderFactory.Create(new ChainContext
{
BlockHash = chain.LastIrreversibleBlockHash,
BlockHeight = chain.LastIrreversibleBlockHeight
});
CalculateFeeCoefficientsOfType parameters;
if (CalculateAlgorithmContext.CalculateFeeTypeEnum == (int)FeeTypeEnum.Tx)
{
parameters = await tokenStub.GetCalculateFeeCoefficientOfSender.CallAsync(new Empty());
}
else
{
parameters = await tokenStub.GetCalculateFeeCoefficientOfContract.CallAsync(new SInt32Value
{ Value = CalculateAlgorithmContext.CalculateFeeTypeEnum });
}
var calWayDic = new Dictionary <int, ICalculateWay>();
foreach (var func in parameters.Coefficients)
{
ICalculateWay newCalculateWay = null;
switch (func.FunctionType)
{
case CalculateFunctionTypeEnum.Liner:
newCalculateWay = new LinerCalculateWay();
break;
case CalculateFunctionTypeEnum.Power:
newCalculateWay = new PowerCalculateWay();
break;
}
if (newCalculateWay == null)
{
Logger.LogWarning($"could not find mapped function type {func.FunctionType}");
continue;
}
var funDicToLowerKey = func.CoefficientDic.ToDictionary(x => x.Key.ToLower(), x => x.Value);
calWayDic[func.PieceKey] = newCalculateWay;
calWayDic[func.PieceKey].InitParameter(funDicToLowerKey);
}
_cacheCacheProvider.SetPieceWiseFunctionToNormalCache(calWayDic);
return(calWayDic);
}
public async Task <string> GetPrimaryTokenSymbol()
{
if (_primaryTokenSymbol != null)
{
return(_primaryTokenSymbol);
}
var chain = await _blockchainService.GetChainAsync();
_primaryTokenSymbol = (await _tokenContractReaderFactory.Create(new ChainContext
{
BlockHash = chain.BestChainHash,
BlockHeight = chain.BestChainHeight
}).GetPrimaryTokenSymbol.CallAsync(new Empty())).Value;
return(_primaryTokenSymbol);
}
public async Task <bool> ValidateTransactionAsync(Transaction transaction)
{
// Skip if the sender is a contract.
var deployedContractAddressList =
await _deployedContractAddressProvider.GetDeployedContractAddressListAsync();
if (deployedContractAddressList.Value.Contains(transaction.From))
{
return(true);
}
// Skip if this is a system transaction.
if (IsSystemTransaction(transaction))
{
return(true);
}
var chain = await _blockchainService.GetChainAsync();
// Skip this validation at the very beginning of current chain.
if (chain.LastIrreversibleBlockHeight == Constants.GenesisBlockHeight)
{
return(true);
}
var tokenStub = _tokenContractReaderFactory.Create(new ChainContext
{
BlockHash = chain.BestChainHash,
BlockHeight = chain.BestChainHeight
});
var balance = (await tokenStub.GetBalance.CallAsync(new GetBalanceInput
{
Owner = transaction.From,
Symbol = await _primaryTokenSymbolProvider.GetPrimaryTokenSymbol()
}))?.Balance;
// balance == null means token contract hasn't deployed.
if (balance == null || balance > 0)
{
return(true);
}
Logger.LogError($"Empty balance of tx from address: {transaction}");
return(false);
}
private async Task <long> GetUnitPriceAsync()
{
if (_unitPrice != null)
{
// Logger.LogTrace($"Get tx size fee unit price: {_unitPrice.Value}");
return(_unitPrice.Value);
}
var chain = await _blockchainService.GetChainAsync();
var tokenStub = _tokenStTokenContractReaderFactory.Create(new ChainContext
{
BlockHash = chain.LastIrreversibleBlockHash,
BlockHeight = chain.LastIrreversibleBlockHeight
});
_unitPrice = (await tokenStub.GetTransactionSizeFeeUnitPrice.CallAsync(new Empty()))?.Value ?? 0;
return(_unitPrice.Value);
}
public async Task <bool> ValidateTransactionAsync(Transaction transaction)
{
// Skip if this is a system transaction.
if (_feeExemptionService.IsFree(transaction))
{
return(true);
}
var chain = await _blockchainService.GetChainAsync();
var chainContext = new ChainContext
{
BlockHash = chain.BestChainHash,
BlockHeight = chain.BestChainHeight
};
// Skip this validation at the very beginning of current chain.
if (chain.LastIrreversibleBlockHeight == AElfConstants.GenesisBlockHeight)
{
return(true);
}
var tokenStub = _tokenContractReaderFactory.Create(chainContext);
var balance = (await tokenStub.GetBalance.CallAsync(new GetBalanceInput
{
Owner = transaction.From,
Symbol = await _primaryTokenSymbolProvider.GetPrimaryTokenSymbol()
}))?.Balance;
// balance == null means token contract hasn't deployed.
if (balance == null || balance > 0)
{
return(true);
}
Logger.LogWarning($"Empty balance of tx from address: {transaction}");
return(false);
}