public async Task <bool> IsVerifiedAsync(Keccak dataAssetId, Address address)
{
var id = Keccak.Compute(Rlp.Encode(Rlp.Encode(dataAssetId), Rlp.Encode(address)).Bytes);
var depositApproval = await _depositApprovalRepository.GetAsync(id);
if (depositApproval is null)
{
if (_logger.IsError)
{
_logger.Error($"Deposit approval for data asset: '{dataAssetId}' was not found.");
}
return(false);
}
if (depositApproval.State != DepositApprovalState.Confirmed)
{
if (_logger.IsInfo)
{
_logger.Info($"Deposit approval for data asset: '{dataAssetId}' has state: '{depositApproval.State}'.");
}
return(false);
}
if (_logger.IsInfo)
{
_logger.Info($"Deposit approval for data asset: '{dataAssetId}' was confirmed, required KYC is valid.");
}
return(true);
}
public async Task <Keccak?> RequestAsync(Keccak assetId, Address consumer, string kyc)
{
if (_logger.IsInfo)
{
_logger.Info($"Requesting a deposit approval for data asset: '{assetId}', consumer: '{consumer}'...");
}
var dataAsset = _dataAssetService.GetDiscovered(assetId);
if (dataAsset is null)
{
if (_logger.IsError)
{
_logger.Error($"Data asset: '{assetId}' was not found.");
}
return(null);
}
if (string.IsNullOrWhiteSpace(kyc))
{
if (_logger.IsError)
{
_logger.Error("KYC cannot be empty.");
}
return(null);
}
if (kyc.Length > MaxKycChars)
{
if (_logger.IsError)
{
_logger.Error($"Invalid KYC (over {MaxKycChars} chars).");
}
return(null);
}
var providerPeer = _providerService.GetPeer(dataAsset.Provider.Address);
if (providerPeer is null)
{
if (_logger.IsError)
{
_logger.Error($"Provider for address: '{dataAsset.Provider.Address}' was not found.");
}
return(null);
}
var id = Keccak.Compute(Rlp.Encode(Rlp.Encode(assetId), Rlp.Encode(consumer)).Bytes);
var approval = await _depositApprovalRepository.GetAsync(id);
if (approval is null)
{
approval = new DepositApproval(id, assetId, dataAsset.Name, kyc, consumer,
dataAsset.Provider.Address, _timestamper.EpochSeconds, DepositApprovalState.Pending);
await _depositApprovalRepository.AddAsync(approval);
}
providerPeer.SendRequestDepositApproval(assetId, consumer, kyc);
if (_logger.IsInfo)
{
_logger.Info($"Requested a deposit approval for data asset: '{assetId}', consumer: '{consumer}'.");
}
return(id);
}