private static bool VASPIsRegistered(
VASPCredentialsRefAndHash vaspCredentialsRefAndHash)
{
var(@ref, hash) = vaspCredentialsRefAndHash;
return(!(VASPCredentialsRef.IsEmpty(@ref) && VASPCredentialsHash.IsEmpty(hash)));
}
public override async Task <string> GetCredentialsAsync(
VASPId vaspId,
VASPCredentialsRef vaspCredentialsRef,
ConfirmationLevel minimalConfirmationLevel = default)
{
var vaspCredentialsRefString = vaspCredentialsRef.ToString();
if (!_vaspCredentialsRefRegex.IsMatch(vaspCredentialsRefString))
{
throw new FormatException("Specified VASP credentials ref is not properly formatted to be used with a VASP directory.");
}
var credentialsInsertedEventHandler = Web3.Eth.GetEvent <CredentialsInsertedEvent>(ContractAddress);
var credentialsInsertedEventFilter = credentialsInsertedEventHandler.CreateFilterInput
(
firstIndexedParameterValue: (byte[])vaspId,
secondIndexedParameterValue: vaspCredentialsRefString.HexToByteArray(),
fromBlock: BlockParameter.CreateEarliest(),
toBlock: await Web3.GetBestTrustedBlockAsync(minimalConfirmationLevel)
);
var latestCredentials = (await credentialsInsertedEventHandler.GetAllChanges(credentialsInsertedEventFilter))
.OrderBy(x => x.Log.BlockNumber)
.Select(x => x.Event.Credentials)
.LastOrDefault() ?? string.Empty;
return(latestCredentials);
}
public VASPCredentialsRefAndHash(
VASPCredentialsHash hash,
VASPCredentialsRef @ref)
{
Hash = hash;
Ref = @ref;
}
public void Deconstruct(
out VASPCredentialsRef @ref,
out VASPCredentialsHash hash)
{
hash = Hash;
@ref = Ref;
}
public override async Task <VASPCredentialsRefAndHash> GetCredentialsRefAndHashAsync(
VASPId vaspId,
ConfirmationLevel minimalConfirmationLevel = default)
{
var vaspCredentialsRefAndHash = await base.GetCredentialsRefAndHashAsync(vaspId, minimalConfirmationLevel);
var(@ref, hash) = vaspCredentialsRefAndHash;
if (VASPCredentialsRef.IsEmpty(@ref) != VASPCredentialsHash.IsEmpty(hash))
{
throw new Exception("Smart contract returned an unexpected combination of VASP credentials reference and hash.");
}
return(vaspCredentialsRefAndHash);
}
public abstract Task <string> GetCredentialsAsync(
VASPId vaspId,
VASPCredentialsRef vaspCredentialsRef,
ConfirmationLevel minimalConfirmationLevel = default);