public static async Task Run([PerperStreamTrigger] PerperStreamContext context,
[Perper("self")] ValidatorKey self,
[Perper("privateKey")] ECParameters privateKey,
[PerperStream("dataStream")] IAsyncEnumerable <object> dataStream,
[PerperStream("outputStream")] IAsyncCollector <ISigned <object> > outputStream)
{
await dataStream.ForEachAsync(async item =>
{
var bytes = IpfsJsonSettings.ObjectToBytes(item);
var signature = ValidatorKey.GenerateSignature(privateKey, bytes);
await outputStream.AddAsync(Signed.Create(item, self, signature));
}, CancellationToken.None);
}
public static async Task Run([PerperStreamTrigger] PerperStreamContext context,
[PerperStream("stepsStream")] IAsyncEnumerable <IHashed <IAgentStep> > stepsStream,
[PerperStream("stepValidatorSetSplitterStream")] IAsyncEnumerable <IHashed <ValidatorSet> > stepValidatorSetSplitterStream,
[PerperStream("outputStream")] IAsyncCollector <IHashed <IAgentStep> > outputStream,
ILogger logger)
{
await using var stepValidatorSetSplitterEnumerator = stepValidatorSetSplitterStream.GetAsyncEnumerator();
await stepsStream.ForEachAsync(async step =>
{
if (step.Value.Previous == new Hash {
Bytes = new byte[] {}
})
{
return;
}
await stepValidatorSetSplitterEnumerator.MoveNextAsync();
var validatorSet = stepValidatorSetSplitterEnumerator.Current;
try
{
var commitsSignaturesValid = step.Value.PreviousCommits.All(commit =>
{
if (commit.Value.For != step.Value.Previous)
{
return(false);
}
var bytes = IpfsJsonSettings.ObjectToBytes <object>(commit.Value);
return(commit.Signer.ValidateSignature(bytes, commit.Signature));
});
if (commitsSignaturesValid)
{
var signers = step.Value.PreviousCommits.Select(commit => commit.Signer).Distinct();
if (validatorSet.Value.IsMoreThanTwoThirds(signers))
{
await outputStream.AddAsync(step);
}
}
}
catch (Exception e)
{
logger.LogError(e.ToString());
}
}, CancellationToken.None);
}
