private Coalite GenerateCoalite(int fullSecondStamp)
{
var coalid = Guid.NewGuid().ToString();
var payload = new CoalitePayload(new List <CoaliteSignature>());
var serializedPayload = JObject.FromObject(payload).ToString(Newtonsoft.Json.Formatting.None);
var coalite = new Coalite(coalid, serializedPayload, fullSecondStamp);
coalite.SignCoalite(_rsa, CoaliteAction.EMIT, "", _serverPublicKey, "System");
return(coalite);
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
do
{
if (stoppingToken.IsCancellationRequested)
{
break;
}
var now = DateTime.UtcNow;
var diffSeconds = (now - _baseDate).TotalSeconds;
int fullSecondStamp = (int)Math.Floor(diffSeconds);
lock (_dblock)
{
var dbcontext = GetDBConnection();
var coalite = dbcontext.Coalites
.Where(c => c.FullSecondStamp == fullSecondStamp)
.FirstOrDefault();
if (coalite == null)
{
_lastCoalite = GenerateCoalite(fullSecondStamp);
//previous version which saves all coalites
//dbcontext.Add(newCoalite);
//dbcontext.SaveChanges();
}
}
var nextNow = DateTime.UtcNow;
var nextDiffSeconds = (nextNow - _baseDate).TotalSeconds;
int nextFullSecondStamp = (int)Math.Floor(nextDiffSeconds);
double awaitSeconds = 0.0;
int fdiff = nextFullSecondStamp - fullSecondStamp;
if (fdiff - 1 > 0)
{
var coalitesLate = fdiff - 1;
_logger.LogWarning($"{coalitesLate} Coalites Lost ! Hurrying up...");
continue;
}
else if (fdiff == 1)
{
// Already in next second, but don't worry, there's still time.
continue;
}
// still in same second
awaitSeconds = 1.0 - (nextDiffSeconds - nextFullSecondStamp);
_logger.LogInformation($"Waiting {awaitSeconds}s");
await Task.Delay(TimeSpan.FromSeconds(awaitSeconds), stoppingToken);
} while (true);
_logger.LogWarning("Execution cancelled");
}
public Coaliter(IConfiguration configuration,
ILogger <Coaliter> logger)
{
_keypath = configuration["PrivateKey"];
_pubKeyPath = configuration["PublicKey"];
_passphrase = configuration["Keypassphrase"];
var keyData = File.ReadAllText(_keypath);
_serverPublicKey = File.ReadAllText(_pubKeyPath).Trim();
_rsa = RSA.Create();
_rsa.ImportFromPem(new ReadOnlySpan <char>(keyData.ToCharArray()));
_connectionString = configuration["State:ConnectionString"];
_connectionOptionsBuilder = new DbContextOptionsBuilder <CoaliteDBContext>();
_connectionOptionsBuilder.UseSqlite(_connectionString);
_dblock = new object();
_logger = logger;
var dbcontext = GetDBConnection();
dbcontext.Database.EnsureCreated(); // simple db = simple approach.
_lastCoalite = null;
}
public string GetAsSignablePayload()
{
return(Coalite.GetAsSignablePayload($"{SignerPublicKey}{Action.ToString()}{ActionPayload}{SignerId}"));
}
