public async void HandleMessage(IPublishedMessage publishedMessage)
{
try
{
using (var scope = _serviceProvider.CreateScope())
{
// Create a scope so all dependency injections are available.
var text = Encoding.UTF8.GetString(publishedMessage.DataBytes);
var packageMessage = JsonConvert.DeserializeObject <PackageMessage>(text);
//if (_serverIdentityService.Id.Equals(packageMessage.ServerId)) // Do not process own package messages
// return;
logger.LogInformation($"Received message from {packageMessage.ServerId}");
_packageMessageValidator.Validate(packageMessage);
var mediator = scope.ServiceProvider.GetRequiredService <IMediator>();
var package = mediator.SendAndWait(new FetchPackageCommand(packageMessage.File));
if (package == null)
{
logger.LogError($"Error wrong notitifiation returned from FatchPackageCommand");
return;
}
if (package.Timestamps == null || package.Timestamps.Count == 0)
{
logger.LogError($"Error no timestamps was found on package id {package.Id} from server id {packageMessage.ServerId}");
return;
}
var packageValidator = scope.ServiceProvider.GetRequiredService <IPackageSchemaValidator>();
SchemaValidationResult validationResult = packageValidator.Validate(package); //
if (validationResult.ErrorsFound > 0)
{
logger.LogError(validationResult.ToString());
return;
}
var timestampValidator = scope.ServiceProvider.GetRequiredService <ITimestampProofValidator>();
if (!timestampValidator.Validate(package.Timestamps[0], out IList <string> errors))
{
var msg = string.Join(", ", errors);
logger.LogError(msg);
return;
}
//var peers = await Ipfs.PubSub.PublishAsync;
// Now add the package!
await mediator.Send(new AddPackageCommand(package));
}
}
catch (Exception ex)
{
var msg = $"Message from server {publishedMessage.Sender.Id} failed with: {ex.Message}";
logger.LogError(msg);
}
}
private bool ValidatePackage(PackageInfo packageInfo, Package package)
{
if (package == null)
{
_logger.LogError($"Error wrong notitifiation returned from FatchPackageCommand");
return(false);
}
if (package.Timestamps == null || package.Timestamps.Count == 0)
{
_logger.LogError($"Error no timestamps was found on package id {package.Id}");
return(false);
}
// Verify package
SchemaValidationResult validationResult = _packageSchemaValidator.Validate(package); //
if (validationResult.ErrorsFound > 0)
{
_logger.LogError(validationResult.ToString());
return(false);
}
if (!_timestampProofValidator.Validate(package.Timestamps[0], out IList <string> errors))
{
var msg = string.Join(", ", errors);
_logger.LogError(msg);
return(false);
}
if (!ByteComparer.EqualityComparer.Equals(packageInfo.Id, package.Id))
{
_logger.LogError($"Error PackageInfo id {packageInfo.Id} is not the same as package id {package.Id} from file {packageInfo.File}");
return(false);
}
return(true);
}