private BaseResponse <bool> AcceptBlock(DAM.Block.BlockBase incomingBlock, string senderNodeId)
{
if (incomingBlock == null)
{
return(new ErrorResponse <bool>("The incoming block cannot be null!", false));
}
if (_blockchainService.BlockExists(incomingBlock.UniqueId))
{
_statisticService.RegisterRejectedBlock();
return(new ErrorResponse <bool>("The block already exists!", false));
}
var mappedBlock = LocalMapper.Map <BlockBase>(incomingBlock);
if (incomingBlock is DAM.Block.Block block && !incomingBlock.IsGenesis)
{
var parentBlockValidationResult = ValidateParentBlock(block, senderNodeId);
if (!parentBlockValidationResult.IsSuccess)
{
_statisticService.RegisterRejectedBlock();
return(parentBlockValidationResult);
}
var parentBlock = _blockchainService.GetBlock(block.ParentUniqueId);
if (parentBlock == null || parentBlock.Depth + 1 != mappedBlock.Depth)
{
_statisticService.RegisterRejectedBlock();
return(new ErrorResponse <bool>("The depth of incoming block is incorrect!", false));
}
var mappedParentBlock = LocalMapper.Map <BlockBase>(parentBlock);
((Block)mappedBlock).Parent = mappedParentBlock;
}
var duplicatesValidationResult = ValidateTransactionsDuplicates(mappedBlock);
if (!duplicatesValidationResult.IsSuccess)
{
return(duplicatesValidationResult);
}
var validationResult = _blockchainValidator.Validate(mappedBlock);
if (!validationResult.IsSuccess)
{
_statisticService.RegisterRejectedBlock();
return(new ErrorResponse <bool>("The validation for the block failed!", false, validationResult.Errors));
}
_blockchainService.AddBlock(incomingBlock);
return(new SuccessResponse <bool>("The block has been accepted and appended!", true));
}
private void DistributeBlock(DAM.Block.BlockBase blockBase)
{
var blockJson = JsonConvert.SerializeObject(blockBase);
var base64String = Convert.ToBase64String(Encoding.UTF8.GetBytes(blockJson));
var encodedBlock = new EncodedBlock
{
Id = Guid.NewGuid().ToString(),
Base64Block = base64String,
NodeSenderId = BlockchainNodeConfiguration.NodeId,
NodesAcceptedIds = new List <string>()
};
DistributeBlock(encodedBlock);
}
