public override Task <TransactionalBlockEssense> GetLastTransactionalBlock(TransactionalBlockRequest request, ServerCallContext context)
{
if (request.PublicKey == null)
{
throw new ArgumentNullException(nameof(request.PublicKey));
}
byte[] keyBytes = request.PublicKey.ToByteArray();
if (keyBytes.Length != Globals.NODE_PUBLIC_KEY_SIZE)
{
throw new ArgumentException($"Public key size must be of {Globals.NODE_PUBLIC_KEY_SIZE} bytes");
}
IKey key = _identityKeyProvider.GetKey(keyBytes);
TransactionalBlockBase transactionalBlockBase = (TransactionalBlockBase)_transactionalDataService.GetLastBlock(key);
TransactionalBlockEssense transactionalBlockEssense = new TransactionalBlockEssense
{
Height = transactionalBlockBase?.BlockHeight ?? 0,
//TODO: need to reconsider hash calculation here since it is potential point of DoS attack
Hash = ByteString.CopyFrom(transactionalBlockBase != null ? _hashCalculation.CalculateHash(transactionalBlockBase.RawData) : new byte[Globals.DEFAULT_HASH_SIZE]),
UpToDateFunds = transactionalBlockBase?.UptodateFunds ?? 0
};
return(Task.FromResult(transactionalBlockEssense));
}
private void FillHeightInfo(TransactionalBlockBase transactionalBlockBase)
{
TransactionalBlockEssense transactionalBlockEssense = _networkAdapter.GetLastBlock(_clientState.GetPublicKey());
transactionalBlockBase.BlockHeight = transactionalBlockEssense.Height + 1;
transactionalBlockBase.HashPrev = transactionalBlockEssense.Hash.ToByteArray();
}
private BlockBase CreateIssueAssetsBlock(string issuanceInfo, byte[][] assetIds, string[] assetInfos, ulong tagId)
{
TransactionalBlockEssense transactionalBlockEssense = _networkAdapter.GetLastBlock(_clientState.GetPublicKey());
IssueAssetsBlock issueAssetsBlock = new IssueAssetsBlock
{
BlockHeight = transactionalBlockEssense.Height + 1,
TagId = tagId,
UptodateFunds = transactionalBlockEssense.UpToDateFunds,
AssetIds = new byte[0][],
AssetAmounts = new ulong[0],
IssuedAssetIds = assetIds,
IssuedAssetInfo = assetInfos,
IssuanceInfo = issuanceInfo
};
FillHeightInfo(issueAssetsBlock);
FillSyncData(issueAssetsBlock);
FillRawData(issueAssetsBlock);
return(issueAssetsBlock);
}
public override void Start()
{
string cmd = null;
Channel channel = new Channel("127.0.0.1", 5050, ChannelCredentials.Insecure);
SyncManager.SyncManagerClient syncManagerClient = new SyncManager.SyncManagerClient(channel);
TransactionalChainManager.TransactionalChainManagerClient transactionalChainManagerClient = new TransactionalChainManager.TransactionalChainManagerClient(channel);
TransactionalBlockEssense transactionalBlockEssense = transactionalChainManagerClient.GetLastTransactionalBlock(
new TransactionalBlockRequest {
PublicKey = ByteString.CopyFrom(_key.Value.ToArray())
});
byte[] hashPrev = transactionalBlockEssense.Hash.ToByteArray();
ulong blockHeight = transactionalBlockEssense.Height + 1;
ulong uptodateFunds = transactionalBlockEssense.UpToDateFunds > 0 ? transactionalBlockEssense.UpToDateFunds : 100000;
ulong tagId = 5005;
byte[][] idCards = new byte[][]
{
GetComplementedAssetId(327483038),
GetComplementedAssetId(327152054),
GetComplementedAssetId(328051065),
};
string[] assetInfos = new string[]
{
"Kirill Gandyl",
"Elena Zaychikov",
"Etel Gandyl"
};
do
{
SyncBlockDescriptor lastSyncBlock = syncManagerClient.GetLastSyncBlock(new Empty());
byte[] syncHash = lastSyncBlock.Hash.ToByteArray();
uint nonce = 1111;
byte[] powHash = GetPowHash(syncHash, nonce);
byte[] targetAddress = new byte[32];
IssueAssetsBlock issueAssetsBlock = new IssueAssetsBlock
{
SyncBlockHeight = lastSyncBlock.Height,
BlockHeight = blockHeight,
Nonce = nonce,
PowHash = powHash,
HashPrev = hashPrev,
TagId = tagId,
IssuanceInfo = "Issue ID cards",
IssuedAssetIds = idCards,
IssuedAssetInfo = assetInfos
};
ISerializer issueAssetsBlockSerializer = _signatureSupportSerializersFactory.Create(issueAssetsBlock);
issueAssetsBlockSerializer.FillBodyAndRowBytes();
RegistryRegisterBlock transactionRegisterBlock = new RegistryRegisterBlock
{
SyncBlockHeight = lastSyncBlock.Height,
BlockHeight = blockHeight,
Nonce = nonce,
PowHash = powHash,
ReferencedPacketType = PacketType.Transactional,
ReferencedBlockType = BlockTypes.Transaction_TransferFunds,
ReferencedBodyHash = _hashCalculation.CalculateHash(issueAssetsBlock.RawData),
ReferencedTarget = targetAddress
};
ISerializer transactionRegisterBlockSerializer = _signatureSupportSerializersFactory.Create(transactionRegisterBlock);
_log.Info($"Sending message: {transactionRegisterBlockSerializer.GetBytes().ToHexString()}");
_communicationService.PostMessage(_keyTarget, transactionRegisterBlockSerializer);
_communicationService.PostMessage(_keyTarget, issueAssetsBlockSerializer);
Console.WriteLine("Block sent. Press <Enter> for next or type 'exit' and press <Enter> for exit...");
cmd = Console.ReadLine();
blockHeight++;
hashPrev = transactionRegisterBlock.ReferencedBodyHash;
} while (!_cancellationToken.IsCancellationRequested && cmd != "exit");
}
public override void Start()
{
string cmd = null;
Channel channel = new Channel("127.0.0.1", 5050, ChannelCredentials.Insecure);
SyncManager.SyncManagerClient syncManagerClient = new SyncManager.SyncManagerClient(channel);
TransactionalChainManager.TransactionalChainManagerClient transactionalChainManagerClient = new TransactionalChainManager.TransactionalChainManagerClient(channel);
TransactionalBlockEssense transactionalBlockEssense = transactionalChainManagerClient.GetLastTransactionalBlock(
new TransactionalBlockRequest {
PublicKey = ByteString.CopyFrom(_key.Value.ToArray())
});
byte[] hashPrev = transactionalBlockEssense.Hash.ToByteArray();
ulong blockHeight = transactionalBlockEssense.Height + 1;
ulong uptodateFunds = transactionalBlockEssense.UpToDateFunds > 0 ? transactionalBlockEssense.UpToDateFunds : 100000;
do
{
SyncBlockDescriptor lastSyncBlock = syncManagerClient.GetLastSyncBlock(new Empty());
uptodateFunds -= 10;
byte[] syncHash = lastSyncBlock.Hash.ToByteArray();
uint nonce = 1111;
byte[] powHash = GetPowHash(syncHash, nonce);
byte[] targetAddress = GetRandomTargetAddress();
TransferFundsBlock transferFundsBlock = new TransferFundsBlock
{
SyncBlockHeight = lastSyncBlock.Height,
BlockHeight = blockHeight,
Nonce = nonce,
PowHash = powHash,
HashPrev = hashPrev,
TargetOriginalHash = targetAddress,
UptodateFunds = uptodateFunds
};
ISerializer transferFundsSerializer = _signatureSupportSerializersFactory.Create(transferFundsBlock);
transferFundsSerializer.FillBodyAndRowBytes();
RegistryRegisterBlock transactionRegisterBlock = new RegistryRegisterBlock
{
SyncBlockHeight = lastSyncBlock.Height,
BlockHeight = blockHeight,
Nonce = nonce,
PowHash = powHash,
ReferencedPacketType = PacketType.Transactional,
ReferencedBlockType = BlockTypes.Transaction_TransferFunds,
ReferencedBodyHash = _hashCalculation.CalculateHash(transferFundsBlock.RawData),
ReferencedTarget = targetAddress
};
ISerializer transactionRegisterBlockSerializer = _signatureSupportSerializersFactory.Create(transactionRegisterBlock);
_log.Info($"Sending message: {transactionRegisterBlockSerializer.GetBytes().ToHexString()}");
_communicationService.PostMessage(_keyTarget, transactionRegisterBlockSerializer);
_communicationService.PostMessage(_keyTarget, transferFundsSerializer);
Console.WriteLine("Block sent. Press <Enter> for next or type 'exit' and press <Enter> for exit...");
cmd = Console.ReadLine();
blockHeight++;
hashPrev = transactionRegisterBlock.ReferencedBodyHash;
} while (!_cancellationToken.IsCancellationRequested && cmd != "exit");
}