public IRpcMethodResult GetBaseTarget(long blockHeight)
{
try
{
var blockComponent = new BlockComponent();
BlockMsg lastBlock = null;
BlockMsg prevStepBlock = null;
if (blockHeight > 0)
{
lastBlock = blockComponent.GetBlockMsgByHeight(blockHeight - 1);
prevStepBlock = blockComponent.GetBlockMsgByHeight(blockHeight - POC.DIFFIUCLTY_ADJUST_STEP);
}
long baseTarget;
if (lastBlock != null)
{
baseTarget = POC.CalculateBaseTarget(blockHeight, lastBlock, prevStepBlock);
}
else
{
baseTarget = POC.CalculateBaseTarget(0, null, null);
}
return(Ok(baseTarget));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetDifficulty()
{
try
{
var blockComponent = new BlockComponent();
var height = blockComponent.GetLatestHeight();
var newHeight = height + 1;
var previousBlockMsg = blockComponent.GetBlockMsgByHeight(height);
var prevStepBlockMsg = blockComponent.GetBlockMsgByHeight(newHeight - POC.DIFFIUCLTY_ADJUST_STEP - 1);
var bits = POC.CalculateBaseTarget(height, previousBlockMsg, prevStepBlockMsg).ToString();
var result = new GetDifficultyOM()
{
height = newHeight,
hashTarget = bits
};
return(Ok(result));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetBlockByHeight(long height, int format = 0)
{
try
{
var blockComponent = new BlockComponent();
var block = blockComponent.GetBlockMsgByHeight(height);
if (block != null)
{
if (format == 0)
{
var bytes = block.Serialize();
var result = Base16.Encode(bytes);
return(Ok(result));
}
else
{
return(Ok(block));
}
}
else
{
return(Ok());
}
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetBlockHash(long blockHeight)
{
try
{
var blockComponent = new BlockComponent();
var block = blockComponent.GetBlockMsgByHeight(blockHeight);
if (block != null)
{
return(Ok(block.Header.Hash));
}
else
{
return(Ok());
}
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetTxOutSetInfo()
{
try
{
GetTxOutSetInfoOM result = new GetTxOutSetInfoOM();
var blockComponent = new BlockComponent();
var txComponent = new TransactionComponent();
var utxoComponent = new UtxoComponent();
result.height = blockComponent.GetLatestHeight();
result.bestblock = null;
if (result.height >= 0)
{
var bestBlock = blockComponent.GetBlockMsgByHeight(result.height);
result.bestblock = bestBlock != null ? bestBlock.Header.Hash : null;
}
result.transactions = utxoComponent.GetTransactionCounts();
result.txouts = utxoComponent.GetOutputCounts();
long confirmedBalance, unconfirmedBalance;
utxoComponent.GetBalanceInDB(out confirmedBalance, out unconfirmedBalance);
result.total_amount = confirmedBalance;
return(Ok(result));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetBaseTarget(long blockHeight)
{
try
{
var blockComponent = new BlockComponent();
BlockMsg lastBlock = null;
BlockMsg prevStepBlock = null;
if (blockHeight > 0)
{
lastBlock = blockComponent.GetBlockMsgByHeight(blockHeight - 1);
if (blockHeight >= POC.DIFFIUCLTY_ADJUST_STEP)
{
long prevStepHeight = 0;
if (!GlobalParameters.IsTestnet && blockHeight <= POC.DIFFICULTY_CALCULATE_LOGIC_ADJUST_HEIGHT)
{
prevStepHeight = blockHeight - POC.DIFFIUCLTY_ADJUST_STEP - 1;
}
else
{
prevStepHeight = blockHeight - POC.DIFFIUCLTY_ADJUST_STEP;
}
prevStepBlock = blockComponent.GetBlockMsgByHeight(prevStepHeight);
}
}
long baseTarget;
if (lastBlock != null)
{
baseTarget = POC.CalculateBaseTarget(blockHeight, lastBlock, prevStepBlock);
}
else
{
baseTarget = POC.CalculateBaseTarget(0, null, null);
}
return(Ok(baseTarget));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetDifficulty()
{
try
{
var blockComponent = new BlockComponent();
var height = blockComponent.GetLatestHeight();
var newHeight = height + 1;
var previousBlockEntity = blockComponent.GetBlockMsgByHeight(height);
BlockMsg prevStepBlock = null;
if (newHeight >= POC.DIFFIUCLTY_ADJUST_STEP)
{
var prevStepHeight = 0L;
if (!GlobalParameters.IsTestnet && newHeight <= POC.DIFFICULTY_CALCULATE_LOGIC_ADJUST_HEIGHT)
{
prevStepHeight = newHeight - POC.DIFFIUCLTY_ADJUST_STEP - 1;
}
else
{
prevStepHeight = newHeight - POC.DIFFIUCLTY_ADJUST_STEP;
}
prevStepBlock = blockComponent.GetBlockMsgByHeight(prevStepHeight);
}
var bits = POC.CalculateBaseTarget(height, previousBlockEntity, prevStepBlock).ToString();
var result = new GetDifficultyOM()
{
height = newHeight,
hashTarget = bits
};
return(Ok(result));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult GetDifficulty()
{
try
{
var blockComponent = new BlockComponent();
var height = blockComponent.GetLatestHeight();
var newHeight = height + 1;
var previousBlock = blockComponent.GetBlockMsgByHeight(height);
var prev4032Block = blockComponent.GetBlockMsgByHeight(newHeight - POW.DiffiucltyAdjustStep);
long prevBits = 0;
if (previousBlock != null)
{
prevBits = previousBlock.Header.Bits;
}
var work = new POW(newHeight);
var bits = work.CalculateNextWorkTarget(height, prevBits, prev4032Block);
var target = work.ConvertBitsToBigInt(bits).ToString("X").PadLeft(64, '0');
var result = new GetDifficultyOM()
{
height = newHeight,
hashTarget = target
};
return(Ok(result));
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}
public IRpcMethodResult SubmitBlock(string blockData)
{
try
{
var bytes = Base16.Decode(blockData);
var block = new BlockMsg();
int index = 0;
try
{
block.Deserialize(bytes, ref index);
}
catch
{
throw new CommonException(ErrorCode.Service.BlockChain.BLOCK_DESERIALIZE_FAILED);
}
var blockComponent = new BlockComponent();
var blockInDB = blockComponent.GetBlockMsgByHeight(block.Header.Height);
if (blockInDB == null)
{
var result = blockComponent.SaveBlockIntoDB(block);
if (result)
{
Startup.P2PBroadcastBlockHeaderAction(block.Header);
}
else
{
throw new CommonException(ErrorCode.Service.BlockChain.BLOCK_SAVE_FAILED);
}
}
else
{
throw new CommonException(ErrorCode.Service.BlockChain.SAME_HEIGHT_BLOCK_HAS_BEEN_GENERATED);
}
return(Ok());
}
catch (CommonException ce)
{
return(Error(ce.ErrorCode, ce.Message, ce));
}
catch (Exception ex)
{
return(Error(ErrorCode.UNKNOWN_ERROR, ex.Message, ex));
}
}