public BSCInterop(TokenSwapper swapper, EthAPI ethAPI, PBigInteger interopBlockHeight, string[] contracts, uint confirmations)
: base(swapper, BSCWallet.BSCPlatform)
{
string lastBlockHeight = OracleReader.GetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform);
if (string.IsNullOrEmpty(lastBlockHeight))
{
OracleReader.SetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform, new BigInteger(interopBlockHeight.ToSignedByteArray()).ToString());
}
Logger.Message($"interopHeight: {OracleReader.GetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform)}");
Console.WriteLine("encoded bsc: " + BSCWallet.EncodeAddress("0x44E8743A6CAC3E59594C19DD462863A5AA5E06BB"));
Console.WriteLine("encoded eth: " + EthereumWallet.EncodeAddress("0x44E8743A6CAC3E59594C19DD462863A5AA5E06BB"));
Console.WriteLine("from encoded bsc: " + BSCWallet.EncodeAddress("0xA89a34c37Da826085E458c17067DA2F38b6e4763"));
Console.WriteLine("from encoded eth: " + EthereumWallet.EncodeAddress("0xA89a34c37Da826085E458c17067DA2F38b6e4763"));
this.contracts = contracts.ToList();
// add local swap address to contracts
this.contracts.Add(LocalAddress);
this.confirmations = confirmations;
this.ethAPI = ethAPI;
}
public static Tuple <InteropBlock, InteropTransaction[]> MakeInteropBlock(Nexus nexus, Logger logger, EthAPI api
, BigInteger height, string[] contracts, uint confirmations, string[] swapAddress)
{
Hash blockHash = Hash.Null;
var interopTransactions = new List <InteropTransaction>();
//TODO HACK
var combinedAddresses = contracts.ToList();
combinedAddresses.AddRange(swapAddress);
Dictionary <string, Dictionary <string, List <InteropTransfer> > > transfers = new Dictionary <string, Dictionary <string, List <InteropTransfer> > >();
try
{
Func <string, Address> addressEncoder = (address) => { return(EthereumWallet.EncodeAddress(address)); };
Func <Nethereum.RPC.Eth.DTOs.Transaction, Address> addressExtractor = (tx) => { return(EthereumInterop.ExtractInteropAddress(tx, logger)); };
var crawler = new EvmBlockCrawler(logger, combinedAddresses.ToArray(), confirmations, api,
addressEncoder, addressExtractor, EthereumWallet.EthereumPlatform);
// fetch blocks
crawler.Fetch(height);
transfers = crawler.ExtractInteropTransfers(nexus, logger, swapAddress);
}
catch (Exception e)
{
logger.Error("Failed to fetch eth blocks: " + e);
}
if (transfers.Count == 0)
{
var emptyBlock = new InteropBlock(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform, Hash.Null, new Hash[] {});
return(Tuple.Create(emptyBlock, interopTransactions.ToArray()));
}
blockHash = Hash.Parse(transfers.FirstOrDefault().Key);
foreach (var block in transfers)
{
var txTransferDict = block.Value;
foreach (var tx in txTransferDict)
{
var interopTx = MakeInteropTx(logger, tx.Key, tx.Value);
if (interopTx.Hash != Hash.Null)
{
interopTransactions.Add(interopTx);
}
}
}
var hashes = interopTransactions.Select(x => x.Hash).ToArray();
InteropBlock interopBlock = (interopTransactions.Count() > 0)
? new InteropBlock(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform, blockHash, hashes)
: new InteropBlock(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform, Hash.Null, hashes);
return(Tuple.Create(interopBlock, interopTransactions.ToArray()));
}
protected void OnPlatformAddressAdd(string[] args)
{
var platform = args[0];
var externalAddress = args[1];
Address localAddress;
switch (platform)
{
case NeoWallet.NeoPlatform:
localAddress = NeoWallet.EncodeAddress(externalAddress);
break;
case EthereumWallet.EthereumPlatform:
localAddress = EthereumWallet.EncodeAddress(externalAddress);
break;
case BSCWallet.BSCPlatform:
localAddress = BSCWallet.EncodeAddress(externalAddress);
break;
default:
throw new Exception("Unknown platform: " + platform);
}
var minimumFee = _cli.Settings.Node.MinimumFee;
var script = ScriptUtils.BeginScript()
.AllowGas(_cli.NodeKeys.Address, Address.Null, minimumFee, 1500)
.CallContract("interop", nameof(InteropContract.RegisterAddress), _cli.NodeKeys.Address, platform, localAddress, externalAddress)
.SpendGas(_cli.NodeKeys.Address).EndScript();
var expire = Timestamp.Now + TimeSpan.FromMinutes(2);
var tx = new Phantasma.Blockchain.Transaction(_cli.Nexus.Name, _cli.Nexus.RootChain.Name, script, expire, Spook.TxIdentifier);
tx.Mine((int)ProofOfWork.Minimal);
tx.Sign(_cli.NodeKeys);
if (_cli.Mempool != null)
{
_cli.Mempool.Submit(tx);
Console.WriteLine($"Transaction {tx.Hash} submitted to mempool.");
}
else
{
Console.WriteLine("No mempool available");
return;
}
Console.WriteLine($"Added address {externalAddress} to {platform}");
Spook.Logger.Message($"Added address {externalAddress} to {platform}");
}
public InteropTransfers ExtractInteropTransfers(Blockchain.Nexus nexus, Logger logger, string swapAddress)
{
var interopTransfers = new InteropTransfers();
lock (transactions)
{
foreach (var txVo in transactions)
{
var block = txVo.Block;
var txr = txVo.TransactionReceipt;
var tx = txVo.Transaction;
var interopAddress = EthereumInterop.ExtractInteropAddress(tx);
var transferEvents = txr.DecodeAllEvents <TransferEventDTO>();
//var swapEvents = txr.DecodeAllEvents<SwapEventDTO>();
var nodeSwapAddress = EthereumWallet.EncodeAddress(swapAddress);
if (transferEvents.Count > 0 || tx.Value != null && tx.Value.Value > 0)
{
if (!interopTransfers.ContainsKey(block.BlockHash))
{
interopTransfers.Add(block.BlockHash, new Dictionary <string, List <InteropTransfer> >());
}
}
if (transferEvents.Count > 0)
{
var blockId = block.Number.ToString();
var hash = txr.TransactionHash;
foreach (var evt in transferEvents)
{
var targetAddress = EthereumWallet.EncodeAddress(evt.Event.To);
// If it's not our address, skip immediatly, don't log it
if (targetAddress != nodeSwapAddress)
{
continue;
}
logger.Message($"Found ERC20 swap: {blockId} hash: {hash} to: {evt.Event.To} from: {evt.Event.From} value: {evt.Event.Value}");
var asset = EthUtils.FindSymbolFromAsset(nexus, evt.Log.Address);
logger.Message("asset: " + asset);
if (asset == null)
{
logger.Message($"Asset [{evt.Log.Address}] not supported");
continue;
}
var sourceAddress = EthereumWallet.EncodeAddress(evt.Event.From);
var amount = PBigInteger.Parse(evt.Event.Value.ToString());
logger.Message("nodeSwapAddress: " + nodeSwapAddress);
logger.Message("sourceAddress: " + sourceAddress);
logger.Message("targetAddress: " + targetAddress);
logger.Message("amount: " + amount);
if (!interopTransfers[block.BlockHash].ContainsKey(evt.Log.TransactionHash))
{
interopTransfers[block.BlockHash].Add(evt.Log.TransactionHash, new List <InteropTransfer>());
}
interopTransfers[block.BlockHash][evt.Log.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress, // interop address
asset,
amount
)
);
}
}
if (tx.Value != null && tx.Value.Value > 0)
{
logger.Message("ETH:");
logger.Message(block.Number.ToString());
logger.Message(tx.TransactionHash);
logger.Message(tx.To);
logger.Message(tx.From);
logger.Message(tx.Value.ToString());
var targetAddress = EthereumWallet.EncodeAddress(tx.To);
if (targetAddress != nodeSwapAddress)
{
continue;
}
if (!interopTransfers[block.BlockHash].ContainsKey(tx.TransactionHash))
{
interopTransfers[block.BlockHash].Add(tx.TransactionHash, new List <InteropTransfer>());
}
var sourceAddress = EthereumWallet.EncodeAddress(tx.From);
var amount = PBigInteger.Parse(tx.Value.ToString());
interopTransfers[block.BlockHash][tx.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress, // interop address
"ETH", // TODO use const
amount
)
);
}
}
transactions.Clear();
}
// clear transactions after extraction was done
return(interopTransfers);
}
private static Dictionary <string, List <InteropTransfer> > GetInteropTransfers(Nexus nexus, Logger logger,
TransactionReceipt txr, EthAPI api, string swapAddress)
{
logger.Debug($"get interop transfers for tx {txr.TransactionHash}");
var interopTransfers = new Dictionary <string, List <InteropTransfer> >();
Nethereum.RPC.Eth.DTOs.Transaction tx = null;
try
{
// tx to get the eth transfer if any
tx = api.GetTransaction(txr.TransactionHash);
}
catch (Exception e)
{
logger.Error("Getting eth tx failed: " + e.Message);
}
logger.Debug("Transaction status: " + txr.Status.Value);
// check if tx has failed
if (txr.Status.Value == 0)
{
logger.Error($"tx {txr.TransactionHash} failed");
return(interopTransfers);
}
var nodeSwapAddress = EthereumWallet.EncodeAddress(swapAddress);
var events = txr.DecodeAllEvents <TransferEventDTO>();
var interopAddress = ExtractInteropAddress(tx);
// ERC20
foreach (var evt in events)
{
var asset = EthUtils.FindSymbolFromAsset(nexus, evt.Log.Address);
if (asset == null)
{
logger.Warning($"Asset [{evt.Log.Address}] not supported");
continue;
}
var targetAddress = EthereumWallet.EncodeAddress(evt.Event.To);
var sourceAddress = EthereumWallet.EncodeAddress(evt.Event.From);
var amount = PBigInteger.Parse(evt.Event.Value.ToString());
if (targetAddress.Equals(nodeSwapAddress))
{
if (!interopTransfers.ContainsKey(evt.Log.TransactionHash))
{
interopTransfers.Add(evt.Log.TransactionHash, new List <InteropTransfer>());
}
interopTransfers[evt.Log.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress,
asset,
amount
)
);
}
}
if (tx.Value != null && tx.Value.Value > 0)
{
var targetAddress = EthereumWallet.EncodeAddress(tx.To);
var sourceAddress = EthereumWallet.EncodeAddress(tx.From);
if (targetAddress.Equals(nodeSwapAddress))
{
var amount = PBigInteger.Parse(tx.Value.ToString());
if (!interopTransfers.ContainsKey(tx.TransactionHash))
{
interopTransfers.Add(tx.TransactionHash, new List <InteropTransfer>());
}
interopTransfers[tx.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress,
"ETH", // TODO use const
amount
)
);
}
}
return(interopTransfers);
}
private static Dictionary <string, List <InteropTransfer> > GetInteropTransfers(Nexus nexus, Logger logger,
TransactionReceipt txr, EthAPI api, string[] swapAddresses)
{
logger.Debug($"get interop transfers for tx {txr.TransactionHash}");
var interopTransfers = new Dictionary <string, List <InteropTransfer> >();
Nethereum.RPC.Eth.DTOs.Transaction tx = null;
try
{
// tx to get the eth transfer if any
tx = api.GetTransaction(txr.TransactionHash);
}
catch (Exception e)
{
logger.Error("Getting eth tx failed: " + e.Message);
}
logger.Debug("Transaction status: " + txr.Status.Value);
// check if tx has failed
if (txr.Status.Value == 0)
{
logger.Error($"tx {txr.TransactionHash} failed");
return(interopTransfers);
}
var nodeSwapAddresses = swapAddresses.Select(x => EthereumWallet.EncodeAddress(x));
Address interopAddress;
try
{
interopAddress = ExtractInteropAddress(tx, logger);
}
catch (Exception e)
{
if (e.ToString().Contains("Header byte out of range"))
{
// Ignoring this exception and skipping this tx.
// RecoverFromSignature() crashed and we cannot avoid it atm.
// Related to EIP-1559, example of probematic tx: https://etherscan.io/tx/0xb022c146d8d1e684de0c1faae43e7ce36afb6969719adfdcafcc5bb7d5913185
// TODO Fix by updating to new Nethereum and dealing with EIP-1559 better.
logger.Debug("Warning: Skipping 'Header byte out of range' tx: " + tx.TransactionHash);
return(interopTransfers);
}
else
{
throw;
}
}
// ERC721 (NFT)
// TODO currently this code block is mostly copypaste from ERC20 block, later make a single method for both...
//var erc721_events = txr.DecodeAllEvents<Nethereum.StandardNonFungibleTokenERC721.ContractDefinition.TransferEventDTOBase>();
//foreach (var evt in erc721_events)
//{
// var asset = EthUtils.FindSymbolFromAsset(nexus, evt.Log.Address);
// if (asset == null)
// {
// logger.Warning($"Asset [{evt.Log.Address}] not supported");
// continue;
// }
// var targetAddress = EthereumWallet.EncodeAddress(evt.Event.To);
// var sourceAddress = EthereumWallet.EncodeAddress(evt.Event.From);
// var tokenID = PBigInteger.Parse(evt.Event.TokenId.ToString());
// if (nodeSwapAddresses.Contains(targetAddress))
// {
// if (!interopTransfers.ContainsKey(evt.Log.TransactionHash))
// {
// interopTransfers.Add(evt.Log.TransactionHash, new List<InteropTransfer>());
// }
// string tokenURI = FetchTokenURI(evt.Log.Address, evt.Event.TokenId);
// interopTransfers[evt.Log.TransactionHash].Add
// (
// new InteropTransfer
// (
// EthereumWallet.EthereumPlatform,
// sourceAddress,
// DomainSettings.PlatformName,
// targetAddress,
// interopAddress,
// asset,
// tokenID,
// System.Text.Encoding.UTF8.GetBytes(tokenURI)
// )
// );
// }
//}
// ERC20
var erc20_events = txr.DecodeAllEvents <TransferEventDTO>();
foreach (var evt in erc20_events)
{
var asset = EthUtils.FindSymbolFromAsset(EthereumWallet.EthereumPlatform, nexus, evt.Log.Address);
if (asset == null)
{
logger.Warning($"Asset [{evt.Log.Address}] not supported");
continue;
}
var targetAddress = EthereumWallet.EncodeAddress(evt.Event.To);
var sourceAddress = EthereumWallet.EncodeAddress(evt.Event.From);
var amount = PBigInteger.Parse(evt.Event.Value.ToString());
if (nodeSwapAddresses.Contains(targetAddress))
{
if (!interopTransfers.ContainsKey(evt.Log.TransactionHash))
{
interopTransfers.Add(evt.Log.TransactionHash, new List <InteropTransfer>());
}
interopTransfers[evt.Log.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress,
asset,
amount
)
);
}
}
if (tx.Value != null && tx.Value.Value > 0)
{
var targetAddress = EthereumWallet.EncodeAddress(tx.To);
var sourceAddress = EthereumWallet.EncodeAddress(tx.From);
if (nodeSwapAddresses.Contains(targetAddress))
{
var amount = PBigInteger.Parse(tx.Value.ToString());
if (!interopTransfers.ContainsKey(tx.TransactionHash))
{
interopTransfers.Add(tx.TransactionHash, new List <InteropTransfer>());
}
interopTransfers[tx.TransactionHash].Add
(
new InteropTransfer
(
EthereumWallet.EthereumPlatform,
sourceAddress,
DomainSettings.PlatformName,
targetAddress,
interopAddress,
"ETH", // TODO use const
amount
)
);
}
}
return(interopTransfers);
}