private static ExecutionState Nexus_CreateToken(RuntimeVM vm)
{
vm.ExpectStackSize(7);
var owner = vm.PopAddress();
var symbol = vm.PopString("symbol");
var name = vm.PopString("name");
var maxSupply = vm.PopNumber("maxSupply");
var decimals = (int)vm.PopNumber("decimals");
var flags = vm.PopEnum <TokenFlags>("flags");
var script = vm.PopBytes("script");
ContractInterface abi;
if (vm.ProtocolVersion >= 4)
{
var abiBytes = vm.PopBytes("abi bytes");
abi = ContractInterface.FromBytes(abiBytes);
}
else
{
abi = new ContractInterface();
}
vm.CreateToken(owner, symbol, name, maxSupply, decimals, flags, script, abi);
return(ExecutionState.Running);
}
public void UnserializeData(BinaryReader reader)
{
this.MintCount = reader.ReadBigInteger();
this.MaxSupply = reader.ReadBigInteger();
this.Mode = (TokenSeriesMode)reader.ReadByte();
this.Script = reader.ReadByteArray();
var bytes = reader.ReadByteArray();
this.ABI = ContractInterface.FromBytes(bytes);
this.ROM = reader.ReadByteArray();
}
public void UnserializeData(BinaryReader reader)
{
Symbol = reader.ReadVarString();
Name = reader.ReadVarString();
Owner = reader.ReadAddress();
Flags = (TokenFlags)reader.ReadUInt32();
Decimals = reader.ReadInt32();
MaxSupply = reader.ReadBigInteger();
Script = reader.ReadByteArray();
var abiBytes = reader.ReadByteArray();
this.ABI = ContractInterface.FromBytes(abiBytes);
}
private static ExecutionState Nexus_CreateTokenSeries(RuntimeVM vm)
{
vm.ExpectStackSize(5);
var from = vm.PopAddress();
var symbol = vm.PopString("symbol");
var seriesID = vm.PopNumber("series ID");
var maxSupply = vm.PopNumber("max supply");
var mode = vm.PopEnum <TokenSeriesMode>("mode");
var script = vm.PopBytes("script");
var abiBytes = vm.PopBytes("abi bytes");
var abi = ContractInterface.FromBytes(abiBytes);
vm.CreateTokenSeries(symbol, from, seriesID, maxSupply, mode, script, abi);
return(ExecutionState.Running);
}
public void RegisterScript(Address target, byte[] script, byte[] abiBytes)
{
Runtime.Expect(target.IsUser, "must be user address");
Runtime.Expect(target != Runtime.GenesisAddress, "address must not be genesis");
Runtime.Expect(Runtime.IsWitness(target), "invalid witness");
var stake = Runtime.GetStake(target);
Runtime.Expect(stake >= UnitConversion.GetUnitValue(DomainSettings.StakingTokenDecimals), "must have something staked");
Runtime.Expect(script.Length < 1024, "invalid script length");
Runtime.Expect(!_scriptMap.ContainsKey(target), "address already has a script");
var abi = ContractInterface.FromBytes(abiBytes);
Runtime.Expect(abi.MethodCount > 0, "unexpected empty contract abi");
var witnessTriggerName = AccountTrigger.OnWitness.ToString();
if (abi.HasMethod(witnessTriggerName))
{
var witnessCheck = Runtime.InvokeTrigger(false, script, NativeContractKind.Account, abi, witnessTriggerName, Address.Null) != TriggerResult.Failure;
Runtime.Expect(!witnessCheck, "script does not handle OnWitness correctly, case #1");
witnessCheck = Runtime.InvokeTrigger(false, script, NativeContractKind.Account, abi, witnessTriggerName, target) != TriggerResult.Failure;
Runtime.Expect(witnessCheck, "script does not handle OnWitness correctly, case #2");
}
_scriptMap.Set(target, script);
_abiMap.Set(target, abiBytes);
var constructor = abi.FindMethod(SmartContract.ConstructorName);
if (constructor != null)
{
Runtime.CallContext(target.Text, constructor, target);
}
// TODO? Runtime.Notify(EventKind.AddressRegister, target, script);
}
public SmartContract GetContractByName(StorageContext storage, string name)
{
if (Nexus.IsNativeContract(name) || ValidationUtils.IsValidTicker(name))
{
return(Nexus.GetContractByName(storage, name));
}
var address = SmartContract.GetAddressForName(name);
var scriptKey = GetContractKey(address, "script");
if (!storage.Has(scriptKey))
{
return(null);
}
var script = storage.Get(scriptKey);
var abiKey = GetContractKey(address, "abi");
var abiBytes = storage.Get(abiKey);
var abi = ContractInterface.FromBytes(abiBytes);
return(new CustomContract(name, script, abi));
}
private static ExecutionState Runtime_UpgradeContract(RuntimeVM vm)
{
var tx = vm.Transaction;
Throw.IfNull(tx, nameof(tx));
var pow = tx.Hash.GetDifficulty();
vm.Expect(pow >= (int)ProofOfWork.Minimal, "expected proof of work");
vm.ExpectStackSize(1);
var from = vm.PopAddress();
vm.Expect(from.IsUser, "address must be user");
vm.Expect(vm.IsStakeMaster(from), "needs to be master");
vm.Expect(vm.IsWitness(from), "invalid witness");
var contractName = vm.PopString("contractName");
var contractAddress = SmartContract.GetAddressForName(contractName);
var deployed = vm.Chain.IsContractDeployed(vm.Storage, contractAddress);
vm.Expect(deployed, $"{contractName} does not exist");
byte[] script;
ContractInterface abi;
bool isNative = Nexus.IsNativeContract(contractName);
vm.Expect(!isNative, "cannot upgrade native contract");
bool isToken = ValidationUtils.IsValidTicker(contractName);
script = vm.PopBytes("contractScript");
var abiBytes = vm.PopBytes("contractABI");
abi = ContractInterface.FromBytes(abiBytes);
var fuelCost = vm.GetGovernanceValue(Nexus.FuelPerContractDeployTag);
// governance value is in usd fiat, here convert from fiat to fuel amount
fuelCost = vm.GetTokenQuote(DomainSettings.FiatTokenSymbol, DomainSettings.FuelTokenSymbol, fuelCost);
// burn the "cost" tokens
vm.BurnTokens(DomainSettings.FuelTokenSymbol, from, fuelCost);
// ABI validation
ValidateABI(vm, contractName, abi, isNative);
SmartContract oldContract;
if (isToken)
{
oldContract = vm.Nexus.GetTokenContract(vm.Storage, contractName);
}
else
{
oldContract = vm.Chain.GetContractByName(vm.Storage, contractName);
}
vm.Expect(oldContract != null, "could not fetch previous contract");
vm.Expect(abi.Implements(oldContract.ABI), "new abi does not implement all methods of previous abi");
vm.Expect(vm.InvokeTrigger(false, script, contractName, abi, AccountTrigger.OnUpgrade.ToString(), from) == TriggerResult.Success, "OnUpgrade trigger failed");
if (isToken)
{
vm.Nexus.UpgradeTokenContract(vm.RootStorage, contractName, script, abi);
}
else
{
vm.Chain.UpgradeContract(vm.Storage, contractName, script, abi);
}
vm.Notify(EventKind.ContractUpgrade, from, contractName);
return(ExecutionState.Running);
}
private static ExecutionState Runtime_DeployContract(RuntimeVM vm)
{
var tx = vm.Transaction;
Throw.IfNull(tx, nameof(tx));
var pow = tx.Hash.GetDifficulty();
vm.Expect(pow >= (int)ProofOfWork.Minimal, "expected proof of work");
vm.ExpectStackSize(1);
var from = vm.PopAddress();
vm.Expect(from.IsUser, "address must be user");
if (vm.Nexus.HasGenesis)
{
//Runtime.Expect(org != DomainSettings.ValidatorsOrganizationName, "cannot deploy contract via this organization");
vm.Expect(vm.IsStakeMaster(from), "needs to be master");
}
vm.Expect(vm.IsWitness(from), "invalid witness");
var contractName = vm.PopString("contractName");
var contractAddress = SmartContract.GetAddressForName(contractName);
var deployed = vm.Chain.IsContractDeployed(vm.Storage, contractAddress);
// TODO
if (vm.ProtocolVersion >= 2)
{
vm.Expect(!deployed, $"{contractName} is already deployed");
}
else
if (deployed)
{
return(ExecutionState.Running);
}
byte[] script;
ContractInterface abi;
bool isNative = Nexus.IsNativeContract(contractName);
if (isNative)
{
if (contractName == "validator" && vm.GenesisAddress == Address.Null)
{
vm.Nexus.Initialize(from);
}
script = new byte[] { (byte)Opcode.RET };
var contractInstance = vm.Nexus.GetNativeContractByAddress(contractAddress);
abi = contractInstance.ABI;
}
else
{
if (ValidationUtils.IsValidTicker(contractName))
{
throw new VMException(vm, "use createToken instead for this kind of contract");
}
else
{
vm.Expect(ValidationUtils.IsValidIdentifier(contractName), "invalid contract name");
}
var isReserved = ValidationUtils.IsReservedIdentifier(contractName);
if (isReserved && vm.IsWitness(vm.GenesisAddress))
{
isReserved = false;
}
vm.Expect(!isReserved, $"name '{contractName}' reserved by system");
script = vm.PopBytes("contractScript");
var abiBytes = vm.PopBytes("contractABI");
abi = ContractInterface.FromBytes(abiBytes);
var fuelCost = vm.GetGovernanceValue(Nexus.FuelPerContractDeployTag);
// governance value is in usd fiat, here convert from fiat to fuel amount
fuelCost = vm.GetTokenQuote(DomainSettings.FiatTokenSymbol, DomainSettings.FuelTokenSymbol, fuelCost);
// burn the "cost" tokens
vm.BurnTokens(DomainSettings.FuelTokenSymbol, from, fuelCost);
}
// ABI validation
ValidateABI(vm, contractName, abi, isNative);
var success = vm.Chain.DeployContractScript(vm.Storage, from, contractName, contractAddress, script, abi);
vm.Expect(success, $"deployment of {contractName} failed");
var constructor = abi.FindMethod(SmartContract.ConstructorName);
if (constructor != null)
{
vm.CallContext(contractName, constructor, from);
}
vm.Notify(EventKind.ContractDeploy, from, contractName);
return(ExecutionState.Running);
}
private static void DeployOrUpgrade(string[] args, SpookSettings settings, NexusAPI api, BigInteger minFee, bool isUpgrade)
{
if (args.Length != 1)
{
throw new CommandException("Invalid number of arguments, expected file name");
}
DoChecks(api);
var fileName = args[0];
if (!File.Exists(fileName))
{
throw new CommandException("Provided file does not exist");
}
if (!FileExistsCaseSensitive(fileName))
{
throw new CommandException("Provided file case does not match real file name case");
}
var extension = ScriptModule.ScriptExtension;
if (!fileName.EndsWith(extension))
{
throw new CommandException($"Provided file is not a compiled {extension} script");
}
var abiFile = fileName.Replace(extension, ".abi");
if (!File.Exists(abiFile))
{
throw new CommandException($"No ABI file {abiFile} that matches provided script file");
}
var contractName = Path.GetFileNameWithoutExtension(fileName);
var contractScript = File.ReadAllBytes(fileName);
var abiBytes = File.ReadAllBytes(abiFile);
var abi = ContractInterface.FromBytes(abiBytes);
var sb = new ScriptBuilder();
int nexusVersion = 0;
try
{
var nexusDetails = api.Execute("getNexus", new object[] { false });
var root = LunarLabs.Parser.JSON.JSONReader.ReadFromString(nexusDetails);
var governance = root["governance"];
var entry = governance.Children.Where(x => x.GetNode("name").Value == "nexus.protocol.version").FirstOrDefault();
entry = entry.GetNodeByIndex(1);
nexusVersion = Int32.Parse(entry.Value);
}
catch (Exception e)
{
Console.WriteLine(e);
nexusVersion = -1;
}
if (nexusVersion <= 1)
{
throw new CommandException("Failed to obtain nexus version via API");
}
bool isToken = ValidationUtils.IsValidTicker(contractName);
var availableFlags = Enum.GetValues(typeof(TokenFlags)).Cast <TokenFlags>().ToArray();
sb.AllowGas(Keys.Address, Address.Null, minFee, 9999);
if (isUpgrade)
{
// check for modification in flags
if (isToken)
{
var symbol = contractName;
var resultStr = api.Execute("getToken", new[] { symbol, "false" });
logger.Debug($"{resultStr}");
//2021.08.27 sfichera: Fixed api obj deserialization.
//dynamic apiResult = System.Text.Json.JsonSerializer.Deserialize<TokenResult>(resultStr);
dynamic apiResult = JsonConvert.DeserializeObject <TokenResult>(resultStr);
if (apiResult is TokenResult)
{
var oldToken = (TokenResult)apiResult;
var oldFlags = TokenFlags.None;
var splitFlags = oldToken.flags.Split(',');
foreach (var entry in splitFlags)
{
TokenFlags flag;
if (Enum.TryParse <TokenFlags>(entry, true, out flag))
{
oldFlags |= flag;
}
}
foreach (var flag in availableFlags)
{
var propName = "is" + flag;
if (abi.HasMethod(propName))
{
var isSet = ExecuteScript(contractScript, abi, propName).AsBool();
var wasSet = oldFlags.HasFlag(flag);
if (isSet != wasSet)
{
throw new CommandException($"Detected '{flag}' flag change: {wasSet} => {isSet}");
}
}
}
}
else
{
throw new CommandException("could not find any deployed token contract for " + symbol);
}
}
sb.CallInterop("Runtime.UpgradeContract", Keys.Address, contractName, contractScript, abiBytes);
}
else
if (isToken)
{
if (!abi.HasMethod("getName"))
{
throw new CommandException("token contract is missing required 'name' property");
}
string symbol = null;
if (nexusVersion < 6)
{
symbol = contractName;
}
else
{
if (abi.HasMethod("getSymbol"))
{
symbol = ExecuteScript(contractScript, abi, "getSymbol").AsString();
}
if (string.IsNullOrEmpty(symbol))
{
throw new CommandException("token contract 'symbol' property is either missing or returning an empty value");
}
}
var name = ExecuteScript(contractScript, abi, "getName").AsString();
if (string.IsNullOrEmpty(name))
{
throw new CommandException("token contract 'name' property is either missing or returning an empty value");
}
BigInteger maxSupply = abi.HasMethod("getMaxSupply") ? ExecuteScript(contractScript, abi, "getMaxSupply").AsNumber() : 0;
BigInteger decimals = abi.HasMethod("getDecimals") ? ExecuteScript(contractScript, abi, "getDecimals").AsNumber() : 0;
TokenFlags flags = TokenFlags.None;
foreach (var flag in availableFlags)
{
var propName = "is" + flag;
if (abi.HasMethod(propName) && ExecuteScript(contractScript, abi, propName).AsBool())
{
flags |= flag;
}
}
if (nexusVersion < 6)
{
sb.CallInterop("Nexus.CreateToken", Keys.Address, symbol, name, maxSupply, decimals, flags, contractScript, abiBytes);
}
else
{
sb.CallInterop("Nexus.CreateToken", Keys.Address, contractScript, abiBytes);
}
contractName = symbol;
}
else
{
sb.CallInterop("Runtime.DeployContract", Keys.Address, contractName, contractScript, abiBytes);
}
sb.SpendGas(Keys.Address);
var script = sb.EndScript();
if (!isUpgrade)
{
var upgradeTrigger = AccountContract.GetTriggerForABI(AccountTrigger.OnUpgrade);
if (abi.Implements(upgradeTrigger))
{
logger.Message($"{contractName} implements proper triggers, and can be upgraded later.");
}
else
{
logger.Warning($"{contractName} does not implements proper triggers, can't be upgraded later.");
}
}
var hash = ExecuteTransaction(settings, api, script, ProofOfWork.Minimal, Keys);
if (hash != Hash.Null)
{
var expectedEvent = isUpgrade ? EventKind.ContractUpgrade : (isToken ? EventKind.TokenCreate : EventKind.ContractDeploy);
var expectedEventStr = expectedEvent.ToString();
var events = GetTransactionEvents(hash);
if (events.Any(x => x.kind == expectedEventStr))
{
var contractAddress = SmartContract.GetAddressForName(contractName);
string action = isUpgrade ? "Upgraded" : "Deployed";
logger.Message($"{action} {contractName} at {contractAddress}");
}
else
{
throw new CommandException("Transaction was confirmed but deployment event is missing!");
}
}
}
private static void DeployOrUpgrade(string[] args, NexusAPI api, BigInteger minFee, bool isUpgrade)
{
if (args.Length != 1)
{
throw new CommandException("Invalid number of arguments, expected file name");
}
DoChecks(api);
var fileName = args[0];
if (!File.Exists(fileName))
{
throw new CommandException("Provided file does not exist");
}
var extension = ScriptModule.ScriptExtension;
if (!fileName.EndsWith(extension))
{
throw new CommandException($"Provided file is not a compiled {extension} script");
}
var abiFile = fileName.Replace(extension, ".abi");
if (!File.Exists(abiFile))
{
throw new CommandException($"No ABI file {abiFile} that matches provided script file");
}
var contractName = Path.GetFileNameWithoutExtension(fileName);
var contractScript = File.ReadAllBytes(fileName);
var abiBytes = File.ReadAllBytes(abiFile);
var abi = ContractInterface.FromBytes(abiBytes);
var sb = new ScriptBuilder();
bool isToken = ValidationUtils.IsValidTicker(contractName);
var availableFlags = Enum.GetValues(typeof(TokenFlags)).Cast <TokenFlags>().ToArray();
sb.AllowGas(Keys.Address, Address.Null, minFee, 9999);
if (isUpgrade)
{
// check for modification in flags
if (isToken)
{
var symbol = contractName;
var resultStr = api.Execute("getToken", new[] { symbol, "false" });
dynamic apiResult = JsonConvert.DeserializeObject <TokenResult>(resultStr);
if (apiResult is TokenResult)
{
var oldToken = (TokenResult)apiResult;
var oldFlags = TokenFlags.None;
var splitFlags = oldToken.flags.Split(',');
foreach (var entry in splitFlags)
{
TokenFlags flag;
if (Enum.TryParse <TokenFlags>(entry, true, out flag))
{
oldFlags |= flag;
}
}
foreach (var flag in availableFlags)
{
var propName = "is" + flag;
if (abi.HasMethod(propName))
{
var isSet = ExecuteScript(contractScript, abi, propName).AsBool();
var wasSet = oldFlags.HasFlag(flag);
if (isSet != wasSet)
{
throw new CommandException($"Detected '{flag}' flag change: {wasSet} => {isSet}");
}
}
}
}
else
{
throw new CommandException("could not find any deployed token contract for " + symbol);
}
}
sb.CallInterop("Runtime.UpgradeContract", Keys.Address, contractName, contractScript, abiBytes);
}
else
if (isToken)
{
if (!abi.HasMethod("getName"))
{
throw new CommandException("token contract is missing required 'name' property");
}
var symbol = contractName;
var name = ExecuteScript(contractScript, abi, "getName").AsString();
if (string.IsNullOrEmpty(name))
{
throw new CommandException("token contract 'name' property is returning an empty value");
}
BigInteger maxSupply = abi.HasMethod("getMaxSupply") ? ExecuteScript(contractScript, abi, "getMaxSupply").AsNumber() : 0;
BigInteger decimals = abi.HasMethod("getDecimals") ? ExecuteScript(contractScript, abi, "getDecimals").AsNumber() : 0;
TokenFlags flags = TokenFlags.None;
foreach (var flag in availableFlags)
{
var propName = "is" + flag;
if (abi.HasMethod(propName) && ExecuteScript(contractScript, abi, propName).AsBool())
{
flags |= flag;
}
}
sb.CallInterop("Nexus.CreateToken", Keys.Address, symbol, name, maxSupply, decimals, flags, contractScript, abiBytes);
contractName = symbol;
}
else
{
sb.CallInterop("Runtime.DeployContract", Keys.Address, contractName, contractScript, abiBytes);
}
sb.SpendGas(Keys.Address);
var script = sb.EndScript();
if (!isUpgrade)
{
var upgradeTrigger = AccountContract.GetTriggerForABI(AccountTrigger.OnUpgrade);
if (abi.Implements(upgradeTrigger))
{
logger.Message($"{contractName} implements proper triggers, and can be upgraded later.");
}
else
{
logger.Warning($"{contractName} does not implements proper triggers, can't be upgraded later.");
}
}
var hash = ExecuteTransaction(api, script, ProofOfWork.Minimal, Keys);
if (hash != Hash.Null)
{
var expectedEvent = isUpgrade ? EventKind.ContractUpgrade : (isToken ? EventKind.TokenCreate : EventKind.ContractDeploy);
var expectedEventStr = expectedEvent.ToString();
var events = GetTransactionEvents(hash);
if (events.Any(x => x.kind == expectedEventStr))
{
var contractAddress = SmartContract.GetAddressForName(contractName);
string action = isUpgrade ? "Upgraded" : "Deployed";
logger.Message($"{action} {contractName} at {contractAddress}");
}
else
{
throw new CommandException("Transaction was confirmed but deployment event is missing!");
}
}
}