public void SmartContract_Constructor_NoParamSuccess()
{
LifecycleResult constructionResult = SmartContractConstructor
.Construct(typeof(NoParamContract), this.state);
Assert.True(constructionResult.Success);
Assert.NotNull(constructionResult.Object);
}
public void SmartContract_Constructor_ConstructorInvokedSuccess()
{
LifecycleResult constructionResult = SmartContractConstructor
.Construct(typeof(ConstructorInvokedContract), this.state);
Assert.True(constructionResult.Success);
Assert.NotNull(constructionResult.Object);
Assert.True(((ConstructorInvokedContract)constructionResult.Object).ConstructorInvoked);
}
public void SmartContract_Constructor_OneParamSuccess()
{
ulong startBlock = 12345;
LifecycleResult constructionResult = SmartContractConstructor
.Construct(typeof(OneParamContract), this.state, startBlock);
Assert.True(constructionResult.Success);
Assert.NotNull(constructionResult.Object);
}
public void SmartContract_Constructor_NonpublicStateFieldsSetSuccess()
{
LifecycleResult constructionResult = SmartContractConstructor
.Construct(typeof(NoParamContract), this.state);
Assert.True(constructionResult.Success);
SmartContract contract = constructionResult.Object;
FieldInfo[] fields = typeof(SmartContract).GetFields(
BindingFlags.Instance
| BindingFlags.NonPublic
);
foreach (FieldInfo field in fields)
{
object value = field.GetValue(contract);
switch (field.Name)
{
case "Block":
Assert.Equal(this.state.Block, value);
break;
case "Message":
Assert.Equal(this.state.Message, value);
break;
case "PersistentState":
Assert.Equal(this.state.PersistentState, value);
break;
case "gasMeter":
Assert.Equal(this.state.GasMeter, value);
break;
case "getBalance":
Assert.Equal(this.state.GetBalance, value);
break;
case "internalTransactionExecutor":
Assert.Equal(this.state.InternalTransactionExecutor, value);
break;
case "internalHashHelper":
Assert.Equal(this.state.InternalHashHelper, value);
break;
case "smartContractState":
Assert.Equal(this.state, value);
break;
}
}
}
public void SmartContract_Constructor_InvalidParamSuccess()
{
ulong startBlock = 12345;
LifecycleResult constructionResult = SmartContractConstructor
.Construct(typeof(NoParamContract), this.state, startBlock);
Assert.False(constructionResult.Success);
Assert.Null(constructionResult.Object);
Assert.NotNull(constructionResult.Exception);
}
/// <summary>
/// Creates a new instance of a smart contract by invoking the contract's constructor
/// </summary>
public VmExecutionResult Create(byte[] contractCode,
ISmartContractExecutionContext context,
IGasMeter gasMeter,
IPersistentState persistentState,
IContractStateRepository repository)
{
this.logger.LogTrace("()");
byte[] gasInjectedCode = SmartContractGasInjector.AddGasCalculationToConstructor(contractCode);
Type contractType = Load(gasInjectedCode);
var internalTransferList = new List <TransferInfo>();
IInternalTransactionExecutor internalTransactionExecutor = this.internalTransactionExecutorFactory.Create(repository, internalTransferList);
var balanceState = new BalanceState(repository, context.Message.Value, internalTransferList);
var contractState = new SmartContractState(
context.Block,
context.Message,
persistentState,
gasMeter,
internalTransactionExecutor,
new InternalHashHelper(),
() => balanceState.GetBalance(context.ContractAddress));
// Invoke the constructor of the provided contract code
LifecycleResult result = SmartContractConstructor.Construct(contractType, contractState, context.Parameters);
if (!result.Success)
{
LogException(result.Exception);
this.logger.LogTrace("(-)[CREATE_CONTRACT_INSTANTIATION_FAILED]:{0}={1}", nameof(gasMeter.GasConsumed), gasMeter.GasConsumed);
return(VmExecutionResult.Error(gasMeter.GasConsumed, result.Exception.InnerException ?? result.Exception));
}
else
{
this.logger.LogTrace("[CREATE_CONTRACT_INSTANTIATION_SUCCEEDED]");
}
this.logger.LogTrace("(-):{0}={1}", nameof(gasMeter.GasConsumed), gasMeter.GasConsumed);
return(VmExecutionResult.Success(internalTransferList, gasMeter.GasConsumed, result.Object));
}
private static void ValidateContract(string fileName, IConsole console, string[] parameters, ValidationServiceResult validationServiceResult)
{
byte[] compilation;
SmartContractDecompilation decompilation;
BuildModuleDefinition(console, validationServiceResult, out compilation, out decompilation);
console.WriteLine($"Validating file {fileName}...");
Assembly smartContract = Assembly.Load(compilation);
var serializer = new MethodParameterSerializer();
object[] methodParameters = null;
if (parameters.Length != 0)
{
var methodParametersRaw = new MethodParameterSerializer().ToRaw(parameters);
methodParameters = serializer.ToObjects(methodParametersRaw);
}
validationServiceResult.LifeCycleResult = SmartContractConstructor.Construct(smartContract.ExportedTypes.FirstOrDefault(), new ValidatorSmartContractState(), methodParameters);
if (!validationServiceResult.LifeCycleResult.Success)
{
console.WriteLine("Smart contract construction failed.");
console.WriteLine("If the smart contract is constructed with parameters, please ensure they are provided.");
}
validationServiceResult.DeterminismValidationResult = new SmartContractDeterminismValidator().Validate(decompilation);
validationServiceResult.FormatValidationResult = new SmartContractFormatValidator(ReferencedAssemblyResolver.AllowedAssemblies).Validate(decompilation);
if (!validationServiceResult.DeterminismValidationResult.IsValid || !validationServiceResult.FormatValidationResult.IsValid)
{
console.WriteLine("Smart Contract failed validation. Run validate [FILE] for more info.");
}
console.WriteLine();
}
/// <summary>
/// Creates a new instance of a smart contract by invoking the contract's constructor
/// </summary>
public VmExecutionResult Create(IGasMeter gasMeter,
IContractStateRepository repository,
ICreateData createData,
ITransactionContext transactionContext)
{
this.logger.LogTrace("()");
// TODO: Spend Validation + Creation Fee here.
// Decompile the contract execution code and validate it.
SmartContractDecompilation decompilation = SmartContractDecompiler.GetModuleDefinition(createData.ContractExecutionCode);
SmartContractValidationResult validation = this.validator.Validate(decompilation);
// If validation failed, refund the sender any remaining gas.
if (!validation.IsValid)
{
this.logger.LogTrace("(-)[CONTRACT_VALIDATION_FAILED]");
return(VmExecutionResult.Error(gasMeter.GasConsumed, new SmartContractValidationException(validation.Errors)));
}
byte[] gasInjectedCode = SmartContractGasInjector.AddGasCalculationToConstructor(createData.ContractExecutionCode, decompilation.ContractType.Name);
Type contractType = Load(gasInjectedCode, decompilation.ContractType.Name);
uint160 contractAddress = this.addressGenerator.GenerateAddress(transactionContext.TransactionHash, transactionContext.GetNonceAndIncrement());
// Create an account for the contract in the state repository.
repository.CreateAccount(contractAddress);
IPersistenceStrategy persistenceStrategy = new MeteredPersistenceStrategy(repository, gasMeter, new BasicKeyEncodingStrategy());
var persistentState = new PersistentState(persistenceStrategy, contractAddress, this.network);
var internalTransferList = new List <TransferInfo>();
IInternalTransactionExecutor internalTransactionExecutor = this.internalTransactionExecutorFactory.Create(this, repository, internalTransferList, transactionContext);
var balanceState = new BalanceState(repository, transactionContext.Amount, internalTransferList);
var contractState = new SmartContractState(
new Block(
transactionContext.BlockHeight,
transactionContext.Coinbase.ToAddress(this.network)
),
new Message(
contractAddress.ToAddress(this.network),
transactionContext.From.ToAddress(this.network),
transactionContext.Amount
),
persistentState,
gasMeter,
internalTransactionExecutor,
new InternalHashHelper(),
() => balanceState.GetBalance(contractAddress));
LogExecutionContext(this.logger, contractState.Block, contractState.Message, contractAddress, createData);
// Invoke the constructor of the provided contract code
LifecycleResult result = SmartContractConstructor.Construct(contractType, contractState, createData.MethodParameters);
if (!result.Success)
{
LogException(result.Exception);
this.logger.LogTrace("(-)[CREATE_CONTRACT_INSTANTIATION_FAILED]:{0}={1}", nameof(gasMeter.GasConsumed), gasMeter.GasConsumed);
return(VmExecutionResult.Error(gasMeter.GasConsumed, result.Exception.InnerException ?? result.Exception));
}
this.logger.LogTrace("[CREATE_CONTRACT_INSTANTIATION_SUCCEEDED]");
this.logger.LogTrace("(-):{0}={1}, {2}={3}", nameof(contractAddress), contractAddress, nameof(gasMeter.GasConsumed), gasMeter.GasConsumed);
repository.SetCode(contractAddress, createData.ContractExecutionCode);
repository.SetContractType(contractAddress, contractType.Name);
return(VmExecutionResult.CreationSuccess(contractAddress, internalTransferList, gasMeter.GasConsumed, result.Object));
}
