private void OnInvMessageReceived(InvPayload payload)
{
UInt256[] hashes = payload.Hashes.Where(p => knownHashes.Add(p)).ToArray();
if (hashes.Length == 0)
{
return;
}
switch (payload.Type)
{
case InventoryType.Block:
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
hashes = hashes.Where(p => !snapshot.ContainsBlock(p)).ToArray();
break;
case InventoryType.Tx:
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
hashes = hashes.Where(p => !snapshot.ContainsTransaction(p)).ToArray();
break;
}
if (hashes.Length == 0)
{
return;
}
system.TaskManager.Tell(new TaskManager.NewTasks {
Payload = InvPayload.Create(payload.Type, hashes)
}, Context.Parent);
}
public Fixed8 AvailableBonus()
{
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
return(snapshot.CalculateBonus(currentWallet.GetUnclaimedCoins().Select(p => p.Reference)));
}
}
public ClaimTransaction Claim()
{
if (this.AvailableBonus() == Fixed8.Zero)
{
Console.WriteLine($"no gas to claim");
return(null);
}
CoinReference[] claims = currentWallet.GetUnclaimedCoins().Select(p => p.Reference).ToArray();
if (claims.Length == 0)
{
return(null);
}
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
ClaimTransaction tx = new ClaimTransaction
{
Claims = claims,
Attributes = new TransactionAttribute[0],
Inputs = new CoinReference[0],
Outputs = new[]
{
new TransactionOutput
{
AssetId = Blockchain.UtilityToken.Hash,
Value = snapshot.CalculateBonus(claims),
ScriptHash = currentWallet.GetChangeAddress()
}
}
};
return((ClaimTransaction)SignTransaction(tx));
}
}
public void Reset(Wallet wallet)
{
Snapshot?.Dispose();
Snapshot = Blockchain.Singleton.GetSnapshot();
State = ConsensusState.Initial;
PrevHash = Snapshot.CurrentBlockHash;
BlockIndex = Snapshot.Height + 1;
ViewNumber = 0;
Validators = Snapshot.GetValidators();
MyIndex = -1;
PrimaryIndex = BlockIndex % (uint)Validators.Length;
TransactionHashes = null;
Signatures = new byte[Validators.Length][];
ExpectedView = new byte[Validators.Length];
KeyPair = null;
for (int i = 0; i < Validators.Length; i++)
{
WalletAccount account = wallet.GetAccount(Validators[i]);
if (account?.HasKey == true)
{
MyIndex = i;
KeyPair = account.GetKey();
break;
}
}
_header = null;
}
public static ApplicationEngine Run(byte[] script, IScriptContainer container = null, Block persisting_block = null, bool testMode = false)
{
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
snapshot.PersistingBlock = persisting_block ?? new Block
{
Version = 0,
PrevHash = snapshot.CurrentBlockHash,
MerkleRoot = new UInt256(),
Timestamp = snapshot.Blocks[snapshot.CurrentBlockHash].TrimmedBlock.Timestamp + Blockchain.SecondsPerBlock,
Index = snapshot.Height + 1,
ConsensusData = 0,
NextConsensus = snapshot.Blocks[snapshot.CurrentBlockHash].TrimmedBlock.NextConsensus,
Witness = new Witness
{
InvocationScript = new byte[0],
VerificationScript = new byte[0]
},
Transactions = new Transaction[0]
};
ApplicationEngine engine = new ApplicationEngine(TriggerType.Application, container, snapshot, Fixed8.Zero, testMode);
engine.LoadScript(script);
engine.Execute();
return(engine);
}
}
public ApplicationEngine(TriggerType trigger, IScriptContainer container, Snapshot snapshot, Fixed8 gas, bool testMode = false)
: base(container, Cryptography.Crypto.Default, snapshot, new TrustEDUService(trigger, snapshot))
{
this.gas_amount = gas_free + gas.GetData();
this.testMode = testMode;
this.snapshot = snapshot;
}
public override UInt160[] GetScriptHashesForVerifying(Snapshot snapshot)
{
HashSet <UInt160> hashes = new HashSet <UInt160>(base.GetScriptHashesForVerifying(snapshot));
foreach (TransactionResult result in GetTransactionResults().Where(p => p.Amount < Fixed8.Zero))
{
AssetState asset = snapshot.Assets.TryGet(result.AssetId);
if (asset == null)
{
throw new InvalidOperationException();
}
hashes.Add(asset.Issuer);
}
return(hashes.OrderBy(p => p).ToArray());
}
public Fixed8 UnavailableBonus()
{
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
uint height = snapshot.Height + 1;
Fixed8 unavailable;
try
{
unavailable = snapshot.CalculateBonus(currentWallet.FindUnspentCoins().Where(p => p.Output.AssetId.Equals(Blockchain.GoverningToken.Hash)).Select(p => p.Reference), height);
}
catch (Exception)
{
unavailable = Fixed8.Zero;
}
return(unavailable);
}
}
private bool Transaction_GetUnspentCoins(ExecutionEngine engine)
{
if (engine.CurrentContext.EvaluationStack.Pop() is InteropContract _interface)
{
Transaction tx = _interface.GetInterface <Transaction>();
if (tx == null)
{
return(false);
}
TransactionOutput[] outputs = Snapshot.GetUnspent(tx.Hash).ToArray();
if (outputs.Length > ApplicationEngine.MaxArraySize)
{
return(false);
}
engine.CurrentContext.EvaluationStack.Push(outputs.Select(p => StackItem.FromInterface(p)).ToArray());
return(true);
}
return(false);
}
public override bool Verify(Snapshot snapshot, IEnumerable <Transaction> mempool)
{
if (!base.Verify(snapshot, mempool))
{
return(false);
}
TransactionResult[] results = GetTransactionResults()?.Where(p => p.Amount < Fixed8.Zero).ToArray();
if (results == null)
{
return(false);
}
foreach (TransactionResult r in results)
{
AssetState asset = snapshot.Assets.TryGet(r.AssetId);
if (asset == null)
{
return(false);
}
if (asset.Amount < Fixed8.Zero)
{
continue;
}
Fixed8 quantityIssued =
asset.Available
+ mempool.OfType <IssueTransaction>()
.Where(p => p != this)
.SelectMany(p => p.Outputs)
.Where(p => p.AssetId == r.AssetId)
.Sum(p => p.Value);
if (asset.Amount - quantityIssued < -r.Amount)
{
return(false);
}
}
return(true);
}
public TrustEDUService(TriggerType trigger, Snapshot snapshot)
: base(trigger, snapshot)
{
Register("TrustEDU.Runtime.GetTrigger", Runtime_GetTrigger);
Register("TrustEDU.Runtime.CheckWitness", Runtime_CheckWitness);
Register("TrustEDU.Runtime.Notify", Runtime_Notify);
Register("TrustEDU.Runtime.Log", Runtime_Log);
Register("TrustEDU.Runtime.GetTime", Runtime_GetTime);
Register("TrustEDU.Runtime.Serialize", Runtime_Serialize);
Register("TrustEDU.Runtime.Deserialize", Runtime_Deserialize);
Register("TrustEDU.Blockchain.GetHeight", Blockchain_GetHeight);
Register("TrustEDU.Blockchain.GetHeader", Blockchain_GetHeader);
Register("TrustEDU.Blockchain.GetBlock", Blockchain_GetBlock);
Register("TrustEDU.Blockchain.GetTransaction", Blockchain_GetTransaction);
Register("TrustEDU.Blockchain.GetTransactionHeight", Blockchain_GetTransactionHeight);
Register("TrustEDU.Blockchain.GetAccount", Blockchain_GetAccount);
Register("TrustEDU.Blockchain.GetValidators", Blockchain_GetValidators);
Register("TrustEDU.Blockchain.GetAsset", Blockchain_GetAsset);
Register("TrustEDU.Blockchain.GetContract", Blockchain_GetContract);
Register("TrustEDU.Header.GetHash", Header_GetHash);
Register("TrustEDU.Header.GetVersion", Header_GetVersion);
Register("TrustEDU.Header.GetPrevHash", Header_GetPrevHash);
Register("TrustEDU.Header.GetMerkleRoot", Header_GetMerkleRoot);
Register("TrustEDU.Header.GetTimestamp", Header_GetTimestamp);
Register("TrustEDU.Header.GetIndex", Header_GetIndex);
Register("TrustEDU.Header.GetConsensusData", Header_GetConsensusData);
Register("TrustEDU.Header.GetNextConsensus", Header_GetNextConsensus);
Register("TrustEDU.Block.GetTransactionCount", Block_GetTransactionCount);
Register("TrustEDU.Block.GetTransactions", Block_GetTransactions);
Register("TrustEDU.Block.GetTransaction", Block_GetTransaction);
Register("TrustEDU.Transaction.GetHash", Transaction_GetHash);
Register("TrustEDU.Transaction.GetType", Transaction_GetType);
Register("TrustEDU.Transaction.GetAttributes", Transaction_GetAttributes);
Register("TrustEDU.Transaction.GetInputs", Transaction_GetInputs);
Register("TrustEDU.Transaction.GetOutputs", Transaction_GetOutputs);
Register("TrustEDU.Transaction.GetReferences", Transaction_GetReferences);
Register("TrustEDU.Transaction.GetUnspentCoins", Transaction_GetUnspentCoins);
Register("TrustEDU.InvocationTransaction.GetScript", InvocationTransaction_GetScript);
Register("TrustEDU.Attribute.GetUsage", Attribute_GetUsage);
Register("TrustEDU.Attribute.GetData", Attribute_GetData);
Register("TrustEDU.Input.GetHash", Input_GetHash);
Register("TrustEDU.Input.GetIndex", Input_GetIndex);
Register("TrustEDU.Output.GetAssetId", Output_GetAssetId);
Register("TrustEDU.Output.GetValue", Output_GetValue);
Register("TrustEDU.Output.GetScriptHash", Output_GetScriptHash);
Register("TrustEDU.Account.GetScriptHash", Account_GetScriptHash);
Register("TrustEDU.Account.GetVotes", Account_GetVotes);
Register("TrustEDU.Account.GetBalance", Account_GetBalance);
Register("TrustEDU.Asset.Create", Asset_Create);
Register("TrustEDU.Asset.Renew", Asset_Renew);
Register("TrustEDU.Asset.GetAssetId", Asset_GetAssetId);
Register("TrustEDU.Asset.GetAssetType", Asset_GetAssetType);
Register("TrustEDU.Asset.GetAmount", Asset_GetAmount);
Register("TrustEDU.Asset.GetAvailable", Asset_GetAvailable);
Register("TrustEDU.Asset.GetPrecision", Asset_GetPrecision);
Register("TrustEDU.Asset.GetOwner", Asset_GetOwner);
Register("TrustEDU.Asset.GetAdmin", Asset_GetAdmin);
Register("TrustEDU.Asset.GetIssuer", Asset_GetIssuer);
Register("TrustEDU.Contract.Create", Contract_Create);
Register("TrustEDU.Contract.Migrate", Contract_Migrate);
Register("TrustEDU.Contract.Destroy", Contract_Destroy);
Register("TrustEDU.Contract.GetScript", Contract_GetScript);
Register("TrustEDU.Contract.IsPayable", Contract_IsPayable);
Register("TrustEDU.Contract.GetStorageContext", Contract_GetStorageContext);
Register("TrustEDU.Storage.GetContext", Storage_GetContext);
Register("TrustEDU.Storage.GetReadOnlyContext", Storage_GetReadOnlyContext);
Register("TrustEDU.Storage.Get", Storage_Get);
Register("TrustEDU.Storage.Put", Storage_Put);
Register("TrustEDU.Storage.Delete", Storage_Delete);
Register("TrustEDU.Storage.Find", Storage_Find);
Register("TrustEDU.StorageContext.AsReadOnly", StorageContext_AsReadOnly);
Register("TrustEDU.Enumerator.Create", Enumerator_Create);
Register("TrustEDU.Enumerator.Next", Enumerator_Next);
Register("TrustEDU.Enumerator.Value", Enumerator_Value);
Register("TrustEDU.Enumerator.Concat", Enumerator_Concat);
Register("TrustEDU.Iterator.Create", Iterator_Create);
Register("TrustEDU.Iterator.Key", Iterator_Key);
Register("TrustEDU.Iterator.Keys", Iterator_Keys);
Register("TrustEDU.Iterator.Values", Iterator_Values);
Register("TrustEDU.Iterator.Next", Enumerator_Next);
Register("TrustEDU.Iterator.Value", Enumerator_Value);
Register("AntShares.Runtime.CheckWitness", Runtime_CheckWitness);
Register("AntShares.Runtime.Notify", Runtime_Notify);
Register("AntShares.Runtime.Log", Runtime_Log);
Register("AntShares.Blockchain.GetHeight", Blockchain_GetHeight);
Register("AntShares.Blockchain.GetHeader", Blockchain_GetHeader);
Register("AntShares.Blockchain.GetBlock", Blockchain_GetBlock);
Register("AntShares.Blockchain.GetTransaction", Blockchain_GetTransaction);
Register("AntShares.Blockchain.GetAccount", Blockchain_GetAccount);
Register("AntShares.Blockchain.GetValidators", Blockchain_GetValidators);
Register("AntShares.Blockchain.GetAsset", Blockchain_GetAsset);
Register("AntShares.Blockchain.GetContract", Blockchain_GetContract);
Register("AntShares.Header.GetHash", Header_GetHash);
Register("AntShares.Header.GetVersion", Header_GetVersion);
Register("AntShares.Header.GetPrevHash", Header_GetPrevHash);
Register("AntShares.Header.GetMerkleRoot", Header_GetMerkleRoot);
Register("AntShares.Header.GetTimestamp", Header_GetTimestamp);
Register("AntShares.Header.GetConsensusData", Header_GetConsensusData);
Register("AntShares.Header.GetNextConsensus", Header_GetNextConsensus);
Register("AntShares.Block.GetTransactionCount", Block_GetTransactionCount);
Register("AntShares.Block.GetTransactions", Block_GetTransactions);
Register("AntShares.Block.GetTransaction", Block_GetTransaction);
Register("AntShares.Transaction.GetHash", Transaction_GetHash);
Register("AntShares.Transaction.GetType", Transaction_GetType);
Register("AntShares.Transaction.GetAttributes", Transaction_GetAttributes);
Register("AntShares.Transaction.GetInputs", Transaction_GetInputs);
Register("AntShares.Transaction.GetOutputs", Transaction_GetOutputs);
Register("AntShares.Transaction.GetReferences", Transaction_GetReferences);
Register("AntShares.Attribute.GetUsage", Attribute_GetUsage);
Register("AntShares.Attribute.GetData", Attribute_GetData);
Register("AntShares.Input.GetHash", Input_GetHash);
Register("AntShares.Input.GetIndex", Input_GetIndex);
Register("AntShares.Output.GetAssetId", Output_GetAssetId);
Register("AntShares.Output.GetValue", Output_GetValue);
Register("AntShares.Output.GetScriptHash", Output_GetScriptHash);
Register("AntShares.Account.GetScriptHash", Account_GetScriptHash);
Register("AntShares.Account.GetVotes", Account_GetVotes);
Register("AntShares.Account.GetBalance", Account_GetBalance);
Register("AntShares.Asset.Create", Asset_Create);
Register("AntShares.Asset.Renew", Asset_Renew);
Register("AntShares.Asset.GetAssetId", Asset_GetAssetId);
Register("AntShares.Asset.GetAssetType", Asset_GetAssetType);
Register("AntShares.Asset.GetAmount", Asset_GetAmount);
Register("AntShares.Asset.GetAvailable", Asset_GetAvailable);
Register("AntShares.Asset.GetPrecision", Asset_GetPrecision);
Register("AntShares.Asset.GetOwner", Asset_GetOwner);
Register("AntShares.Asset.GetAdmin", Asset_GetAdmin);
Register("AntShares.Asset.GetIssuer", Asset_GetIssuer);
Register("AntShares.Contract.Create", Contract_Create);
Register("AntShares.Contract.Migrate", Contract_Migrate);
Register("AntShares.Contract.Destroy", Contract_Destroy);
Register("AntShares.Contract.GetScript", Contract_GetScript);
Register("AntShares.Contract.GetStorageContext", Contract_GetStorageContext);
Register("AntShares.Storage.GetContext", Storage_GetContext);
Register("AntShares.Storage.Get", Storage_Get);
Register("AntShares.Storage.Put", Storage_Put);
Register("AntShares.Storage.Delete", Storage_Delete);
}
private bool Blockchain_GetValidators(ExecutionEngine engine)
{
ECPoint[] validators = Snapshot.GetValidators();
engine.CurrentContext.EvaluationStack.Push(validators.Select(p => (StackItem)p.EncodePoint(true)).ToArray());
return(true);
}