private bool AppChain_ChangeValidators(ExecutionEngine engine)
{
if (Trigger != TriggerType.Application)
{
return(false);
}
UInt160 hash = new UInt160(engine.CurrentContext.EvaluationStack.Pop().GetByteArray());
AppChainState state = Snapshot.AppChains.TryGet(hash);
if (state == null)
{
return(false);
}
int seedCount = (int)engine.CurrentContext.EvaluationStack.Pop().GetBigInteger();
string[] seedList = new string[seedCount];
for (int i = 0; i < seedCount; i++)
{
seedList[i] = Encoding.UTF8.GetString(engine.CurrentContext.EvaluationStack.Pop().GetByteArray());
}
state.SeedList = seedList;
LocalNode appnode = LocalNode.GetLocalNode(hash);
if (appnode != null)
{
appnode.SeedList = seedList;
}
return(true);
}
public ConsensusService(ZoroSystem system, Wallet wallet, UInt160 chainHash)
{
this.system = system;
this.wallet = wallet;
this.chainHash = chainHash;
this.localNode = LocalNode.GetLocalNode(chainHash);
this.blockchain = Blockchain.GetBlockchain(chainHash);
}
private JObject Process(string method, JArray _params)
{
switch (method)
{
case "getaccountstate":
{
UInt160 script_hash = _params[0].AsString().ToScriptHash();
AccountState account = Blockchain.Root.Store.GetAccounts().TryGet(script_hash) ?? new AccountState(script_hash);
return(account.ToJson());
}
case "getassetstate":
{
UInt256 asset_id = UInt256.Parse(_params[0].AsString());
AssetState asset = Blockchain.Root.Store.GetAssets().TryGet(asset_id);
return(asset?.ToJson() ?? throw new RpcException(-100, "Unknown asset"));
}
case "getbalance":
if (wallet == null)
{
throw new RpcException(-400, "Access denied.");
}
else
{
JObject json = new JObject();
switch (UIntBase.Parse(_params[0].AsString()))
{
case UInt160 asset_id_160: //NEP-5 balance
json["balance"] = wallet.GetAvailable(asset_id_160).ToString();
break;
case UInt256 asset_id_256: //Global Assets balance
IEnumerable <Coin> coins = wallet.GetCoins().Where(p => !p.State.HasFlag(CoinState.Spent) && p.Output.AssetId.Equals(asset_id_256));
json["balance"] = coins.Sum(p => p.Output.Value).ToString();
json["confirmed"] = coins.Where(p => p.State.HasFlag(CoinState.Confirmed)).Sum(p => p.Output.Value).ToString();
break;
}
return(json);
}
case "getbestblockhash":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
return(blockchain.CurrentBlockHash.ToString());
}
case "getblock":
{
Block block;
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
if (_params[1] is JNumber)
{
uint index = (uint)_params[1].AsNumber();
block = blockchain.Store.GetBlock(index);
}
else
{
UInt256 hash = UInt256.Parse(_params[1].AsString());
block = blockchain.Store.GetBlock(hash);
}
if (block == null)
{
throw new RpcException(-100, "Unknown block");
}
bool verbose = _params.Count >= 3 && _params[2].AsBooleanOrDefault(false);
if (verbose)
{
JObject json = block.ToJson();
json["confirmations"] = blockchain.Height - block.Index + 1;
UInt256 hash = blockchain.Store.GetNextBlockHash(block.Hash);
if (hash != null)
{
json["nextblockhash"] = hash.ToString();
}
return(json);
}
return(block.ToArray().ToHexString());
}
case "getblockcount":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
return(blockchain.Height + 1);
}
case "getblockhash":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
uint height = (uint)_params[1].AsNumber();
if (height <= blockchain.Height)
{
return(blockchain.GetBlockHash(height).ToString());
}
throw new RpcException(-100, "Invalid Height");
}
case "getblockheader":
{
Header header;
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
if (_params[1] is JNumber)
{
uint height = (uint)_params[1].AsNumber();
header = blockchain.Store.GetHeader(height);
}
else
{
UInt256 hash = UInt256.Parse(_params[1].AsString());
header = blockchain.Store.GetHeader(hash);
}
if (header == null)
{
throw new RpcException(-100, "Unknown block");
}
bool verbose = _params.Count >= 3 && _params[2].AsBooleanOrDefault(false);
if (verbose)
{
JObject json = header.ToJson();
json["confirmations"] = blockchain.Height - header.Index + 1;
UInt256 hash = blockchain.Store.GetNextBlockHash(header.Hash);
if (hash != null)
{
json["nextblockhash"] = hash.ToString();
}
return(json);
}
return(header.ToArray().ToHexString());
}
case "getblocksysfee":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
uint height = (uint)_params[1].AsNumber();
if (height <= blockchain.Height)
{
return(blockchain.Store.GetSysFeeAmount(height).ToString());
}
throw new RpcException(-100, "Invalid Height");
}
case "getconnectioncount":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
LocalNode localNode = LocalNode.GetLocalNode(chain_hash);
return(localNode != null ? localNode.ConnectedCount : 0);
}
case "getcontractstate":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
UInt160 script_hash = UInt160.Parse(_params[1].AsString());
ContractState contract = blockchain.Store.GetContracts().TryGet(script_hash);
return(contract?.ToJson() ?? throw new RpcException(-100, "Unknown contract"));
}
case "getnewaddress":
if (wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
WalletAccount account = wallet.CreateAccount();
if (wallet is NEP6Wallet nep6)
{
nep6.Save();
}
return(account.Address);
}
case "getpeers":
{
JObject json = new JObject();
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
LocalNode localNode = LocalNode.GetLocalNode(chain_hash);
if (localNode != null)
{
json["unconnected"] = new JArray(localNode.GetUnconnectedPeers().Select(p =>
{
JObject peerJson = new JObject();
peerJson["address"] = p.Address.ToString();
peerJson["port"] = p.Port;
return(peerJson);
}));
json["bad"] = new JArray(); //badpeers has been removed
json["connected"] = new JArray(localNode.GetRemoteNodes().Select(p =>
{
JObject peerJson = new JObject();
peerJson["address"] = p.Remote.Address.ToString();
peerJson["port"] = p.ListenerPort;
return(peerJson);
}));
}
return(json);
}
case "getrawmempool":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
return(new JArray(blockchain.GetMemoryPool().Select(p => (JObject)p.Hash.ToString())));
}
case "getrawtransaction":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
UInt256 hash = UInt256.Parse(_params[1].AsString());
bool verbose = _params.Count >= 3 && _params[2].AsBooleanOrDefault(false);
Transaction tx = blockchain.GetTransaction(hash);
if (tx == null)
{
throw new RpcException(-100, "Unknown transaction");
}
if (verbose)
{
JObject json = tx.ToJson();
uint? height = blockchain.Store.GetTransactions().TryGet(hash)?.BlockIndex;
if (height != null)
{
Header header = blockchain.Store.GetHeader((uint)height);
json["blockhash"] = header.Hash.ToString();
json["confirmations"] = blockchain.Height - header.Index + 1;
json["blocktime"] = header.Timestamp;
}
return(json);
}
return(tx.ToArray().ToHexString());
}
case "getstorage":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
UInt160 script_hash = UInt160.Parse(_params[1].AsString());
byte[] key = _params[1].AsString().HexToBytes();
StorageItem item = blockchain.Store.GetStorages().TryGet(new StorageKey
{
ScriptHash = script_hash,
Key = key
}) ?? new StorageItem();
return(item.Value?.ToHexString());
}
case "gettxout":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
UInt256 hash = UInt256.Parse(_params[1].AsString());
ushort index = (ushort)_params[2].AsNumber();
return(blockchain.Store.GetUnspent(hash, index)?.ToJson(index));
}
case "getvalidators":
{
UInt160 chain_hash = _params[0].AsString().ToScriptHash();
Blockchain blockchain = Blockchain.GetBlockchain(chain_hash);
if (blockchain == null)
{
throw new RpcException(-100, "Unknown blockchain");
}
using (Snapshot snapshot = blockchain.GetSnapshot())
{
var validators = snapshot.GetValidators();
return(snapshot.GetEnrollments().Select(p =>
{
JObject validator = new JObject();
validator["publickey"] = p.PublicKey.ToString();
validator["votes"] = p.Votes.ToString();
validator["active"] = validators.Contains(p.PublicKey);
return validator;
}).ToArray());
}
}
case "getversion":
{
JObject json = new JObject();
json["port"] = LocalNode.Root.ListenerPort;
json["nonce"] = LocalNode.Nonce;
json["useragent"] = LocalNode.UserAgent;
return(json);
}
case "getwalletheight":
if (wallet == null)
{
throw new RpcException(-400, "Access denied.");
}
else
{
return((wallet.WalletHeight > 0) ? wallet.WalletHeight - 1 : 0);
}
case "invoke":
{
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
UInt160 script_hash = UInt160.Parse(_params[1].AsString());
ContractParameter[] parameters = ((JArray)_params[2]).Select(p => ContractParameter.FromJson(p)).ToArray();
byte[] script;
using (ScriptBuilder sb = new ScriptBuilder())
{
script = sb.EmitAppCall(script_hash, parameters).ToArray();
}
return(GetInvokeResult(chain_hash, script));
}
case "invokefunction":
{
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
UInt160 script_hash = UInt160.Parse(_params[1].AsString());
string operation = _params[2].AsString();
ContractParameter[] args = _params.Count >= 4 ? ((JArray)_params[3]).Select(p => ContractParameter.FromJson(p)).ToArray() : new ContractParameter[0];
byte[] script;
using (ScriptBuilder sb = new ScriptBuilder())
{
script = sb.EmitAppCall(script_hash, operation, args).ToArray();
}
return(GetInvokeResult(chain_hash, script));
}
case "invokescript":
{
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
byte[] script = _params[1].AsString().HexToBytes();
return(GetInvokeResult(chain_hash, script));
}
case "listaddress":
if (wallet == null)
{
throw new RpcException(-400, "Access denied.");
}
else
{
return(wallet.GetAccounts().Select(p =>
{
JObject account = new JObject();
account["address"] = p.Address;
account["haskey"] = p.HasKey;
account["label"] = p.Label;
account["watchonly"] = p.WatchOnly;
return account;
}).ToArray());
}
case "sendrawtransaction":
{
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
if (system.GetAppChainSystem(chain_hash, out ZoroSystem targetSystem))
{
Transaction tx = Transaction.DeserializeFrom(_params[1].AsString().HexToBytes());
RelayResultReason reason = targetSystem.Blockchain.Ask <RelayResultReason>(tx).Result;
return(GetRelayResult(reason));
}
return(RelayResultReason.Invalid);
}
case "submitblock":
{
UInt160 chain_hash = UInt160.Parse(_params[0].AsString());
if (system.GetAppChainSystem(chain_hash, out ZoroSystem targetSystem))
{
Block block = _params[0].AsString().HexToBytes().AsSerializable <Block>();
RelayResultReason reason = targetSystem.Blockchain.Ask <RelayResultReason>(block).Result;
return(GetRelayResult(reason));
}
return(RelayResultReason.Invalid);
}
case "validateaddress":
{
JObject json = new JObject();
UInt160 scriptHash;
try
{
scriptHash = _params[0].AsString().ToScriptHash();
}
catch
{
scriptHash = null;
}
json["address"] = _params[0];
json["isvalid"] = scriptHash != null;
return(json);
}
default:
throw new RpcException(-32601, "Method not found");
}
}
