private bool WalletLocked()
{
if (WalletLocker.Locked())
{
Console.WriteLine("You have to unlock the wallet first.");
return(true);
}
return(false);
}
private JObject Process(string method, JArray _params)
{
switch (method)
{
case "claimgas":
if (wallet == null || WalletLocker.Locked())
{
throw new RpcException(-400, "Access denied.");
}
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
if (snapshot.CalculateBonus(wallet.GetUnclaimedCoins().Select(p => p.Reference)) == Fixed8.Zero)
{
throw new RpcException(-100, "No gas to claim");
}
CoinReference[] claims = wallet.GetUnclaimedCoins().Select(p => p.Reference).ToArray();
if (claims.Length == 0)
{
throw new RpcException(-100, "No gas to claim");
}
ClaimTransaction tx = new ClaimTransaction
{
Claims = claims.Take(MAX_CLAIMS_AMOUNT).ToArray(),
Attributes = new TransactionAttribute[0],
Inputs = new CoinReference[0],
Outputs = new[]
{
new TransactionOutput
{
AssetId = Blockchain.UtilityToken.Hash,
Value = snapshot.CalculateBonus(claims.Take(MAX_CLAIMS_AMOUNT)),
ScriptHash = _params.Count > 0 ? _params[0].AsString().ToScriptHash() : wallet.GetChangeAddress()
}
}
};
ContractParametersContext context;
try
{
context = new ContractParametersContext(tx);
}
catch (InvalidOperationException)
{
throw new RpcException(-400, "Access denied");
}
wallet.Sign(context);
if (context.Completed)
{
tx.Witnesses = context.GetWitnesses();
wallet.ApplyTransaction(tx);
system.LocalNode.Tell(new LocalNode.Relay {
Inventory = tx
});
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "dumpprivkey":
if (wallet == null || WalletLocker.Locked())
{
throw new RpcException(-400, "Access denied.");
}
else
{
UInt160 scriptHash = _params[0].AsString().ToScriptHash();
WalletAccount account = Wallet.GetAccount(scriptHash);
return(account.GetKey().Export());
}
case "getaccountstate":
{
UInt160 script_hash = _params[0].AsString().ToScriptHash();
AccountState account = Blockchain.Singleton.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.Singleton.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":
return(Blockchain.Singleton.CurrentBlockHash.ToString());
case "getblock":
{
Block block;
if (_params[0] is JNumber)
{
uint index = (uint)_params[0].AsNumber();
block = Blockchain.Singleton.Store.GetBlock(index);
}
else
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
block = Blockchain.Singleton.Store.GetBlock(hash);
}
if (block == null)
{
throw new RpcException(-100, "Unknown block");
}
bool verbose = _params.Count >= 2 && _params[1].AsBoolean();
if (verbose)
{
JObject json = block.ToJson();
json["confirmations"] = Blockchain.Singleton.Height - block.Index + 1;
UInt256 hash = Blockchain.Singleton.Store.GetNextBlockHash(block.Hash);
if (hash != null)
{
json["nextblockhash"] = hash.ToString();
}
return(json);
}
return(block.ToArray().ToHexString());
}
case "getblockcount":
return(Blockchain.Singleton.Height + 1);
case "getblockhash":
{
uint height = (uint)_params[0].AsNumber();
if (height <= Blockchain.Singleton.Height)
{
return(Blockchain.Singleton.GetBlockHash(height).ToString());
}
throw new RpcException(-100, "Invalid Height");
}
case "getblockheader":
{
Header header;
if (_params[0] is JNumber)
{
uint height = (uint)_params[0].AsNumber();
header = Blockchain.Singleton.Store.GetHeader(height);
}
else
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
header = Blockchain.Singleton.Store.GetHeader(hash);
}
if (header == null)
{
throw new RpcException(-100, "Unknown block");
}
bool verbose = _params.Count >= 2 && _params[1].AsBoolean();
if (verbose)
{
JObject json = header.ToJson();
json["confirmations"] = Blockchain.Singleton.Height - header.Index + 1;
UInt256 hash = Blockchain.Singleton.Store.GetNextBlockHash(header.Hash);
if (hash != null)
{
json["nextblockhash"] = hash.ToString();
}
return(json);
}
return(header.ToArray().ToHexString());
}
case "getblocksysfee":
{
uint height = (uint)_params[0].AsNumber();
if (height <= Blockchain.Singleton.Height)
{
return(Blockchain.Singleton.Store.GetSysFeeAmount(height).ToString());
}
throw new RpcException(-100, "Invalid Height");
}
case "getconnectioncount":
return(LocalNode.Singleton.ConnectedCount);
case "getcontractstate":
{
UInt160 script_hash = UInt160.Parse(_params[0].AsString());
ContractState contract = Blockchain.Singleton.Store.GetContracts().TryGet(script_hash);
return(contract?.ToJson() ?? throw new RpcException(-100, "Unknown contract"));
}
case "getnewaddress":
if (wallet == null || WalletLocker.Locked())
{
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();
json["unconnected"] = new JArray(LocalNode.Singleton.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.Singleton.GetRemoteNodes().Select(p =>
{
JObject peerJson = new JObject();
peerJson["address"] = p.Remote.Address.ToString();
peerJson["port"] = p.ListenerPort;
return(peerJson);
}));
return(json);
}
case "getrawmempool":
{
bool shouldGetUnverified = _params.Count >= 1 && _params[0].AsBoolean();
if (!shouldGetUnverified)
{
return(new JArray(Blockchain.Singleton.MemPool.GetVerifiedTransactions().Select(p => (JObject)p.Hash.ToString())));
}
JObject json = new JObject();
json["height"] = Blockchain.Singleton.Height;
Blockchain.Singleton.MemPool.GetVerifiedAndUnverifiedTransactions(
out IEnumerable <Transaction> verifiedTransactions,
out IEnumerable <Transaction> unverifiedTransactions);
json["verified"] = new JArray(verifiedTransactions.Select(p => (JObject)p.Hash.ToString()));
json["unverified"] = new JArray(unverifiedTransactions.Select(p => (JObject)p.Hash.ToString()));
return(json);
}
case "getrawtransaction":
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
bool verbose = _params.Count >= 2 && _params[1].AsBoolean();
Transaction tx = Blockchain.Singleton.GetTransaction(hash);
if (tx == null)
{
throw new RpcException(-100, "Unknown transaction");
}
if (verbose)
{
JObject json = tx.ToJson();
uint? height = Blockchain.Singleton.Store.GetTransactions().TryGet(hash)?.BlockIndex;
if (height != null)
{
Header header = Blockchain.Singleton.Store.GetHeader((uint)height);
json["blockhash"] = header.Hash.ToString();
json["confirmations"] = Blockchain.Singleton.Height - header.Index + 1;
json["blocktime"] = header.Timestamp;
}
return(json);
}
return(tx.ToArray().ToHexString());
}
case "getstorage":
{
UInt160 script_hash = UInt160.Parse(_params[0].AsString());
byte[] key = _params[1].AsString().HexToBytes();
StorageItem item = Blockchain.Singleton.Store.GetStorages().TryGet(new StorageKey
{
ScriptHash = script_hash,
Key = key
}) ?? new StorageItem();
return(item.Value?.ToHexString());
}
case "gettransactionheight":
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
uint? height = Blockchain.Singleton.Store.GetTransactions().TryGet(hash)?.BlockIndex;
if (height.HasValue)
{
return(height.Value);
}
throw new RpcException(-100, "Unknown transaction");
}
case "gettxout":
{
UInt256 hash = UInt256.Parse(_params[0].AsString());
ushort index = (ushort)_params[1].AsNumber();
return(Blockchain.Singleton.Store.GetUnspent(hash, index)?.ToJson(index));
}
case "getvalidators":
using (Snapshot snapshot = Blockchain.Singleton.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.Singleton.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 script_hash = UInt160.Parse(_params[0].AsString());
ContractParameter[] parameters = ((JArray)_params[1]).Select(p => ContractParameter.FromJson(p)).ToArray();
byte[] script;
using (ScriptBuilder sb = new ScriptBuilder())
{
script = sb.EmitAppCall(script_hash, parameters).ToArray();
}
return(GetInvokeResult(script));
}
case "invokefunction":
{
UInt160 script_hash = UInt160.Parse(_params[0].AsString());
string operation = _params[1].AsString();
ContractParameter[] args = _params.Count >= 3 ? ((JArray)_params[2]).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(script));
}
case "invokescript":
{
byte[] script = _params[0].AsString().HexToBytes();
return(GetInvokeResult(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 "lockwallet":
if (wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
WalletLocker.Lock();
return(true);
}
case "sendfrom":
if (wallet == null || WalletLocker.Locked())
{
throw new RpcException(-400, "Access denied.");
}
else
{
UIntBase assetId = UIntBase.Parse(_params[0].AsString());
AssetDescriptor descriptor = new AssetDescriptor(assetId);
UInt160 from = _params[1].AsString().ToScriptHash();
UInt160 to = _params[2].AsString().ToScriptHash();
BigDecimal value = BigDecimal.Parse(_params[3].AsString(), descriptor.Decimals);
if (value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
Fixed8 fee = _params.Count >= 5 ? Fixed8.Parse(_params[4].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 6 ? _params[5].AsString().ToScriptHash() : null;
Transaction tx = Wallet.MakeTransaction(null, new[]
{
new TransferOutput
{
AssetId = assetId,
Value = value,
ScriptHash = to
}
}, from: from, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Wallet.Sign(context);
if (context.Completed)
{
tx.Witnesses = context.GetWitnesses();
Wallet.ApplyTransaction(tx);
system.LocalNode.Tell(new LocalNode.Relay {
Inventory = tx
});
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "sendmany":
if (wallet == null || WalletLocker.Locked())
{
throw new RpcException(-400, "Access denied.");
}
else
{
JArray to = (JArray)_params[0];
if (to.Count == 0)
{
throw new RpcException(-32602, "Invalid params");
}
TransferOutput[] outputs = new TransferOutput[to.Count];
for (int i = 0; i < to.Count; i++)
{
UIntBase asset_id = UIntBase.Parse(to[i]["asset"].AsString());
AssetDescriptor descriptor = new AssetDescriptor(asset_id);
outputs[i] = new TransferOutput
{
AssetId = asset_id,
Value = BigDecimal.Parse(to[i]["value"].AsString(), descriptor.Decimals),
ScriptHash = to[i]["address"].AsString().ToScriptHash()
};
if (outputs[i].Value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
}
Fixed8 fee = _params.Count >= 2 ? Fixed8.Parse(_params[1].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 3 ? _params[2].AsString().ToScriptHash() : null;
Transaction tx = Wallet.MakeTransaction(null, outputs, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Wallet.Sign(context);
if (context.Completed)
{
tx.Witnesses = context.GetWitnesses();
Wallet.ApplyTransaction(tx);
system.LocalNode.Tell(new LocalNode.Relay {
Inventory = tx
});
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "sendrawtransaction":
{
Transaction tx = Transaction.DeserializeFrom(_params[0].AsString().HexToBytes());
RelayResultReason reason = system.Blockchain.Ask <RelayResultReason>(tx).Result;
return(GetRelayResult(reason));
}
case "sendtoaddress":
if (wallet == null || WalletLocker.Locked())
{
throw new RpcException(-400, "Access denied.");
}
else
{
UIntBase assetId = UIntBase.Parse(_params[0].AsString());
AssetDescriptor descriptor = new AssetDescriptor(assetId);
UInt160 scriptHash = _params[1].AsString().ToScriptHash();
BigDecimal value = BigDecimal.Parse(_params[2].AsString(), descriptor.Decimals);
if (value.Sign <= 0)
{
throw new RpcException(-32602, "Invalid params");
}
Fixed8 fee = _params.Count >= 4 ? Fixed8.Parse(_params[3].AsString()) : Fixed8.Zero;
if (fee < Fixed8.Zero)
{
throw new RpcException(-32602, "Invalid params");
}
UInt160 change_address = _params.Count >= 5 ? _params[4].AsString().ToScriptHash() : null;
Transaction tx = Wallet.MakeTransaction(null, new[]
{
new TransferOutput
{
AssetId = assetId,
Value = value,
ScriptHash = scriptHash
}
}, change_address: change_address, fee: fee);
if (tx == null)
{
throw new RpcException(-300, "Insufficient funds");
}
ContractParametersContext context = new ContractParametersContext(tx);
Wallet.Sign(context);
if (context.Completed)
{
tx.Witnesses = context.GetWitnesses();
Wallet.ApplyTransaction(tx);
system.LocalNode.Tell(new LocalNode.Relay {
Inventory = tx
});
return(tx.ToJson());
}
else
{
return(context.ToJson());
}
}
case "showgas":
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
{
uint height = snapshot.Height + 1;
Fixed8 unavailable;
try
{
unavailable = snapshot.CalculateBonus(wallet.FindUnspentCoins().Where(p => p.Output.AssetId.Equals(Blockchain.GoverningToken.Hash)).Select(p => p.Reference), height);
}
catch (Exception)
{
unavailable = Fixed8.Zero;
}
return(new JObject
{
["available"] = snapshot.CalculateBonus(wallet.GetUnclaimedCoins().Select(p => p.Reference)).ToString(),
["unavailable"] = unavailable.ToString()
});
}
case "submitblock":
{
Block block = _params[0].AsString().HexToBytes().AsSerializable <Block>();
RelayResultReason reason = system.Blockchain.Ask <RelayResultReason>(block).Result;
return(GetRelayResult(reason));
}
case "unlockwallet":
if (wallet == null)
{
throw new RpcException(-400, "Access denied");
}
else
{
try
{
if (_params.Count > 1)
{
WalletLocker.Unlock(wallet, _params[0].AsString(), uint.Parse(_params[1].AsString()));
}
else
{
WalletLocker.Unlock(wallet, _params[0].AsString(), DEFAULT_UNLOCK_TIME);
}
}
catch (FormatException)
{
throw new RpcException(-32602, "Invalid params");
}
return(true);
}
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");
}
}