/// <summary>
/// Converts a big end script hash to its equivalent address
/// </summary>
/// <param name="script">
/// String that represents the scripthash to be converted
/// </param>
/// <returns>
/// Returns null when the string does not represent an scripthash;
/// otherwise, returns the string that represents the converted address
/// </returns>
private string ScripthashToAddress(string script)
{
try
{
UInt160 scriptHash;
if (script.StartsWith("0x"))
{
if (!UInt160.TryParse(script, out scriptHash))
{
return(null);
}
}
else
{
if (!UInt160.TryParse(script, out UInt160 littleEndScript))
{
return(null);
}
string bigEndScript = littleEndScript.ToArray().ToHexString();
if (!UInt160.TryParse(bigEndScript, out scriptHash))
{
return(null);
}
}
var hexScript = scriptHash.ToAddress(NeoSystem.Settings.AddressVersion);
return(hexScript);
}
catch
{
return(null);
}
}
private void scListLoad()
{
if (listLoaded)
{
return;
}
if (!File.Exists(smartContractJSON))
{
File.Create(smartContractJSON).Close();
return;
}
listLoaded = true;
UInt160 ignore;
JavaScriptSerializer jsonHelper = new JavaScriptSerializer();
smartContractList = jsonHelper.Deserialize <List <Dictionary <string, string> > >(File.ReadAllText(smartContractJSON));
if (smartContractList == null)
{
smartContractList = new List <Dictionary <string, string> >();
}
foreach (Dictionary <string, string> contract in smartContractList)
{
if (UInt160.TryParse(contract["ContractHash"], out ignore))
{
scListAdd(contract["ContractHash"], false);
}
}
}
public void ParseAddressToUInt160InvalidAddress()
{
var actual = UInt160.TryParse("LhYzeoL7r7CLggtnyFpgF9kSxKuekWMGgx0", out var a);
actual.Should().BeFalse();
a.Should().Be(UInt160.Zero);
}
public void Can_parse_invalid_string_safely()
{
var actual = UInt160.TryParse("0x4520462a8c80056291f871da523bff0eb17e29d4x0", out var a);
actual.Should().BeFalse();
a.Should().Be(UInt160.Zero);
}
/// <summary>
/// Constructor
/// </summary>
public MainService() : base()
{
RegisterCommandHander <string, UInt160>(false, (str) =>
{
switch (str.ToLowerInvariant())
{
case "neo": return(NativeContract.NEO.Hash);
case "gas": return(NativeContract.GAS.Hash);
}
// Try to parse as UInt160
if (UInt160.TryParse(str, out var addr))
{
return(addr);
}
// Accept wallet format
return(str.ToScriptHash());
});
RegisterCommandHander <string, UInt256>(false, (str) => UInt256.Parse(str));
RegisterCommandHander <string[], UInt256[]>((str) => str.Select(u => UInt256.Parse(u.Trim())).ToArray());
RegisterCommandHander <string[], UInt160[]>((arr) => arr.Select(str => StringToAddress(str)).ToArray());
RegisterCommandHander <string, ECPoint>((str) => ECPoint.Parse(str.Trim(), ECCurve.Secp256r1));
RegisterCommandHander <string[], ECPoint[]>((str) => str.Select(u => ECPoint.Parse(u.Trim(), ECCurve.Secp256r1)).ToArray());
RegisterCommandHander <string, JObject>((str) => JObject.Parse(str));
RegisterCommandHander <string, decimal>((str) => decimal.Parse(str, CultureInfo.InvariantCulture));
RegisterCommandHander <JObject, JArray>((obj) => (JArray)obj);
RegisterCommand(this);
}
public void ParseAddressToUInt160NotZero()
{
var actual = UInt160.TryParse("LhYzeoL7r7CLggtnyFpgF9kSxKuekWMGgx0", out var a);
var b = UInt160.Zero;
(a == b).Should().BeTrue();
}
public async Task <Script> BuildInvocationScriptAsync(string contract, string operation, IReadOnlyList <string>?arguments = null)
{
if (string.IsNullOrEmpty(operation))
{
throw new InvalidOperationException($"invalid contract operation \"{operation}\"");
}
var parser = await expressNode.GetContractParameterParserAsync(chainManager.Chain).ConfigureAwait(false);
var scriptHash = parser.TryLoadScriptHash(contract, out var value)
? value
: UInt160.TryParse(contract, out var uint160)
? uint160
: throw new InvalidOperationException($"contract \"{contract}\" not found");
arguments ??= Array.Empty <string>();
var @params = new ContractParameter[arguments.Count];
for (int i = 0; i < arguments.Count; i++)
{
@params[i] = ConvertArg(arguments[i], parser);
}
using var scriptBuilder = new ScriptBuilder();
scriptBuilder.EmitDynamicCall(scriptHash, operation, @params);
return(scriptBuilder.ToArray());
internal static UInt160 AddressToScriptHash(string address)
{
if (UInt160.TryParse(address, out var scriptHash))
{
return(scriptHash);
}
return(address.ToScriptHash());
}
public void Can_TryParse()
{
UInt160 a = new UInt160(0x0807060504030201, 0x100f0e0d0c0b0a09, 0x14131211);
const string @string = "0x14131211100f0e0d0c0b0a090807060504030201";
UInt160.TryParse(@string, out var b).Should().BeTrue();
a.Equals(b).Should().BeTrue();
}
/**
* the value of scripthash has changed - attempt to evaluate and display contract details
*/
private void txtScriptHash_TextChanged(object sender, EventArgs e)
{
ClearScriptDetails();
if (txtScriptHash.Text.Trim().Equals(""))
{
// no scripthash has been provided - clenup just in case previous script values are still showing
return;
}
if (!UInt160.TryParse(txtScriptHash.Text, out UInt160 parsedHash))
{
// invalid script hash, reset script details form and highlight field with red text
txtScriptHash.ForeColor = Color.Red;
return;
}
scriptHash = parsedHash;
txtScriptHash.ForeColor = Color.Empty;
ContractState contract = Blockchain.Default.GetContract(scriptHash);
if (contract == null)
{
return;
}
// valid script hash was found on blockchain
requiredParameters.AddRange(contract.Code.ParameterList.Select(p => new ContractParameter {
Type = p
}));
requiredParameters.Add(new ContractParameter {
Type = ContractParameterType.Array, Value = new List <ContractParameter>()
});
numRequiredParameters = requiredParameters.Count - 1;
// populate contract details to form
txtName.Text = contract.Name;
txtVersion.Text = contract.CodeVersion;
txtAuthor.Text = contract.Author;
if (!contract.Email.Trim().Equals(""))
{
// append email address to author field
txtAuthor.Text += $" ({contract.Email})";
}
txtDescription.Text = contract.Description;
txtParamList.Text = string.Join(", ", contract.Code.ParameterList);
// show any required parameters for this contract
InitParmTreeView();
MainForm.Instance.scList.scListAdd(scriptHash.ToString(), true);
btnClearScript.Enabled = true;
UpdateScript();
}
public void TestTryParse()
{
UInt160 temp = new UInt160();
Assert.AreEqual(false, UInt160.TryParse(null, out temp));
Assert.AreEqual(true, UInt160.TryParse("0x0000000000000000000000000000000000000000", out temp));
Assert.AreEqual(UInt160.Zero, temp);
Assert.AreEqual(false, UInt160.TryParse("000000000000000000000000000000000000000", out temp));
Assert.AreEqual(false, UInt160.TryParse("0xKK00000000000000000000000000000000000000", out temp));
}
public void TestTryParse()
{
Assert.AreEqual(false, UInt160.TryParse(null, out _));
Assert.AreEqual(true, UInt160.TryParse("0x0000000000000000000000000000000000000000", out var temp));
Assert.AreEqual("0x0000000000000000000000000000000000000000", temp.ToString());
Assert.AreEqual(UInt160.Zero, temp);
Assert.AreEqual(true, UInt160.TryParse("0x1230000000000000000000000000000000000000", out temp));
Assert.AreEqual("0x1230000000000000000000000000000000000000", temp.ToString());
Assert.AreEqual(false, UInt160.TryParse("000000000000000000000000000000000000000", out _));
Assert.AreEqual(false, UInt160.TryParse("0xKK00000000000000000000000000000000000000", out _));
}
public void TryParse_0x_matches_NEO()
{
const string @string = "0x30f41a14ca6019038b055b585d002b287b5fdd47";
Neo.UInt160.TryParse(@string, out var neo).Should().BeTrue();
UInt160.TryParse(@string, out var fx).Should().BeTrue();
byte[] buffer = new byte[UInt160.Size];
fx.TryWrite(buffer).Should().BeTrue();
buffer.AsSpan().SequenceEqual(neo.ToArray()).Should().BeTrue();
(fx.ToString() == neo.ToString()).Should().BeTrue();
}
public static UInt160 ParseScriptHash(this ContractParameterParser parser, string hashOrContract)
{
if (UInt160.TryParse(hashOrContract, out var hash))
{
return(hash);
}
if (parser.TryLoadScriptHash(hashOrContract, out var value))
{
return(value);
}
throw new ArgumentException(nameof(hashOrContract));
}
public void SetNEP5WatchScriptHashes(IEnumerable <string> nep5WatchScriptHashesHex)
{
var scriptHashes = new List <UInt160>();
foreach (var scriptHashHex in nep5WatchScriptHashesHex)
{
if (!UInt160.TryParse(scriptHashHex, out var scriptHash))
{
continue;
}
scriptHashes.Add(scriptHash);
}
this.nep5WatchScriptHashes = scriptHashes.ToArray();
}
private void scListLoad()
{
if (File.Exists(Application.StartupPath + "\\smartcontracts.txt"))
{
UInt160 ignore;
String[] smartContracts = File.ReadAllLines(Application.StartupPath + "\\smartcontracts.txt");
foreach (var smartContract in smartContracts)
{
string[] parameters = smartContract.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
if (UInt160.TryParse(parameters[2], out ignore))
{
scListAdd(parameters[0], parameters[1], parameters[2], false);
}
}
}
}
private Script LoadInvocationScript(JToken document)
{
var scriptBuilder = new ScriptBuilder();
switch (document.Type)
{
case JTokenType.Object:
EmitAppCall((JObject)document);
break;
case JTokenType.Array:
{
foreach (var item in document)
{
EmitAppCall((JObject)item);
}
}
break;
default:
throw new FormatException("invalid invocation file");
}
return(scriptBuilder.ToArray());
void EmitAppCall(JObject json)
{
var contract = json.Value <string>("contract")
?? throw new JsonException("missing contract field");
contract = contract.Length > 0 && contract[0] == '#'
? contract[1..] : contract;
var scriptHash = TryLoadScriptHash(contract, out var value)
? value
: UInt160.TryParse(contract, out var uint160)
? uint160
: throw new InvalidOperationException($"contract \"{contract}\" not found");
var operation = json.Value <string>("operation")
?? throw new JsonException("missing operation field");
var args = json.TryGetValue("args", out var jsonArgs)
? ParseParameters(jsonArgs).ToArray()
: Array.Empty <ContractParameter>();
scriptBuilder.EmitDynamicCall(scriptHash, operation, args);
}
public JObject AccountBalance(AccountBalanceRequest request)
{
if (request.AccountIdentifier is null)
{
return(Error.ACCOUNT_IDENTIFIER_INVALID.ToJson());
}
UInt160 account;
try
{
account = request.AccountIdentifier.Address.ToScriptHash();
}
catch (Exception)
{
return(Error.ACCOUNT_ADDRESS_INVALID.ToJson());
}
// can only get current balance
Amount[] balances = GetUtxoBalance(account);
if (balances is null)
{
return(Error.ACCOUNT_NOT_FOUND.ToJson());
}
if (request.AccountIdentifier.SubAccountIdentifier != null) // then need to get the nep5 balance
{
if (!UInt160.TryParse(request.AccountIdentifier.SubAccountIdentifier.Address, out UInt160 scriptHash))
{
return(Error.CONTRACT_ADDRESS_INVALID.ToJson());
}
Amount[] nep5Balances = GetNep5Balance(scriptHash, account);
if (nep5Balances is null)
{
return(Error.VM_FAULT.ToJson());
}
balances = balances.Concat(nep5Balances).ToArray();
}
NeoBlock currentBlock = Blockchain.Singleton.GetBlock(Blockchain.Singleton.CurrentBlockHash);
BlockIdentifier blockIdentifier = new BlockIdentifier(currentBlock.Index, currentBlock.Hash.ToString());
AccountBalanceResponse response = new AccountBalanceResponse(blockIdentifier, balances);
return(response.ToJson());
}
internal static TransactionOutput FromNode(DataNode root)
{
var hex = root.GetString("id");
var assetID = hex.HexToByte();
hex = root.GetString("hash");
UInt160 hash;
if (!UInt160.TryParse(hex, out hash))
{
hash = new UInt160(new byte[20]);
}
var amm = root.GetString("amount", "1");
var amount = BigInteger.Parse(amm);
return(new TransactionOutput(assetID, amount, hash));
}
public IEnumerable <Breakpoint> SetBreakpoints(Source source, IReadOnlyList <SourceBreakpoint> sourceBreakpoints)
{
breakpointCache.Clear();
this.sourceBreakpointMap[source.Path] = sourceBreakpoints;
if (UInt160.TryParse(source.Name, out var scriptHash))
{
var lineMap = disassemblyManager.TryGetDisassembly(scriptHash, out var disassembly)
? disassembly.LineMap : ImmutableDictionary <int, int> .Empty;
foreach (var sbp in sourceBreakpoints)
{
yield return(new Breakpoint()
{
Verified = lineMap.TryGetValue(sbp.Line, out var _) ? true : false,
Column = sbp.Column,
Line = sbp.Line,
Source = source
});
public void updateStatus()
{
foreach (ListViewItem Item in listView1.Items)
{
if (!UInt160.TryParse(Item.Name, out ignore))
{
continue;
}
script_hash = UInt160.Parse(Item.Name);
ContractState contract = Blockchain.Default.GetContract(script_hash);
if (contract != null)
{
Item.SubItems[2].Text = contract.Name;
Item.SubItems[2].Font = SystemFonts.DefaultFont;
Item.SubItems[4].Text = "Found! ツ";
Item.SubItems[4].ForeColor = Color.Green;
}
}
}
/// <summary>
/// Converts an Base64 byte array to address
/// </summary>
/// <param name="bytearray">
/// String that represents the Base64 value
/// </param>
/// <returns>
/// Returns null when the string does not represent an Base64 value or when
/// it is not possible to parse the Base64 value to address; otherwise,
/// returns the string that represents the converted address
/// </returns>
private string Base64ToAddress(string bytearray)
{
try
{
byte[] result = Convert.FromBase64String(bytearray).Reverse().ToArray();
string hex = result.ToHexString();
if (!UInt160.TryParse(hex, out var scripthash))
{
return(null);
}
string address = scripthash.ToAddress(NeoSystem.Settings.AddressVersion);
return(address);
}
catch
{
return(null);
}
}
internal static UInt160 StringToAddress(string input)
{
switch (input.ToLowerInvariant())
{
case "neo": return(NativeContract.NEO.Hash);
case "gas": return(NativeContract.GAS.Hash);
}
// Try to parse as UInt160
if (UInt160.TryParse(input, out var addr))
{
return(addr);
}
// Accept wallet format
return(input.ToScriptHash());
}
object ParseAutoObject(CommandToken token)
{
if (!token.Quoted)
{
if (token.Value.StartsWith("0x"))
{
return(token.Value.HexToBytes());
}
else
{
// Number?
if (BigInteger.TryParse(token.Value, out BigInteger bi))
{
return(bi);
}
// Decimal?
if (BigDecimal.TryParse(token.Value, 20, out BigDecimal bd))
{
return(bd);
}
// Hashes
if (UInt160.TryParse(token.Value, out UInt160 hash160))
{
return(hash160);
}
if (UInt256.TryParse(token.Value, out UInt256 hash256))
{
return(hash256);
}
}
}
return(token.Value);
}
async Task BalanceOfNativeNEP5(string nativeNEP5Hash, UInt160 address, string[] chainHashList)
{
if (!UInt160.TryParse(nativeNEP5Hash, out UInt160 nativeNEP5AssetId))
{
return;
}
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitSysCall("Zoro.NativeNEP5.Call", "BalanceOf", nativeNEP5AssetId, address);
sb.EmitSysCall("Zoro.NativeNEP5.Call", "Decimals", nativeNEP5AssetId);
foreach (var chainHash in chainHashList)
{
var info = await ZoroHelper.InvokeScript(sb.ToArray(), chainHash);
var value = GetBalanceFromJson(info);
string chainName = chainHash.Length > 0 ? chainHash : "Root";
Console.WriteLine($"BalanceOf NativeNEP5:{value}, chain:{chainName}");
}
}
}
/// <summary>
/// Here we don't know the type that we should return, and we need to create the best one
/// </summary>
/// <param name="token">Token</param>
/// <returns>Return object</returns>
static object ParseObjectFromToken(CommandToken token)
{
if (!token.Quoted)
{
if (token.Value.StartsWith("0x"))
{
return(token.Value.HexToBytes());
}
// Number?
if (BigInteger.TryParse(token.Value, out var bi))
{
return(bi);
}
// Decimal?
if (BigDecimal.TryParse(token.Value, 20, out var bd))
{
return(bd);
}
// Hashes
if (UInt160.TryParse(token.Value, out var hash160))
{
return(hash160);
}
if (UInt256.TryParse(token.Value, out var hash256))
{
return(hash256);
}
}
return(token.Value);
}
public void updateStatus()
{
foreach (ListViewItem Item in listViewSmartContracts.Items)
{
if (!UInt160.TryParse(Item.Name, out ignore))
{
continue;
}
script_hash = UInt160.Parse(Item.Name);
ContractState contract = Blockchain.Default.GetContract(script_hash);
if (contract != null && Item.SubItems[0].Text != contract.Name)
{
Item.SubItems[0].Text = contract.Name;
Item.SubItems[0].Font = SystemFonts.DefaultFont;
Item.SubItems[1].Text = contract.CodeVersion;
Item.SubItems[2].Text = contract.Author;
Item.SubItems[3].Text = contract.HasStorage.ToString();
Item.SubItems[4].Text = "Found! ツ";
Item.SubItems[4].Tag = contract.Description;
Item.SubItems[4].ForeColor = Color.Green;
}
}
}
public void updateStatus()
{
foreach (ListViewItem Item in listView1.Items)
{
if (!UInt160.TryParse(Item.Name, out ignore))
{
continue;
}
script_hash = UInt160.Parse(Item.Name);
ContractState contract = Blockchain.Default.GetContract(script_hash);
if (contract != null)
{
if (Item.SubItems[2].Text != contract.Name)
{
// don't attempt to redraw unless something has changed (in this case name goes from pending -> contract name)
Item.SubItems[2].Text = contract.Name;
Item.SubItems[2].Font = SystemFonts.DefaultFont;
Item.SubItems[4].Text = "Found! ツ";
Item.SubItems[4].ForeColor = Color.Green;
}
}
}
}
public JObject?ExpressGetContractState(JArray @params)
{
using var snapshot = neoSystem.GetSnapshot();
if (@params[0] is JNumber number)
{
var id = (int)number.AsNumber();
foreach (var native in NativeContract.Contracts)
{
if (id == native.Id)
{
var contract = NativeContract.ContractManagement.GetContract(snapshot, native.Hash);
return(contract?.ToJson() ?? throw new RpcException(-100, "Unknown contract"));
}
}
}
var param = @params[0].AsString();
if (UInt160.TryParse(param, out var scriptHash))
{
var contract = NativeContract.ContractManagement.GetContract(snapshot, scriptHash);
return(contract?.ToJson() ?? throw new RpcException(-100, "Unknown contract"));
}
var contracts = new JArray();
foreach (var contract in NativeContract.ContractManagement.ListContracts(snapshot))
{
if (param.Equals(contract.Manifest.Name, StringComparison.OrdinalIgnoreCase))
{
contracts.Add(contract.ToJson());
}
}
return(contracts);
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
button1.Enabled = UInt160.TryParse(textBox1.Text, out _);
}