public static bool Transfer(UInt160 from, UInt160 to, BigInteger amount, object data = null)
{
Assert(from.Length == 20, "The from address is invalid.");
Assert(to.Length == 20, "The to address is invalid.");
Assert(amount > 0, "The parameter amount must be greater than 0.");
Assert(Runtime.CheckWitness(from) || from.Equals(Runtime.CallingScriptHash), "No authorization.");
Assert(BalanceOf(from) >= amount, "Insufficient balance.");
if (from == to)
{
return(true);
}
AssetReduce(from, amount);
AssetIncrease(to, amount);
OnTransfer(from, to, amount);
// Validate payable
if (ContractManagement.GetContract(to) != null)
{
Contract.Call(to, "onNEP17Payment", CallFlags.All, from, amount, data);
}
return(true);
}
public static bool Transfer(UInt160 from, UInt160 to, BigInteger amount, object data)
{
Assert(from.IsValid && to.IsValid, "Invalid From or To Address");
Assert(amount > 0, "The parameter amount MUST be greater than 0.");
Assert(Runtime.CheckWitness(from), "No authorization.");
var me = Runtime.ExecutingScriptHash;
if (to == me)
{
Assert(CheckIsRouter(Runtime.CallingScriptHash), "Not Allowed To Transfer");
}
Assert(AssetStorage.Get(from) >= amount, "Insufficient balance.");
if (from == to)
{
return(true);
}
AssetStorage.Reduce(from, amount);
AssetStorage.Increase(to, amount);
onTransfer(from, to, amount);
// Validate payable
if (ContractManagement.GetContract(to) != null)
{
Contract.Call(to, "onNEP17Payment", CallFlags.All, new object[] { from, amount, data });
}
return(true);
}
public static bool Transfer(UInt160 from, UInt160 to, BigInteger amount, object data)
{
if (amount <= 0)
{
throw new Exception("The parameter amount MUST be greater than 0.");
}
if (!Runtime.CheckWitness(from) && !from.Equals(ExecutionEngine.CallingScriptHash))
{
throw new Exception("No authorization.");
}
if (AssetStorage.Get(from) < amount)
{
throw new Exception("Insufficient balance.");
}
if (from == to)
{
return(true);
}
AssetStorage.Reduce(from, amount);
AssetStorage.Increase(to, amount);
OnTransfer(from, to, amount);
// Validate payable
if (ContractManagement.GetContract(to) != null)
{
Contract.Call(to, "onNEP17Payment", CallFlags.All, new object[] { from, amount, data });
}
return(true);
}
private static void PostTransfer(UInt160 from, UInt160 to, ByteString tokenId, object data)
{
OnTransfer(from, to, 1, tokenId);
if (to is not null && ContractManagement.GetContract(to) is not null)
{
Contract.Call(to, "onNEP11Payment", CallFlags.All, from, 1, tokenId, data);
}
}
protected static void PostTransfer(UInt160 from, UInt160 to, BigInteger amount, object data)
{
OnTransfer(from, to, amount);
if (to is not null && ContractManagement.GetContract(to) is not null)
{
Contract.Call(to, "onNEP17Payment", CallFlags.All, from, amount, data);
}
}
public static bool Transfer(UInt160 from, UInt160 to, BigInteger amount, object data = null)
{
if (IsPaused())
{
Error("System is paused.");
return(false);
}
if (IsBlacklisted(from))
{
Error("Argument from is in blacklist.");
return(false);
}
if (IsBlacklisted(to))
{
Error("Argument to is in blacklist.");
return(false);
}
if (amount <= 0)
{
Error("The parameter amount MUST be greater than 0.");
return(false);
}
if (!Runtime.CheckWitness(from))
{
Error("No authorization.");
return(false);
}
if (AssetStorage.Get(from) < amount)
{
Error("Insufficient balance.");
return(false);
}
if (from == to)
{
return(true);
}
AssetStorage.Reduce(from, amount);
AssetStorage.Increase(to, amount);
Transferred(from, to, amount);
if (ContractManagement.GetContract(to) != null)
{
Contract.Call(to, "onPayment", CallFlags.ReadOnly, new object[] { from, amount, data });
}
return(true);
}
public static object ManagementTest(UInt160 hash)
{
OnNotify(ContractManagement.Hash);
OnNotify(ContractManagement.Name);
OnNotify(ContractManagement.GetContract(hash).Hash);
OnNotify(ContractManagement.GetContract(hash).Id);
OnNotify(ContractManagement.GetContract(hash).Nef);
OnNotify(ContractManagement.GetContract(hash).UpdateCounter);
return(ContractManagement.GetContract(hash).Manifest);
}
public static bool Migrate(UInt160 script, string manifest)
{
if (!IsPaused())
{
Error("System is not paused.");
return(false);
}
if (!IsAdmin())
{
Error("No authorization.");
return(false);
}
if (script != null && script.Equals(ContractManagement.GetContract(Runtime.ExecutingScriptHash)))
{
return(true);
}
ContractManagement.Update(script, manifest);
return(true);
}
/// <summary>
/// 增加nep17资产的exchange合约映射
/// </summary>
/// <param name="exchangeContractHash"></param>
/// <returns></returns>
public static bool RegisterExchangePair(UInt160 exchangeContractHash)
{
Assert(Runtime.CheckWitness(GetAdmin()), "Forbidden");
var contract = ContractManagement.GetContract(exchangeContractHash);
Assert(contract != null, "Not Deployed");
var token0 = (UInt160)Contract.Call(exchangeContractHash, "getToken0", CallFlags.ReadOnly, new object[0]);
var token1 = (UInt160)Contract.Call(exchangeContractHash, "getToken1", CallFlags.ReadOnly, new object[0]);
Assert(token0 != null && token1 != null, "Token Invalid");
var key = GetPairKey(token0, token1);
//var value = StorageGet(key);
//if (value != null)
//{
// onRemoveExchange(token0, token1);
//}
StoragePut(key, exchangeContractHash);
onCreateExchange(token0, token1, exchangeContractHash);
return(true);
}
private static bool IsDeployed(UInt160 address) => ContractManagement.GetContract(address) != null;
public static object GetContract(UInt160 hash, string whatReturn)
{
var contract = ContractManagement.GetContract(hash);
return(GetContractInfo(contract, whatReturn));
}
public static string NewContract()
{
return(ContractManagement.GetContract(Runtime.ExecutingScriptHash).Manifest.Name);
}
public static string OldContract(byte[] nefFile, string manifest)
{
ContractManagement.Update((ByteString)nefFile, manifest, null);
return ContractManagement.GetContract(Runtime.ExecutingScriptHash).Manifest.Name;
}