public VirtualChain(NeoAPI api, KeyPair owner)
{
this.Time = DateTime.UtcNow.ToTimestamp();
var scripthash = new UInt160(owner.signatureHash.ToArray());
var txs = new List <Transaction>();
foreach (var entry in NeoAPI.Assets)
{
var symbol = entry.Key;
var assetID = NeoAPI.GetAssetID(symbol);
_assetMap[assetID] = new Asset()
{
hash = new UInt256(assetID), name = symbol
};
var tx = new Transaction();
tx.outputs = new Transaction.Output[] { new Transaction.Output()
{
assetID = assetID, scriptHash = scripthash, value = 1000000000
} };
tx.inputs = new Transaction.Input[] { };
txs.Add(tx);
}
GenerateBlock(txs);
}
public static Transaction MintTokens(NEP5 token, KeyPair buyer_key, string symbol, decimal amount)
{
var attachs = new List <Transaction.Output>();
attachs.Add(new Transaction.Output()
{
assetID = NeoAPI.GetAssetID(symbol), scriptHash = token.scriptHash, value = amount
});
var response = token.api.CallContract(buyer_key, token.scriptHash, "mintTokens", new object[] { }, symbol, attachs);
return(response);
}
public Transaction ClaimGas(KeyPair ownerKey)
{
var targetScriptHash = new UInt160(ownerKey.address.AddressToScriptHash());
decimal amount;
var claimable = GetClaimable(targetScriptHash, out amount);
var references = new List <Transaction.Input>();
foreach (var entry in claimable)
{
references.Add(new Transaction.Input()
{
prevHash = entry.hash, prevIndex = entry.index
});
}
if (amount <= 0)
{
throw new ArgumentException("No GAS to claim at this address");
}
List <Transaction.Input> inputs;
List <Transaction.Output> outputs;
GenerateInputsOutputs(ownerKey, "GAS", null, out inputs, out outputs);
outputs.Add(
new Transaction.Output()
{
scriptHash = targetScriptHash,
assetID = NeoAPI.GetAssetID("GAS"),
value = amount
});
Transaction tx = new Transaction()
{
type = TransactionType.ClaimTransaction,
version = 0,
script = null,
gas = -1,
claimReferences = references.ToArray(),
inputs = inputs.ToArray(),
outputs = outputs.ToArray(),
};
tx.Sign(ownerKey);
var ok = SendTransaction(tx);
return(ok ? tx : null);
}
protected override void Reset()
{
base.Reset();
foreach (var entry in NeoAPI.Assets)
{
var symbol = entry.Key;
var assetID = NeoAPI.GetAssetID(symbol);
_assetMap[assetID] = new Asset()
{
hash = new UInt256(assetID), name = symbol
};
}
}
// claim from contract, without having private key
public Transaction ClaimGas(KeyPair ownerKey, UInt160 fromScripthash, byte[] verificationScript)
{
var check = verificationScript.ToScriptHash();
if (check != fromScripthash)
{
throw new ArgumentException("Invalid verification script");
}
decimal amount;
var claimable = GetClaimable(fromScripthash, out amount);
var references = new List <Transaction.Input>();
foreach (var entry in claimable)
{
references.Add(new Transaction.Input()
{
prevHash = entry.hash, prevIndex = entry.index
});
}
if (amount <= 0)
{
throw new ArgumentException("No GAS to claim at this address");
}
List <Transaction.Input> inputs;
List <Transaction.Output> outputs;
GenerateInputsOutputs(ownerKey, "GAS", null, out inputs, out outputs);
outputs.Add(
new Transaction.Output()
{
scriptHash = fromScripthash,
assetID = NeoAPI.GetAssetID("GAS"),
value = amount
});
Transaction tx = new Transaction()
{
type = TransactionType.ClaimTransaction,
version = 0,
script = null,
gas = -1,
claimReferences = references.ToArray(),
inputs = inputs.ToArray(),
outputs = outputs.ToArray(),
};
var witness = new Witness {
invocationScript = ("0014" + ownerKey.address.AddressToScriptHash().ByteToHex()).HexToBytes(), verificationScript = verificationScript
};
tx.Sign(ownerKey, new Witness[] { witness });
var ok = SendTransaction(tx);
return(ok ? tx : null);
}
