//SGAS MintTokens
public static void MintTokens()
{
var inputs = new List <CoinReference> {
//coin reference A
new CoinReference()
{
PrevHash = new UInt256("0xf5088ce508d86197c991ff0ef7651ddf01f3e555f257039c972082250e899210".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0 //16639 GAS
}
}.ToArray();
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is GAS
ScriptHash = SgasAddress, //SGAS 地址
Value = new Fixed8((long)(1 * (long)Math.Pow(10, 8))) //Value
}
}.ToArray();
Transaction tx = null;
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitAppCall(ScriptHash, "mintTokens");
sb.Emit(OpCode.THROWIFNOT);
byte[] nonce = new byte[8];
Random rand = new Random();
rand.NextBytes(nonce);
sb.Emit(OpCode.RET, nonce);
tx = new InvocationTransaction
{
Version = 1,
Script = sb.ToArray(),
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Scripts = new Witness[0]
};
}
if (tx == null)
{
Console.WriteLine("Create Transaction Failed");
Console.ReadLine();
return;
}
//Open wallet
var wallet = new Neo.Implementations.Wallets.NEP6.NEP6Wallet("0.json");
try
{
wallet.Unlock("1");
}
catch (Exception)
{
Console.WriteLine("password error");
}
//Sign in wallet
var context = new ContractParametersContext(tx);
wallet.Sign(context);
if (context.Completed)
{
Console.WriteLine("Sign Successful");
tx.Scripts = context.GetScripts();
}
else
{
Console.WriteLine("Sign Faild");
}
try
{
tx = Transaction.DeserializeFrom(tx.ToArray());
}
catch (Exception)
{
Console.WriteLine("Invalid Transaction Format");
}
Console.WriteLine("Verify Transaction:" + tx.Verify(new List <Transaction> {
tx
}));
Console.WriteLine("Raw Transaction:");
Console.WriteLine(tx.ToArray().ToHexString());
//Then Call neo-cli API：sendrawtransaction in postman.
}
public static void Verify()
{
var inputs = new List <CoinReference> {
new CoinReference()
{
PrevHash = new UInt256("0xdb4c4f1a17b365a68497ef0e118db89b827db24f67ee71d317d38c68c84424ef".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0 //1
}
}.ToArray();
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is GAS
ScriptHash = SgasAddress, //SGAS 地址
Value = new Fixed8((long)(1 * (long)Math.Pow(10, 8))) //Value
}
}.ToArray();
Transaction tx = null;
var verificationScript = new byte[0];
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitPush(2);
sb.EmitPush("1");
verificationScript = sb.ToArray();
}
var witness = new Witness
{
InvocationScript = verificationScript,
//未部署的合约不能执行 Storage.Get() 方法，所以要将合约部署，而不是调用本地的 AVM 文件
//VerificationScript = File.ReadAllBytes("C:\\Users\\chenz\\Documents\\1Code\\chenzhitong\\NeoContract5\\NeoContract\\bin\\Debug\\SGAS.avm")
VerificationScript = Blockchain.Default.GetContract(ScriptHash).Script
};
tx = new InvocationTransaction
{
Version = 0,
Script = new byte[0],
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[0],
Scripts = new Witness[] { witness }
};
if (tx == null)
{
Console.WriteLine("Create Transaction Failed");
Console.ReadLine();
return;
}
try
{
tx = Transaction.DeserializeFrom(tx.ToArray());
}
catch (Exception)
{
Console.WriteLine("Invalid Transaction Format");
}
if (tx.Verify(new List <Transaction> {
tx
}))
{
Console.WriteLine("Verify Transaction: True");
Console.WriteLine("Raw Transaction:");
Console.WriteLine(tx.ToArray().ToHexString());
//Console.WriteLine(tx.ToJson());
//Then Call neo-cli API：sendrawtransaction in postman.
}
else
{
Console.WriteLine("Verify Transaction: False");
}
}
public static void Refund()
{
var inputs = new List <CoinReference> {
new CoinReference()
{
PrevHash = new UInt256("0xdb4c4f1a17b365a68497ef0e118db89b827db24f67ee71d317d38c68c84424ef".Remove(0, 2).HexToBytes().Reverse().ToArray()),
PrevIndex = 0 //1
}
}.ToArray();
var outputs = new List <TransactionOutput> {
new TransactionOutput()
{
AssetId = Blockchain.UtilityToken.Hash, //Asset Id, this is GAS
ScriptHash = SgasAddress, //SGAS 地址
Value = new Fixed8((long)(1 * (long)Math.Pow(10, 8))) //Value
}
}.ToArray();
Transaction tx = null;
var applicationScript = new byte[0];
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitAppCall(ScriptHash, "refund", User);
sb.Emit(OpCode.THROWIFNOT);
applicationScript = sb.ToArray();
}
tx = new InvocationTransaction
{
Version = 0,
Script = applicationScript,
Outputs = outputs,
Inputs = inputs,
Attributes = new TransactionAttribute[]
{
new TransactionAttribute
{
Usage = TransactionAttributeUsage.Script,
Data = User.ToArray()//附加人的 Script Hash
}
}
};
if (tx == null)
{
Console.WriteLine("Create Transaction Failed");
Console.ReadLine();
return;
}
//Open wallet
var wallet = new Neo.Implementations.Wallets.NEP6.NEP6Wallet("0.json");
try
{
wallet.Unlock("1");
}
catch (Exception)
{
Console.WriteLine("password error");
}
//Sign in wallet 生成附加人的签名
var context = new ContractParametersContext(tx);
var additionalSignature = new byte[0];
foreach (UInt160 hash in context.ScriptHashes)
{
if (hash == User)
{
WalletAccount account = wallet.GetAccount(hash);
if (account?.HasKey != true)
{
continue;
}
KeyPair key = account.GetKey();
additionalSignature = context.Verifiable.Sign(key);
}
}
var additionalVerificationScript = new byte[0];
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitPush(additionalSignature);
additionalVerificationScript = sb.ToArray();
}
var verificationScript = new byte[0];
using (ScriptBuilder sb = new ScriptBuilder())
{
sb.EmitPush(2);
sb.EmitPush("1");
verificationScript = sb.ToArray();
}
var witness = new Witness
{
InvocationScript = verificationScript,
VerificationScript = Blockchain.Default.GetContract(ScriptHash).Script
};
var additionalWitness = new Witness
{
InvocationScript = additionalVerificationScript,
VerificationScript = UserScript
};
var witnesses = new Witness[2] {
witness, additionalWitness
};
tx.Scripts = witnesses.ToList().OrderBy(p => p.ScriptHash).ToArray();
try
{
tx = Transaction.DeserializeFrom(tx.ToArray());
}
catch (Exception)
{
Console.WriteLine("Invalid Transaction Format");
}
if (tx.Verify(new List <Transaction> {
tx
}))
{
Console.WriteLine("Verify Transaction: True");
Console.WriteLine("Raw Transaction:");
Console.WriteLine(tx.ToArray().ToHexString());
//Console.WriteLine(tx.ToJson());
//Then Call neo-cli API：sendrawtransaction in postman.
}
else
{
Console.WriteLine("Verify Transaction: False");
}
}