public override bool Verify()
{
if (Blockchain.Default.ContainsTransaction(Hash))
{
return(true);
}
if (!Blockchain.Default.Ability.HasFlag(BlockchainAbility.UnspentIndexes) || !Blockchain.Default.Ability.HasFlag(BlockchainAbility.TransactionIndexes))
{
return(false);
}
if (Blockchain.Default.IsDoubleSpend(this))
{
return(false);
}
foreach (UInt256 hash in Outputs.Select(p => p.AssetId).Distinct())
{
if (!Blockchain.Default.ContainsAsset(hash))
{
return(false);
}
}
TransactionResult[] results = GetTransactionResults()?.ToArray();
if (results == null)
{
return(false);
}
TransactionResult[] results_destroy = results.Where(p => p.Amount > Fixed8.Zero).ToArray();
if (results_destroy.Length > 1)
{
return(false);
}
if (results_destroy.Length == 1 && results_destroy[0].AssetId != Blockchain.AntCoin.Hash)
{
return(false);
}
if (SystemFee > Fixed8.Zero && (results_destroy.Length == 0 || results_destroy[0].Amount < SystemFee))
{
return(false);
}
TransactionResult[] results_issue = results.Where(p => p.Amount < Fixed8.Zero).ToArray();
switch (Type)
{
case TransactionType.MinerTransaction:
case TransactionType.ClaimTransaction:
if (results_issue.Any(p => p.AssetId != Blockchain.AntCoin.Hash))
{
return(false);
}
break;
case TransactionType.IssueTransaction:
if (results_issue.Any(p => p.AssetId == Blockchain.AntCoin.Hash))
{
return(false);
}
break;
default:
if (results_issue.Length > 0)
{
return(false);
}
break;
}
TransactionAttribute script = Attributes.FirstOrDefault(p => p.Usage == TransactionAttributeUsage.Script);
if (script != null)
{
ScriptEngine engine = new ScriptEngine(new Script
{
StackScript = new byte[0],
RedeemScript = script.Data
}, this);
if (!engine.Execute())
{
return(false);
}
}
return(this.VerifySignature());
}
/// <summary>
/// 验证交易
/// </summary>
/// <returns>返回验证的结果</returns>
public override bool Verify()
{
if (Blockchain.Default.ContainsTransaction(Hash))
{
return(true);
}
if (!Blockchain.Default.Ability.HasFlag(BlockchainAbility.UnspentIndexes) || !Blockchain.Default.Ability.HasFlag(BlockchainAbility.TransactionIndexes))
{
return(false);
}
if (Blockchain.Default.IsDoubleSpend(this))
{
return(false);
}
foreach (var group in Outputs.GroupBy(p => p.AssetId))
{
RegisterTransaction asset = Blockchain.Default.GetTransaction(group.Key) as RegisterTransaction;
if (asset == null)
{
return(false);
}
foreach (TransactionOutput output in group)
{
if (output.Value.GetData() % (long)Math.Pow(10, 8 - asset.Precision) != 0)
{
return(false);
}
}
}
TransactionResult[] results = GetTransactionResults()?.ToArray();
if (results == null)
{
return(false);
}
TransactionResult[] results_destroy = results.Where(p => p.Amount > Fixed8.Zero).ToArray();
if (results_destroy.Length > 1)
{
return(false);
}
if (results_destroy.Length == 1 && results_destroy[0].AssetId != Blockchain.AntCoin.Hash)
{
return(false);
}
if (SystemFee > Fixed8.Zero && (results_destroy.Length == 0 || results_destroy[0].Amount < SystemFee))
{
return(false);
}
TransactionResult[] results_issue = results.Where(p => p.Amount < Fixed8.Zero).ToArray();
switch (Type)
{
case TransactionType.MinerTransaction:
case TransactionType.ClaimTransaction:
if (results_issue.Any(p => p.AssetId != Blockchain.AntCoin.Hash))
{
return(false);
}
break;
case TransactionType.IssueTransaction:
if (results_issue.Any(p => p.AssetId == Blockchain.AntCoin.Hash))
{
return(false);
}
break;
default:
if (results_issue.Length > 0)
{
return(false);
}
break;
}
TransactionAttribute script = Attributes.FirstOrDefault(p => p.Usage == TransactionAttributeUsage.Script);
if (script != null)
{
ScriptEngine engine = new ScriptEngine(new Script
{
StackScript = new byte[0],
RedeemScript = script.Data
}, this, InterfaceEngine.Default);
if (!engine.Execute())
{
return(false);
}
}
return(this.VerifySignature());
}