private bool CheckValidators(ApplicationEngine engine)
{
UInt256 prev_hash = engine.Snapshot.PersistingBlock.PrevHash;
TrimmedBlock prev_block = engine.Snapshot.Blocks[prev_hash];
return(InteropService.CheckWitness(engine, prev_block.NextConsensus));
}
private TrimmedBlock GetBlock(ApplicationEngine engine, byte[] indexOrHash)
{
UInt256 hash;
if (indexOrHash.Length < UInt256.Length)
{
hash = GetBlockHash(engine.Snapshot, (uint)new BigInteger(indexOrHash));
}
else if (indexOrHash.Length == UInt256.Length)
{
hash = new UInt256(indexOrHash);
}
else
{
throw new ArgumentException(null, nameof(indexOrHash));
}
if (hash is null)
{
return(null);
}
TrimmedBlock block = GetTrimmedBlock(engine.Snapshot, hash);
if (block is null || !IsTraceableBlock(engine.Snapshot, block.Index, engine.ProtocolSettings.MaxTraceableBlocks))
{
return(null);
}
return(block);
}
private Transaction GetTransactionFromBlock(ApplicationEngine engine, byte[] blockIndexOrHash, int txIndex)
{
UInt256 hash;
if (blockIndexOrHash.Length < UInt256.Length)
{
hash = GetBlockHash(engine.Snapshot, (uint)new BigInteger(blockIndexOrHash));
}
else if (blockIndexOrHash.Length == UInt256.Length)
{
hash = new UInt256(blockIndexOrHash);
}
else
{
throw new ArgumentException(null, nameof(blockIndexOrHash));
}
if (hash is null)
{
return(null);
}
TrimmedBlock block = GetTrimmedBlock(engine.Snapshot, hash);
if (block is null || !IsTraceableBlock(engine.Snapshot, block.Index, engine.ProtocolSettings.MaxTraceableBlocks))
{
return(null);
}
if (txIndex < 0 || txIndex >= block.Hashes.Length)
{
throw new ArgumentOutOfRangeException(nameof(txIndex));
}
return(GetTransaction(engine.Snapshot, block.Hashes[txIndex]));
}
void IInteroperable.FromReplica(IInteroperable replica)
{
TrimmedBlock from = (TrimmedBlock)replica;
Header = from.Header;
Hashes = from.Hashes;
}
private TrimmedBlock GetBlock(DataCache snapshot, byte[] indexOrHash)
{
UInt256 hash;
if (indexOrHash.Length < UInt256.Length)
{
hash = GetBlockHash(snapshot, (uint)new BigInteger(indexOrHash));
}
else if (indexOrHash.Length == UInt256.Length)
{
hash = new UInt256(indexOrHash);
}
else
{
throw new ArgumentException(null, nameof(indexOrHash));
}
if (hash is null)
{
return(null);
}
TrimmedBlock block = GetTrimmedBlock(snapshot, hash);
if (block is null || !IsTraceableBlock(snapshot, block.Index))
{
return(null);
}
return(block);
}
private Transaction GetTransactionFromBlock(DataCache snapshot, byte[] blockIndexOrHash, int txIndex)
{
UInt256 hash;
if (blockIndexOrHash.Length < UInt256.Length)
{
hash = GetBlockHash(snapshot, (uint)new BigInteger(blockIndexOrHash));
}
else if (blockIndexOrHash.Length == UInt256.Length)
{
hash = new UInt256(blockIndexOrHash);
}
else
{
throw new ArgumentException(null, nameof(blockIndexOrHash));
}
if (hash is null)
{
return(null);
}
TrimmedBlock block = GetTrimmedBlock(snapshot, hash);
if (block is null || !IsTraceableBlock(snapshot, block.Index))
{
return(null);
}
if (txIndex < 0 || txIndex >= block.Hashes.Length - 1)
{
throw new ArgumentOutOfRangeException(nameof(txIndex));
}
return(GetTransaction(snapshot, block.Hashes[txIndex + 1]));
}
public Block GetBlock(DataCache snapshot, UInt256 hash)
{
TrimmedBlock state = GetTrimmedBlock(snapshot, hash);
if (state is null)
{
return(null);
}
return(new Block
{
Header = state.Header,
Transactions = state.Hashes.Select(p => GetTransaction(snapshot, p)).ToArray()
});
}
public Block GetBlock(DataCache snapshot, UInt256 hash)
{
TrimmedBlock state = GetTrimmedBlock(snapshot, hash);
if (state is null)
{
return(null);
}
return(new Block
{
Version = state.Version,
PrevHash = state.PrevHash,
MerkleRoot = state.MerkleRoot,
Timestamp = state.Timestamp,
Index = state.Index,
NextConsensus = state.NextConsensus,
Witness = state.Witness,
ConsensusData = state.ConsensusData,
Transactions = state.Hashes.Skip(1).Select(p => GetTransaction(snapshot, p)).ToArray()
});
}