public JObject ToJson()
{
JObject json = new JObject();
json["network_identifier"] = NetworkIdentifier.ToJson();
json["block_identifier"] = BlockIdentifier.ToJson();
json["transaction_identifier"] = TransactionIdentifier.ToJson();
return(json);
}
public Block(BlockIdentifier blockIdentifier, BlockIdentifier parentBlockIdentifier,
long timestamp, Transaction[] transactions, Metadata metadata = null)
{
BlockIdentifier = blockIdentifier;
ParentBlockIdentifier = parentBlockIdentifier;
Timestamp = timestamp;
Transactions = transactions;
Metadata = metadata;
}
public NetworkStatusResponse(BlockIdentifier currentBlockIdentifier, long currentBlockTimestamp, BlockIdentifier genesisBlockIdentifier,
Peer[] peers, BlockIdentifier oldestBlockIdentifier = null)
{
CurrentBlockIdentifier = currentBlockIdentifier;
CurrentBlockTimestamp = currentBlockTimestamp;
GenesisBlockIdentifier = genesisBlockIdentifier;
Peers = peers;
OldestBlockIdentifier = oldestBlockIdentifier;
}
public static Block FromJson(JObject json)
{
return(new(
BlockIdentifier.FromJson(json["block_identifier"]),
BlockIdentifier.FromJson(json["parent_block_identifier"]),
(long)json["timestamp"].GetNumber(),
json["transactions"].GetArray().Select(p => Transaction.FromJson(p)).ToArray(),
Metadata.FromJson(json["metadata"])
));
}
public JObject ToJson()
{
JObject json = new JObject();
json["block_identifier"] = BlockIdentifier.ToJson();
json["balances"] = Balances.Select(p => p.ToJson()).ToArray();
if (Metadata != null && Metadata.ToJson() != null)
{
json["metadata"] = Metadata.ToJson();
}
return(json);
}
public JObject ToJson()
{
JObject json = new JObject();
json["block_identifier"] = BlockIdentifier.ToJson();
json["parent_block_identifier"] = ParentBlockIdentifier.ToJson();
json["timestamp"] = Timestamp.ToString();
json["transactions"] = Transactions.Select(p => p.ToJson()).ToArray();
if (Metadata != null && Metadata.ToJson() != null)
{
json["metadata"] = Metadata.ToJson();
}
return(json);
}
public JObject NetworkStatus(NetworkRequest request)
{
if (request.NetworkIdentifier?.Blockchain?.ToLower() != "neo n3")
{
return(Error.NETWORK_IDENTIFIER_INVALID.ToJson());
}
if (request.NetworkIdentifier?.Network?.ToLower() != network)
{
return(Error.NETWORK_IDENTIFIER_INVALID.ToJson());
}
var snapshot = system.StoreView;
uint currentHeight = NativeContract.Ledger.CurrentIndex(snapshot);
NeoBlock currentBlock = NativeContract.Ledger.GetBlock(snapshot, currentHeight);
if (currentBlock == null)
{
return(Error.BLOCK_NOT_FOUND.ToJson());
}
string currentBlockHash = currentBlock.Hash.ToString();
long currentBlockTimestamp = (long)currentBlock.Timestamp;
BlockIdentifier currentBlockIdentifier = new BlockIdentifier(currentHeight, currentBlockHash);
BlockIdentifier genesisBlockIdentifier = new BlockIdentifier(system.GenesisBlock.Index, system.GenesisBlock.Hash.ToString());
var localNode = system.LocalNode.Ask <LocalNode>(new LocalNode.GetInstance()).Result;
var connected = localNode.GetRemoteNodes().Select(p => new Peer(p.GetHashCode().IntToHash160String(),
new Metadata(new Dictionary <string, JObject>
{
{ "connected", true.ToString().ToLower() },
{ "address", p.Listener.ToString() },
{ "height", p.LastBlockIndex }
})
));
var unconnected = localNode.GetUnconnectedPeers().Select(p => new Peer(p.GetHashCode().IntToHash160String(),
new Metadata(new Dictionary <string, JObject>
{
{ "unconnected", false.ToString().ToLower() },
{ "address", p.ToString() }
})
));
Peer[] peers = connected.Concat(unconnected).ToArray();
NetworkStatusResponse response = new NetworkStatusResponse(currentBlockIdentifier, currentBlockTimestamp, genesisBlockIdentifier, peers);
return(response.ToJson());
}
public JObject AccountBalance(AccountBalanceRequest request)
{
if (request.AccountIdentifier is null)
{
return(Error.ACCOUNT_IDENTIFIER_INVALID.ToJson());
}
UInt160 account;
try
{
account = request.AccountIdentifier.Address.ToScriptHash();
}
catch (Exception)
{
return(Error.ACCOUNT_ADDRESS_INVALID.ToJson());
}
// can only get current balance
Amount[] balances = GetUtxoBalance(account);
if (balances is null)
{
return(Error.ACCOUNT_NOT_FOUND.ToJson());
}
if (request.AccountIdentifier.SubAccountIdentifier != null) // then need to get the nep5 balance
{
if (!UInt160.TryParse(request.AccountIdentifier.SubAccountIdentifier.Address, out UInt160 scriptHash))
{
return(Error.CONTRACT_ADDRESS_INVALID.ToJson());
}
Amount[] nep5Balances = GetNep5Balance(scriptHash, account);
if (nep5Balances is null)
{
return(Error.VM_FAULT.ToJson());
}
balances = balances.Concat(nep5Balances).ToArray();
}
NeoBlock currentBlock = Blockchain.Singleton.GetBlock(Blockchain.Singleton.CurrentBlockHash);
BlockIdentifier blockIdentifier = new BlockIdentifier(currentBlock.Index, currentBlock.Hash.ToString());
AccountBalanceResponse response = new AccountBalanceResponse(blockIdentifier, balances);
return(response.ToJson());
}
public JObject NetworkStatus(NetworkRequest request)
{
long currentHeight = Blockchain.Singleton.Height;
NeoBlock currentBlock = Blockchain.Singleton.GetBlock(Blockchain.Singleton.CurrentBlockHash);
if (currentBlock == null)
{
return(Error.BLOCK_NOT_FOUND.ToJson());
}
string currentBlockHash = currentBlock.Hash.ToString();
long currentBlockTimestamp = currentBlock.Timestamp * 1000;
BlockIdentifier currentBlockIdentifier = new BlockIdentifier(currentHeight, currentBlockHash);
BlockIdentifier genesisBlockIdentifier = new BlockIdentifier(Blockchain.GenesisBlock.Index, Blockchain.GenesisBlock.Hash.ToString());
var connected = LocalNode.Singleton.GetRemoteNodes().Select(p => new Peer(p.GetHashCode().IntToHash160String(),
new Metadata(new Dictionary <string, JObject>
{
{ "connected", true.ToString().ToLower() },
{ "address", p.Listener.ToString() },
{ "height", p.LastBlockIndex.ToString() }
})
));
var unconnected = LocalNode.Singleton.GetUnconnectedPeers().Select(p => new Peer(p.GetHashCode().IntToHash160String(),
new Metadata(new Dictionary <string, JObject>
{
{ "connected", false.ToString().ToLower() },
{ "address", p.ToString() }
})
));
Peer[] peers = connected.Concat(unconnected).ToArray();
NetworkStatusResponse response = new NetworkStatusResponse(currentBlockIdentifier, currentBlockTimestamp, genesisBlockIdentifier, peers);
return(response.ToJson());
}
public AccountBalanceResponse(BlockIdentifier blockIdentifier, Amount[] balances, Metadata metadata = null)
{
BlockIdentifier = blockIdentifier;
Balances = balances;
Metadata = metadata;
}
/// <summary>
/// Get a block by its Block Identifier.
/// If transactions are returned in the same call to the node as fetching the block,
/// the response should include these transactions in the Block object.
/// If not, an array of Transaction Identifiers should be returned.
/// So /block/transaction fetches can be done to get all transaction information.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public JObject Block(BlockRequest request)
{
var index = request.BlockIdentifier.Index;
var hash = request.BlockIdentifier.Hash;
if (index == null && hash == null)
{
return(Error.BLOCK_IDENTIFIER_INVALID.ToJson());
}
if (index != null && index < 0)
{
return(Error.BLOCK_INDEX_INVALID.ToJson());
}
NeoBlock neoBlock;
UInt256 blockHash;
if (hash != null)
{
if (!UInt256.TryParse(hash, out blockHash))
{
return(Error.BLOCK_HASH_INVALID.ToJson());
}
}
else
{
blockHash = Blockchain.Singleton.GetBlockHash((uint)index);
if (blockHash == null)
{
return(Error.BLOCK_INDEX_INVALID.ToJson());
}
}
neoBlock = Blockchain.Singleton.GetBlock(blockHash);
if (neoBlock == null)
{
return(Error.BLOCK_NOT_FOUND.ToJson());
}
BlockIdentifier blockIdentifier = new BlockIdentifier(neoBlock.Index, neoBlock.Hash.ToString());
// get parent block
BlockIdentifier parentBlockIdentifier;
if (neoBlock.Index == 0)
{
parentBlockIdentifier = blockIdentifier;
}
else
{
var parentBlockHash = Blockchain.Singleton.GetBlockHash(neoBlock.Index - 1);
if (parentBlockHash == null)
{
return(Error.BLOCK_INDEX_INVALID.ToJson());
}
var parentBlock = Blockchain.Singleton.GetBlock(parentBlockHash);
if (parentBlock == null)
{
return(Error.BLOCK_NOT_FOUND.ToJson());
}
parentBlockIdentifier = new BlockIdentifier(parentBlock.Index, parentBlock.Hash.ToString());
}
// handle transactions
Transaction[] transactions = new Transaction[] { };
TransactionIdentifier[] otherTransactions = new TransactionIdentifier[] { };
foreach (var neoTx in neoBlock.Transactions)
{
var tx = ConvertTx(neoTx);
if (tx == null)
{
continue;
}
if (tx.Operations.Length > 0)
{
transactions = transactions.Append(tx).ToArray();
}
else
{
otherTransactions = otherTransactions.Append(new TransactionIdentifier(neoTx.Hash.ToString())).ToArray();
}
}
Block block = new Block(blockIdentifier, parentBlockIdentifier, neoBlock.Timestamp * 1000, transactions);
BlockResponse response = new BlockResponse(block, otherTransactions.Length > 0 ? otherTransactions : null);
return(response.ToJson());
}
public static BlockTransactionRequest FromJson(JObject json)
{
return(new BlockTransactionRequest(NetworkIdentifier.FromJson(json["network_identifier"]),
BlockIdentifier.FromJson(json["block_identifier"]),
TransactionIdentifier.FromJson(json["transaction_identifier"])));
}
public BlockTransactionRequest(NetworkIdentifier networkIdentifier, BlockIdentifier blockIdentifier, TransactionIdentifier transactionIdentifier)
{
NetworkIdentifier = networkIdentifier;
BlockIdentifier = blockIdentifier;
TransactionIdentifier = transactionIdentifier;
}
