github.com/trezor/blockbook@v0.4.1-0.20240328132726-e9a08582ee2c/bchain/coins/trezarcoin/trezarcoinrpc.go (about)

     1  package trezarcoin
     2  
     3  import (
     4  	"encoding/json"
     5  
     6  	"github.com/golang/glog"
     7  	"github.com/juju/errors"
     8  	"github.com/trezor/blockbook/bchain"
     9  	"github.com/trezor/blockbook/bchain/coins/btc"
    10  )
    11  
    12  // TrezarcoinRPC is an interface to JSON-RPC bitcoind service.
    13  type TrezarcoinRPC struct {
    14  	*btc.BitcoinRPC
    15  }
    16  
    17  // NewTrezarcoinRPC returns new TrezarcoinRPC instance.
    18  func NewTrezarcoinRPC(config json.RawMessage, pushHandler func(bchain.NotificationType)) (bchain.BlockChain, error) {
    19  	b, err := btc.NewBitcoinRPC(config, pushHandler)
    20  	if err != nil {
    21  		return nil, err
    22  	}
    23  
    24  	s := &TrezarcoinRPC{
    25  		b.(*btc.BitcoinRPC),
    26  	}
    27  	s.RPCMarshaler = btc.JSONMarshalerV1{}
    28  	s.ChainConfig.SupportsEstimateFee = false
    29  
    30  	return s, nil
    31  }
    32  
    33  // Initialize initializes TrezarcoinRPC instance.
    34  func (b *TrezarcoinRPC) Initialize() error {
    35  	ci, err := b.GetChainInfo()
    36  	if err != nil {
    37  		return err
    38  	}
    39  	chainName := ci.Chain
    40  
    41  	glog.Info("Chain name ", chainName)
    42  	params := GetChainParams(chainName)
    43  
    44  	// always create parser
    45  	b.Parser = NewTrezarcoinParser(params, b.ChainConfig)
    46  
    47  	// parameters for getInfo request
    48  	b.Testnet = false
    49  	b.Network = "livenet"
    50  
    51  	glog.Info("rpc: block chain ", params.Name)
    52  
    53  	return nil
    54  }
    55  
    56  // GetBlock returns block with given hash.
    57  func (f *TrezarcoinRPC) GetBlock(hash string, height uint32) (*bchain.Block, error) {
    58  	var err error
    59  	if hash == "" && height > 0 {
    60  		hash, err = f.GetBlockHash(height)
    61  		if err != nil {
    62  			return nil, err
    63  		}
    64  	}
    65  
    66  	glog.V(1).Info("rpc: getblock (verbosity=1) ", hash)
    67  
    68  	res := btc.ResGetBlockThin{}
    69  	req := btc.CmdGetBlock{Method: "getblock"}
    70  	req.Params.BlockHash = hash
    71  	req.Params.Verbosity = 1
    72  	err = f.Call(&req, &res)
    73  
    74  	if err != nil {
    75  		return nil, errors.Annotatef(err, "hash %v", hash)
    76  	}
    77  	if res.Error != nil {
    78  		return nil, errors.Annotatef(res.Error, "hash %v", hash)
    79  	}
    80  
    81  	txs := make([]bchain.Tx, 0, len(res.Result.Txids))
    82  	for _, txid := range res.Result.Txids {
    83  		tx, err := f.GetTransaction(txid)
    84  		if err != nil {
    85  			if err == bchain.ErrTxNotFound {
    86  				glog.Errorf("rpc: getblock: skipping transanction in block %s due error: %s", hash, err)
    87  				continue
    88  			}
    89  			return nil, err
    90  		}
    91  		txs = append(txs, *tx)
    92  	}
    93  	block := &bchain.Block{
    94  		BlockHeader: res.Result.BlockHeader,
    95  		Txs:         txs,
    96  	}
    97  	return block, nil
    98  }
    99  
   100  // GetTransactionForMempool returns a transaction by the transaction ID.
   101  // It could be optimized for mempool, i.e. without block time and confirmations
   102  func (f *TrezarcoinRPC) GetTransactionForMempool(txid string) (*bchain.Tx, error) {
   103  	return f.GetTransaction(txid)
   104  }
   105  
   106  // GetMempoolEntry returns mempool data for given transaction
   107  func (f *TrezarcoinRPC) GetMempoolEntry(txid string) (*bchain.MempoolEntry, error) {
   108  	return nil, errors.New("GetMempoolEntry: not implemented")
   109  }
   110  
   111  func isErrBlockNotFound(err *bchain.RPCError) bool {
   112  	return err.Message == "Block not found" ||
   113  		err.Message == "Block height out of range"
   114  }