134 lines
3.1 KiB
Go
134 lines
3.1 KiB
Go
package bitcore
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import (
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"encoding/json"
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"github.com/golang/glog"
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"github.com/juju/errors"
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"spacecruft.org/spacecruft/blockbook/bchain"
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"spacecruft.org/spacecruft/blockbook/bchain/coins/btc"
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)
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// BitcoreRPC is an interface to JSON-RPC bitcoind service.
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type BitcoreRPC struct {
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*btc.BitcoinRPC
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}
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// NewBitcoreRPC returns new BitcoreRPC instance.
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func NewBitcoreRPC(config json.RawMessage, pushHandler func(bchain.NotificationType)) (bchain.BlockChain, error) {
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b, err := btc.NewBitcoinRPC(config, pushHandler)
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if err != nil {
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return nil, err
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}
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s := &BitcoreRPC{
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b.(*btc.BitcoinRPC),
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}
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s.RPCMarshaler = btc.JSONMarshalerV2{}
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s.ChainConfig.SupportsEstimateFee = false
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return s, nil
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}
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// Initialize initializes BitcoreRPC instance.
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func (b *BitcoreRPC) Initialize() error {
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ci, err := b.GetChainInfo()
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if err != nil {
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return err
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}
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chainName := ci.Chain
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glog.Info("Chain name ", chainName)
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params := GetChainParams(chainName)
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// always create parser
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b.Parser = NewBitcoreParser(params, b.ChainConfig)
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// parameters for getInfo request
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if params.Net == MainnetMagic {
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b.Testnet = false
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b.Network = "livenet"
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} else {
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b.Testnet = true
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b.Network = "testnet"
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}
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glog.Info("rpc: block chain ", params.Name)
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return nil
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}
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// GetBlock returns block with given hash.
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func (f *BitcoreRPC) GetBlock(hash string, height uint32) (*bchain.Block, error) {
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var err error
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if hash == "" {
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hash, err = f.GetBlockHash(height)
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if err != nil {
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return nil, err
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}
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}
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if !f.ParseBlocks {
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return f.GetBlockFull(hash)
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}
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// optimization
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if height > 0 {
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return f.GetBlockWithoutHeader(hash, height)
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}
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header, err := f.GetBlockHeader(hash)
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if err != nil {
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return nil, err
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}
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data, err := f.GetBlockRaw(hash)
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if err != nil {
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return nil, err
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}
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block, err := f.Parser.ParseBlock(data)
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if err != nil {
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return nil, errors.Annotatef(err, "hash %v", hash)
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}
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block.BlockHeader = *header
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return block, nil
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}
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// GetBlockFull returns block with given hash
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func (f *BitcoreRPC) GetBlockFull(hash string) (*bchain.Block, error) {
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glog.V(1).Info("rpc: getblock (verbosity=2) ", hash)
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res := btc.ResGetBlockFull{}
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req := btc.CmdGetBlock{Method: "getblock"}
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req.Params.BlockHash = hash
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req.Params.Verbosity = 2
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err := f.Call(&req, &res)
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if err != nil {
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return nil, errors.Annotatef(err, "hash %v", hash)
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}
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if res.Error != nil {
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if btc.IsErrBlockNotFound(res.Error) {
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return nil, bchain.ErrBlockNotFound
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}
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return nil, errors.Annotatef(res.Error, "hash %v", hash)
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}
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for i := range res.Result.Txs {
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tx := &res.Result.Txs[i]
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for j := range tx.Vout {
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vout := &tx.Vout[j]
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// convert vout.JsonValue to big.Int and clear it, it is only temporary value used for unmarshal
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vout.ValueSat, err = f.Parser.AmountToBigInt(vout.JsonValue)
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if err != nil {
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return nil, err
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}
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vout.JsonValue = ""
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}
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}
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return &res.Result, nil
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}
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// GetTransactionForMempool returns a transaction by the transaction ID.
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// It could be optimized for mempool, i.e. without block time and confirmations
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func (f *BitcoreRPC) GetTransactionForMempool(txid string) (*bchain.Tx, error) {
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return f.GetTransaction(txid)
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}
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