102 lines
2.3 KiB
Go
102 lines
2.3 KiB
Go
package viacoin
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import (
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"blockbook/bchain"
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"blockbook/bchain/coins/btc"
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"blockbook/bchain/coins/utils"
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"bytes"
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"github.com/martinboehm/btcd/wire"
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"github.com/martinboehm/btcutil/chaincfg"
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)
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const (
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MainnetMagic wire.BitcoinNet = 0xcbc6680f
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RegtestMagic wire.BitcoinNet = 0x377b972d
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)
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var (
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MainNetParams chaincfg.Params
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RegtestParams chaincfg.Params
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)
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func init() {
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MainNetParams = chaincfg.MainNetParams
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MainNetParams.Net = MainnetMagic
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// Mainnet address encoding magics
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MainNetParams.PubKeyHashAddrID = []byte{71} // base58 prefix: v
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MainNetParams.ScriptHashAddrID = []byte{33} // base68 prefix: E
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MainNetParams.Bech32HRPSegwit = "via"
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RegtestParams = chaincfg.RegressionNetParams
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RegtestParams.Net = RegtestMagic
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// Regtest address encoding magics
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RegtestParams.PubKeyHashAddrID = []byte{111} // base58 prefix: m or n
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RegtestParams.ScriptHashAddrID = []byte{196} // base58 prefix: 2
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RegtestParams.Bech32HRPSegwit = "tvia"
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err := chaincfg.Register(&MainNetParams)
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if err == nil {
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err = chaincfg.Register(&RegtestParams)
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}
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if err != nil {
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panic(err)
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}
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}
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// ViacoinParser handle
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type ViacoinParser struct {
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*btc.BitcoinParser
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}
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// NewViacoinParser returns new VertcoinParser instance
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func NewViacoinParser(params *chaincfg.Params, c *btc.Configuration) *ViacoinParser {
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return &ViacoinParser{BitcoinParser: btc.NewBitcoinParser(params, c)}
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}
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func GetChainParams(chain string) *chaincfg.Params {
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switch chain {
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case "regtest":
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return &RegtestParams
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default:
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return &MainNetParams
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}
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}
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// ParseBlock parses raw block to our Block struct
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// it has special handling for Auxpow blocks that cannot be parsed by standard btc wire parse
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func (p *ViacoinParser) ParseBlock(b []byte) (*bchain.Block, error) {
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r := bytes.NewReader(b)
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w := wire.MsgBlock{}
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h := wire.BlockHeader{}
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err := h.Deserialize(r)
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if err != nil {
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return nil, err
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}
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if (h.Version & utils.VersionAuxpow) != 0 {
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if err = utils.SkipAuxpow(r); err != nil {
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return nil, err
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}
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}
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err = utils.DecodeTransactions(r, 0, wire.WitnessEncoding, &w)
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if err != nil {
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return nil, err
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}
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txs := make([]bchain.Tx, len(w.Transactions))
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for ti, t := range w.Transactions {
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txs[ti] = p.TxFromMsgTx(t, false)
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}
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return &bchain.Block{
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BlockHeader: bchain.BlockHeader{
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Size: len(b),
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Time: h.Timestamp.Unix(),
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},
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Txs: txs,
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}, nil
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}
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