neo-go/pkg/core/transaction/witness.go
Roman Khimov 361724a33e pkg/core: use util.binaryReader/Writer
Simplify error handling.
2019-08-28 19:45:17 +03:00

55 lines
1.3 KiB
Go

package transaction
import (
"encoding/hex"
"encoding/json"
"io"
"github.com/CityOfZion/neo-go/pkg/crypto/hash"
"github.com/CityOfZion/neo-go/pkg/util"
)
// Witness contains 2 scripts.
type Witness struct {
InvocationScript []byte
VerificationScript []byte
}
// DecodeBinary implements the payload interface.
func (w *Witness) DecodeBinary(r io.Reader) error {
br := util.BinReader{R: r}
w.InvocationScript = br.ReadBytes()
w.VerificationScript = br.ReadBytes()
return br.Err
}
// EncodeBinary implements the payload interface.
func (w *Witness) EncodeBinary(writer io.Writer) error {
bw := util.BinWriter{W: writer}
bw.WriteBytes(w.InvocationScript)
bw.WriteBytes(w.VerificationScript)
return bw.Err
}
// MarshalJSON implements the json marshaller interface.
func (w *Witness) MarshalJSON() ([]byte, error) {
data := map[string]string{
"invocation": hex.EncodeToString(w.InvocationScript),
"verification": hex.EncodeToString(w.VerificationScript),
}
return json.Marshal(data)
}
// Size returns the size in bytes of the Witness.
func (w *Witness) Size() int {
return util.GetVarSize(w.InvocationScript) + util.GetVarSize(w.VerificationScript)
}
// ScriptHash returns the hash of the VerificationScript.
func (w Witness) ScriptHash() util.Uint160 {
return hash.Hash160(w.VerificationScript)
}