Files
ethdo/util/validatorexitdata.go
2020-12-09 20:33:30 +00:00

70 lines
2.0 KiB
Go

// Copyright © 2020 Weald Technology Trading
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package util
import (
"encoding/hex"
"encoding/json"
"fmt"
"strings"
spec "github.com/attestantio/go-eth2-client/spec/phase0"
"github.com/pkg/errors"
)
// ValidatorExitData contains data for a validator exit.
type ValidatorExitData struct {
Exit *spec.SignedVoluntaryExit
ForkVersion spec.Version
}
type validatorExitJSON struct {
Exit *spec.SignedVoluntaryExit `json:"exit"`
ForkVersion string `json:"fork_version"`
}
// MarshalJSON implements custom JSON marshaller.
func (d *ValidatorExitData) MarshalJSON() ([]byte, error) {
validatorExitJSON := &validatorExitJSON{
Exit: d.Exit,
ForkVersion: fmt.Sprintf("%#x", d.ForkVersion),
}
return json.Marshal(validatorExitJSON)
}
// UnmarshalJSON implements custom JSON unmarshaller.
func (d *ValidatorExitData) UnmarshalJSON(data []byte) error {
validatorExitJSON := &validatorExitJSON{}
if err := json.Unmarshal(data, validatorExitJSON); err != nil {
return errors.Wrap(err, "failed to unmarshal JSON")
}
if validatorExitJSON.Exit == nil {
return errors.New("exit missing")
}
d.Exit = validatorExitJSON.Exit
if validatorExitJSON.ForkVersion == "" {
return errors.New("fork version missing")
}
forkVersion, err := hex.DecodeString(strings.TrimPrefix(validatorExitJSON.ForkVersion, "0x"))
if err != nil {
return errors.Wrap(err, "fork version invalid")
}
copy(d.ForkVersion[:], forkVersion)
return nil
}