mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-07 21:24:01 -05:00
107 lines
3.2 KiB
Go
107 lines
3.2 KiB
Go
// Copyright © 2023 Weald Technology Trading.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package beacon
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import (
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"encoding/hex"
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"encoding/json"
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"fmt"
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"strconv"
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"strings"
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apiv1 "github.com/attestantio/go-eth2-client/api/v1"
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"github.com/attestantio/go-eth2-client/spec/phase0"
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"github.com/pkg/errors"
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)
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type ValidatorInfo struct {
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Index phase0.ValidatorIndex
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Pubkey phase0.BLSPubKey
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State apiv1.ValidatorState
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WithdrawalCredentials []byte
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}
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type validatorInfoJSON struct {
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Index string `json:"index"`
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Pubkey string `json:"pubkey"`
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State apiv1.ValidatorState `json:"state"`
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WithdrawalCredentials string `json:"withdrawal_credentials"`
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}
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// MarshalJSON implements json.Marshaler.
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func (v *ValidatorInfo) MarshalJSON() ([]byte, error) {
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return json.Marshal(&validatorInfoJSON{
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Index: fmt.Sprintf("%d", v.Index),
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Pubkey: fmt.Sprintf("%#x", v.Pubkey),
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State: v.State,
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WithdrawalCredentials: fmt.Sprintf("%#x", v.WithdrawalCredentials),
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})
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}
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// UnmarshalJSON implements json.Unmarshaler.
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func (v *ValidatorInfo) UnmarshalJSON(input []byte) error {
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var data validatorInfoJSON
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if err := json.Unmarshal(input, &data); err != nil {
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return errors.Wrap(err, "invalid JSON")
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}
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if data.Index == "" {
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return errors.New("index missing")
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}
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index, err := strconv.ParseUint(data.Index, 10, 64)
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if err != nil {
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return errors.Wrap(err, "invalid value for index")
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}
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v.Index = phase0.ValidatorIndex(index)
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if data.Pubkey == "" {
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return errors.New("public key missing")
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}
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pubkey, err := hex.DecodeString(strings.TrimPrefix(data.Pubkey, "0x"))
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if err != nil {
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return errors.Wrap(err, "invalid value for public key")
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}
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if len(pubkey) != phase0.PublicKeyLength {
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return fmt.Errorf("incorrect length %d for public key", len(pubkey))
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}
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copy(v.Pubkey[:], pubkey)
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if data.State == apiv1.ValidatorStateUnknown {
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return errors.New("state unknown")
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}
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v.State = data.State
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if data.WithdrawalCredentials == "" {
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return errors.New("withdrawal credentials missing")
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}
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v.WithdrawalCredentials, err = hex.DecodeString(strings.TrimPrefix(data.WithdrawalCredentials, "0x"))
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if err != nil {
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return errors.Wrap(err, "invalid value for withdrawal credentials")
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}
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if len(v.WithdrawalCredentials) != phase0.HashLength {
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return fmt.Errorf("incorrect length %d for withdrawal credentials", len(v.WithdrawalCredentials))
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}
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return nil
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}
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// String implements the Stringer interface.
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func (v *ValidatorInfo) String() string {
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data, err := json.Marshal(v)
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if err != nil {
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return fmt.Sprintf("Err: %v\n", err)
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}
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return string(data)
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}
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