mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-09 14:07:56 -05:00
88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
// Copyright © 2019, 2020 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 depositdata
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import (
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"context"
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"fmt"
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spec "github.com/attestantio/go-eth2-client/spec/phase0"
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"github.com/pkg/errors"
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"github.com/wealdtech/ethdo/core"
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"github.com/wealdtech/ethdo/signing"
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e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
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)
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func process(data *dataIn) ([]*dataOut, error) {
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if data == nil {
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return nil, errors.New("no data")
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}
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results := make([]*dataOut, 0)
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for _, validatorAccount := range data.validatorAccounts {
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validatorPubKey, err := core.BestPublicKey(validatorAccount)
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if err != nil {
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return nil, errors.Wrap(err, "validator account does not provide a public key")
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}
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var pubKey spec.BLSPubKey
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copy(pubKey[:], validatorPubKey.Marshal())
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depositMessage := &spec.DepositMessage{
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PublicKey: pubKey,
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WithdrawalCredentials: data.withdrawalCredentials,
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Amount: data.amount,
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}
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root, err := depositMessage.HashTreeRoot()
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if err != nil {
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return nil, errors.Wrap(err, "failed to generate deposit message root")
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}
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var depositMessageRoot spec.Root
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copy(depositMessageRoot[:], root[:])
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sig, err := signing.SignRoot(context.Background(), validatorAccount, data.passphrases, depositMessageRoot, *data.domain)
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if err != nil {
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return nil, errors.Wrap(err, "failed to sign deposit message")
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}
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depositData := &spec.DepositData{
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PublicKey: pubKey,
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WithdrawalCredentials: data.withdrawalCredentials,
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Amount: data.amount,
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Signature: sig,
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}
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root, err = depositData.HashTreeRoot()
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if err != nil {
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return nil, errors.Wrap(err, "failed to generate deposit data root")
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}
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var depositDataRoot spec.Root
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copy(depositDataRoot[:], root[:])
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validatorWallet := validatorAccount.(e2wtypes.AccountWalletProvider).Wallet()
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results = append(results, &dataOut{
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format: data.format,
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account: fmt.Sprintf("%s/%s", validatorWallet.Name(), validatorAccount.Name()),
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validatorPubKey: &pubKey,
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withdrawalCredentials: data.withdrawalCredentials,
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amount: data.amount,
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signature: &sig,
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forkVersion: data.forkVersion,
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depositMessageRoot: &depositMessageRoot,
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depositDataRoot: &depositDataRoot,
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})
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}
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return results, nil
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}
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