mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-09 14:07:56 -05:00
67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
// Copyright © 2022 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 validatorcredentialsget
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import (
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"context"
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"encoding/hex"
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"fmt"
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"strings"
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ethutil "github.com/wealdtech/go-eth2-util"
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)
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func (c *command) output(_ context.Context) (string, error) {
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if c.quiet {
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return "", nil
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}
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builder := strings.Builder{}
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switch c.validatorInfo.Validator.WithdrawalCredentials[0] {
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case 0:
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builder.WriteString("BLS credentials: ")
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builder.WriteString(fmt.Sprintf("%#x", c.validatorInfo.Validator.WithdrawalCredentials))
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case 1:
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builder.WriteString("Ethereum execution address: ")
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builder.WriteString(addressBytesToEIP55(c.validatorInfo.Validator.WithdrawalCredentials[12:]))
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if c.verbose {
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builder.WriteString("\n")
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builder.WriteString("Withdrawal credentials: ")
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builder.WriteString(fmt.Sprintf("%#x", c.validatorInfo.Validator.WithdrawalCredentials))
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}
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}
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return builder.String(), nil
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}
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// addressBytesToEIP55 converts a byte array in to an EIP-55 string format.
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func addressBytesToEIP55(address []byte) string {
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bytes := []byte(hex.EncodeToString(address))
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hash := ethutil.Keccak256(bytes)
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for i := 0; i < len(bytes); i++ {
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hashByte := hash[i/2]
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if i%2 == 0 {
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hashByte >>= 4
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} else {
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hashByte &= 0xf
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}
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if bytes[i] > '9' && hashByte > 7 {
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bytes[i] -= 32
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}
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}
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return fmt.Sprintf("0x%s", string(bytes))
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}
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