mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-10 06:28:07 -05:00
107 lines
3.8 KiB
Go
107 lines
3.8 KiB
Go
// Copyright © 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 cmd
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import (
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"context"
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"fmt"
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"os"
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ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
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"github.com/prysmaticlabs/go-ssz"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/wealdtech/ethdo/grpc"
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types "github.com/wealdtech/go-eth2-types"
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)
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var validatorExitEpoch int64
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var validatorExitCmd = &cobra.Command{
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Use: "exit",
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Short: "Send an exit request for a validator",
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Long: `Send an exit request for a validator. For example:
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ethdo validator exit --account=primary/validator --passphrase=secret
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In quiet mode this will return 0 if the transaction has been sent, otherwise 1.`,
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Run: func(cmd *cobra.Command, args []string) {
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// Sanity checking and setup.
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assert(rootAccount != "", "--account is required")
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account, err := accountFromPath(rootAccount)
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errCheck(err, "Failed to access account")
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err = connect()
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errCheck(err, "Failed to obtain connect to Ethereum 2 beacon chain node")
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// Fetch the validator's index.
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index, err := grpc.FetchValidatorIndex(eth2GRPCConn, account)
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errCheck(err, "Failed to obtain validator index")
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outputIf(debug, fmt.Sprintf("Validator index is %d", index))
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// Ensure the validator is active.
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state, err := grpc.FetchValidatorState(eth2GRPCConn, account)
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errCheck(err, "Failed to obtain validator state")
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outputIf(debug, fmt.Sprintf("Validator state is %v", state))
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assert(state == ethpb.ValidatorStatus_ACTIVE, "Validator must be active to exit")
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// Ensure the validator has been active long enough to exit.
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// TODO when we can fetch the current epoch
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// config, err := grpc.Config(eth2GRPCConn)
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// errCheck(err, "Failed to obtain beacon config")
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// fmt.Printf("%+v\n", config)
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validator, err := grpc.FetchValidator(eth2GRPCConn, account)
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errCheck(err, "Failed to obtain validator information")
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outputIf(debug, fmt.Sprintf("Activation epoch is %v", validator.ActivationEpoch))
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outputIf(verbose, "Validator confirmed to be in a suitable state")
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// Set up the transaction.
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exit := ðpb.VoluntaryExit{
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// TODO use value from config
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Epoch: validator.ActivationEpoch + 2048,
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ValidatorIndex: index,
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}
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root, err := ssz.HashTreeRoot(exit)
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errCheck(err, "Failed to generate exit proposal root")
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// TODO fetch current fork version from config
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domain := types.Domain(types.DomainVoluntaryExit, []byte{0, 0, 0, 4})
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err = account.Unlock([]byte(rootAccountPassphrase))
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errCheck(err, "Failed to unlock account; please confirm passphrase is correct")
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signature, err := sign(account, root[:], domain)
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errCheck(err, "Failed to sign exit proposal")
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proposal := ðpb.SignedVoluntaryExit{
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Exit: exit,
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Signature: signature.Marshal(),
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}
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validatorClient := ethpb.NewBeaconNodeValidatorClient(eth2GRPCConn)
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ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
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defer cancel()
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_, err = validatorClient.ProposeExit(ctx, proposal)
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errCheck(err, "Failed to propose exit")
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outputIf(!quiet, "Validator exit transaction sent")
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os.Exit(_exit_success)
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},
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}
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func init() {
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validatorCmd.AddCommand(validatorExitCmd)
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validatorFlags(validatorExitCmd)
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validatorExitCmd.Flags().Int64Var(&validatorExitEpoch, "epoch", -1, "Epoch at which to exit (defaults to now)")
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addTransactionFlags(validatorExitCmd)
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}
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