Files
ethdo/cmd/block/info/output.go
2025-02-26 09:40:03 +00:00

1422 lines
45 KiB
Go

// Copyright © 2019 - 2023 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 blockinfo
import (
"bytes"
"context"
"encoding/hex"
"fmt"
"math/big"
"regexp"
"sort"
"strconv"
"strings"
"time"
"unicode/utf8"
eth2client "github.com/attestantio/go-eth2-client"
"github.com/attestantio/go-eth2-client/api"
"github.com/attestantio/go-eth2-client/spec/altair"
"github.com/attestantio/go-eth2-client/spec/bellatrix"
"github.com/attestantio/go-eth2-client/spec/capella"
"github.com/attestantio/go-eth2-client/spec/deneb"
"github.com/attestantio/go-eth2-client/spec/electra"
"github.com/attestantio/go-eth2-client/spec/phase0"
"github.com/pkg/errors"
"github.com/prysmaticlabs/go-bitfield"
"github.com/wealdtech/go-string2eth"
)
type dataOut struct {
debug bool
verbose bool
eth2Client eth2client.Service
genesisTime time.Time
slotDuration time.Duration
slotsPerEpoch uint64
}
func output(_ context.Context, data *dataOut) (string, error) {
if data == nil {
return "", errors.New("no data")
}
return "", nil
}
func outputBlockGeneral(ctx context.Context,
verbose bool,
slot phase0.Slot,
proposerIndex phase0.ValidatorIndex,
blockRoot phase0.Root,
bodyRoot phase0.Root,
parentRoot phase0.Root,
stateRoot phase0.Root,
graffiti []byte,
genesisTime time.Time,
slotDuration time.Duration,
slotsPerEpoch uint64,
) (
string,
error,
) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("Slot: %d\n", slot))
res.WriteString(fmt.Sprintf("Proposing validator index: %d\n", proposerIndex))
res.WriteString(fmt.Sprintf("Epoch: %d\n", phase0.Epoch(uint64(slot)/slotsPerEpoch)))
res.WriteString(fmt.Sprintf("Timestamp: %v\n", time.Unix(genesisTime.Unix()+int64(slot)*int64(slotDuration.Seconds()), 0)))
res.WriteString(fmt.Sprintf("Block root: %#x\n", blockRoot))
res.WriteString(fmt.Sprintf("Parent root: %#x\n", parentRoot))
if verbose {
res.WriteString(fmt.Sprintf("Body root: %#x\n", bodyRoot))
res.WriteString(fmt.Sprintf("State root: %#x\n", stateRoot))
}
res.WriteString(blockGraffiti(ctx, graffiti))
return res.String(), nil
}
func outputBlockETH1Data(_ context.Context, eth1Data *phase0.ETH1Data) (string, error) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("Ethereum 1 deposit count: %d\n", eth1Data.DepositCount))
res.WriteString(fmt.Sprintf("Ethereum 1 deposit root: %#x\n", eth1Data.DepositRoot))
res.WriteString(fmt.Sprintf("Ethereum 1 block hash: %#x\n", eth1Data.BlockHash))
return res.String(), nil
}
func outputBlockAttestations(ctx context.Context, eth2Client eth2client.Service, verbose bool, attestations []*phase0.Attestation) (string, error) {
res := strings.Builder{}
validatorCommittees := make(map[phase0.Slot]map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
res.WriteString(fmt.Sprintf("Attestations: %d\n", len(attestations)))
if verbose {
beaconCommitteesProvider, isProvider := eth2Client.(eth2client.BeaconCommitteesProvider)
if isProvider {
for i, att := range attestations {
res.WriteString(fmt.Sprintf(" %d:\n", i))
// Fetch committees for this epoch if not already obtained.
committees, exists := validatorCommittees[att.Data.Slot]
if !exists {
response, err := beaconCommitteesProvider.BeaconCommittees(ctx, &api.BeaconCommitteesOpts{
State: fmt.Sprintf("%d", att.Data.Slot),
})
if err != nil {
// Failed to get it; create an empty committee to stop us continually attempting to re-fetch.
validatorCommittees[att.Data.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
} else {
for _, beaconCommittee := range response.Data {
if _, exists := validatorCommittees[beaconCommittee.Slot]; !exists {
validatorCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
}
validatorCommittees[beaconCommittee.Slot][beaconCommittee.Index] = beaconCommittee.Validators
}
}
committees = validatorCommittees[att.Data.Slot]
}
res.WriteString(fmt.Sprintf(" Committee index: %d\n", att.Data.Index))
res.WriteString(fmt.Sprintf(" Attesters: %d/%d\n", att.AggregationBits.Count(), att.AggregationBits.Len()))
res.WriteString(fmt.Sprintf(" Aggregation bits: %s\n", bitlistToString(att.AggregationBits)))
if _, exists := committees[att.Data.Index]; exists {
res.WriteString(fmt.Sprintf(" Attesting indices: %s\n", attestingIndices(att.AggregationBits, committees, []int{int(att.Data.Index)})))
}
res.WriteString(fmt.Sprintf(" Slot: %d\n", att.Data.Slot))
res.WriteString(fmt.Sprintf(" Beacon block root: %#x\n", att.Data.BeaconBlockRoot))
res.WriteString(fmt.Sprintf(" Source epoch: %d\n", att.Data.Source.Epoch))
res.WriteString(fmt.Sprintf(" Source root: %#x\n", att.Data.Source.Root))
res.WriteString(fmt.Sprintf(" Target epoch: %d\n", att.Data.Target.Epoch))
res.WriteString(fmt.Sprintf(" Target root: %#x\n", att.Data.Target.Root))
}
}
}
return res.String(), nil
}
func outputElectraBlockAttestations(ctx context.Context, eth2Client eth2client.Service, verbose bool, attestations []*electra.Attestation) (string, error) {
res := strings.Builder{}
validatorCommittees := make(map[phase0.Slot]map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
res.WriteString(fmt.Sprintf("Attestations: %d\n", len(attestations)))
if verbose {
beaconCommitteesProvider, isProvider := eth2Client.(eth2client.BeaconCommitteesProvider)
if isProvider {
for i, att := range attestations {
res.WriteString(fmt.Sprintf(" %d:\n", i))
// Fetch committees for this epoch if not already obtained.
committees, exists := validatorCommittees[att.Data.Slot]
if !exists {
response, err := beaconCommitteesProvider.BeaconCommittees(ctx, &api.BeaconCommitteesOpts{
State: fmt.Sprintf("%d", att.Data.Slot),
})
if err != nil {
// Failed to get it; create an empty committee to stop us continually attempting to re-fetch.
validatorCommittees[att.Data.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
} else {
for _, beaconCommittee := range response.Data {
if _, exists := validatorCommittees[beaconCommittee.Slot]; !exists {
validatorCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
}
validatorCommittees[beaconCommittee.Slot][beaconCommittee.Index] = beaconCommittee.Validators
}
}
committees = validatorCommittees[att.Data.Slot]
}
committeeIndices := make([]phase0.CommitteeIndex, 0)
for _, committeeIndex := range att.CommitteeBits.BitIndices() {
committeeIndices = append(committeeIndices, phase0.CommitteeIndex(committeeIndex))
}
res.WriteString(fmt.Sprintf(" Committee indices: %d\n", committeeIndices))
res.WriteString(fmt.Sprintf(" Attesters: %d/%d\n", att.AggregationBits.Count(), att.AggregationBits.Len()))
res.WriteString(fmt.Sprintf(" Aggregation bits: %s\n", bitlistToString(att.AggregationBits)))
if _, exists := committees[att.Data.Index]; exists {
res.WriteString(fmt.Sprintf(" Attesting indices: %s\n", attestingIndices(att.AggregationBits, committees, att.CommitteeBits.BitIndices())))
}
res.WriteString(fmt.Sprintf(" Slot: %d\n", att.Data.Slot))
res.WriteString(fmt.Sprintf(" Beacon block root: %#x\n", att.Data.BeaconBlockRoot))
res.WriteString(fmt.Sprintf(" Source epoch: %d\n", att.Data.Source.Epoch))
res.WriteString(fmt.Sprintf(" Source root: %#x\n", att.Data.Source.Root))
res.WriteString(fmt.Sprintf(" Target epoch: %d\n", att.Data.Target.Epoch))
res.WriteString(fmt.Sprintf(" Target root: %#x\n", att.Data.Target.Root))
}
}
}
return res.String(), nil
}
func outputBlockAttesterSlashings(ctx context.Context, eth2Client eth2client.Service, verbose bool, attesterSlashings []*phase0.AttesterSlashing) (string, error) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("Attester slashings: %d\n", len(attesterSlashings)))
if verbose {
for i, slashing := range attesterSlashings {
// Say what was slashed.
att1 := slashing.Attestation1
att2 := slashing.Attestation2
slashedIndices := intersection(att1.AttestingIndices, att2.AttestingIndices)
if len(slashedIndices) == 0 {
continue
}
res.WriteString(fmt.Sprintf(" %d:\n", i))
res.WriteString(fmt.Sprintln(" Slashed validators:"))
response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
State: "head",
Indices: slashedIndices,
})
if err != nil {
return "", errors.Wrap(err, "failed to obtain beacon committees")
}
for k, v := range response.Data {
res.WriteString(fmt.Sprintf(" %#x (%d)\n", v.Validator.PublicKey[:], k))
}
// Say what caused the slashing.
if att1.Data.Target.Epoch == att2.Data.Target.Epoch {
res.WriteString(fmt.Sprintf(" Double voted for same target epoch (%d):\n", att1.Data.Target.Epoch))
if !bytes.Equal(att1.Data.Target.Root[:], att2.Data.Target.Root[:]) {
res.WriteString(fmt.Sprintf(" Attestation 1 target epoch root: %#x\n", att1.Data.Target.Root))
res.WriteString(fmt.Sprintf(" Attestation 2target epoch root: %#x\n", att2.Data.Target.Root))
}
if !bytes.Equal(att1.Data.BeaconBlockRoot[:], att2.Data.BeaconBlockRoot[:]) {
res.WriteString(fmt.Sprintf(" Attestation 1 beacon block root: %#x\n", att1.Data.BeaconBlockRoot))
res.WriteString(fmt.Sprintf(" Attestation 2 beacon block root: %#x\n", att2.Data.BeaconBlockRoot))
}
} else if att1.Data.Source.Epoch < att2.Data.Source.Epoch &&
att1.Data.Target.Epoch > att2.Data.Target.Epoch {
res.WriteString(" Surround voted:\n")
res.WriteString(fmt.Sprintf(" Attestation 1 vote: %d->%d\n", att1.Data.Source.Epoch, att1.Data.Target.Epoch))
res.WriteString(fmt.Sprintf(" Attestation 2 vote: %d->%d\n", att2.Data.Source.Epoch, att2.Data.Target.Epoch))
}
}
}
return res.String(), nil
}
func outputElectraBlockAttesterSlashings(ctx context.Context, eth2Client eth2client.Service, verbose bool, attesterSlashings []*electra.AttesterSlashing) (string, error) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("Attester slashings: %d\n", len(attesterSlashings)))
if verbose {
for i, slashing := range attesterSlashings {
// Say what was slashed.
att1 := slashing.Attestation1
att2 := slashing.Attestation2
slashedIndices := intersection(att1.AttestingIndices, att2.AttestingIndices)
if len(slashedIndices) == 0 {
continue
}
res.WriteString(fmt.Sprintf(" %d:\n", i))
res.WriteString(fmt.Sprintln(" Slashed validators:"))
response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
State: "head",
Indices: slashedIndices,
})
if err != nil {
return "", errors.Wrap(err, "failed to obtain beacon committees")
}
for k, v := range response.Data {
res.WriteString(fmt.Sprintf(" %#x (%d)\n", v.Validator.PublicKey[:], k))
}
// Say what caused the slashing.
if att1.Data.Target.Epoch == att2.Data.Target.Epoch {
res.WriteString(fmt.Sprintf(" Double voted for same target epoch (%d):\n", att1.Data.Target.Epoch))
if !bytes.Equal(att1.Data.Target.Root[:], att2.Data.Target.Root[:]) {
res.WriteString(fmt.Sprintf(" Attestation 1 target epoch root: %#x\n", att1.Data.Target.Root))
res.WriteString(fmt.Sprintf(" Attestation 2target epoch root: %#x\n", att2.Data.Target.Root))
}
if !bytes.Equal(att1.Data.BeaconBlockRoot[:], att2.Data.BeaconBlockRoot[:]) {
res.WriteString(fmt.Sprintf(" Attestation 1 beacon block root: %#x\n", att1.Data.BeaconBlockRoot))
res.WriteString(fmt.Sprintf(" Attestation 2 beacon block root: %#x\n", att2.Data.BeaconBlockRoot))
}
} else if att1.Data.Source.Epoch < att2.Data.Source.Epoch &&
att1.Data.Target.Epoch > att2.Data.Target.Epoch {
res.WriteString(" Surround voted:\n")
res.WriteString(fmt.Sprintf(" Attestation 1 vote: %d->%d\n", att1.Data.Source.Epoch, att1.Data.Target.Epoch))
res.WriteString(fmt.Sprintf(" Attestation 2 vote: %d->%d\n", att2.Data.Source.Epoch, att2.Data.Target.Epoch))
}
}
}
return res.String(), nil
}
func outputBlockDeposits(_ context.Context, verbose bool, deposits []*phase0.Deposit) (string, error) {
res := strings.Builder{}
// Deposits.
res.WriteString(fmt.Sprintf("Deposits: %d\n", len(deposits)))
if verbose {
for i, deposit := range deposits {
data := deposit.Data
res.WriteString(fmt.Sprintf(" %d:\n", i))
res.WriteString(fmt.Sprintf(" Public key: %#x\n", data.PublicKey))
res.WriteString(fmt.Sprintf(" Amount: %s\n", string2eth.GWeiToString(uint64(data.Amount), true)))
res.WriteString(fmt.Sprintf(" Withdrawal credentials: %#x\n", data.WithdrawalCredentials))
res.WriteString(fmt.Sprintf(" Signature: %#x\n", data.Signature))
}
}
return res.String(), nil
}
func outputBlockVoluntaryExits(ctx context.Context, eth2Client eth2client.Service, verbose bool, voluntaryExits []*phase0.SignedVoluntaryExit) (string, error) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("Voluntary exits: %d\n", len(voluntaryExits)))
if verbose {
for i, voluntaryExit := range voluntaryExits {
res.WriteString(fmt.Sprintf(" %d:\n", i))
response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
State: "head",
Indices: []phase0.ValidatorIndex{voluntaryExit.Message.ValidatorIndex},
})
if err != nil {
res.WriteString(fmt.Sprintf(" Error: failed to obtain validators: %v\n", err))
} else {
res.WriteString(fmt.Sprintf(" Validator: %#x (%d)\n", response.Data[voluntaryExit.Message.ValidatorIndex].Validator.PublicKey, voluntaryExit.Message.ValidatorIndex))
res.WriteString(fmt.Sprintf(" Epoch: %d\n", voluntaryExit.Message.Epoch))
}
}
}
return res.String(), nil
}
func outputBlockBLSToExecutionChanges(ctx context.Context, eth2Client eth2client.Service, verbose bool, ops []*capella.SignedBLSToExecutionChange) (string, error) {
res := strings.Builder{}
res.WriteString(fmt.Sprintf("BLS to execution changes: %d\n", len(ops)))
if verbose {
for i, op := range ops {
res.WriteString(fmt.Sprintf(" %d:\n", i))
response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
State: "head",
Indices: []phase0.ValidatorIndex{op.Message.ValidatorIndex},
})
if err != nil {
res.WriteString(fmt.Sprintf(" Error: failed to obtain validators: %v\n", err))
} else {
res.WriteString(fmt.Sprintf(" Validator: %#x (%d)\n", response.Data[op.Message.ValidatorIndex].Validator.PublicKey, op.Message.ValidatorIndex))
res.WriteString(fmt.Sprintf(" BLS public key: %#x\n", op.Message.FromBLSPubkey))
res.WriteString(fmt.Sprintf(" Execution address: %s\n", op.Message.ToExecutionAddress.String()))
}
}
}
return res.String(), nil
}
func outputBlockSyncAggregate(ctx context.Context, eth2Client eth2client.Service, verbose bool, syncAggregate *altair.SyncAggregate, epoch phase0.Epoch) (string, error) {
res := strings.Builder{}
res.WriteString("Sync aggregate: ")
res.WriteString(fmt.Sprintf("%d/%d\n", syncAggregate.SyncCommitteeBits.Count(), syncAggregate.SyncCommitteeBits.Len()))
if verbose {
specProvider, isProvider := eth2Client.(eth2client.SpecProvider)
if isProvider {
specResponse, err := specProvider.Spec(ctx, &api.SpecOpts{})
if err == nil {
slotsPerEpoch := specResponse.Data["SLOTS_PER_EPOCH"].(uint64)
res.WriteString(" Contributions: ")
res.WriteString(bitvectorToString(syncAggregate.SyncCommitteeBits))
res.WriteString("\n")
syncCommitteesProvider, isProvider := eth2Client.(eth2client.SyncCommitteesProvider)
if isProvider {
syncCommitteeResponse, err := syncCommitteesProvider.SyncCommittee(ctx, &api.SyncCommitteeOpts{
State: strconv.FormatUint(uint64(epoch)*slotsPerEpoch, 10),
})
if err != nil {
res.WriteString(fmt.Sprintf(" Error: failed to obtain sync committee: %v\n", err))
} else {
res.WriteString(" Contributing validators:")
for i := range syncAggregate.SyncCommitteeBits.Len() {
if syncAggregate.SyncCommitteeBits.BitAt(i) {
res.WriteString(fmt.Sprintf(" %d", syncCommitteeResponse.Data.Validators[i]))
}
}
res.WriteString("\n")
}
}
}
}
}
return res.String(), nil
}
func outputCapellaBlockText(ctx context.Context, data *dataOut, signedBlock *capella.SignedBeaconBlock) (string, error) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate body root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Sync aggregate.
tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attestations.
tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBlockBLSToExecutionChanges(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.BLSToExecutionChanges)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputCapellaBlockExecutionPayload(ctx, data.verbose, signedBlock.Message.Body.ExecutionPayload)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputDenebBlockText(ctx context.Context,
data *dataOut,
signedBlock *deneb.SignedBeaconBlock,
blobs []*deneb.BlobSidecar,
) (
string,
error,
) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate body root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Sync aggregate.
tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attestations.
tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBlockBLSToExecutionChanges(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.BLSToExecutionChanges)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputDenebBlockExecutionPayload(ctx, data.verbose, signedBlock.Message.Body.ExecutionPayload)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBlobInfo(ctx, data.verbose, signedBlock.Message.Body.BlobKZGCommitments, blobs)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputElectraBlockText(ctx context.Context,
data *dataOut,
signedBlock *electra.SignedBeaconBlock,
blobs []*deneb.BlobSidecar,
) (
string,
error,
) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate body root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Sync aggregate.
tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attestations.
tmp, err = outputElectraBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputElectraBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBlockBLSToExecutionChanges(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.BLSToExecutionChanges)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputDenebBlockExecutionPayload(ctx, data.verbose, signedBlock.Message.Body.ExecutionPayload)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputElectraBlockExecutionRequests(ctx, data.verbose, signedBlock.Message.Body.ExecutionRequests)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBlobInfo(ctx, data.verbose, signedBlock.Message.Body.BlobKZGCommitments, blobs)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputBellatrixBlockText(ctx context.Context, data *dataOut, signedBlock *bellatrix.SignedBeaconBlock) (string, error) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate body root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Sync aggregate.
tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attestations.
tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
tmp, err = outputBellatrixBlockExecutionPayload(ctx, data.verbose, signedBlock.Message.Body.ExecutionPayload)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputAltairBlockText(ctx context.Context, data *dataOut, signedBlock *altair.SignedBeaconBlock) (string, error) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate body root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Sync aggregate.
tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attestations.
tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputPhase0BlockText(ctx context.Context, data *dataOut, signedBlock *phase0.SignedBeaconBlock) (string, error) {
if signedBlock == nil {
return "", errors.New("no block supplied")
}
body := signedBlock.Message.Body
res := strings.Builder{}
// General info.
blockRoot, err := signedBlock.Message.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to obtain block root")
}
bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
if err != nil {
return "", errors.Wrap(err, "failed to generate block root")
}
tmp, err := outputBlockGeneral(ctx,
data.verbose,
signedBlock.Message.Slot,
signedBlock.Message.ProposerIndex,
blockRoot,
bodyRoot,
signedBlock.Message.ParentRoot,
signedBlock.Message.StateRoot,
signedBlock.Message.Body.Graffiti[:],
data.genesisTime,
data.slotDuration,
data.slotsPerEpoch)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Eth1 data.
if data.verbose {
tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
if err != nil {
return "", err
}
res.WriteString(tmp)
}
// Attestations.
tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Attester slashings.
tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
if err != nil {
return "", err
}
res.WriteString(tmp)
res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
// Add verbose proposer slashings.
tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
if err != nil {
return "", err
}
res.WriteString(tmp)
// Voluntary exits.
tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
if err != nil {
return "", err
}
res.WriteString(tmp)
return res.String(), nil
}
func outputCapellaBlockExecutionPayload(_ context.Context,
verbose bool,
payload *capella.ExecutionPayload,
) (
string,
error,
) {
if payload == nil {
return "", nil
}
// If the block number is 0 then we're before the merge.
if payload.BlockNumber == 0 {
return "", nil
}
res := strings.Builder{}
if !verbose {
res.WriteString("Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
res.WriteString("Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
} else {
res.WriteString("Execution payload:\n")
res.WriteString(" Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
baseFeePerGasBEBytes := make([]byte, len(payload.BaseFeePerGas))
for i := range 32 {
baseFeePerGasBEBytes[i] = payload.BaseFeePerGas[32-1-i]
}
baseFeePerGas := new(big.Int).SetBytes(baseFeePerGasBEBytes)
res.WriteString(" Base fee per gas: ")
res.WriteString(string2eth.WeiToString(baseFeePerGas, true))
res.WriteString("\n Block hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.BlockHash))
res.WriteString(" Parent hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ParentHash))
res.WriteString(" Fee recipient: ")
res.WriteString(payload.FeeRecipient.String())
res.WriteString(" Gas limit: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasLimit))
res.WriteString(" Gas used: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasUsed))
res.WriteString(" Timestamp: ")
res.WriteString(fmt.Sprintf("%s (%d)\n", time.Unix(int64(payload.Timestamp), 0).String(), payload.Timestamp))
res.WriteString(" Prev RANDAO: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.PrevRandao))
res.WriteString(" Receipts root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ReceiptsRoot))
res.WriteString(" State root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.StateRoot))
res.WriteString(" Extra data: ")
if utf8.Valid(payload.ExtraData) {
res.WriteString(fmt.Sprintf("%s\n", string(payload.ExtraData)))
} else {
res.WriteString(fmt.Sprintf("%#x\n", payload.ExtraData))
}
res.WriteString(" Logs bloom: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.LogsBloom))
res.WriteString(" Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
res.WriteString(" Withdrawals: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Withdrawals)))
}
return res.String(), nil
}
func outputDenebBlockExecutionPayload(_ context.Context,
verbose bool,
payload *deneb.ExecutionPayload,
) (
string,
error,
) {
if payload == nil {
return "", nil
}
// If the block number is 0 then we're before the merge.
if payload.BlockNumber == 0 {
return "", nil
}
res := strings.Builder{}
if !verbose {
res.WriteString("Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
res.WriteString("Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
} else {
res.WriteString("Execution payload:\n")
res.WriteString(" Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
res.WriteString(" Base fee per gas: ")
res.WriteString(string2eth.WeiToString(payload.BaseFeePerGas.ToBig(), true))
res.WriteString("\n Block hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.BlockHash))
res.WriteString(" Parent hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ParentHash))
res.WriteString(" Fee recipient: ")
res.WriteString(payload.FeeRecipient.String())
res.WriteString(" Gas limit: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasLimit))
res.WriteString(" Gas used: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasUsed))
res.WriteString(" Timestamp: ")
res.WriteString(fmt.Sprintf("%s (%d)\n", time.Unix(int64(payload.Timestamp), 0).String(), payload.Timestamp))
res.WriteString(" Prev RANDAO: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.PrevRandao))
res.WriteString(" Receipts root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ReceiptsRoot))
res.WriteString(" State root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.StateRoot))
res.WriteString(" Extra data: ")
if utf8.Valid(payload.ExtraData) {
res.WriteString(fmt.Sprintf("%s\n", string(payload.ExtraData)))
} else {
res.WriteString(fmt.Sprintf("%#x\n", payload.ExtraData))
}
res.WriteString(" Logs bloom: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.LogsBloom))
res.WriteString(" Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
res.WriteString(" Withdrawals: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Withdrawals)))
res.WriteString(" Excess blob gas: ")
res.WriteString(fmt.Sprintf("%d\n", payload.ExcessBlobGas))
}
return res.String(), nil
}
func outputElectraBlockExecutionRequests(_ context.Context,
verbose bool,
executionRequests *electra.ExecutionRequests,
) (
string,
error,
) {
if executionRequests == nil {
return "", nil
}
res := strings.Builder{}
res.WriteString("Deposit requests: ")
res.WriteString(fmt.Sprintf("%d\n", len(executionRequests.Deposits)))
if verbose {
for i, deposit := range executionRequests.Deposits {
res.WriteString(fmt.Sprintf("%3d:\n", i))
res.WriteString(fmt.Sprintf(" Public key: %#x\n", deposit.Pubkey))
res.WriteString(fmt.Sprintf(" Withdrawal credentials: %#x\n", deposit.WithdrawalCredentials))
res.WriteString(fmt.Sprintf(" Amount: %s\n", string2eth.GWeiToString(uint64(deposit.Amount), true)))
}
}
res.WriteString("Withdrawal requests: ")
res.WriteString(fmt.Sprintf("%d\n", len(executionRequests.Withdrawals)))
if verbose {
for i, withdrawal := range executionRequests.Withdrawals {
res.WriteString(fmt.Sprintf("%3d:\n", i))
res.WriteString(fmt.Sprintf(" Source address: %#x\n", withdrawal.SourceAddress))
res.WriteString(fmt.Sprintf(" Validator public key: %#x\n", withdrawal.ValidatorPubkey))
res.WriteString(fmt.Sprintf(" Amount: %s\n", string2eth.GWeiToString(uint64(withdrawal.Amount), true)))
}
}
res.WriteString("Consolidation requests: ")
res.WriteString(fmt.Sprintf("%d\n", len(executionRequests.Consolidations)))
if verbose {
for i, consolidation := range executionRequests.Consolidations {
res.WriteString(fmt.Sprintf("%3d:\n", i))
res.WriteString(fmt.Sprintf(" Source address: %#x\n", consolidation.SourceAddress))
res.WriteString(fmt.Sprintf(" Source public key: %#x\n", consolidation.SourcePubkey))
res.WriteString(fmt.Sprintf(" Target public key: %#x\n", consolidation.TargetPubkey))
}
}
return res.String(), nil
}
func outputBlobInfo(_ context.Context,
verbose bool,
commitments []deneb.KZGCommitment,
blobs []*deneb.BlobSidecar,
) (
string,
error,
) {
res := strings.Builder{}
if len(blobs) == 0 && len(commitments) > 0 {
res.WriteString(fmt.Sprintf("Blobs: %d (but no blobs obtained from the beacon node)\n", len(commitments)))
} else {
res.WriteString(fmt.Sprintf("Blobs: %d\n", len(blobs)))
if verbose {
for i, blob := range blobs {
res.WriteString(fmt.Sprintf("%3d:\n", i))
res.WriteString(fmt.Sprintf(" KZG proof: %s\n", blob.KZGProof.String()))
res.WriteString(fmt.Sprintf(" KZG commitment: %s\n", blob.KZGCommitment.String()))
}
}
}
return res.String(), nil
}
func outputBellatrixBlockExecutionPayload(_ context.Context,
verbose bool,
payload *bellatrix.ExecutionPayload,
) (
string,
error,
) {
if payload == nil {
return "", nil
}
// If the block number is 0 then we're before the merge.
if payload.BlockNumber == 0 {
return "", nil
}
res := strings.Builder{}
if !verbose {
res.WriteString("Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
res.WriteString("Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
} else {
res.WriteString("Execution payload:\n")
res.WriteString(" Execution block number: ")
res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
baseFeePerGasBEBytes := make([]byte, len(payload.BaseFeePerGas))
for i := range 32 {
baseFeePerGasBEBytes[i] = payload.BaseFeePerGas[32-1-i]
}
baseFeePerGas := new(big.Int).SetBytes(baseFeePerGasBEBytes)
res.WriteString(" Base fee per gas: ")
res.WriteString(string2eth.WeiToString(baseFeePerGas, true))
res.WriteString("\n Block hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.BlockHash))
res.WriteString(" Parent hash: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ParentHash))
res.WriteString(" Fee recipient: ")
res.WriteString(payload.FeeRecipient.String())
res.WriteString(" Gas limit: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasLimit))
res.WriteString(" Gas used: ")
res.WriteString(fmt.Sprintf("%d\n", payload.GasUsed))
res.WriteString(" Timestamp: ")
res.WriteString(fmt.Sprintf("%s (%d)\n", time.Unix(int64(payload.Timestamp), 0).String(), payload.Timestamp))
res.WriteString(" Prev RANDAO: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.PrevRandao))
res.WriteString(" Receipts root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ReceiptsRoot))
res.WriteString(" State root: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.StateRoot))
res.WriteString(" Extra data: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.ExtraData))
res.WriteString(" Logs bloom: ")
res.WriteString(fmt.Sprintf("%#x\n", payload.LogsBloom))
res.WriteString(" Transactions: ")
res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
}
return res.String(), nil
}
// intersection returns a list of items common between the two sets.
func intersection(set1 []uint64, set2 []uint64) []phase0.ValidatorIndex {
sort.Slice(set1, func(i, j int) bool { return set1[i] < set1[j] })
sort.Slice(set2, func(i, j int) bool { return set2[i] < set2[j] })
res := make([]phase0.ValidatorIndex, 0)
set1Pos := 0
set2Pos := 0
for set1Pos < len(set1) && set2Pos < len(set2) {
switch {
case set1[set1Pos] < set2[set2Pos]:
set1Pos++
case set2[set2Pos] < set1[set1Pos]:
set2Pos++
default:
res = append(res, phase0.ValidatorIndex(set1[set1Pos]))
set1Pos++
set2Pos++
}
}
return res
}
func bitlistToString(input bitfield.Bitlist) string {
bits := int(input.Len())
res := ""
for i := range bits {
if input.BitAt(uint64(i)) {
res = fmt.Sprintf("%s✓", res)
} else {
res = fmt.Sprintf("%s✕", res)
}
if i%8 == 7 {
res = fmt.Sprintf("%s ", res)
}
}
return strings.TrimSpace(res)
}
func bitvectorToString(input bitfield.Bitvector512) string {
bits := int(input.Len())
res := strings.Builder{}
for i := range bits {
if input.BitAt(uint64(i)) {
res.WriteString("✓")
} else {
res.WriteString("✕")
}
if i%8 == 7 && i != bits-1 {
res.WriteString(" ")
}
}
return res.String()
}
func attestingIndices(input bitfield.Bitlist,
committees map[phase0.CommitteeIndex][]phase0.ValidatorIndex,
includedCommittees []int,
) string {
bits := int(input.Len())
// Build up the validator list from the included committees.
validatorIndices := make([]phase0.ValidatorIndex, 0)
for _, committeeIndex := range includedCommittees {
validatorIndices = append(validatorIndices, committees[phase0.CommitteeIndex(committeeIndex)]...)
}
res := strings.Builder{}
for i := range bits {
if input.BitAt(uint64(i)) {
// Work out the committee and offset given the index.
res.WriteString(fmt.Sprintf("%d ", validatorIndices[i]))
}
}
return strings.TrimSpace(res.String())
}
func blockGraffiti(_ context.Context, graffiti []byte) string {
if len(graffiti) == 0 || hex.EncodeToString(graffiti) == "0000000000000000000000000000000000000000000000000000000000000000" {
// No graffiti.
return ""
}
// Remove any trailing null characters.
graffiti = bytes.TrimRight(graffiti, "\u0000")
if !utf8.Valid(graffiti) {
// Graffiti is not valid UTF-8, return hex.
return fmt.Sprintf("Graffiti: %#x\n", graffiti)
}
// See if there is client identification information present in the graffiti.
// The client identification will always be the last entry in the graffiti, with a space beforehand.
parts := bytes.Split(graffiti, []byte{' '})
// Consensus and execution client values come from
// https://github.com/ethereum/execution-apis/blob/main/src/engine/identification.md
consensusClients := map[string]string{
"GR": "grandine",
"LH": "lighthouse",
"LS": "lodestar",
"NB": "nimbus",
"PM": "prysm",
"TK": "teku",
}
consensusRegex := regexp.MustCompile(`(GR|LH|LS|NB|PM|TK)([0-9a-f]*)`)
consensusData := consensusRegex.Find(parts[len(parts)-1])
executionClients := map[string]string{
"BU": "besu",
"EG": "erigon",
"EJ": "ethereumJS",
"GE": "go-ethereum",
"NM": "nethermind",
"RH": "reth",
"TR": "trin-execution",
}
executionRegex := regexp.MustCompile(`(BU|EG|EJ|GE|NM|RH|TR)([0-9a-f]*)`)
executionData := executionRegex.Find(parts[len(parts)-1])
if len(consensusData) == 0 && len(executionData) == 0 {
// There is no identifier; return the graffiti as-is.
return fmt.Sprintf("Graffiti: %s\n", string(graffiti))
}
res := strings.Builder{}
truncatedGraffiti := bytes.Join(parts[0:len(parts)-1], []byte(" "))
if len(truncatedGraffiti) > 0 {
res.WriteString(fmt.Sprintf("Graffiti: %s\n", string(truncatedGraffiti)))
}
if len(consensusData) > 0 {
consensusClient := consensusData[0:2]
consensusHash := ""
if len(consensusData) > 2 {
consensusHash = string(consensusData[2:])
}
res.WriteString("Consensus client: ")
res.WriteString(consensusClients[string(consensusClient)])
if consensusHash != "" {
res.WriteString(" (version hash ")
res.WriteString(consensusHash)
res.WriteString(")")
}
res.WriteString("\n")
}
if len(executionData) > 0 {
executionClient := executionData[0:2]
executionHash := ""
if len(executionData) > 2 {
executionHash = string(executionData[2:])
}
res.WriteString("Execution client: ")
res.WriteString(executionClients[string(executionClient)])
if executionHash != "" {
res.WriteString(" (version hash ")
res.WriteString(executionHash)
res.WriteString(")")
}
res.WriteString("\n")
}
return res.String()
}