mirror of https://github.com/certusone/vouch.git
92 lines
3.3 KiB
Go
92 lines
3.3 KiB
Go
// Copyright © 2020 Attestant Limited.
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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 multinode
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import (
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"context"
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"encoding/json"
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"strings"
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"sync"
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"time"
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eth2client "github.com/attestantio/go-eth2-client"
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"github.com/attestantio/go-eth2-client/spec/phase0"
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"github.com/pkg/errors"
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"golang.org/x/sync/semaphore"
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)
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// SubmitAttestations submits a batch of attestations.
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func (s *Service) SubmitAttestations(ctx context.Context, attestations []*phase0.Attestation) error {
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if len(attestations) == 0 {
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return errors.New("no attestations supplied")
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}
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sem := semaphore.NewWeighted(s.processConcurrency)
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var wg sync.WaitGroup
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for name, submitter := range s.attestationsSubmitters {
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wg.Add(1)
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go func(ctx context.Context,
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sem *semaphore.Weighted,
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wg *sync.WaitGroup,
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name string,
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submitter eth2client.AttestationsSubmitter,
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) {
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defer wg.Done()
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log := log.With().Str("beacon_node_address", name).Uint64("slot", uint64(attestations[0].Data.Slot)).Logger()
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if err := sem.Acquire(ctx, 1); err != nil {
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log.Error().Err(err).Msg("Failed to acquire semaphore")
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return
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}
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defer sem.Release(1)
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serverType, address := s.serviceInfo(ctx, submitter)
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started := time.Now()
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err := submitter.SubmitAttestations(ctx, attestations)
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s.clientMonitor.ClientOperation(address, "submit attestations", err == nil, time.Since(started))
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if err != nil {
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switch {
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case serverType == "lighthouse" && strings.Contains(err.Error(), "PriorAttestationKnown"):
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// Lighthouse rejects duplicate attestations. It is possible that an attestation we sent
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// to another node already propagated to this node, so ignore the error.
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log.Trace().Msg("Node already knows about attestation; ignored")
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case serverType == "lighthouse" && strings.Contains(err.Error(), "UnknownHeadBlock"):
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// Lighthouse rejects an attestation for a block that is not its current head. It is possible
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// that the node is just behind, and we can't do anything about it anyway at this point having
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// already signed an attestation for this slot, so ignore the error.
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log.Debug().Err(err).Msg("Node does not know head block; rejected")
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case serverType == "lighthouse" && strings.Contains(err.Error(), "InvalidSignature"):
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data, err2 := json.Marshal(attestations)
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if err2 != nil {
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log.Error().Err(err).Msg("Failed to marshal JSON")
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} else {
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log.Warn().Err(err).Str("data", string(data)).Msg("Invalid signature!")
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}
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default:
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log.Warn().Err(err).Msg("Failed to submit attestation")
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}
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} else {
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data, err := json.Marshal(attestations)
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if err != nil {
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log.Error().Err(err).Msg("Failed to marshal JSON")
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} else {
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log.Trace().Str("data", string(data)).Msg("Submitted attestations")
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}
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}
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}(ctx, sem, &wg, name, submitter)
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}
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wg.Wait()
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return nil
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}
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