mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
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41c8ff4c1b
* updates coinciding vars * renames receiver in sync service * Merge branch 'master' into sync-rename-receiver
37 lines
981 B
Go
37 lines
981 B
Go
package sync
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/gogo/protobuf/proto"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
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)
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func (s *Service) decodePubsubMessage(msg *pubsub.Message) (proto.Message, error) {
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if msg == nil || msg.TopicIDs == nil || len(msg.TopicIDs) == 0 {
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return nil, errors.New("nil pubsub message")
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}
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topic := msg.TopicIDs[0]
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topic = strings.TrimSuffix(topic, s.p2p.Encoding().ProtocolSuffix())
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topic = s.replaceForkDigest(topic)
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base, ok := p2p.GossipTopicMappings[topic]
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if !ok {
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return nil, fmt.Errorf("no message mapped for topic %s", topic)
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}
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m := proto.Clone(base)
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if err := s.p2p.Encoding().DecodeGossip(msg.Data, m); err != nil {
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return nil, err
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}
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return m, nil
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}
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// Replaces our fork digest with the formatter.
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func (s *Service) replaceForkDigest(topic string) string {
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subStrings := strings.Split(topic, "/")
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subStrings[2] = "%x"
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return strings.Join(subStrings, "/")
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}
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