mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 12:57:18 +00:00
78bf39aff7
* checkpoint * checkpoint * varint prefix for ssz * move the encoding API around a little bit to support reader writer * add a simple test for the happy path subscribe * move wait timeout to testutil * Add inverted topic mapping * Add varint prefixing to ssz network encoder * fix spacing * fix comments * fix comments * make anon methods more clear * clean up log fields * move topic mapping, reformat TODOs, get ready for brutal team review * lint * lint * lint * Update beacon-chain/p2p/gossip_topic_mappings.go Co-Authored-By: Nishant Das <nishdas93@gmail.com> * PR feedback * PR feedback * PR feedback * PR feedback * PR feedback * basic test with a hardcoded fork choice * updated beacon config to use genesis fork version * checkpoint on hello handler * create a testing db method that can be used with the new database interface * lint * lint * PR feedback * checkpoint * passing tests * comments, errors * comments, errors * remove swarm * Update WORKSPACE * Update WORKSPACE * merge * lint * lint * touch * touch * imports
71 lines
2.3 KiB
Go
71 lines
2.3 KiB
Go
package sync
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import (
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"bytes"
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"context"
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"time"
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"github.com/gogo/protobuf/proto"
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libp2pcore "github.com/libp2p/go-libp2p-core"
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pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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"github.com/prysmaticlabs/prysm/shared/params"
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)
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// helloRPCHandler reads the incoming Hello RPC from the peer and responds with our version of a hello message.
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// This handler will disconnect any peer that does not match our fork version.
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func (r *RegularSync) helloRPCHandler(ctx context.Context, msg proto.Message, stream libp2pcore.Stream) error {
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defer stream.Close()
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ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
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defer cancel()
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setRPCStreamDeadlines(stream)
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log := log.WithField("rpc", "hello")
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m := msg.(*pb.Hello)
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if !bytes.Equal(params.BeaconConfig().GenesisForkVersion, m.ForkVersion) {
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resp, err := r.generateErrorResponse(responseCodeInvalidRequest, errWrongForkVersion.Error())
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if err != nil {
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log.WithError(err).Error("Failed to generate a response error")
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} else {
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if _, err := stream.Write(resp); err != nil {
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log.WithError(err).Errorf("Failed to write to stream")
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}
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}
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stream.Close() // Close before disconnecting.
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// Add a short delay to allow the stream to flush before closing the connection.
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// There is still a chance that the peer won't receive the message.
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time.Sleep(50 * time.Millisecond)
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if err := r.p2p.Disconnect(stream.Conn().RemotePeer()); err != nil {
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log.WithError(err).Error("Failed to disconnect from peer")
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}
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return errWrongForkVersion
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}
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r.p2p.AddHandshake(stream.Conn().RemotePeer(), m)
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state, err := r.db.HeadState(ctx)
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if err != nil {
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log.WithError(err).Error("Failed to get head state")
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resp, err := r.generateErrorResponse(responseCodeServerError, genericError)
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if _, err := stream.Write(resp); err != nil {
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log.WithError(err).Error("Failed to write to stream")
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}
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return err
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}
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resp := &pb.Hello{
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ForkVersion: params.BeaconConfig().GenesisForkVersion,
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FinalizedRoot: state.FinalizedCheckpoint.Root,
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FinalizedEpoch: state.FinalizedCheckpoint.Epoch,
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HeadRoot: state.BlockRoots[state.Slot%params.BeaconConfig().SlotsPerHistoricalRoot],
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HeadSlot: state.Slot,
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}
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if _, err := stream.Write([]byte{responseCodeSuccess}); err != nil {
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log.WithError(err).Error("Failed to write to stream")
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}
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_, err = r.p2p.Encoding().Encode(stream, resp)
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return err
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}
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