mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2025-01-17 23:38:46 +00:00
cc3c3a0c54
* initial commit * Merge branch 'master' of https://github.com/prysmaticlabs/geth-sharding into rateLimiter * finally * add mutex * rate limiter for all rpc reqs * remove recursive readlocks * spelling * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * fix all tests * fix all tests * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter * Merge refs/heads/master into rateLimiter
68 lines
2.0 KiB
Go
68 lines
2.0 KiB
Go
package sync
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import (
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"context"
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libp2pcore "github.com/libp2p/go-libp2p-core"
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"github.com/libp2p/go-libp2p-core/helpers"
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"github.com/libp2p/go-libp2p-core/mux"
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"github.com/libp2p/go-libp2p-core/peer"
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"github.com/pkg/errors"
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"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
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pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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)
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// metaDataHandler reads the incoming metadata rpc request from the peer.
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func (s *Service) metaDataHandler(ctx context.Context, msg interface{}, stream libp2pcore.Stream) error {
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defer func() {
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if err := stream.Close(); err != nil {
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log.WithError(err).Error("Failed to close stream")
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}
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}()
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ctx, cancel := context.WithTimeout(ctx, ttfbTimeout)
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defer cancel()
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SetRPCStreamDeadlines(stream)
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if err := s.rateLimiter.validateRequest(stream, 1); err != nil {
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return err
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}
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s.rateLimiter.add(stream, 1)
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if _, err := stream.Write([]byte{responseCodeSuccess}); err != nil {
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return err
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}
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_, err := s.p2p.Encoding().EncodeWithMaxLength(stream, s.p2p.Metadata())
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return err
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}
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func (s *Service) sendMetaDataRequest(ctx context.Context, id peer.ID) (*pb.MetaData, error) {
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ctx, cancel := context.WithTimeout(ctx, respTimeout)
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defer cancel()
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stream, err := s.p2p.Send(ctx, new(interface{}), p2p.RPCMetaDataTopic, id)
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if err != nil {
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return nil, err
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}
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// we close the stream outside of `send` because
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// metadata requests send no payload, so closing the
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// stream early leads it to a reset.
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defer func() {
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if err := helpers.FullClose(stream); err != nil && err.Error() != mux.ErrReset.Error() {
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log.WithError(err).Debugf("Failed to reset stream for protocol %s", stream.Protocol())
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}
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}()
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code, errMsg, err := ReadStatusCode(stream, s.p2p.Encoding())
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if err != nil {
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return nil, err
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}
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if code != 0 {
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s.p2p.Peers().IncrementBadResponses(stream.Conn().RemotePeer())
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return nil, errors.New(errMsg)
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}
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msg := new(pb.MetaData)
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if err := s.p2p.Encoding().DecodeWithMaxLength(stream, msg); err != nil {
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return nil, err
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}
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return msg, nil
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}
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