github.com/aergoio/aergo@v1.3.1/p2p/subproto/bp.go (about)

     1  /*
     2   * @file
     3   * @copyright defined in aergo/LICENSE.txt
     4   */
     5  
     6  package subproto
     7  
     8  import (
     9  	"github.com/aergoio/aergo-lib/log"
    10  	"github.com/aergoio/aergo/internal/enc"
    11  	"github.com/aergoio/aergo/p2p/p2pcommon"
    12  	"github.com/aergoio/aergo/p2p/p2putil"
    13  	"github.com/aergoio/aergo/types"
    14  )
    15  
    16  type blockProducedNoticeHandler struct {
    17  	BaseMsgHandler
    18  }
    19  
    20  var _ p2pcommon.MessageHandler = (*blockProducedNoticeHandler)(nil)
    21  
    22  // newNewBlockNoticeHandler creates handler for NewBlockNotice
    23  func NewBlockProducedNoticeHandler(pm p2pcommon.PeerManager, peer p2pcommon.RemotePeer, logger *log.Logger, actor p2pcommon.ActorService, sm p2pcommon.SyncManager) *blockProducedNoticeHandler {
    24  	bh := &blockProducedNoticeHandler{BaseMsgHandler: BaseMsgHandler{protocol: p2pcommon.BlockProducedNotice, pm: pm, sm: sm, peer: peer, actor: actor, logger: logger}}
    25  	return bh
    26  }
    27  
    28  func (bh *blockProducedNoticeHandler) ParsePayload(rawbytes []byte) (p2pcommon.MessageBody, error) {
    29  	return p2putil.UnmarshalAndReturn(rawbytes, &types.BlockProducedNotice{})
    30  }
    31  
    32  func (bh *blockProducedNoticeHandler) Handle(msg p2pcommon.Message, msgBody p2pcommon.MessageBody) {
    33  	remotePeer := bh.peer
    34  	data := msgBody.(*types.BlockProducedNotice)
    35  	if data.Block == nil || len(data.Block.Hash) == 0 {
    36  		bh.logger.Info().Str(p2putil.LogPeerName, remotePeer.Name()).Msg("invalid blockProduced notice. block is null")
    37  		return
    38  	}
    39  	// remove to verbose log
    40  	p2putil.DebugLogReceive(bh.logger, bh.protocol, msg.ID().String(), remotePeer,data)
    41  	
    42  	// lru cache can accept hashable key
    43  	block := data.Block
    44  	if _, err := types.ParseToBlockID(data.GetBlock().GetHash()); err != nil {
    45  		// TODO add penalty score
    46  		bh.logger.Info().Str(p2putil.LogPeerName, remotePeer.Name()).Str("hash", enc.ToString(data.GetBlock().GetHash())).Msg("malformed blockHash")
    47  		return
    48  	}
    49  	// block by blockProduced notice must be new fresh block
    50  	remotePeer.UpdateLastNotice(data.GetBlock().GetHash(), data.BlockNo)
    51  	bh.sm.HandleBlockProducedNotice(bh.peer, block)
    52  }