The core protocol of WoopChain
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woop/consensus/consensus_viewchange_msg.go

94 lines
3.0 KiB

package consensus
import (
"github.com/harmony-one/harmony/api/proto"
msg_pb "github.com/harmony-one/harmony/api/proto/message"
bls_cosi "github.com/harmony-one/harmony/crypto/bls"
"github.com/harmony-one/harmony/internal/utils"
)
// construct the view change message
func (consensus *Consensus) constructViewChangeMessage() []byte {
message := &msg_pb.Message{
ServiceType: msg_pb.ServiceType_CONSENSUS,
Type: msg_pb.MessageType_VIEWCHANGE,
Request: &msg_pb.Message_Viewchange{
Viewchange: &msg_pb.ViewChangeRequest{},
},
}
vcMsg := message.GetViewchange()
vcMsg.ViewId = consensus.mode.GetViewID()
vcMsg.BlockNum = consensus.blockNum
// sender address
vcMsg.SenderPubkey = consensus.PubKey.Serialize()
// next leader key already updated
vcMsg.LeaderPubkey = consensus.LeaderPubKey.Serialize()
preparedMsgs := consensus.pbftLog.GetMessagesByTypeSeqHash(msg_pb.MessageType_PREPARED, consensus.blockNum, consensus.blockHash)
if len(preparedMsgs) > 1 {
utils.GetLogInstance().Warn("constructViewChangeMessage got more than 1 prepared message", "blockNum", consensus.blockNum, "viewID", consensus.viewID)
}
var msgToSign []byte
if len(preparedMsgs) == 0 {
msgToSign = NIL // m2 type message
vcMsg.Payload = []byte{}
} else {
// m1 type message
msgToSign = append(preparedMsgs[0].BlockHash[:], preparedMsgs[0].Payload...)
vcMsg.Payload = append(msgToSign[:0:0], msgToSign...)
}
sign := consensus.priKey.SignHash(msgToSign)
if sign != nil {
vcMsg.ViewchangeSig = sign.Serialize()
}
marshaledMessage, err := consensus.signAndMarshalConsensusMessage(message)
if err != nil {
utils.GetLogInstance().Error("constructViewChangeMessage failed to sign and marshal the viewchange message", "error", err)
}
return proto.ConstructConsensusMessage(marshaledMessage)
}
// new leader construct newview message
func (consensus *Consensus) constructNewViewMessage() []byte {
message := &msg_pb.Message{
ServiceType: msg_pb.ServiceType_CONSENSUS,
Type: msg_pb.MessageType_NEWVIEW,
Request: &msg_pb.Message_Viewchange{
Viewchange: &msg_pb.ViewChangeRequest{},
},
}
vcMsg := message.GetViewchange()
vcMsg.ViewId = consensus.mode.GetViewID()
vcMsg.BlockNum = consensus.blockNum
// sender address
vcMsg.SenderPubkey = consensus.PubKey.Serialize()
// m1 type message
sig1arr := consensus.GetBhpSigsArray()
if len(sig1arr) > 0 {
m1Sig := bls_cosi.AggregateSig(sig1arr)
vcMsg.M1Aggsigs = m1Sig.Serialize()
vcMsg.M1Bitmap = consensus.bhpBitmap.Bitmap
vcMsg.Payload = consensus.m1Payload
}
sig2arr := consensus.GetNilSigsArray()
if len(sig2arr) > 0 {
m2Sig := bls_cosi.AggregateSig(sig2arr)
vcMsg.M2Aggsigs = m2Sig.Serialize()
vcMsg.M2Bitmap = consensus.nilBitmap.Bitmap
}
marshaledMessage, err := consensus.signAndMarshalConsensusMessage(message)
if err != nil {
utils.GetLogInstance().Error("constructNewViewMessage failed to sign and marshal the new view message", "error", err)
}
return proto.ConstructConsensusMessage(marshaledMessage)
}