frostfs-node/pkg/innerring/processors/netmap/process_peers.go

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package netmap
import (
"encoding/hex"
"sort"
"strings"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
netmapEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/netmap"
"go.uber.org/zap"
)
// Process add peer notification by sanity check of new node
// local epoch timer.
func (np *Processor) processAddPeer(ev netmapEvent.AddPeer) {
if !np.alphabetState.IsAlphabet() {
np.log.Info("non alphabet mode, ignore new peer notification")
return
}
// unmarshal node info
nodeInfo := netmap.NewNodeInfo()
if err := nodeInfo.Unmarshal(ev.Node()); err != nil {
// it will be nice to have tx id at event structure to log it
np.log.Warn("can't parse network map candidate")
return
}
// validate and update node info
err := np.nodeValidator.VerifyAndUpdate(nodeInfo)
if err != nil {
np.log.Warn("could not verify and update information about network map candidate",
zap.String("error", err.Error()),
)
return
}
// sort attributes to make it consistent
a := nodeInfo.Attributes()
sort.Slice(a, func(i, j int) bool {
switch strings.Compare(a[i].Key(), a[j].Key()) {
case -1:
return true
case 1:
return false
default:
return a[i].Value() < a[j].Value()
}
})
nodeInfo.SetAttributes(a...)
keyString := hex.EncodeToString(nodeInfo.PublicKey())
exists := np.netmapSnapshot.touch(keyString, np.epochState.EpochCounter())
if !exists {
np.log.Info("approving network map candidate",
zap.String("key", keyString))
if nr := ev.NotaryRequest(); nr != nil {
// notary event case
var nodeInfoBinary []byte
nodeInfoBinary, err = nodeInfo.Marshal()
if err != nil {
np.log.Warn("could not marshal updated network map candidate",
zap.String("error", err.Error()),
)
return
}
// create new notary request with the original nonce
err = np.netmapClient.Morph().NotaryInvoke(
np.netmapClient.ContractAddress(),
0,
nr.MainTransaction.Nonce,
netmapEvent.AddPeerNotaryEvent,
nodeInfoBinary,
)
} else {
// notification event case
err = np.netmapClient.AddPeer(nodeInfo)
}
if err != nil {
np.log.Error("can't invoke netmap.AddPeer", zap.Error(err))
}
}
}
// Process update peer notification by sending approval tx to the smart contract.
func (np *Processor) processUpdatePeer(ev netmapEvent.UpdatePeer) {
if !np.alphabetState.IsAlphabet() {
np.log.Info("non alphabet mode, ignore update peer notification")
return
}
// better use unified enum from neofs-api-go/v2/netmap package
if ev.Status() != netmap.NodeStateOffline {
np.log.Warn("node proposes unknown state",
zap.String("key", hex.EncodeToString(ev.PublicKey().Bytes())),
zap.Stringer("status", ev.Status()),
)
return
}
// flag node to remove from local view, so it can be re-bootstrapped
// again before new epoch will tick
np.netmapSnapshot.flag(hex.EncodeToString(ev.PublicKey().Bytes()))
var err error
if nr := ev.NotaryRequest(); nr != nil {
err = np.netmapClient.Morph().NotarySignAndInvokeTX(nr.MainTransaction)
} else {
err = np.netmapClient.UpdatePeerState(ev.PublicKey().Bytes(), ev.Status())
}
if err != nil {
np.log.Error("can't invoke netmap.UpdatePeer", zap.Error(err))
}
}