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ping.go
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ping.go
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package p2pnode
import (
"context"
"io"
"github.com/cosmos/gogoproto/proto"
"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/peerstore"
ma "github.com/multiformats/go-multiaddr"
"github.com/bnb-chain/greenfield-storage-provider/base/types/gfspp2p"
"github.com/bnb-chain/greenfield-storage-provider/pkg/log"
)
const (
PingProtocol = "/ping/0.0.1"
PongProtocol = "/pong/0.0.1"
)
// OnPing handles remote node ping request
func (n *Node) onPing(s network.Stream) {
var (
peerID = s.Conn().RemotePeer()
err error
)
defer func() {
if err != nil {
n.peers.DeletePeer(peerID)
log.Warnw("failed to response ping", "peer_id", peerID, "error", err)
return
}
}()
ping := &gfspp2p.GfSpPing{}
buf, err := io.ReadAll(s)
if err != nil {
log.Errorw("failed to read ping msg from stream", "error", err)
s.Reset()
return
}
s.Close()
err = proto.Unmarshal(buf, ping)
if err != nil {
log.Errorw("failed to unmarshal ping msg", "error", err)
return
}
// log.Debugf("%s received ping request from %s. Message: %s", s.Conn().LocalPeer(), s.Conn().RemotePeer(), ping.String())
err = VerifySignature(ping.GetSpOperatorAddress(), ping.GetSignBytes(), ping.GetSignature())
if err != nil {
log.Warnw("failed to verify ping msg signature", "local",
s.Conn().LocalPeer(), "remote", s.Conn().RemotePeer(), "error", err)
return
}
n.node.Peerstore().AddAddr(s.Conn().RemotePeer(), s.Conn().RemoteMultiaddr(), peerstore.PermanentAddrTTL)
n.peers.AddPeer(peerID, ping.SpOperatorAddress, s.Conn().RemoteMultiaddr())
pong := &gfspp2p.GfSpPong{}
for _, pID := range n.node.Peerstore().PeersWithAddrs() {
nodeInfo := &gfspp2p.GfSpNode{
NodeId: pID.String(),
}
addrs := n.node.Peerstore().Addrs(pID)
for _, addr := range addrs {
nodeInfo.MultiAddr = append(nodeInfo.MultiAddr, addr.String())
}
pong.Nodes = append(pong.Nodes, nodeInfo)
// log.Debugw("send node to remote", "node_id", pID.String(), "remote_node", s.Conn().RemotePeer())
}
// add self ant address
if len(n.p2pAntAddress) > 0 {
selfAntAddr, err := MakeMultiaddr(n.p2pAntAddress)
if err != nil {
log.Errorw("failed to parse self ant address",
"ant_address", n.p2pAntAddress, "error", err)
} else {
nodeInfo := &gfspp2p.GfSpNode{
NodeId: n.node.ID().String(),
MultiAddr: []string{selfAntAddr.String()},
}
pong.Nodes = append(pong.Nodes, nodeInfo)
}
}
pong.SpOperatorAddress = n.baseApp.OperatorAddress()
signature, err := n.baseApp.GfSpClient().SignP2PPongMsg(context.Background(), pong)
if err != nil {
log.Errorw("failed to sign pong msg", "local", s.Conn().LocalPeer(), "remote", s.Conn().RemotePeer(), "error", err)
return
}
pong.Signature = signature
err = n.sendToPeer(context.Background(), s.Conn().RemotePeer(), PongProtocol, pong)
}
// onPong handles remote node pong response
func (n *Node) onPong(s network.Stream) {
var (
peerID = s.Conn().RemotePeer()
err error
)
defer func() {
if err != nil {
n.peers.DeletePeer(peerID)
log.Warnw("failed to receive pong", "peer_id", peerID, "error", err)
return
}
}()
pong := &gfspp2p.GfSpPong{}
buf, err := io.ReadAll(s)
if err != nil {
log.Errorw("failed to read pong msg from stream", "error", err)
s.Reset()
return
}
s.Close()
err = proto.Unmarshal(buf, pong)
if err != nil {
log.Errorw("failed to unmarshal ping msg", "error", err)
return
}
// log.Debugf("%s received pong request from %s.", s.Conn().LocalPeer(), s.Conn().RemotePeer())
err = VerifySignature(pong.GetSpOperatorAddress(), pong.GetSignBytes(), pong.GetSignature())
if err != nil {
log.Warnw("failed to verify pong msg signature", "local", s.Conn().LocalPeer(), "remote", s.Conn().RemotePeer(), "error", err)
return
}
n.peers.AddPeer(peerID, pong.SpOperatorAddress, s.Conn().RemoteMultiaddr())
for _, node := range pong.Nodes {
pID, err := peer.Decode(node.NodeId)
if err != nil {
continue
}
var addrs []ma.Multiaddr
for _, maddr := range node.MultiAddr {
addr, err := ma.NewMultiaddr(maddr)
if err != nil {
continue
}
addrs = append(addrs, addr)
}
n.node.Peerstore().AddAddrs(pID, addrs, peerstore.PermanentAddrTTL)
// log.Debugw("receive node from remote and permanent", "remote_node", s.Conn().RemotePeer(), "node_id", pID)
}
}