139 lines
2.8 KiB
Go
139 lines
2.8 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"github.com/libp2p/go-libp2p"
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"github.com/libp2p/go-libp2p/p2p/discovery/mdns"
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"github.com/libp2p/go-libp2p/p2p/muxer/mplex"
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"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
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tls "github.com/libp2p/go-libp2p/p2p/security/tls"
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"github.com/libp2p/go-libp2p/p2p/transport/tcp"
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"github.com/libp2p/go-libp2p/p2p/transport/websocket"
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kaddht "github.com/libp2p/go-libp2p-kad-dht"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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"github.com/libp2p/go-libp2p/core/host"
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"github.com/libp2p/go-libp2p/core/peer"
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"github.com/libp2p/go-libp2p/core/routing"
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"github.com/multiformats/go-multiaddr"
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)
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type mdnsNotifee struct {
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h host.Host
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ctx context.Context
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}
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func (m *mdnsNotifee) HandlePeerFound(pi peer.AddrInfo) {
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m.h.Connect(m.ctx, pi)
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}
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func main() {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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transports := libp2p.ChainOptions(
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libp2p.Transport(tcp.NewTCPTransport),
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libp2p.Transport(websocket.New),
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)
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muxers := libp2p.ChainOptions(
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libp2p.Muxer("/yamux/1.0.0", yamux.DefaultTransport),
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libp2p.Muxer("/mplex/6.7.0", mplex.DefaultTransport),
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)
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security := libp2p.Security(tls.ID, tls.New)
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listenAddrs := libp2p.ListenAddrStrings(
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"/ip4/0.0.0.0/tcp/0",
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"/ip4/0.0.0.0/tcp/0/ws",
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)
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var dht *kaddht.IpfsDHT
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newDHT := func(h host.Host) (routing.PeerRouting, error) {
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var err error
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dht, err = kaddht.New(ctx, h)
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return dht, err
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}
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routing := libp2p.Routing(newDHT)
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host, err := libp2p.New(
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transports,
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listenAddrs,
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muxers,
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security,
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routing,
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)
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if err != nil {
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panic(err)
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}
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ps, err := pubsub.NewGossipSub(ctx, host)
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if err != nil {
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panic(err)
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}
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topic, err := ps.Join(pubsubTopic)
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if err != nil {
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panic(err)
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}
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defer topic.Close()
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sub, err := topic.Subscribe()
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if err != nil {
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panic(err)
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}
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// TODO: Modify this handler to use the protobufs defined in this folder
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go pubsubHandler(ctx, sub)
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for _, addr := range host.Addrs() {
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fmt.Println("Listening on", addr)
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}
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targetAddr, err := multiaddr.NewMultiaddr("/ip4/127.0.0.1/tcp/63785/p2p/QmWjz6xb8v9K4KnYEwP5Yk75k5mMBCehzWFLCvvQpYxF3d")
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if err != nil {
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panic(err)
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}
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targetInfo, err := peer.AddrInfoFromP2pAddr(targetAddr)
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if err != nil {
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panic(err)
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}
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err = host.Connect(ctx, *targetInfo)
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if err != nil {
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panic(err)
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}
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fmt.Println("Connected to", targetInfo.ID)
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mdns := mdns.NewMdnsService(host, "", &mdnsNotifee{h: host, ctx: ctx})
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if err := mdns.Start(); err != nil {
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panic(err)
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}
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err = dht.Bootstrap(ctx)
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if err != nil {
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panic(err)
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}
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donec := make(chan struct{}, 1)
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// TODO: modify this chat input loop to use the protobufs defined in this
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// folder.
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go chatInputLoop(ctx, topic, donec)
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, syscall.SIGINT)
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select {
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case <-stop:
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host.Close()
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os.Exit(0)
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case <-donec:
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host.Close()
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}
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}
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