76 lines
2 KiB
Go
76 lines
2 KiB
Go
package cmd
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import (
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"net"
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"os"
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"os/signal"
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"strconv"
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"syscall"
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"time"
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"github.com/lbryio/reflector.go/dht"
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"github.com/lbryio/reflector.go/dht/bits"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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var dhtNodeID string
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var dhtPort int
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var dhtRPCPort int
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var dhtSeeds []string
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func init() {
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var cmd = &cobra.Command{
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Use: "dht [connect|bootstrap]",
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Short: "Run dht node",
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ValidArgs: []string{"connect", "bootstrap"},
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Args: argFuncs(cobra.ExactArgs(1), cobra.OnlyValidArgs),
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Run: dhtCmd,
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}
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cmd.PersistentFlags().StringVar(&dhtNodeID, "nodeID", "", "nodeID in hex")
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cmd.PersistentFlags().IntVar(&dhtPort, "port", 4567, "Port to start DHT on")
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cmd.PersistentFlags().IntVar(&dhtRPCPort, "rpcPort", 0, "Port to listen for rpc commands on")
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cmd.PersistentFlags().StringSliceVar(&dhtSeeds, "seeds", []string{}, "Addresses of seed nodes")
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rootCmd.AddCommand(cmd)
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}
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func dhtCmd(cmd *cobra.Command, args []string) {
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if args[0] == "bootstrap" {
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node := dht.NewBootstrapNode(bits.Rand(), 1*time.Millisecond, 1*time.Minute)
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listener, err := net.ListenPacket(dht.Network, "127.0.0.1:"+strconv.Itoa(dhtPort))
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checkErr(err)
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conn := listener.(*net.UDPConn)
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err = node.Connect(conn)
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checkErr(err)
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interruptChan := make(chan os.Signal, 1)
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signal.Notify(interruptChan, os.Interrupt, syscall.SIGTERM)
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<-interruptChan
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node.Shutdown()
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} else {
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nodeID := bits.Rand()
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if dhtNodeID != "" {
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nodeID = bits.FromHexP(dhtNodeID)
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}
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log.Println(nodeID.String())
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dhtConf := dht.NewStandardConfig()
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dhtConf.Address = "0.0.0.0:" + strconv.Itoa(dhtPort)
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dhtConf.RPCPort = dhtRPCPort
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if len(dhtSeeds) > 0 {
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dhtConf.SeedNodes = dhtSeeds
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}
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d := dht.New(dhtConf)
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err := d.Start()
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if err != nil {
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log.Println("error starting dht: " + err.Error())
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return
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}
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interruptChan := make(chan os.Signal, 1)
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signal.Notify(interruptChan, os.Interrupt, syscall.SIGTERM, syscall.SIGINT)
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<-interruptChan
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d.Shutdown()
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}
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}
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