node rpc Start & Ping, add rpc-test (client), add ID marshalers

config/config.go

@@ -1,12 +1,23 @@
 package config
 
 import (
+	"go-dht/kademlia"
+
 	"github.com/spf13/viper"
 	"github.com/urfave/cli"
 )
 
 type Config struct {
+	ID            string
+	Addr          string
+	Port          string
+	KnownNodesStr []KnownNodeStr        `mapstructure:"knownnodes"`
+	KnownNodes    []kademlia.ListedNode `mapstructure:"-"`
+}
+
+type KnownNodeStr struct {
 	ID   string
+	Addr string
 	Port string
 }
 
@@ -27,5 +38,19 @@ func MustRead(c *cli.Context) error {
 	if err := viper.Unmarshal(&C); err != nil {
 		return err
 	}
+
+	for _, v := range C.KnownNodesStr {
+		id, err := kademlia.IDFromString(v.ID)
+		if err != nil {
+			return err
+		}
+		kn := kademlia.ListedNode{
+			ID:   id,
+			Addr: v.Addr,
+			Port: v.Port,
+		}
+		C.KnownNodes = append(C.KnownNodes, kn)
+	}
+	C.KnownNodesStr = []KnownNodeStr{}
 	return nil
 }