52ed3570c4
This change updates our urfave/cli dependency to the v2 branch of the library. There are some Go API changes in cli v2: - Flag values can now be accessed using the methods ctx.Bool, ctx.Int, ctx.String, ... regardless of whether the flag is 'local' or 'global'. - v2 has built-in support for flag categories. Our home-grown category system is removed and the categories of flags are assigned as part of the flag definition. For users, there is only one observable difference with cli v2: flags must now strictly appear before regular arguments. For example, the following command is now invalid: geth account import mykey.json --password file.txt Instead, the command must be invoked as follows: geth account import --password file.txt mykey.json
106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
// Copyright 2020 The go-ethereum Authors
|
|
// This file is part of go-ethereum.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// go-ethereum is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/urfave/cli/v2"
|
|
)
|
|
|
|
var (
|
|
keyCommand = &cli.Command{
|
|
Name: "key",
|
|
Usage: "Operations on node keys",
|
|
Subcommands: []*cli.Command{
|
|
keyGenerateCommand,
|
|
keyToNodeCommand,
|
|
},
|
|
}
|
|
keyGenerateCommand = &cli.Command{
|
|
Name: "generate",
|
|
Usage: "Generates node key files",
|
|
ArgsUsage: "keyfile",
|
|
Action: genkey,
|
|
}
|
|
keyToNodeCommand = &cli.Command{
|
|
Name: "to-enode",
|
|
Usage: "Creates an enode URL from a node key file",
|
|
ArgsUsage: "keyfile",
|
|
Action: keyToURL,
|
|
Flags: []cli.Flag{hostFlag, tcpPortFlag, udpPortFlag},
|
|
}
|
|
)
|
|
|
|
var (
|
|
hostFlag = &cli.StringFlag{
|
|
Name: "ip",
|
|
Usage: "IP address of the node",
|
|
Value: "127.0.0.1",
|
|
}
|
|
tcpPortFlag = &cli.IntFlag{
|
|
Name: "tcp",
|
|
Usage: "TCP port of the node",
|
|
Value: 30303,
|
|
}
|
|
udpPortFlag = &cli.IntFlag{
|
|
Name: "udp",
|
|
Usage: "UDP port of the node",
|
|
Value: 30303,
|
|
}
|
|
)
|
|
|
|
func genkey(ctx *cli.Context) error {
|
|
if ctx.NArg() != 1 {
|
|
return fmt.Errorf("need key file as argument")
|
|
}
|
|
file := ctx.Args().Get(0)
|
|
|
|
key, err := crypto.GenerateKey()
|
|
if err != nil {
|
|
return fmt.Errorf("could not generate key: %v", err)
|
|
}
|
|
return crypto.SaveECDSA(file, key)
|
|
}
|
|
|
|
func keyToURL(ctx *cli.Context) error {
|
|
if ctx.NArg() != 1 {
|
|
return fmt.Errorf("need key file as argument")
|
|
}
|
|
|
|
var (
|
|
file = ctx.Args().Get(0)
|
|
host = ctx.String(hostFlag.Name)
|
|
tcp = ctx.Int(tcpPortFlag.Name)
|
|
udp = ctx.Int(udpPortFlag.Name)
|
|
)
|
|
key, err := crypto.LoadECDSA(file)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ip := net.ParseIP(host)
|
|
if ip == nil {
|
|
return fmt.Errorf("invalid IP address %q", host)
|
|
}
|
|
node := enode.NewV4(&key.PublicKey, ip, tcp, udp)
|
|
fmt.Println(node.URLv4())
|
|
return nil
|
|
}
|