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go-monero/cmd/monero/commands/p2p/peer_list.go
2022-10-05 09:40:23 +02:00

90 lines
1.7 KiB
Go

package p2p
import (
"context"
"fmt"
"time"
"github.com/spf13/cobra"
"golang.org/x/net/proxy"
"git.gammaspectra.live/P2Pool/go-monero/pkg/levin"
)
type peerListCommand struct {
NodeAddress string
Timeout time.Duration
Proxy string
}
func (c *peerListCommand) Cmd() *cobra.Command {
cmd := &cobra.Command{
Use: "peerlist",
Short: "retrieve a node's peerlist",
RunE: c.RunE,
}
cmd.Flags().StringVar(&c.NodeAddress,
"node-address",
"",
"address of the node to connect to")
_ = cmd.MarkFlagRequired("node-address")
cmd.Flags().DurationVar(&c.Timeout,
"timeout",
1*time.Minute,
"how long to wait until considering the connection a failure")
cmd.Flags().StringVar(&c.Proxy,
"proxy",
"",
"proxy to proxy connections through (useful for tor)")
return cmd
}
// nolint:forbidigo
func (c *peerListCommand) RunE(_ *cobra.Command, _ []string) error {
ctx, cancel := context.WithTimeout(context.Background(), c.Timeout)
defer cancel()
opts := []levin.ClientOption{}
if c.Proxy != "" {
dialer, err := proxy.SOCKS5("tcp", c.Proxy, nil, nil)
if err != nil {
return fmt.Errorf("socks5 '%s': %w", c.Proxy, err)
}
contextDialer, ok := dialer.(proxy.ContextDialer)
if !ok {
return fmt.Errorf("can't cast proxy dialer " +
"to proxy context dialer")
}
opts = append(opts, levin.WithContextDialer(contextDialer))
}
client, err := levin.NewClient(ctx, c.NodeAddress, opts...)
if err != nil {
return fmt.Errorf("new client: %w", err)
}
defer client.Close()
pl, err := client.Handshake(ctx)
if err != nil {
return fmt.Errorf("handshake: %w", err)
}
for addr := range pl.Peers {
fmt.Println(addr)
}
return nil
}
func init() {
RootCommand.AddCommand((&peerListCommand{}).Cmd())
}