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root.go
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root.go
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package cmd
import (
"fmt"
"io"
"net"
"os"
"time"
"github.com/spf13/cobra"
"github.com/cretz/bine/tor"
"github.com/direct-connect/go-dcpp/adc"
ltor "github.com/ipsn/go-libtor"
)
const torSuffix = ".onion"
var Tor *tor.Tor
var Root = &cobra.Command{
Use: "dctor <command>",
Short: "Tor proxy for DC network",
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
fmt.Println("Starting Tor node...")
var dw io.Writer
if debug, _ := cmd.Flags().GetBool("debug"); debug {
dw = os.Stderr
}
dataDir, _ := cmd.Flags().GetString("data")
t, err := tor.Start(nil, &tor.StartConf{
DataDir: dataDir,
ProcessCreator: ltor.Creator,
DebugWriter: dw,
})
if err != nil {
return fmt.Errorf("failed to start Tor: %v", err)
}
Tor = t
return nil
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
if Tor != nil {
_ = Tor.Close()
}
},
}
func init() {
Root.PersistentFlags().Bool("debug", false, "enable debug mode")
Root.PersistentFlags().String("data", "tor-data", "tor data dir")
}
func proxyAll(c1, c2 *adc.Conn) error {
errc := make(chan error, 2)
go func() {
errc <- proxyTo(c1, c2)
}()
go func() {
errc <- proxyTo(c2, c1)
}()
return <-errc
}
func proxyTo(dst, src *adc.Conn) error {
for {
p, err := src.ReadPacket(time.Time{})
if err == io.EOF {
return nil
} else if err != nil {
return err
}
err = dst.WritePacket(p)
if err != nil {
return err
}
err = dst.Flush()
if err != nil {
return err
}
}
}
func copyAll(c1, c2 net.Conn) error {
errc := make(chan error, 2)
go func() {
_, err := io.Copy(c1, c2)
errc <- err
}()
go func() {
_, err := io.Copy(c2, c1)
errc <- err
}()
return <-errc
}