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wireguard.go
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wireguard.go
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package wggen
import (
"fmt"
"io"
"os/exec"
"strings"
)
func isWGInstalled() bool {
cmd := exec.Command("wg", "--version")
err := cmd.Run()
return err == nil
}
func genPrivKey() (string, error) {
if !isWGInstalled() {
return "", fmt.Errorf("WireGuard may not be installed or in your PATH variable")
}
cmd := exec.Command("wg", "genkey")
output, err := cmd.Output()
if err != nil {
return "", err
}
return strings.TrimSpace(string(output)), nil
}
func genPubKey(privatekey string) (string, error) {
if !isWGInstalled() {
return "", fmt.Errorf("WireGuard may not be installed or in your PATH variable")
}
cmd := exec.Command("wg", "pubkey")
stdin, err := cmd.StdinPipe()
if err != nil {
return "", err
}
go func() {
defer stdin.Close()
io.WriteString(stdin, privatekey)
}()
output, err := cmd.Output()
if err != nil {
return "", err
}
return strings.TrimSpace(string(output)), nil
}
func genPSK() (string, error) {
if !isWGInstalled() {
return "", fmt.Errorf("WireGuard may not be installed or in your PATH variable")
}
cmd := exec.Command("wg", "genpsk")
output, err := cmd.Output()
if err != nil {
return "", err
}
return strings.TrimSpace(string(output)), nil
}