81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
"flag"
|
||
|
|
"fmt"
|
||
|
|
"io"
|
||
|
|
"io/ioutil"
|
||
|
|
"os"
|
||
|
|
"github.com/slackhq/nebula/cert"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
type printFlags struct {
|
||
|
|
set *flag.FlagSet
|
||
|
|
json *bool
|
||
|
|
path *string
|
||
|
|
}
|
||
|
|
|
||
|
|
func newPrintFlags() *printFlags {
|
||
|
|
pf := printFlags{set: flag.NewFlagSet("print", flag.ContinueOnError)}
|
||
|
|
pf.set.Usage = func() {}
|
||
|
|
pf.json = pf.set.Bool("json", false, "Optional: outputs certificates in json format")
|
||
|
|
pf.path = pf.set.String("path", "", "Required: path to the certificate")
|
||
|
|
|
||
|
|
return &pf
|
||
|
|
}
|
||
|
|
|
||
|
|
func printCert(args []string, out io.Writer, errOut io.Writer) error {
|
||
|
|
pf := newPrintFlags()
|
||
|
|
err := pf.set.Parse(args)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
if err := mustFlagString("path", pf.path); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
rawCert, err := ioutil.ReadFile(*pf.path)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("unable to read cert; %s", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
var c *cert.NebulaCertificate
|
||
|
|
|
||
|
|
for {
|
||
|
|
c, rawCert, err = cert.UnmarshalNebulaCertificateFromPEM(rawCert)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("error while unmarshaling cert: %s", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if *pf.json {
|
||
|
|
b, _ := json.Marshal(c)
|
||
|
|
out.Write(b)
|
||
|
|
out.Write([]byte("\n"))
|
||
|
|
|
||
|
|
} else {
|
||
|
|
out.Write([]byte(c.String()))
|
||
|
|
out.Write([]byte("\n"))
|
||
|
|
}
|
||
|
|
|
||
|
|
if rawCert == nil || len(rawCert) == 0 || strings.TrimSpace(string(rawCert)) == "" {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func printSummary() string {
|
||
|
|
return "print <flags>: prints details about a certificate"
|
||
|
|
}
|
||
|
|
|
||
|
|
func printHelp(out io.Writer) {
|
||
|
|
pf := newPrintFlags()
|
||
|
|
out.Write([]byte("Usage of " + os.Args[0] + " " + printSummary() + "\n"))
|
||
|
|
pf.set.SetOutput(out)
|
||
|
|
pf.set.PrintDefaults()
|
||
|
|
}
|