Files
goutils/cmd/certser/main.go

53 lines
1.1 KiB
Go

package main
import (
"crypto/x509"
"flag"
"fmt"
"strings"
"git.wntrmute.dev/kyle/goutils/die"
"git.wntrmute.dev/kyle/goutils/lib"
)
const displayInt lib.HexEncodeMode = iota
func parseDisplayMode(mode string) lib.HexEncodeMode {
mode = strings.ToLower(mode)
if mode == "int" {
return displayInt
}
return lib.ParseHexEncodeMode(mode)
}
func serialString(cert *x509.Certificate, mode lib.HexEncodeMode) string {
if mode == displayInt {
return cert.SerialNumber.String()
}
return lib.HexEncode(cert.SerialNumber.Bytes(), mode)
}
func main() {
opts := &lib.FetcherOpts{}
displayAs := flag.String("d", "int", "display mode (int, hex, uhex)")
showExpiry := flag.Bool("e", false, "show expiry date")
flag.BoolVar(&opts.SkipVerify, "k", false, "skip server verification")
flag.Parse()
displayMode := parseDisplayMode(*displayAs)
for _, arg := range flag.Args() {
cert, err := lib.GetCertificate(arg, opts)
die.If(err)
fmt.Printf("%s: %s", arg, serialString(cert, displayMode))
if *showExpiry {
fmt.Printf(" (%s)", cert.NotAfter.Format("2006-01-02"))
}
fmt.Println()
}
}