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Introduce lifetime parameters to generate-ca cmd

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- refactored flags parsing
This commit is contained in:
Peter 2020-04-01 13:54:00 +02:00
parent a720b0ee41
commit 02d8b444e3
Signed by: prskr
GPG key ID: C1DB5D2E8DB512F9
1 changed files with 50 additions and 21 deletions
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65
pkg/plugins/tls_interceptor/generate_ca_cmd.go
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@ -3,12 +3,15 @@ package main
import (
"github.com/spf13/cobra"
"go.uber.org/zap"
"time"
)
const (
generateCACertOutPath = "cert-out"
generateCAKeyOutPath = "key-out"
generateCACurveName = "curve"
generateCANotBeforeRelative = "not-before"
generateCANotAfterRelative = "not-after"
)
func generateCACmd(logger *zap.Logger) *cobra.Command {
@ -22,36 +25,56 @@ func generateCACmd(logger *zap.Logger) *cobra.Command {
cmd.Flags().String(generateCACertOutPath, "", "Path where CA cert file should be stored")
cmd.Flags().String(generateCAKeyOutPath, "", "Path where CA key file should be stored")
cmd.Flags().String(generateCACurveName, "", "Name of the curve to use, if empty ED25519 is used, other valid values are [P224, P256,P384,P521]")
cmd.Flags().Duration(generateCANotBeforeRelative, 17520*time.Hour, "Relative time value since when in the past the CA certificate should be valid. The value has a time unit, the greatest time unit is h for hour.")
cmd.Flags().Duration(generateCANotAfterRelative, 17520*time.Hour, "Relative time value until when in the future the CA certificate should be valid. The value has a time unit, the greatest time unit is h for hour.")
return cmd
}
func getDurationFlag(cmd *cobra.Command, flagName string, logger *zap.Logger) (val time.Duration, err error) {
if val, err = cmd.Flags().GetDuration(flagName); err != nil {
logger.Error(
"failed to parse parse flag",
zap.String("flag", flagName),
zap.Error(err),
)
}
return
}
func getStringFlag(cmd *cobra.Command, flagName string, logger *zap.Logger) (val string, err error) {
if val, err = cmd.Flags().GetString(flagName); err != nil {
logger.Error(
"failed to parse parse flag",
zap.String("flag", flagName),
zap.Error(err),
)
}
return
}
func runGenerateCA(logger *zap.Logger) func(cmd *cobra.Command, args []string) {
return func(cmd *cobra.Command, args []string) {
var certOutPath, keyOutPath, curveName string
var notBefore, notAfter time.Duration
var err error
if certOutPath, err = cmd.Flags().GetString(generateCACertOutPath); err != nil {
logger.Error(
"failed to parse parse flag",
zap.String("flag", generateCACertOutPath),
zap.Error(err),
)
if certOutPath, err = getStringFlag(cmd, generateCACertOutPath, logger); err != nil {
return
}
if keyOutPath, err = cmd.Flags().GetString(generateCAKeyOutPath); err != nil {
logger.Error(
"failed to parse parse flag",
zap.String("flag", generateCAKeyOutPath),
zap.Error(err),
)
if keyOutPath, err = getStringFlag(cmd, generateCAKeyOutPath, logger); err != nil {
return
}
if curveName, err = cmd.Flags().GetString(generateCACurveName); err != nil {
logger.Error(
"failed to parse parse flag",
zap.String("flag", generateCACurveName),
zap.Error(err),
)
if curveName, err = getStringFlag(cmd, generateCACurveName, logger); err != nil {
return
}
if notBefore, err = getDurationFlag(cmd, generateCANotBeforeRelative, logger); err != nil {
return
}
if notAfter, err = getDurationFlag(cmd, generateCANotAfterRelative, logger); err != nil {
return
}
@ -64,6 +87,12 @@ func runGenerateCA(logger *zap.Logger) func(cmd *cobra.Command, args []string) {
certStore := certStore{
options: &tlsOptions{
ecdsaCurve: curveType(curveName),
validity: validity{
ca: certValidity{
notAfterRelative: notAfter,
notBeforeRelative: notBefore,
},
},
rootCaCert: cert{
publicKeyPath: certOutPath,
privateKeyPath: keyOutPath,