Add ca generation command (#24)

cmd/certs/generateca.go

@@ -0,0 +1,61 @@
+package certs
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/chia-network/go-chia-libs/pkg/tls"
+	"github.com/chia-network/go-modules/pkg/slogs"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"gopkg.in/yaml.v3"
+)
+
+// generateCACmd represents the generate CA command
+var generateCACmd = &cobra.Command{
+	Use:     "generate-ca",
+	Short:   "Generates a new random CA",
+	Example: "chia-tools certs generate-ca",
+	Run: func(cmd *cobra.Command, args []string) {
+		// Get the public CA cert and key byte slices
+		publicCACrtBytes, publicCAKeyBytes := tls.GetChiaCACertAndKey()
+
+		// Generate a private CA cert and key
+		privateCACrt, privateCAKey, err := tls.GenerateNewCA()
+		if err != nil {
+			slogs.Logr.Fatal("encountered error generating new private CA cert and key", "error", err)
+		}
+
+		// Encode the private CA cert and key to PEM byte slices
+		privateCACrtBytes, privateCAKeyBytes, err := tls.EncodeCertAndKeyToPEM(privateCACrt, privateCAKey)
+		if err != nil {
+			slogs.Logr.Fatal("encountered error encoding private CA cert and key to PEM", "error", err)
+		}
+
+		toMarshal := map[string]string{
+			"chia_ca.crt":    string(publicCACrtBytes),
+			"chia_ca.key":    string(publicCAKeyBytes),
+			"private_ca.crt": string(privateCACrtBytes),
+			"private_ca.key": string(privateCAKeyBytes),
+		}
+
+		var marshalled []byte
+		if viper.GetBool("ca-gen-as-json") {
+			marshalled, err = json.Marshal(toMarshal)
+		} else {
+			marshalled, err = yaml.Marshal(toMarshal)
+		}
+
+		if err != nil {
+			slogs.Logr.Fatal("error marshalling", "error", err)
+		}
+		fmt.Print(string(marshalled))
+	},
+}
+
+func init() {
+	generateCACmd.PersistentFlags().Bool("as-json", false, "Output as JSON blob instead of yaml")
+	cobra.CheckErr(viper.BindPFlag("ca-gen-as-json", generateCACmd.PersistentFlags().Lookup("as-json")))
+
+	certsCmd.AddCommand(generateCACmd)
+}