nsecbunker work-in-progress.

helpers.go

@@ -9,12 +9,17 @@ import (
 	"os"
 	"strings"
 
+	"github.com/bgentry/speakeasy"
 	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip19"
 	"github.com/urfave/cli/v2"
 )
 
 const (
 	LINE_PROCESSING_ERROR = iota
+
+	BOLD_ON  = "\033[1m"
+	BOLD_OFF = "\033[21m"
 )
 
 var log = func(msg string, args ...any) {
@@ -129,3 +134,33 @@ func exitIfLineProcessingError(c *cli.Context) {
 		os.Exit(123)
 	}
 }
+
+func gatherSecretKeyFromArguments(c *cli.Context) (string, error) {
+	sec := c.String("sec")
+	if c.Bool("prompt-sec") {
+		if isPiped() {
+			return "", fmt.Errorf("can't prompt for a secret key when processing data from a pipe, try again without --prompt-sec")
+		}
+		var err error
+		sec, err = speakeasy.FAsk(os.Stderr, "type your secret key as nsec or hex: ")
+		if err != nil {
+			return "", fmt.Errorf("failed to get secret key: %w", err)
+		}
+	}
+	if strings.HasPrefix(sec, "nsec1") {
+		_, hex, err := nip19.Decode(sec)
+		if err != nil {
+			return "", fmt.Errorf("invalid nsec: %w", err)
+		}
+		sec = hex.(string)
+	}
+	if len(sec) > 64 {
+		return "", fmt.Errorf("invalid secret key: too large")
+	}
+	sec = strings.Repeat("0", 64-len(sec)) + sec // left-pad
+	if err := validate32BytesHex(sec); err != nil {
+		return "", fmt.Errorf("invalid secret key")
+	}
+
+	return sec, nil
+}