Add Sigsum config to --build

We introduce a .String() function on the Log type to help us do this.

Author: mchack-work

cmd/tkey-verification/util.go

@@ -11,6 +11,7 @@ import (
 	"github.com/spf13/pflag"
 	"github.com/tillitis/tkey-verification/internal/appbins"
 	"github.com/tillitis/tkey-verification/internal/firmware"
+	"github.com/tillitis/tkey-verification/internal/sigsum"
 	"github.com/tillitis/tkey-verification/internal/vendorkey"
 )
 
@@ -27,6 +28,12 @@ func builtWith() {
 		os.Exit(1)
 	}
 
+	var log sigsum.Log
+	if err = log.FromEmbedded(); err != nil {
+		le.Printf("Sigsum configuration missing")
+		os.Exit(1)
+	}
+
 	firmwares, err := firmware.NewFirmwares()
 	if err != nil {
 		le.Printf("Found no usable firmwares\n")
@@ -38,11 +45,15 @@ Supported verisigner-app tags:
   %s
 Known vendor signing keys:
   %s
+
+Known Sigsum configuration:
+%s
 Known firmwares:
   %s
 `,
 		strings.Join(appBins.Tags(), " \n  "),
 		vendorKeys.String(),
+		log.String(),
 		strings.Join(firmwares.List(), " \n  "))
 
 }

internal/sigsum/sigsum.go

@@ -34,7 +34,7 @@ type PubKey struct {
 }
 
 func (p PubKey) String() string {
-	return fmt.Sprintf("%v using app %v: %x\n  Valid: %v-%v\n", p.Name, p.Tag, p.Key, p.Start.Format(time.RFC3339), p.End.Format(time.RFC3339))
+	return fmt.Sprintf("%v using app %v: %x\n  Valid: %v - %v\n", p.Name, p.Tag, p.Key, p.Start.Format(time.RFC3339), p.End.Format(time.RFC3339))
 }
 
 type Log struct {
@@ -43,6 +43,23 @@ type Log struct {
 	Policy     *policy.Policy
 }
 
+func (s *Log) String() string {
+	var output string
+
+	output = "Logs:\n"
+	for _, log := range s.Policy.GetLogsWithUrl() {
+		output += fmt.Sprintf("  - Key: %x\n", log.PublicKey)
+		output += fmt.Sprintf("    URL: %v\n\n", log.URL)
+	}
+
+	output += "Submit keys:\n"
+	for _, key := range s.Keys {
+		output += fmt.Sprintf("  - %s", key)
+	}
+
+	return output
+}
+
 type State int
 
 const (