Add JSON output in gen-html

2025-08-24 10:51:15 +02:00
parent ebfa490a49
commit 0e97b2d872
1 changed files with 54 additions and 0 deletions
--- a/tesseract/genconf/main.go
+++ b/tesseract/genconf/main.go
@@ -4,11 +4,13 @@ import (
 	"crypto/sha256"
 	"crypto/x509"
 	"encoding/base64"
+	"encoding/json"
 	"encoding/pem"
 	"flag"
 	"fmt"
 	"log"
 	"os"
+	"path/filepath"
 	"text/template"
 	"time"

@@ -39,6 +41,7 @@ type Log struct {
 	LogID             string
 	PublicKeyPEM      string
 	PublicKeyDERB64   string
+	PublicKeyBase64   string
 }

 const htmlTemplate = `<!DOCTYPE html>
@@ -206,6 +209,14 @@ func generateHTML(yamlFile string) {
 		
 		file.Close()
 		fmt.Printf("Generated %s\n", indexPath)
+		
+		// Generate log.v3.json for this log
+		jsonPath := filepath.Join(logEntry.LocalDirectory, "log.v3.json")
+		err = generateLogJSON(logEntry, jsonPath)
+		if err != nil {
+			log.Fatalf("Failed to generate %s: %v", jsonPath, err)
+		}
+		fmt.Printf("Generated %s\n", jsonPath)
 	}
 }

@@ -254,6 +265,49 @@ func computeKeyInfo(logEntry *Log) error {
 	logEntry.LogID = logID
 	logEntry.PublicKeyPEM = string(pubKeyPEM)
 	logEntry.PublicKeyDERB64 = pubKeyDERB64
+	logEntry.PublicKeyBase64 = pubKeyDERB64  // Same as DER base64 for JSON
+	
+	return nil
+}
+
+type LogV3JSON struct {
+	Description      string            `json:"description"`
+	SubmissionURL    string            `json:"submission_url"`
+	MonitoringURL    string            `json:"monitoring_url"`
+	TemporalInterval TemporalInterval  `json:"temporal_interval"`
+	LogID            string            `json:"log_id"`
+	Key              string            `json:"key"`
+	MMD              int               `json:"mmd"`
+}
+
+type TemporalInterval struct {
+	StartInclusive string `json:"start_inclusive"`
+	EndExclusive   string `json:"end_exclusive"`
+}
+
+func generateLogJSON(logEntry Log, outputPath string) error {
+	logJSON := LogV3JSON{
+		Description:   fmt.Sprintf("%s.log.ct.ipng.ch", logEntry.ShortName),
+		SubmissionURL: fmt.Sprintf("%s/", logEntry.SubmissionPrefix),
+		MonitoringURL: fmt.Sprintf("%s/", logEntry.MonitoringPrefix),
+		TemporalInterval: TemporalInterval{
+			StartInclusive: logEntry.NotAfterStart.Format("2006-01-02T15:04:05Z"),
+			EndExclusive:   logEntry.NotAfterLimit.Format("2006-01-02T15:04:05Z"),
+		},
+		LogID: logEntry.LogID,
+		Key:   logEntry.PublicKeyBase64,
+		MMD:   60, // Default MMD of 60 seconds
+	}
+	
+	jsonData, err := json.MarshalIndent(logJSON, "", "    ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal JSON: %v", err)
+	}
+	
+	err = os.WriteFile(outputPath, jsonData, 0644)
+	if err != nil {
+		return fmt.Errorf("failed to write JSON file: %v", err)
+	}
 	
 	return nil
 }