Add certificate store

cmd/internal/update_certificates/main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"encoding/csv"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/sagernet/sing-box/log"
+
+	"golang.org/x/exp/slices"
+)
+
+func main() {
+	err := updateMozillaIncludedRootCAs()
+	if err != nil {
+		log.Error(err)
+	}
+}
+
+func updateMozillaIncludedRootCAs() error {
+	response, err := http.Get("https://ccadb.my.salesforce-sites.com/mozilla/IncludedCACertificateReportPEMCSV")
+	if err != nil {
+		return err
+	}
+	defer response.Body.Close()
+	reader := csv.NewReader(response.Body)
+	header, err := reader.Read()
+	if err != nil {
+		return err
+	}
+	geoIndex := slices.Index(header, "Geographic Focus")
+	nameIndex := slices.Index(header, "Common Name or Certificate Name")
+	certIndex := slices.Index(header, "PEM Info")
+
+	generated := strings.Builder{}
+	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import "crypto/x509"
+
+var mozillaIncluded *x509.CertPool
+
+func init() {
+	mozillaIncluded = x509.NewCertPool()
+`)
+	for {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+		if record[geoIndex] == "China" {
+			continue
+		}
+		generated.WriteString("\n	// ")
+		generated.WriteString(record[nameIndex])
+		generated.WriteString("\n")
+		generated.WriteString("	mozillaIncluded.AppendCertsFromPEM([]byte(`")
+		generated.WriteString(record[certIndex])
+		generated.WriteString("`))\n")
+	}
+	generated.WriteString("}\n")
+	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
+}