/
signer.go
59 lines (49 loc) · 1.32 KB
/
signer.go
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package server
import (
"context"
"crypto"
"crypto/x509"
"fmt"
"os"
"path/filepath"
"github.com/justinsb/packages/kinspire/pkg/certs"
)
type LocalSigner struct {
caCerts []*x509.Certificate
signerCert *x509.Certificate
signerKey crypto.PrivateKey
}
func NewLocalSigner() (*LocalSigner, error) {
caDir := "/secrets/ca"
var caCertificates []*x509.Certificate
{
p := filepath.Join(caDir, "ca.crt")
caBytes, err := os.ReadFile(p)
if err != nil {
return nil, fmt.Errorf("reading file %q: %w", p, err)
}
caCertificates, err = certs.DecodeCertificates(caBytes)
if err != nil {
return nil, fmt.Errorf("error adding certificates from %q", p)
}
}
signerCert, err := certs.LoadCertificate(filepath.Join(caDir, "signing.crt"))
if err != nil {
return nil, err
}
signerKey, err := certs.LoadPrivateKey(filepath.Join(caDir, "signing.key"))
if err != nil {
return nil, err
}
return &LocalSigner{
caCerts: caCertificates,
signerKey: signerKey,
signerCert: signerCert,
}, nil
}
func (s *LocalSigner) GetCACertificates(ctx context.Context) ([]*x509.Certificate, error) {
return s.caCerts, nil
}
func (s *LocalSigner) CreateCertificate(ctx context.Context, template x509.Certificate) (*x509.Certificate, crypto.PrivateKey, error) {
return certs.CreateCertificate(template, s.signerCert, s.signerKey)
}