package nosql import ( "context" "crypto/x509" "encoding/json" "encoding/pem" "time" "github.com/pkg/errors" "github.com/smallstep/certificates/acme" "github.com/smallstep/nosql" ) type dbCert struct { ID string `json:"id"` CreatedAt time.Time `json:"createdAt"` AccountID string `json:"accountID"` OrderID string `json:"orderID"` Leaf []byte `json:"leaf"` Intermediates []byte `json:"intermediates"` } // CreateCertificate creates and stores an ACME certificate type. func (db *DB) CreateCertificate(ctx context.Context, cert *acme.Certificate) error { var err error cert.ID, err = randID() if err != nil { return err } leaf := pem.EncodeToMemory(&pem.Block{ Type: "CERTIFICATE", Bytes: cert.Leaf.Raw, }) var intermediates []byte for _, cert := range cert.Intermediates { intermediates = append(intermediates, pem.EncodeToMemory(&pem.Block{ Type: "CERTIFICATE", Bytes: cert.Raw, })...) } dbch := &dbCert{ ID: cert.ID, AccountID: cert.AccountID, OrderID: cert.OrderID, Leaf: leaf, Intermediates: intermediates, CreatedAt: time.Now().UTC(), } return db.save(ctx, cert.ID, dbch, nil, "certificate", certTable) } // GetCertificate retrieves and unmarshals an ACME certificate type from the // datastore. func (db *DB) GetCertificate(ctx context.Context, id string) (*acme.Certificate, error) { b, err := db.db.Get(certTable, []byte(id)) if nosql.IsErrNotFound(err) { return nil, acme.NewError(acme.ErrorMalformedType, "certificate %s not found", id) } else if err != nil { return nil, errors.Wrapf(err, "error loading certificate %s", id) } dbC := new(dbCert) if err := json.Unmarshal(b, dbC); err != nil { return nil, errors.Wrapf(err, "error unmarshaling certificate %s", id) } certs, err := parseBundle(append(dbC.Leaf, dbC.Intermediates...)) if err != nil { return nil, errors.Wrapf(err, "error parsing certificate chain for ACME certificate with ID %s", id) } return &acme.Certificate{ ID: dbC.ID, AccountID: dbC.AccountID, OrderID: dbC.OrderID, Leaf: certs[0], Intermediates: certs[1:], }, nil } func parseBundle(b []byte) ([]*x509.Certificate, error) { var ( err error block *pem.Block bundle []*x509.Certificate ) for len(b) > 0 { block, b = pem.Decode(b) if block == nil { break } if block.Type != "CERTIFICATE" { return nil, errors.New("error decoding PEM: data contains block that is not a certificate") } var crt *x509.Certificate crt, err = x509.ParseCertificate(block.Bytes) if err != nil { return nil, errors.Wrapf(err, "error parsing x509 certificate") } bundle = append(bundle, crt) } if len(b) > 0 { return nil, errors.New("error decoding PEM: unexpected data") } return bundle, nil }