86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
package jwk
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import (
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"crypto/x509"
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"github.com/lestrrat-go/jwx/internal/json"
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"github.com/lestrrat-go/jwx/internal/base64"
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"github.com/pkg/errors"
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)
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func (c CertificateChain) MarshalJSON() ([]byte, error) {
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certs := c.Get()
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encoded := make([]string, len(certs))
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for i := 0; i < len(certs); i++ {
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encoded[i] = base64.EncodeToStringStd(certs[i].Raw)
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}
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return json.Marshal(encoded)
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}
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func (c *CertificateChain) UnmarshalJSON(buf []byte) error {
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var list []string
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if err := json.Unmarshal(buf, &list); err != nil {
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return errors.Wrap(err, `failed to unmarshal JSON into []string`)
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}
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var tmp CertificateChain
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if err := tmp.Accept(list); err != nil {
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return err
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}
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*c = tmp
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return nil
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}
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func (c CertificateChain) Get() []*x509.Certificate {
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return c.certs
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}
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func (c *CertificateChain) Accept(v interface{}) error {
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var list []string
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switch x := v.(type) {
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case string:
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list = []string{x}
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case []interface{}:
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list = make([]string, len(x))
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for i, e := range x {
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if es, ok := e.(string); ok {
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list[i] = es
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continue
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}
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return errors.Errorf(`invalid list element type: expected string, got %T at element %d`, e, i)
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}
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case []string:
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list = x
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case CertificateChain:
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certs := make([]*x509.Certificate, len(x.certs))
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copy(certs, x.certs)
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*c = CertificateChain{
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certs: certs,
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}
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return nil
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default:
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return errors.Errorf(`invalid type for CertificateChain: %T`, v)
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}
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certs := make([]*x509.Certificate, len(list))
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for i, e := range list {
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buf, err := base64.DecodeString(e)
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if err != nil {
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return errors.Wrap(err, `failed to base64 decode list element`)
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}
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cert, err := x509.ParseCertificate(buf)
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if err != nil {
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return errors.Wrap(err, `failed to parse certificate`)
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}
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certs[i] = cert
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}
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*c = CertificateChain{
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certs: certs,
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}
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return nil
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}
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