smallstep-certificates/authority/provisioner/provisioner.go
2019-04-10 13:50:35 -07:00

100 lines
2.4 KiB
Go

package provisioner
import (
"crypto/x509"
"encoding/json"
"strings"
"github.com/pkg/errors"
)
// Interface is the interface that all provisioner types must implement.
type Interface interface {
GetID() string
GetTokenID(token string) (string, error)
GetName() string
GetType() Type
GetEncryptedKey() (kid string, key string, ok bool)
Init(config Config) error
AuthorizeSign(token string) ([]SignOption, error)
AuthorizeRenewal(cert *x509.Certificate) error
AuthorizeRevoke(token string) error
}
// Audiences stores all supported audiences by request type.
type Audiences struct {
Sign []string
Revoke []string
}
// All returns all supported audiences across all request types in one list.
func (a *Audiences) All() []string {
return append(a.Sign, a.Revoke...)
}
// Type indicates the provisioner Type.
type Type int
const (
noopType Type = 0
// TypeJWK is used to indicate the JWK provisioners.
TypeJWK Type = 1
// TypeOIDC is used to indicate the OIDC provisioners.
TypeOIDC Type = 2
// RevokeAudienceKey is the key for the 'revoke' audiences in the audiences map.
RevokeAudienceKey = "revoke"
// SignAudienceKey is the key for the 'sign' audiences in the audiences map.
SignAudienceKey = "sign"
)
// Config defines the default parameters used in the initialization of
// provisioners.
type Config struct {
// Claims are the default claims.
Claims Claims
// Audiences are the audiences used in the default provisioner, (JWK).
Audiences Audiences
}
type provisioner struct {
Type string `json:"type"`
}
// List represents a list of provisioners.
type List []Interface
// UnmarshalJSON implements json.Unmarshaler and allows to unmarshal a list of a
// interfaces into the right type.
func (l *List) UnmarshalJSON(data []byte) error {
ps := []json.RawMessage{}
if err := json.Unmarshal(data, &ps); err != nil {
return errors.Wrap(err, "error unmarshaling provisioner list")
}
*l = List{}
for _, data := range ps {
var typ provisioner
if err := json.Unmarshal(data, &typ); err != nil {
return errors.Errorf("error unmarshaling provisioner")
}
var p Interface
switch strings.ToLower(typ.Type) {
case "jwk":
p = &JWK{}
case "oidc":
p = &OIDC{}
default:
return errors.Errorf("provisioner type %s not supported", typ.Type)
}
if err := json.Unmarshal(data, p); err != nil {
return errors.Errorf("error unmarshaling provisioner")
}
*l = append(*l, p)
}
return nil
}