certificates/scep/provisioner.go
Herman Slatman 8fc3a46387
Refactor the SCEP authority initialization
Instead of relying on an intermediate `scep.Service` struct,
initialize the `scep.Authority` directly. This removes one redundant
layer of indirection.
2023-06-01 15:50:51 +02:00

48 lines
1.4 KiB
Go

package scep
import (
"context"
"crypto"
"crypto/x509"
"errors"
"time"
"github.com/smallstep/certificates/authority/provisioner"
)
// Provisioner is an interface that implements a subset of the provisioner.Interface --
// only those methods required by the SCEP api/authority.
type Provisioner interface {
AuthorizeSign(ctx context.Context, token string) ([]provisioner.SignOption, error)
GetName() string
DefaultTLSCertDuration() time.Duration
GetOptions() *provisioner.Options
GetCapabilities() []string
ShouldIncludeRootInChain() bool
GetDecrypter() (*x509.Certificate, crypto.Decrypter)
GetContentEncryptionAlgorithm() int
ValidateChallenge(ctx context.Context, challenge, transactionID string) error
}
// ContextKey is the key type for storing and searching for SCEP request
// essentials in the context of a request.
type ContextKey string
const (
// ProvisionerContextKey provisioner key
ProvisionerContextKey = ContextKey("provisioner")
)
// provisionerFromContext searches the context for a SCEP provisioner.
// Returns the provisioner or an error.
func provisionerFromContext(ctx context.Context) (Provisioner, error) {
val := ctx.Value(ProvisionerContextKey)
if val == nil {
return nil, errors.New("provisioner expected in request context")
}
p, ok := val.(Provisioner)
if !ok || p == nil {
return nil, errors.New("provisioner in context is not a SCEP provisioner")
}
return p, nil
}