"github.com/minio/kms-go/kes"
)

// PolicyManager is the generic interface that handles KMS policy] operations
type PolicyManager interface {
	// DescribePolicy describes a policy by returning its metadata.
	// e.g. who created the policy at which point in time.
	DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error)

	// GetPolicy gets a policy from KMS.

	return c.client.HMAC(context.Background(), keyID, msg)
}

// DescribePolicy describes a policy by returning its metadata.
// e.g. who created the policy at which point in time.
func (c *kesClient) DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.DescribePolicy(ctx, policy)
}

// ListPolicies returns an iterator over all policy names.

		return
	}
	manager, ok := GlobalKMS.(kms.PolicyManager)
	if !ok {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
		return
	}
	policy, err := manager.DescribePolicy(ctx, r.Form.Get("policy"))
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}
	p, err := json.Marshal(policy)
	if err != nil {