func (a *Auth) ValidateRequest(r *http.Request) error {
	// ensure we can process this request
	if r.TLS == nil || r.TLS.VerifiedChains == nil {
		return errors.New("no cert chain detected")
	}

	// TODO: Figure out if having multiple validated peer leaf certs is possible. For now, only validate
	// one cert, and make sure it matches the first peer certificate
	if r.TLS.PeerCertificates != nil {
		if !bytes.Equal(r.TLS.PeerCertificates[0].Raw, r.TLS.VerifiedChains[0][0].Raw) {
			return errors.New("first peer certificate not first verified chain leaf")
		}
	}

	return nil
}
func (a *Auth) ValidateRequest(r *http.Request) error {
	// ensure we can process this request
	if r.TLS == nil || r.TLS.VerifiedChains == nil {
		return errors.New("no cert chain detected")
	}

	// TODO: Figure out if having multiple validated peer leaf certs is possible. For now, only validate
	// one cert, and make sure it matches the first peer certificate
	if r.TLS.PeerCertificates != nil {
		if !bytes.Equal(r.TLS.PeerCertificates[0].Raw, r.TLS.VerifiedChains[0][0].Raw) {
			return errors.New("first peer certificate not first verified chain leaf")
		}
	}

	return nil
}
// ValidateRequest perfomrs verification on the TLS certs and chain