[PostFormJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostForm.java
 [PostFormKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/PostForm.kt
 [PostMultipartJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostMultipart.java

		return auth.Credentials{}, ErrAccessDenied
	}

	return user, ErrNone
}

func parseForm(r *http.Request) error {
	if err := r.ParseForm(); err != nil {
		return err
	}
	for k, v := range r.PostForm {
		if _, ok := r.Form[k]; !ok {
			r.Form[k] = v
		}
	}
	return nil
}

// getTokenSigningKey returns secret key used to sign JWT session tokens
func getTokenSigningKey() (string, error) {