lokinet/llarp/service/auth.hpp

#pragma once
#include <optional>
#include <string>
#include <functional>
#include "address.hpp"
#include "handler.hpp"

namespace llarp::service
{
  /// authentication status
  enum AuthResult
  {
    /// explicitly accepted
    eAuthAccepted = 0,
    /// explicitly rejected
    eAuthRejected = 1,
    /// attempt failed
    eAuthFailed = 2,
    /// attempt rate limited
    eAuthRateLimit = 3,
    /// need mo munny
    eAuthPaymentRequired = 4
  };

  /// maybe get auth result from string
  std::optional<AuthResult>
  ParseAuthResult(std::string data);

  struct IAuthPolicy
  {
    ~IAuthPolicy() = default;

    /// asynchronously determine if we accept new convotag from remote service, call hook with
    /// result later
    virtual void
    AuthenticateAsync(
        service::Address from, service::ConvoTag tag, std::function<void(AuthResult)> hook) = 0;
  };
}  // namespace llarp::service