password.h

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// Copyrights(c) 2017-2021, The Electroneum Project
// Copyrights(c) 2014-2019, The Monero Project
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
#pragma once
 
#include <string>
#include <atomic>
#include <boost/optional/optional.hpp>
#include "wipeable_string.h"
 
namespace tools
{
  class password_container
  {
  public:
    static constexpr const size_t max_password_size = 1024;

    password_container() noexcept;

    password_container(std::string&& password) noexcept;
    password_container(const epee::wipeable_string& password) noexcept;

    static boost::optional<password_container> prompt(bool verify, const char *mesage = "Password", bool hide_input = true);
    static std::atomic<bool> is_prompting;
 
    password_container(const password_container&) = delete;
    password_container(password_container&& rhs) = default;

    ~password_container() noexcept;
 
    password_container& operator=(const password_container&) = delete;
    password_container& operator=(password_container&&) = default;
 
    const epee::wipeable_string &password() const noexcept { return m_password; }
 
  private:
    epee::wipeable_string m_password;
  };
 
  struct login
  {
    login() = default;

    static boost::optional<login> parse(std::string&& userpass, bool verify, const std::function<boost::optional<password_container>(bool)> &prompt);
 
    login(const login&) = delete;
    login(login&&) = default;
    ~login() = default;
    login& operator=(const login&) = delete;
    login& operator=(login&&) = default;
 
    std::string username;
    password_container password;
  };
}