tokens.h

#pragma once
 
#include <xrpl/basics/contract.h>
#include <xrpl/protocol/detail/token_errors.h>
 
#include <cstdint>
#include <expected>
#include <optional>
#include <span>
#include <string>
#include <string_view>
 
namespace xrpl {
 
template <class T>
using B58Result = std::expected<T, std::error_code>;
 
enum class TokenType : std::uint8_t {
    None = 1,  // unused
    NodePublic = 28,
    NodePrivate = 32,
    AccountID = 0,
    AccountPublic = 35,
    AccountSecret = 34,
    FamilyGenerator = 41,  // unused
    FamilySeed = 33
};
 
template <class T>
[[nodiscard]] std::optional<T>
parseBase58(std::string const& s);
 
template <class T>
[[nodiscard]] std::optional<T>
parseBase58(TokenType type, std::string const& s);

[[nodiscard]] std::string
encodeBase58Token(TokenType type, void const* token, std::size_t size);
 
[[nodiscard]] std::string
decodeBase58Token(std::string const& s, TokenType type);
 
namespace b58_ref {
// The reference version does not use gcc extensions (int128 in particular)
[[nodiscard]] std::string
encodeBase58Token(TokenType type, void const* token, std::size_t size);
 
[[nodiscard]] std::string
decodeBase58Token(std::string const& s, TokenType type);
 
namespace detail {
// Expose detail functions for unit tests only
std::string
encodeBase58(void const* message, std::size_t size, void* temp, std::size_t tempSize);
 
std::string
decodeBase58(std::string const& s);
}  // namespace detail
}  // namespace b58_ref
 
#ifndef _MSC_VER
namespace b58_fast {
// Use the fast version (10-15x faster) is using gcc extensions (int128 in
// particular)
[[nodiscard]] B58Result<std::span<std::uint8_t>>
encodeBase58Token(
    TokenType tokenType,
    std::span<std::uint8_t const> input,
    std::span<std::uint8_t> out);
 
[[nodiscard]] B58Result<std::span<std::uint8_t>>
decodeBase58Token(TokenType type, std::string_view s, std::span<std::uint8_t> outBuf);
 
// This interface matches the old interface, but requires additional allocation
[[nodiscard]] std::string
encodeBase58Token(TokenType type, void const* token, std::size_t size);
 
// This interface matches the old interface, but requires additional allocation
[[nodiscard]] std::string
decodeBase58Token(std::string const& s, TokenType type);
 
namespace detail {
// Expose detail functions for unit tests only
B58Result<std::span<std::uint8_t>>
b256ToB58Be(std::span<std::uint8_t const> input, std::span<std::uint8_t> out);
 
B58Result<std::span<std::uint8_t>>
b58ToB256Be(std::string_view input, std::span<std::uint8_t> out);
}  // namespace detail
 
}  // namespace b58_fast
#endif  // _MSC_VER
}  // namespace xrpl