DBHelpers.hpp

Go to the documentation of this file.

//------------------------------------------------------------------------------
/*
    This file is part of clio: https://github.com/XRPLF/clio
    Copyright (c) 2022, the clio developers.
 
    Permission to use, copy, modify, and distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.
 
    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

#pragma once
 
#include "util/Assert.hpp"
 
#include <boost/container/flat_set.hpp>
#include <xrpl/basics/Blob.h>
#include <xrpl/basics/Log.h>
#include <xrpl/basics/StringUtilities.h>
#include <xrpl/basics/base_uint.h>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STAccount.h>
#include <xrpl/protocol/STLedgerEntry.h>
#include <xrpl/protocol/Serializer.h>
#include <xrpl/protocol/TxMeta.h>
 
#include <cstddef>
#include <cstdint>
#include <optional>
#include <string>

struct AccountTransactionsData {
    boost::container::flat_set<ripple::AccountID> accounts;
    std::uint32_t ledgerSequence{};
    std::uint32_t transactionIndex{};
    ripple::uint256 txHash;

    AccountTransactionsData(ripple::TxMeta const& meta, ripple::uint256 const& txHash)
        : accounts(meta.getAffectedAccounts())
        , ledgerSequence(meta.getLgrSeq())
        , transactionIndex(meta.getIndex())
        , txHash(txHash)
    {
    }
 
    AccountTransactionsData() = default;
};

struct NFTTransactionsData {
    ripple::uint256 tokenID;
    std::uint32_t ledgerSequence;
    std::uint32_t transactionIndex;
    ripple::uint256 txHash;

    NFTTransactionsData(
        ripple::uint256 const& tokenID,
        ripple::TxMeta const& meta,
        ripple::uint256 const& txHash
    )
        : tokenID(tokenID)
        , ledgerSequence(meta.getLgrSeq())
        , transactionIndex(meta.getIndex())
        , txHash(txHash)
    {
    }
};

struct NFTsData {
    ripple::uint256 tokenID;
    std::uint32_t ledgerSequence;
    std::optional<std::uint32_t> transactionIndex;
    ripple::AccountID owner;
    std::optional<ripple::Blob> uri;
    bool isBurned = false;
    bool onlyUriChanged = false;  // Whether only the URI was changed

    NFTsData(
        ripple::uint256 const& tokenID,
        ripple::AccountID const& owner,
        ripple::Blob const& uri,
        ripple::TxMeta const& meta
    )
        : tokenID(tokenID)
        , ledgerSequence(meta.getLgrSeq())
        , transactionIndex(meta.getIndex())
        , owner(owner)
        , uri(uri)
    {
    }

    NFTsData(
        ripple::uint256 const& tokenID,
        ripple::AccountID const& owner,
        ripple::TxMeta const& meta,
        bool isBurned
    )
        : tokenID(tokenID)
        , ledgerSequence(meta.getLgrSeq())
        , transactionIndex(meta.getIndex())
        , owner(owner)
        , isBurned(isBurned)
    {
    }

    NFTsData(
        ripple::uint256 const& tokenID,
        std::uint32_t const ledgerSequence,
        ripple::AccountID const& owner,
        ripple::Blob const& uri
    )
        : tokenID(tokenID), ledgerSequence(ledgerSequence), owner(owner), uri(uri)
    {
    }

    NFTsData(ripple::uint256 const& tokenID, ripple::TxMeta const& meta, ripple::Blob const& uri)
        : tokenID(tokenID)
        , ledgerSequence(meta.getLgrSeq())
        , transactionIndex(meta.getIndex())
        , uri(uri)
        , onlyUriChanged(true)
    {
    }
};

struct MPTHolderData {
    ripple::uint192 mptID;
    ripple::AccountID holder;
};

template <typename T>
inline bool
isDirNode(T const& object)
{
    static constexpr auto kMIN_SIZE_REQUIRED = 3;
    if (std::size(object) < kMIN_SIZE_REQUIRED)
        return false;
 
    static constexpr short kDIR_NODE_SPACE_KEY = 0x0064;
    short const spaceKey = (object.data()[1] << 8) | object.data()[2];
    return spaceKey == kDIR_NODE_SPACE_KEY;
}

template <typename T, typename R>
inline bool
isBookDir(T const& key, R const& object)
{
    if (!isDirNode(object))
        return false;
 
    ripple::STLedgerEntry const sle{ripple::SerialIter{object.data(), object.size()}, key};
    return !sle[~ripple::sfOwner].has_value();
}

template <typename T>
inline ripple::uint256
getBookBase(T const& key)
{
    static constexpr size_t kEY_SIZE = 24;
 
    ASSERT(key.size() == ripple::uint256::size(), "Invalid key size {}", key.size());
 
    ripple::uint256 ret;
    for (size_t i = 0; i < kEY_SIZE; ++i)
        ret.data()[i] = key.data()[i];
 
    return ret;
}

inline std::string
uint256ToString(ripple::uint256 const& input)
{
    return {reinterpret_cast<char const*>(input.data()), ripple::uint256::size()};
}

static constexpr std::uint32_t kRIPPLE_EPOCH_START = 946684800;