kdbx_header.hh

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/*
 * libkeepass - KeePass key database importer/exporter
 * Copyright (C) 2014 Christian Kindahl
 * Copyright (C) 2024 Dominik Krümpelmann
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
#include <array>
#include <cstdint>
#include <istream>
#include <string>
 
#include "libkeepass/database.hh"
#include "libkeepass/detail/constants.hh"
#include "libkeepass/export.hh"
 
namespace keepass {
 
class LIBKEEPASS_API KdbxHeader final {
public:
  static constexpr uint32_t kSignature0 = detail::kKdbxSignature0;
  static constexpr uint32_t kSignature1 = detail::kKdbxSignature1;
 
  static constexpr uint32_t kVersionCriticalMask = detail::kKdbxVersionCriticalMask;
  static constexpr uint32_t kVersion3 = detail::kKdbxVersion3;
  static constexpr uint32_t kVersion4 = detail::kKdbxVersion4;
 
 
  static uint32_t ReadVersion(std::istream& src);
 
  static bool IsKdbx4(uint32_t version) { return (version & kVersionCriticalMask) == kVersion4; }
 
 
  static std::array<uint8_t, 32> Parse3(std::istream& src, Database& db);
 
 
  static void Parse4(std::istream& src, Database& db);
 
 
  static std::string Write3(const Database& db, const std::array<uint8_t, 32>& content_start_bytes);
 
 
  static std::string Write4(const Database& db, bool kdbx41);
};
 
} // namespace keepass