MD5.h

/* miktex/Core/MD5.h:                                   -*- C++ -*-
 
   Copyright (C) 1996-2021 Christian Schenk
 
   This file is part of the MiKTeX Core Library.
 
   The MiKTeX Core Library 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 2, or
   (at your option) any later version.
 
   The MiKTeX Core Library 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 the MiKTeX Core Library; if not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA. */
 
#pragma once
 
#if !defined(F16928B95BB64B778B3E396992FFFCDD)
#define F16928B95BB64B778B3E396992FFFCDD
 
#include <miktex/Core/config.h>
 
#include <algorithm>
#include <array>
#include <ostream>
#include <string>
#include <vector>
 
#include <miktex/Util/PathName>
 
#include "Utils.h"
 
#include <md5.h>
 
MIKTEX_CORE_BEGIN_NAMESPACE;
 
class MD5 :
  public std::array<md5_byte_t, 16>
{
public:
  static MIKTEXCORECEEAPI(MD5) FromFile(const MiKTeX::Util::PathName& path);
 
public:
  static MIKTEXCORECEEAPI(MD5) FromChars(const std::string& s);
 
public:
  static MIKTEXCORECEEAPI(MD5) Parse(const std::string& hexString);
 
public:
  std::string ToString() const
  {
    return Utils::Hexify(&this->front(), this->size());
  }
};
 
class MD5Builder
{
public:
  MD5Builder()
  {
    Init();
  }
 
public:
  MD5Builder(const MD5Builder& other) = default;
 
public:
  MD5Builder& operator=(const MD5Builder& other) = default;
 
public:
  MD5Builder(MD5Builder&& other) = default;
 
public:
  MD5Builder& operator=(MD5Builder&& other) = default;
 
public:
  ~MD5Builder() = default;
 
public:
  void Init()
  {
    md5_init(&ctx);
  }
 
public:
  void Update(const void* ptr, size_t size)
  {
    md5_append(&ctx, reinterpret_cast<const md5_byte_t*>(ptr), static_cast<int>(size));
  }
 
public:
  MD5 Final()
  {
    md5_finish(&ctx, &md5[0]);
    return md5;
  }
 
public:
  MD5 GetMD5() const
  {
    return md5;
  }
 
private:
  md5_state_t ctx;
 
private:
  MD5 md5;
};
 
inline std::ostream& operator<<(std::ostream& os, const MD5& md5)
{
  return os << md5.ToString();
}
 
 
MIKTEX_CORE_END_NAMESPACE;
 
#endif