UserMgr.h

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/* ========================================
 
 Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#ifndef INC_USER_H
#define INC_USER_H
 
/* ========================================
 
 Revision History:
 
 04/03/25: Set users directory as /libSystem/ instead of /usr/
 
 ======================================== */
 
#include <CompilerKit/CompilerKit.h>
#include <KernelKit/KPC.h>
#include <NeKit/Config.h>
#include <NeKit/KString.h>

#define kMgmtUser "NEKERNEL/MGMT/%s"
#define kGuestUser "NEKERNEL/GUEST/%s"
#define kStdUser "NEKERNEL/STD/%s"
 
#define kUsersDir "/users/"
 
#define kMaxUserNameLen (256U)
#define kMaxUserTokenLen (256U)
 
namespace Kernel {
class User;
 
enum class UserRingKind : Int32 {
  kRingInvalid   = 0,
  kRingStdUser   = 444,
  kRingSuperUser = 666,
  kRingGuestUser = 777,
  kRingCount     = 3,
};
 
typedef Char* UserPublicKey;
typedef Char  UserPublicKeyType;

class User final {
 public:
  User() = delete;
 
  User(const Int32& sel, const Char* username);
  User(const UserRingKind& kind, const Char* username);
 
  ~User();
 
 public:
  NE_COPY_DEFAULT(User)
 
 public:
  bool operator==(const User& lhs);
  bool operator!=(const User& lhs);
 
 public:
  const UserRingKind& Ring();

  Char* Name();

  Bool IsStdUser();

  Bool IsSuperUser();

  Bool Save(const UserPublicKey password);

  Bool Login(const UserPublicKey password);
 
 private:
  UserRingKind mUserRing{UserRingKind::kRingStdUser};
  Char         mUserName[kMaxUserNameLen] = {0};
  UInt64       mUserFNV{0UL};
};
 
inline User* kCurrentUser = nullptr;
inline User* kRootUser    = nullptr;
}  // namespace Kernel
 
#endif /* ifndef INC_USER_H */