1 files changed, 86 insertions, 0 deletions
diff --git a/dev/Kernel/KernelKit/User.h b/dev/Kernel/KernelKit/User.h
new file mode 100644
index 00000000..2fb832d4
--- /dev/null
+++ b/dev/Kernel/KernelKit/User.h
@@ -0,0 +1,86 @@
+/* -------------------------------------------
+
+ Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#ifndef INC_USER_H
+#define INC_USER_H
+
+#include <CompilerKit/CompilerKit.h>
+#include <KernelKit/LPC.h>
+#include <NewKit/KString.h>
+#include <NewKit/Defines.h>
+
+///! We got the Super, standard user (%s format) and guest user,
+///! all are used to make authorization operations on the OS.
+#define kSuperUser "OS AUTHORITY/SUPER/%s"
+#define kGuestUser "OS AUTHORITY/GUEST/%s"
+#define kFmtUser   "OS AUTHORITY/STD/%s"
+
+#define kUsersDir "/usr/"
+
+#define kMaxUserNameLen	 (255U)
+#define kMaxUserTokenLen (255U)
+
+namespace Kernel
+{
+	class User;
+
+	enum class UserRingKind
+	{
+		kRingInvalid   = 0,
+		kRingStdUser   = 1,
+		kRingSuperUser = 2,
+		kRingGuestUser = 5,
+		kRingCount	   = 3,
+	};
+
+	typedef Char* UserPublicKey;
+
+	/// @brief User class.
+	class User final
+	{
+	public:
+		explicit User() = delete;
+
+		User(const Int32& sel, const Char* username);
+		User(const UserRingKind& kind, const Char* username);
+
+		~User();
+
+	public:
+		ZKA_COPY_DEFAULT(User);
+
+	public:
+		bool operator==(const User& lhs);
+		bool operator!=(const User& lhs);
+
+	public:
+		/// @brief Get software ring
+		const UserRingKind& Ring() noexcept;
+
+		/// @brief Get user name
+		Char* Name() noexcept;
+
+		/// @brief Is he a standard user?
+		Bool IsStdUser() noexcept;
+
+		/// @brief Is she a super user?
+		Bool IsSuperUser() noexcept;
+
+		/// @brief Saves a password from the public key.
+		Bool Save(const UserPublicKey password) noexcept;
+
+		/// @brief Checks if a password matches the **password**.
+		/// @param password the password to check.
+		Bool Matches(const UserPublicKey password) noexcept;
+
+	private:
+		UserRingKind mUserRing{UserRingKind::kRingStdUser};
+		Char		 mUserName[kMaxUserNameLen] = {0};
+		Char		 mUserKey[kMaxUserTokenLen] = {0};
+	};
+} // namespace Kernel
+
+#endif /* ifndef INC_USER_H */