From d48cbe75ef29a9c67c9d176bf58e56ea6448fb9e Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Date: Mon, 21 Oct 2024 20:23:36 +0200
Subject: IMP: Major refactor of header and source files extensions.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
---
 dev/zka/src/User.cc | 138 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 dev/zka/src/User.cc

(limited to 'dev/zka/src/User.cc')

diff --git a/dev/zka/src/User.cc b/dev/zka/src/User.cc
new file mode 100644
index 00000000..9037d729
--- /dev/null
+++ b/dev/zka/src/User.cc
@@ -0,0 +1,138 @@
+/*
+ *	========================================================
+ *
+ *  ZKA
+ * 	Copyright ZKA Web Services Co., all rights reserved.
+ *
+ *	File: User.cxx
+ * 	Purpose: User class, used to provide authentication and security.
+ *
+ * 	========================================================
+ */
+
+#include <KernelKit/User.h>
+
+#include <KernelKit/LPC.h>
+#include <NewKit/Stop.h>
+#include <KernelKit/FileMgr.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <KernelKit/Heap.h>
+
+#define cStdUser   (0xCEEF)
+#define cSuperUser (0xECCF)
+
+/// BUGS: 0
+
+namespace Kernel
+{
+	namespace Detail
+	{
+		/// \brief Constructs a password by hashing the password.
+		/// \param password password to hash.
+		/// \return the hashed password
+		const Int32 cred_construct_token(Char* password, const Char* in_password, User* user, SizeT length)
+		{
+			if (!password || !user)
+				return -1;
+
+			kcout << "Constructing password...\r";
+
+			for (Size i_pass = 0; i_pass < length; ++i_pass)
+			{
+				Char cur_chr = in_password[i_pass];
+
+				if (cur_chr == 0)
+					break;
+
+				password[i_pass] = cur_chr + (user->IsStdUser() ? cStdUser : cSuperUser);
+			}
+
+			kcout << "Done constructing password...\r";
+
+			return 0;
+		}
+	} // namespace Detail
+
+	User::User(const Int32& sel, const Char* userName)
+		: fRing((RingKind)sel)
+	{
+		MUST_PASS(sel >= 0);
+		rt_copy_memory((VoidPtr)userName, this->fUserName, rt_string_len(userName));
+	}
+
+	User::User(const RingKind& ringKind, const Char* userName)
+		: fRing(ringKind)
+	{
+		rt_copy_memory((VoidPtr)userName, this->fUserName, rt_string_len(userName));
+	}
+
+	User::~User() = default;
+
+	Bool User::TrySave(const Char* password_to_fill) noexcept
+	{
+		if (!password_to_fill ||
+			*password_to_fill == 0)
+			return No;
+
+		SizeT len = rt_string_len(password_to_fill);
+
+		Char* password = new Char[len];
+		MUST_PASS(password);
+
+		// fill data first, generate hash.
+		// return false on error.
+
+		rt_copy_memory((VoidPtr)password_to_fill, password, len);
+
+		if (!Detail::cred_construct_token(password, password_to_fill, this, len))
+		{
+			delete[] password;
+			password = nullptr;
+
+			return No;
+		}
+
+		// then store password.
+
+		rt_copy_memory(password, this->fUserToken, rt_string_len(password_to_fill));
+
+		delete[] password;
+		password = nullptr;
+
+		kcout << "Saved password successfully...\r";
+
+		return Yes;
+	}
+
+	Bool User::operator==(const User& lhs)
+	{
+		return lhs.fRing == this->fRing;
+	}
+
+	Bool User::operator!=(const User& lhs)
+	{
+		return lhs.fRing != this->fRing;
+	}
+
+	Char* User::Name() noexcept
+	{
+		return this->fUserName;
+	}
+
+	/// @brief Returns the user's ring.
+	/// @return The king of ring the user is attached to.
+	const RingKind& User::Ring() noexcept
+	{
+		return this->fRing;
+	}
+
+	Bool User::IsStdUser() noexcept
+	{
+		return this->Ring() == RingKind::kRingStdUser;
+	}
+
+	Bool User::IsSuperUser() noexcept
+	{
+		return this->Ring() == RingKind::kRingSuperUser;
+	}
+} // namespace Kernel
-- 
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