TransferOwnership feature

src/TransferOwnership.sol

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
+
+contract TransferOwnership is Ownable(msg.sender), ReentrancyGuard {
+    mapping(address => uint256) private _balances;
+
+    event Deposit(address indexed depositor, uint256 amount);
+    event Withdraw(address indexed withdrawer, uint256 amount);
+    event ownershipTransferred(address indexed owner, address indexed newOwner);
+
+    function deposit() public payable {
+        require(msg.value > 0, "Deposit amount must be greater than 0");
+        _balances[msg.sender] += msg.value;
+        emit Deposit(msg.sender, msg.value);
+    }
+
+    function isContract(address _addr) private view returns (bool){
+        uint32 size;
+        assembly {
+            size := extcodesize(_addr)
+        }
+        return (size > 0);
+    }
+
+    function withdraw(uint256 amount) public nonReentrant {
+        require(amount <= _balances[msg.sender], "Insufficient balance");
+
+        // Check if the recipient address is not a contract
+        require(!isContract(msg.sender), "Contract addresses are not allowed to withdraw funds");
+
+        _balances[msg.sender] -= amount;
+        payable(msg.sender).transfer(amount);
+        emit Withdraw(msg.sender, amount);
+    }
+
+
+    function transferOwnership(address newOwner) public onlyOwner override {
+        require(newOwner == address(0),"invalid address");
+        _transferOwnership(newOwner);
+        emit ownershipTransferred(msg.sender, newOwner);
+    }
+
+    function getBalance() public view returns (uint256) {
+        return _balances[msg.sender];
+    }
+}