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Created January 28, 2023 18:02
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "./SimpleGovernance.sol";
* @title SelfiePool
* @author Damn Vulnerable DeFi (
contract SelfiePool is ReentrancyGuard {
using Address for address;
ERC20Snapshot public token;
SimpleGovernance public governance;
event FundsDrained(address indexed receiver, uint256 amount);
modifier onlyGovernance() {
require(msg.sender == address(governance), "Only governance can execute this action");
constructor(address tokenAddress, address governanceAddress) {
token = ERC20Snapshot(tokenAddress);
governance = SimpleGovernance(governanceAddress);
function flashLoan(uint256 borrowAmount) external nonReentrant {
uint256 balanceBefore = token.balanceOf(address(this));
require(balanceBefore >= borrowAmount, "Not enough tokens in pool");
token.transfer(msg.sender, borrowAmount);
require(msg.sender.isContract(), "Sender must be a deployed contract");
uint256 balanceAfter = token.balanceOf(address(this));
require(balanceAfter >= balanceBefore, "Flash loan hasn't been paid back");
function drainAllFunds(address receiver) external onlyGovernance {
uint256 amount = token.balanceOf(address(this));
token.transfer(receiver, amount);
emit FundsDrained(receiver, amount);
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