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@Turupawn
Created April 4, 2022 00:13
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Pair {
function sync() external;
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
}
contract MyERC20 is Context, IERC20, IERC20Metadata, Ownable {
// Openzeppelin variables
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
// My variables
bool private inSwap;
uint256 internal _marketingFeeCollected;
uint256 internal _donationFeeCollected;
uint256 internal _liquidityFeeCollected;
uint256 public minTokensBeforeSwap;
address public marketing_wallet;
address public donation_wallet;
address public liquidity_wallet;
IUniswapV2Router02 public router;
address public pair;
uint public _feeDecimal = 2;
// index 0 = buy fee, index 1 = sell fee, index 2 = p2p fee
uint[] public _marketingFee;
uint[] public _donationFee;
uint[] public _liquidityFee;
bool public swapEnabled = true;
bool public isFeeActive = false;
mapping(address => bool) public isTaxless;
mapping(address => bool) public isMaxTxExempt;
mapping(address => bool) public blacklist;
uint public maxTxAmount;
uint public maxWalletAmount;
event Swap(uint swaped, uint sentToMarketing, uint sentToDonation);
event AutoLiquify(uint256 amountETH, uint256 amountTokens);
// Openzeppelin functions
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory p_name, string memory p_symbol,
address p_marketing_wallet, address p_donation_wallet, address p_liquidity_wallet,
uint p_total_supply,
uint p_max_wallet_percentage, uint p_max_tx_percentage,
uint p_marketing_fee, uint p_donation_fee, uint p_liquidity_fee) {
// Editable
string memory e_name = p_name;
string memory e_symbol = p_symbol;
marketing_wallet = p_marketing_wallet;
donation_wallet = p_donation_wallet;
liquidity_wallet = p_liquidity_wallet;
uint e_totalSupply = p_total_supply;
minTokensBeforeSwap = p_total_supply; // Off by default
// End editable
_name = e_name;
_symbol = e_symbol;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
router = _uniswapV2Router;
_marketingFee.push(p_marketing_fee);
_marketingFee.push(p_marketing_fee);
_marketingFee.push(0);
_donationFee.push(p_donation_fee);
_donationFee.push(p_donation_fee);
_donationFee.push(0);
_liquidityFee.push(p_liquidity_fee);
_liquidityFee.push(p_liquidity_fee);
_liquidityFee.push(0);
isTaxless[msg.sender] = true;
isTaxless[address(this)] = true;
isTaxless[marketing_wallet] = true;
isTaxless[donation_wallet] = true;
isTaxless[liquidity_wallet] = true;
isTaxless[address(0)] = true;
isMaxTxExempt[msg.sender] = true;
isMaxTxExempt[address(this)] = true;
isMaxTxExempt[marketing_wallet] = true;
isMaxTxExempt[donation_wallet] = true;
isMaxTxExempt[liquidity_wallet] = true;
isMaxTxExempt[pair] = true;
isMaxTxExempt[address(router)] = true;
_mint(msg.sender, e_totalSupply);
setMaxWalletPercentage(p_max_wallet_percentage); // 1%
setMaxTxPercentage(p_max_tx_percentage); // 0.1%
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, _allowances[owner][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = _allowances[owner][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
// My implementation
require(!blacklist[from] && !blacklist[to], "sender or recipient is blacklisted!");
require(isMaxTxExempt[from] || amount <= maxTxAmount, "Transfer exceeds limit!");
require(isMaxTxExempt[to] || balanceOf(to) + amount <= maxWalletAmount, "Max Wallet Limit Exceeds!");
if (swapEnabled && !inSwap && from != pair) {
swap();
}
uint256 feesCollected;
if (isFeeActive && !isTaxless[from] && !isTaxless[to] && !inSwap) {
bool sell = to == pair;
bool p2p = from != pair && to != pair;
feesCollected = calculateFee(p2p ? 2 : sell ? 1 : 0, amount);
}
amount -= feesCollected;
_balances[from] -= feesCollected;
_balances[address(this)] += feesCollected;
// End my implementation
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
*/
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Spend `amount` form the allowance of `owner` toward `spender`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
// My functions
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
function sendViaCall(address payable _to, uint amount) private {
(bool sent, bytes memory data) = _to.call{value: amount}("");
data;
require(sent, "Failed to send Ether");
}
function swap() private lockTheSwap {
// How much are we swaping?
uint totalCollected = _marketingFeeCollected + _donationFeeCollected + _liquidityFeeCollected;
uint amountToSwap = _marketingFeeCollected + _donationFeeCollected + (_liquidityFeeCollected / 2);
uint amountTokensToLiquidity = totalCollected - amountToSwap;
if(minTokensBeforeSwap > totalCollected) return;
// Let's swap for eth now
address[] memory sellPath = new address[](2);
sellPath[0] = address(this);
sellPath[1] = router.WETH();
uint balanceBefore = address(this).balance;
_approve(address(this), address(router), amountToSwap);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
sellPath,
address(this),
block.timestamp
);
uint amountFee = address(this).balance - balanceBefore;
// Send to marketing
uint amountMarketing = (amountFee * _marketingFeeCollected) / totalCollected;
if(amountMarketing > 0) sendViaCall(payable(marketing_wallet), amountMarketing);
// Send to donations
uint amountDonation = (amountFee * _donationFeeCollected) / totalCollected;
if(amountDonation > 0) sendViaCall(payable(donation_wallet), amountDonation);
// Send to LP
uint256 amountETHLiquidity = address(this).balance;
if(amountTokensToLiquidity > 0){
_approve(address(this), address(router), amountTokensToLiquidity);
router.addLiquidityETH{value: amountETHLiquidity}(
address(this),
amountTokensToLiquidity,
0,
0,
liquidity_wallet,
block.timestamp
);
emit AutoLiquify(amountETHLiquidity, amountTokensToLiquidity);
}
_marketingFeeCollected = 0;
_donationFeeCollected = 0;
_liquidityFeeCollected = 0;
emit Swap(totalCollected, amountMarketing, amountDonation);
}
function calculateFee(uint256 feeIndex, uint256 amount) internal returns(uint256) {
uint256 marketingFee = (amount * _marketingFee[feeIndex]) / (10**(_feeDecimal + 2));
uint256 donationFee = (amount * _donationFee[feeIndex]) / (10**(_feeDecimal + 2));
uint256 liquidityFee = (amount * _liquidityFee[feeIndex]) / (10**(_feeDecimal + 2));
_marketingFeeCollected += marketingFee;
_donationFeeCollected += donationFee;
_liquidityFeeCollected += liquidityFee;
return marketingFee + donationFee + liquidityFee;
}
function setMaxTxPercentage(uint256 percentage) public onlyOwner {
maxTxAmount = (_totalSupply * percentage) / 10000;
}
function setMaxWalletPercentage(uint256 percentage) public onlyOwner {
maxWalletAmount = (_totalSupply * percentage) / 10000;
}
function setMinTokensBeforeSwap(uint256 amount) external onlyOwner {
minTokensBeforeSwap = amount;
}
function setMarketingWallet(address wallet) external onlyOwner {
marketing_wallet = wallet;
}
function setDonationWallet(address wallet) external onlyOwner {
donation_wallet = wallet;
}
function setLiquidityWallet(address wallet) external onlyOwner {
liquidity_wallet = wallet;
}
function setMarketingFees(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_marketingFee[0] = buy;
_marketingFee[1] = sell;
_marketingFee[2] = p2p;
}
function setDonationFees(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_donationFee[0] = buy;
_donationFee[1] = sell;
_donationFee[2] = p2p;
}
function setLiquidityFees(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_liquidityFee[0] = buy;
_liquidityFee[1] = sell;
_liquidityFee[2] = p2p;
}
function setSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function setFeeActive(bool value) external onlyOwner {
isFeeActive = value;
}
function setTaxless(address account, bool value) external onlyOwner {
isTaxless[account] = value;
}
function setMaxTxExempt(address account, bool value) external onlyOwner {
isMaxTxExempt[account] = value;
}
/*
function setBlacklist(address account, bool isBlacklisted) external onlyOwner {
blacklist[account] = isBlacklisted;
}
*/
function multiBlacklist(address[] memory addresses, bool _bool) external onlyOwner {
for (uint256 i = 0;i < addresses.length; i++){
blacklist[addresses[i]] = _bool;
}
}
fallback() external payable {}
receive() external payable {}
}
contract TimelockDemo {
}
contract Factory
{
function createToken(string memory p_name, string memory p_symbol,
address p_marketing_wallet, address p_donation_wallet, address p_liquidity_wallet,
uint p_total_supply,
uint p_max_wallet_percentage, uint p_max_tx_percentage,
uint marketing_fee, uint donation_fee, uint liquidity_fee) public returns(address)
{
MyERC20 token_contract = new MyERC20(p_name, p_symbol,
p_marketing_wallet, p_donation_wallet, p_liquidity_wallet,
p_total_supply,
p_max_wallet_percentage, p_max_tx_percentage,
marketing_fee, donation_fee, liquidity_fee);
return address(token_contract);
}
}
contract Maestro {
bytes public my_calldata;
address public new_contract_address;
function getCalldata(string memory param1, uint param2) public pure returns(bytes memory)
{
bytes4 signature = bytes4(keccak256("createContract(string,uint256)"));
return abi.encodeWithSelector(signature, param1, param2);
}
function launch(address factory_address, bytes calldata data) public
{
(bool success, bytes memory returnData) = address(factory_address).call(data);
require(success, "low-level call failed");
new_contract_address = bytesToAddress(returnData);
}
function bytesToAddress(bytes memory bys) private pure returns (address addr) {
assembly {
addr := mload(add(bys,32))
}
}
}
/*
web3.eth.abi.encodeFunctionCall({
name: 'createToken',
type: 'function',
inputs: [{
type: 'string',
name: 'name'
},{
type: 'string',
name: 'symbol'
},{
type: 'uint256',
name: 'supply'
},{
type: 'address',
name: 'creator'
}]
}, ['Mi token', 'MT', '1000000000000000000000000', '0xb6F5414bAb8d5ad8F33E37591C02f7284E974FcB']);
*/
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