/** |
|
*Submitted for verification at BscScan.com on 20/01/2022 |
|
*/ |
|
|
|
/** |
|
*Submitted for verification at BscScan.com on 20/01/2022 |
|
*/ |
|
|
|
/** |
|
|
|
#BEE |
|
|
|
#LIQ+#RFI+#SHIB+#DOGE = #BEE |
|
|
|
#MADECOIN features: |
|
3% fee auto add to the liquidity pool to locked forever when selling |
|
2% fee auto distribute to all holders |
|
I created a black hole so #Bee token will deflate itself in supply with every transaction |
|
50% Supply is burned at start. |
|
|
|
|
|
*/ |
|
|
|
pragma solidity ^0.6.12; |
|
// SPDX-License-Identifier: Unlicensed |
|
interface IERC20 { |
|
|
|
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 `recipient`. |
|
* |
|
* Returns a boolean value indicating whether the operation succeeded. |
|
* |
|
* Emits a {Transfer} event. |
|
*/ |
|
function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, 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); |
|
} |
|
|
|
|
|
|
|
/** |
|
* @dev Wrappers over Solidity’s arithmetic operations with added overflow |
|
* checks. |
|
* |
|
* Arithmetic operations in Solidity wrap on overflow. This can easily result |
|
* in bugs, because programmers usually assume that an overflow raises an |
|
* error, which is the standard behavior in high level programming languages. |
|
* `SafeMath` restores this intuition by reverting the transaction when an |
|
* operation overflows. |
|
* |
|
* Using this library instead of the unchecked operations eliminates an entire |
|
* class of bugs, so it’s recommended to use it always. |
|
*/ |
|
|
|
library SafeMath { |
|
/** |
|
* @dev Returns the addition of two unsigned integers, reverting on |
|
* overflow. |
|
* |
|
* Counterpart to Solidity’s `+` operator. |
|
* |
|
* Requirements: |
|
* |
|
* – Addition cannot overflow. |
|
*/ |
|
function add(uint256 a, uint256 b) internal pure returns (uint256) { |
|
uint256 c = a + b; |
|
require(c >= a, “SafeMath: addition overflow”); |
|
|
|
return c; |
|
} |
|
|
|
/** |
|
* @dev Returns the subtraction of two unsigned integers, reverting on |
|
* overflow (when the result is negative). |
|
* |
|
* Counterpart to Solidity’s `-` operator. |
|
* |
|
* Requirements: |
|
* |
|
* – Subtraction cannot overflow. |
|
*/ |
|
function sub(uint256 a, uint256 b) internal pure returns (uint256) { |
|
return sub(a, b, “SafeMath: subtraction overflow”); |
|
} |
|
|
|
/** |
|
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on |
|
* overflow (when the result is negative). |
|
* |
|
* Counterpart to Solidity’s `-` operator. |
|
* |
|
* Requirements: |
|
* |
|
* – Subtraction cannot overflow. |
|
*/ |
|
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { |
|
require(b <= a, errorMessage); |
|
uint256 c = a – b; |
|
|
|
return c; |
|
} |
|
|
|
/** |
|
* @dev Returns the multiplication of two unsigned integers, reverting on |
|
* overflow. |
|
* |
|
* Counterpart to Solidity’s `*` operator. |
|
* |
|
* Requirements: |
|
* |
|
* – Multiplication cannot overflow. |
|
*/ |
|
function mul(uint256 a, uint256 b) internal pure returns (uint256) { |
|
// Gas optimization: this is cheaper than requiring ‘a’ not being zero, but the |
|
// benefit is lost if ‘b’ is also tested. |
|
// See: https://github.com/ |
|
if (a == 0) { |
|
return 0; |
|
} |
|
|
|
uint256 c = a * b; |
|
require(c / a == b, “SafeMath: multiplication overflow”); |
|
|
|
return c; |
|
} |
|
|
|
/** |
|
* @dev Returns the integer division of two unsigned integers. Reverts on |
|
* division by zero. The result is rounded towards zero. |
|
* |
|
* Counterpart to Solidity’s `/` operator. Note: this function uses a |
|
* `revert` opcode (which leaves remaining gas untouched) while Solidity |
|
* uses an invalid opcode to revert (consuming all remaining gas). |
|
* |
|
* Requirements: |
|
* |
|
* – The divisor cannot be zero. |
|
*/ |
|
function div(uint256 a, uint256 b) internal pure returns (uint256) { |
|
return div(a, b, “SafeMath: division by zero”); |
|
} |
|
|
|
/** |
|
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on |
|
* division by zero. The result is rounded towards zero. |
|
* |
|
* Counterpart to Solidity’s `/` operator. Note: this function uses a |
|
* `revert` opcode (which leaves remaining gas untouched) while Solidity |
|
* uses an invalid opcode to revert (consuming all remaining gas). |
|
* |
|
* Requirements: |
|
* |
|
* – The divisor cannot be zero. |
|
*/ |
|
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { |
|
require(b > 0, errorMessage); |
|
uint256 c = a / b; |
|
// assert(a == b * c + a % b); // There is no case in which this doesn’t hold |
|
|
|
return c; |
|
} |
|
|
|
/** |
|
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), |
|
* Reverts when dividing by zero. |
|
* |
|
* Counterpart to Solidity’s `%` operator. This function uses a `revert` |
|
* opcode (which leaves remaining gas untouched) while Solidity uses an |
|
* invalid opcode to revert (consuming all remaining gas). |
|
* |
|
* Requirements: |
|
* |
|
* – The divisor cannot be zero. |
|
*/ |
|
function mod(uint256 a, uint256 b) internal pure returns (uint256) { |
|
return mod(a, b, “SafeMath: modulo by zero”); |
|
} |
|
|
|
/** |
|
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), |
|
* Reverts with custom message when dividing by zero. |
|
* |
|
* Counterpart to Solidity’s `%` operator. This function uses a `revert` |
|
* opcode (which leaves remaining gas untouched) while Solidity uses an |
|
* invalid opcode to revert (consuming all remaining gas). |
|
* |
|
* Requirements: |
|
* |
|
* – The divisor cannot be zero. |
|
*/ |
|
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { |
|
require(b != 0, errorMessage); |
|
return a % b; |
|
} |
|
} |
|
|
|
abstract contract Context { |
|
function _msgSender() internal view virtual returns (address payable) { |
|
return msg.sender; |
|
} |
|
|
|
function _msgData() internal view virtual returns (bytes memory) { |
|
this; // silence state mutability warning without generating bytecode – see https://github.com/ethereum/solidity/issues/2691 |
|
return msg.data; |
|
} |
|
} |
|
|
|
|
|
/** |
|
* @dev Collection of functions related to the address type |
|
*/ |
|
library Address { |
|
/** |
|
* @dev Returns true if `account` is a contract. |
|
* |
|
* [IMPORTANT] |
|
* ==== |
|
* It is unsafe to assume that an address for which this function returns |
|
* false is an externally-owned account (EOA) and not a contract. |
|
* |
|
* Among others, `isContract` will return false for the following |
|
* types of addresses: |
|
* |
|
* – an externally-owned account |
|
* – a contract in construction |
|
* – an address where a contract will be created |
|
* – an address where a contract lived, but was destroyed |
|
* ==== |
|
*/ |
|
function isContract(address account) internal view returns (bool) { |
|
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts |
|
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned |
|
// for accounts without code, i.e. `keccak256(”)` |
|
bytes32 codehash; |
|
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470; |
|
// solhint-disable-next-line no-inline-assembly |
|
assembly { codehash := extcodehash(account) } |
|
return (codehash != accountHash && codehash != 0x0); |
|
} |
|
|
|
/** |
|
* @dev Replacement for Solidity’s `transfer`: sends `amount` wei to |
|
* `recipient`, forwarding all available gas and reverting on errors. |
|
* |
|
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost |
|
* of certain opcodes, possibly making contracts go over the 2300 gas limit |
|
* imposed by `transfer`, making them unable to receive funds via |
|
* `transfer`. {sendValue} removes this limitation. |
|
* |
|
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. |
|
* |
|
* IMPORTANT: because control is transferred to `recipient`, care must be |
|
* taken to not create reentrancy vulnerabilities. Consider using |
|
* {ReentrancyGuard} or the |
|
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. |
|
*/ |
|
function sendValue(address payable recipient, uint256 amount) internal { |
|
require(address(this).balance >= amount, “Address: insufficient balance”); |
|
|
|
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value |
|
(bool success, ) = recipient.call{ value: amount }(“”); |
|
require(success, “Address: unable to send value, recipient may have reverted”); |
|
} |
|
|
|
/** |
|
* @dev Performs a Solidity function call using a low level `call`. A |
|
* plain`call` is an unsafe replacement for a function call: use this |
|
* function instead. |
|
* |
|
* If `target` reverts with a revert reason, it is bubbled up by this |
|
* function (like regular Solidity function calls). |
|
* |
|
* Returns the raw returned data. To convert to the expected return value, |
|
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. |
|
* |
|
* Requirements: |
|
* |
|
* – `target` must be a contract. |
|
* – calling `target` with `data` must not revert. |
|
* |
|
* _Available since v3.1._ |
|
*/ |
|
function functionCall(address target, bytes memory data) internal returns (bytes memory) { |
|
return functionCall(target, data, “Address: low-level call failed”); |
|
} |
|
|
|
/** |
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with |
|
* `errorMessage` as a fallback revert reason when `target` reverts. |
|
* |
|
* _Available since v3.1._ |
|
*/ |
|
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { |
|
return _functionCallWithValue(target, data, 0, errorMessage); |
|
} |
|
|
|
/** |
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], |
|
* but also transferring `value` wei to `target`. |
|
* |
|
* Requirements: |
|
* |
|
* – the calling contract must have an ETH balance of at least `value`. |
|
* – the called Solidity function must be `payable`. |
|
* |
|
* _Available since v3.1._ |
|
*/ |
|
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { |
|
return functionCallWithValue(target, data, value, “Address: low-level call with value failed”); |
|
} |
|
|
|
/** |
|
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but |
|
* with `errorMessage` as a fallback revert reason when `target` reverts. |
|
* |
|
* _Available since v3.1._ |
|
*/ |
|
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) { |
|
require(address(this).balance >= value, “Address: insufficient balance for call”); |
|
return _functionCallWithValue(target, data, value, errorMessage); |
|
} |
|
|
|
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) { |
|
require(isContract(target), “Address: call to non-contract”); |
|
|
|
// solhint-disable-next-line avoid-low-level-calls |
|
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data); |
|
if (success) { |
|
return returndata; |
|
} else { |
|
// Look for revert reason and bubble it up if present |
|
if (returndata.length > 0) { |
|
// The easiest way to bubble the revert reason is using memory via assembly |
|
|
|
// solhint-disable-next-line no-inline-assembly |
|
assembly { |
|
let returndata_size := mload(returndata) |
|
revert(add(32, returndata), returndata_size) |
|
} |
|
} else { |
|
revert(errorMessage); |
|
} |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* @dev Contract module which provides a basic access control mechanism, where |
|
* there is an account (an owner) that can be granted exclusive access to |
|
* specific functions. |
|
* |
|
* By default, the owner account will be the one that deploys the contract. This |
|
* can later be changed with {transferOwnership}. |
|
* |
|
* This module is used through inheritance. It will make available the modifier |
|
* `onlyOwner`, which can be applied to your functions to restrict their use to |
|
* the owner. |
|
*/ |
|
contract Ownable is Context { |
|
address private _owner; |
|
address private _previousOwner; |
|
uint256 private _lockTime; |
|
|
|
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); |
|
|
|
/** |
|
* @dev Initializes the contract setting the deployer as the initial owner. |
|
*/ |
|
constructor () internal { |
|
address msgSender = _msgSender(); |
|
_owner = msgSender; |
|
emit OwnershipTransferred(address(0), msgSender); |
|
} |
|
|
|
/** |
|
* @dev Returns the address of the current owner. |
|
*/ |
|
function owner() public view 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 { |
|
emit OwnershipTransferred(_owner, address(0)); |
|
_owner = 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”); |
|
emit OwnershipTransferred(_owner, newOwner); |
|
_owner = newOwner; |
|
} |
|
|
|
function geUnlockTime() public view returns (uint256) { |
|
return _lockTime; |
|
} |
|
|
|
//Locks the contract for owner for the amount of time provided |
|
function lock(uint256 time) public virtual onlyOwner { |
|
_previousOwner = _owner; |
|
_owner = address(0); |
|
_lockTime = now + time; |
|
emit OwnershipTransferred(_owner, address(0)); |
|
} |
|
|
|
//Unlocks the contract for owner when _lockTime is exceeds |
|
function unlock() public virtual { |
|
require(_previousOwner == msg.sender, “You don’t have permission to unlock”); |
|
require(now > _lockTime , “Contract is locked until 7 days”); |
|
emit OwnershipTransferred(_owner, _previousOwner); |
|
_owner = _previousOwner; |
|
} |
|
} |
|
|
|
// pragma solidity >=0.5.0; |
|
|
|
interface IUniswapV2Factory { |
|
event PairCreated(address indexed token0, address indexed token1, address pair, uint); |
|
|
|
function feeTo() external view returns (address); |
|
function feeToSetter() external view returns (address); |
|
|
|
function getPair(address tokenA, address tokenB) external view returns (address pair); |
|
function allPairs(uint) external view returns (address pair); |
|
function allPairsLength() external view returns (uint); |
|
|
|
function createPair(address tokenA, address tokenB) external returns (address pair); |
|
|
|
function setFeeTo(address) external; |
|
function setFeeToSetter(address) external; |
|
} |
|
|
|
|
|
// pragma solidity >=0.5.0; |
|
|
|
interface IUniswapV2Pair { |
|
event Approval(address indexed owner, address indexed spender, uint value); |
|
event Transfer(address indexed from, address indexed to, uint value); |
|
|
|
function name() external pure returns (string memory); |
|
function symbol() external pure returns (string memory); |
|
function decimals() external pure returns (uint8); |
|
function totalSupply() external view returns (uint); |
|
function balanceOf(address owner) external view returns (uint); |
|
function allowance(address owner, address spender) external view returns (uint); |
|
|
|
function approve(address spender, uint value) external returns (bool); |
|
function transfer(address to, uint value) external returns (bool); |
|
function transferFrom(address from, address to, uint value) external returns (bool); |
|
|
|
function DOMAIN_SEPARATOR() external view returns (bytes32); |
|
function PERMIT_TYPEHASH() external pure returns (bytes32); |
|
function nonces(address owner) external view returns (uint); |
|
|
|
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; |
|
|
|
event Mint(address indexed sender, uint amount0, uint amount1); |
|
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); |
|
event Swap( |
|
address indexed sender, |
|
uint amount0In, |
|
uint amount1In, |
|
uint amount0Out, |
|
uint amount1Out, |
|
address indexed to |
|
); |
|
event Sync(uint112 reserve0, uint112 reserve1); |
|
|
|
function MINIMUM_LIQUIDITY() external pure returns (uint); |
|
function factory() external view returns (address); |
|
function token0() external view returns (address); |
|
function token1() external view returns (address); |
|
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); |
|
function price0CumulativeLast() external view returns (uint); |
|
function price1CumulativeLast() external view returns (uint); |
|
function kLast() external view returns (uint); |
|
|
|
function mint(address to) external returns (uint liquidity); |
|
function burn(address to) external returns (uint amount0, uint amount1); |
|
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; |
|
function skim(address to) external; |
|
function sync() external; |
|
|
|
function initialize(address, address) external; |
|
} |
|
|
|
// pragma solidity >=0.6.2; |
|
|
|
interface IUniswapV2Router01 { |
|
function factory() external pure returns (address); |
|
function WETH() external pure returns (address); |
|
|
|
function addLiquidity( |
|
address tokenA, |
|
address tokenB, |
|
uint amountADesired, |
|
uint amountBDesired, |
|
uint amountAMin, |
|
uint amountBMin, |
|
address to, |
|
uint deadline |
|
) external returns (uint amountA, uint amountB, uint liquidity); |
|
function addLiquidityETH( |
|
address token, |
|
uint amountTokenDesired, |
|
uint amountTokenMin, |
|
uint amountETHMin, |
|
address to, |
|
uint deadline |
|
) external payable returns (uint amountToken, uint amountETH, uint liquidity); |
|
function removeLiquidity( |
|
address tokenA, |
|
address tokenB, |
|
uint liquidity, |
|
uint amountAMin, |
|
uint amountBMin, |
|
address to, |
|
uint deadline |
|
) external returns (uint amountA, uint amountB); |
|
function removeLiquidityETH( |
|
address token, |
|
uint liquidity, |
|
uint amountTokenMin, |
|
uint amountETHMin, |
|
address to, |
|
uint deadline |
|
) external returns (uint amountToken, uint amountETH); |
|
function removeLiquidityWithPermit( |
|
address tokenA, |
|
address tokenB, |
|
uint liquidity, |
|
uint amountAMin, |
|
uint amountBMin, |
|
address to, |
|
uint deadline, |
|
bool approveMax, uint8 v, bytes32 r, bytes32 s |
|
) external returns (uint amountA, uint amountB); |
|
function removeLiquidityETHWithPermit( |
|
address token, |
|
uint liquidity, |
|
uint amountTokenMin, |
|
uint amountETHMin, |
|
address to, |
|
uint deadline, |
|
bool approveMax, uint8 v, bytes32 r, bytes32 s |
|
) external returns (uint amountToken, uint amountETH); |
|
function swapExactTokensForTokens( |
|
uint amountIn, |
|
uint amountOutMin, |
|
address[] calldata path, |
|
address to, |
|
uint deadline |
|
) external returns (uint[] memory amounts); |
|
function swapTokensForExactTokens( |
|
uint amountOut, |
|
uint amountInMax, |
|
address[] calldata path, |
|
address to, |
|
uint deadline |
|
) external returns (uint[] memory amounts); |
|
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) |
|
external |
|
payable |
|
returns (uint[] memory amounts); |
|
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) |
|
external |
|
returns (uint[] memory amounts); |
|
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) |
|
external |
|
returns (uint[] memory amounts); |
|
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) |
|
external |
|
payable |
|
returns (uint[] memory amounts); |
|
|
|
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); |
|
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); |
|
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); |
|
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); |
|
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); |
|
} |
|
|
|
|
|
|
|
// pragma solidity >=0.6.2; |
|
|
|
interface IUniswapV2Router02 is IUniswapV2Router01 { |
|
function removeLiquidityETHSupportingFeeOnTransferTokens( |
|
address token, |
|
uint liquidity, |
|
uint amountTokenMin, |
|
uint amountETHMin, |
|
address to, |
|
uint deadline |
|
) external returns (uint amountETH); |
|
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( |
|
address token, |
|
uint liquidity, |
|
uint amountTokenMin, |
|
uint amountETHMin, |
|
address to, |
|
uint deadline, |
|
bool approveMax, uint8 v, bytes32 r, bytes32 s |
|
) external returns (uint amountETH); |
|
|
|
function swapExactTokensForTokensSupportingFeeOnTransferTokens( |
|
uint amountIn, |
|
uint amountOutMin, |
|
address[] calldata path, |
|
address to, |
|
uint deadline |
|
) external; |
|
function swapExactETHForTokensSupportingFeeOnTransferTokens( |
|
uint amountOutMin, |
|
address[] calldata path, |
|
address to, |
|
uint deadline |
|
) external payable; |
|
function swapExactTokensForETHSupportingFeeOnTransferTokens( |
|
uint amountIn, |
|
uint amountOutMin, |
|
address[] calldata path, |
|
address to, |
|
uint deadline |
|
) external; |
|
} |
|
|
|
|
|
contract SafeMoon is Context, IERC20, Ownable { |
|
using SafeMath for uint256; |
|
using Address for address; |
|
|
|
mapping (address => uint256) private _rOwned; |
|
mapping (address => uint256) private _tOwned; |
|
mapping (address => mapping (address => uint256)) private _allowances; |
|
|
|
mapping (address => bool) private _isExcludedFromFee; |
|
|
|
mapping (address => bool) private _isExcluded; |
|
address[] private _excluded; |
|
|
|
uint256 private constant MAX = ~uint256(0); |
|
uint256 private _tTotal = 1000000000 * 10**6 * 10**9; |
|
uint256 private _rTotal = (MAX – (MAX % _tTotal)); |
|
uint256 private _tFeeTotal; |
|
|
|
string private _name = “SafeMoon”; |
|
string private _symbol = “SAFEMOON”; |
|
uint8 private _decimals = 9; |
|
|
|
uint256 public _taxFee = 5; |
|
uint256 private _previousTaxFee = _taxFee; |
|
|
|
uint256 public _liquidityFee = 5; |
|
uint256 private _previousLiquidityFee = _liquidityFee; |
|
|
|
IUniswapV2Router02 public immutable uniswapV2Router; |
|
address public immutable uniswapV2Pair; |
|
|
|
bool inSwapAndLiquify; |
|
bool public swapAndLiquifyEnabled = true; |
|
|
|
uint256 public _maxTxAmount = 5000000 * 10**6 * 10**9; |
|
uint256 private numTokensSellToAddToLiquidity = 500000 * 10**6 * 10**9; |
|
|
|
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); |
|
event SwapAndLiquifyEnabledUpdated(bool enabled); |
|
event SwapAndLiquify( |
|
uint256 tokensSwapped, |
|
uint256 ethReceived, |
|
uint256 tokensIntoLiqudity |
|
); |
|
|
|
modifier lockTheSwap { |
|
inSwapAndLiquify = true; |
|
_; |
|
inSwapAndLiquify = false; |
|
} |
|
|
|
constructor () public { |
|
_rOwned[_msgSender()] = _rTotal; |
|
|
|
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x05fF2B0DB69458A0750badebc4f9e13aDd608C7F); |
|
// Create a uniswap pair for this new token |
|
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()) |
|
.createPair(address(this), _uniswapV2Router.WETH()); |
|
|
|
// set the rest of the contract variables |
|
uniswapV2Router = _uniswapV2Router; |
|
|
|
//exclude owner and this contract from fee |
|
_isExcludedFromFee[owner()] = true; |
|
_isExcludedFromFee[address(this)] = true; |
|
|
|
emit Transfer(address(0), _msgSender(), _tTotal); |
|
} |
|
|
|
function name() public view returns (string memory) { |
|
return _name; |
|
} |
|
|
|
function symbol() public view returns (string memory) { |
|
return _symbol; |
|
} |
|
|
|
function decimals() public view returns (uint8) { |
|
return _decimals; |
|
} |
|
|
|
function totalSupply() public view override returns (uint256) { |
|
return _tTotal; |
|
} |
|
|
|
function balanceOf(address account) public view override returns (uint256) { |
|
if (_isExcluded[account]) return _tOwned[account]; |
|
return tokenFromReflection(_rOwned[account]); |
|
} |
|
|
|
function transfer(address recipient, uint256 amount) public override returns (bool) { |
|
_transfer(_msgSender(), recipient, amount); |
|
return true; |
|
} |
|
|
|
function allowance(address owner, address spender) public view override returns (uint256) { |
|
return _allowances[owner][spender]; |
|
} |
|
|
|
function approve(address spender, uint256 amount) public override returns (bool) { |
|
_approve(_msgSender(), spender, amount); |
|
return true; |
|
} |
|
|
|
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { |
|
_transfer(sender, recipient, amount); |
|
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, “ERC20: transfer amount exceeds allowance”)); |
|
return true; |
|
} |
|
|
|
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { |
|
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); |
|
return true; |
|
} |
|
|
|
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { |
|
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, “ERC20: decreased allowance below zero”)); |
|
return true; |
|
} |
|
|
|
function isExcludedFromReward(address account) public view returns (bool) { |
|
return _isExcluded[account]; |
|
} |
|
|
|
function totalFees() public view returns (uint256) { |
|
return _tFeeTotal; |
|
} |
|
|
|
function deliver(uint256 tAmount) public { |
|
address sender = _msgSender(); |
|
require(!_isExcluded[sender], “Excluded addresses cannot call this function”); |
|
(uint256 rAmount,,,,,) = _getValues(tAmount); |
|
_rOwned[sender] = _rOwned[sender].sub(rAmount); |
|
_rTotal = _rTotal.sub(rAmount); |
|
_tFeeTotal = _tFeeTotal.add(tAmount); |
|
} |
|
|
|
function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) { |
|
require(tAmount <= _tTotal, “Amount must be less than supply”); |
|
if (!deductTransferFee) { |
|
(uint256 rAmount,,,,,) = _getValues(tAmount); |
|
return rAmount; |
|
} else { |
|
(,uint256 rTransferAmount,,,,) = _getValues(tAmount); |
|
return rTransferAmount; |
|
} |
|
} |
|
|
|
function tokenFromReflection(uint256 rAmount) public view returns(uint256) { |
|
require(rAmount <= _rTotal, “Amount must be less than total reflections”); |
|
uint256 currentRate = _getRate(); |
|
return rAmount.div(currentRate); |
|
} |
|
|
|
function excludeFromReward(address account) public onlyOwner() { |
|
// require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, ‘We can not exclude Uniswap router.’); |
|
require(!_isExcluded[account], “Account is already excluded”); |
|
if(_rOwned[account] > 0) { |
|
_tOwned[account] = tokenFromReflection(_rOwned[account]); |
|
} |
|
_isExcluded[account] = true; |
|
_excluded.push(account); |
|
} |
|
|
|
function includeInReward(address account) external onlyOwner() { |
|
require(_isExcluded[account], “Account is already excluded”); |
|
for (uint256 i = 0; i < _excluded.length; i++) { |
|
if (_excluded[i] == account) { |
|
_excluded[i] = _excluded[_excluded.length – 1]; |
|
_tOwned[account] = 0; |
|
_isExcluded[account] = false; |
|
_excluded.pop(); |
|
break; |
|
} |
|
} |
|
} |
|
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private { |
|
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); |
|
_tOwned[sender] = _tOwned[sender].sub(tAmount); |
|
_rOwned[sender] = _rOwned[sender].sub(rAmount); |
|
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); |
|
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); |
|
_takeLiquidity(tLiquidity); |
|
_reflectFee(rFee, tFee); |
|
emit Transfer(sender, recipient, tTransferAmount); |
|
} |
|
|
|
function excludeFromFee(address account) public onlyOwner { |
|
_isExcludedFromFee[account] = true; |
|
} |
|
|
|
function includeInFee(address account) public onlyOwner { |
|
_isExcludedFromFee[account] = false; |
|
} |
|
|
|
function setTaxFeePercent(uint256 taxFee) external onlyOwner() { |
|
_taxFee = taxFee; |
|
} |
|
|
|
function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() { |
|
_liquidityFee = liquidityFee; |
|
} |
|
|
|
function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() { |
|
_maxTxAmount = _tTotal.mul(maxTxPercent).div( |
|
10**2 |
|
); |
|
} |
|
|
|
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { |
|
swapAndLiquifyEnabled = _enabled; |
|
emit SwapAndLiquifyEnabledUpdated(_enabled); |
|
} |
|
|
|
//to recieve ETH from uniswapV2Router when swaping |
|
receive() external payable {} |
|
|
|
function _reflectFee(uint256 rFee, uint256 tFee) private { |
|
_rTotal = _rTotal.sub(rFee); |
|
_tFeeTotal = _tFeeTotal.add(tFee); |
|
} |
|
|
|
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) { |
|
(uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount); |
|
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate()); |
|
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity); |
|
} |
|
|
|
function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) { |
|
uint256 tFee = calculateTaxFee(tAmount); |
|
uint256 tLiquidity = calculateLiquidityFee(tAmount); |
|
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); |
|
return (tTransferAmount, tFee, tLiquidity); |
|
} |
|
|
|
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) { |
|
uint256 rAmount = tAmount.mul(currentRate); |
|
uint256 rFee = tFee.mul(currentRate); |
|
uint256 rLiquidity = tLiquidity.mul(currentRate); |
|
uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity); |
|
return (rAmount, rTransferAmount, rFee); |
|
} |
|
|
|
function _getRate() private view returns(uint256) { |
|
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply(); |
|
return rSupply.div(tSupply); |
|
} |
|
|
|
function _getCurrentSupply() private view returns(uint256, uint256) { |
|
uint256 rSupply = _rTotal; |
|
uint256 tSupply = _tTotal; |
|
for (uint256 i = 0; i < _excluded.length; i++) { |
|
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal); |
|
rSupply = rSupply.sub(_rOwned[_excluded[i]]); |
|
tSupply = tSupply.sub(_tOwned[_excluded[i]]); |
|
} |
|
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal); |
|
return (rSupply, tSupply); |
|
} |
|
|
|
function _takeLiquidity(uint256 tLiquidity) private { |
|
uint256 currentRate = _getRate(); |
|
uint256 rLiquidity = tLiquidity.mul(currentRate); |
|
_rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity); |
|
if(_isExcluded[address(this)]) |
|
_tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity); |
|
} |
|
|
|
function calculateTaxFee(uint256 _amount) private view returns (uint256) { |
|
return _amount.mul(_taxFee).div( |
|
10**2 |
|
); |
|
} |
|
|
|
function calculateLiquidityFee(uint256 _amount) private view returns (uint256) { |
|
return _amount.mul(_liquidityFee).div( |
|
10**2 |
|
); |
|
} |
|
|
|
function removeAllFee() private { |
|
if(_taxFee == 0 && _liquidityFee == 0) return; |
|
|
|
_previousTaxFee = _taxFee; |
|
_previousLiquidityFee = _liquidityFee; |
|
|
|
_taxFee = 0; |
|
_liquidityFee = 0; |
|
} |
|
|
|
function restoreAllFee() private { |
|
_taxFee = _previousTaxFee; |
|
_liquidityFee = _previousLiquidityFee; |
|
} |
|
|
|
function isExcludedFromFee(address account) public view returns(bool) { |
|
return _isExcludedFromFee[account]; |
|
} |
|
|
|
function _approve(address owner, address spender, uint256 amount) private { |
|
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); |
|
} |
|
|
|
function _transfer( |
|
address from, |
|
address to, |
|
uint256 amount |
|
) private { |
|
require(from != address(0), “ERC20: transfer from the zero address”); |
|
require(to != address(0), “ERC20: transfer to the zero address”); |
|
require(amount > 0, “Transfer amount must be greater than zero”); |
|
if(from != owner() && to != owner()) |
|
require(amount <= _maxTxAmount, “Transfer amount exceeds the maxTxAmount.”); |
|
|
|
// is the token balance of this contract address over the min number of |
|
// tokens that we need to initiate a swap + liquidity lock? |
|
// also, don’t get caught in a circular liquidity event. |
|
// also, don’t swap & liquify if sender is uniswap pair. |
|
uint256 contractTokenBalance = balanceOf(address(this)); |
|
|
|
if(contractTokenBalance >= _maxTxAmount) |
|
{ |
|
contractTokenBalance = _maxTxAmount; |
|
} |
|
|
|
bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity; |
|
if ( |
|
overMinTokenBalance && |
|
!inSwapAndLiquify && |
|
from != uniswapV2Pair && |
|
swapAndLiquifyEnabled |
|
) { |
|
contractTokenBalance = numTokensSellToAddToLiquidity; |
|
//add liquidity |
|
swapAndLiquify(contractTokenBalance); |
|
} |
|
|
|
//indicates if fee should be deducted from transfer |
|
bool takeFee = true; |
|
|
|
//if any account belongs to _isExcludedFromFee account then remove the fee |
|
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){ |
|
takeFee = false; |
|
} |
|
|
|
//transfer amount, it will take tax, burn, liquidity fee |
|
_tokenTransfer(from,to,amount,takeFee); |
|
} |
|
|
|
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap { |
|
// split the contract balance into halves |
|
uint256 half = contractTokenBalance.div(2); |
|
uint256 otherHalf = contractTokenBalance.sub(half); |
|
|
|
// capture the contract’s current ETH balance. |
|
// this is so that we can capture exactly the amount of ETH that the |
|
// swap creates, and not make the liquidity event include any ETH that |
|
// has been manually sent to the contract |
|
uint256 initialBalance = address(this).balance; |
|
|
|
// swap tokens for ETH |
|
swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered |
|
|
|
// how much ETH did we just swap into? |
|
uint256 newBalance = address(this).balance.sub(initialBalance); |
|
|
|
// add liquidity to uniswap |
|
addLiquidity(otherHalf, newBalance); |
|
|
|
emit SwapAndLiquify(half, newBalance, otherHalf); |
|
} |
|
|
|
function swapTokensForEth(uint256 tokenAmount) private { |
|
// generate the uniswap pair path of token -> weth |
|
address[] memory path = new address[](2); |
|
path[0] = address(this); |
|
path[1] = uniswapV2Router.WETH(); |
|
|
|
_approve(address(this), address(uniswapV2Router), tokenAmount); |
|
|
|
// make the swap |
|
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( |
|
tokenAmount, |
|
0, // accept any amount of ETH |
|
path, |
|
address(this), |
|
block.timestamp |
|
); |
|
} |
|
|
|
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private { |
|
// approve token transfer to cover all possible scenarios |
|
_approve(address(this), address(uniswapV2Router), tokenAmount); |
|
|
|
// add the liquidity |
|
uniswapV2Router.addLiquidityETH{value: ethAmount}( |
|
address(this), |
|
tokenAmount, |
|
0, // slippage is unavoidable |
|
0, // slippage is unavoidable |
|
owner(), |
|
block.timestamp |
|
); |
|
} |
|
|
|
//this method is responsible for taking all fee, if takeFee is true |
|
function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private { |
|
if(!takeFee) |
|
removeAllFee(); |
|
|
|
if (_isExcluded[sender] && !_isExcluded[recipient]) { |
|
_transferFromExcluded(sender, recipient, amount); |
|
} else if (!_isExcluded[sender] && _isExcluded[recipient]) { |
|
_transferToExcluded(sender, recipient, amount); |
|
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) { |
|
_transferStandard(sender, recipient, amount); |
|
} else if (_isExcluded[sender] && _isExcluded[recipient]) { |
|
_transferBothExcluded(sender, recipient, amount); |
|
} else { |
|
_transferStandard(sender, recipient, amount); |
|
} |
|
|
|
if(!takeFee) |
|
restoreAllFee(); |
|
} |
|
|
|
function _transferStandard(address sender, address recipient, uint256 tAmount) private { |
|
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); |
|
_rOwned[sender] = _rOwned[sender].sub(rAmount); |
|
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); |
|
_takeLiquidity(tLiquidity); |
|
_reflectFee(rFee, tFee); |
|
emit Transfer(sender, recipient, tTransferAmount); |
|
} |
|
|
|
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private { |
|
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); |
|
_rOwned[sender] = _rOwned[sender].sub(rAmount); |
|
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount); |
|
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); |
|
_takeLiquidity(tLiquidity); |
|
_reflectFee(rFee, tFee); |
|
emit Transfer(sender, recipient, tTransferAmount); |
|
} |
|
|
|
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private { |
|
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount); |
|
_tOwned[sender] = _tOwned[sender].sub(tAmount); |
|
_rOwned[sender] = _rOwned[sender].sub(rAmount); |
|
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); |
|
_takeLiquidity(tLiquidity); |
|
_reflectFee(rFee, tFee); |
|
emit Transfer(sender, recipient, tTransferAmount); |
|
} |
|
|
|
|
|
|
|
|
|
} |