Created
January 20, 2022 18:41
-
-
Save joniksl/dbd6277e0861a6fda35a8b5a8c2423f3 to your computer and use it in GitHub Desktop.
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.11+commit.d7f03943.js&optimize=true&runs=200&gist=
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// SPDX-License-Identifier: MIT | |
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol | |
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); | |
} | |
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol | |
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; | |
} | |
// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol | |
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; | |
} | |
// File: @openzeppelin/contracts/utils/Context.sol | |
pragma solidity ^0.8.0; | |
/** | |
* @dev Provides information about the current execution context, including the | |
* sender of the transaction and its data. While these are generally available | |
* via msg.sender and msg.data, they should not be accessed in such a direct | |
* manner, since when dealing with meta-transactions the account sending and | |
* paying for execution may not be the actual sender (as far as an application | |
* is concerned). | |
* | |
* This contract is only required for intermediate, library-like contracts. | |
*/ | |
abstract contract Context { | |
function _msgSender() internal view virtual returns (address) { | |
return msg.sender; | |
} | |
function _msgData() internal view virtual returns (bytes calldata) { | |
return msg.data; | |
} | |
} | |
// File: @openzeppelin/contracts/access/Ownable.sol | |
pragma solidity ^0.8.0; | |
/** | |
* @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. | |
*/ | |
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() { | |
_setOwner(_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 { | |
_setOwner(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"); | |
_setOwner(newOwner); | |
} | |
function _setOwner(address newOwner) private { | |
address oldOwner = _owner; | |
_owner = newOwner; | |
emit OwnershipTransferred(oldOwner, newOwner); | |
} | |
} | |
// File: @openzeppelin/contracts/utils/Address.sol | |
// OpenZeppelin Contracts v4.4.0 (utils/Address.sol) | |
pragma solidity ^0.8.0; | |
/** | |
* @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) { | |
// This method relies on extcodesize, which returns 0 for contracts in | |
// construction, since the code is only stored at the end of the | |
// constructor execution. | |
uint256 size; | |
assembly { | |
size := extcodesize(account) | |
} | |
return size > 0; | |
} | |
/** | |
* @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"); | |
(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"); | |
require(isContract(target), "Address: call to non-contract"); | |
(bool success, bytes memory returndata) = target.call{value: value}(data); | |
return verifyCallResult(success, returndata, errorMessage); | |
} | |
/** | |
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], | |
* but performing a static call. | |
* | |
* _Available since v3.3._ | |
*/ | |
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { | |
return functionStaticCall(target, data, "Address: low-level static call failed"); | |
} | |
/** | |
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], | |
* but performing a static call. | |
* | |
* _Available since v3.3._ | |
*/ | |
function functionStaticCall( | |
address target, | |
bytes memory data, | |
string memory errorMessage | |
) internal view returns (bytes memory) { | |
require(isContract(target), "Address: static call to non-contract"); | |
(bool success, bytes memory returndata) = target.staticcall(data); | |
return verifyCallResult(success, returndata, errorMessage); | |
} | |
/** | |
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], | |
* but performing a delegate call. | |
* | |
* _Available since v3.4._ | |
*/ | |
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { | |
return functionDelegateCall(target, data, "Address: low-level delegate call failed"); | |
} | |
/** | |
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], | |
* but performing a delegate call. | |
* | |
* _Available since v3.4._ | |
*/ | |
function functionDelegateCall( | |
address target, | |
bytes memory data, | |
string memory errorMessage | |
) internal returns (bytes memory) { | |
require(isContract(target), "Address: delegate call to non-contract"); | |
(bool success, bytes memory returndata) = target.delegatecall(data); | |
return verifyCallResult(success, returndata, errorMessage); | |
} | |
/** | |
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the | |
* revert reason using the provided one. | |
* | |
* _Available since v4.3._ | |
*/ | |
function verifyCallResult( | |
bool success, | |
bytes memory returndata, | |
string memory errorMessage | |
) internal pure returns (bytes memory) { | |
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 | |
assembly { | |
let returndata_size := mload(returndata) | |
revert(add(32, returndata), returndata_size) | |
} | |
} else { | |
revert(errorMessage); | |
} | |
} | |
} | |
} | |
// File: @openzeppelin/contracts/utils/math/SafeMath.sol | |
pragma solidity ^0.8.0; | |
// CAUTION | |
// This version of SafeMath should only be used with Solidity 0.8 or later, | |
// because it relies on the compiler's built in overflow checks. | |
/** | |
* @dev Wrappers over Solidity's arithmetic operations. | |
* | |
* NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler | |
* now has built in overflow checking. | |
*/ | |
library SafeMath { | |
/** | |
* @dev Returns the addition of two unsigned integers, with an overflow flag. | |
* | |
* _Available since v3.4._ | |
*/ | |
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { | |
unchecked { | |
uint256 c = a + b; | |
if (c < a) return (false, 0); | |
return (true, c); | |
} | |
} | |
/** | |
* @dev Returns the substraction of two unsigned integers, with an overflow flag. | |
* | |
* _Available since v3.4._ | |
*/ | |
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { | |
unchecked { | |
if (b > a) return (false, 0); | |
return (true, a - b); | |
} | |
} | |
/** | |
* @dev Returns the multiplication of two unsigned integers, with an overflow flag. | |
* | |
* _Available since v3.4._ | |
*/ | |
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { | |
unchecked { | |
// 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/OpenZeppelin/openzeppelin-contracts/pull/522 | |
if (a == 0) return (true, 0); | |
uint256 c = a * b; | |
if (c / a != b) return (false, 0); | |
return (true, c); | |
} | |
} | |
/** | |
* @dev Returns the division of two unsigned integers, with a division by zero flag. | |
* | |
* _Available since v3.4._ | |
*/ | |
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { | |
unchecked { | |
if (b == 0) return (false, 0); | |
return (true, a / b); | |
} | |
} | |
/** | |
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. | |
* | |
* _Available since v3.4._ | |
*/ | |
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { | |
unchecked { | |
if (b == 0) return (false, 0); | |
return (true, a % b); | |
} | |
} | |
/** | |
* @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) { | |
return a + b; | |
} | |
/** | |
* @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 a - b; | |
} | |
/** | |
* @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) { | |
return a * b; | |
} | |
/** | |
* @dev Returns the integer division of two unsigned integers, reverting on | |
* division by zero. The result is rounded towards zero. | |
* | |
* Counterpart to Solidity's `/` operator. | |
* | |
* Requirements: | |
* | |
* - The divisor cannot be zero. | |
*/ | |
function div(uint256 a, uint256 b) internal pure returns (uint256) { | |
return a / b; | |
} | |
/** | |
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), | |
* reverting 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 a % b; | |
} | |
/** | |
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on | |
* overflow (when the result is negative). | |
* | |
* CAUTION: This function is deprecated because it requires allocating memory for the error | |
* message unnecessarily. For custom revert reasons use {trySub}. | |
* | |
* Counterpart to Solidity's `-` operator. | |
* | |
* Requirements: | |
* | |
* - Subtraction cannot overflow. | |
*/ | |
function sub( | |
uint256 a, | |
uint256 b, | |
string memory errorMessage | |
) internal pure returns (uint256) { | |
unchecked { | |
require(b <= a, errorMessage); | |
return a - b; | |
} | |
} | |
/** | |
* @dev Returns the integer division of two unsigned integers, reverting 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) { | |
unchecked { | |
require(b > 0, errorMessage); | |
return a / b; | |
} | |
} | |
/** | |
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), | |
* reverting with custom message when dividing by zero. | |
* | |
* CAUTION: This function is deprecated because it requires allocating memory for the error | |
* message unnecessarily. For custom revert reasons use {tryMod}. | |
* | |
* 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) { | |
unchecked { | |
require(b > 0, errorMessage); | |
return a % b; | |
} | |
} | |
} | |
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol | |
pragma solidity ^0.8.0; | |
/** | |
* @dev Interface of the ERC20 standard as defined in the EIP. | |
*/ | |
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 `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); | |
} | |
pragma solidity ^0.8.10; | |
contract RATCOIN 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; | |
mapping(address => bool) public _isBlackListed; | |
address[] private _excluded; | |
uint256 private constant MAX = ~uint256(0); | |
uint256 private _tTotal; | |
uint256 private _rTotal; | |
uint256 private _tFeeTotal; | |
string private _name = "Rat Coin"; | |
string private _symbol = "RAT"; | |
uint8 private _decimals = 9; | |
bool public isTradingEnabled; | |
uint256 public antiBotBlocks; | |
uint16 deadBlocks; | |
struct BuyFee { | |
uint16 liquidityFee; | |
uint16 marketingFee; | |
uint16 buybackFee; | |
uint16 taxFee; | |
} | |
struct SellFee { | |
uint16 liquidityFee; | |
uint16 marketingFee; | |
uint16 buybackFee; | |
uint16 taxFee; | |
} | |
BuyFee public buyFee; | |
SellFee public sellFee; | |
uint16 private _taxFee; | |
uint16 private _liquidityFee; | |
uint16 private _marketingFee; | |
uint16 private _buybackFee; | |
IUniswapV2Router02 public uniswapV2Router; | |
address public uniswapV2Pair; | |
address payable public _marketingWallet; | |
bool inSwapAndLiquify; | |
bool public swapAndLiquifyEnabled = true; | |
uint256 public maxBuyAmount; | |
uint256 public maxSellAmount; | |
uint256 public numTokensSellToAddToLiquidity; | |
uint256 public maxWalletAmount; | |
bool public isBuyBackEnabled = true; | |
uint256 public buybackLimit = 0.01 ether; | |
event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); | |
event SwapAndLiquifyEnabledUpdated(bool enabled); | |
event SwapAndLiquify( | |
uint256 tokensSwapped, | |
uint256 ethReceived, | |
uint256 tokensIntoLiqudity | |
); | |
modifier lockTheSwap() { | |
inSwapAndLiquify = true; | |
_; | |
inSwapAndLiquify = false; | |
} | |
constructor(uint16 _deadBlocks, | |
uint16 _buyliq, | |
uint16 _buymarket, | |
uint16 _sellliq, | |
uint16 _sellmarket, | |
address payable _marketing, | |
uint256 _supply, | |
uint256 _numTokens, | |
uint256 _maxWallet, | |
uint256 _maxBuy, | |
uint256 _maxSell | |
) { | |
_tTotal = _supply * 10 ** _decimals; | |
_rTotal = (MAX - (MAX % _tTotal)); | |
numTokensSellToAddToLiquidity = _numTokens * 10 ** _decimals; | |
maxWalletAmount = _maxWallet * 10 ** _decimals; | |
_rOwned[_msgSender()] = _rTotal; | |
deadBlocks = _deadBlocks; | |
maxBuyAmount = _maxBuy * 10 ** _decimals; | |
maxSellAmount = _maxSell * 10 ** _decimals; | |
buyFee.liquidityFee = _buyliq; | |
buyFee.marketingFee = _buymarket; | |
buyFee.buybackFee = 0; | |
buyFee.taxFee = 0; | |
sellFee.liquidityFee = _sellliq; | |
sellFee.marketingFee = _sellmarket; | |
sellFee.buybackFee = 0; | |
sellFee.taxFee = 0; | |
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02( | |
0x10ED43C718714eb63d5aA57B78B54704E256024E | |
); | |
// 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; | |
_marketingWallet = _marketing; | |
//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 checkBlock() public view returns (uint256) { | |
return block.number; | |
} | |
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 excludeFromFee(address account) external onlyOwner { | |
_isExcludedFromFee[account] = true; | |
} | |
function includeInFee(address account) external onlyOwner { | |
_isExcludedFromFee[account] = false; | |
} | |
// No rugs here, man :) | |
//function controlTrading(bool value) external onlyOwner { | |
// isTradingEnabled = value; | |
//} | |
function launch() external onlyOwner { | |
require(antiBotBlocks == 0); | |
antiBotBlocks = block.number + deadBlocks; | |
isTradingEnabled = true; | |
} | |
function controlBuyBack(bool value, uint256 amount) external onlyOwner { | |
isBuyBackEnabled = value; | |
buybackLimit = amount; | |
} | |
function setBuyFee(uint16 liq, uint16 market, uint16 reward, uint16 tax) external onlyOwner { | |
buyFee.liquidityFee = liq; | |
buyFee.marketingFee = market; | |
buyFee.buybackFee = reward; | |
buyFee.taxFee = tax; | |
} | |
function setSellFee(uint16 liq, uint16 market, uint16 reward, uint16 tax) external onlyOwner { | |
sellFee.liquidityFee = liq; | |
sellFee.marketingFee = market; | |
sellFee.buybackFee = reward; | |
sellFee.taxFee = tax; | |
} | |
function setNumTokensSellToAddToLiquidity(uint256 numTokens) | |
external | |
onlyOwner | |
{ | |
numTokensSellToAddToLiquidity = numTokens * 10 ** _decimals; | |
} | |
function updateRouter(address newAddress) external onlyOwner { | |
require( | |
newAddress != address(uniswapV2Router), | |
"TOKEN: The router already has that address" | |
); | |
uniswapV2Router = IUniswapV2Router02(newAddress); | |
address _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()) | |
.createPair(address(this), uniswapV2Router.WETH()); | |
uniswapV2Pair = _uniswapV2Pair; | |
} | |
function setMaxBuyAmount(uint256 value) external onlyOwner { | |
maxBuyAmount = value * 10 ** _decimals; | |
} | |
function setMaxSellAmount(uint256 value) external onlyOwner { | |
maxSellAmount = value * 10 ** _decimals; | |
} | |
function setMaxWallet(uint256 value) external onlyOwner { | |
maxWalletAmount = value * 10 ** _decimals; | |
} | |
function setBlackList(address addr, bool value) external onlyOwner { | |
_isBlackListed[addr] = value; | |
} | |
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner { | |
swapAndLiquifyEnabled = _enabled; | |
emit SwapAndLiquifyEnabledUpdated(_enabled); | |
} | |
function triggerBuyBack(uint256 amount) external onlyOwner { | |
swapETHForTokens(amount); | |
} | |
function claimStuckTokens(address _token) external onlyOwner { | |
require(_token != address(this), "No rug pulls :)"); | |
if (_token == address(0x0)) { | |
payable(owner()).transfer(address(this).balance); | |
return; | |
} | |
IERC20 erc20token = IERC20(_token); | |
uint256 balance = erc20token.balanceOf(address(this)); | |
erc20token.transfer(owner(), balance); | |
} | |
//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, | |
uint256 tBuyBack, | |
uint256 tMarketing | |
) = _getTValues(tAmount); | |
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues( | |
tAmount, | |
tFee, | |
tLiquidity, | |
tBuyBack, | |
tMarketing, | |
_getRate() | |
); | |
return ( | |
rAmount, | |
rTransferAmount, | |
rFee, | |
tTransferAmount, | |
tFee, | |
tLiquidity | |
); | |
} | |
function _getTValues(uint256 tAmount) | |
private | |
view | |
returns ( | |
uint256, | |
uint256, | |
uint256, | |
uint256, | |
uint256 | |
) | |
{ | |
uint256 tFee = calculateTaxFee(tAmount); | |
uint256 tLiquidity = calculateLiquidityFee(tAmount); | |
uint256 tBuyBack = calculatebuybackFee(tAmount); | |
uint256 tMarketing = calculateMarketingFee(tAmount); | |
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity); | |
tTransferAmount = tTransferAmount.sub(tBuyBack).sub(tMarketing); | |
return (tTransferAmount, tFee, tLiquidity, tBuyBack, tMarketing); | |
} | |
function _getRValues( | |
uint256 tAmount, | |
uint256 tFee, | |
uint256 tLiquidity, | |
uint256 tBuyBack, | |
uint256 tMarketing, | |
uint256 currentRate | |
) | |
private | |
pure | |
returns ( | |
uint256, | |
uint256, | |
uint256 | |
) | |
{ | |
uint256 rAmount = tAmount.mul(currentRate); | |
uint256 rFee = tFee.mul(currentRate); | |
uint256 rLiquidity = tLiquidity.mul(currentRate); | |
uint256 rBuyBack = tBuyBack.mul(currentRate); | |
uint256 rMarketing = tMarketing.mul(currentRate); | |
uint256 rTransferAmount = rAmount | |
.sub(rFee) | |
.sub(rLiquidity) | |
.sub(rBuyBack) | |
.sub(rMarketing); | |
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 _takeBuyBackAndMarketing(uint256 tBuyBack, uint256 tMarketing) | |
private | |
{ | |
uint256 currentRate = _getRate(); | |
uint256 rBuyBack = tBuyBack.mul(currentRate); | |
uint256 rMarketing = tMarketing.mul(currentRate); | |
_rOwned[address(this)] = _rOwned[address(this)].add(rMarketing).add(rBuyBack); | |
_tOwned[address(this)] = _tOwned[address(this)].add(tMarketing).add(tBuyBack); | |
} | |
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 calculatebuybackFee(uint256 _amount) | |
private | |
view | |
returns (uint256) | |
{ | |
return _amount.mul(_buybackFee).div(10**2); | |
} | |
function calculateMarketingFee(uint256 _amount) | |
private | |
view | |
returns (uint256) | |
{ | |
return _amount.mul(_marketingFee).div(10**2); | |
} | |
function removeAllFee() private { | |
_taxFee = 0; | |
_liquidityFee = 0; | |
_buybackFee = 0; | |
_marketingFee = 0; | |
} | |
function setBuy() private { | |
_taxFee = buyFee.taxFee; | |
_liquidityFee = buyFee.liquidityFee; | |
_buybackFee = buyFee.buybackFee; | |
_marketingFee = buyFee.marketingFee; | |
} | |
function setSell() private { | |
_taxFee = sellFee.taxFee; | |
_liquidityFee = sellFee.liquidityFee; | |
_buybackFee = sellFee.buybackFee; | |
_marketingFee = sellFee.marketingFee; | |
} | |
function setAntiBot() private { | |
_taxFee = 30; | |
_liquidityFee = 30; | |
_marketingFee = 30; | |
} | |
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"); | |
require(!_isBlackListed[from] && !_isBlackListed[to],"Account is blacklisted"); | |
// 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 >= maxSellAmount) { | |
contractTokenBalance = maxSellAmount; | |
} | |
if( | |
!inSwapAndLiquify && | |
from != uniswapV2Pair && | |
isBuyBackEnabled && | |
address(this).balance >= buybackLimit | |
) { | |
swapETHForTokens(buybackLimit.div(10)); | |
} | |
bool overMinTokenBalance = contractTokenBalance >= | |
numTokensSellToAddToLiquidity; | |
if ( | |
overMinTokenBalance && | |
!inSwapAndLiquify && | |
from != uniswapV2Pair && | |
swapAndLiquifyEnabled | |
) { | |
contractTokenBalance = numTokensSellToAddToLiquidity; | |
uint256 forMarketing = contractTokenBalance | |
.mul(buyFee.marketingFee + sellFee.marketingFee) | |
.div( | |
buyFee.marketingFee + | |
sellFee.marketingFee + | |
buyFee.liquidityFee + | |
sellFee.liquidityFee + | |
buyFee.buybackFee + | |
sellFee.buybackFee | |
); | |
uint256 forBuyBack = contractTokenBalance | |
.mul(buyFee.buybackFee + sellFee.buybackFee) | |
.div( | |
buyFee.marketingFee + | |
sellFee.marketingFee + | |
buyFee.liquidityFee + | |
sellFee.liquidityFee + | |
buyFee.buybackFee + | |
sellFee.buybackFee | |
); | |
if(forMarketing > 0){ | |
swapAndSendFee(forMarketing); | |
} | |
if(forBuyBack > 0){ | |
swapTokensForEth(forBuyBack); | |
} | |
swapAndLiquify(contractTokenBalance - forMarketing - forBuyBack); | |
} | |
//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, reward, liquidity fee | |
_tokenTransfer(from, to, amount, takeFee); | |
} | |
function swapAndLiquify(uint256 contractTokenBalance) private { | |
// 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 swapAndSendFee(uint256 amount) private { | |
uint256 initialBalance = address(this).balance; | |
swapTokensForEth(amount); | |
uint256 newBalance = address(this).balance.sub(initialBalance); | |
payable(_marketingWallet).transfer(newBalance); | |
} | |
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { | |
// 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 swapETHForTokens(uint256 amount) private lockTheSwap { | |
// generate the uniswap pair path of token -> weth | |
address[] memory path = new address[](2); | |
path[0] = uniswapV2Router.WETH(); | |
path[1] = address(this); | |
// make the swap | |
uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}( | |
0, // accept any amount of Tokens | |
path, | |
address(0xdead), // Burn address | |
block.timestamp.add(300) | |
); | |
} | |
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private lockTheSwap { | |
// 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 { | |
removeAllFee(); | |
if (takeFee) { | |
require(isTradingEnabled,"Trading not enabled yet"); | |
if (sender == uniswapV2Pair) { | |
require(amount <= maxBuyAmount, "Buy exceeds limit"); | |
setBuy(); | |
} | |
if (recipient == uniswapV2Pair) { | |
require(amount <= maxSellAmount, "Sell exceeds limit"); | |
setSell(); | |
} | |
if(recipient != uniswapV2Pair){ | |
require( | |
balanceOf(recipient) + amount <= maxWalletAmount, | |
"Balance exceeds limit" | |
); | |
} | |
if (block.number <= antiBotBlocks){ | |
setAntiBot(); | |
} | |
} | |
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); | |
} | |
} | |
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); | |
_takeBuyBackAndMarketing( | |
calculatebuybackFee(tAmount), | |
calculateMarketingFee(tAmount) | |
); | |
_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); | |
_takeBuyBackAndMarketing( | |
calculatebuybackFee(tAmount), | |
calculateMarketingFee(tAmount) | |
); | |
_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); | |
_takeBuyBackAndMarketing( | |
calculatebuybackFee(tAmount), | |
calculateMarketingFee(tAmount) | |
); | |
_reflectFee(rFee, tFee); | |
emit Transfer(sender, recipient, tTransferAmount); | |
} | |
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); | |
_takeBuyBackAndMarketing( | |
calculatebuybackFee(tAmount), | |
calculateMarketingFee(tAmount) | |
); | |
_reflectFee(rFee, tFee); | |
emit Transfer(sender, recipient, tTransferAmount); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment