/**
*Submitted for verification at BscScan.com on 2022-03-21
*/
// File: contracts/litee.sol
/**
*Submitted for verification at BscScan.com on 2022-02-11
*/
/**
* SPDX-License-Identifier: MIT
*/
pragma solidity ^0.8.4;
/*
INHERITANCE FUNCTIONS
*/
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {return msg.sender;}
function _msgData() internal view virtual returns (bytes calldata) {this; return msg.data;}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {return a + b;}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {return a - b;}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {return a * b;}
function div(uint256 a, uint256 b) internal pure returns (uint256) {return a / b;}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {return a % b;}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked { require(b <= a, errorMessage); return a - b; }
}
}
library Address {
function isContract(address account) internal view returns (bool) { uint256 size; assembly { size := extcodesize(account) } return size > 0;}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {return functionCall(target, data, "Address: low-level call failed");}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {return functionCallWithValue(target, data, 0, errorMessage);}
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");}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) { return returndata; } else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {revert(errorMessage);}
}
}
}
/*
OWNABLE FUNCTIONS
*/
abstract contract Ownable is Context {
address public _owner;
address public _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the 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;
}
}
/*
MANAGEMENT FUNCTIONS
*/
abstract contract Manageable is Context {
address public _manager;
event ManagementTransferred(address indexed previousManager, address indexed newManager);
constructor(){
address msgSender = _msgSender();
_manager = msgSender;
emit ManagementTransferred(address(0), msgSender);
}
function manager() public view returns(address){ return _manager; }
modifier onlyManager(){
require(_manager == _msgSender(), "Manageable: caller is not the manager");
_;
}
function transferManagement(address newManager) external virtual onlyManager {
emit ManagementTransferred(_manager, newManager);
_manager = newManager;
}
}
/*
PANCAKESWAP INTERFACE
*/
interface IPancakeV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IPancakeV2Router {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
/*
TOKENOMICS LABITS
*/
abstract contract Tokenomics {
using SafeMath for uint256;
string internal constant NAME = "Crypty Chain Coin";
string internal constant SYMBOL = "LITEE";
uint16 internal constant FEES_DIVISOR = 10**2;
uint8 internal constant DECIMALS = 9;
uint256 internal constant ZEROES = 10**DECIMALS;
uint256 internal constant MAX = ~uint256(0);
uint256 internal constant TOTAL_SUPPLY = 10000000000 * ZEROES;
uint256 public _reflectedSupply = (MAX - (MAX % TOTAL_SUPPLY));
uint256 public constant maxTransactionAmount = TOTAL_SUPPLY / 100; // 0.5% of the total supply
uint256 public constant maxWalletBalance = TOTAL_SUPPLY / 50; // 2% of the total supply
uint256 public numberOfTokensToSwapToLiquidity = TOTAL_SUPPLY / 1000; // 0.1% of the total supply
address public marketingAddress = 0x71744d2F7a248a933FaaDEA6d0e3b3941431fAED; //Marketing Address
address public developingAddress = 0xE9f6b75219fFc2f9CC49A6B6Ce8Ef42dDDeA95A5; //Developing Address
address public charityAddress = 0x32fE594d8E5C271feEdC0EC5D2BA7A8A43C7f5B7; //Charity Address
address public teamAddress = 0x96d887790f822e74249f7029d1373FE5E562C14c; //Team Address
address public burnAddress = 0x000000000000000000000000000000000000dEaD;
uint256 public feeRedistribution = 2; //Redistribution Fee 2%
uint256 public feeBurn = 1; //Burn Fee 1%
uint256 public feeLiquidity = 2; //Liquidity Fee 2%
uint256 public feeMarketingDev = 1; //Marketing Fee 1%
uint256 public feeDevelopingDev = 1; //Developing Fee 1%
uint256 public feeCharityDev = 1; //Charity Fee 1%
uint256 public feeTeamDev = 2; //Team Fee 2%
uint256 public previousFeeRedistribution = feeRedistribution;
uint256 public previousFeeBurn = feeBurn;
uint256 public previousFeeLiquidity = feeLiquidity;
uint256 public previousFeeMarketingDev = feeMarketingDev;
uint256 public previousFeeDevelopingDev = feeDevelopingDev;
uint256 public previousFeeCharityDev = feeCharityDev;
uint256 public previousFeeTeamDev = feeTeamDev;
/////
enum FeeType { Burn, Liquidity, Rfi, External, ExternalToETH }
struct Fee {
FeeType name;
uint256 value;
address recipient;
uint256 total;
}
Fee[] internal fees;
uint256 internal sumOfFees;
constructor() {
_addFees();
}
function _addFee(FeeType name, uint256 value, address recipient) private {
fees.push( Fee(name, value, recipient, 0 ) );
sumOfFees += value;
}
function _addFees() private {
_addFee(FeeType.Rfi, feeRedistribution, address(this) ); //Redistribution Fee 1%
_addFee(FeeType.Burn, feeBurn, burnAddress ); //Burn Fee 1%
_addFee(FeeType.Liquidity, feeLiquidity, address(this) ); //Liquidity Fee 2%
_addFee(FeeType.External, feeMarketingDev, marketingAddress ); //Marketing Fee 1%
_addFee(FeeType.External, feeDevelopingDev, developingAddress ); //Developing Fee 1%
_addFee(FeeType.External, feeCharityDev, charityAddress ); //Charity Fee 1%
_addFee(FeeType.External, feeTeamDev, teamAddress ); //Team Fee 1%
}
function _getFeesCount() internal view returns (uint256){ return fees.length; }
function _getFeeStruct(uint256 index) private view returns(Fee storage){
require( index >= 0 && index < fees.length, "FeesSettings._getFeeStruct: Fee index out of bounds");
return fees[index];
}
function _getFee(uint256 index) internal view returns (FeeType, uint256, address, uint256){
Fee memory fee = _getFeeStruct(index);
return ( fee.name, fee.value, fee.recipient, fee.total );
}
function _addFeeCollectedAmount(uint256 index, uint256 amount) internal {
Fee storage fee = _getFeeStruct(index);
fee.total = fee.total.add(amount);
}
// function getCollectedFeeTotal(uint256 index) external view returns (uint256){
function getCollectedFeeTotal(uint256 index) internal view returns (uint256){
Fee memory fee = _getFeeStruct(index);
return fee.total;
}
}
/*
PRESELEABLE
*/
abstract contract Presaleable is Manageable {
bool internal isInPresale = false; //DEPRECATED, WILL ALWAYS BE FALSE
//new presale function is inside BaseRfiToken
}
/*
TOKEN CONTRACT
*/
abstract contract BaseRfiToken is IERC20, IERC20Metadata, Ownable, Presaleable, Tokenomics {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) internal _reflectedBalances;
mapping (address => uint256) internal _balances;
mapping (address => mapping (address => uint256)) internal _allowances;
mapping (address => bool) internal _isExcludedFromFee;
mapping (address => bool) internal _isExcludedFromRewards;
address[] private _excluded;
constructor(){
_reflectedBalances[owner()] = _reflectedSupply;
// exclude owner and this contract from fee
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(marketingAddress)] = true;
_isExcludedFromFee[address(developingAddress)] = true;
_isExcludedFromFee[address(charityAddress)] = true;
_isExcludedFromFee[address(teamAddress)] = true;
_isExcludedFromFee[address(this)] = true;
// exclude the owner and this contract from rewards
_exclude(owner());
_exclude(address(marketingAddress));
_exclude(address(developingAddress));
_exclude(address(charityAddress));
_exclude(address(teamAddress));
_exclude(address(this));
emit Transfer(address(0), owner(), TOTAL_SUPPLY);
}
/** Functions required by IERC20Metadat **/
function name() external pure override returns (string memory) { return NAME; }
function symbol() external pure override returns (string memory) { return SYMBOL; }
function decimals() external pure override returns (uint8) { return DECIMALS; }
/** Functions required by IERC20Metadat - END **/
/** Functions required by IERC20 **/
function totalSupply() external pure override returns (uint256) {
return TOTAL_SUPPLY;
}
function circulatingSupply() external view returns (uint256) {
return TOTAL_SUPPLY-balanceOf(0x000000000000000000000000000000000000dEaD);
}
function balanceOf(address account) public view override returns (uint256){
if (_isExcludedFromRewards[account]) return _balances[account];
return tokenFromReflection(_reflectedBalances[account]);
}
function seeContractBalance() view external returns (uint256){
return balanceOf(address(this));
}
function transfer(address recipient, uint256 amount) external override returns (bool){
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) external view override returns (uint256){
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) external override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool){
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/** Functions required by IERC20 - END **/
//CONTROLLING FEES
function setTaxAddress(address newAddress) external onlyOwner() {
marketingAddress = payable(newAddress);
developingAddress = payable(newAddress);
charityAddress = payable(newAddress);
teamAddress = payable(newAddress);
}
function setMarketingTaxFeePercent(uint256 _taxFee) external onlyOwner() {
require(_taxFee >= 0, 'Fee Too Low');
require(_taxFee <= 5, 'Fee Too High');
feeMarketingDev = _taxFee;
}
function setDevelopingTaxFeePercent(uint256 _taxFee) external onlyOwner() {
require(_taxFee >= 0, 'Fee Too Low');
require(_taxFee <= 5, 'Fee Too High');
feeDevelopingDev = _taxFee;
}
function setCharityTaxFeePercent(uint256 _taxFee) external onlyOwner() {
require(_taxFee >= 0, 'Fee Too Low');
require(_taxFee <= 5, 'Fee Too High');
feeCharityDev = _taxFee;
}
function setTeamTaxFeePercent(uint256 _taxFee) external onlyOwner() {
require(_taxFee >= 0, 'Fee Too Low');
require(_taxFee <= 5, 'Fee Too High');
feeTeamDev = _taxFee;
}
function setBurnFeePercent(uint256 _burnFee) external onlyOwner() {
require(_burnFee >= 0, 'Burn Too Low');
require(_burnFee <= 5, 'Burn Too High');
feeBurn = _burnFee;
}
function setLiquidityFeePercent(uint256 _LPFee) external onlyOwner() {
require(_LPFee >= 0, 'LP Too Low');
require(_LPFee <= 5, 'LP Too High');
feeLiquidity = _LPFee;
}
function setRedistributionFeePercent(uint256 _RDFee) external onlyOwner() {
require(_RDFee >= 0, 'LP Too Low');
require(_RDFee <= 5, 'LP Too High');
feeRedistribution = _RDFee;
}
function deactivateAllFees() external onlyOwner() {
previousFeeRedistribution = feeRedistribution;
previousFeeBurn = feeBurn;
previousFeeLiquidity = feeLiquidity;
previousFeeMarketingDev = feeMarketingDev;
previousFeeDevelopingDev = feeDevelopingDev;
previousFeeCharityDev = feeCharityDev;
previousFeeTeamDev = feeTeamDev;
feeRedistribution = 0;
feeBurn = 0;
feeLiquidity = 0;
feeMarketingDev = 0;
feeDevelopingDev = 0;
feeCharityDev = 0;
feeTeamDev = 0;
}
function activateAllFees() external onlyOwner() {
feeRedistribution = previousFeeRedistribution;
feeBurn = previousFeeBurn;
feeLiquidity = previousFeeLiquidity;
feeMarketingDev = previousFeeMarketingDev;
feeDevelopingDev = previousFeeDevelopingDev;
feeCharityDev = previousFeeCharityDev;
feeTeamDev = previousFeeTeamDev;
}
function changeLiquidityAutoswapTreshold(uint256 _number) external onlyOwner(){
numberOfTokensToSwapToLiquidity = _number;
}
//Presaleable NEW
bool public presaleEnabled = false; //NEW PRESALE FUNCTION
//Activates and Deactivates AutoLP
function setPresaleEnabled(bool value) external onlyOwner() {
presaleEnabled = value;
if (value == true){
feeLiquidity = 0;
}
else {
feeLiquidity = 2;
}
}
function burn(uint256 amount) external {
address sender = _msgSender();
require(sender != address(0), "Token: burn from the zero address");
require(sender != address(burnAddress), "Token: burn from the burn address");
uint256 balance = balanceOf(sender);
require(balance >= amount, "Token: burn amount exceeds balance");
uint256 reflectedAmount = amount.mul(_getCurrentRate());
// remove the amount from the sender's balance first
_reflectedBalances[sender] = _reflectedBalances[sender].sub(reflectedAmount);
if (_isExcludedFromRewards[sender])
_balances[sender] = _balances[sender].sub(amount);
_burnTokens( sender, amount, reflectedAmount );
}
function _burnTokens(address sender, uint256 tBurn, uint256 rBurn) internal {
/**
* @dev Do not reduce _totalSupply and/or _reflectedSupply. (soft) burning by sending
* tokens to the burn address (which should be excluded from rewards) is sufficient
*/
_reflectedBalances[burnAddress] = _reflectedBalances[burnAddress].add(rBurn);
if (_isExcludedFromRewards[burnAddress])
_balances[burnAddress] = _balances[burnAddress].add(tBurn);
/**
* @dev Emit the event so that the burn address balance is updated (on bscscan)
*/
emit Transfer(sender, burnAddress, tBurn);
}
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) external view returns (bool) {
return _isExcludedFromRewards[account];
}
/**
* @dev Calculates and returns the reflected amount for the given amount with or without
* the transfer fees (deductTransferFee true/false)
*/
function reflectionFromToken(uint256 tAmount, bool deductTransferFee) external view returns(uint256) {
require(tAmount <= TOTAL_SUPPLY, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 rAmount,,,,) = _getValues(tAmount,0);
return rAmount;
} else {
(,uint256 rTransferAmount,,,) = _getValues(tAmount,_getSumOfFees(_msgSender(), tAmount));
return rTransferAmount;
}
}
/**
* @dev Calculates and returns the amount of tokens corresponding to the given reflected amount.
*/
function tokenFromReflection(uint256 rAmount) internal view returns(uint256) {
require(rAmount <= _reflectedSupply, "Amount must be less than total reflections");
uint256 currentRate = _getCurrentRate();
return rAmount.div(currentRate);
}
function excludeFromReward(address account) external onlyOwner() {
require(!_isExcludedFromRewards[account], "Account is not included");
_exclude(account);
}
function _exclude(address account) internal {
if(_reflectedBalances[account] > 0) {
_balances[account] = tokenFromReflection(_reflectedBalances[account]);
}
_isExcludedFromRewards[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner() {
require(_isExcludedFromRewards[account], "Account is not excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_balances[account] = 0;
_isExcludedFromRewards[account] = false;
_excluded.pop();
break;
}
}
}
function setExcludedFromFee(address account, bool value) external onlyOwner { _isExcludedFromFee[account] = value; }
function isExcludedFromFee(address account) public view returns(bool) { return _isExcludedFromFee[account]; }
function _approve(address owner, address spender, uint256 amount) internal {
require(owner != address(0), "Token: approve from the zero address");
require(spender != address(0), "Token: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
*/
function _isUnlimitedSender(address account) internal view returns(bool){
// the owner should be the only whitelisted sender
return (account == owner());
}
/**
*/
function _isUnlimitedRecipient(address account) internal view returns(bool){
// the owner should be a white-listed recipient
// and anyone should be able to burn as many tokens as
// he/she wants
return (account == owner() || account == burnAddress || account == marketingAddress || account == developingAddress || account == charityAddress || account == teamAddress);
}
function _transfer(address sender, address recipient, uint256 amount) private {
require(sender != address(0), "Token: transfer from the zero address");
require(recipient != address(0), "Token: transfer to the zero address");
require(sender != address(burnAddress), "Token: transfer from the burn address");
require(amount > 0, "Transfer amount must be greater than zero");
// indicates whether or not feee should be deducted from the transfer
bool takeFee = true;
//NO FEE on presale - LP is zero, no tax, no burns
if ( isInPresale ){ takeFee = false; }
else {
/**
* Check the amount is within the max allowed limit as long as a
* unlimited sender/recepient is not involved in the transaction
*/
if ( amount > maxTransactionAmount && !_isUnlimitedSender(sender) && !_isUnlimitedRecipient(recipient) ){
revert("Transfer amount exceeds the maxTxAmount.");
}
/**
* The pair needs to excluded from the max wallet balance check;
* selling tokens is sending them back to the pair (without this
* check, selling tokens would not work if the pair's balance
* was over the allowed max)
*/
if ( maxWalletBalance > 0 && !_isUnlimitedSender(sender) && !_isUnlimitedRecipient(recipient) && !_isV2Pair(recipient) ){
uint256 recipientBalance = balanceOf(recipient);
require(recipientBalance + amount <= maxWalletBalance, "New balance would exceed the maxWalletBalance");
}
}
// if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){ takeFee = false; }
_beforeTokenTransfer(sender, recipient, amount, takeFee);
_transferTokens(sender, recipient, amount, takeFee);
}
function _transferTokens(address sender, address recipient, uint256 amount, bool takeFee) private {
uint256 sumOfFees = _getSumOfFees(sender, amount);
if ( !takeFee ){ sumOfFees = 0; }
(uint256 rAmount, uint256 rTransferAmount, uint256 tAmount, uint256 tTransferAmount, uint256 currentRate ) = _getValues(amount, sumOfFees);
_reflectedBalances[sender] = _reflectedBalances[sender].sub(rAmount);
_reflectedBalances[recipient] = _reflectedBalances[recipient].add(rTransferAmount);
if (_isExcludedFromRewards[sender]){ _balances[sender] = _balances[sender].sub(tAmount); }
if (_isExcludedFromRewards[recipient] ){ _balances[recipient] = _balances[recipient].add(tTransferAmount); }
_takeFees( amount, currentRate, sumOfFees );
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeFees(uint256 amount, uint256 currentRate, uint256 sumOfFees ) private {
if ( sumOfFees > 0 && !isInPresale ){
_takeTransactionFees(amount, currentRate);
}
}
function _getValues(uint256 tAmount, uint256 feesSum) internal view returns (uint256, uint256, uint256, uint256, uint256) {
uint256 tTotalFees = tAmount.mul(feesSum).div(FEES_DIVISOR);
uint256 tTransferAmount = tAmount.sub(tTotalFees);
uint256 currentRate = _getCurrentRate();
uint256 rAmount = tAmount.mul(currentRate);
uint256 rTotalFees = tTotalFees.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rTotalFees);
return (rAmount, rTransferAmount, tAmount, tTransferAmount, currentRate);
}
function _getCurrentRate() internal view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() internal view returns(uint256, uint256) {
uint256 rSupply = _reflectedSupply;
uint256 tSupply = TOTAL_SUPPLY;
/**
* The code below removes balances of addresses excluded from rewards from
* rSupply and tSupply, which effectively increases the % of transaction fees
* delivered to non-excluded holders
*/
for (uint256 i = 0; i < _excluded.length; i++) {
if (_reflectedBalances[_excluded[i]] > rSupply || _balances[_excluded[i]] > tSupply) return (_reflectedSupply, TOTAL_SUPPLY);
rSupply = rSupply.sub(_reflectedBalances[_excluded[i]]);
tSupply = tSupply.sub(_balances[_excluded[i]]);
}
if (tSupply == 0 || rSupply < _reflectedSupply.div(TOTAL_SUPPLY)) return (_reflectedSupply, TOTAL_SUPPLY);
return (rSupply, tSupply);
}
/**
* @dev Hook that is called before any transfer of tokens.
*/
function _beforeTokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) internal virtual;
/**
* @dev Returns the total sum of fees to be processed in each transaction.
*
* To separate concerns this contract (class) will take care of ONLY handling RFI, i.e.
* changing the rates and updating the holder's balance (via `_redistribute`).
* It is the responsibility of the dev/user to handle all other fees and taxes
* in the appropriate contracts (classes).
*/
function _getSumOfFees(address sender, uint256 amount) internal view virtual returns (uint256);
/**
* @dev A delegate which should return true if the given address is the V2 Pair and false otherwise
*/
function _isV2Pair(address account) internal view virtual returns(bool);
/**
* @dev Redistributes the specified amount among the current holders via the reflect.finance
* algorithm, i.e. by updating the _reflectedSupply (_rSupply) which ultimately adjusts the
* current rate used by `tokenFromReflection` and, in turn, the value returns from `balanceOf`.
* This is the bit of clever math which allows rfi to redistribute the fee without
* having to iterate through all holders.
*
*/
function _redistribute(uint256 amount, uint256 currentRate, uint256 fee, uint256 index) internal {
uint256 tFee = amount.mul(fee).div(FEES_DIVISOR);
uint256 rFee = tFee.mul(currentRate);
_reflectedSupply = _reflectedSupply.sub(rFee);
_addFeeCollectedAmount(index, tFee);
}
/**
* @dev Hook that is called before the `Transfer` event is emitted if fees are enabled for the transfer
*/
function _takeTransactionFees(uint256 amount, uint256 currentRate) internal virtual;
}
abstract contract Liquifier is Ownable, Manageable {
using SafeMath for uint256;
uint256 private withdrawableBalance;
enum Env {Testnet, MainnetV1, MainnetV2}
Env private _env;
// PancakeSwap V1
address private _mainnetRouterV1Address = 0x05fF2B0DB69458A0750badebc4f9e13aDd608C7F;
// PancakeSwap V2
address private _mainnetRouterV2Address = 0x10ED43C718714eb63d5aA57B78B54704E256024E;
// Testnet
// address private _testnetRouterAddress = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1;
// PancakeSwap Testnet = https://pancake.kiemtienonline360.com/
address private _testnetRouterAddress = 0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3;
IPancakeV2Router internal _router;
address internal _pair;
bool private inSwapAndLiquify;
bool private swapAndLiquifyEnabled = true;
uint256 private maxTransactionAmount;
uint256 private numberOfTokensToSwapToLiquidity;
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
event RouterSet(address indexed router);
event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event LiquidityAdded(uint256 tokenAmountSent, uint256 ethAmountSent, uint256 liquidity);
receive() external payable {}
function initializeLiquiditySwapper(Env env, uint256 maxTx, uint256 liquifyAmount) internal {
_env = env;
if (_env == Env.MainnetV1){ _setRouterAddress(_mainnetRouterV1Address); }
else if (_env == Env.MainnetV2){ _setRouterAddress(_mainnetRouterV2Address); }
else /*(_env == Env.Testnet)*/{ _setRouterAddress(_testnetRouterAddress); }
maxTransactionAmount = maxTx;
numberOfTokensToSwapToLiquidity = liquifyAmount;
}
function liquify(uint256 contractTokenBalance, address sender) internal {
if (contractTokenBalance >= maxTransactionAmount) contractTokenBalance = maxTransactionAmount;
bool isOverRequiredTokenBalance = ( contractTokenBalance >= numberOfTokensToSwapToLiquidity );
/**
* - first check if the contract has collected enough tokens to swap and liquify
* - then check swap and liquify is enabled
* - then make sure not to get caught in a circular liquidity event
* - finally, don't swap & liquify if the sender is the uniswap pair
*/
if ( isOverRequiredTokenBalance && swapAndLiquifyEnabled && !inSwapAndLiquify && (sender != _pair) ){
// TODO check if the `(sender != _pair)` is necessary because that basically
// stops swap and liquify for all "buy" transactions
_swapAndLiquify(contractTokenBalance);
}
}
/**
* @dev sets the router address and created the router, factory pair to enable
* swapping and liquifying (contract) tokens
*/
function _setRouterAddress(address router) private {
IPancakeV2Router _newPancakeRouter = IPancakeV2Router(router);
_pair = IPancakeV2Factory(_newPancakeRouter.factory()).createPair(address(this), _newPancakeRouter.WETH());
_router = _newPancakeRouter;
emit RouterSet(router);
}
function _swapAndLiquify(uint256 amount) private lockTheSwap {
// split the contract balance into halves
uint256 half = amount.div(2);
uint256 otherHalf = amount.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
// 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] = _router.WETH();
_approveDelegate(address(this), address(_router), tokenAmount);
// make the swap
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
// The minimum amount of output tokens that must be received for the transaction not to revert.
// 0 = accept any amount (slippage is inevitable)
0,
path,
address(this),
block.timestamp
);
}
function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approveDelegate(address(this), address(_router), tokenAmount);
// add tahe liquidity
(uint256 tokenAmountSent, uint256 ethAmountSent, uint256 liquidity) = _router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
// Bounds the extent to which the WETH/token price can go up before the transaction reverts.
// Must be <= amountTokenDesired; 0 = accept any amount (slippage is inevitable)
0,
// Bounds the extent to which the token/WETH price can go up before the transaction reverts.
// 0 = accept any amount (slippage is inevitable)
0,
// this is a centralized risk if the owner's account is ever compromised (see Certik SSL-04)
owner(),
block.timestamp
);
// fix the forever locked BNBs as per the certik's audit
/**
* The swapAndLiquify function converts half of the contractTokenBalance SafeMoon tokens to BNB.
* For every swapAndLiquify function call, a small amount of BNB remains in the contract.
* This amount grows over time with the swapAndLiquify function being called throughout the life
* of the contract. The Safemoon contract does not contain a method to withdraw these funds,
* and the BNB will be locked in the Safemoon contract forever.
*/
withdrawableBalance = address(this).balance;
emit LiquidityAdded(tokenAmountSent, ethAmountSent, liquidity);
}
/**
* @dev Sets the uniswapV2 pair (router & factory) for swapping and liquifying tokens
*/
function setRouterAddress(address router) external onlyManager() {
_setRouterAddress(router);
}
/**
* @dev Sends the swap and liquify flag to the provided value. If set to `false` tokens collected in the contract will
* NOT be converted into liquidity.
*/
function setSwapAndLiquifyEnabled(bool enabled) external onlyManager {
swapAndLiquifyEnabled = enabled;
emit SwapAndLiquifyEnabledUpdated(swapAndLiquifyEnabled);
}
/**
* @dev The owner can withdraw ETH(BNB) collected in the contract from `swapAndLiquify`
* or if someone (accidentally) sends ETH/BNB directly to the contract.
*
* Note: This addresses the contract flaw pointed out in the Certik Audit (SSL-03):
*
* The swapAndLiquify function converts half of the contractTokenBalance SafeMoon tokens to BNB.
* For every swapAndLiquify function call, a small amount of BNB remains in the contract.
* This amount grows over time with the swapAndLiquify function being called
* throughout the life of the contract. The Safemoon contract does not contain a method
* to withdraw these funds, and the BNB will be locked in the Safemoon contract forever.
* https://www.certik.org/projects/safemoon
*/
function withdrawLockedEth(address payable recipient) external onlyManager(){
require(recipient != address(0), "Cannot withdraw the ETH balance to the zero address");
require(withdrawableBalance > 0, "The ETH balance must be greater than 0");
// prevent re-entrancy attacks
uint256 amount = withdrawableBalance;
withdrawableBalance = 0;
recipient.transfer(amount);
}
function _approveDelegate(address owner, address spender, uint256 amount) internal virtual;
}
//////////////////////////////////////////////////////////////////////////
abstract contract Antiwhale is Tokenomics {
function _getAntiwhaleFees(uint256, uint256) internal view returns (uint256){
return sumOfFees;
}
}
//////////////////////////////////////////////////////////////////////////
abstract contract SafeToken is BaseRfiToken, Liquifier, Antiwhale {
using SafeMath for uint256;
constructor(Env _env){
initializeLiquiditySwapper(_env, maxTransactionAmount, numberOfTokensToSwapToLiquidity);
// exclude the pair address from rewards - we don't want to redistribute
// tx fees to these two; redistribution is only for holders, dah!
_exclude(_pair);
_exclude(burnAddress);
}
function _isV2Pair(address account) internal view override returns(bool){
return (account == _pair);
}
function _getSumOfFees(address sender, uint256 amount) internal view override returns (uint256){
return _getAntiwhaleFees(balanceOf(sender), amount);
}
function _beforeTokenTransfer(address sender, address , uint256 , bool ) internal override {
if ( !isInPresale ){
uint256 contractTokenBalance = balanceOf(address(this));
liquify( contractTokenBalance, sender );
}
}
function _takeTransactionFees(uint256 amount, uint256 currentRate) internal override {
if( isInPresale ){ return; }
uint256 feesCount = _getFeesCount();
for (uint256 index = 0; index < feesCount; index++ ){
(FeeType name, uint256 value, address recipient,) = _getFee(index);
// no need to check value < 0 as the value is uint (i.e. from 0 to 2^256-1)
if ( value == 0 ) continue;
if ( name == FeeType.Rfi ){
_redistribute( amount, currentRate, value, index );
}
else if ( name == FeeType.Burn ){
_burn( amount, currentRate, value, index );
}
else if ( name == FeeType.ExternalToETH){
_takeFeeToETH( amount, currentRate, value, recipient, index );
}
else {
_takeFee( amount, currentRate, value, recipient, index );
}
}
}
function _burn(uint256 amount, uint256 currentRate, uint256 fee, uint256 index) private {
uint256 tBurn = amount.mul(fee).div(FEES_DIVISOR);
uint256 rBurn = tBurn.mul(currentRate);
_burnTokens(address(this), tBurn, rBurn);
_addFeeCollectedAmount(index, tBurn);
}
function _takeFee(uint256 amount, uint256 currentRate, uint256 fee, address recipient, uint256 index) private {
uint256 tAmount = amount.mul(fee).div(FEES_DIVISOR);
uint256 rAmount = tAmount.mul(currentRate);
_reflectedBalances[recipient] = _reflectedBalances[recipient].add(rAmount);
if(_isExcludedFromRewards[recipient])
_balances[recipient] = _balances[recipient].add(tAmount);
_addFeeCollectedAmount(index, tAmount);
}
/**
* @dev When implemented this will convert the fee amount of tokens into ETH/BNB
* and send to the recipient's wallet. Note that this reduces liquidity so it
* might be a good idea to add a % into the liquidity fee for % you take our through
* this method (just a suggestions)
*/
function _takeFeeToETH(uint256 amount, uint256 currentRate, uint256 fee, address recipient, uint256 index) private {
_takeFee(amount, currentRate, fee, recipient, index);
}
function _approveDelegate(address owner, address spender, uint256 amount) internal override {
_approve(owner, spender, amount);
}
}
contract Token is SafeToken{
constructor() SafeToken(Env.MainnetV2){
_approve(owner(),address(_router), ~uint256(0));
}
}
Close this topic, and I have replied in another same topic.
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