// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)pragmasolidity ^0.8.1;/**
* @dev Collection of functions related to the address type
*/libraryAddress{
/**
* @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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/functionisContract(address account) internalviewreturns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0// for contracts in construction, since the code is only stored at the end// of the constructor execution.return account.code.length>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://consensys.net/diligence/blog/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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/functionsendValue(addresspayable 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._
*/functionfunctionCall(address target, bytesmemory data) internalreturns (bytesmemory) {
return functionCallWithValue(target, data, 0, "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._
*/functionfunctionCall(address target,
bytesmemory data,
stringmemory errorMessage
) internalreturns (bytesmemory) {
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._
*/functionfunctionCallWithValue(address target, bytesmemory data, uint256 value) internalreturns (bytesmemory) {
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._
*/functionfunctionCallWithValue(address target,
bytesmemory data,
uint256 value,
stringmemory errorMessage
) internalreturns (bytesmemory) {
require(address(this).balance>= value, "Address: insufficient balance for call");
(bool success, bytesmemory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/functionfunctionStaticCall(address target, bytesmemory data) internalviewreturns (bytesmemory) {
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._
*/functionfunctionStaticCall(address target,
bytesmemory data,
stringmemory errorMessage
) internalviewreturns (bytesmemory) {
(bool success, bytesmemory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/functionfunctionDelegateCall(address target, bytesmemory data) internalreturns (bytesmemory) {
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._
*/functionfunctionDelegateCall(address target,
bytesmemory data,
stringmemory errorMessage
) internalreturns (bytesmemory) {
(bool success, bytesmemory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/functionverifyCallResultFromTarget(address target,
bool success,
bytesmemory returndata,
stringmemory errorMessage
) internalviewreturns (bytesmemory) {
if (success) {
if (returndata.length==0) {
// only check isContract if the call was successful and the return data is empty// otherwise we already know that it was a contractrequire(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/functionverifyCallResult(bool success,
bytesmemory returndata,
stringmemory errorMessage
) internalpurereturns (bytesmemory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function_revert(bytesmemory returndata, stringmemory errorMessage) privatepure{
// Look for revert reason and bubble it up if presentif (returndata.length>0) {
// The easiest way to bubble the revert reason is using memory via assembly/// @solidity memory-safe-assemblyassembly {
let returndata_size :=mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
Contract Source Code
File 2 of 9: Context.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)pragmasolidity ^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.
*/abstractcontractContext{
function_msgSender() internalviewvirtualreturns (address) {
returnmsg.sender;
}
function_msgData() internalviewvirtualreturns (bytescalldata) {
returnmsg.data;
}
function_contextSuffixLength() internalviewvirtualreturns (uint256) {
return0;
}
}
Contract Source Code
File 3 of 9: FREEDOM.sol
//SPDX-License-Identifier: MITpragmasolidity ^0.8.0;import"./Context.sol";
import"./IERC20.sol";
import"./Ownable.sol";
import"./SafeMath.sol";
import"./Address.sol";
import"./IUniswapV2Router02.sol";
import"./IUniswapV2Factory.sol";
contractFREEDOMisContext, IERC20, Ownable{
usingSafeMathforuint256;
usingAddressforaddress;
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;
uint256privateconstant MAX =~uint256(0);
uint256private _tTotal =1_000_000_000*10**18;
uint256private _rTotal = (MAX - (MAX % _tTotal));
uint256private _tFeeTotal;
stringprivate _name ="FREEDOM";
stringprivate _symbol ="FREEDOM";
uint8private _decimals =18;
// Base Feesuint256public _taxFee =1;
uint256private _previousTaxFee = _taxFee;
uint256public _liquidityFee =2;
uint256private _previousLiquidityFee = _liquidityFee;
uint256public _burnFee =0;
uint256private _previousBurnFee = _burnFee;
uint256public _marketingFee =7;
addresspublic marketingWallet;
uint256private _previousMarketingFee = _marketingFee;
boolpublic startTrading =false;
// Sell Feesuint256public _sellTaxFee =2;
uint256public _sellLiquidityFee =5;
uint256public _sellMarketingFee =23;
uint256public _sellBurnFee =0;
IUniswapV2Router02 public uniswapV2Router;
addresspublic uniswapV2Pair;
bool inSwapAndLiquify;
boolpublic swapAndLiquifyEnabled =false;
uint256public numTokensSellToAddToLiquidity =2_000_000*10**18;
uint256public numTokensSellToMarketing =1_000_000*10**18;
boolpublic feePercentagesLocked;
mapping(address=>bool) public blacklist;
eventSwapAndLiquifyEnabledUpdated(bool enabled);
eventSwapAndLiquify(uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
modifierlockTheSwap{
inSwapAndLiquify =true;
_;
inSwapAndLiquify =false;
}
modifierfeePercentagesNotLocked{
require(!feePercentagesLocked, "Fee percentages are locked");
_;
}
constructor(IUniswapV2Router02 _uniswapV2Router, address _owner, address _marketingWallet) {
_transferOwnership(_owner);
marketingWallet = _marketingWallet;
_rOwned[_owner] = _rTotal;
// 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, anti manager and this contract from fee
_isExcludedFromFee[owner()] =true;
_isExcludedFromFee[address(this)] =true;
emit Transfer(address(0), _owner, _tTotal);
}
functionname() publicviewreturns (stringmemory) {
return _name;
}
functionsymbol() publicviewreturns (stringmemory) {
return _symbol;
}
functiondecimals() publicviewreturns (uint8) {
return _decimals;
}
functiontotalSupply() publicviewoverridereturns (uint256) {
return _tTotal;
}
functionbalanceOf(address account) publicviewoverridereturns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
functiontransfer(address recipient, uint256 amount) publicoverridereturns (bool) {
_transfer(_msgSender(), recipient, amount);
returntrue;
}
functionallowance(address owner, address spender) publicviewoverridereturns (uint256) {
return _allowances[owner][spender];
}
functionapprove(address spender, uint256 amount) publicoverridereturns (bool) {
_approve(_msgSender(), spender, amount);
returntrue;
}
functiontransferFrom(address sender, address recipient, uint256 amount) publicoverridereturns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
returntrue;
}
functionincreaseAllowance(address spender, uint256 addedValue) publicvirtualreturns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
returntrue;
}
functiondecreaseAllowance(address spender, uint256 subtractedValue) publicvirtualreturns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
returntrue;
}
functionisExcludedFromReward(address account) publicviewreturns (bool) {
return _isExcluded[account];
}
functiontotalFees() publicviewreturns (uint256) {
return _tFeeTotal;
}
functiondeliver(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);
}
functionreflectionFromToken(uint256 tAmount, bool deductTransferFee) publicviewreturns (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;
}
}
functiontokenFromReflection(uint256 rAmount) publicviewreturns (uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
functionexcludeFromReward(address account) publiconlyOwner() {
require(account !=address(uniswapV2Router), '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);
}
functionincludeInReward(address account) externalonlyOwner() {
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);
}
//to receive ETH from uniswapV2Router when swappingreceive() externalpayable{}
function_reflectFee(uint256 rFee, uint256 tFee) private{
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
function_getValues(uint256 tAmount) privateviewreturns (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) privateviewreturns (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) privatepurereturns (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() privateviewreturns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function_getCurrentSupply() privateviewreturns (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);
}
functioncalculateTaxFee(uint256 _amount) privateviewreturns (uint256) {
return _amount.mul(_taxFee).div(10**2);
}
functioncalculateLiquidityFee(uint256 _amount) privateviewreturns (uint256) {
return _amount.mul(_liquidityFee).div(10**2);
}
functionactivateSellFee() private{
_previousTaxFee = _taxFee;
_previousLiquidityFee = _liquidityFee;
_previousBurnFee = _burnFee;
_previousMarketingFee = _marketingFee;
_taxFee = _sellTaxFee;
_liquidityFee = _sellLiquidityFee;
_marketingFee = _sellMarketingFee;
_burnFee = _sellBurnFee;
}
functionremoveAllFee() private{
if (_taxFee ==0&& _liquidityFee ==0&& _marketingFee ==0&& _burnFee ==0) return;
_previousTaxFee = _taxFee;
_previousLiquidityFee = _liquidityFee;
_previousBurnFee = _burnFee;
_previousMarketingFee = _marketingFee;
_taxFee =0;
_liquidityFee =0;
_marketingFee =0;
_burnFee =0;
}
functionrestoreAllFee() private{
_taxFee = _previousTaxFee;
_liquidityFee = _previousLiquidityFee;
_burnFee = _previousBurnFee;
_marketingFee = _previousMarketingFee;
}
functionisExcludedFromFee(address account) publicviewreturns (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(addressfrom,
address to,
uint256 amount
) private{
require(from!=address(0), "ERC20: transfer from the zero address");
require(amount >0, "Transfer amount must be greater than zero");
require(!blacklist[from], "Blacklisted");
if (!startTrading &&from== uniswapV2Pair) {
require(_isExcludedFromFee[to], "Trading not started");
}
// 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));
bool overMinTokenBalance = contractTokenBalance >= (numTokensSellToAddToLiquidity + numTokensSellToMarketing);
if (overMinTokenBalance &&!inSwapAndLiquify &&from!= uniswapV2Pair && to == uniswapV2Pair && swapAndLiquifyEnabled) {
//add liquidity
swapAndLiquify(numTokensSellToAddToLiquidity, numTokensSellToMarketing);
}
//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from, to, amount);
}
functionswapAndLiquify(uint256 liquidity, uint256 marketing) privatelockTheSwap{
swapTokensForEth(marketing);
payable(marketingWallet).transfer(address(this).balance);
// split the contract balance into halvesuint256 half = liquidity.div(2);
uint256 otherHalf = liquidity.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 contractuint256 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);
}
functionswapTokensForEth(uint256 tokenAmount) private{
// generate the uniswap pair path of token -> wethaddress[] memory path =newaddress[](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
);
}
functionaddLiquidity(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 unavoidable0, // slippage is unavoidable
owner(),
block.timestamp
);
}
//this method is responsible for taking all fee, if takeFee is truefunction_tokenTransfer(address sender, address recipient, uint256 amount) private{
if (_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]) {
removeAllFee();
} elseif (recipient == uniswapV2Pair) {
activateSellFee();
}
//Calculate burn amount and marketing amountuint256 burnAmt = amount.mul(_burnFee).div(100);
uint256 marketingAmt = amount.mul(_marketingFee).div(100);
if (_isExcluded[sender] &&!_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, (amount.sub(burnAmt).sub(marketingAmt)));
} elseif (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, (amount.sub(burnAmt).sub(marketingAmt)));
} elseif (!_isExcluded[sender] &&!_isExcluded[recipient]) {
_transferStandard(sender, recipient, (amount.sub(burnAmt).sub(marketingAmt)));
} elseif (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, (amount.sub(burnAmt).sub(marketingAmt)));
} else {
_transferStandard(sender, recipient, (amount.sub(burnAmt).sub(marketingAmt)));
}
//Temporarily remove fees to transfer to burn address and marketing wallet
_taxFee =0;
_liquidityFee =0;
_transferStandard(sender, address(0), burnAmt);
_transferStandard(sender, address(this), marketingAmt);
//Restore tax and liquidity fees
_taxFee = _previousTaxFee;
_liquidityFee = _previousLiquidityFee;
if (_isExcludedFromFee[sender] || _isExcludedFromFee[recipient] || recipient == uniswapV2Pair) {
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);
}
functionexcludeFromFee(address account) publiconlyOwner{
_isExcludedFromFee[account] =true;
}
functionincludeInFee(address account) publiconlyOwner{
_isExcludedFromFee[account] =false;
}
functionsetMarketingWallet(address newWallet) externalonlyOwner() {
marketingWallet = newWallet;
}
functionsetTaxFeePercent(uint256 taxFee) externalonlyOwner() feePercentagesNotLocked() {
require(taxFee <=5, "Tax fee cannot be more than 5%");
_taxFee = taxFee;
}
functionsetLiquidityFeePercent(uint256 liquidityFee) externalonlyOwner() feePercentagesNotLocked() {
require(liquidityFee <=5, "Liquidity fee cannot be more than 5%");
_liquidityFee = liquidityFee;
}
functionsetMarketingFeePercent(uint256 marketingFee) externalonlyOwner() feePercentagesNotLocked() {
require(marketingFee <=28, "Marketing fee cannot be more than 28%");
_marketingFee = marketingFee;
}
functionsetBurnFeePercent(uint256 burnFee) externalonlyOwner() feePercentagesNotLocked() {
require(burnFee <=5, "Burn fee cannot be more than 5%");
_burnFee = burnFee;
}
functionsetSellBurnFeePercent(uint256 sellBurnFee) externalonlyOwner() feePercentagesNotLocked() {
require(sellBurnFee <=5, "Sell burn fee cannot be more than 2%");
_sellBurnFee = sellBurnFee;
}
functionsetSellMarketingFeePercent(uint256 sellMarketingFee) externalonlyOwner() feePercentagesNotLocked() {
require(sellMarketingFee <=28, "Sell marketing fee cannot be more than 28%");
_sellMarketingFee = sellMarketingFee;
}
functionsetSellLiquidityFeePercent(uint256 sellLiquidityFee) externalonlyOwner() feePercentagesNotLocked() {
require(sellLiquidityFee <=5, "Sell liquidity fee cannot be more than 5%");
_sellLiquidityFee = sellLiquidityFee;
}
functionsetSellTaxFeePercent(uint256 sellTaxFee) externalonlyOwner() feePercentagesNotLocked() {
require(sellTaxFee <=5, "Sell tax fee cannot be more than 5%");
_sellTaxFee = sellTaxFee;
}
functionlockFeePercentages() externalonlyOwnerfeePercentagesNotLocked{
feePercentagesLocked =true;
}
functionsetSwapAndLiquifyEnabled(bool _enabled) publiconlyOwner{
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
functionsetNumTokensSellToAddToLiquidity(uint256 _numTokensSellToAddToLiquidity) externalonlyOwner{
require(_numTokensSellToAddToLiquidity >0, "Cannot set zero");
numTokensSellToAddToLiquidity = _numTokensSellToAddToLiquidity;
}
functionsetNumTokensSellToMarketing(uint256 _numTokensSellToMarketing) externalonlyOwner{
require(_numTokensSellToMarketing >0, "Cannot set zero");
numTokensSellToMarketing = _numTokensSellToMarketing;
}
functiongetETHFromContract() externalonlyOwner{
payable(_msgSender()).transfer(address(this).balance);
}
functioneditBlacklist(address[] calldata account, bool[] calldata enabled) externalonlyOwner{
require(account.length== enabled.length, "Non-matching length");
for (uint256 i; i < account.length; i++) {
blacklist[account[i]] = enabled[i];
}
}
functionactivateTrading() externalonlyOwner{
startTrading =true;
}
}
Contract Source Code
File 4 of 9: IERC20.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)pragmasolidity ^0.8.0;/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/interfaceIERC20{
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/eventTransfer(addressindexedfrom, addressindexed 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.
*/eventApproval(addressindexed owner, addressindexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/functiontotalSupply() externalviewreturns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/functionbalanceOf(address account) externalviewreturns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/functiontransfer(address to, uint256 amount) externalreturns (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.
*/functionallowance(address owner, address spender) externalviewreturns (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.
*/functionapprove(address spender, uint256 amount) externalreturns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/functiontransferFrom(addressfrom, address to, uint256 amount) externalreturns (bool);
}
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)pragmasolidity ^0.8.0;import"./Context.sol";
/**
* @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.
*/abstractcontractOwnableisContext{
addressprivate _owner;
eventOwnershipTransferred(addressindexed previousOwner, addressindexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/modifieronlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/functionowner() publicviewvirtualreturns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/function_checkOwner() internalviewvirtual{
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/functionrenounceOwnership() publicvirtualonlyOwner{
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/functiontransferOwnership(address newOwner) publicvirtualonlyOwner{
require(newOwner !=address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/function_transferOwnership(address newOwner) internalvirtual{
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
Contract Source Code
File 9 of 9: SafeMath.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)pragmasolidity ^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 generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/librarySafeMath{
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/functiontryAdd(uint256 a, uint256 b) internalpurereturns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/functiontrySub(uint256 a, uint256 b) internalpurereturns (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._
*/functiontryMul(uint256 a, uint256 b) internalpurereturns (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/522if (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._
*/functiontryDiv(uint256 a, uint256 b) internalpurereturns (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._
*/functiontryMod(uint256 a, uint256 b) internalpurereturns (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.
*/functionadd(uint256 a, uint256 b) internalpurereturns (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.
*/functionsub(uint256 a, uint256 b) internalpurereturns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/functionmul(uint256 a, uint256 b) internalpurereturns (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.
*/functiondiv(uint256 a, uint256 b) internalpurereturns (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.
*/functionmod(uint256 a, uint256 b) internalpurereturns (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.
*/functionsub(uint256 a, uint256 b, stringmemory errorMessage) internalpurereturns (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.
*/functiondiv(uint256 a, uint256 b, stringmemory errorMessage) internalpurereturns (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.
*/functionmod(uint256 a, uint256 b, stringmemory errorMessage) internalpurereturns (uint256) {
unchecked {
require(b >0, errorMessage);
return a % b;
}
}
}