Address Contract Verified
Address
0xd85A4aC007cF06a4bF8dAEf180EfE522096bceeD
Balance
0.009596 ETH
Nonce
1
Code Size
11804 bytes
Creator
0xc963148b...2561 at tx 0xe0462057...ff7624
Indexed Transactions
0
Contract Bytecode
11804 bytes
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Verified Source Code Full Match
Compiler: v0.8.7+commit.e28d00a7
EVM: london
Optimization: Yes (200 runs)
degen.sol 490 lines
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract Ownable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor () {
_owner = msg.sender;
emit OwnershipTransferred(address(0), _owner);
}
/**
* @return the address of the owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(isOwner(),"Not Owner");
_;
}
/**
* @return true if `msg.sender` is the owner of the contract.
*/
function isOwner() public view returns (bool) {
return msg.sender == _owner;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0),"Zero address not allowed");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface ISwapFactory {
function swap(address tokenA, address tokenB, uint256 amount, address user, uint256 crossOrderType, uint256 dexId, uint256 deadline)
external payable returns (bool);
}
library TransferHelper {
function safeApprove(address token, address to, uint256 value) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');
}
function safeTransfer(address token, address to, uint256 value) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');
}
function safeTransferFrom(address token, address from, address to, uint256 value) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper: ETH_TRANSFER_FAILED');
}
}
interface IERC20 {
function balanceOf(address account) external view returns (uint256);
}
interface IUni {
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external payable
returns (uint[] memory amounts);
function swapExactTokensForTokens(uint amountIn, uint amountOutMin, 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 getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function WETH() external pure returns (address);
}
interface IReimbursement {
function getLicenseeFee(address licenseeVault, address projectContract) external view returns(uint256); // return fee percentage with 2 decimals
function getVaultOwner(address vault) external view returns(address);
// returns address of fee receiver or address(0) if licensee can't receive the fee (fee should be returns to user)
function requestReimbursement(address user, uint256 feeAmount, address licenseeVault) external returns(address);
}
contract Degen is Ownable {
using TransferHelper for address;
enum OrderType {EthForTokens, TokensForEth, TokensForTokens, EthForEth}
IUni public Uni = IUni(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); //mainnet network address for uniswap (valid for Ropsten as well)
IUni public Sushi = IUni(0xd9e1cE17f2641f24aE83637ab66a2cca9C378B9F); // Mainnet network address for sushiswap
//address public _sushi = address(0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506); // Ropsten network address for sushiswap
//address public USDT = address(0x47A530f3Fa882502344DC491549cA9c058dbC7Da); // Ropsten test net USDT test token
address public USDT = address(0xdAC17F958D2ee523a2206206994597C13D831ec7); // USDT Token Address
address public system;
uint256 public processingFee = 0 ;
uint256 private deadlineLimit = 20*60; // 20 minutes by default
uint256 private collectedFees = 1; // amount of collected fee (starts from 1 to avoid additional gas usage)
address public feeReceiver; // address which receive the fee (by default is validator)
IReimbursement public reimbursementContract; // reimbursement contract address
address public companyVault; // the vault address of our company registered in reimbursement contract
ISwapFactory public swapFactory;
modifier onlySystem() {
require(msg.sender == system || owner() == msg.sender,"Caller is not the system");
_;
}
constructor(address _swapFactory, address _system)
{
swapFactory = ISwapFactory(_swapFactory);
system = _system;
}
function setCompanyVault(address _comapnyVault) external onlyOwner {
companyVault = _comapnyVault;
}
function setReimbursementContract(address _reimbursementContarct) external onlyOwner {
reimbursementContract = IReimbursement(_reimbursementContarct);
}
function setProcessingFee(uint256 _processingFees) external onlySystem {
processingFee = _processingFees;
}
function setSwapFactory(address _swapFactory) external onlyOwner {
swapFactory = ISwapFactory(_swapFactory);
}
function setSystem(address _system) external onlyOwner {
system = _system;
}
function setFeeReceiver(address _addr) external onlyOwner {
feeReceiver = _addr;
}
function getDeadlineLimit() public view returns(uint256) {
return deadlineLimit;
}
function setDeadlineLimit(uint256 limit) external onlyOwner {
deadlineLimit = limit;
}
// get amount of collected fees that can be claimed
function getColletedFees() external view returns (uint256) {
// collectedFees starts from 1 to avoid additional gas usage to initiate storage (when collectedFees = 0)
return collectedFees - 1;
}
// claim fees by feeReceiver
function claimFee() external returns (uint256 feeAmount) {
require(msg.sender == feeReceiver, "This fee can be claimed only by fee receiver!!");
feeAmount = collectedFees - 1;
collectedFees = 1;
TransferHelper.safeTransferETH(msg.sender, feeAmount);
}
// Call function processFee() at the end of main function for correct gas usage calculation.
// txGas - is gasleft() on start of calling contract. Put `uint256 txGas = gasleft();` as a first command in function
// feeAmount - fee amount that user paid
// processing - processing fee (for cross-chain swaping)
// licenseeVault - address that licensee received on registration and should provide when users comes from their site
// user - address of user who has to get reimbursement (usually msg.sender)
function processFee(uint256 txGas, uint256 feeAmount, uint256 processing, address licenseeVault, address user) internal {
if (address(reimbursementContract) == address(0)) {
payable(user).transfer(feeAmount); // return fee to sender if no reimbursement contract
return;
}
uint256 licenseeFeeAmount;
if (licenseeVault != address(0)) {
uint256 companyFeeRate = reimbursementContract.getLicenseeFee(companyVault, address(this));
uint256 licenseeFeeRate = reimbursementContract.getLicenseeFee(licenseeVault, address(this));
if (licenseeFeeRate != 0)
licenseeFeeAmount = (feeAmount * licenseeFeeRate)/(licenseeFeeRate + companyFeeRate);
if (licenseeFeeAmount != 0) {
address licenseeFeeTo = reimbursementContract.requestReimbursement(user, licenseeFeeAmount, licenseeVault);
if (licenseeFeeTo == address(0)) {
payable(user).transfer(licenseeFeeAmount); // refund to user
} else {
payable(licenseeFeeTo).transfer(licenseeFeeAmount); // transfer to fee receiver
}
}
}
feeAmount -= licenseeFeeAmount; // company's part of fee
collectedFees += feeAmount;
if (processing != 0)
payable(system).transfer(processing); // transfer to fee receiver
txGas -= gasleft(); // get gas amount that was spent on Licensee fee
txGas = txGas * tx.gasprice;
// request reimbursement for user
reimbursementContract.requestReimbursement(user, feeAmount+txGas+processing, companyVault);
}
function _swap(
OrderType orderType,
address[] memory path,
uint256 assetInOffered,
uint256 minExpectedAmount,
address to,
uint256 dexId,
uint256 deadline
) internal returns(uint256 amountOut) {
require(dexId < 2, "Invalid DEX Id!");
require(deadline >= block.timestamp, "EXPIRED: Deadline for transaction already passed.");
if(dexId == 0){
uint[] memory swapResult;
if(orderType == OrderType.EthForTokens) {
path[0] = Uni.WETH();
swapResult = Uni.swapExactETHForTokens{value:assetInOffered}(0, path, to,block.timestamp);
}
else if (orderType == OrderType.TokensForEth) {
path[path.length-1] = Uni.WETH();
TransferHelper.safeApprove(path[0], address(Uni), assetInOffered);
swapResult = Uni.swapExactTokensForETH(assetInOffered, 0, path,to, block.timestamp);
}
else if (orderType == OrderType.TokensForTokens) {
TransferHelper.safeApprove(path[0], address(Uni), assetInOffered);
swapResult = Uni.swapExactTokensForTokens(assetInOffered, minExpectedAmount, path, to, block.timestamp);
}
amountOut = swapResult[swapResult.length - 1];
} else if(dexId == 1) {
uint[] memory swapResult;
if(orderType == OrderType.EthForTokens) {
path[0] = Sushi.WETH();
swapResult = Sushi.swapExactETHForTokens{value:assetInOffered}(minExpectedAmount, path, to, block.timestamp);
}
else if (orderType == OrderType.TokensForEth) {
path[path.length-1] = Sushi.WETH();
TransferHelper.safeApprove(path[0], address(Sushi), assetInOffered);
swapResult = Sushi.swapExactTokensForETH(assetInOffered, minExpectedAmount, path, to, block.timestamp);
}
else if (orderType == OrderType.TokensForTokens) {
TransferHelper.safeApprove(path[0], address(Sushi), assetInOffered);
swapResult = Sushi.swapExactTokensForTokens(assetInOffered, minExpectedAmount, path, to, block.timestamp);
}
amountOut = swapResult[swapResult.length - 1];
}
}
function executeSwap(
OrderType orderType,
address[] memory path,
uint256 assetInOffered,
uint256 fees,
uint256 minExpectedAmount,
address licenseeVault,
uint256 dexId,
uint256 deadline
) external payable {
uint256 gasA = gasleft();
uint256 receivedFees = 0;
if(deadline == 0) {
deadline = block.timestamp + deadlineLimit;
}
if(orderType == OrderType.EthForTokens){
require(msg.value >= (assetInOffered + fees), "Payment = assetInOffered + fees");
receivedFees = receivedFees + msg.value - assetInOffered;
} else {
require(msg.value >= fees, "fees not received");
receivedFees = receivedFees + msg.value;
TransferHelper.safeTransferFrom(path[0], msg.sender, address(this), assetInOffered);
}
_swap(orderType, path, assetInOffered, minExpectedAmount, msg.sender, dexId, deadline);
processFee(gasA, receivedFees, 0, licenseeVault, msg.sender);
}
function executeCrossExchange(
address[] memory path,
OrderType orderType,
uint256 crossOrderType,
uint256 assetInOffered,
uint256 fees,
uint256 minExpectedAmount,
address licenseeVault,
uint256[3] memory dexId_deadline // dexId_deadline[0] - native swap dexId, dexId_deadline[1] - foreign swap dexId, dexId_deadline[2] - deadline
) public payable {
uint256[2] memory feesPrice;
feesPrice[0] = gasleft(); // equivalent to gasA
feesPrice[1] = 0; // processing fees
if (dexId_deadline[2] == 0) { // if deadline == 0, set deadline to deadlineLimit
dexId_deadline[2] = block.timestamp + deadlineLimit;
}
if(orderType == OrderType.EthForTokens){
require(msg.value >= (assetInOffered + fees + processingFee), "Payment = assetInOffered + fees + processingFee");
feesPrice[1] = msg.value - assetInOffered - fees;
} else {
require(msg.value >= (fees + processingFee), "fees not received");
feesPrice[1] = msg.value - fees;
TransferHelper.safeTransferFrom(path[0], msg.sender, address(this), assetInOffered);
}
if(path[0] == USDT) {
TransferHelper.safeApprove(USDT, address(swapFactory), assetInOffered);
swapFactory.swap(USDT, path[path.length-1], assetInOffered, msg.sender, crossOrderType, dexId_deadline[1], dexId_deadline[2]);
}
else {
address tokenB = path[path.length-1];
path[path.length-1] = USDT;
uint256 minAmountExpected = _swap(orderType, path, assetInOffered, minExpectedAmount, address(this), dexId_deadline[0], dexId_deadline[2]);
TransferHelper.safeApprove(USDT, address(swapFactory),minAmountExpected);
swapFactory.swap(USDT, tokenB, minAmountExpected, msg.sender, crossOrderType, dexId_deadline[1], dexId_deadline[2]);
}
processFee(feesPrice[0], fees, feesPrice[1], licenseeVault, msg.sender);
}
function callbackCrossExchange(
uint256 orderType,
address[] memory path,
uint256 assetInOffered,
address user,
uint256 dexId,
uint256 deadline
) public returns(bool) {
require(msg.sender == address(swapFactory) , "Degen : caller is not SwapFactory");
if(deadline==0) {
deadline = block.timestamp + deadlineLimit;
}
_swap(OrderType(orderType), path, assetInOffered, uint256(0), user, dexId, deadline);
return true;
}
// user has to approve 1Inch router contract to transfer `assetInOffered` before calling this function
// when call `swap` API of 1Inch, you have to set:
// `fromTokenAddress` - token user want to swap (if user swap ETH use address: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
// `toTokenAddress ` - token user want to receive
// `amount` - amount of tokens user want to swap
// `fromAddress` - the user's address. MAY NOT WORK
// `slippage` - from user's setting
function executeSwap1Inch(
address[2] memory path, // path[0] - from token, path[1] - to token
OrderType orderType,
uint256 assetInOffered, // token amount or value of ETH (Form API response).
uint256 fees,
address licenseeVault,
address to, // 1Inch router. Form API response.
bytes memory data // Form API response.
) external payable {
uint256 gasA = gasleft();
uint256 receivedFees;
uint256 value;
if(orderType == OrderType.EthForTokens){
require(msg.value >= (assetInOffered + fees), "Payment = assetInOffered + fees");
receivedFees = msg.value - assetInOffered;
value = assetInOffered;
} else {
require(msg.value >= fees, "fees not received");
receivedFees = msg.value;
TransferHelper.safeTransferFrom(path[0], msg.sender, address(this), assetInOffered);
TransferHelper.safeApprove(path[0],to,assetInOffered);
}
callTo(to, value, data);
processFee(gasA, receivedFees, 0, licenseeVault, msg.sender);
}
// user has to approve 1Inch router contract to transfer `assetInOffered` before calling this function
// when call `swap` API of 1Inch, you have to set:
// `fromTokenAddress` - token user want to swap (if user swap ETH use address: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
// `toTokenAddress ` - token user want to receive
// `amount` - amount of tokens user want to swap
// `fromAddress` - the user's address
// `slippage` - from user's setting
// `destReceiver` - Degen contract address
function executeCrossExchange1Inch(
address[2] memory path, // path[0] - from token, path[1] - to token
OrderType crossOrderType,
uint256 assetInOffered, // token amount or value of ETH (Form API response).
uint256 fees,
address licenseeVault,
address to, // 1Inch router. Form API response.
bytes memory data, // Form API response.
uint256 toDEX, // destination dex that will be used on foreign chain.
uint256 deadline
) external payable {
uint256 gasA = gasleft();
uint256 _crossOrderType = uint256(crossOrderType);
uint256 value;
if(deadline==0) {
deadline = block.timestamp + deadlineLimit;
}
if(crossOrderType == OrderType.EthForTokens || crossOrderType == OrderType.EthForEth){
require(msg.value >= (assetInOffered + fees), "Payment = assetInOffered + fees");
fees = msg.value - assetInOffered;
value = assetInOffered;
} else {
require(msg.value >= fees, "fees not received");
fees = msg.value;
TransferHelper.safeTransferFrom(path[0], msg.sender, address(this), assetInOffered);
TransferHelper.safeApprove(path[0],to,assetInOffered);
}
uint256 balanceUSDT = IERC20(USDT).balanceOf(address(this));
callTo(to, value, data);
balanceUSDT = IERC20(USDT).balanceOf(address(this)) - balanceUSDT; // USDT amount that received from 1Inch swap
TransferHelper.safeApprove(USDT, address(swapFactory), balanceUSDT);
swapFactory.swap(USDT, path[1], balanceUSDT, msg.sender, _crossOrderType, toDEX, deadline);
processFee(gasA, fees, 0, licenseeVault, msg.sender);
}
function callTo(address to, uint256 value, bytes memory data) internal {
(bool success,) = to.call{value: value}(data);
require(success, "call to contract error");
}
// If someone accidentally transfer tokens to this contract, the owner will be able to rescue it and refund sender.
function rescueTokens(address _token) external onlyOwner {
if (address(0) == _token) {
payable(msg.sender).transfer(address(this).balance);
} else {
uint256 available = IERC20(_token).balanceOf(address(this));
TransferHelper.safeTransfer(_token, msg.sender, available);
}
}
}
Read Contract
Sushi 0x901bd2cc → address
USDT 0xc54e44eb → address
Uni 0x0660acb4 → address
companyVault 0x8a77ba1a → address
feeReceiver 0xb3f00674 → address
getColletedFees 0x447f25ef → uint256
getDeadlineLimit 0x5af9e7c9 → uint256
isOwner 0x8f32d59b → bool
owner 0x8da5cb5b → address
processingFee 0xde1881a8 → uint256
reimbursementContract 0x42d5350b → address
swapFactory 0x7944f944 → address
system 0x95bf75fd → address
Write Contract 16 functions
These functions modify contract state and require a wallet transaction to execute.
callbackCrossExchange 0x3500ac41
uint256 orderType
address[] path
uint256 assetInOffered
address user
uint256 dexId
uint256 deadline
returns: bool
claimFee 0x99d32fc4
No parameters
returns: uint256
executeCrossExchange 0xc3d73018
address[] path
uint8 orderType
uint256 crossOrderType
uint256 assetInOffered
uint256 fees
uint256 minExpectedAmount
address licenseeVault
uint256[3] dexId_deadline
executeCrossExchange1Inch 0x3d45b7f3
address[2] path
uint8 crossOrderType
uint256 assetInOffered
uint256 fees
address licenseeVault
address to
bytes data
uint256 toDEX
uint256 deadline
executeSwap 0x2ffda2b4
uint8 orderType
address[] path
uint256 assetInOffered
uint256 fees
uint256 minExpectedAmount
address licenseeVault
uint256 dexId
uint256 deadline
executeSwap1Inch 0x4061215d
address[2] path
uint8 orderType
uint256 assetInOffered
uint256 fees
address licenseeVault
address to
bytes data
renounceOwnership 0x715018a6
No parameters
rescueTokens 0x00ae3bf8
address _token
setCompanyVault 0x9c9bb1e3
address _comapnyVault
setDeadlineLimit 0x69fb1075
uint256 limit
setFeeReceiver 0xefdcd974
address _addr
setProcessingFee 0x9461446d
uint256 _processingFees
setReimbursementContract 0x64776276
address _reimbursementContarct
setSwapFactory 0xc34e596f
address _swapFactory
setSystem 0x55837757
address _system
transferOwnership 0xf2fde38b
address newOwner
Recent Transactions
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