文件 1 的 4:Address.sol
pragma solidity 0.8.4;
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
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");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 4:IERC20.sol
pragma solidity 0.8.4;
interface IERC20 {
function totalSupply() external view returns (uint256);
function symbol() external view returns(string memory);
function name() external view returns(string memory);
function balanceOf(address account) external view returns (uint256);
function decimals() external view returns (uint8);
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);
}
文件 3 的 4:IKeysStaking.sol
pragma solidity 0.8.4;
interface IKeysStaking {
function deposit(uint256 amount) external;
}
文件 4 的 4:KeysStaking.sol
pragma solidity 0.8.4;
import "./Address.sol";
import "./IERC20.sol";
import "./IKeysStaking.sol";
contract KEYSFundingReceiver {
using Address for address;
address public farm;
address public stake;
address public multisig;
address public constant KEYS = 0xe0a189C975e4928222978A74517442239a0b86ff;
uint256 public farmFee;
uint256 public stakeFee;
uint256 public multisigFee;
address public _master;
modifier onlyMaster(){require(_master == msg.sender, 'Sender Not Master'); _;}
constructor() {
_master = 0xfCacEAa7b4cf845f2cfcE6a3dA680dF1BB05015c;
multisig = 0xfCacEAa7b4cf845f2cfcE6a3dA680dF1BB05015c;
farm = 0x810487135d29f35f06f1075b48D5978F1791d743;
stake = 0xF09504B63a199158312807c5f05DaEcA734855D9;
stakeFee = 10;
farmFee = 80;
multisigFee = 10;
}
event SetFarm(address farm);
event SetStaker(address staker);
event SetMultisig(address multisig);
event SetFundPercents(uint256 farmPercentage, uint256 stakePercent, uint256 multisigPercent);
event Withdrawal(uint256 amount);
event OwnershipTransferred(address newOwner);
function setFarm(address _farm) external onlyMaster {
farm = _farm;
emit SetFarm(_farm);
}
function setStake(address _stake) external onlyMaster {
stake = _stake;
emit SetStaker(_stake);
}
function setMultisig(address _multisig) external onlyMaster {
multisig = _multisig;
emit SetMultisig(_multisig);
}
function setFundPercents(uint256 farmPercentage, uint256 stakePercent, uint256 multisigPercent) external onlyMaster {
farmFee = farmPercentage;
stakeFee = stakePercent;
multisigFee = multisigPercent;
emit SetFundPercents(farmPercentage, stakePercent, multisigPercent);
}
function manualWithdraw(address token) external onlyMaster {
uint256 bal = IERC20(token).balanceOf(address(this));
require(bal > 0);
IERC20(token).transfer(_master, bal);
emit Withdrawal(bal);
}
function ETHWithdrawal() external onlyMaster returns (bool s){
uint256 bal = address(this).balance;
require(bal > 0);
(s,) = payable(_master).call{value: bal}("");
emit Withdrawal(bal);
}
function transferMaster(address newMaster) external onlyMaster {
_master = newMaster;
emit OwnershipTransferred(newMaster);
}
function distribute() external {
_distributeYield();
}
function _distributeYield() private {
uint256 keysBal = IERC20(KEYS).balanceOf(address(this));
uint256 farmBal = (keysBal * farmFee) / 10**2;
uint256 sigBal = (keysBal * multisigFee) / 10**2;
uint256 stakeBal = keysBal - (farmBal + sigBal);
if (farmBal > 0 && farm != address(0)) {
IERC20(KEYS).approve(farm, farmBal);
IKeysStaking(farm).deposit(farmBal);
}
if (stakeBal > 0 && stake != address(0)) {
IERC20(KEYS).approve(stake, stakeBal);
IKeysStaking(stake).deposit(stakeBal);
}
if (sigBal > 0 && multisig != address(0)) {
IERC20(KEYS).transfer(multisig, sigBal);
}
}
receive() external payable {
(bool s,) = payable(KEYS).call{value: msg.value}("");
require(s, 'Failure on Token Purchase');
_distributeYield();
}
}
{
"compilationTarget": {
"contracts/KeysStaking.sol": "KEYSFundingReceiver"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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