Contract Name:
HuckleberryLP
Contract Source Code:
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "../../interfaces/IUniswapV2Router02.sol";
import "../../interfaces/IUniswapV2Pair.sol";
import "../../interfaces/huckleberry/IMasterChef.sol";
import "../../interfaces/IByalan.sol";
import "../ByalanIsland.sol";
import "../Sailor.sol";
contract HuckleberryLP is ByalanIsland, Sailor, IByalan {
using SafeERC20 for IERC20;
using Address for address payable;
// Tokens used
address public constant WCLV = 0x6d6AD95425FcF315c39Fa6F3226471d4f16F27B3;
address public constant FINN = 0xBeA4928632e482A0A1241B38f596a311Ad7b98B1;
address public immutable override want;
address public immutable lpToken0;
address public immutable lpToken1;
// Third party contracts
address public constant MASTERCHEF = 0x67dc6E39A46EfCBd9ec7bb8d490EFF6DF9c9B047;
uint256 public immutable pid;
// Routes
address[] public finnToWbnbRoute;
address[] public finnToLp0Route;
address[] public finnToLp1Route;
event Harvest(address indexed harvester);
constructor(
address _hydra,
address _izlude,
address _kswFeeRecipient,
address _treasuryFeeRecipient,
address _harvester,
uint256 _pid,
address[] memory _finnToLp0Route,
address[] memory _finnToLp1Route
)
ByalanIsland(
_hydra,
0x5D91eAEe3a8b2A73B0505c9585cBFCD81d972d7E,
_izlude,
_kswFeeRecipient,
_treasuryFeeRecipient,
_harvester
)
{
pid = _pid;
want = IMasterChef(MASTERCHEF).poolInfo(_pid).lpToken;
lpToken0 = IUniswapV2Pair(want).token0();
lpToken1 = IUniswapV2Pair(want).token1();
finnToWbnbRoute = [FINN, WCLV];
if (lpToken0 != FINN) {
require(_finnToLp0Route[0] == FINN, "invalid lp 0 route");
require(_finnToLp0Route[_finnToLp0Route.length - 1] == lpToken0, "invalid lp 0 route");
require(
IUniswapV2Router02(unirouter).getAmountsOut(1 ether, _finnToLp0Route)[_finnToLp0Route.length - 1] > 0,
"invalid lp 0 route"
);
finnToLp0Route = _finnToLp0Route;
}
if (lpToken1 != FINN) {
require(_finnToLp1Route[0] == FINN, "invalid lp 1 route");
require(_finnToLp1Route[_finnToLp1Route.length - 1] == lpToken1, "invalid lp 1 route");
require(
IUniswapV2Router02(unirouter).getAmountsOut(1 ether, _finnToLp1Route)[_finnToLp1Route.length - 1] > 0,
"invalid lp 1 route"
);
finnToLp1Route = _finnToLp1Route;
}
_giveAllowances();
}
/**
* @dev Function to synchronize balances before new user deposit.
*/
function beforeDeposit() external override {}
// puts the funds to work
function deposit() public override whenNotPaused {
uint256 wantBal = IERC20(want).balanceOf(address(this));
if (wantBal > 0) {
IMasterChef(MASTERCHEF).deposit(pid, wantBal);
}
}
function withdraw(uint256 _amount) external override onlyIzlude {
uint256 wantBal = IERC20(want).balanceOf(address(this));
if (wantBal < _amount) {
IMasterChef(MASTERCHEF).withdraw(pid, _amount - wantBal);
wantBal = IERC20(want).balanceOf(address(this));
}
if (wantBal > _amount) {
wantBal = _amount;
}
IERC20(want).safeTransfer(izlude, wantBal);
}
// compounds earnings and charges performance fee
function harvest() external override whenNotPaused onlyEOA onlyHarvester gasThrottle {
IMasterChef(MASTERCHEF).deposit(pid, 0);
chargeFees();
addLiquidity();
deposit();
emit Harvest(msg.sender);
}
// performance fees
function chargeFees() internal {
uint256 toBnb = (IERC20(FINN).balanceOf(address(this)) * totalFee) / MAX_FEE;
IUniswapV2Router02(unirouter).swapExactTokensForETH(toBnb, 0, finnToWbnbRoute, address(this), block.timestamp);
uint256 bnbBal = address(this).balance;
uint256 callFeeAmount = (bnbBal * callFee) / feeSum;
payable(msg.sender).sendValue(callFeeAmount);
uint256 treasuryFeeAmount = (bnbBal * treasuryFee) / feeSum;
payable(treasuryFeeRecipient).sendValue(treasuryFeeAmount);
uint256 kswFeeAmount = (bnbBal * kswFee) / feeSum;
payable(kswFeeRecipient).sendValue(kswFeeAmount);
}
// Adds liquidity to AMM and gets more LP tokens.
function addLiquidity() internal {
uint256 finnHalf = IERC20(FINN).balanceOf(address(this)) / 2;
if (lpToken0 != FINN) {
IUniswapV2Router02(unirouter).swapExactTokensForTokens(
finnHalf,
0,
finnToLp0Route,
address(this),
block.timestamp
);
}
if (lpToken1 != FINN) {
IUniswapV2Router02(unirouter).swapExactTokensForTokens(
finnHalf,
0,
finnToLp1Route,
address(this),
block.timestamp
);
}
IUniswapV2Router02(unirouter).addLiquidity(
lpToken0,
lpToken1,
IERC20(lpToken0).balanceOf(address(this)),
IERC20(lpToken1).balanceOf(address(this)),
0,
0,
address(this),
block.timestamp
);
}
// calculate the total underlaying 'want' held by the strat.
function balanceOf() external view override returns (uint256) {
return balanceOfWant() + balanceOfPool();
}
// it calculates how much 'want' this contract holds.
function balanceOfWant() public view override returns (uint256) {
return IERC20(want).balanceOf(address(this));
}
// it calculates how much 'want' the strategy has working in the farm.
function balanceOfPool() public view override returns (uint256) {
return IMasterChef(MASTERCHEF).userInfo(pid, address(this)).amount;
}
function balanceOfMasterChef() external view override returns (uint256) {
return IERC20(want).balanceOf(MASTERCHEF);
}
function pendingRewardTokens()
external
view
override
returns (IERC20[] memory rewardTokens, uint256[] memory rewardAmounts)
{
rewardTokens = new IERC20[](1);
rewardAmounts = new uint256[](1);
rewardTokens[0] = IERC20(FINN);
rewardAmounts[0] =
IMasterChef(MASTERCHEF).pendingReward(pid, address(this)) +
IERC20(FINN).balanceOf(address(this));
}
// called as part of strategy migration. Sends all the available funds back to the vault.
function retireStrategy() external override onlyIzlude {
IMasterChef(MASTERCHEF).emergencyWithdraw(pid);
uint256 wantBal = IERC20(want).balanceOf(address(this));
IERC20(want).transfer(izlude, wantBal);
}
// pauses deposits and withdraws all funds from third party systems.
function panic() external override onlyHydra {
pause();
IMasterChef(MASTERCHEF).emergencyWithdraw(pid);
}
function pause() public override onlyHydra {
_pause();
_removeAllowances();
}
function unpause() external override onlyHydra {
_unpause();
_giveAllowances();
deposit();
}
function paused() public view override(IByalan, Pausable) returns (bool) {
return super.paused();
}
function _giveAllowances() internal {
IERC20(want).safeApprove(MASTERCHEF, type(uint256).max);
IERC20(FINN).safeApprove(unirouter, type(uint256).max);
// lp token 0 and 1 maybe finn so approve 0 is needed here
IERC20(lpToken0).safeApprove(unirouter, 0);
IERC20(lpToken0).safeApprove(unirouter, type(uint256).max);
IERC20(lpToken1).safeApprove(unirouter, 0);
IERC20(lpToken1).safeApprove(unirouter, type(uint256).max);
}
function _removeAllowances() internal {
IERC20(want).safeApprove(MASTERCHEF, 0);
IERC20(FINN).safeApprove(unirouter, 0);
IERC20(lpToken0).safeApprove(unirouter, 0);
IERC20(lpToken1).safeApprove(unirouter, 0);
}
receive() external payable {
require(msg.sender == unirouter, "reject");
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(address indexed sender, uint256 amount0, uint256 amount1, address indexed to);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to) external returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface IMasterChef {
struct UserInfo {
uint256 amount;
uint256 rewardDebt;
}
struct PoolInfo {
address lpToken;
uint256 allocPoint;
uint256 lastRewardTimestamp;
uint256 accRewardPerShare;
}
function deposit(uint256 _pid, uint256 _amount) external;
function withdraw(uint256 _pid, uint256 _amount) external;
function pendingReward(uint256 _pid, address _user) external view returns (uint256);
function userInfo(uint256 _pid, address _user) external view returns (UserInfo memory);
function poolInfo(uint256 _pid) external view returns (PoolInfo memory);
function emergencyWithdraw(uint256 _pid) external;
function finnPerSecond() external view returns (uint256);
function startTime() external view returns (uint256);
function allEndTime() external view returns (uint256);
function totalAllocPoint() external view returns (uint256);
function getMultiplier(uint256 _from, uint256 _to) external view returns (uint256);
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./IByalanIsland.sol";
import "./ISailor.sol";
interface IByalan is IByalanIsland, ISailor {
function want() external view returns (address);
function beforeDeposit() external;
function deposit() external;
function withdraw(uint256) external;
function balanceOf() external view returns (uint256);
function balanceOfWant() external view returns (uint256);
function balanceOfPool() external view returns (uint256);
function balanceOfMasterChef() external view returns (uint256);
function pendingRewardTokens() external view returns (IERC20[] memory rewardTokens, uint256[] memory rewardAmounts);
function harvest() external;
function retireStrategy() external;
function panic() external;
function pause() external;
function unpause() external;
function paused() external view returns (bool);
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "../interfaces/IByalanIsland.sol";
import "../interfaces/IGasPrice.sol";
abstract contract ByalanIsland is Ownable, Pausable, IByalanIsland {
address public hydra;
address public unirouter;
address public override izlude;
address public kswFeeRecipient;
address public treasuryFeeRecipient;
address public harvester;
address public gasPrice = 0xab69A92cC3286d438Dcd748e3E71060538c86fFb;
event SetHydra(address hydra);
event SetRouter(address router);
event SetKswFeeRecipient(address kswFeeRecipient);
event SetTreasuryFeeRecipient(address treasuryFeeRecipient);
event SetHarvester(address harvester);
event SetGasPrice(address gasPrice);
constructor(
address _hydra,
address _unirouter,
address _izlude,
address _kswFeeRecipient,
address _treasuryFeeRecipient,
address _harvester
) {
hydra = _hydra;
unirouter = _unirouter;
izlude = _izlude;
kswFeeRecipient = _kswFeeRecipient;
treasuryFeeRecipient = _treasuryFeeRecipient;
harvester = _harvester;
}
// checks that caller is either owner or hydra.
modifier onlyHydra() {
require(msg.sender == owner() || msg.sender == hydra, "!hydra");
_;
}
// verifies that the caller is not a contract.
modifier onlyEOA() {
require(msg.sender == tx.origin, "!EOA");
_;
}
modifier onlyIzlude() {
require(msg.sender == izlude, "!izlude");
_;
}
modifier onlyEOAandIzlude() {
require(tx.origin == msg.sender || msg.sender == izlude, "!contract");
_;
}
modifier onlyHarvester() {
require(harvester == address(0) || msg.sender == harvester, "!harvester");
_;
}
modifier gasThrottle() {
require(tx.gasprice <= IGasPrice(gasPrice).maxGasPrice(), "gas is too high!");
_;
}
function setHydra(address _hydra) external onlyHydra {
hydra = _hydra;
emit SetHydra(_hydra);
}
function setUnirouter(address _unirouter) external onlyOwner {
unirouter = _unirouter;
emit SetRouter(_unirouter);
}
function setIzlude(address _izlude) external onlyOwner {
require(izlude == address(0), "already set");
izlude = _izlude;
}
function setTreasuryFeeRecipient(address _treasuryFeeRecipient) external onlyOwner {
treasuryFeeRecipient = _treasuryFeeRecipient;
emit SetTreasuryFeeRecipient(_treasuryFeeRecipient);
}
function setKswFeeRecipient(address _kswFeeRecipient) external onlyOwner {
kswFeeRecipient = _kswFeeRecipient;
emit SetKswFeeRecipient(_kswFeeRecipient);
}
function setHarvester(address _harvester) external onlyOwner {
harvester = _harvester;
emit SetHarvester(_harvester);
}
function setGasPrice(address _gasPrice) external onlyHydra {
gasPrice = _gasPrice;
emit SetGasPrice(_gasPrice);
}
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./ByalanIsland.sol";
import "../interfaces/ISailor.sol";
abstract contract Sailor is ByalanIsland, ISailor {
uint256 public constant override MAX_FEE = 10000;
uint256 public override totalFee = 300; // 3%
uint256 public constant MAX_TOTAL_FEE = 1000; // 10%
uint256 public override callFee = 4000; // 40% of total fee
uint256 public treasuryFee = 3000; // 30% of total fee
uint256 public override kswFee = 3000; // 30% of total fee
uint256 public feeSum = 10000;
event SetTotalFee(uint256 totalFee);
event SetCallFee(uint256 fee);
event SetTreasuryFee(uint256 fee);
event SetKSWFee(uint256 fee);
function setTotalFee(uint256 _totalFee) external onlyOwner {
require(_totalFee <= MAX_TOTAL_FEE, "!cap");
totalFee = _totalFee;
emit SetTotalFee(_totalFee);
}
function setCallFee(uint256 _fee) external onlyOwner {
callFee = _fee;
feeSum = callFee + treasuryFee + kswFee;
emit SetCallFee(_fee);
}
function setTreasuryFee(uint256 _fee) external onlyOwner {
treasuryFee = _fee;
feeSum = callFee + treasuryFee + kswFee;
emit SetTreasuryFee(_fee);
}
function setKSWFee(uint256 _fee) external onlyOwner {
kswFee = _fee;
feeSum = callFee + treasuryFee + kswFee;
emit SetKSWFee(_fee);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface IByalanIsland {
function izlude() external view returns (address);
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface ISailor {
function MAX_FEE() external view returns (uint256);
function totalFee() external view returns (uint256);
function callFee() external view returns (uint256);
function kswFee() external view returns (uint256);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/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.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface IGasPrice {
function maxGasPrice() external returns (uint256);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}