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Latest 25 internal transactions (View All)
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Contract Name:
PoolFactory
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 10000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
/* PoolFactory https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; import "./interfaces/IPoolFactory.sol"; import "./interfaces/IModuleFactory.sol"; import "./interfaces/IStakingModule.sol"; import "./interfaces/IRewardModule.sol"; import "./OwnerController.sol"; import "./Pool.sol"; /** * @title Pool factory * * @notice this implements the Pool factory contract which allows any user to * easily configure and deploy their own Pool * * @dev it relies on a system of sub-factories which are responsible for the * creation of underlying staking and reward modules. This primary factory * calls each module factory and assembles the overall Pool contract. * * this contract also manages various privileged platform settings including * treasury address, fee amount, and module factory whitelist. */ contract PoolFactory is IPoolFactory, OwnerController { // events event PoolCreated(address indexed user, address pool); event FeeUpdated(uint256 previous, uint256 updated); event TreasuryUpdated(address previous, address updated); event WhitelistUpdated( address indexed factory, uint256 previous, uint256 updated ); // types enum ModuleFactoryType {Unknown, Staking, Reward} // constants uint256 public constant MAX_FEE = 20 * 10**16; // 20% // fields mapping(address => bool) public map; address[] public list; address private _gysr; address private _treasury; uint256 private _fee; mapping(address => ModuleFactoryType) public whitelist; /** * @param gysr_ address of GYSR token */ constructor(address gysr_, address treasury_) { _gysr = gysr_; _treasury = treasury_; _fee = MAX_FEE; } /** * @notice create a new Pool * @param staking address of factory that will be used to create staking module * @param reward address of factory that will be used to create reward module * @param stakingdata construction data for staking module factory * @param rewarddata construction data for reward module factory * @return address of newly created Pool */ function create( address staking, address reward, bytes calldata stakingdata, bytes calldata rewarddata ) external returns (address) { // validate require(whitelist[staking] == ModuleFactoryType.Staking, "f1"); require(whitelist[reward] == ModuleFactoryType.Reward, "f2"); // create modules address stakingModule = IModuleFactory(staking).createModule(stakingdata); address rewardModule = IModuleFactory(reward).createModule(rewarddata); // create pool Pool pool = new Pool(stakingModule, rewardModule, _gysr, address(this)); // set access IStakingModule(stakingModule).transferOwnership(address(pool)); IRewardModule(rewardModule).transferOwnership(address(pool)); pool.transferControl(msg.sender); // this also sets controller for modules pool.transferOwnership(msg.sender); // bookkeeping map[address(pool)] = true; list.push(address(pool)); // output emit PoolCreated(msg.sender, address(pool)); return address(pool); } /** * @inheritdoc IPoolFactory */ function treasury() external view override returns (address) { return _treasury; } /** * @inheritdoc IPoolFactory */ function fee() external view override returns (uint256) { return _fee; } /** * @notice update the GYSR treasury address * @param treasury_ new value for treasury address */ function setTreasury(address treasury_) external { requireController(); emit TreasuryUpdated(_treasury, treasury_); _treasury = treasury_; } /** * @notice update the global GYSR spending fee * @param fee_ new value for GYSR spending fee */ function setFee(uint256 fee_) external { requireController(); require(fee_ <= MAX_FEE, "f3"); emit FeeUpdated(_fee, fee_); _fee = fee_; } /** * @notice set the whitelist status of a module factory * @param factory_ address of module factory * @param type_ updated whitelist status for module */ function setWhitelist(address factory_, uint256 type_) external { requireController(); require(type_ <= uint256(ModuleFactoryType.Reward), "f4"); require(factory_ != address(0), "f5"); emit WhitelistUpdated(factory_, uint256(whitelist[factory_]), type_); whitelist[factory_] = ModuleFactoryType(type_); } /** * @return total number of Pools created by the factory */ function count() public view returns (uint256) { return list.length; } }
/* OwnerController https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; /** * @title Owner controller * * @notice this base contract implements an owner-controller access model. * * @dev the contract is an adapted version of the OpenZeppelin Ownable contract. * It allows the owner to designate an additional account as the controller to * perform restricted operations. * * Other changes include supporting role verification with a require method * in addition to the modifier option, and removing some unneeded functionality. * * Original contract here: * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol */ contract OwnerController { address private _owner; address private _controller; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); event ControlTransferred( address indexed previousController, address indexed newController ); constructor() { _owner = msg.sender; _controller = msg.sender; emit OwnershipTransferred(address(0), _owner); emit ControlTransferred(address(0), _owner); } /** * @dev Returns the address of the current owner. */ function owner() public view returns (address) { return _owner; } /** * @dev Returns the address of the current controller. */ function controller() public view returns (address) { return _controller; } /** * @dev Modifier that throws if called by any account other than the owner. */ modifier onlyOwner() { require(_owner == msg.sender, "oc1"); _; } /** * @dev Modifier that throws if called by any account other than the controller. */ modifier onlyController() { require(_controller == msg.sender, "oc2"); _; } /** * @dev Throws if called by any account other than the owner. */ function requireOwner() internal view { require(_owner == msg.sender, "oc1"); } /** * @dev Throws if called by any account other than the controller. */ function requireController() internal view { require(_controller == msg.sender, "oc2"); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). This can * include renouncing ownership by transferring to the zero address. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual { requireOwner(); require(newOwner != address(0), "oc3"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } /** * @dev Transfers control of the contract to a new account (`newController`). * Can only be called by the owner. */ function transferControl(address newController) public virtual { requireOwner(); require(newController != address(0), "oc4"); emit ControlTransferred(_controller, newController); _controller = newController; } }
/* Pool https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "./interfaces/IPool.sol"; import "./interfaces/IPoolFactory.sol"; import "./interfaces/IStakingModule.sol"; import "./interfaces/IRewardModule.sol"; import "./interfaces/IEvents.sol"; import "./OwnerController.sol"; /** * @title Pool * * @notice this implements the GYSR core Pool contract. It supports generalized * incentive mechanisms through a modular architecture, where * staking and reward logic is contained in child contracts. */ contract Pool is IPool, IEvents, ReentrancyGuard, OwnerController { using SafeERC20 for IERC20; // constants uint256 public constant DECIMALS = 18; // modules IStakingModule private immutable _staking; IRewardModule private immutable _reward; // gysr fields IERC20 private immutable _gysr; IPoolFactory private immutable _factory; uint256 private _gysrVested; /** * @param staking_ the staking module address * @param reward_ the reward module address * @param gysr_ address for GYSR token * @param factory_ address for parent factory */ constructor( address staking_, address reward_, address gysr_, address factory_ ) { _staking = IStakingModule(staking_); _reward = IRewardModule(reward_); _gysr = IERC20(gysr_); _factory = IPoolFactory(factory_); } // -- IPool -------------------------------------------------------------- /** * @inheritdoc IPool */ function stakingTokens() external view override returns (address[] memory) { return _staking.tokens(); } /** * @inheritdoc IPool */ function rewardTokens() external view override returns (address[] memory) { return _reward.tokens(); } /** * @inheritdoc IPool */ function stakingBalances(address user) external view override returns (uint256[] memory) { return _staking.balances(user); } /** * @inheritdoc IPool */ function stakingTotals() external view override returns (uint256[] memory) { return _staking.totals(); } /** * @inheritdoc IPool */ function rewardBalances() external view override returns (uint256[] memory) { return _reward.balances(); } /** * @inheritdoc IPool */ function usage() external view override returns (uint256) { return _reward.usage(); } /** * @inheritdoc IPool */ function stakingModule() external view override returns (address) { return address(_staking); } /** * @inheritdoc IPool */ function rewardModule() external view override returns (address) { return address(_reward); } /** * @inheritdoc IPool */ function stake( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external override nonReentrant { (address account, uint256 shares) = _staking.stake(msg.sender, amount, stakingdata); (uint256 spent, uint256 vested) = _reward.stake(account, msg.sender, shares, rewarddata); _processGysr(spent, vested); } /** * @inheritdoc IPool */ function unstake( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external override nonReentrant { (address account, uint256 shares) = _staking.unstake(msg.sender, amount, stakingdata); (uint256 spent, uint256 vested) = _reward.unstake(account, msg.sender, shares, rewarddata); _processGysr(spent, vested); } /** * @inheritdoc IPool */ function claim( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external override nonReentrant { (address account, uint256 shares) = _staking.claim(msg.sender, amount, stakingdata); (uint256 spent, uint256 vested) = _reward.claim(account, msg.sender, shares, rewarddata); _processGysr(spent, vested); } /** * @inheritdoc IPool */ function update() external override nonReentrant { _staking.update(msg.sender); _reward.update(msg.sender); } /** * @inheritdoc IPool */ function clean() external override nonReentrant { requireController(); _staking.clean(); _reward.clean(); } /** * @inheritdoc IPool */ function gysrBalance() external view override returns (uint256) { return _gysrVested; } /** * @inheritdoc IPool */ function withdraw(uint256 amount) external override { requireController(); require(amount > 0, "p1"); require(amount <= _gysrVested, "p2"); // do transfer _gysr.safeTransfer(msg.sender, amount); _gysrVested = _gysrVested - amount; emit GysrWithdrawn(amount); } /** * @notice transfer control of the Pool and modules to another account * @param newController address of new controller */ function transferControl(address newController) public override { super.transferControl(newController); _staking.transferControl(newController); _reward.transferControl(newController); } // -- Pool internal ----------------------------------------------------- /** * @dev private method to process GYSR spending and vesting * @param spent number of tokens to unstake * @param vested data passed to staking module */ function _processGysr(uint256 spent, uint256 vested) private { // spending if (spent > 0) { _gysr.safeTransferFrom(msg.sender, address(this), spent); } // vesting if (vested > 0) { uint256 fee = (vested * _factory.fee()) / 10**DECIMALS; if (fee > 0) { _gysr.safeTransfer(_factory.treasury(), fee); } _gysrVested = _gysrVested + vested - fee; } } }
/* IEvents https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; /** * @title GYSR event system * * @notice common interface to define GYSR event system */ interface IEvents { // staking event Staked( address indexed user, address indexed token, uint256 amount, uint256 shares ); event Unstaked( address indexed user, address indexed token, uint256 amount, uint256 shares ); event Claimed( address indexed user, address indexed token, uint256 amount, uint256 shares ); // rewards event RewardsDistributed( address indexed user, address indexed token, uint256 amount, uint256 shares ); event RewardsFunded( address indexed token, uint256 amount, uint256 shares, uint256 timestamp ); event RewardsUnlocked(address indexed token, uint256 shares); event RewardsExpired( address indexed token, uint256 amount, uint256 shares, uint256 timestamp ); // gysr event GysrSpent(address indexed user, uint256 amount); event GysrVested(address indexed user, uint256 amount); event GysrWithdrawn(uint256 amount); }
/* IModuleFactory https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; /** * @title Module factory interface * * @notice this defines the common module factory interface used by the * main factory to create the staking and reward modules for a new Pool. */ interface IModuleFactory { // events event ModuleCreated(address indexed user, address module); /** * @notice create a new Pool module * @param data binary encoded construction parameters * @return address of newly created module */ function createModule(bytes calldata data) external returns (address); }
/* IPool https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; /** * @title Pool interface * * @notice this defines the core Pool contract interface */ interface IPool { /** * @return staking tokens for Pool */ function stakingTokens() external view returns (address[] memory); /** * @return reward tokens for Pool */ function rewardTokens() external view returns (address[] memory); /** * @return staking balances for user */ function stakingBalances(address user) external view returns (uint256[] memory); /** * @return total staking balances for Pool */ function stakingTotals() external view returns (uint256[] memory); /** * @return reward balances for Pool */ function rewardBalances() external view returns (uint256[] memory); /** * @return GYSR usage ratio for Pool */ function usage() external view returns (uint256); /** * @return address of staking module */ function stakingModule() external view returns (address); /** * @return address of reward module */ function rewardModule() external view returns (address); /** * @notice stake asset and begin earning rewards * @param amount number of tokens to unstake * @param stakingdata data passed to staking module * @param rewarddata data passed to reward module */ function stake( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external; /** * @notice unstake asset and claim rewards * @param amount number of tokens to unstake * @param stakingdata data passed to staking module * @param rewarddata data passed to reward module */ function unstake( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external; /** * @notice claim rewards without unstaking * @param amount number of tokens to claim against * @param stakingdata data passed to staking module * @param rewarddata data passed to reward module */ function claim( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external; /** * @notice method called ad hoc to update user accounting */ function update() external; /** * @notice method called ad hoc to clean up and perform additional accounting */ function clean() external; /** * @return gysr balance available for withdrawal */ function gysrBalance() external view returns (uint256); /** * @notice withdraw GYSR tokens applied during unstaking * @param amount number of GYSR to withdraw */ function withdraw(uint256 amount) external; }
/* IPoolFactory https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; /** * @title Pool factory interface * * @notice this defines the Pool factory interface, primarily intended for * the Pool contract to interact with */ interface IPoolFactory { /** * @return GYSR treasury address */ function treasury() external view returns (address); /** * @return GYSR spending fee */ function fee() external view returns (uint256); }
/* IRewardModule https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "./IEvents.sol"; import "../OwnerController.sol"; /** * @title Reward module interface * * @notice this contract defines the common interface that any reward module * must implement to be compatible with the modular Pool architecture. */ abstract contract IRewardModule is OwnerController, IEvents { // constants uint256 public constant DECIMALS = 18; /** * @return array of reward tokens */ function tokens() external view virtual returns (address[] memory); /** * @return array of reward token balances */ function balances() external view virtual returns (uint256[] memory); /** * @return GYSR usage ratio for reward module */ function usage() external view virtual returns (uint256); /** * @return address of module factory */ function factory() external view virtual returns (address); /** * @notice perform any necessary accounting for new stake * @param account address of staking account * @param user address of user * @param shares number of new shares minted * @param data addtional data * @return amount of gysr spent * @return amount of gysr vested */ function stake( address account, address user, uint256 shares, bytes calldata data ) external virtual returns (uint256, uint256); /** * @notice reward user and perform any necessary accounting for unstake * @param account address of staking account * @param user address of user * @param shares number of shares burned * @param data additional data * @return amount of gysr spent * @return amount of gysr vested */ function unstake( address account, address user, uint256 shares, bytes calldata data ) external virtual returns (uint256, uint256); /** * @notice reward user and perform and necessary accounting for existing stake * @param account address of staking account * @param user address of user * @param shares number of shares being claimed against * @param data addtional data * @return amount of gysr spent * @return amount of gysr vested */ function claim( address account, address user, uint256 shares, bytes calldata data ) external virtual returns (uint256, uint256); /** * @notice method called by anyone to update accounting * @param user address of user for update * @dev will only be called ad hoc and should not contain essential logic */ function update(address user) external virtual; /** * @notice method called by owner to clean up and perform additional accounting * @dev will only be called ad hoc and should not contain any essential logic */ function clean() external virtual; }
/* IStakingModule https://github.com/gysr-io/core SPDX-License-Identifier: MIT */ pragma solidity 0.8.4; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "./IEvents.sol"; import "../OwnerController.sol"; /** * @title Staking module interface * * @notice this contract defines the common interface that any staking module * must implement to be compatible with the modular Pool architecture. */ abstract contract IStakingModule is OwnerController, IEvents { // constants uint256 public constant DECIMALS = 18; /** * @return array of staking tokens */ function tokens() external view virtual returns (address[] memory); /** * @notice get balance of user * @param user address of user * @return balances of each staking token */ function balances(address user) external view virtual returns (uint256[] memory); /** * @return address of module factory */ function factory() external view virtual returns (address); /** * @notice get total staked amount * @return totals for each staking token */ function totals() external view virtual returns (uint256[] memory); /** * @notice stake an amount of tokens for user * @param user address of user * @param amount number of tokens to stake * @param data additional data * @return address of staking account * @return number of shares minted for stake */ function stake( address user, uint256 amount, bytes calldata data ) external virtual returns (address, uint256); /** * @notice unstake an amount of tokens for user * @param user address of user * @param amount number of tokens to unstake * @param data additional data * @return address of staking account * @return number of shares burned for unstake */ function unstake( address user, uint256 amount, bytes calldata data ) external virtual returns (address, uint256); /** * @notice quote the share value for an amount of tokens without unstaking * @param user address of user * @param amount number of tokens to claim with * @param data additional data * @return address of staking account * @return number of shares that the claim amount is worth */ function claim( address user, uint256 amount, bytes calldata data ) external virtual returns (address, uint256); /** * @notice method called by anyone to update accounting * @param user address of user for update * @dev will only be called ad hoc and should not contain essential logic */ function update(address user) external virtual; /** * @notice method called by owner to clean up and perform additional accounting * @dev will only be called ad hoc and should not contain any essential logic */ function clean() external virtual; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor () { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT 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 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' // solhint-disable-next-line max-line-length 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 // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT 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; // solhint-disable-next-line no-inline-assembly 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"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 10000 }, "evmVersion": "istanbul", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"gysr_","type":"address"},{"internalType":"address","name":"treasury_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousController","type":"address"},{"indexed":true,"internalType":"address","name":"newController","type":"address"}],"name":"ControlTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"previous","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"updated","type":"uint256"}],"name":"FeeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"address","name":"pool","type":"address"}],"name":"PoolCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previous","type":"address"},{"indexed":false,"internalType":"address","name":"updated","type":"address"}],"name":"TreasuryUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"factory","type":"address"},{"indexed":false,"internalType":"uint256","name":"previous","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"updated","type":"uint256"}],"name":"WhitelistUpdated","type":"event"},{"inputs":[],"name":"MAX_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"count","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"staking","type":"address"},{"internalType":"address","name":"reward","type":"address"},{"internalType":"bytes","name":"stakingdata","type":"bytes"},{"internalType":"bytes","name":"rewarddata","type":"bytes"}],"name":"create","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"fee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"list","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"map","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee_","type":"uint256"}],"name":"setFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"treasury_","type":"address"}],"name":"setTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"factory_","type":"address"},{"internalType":"uint256","name":"type_","type":"uint256"}],"name":"setWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newController","type":"address"}],"name":"transferControl","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist","outputs":[{"internalType":"enum PoolFactory.ModuleFactoryType","name":"","type":"uint8"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000c48f61a288a08f1b80c2edd74652e1276b6a168c000000000000000000000000a80481e3f9098602954b2e5cf306e6dee053ef3e
-----Decoded View---------------
Arg [0] : gysr_ (address): 0xc48F61a288A08F1B80c2edd74652e1276B6A168c
Arg [1] : treasury_ (address): 0xA80481E3f9098602954B2E5cf306e6dEE053EF3E
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000c48f61a288a08f1b80c2edd74652e1276b6a168c
Arg [1] : 000000000000000000000000a80481e3f9098602954b2e5cf306e6dee053ef3e
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.