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0x0d4c4bad79432bf5a487ed1916710ae71b72312fafebf7d6c964646efaddd079 | 0x60e06040 | 2711689 | 12 days 14 hrs ago | 0xd134a7d9485c1aac0cbf82718cf6d6e3fd130945 | IN | Create: PoolMetadata | 0 CLV | 0.0100963 |
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Contract Name:
PoolMetadata
Compiler Version
v0.8.4+commit.c7e474f2
Optimization Enabled:
Yes with 1000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol) 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 making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // 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 // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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); /** * @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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.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)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @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 // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://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 functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ 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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
/* IEvents https://github.com/FanbaseEU/Staking_Ethereum_SmartContracts 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/FanbaseEU/Staking_Ethereum_SmartContracts 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/FanbaseEU/Staking_Ethereum_SmartContracts 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 stake * @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/FanbaseEU/Staking_Ethereum_SmartContracts 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/FanbaseEU/Staking_Ethereum_SmartContracts 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/FanbaseEU/Staking_Ethereum_SmartContracts 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; }
/* OwnerController https://github.com/FanbaseEU/Staking_Ethereum_SmartContracts 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, "Only owner can perform this action"); _; } /** * @dev Modifier that throws if called by any account other than the controller. */ modifier onlyController() { require(_controller == msg.sender, "Only controller can perform this action"); _; } /** * @dev Throws if called by any account other than the owner. */ function requireOwner() internal view { require(_owner == msg.sender, "Only owner can perform this action"); } /** * @dev Throws if called by any account other than the controller. */ function requireController() internal view { require(_controller == msg.sender, "Only controller can perform this action"); } /** * @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), "New owner address can't be zero"); 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), "New controller address can't be zero"); emit ControlTransferred(_controller, newController); _controller = newController; } }
/* Pool https://github.com/FanbaseEU/Staking_Ethereum_SmartContracts 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; //anti flash loan mapping(address => uint256) public _updated; /** * @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); _updated[msg.sender] = block.timestamp; } /** * @inheritdoc IPool */ function unstake( uint256 amount, bytes calldata stakingdata, bytes calldata rewarddata ) external override nonReentrant { require(_updated[msg.sender] < block.timestamp, "Unstaking can't be done in same block with staking"); (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, "Withdraw amount must be greater than 0"); require(amount <= _gysrVested, "Insufficient amount to withdraw"); // 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 spent by user * @param vested number of tokens vested */ 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; } } }
/* PoolFactory https://github.com/FanbaseEU/Staking_Ethereum_SmartContracts 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; // time lock uint256 private constant _TIMELOCK = 2 days; uint256 public timelock; //time lock modifier notLocked() { require( timelock != 0 && timelock <= block.timestamp, "Function is timelocked" ); _; } /** * @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, "Not found in whitelist of staking module" ); require( whitelist[reward] == ModuleFactoryType.Reward, "Not found in whitelist of reward module" ); // 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); } //unlock timelock function unlockFunction() public onlyOwner { timelock = block.timestamp + _TIMELOCK; } //lock timelock function lockFunction() public onlyOwner { timelock = 0; } /** * @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 notLocked { 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 notLocked { requireController(); require(fee_ <= MAX_FEE, "Fee can't be set as exceed Max value"); 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), "Module Type Error!" ); require(factory_ != address(0), "Factory address can't be zero"); 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; } }
/* PoolMetadata https://github.com/FanbaseEU/Staking_Ethereum_SmartContracts 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 "./PoolFactory.sol"; import "./OwnerController.sol"; /** * @title PoolMetadata * * @notice this contract manages metadata definition for GYSR pools. It allows * the pool controller to set metadata for that pool, which is then emitted as * an event and indexed by the GYSR subgraph. */ contract PoolMetadata is OwnerController { using SafeERC20 for IERC20; // events event Metadata(address indexed pool, string data); event FeeUpdated(uint256 previous, uint256 updated); event TreasuryUpdated(address previous, address updated); event Banned(address indexed pool, bool banned); // fields PoolFactory private immutable _factory; PoolFactory private immutable _factoryV1; IERC20 private immutable _gysr; address public treasury; uint256 public fee; mapping(address => bool) public banned; /** * @param factory_ address for pool factory * @param factoryV1_ address for v1 pool factory * @param gysr_ address of GYSR token * @param treasury_ initial address of treasury */ constructor( address factory_, address factoryV1_, address gysr_, address treasury_ ) { _factory = PoolFactory(factory_); _factoryV1 = PoolFactory(factoryV1_); _gysr = IERC20(gysr_); treasury = treasury_; fee = 0; } /** * @notice define Pool metadata and emit associated event * @param pool address of Pool contract * @param data encoded metadata */ function metadata(address pool, string calldata data) external { // check banned require(!banned[pool], "Pool is banned"); // verify pool address and sender access OwnerController p = OwnerController(pool); if (_factory.map(pool)) { require(msg.sender == p.controller(), "Sender is not controller"); } else if (_factoryV1.map(pool)) { // v1 did not have controller role require(msg.sender == p.owner(), "Sender is not owner"); } else { revert("Pool address is invalid"); } // pay fee if (fee > 0) { _gysr.safeTransferFrom(msg.sender, treasury, fee); } // emit event emit Metadata(pool, data); } /** * @notice privileged method to clear pool metadata * @param pool address of Pool contract */ function clear(address pool) external { requireController(); emit Metadata(pool, "{}"); } /** * @notice privileged method to ban pool from submitting metadata. * This does NOT affect the ability to manage the core Pool contract. * @param pool address of pool to ban */ function ban(address pool) external { requireController(); banned[pool] = true; emit Banned(pool, true); } /** * @notice privileged method to unban pool and allow them to submit metadata * @param pool address of pool to unban */ function unban(address pool) external { requireController(); banned[pool] = false; emit Banned(pool, false); } /** * @notice update the treasury address to receive fees * @param treasury_ new value for treasury address */ function setTreasury(address treasury_) external { requireController(); emit TreasuryUpdated(treasury, treasury_); treasury = treasury_; } /** * @notice update the GYSR fee to submit Pool metadata * @param fee_ new value for fee */ function setFee(uint256 fee_) external { requireController(); emit FeeUpdated(fee, fee_); fee = fee_; } }
{ "optimizer": { "enabled": true, "runs": 1000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
[{"inputs":[{"internalType":"address","name":"factory_","type":"address"},{"internalType":"address","name":"factoryV1_","type":"address"},{"internalType":"address","name":"gysr_","type":"address"},{"internalType":"address","name":"treasury_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pool","type":"address"},{"indexed":false,"internalType":"bool","name":"banned","type":"bool"}],"name":"Banned","type":"event"},{"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":"pool","type":"address"},{"indexed":false,"internalType":"string","name":"data","type":"string"}],"name":"Metadata","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":false,"internalType":"address","name":"previous","type":"address"},{"indexed":false,"internalType":"address","name":"updated","type":"address"}],"name":"TreasuryUpdated","type":"event"},{"inputs":[{"internalType":"address","name":"pool","type":"address"}],"name":"ban","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"banned","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pool","type":"address"}],"name":"clear","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pool","type":"address"},{"internalType":"string","name":"data","type":"string"}],"name":"metadata","outputs":[],"stateMutability":"nonpayable","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":"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":"pool","type":"address"}],"name":"unban","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000010f8c3f4c1c6f85f0c8be1b3fec0429e44dbac2b00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d134a7d9485c1aac0cbf82718cf6d6e3fd130945
-----Decoded View---------------
Arg [0] : factory_ (address): 0x10f8c3f4c1c6f85f0c8be1b3fec0429e44dbac2b
Arg [1] : factoryV1_ (address): 0x0000000000000000000000000000000000000000
Arg [2] : gysr_ (address): 0x0000000000000000000000000000000000000000
Arg [3] : treasury_ (address): 0xd134a7d9485c1aac0cbf82718cf6d6e3fd130945
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000010f8c3f4c1c6f85f0c8be1b3fec0429e44dbac2b
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [3] : 000000000000000000000000d134a7d9485c1aac0cbf82718cf6d6e3fd130945
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