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Latest 25 from a total of 39,695 transactions
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Deposit | 21462475 | 3 hrs ago | IN | 0.01 ETH | 0.00133917 | ||||
Deposit | 21461355 | 6 hrs ago | IN | 0.035 ETH | 0.00074732 | ||||
Deposit | 21460244 | 10 hrs ago | IN | 0.205 ETH | 0.00118288 | ||||
Deposit | 21459900 | 11 hrs ago | IN | 0 ETH | 0.00137965 | ||||
Deposit | 21459828 | 11 hrs ago | IN | 1 ETH | 0.0010559 | ||||
Deposit | 21459657 | 12 hrs ago | IN | 0 ETH | 0.00121404 | ||||
Deposit | 21459569 | 12 hrs ago | IN | 0.53 ETH | 0.00104581 | ||||
Deposit | 21459012 | 14 hrs ago | IN | 0.12 ETH | 0.00111499 | ||||
Deposit | 21458857 | 15 hrs ago | IN | 0.01 ETH | 0.00162166 | ||||
Deposit | 21458299 | 17 hrs ago | IN | 0.005 ETH | 0.001155 | ||||
Deposit | 21458159 | 17 hrs ago | IN | 0.005 ETH | 0.00104316 | ||||
Deposit | 21456964 | 21 hrs ago | IN | 0 ETH | 0.00132286 | ||||
Deposit | 21456553 | 22 hrs ago | IN | 0 ETH | 0.00111285 | ||||
Deposit | 21456125 | 24 hrs ago | IN | 0 ETH | 0.00091331 | ||||
Deposit | 21455963 | 24 hrs ago | IN | 0.37 ETH | 0.00116731 | ||||
Deposit | 21455106 | 27 hrs ago | IN | 0.015 ETH | 0.00095793 | ||||
Deposit | 21454531 | 29 hrs ago | IN | 0 ETH | 0.00119907 | ||||
Deposit | 21454293 | 30 hrs ago | IN | 1 ETH | 0.00097547 | ||||
Deposit | 21453256 | 34 hrs ago | IN | 0.1 ETH | 0.0013451 | ||||
Deposit | 21453090 | 34 hrs ago | IN | 0 ETH | 0.00155816 | ||||
Deposit | 21452999 | 34 hrs ago | IN | 0.085 ETH | 0.00119231 | ||||
Deposit | 21452867 | 35 hrs ago | IN | 2 ETH | 0.00183754 | ||||
Deposit | 21452551 | 36 hrs ago | IN | 0 ETH | 0.00135818 | ||||
Deposit | 21452360 | 37 hrs ago | IN | 0.069 ETH | 0.00102369 | ||||
Deposit | 21452267 | 37 hrs ago | IN | 0.006 ETH | 0.00119827 |
Latest 25 internal transactions (View All)
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21462475 | 3 hrs ago | 0.01 ETH | ||||
21461355 | 6 hrs ago | 0.035 ETH | ||||
21460244 | 10 hrs ago | 0.205 ETH | ||||
21459828 | 11 hrs ago | 1 ETH | ||||
21459569 | 12 hrs ago | 0.53 ETH | ||||
21459012 | 14 hrs ago | 0.12 ETH | ||||
21458857 | 15 hrs ago | 0.01 ETH | ||||
21458299 | 17 hrs ago | 0.005 ETH | ||||
21458159 | 17 hrs ago | 0.005 ETH | ||||
21455963 | 24 hrs ago | 0.37 ETH | ||||
21455106 | 27 hrs ago | 0.015 ETH | ||||
21454293 | 30 hrs ago | 1 ETH | ||||
21453256 | 34 hrs ago | 0.1 ETH | ||||
21452999 | 34 hrs ago | 0.085 ETH | ||||
21452867 | 35 hrs ago | 2 ETH | ||||
21452360 | 37 hrs ago | 0.069 ETH | ||||
21452267 | 37 hrs ago | 0.006 ETH | ||||
21452144 | 37 hrs ago | 0.063 ETH | ||||
21451420 | 40 hrs ago | 0.063 ETH | ||||
21448502 | 2 days ago | 0.0052 ETH | ||||
21448440 | 2 days ago | 0.02301915 ETH | ||||
21447590 | 2 days ago | 6 ETH | ||||
21447269 | 2 days ago | 0.021 ETH | ||||
21446988 | 2 days ago | 0.5 ETH | ||||
21444819 | 2 days ago | 15 ETH |
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Contract Name:
TellerWithMultiAssetSupport
Compiler Version
v0.8.21+commit.d9974bed
Optimization Enabled:
Yes with 200 runs
Other Settings:
shanghai EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.21; import {ERC20} from "@solmate/tokens/ERC20.sol"; import {WETH} from "@solmate/tokens/WETH.sol"; import {BoringVault} from "src/base/BoringVault.sol"; import {AccountantWithRateProviders} from "src/base/Roles/AccountantWithRateProviders.sol"; import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol"; import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol"; import {BeforeTransferHook} from "src/interfaces/BeforeTransferHook.sol"; import {Auth, Authority} from "@solmate/auth/Auth.sol"; import {ReentrancyGuard} from "@solmate/utils/ReentrancyGuard.sol"; contract TellerWithMultiAssetSupport is Auth, BeforeTransferHook, ReentrancyGuard { using FixedPointMathLib for uint256; using SafeTransferLib for ERC20; using SafeTransferLib for WETH; // ========================================= CONSTANTS ========================================= /** * @notice Native address used to tell the contract to handle native asset deposits. */ address internal constant NATIVE = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; /** * @notice The maximum possible share lock period. */ uint256 internal constant MAX_SHARE_LOCK_PERIOD = 3 days; // ========================================= STATE ========================================= /** * @notice Mapping ERC20s to an isSupported bool. */ mapping(ERC20 => bool) public isSupported; /** * @notice The deposit nonce used to map to a deposit hash. */ uint96 public depositNonce = 1; /** * @notice After deposits, shares are locked to the msg.sender's address * for `shareLockPeriod`. * @dev During this time all trasnfers from msg.sender will revert, and * deposits are refundable. */ uint64 public shareLockPeriod; /** * @notice Used to pause calls to `deposit` and `depositWithPermit`. */ bool public isPaused; /** * @dev Maps deposit nonce to keccak256(address receiver, address depositAsset, uint256 depositAmount, uint256 shareAmount, uint256 timestamp, uint256 shareLockPeriod). */ mapping(uint256 => bytes32) public publicDepositHistory; /** * @notice Maps user address to the time their shares will be unlocked. */ mapping(address => uint256) public shareUnlockTime; /** * @notice Mapping `from` address to a bool to deny them from transferring shares. */ mapping(address => bool) public fromDenyList; /** * @notice Mapping `to` address to a bool to deny them from receiving shares. */ mapping(address => bool) public toDenyList; /** * @notice Mapping `opeartor` address to a bool to deny them from calling `transfer` or `transferFrom`. */ mapping(address => bool) public operatorDenyList; //============================== ERRORS =============================== error TellerWithMultiAssetSupport__ShareLockPeriodTooLong(); error TellerWithMultiAssetSupport__SharesAreLocked(); error TellerWithMultiAssetSupport__SharesAreUnLocked(); error TellerWithMultiAssetSupport__BadDepositHash(); error TellerWithMultiAssetSupport__AssetNotSupported(); error TellerWithMultiAssetSupport__ZeroAssets(); error TellerWithMultiAssetSupport__MinimumMintNotMet(); error TellerWithMultiAssetSupport__MinimumAssetsNotMet(); error TellerWithMultiAssetSupport__PermitFailedAndAllowanceTooLow(); error TellerWithMultiAssetSupport__ZeroShares(); error TellerWithMultiAssetSupport__DualDeposit(); error TellerWithMultiAssetSupport__Paused(); error TellerWithMultiAssetSupport__TransferDenied(address from, address to, address operator); //============================== EVENTS =============================== event Paused(); event Unpaused(); event AssetAdded(address indexed asset); event AssetRemoved(address indexed asset); event Deposit( uint256 indexed nonce, address indexed receiver, address indexed depositAsset, uint256 depositAmount, uint256 shareAmount, uint256 depositTimestamp, uint256 shareLockPeriodAtTimeOfDeposit ); event BulkDeposit(address indexed asset, uint256 depositAmount); event BulkWithdraw(address indexed asset, uint256 shareAmount); event DepositRefunded(uint256 indexed nonce, bytes32 depositHash, address indexed user); event DenyFrom(address indexed user); event DenyTo(address indexed user); event DenyOperator(address indexed user); event AllowFrom(address indexed user); event AllowTo(address indexed user); event AllowOperator(address indexed user); //============================== IMMUTABLES =============================== /** * @notice The BoringVault this contract is working with. */ BoringVault public immutable vault; /** * @notice The AccountantWithRateProviders this contract is working with. */ AccountantWithRateProviders public immutable accountant; /** * @notice One share of the BoringVault. */ uint256 internal immutable ONE_SHARE; /** * @notice The native wrapper contract. */ WETH public immutable nativeWrapper; constructor(address _owner, address _vault, address _accountant, address _weth) Auth(_owner, Authority(address(0))) { vault = BoringVault(payable(_vault)); ONE_SHARE = 10 ** vault.decimals(); accountant = AccountantWithRateProviders(_accountant); nativeWrapper = WETH(payable(_weth)); } // ========================================= ADMIN FUNCTIONS ========================================= /** * @notice Pause this contract, which prevents future calls to `deposit` and `depositWithPermit`. * @dev Callable by MULTISIG_ROLE. */ function pause() external requiresAuth { isPaused = true; emit Paused(); } /** * @notice Unpause this contract, which allows future calls to `deposit` and `depositWithPermit`. * @dev Callable by MULTISIG_ROLE. */ function unpause() external requiresAuth { isPaused = false; emit Unpaused(); } /** * @notice Adds this asset as a deposit asset. * @dev The accountant must also support pricing this asset, else the `deposit` call will revert. * @dev Callable by OWNER_ROLE. */ function addAsset(ERC20 asset) external requiresAuth { isSupported[asset] = true; emit AssetAdded(address(asset)); } /** * @notice Removes this asset as a deposit asset. * @dev Callable by OWNER_ROLE. */ function removeAsset(ERC20 asset) external requiresAuth { isSupported[asset] = false; emit AssetRemoved(address(asset)); } /** * @notice Sets the share lock period. * @dev This not only locks shares to the user address, but also serves as the pending deposit period, where deposits can be reverted. * @dev If a new shorter share lock period is set, users with pending share locks could make a new deposit to receive 1 wei shares, * and have their shares unlock sooner than their original deposit allows. This state would allow for the user deposit to be refunded, * but only if they have not transferred their shares out of there wallet. This is an accepted limitation, and should be known when decreasing * the share lock period. * @dev Callable by OWNER_ROLE. */ function setShareLockPeriod(uint64 _shareLockPeriod) external requiresAuth { if (_shareLockPeriod > MAX_SHARE_LOCK_PERIOD) revert TellerWithMultiAssetSupport__ShareLockPeriodTooLong(); shareLockPeriod = _shareLockPeriod; } /** * @notice Deny a user from transferring or receiving shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function denyAll(address user) external requiresAuth { fromDenyList[user] = true; toDenyList[user] = true; operatorDenyList[user] = true; emit DenyFrom(user); emit DenyTo(user); emit DenyOperator(user); } /** * @notice Allow a user to transfer or receive shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function allowAll(address user) external requiresAuth { fromDenyList[user] = false; toDenyList[user] = false; operatorDenyList[user] = false; emit AllowFrom(user); emit AllowTo(user); emit AllowOperator(user); } /** * @notice Deny a user from transferring shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function denyFrom(address user) external requiresAuth { fromDenyList[user] = true; emit DenyFrom(user); } /** * @notice Allow a user to transfer shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function allowFrom(address user) external requiresAuth { fromDenyList[user] = false; emit AllowFrom(user); } /** * @notice Deny a user from receiving shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function denyTo(address user) external requiresAuth { toDenyList[user] = true; emit DenyTo(user); } /** * @notice Allow a user to receive shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function allowTo(address user) external requiresAuth { toDenyList[user] = false; emit AllowTo(user); } /** * @notice Deny an operator from transferring shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function denyOperator(address user) external requiresAuth { operatorDenyList[user] = true; emit DenyOperator(user); } /** * @notice Allow an operator to transfer shares. * @dev Callable by OWNER_ROLE, and DENIER_ROLE. */ function allowOperator(address user) external requiresAuth { operatorDenyList[user] = false; emit AllowOperator(user); } // ========================================= BeforeTransferHook FUNCTIONS ========================================= /** * @notice Implement beforeTransfer hook to check if shares are locked, or if `from`, `to`, or `operator` are on the deny list. */ function beforeTransfer(address from, address to, address operator) public view virtual { if (fromDenyList[from] || toDenyList[to] || operatorDenyList[operator]) { revert TellerWithMultiAssetSupport__TransferDenied(from, to, operator); } if (shareUnlockTime[from] >= block.timestamp) revert TellerWithMultiAssetSupport__SharesAreLocked(); } // ========================================= REVERT DEPOSIT FUNCTIONS ========================================= /** * @notice Allows DEPOSIT_REFUNDER_ROLE to revert a pending deposit. * @dev Once a deposit share lock period has passed, it can no longer be reverted. * @dev It is possible the admin does not setup the BoringVault to call the transfer hook, * but this contract can still be saving share lock state. In the event this happens * deposits are still refundable if the user has not transferred their shares. * But there is no guarantee that the user has not transferred their shares. * @dev Callable by STRATEGIST_MULTISIG_ROLE. */ function refundDeposit( uint256 nonce, address receiver, address depositAsset, uint256 depositAmount, uint256 shareAmount, uint256 depositTimestamp, uint256 shareLockUpPeriodAtTimeOfDeposit ) external requiresAuth { if ((block.timestamp - depositTimestamp) > shareLockUpPeriodAtTimeOfDeposit) { // Shares are already unlocked, so we can not revert deposit. revert TellerWithMultiAssetSupport__SharesAreUnLocked(); } bytes32 depositHash = keccak256( abi.encode( receiver, depositAsset, depositAmount, shareAmount, depositTimestamp, shareLockUpPeriodAtTimeOfDeposit ) ); if (publicDepositHistory[nonce] != depositHash) revert TellerWithMultiAssetSupport__BadDepositHash(); // Delete hash to prevent refund gas. delete publicDepositHistory[nonce]; // If deposit used native asset, send user back wrapped native asset. depositAsset = depositAsset == NATIVE ? address(nativeWrapper) : depositAsset; // Burn shares and refund assets to receiver. vault.exit(receiver, ERC20(depositAsset), depositAmount, receiver, shareAmount); emit DepositRefunded(nonce, depositHash, receiver); } // ========================================= USER FUNCTIONS ========================================= /** * @notice Allows users to deposit into the BoringVault, if this contract is not paused. * @dev Publicly callable. */ function deposit(ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint) external payable requiresAuth nonReentrant returns (uint256 shares) { if (isPaused) revert TellerWithMultiAssetSupport__Paused(); if (!isSupported[depositAsset]) revert TellerWithMultiAssetSupport__AssetNotSupported(); if (address(depositAsset) == NATIVE) { if (msg.value == 0) revert TellerWithMultiAssetSupport__ZeroAssets(); nativeWrapper.deposit{value: msg.value}(); depositAmount = msg.value; shares = depositAmount.mulDivDown(ONE_SHARE, accountant.getRateInQuoteSafe(nativeWrapper)); if (shares < minimumMint) revert TellerWithMultiAssetSupport__MinimumMintNotMet(); // `from` is address(this) since user already sent value. nativeWrapper.safeApprove(address(vault), depositAmount); vault.enter(address(this), nativeWrapper, depositAmount, msg.sender, shares); } else { if (msg.value > 0) revert TellerWithMultiAssetSupport__DualDeposit(); shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender); } _afterPublicDeposit(msg.sender, depositAsset, depositAmount, shares, shareLockPeriod); } /** * @notice Allows users to deposit into BoringVault using permit. * @dev Publicly callable. */ function depositWithPermit( ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external requiresAuth nonReentrant returns (uint256 shares) { if (isPaused) revert TellerWithMultiAssetSupport__Paused(); if (!isSupported[depositAsset]) revert TellerWithMultiAssetSupport__AssetNotSupported(); try depositAsset.permit(msg.sender, address(vault), depositAmount, deadline, v, r, s) {} catch { if (depositAsset.allowance(msg.sender, address(vault)) < depositAmount) { revert TellerWithMultiAssetSupport__PermitFailedAndAllowanceTooLow(); } } shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender); _afterPublicDeposit(msg.sender, depositAsset, depositAmount, shares, shareLockPeriod); } /** * @notice Allows on ramp role to deposit into this contract. * @dev Does NOT support native deposits. * @dev Callable by SOLVER_ROLE. */ function bulkDeposit(ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint, address to) external requiresAuth nonReentrant returns (uint256 shares) { if (!isSupported[depositAsset]) revert TellerWithMultiAssetSupport__AssetNotSupported(); shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, to); emit BulkDeposit(address(depositAsset), depositAmount); } /** * @notice Allows off ramp role to withdraw from this contract. * @dev Callable by SOLVER_ROLE. */ function bulkWithdraw(ERC20 withdrawAsset, uint256 shareAmount, uint256 minimumAssets, address to) external requiresAuth returns (uint256 assetsOut) { if (!isSupported[withdrawAsset]) revert TellerWithMultiAssetSupport__AssetNotSupported(); if (shareAmount == 0) revert TellerWithMultiAssetSupport__ZeroShares(); assetsOut = shareAmount.mulDivDown(accountant.getRateInQuoteSafe(withdrawAsset), ONE_SHARE); if (assetsOut < minimumAssets) revert TellerWithMultiAssetSupport__MinimumAssetsNotMet(); vault.exit(to, withdrawAsset, assetsOut, msg.sender, shareAmount); emit BulkWithdraw(address(withdrawAsset), shareAmount); } // ========================================= INTERNAL HELPER FUNCTIONS ========================================= /** * @notice Implements a common ERC20 deposit into BoringVault. */ function _erc20Deposit(ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint, address to) internal returns (uint256 shares) { if (depositAmount == 0) revert TellerWithMultiAssetSupport__ZeroAssets(); shares = depositAmount.mulDivDown(ONE_SHARE, accountant.getRateInQuoteSafe(depositAsset)); if (shares < minimumMint) revert TellerWithMultiAssetSupport__MinimumMintNotMet(); vault.enter(msg.sender, depositAsset, depositAmount, to, shares); } /** * @notice Handle share lock logic, and event. */ function _afterPublicDeposit( address user, ERC20 depositAsset, uint256 depositAmount, uint256 shares, uint256 currentShareLockPeriod ) internal { shareUnlockTime[user] = block.timestamp + currentShareLockPeriod; uint256 nonce = depositNonce; publicDepositHistory[nonce] = keccak256(abi.encode(user, depositAsset, depositAmount, shares, block.timestamp, currentShareLockPeriod)); depositNonce++; emit Deposit(nonce, user, address(depositAsset), depositAmount, shares, block.timestamp, currentShareLockPeriod); } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Modern and gas efficient ERC20 + EIP-2612 implementation. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol) /// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol) /// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it. abstract contract ERC20 { /*////////////////////////////////////////////////////////////// EVENTS //////////////////////////////////////////////////////////////*/ event Transfer(address indexed from, address indexed to, uint256 amount); event Approval(address indexed owner, address indexed spender, uint256 amount); /*////////////////////////////////////////////////////////////// METADATA STORAGE //////////////////////////////////////////////////////////////*/ string public name; string public symbol; uint8 public immutable decimals; /*////////////////////////////////////////////////////////////// ERC20 STORAGE //////////////////////////////////////////////////////////////*/ uint256 public totalSupply; mapping(address => uint256) public balanceOf; mapping(address => mapping(address => uint256)) public allowance; /*////////////////////////////////////////////////////////////// EIP-2612 STORAGE //////////////////////////////////////////////////////////////*/ uint256 internal immutable INITIAL_CHAIN_ID; bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR; mapping(address => uint256) public nonces; /*////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////*/ constructor( string memory _name, string memory _symbol, uint8 _decimals ) { name = _name; symbol = _symbol; decimals = _decimals; INITIAL_CHAIN_ID = block.chainid; INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator(); } /*////////////////////////////////////////////////////////////// ERC20 LOGIC //////////////////////////////////////////////////////////////*/ function approve(address spender, uint256 amount) public virtual returns (bool) { allowance[msg.sender][spender] = amount; emit Approval(msg.sender, spender, amount); return true; } function transfer(address to, uint256 amount) public virtual returns (bool) { balanceOf[msg.sender] -= amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(msg.sender, to, amount); return true; } function transferFrom( address from, address to, uint256 amount ) public virtual returns (bool) { uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals. if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount; balanceOf[from] -= amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(from, to, amount); return true; } /*////////////////////////////////////////////////////////////// EIP-2612 LOGIC //////////////////////////////////////////////////////////////*/ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual { require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED"); // Unchecked because the only math done is incrementing // the owner's nonce which cannot realistically overflow. unchecked { address recoveredAddress = ecrecover( keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR(), keccak256( abi.encode( keccak256( "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)" ), owner, spender, value, nonces[owner]++, deadline ) ) ) ), v, r, s ); require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER"); allowance[recoveredAddress][spender] = value; } emit Approval(owner, spender, value); } function DOMAIN_SEPARATOR() public view virtual returns (bytes32) { return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator(); } function computeDomainSeparator() internal view virtual returns (bytes32) { return keccak256( abi.encode( keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"), keccak256(bytes(name)), keccak256("1"), block.chainid, address(this) ) ); } /*////////////////////////////////////////////////////////////// INTERNAL MINT/BURN LOGIC //////////////////////////////////////////////////////////////*/ function _mint(address to, uint256 amount) internal virtual { totalSupply += amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(address(0), to, amount); } function _burn(address from, uint256 amount) internal virtual { balanceOf[from] -= amount; // Cannot underflow because a user's balance // will never be larger than the total supply. unchecked { totalSupply -= amount; } emit Transfer(from, address(0), amount); } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; import {ERC20} from "./ERC20.sol"; import {SafeTransferLib} from "../utils/SafeTransferLib.sol"; /// @notice Minimalist and modern Wrapped Ether implementation. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/WETH.sol) /// @author Inspired by WETH9 (https://github.com/dapphub/ds-weth/blob/master/src/weth9.sol) contract WETH is ERC20("Wrapped Ether", "WETH", 18) { using SafeTransferLib for address; event Deposit(address indexed from, uint256 amount); event Withdrawal(address indexed to, uint256 amount); function deposit() public payable virtual { _mint(msg.sender, msg.value); emit Deposit(msg.sender, msg.value); } function withdraw(uint256 amount) public virtual { _burn(msg.sender, amount); emit Withdrawal(msg.sender, amount); msg.sender.safeTransferETH(amount); } receive() external payable virtual { deposit(); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.21; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import {ERC721Holder} from "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; import {ERC1155Holder} from "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol"; import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol"; import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol"; import {ERC20} from "@solmate/tokens/ERC20.sol"; import {BeforeTransferHook} from "src/interfaces/BeforeTransferHook.sol"; import {Auth, Authority} from "@solmate/auth/Auth.sol"; contract BoringVault is ERC20, Auth, ERC721Holder, ERC1155Holder { using Address for address; using SafeTransferLib for ERC20; using FixedPointMathLib for uint256; // ========================================= STATE ========================================= /** * @notice Contract responsbile for implementing `beforeTransfer`. */ BeforeTransferHook public hook; //============================== EVENTS =============================== event Enter(address indexed from, address indexed asset, uint256 amount, address indexed to, uint256 shares); event Exit(address indexed to, address indexed asset, uint256 amount, address indexed from, uint256 shares); //============================== CONSTRUCTOR =============================== constructor(address _owner, string memory _name, string memory _symbol, uint8 _decimals) ERC20(_name, _symbol, _decimals) Auth(_owner, Authority(address(0))) {} //============================== MANAGE =============================== /** * @notice Allows manager to make an arbitrary function call from this contract. * @dev Callable by MANAGER_ROLE. */ function manage(address target, bytes calldata data, uint256 value) external requiresAuth returns (bytes memory result) { result = target.functionCallWithValue(data, value); } /** * @notice Allows manager to make arbitrary function calls from this contract. * @dev Callable by MANAGER_ROLE. */ function manage(address[] calldata targets, bytes[] calldata data, uint256[] calldata values) external requiresAuth returns (bytes[] memory results) { uint256 targetsLength = targets.length; results = new bytes[](targetsLength); for (uint256 i; i < targetsLength; ++i) { results[i] = targets[i].functionCallWithValue(data[i], values[i]); } } //============================== ENTER =============================== /** * @notice Allows minter to mint shares, in exchange for assets. * @dev If assetAmount is zero, no assets are transferred in. * @dev Callable by MINTER_ROLE. */ function enter(address from, ERC20 asset, uint256 assetAmount, address to, uint256 shareAmount) external requiresAuth { // Transfer assets in if (assetAmount > 0) asset.safeTransferFrom(from, address(this), assetAmount); // Mint shares. _mint(to, shareAmount); emit Enter(from, address(asset), assetAmount, to, shareAmount); } //============================== EXIT =============================== /** * @notice Allows burner to burn shares, in exchange for assets. * @dev If assetAmount is zero, no assets are transferred out. * @dev Callable by BURNER_ROLE. */ function exit(address to, ERC20 asset, uint256 assetAmount, address from, uint256 shareAmount) external requiresAuth { // Burn shares. _burn(from, shareAmount); // Transfer assets out. if (assetAmount > 0) asset.safeTransfer(to, assetAmount); emit Exit(to, address(asset), assetAmount, from, shareAmount); } //============================== BEFORE TRANSFER HOOK =============================== /** * @notice Sets the share locker. * @notice If set to zero address, the share locker logic is disabled. * @dev Callable by OWNER_ROLE. */ function setBeforeTransferHook(address _hook) external requiresAuth { hook = BeforeTransferHook(_hook); } /** * @notice Call `beforeTransferHook` passing in `from` `to`, and `msg.sender`. */ function _callBeforeTransfer(address from, address to) internal view { if (address(hook) != address(0)) hook.beforeTransfer(from, to, msg.sender); } function transfer(address to, uint256 amount) public override returns (bool) { _callBeforeTransfer(msg.sender, to); return super.transfer(to, amount); } function transferFrom(address from, address to, uint256 amount) public override returns (bool) { _callBeforeTransfer(from, to); return super.transferFrom(from, to, amount); } //============================== RECEIVE =============================== receive() external payable {} }
// SPDX-License-Identifier: MIT pragma solidity 0.8.21; import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol"; import {IRateProvider} from "src/interfaces/IRateProvider.sol"; import {ERC20} from "@solmate/tokens/ERC20.sol"; import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol"; import {BoringVault} from "src/base/BoringVault.sol"; import {Auth, Authority} from "@solmate/auth/Auth.sol"; contract AccountantWithRateProviders is Auth, IRateProvider { using FixedPointMathLib for uint256; using SafeTransferLib for ERC20; // ========================================= STRUCTS ========================================= /** * @param payoutAddress the address `claimFees` sends fees to * @param highwaterMark the highest value of the BoringVault's share price * @param feesOwedInBase total pending fees owed in terms of base * @param totalSharesLastUpdate total amount of shares the last exchange rate update * @param exchangeRate the current exchange rate in terms of base * @param allowedExchangeRateChangeUpper the max allowed change to exchange rate from an update * @param allowedExchangeRateChangeLower the min allowed change to exchange rate from an update * @param lastUpdateTimestamp the block timestamp of the last exchange rate update * @param isPaused whether or not this contract is paused * @param minimumUpdateDelayInSeconds the minimum amount of time that must pass between * exchange rate updates, such that the update won't trigger the contract to be paused * @param managementFee the management fee * @param performanceFee the performance fee */ struct AccountantState { address payoutAddress; uint96 highwaterMark; uint128 feesOwedInBase; uint128 totalSharesLastUpdate; uint96 exchangeRate; uint16 allowedExchangeRateChangeUpper; uint16 allowedExchangeRateChangeLower; uint64 lastUpdateTimestamp; bool isPaused; uint24 minimumUpdateDelayInSeconds; uint16 managementFee; uint16 performanceFee; } /** * @param isPeggedToBase whether or not the asset is 1:1 with the base asset * @param rateProvider the rate provider for this asset if `isPeggedToBase` is false */ struct RateProviderData { bool isPeggedToBase; IRateProvider rateProvider; } // ========================================= STATE ========================================= /** * @notice Store the accountant state in 3 packed slots. */ AccountantState public accountantState; /** * @notice Maps ERC20s to their RateProviderData. */ mapping(ERC20 => RateProviderData) public rateProviderData; //============================== ERRORS =============================== error AccountantWithRateProviders__UpperBoundTooSmall(); error AccountantWithRateProviders__LowerBoundTooLarge(); error AccountantWithRateProviders__ManagementFeeTooLarge(); error AccountantWithRateProviders__PerformanceFeeTooLarge(); error AccountantWithRateProviders__Paused(); error AccountantWithRateProviders__ZeroFeesOwed(); error AccountantWithRateProviders__OnlyCallableByBoringVault(); error AccountantWithRateProviders__UpdateDelayTooLarge(); error AccountantWithRateProviders__ExchangeRateAboveHighwaterMark(); //============================== EVENTS =============================== event Paused(); event Unpaused(); event DelayInSecondsUpdated(uint24 oldDelay, uint24 newDelay); event UpperBoundUpdated(uint16 oldBound, uint16 newBound); event LowerBoundUpdated(uint16 oldBound, uint16 newBound); event ManagementFeeUpdated(uint16 oldFee, uint16 newFee); event PerformanceFeeUpdated(uint16 oldFee, uint16 newFee); event PayoutAddressUpdated(address oldPayout, address newPayout); event RateProviderUpdated(address asset, bool isPegged, address rateProvider); event ExchangeRateUpdated(uint96 oldRate, uint96 newRate, uint64 currentTime); event FeesClaimed(address indexed feeAsset, uint256 amount); event HighwaterMarkReset(); //============================== IMMUTABLES =============================== /** * @notice The base asset rates are provided in. */ ERC20 public immutable base; /** * @notice The decimals rates are provided in. */ uint8 public immutable decimals; /** * @notice The BoringVault this accountant is working with. * Used to determine share supply for fee calculation. */ BoringVault public immutable vault; /** * @notice One share of the BoringVault. */ uint256 internal immutable ONE_SHARE; constructor( address _owner, address _vault, address payoutAddress, uint96 startingExchangeRate, address _base, uint16 allowedExchangeRateChangeUpper, uint16 allowedExchangeRateChangeLower, uint24 minimumUpdateDelayInSeconds, uint16 managementFee, uint16 performanceFee ) Auth(_owner, Authority(address(0))) { base = ERC20(_base); decimals = ERC20(_base).decimals(); vault = BoringVault(payable(_vault)); ONE_SHARE = 10 ** vault.decimals(); accountantState = AccountantState({ payoutAddress: payoutAddress, highwaterMark: startingExchangeRate, feesOwedInBase: 0, totalSharesLastUpdate: uint128(vault.totalSupply()), exchangeRate: startingExchangeRate, allowedExchangeRateChangeUpper: allowedExchangeRateChangeUpper, allowedExchangeRateChangeLower: allowedExchangeRateChangeLower, lastUpdateTimestamp: uint64(block.timestamp), isPaused: false, minimumUpdateDelayInSeconds: minimumUpdateDelayInSeconds, managementFee: managementFee, performanceFee: performanceFee }); } // ========================================= ADMIN FUNCTIONS ========================================= /** * @notice Pause this contract, which prevents future calls to `updateExchangeRate`, and any safe rate * calls will revert. * @dev Callable by MULTISIG_ROLE. */ function pause() external requiresAuth { accountantState.isPaused = true; emit Paused(); } /** * @notice Unpause this contract, which allows future calls to `updateExchangeRate`, and any safe rate * calls will stop reverting. * @dev Callable by MULTISIG_ROLE. */ function unpause() external requiresAuth { accountantState.isPaused = false; emit Unpaused(); } /** * @notice Update the minimum time delay between `updateExchangeRate` calls. * @dev There are no input requirements, as it is possible the admin would want * the exchange rate updated as frequently as needed. * @dev Callable by OWNER_ROLE. */ function updateDelay(uint24 minimumUpdateDelayInSeconds) external requiresAuth { if (minimumUpdateDelayInSeconds > 14 days) revert AccountantWithRateProviders__UpdateDelayTooLarge(); uint24 oldDelay = accountantState.minimumUpdateDelayInSeconds; accountantState.minimumUpdateDelayInSeconds = minimumUpdateDelayInSeconds; emit DelayInSecondsUpdated(oldDelay, minimumUpdateDelayInSeconds); } /** * @notice Update the allowed upper bound change of exchange rate between `updateExchangeRateCalls`. * @dev Callable by OWNER_ROLE. */ function updateUpper(uint16 allowedExchangeRateChangeUpper) external requiresAuth { if (allowedExchangeRateChangeUpper < 1e4) revert AccountantWithRateProviders__UpperBoundTooSmall(); uint16 oldBound = accountantState.allowedExchangeRateChangeUpper; accountantState.allowedExchangeRateChangeUpper = allowedExchangeRateChangeUpper; emit UpperBoundUpdated(oldBound, allowedExchangeRateChangeUpper); } /** * @notice Update the allowed lower bound change of exchange rate between `updateExchangeRateCalls`. * @dev Callable by OWNER_ROLE. */ function updateLower(uint16 allowedExchangeRateChangeLower) external requiresAuth { if (allowedExchangeRateChangeLower > 1e4) revert AccountantWithRateProviders__LowerBoundTooLarge(); uint16 oldBound = accountantState.allowedExchangeRateChangeLower; accountantState.allowedExchangeRateChangeLower = allowedExchangeRateChangeLower; emit LowerBoundUpdated(oldBound, allowedExchangeRateChangeLower); } /** * @notice Update the management fee to a new value. * @dev Callable by OWNER_ROLE. */ function updateManagementFee(uint16 managementFee) external requiresAuth { if (managementFee > 0.2e4) revert AccountantWithRateProviders__ManagementFeeTooLarge(); uint16 oldFee = accountantState.managementFee; accountantState.managementFee = managementFee; emit ManagementFeeUpdated(oldFee, managementFee); } /** * @notice Update the performance fee to a new value. * @dev Callable by OWNER_ROLE. */ function updatePerformanceFee(uint16 performanceFee) external requiresAuth { if (performanceFee > 0.5e4) revert AccountantWithRateProviders__PerformanceFeeTooLarge(); uint16 oldFee = accountantState.performanceFee; accountantState.performanceFee = performanceFee; emit PerformanceFeeUpdated(oldFee, performanceFee); } /** * @notice Update the payout address fees are sent to. * @dev Callable by OWNER_ROLE. */ function updatePayoutAddress(address payoutAddress) external requiresAuth { address oldPayout = accountantState.payoutAddress; accountantState.payoutAddress = payoutAddress; emit PayoutAddressUpdated(oldPayout, payoutAddress); } /** * @notice Update the rate provider data for a specific `asset`. * @dev Rate providers must return rates in terms of `base` or * an asset pegged to base and they must use the same decimals * as `asset`. * @dev Callable by OWNER_ROLE. */ function setRateProviderData(ERC20 asset, bool isPeggedToBase, address rateProvider) external requiresAuth { rateProviderData[asset] = RateProviderData({isPeggedToBase: isPeggedToBase, rateProvider: IRateProvider(rateProvider)}); emit RateProviderUpdated(address(asset), isPeggedToBase, rateProvider); } /** * @notice Reset the highwater mark to the current exchange rate. * @dev Callable by OWNER_ROLE. */ function resetHighwaterMark() external requiresAuth { AccountantState storage state = accountantState; if (state.exchangeRate > state.highwaterMark) { revert AccountantWithRateProviders__ExchangeRateAboveHighwaterMark(); } uint64 currentTime = uint64(block.timestamp); uint256 currentTotalShares = vault.totalSupply(); _calculateFeesOwed(state, state.exchangeRate, state.exchangeRate, currentTotalShares, currentTime); state.totalSharesLastUpdate = uint128(currentTotalShares); state.highwaterMark = accountantState.exchangeRate; state.lastUpdateTimestamp = currentTime; emit HighwaterMarkReset(); } // ========================================= UPDATE EXCHANGE RATE/FEES FUNCTIONS ========================================= /** * @notice Updates this contract exchangeRate. * @dev If new exchange rate is outside of accepted bounds, or if not enough time has passed, this * will pause the contract, and this function will NOT calculate fees owed. * @dev Callable by UPDATE_EXCHANGE_RATE_ROLE. */ function updateExchangeRate(uint96 newExchangeRate) external requiresAuth { AccountantState storage state = accountantState; if (state.isPaused) revert AccountantWithRateProviders__Paused(); uint64 currentTime = uint64(block.timestamp); uint256 currentExchangeRate = state.exchangeRate; uint256 currentTotalShares = vault.totalSupply(); if ( currentTime < state.lastUpdateTimestamp + state.minimumUpdateDelayInSeconds || newExchangeRate > currentExchangeRate.mulDivDown(state.allowedExchangeRateChangeUpper, 1e4) || newExchangeRate < currentExchangeRate.mulDivDown(state.allowedExchangeRateChangeLower, 1e4) ) { // Instead of reverting, pause the contract. This way the exchange rate updater is able to update the exchange rate // to a better value, and pause it. state.isPaused = true; } else { _calculateFeesOwed(state, newExchangeRate, currentExchangeRate, currentTotalShares, currentTime); } state.exchangeRate = newExchangeRate; state.totalSharesLastUpdate = uint128(currentTotalShares); state.lastUpdateTimestamp = currentTime; emit ExchangeRateUpdated(uint96(currentExchangeRate), newExchangeRate, currentTime); } /** * @notice Claim pending fees. * @dev This function must be called by the BoringVault. * @dev This function will lose precision if the exchange rate * decimals is greater than the feeAsset's decimals. */ function claimFees(ERC20 feeAsset) external { if (msg.sender != address(vault)) revert AccountantWithRateProviders__OnlyCallableByBoringVault(); AccountantState storage state = accountantState; if (state.isPaused) revert AccountantWithRateProviders__Paused(); if (state.feesOwedInBase == 0) revert AccountantWithRateProviders__ZeroFeesOwed(); // Determine amount of fees owed in feeAsset. uint256 feesOwedInFeeAsset; RateProviderData memory data = rateProviderData[feeAsset]; if (address(feeAsset) == address(base)) { feesOwedInFeeAsset = state.feesOwedInBase; } else { uint8 feeAssetDecimals = ERC20(feeAsset).decimals(); uint256 feesOwedInBaseUsingFeeAssetDecimals = changeDecimals(state.feesOwedInBase, decimals, feeAssetDecimals); if (data.isPeggedToBase) { feesOwedInFeeAsset = feesOwedInBaseUsingFeeAssetDecimals; } else { uint256 rate = data.rateProvider.getRate(); feesOwedInFeeAsset = feesOwedInBaseUsingFeeAssetDecimals.mulDivDown(10 ** feeAssetDecimals, rate); } } // Zero out fees owed. state.feesOwedInBase = 0; // Transfer fee asset to payout address. feeAsset.safeTransferFrom(msg.sender, state.payoutAddress, feesOwedInFeeAsset); emit FeesClaimed(address(feeAsset), feesOwedInFeeAsset); } // ========================================= RATE FUNCTIONS ========================================= /** * @notice Get this BoringVault's current rate in the base. */ function getRate() public view returns (uint256 rate) { rate = accountantState.exchangeRate; } /** * @notice Get this BoringVault's current rate in the base. * @dev Revert if paused. */ function getRateSafe() external view returns (uint256 rate) { if (accountantState.isPaused) revert AccountantWithRateProviders__Paused(); rate = getRate(); } /** * @notice Get this BoringVault's current rate in the provided quote. * @dev `quote` must have its RateProviderData set, else this will revert. * @dev This function will lose precision if the exchange rate * decimals is greater than the quote's decimals. */ function getRateInQuote(ERC20 quote) public view returns (uint256 rateInQuote) { if (address(quote) == address(base)) { rateInQuote = accountantState.exchangeRate; } else { RateProviderData memory data = rateProviderData[quote]; uint8 quoteDecimals = ERC20(quote).decimals(); uint256 exchangeRateInQuoteDecimals = changeDecimals(accountantState.exchangeRate, decimals, quoteDecimals); if (data.isPeggedToBase) { rateInQuote = exchangeRateInQuoteDecimals; } else { uint256 quoteRate = data.rateProvider.getRate(); uint256 oneQuote = 10 ** quoteDecimals; rateInQuote = oneQuote.mulDivDown(exchangeRateInQuoteDecimals, quoteRate); } } } /** * @notice Get this BoringVault's current rate in the provided quote. * @dev `quote` must have its RateProviderData set, else this will revert. * @dev Revert if paused. */ function getRateInQuoteSafe(ERC20 quote) external view returns (uint256 rateInQuote) { if (accountantState.isPaused) revert AccountantWithRateProviders__Paused(); rateInQuote = getRateInQuote(quote); } // ========================================= INTERNAL HELPER FUNCTIONS ========================================= /** * @notice Used to change the decimals of precision used for an amount. */ function changeDecimals(uint256 amount, uint8 fromDecimals, uint8 toDecimals) internal pure returns (uint256) { if (fromDecimals == toDecimals) { return amount; } else if (fromDecimals < toDecimals) { return amount * 10 ** (toDecimals - fromDecimals); } else { return amount / 10 ** (fromDecimals - toDecimals); } } /** * @notice Calculate fees owed in base. * @dev This function will update the highwater mark if the new exchange rate is higher. */ function _calculateFeesOwed( AccountantState storage state, uint96 newExchangeRate, uint256 currentExchangeRate, uint256 currentTotalShares, uint64 currentTime ) internal { // Only update fees if we are not paused. // Update fee accounting. uint256 shareSupplyToUse = currentTotalShares; // Use the minimum between current total supply and total supply for last update. if (state.totalSharesLastUpdate < shareSupplyToUse) { shareSupplyToUse = state.totalSharesLastUpdate; } // Determine management fees owned. uint256 timeDelta = currentTime - state.lastUpdateTimestamp; uint256 minimumAssets = newExchangeRate > currentExchangeRate ? shareSupplyToUse.mulDivDown(currentExchangeRate, ONE_SHARE) : shareSupplyToUse.mulDivDown(newExchangeRate, ONE_SHARE); uint256 managementFeesAnnual = minimumAssets.mulDivDown(state.managementFee, 1e4); uint256 newFeesOwedInBase = managementFeesAnnual.mulDivDown(timeDelta, 365 days); // Account for performance fees. if (newExchangeRate > state.highwaterMark) { if (state.performanceFee > 0) { uint256 changeInExchangeRate = newExchangeRate - state.highwaterMark; uint256 yieldEarned = changeInExchangeRate.mulDivDown(shareSupplyToUse, ONE_SHARE); uint256 performanceFeesOwedInBase = yieldEarned.mulDivDown(state.performanceFee, 1e4); newFeesOwedInBase += performanceFeesOwedInBase; } // Always update the highwater mark if the new exchange rate is higher. // This way if we are not iniitiall taking performance fees, we can start taking them // without back charging them on past performance. state.highwaterMark = newExchangeRate; } state.feesOwedInBase += uint128(newFeesOwedInBase); } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Arithmetic library with operations for fixed-point numbers. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/FixedPointMathLib.sol) /// @author Inspired by USM (https://github.com/usmfum/USM/blob/master/contracts/WadMath.sol) library FixedPointMathLib { /*////////////////////////////////////////////////////////////// SIMPLIFIED FIXED POINT OPERATIONS //////////////////////////////////////////////////////////////*/ uint256 internal constant MAX_UINT256 = 2**256 - 1; uint256 internal constant WAD = 1e18; // The scalar of ETH and most ERC20s. function mulWadDown(uint256 x, uint256 y) internal pure returns (uint256) { return mulDivDown(x, y, WAD); // Equivalent to (x * y) / WAD rounded down. } function mulWadUp(uint256 x, uint256 y) internal pure returns (uint256) { return mulDivUp(x, y, WAD); // Equivalent to (x * y) / WAD rounded up. } function divWadDown(uint256 x, uint256 y) internal pure returns (uint256) { return mulDivDown(x, WAD, y); // Equivalent to (x * WAD) / y rounded down. } function divWadUp(uint256 x, uint256 y) internal pure returns (uint256) { return mulDivUp(x, WAD, y); // Equivalent to (x * WAD) / y rounded up. } /*////////////////////////////////////////////////////////////// LOW LEVEL FIXED POINT OPERATIONS //////////////////////////////////////////////////////////////*/ function mulDivDown( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y)) if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) { revert(0, 0) } // Divide x * y by the denominator. z := div(mul(x, y), denominator) } } function mulDivUp( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y)) if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) { revert(0, 0) } // If x * y modulo the denominator is strictly greater than 0, // 1 is added to round up the division of x * y by the denominator. z := add(gt(mod(mul(x, y), denominator), 0), div(mul(x, y), denominator)) } } function rpow( uint256 x, uint256 n, uint256 scalar ) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { switch x case 0 { switch n case 0 { // 0 ** 0 = 1 z := scalar } default { // 0 ** n = 0 z := 0 } } default { switch mod(n, 2) case 0 { // If n is even, store scalar in z for now. z := scalar } default { // If n is odd, store x in z for now. z := x } // Shifting right by 1 is like dividing by 2. let half := shr(1, scalar) for { // Shift n right by 1 before looping to halve it. n := shr(1, n) } n { // Shift n right by 1 each iteration to halve it. n := shr(1, n) } { // Revert immediately if x ** 2 would overflow. // Equivalent to iszero(eq(div(xx, x), x)) here. if shr(128, x) { revert(0, 0) } // Store x squared. let xx := mul(x, x) // Round to the nearest number. let xxRound := add(xx, half) // Revert if xx + half overflowed. if lt(xxRound, xx) { revert(0, 0) } // Set x to scaled xxRound. x := div(xxRound, scalar) // If n is even: if mod(n, 2) { // Compute z * x. let zx := mul(z, x) // If z * x overflowed: if iszero(eq(div(zx, x), z)) { // Revert if x is non-zero. if iszero(iszero(x)) { revert(0, 0) } } // Round to the nearest number. let zxRound := add(zx, half) // Revert if zx + half overflowed. if lt(zxRound, zx) { revert(0, 0) } // Return properly scaled zxRound. z := div(zxRound, scalar) } } } } } /*////////////////////////////////////////////////////////////// GENERAL NUMBER UTILITIES //////////////////////////////////////////////////////////////*/ function sqrt(uint256 x) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { let y := x // We start y at x, which will help us make our initial estimate. z := 181 // The "correct" value is 1, but this saves a multiplication later. // This segment is to get a reasonable initial estimate for the Babylonian method. With a bad // start, the correct # of bits increases ~linearly each iteration instead of ~quadratically. // We check y >= 2^(k + 8) but shift right by k bits // each branch to ensure that if x >= 256, then y >= 256. if iszero(lt(y, 0x10000000000000000000000000000000000)) { y := shr(128, y) z := shl(64, z) } if iszero(lt(y, 0x1000000000000000000)) { y := shr(64, y) z := shl(32, z) } if iszero(lt(y, 0x10000000000)) { y := shr(32, y) z := shl(16, z) } if iszero(lt(y, 0x1000000)) { y := shr(16, y) z := shl(8, z) } // Goal was to get z*z*y within a small factor of x. More iterations could // get y in a tighter range. Currently, we will have y in [256, 256*2^16). // We ensured y >= 256 so that the relative difference between y and y+1 is small. // That's not possible if x < 256 but we can just verify those cases exhaustively. // Now, z*z*y <= x < z*z*(y+1), and y <= 2^(16+8), and either y >= 256, or x < 256. // Correctness can be checked exhaustively for x < 256, so we assume y >= 256. // Then z*sqrt(y) is within sqrt(257)/sqrt(256) of sqrt(x), or about 20bps. // For s in the range [1/256, 256], the estimate f(s) = (181/1024) * (s+1) is in the range // (1/2.84 * sqrt(s), 2.84 * sqrt(s)), with largest error when s = 1 and when s = 256 or 1/256. // Since y is in [256, 256*2^16), let a = y/65536, so that a is in [1/256, 256). Then we can estimate // sqrt(y) using sqrt(65536) * 181/1024 * (a + 1) = 181/4 * (y + 65536)/65536 = 181 * (y + 65536)/2^18. // There is no overflow risk here since y < 2^136 after the first branch above. z := shr(18, mul(z, add(y, 65536))) // A mul() is saved from starting z at 181. // Given the worst case multiplicative error of 2.84 above, 7 iterations should be enough. z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) z := shr(1, add(z, div(x, z))) // If x+1 is a perfect square, the Babylonian method cycles between // floor(sqrt(x)) and ceil(sqrt(x)). This statement ensures we return floor. // See: https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division // Since the ceil is rare, we save gas on the assignment and repeat division in the rare case. // If you don't care whether the floor or ceil square root is returned, you can remove this statement. z := sub(z, lt(div(x, z), z)) } } function unsafeMod(uint256 x, uint256 y) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { // Mod x by y. Note this will return // 0 instead of reverting if y is zero. z := mod(x, y) } } function unsafeDiv(uint256 x, uint256 y) internal pure returns (uint256 r) { /// @solidity memory-safe-assembly assembly { // Divide x by y. Note this will return // 0 instead of reverting if y is zero. r := div(x, y) } } function unsafeDivUp(uint256 x, uint256 y) internal pure returns (uint256 z) { /// @solidity memory-safe-assembly assembly { // Add 1 to x * y if x % y > 0. Note this will // return 0 instead of reverting if y is zero. z := add(gt(mod(x, y), 0), div(x, y)) } } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; import {ERC20} from "../tokens/ERC20.sol"; /// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol) /// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer. /// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller. library SafeTransferLib { /*////////////////////////////////////////////////////////////// ETH OPERATIONS //////////////////////////////////////////////////////////////*/ function safeTransferETH(address to, uint256 amount) internal { bool success; /// @solidity memory-safe-assembly assembly { // Transfer the ETH and store if it succeeded or not. success := call(gas(), to, amount, 0, 0, 0, 0) } require(success, "ETH_TRANSFER_FAILED"); } /*////////////////////////////////////////////////////////////// ERC20 OPERATIONS //////////////////////////////////////////////////////////////*/ function safeTransferFrom( ERC20 token, address from, address to, uint256 amount ) internal { bool success; /// @solidity memory-safe-assembly assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "from" argument. mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument. mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 100, 0, 32) ) } require(success, "TRANSFER_FROM_FAILED"); } function safeTransfer( ERC20 token, address to, uint256 amount ) internal { bool success; /// @solidity memory-safe-assembly assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument. mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 68, 0, 32) ) } require(success, "TRANSFER_FAILED"); } function safeApprove( ERC20 token, address to, uint256 amount ) internal { bool success; /// @solidity memory-safe-assembly assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument. mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 68, 0, 32) ) } require(success, "APPROVE_FAILED"); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.21; interface BeforeTransferHook { function beforeTransfer(address from, address to, address operator) external view; }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Provides a flexible and updatable auth pattern which is completely separate from application logic. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol) /// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol) abstract contract Auth { event OwnershipTransferred(address indexed user, address indexed newOwner); event AuthorityUpdated(address indexed user, Authority indexed newAuthority); address public owner; Authority public authority; constructor(address _owner, Authority _authority) { owner = _owner; authority = _authority; emit OwnershipTransferred(msg.sender, _owner); emit AuthorityUpdated(msg.sender, _authority); } modifier requiresAuth() virtual { require(isAuthorized(msg.sender, msg.sig), "UNAUTHORIZED"); _; } function isAuthorized(address user, bytes4 functionSig) internal view virtual returns (bool) { Authority auth = authority; // Memoizing authority saves us a warm SLOAD, around 100 gas. // Checking if the caller is the owner only after calling the authority saves gas in most cases, but be // aware that this makes protected functions uncallable even to the owner if the authority is out of order. return (address(auth) != address(0) && auth.canCall(user, address(this), functionSig)) || user == owner; } function setAuthority(Authority newAuthority) public virtual { // We check if the caller is the owner first because we want to ensure they can // always swap out the authority even if it's reverting or using up a lot of gas. require(msg.sender == owner || authority.canCall(msg.sender, address(this), msg.sig)); authority = newAuthority; emit AuthorityUpdated(msg.sender, newAuthority); } function transferOwnership(address newOwner) public virtual requiresAuth { owner = newOwner; emit OwnershipTransferred(msg.sender, newOwner); } } /// @notice A generic interface for a contract which provides authorization data to an Auth instance. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol) /// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol) interface Authority { function canCall( address user, address target, bytes4 functionSig ) external view returns (bool); }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Gas optimized reentrancy protection for smart contracts. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/ReentrancyGuard.sol) /// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/security/ReentrancyGuard.sol) abstract contract ReentrancyGuard { uint256 private locked = 1; modifier nonReentrant() virtual { require(locked == 1, "REENTRANCY"); locked = 2; _; locked = 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @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://consensys.net/diligence/blog/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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @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 or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * 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. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @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`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) 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 FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/utils/ERC721Holder.sol) pragma solidity ^0.8.20; import {IERC721Receiver} from "../IERC721Receiver.sol"; /** * @dev Implementation of the {IERC721Receiver} interface. * * Accepts all token transfers. * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or * {IERC721-setApprovalForAll}. */ abstract contract ERC721Holder is IERC721Receiver { /** * @dev See {IERC721Receiver-onERC721Received}. * * Always returns `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) { return this.onERC721Received.selector; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/utils/ERC1155Holder.sol) pragma solidity ^0.8.20; import {IERC165, ERC165} from "../../../utils/introspection/ERC165.sol"; import {IERC1155Receiver} from "../IERC1155Receiver.sol"; /** * @dev Simple implementation of `IERC1155Receiver` that will allow a contract to hold ERC1155 tokens. * * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be * stuck. */ abstract contract ERC1155Holder is ERC165, IERC1155Receiver { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); } function onERC1155Received( address, address, uint256, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155Received.selector; } function onERC1155BatchReceived( address, address, uint256[] memory, uint256[] memory, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155BatchReceived.selector; } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; interface IRateProvider { function getRate() external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.20; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be * reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Interface that must be implemented by smart contracts in order to receive * ERC-1155 token transfers. */ interface IERC1155Receiver is IERC165 { /** * @dev Handles the receipt of a single ERC1155 token type. This function is * called at the end of a `safeTransferFrom` after the balance has been updated. * * NOTE: To accept the transfer, this must return * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` * (i.e. 0xf23a6e61, or its own function selector). * * @param operator The address which initiated the transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param id The ID of the token being transferred * @param value The amount of tokens being transferred * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** * @dev Handles the receipt of a multiple ERC1155 token types. This function * is called at the end of a `safeBatchTransferFrom` after the balances have * been updated. * * NOTE: To accept the transfer(s), this must return * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` * (i.e. 0xbc197c81, or its own function selector). * * @param operator The address which initiated the batch transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param ids An array containing ids of each token being transferred (order and length must match values array) * @param values An array containing amounts of each token being transferred (order and length must match ids array) * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
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Contract Security Audit
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ERC20","name":"withdrawAsset","type":"address"},{"internalType":"uint256","name":"shareAmount","type":"uint256"},{"internalType":"uint256","name":"minimumAssets","type":"uint256"},{"internalType":"address","name":"to","type":"address"}],"name":"bulkWithdraw","outputs":[{"internalType":"uint256","name":"assetsOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"denyAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"denyFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"denyOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"denyTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ERC20","name":"depositAsset","type":"address"},{"internalType":"uint256","name":"depositAmount","type":"uint256"},{"internalType":"uint256","name":"minimumMint","type":"uint256"}],"name":"deposit","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"depositNonce","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ERC20","name":"depositAsset","type":"address"},{"internalType":"uint256","name":"depositAmount","type":"uint256"},{"internalType":"uint256","name":"minimumMint","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"depositWithPermit","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"fromDenyList","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ERC20","name":"","type":"address"}],"name":"isSupported","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nativeWrapper","outputs":[{"internalType":"contract WETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"operatorDenyList","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"publicDepositHistory","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"depositAsset","type":"address"},{"internalType":"uint256","name":"depositAmount","type":"uint256"},{"internalType":"uint256","name":"shareAmount","type":"uint256"},{"internalType":"uint256","name":"depositTimestamp","type":"uint256"},{"internalType":"uint256","name":"shareLockUpPeriodAtTimeOfDeposit","type":"uint256"}],"name":"refundDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ERC20","name":"asset","type":"address"}],"name":"removeAsset","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract Authority","name":"newAuthority","type":"address"}],"name":"setAuthority","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint64","name":"_shareLockPeriod","type":"uint64"}],"name":"setShareLockPeriod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shareLockPeriod","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"shareUnlockTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"toDenyList","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract BoringVault","name":"","type":"address"}],"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)
0000000000000000000000000463e60c7ce10e57911ab7bd1667eaa21de3e79b000000000000000000000000917cee801a67f933f2e6b33fc0cd1ed2d5909d88000000000000000000000000be16605b22a7facef247363312121670dfe5afbe000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
-----Decoded View---------------
Arg [0] : _owner (address): 0x0463E60C7cE10e57911AB7bD1667eaa21de3e79b
Arg [1] : _vault (address): 0x917ceE801a67f933F2e6b33fC0cD1ED2d5909D88
Arg [2] : _accountant (address): 0xbe16605B22a7faCEf247363312121670DFe5afBE
Arg [3] : _weth (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000463e60c7ce10e57911ab7bd1667eaa21de3e79b
Arg [1] : 000000000000000000000000917cee801a67f933f2e6b33fc0cd1ed2d5909d88
Arg [2] : 000000000000000000000000be16605b22a7facef247363312121670dfe5afbe
Arg [3] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
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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.