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ContractCreator
TokenTracker
Latest 11 from a total of 11 transactions
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Request Credit | 7960040 | 15 hrs ago | IN | 0 S | 0.0154517 | ||||
Send Report | 7960032 | 15 hrs ago | IN | 0 S | 0.02414663 | ||||
Request Credit | 7831902 | 37 hrs ago | IN | 0 S | 0.01545703 | ||||
Send Report | 7831895 | 37 hrs ago | IN | 0 S | 0.02513632 | ||||
Harvest | 7831875 | 37 hrs ago | IN | 0 S | 0.0267237 | ||||
Request Credit | 7674785 | 2 days ago | IN | 0 S | 0.01545412 | ||||
Send Report | 7674772 | 2 days ago | IN | 0 S | 0.02413965 | ||||
Harvest | 7674749 | 2 days ago | IN | 0 S | 0.02549289 | ||||
Request Credit | 7524872 | 3 days ago | IN | 0 S | 0.01837917 | ||||
Transfer Ownersh... | 7522270 | 3 days ago | IN | 0 S | 0.00148725 | ||||
Enable Guardian | 7522270 | 3 days ago | IN | 0 S | 0.0024556 |
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Contract Source Code Verified (Exact Match)
Contract Name:
SiloV2Adapter
Compiler Version
v0.8.27+commit.40a35a09
Optimization Enabled:
Yes with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity 0.8.27; import { ERC4626AdapterHarvestable } from "src/abstracts/ERC4626AdapterHarvestable.sol"; import { ISiloIncentivesController } from "interfaces/silo/ISilo.sol"; contract SiloV2Adapter is ERC4626AdapterHarvestable { /// @notice The Silo incentives controller. ISiloIncentivesController public incentivesController; /*////////////////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////////////////*/ /// @notice Constructor for the strategy adapter. /// @param _multistrategy The address of the multi-strategy contract. /// @param _asset The address of the asset. /// @param _vault The address of the ERC4626 vault. /// @param _name The name of this Strategy Adapter. /// @param _id The type identifier of this Strategy Adapter. constructor( address _multistrategy, address _asset, address _vault, address _incentivesController, HarvestAddresses memory _harvestAddresses, string memory _name, string memory _id ) ERC4626AdapterHarvestable( _multistrategy, _asset, _vault, _harvestAddresses, _name, _id ) { incentivesController = ISiloIncentivesController(_incentivesController); } /*////////////////////////////////////////////////////////////////////////// INTERNAL NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Claims the rewards. function _claim() internal override { incentivesController.claimRewards(address(this)); } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity 0.8.27; import { IERC20, SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol"; import { Math } from "@openzeppelin/contracts/utils/math/Math.sol"; import { StrategyAdapterHarvestable } from "./StrategyAdapterHarvestable.sol"; import { Errors } from "src/infra/libraries/Errors.sol"; abstract contract ERC4626AdapterHarvestable is StrategyAdapterHarvestable { using SafeERC20 for IERC20; using Math for uint256; /// @notice The ERC4626 Vault IERC4626 public vault; /*////////////////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////////////////*/ /// @notice Constructor for the strategy adapter. /// @param _multistrategy The address of the multi-strategy contract. /// @param _asset The address of the asset. /// @param _vault The address of the ERC4626 vault. /// @param _name The name of this Strategy Adapter. /// @param _id The type identifier of this Strategy Adapter. constructor( address _multistrategy, address _asset, address _vault, HarvestAddresses memory _harvestAddresses, string memory _name, string memory _id ) StrategyAdapterHarvestable(_multistrategy, _asset, _harvestAddresses, _name, _id) { vault = IERC4626(_vault); _giveAllowances(); } /*////////////////////////////////////////////////////////////////////////// INTERNAL CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Returns the total amount of assets held in this adapter. function _totalAssets() internal override view returns(uint256) { uint256 sharesBalance = vault.balanceOf(address(this)); uint256 assetsSupplied = vault.convertToAssets(sharesBalance); uint256 assetBalance = IERC20(asset).balanceOf(address(this)); uint256 total = assetsSupplied + assetBalance; return total > 0 ? total - 1 : total; } /// @inheritdoc StrategyAdapterHarvestable function _verifyRewardToken(address _token) internal view override { require(_token != address(vault), Errors.InvalidRewardToken(_token)); } /*////////////////////////////////////////////////////////////////////////// INTERNAL NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Deposits all the liquidity into the ERC4626 vault. function _deposit() internal override { uint256 balance = IERC20(asset).balanceOf(address(this)); vault.deposit(balance, address(this)); } /// @notice Withdraws a specified amount of assets from the ERC4626 vault. /// @param _amount The amount of assets to withdraw from the Silo. function _withdraw(uint256 _amount) internal override { vault.withdraw(_amount, address(this), address(this)); } /// @notice Performs an emergency withdrawal of all assets from the ERC4626 vault. /// This function is intended for emergency situations where all assets need to be withdrawn immediately. function _emergencyWithdraw() internal override { uint256 maxWithdraw = vault.maxWithdraw(address(this)); if (maxWithdraw > 0) { vault.withdraw(maxWithdraw, address(this), address(this)); } } /// @notice Sets the maximum allowance of the base asset for the ERC4626 vault. function _giveAllowances() internal override { IERC20(asset).forceApprove(address(vault), type(uint).max); IERC20(wrappedGas).forceApprove(swapper, type(uint).max); } /// @notice Revokes the allowance of the base asset for the ERC4626 vault. function _revokeAllowances() internal override { IERC20(asset).forceApprove(address(vault), 0); IERC20(wrappedGas).forceApprove(swapper, 0); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {IERC20} from "@openzeppelin-4/contracts/token/ERC20/IERC20.sol"; import {SafeERC20} from "@openzeppelin-4/contracts/token/ERC20/utils/SafeERC20.sol"; interface ISilo { function deposit(address asset, uint amount, bool collateralOnly) external; function withdraw(address asset, uint amount, bool collateralOnly) external; function balanceOf(address user) external view returns (uint256); } interface ISiloCollateralToken { function asset() external view returns (address); } interface ISiloLens { function balanceOfUnderlying( uint256 _assetTotalDeposits, address _shareToken, address _user ) external view returns (uint256); function totalDepositsWithInterest( address _silo, address _asset ) external view returns (uint256 _totalDeposits); } interface ISiloRewards { function claimRewardsToSelf( address[] memory assets, uint256 amount ) external; } interface ISiloIncentivesController { function claimRewards(address to) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; import {IERC20Permit} from "../extensions/IERC20Permit.sol"; import {Address} from "../../../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; /** * @dev An operation with an ERC20 token failed. */ error SafeERC20FailedOperation(address token); /** * @dev Indicates a failed `decreaseAllowance` request. */ error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease); /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value))); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value))); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); forceApprove(token, spender, oldAllowance + value); } /** * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no * value, non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal { unchecked { uint256 currentAllowance = token.allowance(address(this), spender); if (currentAllowance < requestedDecrease) { revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease); } forceApprove(token, spender, currentAllowance - requestedDecrease); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value)); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0))); _callOptionalReturn(token, approvalCall); } } /** * @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); if (returndata.length != 0 && !abi.decode(returndata, (bool))) { revert SafeERC20FailedOperation(address(token)); } } /** * @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). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // 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 cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4626.sol) pragma solidity ^0.8.20; import {IERC20} from "../token/ERC20/IERC20.sol"; import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol"; /** * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626]. */ interface IERC4626 is IERC20, IERC20Metadata { event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares); event Withdraw( address indexed sender, address indexed receiver, address indexed owner, uint256 assets, uint256 shares ); /** * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing. * * - MUST be an ERC-20 token contract. * - MUST NOT revert. */ function asset() external view returns (address assetTokenAddress); /** * @dev Returns the total amount of the underlying asset that is “managed” by Vault. * * - SHOULD include any compounding that occurs from yield. * - MUST be inclusive of any fees that are charged against assets in the Vault. * - MUST NOT revert. */ function totalAssets() external view returns (uint256 totalManagedAssets); /** * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal * scenario where all the conditions are met. * * - MUST NOT be inclusive of any fees that are charged against assets in the Vault. * - MUST NOT show any variations depending on the caller. * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. * - MUST NOT revert. * * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and * from. */ function convertToShares(uint256 assets) external view returns (uint256 shares); /** * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal * scenario where all the conditions are met. * * - MUST NOT be inclusive of any fees that are charged against assets in the Vault. * - MUST NOT show any variations depending on the caller. * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. * - MUST NOT revert. * * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and * from. */ function convertToAssets(uint256 shares) external view returns (uint256 assets); /** * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver, * through a deposit call. * * - MUST return a limited value if receiver is subject to some deposit limit. * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited. * - MUST NOT revert. */ function maxDeposit(address receiver) external view returns (uint256 maxAssets); /** * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given * current on-chain conditions. * * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit * call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called * in the same transaction. * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the * deposit would be accepted, regardless if the user has enough tokens approved, etc. * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. * - MUST NOT revert. * * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in * share price or some other type of condition, meaning the depositor will lose assets by depositing. */ function previewDeposit(uint256 assets) external view returns (uint256 shares); /** * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens. * * - MUST emit the Deposit event. * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the * deposit execution, and are accounted for during deposit. * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not * approving enough underlying tokens to the Vault contract, etc). * * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. */ function deposit(uint256 assets, address receiver) external returns (uint256 shares); /** * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call. * - MUST return a limited value if receiver is subject to some mint limit. * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted. * - MUST NOT revert. */ function maxMint(address receiver) external view returns (uint256 maxShares); /** * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given * current on-chain conditions. * * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call * in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the * same transaction. * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint * would be accepted, regardless if the user has enough tokens approved, etc. * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. * - MUST NOT revert. * * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in * share price or some other type of condition, meaning the depositor will lose assets by minting. */ function previewMint(uint256 shares) external view returns (uint256 assets); /** * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens. * * - MUST emit the Deposit event. * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint * execution, and are accounted for during mint. * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not * approving enough underlying tokens to the Vault contract, etc). * * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. */ function mint(uint256 shares, address receiver) external returns (uint256 assets); /** * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the * Vault, through a withdraw call. * * - MUST return a limited value if owner is subject to some withdrawal limit or timelock. * - MUST NOT revert. */ function maxWithdraw(address owner) external view returns (uint256 maxAssets); /** * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block, * given current on-chain conditions. * * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw * call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if * called * in the same transaction. * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though * the withdrawal would be accepted, regardless if the user has enough shares, etc. * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. * - MUST NOT revert. * * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in * share price or some other type of condition, meaning the depositor will lose assets by depositing. */ function previewWithdraw(uint256 assets) external view returns (uint256 shares); /** * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver. * * - MUST emit the Withdraw event. * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the * withdraw execution, and are accounted for during withdraw. * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner * not having enough shares, etc). * * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed. * Those methods should be performed separately. */ function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares); /** * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault, * through a redeem call. * * - MUST return a limited value if owner is subject to some withdrawal limit or timelock. * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock. * - MUST NOT revert. */ function maxRedeem(address owner) external view returns (uint256 maxShares); /** * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block, * given current on-chain conditions. * * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call * in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the * same transaction. * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the * redemption would be accepted, regardless if the user has enough shares, etc. * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. * - MUST NOT revert. * * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in * share price or some other type of condition, meaning the depositor will lose assets by redeeming. */ function previewRedeem(uint256 shares) external view returns (uint256 assets); /** * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver. * * - MUST emit the Withdraw event. * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the * redeem execution, and are accounted for during redeem. * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner * not having enough shares, etc). * * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed. * Those methods should be performed separately. */ function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity 0.8.27; import { IERC20, SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import { IStrategyAdapterHarvestable } from "interfaces/infra/multistrategy/IStrategyAdapterHarvestable.sol"; import { IGoatSwapper } from "interfaces/infra/IGoatSwapper.sol"; import { StrategyAdapter } from "src/abstracts/StrategyAdapter.sol"; import { Errors } from "src/infra/libraries/Errors.sol"; abstract contract StrategyAdapterHarvestable is IStrategyAdapterHarvestable, StrategyAdapter { using SafeERC20 for IERC20; struct HarvestAddresses { address swapper; address wrappedGas; } /// @notice The timestamp of the last successful harvest. uint256 public lastHarvest; /// @notice An array of reward token addresses that can be claimed and swapped. address[] public rewards; /// @notice The address of the Wrapped Gas token used as an intermediary for swaps. /// Used because it has high liquidity. address internal wrappedGas; /// @notice The address of the swapper contract used to swap reward tokens. address swapper; /// @notice A mapping of minimum amounts for each reward token before it can be swapped. /// @dev The key is the reward token address, and the value is the minimum amount required for swapping. mapping(address token => uint minimumAmount) public minimumAmounts; /*////////////////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////////////////*/ /// @notice Constructor for the strategy adapter. /// @param _multistrategy The address of the multi-strategy contract. /// @param _asset The address of the asset. /// @param _harvestAddresses Struct of Protocol Addresses. /// @param _name The name of this Strategy Adapter. /// @param _id The type identifier of this Strategy Adapter. constructor( address _multistrategy, address _asset, HarvestAddresses memory _harvestAddresses, string memory _name, string memory _id ) StrategyAdapter(_multistrategy, _asset, _name, _id) { swapper = _harvestAddresses.swapper; wrappedGas = _harvestAddresses.wrappedGas; } /*////////////////////////////////////////////////////////////////////////// USER FACING CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapterHarvestable function rewardsLength() external view returns (uint256) { return rewards.length; } /*////////////////////////////////////////////////////////////////////////// USER FACING NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapterHarvestable function harvest() external whenNotPaused { _claim(); _swapRewardsToWrappedGas(); if (IERC20(wrappedGas).balanceOf(address(this)) > minimumAmounts[wrappedGas]) { _swapWrappedGasToAsset(); uint256 assetsHarvested = IERC20(asset).balanceOf(address(this)); _deposit(); lastHarvest = block.timestamp; emit AdapterHarvested(msg.sender, assetsHarvested, _totalAssets()); } } /// @inheritdoc IStrategyAdapterHarvestable function addReward(address _token) external onlyOwner { require(_token != asset && _token != wrappedGas, Errors.InvalidRewardToken(_token)); _verifyRewardToken(_token); rewards.push(_token); IERC20(_token).forceApprove(swapper, type(uint256).max); } /// @inheritdoc IStrategyAdapterHarvestable function resetRewards() external onlyOwner { for (uint i; i < rewards.length; ++i) { IERC20(rewards[i]).forceApprove(swapper, 0); } delete rewards; } /// @inheritdoc IStrategyAdapterHarvestable function setRewardMinimumAmount(address _token, uint _minAmount) external onlyOwner { minimumAmounts[_token] = _minAmount; } /// @inheritdoc IStrategyAdapterHarvestable function updateSwapper(address _swapper) external onlyOwner { for (uint i; i < rewards.length; ++i) { address token = rewards[i]; IERC20(token).forceApprove(swapper, 0); IERC20(token).forceApprove(_swapper, type(uint256).max); } IERC20(wrappedGas).forceApprove(swapper, 0); IERC20(wrappedGas).forceApprove(_swapper, type(uint256).max); swapper = _swapper; emit SwapperUpdated(_swapper); } /*////////////////////////////////////////////////////////////////////////// INTERNAL NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Swaps all reward tokens to Wrapped Gas. /// @dev This function checks if the balance of each reward token exceeds the minimum amount before swapping. function _swapRewardsToWrappedGas() internal virtual { for (uint i; i < rewards.length; ++i) { address token = rewards[i]; uint256 amount = IERC20(token).balanceOf(address(this)); if (amount > minimumAmounts[token]) { IGoatSwapper(swapper).swap(token, wrappedGas, amount); } } } /// @notice Swaps Wrapped Gas to `asset`. function _swapWrappedGasToAsset() internal virtual { if (asset != wrappedGas) _swap(wrappedGas, asset); } /// @notice Swaps one token for another using the swapper contract. /// @param tokenFrom The address of the token to swap from. /// @param tokenTo The address of the token to swap to. function _swap(address tokenFrom, address tokenTo) internal { uint amount = IERC20(tokenFrom).balanceOf(address(this)); IGoatSwapper(swapper).swap(tokenFrom, tokenTo, amount); } /// @notice Claims rewards. /// @dev This function is meant to be overridden by child contracts to implement reward claiming logic. function _claim() internal virtual {} /// @notice Verifies if a token is a valid reward token. /// @dev This function is meant to be overridden by child contracts to implement token verification logic. /// @param _token The address of the token to verify. function _verifyRewardToken(address _token) internal view virtual {} }
// SPDX-License-Identifier: MIT pragma solidity >=0.8.20; /// @title Errors /// @notice Library containing all custom errors the protocol may revert with. library Errors { /*////////////////////////////////////////////////////////////////////////// GENERICS //////////////////////////////////////////////////////////////////////////*/ /// @notice Thrown when `msg.sender` is not the manager. error CallerNotManager(address caller); /// @notice Thrown when `msg.sender` is not a guardian. error CallerNotGuardian(address caller); /// @notice Thrown when `amount` is zero. error ZeroAmount(uint256 amount); /// @notice Thrown when setting an address to the zero address. error ZeroAddress(); /// @notice Thrown when `currentBalance` is lower than `amount`. error InsufficientBalance(uint256 currentBalance, uint256 amount); /// @notice Thrown when `addr` is an unexpected address. error InvalidAddress(address addr); /*////////////////////////////////////////////////////////////////////////// MULTISTRATEGY //////////////////////////////////////////////////////////////////////////*/ /// @notice Thrown when performing an action on a non-active strategy. error StrategyNotActive(address strategy); /// @notice Thrown when performing an action on an active strategy. error StrategyAlreadyActive(address strategy); /// @notice Thrown when a strategy is reporting a gain and a loss simultaneously. error GainLossMismatch(); /// @notice Thrown when a deposit would exceed the depositLimit error DepositLimit(); /// @notice Thrown when the owner tries to set a fee above the maximum permitted fee. error ExcessiveFee(uint256 fee); /// @notice Thrown when the debtRatio of a strategy or a multistrategy is above 100%. error DebtRatioAboveMaximum(uint256 debtRatio); /// @notice Thrown when trying to remove a strategy from `withdrawOrder` that still has outstanding debt. error StrategyWithOutstandingDebt(); /// @notice Thrown when minDebtDelta is above maxDebtDelta or maxDebtDelta is below minDebtDelta. error InvalidDebtDelta(); /// @notice Thrown when a strategy is reporting a loss higher than its total debt. error InvalidStrategyLoss(); /// @notice Thrown when there is non-Zero Address following a Zero Address in withdrawOrder. error InvalidWithdrawOrder(); /// @notice Thrown when trying to add a new strategy to the multistrategy but it already reached the /// maximum amount of strategies. error MaximumAmountStrategies(); /// @notice Thrown when trying to remove a strategy that has a `debtRatio` greater than 0. error StrategyNotRetired(); /// @notice Thrown when there isn't enough liquidity to cover a withdraw /// @param assets The amount of assets requested. /// @param liquidity The current liquidity available in the contract. error InsufficientLiquidity(uint256 assets, uint256 liquidity); /// @notice Thrown when depositing / minting on a retired multistrategy. error Retired(); /*////////////////////////////////////////////////////////////////////////// STRATEGY ADAPTER //////////////////////////////////////////////////////////////////////////*/ /// @notice Thrown when the caller is not the Multistrategy. error CallerNotMultistrategy(address caller); /// @notice Thrown when the `_asset` parameter on the constructor doesn't match /// the `deposit` token on Multistrategy. error AssetMismatch(address multAsset, address stratAsset); /// @notice Thrown when the requested slippage limit exceeds the maximum permitted value. /// @param slippageLimit The slippage limit in basis points (BPS). error SlippageLimitExceeded(uint256 slippageLimit); /// @notice Thrown when the actual slippage exceeds the allowed slippage. /// @param amount0 The expected amount after accounting for allowed slippage. /// @param amount1 The actual amount obtained. error SlippageCheckFailed(uint256 amount0, uint256 amount1); /// @notice Thrown when the reward added is the base asset of the Strategy. error InvalidRewardToken(address rewardToken); /*////////////////////////////////////////////////////////////////////////// ERC-4626 //////////////////////////////////////////////////////////////////////////*/ /** * @dev Attempted to deposit more assets than the max amount for `receiver`. */ error ERC4626ExceededMaxDeposit(address receiver, uint256 assets, uint256 max); /** * @dev Attempted to mint more shares than the max amount for `receiver`. */ error ERC4626ExceededMaxMint(address receiver, uint256 shares, uint256 max); /** * @dev Attempted to withdraw more assets than the max amount for `receiver`. */ error ERC4626ExceededMaxWithdraw(address owner, uint256 assets, uint256 max); /** * @dev Attempted to redeem more shares than the max amount for `receiver`. */ error ERC4626ExceededMaxRedeem(address owner, uint256 shares, uint256 max); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (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 v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/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; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ 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)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ 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"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ 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"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // 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 cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @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 value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` 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 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @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. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ 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]. * * CAUTION: See Security Considerations above. */ 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 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/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; interface IStrategyAdapterHarvestable { /// @notice Emitted when the adapter successfully harvests rewards. /// @param caller The address of the caller who triggered the harvest. /// @param amountHarvested The amount of `want` tokens harvested. /// @param totalAssets The total assets held by the adapter after the harvest. event AdapterHarvested(address caller, uint256 amountHarvested, uint256 totalAssets); /// @notice Emitted when the swapper contract is updated. /// @param newSwapper The address of the new swapper contract. event SwapperUpdated(address newSwapper); /// @notice Returns the amount of different reward tokens existent in the `rewards` array function rewardsLength() external view returns (uint256); /// @notice Harvests rewards, swaps them to WETH, and then to the desired asset. /// @dev This function claims rewards, swaps them to WETH, and then converts WETH to the `want` token. function harvest() external; /// @notice Adds a new reward token to be claimed. /// @param token The address of the reward token to add. /// @dev The token must not be the same as `want` or `weth`. function addReward(address token) external; /// @notice Resets the list of reward tokens. /// @dev This function removes all reward tokens and revokes their approvals. function resetRewards() external; /// @notice Sets the minimum amount of a reward token required for swapping. /// @param token The address of the reward token. /// @param minAmount The minimum amount of the token required for swapping. function setRewardMinimumAmount(address token, uint256 minAmount) external; /// @notice Updates the swapper contract used for swapping tokens. /// @param swapper The address of the new swapper contract. /// @dev This function revokes approvals from the old swapper and grants them to the new swapper. function updateSwapper(address swapper) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IGoatSwapper { function swap( address fromToken, address toToken, uint256 amountIn ) external returns (uint256 amountOut); function swap( address fromToken, address toToken, uint256 amountIn, uint256 minAmountOut ) external returns (uint256 amountOut); function getAmountOut( address _fromToken, address _toToken, uint256 _amountIn ) external view returns (uint256 amountOut); struct SwapInfo { address router; bytes data; uint256 amountIndex; } function setSwapInfo( address _fromToken, address _toToken, SwapInfo calldata _swapInfo ) external; function setSwapInfos( address[] calldata _fromTokens, address[] calldata _toTokens, SwapInfo[] calldata _swapInfos ) external; }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity 0.8.27; import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol"; import { IERC20, SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import { Math } from "@openzeppelin/contracts/utils/math/Math.sol"; import { StrategyAdapterAdminable } from "src/abstracts/StrategyAdapterAdminable.sol"; import { IStrategyAdapter } from "interfaces/infra/multistrategy/IStrategyAdapter.sol"; import { IMultistrategy } from "interfaces/infra/multistrategy/IMultistrategy.sol"; import { Errors } from "src/infra/libraries/Errors.sol"; abstract contract StrategyAdapter is IStrategyAdapter, StrategyAdapterAdminable { using SafeERC20 for IERC20; using Math for uint256; /// @dev 100% in BPS, setting the slippage to 100% means no slippage protection. uint256 constant MAX_SLIPPAGE = 10_000; /// @inheritdoc IStrategyAdapter address public immutable multistrategy; /// @inheritdoc IStrategyAdapter address public immutable asset; /// @inheritdoc IStrategyAdapter uint256 public slippageLimit; /// @notice Name of this Strategy Adapter string public name; /// @notice Identifier of this Strategy Adapter string public id; /*////////////////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////////////////*/ /// @dev Reverts if `_asset` doesn't match `asset` on the Multistrategy. /// @param _multistrategy Address of the multistrategy this strategy will belongs to. /// @param _asset Address of the token used to deposit and withdraw on this strategy. constructor(address _multistrategy, address _asset, string memory _name, string memory _id) StrategyAdapterAdminable(msg.sender) { require(_asset == IERC4626(_multistrategy).asset(), Errors.AssetMismatch(IERC4626(_multistrategy).asset(), _asset)); multistrategy = _multistrategy; asset = _asset; slippageLimit = 0; name = _name; id = _id; IERC20(asset).forceApprove(multistrategy, type(uint256).max); } /// @dev Reverts if called by any account other than the Multistrategy this strategy belongs to. modifier onlyMultistrategy() { require(msg.sender == multistrategy, Errors.CallerNotMultistrategy(msg.sender)); _; } /*////////////////////////////////////////////////////////////////////////// USER FACING CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapter function totalAssets() external view returns (uint256) { return _totalAssets(); } /// @inheritdoc IStrategyAdapter function currentPnL() external view returns (uint256, uint256) { return _calculateGainAndLoss(_totalAssets()); } /*////////////////////////////////////////////////////////////////////////// USER FACING NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapter function requestCredit() external onlyOwner whenNotPaused { uint256 credit = IMultistrategy(multistrategy).requestCredit(); if(credit > 0) { _deposit(); } } /// @inheritdoc IStrategyAdapter function setSlippageLimit(uint256 _slippageLimit) external onlyOwner { require(_slippageLimit <= MAX_SLIPPAGE, Errors.SlippageLimitExceeded(_slippageLimit)); slippageLimit = _slippageLimit; emit SlippageLimitSet(_slippageLimit); } /// @inheritdoc IStrategyAdapter function sendReport(uint256 _repayAmount) external onlyOwner whenNotPaused { _sendReport(_repayAmount); } /// @inheritdoc IStrategyAdapter function askReport() external onlyMultistrategy whenNotPaused { _sendReport(0); } /// @inheritdoc IStrategyAdapter function sendReportPanicked() external onlyOwner whenPaused { _sendReportPanicked(); } /// @inheritdoc IStrategyAdapter /// @dev Any surplus on the withdraw won't be sent to the multistrategy. /// It will be eventually reported back as gain when sendReport is called. function withdraw(uint256 _amount) external onlyMultistrategy whenNotPaused returns (uint256) { _tryWithdraw(_amount); uint256 withdrawn = Math.min(_amount, _liquidity()); IERC20(asset).safeTransfer(multistrategy, withdrawn); return withdrawn; } /// @inheritdoc IStrategyAdapter function panic() external onlyGuardian { _emergencyWithdraw(); _revokeAllowances(); _pause(); } /// @inheritdoc IStrategyAdapter function pause() external onlyGuardian { _revokeAllowances(); _pause(); } /// @inheritdoc IStrategyAdapter function unpause() external onlyOwner { _unpause(); _giveAllowances(); } /*////////////////////////////////////////////////////////////////////////// INTERNAL CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Calculates the gain and loss based on current assets. /// /// This function performs the following actions: /// - Retrieves the total debt of the strategy from the multi-strategy contract. /// - Determines whether the current assets are greater than or equal to the total debt to calculate the gain. /// - If the current assets are less than the total debt, calculates the loss. /// /// @param _currentAssets The current assets held by the strategy. /// @return gain The calculated gain. /// @return loss The calculated loss. function _calculateGainAndLoss(uint256 _currentAssets) internal view returns (uint256, uint256) { uint256 totalDebt = IMultistrategy(multistrategy).strategyTotalDebt(address(this)); uint256 gain = 0; uint256 loss = 0; if(_currentAssets >= totalDebt) { gain = _currentAssets - totalDebt; } else { loss = totalDebt - _currentAssets; } return (gain, loss); } /// @notice Calculates the amount to be withdrawn from the strategy. /// /// This function performs the following actions: /// - Retrieves the exceeding debt of the strategy from the multi-strategy contract. /// - If there is exceeding debt and a repayment amount is specified: /// - Calculates the amount to be withdrawn to repay the exceeding debt at maximum slippage. /// - Ensures the amount to be withdrawn does not exceed the repayment amount, adding any strategy gain. /// - If there is no exceeding debt or no repayment amount, returns the strategy gain as the amount to be withdrawn. /// - Note that slippage calculations are not applied here as any slippage would be considered a loss and subtracted from the gain. /// /// @param _repayAmount The amount to be repaid. /// @param _strategyGain The gain of the strategy. /// @return The amount to be withdrawn from the strategy. function _calculateAmountToBeWithdrawn(uint256 _repayAmount, uint256 _strategyGain) internal view returns (uint256) { uint256 exceedingDebt = IMultistrategy(multistrategy).debtExcess(address(this)); if(exceedingDebt > 0 && _repayAmount > 0) { if(slippageLimit == MAX_SLIPPAGE) return _repayAmount + _strategyGain; uint256 exceedingDebtWithSlippage = exceedingDebt.mulDiv(MAX_SLIPPAGE, MAX_SLIPPAGE - slippageLimit); return Math.min(_repayAmount, exceedingDebtWithSlippage) + _strategyGain; } return _strategyGain; } /// @notice Calculates the adjusted gain and loss after accounting for slippage. /// /// This function performs the following actions: /// - Calculates the slippage loss as the difference between the amount intended to be withdrawn and the actual amount withdrawn. /// - If there is no slippage loss, returns the original gain and loss. /// - If there is slippage loss: /// - Deducts the slippage loss from the gain. /// - If the slippage loss exceeds the gain, the remaining slippage loss is added to the loss. /// - Returns the adjusted gain and loss after accounting for slippage. /// /// @param _gain The initial gain before slippage. /// @param _loss The initial loss before slippage. /// @param _currentBalance The current balance of asset in this contract. /// @param _toBeWithdrawn The amount intended to be withdrawn. /// @return The adjusted gain and loss after slippage. function _calculateGainAndLossAfterSlippage( uint256 _gain, uint256 _loss, uint256 _currentBalance, uint256 _toBeWithdrawn ) internal pure returns (uint256, uint256) { uint256 slippageLoss = (_toBeWithdrawn > _currentBalance) ? _toBeWithdrawn - _currentBalance : 0; if(slippageLoss == 0) return (_gain, _loss); if(slippageLoss > _gain) { slippageLoss -= _gain; _gain = 0; } else { _gain -= slippageLoss; slippageLoss = 0; } _loss += slippageLoss; return (_gain, _loss); } /// @notice Returns the current balance of asset in this contract. function _liquidity() internal view returns (uint256) { return IERC20(asset).balanceOf(address(this)); } /// @notice Returns the amount of `asset` the underlying strategy holds. In the case this strategy /// has swapped `asset` for another asset, it should return the most approximate value. /// @dev Child contract must implement the logic to calculate the amount of assets. function _totalAssets() internal virtual view returns (uint256) {} /*////////////////////////////////////////////////////////////////////////// INTERNAL NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Sends a report on the strategy's performance. /// /// This function performs the following actions: /// - Calculates the current assets of the strategy. /// - Attempts to withdraw the repayment amount plus any gain. /// - Ensures that the gain is not used to repay the debt. /// - Reports the available amount for repayment, the gain, and the loss to the multi-strategy. /// /// @param _repayAmount The amount to be repaid to the multi-strategy. function _sendReport(uint256 _repayAmount) internal { uint256 currentAssets = _totalAssets(); (uint256 gain, uint256 loss) = _calculateGainAndLoss(currentAssets); uint256 toBeWithdrawn = _calculateAmountToBeWithdrawn(_repayAmount, gain); _tryWithdraw(toBeWithdrawn); (gain, loss) = _calculateGainAndLossAfterSlippage(gain, loss, _liquidity(), toBeWithdrawn); uint256 availableForRepay = _liquidity() - gain; IMultistrategy(multistrategy).strategyReport(availableForRepay, gain, loss); } /// @notice Sends a report on the strategy's performance after the strategy has been panicked. /// /// This function performs the following actions: /// - Retrieves the current balance of the asset held by the contract. /// - Calculates the gain and loss based on the current assets. /// - Ensures that the gain is not used to repay the debt. /// - Reports the available amount for repayment, the gain, and the loss to the multi-strategy. function _sendReportPanicked() internal { uint256 currentAssets = _liquidity(); (uint256 gain, uint256 loss) = _calculateGainAndLoss(currentAssets); uint256 availableForRepay = currentAssets - gain; IMultistrategy(multistrategy).strategyReport(availableForRepay, gain, loss); } /// @notice Attempts to withdraw a specified amount from the strategy. /// /// This function performs the following actions: /// - Calls the internal `_withdraw` function to withdraw the desired amount. /// - Checks the current balance of the contract after the withdrawal. /// - If the balance is less than the desired amount, it reverts with an insufficient balance error. /// /// @param _amount The amount to withdraw from the strategy. function _tryWithdraw(uint256 _amount) internal { if(_amount == 0 || _amount <= _liquidity()) return; // Liquidity is considered as amount already withdrawn, this amount doesn't need // to be withdrawn. _withdraw(_amount - _liquidity()); uint256 currentBalance = _liquidity(); uint256 desiredBalance = _amount.mulDiv(MAX_SLIPPAGE - slippageLimit, MAX_SLIPPAGE); require(currentBalance >= desiredBalance, Errors.SlippageCheckFailed(desiredBalance, currentBalance)); } /// @notice Deposits the entire balance of `asset` this contract holds into the underlying strategy. /// @dev Child contract must implement the logic that will put the funds to work. function _deposit() internal virtual {} /// @notice Withdraws the specified `_amount` of `asset` from the underlying strategy. /// @dev Child contract must implement the logic that will withdraw the funds. /// @param _amount The amount of `asset` to withdraw. function _withdraw(uint256 _amount) internal virtual {} /// @notice Withdraws as much funds as possible from the underlying strategy. /// @dev Child contract must implement the logic to withdraw as much funds as possible. /// The withdraw process shouldn't have a slippage check, as it is in an emergency situation. /// function _emergencyWithdraw() internal virtual {} /// @dev Grants allowance for `asset` to the contracts used by the strategy adapter. /// It should be overridden by derived contracts to specify the exact contracts and amounts for the allowances. function _giveAllowances() internal virtual {} /// @dev Revokes all previously granted allowances for `asset`. /// It should be overridden by derived contracts to specify the exact contracts from which allowances are revoked. function _revokeAllowances() internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/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. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ 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]. * * CAUTION: See Security Considerations above. */ 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 v4.9.0) (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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [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://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/v0.8.0/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); } } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity 0.8.27; import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; import { Pausable } from "@openzeppelin/contracts/utils/Pausable.sol"; import { IStrategyAdapterAdminable } from "interfaces/infra/multistrategy/IStrategyAdapterAdminable.sol"; import { Errors } from "src/infra/libraries/Errors.sol"; abstract contract StrategyAdapterAdminable is IStrategyAdapterAdminable, Ownable, Pausable { /*////////////////////////////////////////////////////////////////////////// STORAGE //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapterAdminable mapping(address guardianAddress => bool isActive) public guardians; constructor(address _owner) Ownable(_owner) {} /*////////////////////////////////////////////////////////////////////////// MODIFIERS //////////////////////////////////////////////////////////////////////////*/ /// @notice Reverts if called by any account other than the owner, the manager, or a guardian. modifier onlyGuardian() { require(msg.sender == owner() || guardians[msg.sender], Errors.CallerNotGuardian(msg.sender)); _; } /*////////////////////////////////////////////////////////////////////////// USER-FACING NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @inheritdoc IStrategyAdapterAdminable function enableGuardian(address _guardian) external onlyOwner { guardians[_guardian] = true; emit GuardianEnabled(_guardian); } /// @inheritdoc IStrategyAdapterAdminable function revokeGuardian(address _guardian) external onlyOwner { guardians[_guardian] = false; emit GuardianRevoked(_guardian); } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; interface IStrategyAdapter { /// @notice Emitted when the slippage limit is set. /// @param slippageLimit The new slippage limit in basis points (BPS). event SlippageLimitSet(uint256 slippageLimit); /// @notice Returns the address of the multistrategy this Strategy belongs to. function multistrategy() external view returns (address); /// @notice Returns the address of the token used tby this strategy. /// @dev it should be the same as the token used by the multistrategy. function asset() external view returns (address); /// @notice Returns the identifier of this Strategy Adapter. function id() external view returns (string memory); /// @notice Returns the name of this Strategy Adapter. function name() external view returns (string memory); /// @notice Returns the current slippage limit in basis points (BPS). /// @dev The slippage limit is expressed in BPS, where 10,000 BPS equals 100%. /// @return The maximum allowable slippage in basis points. function slippageLimit() external view returns (uint256); /// @notice Sets the maximum allowable slippage limit for withdrawals. /// @dev Slippage limit is expressed in basis points (BPS), where 10,000 BPS equals 100%. /// This limit represents the tolerated difference between the expected withdrawal amount /// and the actual amount withdrawn from the strategy. /// @param _slippageLimit The maximum allowable slippage in basis points. function setSlippageLimit(uint256 _slippageLimit) external; /// @notice Requests a credit to the multistrategy. The multistrategy will send the /// maximum amount of credit available for this strategy. function requestCredit() external; /// @notice Sends a report to the Multistrategy of any gain or loss this strategy has /// made along an amount to be withdrawn and be used for debt repayment. /// @dev Only the owner can call it /// @param _amountToWithdraw Amount that will be withdrawn from the strategy and will /// be available for debt repayment. function sendReport(uint256 _amountToWithdraw) external; /// @notice Sends a report to the Multistrategy of any gain or loss this strategy has made. /// @dev This report wont withdraw any funds to repay debt to the Multistrategy. /// Only the multistrategy can call it function askReport() external; /// @notice Sends a report to the Multistrategy after this strategy has been panicked. /// Reporting any gains or loss based on the balance the could be emergency withdrawn /// @dev This function should only be called after a strategy has been retired. function sendReportPanicked() external; /// @notice Withdraws `asset` from the strategy. /// @dev Only callable by the multistrategy. /// @param _amount Amount of tokens to withdraw from the strategy. function withdraw(uint256 _amount) external returns (uint256); /// @notice Returns the amount of `asset` this strategy holds. function totalAssets() external view returns (uint256); /// @notice Returns the gain or loss this strategy has made since the last report. /// @dev The returned values will account for max slippage. function currentPnL() external view returns (uint256, uint256); /// @notice Starts the panic process for this strategy. /// The panic process consists of: /// - Withdraw as much funds as possible from the underlying strategy. /// - Report back to the multistrategy with the available funds. /// - Revoke the allowance that this adapter has given to the underlying strategy. /// - Pauses this contract. function panic() external; /// @notice Pauses the smart contract. /// @dev Functions that implement the `paused` modifier will revert when called. /// Guardians and Owner can call this function function pause() external; /// @notice Unpauses the smart contract. /// @dev Functions that implement the `paused` won't revert when called. /// Only the Owner can call this function function unpause() external; }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; import { IMultistrategyManageable } from "interfaces/infra/multistrategy/IMultistrategyManageable.sol"; interface IMultistrategy is IMultistrategyManageable { /// @notice Emitted when an account has made a deposit. /// @param amount Amount of asset that has been deposited. /// @param recipient Address that will receive the receipt tokens. event Deposit(uint256 amount, address indexed recipient); /// @notice Emitted when an account has made a withdraw. /// @param amount Amount of shares that have been withdrawn. event Withdraw(uint256 amount); /// @notice Emitted when a strategy has requested a credit. /// @param strategy Address of the strategy that requested the credit. /// @param amount Amount of credit that has been granted to the strategy. event CreditRequested(address indexed strategy, uint256 amount); /// @notice Emitted when a strategy has submitted a report. /// @param strategy Address of the strategy that has submitted the report. /// @param debtRepaid Amount of debt that has been repaid by the strategy. /// @param gain Amount of gain that the strategy has reported. /// @param loss Amount of loss that the strategy has reported. event StrategyReported(address indexed strategy, uint256 debtRepaid, uint256 gain, uint256 loss); /// @notice Timestamp of the last report made by a strategy. function lastReport() external view returns (uint256); /// @notice Amount of tokens that are locked as "locked profit" and can't be withdrawn. function lockedProfit() external view returns (uint256); /// @notice Rate at which the locked profit gets unlocked per second. function lockedProfitDegradation() external view returns (uint256); /// @notice Returns the value of a share in `asset` value. function pricePerShare() external view returns (uint256); /// @notice Returns the amount of tokens a strategy can borrow from this Multistrategy. /// @param strategy Address of the strategy we want to know the credit available for. function creditAvailable(address strategy) external view returns (uint256); /// @notice Returns the excess of debt a strategy currently holds. /// @param strategy Address of the strategy we want to know if it has any debt excess. function debtExcess(address strategy) external view returns (uint256); /// @notice Returns the total debt of `strategy`. /// @param strategy Address of the strategy we want to know the `totalDebt`. function strategyTotalDebt(address strategy) external view returns (uint256); /// @notice Returns the aggregate PnL of all strategies at max slippage. function currentPnL() external view returns (uint256, uint256); /// @notice Send the available credit of the caller to the caller. /// @dev Reverts if the caller is *NOT* an active strategy function requestCredit() external returns (uint256); /// @notice Report the profit or loss of a strategy along any debt the strategy is willing to pay back. /// @dev Can only be called by an active strategy. /// @param _debtRepayment Amount that the strategy will send back to the multistrategy as debt repayment. /// @param _gain Amount that the strategy has realized as a gain since the last report and will send it /// to this Multistrategy as earnings. /// @param _loss Amount that the strategy has realized as a loss since the last report. function strategyReport(uint256 _debtRepayment, uint256 _gain, uint256 _loss) external; /// @notice Emergency function to rescue tokens not related to the Multistrategy sent to the contract by mistake. /// @param token Address of the token that will be rescued. /// @param recipient Address of who will receive the tokens. function rescueToken(address token, address recipient) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is set to the address provided by the deployer. This can * later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { bool private _paused; /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); /** * @dev The operation failed because the contract is paused. */ error EnforcedPause(); /** * @dev The operation failed because the contract is not paused. */ error ExpectedPause(); /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { if (paused()) { revert EnforcedPause(); } } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { if (!paused()) { revert ExpectedPause(); } } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; interface IStrategyAdapterAdminable { /// @notice Emitted when a new guardian has been granted access. /// @param _guardian The address of the guardian. event GuardianEnabled(address indexed _guardian); /// @notice Emitted when a the access of a guardian has been revoked. /// @param _guardian The address of the guardian. event GuardianRevoked(address indexed _guardian); /// @notice List of addresses enabled as guardian. /// @param _guardian The address to check if it is a guardian. function guardians(address _guardian) external view returns (bool); /// @notice Enables an address to be a guardian. /// @dev Doesn't revert if: /// - guardian address is zero address. /// - guardian address is already enabled as guardian. /// @param _guardian The address of the guardian. function enableGuardian(address _guardian) external; /// @notice Revokes an address to be a guardian. /// @dev Doesn't revert if: /// - guardian address is zero address. /// - guardian address is already revoked. /// @param _guardian The address of the guardian. function revokeGuardian(address _guardian) external; }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; import { IMultistrategyAdminable } from "interfaces/infra/multistrategy/IMultistrategyAdminable.sol"; import { MStrat } from "src/types/DataTypes.sol"; interface IMultistrategyManageable is IMultistrategyAdminable { /// @notice Emitted when the protocol fee recipient is set. /// @param _protocolFeeRecipient The address that will receive the protocol fee. event ProtocolFeeRecipientSet(address indexed _protocolFeeRecipient); /// @notice Emitted when the performance fee is set. /// @param _performanceFee The new performance fee value. event PerformanceFeeSet(uint256 _performanceFee); /// @notice Emitted when the deposit limit is set. /// @param _depositLimit The new deposit limit value. event DepositLimitSet(uint256 _depositLimit); /// @notice Emitted when the slippage limit is set. /// @param _slippageLimit The new slippage limit value. event SlippageLimitSet(uint256 _slippageLimit); /// @notice Emitted when a new withdrawal order has been set. event WithdrawOrderSet(); /// @notice Emitted when the debt ratio for a specific strategy is set. /// @param _strategy The address of the strategy whose debt ratio was updated. /// @param _debtRatio The new debt ratio value for the specified strategy. event StrategyDebtRatioSet(address indexed _strategy, uint256 _debtRatio); /// @notice Emitted when the minimum debt delta for a specific strategy is set. /// @param _strategy The address of the strategy whose minimum debt delta was updated. /// @param _minDebtDelta The new minimum debt delta value for the specified strategy. event StrategyMinDebtDeltaSet(address indexed _strategy, uint256 _minDebtDelta); /// @notice Emitted when the maximum debt delta for a specific strategy is set. /// @param _strategy The address of the strategy whose maximum debt delta was updated. /// @param _maxDebtDelta The new maximum debt delta value for the specified strategy. event StrategyMaxDebtDeltaSet(address indexed _strategy, uint256 _maxDebtDelta); /// @notice Emitted when a new strategy is added. /// @param _strategy The address of the newly added strategy. event StrategyAdded(address indexed _strategy); /// @notice Emitted when a strategy is retired. /// @param _strategy The address of the retired strategy. event StrategyRetired(address indexed _strategy); /// @notice Emitted when a strategy is removed. /// @param _strategy The address of the removed strategy. event StrategyRemoved(address indexed _strategy); /// @notice Emitted when the deposits into this multistrategy are paused. event MultistrategyRetired(); /// @notice Address that will receive performance fee. function protocolFeeRecipient() external view returns (address); /// @notice Fee on the yield generated (in BPS). /// @dev Performance fee is taken on `strategyReport()` function on the Multistrategy contract. function performanceFee() external view returns (uint256); /// @notice Limit for total assets the multistrategy can hold. function depositLimit() external view returns (uint256); /// @notice Debt ratio of the multistrategy across all strategies (in BPS). /// @dev The debt ratio cannot exceed 10_000 BPS (100 %). function debtRatio() external view returns (uint256); /// @notice Amount of tokens that the strategies have borrowed in total. function totalDebt() external view returns (uint256); /// @notice Returns the current slippage limit in basis points (BPS). /// @dev The slippage limit is expressed in BPS, where 10,000 BPS equals 100%. function slippageLimit() external view returns (uint256); /// @notice Amount of active strategies. function activeStrategies() external view returns (uint8); /// @notice Returns true if multistrategy has been retired. function retired() external view returns (bool); /// @notice Returns the withdraw order. function getWithdrawOrder() external view returns (address[] memory); /// @notice Returns the strategy params of `strategy` /// @param _strategy Address of the strategy the it will returns the parameters of. function getStrategyParameters(address _strategy) external view returns (MStrat.StrategyParams calldata); /// @notice Sets the recipient address of the performance fee. /// @dev Emits a `SetProtocolFeeRecipient` event. /// @param _protocolFeeRecipient Address that will receive the fees. function setProtocolFeeRecipient(address _protocolFeeRecipient) external; /// @notice Sets the performance fee in BPS. /// @dev Reverts if `performanceFee` is above MAX_PERFORMANCE_FEE /// @dev Emits a `SetPerformanceFee` event. /// @param _performanceFee New performance fee. function setPerformanceFee(uint256 _performanceFee) external; /// @notice Sets the deposit limit. /// @dev Emits a `SetDepositLimit` event. /// @param _depositLimit New deposit limit. function setDepositLimit(uint256 _depositLimit) external; /// @notice Sets the slippage limit of this Multistrategy. /// @dev The slippage limit is expressed in BPS, where 10,000 BPS equals 100%. /// @param _slippageLimit New slippage limit. function setSlippageLimit(uint256 _slippageLimit) external; /// @notice Sets the withdraw order. First position in the array will be the first strategy that it will get the funds withdrawn /// @dev It will revert if a strategy in the array is not active or if the array contains duplicate addresses. /// @param _strategies Array of strategy addresses function setWithdrawOrder(address[] memory _strategies) external; /// @notice Adds a strategy to the multistrategy. /// @dev The strategy will be appended to `withdrawOrder`. /// @param _strategy The address of the strategy. /// @param _debtRatio The share of total assets in the Multistrategy this strategy will have access to. /// @param _minDebtDelta Lower limit on the increase of debt. /// @param _maxDebtDelta Upper limit on the increase of debt. function addStrategy( address _strategy, uint256 _debtRatio, uint256 _minDebtDelta, uint256 _maxDebtDelta ) external; /// @notice Sets the strategy debtRatio to 0, which prevents any further deposits into the strategy. /// @dev Retiring a strategy will set the approval of `asset` to the retired strategy to 0. /// @param _strategy The address of the strategy that will be retired. function retireStrategy(address _strategy) external; /// @notice Removes a strategy from `withdrawOrder`. /// @param _strategy The address of the strategy that will be removed. function removeStrategy(address _strategy) external; /// @notice Change the debt ratio of a strategy. /// @param _strategy Address of the strategy. /// @param _debtRatio New debt ratio. function setStrategyDebtRatio(address _strategy, uint256 _debtRatio) external; /// @notice Change the minimum amount of debt a strategy can take. /// @dev Used to limit the minimum amount of debt a strategy should take. /// Taking a small credit wouldn't be optimal gas-wise. /// @param _strategy Address of the strategy. /// @param _minDebtDelta Lower limit of the change of debt. function setStrategyMinDebtDelta(address _strategy, uint256 _minDebtDelta) external; /// @notice Change the maximum amount of debt a strategy can take at once. /// @dev Used to protect large debt repayments or withdraws. Risks are IL, or low liquidity. /// @param _strategy Address of the strategy. /// @param _maxDebtDelta Upper limit of the change of debt. function setStrategyMaxDebtDelta(address _strategy, uint256 _maxDebtDelta) external; /// @notice Retires the Multistrategy. End of Life. function retire() external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: GNU AGPLv3 pragma solidity ^0.8.27; /// @title IMultistrategyAdminable /// @notice Contract module that provides a 3 level access control mechanism, with an owner, a manager /// and a list of guardians that can be granted exclusive access to specific functions. /// The inheriting contract must set the initial owner and the initial manager in the constructor. interface IMultistrategyAdminable { /*////////////////////////////////////////////////////////////////////////// EVENTS //////////////////////////////////////////////////////////////////////////*/ /// @notice Emitted when a new manager is set. /// @param _manager The address of the new manager. event ManagerSet(address indexed _manager); /// @notice Emitted when a new guardian has been granted access. /// @param _guardian The address of the guardian. event GuardianEnabled(address indexed _guardian); /// @notice Emitted when a the access of a guardian has been revoked. /// @param _guardian The address of the guardian. event GuardianRevoked(address indexed _guardian); /*////////////////////////////////////////////////////////////////////////// CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice The address of the manager. function manager() external view returns (address); /// @notice List of addresses enabled as guardian. /// @param _guardian The address to check if it is a guardian. function guardians(address _guardian) external view returns (bool); /*////////////////////////////////////////////////////////////////////////// NON-CONSTANT FUNCTIONS //////////////////////////////////////////////////////////////////////////*/ /// @notice Sets the manager address. /// @dev Doesn't revert if: /// - manager address is zero address. /// - manager address is the same as previous manager address. /// @param _manager Address of the new manager. function setManager(address _manager) external; /// @notice Enables an address to be a guardian. /// @dev Doesn't revert if: /// - guardian address is zero address. /// - guardian address is already enabled as guardian. /// @param _guardian The address of the guardian. function enableGuardian(address _guardian) external; /// @notice Revokes an address to be a guardian. /// @dev Doesn't revert if: /// - guardian address is zero address. /// - guardian address is already revoked. /// @param _guardian The address of the guardian. function revokeGuardian(address _guardian) external; /// @notice Pauses the smart contract. /// @dev Functions that implement the `paused` modifier will revert when called. /// Guardians, Manager and Owner can call this function function pause() external; /// @notice Unpauses the smart contract. /// @dev Functions that implement the `paused` won't revert when called. /// Guardians, Manager and Owner can call this function function unpause() external; }
// SPDX-License-Identifier: MIT pragma solidity >=0.8.20; /// @notice Namespace for the structs used in `Multistrategy` library MStrat { /// @notice Struct that contains a strategy data /// @param activation Block.timestamp of when the strategy was activated. 0 means not active /// @param debtRatio Maximum amount the strategy can borrow from the Multistrategy (in BPS of total assets in a Multistrategy) /// @param lastReport /// @param minDebtDelta Lower limit on the increase or decrease of debt since last harvest /// @param maxDebtDelta Upper limit on the increase or decrease of debt since last harvest /// @param totalDebt Total debt that this strategy has /// @param totalGain Total gains that this strategy has realized /// @param totalLoss Total losses that this strategy has realized struct StrategyParams { uint256 activation; uint256 debtRatio; uint256 lastReport; uint256 minDebtDelta; uint256 maxDebtDelta; uint256 totalDebt; uint256 totalGain; uint256 totalLoss; } }
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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StrategyAdapterHarvestable.HarvestAddresses","name":"_harvestAddresses","type":"tuple"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_id","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"multAsset","type":"address"},{"internalType":"address","name":"stratAsset","type":"address"}],"name":"AssetMismatch","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"}],"name":"CallerNotGuardian","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"}],"name":"CallerNotMultistrategy","type":"error"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[{"internalType":"address","name":"rewardToken","type":"address"}],"name":"InvalidRewardToken","type":"error"},{"inputs":[],"name":"MathOverflowedMulDiv","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"SlippageCheckFailed","type":"error"},{"inputs":[{"internalType":"uint256","name":"slippageLimit","type":"uint256"}],"name":"SlippageLimitExceeded","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"caller","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountHarvested","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"totalAssets","type":"uint256"}],"name":"AdapterHarvested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_guardian","type":"address"}],"name":"GuardianEnabled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_guardian","type":"address"}],"name":"GuardianRevoked","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":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"slippageLimit","type":"uint256"}],"name":"SlippageLimitSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newSwapper","type":"address"}],"name":"SwapperUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"addReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"askReport","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"asset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentPnL","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_guardian","type":"address"}],"name":"enableGuardian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"guardianAddress","type":"address"}],"name":"guardians","outputs":[{"internalType":"bool","name":"isActive","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"harvest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"id","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"incentivesController","outputs":[{"internalType":"contract ISiloIncentivesController","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastHarvest","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"minimumAmounts","outputs":[{"internalType":"uint256","name":"minimumAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"multistrategy","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"panic","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"requestCredit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"resetRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_guardian","type":"address"}],"name":"revokeGuardian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_repayAmount","type":"uint256"}],"name":"sendReport","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"sendReportPanicked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_minAmount","type":"uint256"}],"name":"setRewardMinimumAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_slippageLimit","type":"uint256"}],"name":"setSlippageLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"slippageLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":[{"internalType":"address","name":"_swapper","type":"address"}],"name":"updateSwapper","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract IERC4626","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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)
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
-----Decoded View---------------
Arg [0] : _multistrategy (address): 0x901e3059Bf118AbC74d917440F0C08FC78eC0Aa6
Arg [1] : _asset (address): 0x29219dd400f2Bf60E5a23d13Be72B486D4038894
Arg [2] : _vault (address): 0x4E216C15697C1392fE59e1014B009505E05810Df
Arg [3] : _incentivesController (address): 0x0dd368Cd6D8869F2b21BA3Cb4fd7bA107a2e3752
Arg [4] : _harvestAddresses (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]
Arg [5] : _name (string): Silo S/USDC.e ID-8
Arg [6] : _id (string): SILO-V2
-----Encoded View---------------
12 Constructor Arguments found :
Arg [0] : 000000000000000000000000901e3059bf118abc74d917440f0c08fc78ec0aa6
Arg [1] : 00000000000000000000000029219dd400f2bf60e5a23d13be72b486d4038894
Arg [2] : 0000000000000000000000004e216c15697c1392fe59e1014b009505e05810df
Arg [3] : 0000000000000000000000000dd368cd6d8869f2b21ba3cb4fd7ba107a2e3752
Arg [4] : 000000000000000000000000108e823a26c5fb096d1f7c493809cce9015507a6
Arg [5] : 000000000000000000000000039e2fb66102314ce7b64ce5ce3e5183bc94ad38
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [9] : 53696c6f20532f555344432e652049442d380000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [11] : 53494c4f2d563200000000000000000000000000000000000000000000000000
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Multichain Portfolio | 31 Chains
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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.