Contract Name:
CommonReportTrigger
Contract Source Code:
File 1 of 1 : CommonReportTrigger
// SPDX-License-Identifier: AGPL-3.0
pragma solidity >=0.8.18 ^0.8.0;
// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
/**
* @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);
}
// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)
/**
* @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);
}
// lib/openzeppelin-contracts/contracts/utils/Context.sol
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
/**
* @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;
}
}
// lib/tokenized-strategy/src/interfaces/IBaseStrategy.sol
interface IBaseStrategy {
function tokenizedStrategyAddress() external view returns (address);
/*//////////////////////////////////////////////////////////////
IMMUTABLE FUNCTIONS
//////////////////////////////////////////////////////////////*/
function availableDepositLimit(
address _owner
) external view returns (uint256);
function availableWithdrawLimit(
address _owner
) external view returns (uint256);
function deployFunds(uint256 _assets) external;
function freeFunds(uint256 _amount) external;
function harvestAndReport() external returns (uint256);
function tendThis(uint256 _totalIdle) external;
function shutdownWithdraw(uint256 _amount) external;
function tendTrigger() external view returns (bool, bytes memory);
}
// src/utils/Governance.sol
contract Governance {
/// @notice Emitted when the governance address is updated.
event GovernanceTransferred(
address indexed previousGovernance,
address indexed newGovernance
);
modifier onlyGovernance() {
_checkGovernance();
_;
}
/// @notice Checks if the msg sender is the governance.
function _checkGovernance() internal view virtual {
require(governance == msg.sender, "!governance");
}
/// @notice Address that can set the default base fee and provider
address public governance;
constructor(address _governance) {
governance = _governance;
emit GovernanceTransferred(address(0), _governance);
}
/**
* @notice Sets a new address as the governance of the contract.
* @dev Throws if the caller is not current governance.
* @param _newGovernance The new governance address.
*/
function transferGovernance(
address _newGovernance
) external virtual onlyGovernance {
require(_newGovernance != address(0), "ZERO ADDRESS");
address oldGovernance = governance;
governance = _newGovernance;
emit GovernanceTransferred(oldGovernance, _newGovernance);
}
}
// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
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);
}
// lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC4626.sol)
/**
* @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
* https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
*
* _Available since v4.7._
*/
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);
}
// lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
// lib/yearn-vaults-v3/contracts/interfaces/IVault.sol
interface IVault is IERC4626 {
// STRATEGY EVENTS
event StrategyChanged(address indexed strategy, uint256 change_type);
event StrategyReported(
address indexed strategy,
uint256 gain,
uint256 loss,
uint256 current_debt,
uint256 protocol_fees,
uint256 total_fees,
uint256 total_refunds
);
// DEBT MANAGEMENT EVENTS
event DebtUpdated(
address indexed strategy,
uint256 current_debt,
uint256 new_debt
);
// ROLE UPDATES
event RoleSet(address indexed account, uint256 role);
event UpdateRoleManager(address indexed role_manager);
event UpdateAccountant(address indexed accountant);
event UpdateDefaultQueue(address[] new_default_queue);
event UpdateUseDefaultQueue(bool use_default_queue);
event UpdatedMaxDebtForStrategy(
address indexed sender,
address indexed strategy,
uint256 new_debt
);
event UpdateAutoAllocate(bool auto_allocate);
event UpdateDepositLimit(uint256 deposit_limit);
event UpdateMinimumTotalIdle(uint256 minimum_total_idle);
event UpdateProfitMaxUnlockTime(uint256 profit_max_unlock_time);
event DebtPurchased(address indexed strategy, uint256 amount);
event Shutdown();
struct StrategyParams {
uint256 activation;
uint256 last_report;
uint256 current_debt;
uint256 max_debt;
}
function FACTORY() external view returns (uint256);
function strategies(address) external view returns (StrategyParams memory);
function default_queue(uint256) external view returns (address);
function use_default_queue() external view returns (bool);
function auto_allocate() external view returns (bool);
function minimum_total_idle() external view returns (uint256);
function deposit_limit() external view returns (uint256);
function deposit_limit_module() external view returns (address);
function withdraw_limit_module() external view returns (address);
function accountant() external view returns (address);
function roles(address) external view returns (uint256);
function role_manager() external view returns (address);
function future_role_manager() external view returns (address);
function isShutdown() external view returns (bool);
function nonces(address) external view returns (uint256);
function initialize(
address,
string memory,
string memory,
address,
uint256
) external;
function setName(string memory) external;
function setSymbol(string memory) external;
function set_accountant(address new_accountant) external;
function set_default_queue(address[] memory new_default_queue) external;
function set_use_default_queue(bool) external;
function set_auto_allocate(bool) external;
function set_deposit_limit(uint256 deposit_limit) external;
function set_deposit_limit(
uint256 deposit_limit,
bool should_override
) external;
function set_deposit_limit_module(
address new_deposit_limit_module
) external;
function set_deposit_limit_module(
address new_deposit_limit_module,
bool should_override
) external;
function set_withdraw_limit_module(
address new_withdraw_limit_module
) external;
function set_minimum_total_idle(uint256 minimum_total_idle) external;
function setProfitMaxUnlockTime(
uint256 new_profit_max_unlock_time
) external;
function set_role(address account, uint256 role) external;
function add_role(address account, uint256 role) external;
function remove_role(address account, uint256 role) external;
function transfer_role_manager(address role_manager) external;
function accept_role_manager() external;
function unlockedShares() external view returns (uint256);
function pricePerShare() external view returns (uint256);
function get_default_queue() external view returns (address[] memory);
function process_report(
address strategy
) external returns (uint256, uint256);
function buy_debt(address strategy, uint256 amount) external;
function add_strategy(address new_strategy) external;
function revoke_strategy(address strategy) external;
function force_revoke_strategy(address strategy) external;
function update_max_debt_for_strategy(
address strategy,
uint256 new_max_debt
) external;
function update_debt(
address strategy,
uint256 target_debt
) external returns (uint256);
function update_debt(
address strategy,
uint256 target_debt,
uint256 max_loss
) external returns (uint256);
function shutdown_vault() external;
function totalIdle() external view returns (uint256);
function totalDebt() external view returns (uint256);
function apiVersion() external view returns (string memory);
function assess_share_of_unrealised_losses(
address strategy,
uint256 assets_needed
) external view returns (uint256);
function profitMaxUnlockTime() external view returns (uint256);
function fullProfitUnlockDate() external view returns (uint256);
function profitUnlockingRate() external view returns (uint256);
function lastProfitUpdate() external view returns (uint256);
//// NON-STANDARD ERC-4626 FUNCTIONS \\\\
function withdraw(
uint256 assets,
address receiver,
address owner,
uint256 max_loss
) external returns (uint256);
function withdraw(
uint256 assets,
address receiver,
address owner,
uint256 max_loss,
address[] memory strategies
) external returns (uint256);
function redeem(
uint256 shares,
address receiver,
address owner,
uint256 max_loss
) external returns (uint256);
function redeem(
uint256 shares,
address receiver,
address owner,
uint256 max_loss,
address[] memory strategies
) external returns (uint256);
function maxWithdraw(
address owner,
uint256 max_loss
) external view returns (uint256);
function maxWithdraw(
address owner,
uint256 max_loss,
address[] memory strategies
) external view returns (uint256);
function maxRedeem(
address owner,
uint256 max_loss
) external view returns (uint256);
function maxRedeem(
address owner,
uint256 max_loss,
address[] memory strategies
) external view returns (uint256);
//// NON-STANDARD ERC-20 FUNCTIONS \\\\
function DOMAIN_SEPARATOR() external view returns (bytes32);
function permit(
address owner,
address spender,
uint256 amount,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external returns (bool);
}
// lib/tokenized-strategy/src/interfaces/ITokenizedStrategy.sol
// Interface that implements the 4626 standard and the implementation functions
interface ITokenizedStrategy is IERC4626, IERC20Permit {
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
event StrategyShutdown();
event NewTokenizedStrategy(
address indexed strategy,
address indexed asset,
string apiVersion
);
event Reported(
uint256 profit,
uint256 loss,
uint256 protocolFees,
uint256 performanceFees
);
event UpdatePerformanceFeeRecipient(
address indexed newPerformanceFeeRecipient
);
event UpdateKeeper(address indexed newKeeper);
event UpdatePerformanceFee(uint16 newPerformanceFee);
event UpdateManagement(address indexed newManagement);
event UpdateEmergencyAdmin(address indexed newEmergencyAdmin);
event UpdateProfitMaxUnlockTime(uint256 newProfitMaxUnlockTime);
event UpdatePendingManagement(address indexed newPendingManagement);
/*//////////////////////////////////////////////////////////////
INITIALIZATION
//////////////////////////////////////////////////////////////*/
function initialize(
address _asset,
string memory _name,
address _management,
address _performanceFeeRecipient,
address _keeper
) external;
/*//////////////////////////////////////////////////////////////
NON-STANDARD 4626 OPTIONS
//////////////////////////////////////////////////////////////*/
function withdraw(
uint256 assets,
address receiver,
address owner,
uint256 maxLoss
) external returns (uint256);
function redeem(
uint256 shares,
address receiver,
address owner,
uint256 maxLoss
) external returns (uint256);
function maxWithdraw(
address owner,
uint256 /*maxLoss*/
) external view returns (uint256);
function maxRedeem(
address owner,
uint256 /*maxLoss*/
) external view returns (uint256);
/*//////////////////////////////////////////////////////////////
MODIFIER HELPERS
//////////////////////////////////////////////////////////////*/
function requireManagement(address _sender) external view;
function requireKeeperOrManagement(address _sender) external view;
function requireEmergencyAuthorized(address _sender) external view;
/*//////////////////////////////////////////////////////////////
KEEPERS FUNCTIONS
//////////////////////////////////////////////////////////////*/
function tend() external;
function report() external returns (uint256 _profit, uint256 _loss);
/*//////////////////////////////////////////////////////////////
CONSTANTS
//////////////////////////////////////////////////////////////*/
function MAX_FEE() external view returns (uint16);
function FACTORY() external view returns (address);
/*//////////////////////////////////////////////////////////////
GETTERS
//////////////////////////////////////////////////////////////*/
function apiVersion() external view returns (string memory);
function pricePerShare() external view returns (uint256);
function management() external view returns (address);
function pendingManagement() external view returns (address);
function keeper() external view returns (address);
function emergencyAdmin() external view returns (address);
function performanceFee() external view returns (uint16);
function performanceFeeRecipient() external view returns (address);
function fullProfitUnlockDate() external view returns (uint256);
function profitUnlockingRate() external view returns (uint256);
function profitMaxUnlockTime() external view returns (uint256);
function lastReport() external view returns (uint256);
function isShutdown() external view returns (bool);
function unlockedShares() external view returns (uint256);
/*//////////////////////////////////////////////////////////////
SETTERS
//////////////////////////////////////////////////////////////*/
function setPendingManagement(address) external;
function acceptManagement() external;
function setKeeper(address _keeper) external;
function setEmergencyAdmin(address _emergencyAdmin) external;
function setPerformanceFee(uint16 _performanceFee) external;
function setPerformanceFeeRecipient(
address _performanceFeeRecipient
) external;
function setProfitMaxUnlockTime(uint256 _profitMaxUnlockTime) external;
function setName(string calldata _newName) external;
function shutdownStrategy() external;
function emergencyWithdraw(uint256 _amount) external;
}
// lib/tokenized-strategy/src/interfaces/IStrategy.sol
interface IStrategy is IBaseStrategy, ITokenizedStrategy {}
// src/ReportTrigger/CommonReportTrigger.sol
interface ICustomStrategyTrigger {
function reportTrigger(
address _strategy
) external view returns (bool, bytes memory);
}
interface ICustomVaultTrigger {
function reportTrigger(
address _vault,
address _strategy
) external view returns (bool, bytes memory);
}
interface IBaseFee {
function basefee_global() external view returns (uint256);
}
/**
* @title Common Report Trigger
* @author Yearn.finance
* @dev This is a central contract that keepers can use
* to decide if Yearn V3 strategies should report profits as
* well as when a V3 Vaults should record a strategies profits.
*
* It allows for a simple default flow that most strategies
* and vaults can use for easy integration with a keeper network.
* However, it is also customizable by the strategy and vaults
* management to allow complete customization if desired.
*/
contract CommonReportTrigger is Governance {
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
event NewBaseFeeProvider(address indexed provider);
event UpdatedAcceptableBaseFee(uint256 acceptableBaseFee);
event UpdatedCustomStrategyTrigger(
address indexed strategy,
address indexed trigger
);
event UpdatedCustomStrategyBaseFee(
address indexed strategy,
uint256 acceptableBaseFee
);
event UpdatedCustomVaultTrigger(
address indexed vault,
address indexed strategy,
address indexed trigger
);
event UpdatedCustomVaultBaseFee(
address indexed vault,
address indexed strategy,
uint256 acceptableBaseFee
);
/*//////////////////////////////////////////////////////////////
STORAGE
//////////////////////////////////////////////////////////////*/
string public name = "Yearn Common Report Trigger";
// Address to retrieve the current base fee on the network from.
address public baseFeeProvider;
// Default base fee the trigger will accept for a trigger to return `true`.
uint256 public acceptableBaseFee;
// Mapping of a strategy address to the address of a custom report
// trigger if the strategies management wants to implement their own
// custom logic. If address(0) the default trigger will be used.
mapping(address => address) public customStrategyTrigger;
// Mapping of a strategy address to a custom base fee that will be
// accepted for the trigger to return true. If 0 the default
// `acceptableBaseFee` will be used.
mapping(address => uint256) public customStrategyBaseFee;
// Mapping of a vault address and one of its strategies address to a
// custom report trigger. If address(0) the default trigger will be used.
// vaultAddress => strategyAddress => customTriggerContract.
mapping(address => mapping(address => address)) public customVaultTrigger;
// Mapping of a vault address and one of its strategies address to a
// custom base fee that will be used for a trigger to return true. If
// returns 0 then the default `acceptableBaseFee` will be used.
// vaultAddress => strategyAddress => customBaseFee.
mapping(address => mapping(address => uint256)) public customVaultBaseFee;
constructor(address _governance) Governance(_governance) {}
/*//////////////////////////////////////////////////////////////
CUSTOM SETTERS
//////////////////////////////////////////////////////////////*/
/**
* @notice Set a custom report trigger contract for a strategy.
* @dev This gives the `management` of a specific strategy the option
* to enforce a custom report trigger for their strategy easily while
* still using this standard contract for keepers to read the trigger
* status from.
*
* The custom trigger contract only needs to implement the `reportTrigger`
* function to return true or false.
*
* @param _strategy The address of the strategy to set the trigger for.
* @param _trigger The address of the custom trigger contract.
*/
function setCustomStrategyTrigger(
address _strategy,
address _trigger
) external virtual {
require(msg.sender == IStrategy(_strategy).management(), "!authorized");
customStrategyTrigger[_strategy] = _trigger;
emit UpdatedCustomStrategyTrigger(_strategy, _trigger);
}
/**
* @notice Set a custom base fee for a specific strategy.
* @dev This can be set by a strategies `management` to increase or
* decrease the acceptable network base fee for a specific strategies
* trigger to return true.
*
* This can be used instead of a custom trigger contract.
*
* This will have no effect if a custom trigger is set for the strategy.
*
* @param _strategy The address of the strategy to customize.
* @param _baseFee The max acceptable network base fee.
*/
function setCustomStrategyBaseFee(
address _strategy,
uint256 _baseFee
) external virtual {
require(msg.sender == IStrategy(_strategy).management(), "!authorized");
customStrategyBaseFee[_strategy] = _baseFee;
emit UpdatedCustomStrategyBaseFee(_strategy, _baseFee);
}
/**
* @notice Set a custom report trigger contract for a vaults strategy.
* @dev This gives the management of a vault the option to enforce a
* custom report trigger for a specific strategy attached to the vault
* while still using this standard contract for keepers to read the
* trigger status from.
*
* The address calling must have the `REPORTING_MANAGER` role on the vault.
*
* The custom trigger contract only needs to implement the `reportTrigger`
* function to return true or false.
*
* @param _vault The address of the vault
* @param _strategy The address of the strategy to set the trigger for.
* @param _trigger The address of the custom trigger contract.
*/
function setCustomVaultTrigger(
address _vault,
address _strategy,
address _trigger
) external virtual {
// Check that the address has the REPORTING_MANAGER role on the vault.
uint256 mask = 32;
require((IVault(_vault).roles(msg.sender) & mask) != 0, "!authorized");
customVaultTrigger[_vault][_strategy] = _trigger;
emit UpdatedCustomVaultTrigger(_vault, _strategy, _trigger);
}
/**
* @notice Set a custom base fee for a vaults strategy.
* @dev This can be set by the vaults management to increase or
* decrease the acceptable network base fee for a specific strategies
* trigger to return true.
*
* This can be used instead of a custom trigger contract.
*
* This will have no effect if a custom trigger is set for the strategy.
*
* The address calling must have the `REPORTING_MANAGER` role on the vault.
*
* @param _vault The address of the vault.
* @param _strategy The address of the strategy to customize.
* @param _baseFee The max acceptable network base fee.
*/
function setCustomVaultBaseFee(
address _vault,
address _strategy,
uint256 _baseFee
) external virtual {
// Check that the address has the REPORTING_MANAGER role on the vault.
uint256 mask = 32;
require((IVault(_vault).roles(msg.sender) & mask) != 0, "!authorized");
customVaultBaseFee[_vault][_strategy] = _baseFee;
emit UpdatedCustomVaultBaseFee(_vault, _strategy, _baseFee);
}
/*//////////////////////////////////////////////////////////////
TRIGGERS
//////////////////////////////////////////////////////////////*/
/**
* @notice Returns wether or not a strategy is ready for a keeper to call `report`.
* @dev Will first check if a custom trigger is set. If not it will use
* the default trigger flow.
*
* @param _strategy The address of the strategy to check the trigger for.
* @return . Bool representing if the strategy is ready to report.
* @return . Bytes with either the calldata or reason why False.
*/
function strategyReportTrigger(
address _strategy
) external view virtual returns (bool, bytes memory) {
address _trigger = customStrategyTrigger[_strategy];
// If a custom trigger contract is set use that one.
if (_trigger != address(0)) {
return ICustomStrategyTrigger(_trigger).reportTrigger(_strategy);
}
// Return the default trigger logic.
return defaultStrategyReportTrigger(_strategy);
}
/**
* @notice The default trigger logic for a strategy.
* @dev This is kept in a separate function so it can still
* be used by custom triggers even if extra checks are needed
* first or after.
*
* This will also check if a custom acceptable base fee has been set
* by the strategies management.
*
* In order for the default flow to return true the strategy must:
*
* 1. Not be shutdown.
* 2. Have funds.
* 3. The current network base fee be below the `acceptableBaseFee`.
* 4. The time since the last report be > the strategies `profitMaxUnlockTime`.
*
* @param _strategy The address of the strategy to check the trigger for.
* @return . Bool representing if the strategy is ready to report.
* @return . Bytes with either the calldata or reason why False.
*/
function defaultStrategyReportTrigger(
address _strategy
) public view virtual returns (bool, bytes memory) {
// Cache the strategy instance.
IStrategy strategy = IStrategy(_strategy);
// Don't report if the strategy is shutdown.
if (strategy.isShutdown()) return (false, bytes("Shutdown"));
// Don't report if the strategy has no assets.
if (strategy.totalAssets() == 0) return (false, bytes("Zero Assets"));
// Check if a `baseFeeProvider` is set.
address _baseFeeProvider = baseFeeProvider;
if (_baseFeeProvider != address(0)) {
uint256 customAcceptableBaseFee = customStrategyBaseFee[_strategy];
// Use the custom base fee if set, otherwise use the default.
uint256 _acceptableBaseFee = customAcceptableBaseFee != 0
? customAcceptableBaseFee
: acceptableBaseFee;
// Don't report if the base fee is to high.
if (
IBaseFee(_baseFeeProvider).basefee_global() > _acceptableBaseFee
) return (false, bytes("Base Fee"));
}
return (
// Return true is the full profit unlock time has passed since the last report.
block.timestamp - strategy.lastReport() >
strategy.profitMaxUnlockTime(),
// Return the report function sig as the calldata.
abi.encodeWithSelector(strategy.report.selector)
);
}
/**
* @notice Return wether or not a report should be called on a vault for
* a specific strategy.
* @dev Will first check if a custom trigger is set. If not it will use
* the default trigger flow.
*
* @param _vault The address of the vault.
* @param _strategy The address of the strategy to report.
* @return . Bool if the strategy should report to the vault.
* @return . Bytes with either the calldata or reason why False.
*/
function vaultReportTrigger(
address _vault,
address _strategy
) external view virtual returns (bool, bytes memory) {
address _trigger = customVaultTrigger[_vault][_strategy];
// If a custom trigger contract is set use that.
if (_trigger != address(0)) {
return
ICustomVaultTrigger(_trigger).reportTrigger(_vault, _strategy);
}
// return the default trigger.
return defaultVaultReportTrigger(_vault, _strategy);
}
/**
* @notice The default trigger logic for a vault.
* @dev This is kept in a separate function so it can still
* be used by custom triggers even if extra checks are needed
* before or after.
*
* This will also check if a custom acceptable base fee has been set
* by the vault management for the `_strategy`.
*
* In order for the default flow to return true:
*
* 1. The vault must not be shutdown.
* 2. The strategy must be active and have debt allocated.
* 3. The current network base fee be below the `acceptableBaseFee`.
* 4. The time since the strategies last report be > the vaults `profitMaxUnlockTime`.
*
* @param _vault The address of the vault.
* @param _strategy The address of the strategy to report.
* @return . Bool if the strategy should report to the vault.
* @return . Bytes with either the calldata or reason why False.
*/
function defaultVaultReportTrigger(
address _vault,
address _strategy
) public view virtual returns (bool, bytes memory) {
// Cache the vault instance.
IVault vault = IVault(_vault);
// Don't report if the vault is shutdown.
if (vault.isShutdown()) return (false, bytes("Shutdown"));
// Cache the strategy parameters.
IVault.StrategyParams memory params = vault.strategies(_strategy);
// Don't report if the strategy is not active or has no funds.
if (params.activation == 0 || params.current_debt == 0)
return (false, bytes("Not Active"));
// Check if a `baseFeeProvider` is set.
address _baseFeeProvider = baseFeeProvider;
if (_baseFeeProvider != address(0)) {
uint256 customAcceptableBaseFee = customVaultBaseFee[_vault][
_strategy
];
// Use the custom base fee if set, otherwise use the default.
uint256 _acceptableBaseFee = customAcceptableBaseFee != 0
? customAcceptableBaseFee
: acceptableBaseFee;
// Don't report if the base fee is to high.
if (
IBaseFee(_baseFeeProvider).basefee_global() > _acceptableBaseFee
) return (false, bytes("Base Fee"));
}
return (
// Return true is the full profit unlock time has passed since the last report.
block.timestamp - params.last_report > vault.profitMaxUnlockTime(),
// Return the function selector and the strategy as the parameter to use.
abi.encodeCall(vault.process_report, _strategy)
);
}
/**
* @notice Return whether or not a strategy should be tended by a keeper.
* @dev This can be used as an easy keeper integration for any strategy that
* implements a tendTrigger.
*
* It is expected that a strategy implement all needed checks such as
* isShutdown, totalAssets > 0 and base fee checks within the trigger.
*
* @param _strategy Address of the strategy to check.
* @return . Bool if the strategy should be tended.
* @return . Bytes with the calldata.
*/
function strategyTendTrigger(
address _strategy
) external view virtual returns (bool, bytes memory) {
// Return the status of the tend trigger.
return IStrategy(_strategy).tendTrigger();
}
/**
* @notice Returns the current base fee from the provider.
* @dev Will return 0 if a base fee provider is not set.
* @return . The current base fee for the chain.
*/
function getCurrentBaseFee() public view virtual returns (uint256) {
address _baseFeeProvider = baseFeeProvider;
if (_baseFeeProvider == address(0)) return 0;
return IBaseFee(_baseFeeProvider).basefee_global();
}
/**
* @notice Returns wether or not the current base fee is acceptable
* based on the default `acceptableBaseFee`.
* @dev Can be used in custom triggers to easily still use this contracts
* fee provider and acceptableBaseFee. And makes it backwards compatible to V2.
*
* Will always return `true` if no `baseFeeProvider` is set.
*
* @return . IF the current base fee is acceptable.
*/
function isCurrentBaseFeeAcceptable() external view virtual returns (bool) {
return getCurrentBaseFee() <= acceptableBaseFee;
}
/*//////////////////////////////////////////////////////////////
GOVERNANCE FUNCTIONS
//////////////////////////////////////////////////////////////*/
/**
* @notice Sets the address used to pull the current network base fee.
* @dev Throws if the caller is not current governance.
* @param _baseFeeProvider The network's baseFeeProvider address.
*/
function setBaseFeeProvider(
address _baseFeeProvider
) external virtual onlyGovernance {
baseFeeProvider = _baseFeeProvider;
emit NewBaseFeeProvider(_baseFeeProvider);
}
/**
* @notice Sets the default acceptable current network base fee.
* @dev Throws if the caller is not current governance.
* @param _newAcceptableBaseFee The acceptable network base fee.
*/
function setAcceptableBaseFee(
uint256 _newAcceptableBaseFee
) external virtual onlyGovernance {
acceptableBaseFee = _newAcceptableBaseFee;
emit UpdatedAcceptableBaseFee(_newAcceptableBaseFee);
}
}