Contract Name:
ETHSTETHLevSwap
Contract Source Code:
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly {
codehash := extcodehash(account)
}
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, 'Address: insufficient balance');
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}('');
require(success, 'Address: unable to send value, recipient may have reverted');
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {IERC20} from './IERC20.sol';
interface IERC20Detailed is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @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 up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a / b + (a % b == 0 ? 0 : 1);
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, 'ReentrancyGuard: reentrant call');
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC20} from './IERC20.sol';
import {Address} from './Address.sol';
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
'SafeERC20: approve from non-zero to non-zero allowance'
);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function callOptionalReturn(IERC20 token, bytes memory data) private {
require(address(token).isContract(), 'SafeERC20: call to non-contract');
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, 'SafeERC20: low-level call failed');
if (returndata.length != 0) {
// Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), 'SafeERC20: ERC20 operation did not succeed');
}
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @title IFlashLoanReceiver interface
* @notice Interface for the IFlashLoanReceiver.
* @author Sturdy
* @dev implement this interface to develop a flashloan-compatible flashLoanReceiver contract
**/
interface IFlashLoanReceiver {
function executeOperation(
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata premiums,
address initiator,
bytes calldata params
) external returns (bool);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol';
/**
* @title IFlashLoanRecipient interface
* @notice Interface for the IFlashLoanRecipient.
* @author Sturdy
* @dev implement this interface to develop a flashloan-compatible IFlashLoanRecipient contract
**/
interface IFlashLoanRecipient {
/**
* @dev When `flashLoan` is called on the Vault, it invokes the `receiveFlashLoan` hook on the recipient.
*
* At the time of the call, the Vault will have transferred `amounts` for `tokens` to the recipient. Before this
* call returns, the recipient must have transferred `amounts` plus `feeAmounts` for each token back to the
* Vault, or else the entire flash loan will revert.
*
* `userData` is the same value passed in the `IVault.flashLoan` call.
*/
function receiveFlashLoan(
IERC20[] memory tokens,
uint256[] memory amounts,
uint256[] memory feeAmounts,
bytes memory userData
) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
interface IAaveFlashLoan {
/**
* @dev Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration.
* For further details please visit https://developers.aave.com
* @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface
* @param assets The addresses of the assets being flash-borrowed
* @param amounts The amounts amounts being flash-borrowed
* @param modes Types of the debt to open if the flash loan is not returned:
* 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver
* 1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
* 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
* @param onBehalfOf The address that will receive the debt in the case of using on `modes` 1 or 2
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
**/
function flashLoan(
address receiverAddress,
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata modes,
address onBehalfOf,
bytes calldata params,
uint16 referralCode
) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
import {IScaledBalanceToken} from './IScaledBalanceToken.sol';
import {IInitializableAToken} from './IInitializableAToken.sol';
import {ISturdyIncentivesController} from './ISturdyIncentivesController.sol';
interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken {
/**
* @dev Emitted after the mint action
* @param from The address performing the mint
* @param value The amount being
* @param index The new liquidity index of the reserve
**/
event Mint(address indexed from, uint256 value, uint256 index);
/**
* @dev Mints `amount` aTokens to `user`
* @param user The address receiving the minted tokens
* @param amount The amount of tokens getting minted
* @param index The new liquidity index of the reserve
* @return `true` if the the previous balance of the user was 0
*/
function mint(
address user,
uint256 amount,
uint256 index
) external payable returns (bool);
/**
* @dev Emitted after aTokens are burned
* @param from The owner of the aTokens, getting them burned
* @param target The address that will receive the underlying
* @param value The amount being burned
* @param index The new liquidity index of the reserve
**/
event Burn(address indexed from, address indexed target, uint256 value, uint256 index);
/**
* @dev Emitted during the transfer action
* @param from The user whose tokens are being transferred
* @param to The recipient
* @param value The amount being transferred
* @param index The new liquidity index of the reserve
**/
event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index);
/**
* @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`
* @param user The owner of the aTokens, getting them burned
* @param receiverOfUnderlying The address that will receive the underlying
* @param amount The amount being burned
* @param index The new liquidity index of the reserve
**/
function burn(
address user,
address receiverOfUnderlying,
uint256 amount,
uint256 index
) external payable;
/**
* @dev Mints aTokens to the reserve treasury
* @param amount The amount of tokens getting minted
* @param index The new liquidity index of the reserve
*/
function mintToTreasury(uint256 amount, uint256 index) external payable;
/**
* @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken
* @param from The address getting liquidated, current owner of the aTokens
* @param to The recipient
* @param value The amount of tokens getting transferred
**/
function transferOnLiquidation(
address from,
address to,
uint256 value
) external payable;
/**
* @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer
* assets in borrow(), withdraw() and flashLoan()
* @param user The recipient of the underlying
* @param amount The amount getting transferred
* @return The amount transferred
**/
function transferUnderlyingTo(address user, uint256 amount) external payable returns (uint256);
/**
* @dev Invoked to execute actions on the aToken side after a repayment.
* @param user The user executing the repayment
* @param amount The amount getting repaid
**/
function handleRepayment(address user, uint256 amount) external;
/**
* @dev Returns the address of the incentives controller contract
**/
function getIncentivesController() external view returns (ISturdyIncentivesController);
/**
* @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH)
**/
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
interface IBalancerVault {
// Pools
//
// There are three specialization settings for Pools, which allow for cheaper swaps at the cost of reduced
// functionality:
//
// - General: no specialization, suited for all Pools. IGeneralPool is used for swap request callbacks, passing the
// balance of all tokens in the Pool. These Pools have the largest swap costs (because of the extra storage reads),
// which increase with the number of registered tokens.
//
// - Minimal Swap Info: IMinimalSwapInfoPool is used instead of IGeneralPool, which saves gas by only passing the
// balance of the two tokens involved in the swap. This is suitable for some pricing algorithms, like the weighted
// constant product one popularized by Balancer V1. Swap costs are smaller compared to general Pools, and are
// independent of the number of registered tokens.
//
// - Two Token: only allows two tokens to be registered. This achieves the lowest possible swap gas cost. Like
// minimal swap info Pools, these are called via IMinimalSwapInfoPool.
enum PoolSpecialization {
GENERAL,
MINIMAL_SWAP_INFO,
TWO_TOKEN
}
/**
* @dev Returns a Pool's contract address and specialization setting.
*/
function getPool(bytes32 poolId) external view returns (address, PoolSpecialization);
// Swaps
//
// Users can swap tokens with Pools by calling the `swap` and `batchSwap` functions. To do this,
// they need not trust Pool contracts in any way: all security checks are made by the Vault. They must however be
// aware of the Pools' pricing algorithms in order to estimate the prices Pools will quote.
//
// The `swap` function executes a single swap, while `batchSwap` can perform multiple swaps in sequence.
// In each individual swap, tokens of one kind are sent from the sender to the Pool (this is the 'token in'),
// and tokens of another kind are sent from the Pool to the recipient in exchange (this is the 'token out').
// More complex swaps, such as one token in to multiple tokens out can be achieved by batching together
// individual swaps.
//
// There are two swap kinds:
// - 'given in' swaps, where the amount of tokens in (sent to the Pool) is known, and the Pool determines (via the
// `onSwap` hook) the amount of tokens out (to send to the recipient).
// - 'given out' swaps, where the amount of tokens out (received from the Pool) is known, and the Pool determines
// (via the `onSwap` hook) the amount of tokens in (to receive from the sender).
//
// Additionally, it is possible to chain swaps using a placeholder input amount, which the Vault replaces with
// the calculated output of the previous swap. If the previous swap was 'given in', this will be the calculated
// tokenOut amount. If the previous swap was 'given out', it will use the calculated tokenIn amount. These extended
// swaps are known as 'multihop' swaps, since they 'hop' through a number of intermediate tokens before arriving at
// the final intended token.
//
// In all cases, tokens are only transferred in and out of the Vault (or withdrawn from and deposited into Internal
// Balance) after all individual swaps have been completed, and the net token balance change computed. This makes
// certain swap patterns, such as multihops, or swaps that interact with the same token pair in multiple Pools, cost
// much less gas than they would otherwise.
//
// It also means that under certain conditions it is possible to perform arbitrage by swapping with multiple
// Pools in a way that results in net token movement out of the Vault (profit), with no tokens being sent in (only
// updating the Pool's internal accounting).
//
// To protect users from front-running or the market changing rapidly, they supply a list of 'limits' for each token
// involved in the swap, where either the maximum number of tokens to send (by passing a positive value) or the
// minimum amount of tokens to receive (by passing a negative value) is specified.
//
// Additionally, a 'deadline' timestamp can also be provided, forcing the swap to fail if it occurs after
// this point in time (e.g. if the transaction failed to be included in a block promptly).
//
// If interacting with Pools that hold WETH, it is possible to both send and receive ETH directly: the Vault will do
// the wrapping and unwrapping. To enable this mechanism, the IAsset sentinel value (the zero address) must be
// passed in the `assets` array instead of the WETH address. Note that it is possible to combine ETH and WETH in the
// same swap. Any excess ETH will be sent back to the caller (not the sender, which is relevant for relayers).
//
// Finally, Internal Balance can be used when either sending or receiving tokens.
enum SwapKind {
GIVEN_IN,
GIVEN_OUT
}
/**
* @dev Performs a swap with a single Pool.
*
* If the swap is 'given in' (the number of tokens to send to the Pool is known), it returns the amount of tokens
* taken from the Pool, which must be greater than or equal to `limit`.
*
* If the swap is 'given out' (the number of tokens to take from the Pool is known), it returns the amount of tokens
* sent to the Pool, which must be less than or equal to `limit`.
*
* Internal Balance usage and the recipient are determined by the `funds` struct.
*
* Emits a `Swap` event.
*/
function swap(
SingleSwap memory singleSwap,
FundManagement memory funds,
uint256 limit,
uint256 deadline
) external payable returns (uint256);
/**
* @dev Data for a single swap executed by `swap`. `amount` is either `amountIn` or `amountOut` depending on
* the `kind` value.
*
* `assetIn` and `assetOut` are either token addresses, or the IAsset sentinel value for ETH (the zero address).
* Note that Pools never interact with ETH directly: it will be wrapped to or unwrapped from WETH by the Vault.
*
* The `userData` field is ignored by the Vault, but forwarded to the Pool in the `onSwap` hook, and may be
* used to extend swap behavior.
*/
struct SingleSwap {
bytes32 poolId;
SwapKind kind;
address assetIn;
address assetOut;
uint256 amount;
bytes userData;
}
/**
* @dev All tokens in a swap are either sent from the `sender` account to the Vault, or from the Vault to the
* `recipient` account.
*
* If the caller is not `sender`, it must be an authorized relayer for them.
*
* If `fromInternalBalance` is true, the `sender`'s Internal Balance will be preferred, performing an ERC20
* transfer for the difference between the requested amount and the User's Internal Balance (if any). The `sender`
* must have allowed the Vault to use their tokens via `IERC20.approve()`. This matches the behavior of
* `joinPool`.
*
* If `toInternalBalance` is true, tokens will be deposited to `recipient`'s internal balance instead of
* transferred. This matches the behavior of `exitPool`.
*
* Note that ETH cannot be deposited to or withdrawn from Internal Balance: attempting to do so will trigger a
* revert.
*/
struct FundManagement {
address sender;
bool fromInternalBalance;
address payable recipient;
bool toInternalBalance;
}
/**
* @dev Called by users to exit a Pool, which transfers tokens from the Pool's balance to `recipient`. This will
* trigger custom Pool behavior, which will typically ask for something in return from `sender` - often tokenized
* Pool shares. The amount of tokens that can be withdrawn is limited by the Pool's `cash` balance (see
* `getPoolTokenInfo`).
*
* If the caller is not `sender`, it must be an authorized relayer for them.
*
* The `tokens` and `minAmountsOut` arrays must have the same length, and each entry in these indicates the minimum
* token amount to receive for each token contract. The amounts to send are decided by the Pool and not the Vault:
* it just enforces these minimums.
*
* If exiting a Pool that holds WETH, it is possible to receive ETH directly: the Vault will do the unwrapping. To
* enable this mechanism, the IAsset sentinel value (the zero address) must be passed in the `assets` array instead
* of the WETH address. Note that it is not possible to combine ETH and WETH in the same exit.
*
* `assets` must have the same length and order as the array returned by `getPoolTokens`. This prevents issues when
* interacting with Pools that register and deregister tokens frequently. If receiving ETH however, the array must
* be sorted *before* replacing the WETH address with the ETH sentinel value (the zero address), which means the
* final `assets` array might not be sorted. Pools with no registered tokens cannot be exited.
*
* If `toInternalBalance` is true, the tokens will be deposited to `recipient`'s Internal Balance. Otherwise,
* an ERC20 transfer will be performed. Note that ETH cannot be deposited to Internal Balance: attempting to
* do so will trigger a revert.
*
* `minAmountsOut` is the minimum amount of tokens the user expects to get out of the Pool, for each token in the
* `tokens` array. This array must match the Pool's registered tokens.
*
* This causes the Vault to call the `IBasePool.onExitPool` hook on the Pool's contract, where Pools implement
* their own custom logic. This typically requires additional information from the user (such as the expected number
* of Pool shares to return). This can be encoded in the `userData` argument, which is ignored by the Vault and
* passed directly to the Pool's contract.
*
* Emits a `PoolBalanceChanged` event.
*/
function exitPool(
bytes32 poolId,
address sender,
address payable recipient,
ExitPoolRequest memory request
) external;
struct ExitPoolRequest {
address[] assets;
uint256[] minAmountsOut;
bytes userData;
bool toInternalBalance;
}
enum ExitKind {
EXACT_BPT_IN_FOR_ONE_TOKEN_OUT,
EXACT_BPT_IN_FOR_TOKENS_OUT,
BPT_IN_FOR_EXACT_TOKENS_OUT
}
function joinPool(
bytes32 poolId,
address sender,
address recipient,
JoinPoolRequest memory request
) external payable;
struct JoinPoolRequest {
address[] assets;
uint256[] maxAmountsIn;
bytes userData;
bool fromInternalBalance;
}
enum JoinKind {
INIT,
EXACT_TOKENS_IN_FOR_BPT_OUT,
TOKEN_IN_FOR_EXACT_BPT_OUT
}
function getPoolTokenInfo(bytes32 poolId, IERC20 token)
external
view
returns (
uint256 cash,
uint256 managed,
uint256 lastChangeBlock,
address assetManager
);
function getPoolTokens(bytes32 poolId)
external
view
returns (
address[] memory tokens,
uint256[] memory balances,
uint256 lastChangeBlock
);
struct BatchSwapStep {
bytes32 poolId;
uint256 assetInIndex;
uint256 assetOutIndex;
uint256 amount;
bytes userData;
}
function batchSwap(
SwapKind kind,
BatchSwapStep[] memory swaps,
address[] memory assets,
FundManagement memory funds,
int256[] memory limits,
uint256 deadline
) external payable returns (int256[] memory);
function flashLoan(
address recipient,
IERC20[] memory tokens,
uint256[] memory amounts,
bytes memory userData
) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
interface IGeneralVault {
function pricePerShare() external view returns (uint256);
function withdrawOnLiquidation(address _asset, uint256 _amount) external returns (uint256);
function convertOnLiquidation(address _assetOut, uint256 _amountIn) external;
function processYield() external;
function setTreasuryInfo(address _treasury, uint256 _fee) external;
function depositCollateral(address _asset, uint256 _amount) external payable;
function depositCollateralFrom(
address _asset,
uint256 _amount,
address _user
) external payable;
function withdrawCollateral(
address _asset,
uint256 _amount,
uint256 _slippage,
address _to
) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {ILendingPool} from './ILendingPool.sol';
import {ISturdyIncentivesController} from './ISturdyIncentivesController.sol';
/**
* @title IInitializableAToken
* @notice Interface for the initialize function on AToken
* @author Sturdy, inspiration from Aave
**/
interface IInitializableAToken {
/**
* @dev Emitted when an aToken is initialized
* @param underlyingAsset The address of the underlying asset
* @param pool The address of the associated lending pool
* @param treasury The address of the treasury
* @param incentivesController The address of the incentives controller for this aToken
* @param aTokenDecimals the decimals of the underlying
* @param aTokenName the name of the aToken
* @param aTokenSymbol the symbol of the aToken
* @param params A set of encoded parameters for additional initialization
**/
event Initialized(
address indexed underlyingAsset,
address indexed pool,
address treasury,
address incentivesController,
uint8 aTokenDecimals,
string aTokenName,
string aTokenSymbol,
bytes params
);
/**
* @dev Initializes the aToken
* @param pool The address of the lending pool where this aToken will be used
* @param treasury The address of the Sturdy treasury, receiving the fees on this aToken
* @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)
* @param incentivesController The smart contract managing potential incentives distribution
* @param aTokenDecimals The decimals of the aToken, same as the underlying asset's
* @param aTokenName The name of the aToken
* @param aTokenSymbol The symbol of the aToken
*/
function initialize(
ILendingPool pool,
address treasury,
address underlyingAsset,
ISturdyIncentivesController incentivesController,
uint8 aTokenDecimals,
string calldata aTokenName,
string calldata aTokenSymbol,
bytes calldata params
) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {ILendingPoolAddressesProvider} from './ILendingPoolAddressesProvider.sol';
import {DataTypes} from '../protocol/libraries/types/DataTypes.sol';
interface ILendingPool {
/**
* @dev Emitted on deposit()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the deposit
* @param onBehalfOf The beneficiary of the deposit, receiving the aTokens
* @param amount The amount deposited
* @param referral The referral code used
**/
event Deposit(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referral
);
/**
* @dev Emitted on withdraw()
* @param reserve The address of the underlyng asset being withdrawn
* @param user The address initiating the withdrawal, owner of aTokens
* @param to Address that will receive the underlying
* @param amount The amount to be withdrawn
**/
event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount);
/**
* @dev Emitted on borrow() and flashLoan() when debt needs to be opened
* @param reserve The address of the underlying asset being borrowed
* @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
* initiator of the transaction on flashLoan()
* @param onBehalfOf The address that will be getting the debt
* @param amount The amount borrowed out
* @param borrowRateMode The rate mode: 1 for Stable, 2 for Variable
* @param borrowRate The numeric rate at which the user has borrowed
* @param referral The referral code used
**/
event Borrow(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint256 borrowRateMode,
uint256 borrowRate,
uint16 indexed referral
);
/**
* @dev Emitted on repay()
* @param reserve The address of the underlying asset of the reserve
* @param user The beneficiary of the repayment, getting his debt reduced
* @param repayer The address of the user initiating the repay(), providing the funds
* @param amount The amount repaid
**/
event Repay(
address indexed reserve,
address indexed user,
address indexed repayer,
uint256 amount
);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
**/
event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
**/
event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user);
/**
* @dev Emitted on flashLoan()
* @param target The address of the flash loan receiver contract
* @param initiator The address initiating the flash loan
* @param asset The address of the asset being flash borrowed
* @param amount The amount flash borrowed
* @param premium The fee flash borrowed
* @param referralCode The referral code used
**/
event FlashLoan(
address indexed target,
address indexed initiator,
address indexed asset,
uint256 amount,
uint256 premium,
uint16 referralCode
);
/**
* @dev Emitted when the pause is triggered.
*/
event Paused();
/**
* @dev Emitted when the pause is lifted.
*/
event Unpaused();
/**
* @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via
* LendingPoolCollateral manager using a DELEGATECALL
* This allows to have the events in the generated ABI for LendingPool.
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param liquidatedCollateralAmount The amount of collateral received by the liiquidator
* @param liquidator The address of the liquidator
* @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
**/
event LiquidationCall(
address indexed collateralAsset,
address indexed debtAsset,
address indexed user,
uint256 debtToCover,
uint256 liquidatedCollateralAmount,
address liquidator,
bool receiveAToken
);
/**
* @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared
* in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal,
* the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it
* gets added to the LendingPool ABI
* @param reserve The address of the underlying asset of the reserve
* @param liquidityRate The new liquidity rate
* @param stableBorrowRate The new stable borrow rate
* @param variableBorrowRate The new variable borrow rate
* @param liquidityIndex The new liquidity index
* @param variableBorrowIndex The new variable borrow index
**/
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User deposits 100 USDC and gets in return 100 aUSDC
* - Caller is anyone.
* @param asset The address of the underlying asset to deposit
* @param amount The amount to be deposited
* @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
* wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
* is a different wallet
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
**/
function deposit(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode
) external;
/**
* @dev Deposits an `amount` of underlying asset into the reserve for supplier from vault
* - Caller is only Vault which is registered in this contract
* @param asset The address of the underlying asset to deposit
* @param amount The amount to be deposited
**/
function depositYield(address asset, uint256 amount) external;
/**
* @dev Grab an Yield `amount` of underlying asset into the vault
* - Caller is only Vault which is registered in this contract
* @param asset The address of the underlying asset to get yield
* @param amount The yield amount
**/
function getYield(address asset, uint256 amount) external;
/**
* @dev Get underlying asset and aToken's total balance
* @param asset The address of the underlying asset
**/
function getTotalBalanceOfAssetPair(address asset) external view returns (uint256, uint256);
/**
* @dev Get total underlying asset which is borrowable
* and also list of underlying asset
**/
function getBorrowingAssetAndVolumes()
external
view
returns (
uint256,
uint256[] memory,
address[] memory,
uint256
);
/**
* @dev Register the vault address
* - To check if the caller is vault for some functions
* - Caller is only LendingPoolConfigurator
* @param _vaultAddress The address of the Vault
**/
function registerVault(address _vaultAddress) external payable;
/**
* @dev Unregister the vault address
* - To check if the caller is vault for some functions
* - Caller is only LendingPoolConfigurator
* @param _vaultAddress The address of the Vault
**/
function unregisterVault(address _vaultAddress) external payable;
/**
* @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
* - E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
* - Caller is anyone
* @param asset The address of the underlying asset to withdraw
* @param amount The underlying amount to be withdrawn
* - Send the value type(uint256).max in order to withdraw the whole aToken balance
* @param to Address that will receive the underlying, same as msg.sender if the user
* wants to receive it on his own wallet, or a different address if the beneficiary is a
* different wallet
* @return The final amount withdrawn
**/
function withdraw(
address asset,
uint256 amount,
address to
) external returns (uint256);
/**
* @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
* - E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
* - Caller is anyone
* @param asset The address of the underlying asset to withdraw
* @param amount The underlying amount to be withdrawn
* - Send the value type(uint256).max in order to withdraw the whole aToken balance
* @param from The address of user who is depositor of underlying asset
* @param to Address that will receive the underlying, same as msg.sender if the user
* wants to receive it on his own wallet, or a different address if the beneficiary is a
* different wallet
* @return The final amount withdrawn
**/
function withdrawFrom(
address asset,
uint256 amount,
address from,
address to
) external returns (uint256);
/**
* @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
* already deposited enough collateral, or he was given enough allowance by a credit delegator on the
* corresponding debt token (StableDebtToken or VariableDebtToken)
* - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
* and 100 stable/variable debt tokens, depending on the `interestRateMode`
* - Caller is anyone
* @param asset The address of the underlying asset to borrow
* @param amount The amount to be borrowed
* @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
* @param onBehalfOf Address of the user who will receive the debt. Should be the address of the borrower itself
* calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
* if he has been given credit delegation allowance
**/
function borrow(
address asset,
uint256 amount,
uint256 interestRateMode,
uint16 referralCode,
address onBehalfOf
) external;
/**
* @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
* - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
* - Caller is anyone
* @param asset The address of the borrowed underlying asset previously borrowed
* @param amount The amount to repay
* - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
* @param rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
* @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
* user calling the function if he wants to reduce/remove his own debt, or the address of any other
* other borrower whose debt should be removed
* @return The final amount repaid
**/
function repay(
address asset,
uint256 amount,
uint256 rateMode,
address onBehalfOf
) external returns (uint256);
/**
* @dev Allows depositors to enable/disable a specific deposited asset as collateral
* @param asset The address of the underlying asset deposited
* @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise
**/
function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;
/**
* @dev Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
* - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives
* a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
* - Caller is anyone
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
**/
function liquidationCall(
address collateralAsset,
address debtAsset,
address user,
uint256 debtToCover,
bool receiveAToken
) external;
/**
* @dev Returns the user account data across all the reserves
* @param user The address of the user
* @return totalCollateralETH the total collateral in ETH of the user
* @return totalDebtETH the total debt in ETH of the user
* @return availableBorrowsETH the borrowing power left of the user
* @return currentLiquidationThreshold the liquidation threshold of the user
* @return ltv the loan to value of the user
* @return healthFactor the current health factor of the user
**/
function getUserAccountData(address user)
external
view
returns (
uint256 totalCollateralETH,
uint256 totalDebtETH,
uint256 availableBorrowsETH,
uint256 currentLiquidationThreshold,
uint256 ltv,
uint256 healthFactor
);
/**
* @dev Initializes a reserve, activating it, assigning an aToken and debt tokens and an
* interest rate strategy
* - Only callable by the LendingPoolConfigurator contract
* - Caller is only LendingPoolConfigurator
* @param reserve The address of the underlying asset of the reserve
* @param yieldAddress The address of the underlying asset's yield contract of the reserve
* @param aTokenAddress The address of the aToken that will be assigned to the reserve
* @param stableDebtAddress The address of the StableDebtToken that will be assigned to the reserve
* @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve
* @param interestRateStrategyAddress The address of the interest rate strategy contract
**/
function initReserve(
address reserve,
address yieldAddress,
address aTokenAddress,
address stableDebtAddress,
address variableDebtAddress,
address interestRateStrategyAddress
) external payable;
/**
* @dev Updates the address of the interest rate strategy contract
* - Caller is only LendingPoolConfigurator
* @param reserve The address of the underlying asset of the reserve
* @param rateStrategyAddress The address of the interest rate strategy contract
**/
function setReserveInterestRateStrategyAddress(address reserve, address rateStrategyAddress)
external
payable;
/**
* @dev Sets the configuration bitmap of the reserve as a whole
* - Caller is only LendingPoolConfigurator
* @param reserve The address of the underlying asset of the reserve
* @param configuration The new configuration bitmap
**/
function setConfiguration(address reserve, uint256 configuration) external payable;
/**
* @dev Returns the configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The configuration of the reserve
**/
function getConfiguration(address asset)
external
view
returns (DataTypes.ReserveConfigurationMap memory);
/**
* @dev Returns the configuration of the user across all the reserves
* @param user The user address
* @return The configuration of the user
**/
function getUserConfiguration(address user)
external
view
returns (DataTypes.UserConfigurationMap memory);
/**
* @dev Returns the normalized income normalized income of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The reserve's normalized income
*/
function getReserveNormalizedIncome(address asset) external view returns (uint256);
/**
* @dev Returns the normalized variable debt per unit of asset
* @param asset The address of the underlying asset of the reserve
* @return The reserve normalized variable debt
*/
function getReserveNormalizedVariableDebt(address asset) external view returns (uint256);
/**
* @dev Returns the state and configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The state of the reserve
**/
function getReserveData(address asset) external view returns (DataTypes.ReserveData memory);
/**
* @dev Validates and finalizes an aToken transfer
* - Only callable by the overlying aToken of the `asset`
* - Caller is only aToken contract which is storing the underlying asset of depositors
* @param asset The address of the underlying asset of the aToken
* @param from The user from which the aTokens are transferred
* @param to The user receiving the aTokens
* @param amount The amount being transferred/withdrawn
* @param balanceFromAfter The aToken balance of the `from` user before the transfer
* @param balanceToBefore The aToken balance of the `to` user before the transfer
*/
function finalizeTransfer(
address asset,
address from,
address to,
uint256 amount,
uint256 balanceFromAfter,
uint256 balanceToBefore
) external;
/**
* @dev Returns the list of the initialized reserves
**/
function getReservesList() external view returns (address[] memory);
/**
* @dev Returns the cached LendingPoolAddressesProvider connected to this contract
**/
function getAddressesProvider() external view returns (ILendingPoolAddressesProvider);
/**
* @dev Set the _pause state of a reserve
* - Caller is only LendingPoolConfigurator
* @param val `true` to pause the reserve, `false` to un-pause it
*/
function setPause(bool val) external payable;
/**
* @dev Returns if the LendingPool is paused
*/
function paused() external view returns (bool);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @title LendingPoolAddressesProvider contract
* @dev Main registry of addresses part of or connected to the protocol, including permissioned roles
* - Acting also as factory of proxies and admin of those, so with right to change its implementations
* - Owned by the Sturdy Governance
* @author Sturdy, inspiration from Aave
**/
interface ILendingPoolAddressesProvider {
event MarketIdSet(string newMarketId);
event LendingPoolUpdated(address indexed newAddress);
event IncentiveControllerUpdated(address indexed newAddress);
event IncentiveTokenUpdated(address indexed newAddress);
event ConfigurationAdminUpdated(address indexed newAddress);
event EmergencyAdminUpdated(address indexed newAddress);
event LendingPoolConfiguratorUpdated(address indexed newAddress);
event LendingPoolCollateralManagerUpdated(address indexed newAddress);
event PriceOracleUpdated(address indexed newAddress);
event LendingRateOracleUpdated(address indexed newAddress);
event ProxyCreated(bytes32 id, address indexed newAddress);
event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy);
function getMarketId() external view returns (string memory);
function setMarketId(string calldata marketId) external payable;
function setAddress(bytes32 id, address newAddress) external payable;
function setAddressAsProxy(bytes32 id, address impl) external payable;
function getAddress(bytes32 id) external view returns (address);
function getLendingPool() external view returns (address);
function setLendingPoolImpl(address pool) external payable;
function getIncentiveController() external view returns (address);
function setIncentiveControllerImpl(address incentiveController) external payable;
function getIncentiveToken() external view returns (address);
function setIncentiveTokenImpl(address incentiveToken) external payable;
function getLendingPoolConfigurator() external view returns (address);
function setLendingPoolConfiguratorImpl(address configurator) external payable;
function getLendingPoolCollateralManager() external view returns (address);
function setLendingPoolCollateralManager(address manager) external payable;
function getPoolAdmin() external view returns (address);
function setPoolAdmin(address admin) external payable;
function getEmergencyAdmin() external view returns (address);
function setEmergencyAdmin(address admin) external payable;
function getPriceOracle() external view returns (address);
function setPriceOracle(address priceOracle) external payable;
function getLendingRateOracle() external view returns (address);
function setLendingRateOracle(address lendingRateOracle) external payable;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @title IPriceOracleGetter interface
* @notice Interface for the Sturdy price oracle.
**/
interface IPriceOracleGetter {
/**
* @dev returns the asset price in ETH
* @param asset the address of the asset
* @return the ETH price of the asset
**/
function getAssetPrice(address asset) external view returns (uint256);
/**
* @dev Validate the oracle
* @param asset the address of the asset
**/
function checkOracle(address asset) external;
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
interface IScaledBalanceToken {
/**
* @dev Returns the scaled balance of the user. The scaled balance is the sum of all the
* updated stored balance divided by the reserve's liquidity index at the moment of the update
* @param user The user whose balance is calculated
* @return The scaled balance of the user
**/
function scaledBalanceOf(address user) external view returns (uint256);
/**
* @dev Returns the scaled balance of the user and the scaled total supply.
* @param user The address of the user
* @return The scaled balance of the user
* @return The scaled balance and the scaled total supply
**/
function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);
/**
* @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index)
* @return The scaled total supply
**/
function scaledTotalSupply() external view returns (uint256);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
interface ISturdyIncentivesController {
event RewardsAccrued(address indexed user, uint256 amount);
event RewardsClaimed(address indexed user, address indexed to, uint256 amount);
event RewardsClaimed(
address indexed user,
address indexed to,
address indexed claimer,
uint256 amount
);
event ClaimerSet(address indexed user, address indexed claimer);
/*
* @dev Returns the configuration of the distribution for a certain asset
* @param asset The address of the reference asset of the distribution
* @return The asset index, the emission per second and the last updated timestamp
**/
function getAssetData(address asset)
external
view
returns (
uint256,
uint256,
uint256
);
/**
* @dev Whitelists an address to claim the rewards on behalf of another address
* @param user The address of the user
* @param claimer The address of the claimer
*/
function setClaimer(address user, address claimer) external payable;
/**
* @dev Returns the whitelisted claimer for a certain address (0x0 if not set)
* @param user The address of the user
* @return The claimer address
*/
function getClaimer(address user) external view returns (address);
/**
* @dev Configure assets for a certain rewards emission
* @param assets The assets to incentivize
* @param emissionsPerSecond The emission for each asset
*/
function configureAssets(address[] calldata assets, uint256[] calldata emissionsPerSecond)
external
payable;
/**
* @dev Called by the corresponding asset on any update that affects the rewards distribution
* @param user The address of the user
* @param userBalance The balance of the user of the asset in the lending pool
* @param totalSupply The total supply of the asset in the lending pool
**/
function handleAction(
address user,
uint256 totalSupply,
uint256 userBalance
) external;
/**
* @dev Returns the total of rewards of an user, already accrued + not yet accrued
* @param user The address of the user
* @return The rewards
**/
function getRewardsBalance(address[] calldata assets, address user)
external
view
returns (uint256);
/**
* @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards
* @param amount Amount of rewards to claim
* @param to Address that will be receiving the rewards
* @return Rewards claimed
**/
function claimRewards(
address[] calldata assets,
uint256 amount,
address to
) external returns (uint256);
/**
* @dev Claims reward for an user on behalf, on all the assets of the lending pool, accumulating the pending rewards. The caller must
* be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager
* @param amount Amount of rewards to claim
* @param user Address to check and claim rewards
* @param to Address that will be receiving the rewards
* @return Rewards claimed
**/
function claimRewardsOnBehalf(
address[] calldata assets,
uint256 amount,
address user,
address to
) external returns (uint256);
/**
* @dev returns the unclaimed rewards of the user
* @param user the address of the user
* @return the unclaimed user rewards
*/
function getUserUnclaimedRewards(address user) external view returns (uint256);
/**
* @dev returns the unclaimed rewards of the user
* @param user the address of the user
* @param asset The asset to incentivize
* @return the user index for the asset
*/
function getUserAssetData(address user, address asset) external view returns (uint256);
/**
* @dev for backward compatibility with previous implementation of the Incentives controller
*/
function REWARD_TOKEN() external view returns (address);
/**
* @dev for backward compatibility with previous implementation of the Incentives controller
*/
function PRECISION() external view returns (uint8);
/**
* @dev Gets the distribution end timestamp of the emissions
*/
function DISTRIBUTION_END() external view returns (uint256);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
interface IWETH {
function deposit() external payable;
function withdraw(uint256) external;
function approve(address guy, uint256 wad) external returns (bool);
function transferFrom(
address src,
address dst,
uint256 wad
) external returns (bool);
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {GeneralLevSwap} from '../GeneralLevSwap.sol';
import {IERC20} from '../../../dependencies/openzeppelin/contracts/IERC20.sol';
import {SafeERC20} from '../../../dependencies/openzeppelin/contracts/SafeERC20.sol';
import {IWETH} from '../../../misc/interfaces/IWETH.sol';
import {PercentageMath} from '../../libraries/math/PercentageMath.sol';
import {Errors} from '../../libraries/helpers/Errors.sol';
interface ICurvePool {
function coins(uint256) external view returns (address);
function add_liquidity(uint256[2] memory amounts, uint256 _min_mint_amount) external payable;
function calc_withdraw_one_coin(uint256 _token_amount, int128 i) external view returns (uint256);
function remove_liquidity_one_coin(
uint256 _token_amount,
int128 i,
uint256 _min_amount
) external returns (uint256);
}
contract ETHSTETHLevSwap is GeneralLevSwap {
using SafeERC20 for IERC20;
using PercentageMath for uint256;
ICurvePool public constant ETHSTETH = ICurvePool(0xDC24316b9AE028F1497c275EB9192a3Ea0f67022);
address internal constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
/**
* @dev Receive ETH
*/
receive() external payable {}
constructor(
address _asset,
address _vault,
address _provider
) GeneralLevSwap(_asset, _vault, _provider) {
ENABLED_BORROWING_ASSET[WETH] = true;
}
function getAvailableBorrowingAssets() external pure override returns (address[] memory assets) {
assets = new address[](1);
assets[0] = WETH;
}
/// borrowing asset -> ETHSTETH
function _swapTo(
address _borrowingAsset,
uint256 _amount,
uint256 _slippage
) internal override returns (uint256) {
require(_borrowingAsset == WETH, Errors.LS_INVALID_CONFIGURATION);
// WETH -> ETH
IWETH(WETH).withdraw(_amount);
uint256[2] memory amountsAdded;
amountsAdded[0] = _amount;
ETHSTETH.add_liquidity{value: _amount}(amountsAdded, 0);
uint256 collateralAmount = IERC20(COLLATERAL).balanceOf(address(this));
require(
collateralAmount >= _getMinAmount(_amount, _slippage, 1e18, _getAssetPrice(COLLATERAL)),
Errors.LS_SUPPLY_NOT_ALLOWED
);
return collateralAmount;
}
/// ETHSTETH -> borrowing asset
function _swapFrom(address _borrowingAsset, uint256 _slippage)
internal
override
returns (uint256)
{
require(_borrowingAsset == WETH, Errors.LS_INVALID_CONFIGURATION);
uint256 collateralAmount = IERC20(COLLATERAL).balanceOf(address(this));
uint256 minAmount = ETHSTETH.calc_withdraw_one_coin(collateralAmount, 0);
require(
minAmount >= _getMinAmount(collateralAmount, _slippage, _getAssetPrice(COLLATERAL), 1e18),
Errors.LS_SUPPLY_NOT_ALLOWED
);
uint256 ethAmount = ETHSTETH.remove_liquidity_one_coin(collateralAmount, 0, minAmount);
// ETH -> WETH
IWETH(WETH).deposit{value: ethAmount}();
return ethAmount;
}
function _getMinAmount(
uint256 _amountToSwap,
uint256 _slippage,
uint256 _fromAssetPrice,
uint256 _toAssetPrice
) internal view returns (uint256) {
return
((_amountToSwap * _fromAssetPrice) / _toAssetPrice).percentMul(
PercentageMath.PERCENTAGE_FACTOR - _slippage
);
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {IERC20} from '../../dependencies/openzeppelin/contracts/IERC20.sol';
import {IERC20Detailed} from '../../dependencies/openzeppelin/contracts/IERC20Detailed.sol';
import {SafeERC20} from '../../dependencies/openzeppelin/contracts/SafeERC20.sol';
import {ReentrancyGuard} from '../../dependencies/openzeppelin/contracts/ReentrancyGuard.sol';
import {IPriceOracleGetter} from '../../interfaces/IPriceOracleGetter.sol';
import {ILendingPool} from '../../interfaces/ILendingPool.sol';
import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
import {PercentageMath} from '../libraries/math/PercentageMath.sol';
import {IGeneralVault} from '../../interfaces/IGeneralVault.sol';
import {IAToken} from '../../interfaces/IAToken.sol';
import {IFlashLoanReceiver} from '../../flashloan/interfaces/IFlashLoanReceiver.sol';
import {IFlashLoanRecipient} from '../../flashloan/interfaces/IFlashLoanRecipient.sol';
import {IAaveFlashLoan} from '../../interfaces/IAaveFlashLoan.sol';
import {IBalancerVault} from '../../interfaces/IBalancerVault.sol';
import {DataTypes} from '../libraries/types/DataTypes.sol';
import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
import {Math} from '../../dependencies/openzeppelin/contracts/Math.sol';
import {WadRayMath} from '../libraries/math/WadRayMath.sol';
import {Errors} from '../libraries/helpers/Errors.sol';
abstract contract GeneralLevSwap is IFlashLoanReceiver, IFlashLoanRecipient, ReentrancyGuard {
using SafeERC20 for IERC20;
using PercentageMath for uint256;
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
using WadRayMath for uint256;
enum FlashLoanType {
AAVE,
BALANCER
}
uint256 private constant SAFE_BUFFER = 5000;
uint256 private constant USE_VARIABLE_DEBT = 2;
address private constant AAVE_LENDING_POOL_ADDRESS = 0x7937D4799803FbBe595ed57278Bc4cA21f3bFfCB;
address internal constant BALANCER_VAULT = 0xBA12222222228d8Ba445958a75a0704d566BF2C8;
address public immutable COLLATERAL; // The address of external asset
uint256 public immutable DECIMALS; // The collateral decimals
address public immutable VAULT; // The address of vault
ILendingPoolAddressesProvider internal immutable PROVIDER;
IPriceOracleGetter internal immutable ORACLE;
ILendingPool internal immutable LENDING_POOL;
mapping(address => bool) internal ENABLED_BORROWING_ASSET;
//1 == not inExec
//2 == inExec;
//setting default to 1 to save some gas.
uint256 private _balancerFlashLoanLock = 1;
/**
* @param _asset The external asset ex. wFTM
* @param _vault The deployed vault address
* @param _provider The deployed AddressProvider
*/
constructor(
address _asset,
address _vault,
address _provider
) {
require(
_asset != address(0) && _provider != address(0) && _vault != address(0),
Errors.LS_INVALID_CONFIGURATION
);
COLLATERAL = _asset;
DECIMALS = IERC20Detailed(_asset).decimals();
VAULT = _vault;
PROVIDER = ILendingPoolAddressesProvider(_provider);
ORACLE = IPriceOracleGetter(PROVIDER.getPriceOracle());
LENDING_POOL = ILendingPool(PROVIDER.getLendingPool());
}
/**
* Get available assets to borrow
*/
function getAvailableBorrowingAssets() external pure virtual returns (address[] memory) {
return new address[](0);
}
function _getAssetPrice(address _asset) internal view returns (uint256) {
return ORACLE.getAssetPrice(_asset);
}
/**
* This function is called after your contract has received the flash loaned amount
* overriding executeOperation() in IFlashLoanReceiver
*/
function executeOperation(
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata premiums,
address initiator,
bytes calldata params
) external override returns (bool) {
require(initiator == address(this), Errors.LS_INVALID_CONFIGURATION);
require(msg.sender == AAVE_LENDING_POOL_ADDRESS, Errors.LS_INVALID_CONFIGURATION);
require(assets.length == amounts.length, Errors.LS_INVALID_CONFIGURATION);
require(assets.length == premiums.length, Errors.LS_INVALID_CONFIGURATION);
require(amounts[0] > 0, Errors.LS_INVALID_CONFIGURATION);
require(assets[0] != address(0), Errors.LS_INVALID_CONFIGURATION);
_executeOperation(assets[0], amounts[0], premiums[0], params);
// approve the Aave LendingPool contract allowance to *pull* the owed amount
IERC20(assets[0]).safeApprove(AAVE_LENDING_POOL_ADDRESS, 0);
IERC20(assets[0]).safeApprove(AAVE_LENDING_POOL_ADDRESS, amounts[0] + premiums[0]);
return true;
}
/**
* This function is called after your contract has received the flash loaned amount
* overriding receiveFlashLoan() in IFlashLoanRecipient
*/
function receiveFlashLoan(
IERC20[] memory tokens,
uint256[] memory amounts,
uint256[] memory feeAmounts,
bytes memory userData
) external override {
require(msg.sender == BALANCER_VAULT, Errors.LS_INVALID_CONFIGURATION);
require(_balancerFlashLoanLock == 2, Errors.LS_INVALID_CONFIGURATION);
require(tokens.length == amounts.length, Errors.LS_INVALID_CONFIGURATION);
require(tokens.length == feeAmounts.length, Errors.LS_INVALID_CONFIGURATION);
require(amounts[0] > 0, Errors.LS_INVALID_CONFIGURATION);
require(address(tokens[0]) != address(0), Errors.LS_INVALID_CONFIGURATION);
_balancerFlashLoanLock = 1;
_executeOperation(address(tokens[0]), amounts[0], feeAmounts[0], userData);
// send tokens to Balancer vault contract
IERC20(tokens[0]).safeTransfer(msg.sender, amounts[0] + feeAmounts[0]);
}
function _executeOperation(
address asset,
uint256 borrowAmount,
uint256 fee,
bytes memory params
) internal {
// parse params
(bool isEnterPosition, uint256 slippage, uint256 amount, address user, address sAsset) = abi
.decode(params, (bool, uint256, uint256, address, address));
require(slippage > 0, Errors.LS_INVALID_CONFIGURATION);
require(amount > 0, Errors.LS_INVALID_CONFIGURATION);
require(user != address(0), Errors.LS_INVALID_CONFIGURATION);
if (isEnterPosition) {
_enterPositionWithFlashloan(slippage, amount, user, asset, borrowAmount, fee);
} else {
require(sAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
_withdrawWithFlashloan(slippage, amount, user, sAsset, asset, borrowAmount);
}
}
/**
* @param _principal - The amount of collateral
* @param _leverage - Extra leverage value and must be greater than 0, ex. 300% = 300_00
* _principal + _principal * _leverage should be used as collateral
* @param _slippage - Slippage valule to borrow enough asset by flashloan,
* Must be greater than 0%.
* Borrowing amount = _principal * _leverage * _slippage
* @param _borrowingAsset - The borrowing asset address when leverage works
*/
function enterPositionWithFlashloan(
uint256 _principal,
uint256 _leverage,
uint256 _slippage,
address _borrowingAsset,
FlashLoanType _flashLoanType
) external nonReentrant {
require(_principal != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_leverage != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_slippage != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_leverage < 900_00, Errors.LS_INVALID_CONFIGURATION);
require(_borrowingAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(ENABLED_BORROWING_ASSET[_borrowingAsset], Errors.LS_BORROWING_ASSET_NOT_SUPPORTED);
require(IERC20(COLLATERAL).balanceOf(msg.sender) >= _principal, Errors.LS_SUPPLY_NOT_ALLOWED);
IERC20(COLLATERAL).safeTransferFrom(msg.sender, address(this), _principal);
_leverageWithFlashloan(
msg.sender,
_principal,
_leverage,
_slippage,
_borrowingAsset,
_flashLoanType
);
}
/**
* @param _repayAmount - The amount of repay
* @param _requiredAmount - The amount of collateral
* @param _slippage - The slippage of the every withdrawal amount. 1% = 100
* @param _borrowingAsset - The borrowing asset address when leverage works
* @param _sAsset - staked asset address of collateral internal asset
*/
function withdrawWithFlashloan(
uint256 _repayAmount,
uint256 _requiredAmount,
uint256 _slippage,
address _borrowingAsset,
address _sAsset,
FlashLoanType _flashLoanType
) external nonReentrant {
require(_repayAmount > 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_requiredAmount > 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_slippage > 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_borrowingAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(ENABLED_BORROWING_ASSET[_borrowingAsset], Errors.LS_BORROWING_ASSET_NOT_SUPPORTED);
require(_sAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(
_sAsset ==
LENDING_POOL.getReserveData(IAToken(_sAsset).UNDERLYING_ASSET_ADDRESS()).aTokenAddress,
Errors.LS_INVALID_CONFIGURATION
);
uint256 debtAmount = _getDebtAmount(
LENDING_POOL.getReserveData(_borrowingAsset).variableDebtTokenAddress,
msg.sender
);
uint256[] memory amounts = new uint256[](1);
amounts[0] = Math.min(_repayAmount, debtAmount);
bytes memory params = abi.encode(
false, /*leavePosition*/
_slippage,
_requiredAmount,
msg.sender,
_sAsset
);
if (_flashLoanType == FlashLoanType.AAVE) {
// 0 means revert the transaction if not validated
uint256[] memory modes = new uint256[](1);
modes[0] = 0;
address[] memory assets = new address[](1);
assets[0] = _borrowingAsset;
IAaveFlashLoan(AAVE_LENDING_POOL_ADDRESS).flashLoan(
address(this),
assets,
amounts,
modes,
address(this),
params,
0
);
} else {
require(_balancerFlashLoanLock == 1, Errors.LS_INVALID_CONFIGURATION);
IERC20[] memory assets = new IERC20[](1);
assets[0] = IERC20(_borrowingAsset);
_balancerFlashLoanLock = 2;
IBalancerVault(BALANCER_VAULT).flashLoan(address(this), assets, amounts, params);
}
// remaining borrowing asset -> collateral
_swapTo(_borrowingAsset, IERC20(_borrowingAsset).balanceOf(address(this)), _slippage);
uint256 collateralAmount = IERC20(COLLATERAL).balanceOf(address(this));
if (collateralAmount > _requiredAmount) {
_supply(collateralAmount - _requiredAmount, msg.sender);
collateralAmount = _requiredAmount;
}
// finally deliver the collateral to user
IERC20(COLLATERAL).safeTransfer(msg.sender, collateralAmount);
}
function _enterPositionWithFlashloan(
uint256 _slippage,
uint256 _minAmount,
address _user,
address _borrowingAsset,
uint256 _borrowedAmount,
uint256 _fee
) internal {
//swap borrowing asset to collateral
uint256 collateralAmount = _swapTo(_borrowingAsset, _borrowedAmount, _slippage);
require(collateralAmount >= _minAmount, Errors.LS_SUPPLY_FAILED);
//deposit collateral
_supply(collateralAmount, _user);
//borrow borrowing asset
_borrow(_borrowingAsset, _borrowedAmount + _fee, _user);
}
function _withdrawWithFlashloan(
uint256 _slippage,
uint256 _requiredAmount,
address _user,
address _sAsset,
address _borrowingAsset,
uint256 _borrowedAmount
) internal {
// repay
_repay(_borrowingAsset, _borrowedAmount, _user);
// withdraw collateral
// get internal asset address
address internalAsset = IAToken(_sAsset).UNDERLYING_ASSET_ADDRESS();
// get reserve info of internal asset
DataTypes.ReserveConfigurationMap memory configuration = LENDING_POOL.getConfiguration(
internalAsset
);
(, uint256 assetLiquidationThreshold, , , ) = configuration.getParamsMemory();
require(assetLiquidationThreshold != 0, Errors.LS_INVALID_CONFIGURATION);
// get user info
(
uint256 totalCollateralETH,
uint256 totalDebtETH,
,
uint256 currentLiquidationThreshold,
,
) = LENDING_POOL.getUserAccountData(_user);
uint256 withdrawalAmountETH = (((totalCollateralETH * currentLiquidationThreshold) /
PercentageMath.PERCENTAGE_FACTOR -
totalDebtETH) * PercentageMath.PERCENTAGE_FACTOR) / assetLiquidationThreshold;
uint256 withdrawalAmount = Math.min(
IERC20(_sAsset).balanceOf(_user),
(withdrawalAmountETH * (10**DECIMALS)) / _getAssetPrice(COLLATERAL)
);
require(withdrawalAmount >= _requiredAmount, Errors.LS_SUPPLY_NOT_ALLOWED);
IERC20(_sAsset).safeTransferFrom(_user, address(this), withdrawalAmount);
_remove(withdrawalAmount, _slippage);
// collateral -> borrowing asset
_swapFrom(_borrowingAsset, _slippage);
}
function _supply(uint256 _amount, address _user) internal {
IERC20(COLLATERAL).safeApprove(VAULT, _amount);
IGeneralVault(VAULT).depositCollateralFrom(COLLATERAL, _amount, _user);
}
function _remove(uint256 _amount, uint256 _slippage) internal {
IGeneralVault(VAULT).withdrawCollateral(COLLATERAL, _amount, _slippage, address(this));
}
function _getDebtAmount(address _variableDebtTokenAddress, address _user)
internal
view
returns (uint256)
{
return IERC20(_variableDebtTokenAddress).balanceOf(_user);
}
function _borrow(
address _borrowingAsset,
uint256 _amount,
address borrower
) internal {
LENDING_POOL.borrow(_borrowingAsset, _amount, USE_VARIABLE_DEBT, 0, borrower);
}
function _repay(
address _borrowingAsset,
uint256 _amount,
address borrower
) internal {
IERC20(_borrowingAsset).safeApprove(address(LENDING_POOL), 0);
IERC20(_borrowingAsset).safeApprove(address(LENDING_POOL), _amount);
uint256 paybackAmount = LENDING_POOL.repay(
_borrowingAsset,
_amount,
USE_VARIABLE_DEBT,
borrower
);
require(paybackAmount > 0, Errors.LS_REPAY_FAILED);
}
function _swapTo(
address,
uint256,
uint256
) internal virtual returns (uint256);
function _swapFrom(address, uint256) internal virtual returns (uint256);
/**
* @param _zappingAsset - The borrowable asset address which will zap into lp token
* @param _principal - The amount of collateral
* @param _slippage - Slippage value to zap deposit, Must be greater than 0%.
*/
function zapDeposit(
address _zappingAsset,
uint256 _principal,
uint256 _slippage
) external nonReentrant {
require(_principal != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_zappingAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(ENABLED_BORROWING_ASSET[_zappingAsset], Errors.LS_BORROWING_ASSET_NOT_SUPPORTED);
require(
IERC20(_zappingAsset).balanceOf(msg.sender) >= _principal,
Errors.LS_SUPPLY_NOT_ALLOWED
);
IERC20(_zappingAsset).safeTransferFrom(msg.sender, address(this), _principal);
uint256 suppliedAmount = _swapTo(_zappingAsset, _principal, _slippage);
// supply to LP
_supply(suppliedAmount, msg.sender);
}
/**
* @param _zappingAsset - The borrowable asset address which will zap into lp token
* @param _principal - The amount of the borrowable asset
* @param _leverage - Extra leverage value and must be greater than 0, ex. 300% = 300_00
* principal + principal * leverage should be used as collateral
* @param _slippage - Slippage value to borrow enough asset by flashloan,
* Must be greater than 0%.
* Borrowing amount = principal * leverage * slippage
* @param _borrowAsset - The borrowing asset address when leverage works
*/
function zapLeverageWithFlashloan(
address _zappingAsset,
uint256 _principal,
uint256 _leverage,
uint256 _slippage,
address _borrowAsset,
FlashLoanType _flashLoanType
) external nonReentrant {
require(_principal != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_leverage != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_slippage != 0, Errors.LS_SWAP_AMOUNT_NOT_GT_0);
require(_leverage < 900_00, Errors.LS_INVALID_CONFIGURATION);
require(_borrowAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(_zappingAsset != address(0), Errors.LS_INVALID_CONFIGURATION);
require(ENABLED_BORROWING_ASSET[_zappingAsset], Errors.LS_BORROWING_ASSET_NOT_SUPPORTED);
require(ENABLED_BORROWING_ASSET[_borrowAsset], Errors.LS_BORROWING_ASSET_NOT_SUPPORTED);
require(
IERC20(_zappingAsset).balanceOf(msg.sender) >= _principal,
Errors.LS_SUPPLY_NOT_ALLOWED
);
IERC20(_zappingAsset).safeTransferFrom(msg.sender, address(this), _principal);
uint256 collateralAmount = _swapTo(_zappingAsset, _principal, _slippage);
_leverageWithFlashloan(
msg.sender,
collateralAmount,
_leverage,
_slippage,
_borrowAsset,
_flashLoanType
);
}
function _leverageWithFlashloan(
address _user,
uint256 _principal,
uint256 _leverage,
uint256 _slippage,
address _borrowAsset,
FlashLoanType _flashLoanType
) internal {
uint256 borrowAssetDecimals = IERC20Detailed(_borrowAsset).decimals();
uint256[] memory amounts = new uint256[](1);
amounts[0] = ((((_principal * _getAssetPrice(COLLATERAL)) / 10**DECIMALS) *
10**borrowAssetDecimals) / _getAssetPrice(_borrowAsset)).percentMul(_leverage).percentMul(
PercentageMath.PERCENTAGE_FACTOR + _slippage
);
uint256 minCollateralAmount = _principal.percentMul(
PercentageMath.PERCENTAGE_FACTOR + _leverage
);
bytes memory params = abi.encode(
true, /*enterPosition*/
_slippage,
minCollateralAmount,
_user,
address(0)
);
if (_flashLoanType == FlashLoanType.AAVE) {
// 0 means revert the transaction if not validated
uint256[] memory modes = new uint256[](1);
modes[0] = 0;
address[] memory assets = new address[](1);
assets[0] = _borrowAsset;
IAaveFlashLoan(AAVE_LENDING_POOL_ADDRESS).flashLoan(
address(this),
assets,
amounts,
modes,
address(this),
params,
0
);
} else {
require(_balancerFlashLoanLock == 1, Errors.LS_INVALID_CONFIGURATION);
IERC20[] memory assets = new IERC20[](1);
assets[0] = IERC20(_borrowAsset);
_balancerFlashLoanLock = 2;
IBalancerVault(BALANCER_VAULT).flashLoan(address(this), assets, amounts, params);
}
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {Errors} from '../helpers/Errors.sol';
import {DataTypes} from '../types/DataTypes.sol';
/**
* @title ReserveConfiguration library
* @author Sturdy, inspiration from Aave
* @notice Implements the bitmap logic to handle the reserve configuration
*/
library ReserveConfiguration {
uint256 constant LTV_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000; // prettier-ignore
uint256 constant LIQUIDATION_THRESHOLD_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFF; // prettier-ignore
uint256 constant LIQUIDATION_BONUS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFF; // prettier-ignore
uint256 constant DECIMALS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFF; // prettier-ignore
uint256 constant ACTIVE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFF; // prettier-ignore
uint256 constant FROZEN_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFF; // prettier-ignore
uint256 constant BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFF; // prettier-ignore
uint256 constant STABLE_BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFF; // prettier-ignore
uint256 constant RESERVE_FACTOR_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFF; // prettier-ignore
uint256 constant COLLATERAL_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFF; // prettier-ignore
/// @dev For the LTV, the start bit is 0 (up to 15), hence no bitshifting is needed
uint256 constant LIQUIDATION_THRESHOLD_START_BIT_POSITION = 16;
uint256 constant LIQUIDATION_BONUS_START_BIT_POSITION = 32;
uint256 constant RESERVE_DECIMALS_START_BIT_POSITION = 48;
uint256 constant IS_ACTIVE_START_BIT_POSITION = 56;
uint256 constant IS_FROZEN_START_BIT_POSITION = 57;
uint256 constant BORROWING_ENABLED_START_BIT_POSITION = 58;
uint256 constant STABLE_BORROWING_ENABLED_START_BIT_POSITION = 59;
uint256 constant COLLATERAL_ENABLED_START_BIT_POSITION = 60;
uint256 constant RESERVE_FACTOR_START_BIT_POSITION = 64;
uint256 constant MAX_VALID_LTV = 65535;
uint256 constant MAX_VALID_LIQUIDATION_THRESHOLD = 65535;
uint256 constant MAX_VALID_LIQUIDATION_BONUS = 65535;
uint256 constant MAX_VALID_DECIMALS = 255;
uint256 constant MAX_VALID_RESERVE_FACTOR = 65535;
/**
* @dev Sets the Loan to Value of the reserve
* @param self The reserve configuration
* @param ltv the new ltv
**/
function setLtv(DataTypes.ReserveConfigurationMap memory self, uint256 ltv) internal pure {
require(ltv <= MAX_VALID_LTV, Errors.RC_INVALID_LTV);
self.data = (self.data & LTV_MASK) | ltv;
}
/**
* @dev Gets the Loan to Value of the reserve
* @param self The reserve configuration
* @return The loan to value
**/
function getLtv(DataTypes.ReserveConfigurationMap storage self) internal view returns (uint256) {
return self.data & ~LTV_MASK;
}
/**
* @dev Sets the liquidation threshold of the reserve
* @param self The reserve configuration
* @param threshold The new liquidation threshold
**/
function setLiquidationThreshold(DataTypes.ReserveConfigurationMap memory self, uint256 threshold)
internal
pure
{
require(threshold <= MAX_VALID_LIQUIDATION_THRESHOLD, Errors.RC_INVALID_LIQ_THRESHOLD);
self.data =
(self.data & LIQUIDATION_THRESHOLD_MASK) |
(threshold << LIQUIDATION_THRESHOLD_START_BIT_POSITION);
}
/**
* @dev Gets the liquidation threshold of the reserve
* @param self The reserve configuration
* @return The liquidation threshold
**/
function getLiquidationThreshold(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (uint256)
{
return (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION;
}
/**
* @dev Sets the liquidation bonus of the reserve
* @param self The reserve configuration
* @param bonus The new liquidation bonus
**/
function setLiquidationBonus(DataTypes.ReserveConfigurationMap memory self, uint256 bonus)
internal
pure
{
require(bonus <= MAX_VALID_LIQUIDATION_BONUS, Errors.RC_INVALID_LIQ_BONUS);
self.data =
(self.data & LIQUIDATION_BONUS_MASK) |
(bonus << LIQUIDATION_BONUS_START_BIT_POSITION);
}
/**
* @dev Gets the liquidation bonus of the reserve
* @param self The reserve configuration
* @return The liquidation bonus
**/
function getLiquidationBonus(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (uint256)
{
return (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION;
}
/**
* @dev Sets the decimals of the underlying asset of the reserve
* @param self The reserve configuration
* @param decimals The decimals
**/
function setDecimals(DataTypes.ReserveConfigurationMap memory self, uint256 decimals)
internal
pure
{
require(decimals <= MAX_VALID_DECIMALS, Errors.RC_INVALID_DECIMALS);
self.data = (self.data & DECIMALS_MASK) | (decimals << RESERVE_DECIMALS_START_BIT_POSITION);
}
/**
* @dev Gets the decimals of the underlying asset of the reserve
* @param self The reserve configuration
* @return The decimals of the asset
**/
function getDecimals(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (uint256)
{
return (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION;
}
/**
* @dev Sets the active state of the reserve
* @param self The reserve configuration
* @param active The active state
**/
function setActive(DataTypes.ReserveConfigurationMap memory self, bool active) internal pure {
self.data =
(self.data & ACTIVE_MASK) |
(uint256(active ? 1 : 0) << IS_ACTIVE_START_BIT_POSITION);
}
/**
* @dev Gets the active state of the reserve
* @param self The reserve configuration
* @return The active state
**/
function getActive(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) {
return (self.data & ~ACTIVE_MASK) != 0;
}
/**
* @dev Sets the frozen state of the reserve
* @param self The reserve configuration
* @param frozen The frozen state
**/
function setFrozen(DataTypes.ReserveConfigurationMap memory self, bool frozen) internal pure {
self.data =
(self.data & FROZEN_MASK) |
(uint256(frozen ? 1 : 0) << IS_FROZEN_START_BIT_POSITION);
}
/**
* @dev Gets the frozen state of the reserve
* @param self The reserve configuration
* @return The frozen state
**/
function getFrozen(DataTypes.ReserveConfigurationMap storage self) internal view returns (bool) {
return (self.data & ~FROZEN_MASK) != 0;
}
/**
* @dev Enables or disables borrowing on the reserve
* @param self The reserve configuration
* @param enabled True if the borrowing needs to be enabled, false otherwise
**/
function setBorrowingEnabled(DataTypes.ReserveConfigurationMap memory self, bool enabled)
internal
pure
{
self.data =
(self.data & BORROWING_MASK) |
(uint256(enabled ? 1 : 0) << BORROWING_ENABLED_START_BIT_POSITION);
}
/**
* @dev Gets the borrowing state of the reserve
* @param self The reserve configuration
* @return The borrowing state
**/
function getBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (bool)
{
return (self.data & ~BORROWING_MASK) != 0;
}
/**
* @dev Sets the collateral state of the reserve
* @param self The reserve configuration
* @param enabled The collateral state
**/
function setCollateralEnabled(DataTypes.ReserveConfigurationMap memory self, bool enabled)
internal
pure
{
self.data =
(self.data & COLLATERAL_MASK) |
(uint256(enabled ? 1 : 0) << COLLATERAL_ENABLED_START_BIT_POSITION);
}
/**
* @dev Gets the collateral state of the reserve
* @param self The reserve configuration
* @return The collateral state
**/
function getCollateralEnabled(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (bool)
{
return (self.data & ~COLLATERAL_MASK) != 0;
}
/**
* @dev Enables or disables stable rate borrowing on the reserve
* @param self The reserve configuration
* @param enabled True if the stable rate borrowing needs to be enabled, false otherwise
**/
function setStableRateBorrowingEnabled(
DataTypes.ReserveConfigurationMap memory self,
bool enabled
) internal pure {
self.data =
(self.data & STABLE_BORROWING_MASK) |
(uint256(enabled ? 1 : 0) << STABLE_BORROWING_ENABLED_START_BIT_POSITION);
}
/**
* @dev Gets the stable rate borrowing state of the reserve
* @param self The reserve configuration
* @return The stable rate borrowing state
**/
function getStableRateBorrowingEnabled(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (bool)
{
return (self.data & ~STABLE_BORROWING_MASK) != 0;
}
/**
* @dev Sets the reserve factor of the reserve
* @param self The reserve configuration
* @param reserveFactor The reserve factor
**/
function setReserveFactor(DataTypes.ReserveConfigurationMap memory self, uint256 reserveFactor)
internal
pure
{
require(reserveFactor <= MAX_VALID_RESERVE_FACTOR, Errors.RC_INVALID_RESERVE_FACTOR);
self.data =
(self.data & RESERVE_FACTOR_MASK) |
(reserveFactor << RESERVE_FACTOR_START_BIT_POSITION);
}
/**
* @dev Gets the reserve factor of the reserve
* @param self The reserve configuration
* @return The reserve factor
**/
function getReserveFactor(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (uint256)
{
return (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION;
}
/**
* @dev Gets the configuration flags of the reserve
* @param self The reserve configuration
* @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled, collateral enabled
**/
function getFlags(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (
bool,
bool,
bool,
bool,
bool
)
{
uint256 dataLocal = self.data;
return (
(dataLocal & ~ACTIVE_MASK) != 0,
(dataLocal & ~FROZEN_MASK) != 0,
(dataLocal & ~BORROWING_MASK) != 0,
(dataLocal & ~STABLE_BORROWING_MASK) != 0,
(dataLocal & ~COLLATERAL_MASK) != 0
);
}
/**
* @dev Gets the configuration paramters of the reserve
* @param self The reserve configuration
* @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals
**/
function getParams(DataTypes.ReserveConfigurationMap storage self)
internal
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256
)
{
uint256 dataLocal = self.data;
return (
dataLocal & ~LTV_MASK,
(dataLocal & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION,
(dataLocal & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION,
(dataLocal & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION,
(dataLocal & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION
);
}
/**
* @dev Gets the configuration paramters of the reserve from a memory object
* @param self The reserve configuration
* @return The state params representing ltv, liquidation threshold, liquidation bonus, the reserve decimals
**/
function getParamsMemory(DataTypes.ReserveConfigurationMap memory self)
internal
pure
returns (
uint256,
uint256,
uint256,
uint256,
uint256
)
{
return (
self.data & ~LTV_MASK,
(self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION,
(self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION,
(self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION,
(self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION
);
}
/**
* @dev Gets the configuration flags of the reserve from a memory object
* @param self The reserve configuration
* @return The state flags representing active, frozen, borrowing enabled, stableRateBorrowing enabled, collateral enabled
**/
function getFlagsMemory(DataTypes.ReserveConfigurationMap memory self)
internal
pure
returns (
bool,
bool,
bool,
bool,
bool
)
{
return (
(self.data & ~ACTIVE_MASK) != 0,
(self.data & ~FROZEN_MASK) != 0,
(self.data & ~BORROWING_MASK) != 0,
(self.data & ~STABLE_BORROWING_MASK) != 0,
(self.data & ~COLLATERAL_MASK) != 0
);
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
/**
* @title Errors library
* @author Sturdy, inspiration from Aave
* @notice Defines the error messages emitted by the different contracts of the Sturdy protocol
* @dev Error messages prefix glossary:
* - VL = ValidationLogic
* - MATH = Math libraries
* - CT = Common errors between tokens (AToken, VariableDebtToken and StableDebtToken)
* - AT = AToken
* - SDT = StableDebtToken
* - VDT = VariableDebtToken
* - LP = LendingPool
* - LPAPR = LendingPoolAddressesProviderRegistry
* - LPC = LendingPoolConfiguration
* - RL = ReserveLogic
* - LPCM = LendingPoolCollateralManager
* - P = Pausable
*/
library Errors {
//common errors
string internal constant CALLER_NOT_POOL_ADMIN = '33'; // 'The caller must be the pool admin'
string internal constant BORROW_ALLOWANCE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small
//contract specific errors
string internal constant VL_INVALID_AMOUNT = '1'; // 'Amount must be greater than 0'
string internal constant VL_NO_ACTIVE_RESERVE = '2'; // 'Action requires an active reserve'
string internal constant VL_RESERVE_FROZEN = '3'; // 'Action cannot be performed because the reserve is frozen'
string internal constant VL_CURRENT_AVAILABLE_LIQUIDITY_NOT_ENOUGH = '4'; // 'The current liquidity is not enough'
string internal constant VL_NOT_ENOUGH_AVAILABLE_USER_BALANCE = '5'; // 'User cannot withdraw more than the available balance'
string internal constant VL_TRANSFER_NOT_ALLOWED = '6'; // 'Transfer cannot be allowed.'
string internal constant VL_BORROWING_NOT_ENABLED = '7'; // 'Borrowing is not enabled'
string internal constant VL_INVALID_INTEREST_RATE_MODE_SELECTED = '8'; // 'Invalid interest rate mode selected'
string internal constant VL_COLLATERAL_BALANCE_IS_0 = '9'; // 'The collateral balance is 0'
string internal constant VL_HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = '10'; // 'Health factor is lesser than the liquidation threshold'
string internal constant VL_COLLATERAL_CANNOT_COVER_NEW_BORROW = '11'; // 'There is not enough collateral to cover a new borrow'
string internal constant VL_STABLE_BORROWING_NOT_ENABLED = '12'; // stable borrowing not enabled
string internal constant VL_COLLATERAL_SAME_AS_BORROWING_CURRENCY = '13'; // collateral is (mostly) the same currency that is being borrowed
string internal constant VL_AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = '14'; // 'The requested amount is greater than the max loan size in stable rate mode
string internal constant VL_NO_DEBT_OF_SELECTED_TYPE = '15'; // 'for repayment of stable debt, the user needs to have stable debt, otherwise, he needs to have variable debt'
string internal constant VL_NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = '16'; // 'To repay on behalf of an user an explicit amount to repay is needed'
string internal constant VL_NO_STABLE_RATE_LOAN_IN_RESERVE = '17'; // 'User does not have a stable rate loan in progress on this reserve'
string internal constant VL_NO_VARIABLE_RATE_LOAN_IN_RESERVE = '18'; // 'User does not have a variable rate loan in progress on this reserve'
string internal constant VL_UNDERLYING_BALANCE_NOT_GREATER_THAN_0 = '19'; // 'The underlying balance needs to be greater than 0'
string internal constant VL_DEPOSIT_ALREADY_IN_USE = '20'; // 'User deposit is already being used as collateral'
string internal constant LP_NOT_ENOUGH_STABLE_BORROW_BALANCE = '21'; // 'User does not have any stable rate loan for this reserve'
string internal constant LP_INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = '22'; // 'Interest rate rebalance conditions were not met'
string internal constant LP_LIQUIDATION_CALL_FAILED = '23'; // 'Liquidation call failed'
string internal constant LP_NOT_ENOUGH_LIQUIDITY_TO_BORROW = '24'; // 'There is not enough liquidity available to borrow'
string internal constant LP_REQUESTED_AMOUNT_TOO_SMALL = '25'; // 'The requested amount is too small for a FlashLoan.'
string internal constant LP_INCONSISTENT_PROTOCOL_ACTUAL_BALANCE = '26'; // 'The actual balance of the protocol is inconsistent'
string internal constant LP_CALLER_NOT_LENDING_POOL_CONFIGURATOR = '27'; // 'The caller of the function is not the lending pool configurator'
string internal constant LP_INCONSISTENT_FLASHLOAN_PARAMS = '28';
string internal constant CT_CALLER_MUST_BE_LENDING_POOL = '29'; // 'The caller of this function must be a lending pool'
string internal constant CT_CANNOT_GIVE_ALLOWANCE_TO_HIMSELF = '30'; // 'User cannot give allowance to himself'
string internal constant CT_TRANSFER_AMOUNT_NOT_GT_0 = '31'; // 'Transferred amount needs to be greater than zero'
string internal constant RL_RESERVE_ALREADY_INITIALIZED = '32'; // 'Reserve has already been initialized'
string internal constant LPC_RESERVE_LIQUIDITY_NOT_0 = '34'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_ATOKEN_POOL_ADDRESS = '35'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_STABLE_DEBT_TOKEN_POOL_ADDRESS = '36'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_VARIABLE_DEBT_TOKEN_POOL_ADDRESS = '37'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_STABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '38'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_VARIABLE_DEBT_TOKEN_UNDERLYING_ADDRESS = '39'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_ADDRESSES_PROVIDER_ID = '40'; // 'The liquidity of the reserve needs to be 0'
string internal constant LPC_INVALID_CONFIGURATION = '75'; // 'Invalid risk parameters for the reserve'
string internal constant LPC_CALLER_NOT_EMERGENCY_ADMIN = '76'; // 'The caller must be the emergency admin'
string internal constant LPAPR_PROVIDER_NOT_REGISTERED = '41'; // 'Provider is not registered'
string internal constant LPCM_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '42'; // 'Health factor is not below the threshold'
string internal constant LPCM_COLLATERAL_CANNOT_BE_LIQUIDATED = '43'; // 'The collateral chosen cannot be liquidated'
string internal constant LPCM_SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = '44'; // 'User did not borrow the specified currency'
string internal constant LPCM_NOT_ENOUGH_LIQUIDITY_TO_LIQUIDATE = '45'; // "There isn't enough liquidity available to liquidate"
string internal constant LPCM_NO_ERRORS = '46'; // 'No errors'
string internal constant LP_INVALID_FLASHLOAN_MODE = '47'; //Invalid flashloan mode selected
string internal constant MATH_MULTIPLICATION_OVERFLOW = '48';
string internal constant MATH_ADDITION_OVERFLOW = '49';
string internal constant MATH_DIVISION_BY_ZERO = '50';
string internal constant RL_LIQUIDITY_INDEX_OVERFLOW = '51'; // Liquidity index overflows uint128
string internal constant RL_VARIABLE_BORROW_INDEX_OVERFLOW = '52'; // Variable borrow index overflows uint128
string internal constant RL_LIQUIDITY_RATE_OVERFLOW = '53'; // Liquidity rate overflows uint128
string internal constant RL_VARIABLE_BORROW_RATE_OVERFLOW = '54'; // Variable borrow rate overflows uint128
string internal constant RL_STABLE_BORROW_RATE_OVERFLOW = '55'; // Stable borrow rate overflows uint128
string internal constant CT_INVALID_MINT_AMOUNT = '56'; //invalid amount to mint
string internal constant LP_FAILED_REPAY_WITH_COLLATERAL = '57';
string internal constant CT_INVALID_BURN_AMOUNT = '58'; //invalid amount to burn
string internal constant LP_FAILED_COLLATERAL_SWAP = '60';
string internal constant LP_INVALID_EQUAL_ASSETS_TO_SWAP = '61';
string internal constant LP_REENTRANCY_NOT_ALLOWED = '62';
string internal constant LP_CALLER_MUST_BE_AN_ATOKEN = '63';
string internal constant LP_IS_PAUSED = '64'; // 'Pool is paused'
string internal constant LP_NO_MORE_RESERVES_ALLOWED = '65';
string internal constant LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN = '66';
string internal constant RC_INVALID_LTV = '67';
string internal constant RC_INVALID_LIQ_THRESHOLD = '68';
string internal constant RC_INVALID_LIQ_BONUS = '69';
string internal constant RC_INVALID_DECIMALS = '70';
string internal constant RC_INVALID_RESERVE_FACTOR = '71';
string internal constant LPAPR_INVALID_ADDRESSES_PROVIDER_ID = '72';
string internal constant VL_INCONSISTENT_FLASHLOAN_PARAMS = '73';
string internal constant LP_INCONSISTENT_PARAMS_LENGTH = '74';
string internal constant UL_INVALID_INDEX = '77';
string internal constant LP_NOT_CONTRACT = '78';
string internal constant SDT_STABLE_DEBT_OVERFLOW = '79';
string internal constant SDT_BURN_EXCEEDS_BALANCE = '80';
string internal constant VT_COLLATERAL_DEPOSIT_REQUIRE_ETH = '81'; //Only accept ETH for collateral deposit
string internal constant VT_COLLATERAL_DEPOSIT_INVALID = '82'; //Collateral deposit failed
string internal constant VT_LIQUIDITY_DEPOSIT_INVALID = '83'; //Only accept USDC, USDT, DAI for liquidity deposit
string internal constant VT_COLLATERAL_WITHDRAW_INVALID = '84'; //Collateral withdraw failed
string internal constant VT_COLLATERAL_WITHDRAW_INVALID_AMOUNT = '85'; //Collateral withdraw has not enough amount
string internal constant VT_CONVERT_ASSET_BY_CURVE_INVALID = '86'; //Convert asset by curve invalid
string internal constant VT_PROCESS_YIELD_INVALID = '87'; //Processing yield is invalid
string internal constant VT_TREASURY_INVALID = '88'; //Treasury is invalid
string internal constant LP_ATOKEN_INIT_INVALID = '89'; //aToken invalid init
string internal constant VT_FEE_TOO_BIG = '90'; //Fee is too big
string internal constant VT_COLLATERAL_DEPOSIT_VAULT_UNAVAILABLE = '91';
string internal constant LP_LIQUIDATION_CONVERT_FAILED = '92';
string internal constant VT_DEPLOY_FAILED = '93'; // Vault deploy failed
string internal constant VT_INVALID_CONFIGURATION = '94'; // Invalid vault configuration
string internal constant VL_OVERFLOW_MAX_RESERVE_CAPACITY = '95'; // overflow max capacity of reserve
string internal constant VT_WITHDRAW_AMOUNT_MISMATCH = '96'; // not performed withdraw 100%
string internal constant VT_SWAP_MISMATCH_RETURNED_AMOUNT = '97'; //Returned amount is not enough
string internal constant CALLER_NOT_YIELD_PROCESSOR = '98'; // 'The caller must be the pool admin'
string internal constant VT_EXTRA_REWARDS_INDEX_INVALID = '99'; // Invalid extraRewards index
string internal constant VT_SWAP_PATH_LENGTH_INVALID = '100'; // Invalid token or fee length
string internal constant VT_SWAP_PATH_TOKEN_INVALID = '101'; // Invalid token information
string internal constant CLAIMER_UNAUTHORIZED = '102'; // 'The claimer is not authorized'
string internal constant YD_INVALID_CONFIGURATION = '103'; // 'The yield distribution's invalid configuration'
string internal constant CALLER_NOT_EMISSION_MANAGER = '104'; // 'The caller must be emission manager'
string internal constant CALLER_NOT_INCENTIVE_CONTROLLER = '105'; // 'The caller must be incentive controller'
string internal constant YD_VR_ASSET_ALREADY_IN_USE = '106'; // Vault is already registered
string internal constant YD_VR_INVALID_VAULT = '107'; // Invalid vault is used for an asset
string internal constant YD_VR_INVALID_REWARDS_AMOUNT = '108'; // Rewards amount should be bigger than before
string internal constant YD_VR_REWARD_TOKEN_NOT_VALID = '109'; // The reward token must be same with configured address
string internal constant YD_VR_ASSET_NOT_REGISTERED = '110';
string internal constant YD_VR_CALLER_NOT_VAULT = '111'; // The caller must be same with configured vault address
string internal constant LS_INVALID_CONFIGURATION = '112'; // Invalid Leverage Swapper configuration
string internal constant LS_SWAP_AMOUNT_NOT_GT_0 = '113'; // Collateral amount needs to be greater than zero
string internal constant LS_BORROWING_ASSET_NOT_SUPPORTED = '114'; // Doesn't support swap for the borrowing asset
string internal constant LS_SUPPLY_NOT_ALLOWED = '115'; // no sufficient funds
string internal constant LS_SUPPLY_FAILED = '116'; // Deposit fails when leverage works
string internal constant LS_REPAY_FAILED = '117'; // Repay fails when leverage works
string internal constant O_WRONG_PRICE = '118'; // not correct price oracle
enum CollateralManagerErrors {
NO_ERROR,
NO_COLLATERAL_AVAILABLE,
COLLATERAL_CANNOT_BE_LIQUIDATED,
CURRRENCY_NOT_BORROWED,
HEALTH_FACTOR_ABOVE_THRESHOLD,
NOT_ENOUGH_LIQUIDITY,
NO_ACTIVE_RESERVE,
HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD,
INVALID_EQUAL_ASSETS_TO_SWAP,
FROZEN_RESERVE
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {Errors} from '../helpers/Errors.sol';
/**
* @title PercentageMath library
* @author Sturdy, inspiration from Aave
* @notice Provides functions to perform percentage calculations
* @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR
* @dev Operations are rounded half up
**/
library PercentageMath {
uint256 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals
uint256 constant HALF_PERCENT = PERCENTAGE_FACTOR / 2;
/**
* @dev Executes a percentage multiplication
* @param value The value of which the percentage needs to be calculated
* @param percentage The percentage of the value to be calculated
* @return The percentage of value
**/
function percentMul(uint256 value, uint256 percentage) internal pure returns (uint256) {
if (value == 0 || percentage == 0) {
return 0;
}
return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR;
}
/**
* @dev Executes a percentage division
* @param value The value of which the percentage needs to be calculated
* @param percentage The percentage of the value to be calculated
* @return The value divided the percentage
**/
function percentDiv(uint256 value, uint256 percentage) internal pure returns (uint256) {
uint256 halfPercentage = percentage / 2;
return (value * PERCENTAGE_FACTOR + halfPercentage) / percentage;
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
import {Errors} from '../helpers/Errors.sol';
/**
* @title WadRayMath library
* @author Sturdy, inspiration from Aave
* @dev Provides mul and div function for wads (decimal numbers with 18 digits precision) and rays (decimals with 27 digits)
**/
library WadRayMath {
uint256 internal constant WAD = 1e18;
uint256 internal constant halfWAD = WAD / 2;
uint256 internal constant RAY = 1e27;
uint256 internal constant halfRAY = RAY / 2;
uint256 internal constant WAD_RAY_RATIO = 1e9;
/**
* @return One ray, 1e27
**/
function ray() internal pure returns (uint256) {
return RAY;
}
/**
* @return One wad, 1e18
**/
function wad() internal pure returns (uint256) {
return WAD;
}
/**
* @return Half ray, 1e27/2
**/
function halfRay() internal pure returns (uint256) {
return halfRAY;
}
/**
* @return Half ray, 1e18/2
**/
function halfWad() internal pure returns (uint256) {
return halfWAD;
}
/**
* @dev Multiplies two wad, rounding half up to the nearest wad
* @param a Wad
* @param b Wad
* @return The result of a*b, in wad
**/
function wadMul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0 || b == 0) {
return 0;
}
return (a * b + halfWAD) / WAD;
}
/**
* @dev Divides two wad, rounding half up to the nearest wad
* @param a Wad
* @param b Wad
* @return The result of a/b, in wad
**/
function wadDiv(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 halfB = b / 2;
return (a * WAD + halfB) / b;
}
/**
* @dev Multiplies two ray, rounding half up to the nearest ray
* @param a Ray
* @param b Ray
* @return The result of a*b, in ray
**/
function rayMul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0 || b == 0) {
return 0;
}
return (a * b + halfRAY) / RAY;
}
/**
* @dev Divides two ray, rounding half up to the nearest ray
* @param a Ray
* @param b Ray
* @return The result of a/b, in ray
**/
function rayDiv(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 halfB = b / 2;
return (a * RAY + halfB) / b;
}
/**
* @dev Casts ray down to wad
* @param a Ray
* @return a casted to wad, rounded half up to the nearest wad
**/
function rayToWad(uint256 a) internal pure returns (uint256) {
uint256 halfRatio = WAD_RAY_RATIO / 2;
uint256 result = halfRatio + a;
return result / WAD_RAY_RATIO;
}
/**
* @dev Converts wad up to ray
* @param a Wad
* @return a converted in ray
**/
function wadToRay(uint256 a) internal pure returns (uint256) {
uint256 result = a * WAD_RAY_RATIO;
return result;
}
}
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;
library DataTypes {
// refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties.
struct ReserveData {
//stores the reserve configuration
ReserveConfigurationMap configuration;
//the liquidity index. Expressed in ray
uint128 liquidityIndex;
//variable borrow index. Expressed in ray
uint128 variableBorrowIndex;
//the current supply rate. Expressed in ray
uint128 currentLiquidityRate;
//the current variable borrow rate. Expressed in ray
uint128 currentVariableBorrowRate;
//the current stable borrow rate. Expressed in ray
uint128 currentStableBorrowRate;
uint40 lastUpdateTimestamp;
//tokens addresses
address aTokenAddress;
address stableDebtTokenAddress;
address variableDebtTokenAddress;
//address of the interest rate strategy
address interestRateStrategyAddress;
//address of the yield contract
address yieldAddress;
//the id of the reserve. Represents the position in the list of the active reserves
uint8 id;
}
struct ReserveConfigurationMap {
//bit 0-15: LTV
//bit 16-31: Liq. threshold
//bit 32-47: Liq. bonus
//bit 48-55: Decimals
//bit 56: Reserve is active
//bit 57: reserve is frozen
//bit 58: borrowing is enabled
//bit 59: stable rate borrowing enabled
//bit 60-63: reserved
//bit 64-79: reserve factor
uint256 data;
}
struct UserConfigurationMap {
uint256 data;
}
enum InterestRateMode {
NONE,
STABLE,
VARIABLE
}
}