Contract Overview
Latest 8 from a total of 8 transactions
Contract Name:
Rebalancer
Compiler Version
v0.8.7+commit.e28d00a7
// File: @uniswap/v2-periphery/contracts/interfaces/IWETH.sol
pragma solidity >=0.5.0;
interface IWETH {
function deposit() external payable;
function transfer(address to, uint value) external returns (bool);
function withdraw(uint) external;
}
// File: contracts/Strategies/IStrategy.sol
pragma solidity ^0.8.4;
interface IStrategy {
struct Rewards {
uint256 rewardsAmount;
uint256 depositedAmount;
uint256 timestamp;
}
/// @notice Deposits an initial or more liquidity in the external contract
function deposit(uint256 amount) external payable returns (bool);
/// @notice Withdraws all the funds deposited in the external contract
function withdraw(uint256 amount) external returns (bool);
function withdrawAll() external returns (bool);
/// @notice This function will get all the rewards from the external service and send them to the invoker
function gather() external;
/// @notice Returns the amount staked plus the earnings
function checkRewards() external view returns (Rewards memory);
}
// File: @openzeppelin/contracts/utils/Address.sol
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts/Helpers/Safe.sol
pragma solidity ^0.8.4;
abstract contract Safe {
using SafeERC20 for IERC20;
address target;
constructor(address _target) {
target = _target;
}
function _withdrawFunds() internal returns (bool) {
(bool sent, ) = address(target).call{value: address(this).balance}("");
require(sent, "Safe: Failed to send Ether");
return sent;
}
function _withdrawFundsERC20(address tokenAddress) internal returns (bool) {
IERC20 token = IERC20(tokenAddress);
token.safeTransfer(target, token.balanceOf(address(this)));
return true;
}
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: contracts/Interfaces/UnifiPair.sol
pragma solidity ^0.8.4;
interface IUnifiPair is IERC20 {
function claimUP(address to) external returns (uint256 upReceived);
}
// File: contracts/Interfaces/IFactory.sol
pragma solidity ^0.8.4;
interface IFactory {
function INIT_CODE_PAIR_HASH() external pure returns(bytes32);
}
// File: contracts/Libraries/FullMath.sol
pragma solidity ^0.8.4;
// The library below is taken from @uniswap/lib/contracts/libraries/FullMath.sol. It has been modified to work with solidity 0.8
library FullMath {
/// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
/// @param a The multiplicand
/// @param b The multiplier
/// @param denominator The divisor
/// @return result The 256-bit result
/// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv
function mulDiv(
uint256 a,
uint256 b,
uint256 denominator
) internal pure returns (uint256 result) {
// 512-bit multiply [prod1 prod0] = a * b
// Compute the product mod 2**256 and mod 2**256 - 1
// then use the Chinese Remainder Theorem to reconstruct
// the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2**256 + prod0
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(a, b, not(0))
prod0 := mul(a, b)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division
if (prod1 == 0) {
require(denominator > 0);
assembly {
result := div(prod0, denominator)
}
return result;
}
// Make sure the result is less than 2**256.
// Also prevents denominator == 0
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0]
// Compute remainder using mulmod
uint256 remainder;
assembly {
remainder := mulmod(a, b, denominator)
}
// Subtract 256 bit number from 512 bit number
assembly {
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator
// Compute largest power of two divisor of denominator.
// Always >= 1.
uint256 twos = denominator & (~denominator + 1);
// Divide denominator by power of two
assembly {
denominator := div(denominator, twos)
}
// Divide [prod1 prod0] by the factors of two
assembly {
prod0 := div(prod0, twos)
}
// Shift in bits from prod1 into prod0. For this we need
// to flip `twos` such that it is 2**256 / twos.
// If twos is zero, then it becomes one
assembly {
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
// Invert denominator mod 2**256
// Now that denominator is an odd number, it has an inverse
// modulo 2**256 such that denominator * inv = 1 mod 2**256.
// Compute the inverse by starting with a seed that is correct
// correct for four bits. That is, denominator * inv = 1 mod 2**4
uint256 inv = (3 * denominator) ^ 2;
// Now use Newton-Raphson iteration to improve the precision.
// Thanks to Hensel's lifting lemma, this also works in modular
// arithmetic, doubling the correct bits in each step.
inv *= 2 - denominator * inv; // inverse mod 2**8
inv *= 2 - denominator * inv; // inverse mod 2**16
inv *= 2 - denominator * inv; // inverse mod 2**32
inv *= 2 - denominator * inv; // inverse mod 2**64
inv *= 2 - denominator * inv; // inverse mod 2**128
inv *= 2 - denominator * inv; // inverse mod 2**256
// Because the division is now exact we can divide by multiplying
// with the modular inverse of denominator. This will give us the
// correct result modulo 2**256. Since the precoditions guarantee
// that the outcome is less than 2**256, this is the final result.
// We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inv;
return result;
}
/// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
/// @param a The multiplicand
/// @param b The multiplier
/// @param denominator The divisor
/// @return result The 256-bit result
function mulDivRoundingUp(
uint256 a,
uint256 b,
uint256 denominator
) internal pure returns (uint256 result) {
result = mulDiv(a, b, denominator);
if (mulmod(a, b, denominator) > 0) {
require(result < type(uint256).max);
result++;
}
}
}
// File: @uniswap/lib/contracts/libraries/TransferHelper.sol
pragma solidity >=0.6.0;
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
// File: @uniswap/lib/contracts/libraries/Babylonian.sol
pragma solidity >=0.4.0;
// computes square roots using the babylonian method
// https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method
library Babylonian {
// credit for this implementation goes to
// https://github.com/abdk-consulting/abdk-libraries-solidity/blob/master/ABDKMath64x64.sol#L687
function sqrt(uint256 x) internal pure returns (uint256) {
if (x == 0) return 0;
// this block is equivalent to r = uint256(1) << (BitMath.mostSignificantBit(x) / 2);
// however that code costs significantly more gas
uint256 xx = x;
uint256 r = 1;
if (xx >= 0x100000000000000000000000000000000) {
xx >>= 128;
r <<= 64;
}
if (xx >= 0x10000000000000000) {
xx >>= 64;
r <<= 32;
}
if (xx >= 0x100000000) {
xx >>= 32;
r <<= 16;
}
if (xx >= 0x10000) {
xx >>= 16;
r <<= 8;
}
if (xx >= 0x100) {
xx >>= 8;
r <<= 4;
}
if (xx >= 0x10) {
xx >>= 4;
r <<= 2;
}
if (xx >= 0x8) {
r <<= 1;
}
r = (r + x / r) >> 1;
r = (r + x / r) >> 1;
r = (r + x / r) >> 1;
r = (r + x / r) >> 1;
r = (r + x / r) >> 1;
r = (r + x / r) >> 1;
r = (r + x / r) >> 1; // Seven iterations should be enough
uint256 r1 = x / r;
return (r < r1 ? r : r1);
}
}
// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: @openzeppelin/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// File: contracts/Libraries/UniswapHelper.sol
pragma solidity ^0.8.4;
library UniswapHelper {
using SafeMath for uint256;
// given an input amount of an asset and pair reserves, returns the maximum output amount of the other asset
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) internal pure returns (uint256 amountOut) {
require(amountIn > 0, "UniswapV2Library: INSUFFICIENT_INPUT_AMOUNT");
require(reserveIn > 0 && reserveOut > 0, "UniswapV2Library: INSUFFICIENT_LIQUIDITY");
uint256 amountInWithFee = amountIn * 997;
uint256 numerator = amountInWithFee * reserveOut;
uint256 denominator = reserveIn * 1000 + amountInWithFee;
amountOut = numerator / denominator;
}
// given an output amount of an asset and pair reserves, returns a required input amount of the other asset
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) internal pure returns (uint amountIn) {
require(amountOut > 0, 'UniswapV2Library: INSUFFICIENT_OUTPUT_AMOUNT');
require(reserveIn > 0 && reserveOut > 0, 'UniswapV2Library: INSUFFICIENT_LIQUIDITY');
uint numerator = reserveIn.mul(amountOut).mul(1000);
uint denominator = reserveOut.sub(amountOut).mul(997);
amountIn = (numerator / denominator).add(1);
}
// given some amount of an asset and pair reserves, returns an equivalent amount of the other asset
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) internal pure returns (uint256 amountB) {
require(amountA > 0, "UniswapV2Library: INSUFFICIENT_AMOUNT");
require(reserveA > 0 && reserveB > 0, "UniswapV2Library: INSUFFICIENT_LIQUIDITY");
amountB = (amountA * reserveB) / reserveA;
}
/**
* @notice Given the "true" price a token (represented by truePriceTokenA/truePriceTokenB) and the reservers in the
* uniswap pair, calculate: a) the direction of trade (aToB) and b) the amount needed to trade (amountIn) to move
* the pool price to be equal to the true price.
* @dev Note that this method uses the Babylonian square root method which has a small margin of error which will
* result in a small over or under estimation on the size of the trade needed.
* @param truePriceTokenA the nominator of the true price.
* @param truePriceTokenB the denominator of the true price.
* @param reserveA number of token A in the pair reserves
* @param reserveB number of token B in the pair reserves
*/
//
function computeTradeToMoveMarket(
uint256 truePriceTokenA,
uint256 truePriceTokenB,
uint256 reserveA,
uint256 reserveB
) public pure returns (bool aToB, uint256 amountIn) {
aToB = FullMath.mulDiv(reserveA, truePriceTokenB, reserveB) < truePriceTokenA;
uint256 invariant = reserveA.mul(reserveB);
uint256 leftSide = Babylonian.sqrt(
FullMath.mulDiv(
invariant.mul(1000),
aToB ? truePriceTokenA : truePriceTokenB,
(aToB ? truePriceTokenB : truePriceTokenA).mul(997)
)
);
uint256 rightSide = (aToB ? reserveA.mul(1000) : reserveB.mul(1000)) / 997;
if (leftSide < rightSide) return (false, 0);
amountIn = leftSide.sub(rightSide);
}
// The methods below are taken from https://github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/libraries/UniswapV2Library.sol
// We could import this library into this contract but this library is dependent Uniswap's SafeMath, which is bound
// to solidity 6.6.6. UMA uses 0.8.0 and so a modified version is needed to accomidate this solidity version.
function getReserves(
address factory,
address tokenA,
address tokenB
) public view returns (uint256 reserveA, uint256 reserveB) {
(address token0, ) = sortTokens(tokenA, tokenB);
(uint256 reserve0, uint256 reserve1, ) = IUniswapV2Pair(pairFor(factory, tokenA, tokenB))
.getReserves();
(reserveA, reserveB) = tokenA == token0 ? (reserve0, reserve1) : (reserve1, reserve0);
}
function sortTokens(address tokenA, address tokenB)
internal
pure
returns (address token0, address token1)
{
require(tokenA != tokenB, "UniswapV2Library: IDENTICAL_ADDRESSES");
(token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
require(token0 != address(0), "UniswapV2Library: ZERO_ADDRESS");
}
// calculates the CREATE2 address for a pair without making any external calls
function pairFor(
address factory,
address tokenA,
address tokenB
) public pure returns (address pair) {
(address token0, address token1) = sortTokens(tokenA, tokenB);
bytes32 initCodeHash = IFactory(factory).INIT_CODE_PAIR_HASH();
pair = address(
uint160(
uint256(
keccak256(
abi.encodePacked(
hex"ff",
factory,
keccak256(abi.encodePacked(token0, token1)),
initCodeHash
)
)
)
)
);
}
}
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol
pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol
pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// File: @openzeppelin/contracts/security/Pausable.sol
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// File: @openzeppelin/contracts/access/IAccessControl.sol
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}
// File: @openzeppelin/contracts/access/AccessControl.sol
// OpenZeppelin Contracts (last updated v4.6.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it.
*/
abstract contract AccessControl is Context, IAccessControl, ERC165 {
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
Strings.toHexString(uint160(account), 20),
" is missing role ",
Strings.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) public virtual override {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
}
// File: contracts/UP.sol
pragma solidity ^0.8.4;
contract UP is ERC20, AccessControl {
bytes32 public constant MINT_ROLE = keccak256("MINT_ROLE");
bytes32 public constant LEGACY_MINT_ROLE = keccak256("LEGACY_MINT_ROLE");
address public UP_CONTROLLER = address(0);
event SetUPController(address _setter, address _newController);
modifier onlyMint() {
require(hasRole(MINT_ROLE, msg.sender), "UP: ONLY_MINT");
_;
}
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "UP: ONLY_ADMIN");
_;
}
constructor() ERC20("UPiotx", "UPiotx") {
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
}
/// @notice UPv1 legacy
receive() external payable {}
function burn(uint256 amount) public {
_burn(_msgSender(), amount);
}
function burnFrom(address account, uint256 amount) public {
_spendAllowance(account, _msgSender(), amount);
_burn(account, amount);
}
/// @notice Retrocompatible function with v1
function justBurn(uint256 amount) external {
burn(amount);
}
/// @notice Mints token and have logic for supporting legacy mint logic
function mint(address to, uint256 amount) public payable onlyMint returns (bool) {
/// LEGACY_MINT_ROLE retrocompatible with UPv1
if (hasRole(LEGACY_MINT_ROLE, msg.sender) && UP_CONTROLLER != address(0)) {
(bool success, ) = UP_CONTROLLER.call{value: msg.value}(
abi.encodeWithSignature(("mintUP(address)"), to)
);
require(success, "UP: LEGACY_MINT_FAILED");
} else {
_mint(to, amount);
}
/// Legacy UPv1 return
return true;
}
/// @notice Sets a controller address that will receive the funds from LEGACY_MINT_ROLE
function setController(address newController) public onlyAdmin {
UP_CONTROLLER = newController;
emit SetUPController(msg.sender, newController);
}
function withdrawFunds() public {
require(UP_CONTROLLER != address(0));
(bool success, ) = UP_CONTROLLER.call{value: address(this).balance}("");
require(success);
}
}
// File: contracts/UPController.sol
pragma solidity ^0.8.4;
/// @title UP Controller
/// @author dxffffff & A Fistful of Stray Cat Hair
/// @notice This controller back up the UP token and has the logic for borrowing tokens.
contract UPController is AccessControl, Safe, Pausable {
bytes32 public constant REBALANCER_ROLE = keccak256("REBALANCER_ROLE");
bytes32 public constant REDEEMER_ROLE = keccak256("REDEEMER_ROLE");
address payable public UP_TOKEN = payable(address(0));
uint256 public nativeBorrowed = 0;
uint256 public upBorrowed = 0;
event SyntheticMint(address _from, uint256 _amount, uint256 _newUpBorrowed);
event BorrowNative(address _from, uint256 _amount, uint256 _newNativeBorrowed);
event Repay(uint256 _nativeAmount, uint256 _upAmount);
event Redeem(uint256 _upAmount, uint256 _redeemAmount);
modifier onlyRebalancer() {
require(hasRole(REBALANCER_ROLE, msg.sender), "UPController: ONLY_REBALANCER");
_;
}
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "UPController: ONLY_ADMIN");
_;
}
modifier onlyRedeemer() {
require(hasRole(REDEEMER_ROLE, msg.sender), "UPController: ONLY_REDEEMER");
_;
}
constructor(address _UP, address _fundsTarget) Safe(_fundsTarget) {
require(_UP != address(0), "UPController: Invalid UP address");
UP_TOKEN = payable(_UP);
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
}
receive() external payable {}
/// @notice Returns price of UP token based on its reserves
function getVirtualPrice() public view returns (uint256) {
if (getNativeBalance() == 0) return 0;
return ((getNativeBalance() * 1e18) / actualTotalSupply());
}
/// @notice Returns price of UP token based on its reserves minus amount sent to the contract
function getVirtualPrice(uint256 sentValue) public view returns (uint256) {
if (getNativeBalance() == 0) return 0;
uint256 nativeBalance = getNativeBalance() - sentValue;
return ((nativeBalance * 1e18) / actualTotalSupply());
}
/// @notice Computed the actual native balances of the contract
function getNativeBalance() public view returns (uint256) {
return address(this).balance + nativeBorrowed;
}
/// @notice Computed total supply of UP token
function actualTotalSupply() public view returns (uint256) {
return UP(UP_TOKEN).totalSupply() - upBorrowed;
}
/// @notice Borrows native token from the back up reserves
function borrowNative(uint256 _borrowAmount, address _to) public onlyRebalancer whenNotPaused {
require(address(this).balance >= _borrowAmount, "UPController: NOT_ENOUGH_BALANCE");
(bool success, ) = _to.call{value: _borrowAmount}("");
nativeBorrowed += _borrowAmount;
require(success, "UPController: BORROW_NATIVE_FAILED");
emit BorrowNative(_to, _borrowAmount, nativeBorrowed);
}
/// @notice Borrows UP token minting it
function borrowUP(uint256 _borrowAmount, address _to) public onlyRebalancer whenNotPaused {
upBorrowed += _borrowAmount;
UP(UP_TOKEN).mint(_to, _borrowAmount);
emit SyntheticMint(msg.sender, _borrowAmount, upBorrowed);
}
function mintSyntheticUP(uint256 _mintAmount, address _to) public onlyRebalancer whenNotPaused {
borrowUP(_mintAmount, _to);
}
/// @notice Mints UP based on virtual price - UPv1 logic
function mintUP(address to) external payable whenNotPaused {
require(msg.sender == UP_TOKEN, "UPController: NON_UP_CONTRACT");
uint256 mintAmount = (msg.value * 1e18) / getVirtualPrice(msg.value);
UP(UP_TOKEN).mint(to, mintAmount);
}
/// @notice Allows to return back borrowed amounts to the controller
function repay(uint256 upAmount) public payable onlyRebalancer whenNotPaused {
UP(UP_TOKEN).burnFrom(msg.sender, upAmount);
upBorrowed -= upAmount <= upBorrowed ? upAmount : upBorrowed;
nativeBorrowed -= msg.value <= nativeBorrowed ? msg.value : nativeBorrowed;
emit Repay(msg.value, upAmount);
}
/// @notice Swaps UP token by native token
function redeem(uint256 upAmount) public onlyRedeemer whenNotPaused {
require(upAmount > 0, "UPController: AMOUNT_EQ_0");
uint256 redeemAmount = (getVirtualPrice() * upAmount) / 1e18;
UP(UP_TOKEN).burnFrom(msg.sender, upAmount);
(bool success, ) = msg.sender.call{value: redeemAmount}("");
require(success, "UPController: REDEEM_FAILED");
emit Redeem(upAmount, redeemAmount);
}
function pause() public onlyAdmin {
_pause();
}
function unpause() public onlyAdmin {
_unpause();
}
function withdrawFunds() public onlyAdmin returns (bool) {
return _withdrawFunds();
}
function withdrawFundsERC20(address tokenAddress) public onlyAdmin returns (bool) {
return _withdrawFundsERC20(tokenAddress);
}
}
// File: contracts/Darbi/UPMintDarbi.sol
pragma solidity ^0.8.4;
/// @title UP Darbi Mint
/// @author Daniel Blanco & A Fistful of Stray Cat Hair
/// @notice This contract allows to DARBi to mint UP at virtual price.
contract UPMintDarbi is AccessControl, Pausable, Safe {
bytes32 public constant DARBI_ROLE = keccak256("DARBI_ROLE");
address payable public UP_TOKEN = payable(address(0));
address payable public UP_CONTROLLER = payable(address(0));
modifier onlyDarbi() {
require(hasRole(DARBI_ROLE, msg.sender), "UPMintDarbi: ONLY_DARBI");
_;
}
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "UPMintDarbi: ONLY_ADMIN");
_;
}
event DarbiMint(address indexed _from, uint256 _amount, uint256 _price, uint256 _value);
event UpdateController(address _upController);
constructor(
address _UP,
address _UPController,
address _fundsTarget
) Safe(_fundsTarget) {
require(_UP != address(0), "UPMintDarbi: Invalid UP address");
UP_TOKEN = payable(_UP);
UP_CONTROLLER = payable(_UPController);
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
}
/// @notice Payable function that mints UP at the mint rate, deposits the native tokens to the UP Controller, Sends UP to the Msg.sender
function mintUP() public payable whenNotPaused onlyDarbi {
require(msg.value > 0, "UPMintDarbi: INVALID_PAYABLE_AMOUNT");
uint256 currentPrice = UPController(UP_CONTROLLER).getVirtualPrice();
if (currentPrice == 0) return;
uint256 mintAmount = (msg.value * 1e18) / currentPrice;
UP(UP_TOKEN).mint(msg.sender, mintAmount);
(bool successTransfer, ) = UP_CONTROLLER.call{value: msg.value}(""); /// GO BACK
require(successTransfer, "UPMintDarbi: FAIL_SENDING_NATIVE");
emit DarbiMint(msg.sender, mintAmount, currentPrice, msg.value);
}
///@notice Permissioned function to update the address of the UP Controller
///@param _upController - the address of the new UP Controller
function updateController(address _upController) public onlyAdmin {
require(_upController != address(0), "UPMintDarbi: INVALID_ADDRESS");
UP_CONTROLLER = payable(_upController);
emit UpdateController(_upController);
}
///@notice Grant DARBi role
///@param _darbiAddr - a new DARBi address
function grantDarbiRole(address _darbiAddr) public onlyAdmin {
require(_darbiAddr != address(0), "UPMintDarbi: INVALID_ADDRESS");
grantRole(DARBI_ROLE, _darbiAddr);
}
///@notice Revoke DARBi role
///@param _darbiAddr - DARBi address to revoke
function revokeDarbiRole(address _darbiAddr) public onlyAdmin {
require(_darbiAddr != address(0), "UPMintDarbi: INVALID_ADDRESS");
revokeRole(DARBI_ROLE, _darbiAddr);
}
///@notice Permissioned function to withdraw any native coins accidentally deposited to the Darbi Mint contract.
function withdrawFunds() public onlyAdmin returns (bool) {
return _withdrawFunds();
}
///@notice Permissioned function to withdraw any tokens accidentally deposited to the Darbi Mint contract.
function withdrawFundsERC20(address tokenAddress) public onlyAdmin returns (bool) {
return _withdrawFundsERC20(tokenAddress);
}
/// @notice Permissioned function to pause UPaddress Controller
function pause() public onlyAdmin {
_pause();
}
/// @notice Permissioned function to unpause UPaddress Controller
function unpause() public onlyAdmin {
_unpause();
}
fallback() external payable {}
receive() external payable {}
}
// File: contracts/Darbi/Darbi.sol
pragma solidity ^0.8.4;
contract Darbi is AccessControl, Pausable, Safe {
using SafeERC20 for IERC20;
bytes32 public constant MONITOR_ROLE = keccak256("MONITOR_ROLE");
bytes32 public constant REBALANCER_ROLE = keccak256("REBALANCER_ROLE");
address public factory;
address public WETH;
address public gasRefundAddress;
uint256 public arbitrageThreshold = 100000;
uint256 public gasRefund = 3500000000000000;
uint256 public darbiDepositBalance = 0.5 ether;
IERC20 public UP_TOKEN;
IUniswapV2Router02 public router;
UPController public UP_CONTROLLER;
UPMintDarbi public DARBI_MINTER;
event Arbitrage(bool isSellingUp, uint256 actualAmountIn);
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "Darbi: ONLY_ADMIN");
_;
}
modifier onlyMonitor() {
require(hasRole(MONITOR_ROLE, msg.sender), "Darbi: ONLY_MONITOR");
_;
}
modifier onlyRebalancer() {
require(hasRole(REBALANCER_ROLE, msg.sender), "Darbi: ONLY_REBALANCER");
_;
}
modifier onlyRebalancerOrMonitor() {
require(
hasRole(REBALANCER_ROLE, msg.sender) || hasRole(MONITOR_ROLE, msg.sender),
"Darbi: ONLY_REBALANCER_OR_MONITOR"
);
_;
}
constructor(
address _factory,
address _router,
address _WETH,
address _gasRefundAddress,
address _UP_CONTROLLER,
address _darbiMinter,
address _fundsTarget
) Safe(_fundsTarget) {
factory = _factory;
router = IUniswapV2Router02(_router);
WETH = _WETH;
gasRefundAddress = _gasRefundAddress;
UP_CONTROLLER = UPController(payable(_UP_CONTROLLER));
DARBI_MINTER = UPMintDarbi(payable(_darbiMinter));
UP_TOKEN = IERC20(payable(UP_CONTROLLER.UP_TOKEN()));
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
}
receive() external payable {}
function arbitrage() public whenNotPaused onlyMonitor {
(
bool aToB,
uint256 amountIn,
uint256 reserves0,
uint256 reserves1,
uint256 backedValue
) = moveMarketBuyAmount();
// aToB == true == Buys UP
// aToB == fals == Sells UP
uint256 balances = address(this).balance;
// If Buying UP
if (!aToB) {
require(amountIn > gasRefund, "Darbi: Trade will not be profitable");
if (amountIn < arbitrageThreshold) return;
_arbitrageBuy(balances, amountIn, backedValue, reserves0, reserves1);
} else {
uint256 amountInETHTerms = (amountIn * backedValue) / 1e18;
require(amountInETHTerms > gasRefund, "Darbi: Trade will not be profitable");
if (amountInETHTerms < arbitrageThreshold) return;
_arbitrageSell(balances, amountIn, backedValue);
}
refund();
}
function forceArbitrage() public whenNotPaused onlyRebalancer {
(
bool aToB,
uint256 amountIn,
uint256 reservesUP,
uint256 reservesETH,
uint256 backedValue
) = moveMarketBuyAmount();
// aToB == true == Buys UP
// aToB == fals == Sells UP
uint256 balances = address(this).balance;
// If Buying UP
if (!aToB) {
if (amountIn < arbitrageThreshold) return;
_arbitrageBuy(balances, amountIn, backedValue, reservesUP, reservesETH);
} else {
uint256 amountInETHTerms = (amountIn * backedValue) / 1e18;
if (amountInETHTerms < arbitrageThreshold) return;
_arbitrageSell(balances, amountIn, backedValue);
}
}
function _arbitrageBuy(
uint256 balances,
uint256 amountIn,
uint256 backedValue,
uint256 reservesUP,
uint256 reservesETH
) internal {
uint256 actualAmountIn = amountIn <= balances ? amountIn : balances; //Value is going to native
uint256 expectedReturn = UniswapHelper.getAmountOut(actualAmountIn, reservesETH, reservesUP); // Amount of UP expected from Buy
uint256 expectedNativeReturn = (expectedReturn * backedValue) / 1e18; //Amount of Native Tokens Expected to Receive from Redeem
uint256 upControllerBalance = address(UP_CONTROLLER).balance;
if (upControllerBalance < expectedNativeReturn) {
uint256 upOutput = (upControllerBalance * 1e18) / backedValue; //Value in UP Token
actualAmountIn = UniswapHelper.getAmountIn(upOutput, reservesETH, reservesUP); // Amount of UP expected from Buy
}
address[] memory path = new address[](2);
path[0] = WETH;
path[1] = address(UP_TOKEN);
uint256[] memory amounts = router.swapExactETHForTokens{value: actualAmountIn}(
0,
path,
address(this),
block.timestamp + 150
);
UP_TOKEN.approve(address(UP_CONTROLLER), amounts[1]);
UP_CONTROLLER.redeem(amounts[1]);
emit Arbitrage(false, actualAmountIn);
}
function _arbitrageSell(
uint256 balances,
uint256 amountIn,
uint256 backedValue
) internal {
// If selling UP
uint256 darbiBalanceMaximumUpToMint = (balances * 1e18) / backedValue; // Amount of UP that we can mint with current balances
uint256 actualAmountIn = amountIn <= darbiBalanceMaximumUpToMint
? amountIn
: darbiBalanceMaximumUpToMint; // Value in UP
uint256 nativeToMint = (actualAmountIn * backedValue) / 1e18;
DARBI_MINTER.mintUP{value: nativeToMint}();
address[] memory path = new address[](2);
path[0] = address(UP_TOKEN);
path[1] = WETH;
uint256 up2Balance = UP_TOKEN.balanceOf(address(this));
UP_TOKEN.approve(address(router), up2Balance);
router.swapExactTokensForETH(up2Balance, 0, path, address(this), block.timestamp + 150);
emit Arbitrage(true, up2Balance);
}
function refund() public whenNotPaused onlyRebalancerOrMonitor {
uint256 newBalances0 = address(this).balance;
if ((newBalances0 + gasRefund) < darbiDepositBalance) return;
(bool success1, ) = gasRefundAddress.call{value: gasRefund}("");
require(success1, "Darbi: FAIL_SENDING_GAS_REFUND_TO_MONITOR");
uint256 newBalances1 = newBalances0 - gasRefund;
uint256 diffBalances = newBalances1 > darbiDepositBalance ? newBalances1 - darbiDepositBalance : 0;
if (diffBalances > 0) {
(bool success2, ) = address(UP_CONTROLLER).call{value: diffBalances}("");
require(success2, "Darbi: FAIL_SENDING_BALANCES_TO_CONTROLLER");
}
}
function moveMarketBuyAmount()
public
view
returns (
bool aToB,
uint256 amountIn,
uint256 reservesUP,
uint256 reservesETH,
uint256 upPrice
)
{
(reservesUP, reservesETH) = UniswapHelper.getReserves(
factory,
address(UP_TOKEN),
address(WETH)
);
upPrice = UP_CONTROLLER.getVirtualPrice();
(aToB, amountIn) = UniswapHelper.computeTradeToMoveMarket(
1000000000000000000, // Ratio = 1:UPVirtualPrice
upPrice,
reservesUP,
reservesETH
);
return (aToB, amountIn, reservesUP, reservesETH, upPrice);
}
function addDarbiFunds() public payable {
uint256 depositAmount = msg.value;
darbiDepositBalance += depositAmount;
}
function redeemUP() internal {
UP_CONTROLLER.redeem(IERC20(UP_CONTROLLER.UP_TOKEN()).balanceOf(address(this)));
}
function setController(address _controller) public onlyAdmin {
require(_controller != address(0));
UP_CONTROLLER = UPController(payable(_controller));
}
function setDarbiFunds(uint256 setAmount) public onlyAdmin {
darbiDepositBalance = setAmount;
}
function setArbitrageThreshold(uint256 _threshold) public onlyAdmin {
require(_threshold > 0);
arbitrageThreshold = _threshold;
}
function setGasRefund(uint256 _gasRefund) public onlyAdmin {
require(_gasRefund > 0);
gasRefund = _gasRefund;
}
function setGasRefundAddress(address _gasRefundAddress) public onlyAdmin {
require(_gasRefundAddress != address(0));
gasRefundAddress = _gasRefundAddress;
}
function setDarbiMinter(address _newMinter) public onlyAdmin {
require(_newMinter != address(0));
DARBI_MINTER = UPMintDarbi(payable(_newMinter));
}
function withdrawFunds() public onlyAdmin returns (bool) {
darbiDepositBalance == 0;
return _withdrawFunds();
}
function withdrawFundsERC20(address tokenAddress) public onlyAdmin returns (bool) {
return _withdrawFundsERC20(tokenAddress);
}
/// @notice Permissioned function to pause UPaddress Controller
function pause() public onlyAdmin {
_pause();
}
/// @notice Permissioned function to unpause UPaddress Controller
function unpause() public onlyAdmin {
_unpause();
}
}
// File: contracts/RebalancerExt.sol
pragma solidity ^0.8.4;
contract Rebalancer is AccessControl, Pausable, Safe {
bytes32 public constant REBALANCE_ROLE = keccak256("REBALANCE_ROLE");
address public WETH = address(0);
address public unifiFactory = address(0);
IStrategy public strategy;
IUnifiPair public liquidityPool;
Darbi public darbi;
UP public UPToken;
UPController public UP_CONTROLLER;
uint256 public allocationLP = 5; //Whole Number for Percent, i.e. 5 = 5%
uint256 public allocationRedeem = 5; //Whole Number for Percent, i.e. 5 = 5%
uint256 public slippageTolerance = 30; //Percent with 2 Percision, i.e. 10 = 0.1%
IUniswapV2Router02 public unifiRouter;
IStrategy.Rewards[] public rewards;
uint256 private initRewardsPos = 0;
modifier onlyRebalance() {
require(hasRole(REBALANCE_ROLE, msg.sender), "Rebalancer: ONLY_REBALANCE");
_;
}
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "Rebalancer: ONLY_ADMIN");
_;
}
constructor(
address _WETH,
address _UPAddress,
address _UPController,
address _Strategy,
address _unifiRouter,
address _unifiFactory,
address _liquidityPool,
address _darbi,
address _fundsTarget
) Safe(_fundsTarget) {
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
WETH = _WETH;
setUPController(_UPController);
strategy = IStrategy(_Strategy);
UPToken = UP(payable(_UPAddress));
unifiRouter = IUniswapV2Router02(_unifiRouter);
unifiFactory = _unifiFactory;
liquidityPool = IUnifiPair(payable(_liquidityPool));
darbi = Darbi(payable(_darbi));
}
receive() external payable {}
// Keep interface for compatiblity issues with the initial version
function claimAndBurn() internal {
// liquidityPool.claimUP(address(this));
// UPToken.justBurn(UPToken.balanceOf(address(this)));
}
function getControllerBalance() internal view returns (uint256) {
return UP_CONTROLLER.getNativeBalance();
}
function rebalance() public whenNotPaused onlyRebalance {
if (address(strategy) != address(0)) {
_rebalanceWithStrategy();
} else {
_rebalanceWithoutStrategy();
}
}
function _rebalanceWithStrategy() public whenNotPaused onlyRebalance {
// Step 1
// claimAndBurn();
// Store a snapshot of the rewards
IStrategy.Rewards memory strategyRewards = strategy.checkRewards();
saveReward(strategyRewards);
// Gather the generated rewards by the strategy and send them to the UPController
// Step 2
strategy.gather();
(bool successUpcTransfer, ) = address(UP_CONTROLLER).call{value: strategyRewards.rewardsAmount}(
""
);
require(successUpcTransfer, "Rebalancer: FAIL_SENDING_REWARDS_TO_UPC");
// UPController balances after get rewards
// Force Arbitrage
// Step 3
darbi.forceArbitrage();
(uint256 reservesUP, uint256 reservesETH) = UniswapHelper.getReserves(
unifiFactory,
address(UPToken),
WETH
);
(, uint256 ethLpBalance) = getLiquidityPoolBalance(reservesUP, reservesETH);
uint256 totalETH = getControllerBalance();
uint256 targetRedeemAmount = (totalETH * allocationRedeem) / 100;
uint256 targetLpAmount = (totalETH * allocationLP) / 100;
uint256 targetStrategyAmount = totalETH - targetLpAmount - targetRedeemAmount;
// Take money from the strategy - 5% of the total of the strategy
// Step 4
// Step 4.1
if (strategyRewards.depositedAmount < targetStrategyAmount) {
uint256 amountToDeposit = targetStrategyAmount - strategyRewards.depositedAmount;
UP_CONTROLLER.borrowNative(amountToDeposit, address(this));
strategy.deposit{value: amountToDeposit}(amountToDeposit);
//Step 4.2
} else if (strategyRewards.depositedAmount > targetStrategyAmount) {
// If UP Controller balance is less than 5%, the rebalancer withdraws from the strategy to deposit into the UP Controller
uint256 amountToWithdraw = strategyRewards.depositedAmount - targetStrategyAmount;
strategy.withdraw(amountToWithdraw);
UP_CONTROLLER.repay{value: amountToWithdraw}(0);
}
// REBALANCE LP
// Step 5
// IF after arbitrage the backedValue vs marketValue is still depegged over the threshold we dont have nothing to do
uint256 backedValue = UP_CONTROLLER.getVirtualPrice();
uint256 marketValue = (reservesETH * 1e18) / reservesUP;
// Step 5.1
uint256 deviation = backedValue < marketValue
? (1e18 - ((backedValue * 1e18) / marketValue)) / 1e14
: (1e18 - ((marketValue * 1e18) / backedValue)) / 1e14;
if (deviation > slippageTolerance) return;
// Step 6
// Step 6.1
if (ethLpBalance > targetLpAmount) {
// We get the needed amount of LP token that we need to sell in order to get enough
// ETH in this contract to rebalance to the redeem target amount.
uint256 amountToBeWithdrawnFromLp = ethLpBalance - targetLpAmount;
uint256 diffLpToRemove = (liquidityPool.totalSupply() * amountToBeWithdrawnFromLp) /
reservesETH;
if (diffLpToRemove > 0) {
liquidityPool.approve(address(unifiRouter), diffLpToRemove);
(uint256 amountToken, uint256 amountETH) = unifiRouter.removeLiquidityETH(
address(UPToken),
diffLpToRemove,
0,
0,
address(this),
block.timestamp + 150
);
UPToken.approve(address(UP_CONTROLLER), amountToken);
UP_CONTROLLER.repay{value: amountETH}(amountToken);
}
} else if (ethLpBalance < targetLpAmount) {
uint256 amountToWithdrawFromRedeem = targetLpAmount - ethLpBalance;
if (amountToWithdrawFromRedeem == 0) return;
UP_CONTROLLER.borrowNative(amountToWithdrawFromRedeem, address(this));
// Gets amount borrowed + anything else in wallet (but the balance should always be 0?)
uint256 ETHAmountToDeposit = address(this).balance;
// Calculates equivlent amount of synthetic UP based on market value
uint256 UPtoAddtoLP = (ETHAmountToDeposit * 1e18) / marketValue;
// If amount of UP to add 0, returns. This should be covered on the amountToWithdrawFromRedeem check
if (UPtoAddtoLP == 0) return;
// Mints Synthetic UP
UP_CONTROLLER.borrowUP(UPtoAddtoLP, address(this));
// ERC20 Approval
UPToken.approve(address(unifiRouter), UPtoAddtoLP);
// Adds liquidity
unifiRouter.addLiquidityETH{value: ETHAmountToDeposit}(
address(UPToken),
UPtoAddtoLP,
0,
0,
address(this),
block.timestamp + 150
);
}
darbi.refund();
}
function _rebalanceWithoutStrategy() internal {
// claimAndBurn();
// Run arbitrage
darbi.forceArbitrage();
(uint256 reservesUP, uint256 reservesETH) = UniswapHelper.getReserves(
unifiFactory,
address(UPToken),
WETH
);
// IF after arbitrage the backedValue vs marketValue is still depegged over the threshold we dont have nothing to do
uint256 backedValue = UP_CONTROLLER.getVirtualPrice();
uint256 marketValue = (reservesETH * 1e18) / reservesUP;
uint256 deviation = backedValue < marketValue
? (1e18 - ((backedValue * 1e18) / marketValue)) / 1e14
: (1e18 - ((marketValue * 1e18) / backedValue)) / 1e14;
if (deviation > slippageTolerance) return;
(, uint256 ethLpBalance) = getLiquidityPoolBalance(reservesUP, reservesETH);
uint256 actualRedeemAmount = (getControllerBalance() * allocationRedeem) / 100;
uint256 actualEthLpAllocation = getControllerBalance() - actualRedeemAmount; // ETH
// IF current LpPrice(95%) > RedeemPrice(95%) = we need to rebalance it to accomplish the rule
if (ethLpBalance > actualEthLpAllocation) {
// We get the needed amount of LP token that we need to sell in order to get enough
// ETH in this contract to rebalance to the redeem target amount.
uint256 amountToBeWithdrawnFromLp = ethLpBalance - actualEthLpAllocation;
uint256 diffLpToRemove = (liquidityPool.totalSupply() * amountToBeWithdrawnFromLp) /
reservesETH;
if (diffLpToRemove > 0) {
liquidityPool.approve(address(unifiRouter), diffLpToRemove);
(uint256 amountToken, uint256 amountETH) = unifiRouter.removeLiquidityETH(
address(UPToken),
diffLpToRemove,
0,
0,
address(this),
block.timestamp + 150
);
UPToken.approve(address(UP_CONTROLLER), amountToken);
UP_CONTROLLER.repay{value: amountETH}(amountToken);
}
// IF current RedeemPrice(95%) > LpPrice(95%)
// If current LP is below allocation
} else if (ethLpBalance < actualEthLpAllocation) {
// Calculates the amount to withdraw from controller
uint256 amountToWithdrawFromRedeem = actualEthLpAllocation - ethLpBalance;
if (amountToWithdrawFromRedeem == 0) return;
// Borrows from Controller
UP_CONTROLLER.borrowNative(amountToWithdrawFromRedeem, address(this));
// Gets amount borrowed + anything else in wallet (but the balance should always be 0?)
uint256 ETHAmountToDeposit = address(this).balance;
// Calculates equivlent amount of synthetic UP based on market value
uint256 UPtoAddtoLP = (ETHAmountToDeposit * 1e18) / marketValue;
// If amount of UP to add 0, returns. This should be covered on the amountToWithdrawFromRedeem check
if (UPtoAddtoLP == 0) return;
// Mints Synthetic UP
UP_CONTROLLER.borrowUP(UPtoAddtoLP, address(this));
// ERC20 Approval
UPToken.approve(address(unifiRouter), UPtoAddtoLP);
// Adds liquidity
unifiRouter.addLiquidityETH{value: ETHAmountToDeposit}(
address(UPToken),
UPtoAddtoLP,
0,
0,
address(this),
block.timestamp + 150
);
}
darbi.refund();
}
function setStrategy(address newAddress) public onlyAdmin {
strategy = IStrategy(newAddress);
}
function getLiquidityPoolBalance(uint256 reserves0, uint256 reserves1)
public
view
returns (uint256, uint256)
{
uint256 lpBalance = liquidityPool.balanceOf(address(this));
if (lpBalance == 0) {
return (0, 0);
}
uint256 totalSupply = liquidityPool.totalSupply();
uint256 amount0 = (lpBalance * reserves0) / totalSupply;
uint256 amount1 = (lpBalance * reserves1) / totalSupply;
return (amount0, amount1);
}
function setUPController(address newAddress) public onlyAdmin {
UP_CONTROLLER = UPController(payable(newAddress));
}
function setDarbi(address newAddress) public onlyAdmin {
darbi = Darbi(payable(newAddress));
}
function saveReward(IStrategy.Rewards memory reward) internal {
if (getRewardsLength() == 10) {
delete rewards[initRewardsPos];
initRewardsPos += 1;
}
rewards.push(reward);
}
function getRewardsLength() public view returns (uint256) {
return rewards.length - initRewardsPos;
}
function getReward(uint256 position) public view returns (IStrategy.Rewards memory) {
return rewards[initRewardsPos + position];
}
function setAllocationLP(uint256 _allocationLP) public onlyAdmin returns (bool) {
bool lessthan100 = allocationRedeem + _allocationLP <= 100;
require(lessthan100, "Rebalancer: Allocation for Redeem and LP is over 100%");
allocationLP = _allocationLP;
return true;
}
function setAllocationRedeem(uint256 _allocationRedeem) public onlyAdmin returns (bool) {
bool lessthan100 = allocationLP + _allocationRedeem <= 100;
require(lessthan100, "Rebalancer: Allocation for Redeem and LP is over 100%");
allocationRedeem = _allocationRedeem;
return true;
}
function setSlippageTolerance(uint256 _slippageTolerance) public onlyAdmin returns (bool) {
bool lessthan10000 = _slippageTolerance <= 10000;
require(lessthan10000, "Rebalancer: Cannot Set Slippage Tolerance over 100%");
slippageTolerance = _slippageTolerance;
return true;
}
/// @notice Permissioned function to withdraw any native coins accidentally deposited to the Public Mint contract.
function withdrawFunds() public onlyAdmin returns (bool) {
return _withdrawFunds();
}
/// @notice Permissioned function to withdraw any tokens accidentally deposited to the Public Mint contract.
function withdrawFundsERC20(address tokenAddress) public onlyAdmin returns (bool) {
return _withdrawFundsERC20(tokenAddress);
}
/// @notice Permissioned function to pause UPToken Controller
function pause() public onlyAdmin {
_pause();
}
/// @notice Permissioned function to unpause UPToken Controller
function unpause() public onlyAdmin {
_unpause();
}
}[{"inputs":[{"internalType":"address","name":"_WETH","type":"address"},{"internalType":"address","name":"_UPAddress","type":"address"},{"internalType":"address","name":"_UPController","type":"address"},{"internalType":"address","name":"_Strategy","type":"address"},{"internalType":"address","name":"_unifiRouter","type":"address"},{"internalType":"address","name":"_unifiFactory","type":"address"},{"internalType":"address","name":"_liquidityPool","type":"address"},{"internalType":"address","name":"_darbi","type":"address"},{"internalType":"address","name":"_fundsTarget","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"REBALANCE_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UPToken","outputs":[{"internalType":"contract UP","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UP_CONTROLLER","outputs":[{"internalType":"contract UPController","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_rebalanceWithStrategy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"allocationLP","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"allocationRedeem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"darbi","outputs":[{"internalType":"contract Darbi","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"reserves0","type":"uint256"},{"internalType":"uint256","name":"reserves1","type":"uint256"}],"name":"getLiquidityPoolBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"position","type":"uint256"}],"name":"getReward","outputs":[{"components":[{"internalType":"uint256","name":"rewardsAmount","type":"uint256"},{"internalType":"uint256","name":"depositedAmount","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"internalType":"struct IStrategy.Rewards","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRewardsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"liquidityPool","outputs":[{"internalType":"contract IUnifiPair","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rebalance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"uint256","name":"rewardsAmount","type":"uint256"},{"internalType":"uint256","name":"depositedAmount","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_allocationLP","type":"uint256"}],"name":"setAllocationLP","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_allocationRedeem","type":"uint256"}],"name":"setAllocationRedeem","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAddress","type":"address"}],"name":"setDarbi","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_slippageTolerance","type":"uint256"}],"name":"setSlippageTolerance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAddress","type":"address"}],"name":"setStrategy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newAddress","type":"address"}],"name":"setUPController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"slippageTolerance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"strategy","outputs":[{"internalType":"contract IStrategy","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unifiFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unifiRouter","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawFunds","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"}],"name":"withdrawFundsERC20","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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