LiquidityManager

Description:

Multi-signature wallet contract requiring multiple confirmations for transaction execution.

Blockchain: Ethereum

Source Code: View Code On The Blockchain

Solidity Source Code:

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "@openzeppelin/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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);
}
"
    },
    "@openzeppelin/contracts/utils/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}
"
    },
    "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol": {
      "content": "pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}
"
    },
    "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol": {
      "content": "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);
}
"
    },
    "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol": {
      "content": "pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

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;
}
"
    },
    "contracts/interfaces/IUnicryptV2Locker.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.30;

interface IUnicryptV2Locker {
    struct TokenLock {
        uint256 lockDate; // the date the token was locked
        uint256 amount; // the amount of tokens still locked
        uint256 initialAmount; // the initial lock amount
        uint256 unlockDate; // the date the token can be withdrawn
        uint256 lockID; // lockID nonce per uni pair
        address owner;
    }

    function lockLPToken(
        address _lpToken,
        uint256 _amount,
        uint256 _unlock_date,
        address payable _referral,
        bool _fee_in_eth,
        address payable _withdrawer
    ) external payable;

    function withdraw(
        address _lpToken,
        uint256 _index,
        uint256 _lockID,
        uint256 _amount
    ) external;

    function relock(
        address _lpToken,
        uint256 _index,
        uint256 _lockID,
        uint256 _unlock_date
    ) external;

    function transferLockOwnership(
        address _lpToken,
        uint256 _index,
        uint256 _lockID,
        address payable _newOwner
    ) external;

    function getUserNumLocksForToken(
        address _user,
        address _lpToken
    ) external view returns (uint256);

    function getUserLockForTokenAtIndex(
        address _user,
        address _lpToken,
        uint256 _index
    ) external view returns (
        uint256 lockDate,
        uint256 amount,
        uint256 initialAmount,
        uint256 unlockDate,
        uint256 lockID,
        address owner
    );

    function getNumLocksForToken(address _lpToken) external view returns (uint256);

    // Fee structure
    function gFees() external view returns (
        uint256 ethFee,
        address secondaryFeeToken,
        uint256 secondaryTokenFee,
        uint256 secondaryTokenDiscount,
        uint256 liquidityFee,
        uint256 referralPercent,
        address referralToken,
        uint256 referralHold,
        uint256 referralDiscount
    );
}"
    },
    "contracts/LiquidityManager.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.30;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";
import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";
import "./interfaces/IUnicryptV2Locker.sol";

/**
 * @title LiquidityManager
 */
contract LiquidityManager is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;

    struct LPLockInfo {
        bool isLocked;
        uint256 lockId; // if available from locker
        uint256 lockIndex; // index returned by getUserNumLocksForToken - 1
        uint256 lockAmount;
        uint256 lockDate;
        uint256 unlockDate;
        address lockOwner;
    }

    uint256 public constant LOCK_1_MIN = 1 minutes;
    uint256 public constant LOCK_5_MINS = 5 minutes;
    uint256 public constant LOCK_1_MONTH = 30 days;
    uint256 public constant LOCK_6_MONTHS = 180 days;
    address public constant DEAD_ADDRESS =
        0x000000000000000000000000000000000000dEaD;

    IUniswapV2Router02 public router;
    IUnicryptV2Locker public unicryptLocker;

    // track locks per LP pair (keyed by lpPair address)
    mapping(address => LPLockInfo) public lpLockInfoByPair;

    // kept for backward compatibility with external callers; prefer using lpPair keyed mapping
    // mapping(address => LPLockInfo) public lpLockInfo; // removed to avoid confusion

    address public admin;

    event LPTokensBurned(address indexed tokenAddress, uint256 lpAmount);
    event LPTokensLocked(
        address indexed tokenAddress,
        uint256 lpAmount,
        uint256 unlockTime
    );
    event LPTokensUnlocked(address indexed tokenAddress, uint256 lpAmount);
    event LPLockedWithUnicrypt(
        address indexed tokenAddress,
        address indexed lpPair,
        uint256 amount,
        uint256 unlockDate,
        uint256 lockId,
        uint256 lockIndex
    );
    event LPUnlockedFromUnicrypt(
        address indexed tokenAddress,
        address indexed lpPair,
        uint256 amount
    );
    event LiquidityRemoved(uint256 amountA, uint256 amountB);
    event AdminChanged(address indexed previousAdmin, address indexed newAdmin);

    modifier onlyOwnerOrAdmin() {
        require(
            msg.sender == owner() || msg.sender == admin,
            "Not owner or admin"
        );
        _;
    }

    constructor(address _router) Ownable(msg.sender) {
        require(_router != address(0), "Router zero");
        router = IUniswapV2Router02(_router);
        admin = msg.sender;
    }

    /**
     * @notice Set Unicrypt locker address
     */
    function setUnicryptLocker(
        address _unicryptLocker
    ) external onlyOwnerOrAdmin {
        unicryptLocker = IUnicryptV2Locker(_unicryptLocker);
    }

    /**
     * @notice Set or change admin
     */
    function setAdmin(address _admin) external onlyOwner {
        emit AdminChanged(admin, _admin);
        admin = _admin;
    }

    /**
     * @notice Manage LP stored in this contract according to option.
     * @param tokenAddress Token address (for bookkeeping/events)
     * @param lpPair LP token pair address
     * @param dev Developer address to be set as lock owner on Unicrypt
     * @param lpManagementOption Option: 0 burn, 1 lock 1 month, 2 lock 6 months, 3/4 testing short locks
     */
    function handleLPManagement(
        address tokenAddress,
        address lpPair,
        address dev,
        uint8 lpManagementOption
    ) external onlyOwnerOrAdmin nonReentrant returns (address lpOwner) {
        require(lpPair != address(0), "LP pair zero");

        uint256 lpBalance = IERC20(lpPair).balanceOf(address(this));
        if (lpBalance == 0) return address(0);

        if (lpManagementOption == 0) {
            // burn (send to dead address) using safeTransfer
            IERC20(lpPair).safeTransfer(DEAD_ADDRESS, lpBalance);
            emit LPTokensBurned(tokenAddress, lpBalance);
            return DEAD_ADDRESS; // LP tokens burned, owner is dead address
        } else if (lpManagementOption == 1) {
            _lockLPWithUnicrypt(
                tokenAddress,
                lpPair,
                lpBalance,
                dev,
                LOCK_1_MONTH
            );
            return dev; // LP tokens locked, owner is dev
        } else if (lpManagementOption == 2) {
            _lockLPWithUnicrypt(
                tokenAddress,
                lpPair,
                lpBalance,
                dev,
                LOCK_6_MONTHS
            );
            return dev; // LP tokens locked, owner is dev
        } else if (lpManagementOption == 3) {
            _lockLPWithUnicrypt(
                tokenAddress,
                lpPair,
                lpBalance,
                dev,
                LOCK_1_MIN
            );
            return dev; // LP tokens locked for 1 minute (testing)
        } else if (lpManagementOption == 4) {
            _lockLPWithUnicrypt(
                tokenAddress,
                lpPair,
                lpBalance,
                dev,
                LOCK_5_MINS
            );
            return dev; // LP tokens locked for 5 minutes (testing)
        } else {
            revert("Invalid option");
        }
    }

    /**
     * @dev Internal helper to lock LP into Unicrypt. This function does basic checks
     * and records lock index and amount. Because different Unicrypt versions have
     * different return values, we read user lock count after the call and store index safely.
     */
    function _lockLPWithUnicrypt(
        address tokenAddress,
        address lpPair,
        uint256 amount,
        address dev,
        uint256 lockDuration
    ) internal {
        require(address(unicryptLocker) != address(0), "No locker");
        require(amount > 0, "No LP to lock");
        require(lpPair != address(0), "LP pair zero");
        require(dev != address(0), "Dev zero");

        uint256 unlockDate = block.timestamp + lockDuration;

        // Approve locker to transfer LP tokens from this contract
        IERC20(lpPair).approve(address(unicryptLocker), 0);
        IERC20(lpPair).approve(address(unicryptLocker), type(uint256).max);

        // Read fee and ensure we have ETH to pay it
        (uint256 ethFee, , , , , , , , ) = unicryptLocker.gFees();
        require(address(this).balance >= ethFee, "Insufficient ETH for fee");

        // Use try/catch to bubble revert reason where possible
        try
            unicryptLocker.lockLPToken{value: ethFee}(
                lpPair,
                amount,
                unlockDate,
                payable(address(0)),
                true,
                payable(dev)
            )
        {
            // After successful lock we query number of locks for the user to determine index
            uint256 userLocks = unicryptLocker.getUserNumLocksForToken(
                dev,
                lpPair
            );
            require(userLocks > 0, "No user locks reported");

            uint256 lockIndex = userLocks - 1;

            // We can't always reliably read lockId from the return value of lockLPToken
            // because Unicrypt implementations differ, so we store 0 if not available.
            // Consumer can call getLPLockInfoByPair to see recorded unlock date and lockIndex.

            lpLockInfoByPair[lpPair] = LPLockInfo({
                isLocked: true,
                lockId: 0,
                lockIndex: lockIndex,
                lockAmount: amount,
                lockDate: block.timestamp,
                unlockDate: unlockDate,
                lockOwner: dev
            });

            emit LPLockedWithUnicrypt(
                tokenAddress,
                lpPair,
                amount,
                unlockDate,
                0,
                lockIndex
            );
        } catch {
            revert("Lock fail");
        }

        // reset approval to 0 as a best practice
        IERC20(lpPair).approve(address(unicryptLocker), 0);
    }

    /**
     * @notice Remove liquidity from a token/WETH pair held by this contract.
     * The function checks pair existence and that the LP balance > 0.
     */
    function removeLiquidity(
        address tokenA,
        address tokenB
    ) external onlyOwnerOrAdmin nonReentrant returns (uint256, uint256) {
        address token0 = tokenA;
        address token1 = tokenB;
        if (tokenA > tokenB) {
            token0 = tokenB;
            token1 = tokenA;
        }
        address pair = IUniswapV2Factory(router.factory()).getPair(
            token0,
            token1
        );
        require(pair != address(0), "Pair doesn't exist");

        uint256 liquidity = IERC20(pair).balanceOf(address(this));
        require(liquidity > 0, "No liquidity");
        IERC20(pair).approve(address(router), 0);
        IERC20(pair).approve(address(router), liquidity);

        (uint256 amountA, uint256 amountB) = router.removeLiquidity(
            token0,
            token1,
            liquidity,
            0,
            0,
            address(this),
            block.timestamp
        );

        uint256 amountToken;
        uint256 amountETH;
        if (token0 == router.WETH()) {
            amountETH = amountA;
            amountToken = amountB;
        } else if (token1 == router.WETH()) {
            amountETH = amountB;
            amountToken = amountA;
        } else {
            revert("No WETH pair");
        }

        emit LiquidityRemoved(amountToken, amountETH);
        return (amountToken, amountETH);
    }

    /**
     * @notice Add liquidity (token + ETH) and send LP tokens to lpOwner
     */
    function addLiquidity(
        address token,
        address lpOwner,
        uint256 tokenAmount,
        uint256 ethAmount
    ) external payable onlyOwnerOrAdmin nonReentrant returns (uint256 liquidity) {
        require(token != address(0), "Token zero");
        require(lpOwner != address(0), "LP owner zero");
        require(tokenAmount > 0 || ethAmount > 0, "Zero amounts");

        IERC20(token).approve(address(router), 0);
        IERC20(token).approve(address(router), type(uint256).max);

        (, , liquidity) = router.addLiquidityETH{value: ethAmount}(
            token,
            tokenAmount,
            0,
            0,
            lpOwner,
            block.timestamp + 500
        );

        return liquidity;
    }

    /**
     * @notice Mark LP record as unlocked in internal bookkeeping. IMPORTANT: this does NOT
     * automatically withdraw LP from Unicrypt locker. Use Unicrypt UI/contract to withdraw
     * the LP tokens and then call this function to update local state. This avoids making
     * assumptions about Unicrypt's withdraw function signature in this integrator contract.
     */
    function unlockLP(
        address tokenAddress,
        address lpPair
    ) external onlyOwnerOrAdmin {
        LPLockInfo storage lockInfo = lpLockInfoByPair[lpPair];

        require(lockInfo.isLocked, "Not locked");

        // simply update local bookkeeping. The actual LP withdrawal must be performed
        // by owner/admin using the Unicrypt locker interface (off-chain UI or a custom call).
        lockInfo.isLocked = false;

        emit LPUnlockedFromUnicrypt(tokenAddress, lpPair, lockInfo.lockAmount);
    }

    /**
     * @notice Get lock info for a given LP pair (preferred over old token-keyed getter)
     */
    function getLPLockInfoByPair(
        address lpPair
    )
        external
        view
        returns (
            bool isUnicryptLocked,
            uint256 unicryptUnlockDate,
            uint256 unicryptLockAmount,
            address lockOwner,
            uint256 lockIndex
        )
    {
        LPLockInfo storage lockInfo = lpLockInfoByPair[lpPair];
        return (
            lockInfo.isLocked,
            lockInfo.unlockDate,
            lockInfo.lockAmount,
            lockInfo.lockOwner,
            lockInfo.lockIndex
        );
    }

    function withdrawETH(
        uint256 amount
    ) external onlyOwnerOrAdmin nonReentrant {
        require(amount <= address(this).balance, "Invalid amt");
        (bool success, ) = payable(msg.sender).call{value: amount}("");
        require(success, "Transfer fail");
    }

    function withdrawToken(
        address token,
        uint256 amount
    ) external onlyOwnerOrAdmin nonReentrant {
        require(token != address(0), "Token zero");
        uint256 balance = IERC20(token).balanceOf(address(this));
        require(amount <= balance, "Invalid amt");
        IERC20(token).safeTransfer(msg.sender, amount);
    }

    function unicryptLockerAddress() external view returns (address) {
        return address(unicryptLocker);
    }

    receive() external payable {}
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 1
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}

Tags:
ERC20, ERC165, Multisig, Burnable, Swap, Liquidity, Upgradeable, Multi-Signature, Factory|addr:0x52f4e132b297148e04679119ec7a212b6a8c6868|verified:true|block:23418852|tx:0x0bc0050d61dc07bf03ae93f338c0fad4d7a494760c1b609f3aabc912e2518e48|first_check:1758551175

Submitted on: 2025-09-22 16:26:16

Comments

Log in to comment.

No comments yet.