Contract

Contract Source Code (Solidity)

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Outline

• interface IERC20
•    - function balanceOf(address _who)
•    - function transfer(address _to, uint25 ...
•  contract MixinAccount *
•    - function assignCustodian(address _cus ...
•    - function claim(address _asset)
•  contract MixinDepository
•    - function assignManagerAndCustodian(ad ...
•    - function assignAccountCustodian(uint2 ...
•    - function deploy(uint256 _index)

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/**
 *Submitted for verification at Etherscan.io on 2023-11-21
*/

// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.8.0 <0.9.0;

interface IERC20 {
    function balanceOf(address _who) external view returns (uint256);

    function transfer(address _to, uint256 _value) external returns (bool);
}

contract MixinAccount {
    address public immutable depository;
    address public custodian;

    constructor() {
        depository = msg.sender;
    }

    function assignCustodian(address _custodian) external {
        require(msg.sender == depository, "not depository");
        custodian = _custodian;
    }

    function claim(address _asset) external {
        if (_asset == address(0)) {
            uint256 value = address(this).balance;
            payable(custodian).transfer(value);
        } else {
            uint256 value = IERC20(_asset).balanceOf(address(this));
            IERC20(_asset).transfer(custodian, value);
        }
    }

    receive() external payable {}

    fallback() external payable {}
}

contract MixinDepository {
    address public manager;
    address public custodian;

    event DepositoryConstructed(
        address indexed manager,
        address indexed custodian,
        bytes code
    );

    event DepositoryManagerAssigned(address indexed manager);
    event DepositoryCustodianAssigned(address indexed custodian);

    mapping(uint256 => address) public contracts;
    mapping(address => uint256) public accounts;

    constructor(address _manager, address _custodian) {
        manager = _manager;
        custodian = _custodian;
        bytes memory code = type(MixinAccount).creationCode;
        emit DepositoryConstructed(manager, custodian, code);
    }

    function assignManagerAndCustodian(address _manager, address _custodian)
        external
    {
        require(msg.sender == manager, "not manager");
        manager = _manager;
        custodian = _custodian;
        emit DepositoryManagerAssigned(manager);
        emit DepositoryCustodianAssigned(custodian);
    }

    function assignAccountCustodian(uint256 _index) external {
        MixinAccount account = MixinAccount(payable(contracts[_index]));
        account.assignCustodian(custodian);
    }

    function deploy(uint256 _index) external returns (address) {
        address at = contracts[_index];
        if (at != address(0)) {
            require(accounts[at] == _index, "bad code");
            return at;
        }
        MixinAccount account = new MixinAccount{salt: bytes32(_index)}();
        account.assignCustodian(custodian);
        at = address(account);
        contracts[_index] = at;
        accounts[at] = _index;
        return at;
    }
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"_custodian","type":"address"}],"name":"assignCustodian","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_asset","type":"address"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"custodian","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"depository","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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ipfs://1379a8eefb80c8af245031cbea31e83a1e34946ca80286a3eec60e4b7e8cf13c