Contract 0x75d3fCE9FCa94afa2B130e5900BD0FeE103B3a3d

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "Initializable.sol";

import "IAuthManager.sol";


contract AuthManager is IAuthManager, Initializable {
    // mapping which contains roles for address
    mapping(address => bytes32[])  internal members;

    // constant for showing that element not found in array
    uint256 internal constant NOT_FOUND = type(uint256).max;

    // hash for SUPER role
    bytes32 public constant SUPER_ROLE = keccak256("SUPER_ROLE");

    // event emitted when new member for role added
    event AddMember(address member, bytes32 role);

    // event emitted when member removed from role
    event RemoveMember(address member, bytes32 role);

    /**
    * @notice Initialize contract after deploying
    * @param superior - address of member which granted with super role
    */
    function initialize(address superior) external initializer {
        if (superior == address(0)) {
            members[msg.sender] = [SUPER_ROLE];
            emit AddMember(msg.sender, SUPER_ROLE);
        } else {
            members[superior] = [SUPER_ROLE];
            emit AddMember(superior, SUPER_ROLE);
        }
    }

    /**
    * @notice Function returns roles array for member
    * @param _member - address of member
    */
    function roles(address _member) external view returns (bytes32[] memory) {
        return members[_member];
    }

    /**
    * @notice Check if member has a specific role
    * @param role - hash of role string
    * @param _member - address of member
    */
    function has(bytes32 role, address _member) external override view returns (bool) {
        return _find(members[_member], role) != NOT_FOUND;
    }

    /**
    * @notice Add new role for member. Only SUPER_ROLE can add new roles
    * @param role - hash of a role string
    * @param member - address of member
    */
    function add(bytes32 role, address member) external override {
        require(_find(members[msg.sender], SUPER_ROLE) != NOT_FOUND, "FORBIDDEN");

        bytes32[] storage _roles = members[member];

        require(_find(_roles, role) == NOT_FOUND, "ALREADY_MEMBER");
        _roles.push(role);
        emit AddMember(member, role);
    }

    /**
    * @notice Add new role for member by string. Only SUPER_ROLE can add new roles
    * @param roleString - role string
    * @param member - address of member
    */
    function addByString(string calldata roleString, address member) external {
        require(_find(members[msg.sender], SUPER_ROLE) != NOT_FOUND, "FORBIDDEN");

        bytes32[] storage _roles = members[member];
        bytes32 role = keccak256(bytes(roleString));

        require(_find(_roles, role) == NOT_FOUND, "ALREADY_MEMBER");
        _roles.push(role);
        emit AddMember(member, role);
    }

    /**
    * @notice Remove role from member. Only SUPER_ROLE can add new roles
    * @param role - hash of a role string
    * @param member - address of member
    */
    function remove(bytes32 role, address member) external override {
        require(_find(members[msg.sender], SUPER_ROLE) != NOT_FOUND, "FORBIDDEN");
        require(msg.sender != member || role != SUPER_ROLE, "INVALID");

        bytes32[] storage _roles = members[member];

        uint256 i = _find(_roles, role);
        require(i != NOT_FOUND, "MEMBER_NOT_FOUND");
        if (_roles.length == 1) {
            delete members[member];
        } else {
            if (i < _roles.length - 1) {
                _roles[i] = _roles[_roles.length - 1];
            }
            _roles.pop();
        }

        emit RemoveMember(member, role);
    }

    /**
    * @notice Search _role index in _roles array
    * @param _roles - array of roles hashes
    * @param _role - hash of role string
    */
    function _find(bytes32[] storage _roles, bytes32 _role) internal view returns (uint256) {
        for (uint256 i = 0; i < _roles.length; ++i) {
            if (_role == _roles[i]) {
                return i;
            }
        }
        return NOT_FOUND;
    }

}

// SPDX-License-Identifier: MIT

// solhint-disable-next-line compiler-version
pragma solidity ^0.8.0;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {

    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IAuthManager {
    function has(bytes32 role, address member) external view returns (bool);

    function add(bytes32 role, address member) external;

    function remove(bytes32 role, address member) external;
}

{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 10
  },
  "libraries": {
    "AuthManager.sol": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"member","type":"address"},{"indexed":false,"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"AddMember","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"member","type":"address"},{"indexed":false,"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"RemoveMember","type":"event"},{"inputs":[],"name":"SUPER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"member","type":"address"}],"name":"add","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"roleString","type":"string"},{"internalType":"address","name":"member","type":"address"}],"name":"addByString","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"_member","type":"address"}],"name":"has","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"superior","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"member","type":"address"}],"name":"remove","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_member","type":"address"}],"name":"roles","outputs":[{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"view","type":"function"}]

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