DCIPs/assets/eip-6366/example/APermissioned.sol

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// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.7;
import "../contracts/interfaces/IEIP6366Core.sol";
import "../contracts/interfaces/IEIP6366Error.sol";
/**
* @dev Centralized definition of all possible permissions and roles
*/
contract APermissioned {
IEIP6366Core private opt;
/**
* @dev No permission
*/
uint256 internal constant PERMISSION_NONE = 0;
/**
* @dev Blacklisted
*/
uint256 internal constant PERMISSION_DENIED = 2 ** 0;
/**
* @dev Permission to vote
*/
uint256 internal constant PERMISSION_VOTE = 2 ** 1;
/**
* @dev Permission to transfer permission token
*/
uint256 internal constant PERMISSION_TRANSFER = 2 ** 2;
/**
* @dev Permission to execute
*/
uint256 internal constant PERMISSION_EXECUTE = 2 ** 3;
/**
* @dev Permission to create
*/
uint256 internal constant PERMISSION_CREATE = 2 ** 4;
/**
* @dev Admin role
*/
uint256 internal constant ROLE_ADMIN =
PERMISSION_VOTE | PERMISSION_EXECUTE | PERMISSION_CREATE;
/**
* @dev Operator role
*/
uint256 internal constant ROLE_OPERATOR =
PERMISSION_EXECUTE | PERMISSION_VOTE;
/**
* @dev Allow the actor who has required permission
*/
modifier allowOwner(uint256 _required) {
if (!opt.permissionRequire(opt.permissionOf(msg.sender), _required)) {
revert IEIP6366Error.AccessDenied(
msg.sender,
msg.sender,
_required
);
}
_;
}
/**
* @dev Deny blacklisted address
*/
modifier notBlacklisted() {
if (
opt.permissionRequire(
opt.permissionOf(msg.sender),
PERMISSION_DENIED
)
) {
revert IEIP6366Error.AccessDenied(
msg.sender,
msg.sender,
PERMISSION_DENIED
);
}
_;
}
/**
* @dev Allow permission owner or delegatee
*/
modifier allow(address _owner, uint256 _required) {
// The actor should be the permission owner or delegatee
if (!opt.hasPermission(_owner, msg.sender, _required)) {
revert IEIP6366Error.AccessDenied(_owner, msg.sender, _required);
}
_;
}
/**
* @dev Constructor
*/
constructor(address _opt) {
opt = IEIP6366Core(_opt);
}
}