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32 lines
1.1 KiB
32 lines
1.1 KiB
2 years ago
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import {IAuthority} from "./IAuthority.sol";
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library AuthorityUtils {
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/**
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* @dev Since `AccessManager` implements an extended IAuthority interface, invoking `canCall` with backwards compatibility
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* for the preexisting `IAuthority` interface requires special care to avoid reverting on insufficient return data.
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* This helper function takes care of invoking `canCall` in a backwards compatible way without reverting.
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*/
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function canCallWithDelay(
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address authority,
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address caller,
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address target,
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bytes4 selector
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) internal view returns (bool allowed, uint32 delay) {
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(bool success, bytes memory data) = authority.staticcall(
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abi.encodeCall(IAuthority.canCall, (caller, target, selector))
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);
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if (success) {
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if (data.length >= 0x40) {
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(allowed, delay) = abi.decode(data, (bool, uint32));
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} else if (data.length >= 0x20) {
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allowed = abi.decode(data, (bool));
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}
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}
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return (allowed, delay);
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}
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}
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