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feat: add
TrustedCodehashAccess contract and interface
This enables whitelisting in the staking manager contract using the `TrustedCodehashAccess` interface. These changes were largely taken from #39 with few changes: - Due to different OZ versions, `Ownable()` constructor needs to be called with owner Closes #15
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.26; | ||
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| import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; | ||
| import { ITrustedCodehashAccess } from "./interfaces/ITrustedCodehashAccess.sol"; | ||
| /** | ||
| * @title TrustedCodehashAccess | ||
| * @author Ricardo Guilherme Schmidt <ricardo3@status.im> | ||
| * @notice Ensures that only specific contract bytecode hashes are trusted to | ||
| * interact with the functions using the `onlyTrustedCodehash` modifier. | ||
| */ | ||
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| contract TrustedCodehashAccess is ITrustedCodehashAccess, Ownable { | ||
| mapping(bytes32 codehash => bool permission) private trustedCodehashes; | ||
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| /** | ||
| * @notice Restricts access based on the codehash of the caller. | ||
| * Only contracts with trusted codehashes can execute functions using this modifier. | ||
| */ | ||
| modifier onlyTrustedCodehash() { | ||
| bytes32 codehash = msg.sender.codehash; | ||
| if (!trustedCodehashes[codehash]) { | ||
| revert TrustedCodehashAccess__UnauthorizedCodehash(); | ||
| } | ||
| _; | ||
| } | ||
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| constructor(address _owner) Ownable(_owner) { } | ||
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| /** | ||
| * @notice Allows the owner to set or update the trust status for a contract's codehash. | ||
| * @dev Emits the `TrustedCodehashUpdated` event whenever a codehash is updated. | ||
| * @param _codehash The bytecode hash of the contract. | ||
| * @param _trusted Boolean flag to designate the contract as trusted or not. | ||
| */ | ||
| function setTrustedCodehash(bytes32 _codehash, bool _trusted) external onlyOwner { | ||
| trustedCodehashes[_codehash] = _trusted; | ||
| emit TrustedCodehashUpdated(_codehash, _trusted); | ||
| } | ||
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| /** | ||
| * @notice Checks if a contract's codehash is trusted to interact with protected functions. | ||
| * @param _codehash The bytecode hash of the contract. | ||
| * @return bool True if the codehash is trusted, false otherwise. | ||
| */ | ||
| function isTrustedCodehash(bytes32 _codehash) external view returns (bool) { | ||
| return trustedCodehashes[_codehash]; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.26; | ||
|
|
||
| /** | ||
| * @title TrustedCodehashAccess | ||
| * @author Ricardo Guilherme Schmidt <ricardo3@status.im> | ||
| * @notice Ensures that only specific contract bytecode hashes are trusted to | ||
| * interact with the functions using the `onlyTrustedCodehash` modifier. | ||
| */ | ||
| interface ITrustedCodehashAccess { | ||
| error TrustedCodehashAccess__UnauthorizedCodehash(); | ||
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| event TrustedCodehashUpdated(bytes32 indexed codehash, bool trusted); | ||
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| /** | ||
| * @notice Allows the owner to set or update the trust status for a contract's codehash. | ||
| * @dev Emits the `TrustedCodehashUpdated` event whenever a codehash is updated. | ||
| * @param _codehash The bytecode hash of the contract. | ||
| * @param _trusted Boolean flag to designate the contract as trusted or not. | ||
| */ | ||
| function setTrustedCodehash(bytes32 _codehash, bool _trusted) external; | ||
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| /** | ||
| * @notice Checks if a contract's codehash is trusted to interact with protected functions. | ||
| * @param _codehash The bytecode hash of the contract. | ||
| * @return bool True if the codehash is trusted, false otherwise. | ||
| */ | ||
| function isTrustedCodehash(bytes32 _codehash) external view returns (bool); | ||
| } |
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