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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.19; | ||
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| import {IOracle} from '../interfaces/IOracle.sol'; | ||
| import {IValidator} from '../interfaces/IValidator.sol'; | ||
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| contract Validator is IValidator { | ||
| /// @inheritdoc IValidator | ||
| IOracle public immutable ORACLE; | ||
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| constructor(IOracle _oracle) payable { | ||
| ORACLE = _oracle; | ||
| } | ||
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| /** | ||
| * @notice Computes the id a given request | ||
| * | ||
| * @param _request The request to compute the id for | ||
| * @return _id The id the request | ||
| */ | ||
| function _getId(IOracle.Request calldata _request) internal pure returns (bytes32 _id) { | ||
| _id = keccak256(abi.encode(_request)); | ||
| } | ||
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| /** | ||
| * @notice Computes the id a given response | ||
| * | ||
| * @param _response The response to compute the id for | ||
| * @return _id The id the response | ||
| */ | ||
| function _getId(IOracle.Response calldata _response) internal pure returns (bytes32 _id) { | ||
| _id = keccak256(abi.encode(_response)); | ||
| } | ||
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| /** | ||
| * @notice Computes the id a given dispute | ||
| * | ||
| * @param _dispute The dispute to compute the id for | ||
| * @return _id The id the dispute | ||
| */ | ||
| function _getId(IOracle.Dispute calldata _dispute) internal pure returns (bytes32 _id) { | ||
| _id = keccak256(abi.encode(_dispute)); | ||
| } | ||
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| /** | ||
| * @notice Validates the correctness and existance of a request-response pair | ||
| * | ||
| * @param _request The request to compute the id for | ||
| * @param _response The response to compute the id for | ||
| * @return _responseId The id the response | ||
| */ | ||
| function _validateResponse( | ||
| IOracle.Request calldata _request, | ||
| IOracle.Response calldata _response | ||
| ) internal view returns (bytes32 _responseId) { | ||
| bytes32 _requestId = _getId(_request); | ||
| _responseId = _getId(_response); | ||
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| if (_response.requestId != _requestId) revert Validator_InvalidResponseBody(); | ||
| if (ORACLE.responseCreatedAt(_responseId) == 0) revert Validator_InvalidResponse(); | ||
| } | ||
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| /** | ||
| * @notice Validates the correctness of a request-dispute pair | ||
| * | ||
| * @param _request The request to compute the id for | ||
| * @param _dispute The dispute to compute the id for | ||
| * @return _disputeId The id the dispute | ||
| */ | ||
| function _validateDispute( | ||
| IOracle.Request calldata _request, | ||
| IOracle.Dispute calldata _dispute | ||
| ) internal view returns (bytes32 _disputeId) { | ||
| bytes32 _requestId = _getId(_request); | ||
| _disputeId = _getId(_dispute); | ||
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| if (_dispute.requestId != _requestId) revert Validator_InvalidDisputeBody(); | ||
| if (ORACLE.disputeCreatedAt(_disputeId) == 0) revert Validator_InvalidDispute(); | ||
| } | ||
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| /** | ||
| * @notice Validates the correctness of a response-dispute pair | ||
| * | ||
| * @param _response The response to compute the id for | ||
| * @param _dispute The dispute to compute the id for | ||
| * @return _disputeId The id the dispute | ||
| */ | ||
| function _validateDispute( | ||
| IOracle.Response calldata _response, | ||
| IOracle.Dispute calldata _dispute | ||
| ) internal view returns (bytes32 _disputeId) { | ||
| bytes32 _responseId = _getId(_response); | ||
| _disputeId = _getId(_dispute); | ||
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| if (_dispute.responseId != _responseId) revert Validator_InvalidDisputeBody(); | ||
| if (ORACLE.disputeCreatedAt(_disputeId) == 0) revert Validator_InvalidDispute(); | ||
| } | ||
|
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| /** | ||
| * @notice Validates the correctness of a request-response-dispute triplet | ||
| * | ||
| * @param _request The request to compute the id for | ||
| * @param _response The response to compute the id for | ||
| * @param _dispute The dispute to compute the id for | ||
| * @return _responseId The id the response | ||
| * @return _disputeId The id the dispute | ||
| */ | ||
| function _validateResponseAndDispute( | ||
| IOracle.Request calldata _request, | ||
| IOracle.Response calldata _response, | ||
| IOracle.Dispute calldata _dispute | ||
| ) internal view returns (bytes32 _responseId, bytes32 _disputeId) { | ||
| bytes32 _requestId = _getId(_request); | ||
| _responseId = _getId(_response); | ||
| _disputeId = _getId(_dispute); | ||
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| if (_response.requestId != _requestId) revert Validator_InvalidResponseBody(); | ||
| if (_dispute.requestId != _requestId || _dispute.responseId != _responseId) revert Validator_InvalidDisputeBody(); | ||
| if (ORACLE.disputeCreatedAt(_disputeId) == 0) revert Validator_InvalidDispute(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.19; | ||
|
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| import {IOracle} from './IOracle.sol'; | ||
|
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| /** | ||
| * @title Validator | ||
| * @notice Contract to validate requests, responses, and disputes | ||
| */ | ||
| interface IValidator { | ||
| /*/////////////////////////////////////////////////////////////// | ||
| ERRORS | ||
| //////////////////////////////////////////////////////////////*/ | ||
|
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| /** | ||
| * @notice Thrown when the response provided does not match the request | ||
| */ | ||
| error Validator_InvalidResponseBody(); | ||
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| /** | ||
| * @notice Thrown when the dispute provided does not match the request or response | ||
| */ | ||
| error Validator_InvalidDisputeBody(); | ||
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| /** | ||
| * @notice Thrown when the response provided does not exist | ||
| */ | ||
| error Validator_InvalidResponse(); | ||
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| /** | ||
| * @notice Thrown when the dispute provided does not exist | ||
| */ | ||
| error Validator_InvalidDispute(); | ||
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| /*/////////////////////////////////////////////////////////////// | ||
| VARIABLES | ||
| //////////////////////////////////////////////////////////////*/ | ||
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| /** | ||
| * @notice Returns the address of the oracle | ||
| * | ||
| * @return _oracle The address of the oracle | ||
| */ | ||
| function ORACLE() external view returns (IOracle _oracle); | ||
| } |
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