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back under the limit (removed emissary logic)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.27; | ||
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| import { ConsumerLib } from "./ConsumerLib.sol"; | ||
| import { ValidityLib } from "./ValidityLib.sol"; | ||
| import { EMISSARY_ASSIGNMENT_TYPEHASH } from "../types/EIP712Types.sol"; | ||
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| // An emissary can register claims on behalf of a sponsor that has assigned them. | ||
| // It works kind of like setApprovalForAll and applies to all locks. One caveat | ||
| // is that allocators still have to authorize any claims, which reduces the risk | ||
| // of a fully rogue emissary depending on the allocator in question. | ||
| // NOTE: this idea is inherently risky; think about whether it's worth it! | ||
| abstract contract EmissaryLib { | ||
| using ValidityLib for uint256; | ||
| using ValidityLib for address; | ||
| using ConsumerLib for uint256; | ||
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| event EmissaryAssignment(address indexed sponsor, address indexed emissary, bool assigned); | ||
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| error InvalidEmissary(address sponsor, address emissary); | ||
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| // TODO: optimize | ||
| mapping(address => mapping(address => bool)) private _emissaries; | ||
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| // TODO: this mapping already exists on The Compact; just use one of them! | ||
| mapping(address => mapping(bytes32 => bytes32)) private _registeredClaimHashes; | ||
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| function registerFor(address sponsor, bytes32 claimHash, bytes32 typehash) external returns (bool) { | ||
| // TODO: optimize | ||
| if (!_emissaries[sponsor][msg.sender]) { | ||
| revert InvalidEmissary(sponsor, msg.sender); | ||
| } | ||
| _registeredClaimHashes[sponsor][claimHash] = typehash; | ||
| return true; | ||
| } | ||
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| function registerFor(address sponsor, bytes32[2][] calldata claimHashesAndTypehashes) external returns (bool) { | ||
| // TODO: optimize | ||
| if (!_emissaries[sponsor][msg.sender]) { | ||
| revert InvalidEmissary(sponsor, msg.sender); | ||
| } | ||
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| return _registerFor(sponsor, claimHashesAndTypehashes); | ||
| } | ||
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| function assignEmissary(address sponsor, address emissary, uint256 nonce, uint256 expires, bool assigned, bytes calldata sponsorSignature) external returns (bool) { | ||
| expires.later(); | ||
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| bytes32 messageHash; | ||
| assembly ("memory-safe") { | ||
| let m := mload(0x40) // Grab the free memory pointer; memory will be left dirtied. | ||
| mstore(m, EMISSARY_ASSIGNMENT_TYPEHASH) | ||
| mstore(add(m, 0x20), emissary) | ||
| mstore(add(m, 0x40), nonce) | ||
| mstore(add(m, 0x60), expires) | ||
| mstore(add(m, 0x80), assigned) | ||
| messageHash := keccak256(m, 0xa0) | ||
| } | ||
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| // TODO: this function should be colocated with the rest of The Compact as it has the immutable args here | ||
| // messageHash.signedBy(sponsor, sponsorSignature, _INITIAL_DOMAIN_SEPARATOR.toLatest(_INITIAL_CHAIN_ID)); | ||
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| nonce.consumeNonceAsSponsor(sponsor); | ||
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| return _assignEmissary(sponsor, emissary, assigned); | ||
| } | ||
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| function assignEmissary(address emissary, bool assigned) external returns (bool) { | ||
| return _assignEmissary(msg.sender, emissary, assigned); | ||
| } | ||
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| function hasConsumedEmissaryAssignmentNonce(uint256 nonce, address sponsor) external view returns (bool consumed) { | ||
| consumed = sponsor.hasConsumedEmissaryAssignmentNonce(nonce); | ||
| } | ||
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| function _assignEmissary(address sponsor, address emissary, bool assigned) internal returns (bool) { | ||
| _emissaries[sponsor][emissary] = assigned; | ||
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| emit EmissaryAssignment(sponsor, emissary, assigned); | ||
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| return true; | ||
| } | ||
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| // TODO: this is already on the compact, just use one of them | ||
| function _registerFor(address sponsor, bytes32[2][] calldata claimHashesAndTypehashes) internal returns (bool) { | ||
| unchecked { | ||
| uint256 totalClaimHashes = claimHashesAndTypehashes.length; | ||
| for (uint256 i = 0; i < totalClaimHashes; ++i) { | ||
| bytes32[2] calldata claimHashAndTypehash = claimHashesAndTypehashes[i]; | ||
| _registeredClaimHashes[sponsor][claimHashAndTypehash[0]] = claimHashAndTypehash[1]; | ||
| } | ||
| } | ||
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| return true; | ||
| } | ||
| } |
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