76aa419320
- CCIP/trustless bridge contracts, GRU tokens, DEX/PMM tests, reserve vault. - Token-aggregation service routes, planner, chain config, relay env templates. - Config snapshots and multi-chain deployment markdown updates. - gitignore services/btc-intake/dist/ (tsc output); do not track dist. Run forge build && forge test before deploy (large solc graph). Made-with: Cursor
58 lines
2.2 KiB
Solidity
58 lines
2.2 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
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import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
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import {IRouterClient} from "../ccip/IRouterClient.sol";
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/**
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* @title CrossChainFlashRepayReceiver
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* @notice **Destination-chain** CCIP receiver: forwards received ERC-20s to a recipient encoded in `message.data`.
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* @dev Intended pairing with `CrossChainFlashBorrower` / bridge senders. `msg.sender` must be the CCIP router.
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* `data` encoding: `abi.encode(address recipient, bytes32 obligationId)` where `obligationId` is opaque (indexing / ops).
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* **Repaying the source-chain flash vault** requires a **separate** flow (second tx / bridge back); this contract does not pull debt on source.
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*/
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contract CrossChainFlashRepayReceiver {
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using SafeERC20 for IERC20;
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IRouterClient public immutable ccipRouter;
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event CrossChainDelivered(
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bytes32 indexed messageId,
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uint64 indexed sourceChainSelector,
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address indexed recipient,
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address token,
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uint256 amount,
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bytes32 obligationId
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);
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error OnlyRouter();
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error NoTokens();
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error BadData();
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constructor(address ccipRouter_) {
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require(ccipRouter_ != address(0), "CrossChainFlashRepayReceiver: zero router");
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ccipRouter = IRouterClient(ccipRouter_);
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}
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modifier onlyRouter() {
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if (msg.sender != address(ccipRouter)) revert OnlyRouter();
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_;
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}
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function ccipReceive(IRouterClient.Any2EVMMessage calldata message) external onlyRouter {
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_deliver(message);
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}
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function _deliver(IRouterClient.Any2EVMMessage calldata m) private {
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if (m.tokenAmounts.length == 0) revert NoTokens();
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IRouterClient.TokenAmount calldata ta = m.tokenAmounts[0];
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if (ta.token == address(0) || ta.amount == 0) revert NoTokens();
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(address recipient, bytes32 obligationId) = abi.decode(m.data, (address, bytes32));
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if (recipient == address(0)) revert BadData();
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IERC20(ta.token).safeTransfer(recipient, ta.amount);
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emit CrossChainDelivered(m.messageId, m.sourceChainSelector, recipient, ta.token, ta.amount, obligationId);
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}
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}
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