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
63 lines
2.5 KiB
Solidity
63 lines
2.5 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 {ISwapRouter} from "../bridge/trustless/interfaces/ISwapRouter.sol";
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interface IDODOMultiHopSwapExactIn {
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function swapExactIn(address pool, address tokenIn, uint256 amountIn, uint256 minAmountOut)
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external
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returns (uint256 amountOut);
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}
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/**
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* @title DODOToUniswapV3MultiHopExternalUnwinder
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* @notice Unwinds through a DODO PMM first hop and a Uniswap V3 final hop.
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* @dev `data` must be abi.encode(address dodoPool, address intermediateToken, uint256 minIntermediateOut, bytes uniswapPath).
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* `uniswapPath` is the standard exactInput path beginning with `intermediateToken` and ending with `tokenOut`.
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*/
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contract DODOToUniswapV3MultiHopExternalUnwinder {
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using SafeERC20 for IERC20;
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address public immutable integration;
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address public immutable router;
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error BadParams();
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constructor(address integration_, address router_) {
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integration = integration_;
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router = router_;
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}
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function unwind(address tokenIn, address tokenOut, uint256 amountIn, uint256 minAmountOut, bytes calldata data)
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external
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returns (uint256 amountOut)
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{
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if (tokenIn == address(0) || tokenOut == address(0) || tokenIn == tokenOut || amountIn == 0) revert BadParams();
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(address dodoPool, address intermediateToken, uint256 minIntermediateOut, bytes memory uniswapPath) =
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abi.decode(data, (address, address, uint256, bytes));
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if (dodoPool == address(0) || intermediateToken == address(0) || intermediateToken == tokenIn || intermediateToken == tokenOut) {
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revert BadParams();
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}
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if (uniswapPath.length < 43) revert BadParams();
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IERC20(tokenIn).safeTransferFrom(msg.sender, address(this), amountIn);
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IERC20(tokenIn).forceApprove(integration, amountIn);
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uint256 intermediateOut =
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IDODOMultiHopSwapExactIn(integration).swapExactIn(dodoPool, tokenIn, amountIn, minIntermediateOut);
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IERC20(intermediateToken).forceApprove(router, intermediateOut);
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amountOut = ISwapRouter(router).exactInput(
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ISwapRouter.ExactInputParams({
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path: uniswapPath,
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recipient: msg.sender,
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deadline: block.timestamp + 300,
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amountIn: intermediateOut,
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amountOutMinimum: minAmountOut
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})
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);
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}
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}
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