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feat: update _handleCallback, add verifyCallback with docs

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This commit is contained in:
royvardhan
2025-02-17 21:51:09 +05:30
parent 14e5c127c6
commit 076586d776
4 changed files with 92 additions and 44 deletions
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73
foundry/src/executors/UniswapV3Executor.sol
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@@ -29,11 +29,10 @@ contract UniswapV3Executor is IExecutor, ICallback {
}
// slither-disable-next-line locked-ether
function swap(uint256 amountIn, bytes calldata data)
external
payable
returns (uint256 amountOut)
{
function swap(
uint256 amountIn,
bytes calldata data
) external payable returns (uint256 amountOut) {
(
address tokenIn,
address tokenOut,
@@ -76,7 +75,9 @@ contract UniswapV3Executor is IExecutor, ICallback {
abi.encodeWithSelector(
ICallback.handleCallback.selector,
abi.encodePacked(
amount0Delta, amount1Delta, data[:data.length - 20]
amount0Delta,
amount1Delta,
data[:data.length - 20]
)
)
);
@@ -91,28 +92,43 @@ contract UniswapV3Executor is IExecutor, ICallback {
}
}
function handleCallback(bytes calldata msgData)
external
returns (bytes memory result)
{
(int256 amount0Delta, int256 amount1Delta) =
abi.decode(msgData[:64], (int256, int256));
function handleCallback(
bytes calldata msgData
) external returns (bytes memory result) {
(int256 amount0Delta, int256 amount1Delta) = abi.decode(
msgData[:64],
(int256, int256)
);
address tokenIn = address(bytes20(msgData[64:84]));
address tokenOut = address(bytes20(msgData[84:104]));
uint24 poolFee = uint24(bytes3(msgData[104:107]));
// slither-disable-next-line unused-return
CallbackValidationV2.verifyCallback(factory, tokenIn, tokenOut, poolFee);
verifyCallback(msgData[64:]);
uint256 amountOwed =
amount0Delta > 0 ? uint256(amount0Delta) : uint256(amount1Delta);
uint256 amountOwed = amount0Delta > 0
? uint256(amount0Delta)
: uint256(amount1Delta);
IERC20(tokenIn).safeTransfer(msg.sender, amountOwed);
return abi.encode(amountOwed, tokenIn);
}
function _decodeData(bytes calldata data)
function verifyCallback(bytes calldata data) public view {
address tokenIn = address(bytes20(data[0:20]));
address tokenOut = address(bytes20(data[20:40]));
uint24 poolFee = uint24(bytes3(data[40:43]));
// slither-disable-next-line unused-return
CallbackValidationV2.verifyCallback(
factory,
tokenIn,
tokenOut,
poolFee
);
}
function _decodeData(
bytes calldata data
)
internal
pure
returns (
@@ -135,11 +151,18 @@ contract UniswapV3Executor is IExecutor, ICallback {
zeroForOne = uint8(data[83]) > 0;
}
function _makeV3CallbackData(address tokenIn, address tokenOut, uint24 fee)
internal
view
returns (bytes memory)
{
return abi.encodePacked(tokenIn, tokenOut, fee, self);
function _makeV3CallbackData(
address tokenIn,
address tokenOut,
uint24 fee
) internal view returns (bytes memory) {
return
abi.encodePacked(
tokenIn,
tokenOut,
fee,
ICallback.handleCallback.selector,
self
);
}
}