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Merge pull request #17 from propeller-heads/router/hr/ENG-4049-withdraw-methods

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This commit is contained in:
Harsh Vardhan Roy
2025-01-22 22:40:06 +05:30
committed by GitHub
parent 60f4274304 50f3de9caf
commit eb6d2ec1dc
1 changed files with 50 additions and 2 deletions
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52
foundry/src/TychoRouter.sol
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@@ -3,10 +3,17 @@ pragma solidity ^0.8.28;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@permit2/src/interfaces/IAllowanceTransfer.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
error TychoRouter__WithdrawalFailed();
error TychoRouter__InvalidReceiver();
contract TychoRouter is AccessControl {
IAllowanceTransfer public immutable permit2;
using SafeERC20 for IERC20;
//keccak256("NAME_OF_ROLE") : save gas on deployment
bytes32 public constant EXECUTOR_SETTER_ROLE =
0x6a1dd52dcad5bd732e45b6af4e7344fa284e2d7d4b23b5b09cb55d36b0685c87;
@@ -17,6 +24,10 @@ contract TychoRouter is AccessControl {
bytes32 public constant FUND_RESCUER_ROLE =
0x912e45d663a6f4cc1d0491d8f046e06c616f40352565ea1cdb86a0e1aaefa41b;
event Withdrawal(
address indexed token, uint256 amount, address indexed receiver
);
constructor(address _permit2) {
permit2 = IAllowanceTransfer(_permit2);
_grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
@@ -60,9 +71,46 @@ contract TychoRouter is AccessControl {
// TODO
}
/**
* @dev Allows withdrawing any ERC20 funds if funds get stuck in case of a bug.
*/
function withdraw(IERC20[] memory tokens, address receiver)
external
onlyRole(FUND_RESCUER_ROLE)
{
if (receiver == address(0)) revert TychoRouter__InvalidReceiver();
for (uint256 i = 0; i < tokens.length; i++) {
// slither-disable-next-line calls-loop
uint256 tokenBalance = tokens[i].balanceOf(address(this));
if (tokenBalance > 0) {
emit Withdrawal(address(tokens[i]), tokenBalance, receiver);
tokens[i].safeTransfer(receiver, tokenBalance);
}
}
}
/**
* @dev Allows withdrawing any NATIVE funds if funds get stuck in case of a bug.
* The contract should never hold any NATIVE tokens for security reasons.
*/
function withdrawNative(address receiver)
external
onlyRole(FUND_RESCUER_ROLE)
{
if (receiver == address(0)) revert TychoRouter__InvalidReceiver();
uint256 amount = address(this).balance;
if (amount > 0) {
emit Withdrawal(address(0), amount, receiver);
// slither-disable-next-line arbitrary-send-eth
bool success = payable(receiver).send(amount);
if (!success) revert TychoRouter__WithdrawalFailed();
}
}
/**
* @dev Allows this contract to receive native token
*/
// TODO Uncomment once withdraw method is implemented - or else Slither fails
// receive() external payable {}
receive() external payable {}
}