-
Notifications
You must be signed in to change notification settings - Fork 12
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Prathmesh Khandelwal
authored and
Prathmesh Khandelwal
committed
Aug 15, 2023
1 parent
8a4c09f
commit 6bafb93
Showing
1 changed file
with
74 additions
and
0 deletions.
There are no files selected for viewing
74 changes: 74 additions & 0 deletions
74
contracts/integration/GelatoxToken/GelatoxTokenLoxkboxAdapter.sol
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,74 @@ | ||
// SPDX-License-Identifier: UNLICENSED | ||
pragma solidity ^0.8.13; | ||
|
||
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; | ||
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; | ||
import {IXERC20} from "../../shared/IXERC20/IXERC20.sol"; | ||
import {IXERC20Lockbox} from "../../shared/IXERC20/IXERC20Lockbox.sol"; | ||
import {IXReceiver} from "@connext/interfaces/core/IXReceiver.sol"; | ||
|
||
contract GelatoLockboxAdapter is IXReceiver { | ||
IXERC20Lockbox public lockbox; | ||
IERC20 public erc20; | ||
IXERC20 public xerc20; | ||
|
||
constructor(address _lockbox, address _erc20, address _xerc20) { | ||
lockbox = IXERC20Lockbox(_lockbox); | ||
erc20 = IERC20(_erc20); | ||
xerc20 = IXERC20(_xerc20); | ||
} | ||
|
||
/// @notice Deposit ERC20s into the Lockbox | ||
/// @param _amount Amount of ERC20s to use | ||
/// @param _recipient Recipient of the xERC20s | ||
function deposit(uint256 _amount, address _recipient) internal { | ||
require(_amount > 0, "Zero amount"); | ||
IERC20 _xerc20 = IERC20(address(xerc20)); | ||
|
||
if (erc20.allowance(address(this), address(lockbox)) < _amount) { | ||
erc20.approve(address(lockbox), type(uint256).max); | ||
} | ||
lockbox.deposit(_amount); | ||
|
||
// Transfer the xERC20s to the recipient | ||
SafeERC20.safeTransfer(_xerc20, _recipient, _amount); | ||
} | ||
|
||
/// @notice Withdraw ERC20s from the Lockbox | ||
/// @param _amount Amount of xERC20s to use | ||
/// @param _recipient Recipient of the ERC20s | ||
function withdraw(uint256 _amount, address _recipient) internal { | ||
require(_amount > 0, "Zero amount"); | ||
IERC20 _xerc20 = IERC20(address(xerc20)); | ||
|
||
if (_xerc20.allowance(address(this), address(lockbox)) < _amount) { | ||
_xerc20.approve(address(lockbox), type(uint256).max); | ||
} | ||
lockbox.withdraw(_amount); | ||
|
||
// Transfer the ERC20s to the recipient | ||
SafeERC20.safeTransfer(erc20, _recipient, _amount); | ||
} | ||
|
||
/// @dev This function receives xERC20s from Connext and calls the Lockbox | ||
/// @param _amount The amount of funds that will be received. | ||
/// @param _asset The address of the asset that will be received. | ||
/// @param _transferId The id of the transfer. | ||
/// @param _callData The data that will be sent to the targets. | ||
function xReceive( | ||
bytes32 _transferId, | ||
uint256 _amount, | ||
address _asset, | ||
address _originSender, | ||
uint32 _origin, | ||
bytes memory _callData | ||
) external returns (bytes memory) { | ||
// Check for the right xerc20 | ||
require(_asset == address(xerc20), "Wrong asset received"); | ||
|
||
// Unpack the _callData to get the recipient's address | ||
address _recipient = abi.decode(_callData, (address)); | ||
|
||
withdraw(_amount, _recipient); | ||
} | ||
} |