WNativeRelayer

[
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint8",
        "name": "version",
        "type": "uint8"
      }
    ],
    "name": "Initialized",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "previousOwner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "OwnershipTransferred",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "caller",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "bool",
        "name": "isAllowed",
        "type": "bool"
      }
    ],
    "name": "SetCaller",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "address",
        "name": "newWNative",
        "type": "address"
      }
    ],
    "name": "SetWNative",
    "type": "event"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "_wnative",
        "type": "address"
      }
    ],
    "name": "initialize",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "renounceOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address[]",
        "name": "whitelistedCallers",
        "type": "address[]"
      },
      {
        "internalType": "bool",
        "name": "isOk",
        "type": "bool"
      }
    ],
    "name": "setCallerOk",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "transferOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "withdraw",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "stateMutability": "payable",
    "type": "receive"
  }
]

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";

import "../interfaces/IWETH.sol";
import "../libraries/RevertReasonParser.sol";

contract WNativeRelayer is OwnableUpgradeable, ReentrancyGuardUpgradeable {

  address private wnative;
  mapping(address => bool) private okCallers;

  event SetCaller(address indexed caller, bool isAllowed);
  event SetWNative(address newWNative);

  function initialize(address _wnative) public initializer {
    __Ownable_init();
    __ReentrancyGuard_init();
    wnative = _wnative;

    emit SetWNative(_wnative);
  }

  modifier onlyWhitelistCaller() {
    require(okCallers[msg.sender] == true, "WNativeRelayer::onlyWhitelistedCaller:: !okCaller");
    _;
  }

  function setCallerOk(address[] calldata whitelistedCallers, bool isOk) external onlyOwner {
    uint256 len = whitelistedCallers.length;
    for (uint256 idx = 0; idx < len; idx++) {

      okCallers[whitelistedCallers[idx]] = isOk;
      
      emit SetCaller(whitelistedCallers[idx], isOk);
    }
  }

  function withdraw(uint256 _amount) external onlyWhitelistCaller nonReentrant {
    IWETH(wnative).withdraw(_amount);
    (bool success, ) = msg.sender.call{ value: _amount }("");
    require(success, "WNativeRelayer::onlyWhitelistedCaller:: can't withdraw");
  }

  receive() external payable {}
}