Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

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

import '@openzeppelin/contracts/security/ReentrancyGuard.sol';

/**
 * @title EthereumFeeProxy
 * @notice This contract performs an Ethereum transfer with a Fee sent to a third address and stores a reference
 */
contract EthereumFeeProxy is ReentrancyGuard {
    // Event to declare a transfer with a reference
    event TransferWithReferenceAndFee(
        address to,
        uint256 amount,
        bytes indexed paymentReference,
        uint256 feeAmount,
        address feeAddress
    );

    // Fallback function returns funds to the sender
    receive() external payable {
        revert('not payable receive');
    }

    /**
     * @notice Performs an Ethereum transfer with a reference
     * @param _to Transfer recipient
     * @param _paymentReference Reference of the payment related
     * @param _feeAmount The amount of the payment fee (part of the msg.value)
     * @param _feeAddress The fee recipient
     */
    function transferWithReferenceAndFee(
        address payable _to,
        bytes calldata _paymentReference,
        uint256 _feeAmount,
        address payable _feeAddress
    ) external payable {
        transferExactEthWithReferenceAndFee(
            _to,
            msg.value - _feeAmount,
            _paymentReference,
            _feeAmount,
            _feeAddress
        );
    }

    /**
     * @notice Performs an Ethereum transfer with a reference with an exact amount of eth
     * @param _to Transfer recipient
     * @param _amount Amount to transfer
     * @param _paymentReference Reference of the payment related
     * @param _feeAmount The amount of the payment fee (part of the msg.value)
     * @param _feeAddress The fee recipient
     */
    function transferExactEthWithReferenceAndFee(
        address payable _to,
        uint256 _amount,
        bytes calldata _paymentReference,
        uint256 _feeAmount,
        address payable _feeAddress
    ) public payable nonReentrant {
        (bool sendSuccess, ) = _to.call{value: _amount}('');
        require(sendSuccess, 'Could not pay the recipient');

        _feeAddress.transfer(_feeAmount);

        // transfer the remaining ethers to the sender
        (bool sendBackSuccess, ) = payable(msg.sender).call{
            value: msg.value - _amount - _feeAmount
        }('');
        require(sendBackSuccess, 'Could not send remaining funds to the payer');

        emit TransferWithReferenceAndFee(_to, _amount, _paymentReference, _feeAmount, _feeAddress);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

{
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"bytes","name":"paymentReference","type":"bytes"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"},{"indexed":false,"internalType":"address","name":"feeAddress","type":"address"}],"name":"TransferWithReferenceAndFee","type":"event"},{"inputs":[{"internalType":"address payable","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_paymentReference","type":"bytes"},{"internalType":"uint256","name":"_feeAmount","type":"uint256"},{"internalType":"address payable","name":"_feeAddress","type":"address"}],"name":"transferExactEthWithReferenceAndFee","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_to","type":"address"},{"internalType":"bytes","name":"_paymentReference","type":"bytes"},{"internalType":"uint256","name":"_feeAmount","type":"uint256"},{"internalType":"address payable","name":"_feeAddress","type":"address"}],"name":"transferWithReferenceAndFee","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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