编译器
0.6.12+commit.27d51765
文件 1 的 37：Address.sol
pragma solidity >=0.6.2 <0.8.0;
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly { size := extcodesize(account) }
return size > 0;
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 37：AddressAliasHelper.sol
pragma solidity ^0.6.11;
library AddressAliasHelper {
uint160 constant offset = uint160(0x1111000000000000000000000000000000001111);
function applyL1ToL2Alias(address l1Address) internal pure returns (address l2Address) {
l2Address = address(uint160(l1Address) + offset);
}
function undoL1ToL2Alias(address l2Address) internal pure returns (address l1Address) {
l1Address = address(uint160(l2Address) - offset);
}
}
文件 3 的 37：ArbSys.sol
pragma solidity >=0.4.21 <0.7.0;
interface ArbSys {
function arbOSVersion() external pure returns (uint);
function arbChainID() external view returns(uint);
function arbBlockNumber() external view returns (uint);
function withdrawEth(address destination) external payable returns(uint);
function sendTxToL1(address destination, bytes calldata calldataForL1) external payable returns(uint);
function getTransactionCount(address account) external view returns(uint256);
function getStorageAt(address account, uint256 index) external view returns (uint256);
function isTopLevelCall() external view returns (bool);
function wasMyCallersAddressAliased() external view returns (bool);
function myCallersAddressWithoutAliasing() external view returns (address);
function mapL1SenderContractAddressToL2Alias(address sender, address dest) external pure returns(address);
function getStorageGasAvailable() external returns(uint);
event L2ToL1Transaction(address caller, address indexed destination, uint indexed uniqueId,
uint indexed batchNumber, uint indexInBatch,
uint arbBlockNum, uint ethBlockNum, uint timestamp,
uint callvalue, bytes data);
}
文件 4 的 37：BytesLib.sol
pragma solidity ^0.6.11;
library BytesLib {
function toAddress(bytes memory _bytes, uint256 _start) internal pure returns (address) {
require(_bytes.length >= (_start + 20), "Read out of bounds");
address tempAddress;
assembly {
tempAddress := div(mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000)
}
return tempAddress;
}
function toUint8(bytes memory _bytes, uint256 _start) internal pure returns (uint8) {
require(_bytes.length >= (_start + 1), "Read out of bounds");
uint8 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x1), _start))
}
return tempUint;
}
function toUint(bytes memory _bytes, uint256 _start) internal pure returns (uint256) {
require(_bytes.length >= (_start + 32), "Read out of bounds");
uint256 tempUint;
assembly {
tempUint := mload(add(add(_bytes, 0x20), _start))
}
return tempUint;
}
function toBytes32(bytes memory _bytes, uint256 _start) internal pure returns (bytes32) {
require(_bytes.length >= (_start + 32), "Read out of bounds");
bytes32 tempBytes32;
assembly {
tempBytes32 := mload(add(add(_bytes, 0x20), _start))
}
return tempBytes32;
}
}
文件 5 的 37：Context.sol
pragma solidity >=0.6.0 <0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
文件 6 的 37：Create2.sol
pragma solidity >=0.6.0 <0.8.0;
library Create2 {
function deploy(uint256 amount, bytes32 salt, bytes memory bytecode) internal returns (address) {
address addr;
require(address(this).balance >= amount, "Create2: insufficient balance");
require(bytecode.length != 0, "Create2: bytecode length is zero");
assembly {
addr := create2(amount, add(bytecode, 0x20), mload(bytecode), salt)
}
require(addr != address(0), "Create2: Failed on deploy");
return addr;
}
function computeAddress(bytes32 salt, bytes32 bytecodeHash) internal view returns (address) {
return computeAddress(salt, bytecodeHash, address(this));
}
function computeAddress(bytes32 salt, bytes32 bytecodeHash, address deployer) internal pure returns (address) {
bytes32 _data = keccak256(
abi.encodePacked(bytes1(0xff), deployer, salt, bytecodeHash)
);
return address(uint160(uint256(_data)));
}
}
文件 7 的 37：ERC20.sol
pragma solidity >=0.6.0 <0.8.0;
import "./Context.sol";
import "./IERC20.sol";
import "./SafeMath.sol";
contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
constructor (string memory name_, string memory symbol_) public {
_name = name_;
_symbol = symbol_;
_decimals = 18;
}
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 _decimals;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _setupDecimals(uint8 decimals_) internal virtual {
_decimals = decimals_;
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
文件 8 的 37：GatewayMessageHandler.sol
pragma solidity ^0.6.11;
library GatewayMessageHandler {
function encodeToL2GatewayMsg(bytes memory gatewayData, bytes memory callHookData)
internal
pure
returns (bytes memory res)
{
res = abi.encode(gatewayData, callHookData);
}
function parseFromL1GatewayMsg(bytes calldata _data)
internal
pure
returns (bytes memory gatewayData, bytes memory callHookData)
{
(gatewayData, callHookData) = abi.decode(_data, (bytes, bytes));
}
function encodeFromL2GatewayMsg(uint256 exitNum, bytes memory callHookData)
internal
pure
returns (bytes memory res)
{
res = abi.encode(exitNum, callHookData);
}
function parseToL1GatewayMsg(bytes calldata _data)
internal
pure
returns (uint256 exitNum, bytes memory callHookData)
{
(exitNum, callHookData) = abi.decode(_data, (uint256, bytes));
}
function encodeFromRouterToGateway(address _from, bytes calldata _data)
internal
pure
returns (bytes memory res)
{
return abi.encode(_from, _data);
}
function parseFromRouterToGateway(bytes calldata _data)
internal
pure
returns (address, bytes memory res)
{
return abi.decode(_data, (address, bytes));
}
}
文件 9 的 37：GatewayRouter.sol
pragma solidity ^0.6.11;
import "./ProxyUtil.sol";
import "./Address.sol";
import "./TokenGateway.sol";
import "./GatewayMessageHandler.sol";
abstract contract GatewayRouter is TokenGateway {
using Address for address;
address internal constant ZERO_ADDR = address(0);
address internal constant DISABLED = address(1);
mapping(address => address) public l1TokenToGateway;
address public defaultGateway;
event TransferRouted(
address indexed token,
address indexed _userFrom,
address indexed _userTo,
address gateway
);
event GatewaySet(address indexed l1Token, address indexed gateway);
event DefaultGatewayUpdated(address newDefaultGateway);
function postUpgradeInit() external {
address proxyAdmin = ProxyUtil.getProxyAdmin();
require(msg.sender == proxyAdmin, "NOT_FROM_ADMIN");
}
function _initialize(
address _counterpartGateway,
address _router,
address _defaultGateway
) internal {
require(_router == address(0), "BAD_ROUTER");
TokenGateway._initialize(_counterpartGateway, _router);
defaultGateway = _defaultGateway;
}
function finalizeInboundTransfer(
address,
address,
address,
uint256,
bytes calldata
) external payable virtual override {
revert("ONLY_OUTBOUND_ROUTER");
}
function outboundTransfer(
address _token,
address _to,
uint256 _amount,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes calldata _data
) public payable virtual override returns (bytes memory) {
address gateway = getGateway(_token);
bytes memory gatewayData = GatewayMessageHandler.encodeFromRouterToGateway(
msg.sender,
_data
);
emit TransferRouted(_token, msg.sender, _to, gateway);
return
ITokenGateway(gateway).outboundTransfer{ value: msg.value }(
_token,
_to,
_amount,
_maxGas,
_gasPriceBid,
gatewayData
);
}
function getOutboundCalldata(
address _token,
address _from,
address _to,
uint256 _amount,
bytes memory _data
) public view virtual override returns (bytes memory) {
address gateway = getGateway(_token);
return TokenGateway(gateway).getOutboundCalldata(_token, _from, _to, _amount, _data);
}
function getGateway(address _token) public view virtual returns (address gateway) {
gateway = l1TokenToGateway[_token];
if (gateway == ZERO_ADDR) {
gateway = defaultGateway;
}
if (gateway == DISABLED || !gateway.isContract()) {
return ZERO_ADDR;
}
return gateway;
}
function calculateL2TokenAddress(address l1ERC20)
public
view
virtual
override
returns (address)
{
address gateway = getGateway(l1ERC20);
if (gateway == ZERO_ADDR) {
return ZERO_ADDR;
}
return TokenGateway(gateway).calculateL2TokenAddress(l1ERC20);
}
}
文件 10 的 37：IArbToken.sol
pragma solidity ^0.6.11;
interface IArbToken {
function bridgeMint(address account, uint256 amount) external;
function bridgeBurn(address account, uint256 amount) external;
function l1Address() external view returns (address);
}
文件 11 的 37：IBridge.sol
pragma solidity ^0.6.11;
interface IBridge {
event MessageDelivered(
uint256 indexed messageIndex,
bytes32 indexed beforeInboxAcc,
address inbox,
uint8 kind,
address sender,
bytes32 messageDataHash
);
event BridgeCallTriggered(
address indexed outbox,
address indexed destAddr,
uint256 amount,
bytes data
);
event InboxToggle(address indexed inbox, bool enabled);
event OutboxToggle(address indexed outbox, bool enabled);
function deliverMessageToInbox(
uint8 kind,
address sender,
bytes32 messageDataHash
) external payable returns (uint256);
function executeCall(
address destAddr,
uint256 amount,
bytes calldata data
) external returns (bool success, bytes memory returnData);
function setInbox(address inbox, bool enabled) external;
function setOutbox(address inbox, bool enabled) external;
function activeOutbox() external view returns (address);
function allowedInboxes(address inbox) external view returns (bool);
function allowedOutboxes(address outbox) external view returns (bool);
function inboxAccs(uint256 index) external view returns (bytes32);
function messageCount() external view returns (uint256);
}
文件 12 的 37：ICustomGateway.sol
pragma solidity ^0.6.11;
interface ICustomGateway {
function l1ToL2Token(address _l1Token) external view returns (address _l2Token);
event TokenSet(address indexed l1Address, address indexed l2Address);
}
文件 13 的 37：ICustomToken.sol
pragma solidity ^0.6.11;
interface ArbitrumEnabledToken {
function isArbitrumEnabled() external view returns (uint8);
}
interface ICustomToken is ArbitrumEnabledToken {
function registerTokenOnL2(
address l2CustomTokenAddress,
uint256 maxSubmissionCostForCustomBridge,
uint256 maxSubmissionCostForRouter,
uint256 maxGas,
uint256 gasPriceBid,
uint256 valueForGateway,
uint256 valueForRouter,
address creditBackAddress
) external payable;
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
function balanceOf(address account) external view returns (uint256);
}
文件 14 的 37：IERC20.sol
pragma solidity >=0.6.0 <0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
文件 15 的 37：IERC20Upgradeable.sol
pragma solidity ^0.6.12;
interface IERC20Upgradeable {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
文件 16 的 37：IInbox.sol
pragma solidity ^0.6.11;
import "./IBridge.sol";
import "./IMessageProvider.sol";
interface IInbox is IMessageProvider {
function sendL2Message(bytes calldata messageData) external returns (uint256);
function sendUnsignedTransaction(
uint256 maxGas,
uint256 gasPriceBid,
uint256 nonce,
address destAddr,
uint256 amount,
bytes calldata data
) external returns (uint256);
function sendContractTransaction(
uint256 maxGas,
uint256 gasPriceBid,
address destAddr,
uint256 amount,
bytes calldata data
) external returns (uint256);
function sendL1FundedUnsignedTransaction(
uint256 maxGas,
uint256 gasPriceBid,
uint256 nonce,
address destAddr,
bytes calldata data
) external payable returns (uint256);
function sendL1FundedContractTransaction(
uint256 maxGas,
uint256 gasPriceBid,
address destAddr,
bytes calldata data
) external payable returns (uint256);
function createRetryableTicket(
address destAddr,
uint256 arbTxCallValue,
uint256 maxSubmissionCost,
address submissionRefundAddress,
address valueRefundAddress,
uint256 maxGas,
uint256 gasPriceBid,
bytes calldata data
) external payable returns (uint256);
function depositEth(uint256 maxSubmissionCost) external payable returns (uint256);
function bridge() external view returns (IBridge);
function pauseCreateRetryables() external;
function unpauseCreateRetryables() external;
function startRewriteAddress() external;
function stopRewriteAddress() external;
}
文件 17 的 37：IMessageProvider.sol
pragma solidity ^0.6.11;
interface IMessageProvider {
event InboxMessageDelivered(uint256 indexed messageNum, bytes data);
event InboxMessageDeliveredFromOrigin(uint256 indexed messageNum);
}
文件 18 的 37：IOutbox.sol
pragma solidity ^0.6.11;
interface IOutbox {
event OutboxEntryCreated(
uint256 indexed batchNum,
uint256 outboxEntryIndex,
bytes32 outputRoot,
uint256 numInBatch
);
event OutBoxTransactionExecuted(
address indexed destAddr,
address indexed l2Sender,
uint256 indexed outboxEntryIndex,
uint256 transactionIndex
);
function l2ToL1Sender() external view returns (address);
function l2ToL1Block() external view returns (uint256);
function l2ToL1EthBlock() external view returns (uint256);
function l2ToL1Timestamp() external view returns (uint256);
function l2ToL1BatchNum() external view returns (uint256);
function l2ToL1OutputId() external view returns (bytes32);
function processOutgoingMessages(bytes calldata sendsData, uint256[] calldata sendLengths)
external;
function outboxEntryExists(uint256 batchNum) external view returns (bool);
}
文件 19 的 37：ISperaxToken.sol
pragma solidity >=0.5.0;
interface ISperaxToken {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function burnFrom(address account, uint256 amount) external;
function mintForUSDs(address account, uint256 amount) external;
}
文件 20 的 37：ITokenGateway.sol
pragma solidity ^0.6.11;
interface ITokenGateway {
function outboundTransfer(
address _token,
address _to,
uint256 _amount,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes calldata _data
) external payable returns (bytes memory);
function finalizeInboundTransfer(
address _token,
address _from,
address _to,
uint256 _amount,
bytes calldata _data
) external payable;
function calculateL2TokenAddress(address l1ERC20) external view returns (address);
}
文件 21 的 37：ITransferAndCall.sol
pragma solidity ^0.6.12;
import "./IERC20Upgradeable.sol";
interface ITransferAndCall is IERC20Upgradeable {
function transferAndCall(
address to,
uint256 value,
bytes memory data
) external returns (bool success);
event Transfer(address indexed from, address indexed to, uint256 value, bytes data);
}
interface ITransferAndCallReceiver {
function onTokenTransfer(
address _sender,
uint256 _value,
bytes memory _data
) external;
}
文件 22 的 37：L1ArbitrumExtendedGateway.sol
pragma solidity ^0.6.11;
import "./ITransferAndCall.sol";
import "./L1ArbitrumGateway.sol";
interface ITradeableExitReceiver {
function onExitTransfer(
address sender,
uint256 exitNum,
bytes calldata data
) external returns (bool);
}
abstract contract L1ArbitrumExtendedGateway is L1ArbitrumGateway {
struct ExitData {
bool isExit;
address _newTo;
bytes _newData;
}
mapping(bytes32 => ExitData) public redirectedExits;
function _initialize(
address _l2Counterpart,
address _router,
address _inbox
) internal virtual override {
L1ArbitrumGateway._initialize(_l2Counterpart, _router, _inbox);
}
event WithdrawRedirected(
address indexed from,
address indexed to,
uint256 indexed exitNum,
bytes newData,
bytes data,
bool madeExternalCall
);
function transferExitAndCall(
uint256 _exitNum,
address _initialDestination,
address _newDestination,
bytes calldata _newData,
bytes calldata _data
) external {
(address expectedSender, ) = getExternalCall(_exitNum, _initialDestination, "");
require(msg.sender == expectedSender, "NOT_EXPECTED_SENDER");
require(_newData.length == 0, "NO_DATA_ALLOWED");
setRedirectedExit(_exitNum, _initialDestination, _newDestination, _newData);
if (_data.length > 0) {
require(_newDestination.isContract(), "TO_NOT_CONTRACT");
bool success = ITradeableExitReceiver(_newDestination).onExitTransfer(
expectedSender,
_exitNum,
_data
);
require(success, "TRANSFER_HOOK_FAIL");
}
emit WithdrawRedirected(
expectedSender,
_newDestination,
_exitNum,
_newData,
_data,
_data.length > 0
);
}
function getExternalCall(
uint256 _exitNum,
address _initialDestination,
bytes memory _initialData
) public view virtual override returns (address target, bytes memory data) {
bytes32 withdrawData = encodeWithdrawal(_exitNum, _initialDestination);
ExitData storage exit = redirectedExits[withdrawData];
if (exit.isExit) {
return (exit._newTo, exit._newData);
} else {
return (_initialDestination, _initialData);
}
}
function setRedirectedExit(
uint256 _exitNum,
address _initialDestination,
address _newDestination,
bytes memory _newData
) internal {
bytes32 withdrawData = encodeWithdrawal(_exitNum, _initialDestination);
redirectedExits[withdrawData] = ExitData(true, _newDestination, _newData);
}
function encodeWithdrawal(uint256 _exitNum, address _initialDestination)
public
pure
returns (bytes32)
{
return keccak256(abi.encode(_exitNum, _initialDestination));
}
}
文件 23 的 37：L1ArbitrumGateway.sol
pragma solidity ^0.6.11;
import "./ERC20.sol";
import "./SafeERC20.sol";
import "./Create2.sol";
import "./Address.sol";
import "./SafeMath.sol";
import "./IInbox.sol";
import "./ProxyUtil.sol";
import "./L1ArbitrumMessenger.sol";
import "./GatewayMessageHandler.sol";
import "./TokenGateway.sol";
import "./ITransferAndCall.sol";
abstract contract L1ArbitrumGateway is L1ArbitrumMessenger, TokenGateway {
using SafeERC20 for IERC20;
using Address for address;
address public inbox;
event DepositInitiated(
address l1Token,
address indexed _from,
address indexed _to,
uint256 indexed _sequenceNumber,
uint256 _amount
);
event WithdrawalFinalized(
address l1Token,
address indexed _from,
address indexed _to,
uint256 indexed _exitNum,
uint256 _amount
);
modifier onlyCounterpartGateway() override {
address _inbox = inbox;
address bridge = address(super.getBridge(_inbox));
require(msg.sender == bridge, "NOT_FROM_BRIDGE");
address l2ToL1Sender = super.getL2ToL1Sender(_inbox);
require(l2ToL1Sender == counterpartGateway, "ONLY_COUNTERPART_GATEWAY");
_;
}
function postUpgradeInit() external {
address proxyAdmin = ProxyUtil.getProxyAdmin();
require(msg.sender == proxyAdmin, "NOT_FROM_ADMIN");
}
function _initialize(
address _l2Counterpart,
address _router,
address _inbox
) internal virtual {
TokenGateway._initialize(_l2Counterpart, _router);
require(_router != address(0), "BAD_ROUTER");
require(_inbox != address(0), "BAD_INBOX");
inbox = _inbox;
}
function finalizeInboundTransfer(
address _token,
address _from,
address _to,
uint256 _amount,
bytes calldata _data
) external payable override onlyCounterpartGateway {
(uint256 exitNum, bytes memory callHookData) = GatewayMessageHandler.parseToL1GatewayMsg(
_data
);
if (callHookData.length != 0) {
callHookData = bytes("");
}
(_to, ) = getExternalCall(exitNum, _to, callHookData);
inboundEscrowTransfer(_token, _to, _amount);
emit WithdrawalFinalized(_token, _from, _to, exitNum, _amount);
}
function getExternalCall(
uint256,
address _initialDestination,
bytes memory _initialData
) public view virtual returns (address target, bytes memory data) {
target = _initialDestination;
data = _initialData;
}
function inboundEscrowTransfer(
address _l1Token,
address _dest,
uint256 _amount
) internal virtual {
IERC20(_l1Token).safeTransfer(_dest, _amount);
}
function createOutboundTx(
address _from,
uint256,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost,
bytes memory _outboundCalldata
) internal virtual returns (uint256) {
return
sendTxToL2(
inbox,
counterpartGateway,
_from,
msg.value,
0,
L2GasParams({
_maxSubmissionCost: _maxSubmissionCost,
_maxGas: _maxGas,
_gasPriceBid: _gasPriceBid
}),
_outboundCalldata
);
}
function outboundTransfer(
address _l1Token,
address _to,
uint256 _amount,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes calldata _data
) public payable virtual override returns (bytes memory res) {
require(isRouter(msg.sender), "NOT_FROM_ROUTER");
address _from;
uint256 seqNum;
bytes memory extraData;
{
uint256 _maxSubmissionCost;
if (super.isRouter(msg.sender)) {
(_from, extraData) = GatewayMessageHandler.parseFromRouterToGateway(_data);
} else {
_from = msg.sender;
extraData = _data;
}
(_maxSubmissionCost, extraData) = abi.decode(extraData, (uint256, bytes));
require(extraData.length == 0, "EXTRA_DATA_DISABLED");
require(_l1Token.isContract(), "L1_NOT_CONTRACT");
address l2Token = calculateL2TokenAddress(_l1Token);
require(l2Token != address(0), "NO_L2_TOKEN_SET");
_amount = outboundEscrowTransfer(_l1Token, _from, _amount);
res = getOutboundCalldata(_l1Token, _from, _to, _amount, extraData);
seqNum = createOutboundTx(
_from,
_amount,
_maxGas,
_gasPriceBid,
_maxSubmissionCost,
res
);
}
emit DepositInitiated(_l1Token, _from, _to, seqNum, _amount);
return abi.encode(seqNum);
}
function outboundEscrowTransfer(
address _l1Token,
address _from,
uint256 _amount
) internal virtual returns (uint256 amountReceived) {
uint256 prevBalance = IERC20(_l1Token).balanceOf(address(this));
IERC20(_l1Token).safeTransferFrom(_from, address(this), _amount);
uint256 postBalance = IERC20(_l1Token).balanceOf(address(this));
return SafeMath.sub(postBalance, prevBalance);
}
function getOutboundCalldata(
address _l1Token,
address _from,
address _to,
uint256 _amount,
bytes memory _data
) public view virtual override returns (bytes memory outboundCalldata) {
bytes memory emptyBytes = "";
outboundCalldata = abi.encodeWithSelector(
TokenGateway.finalizeInboundTransfer.selector,
_l1Token,
_from,
_to,
_amount,
GatewayMessageHandler.encodeToL2GatewayMsg(emptyBytes, _data)
);
return outboundCalldata;
}
}
文件 24 的 37：L1ArbitrumMessenger.sol
pragma solidity ^0.6.11;
import "./IInbox.sol";
import "./IOutbox.sol";
abstract contract L1ArbitrumMessenger {
event TxToL2(address indexed _from, address indexed _to, uint256 indexed _seqNum, bytes _data);
struct L2GasParams {
uint256 _maxSubmissionCost;
uint256 _maxGas;
uint256 _gasPriceBid;
}
function sendTxToL2(
address _inbox,
address _to,
address _user,
uint256 _l1CallValue,
uint256 _l2CallValue,
L2GasParams memory _l2GasParams,
bytes memory _data
) internal virtual returns (uint256) {
return
sendTxToL2(
_inbox,
_to,
_user,
_l1CallValue,
_l2CallValue,
_l2GasParams._maxSubmissionCost,
_l2GasParams._maxGas,
_l2GasParams._gasPriceBid,
_data
);
}
function sendTxToL2(
address _inbox,
address _to,
address _user,
uint256 _l1CallValue,
uint256 _l2CallValue,
uint256 _maxSubmissionCost,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes memory _data
) internal virtual returns (uint256) {
uint256 seqNum = IInbox(_inbox).createRetryableTicket{ value: _l1CallValue }(
_to,
_l2CallValue,
_maxSubmissionCost,
_user,
_user,
_maxGas,
_gasPriceBid,
_data
);
emit TxToL2(_user, _to, seqNum, _data);
return seqNum;
}
function getBridge(address _inbox) internal view virtual returns (IBridge) {
return IInbox(_inbox).bridge();
}
function getL2ToL1Sender(address _inbox) internal view virtual returns (address) {
IOutbox outbox = IOutbox(getBridge(_inbox).activeOutbox());
address l2ToL1Sender = outbox.l2ToL1Sender();
require(l2ToL1Sender != address(0), "NO_SENDER");
return l2ToL1Sender;
}
}
文件 25 的 37：L1CustomGateway.sol
pragma solidity ^0.6.11;
import { ArbitrumEnabledToken } from "./ICustomToken.sol";
import "./L1ArbitrumExtendedGateway.sol";
import "./L2CustomGateway.sol";
import "./ICustomGateway.sol";
import "./Address.sol";
import "./Whitelist.sol";
contract L1CustomGateway is L1ArbitrumExtendedGateway, ICustomGateway {
using Address for address;
mapping(address => address) public override l1ToL2Token;
address public owner;
address public whitelist;
function initialize(
address _l1Counterpart,
address _l1Router,
address _inbox,
address _owner
) public {
L1ArbitrumExtendedGateway._initialize(_l1Counterpart, _l1Router, _inbox);
owner = _owner;
whitelist = address(0);
}
function calculateL2TokenAddress(address l1ERC20) public view override returns (address) {
return l1ToL2Token[l1ERC20];
}
function registerTokenToL2(
address _l2Address,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost
) external payable returns (uint256) {
return registerTokenToL2(_l2Address, _maxGas, _gasPriceBid, _maxSubmissionCost, msg.sender);
}
function registerTokenToL2(
address _l2Address,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost,
address _creditBackAddress
) public payable returns (uint256) {
require(
ArbitrumEnabledToken(msg.sender).isArbitrumEnabled() == uint8(0xa4b1),
"NOT_ARB_ENABLED"
);
address currL2Addr = l1ToL2Token[msg.sender];
if (currL2Addr != address(0)) {
require(currL2Addr == _l2Address, "NO_UPDATE_TO_DIFFERENT_ADDR");
}
l1ToL2Token[msg.sender] = _l2Address;
address[] memory l1Addresses = new address[](1);
address[] memory l2Addresses = new address[](1);
l1Addresses[0] = msg.sender;
l2Addresses[0] = _l2Address;
emit TokenSet(l1Addresses[0], l2Addresses[0]);
bytes memory _data = abi.encodeWithSelector(
L2CustomGateway.registerTokenFromL1.selector,
l1Addresses,
l2Addresses
);
return
sendTxToL2(
inbox,
counterpartGateway,
_creditBackAddress,
msg.value,
0,
_maxSubmissionCost,
_maxGas,
_gasPriceBid,
_data
);
}
function forceRegisterTokenToL2(
address[] calldata _l1Addresses,
address[] calldata _l2Addresses,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost
) external payable returns (uint256) {
require(msg.sender == owner, "ONLY_OWNER");
require(_l1Addresses.length == _l2Addresses.length, "INVALID_LENGTHS");
for (uint256 i = 0; i < _l1Addresses.length; i++) {
l1ToL2Token[_l1Addresses[i]] = _l2Addresses[i];
emit TokenSet(_l1Addresses[i], _l2Addresses[i]);
}
bytes memory _data = abi.encodeWithSelector(
L2CustomGateway.registerTokenFromL1.selector,
_l1Addresses,
_l2Addresses
);
return
sendTxToL2(
inbox,
counterpartGateway,
msg.sender,
msg.value,
0,
_maxSubmissionCost,
_maxGas,
_gasPriceBid,
_data
);
}
}
文件 26 的 37：L1GatewayRouter.sol
pragma solidity ^0.6.11;
import "./Whitelist.sol";
import { ArbitrumEnabledToken } from "../ICustomToken.sol";
import "./L1ArbitrumMessenger.sol";
import "./GatewayRouter.sol";
import "./L2GatewayRouter.sol";
contract L1GatewayRouter is WhitelistConsumer, L1ArbitrumMessenger, GatewayRouter {
address public owner;
address public inbox;
modifier onlyOwner() {
require(msg.sender == owner, "ONLY_OWNER");
_;
}
function initialize(
address _owner,
address _defaultGateway,
address _whitelist,
address _counterpartGateway,
address _inbox
) public {
GatewayRouter._initialize(_counterpartGateway, address(0), _defaultGateway);
owner = _owner;
WhitelistConsumer.whitelist = _whitelist;
inbox = _inbox;
}
function setDefaultGateway(
address newL1DefaultGateway,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost
) external payable onlyOwner returns (uint256) {
defaultGateway = newL1DefaultGateway;
emit DefaultGatewayUpdated(newL1DefaultGateway);
address l2NewDefaultGateway;
if (newL1DefaultGateway != address(0)) {
l2NewDefaultGateway = TokenGateway(newL1DefaultGateway).counterpartGateway();
}
bytes memory data = abi.encodeWithSelector(
L2GatewayRouter.setDefaultGateway.selector,
l2NewDefaultGateway
);
return
sendTxToL2(
inbox,
counterpartGateway,
msg.sender,
msg.value,
0,
L2GasParams({
_maxSubmissionCost: _maxSubmissionCost,
_maxGas: _maxGas,
_gasPriceBid: _gasPriceBid
}),
data
);
}
function setOwner(address newOwner) external onlyOwner {
require(newOwner != address(0), "INVALID_OWNER");
owner = newOwner;
}
function _setGateways(
address[] memory _token,
address[] memory _gateway,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost,
address _creditBackAddress
) internal returns (uint256) {
require(_token.length == _gateway.length, "WRONG_LENGTH");
for (uint256 i = 0; i < _token.length; i++) {
l1TokenToGateway[_token[i]] = _gateway[i];
emit GatewaySet(_token[i], _gateway[i]);
if (_gateway[i] != address(0)) {
require(
TokenGateway(_gateway[i]).calculateL2TokenAddress(_token[i]) != address(0),
"TOKEN_NOT_HANDLED_BY_GATEWAY"
);
_gateway[i] = TokenGateway(_gateway[i]).counterpartGateway();
}
}
bytes memory data = abi.encodeWithSelector(
L2GatewayRouter.setGateway.selector,
_token,
_gateway
);
return
sendTxToL2(
inbox,
counterpartGateway,
_creditBackAddress,
msg.value,
0,
L2GasParams({
_maxSubmissionCost: _maxSubmissionCost,
_maxGas: _maxGas,
_gasPriceBid: _gasPriceBid
}),
data
);
}
function setGateway(
address _gateway,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost
) external payable returns (uint256) {
return setGateway(_gateway, _maxGas, _gasPriceBid, _maxSubmissionCost, msg.sender);
}
function setGateway(
address _gateway,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost,
address _creditBackAddress
) public payable returns (uint256) {
require(
ArbitrumEnabledToken(msg.sender).isArbitrumEnabled() == uint8(0xa4b1),
"NOT_ARB_ENABLED"
);
require(_gateway.isContract(), "NOT_TO_CONTRACT");
address currGateway = l1TokenToGateway[msg.sender];
if (currGateway != address(0)) {
require(currGateway == _gateway, "NO_UPDATE_TO_DIFFERENT_ADDR");
}
address[] memory _tokenArr = new address[](1);
_tokenArr[0] = address(msg.sender);
address[] memory _gatewayArr = new address[](1);
_gatewayArr[0] = _gateway;
return
_setGateways(
_tokenArr,
_gatewayArr,
_maxGas,
_gasPriceBid,
_maxSubmissionCost,
_creditBackAddress
);
}
function setGateways(
address[] memory _token,
address[] memory _gateway,
uint256 _maxGas,
uint256 _gasPriceBid,
uint256 _maxSubmissionCost
) external payable onlyOwner returns (uint256) {
return
_setGateways(_token, _gateway, _maxGas, _gasPriceBid, _maxSubmissionCost, msg.sender);
}
function outboundTransfer(
address _token,
address _to,
uint256 _amount,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes calldata _data
) public payable override onlyWhitelisted returns (bytes memory) {
(uint256 _maxSubmissionCost, ) = abi.decode(_data, (uint256, bytes));
uint256 expectedEth = _maxSubmissionCost + (_maxGas * _gasPriceBid);
require(_maxSubmissionCost > 0, "NO_SUBMISSION_COST");
require(msg.value == expectedEth, "WRONG_ETH_VALUE");
return super.outboundTransfer(_token, _to, _amount, _maxGas, _gasPriceBid, _data);
}
modifier onlyCounterpartGateway() override {
revert("ONLY_COUNTERPART_GATEWAY");
_;
}
}
文件 27 的 37：L2ArbitrumGateway.sol
pragma solidity ^0.6.11;
import "./Address.sol";
import "./BytesLib.sol";
import "./ProxyUtil.sol";
import "./AddressAliasHelper.sol";
import "./IArbToken.sol";
import "./L2ArbitrumMessenger.sol";
import "./GatewayMessageHandler.sol";
import "./TokenGateway.sol";
abstract contract L2ArbitrumGateway is L2ArbitrumMessenger, TokenGateway {
using Address for address;
uint256 public exitNum;
event DepositFinalized(
address indexed l1Token,
address indexed _from,
address indexed _to,
uint256 _amount
);
event WithdrawalInitiated(
address l1Token,
address indexed _from,
address indexed _to,
uint256 indexed _l2ToL1Id,
uint256 _exitNum,
uint256 _amount
);
modifier onlyCounterpartGateway() override {
require(
msg.sender == counterpartGateway ||
AddressAliasHelper.undoL1ToL2Alias(msg.sender) == counterpartGateway,
"ONLY_COUNTERPART_GATEWAY"
);
_;
}
function postUpgradeInit() external {
address proxyAdmin = ProxyUtil.getProxyAdmin();
require(msg.sender == proxyAdmin, "NOT_FROM_ADMIN");
}
function _initialize(address _l1Counterpart, address _router) internal virtual override {
TokenGateway._initialize(_l1Counterpart, _router);
require(_router != address(0), "BAD_ROUTER");
}
function createOutboundTx(
address _from,
uint256,
bytes memory _outboundCalldata
) internal virtual returns (uint256) {
exitNum++;
return
sendTxToL1(
0,
_from,
counterpartGateway,
_outboundCalldata
);
}
function getOutboundCalldata(
address _token,
address _from,
address _to,
uint256 _amount,
bytes memory _data
) public view override returns (bytes memory outboundCalldata) {
outboundCalldata = abi.encodeWithSelector(
TokenGateway.finalizeInboundTransfer.selector,
_token,
_from,
_to,
_amount,
GatewayMessageHandler.encodeFromL2GatewayMsg(exitNum, _data)
);
return outboundCalldata;
}
function outboundTransfer(
address _l1Token,
address _to,
uint256 _amount,
bytes calldata _data
) public payable virtual returns (bytes memory) {
return outboundTransfer(_l1Token, _to, _amount, 0, 0, _data);
}
function outboundTransfer(
address _l1Token,
address _to,
uint256 _amount,
uint256,
uint256,
bytes calldata _data
) public payable virtual override returns (bytes memory res) {
require(msg.value == 0, "NO_VALUE");
address _from;
bytes memory _extraData;
{
if (isRouter(msg.sender)) {
(_from, _extraData) = GatewayMessageHandler.parseFromRouterToGateway(_data);
} else {
_from = msg.sender;
_extraData = _data;
}
}
require(_extraData.length == 0, "EXTRA_DATA_DISABLED");
uint256 id;
{
address l2Token = calculateL2TokenAddress(_l1Token);
require(l2Token.isContract(), "TOKEN_NOT_DEPLOYED");
require(IArbToken(l2Token).l1Address() == _l1Token, "NOT_EXPECTED_L1_TOKEN");
_amount = outboundEscrowTransfer(l2Token, _from, _amount);
id = triggerWithdrawal(_l1Token, _from, _to, _amount, _extraData);
}
return abi.encode(id);
}
function triggerWithdrawal(
address _l1Token,
address _from,
address _to,
uint256 _amount,
bytes memory _data
) internal returns (uint256) {
uint256 currExitNum = exitNum;
uint256 id = createOutboundTx(
_from,
_amount,
getOutboundCalldata(_l1Token, _from, _to, _amount, _data)
);
emit WithdrawalInitiated(_l1Token, _from, _to, id, currExitNum, _amount);
return id;
}
function outboundEscrowTransfer(
address _l2Token,
address _from,
uint256 _amount
) internal virtual returns (uint256 amountBurnt) {
IArbToken(_l2Token).bridgeBurn(_from, _amount);
return _amount;
}
function inboundEscrowTransfer(
address _l2Address,
address _dest,
uint256 _amount
) internal virtual {
IArbToken(_l2Address).bridgeMint(_dest, _amount);
}
function finalizeInboundTransfer(
address _token,
address _from,
address _to,
uint256 _amount,
bytes calldata _data
) external payable override onlyCounterpartGateway {
(bytes memory gatewayData, bytes memory callHookData) = GatewayMessageHandler
.parseFromL1GatewayMsg(_data);
if (callHookData.length != 0) {
callHookData = bytes("");
}
address expectedAddress = calculateL2TokenAddress(_token);
if (!expectedAddress.isContract()) {
bool shouldHalt = handleNoContract(
_token,
expectedAddress,
_from,
_to,
_amount,
gatewayData
);
if (shouldHalt) return;
}
{
(bool success, bytes memory _l1AddressData) = expectedAddress.staticcall(
abi.encodeWithSelector(IArbToken.l1Address.selector)
);
bool shouldWithdraw;
if (!success || _l1AddressData.length < 32) {
shouldWithdraw = true;
} else {
address expectedL1Address = BytesLib.toAddress(_l1AddressData, 12);
if (expectedL1Address != _token) {
shouldWithdraw = true;
}
}
if (shouldWithdraw) {
triggerWithdrawal(_token, address(this), _from, _amount, "");
return;
}
}
inboundEscrowTransfer(expectedAddress, _to, _amount);
emit DepositFinalized(_token, _from, _to, _amount);
return;
}
function handleNoContract(
address _l1Token,
address expectedL2Address,
address _from,
address _to,
uint256 _amount,
bytes memory gatewayData
) internal virtual returns (bool shouldHalt);
}
文件 28 的 37：L2ArbitrumMessenger.sol
pragma solidity ^0.6.11;
import "./ArbSys.sol";
abstract contract L2ArbitrumMessenger {
address internal constant ARB_SYS_ADDRESS = address(100);
event TxToL1(address indexed _from, address indexed _to, uint256 indexed _id, bytes _data);
function sendTxToL1(
uint256 _l1CallValue,
address _from,
address _to,
bytes memory _data
) internal virtual returns (uint256) {
uint256 _id = ArbSys(ARB_SYS_ADDRESS).sendTxToL1{ value: _l1CallValue }(_to, _data);
emit TxToL1(_from, _to, _id, _data);
return _id;
}
}
文件 29 的 37：L2CustomGateway.sol
pragma solidity ^0.6.11;
import "./L2ArbitrumGateway.sol";
import "./ICustomGateway.sol";
import "./SafeMath.sol";
import "./ERC20.sol";
contract L2CustomGateway is L2ArbitrumGateway, ICustomGateway {
mapping(address => address) public override l1ToL2Token;
function initialize(address _l1Counterpart, address _router) public {
L2ArbitrumGateway._initialize(_l1Counterpart, _router);
}
function handleNoContract(
address _l1Token,
address,
address _from,
address,
uint256 _amount,
bytes memory
) internal override returns (bool shouldHalt) {
triggerWithdrawal(_l1Token, address(this), _from, _amount, "");
return true;
}
function outboundEscrowTransfer(
address _l2Token,
address _from,
uint256 _amount
) internal override returns (uint256 amountBurnt) {
uint256 prevBalance = IERC20(_l2Token).balanceOf(_from);
super.outboundEscrowTransfer(_l2Token, _from, _amount);
uint256 postBalance = IERC20(_l2Token).balanceOf(_from);
return SafeMath.sub(prevBalance, postBalance);
}
function calculateL2TokenAddress(address l1ERC20) public view override returns (address) {
return l1ToL2Token[l1ERC20];
}
function registerTokenFromL1(address[] calldata l1Address, address[] calldata l2Address)
external
onlyCounterpartGateway
{
for (uint256 i = 0; i < l1Address.length; i++) {
l1ToL2Token[l1Address[i]] = l2Address[i];
emit TokenSet(l1Address[i], l2Address[i]);
}
}
}
文件 30 的 37：L2GatewayRouter.sol
pragma solidity ^0.6.11;
import "./GatewayRouter.sol";
import "./L1GatewayRouter.sol";
import "./L2ArbitrumMessenger.sol";
import "./AddressAliasHelper.sol";
contract L2GatewayRouter is GatewayRouter, L2ArbitrumMessenger {
modifier onlyCounterpartGateway() override {
require(
msg.sender == counterpartGateway ||
AddressAliasHelper.undoL1ToL2Alias(msg.sender) == counterpartGateway,
"ONLY_COUNTERPART_GATEWAY"
);
_;
}
function initialize(address _counterpartGateway, address _defaultGateway) public {
GatewayRouter._initialize(_counterpartGateway, address(0), _defaultGateway);
}
function setGateway(address[] memory _l1Token, address[] memory _gateway)
external
onlyCounterpartGateway
{
assert(_l1Token.length == _gateway.length);
for (uint256 i = 0; i < _l1Token.length; i++) {
l1TokenToGateway[_l1Token[i]] = _gateway[i];
emit GatewaySet(_l1Token[i], _gateway[i]);
}
}
function outboundTransfer(
address _l1Token,
address _to,
uint256 _amount,
bytes calldata _data
) public payable returns (bytes memory) {
return outboundTransfer(_l1Token, _to, _amount, 0, 0, _data);
}
function setDefaultGateway(address newL2DefaultGateway) external onlyCounterpartGateway {
defaultGateway = newL2DefaultGateway;
emit DefaultGatewayUpdated(newL2DefaultGateway);
}
}
文件 31 的 37：Ownable.sol
pragma solidity >=0.6.0 <0.8.0;
import "./Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
文件 32 的 37：ProxyUtil.sol
pragma solidity ^0.6.11;
library ProxyUtil {
function getProxyAdmin() internal view returns (address admin) {
bytes32 slot = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
assembly {
admin := sload(slot)
}
}
}
文件 33 的 37：SafeERC20.sol
pragma solidity >=0.6.0 <0.8.0;
import "./IERC20.sol";
import "./SafeMath.sol";
import "./Address.sol";
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(IERC20 token, address spender, uint256 value) internal {
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function _callOptionalReturn(IERC20 token, bytes memory data) private {
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
文件 34 的 37：SafeMath.sol
pragma solidity >=0.6.0 <0.8.0;
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
文件 35 的 37：SperaxTokenL1.sol
pragma solidity 0.6.12;
import "./ERC20.sol";
import "./SafeERC20.sol";
import "./Ownable.sol";
import "./L1CustomGateway.sol";
import "./L1GatewayRouter.sol";
import "./ICustomToken.sol";
import "./ISperaxToken.sol";
contract SperaxTokenL1 is ERC20, Ownable, ICustomToken {
using SafeERC20 for IERC20;
address public spaAddress;
address public bridge;
address public router;
bool private shouldRegisterGateway;
event ArbitrumGatewayRouterChanged(address newBridge, address newRouter);
event SPAaddressUpdated(address oldSPA, address newSPA);
modifier onlyGateway() {
require(_msgSender() == bridge, "ONLY_GATEWAY");
_;
}
constructor(string memory name_, string memory symbol_, address _spaAddress, address _bridge, address _router) ERC20(name_, symbol_) public {
spaAddress = _spaAddress;
bridge = _bridge;
router = _router;
}
function transferFrom(address sender, address recipient, uint256 amount) public override(ERC20, ICustomToken) returns (bool) {
return ERC20.transferFrom(sender, recipient, amount);
}
function balanceOf(address account) public view override(ERC20, ICustomToken) returns (uint256) {
return ERC20.balanceOf(account);
}
function mint(uint256 amount) external {
ISperaxToken(spaAddress).burnFrom(_msgSender(), amount);
_mint(_msgSender(), amount);
}
function burn(uint256 amount) external {
ISperaxToken(spaAddress).mintForUSDs(_msgSender(), amount);
_burn(_msgSender(), amount);
}
function bridgeMint(address account, uint256 amount) onlyGateway external {
ISperaxToken(spaAddress).mintForUSDs(account, amount);
}
function isArbitrumEnabled() external view override returns (uint8) {
require(shouldRegisterGateway, "NOT_EXPECTED_CALL");
return uint8(0xa4b1);
}
function changeArbToken(address newBridge, address newRouter) external onlyOwner {
bridge = newBridge;
router = newRouter;
emit ArbitrumGatewayRouterChanged(bridge, router);
}
function changeSpaAddress(address newSPA) external onlyOwner {
emit SPAaddressUpdated(spaAddress, newSPA);
spaAddress = newSPA;
}
function registerTokenOnL2(
address l2CustomTokenAddress,
uint256 maxSubmissionCostForCustomBridge,
uint256 maxSubmissionCostForRouter,
uint256 maxGas,
uint256 gasPriceBid,
uint256 valueForGateway,
uint256 valueForRouter,
address creditBackAddress
) external payable onlyOwner override {
bool prev = shouldRegisterGateway;
shouldRegisterGateway = true;
L1CustomGateway(bridge).registerTokenToL2{value:valueForGateway}(
l2CustomTokenAddress,
maxGas,
gasPriceBid,
maxSubmissionCostForCustomBridge,
creditBackAddress
);
L1GatewayRouter(router).setGateway{value:valueForRouter}(
bridge,
maxGas,
gasPriceBid,
maxSubmissionCostForRouter,
creditBackAddress
);
shouldRegisterGateway = prev;
}
}
文件 36 的 37：TokenGateway.sol
pragma solidity ^0.6.11;
import "./ITokenGateway.sol";
import "./Address.sol";
abstract contract TokenGateway is ITokenGateway {
using Address for address;
address public counterpartGateway;
address public router;
modifier onlyCounterpartGateway() virtual {
require(msg.sender == counterpartGateway, "ONLY_COUNTERPART_GATEWAY");
_;
}
function _initialize(address _counterpartGateway, address _router) internal virtual {
require(_counterpartGateway != address(0), "INVALID_COUNTERPART");
require(counterpartGateway == address(0), "ALREADY_INIT");
counterpartGateway = _counterpartGateway;
router = _router;
}
function isRouter(address _target) internal view returns (bool isTargetRouter) {
return _target == router;
}
function calculateL2TokenAddress(address l1ERC20)
public
view
virtual
override
returns (address);
function outboundTransfer(
address _token,
address _to,
uint256 _amount,
uint256 _maxGas,
uint256 _gasPriceBid,
bytes calldata _data
) external payable virtual override returns (bytes memory);
function getOutboundCalldata(
address _token,
address _from,
address _to,
uint256 _amount,
bytes memory _data
) public view virtual returns (bytes memory);
function finalizeInboundTransfer(
address _token,
address _from,
address _to,
uint256 _amount,
bytes calldata _data
) external payable virtual override;
}
文件 37 的 37：Whitelist.sol
pragma solidity ^0.6.11;
abstract contract WhitelistConsumer {
address public whitelist;
event WhitelistSourceUpdated(address newSource);
modifier onlyWhitelisted() {
if (whitelist != address(0)) {
require(Whitelist(whitelist).isAllowed(msg.sender), "NOT_WHITELISTED");
}
_;
}
function updateWhitelistSource(address newSource) external {
require(msg.sender == whitelist, "NOT_FROM_LIST");
whitelist = newSource;
emit WhitelistSourceUpdated(newSource);
}
}
contract Whitelist {
address public owner;
mapping(address => bool) public isAllowed;
event OwnerUpdated(address newOwner);
event WhitelistUpgraded(address newWhitelist, address[] targets);
constructor() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner, "ONLY_OWNER");
_;
}
function setOwner(address newOwner) external onlyOwner {
owner = newOwner;
emit OwnerUpdated(newOwner);
}
function setWhitelist(address[] memory user, bool[] memory val) external onlyOwner {
require(user.length == val.length, "INVALID_INPUT");
for (uint256 i = 0; i < user.length; i++) {
isAllowed[user[i]] = val[i];
}
}
function triggerConsumers(address newWhitelist, address[] memory targets) external onlyOwner {
for (uint256 i = 0; i < targets.length; i++) {
WhitelistConsumer(targets[i]).updateWhitelistSource(newWhitelist);
}
emit WhitelistUpgraded(newWhitelist, targets);
}
}
{
"compilationTarget": {
"SperaxTokenL1.sol": "SperaxTokenL1"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"address","name":"_spaAddress","type":"address"},{"internalType":"address","name":"_bridge","type":"address"},{"internalType":"address","name":"_router","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newBridge","type":"address"},{"indexed":false,"internalType":"address","name":"newRouter","type":"address"}],"name":"ArbitrumGatewayRouterChanged","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":false,"internalType":"address","name":"oldSPA","type":"address"},{"indexed":false,"internalType":"address","name":"newSPA","type":"address"}],"name":"SPAaddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bridge","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"bridgeMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newBridge","type":"address"},{"internalType":"address","name":"newRouter","type":"address"}],"name":"changeArbToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newSPA","type":"address"}],"name":"changeSpaAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isArbitrumEnabled","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"l2CustomTokenAddress","type":"address"},{"internalType":"uint256","name":"maxSubmissionCostForCustomBridge","type":"uint256"},{"internalType":"uint256","name":"maxSubmissionCostForRouter","type":"uint256"},{"internalType":"uint256","name":"maxGas","type":"uint256"},{"internalType":"uint256","name":"gasPriceBid","type":"uint256"},{"internalType":"uint256","name":"valueForGateway","type":"uint256"},{"internalType":"uint256","name":"valueF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