编译器
0.8.18+commit.87f61d96
文件 1 的 28：Address.sol
pragma solidity ^0.8.1;
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
文件 2 的 28：Bridge.sol
pragma solidity ^0.8.18;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IBridge, MessengerProtocol} from "./interfaces/IBridge.sol";
import {Router} from "./Router.sol";
import {Messenger} from "./Messenger.sol";
import {MessengerGateway} from "./MessengerGateway.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
import {GasUsage} from "./GasUsage.sol";
import {WormholeMessenger} from "./WormholeMessenger.sol";
import {HashUtils} from "./libraries/HashUtils.sol";
contract Bridge is GasUsage, Router, MessengerGateway, IBridge {
using SafeERC20 for IERC20;
using HashUtils for bytes32;
uint public immutable override chainId;
mapping(bytes32 messageHash => uint isProcessed) public override processedMessages;
mapping(bytes32 messageHash => uint isSent) public override sentMessages;
mapping(uint chainId => bytes32 bridgeAddress) public override otherBridges;
mapping(uint chainId => mapping(bytes32 tokenAddress => bool isSupported)) public override otherBridgeTokens;
event TokensSent(
uint amount,
bytes32 recipient,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger
);
event TokensReceived(uint amount, bytes32 recipient, uint nonce, MessengerProtocol messenger, bytes32 message);
event ReceiveFee(uint bridgeTransactionCost, uint messageTransactionCost);
event BridgingFeeFromTokens(uint gas);
event Received(address sender, uint amount);
constructor(
uint chainId_,
uint chainPrecision_,
Messenger allbridgeMessenger_,
WormholeMessenger wormholeMessenger_,
IGasOracle gasOracle_
) Router(chainPrecision_) MessengerGateway(allbridgeMessenger_, wormholeMessenger_) GasUsage(gasOracle_) {
chainId = chainId_;
}
function swapAndBridge(
bytes32 token,
uint amount,
bytes32 recipient,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint feeTokenAmount
) external payable override whenCanSwap {
require(amount > feeTokenAmount, "Bridge: amount too low for fee");
require(recipient != 0, "Bridge: bridge to the zero address");
uint bridgingFee = msg.value + _convertBridgingFeeInTokensToNativeToken(msg.sender, token, feeTokenAmount);
uint amountAfterFee = amount - feeTokenAmount;
uint vUsdAmount = _sendAndSwapToVUsd(token, msg.sender, amountAfterFee);
_sendTokens(vUsdAmount, recipient, destinationChainId, receiveToken, nonce, messenger, bridgingFee);
}
function receiveTokens(
uint amount,
bytes32 recipient,
uint sourceChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint receiveAmountMin
) external payable override whenCanSwap {
require(otherBridges[sourceChainId] != bytes32(0), "Bridge: source not registered");
bytes32 messageWithSender = this
.hashMessage(amount, recipient, sourceChainId, chainId, receiveToken, nonce, messenger)
.hashWithSender(otherBridges[sourceChainId]);
require(processedMessages[messageWithSender] == 0, "Bridge: message processed");
processedMessages[messageWithSender] = 1;
require(this.hasReceivedMessage(messageWithSender, messenger), "Bridge: no message");
uint receiveAmount = _receiveAndSwapFromVUsd(
receiveToken,
address(uint160(uint(recipient))),
amount,
receiveAmountMin
);
if (msg.value > 0) {
payable(address(uint160(uint(recipient)))).call{value: msg.value}("");
}
emit TokensReceived(receiveAmount, recipient, nonce, messenger, messageWithSender);
}
function registerBridge(uint chainId_, bytes32 bridgeAddress) external override onlyOwner {
otherBridges[chainId_] = bridgeAddress;
}
function addBridgeToken(uint chainId_, bytes32 tokenAddress) external override onlyOwner {
otherBridgeTokens[chainId_][tokenAddress] = true;
}
function removeBridgeToken(uint chainId_, bytes32 tokenAddress) external override onlyOwner {
otherBridgeTokens[chainId_][tokenAddress] = false;
}
function withdrawGasTokens(uint amount) external override onlyOwner {
payable(msg.sender).transfer(amount);
}
function withdrawBridgingFeeInTokens(IERC20 token) external onlyOwner {
uint toWithdraw = token.balanceOf(address(this));
if (toWithdraw > 0) {
token.safeTransfer(msg.sender, toWithdraw);
}
}
function getBridgingCostInTokens(
uint destinationChainId,
MessengerProtocol messenger,
address tokenAddress
) external view override returns (uint) {
return
gasOracle.getTransactionGasCostInUSD(
destinationChainId,
gasUsage[destinationChainId] + getMessageGasUsage(destinationChainId, messenger)
) / fromGasOracleScalingFactor[tokenAddress];
}
function hashMessage(
uint amount,
bytes32 recipient,
uint sourceChainId,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger
) external pure override returns (bytes32) {
return
keccak256(abi.encodePacked(amount, recipient, sourceChainId, receiveToken, nonce, messenger))
.replaceChainBytes(uint8(sourceChainId), uint8(destinationChainId));
}
function _sendTokens(
uint amount,
bytes32 recipient,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint bridgingFee
) internal {
require(destinationChainId != chainId, "Bridge: wrong destination chain");
require(otherBridgeTokens[destinationChainId][receiveToken], "Bridge: unknown chain or token");
bytes32 message = this.hashMessage(
amount,
recipient,
chainId,
destinationChainId,
receiveToken,
nonce,
messenger
);
require(sentMessages[message] == 0, "Bridge: tokens already sent");
sentMessages[message] = 1;
uint bridgeTransactionCost = this.getTransactionCost(destinationChainId);
uint messageTransactionCost = _sendMessage(message, messenger);
emit ReceiveFee(bridgeTransactionCost, messageTransactionCost);
unchecked {
require(bridgingFee >= bridgeTransactionCost + messageTransactionCost, "Bridge: not enough fee");
}
emit TokensSent(amount, recipient, destinationChainId, receiveToken, nonce, messenger);
}
function _convertBridgingFeeInTokensToNativeToken(
address user,
bytes32 tokenAddress,
uint feeTokenAmount
) internal returns (uint) {
if (feeTokenAmount == 0) return 0;
address tokenAddress_ = address(uint160(uint(tokenAddress)));
IERC20 token = IERC20(tokenAddress_);
token.safeTransferFrom(user, address(this), feeTokenAmount);
uint fee = (bridgingFeeConversionScalingFactor[tokenAddress_] * feeTokenAmount) / gasOracle.price(chainId);
emit BridgingFeeFromTokens(fee);
return fee;
}
fallback() external payable {
revert("Unsupported");
}
receive() external payable {
emit Received(msg.sender, msg.value);
}
}
文件 3 的 28：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 4 的 28：ERC20.sol
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => 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 override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
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 to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, 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) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, 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 += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(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 _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
文件 5 的 28：GasOracle.sol
pragma solidity ^0.8.18;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
contract GasOracle is Ownable, IGasOracle {
struct ChainData {
uint128 price;
uint128 gasPrice;
}
uint private constant ORACLE_PRECISION = 18;
uint private constant ORACLE_SCALING_FACTOR = 10 ** ORACLE_PRECISION;
uint private immutable fromOracleToChainScalingFactor;
mapping(uint chainId => ChainData) public override chainData;
uint public immutable override chainId;
constructor(uint chainId_, uint chainPrecision) {
chainId = chainId_;
fromOracleToChainScalingFactor = 10 ** (ORACLE_PRECISION - chainPrecision);
}
function setChainData(uint chainId_, uint128 price_, uint128 gasPrice) external override onlyOwner {
chainData[chainId_].price = price_;
chainData[chainId_].gasPrice = gasPrice;
}
function setPrice(uint chainId_, uint128 price_) external override onlyOwner {
chainData[chainId_].price = price_;
}
function setGasPrice(uint chainId_, uint128 gasPrice) external override onlyOwner {
chainData[chainId_].gasPrice = gasPrice;
}
function getTransactionGasCostInNativeToken(
uint otherChainId,
uint gasAmount
) external view override returns (uint) {
return
(chainData[otherChainId].gasPrice * gasAmount * chainData[otherChainId].price) /
chainData[chainId].price /
fromOracleToChainScalingFactor;
}
function getTransactionGasCostInUSD(uint otherChainId, uint gasAmount) external view override returns (uint) {
return (chainData[otherChainId].gasPrice * gasAmount * chainData[otherChainId].price) / ORACLE_SCALING_FACTOR;
}
function crossRate(uint otherChainId) external view override returns (uint) {
return (chainData[otherChainId].price * ORACLE_SCALING_FACTOR) / chainData[chainId].price;
}
function price(uint chainId_) external view override returns (uint) {
return chainData[chainId_].price;
}
fallback() external payable {
revert("Unsupported");
}
receive() external payable {
revert("Unsupported");
}
}
文件 6 的 28：GasUsage.sol
pragma solidity ^0.8.18;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
abstract contract GasUsage is Ownable {
IGasOracle internal gasOracle;
mapping(uint chainId => uint amount) public gasUsage;
constructor(IGasOracle gasOracle_) {
gasOracle = gasOracle_;
}
function setGasUsage(uint chainId, uint gasAmount) external onlyOwner {
gasUsage[chainId] = gasAmount;
}
function setGasOracle(IGasOracle gasOracle_) external onlyOwner {
gasOracle = gasOracle_;
}
function getTransactionCost(uint chainId) external view returns (uint) {
unchecked {
return gasOracle.getTransactionGasCostInNativeToken(chainId, gasUsage[chainId]);
}
}
}
文件 7 的 28：HashUtils.sol
pragma solidity ^0.8.18;
library HashUtils {
function replaceChainBytes(
bytes32 data,
uint8 sourceChainId,
uint8 destinationChainId
) internal pure returns (bytes32 result) {
assembly {
mstore(0x00, data)
mstore8(0x00, sourceChainId)
mstore8(0x01, destinationChainId)
result := mload(0x0)
}
}
function hashWithSender(bytes32 message, bytes32 sender) internal pure returns (bytes32 result) {
assembly {
mstore(0x00, message)
mstore(0x20, sender)
result := or(
and(
message,
0xffff000000000000000000000000000000000000000000000000000000000000
),
and(
keccak256(0x00, 0x40),
0x0000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
)
}
}
function hashWithSenderAddress(bytes32 message, address sender) internal pure returns (bytes32 result) {
assembly {
mstore(0x00, message)
mstore(0x20, sender)
result := or(
and(
message,
0xffff000000000000000000000000000000000000000000000000000000000000
),
and(
keccak256(0x00, 0x40),
0x0000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
)
)
}
}
function hashed(bytes32 message) internal pure returns (bytes32 result) {
assembly {
mstore(0x00, message)
result := keccak256(0x00, 0x20)
}
}
}
文件 8 的 28：IBridge.sol
pragma solidity ^0.8.18;
enum MessengerProtocol {
None,
Allbridge,
Wormhole,
LayerZero
}
interface IBridge {
function chainId() external view returns (uint);
function processedMessages(bytes32) external view returns (uint);
function sentMessages(bytes32) external view returns (uint);
function otherBridges(uint) external view returns (bytes32);
function otherBridgeTokens(uint, bytes32) external view returns (bool);
function getBridgingCostInTokens(
uint destinationChainId,
MessengerProtocol messenger,
address tokenAddress
) external view returns (uint);
function hashMessage(
uint amount,
bytes32 recipient,
uint sourceChainId,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger
) external pure returns (bytes32);
function receiveTokens(
uint amount,
bytes32 recipient,
uint sourceChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint receiveAmountMin
) external payable;
function withdrawGasTokens(uint amount) external;
function registerBridge(uint chainId, bytes32 bridgeAddress) external;
function addBridgeToken(uint chainId, bytes32 tokenAddress) external;
function removeBridgeToken(uint chainId, bytes32 tokenAddress) external;
function swapAndBridge(
bytes32 token,
uint amount,
bytes32 recipient,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint feeTokenAmount
) external payable;
}
文件 9 的 28：IERC20.sol
pragma solidity ^0.8.0;
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 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 from,
address to,
uint256 amount
) external returns (bool);
}
文件 10 的 28：IERC20Metadata.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
文件 11 的 28：IGasOracle.sol
pragma solidity ^0.8.18;
interface IGasOracle {
function chainData(uint chainId) external view returns (uint128 price, uint128 gasPrice);
function chainId() external view returns (uint);
function crossRate(uint otherChainId) external view returns (uint);
function getTransactionGasCostInNativeToken(uint otherChainId, uint256 gasAmount) external view returns (uint);
function getTransactionGasCostInUSD(uint otherChainId, uint256 gasAmount) external view returns (uint);
function price(uint chainId) external view returns (uint);
function setChainData(uint chainId, uint128 price, uint128 gasPrice) external;
function setGasPrice(uint chainId, uint128 gasPrice) external;
function setPrice(uint chainId, uint128 price) external;
}
文件 12 的 28：IMessenger.sol
pragma solidity ^0.8.18;
interface IMessenger {
function sentMessagesBlock(bytes32 message) external view returns (uint);
function receivedMessages(bytes32 message) external view returns (uint);
function sendMessage(bytes32 message) external payable;
function receiveMessage(bytes32 message, uint v1v2, bytes32 r1, bytes32 s1, bytes32 r2, bytes32 s2) external;
}
文件 13 的 28：IRouter.sol
pragma solidity ^0.8.18;
import {MessengerProtocol} from "./IBridge.sol";
interface IRouter {
function canSwap() external view returns (uint8);
function swap(uint amount, bytes32 token, bytes32 receiveToken, address recipient, uint receiveAmountMin) external;
}
文件 14 的 28：IWormhole.sol
pragma solidity ^0.8.18;
interface Structs {
struct Provider {
uint16 chainId;
uint16 governanceChainId;
bytes32 governanceContract;
}
struct GuardianSet {
address[] keys;
uint32 expirationTime;
}
struct Signature {
bytes32 r;
bytes32 s;
uint8 v;
uint8 guardianIndex;
}
struct VM {
uint8 version;
uint32 timestamp;
uint32 nonce;
uint16 emitterChainId;
bytes32 emitterAddress;
uint64 sequence;
uint8 consistencyLevel;
bytes payload;
uint32 guardianSetIndex;
Signature[] signatures;
bytes32 hash;
}
}
interface IWormhole is Structs {
event LogMessagePublished(
address indexed sender,
uint64 sequence,
uint32 nonce,
bytes payload,
uint8 consistencyLevel
);
function publishMessage(
uint32 nonce,
bytes memory payload,
uint8 consistencyLevel
) external payable returns (uint64 sequence);
function parseAndVerifyVM(
bytes calldata encodedVM
) external view returns (Structs.VM memory vm, bool valid, string memory reason);
function verifyVM(Structs.VM memory vm) external view returns (bool valid, string memory reason);
function verifySignatures(
bytes32 hash,
Structs.Signature[] memory signatures,
Structs.GuardianSet memory guardianSet
) external pure returns (bool valid, string memory reason);
function parseVM(bytes memory encodedVM) external pure returns (Structs.VM memory vm);
function getGuardianSet(uint32 index) external view returns (Structs.GuardianSet memory);
function getCurrentGuardianSetIndex() external view returns (uint32);
function getGuardianSetExpiry() external view returns (uint32);
function governanceActionIsConsumed(bytes32 hash) external view returns (bool);
function isInitialized(address impl) external view returns (bool);
function chainId() external view returns (uint16);
function governanceChainId() external view returns (uint16);
function governanceContract() external view returns (bytes32);
function messageFee() external view returns (uint);
}
文件 15 的 28：Math.sol
pragma solidity ^0.8.0;
library Math {
enum Rounding {
Down,
Up,
Zero
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function average(uint256 a, uint256 b) internal pure returns (uint256) {
return (a & b) + (a ^ b) / 2;
}
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
return a == 0 ? 0 : (a - 1) / b + 1;
}
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
uint256 prod0;
uint256 prod1;
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
if (prod1 == 0) {
return prod0 / denominator;
}
require(denominator > prod1);
uint256 remainder;
assembly {
remainder := mulmod(x, y, denominator)
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
uint256 twos = denominator & (~denominator + 1);
assembly {
denominator := div(denominator, twos)
prod0 := div(prod0, twos)
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
uint256 inverse = (3 * denominator) ^ 2;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
result = prod0 * inverse;
return result;
}
}
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 result = 1 << (log2(a) >> 1);
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
文件 16 的 28：Messenger.sol
pragma solidity ^0.8.18;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
import {IMessenger} from "./interfaces/IMessenger.sol";
import {GasUsage} from "./GasUsage.sol";
import {HashUtils} from "./libraries/HashUtils.sol";
contract Messenger is Ownable, GasUsage, IMessenger {
using HashUtils for bytes32;
uint public immutable chainId;
bytes32 public otherChainIds;
address private primaryValidator;
mapping(address => bool) private secondaryValidators;
mapping(bytes32 messageHash => uint blockNumber) public override sentMessagesBlock;
mapping(bytes32 messageHash => uint isReceived) public override receivedMessages;
event MessageSent(bytes32 indexed message);
event MessageReceived(bytes32 indexed message);
event Received(address, uint);
event SecondaryValidatorsSet(address[] oldValidators, address[] newValidators);
constructor(
uint chainId_,
bytes32 otherChainIds_,
IGasOracle gasOracle_,
address primaryValidator_,
address[] memory validators
) GasUsage(gasOracle_) {
chainId = chainId_;
otherChainIds = otherChainIds_;
primaryValidator = primaryValidator_;
uint length = validators.length;
for (uint index; index < length; ) {
secondaryValidators[validators[index]] = true;
unchecked {
index++;
}
}
}
function sendMessage(bytes32 message) external payable override {
require(uint8(message[0]) == chainId, "Messenger: wrong chainId");
require(otherChainIds[uint8(message[1])] != 0, "Messenger: wrong destination");
bytes32 messageWithSender = message.hashWithSenderAddress(msg.sender);
require(sentMessagesBlock[messageWithSender] == 0, "Messenger: has message");
sentMessagesBlock[messageWithSender] = block.number;
require(msg.value >= this.getTransactionCost(uint8(message[1])), "Messenger: not enough fee");
emit MessageSent(messageWithSender);
}
function receiveMessage(
bytes32 message,
uint v1v2,
bytes32 r1,
bytes32 s1,
bytes32 r2,
bytes32 s2
) external override {
bytes32 hashedMessage = message.hashed();
require(ecrecover(hashedMessage, uint8(v1v2 >> 8), r1, s1) == primaryValidator, "Messenger: invalid primary");
require(secondaryValidators[ecrecover(hashedMessage, uint8(v1v2), r2, s2)], "Messenger: invalid secondary");
require(uint8(message[1]) == chainId, "Messenger: wrong chainId");
receivedMessages[message] = 1;
emit MessageReceived(message);
}
function withdrawGasTokens(uint amount) external onlyOwner {
payable(msg.sender).transfer(amount);
}
function setPrimaryValidator(address value) external onlyOwner {
primaryValidator = value;
}
function setSecondaryValidators(address[] memory oldValidators, address[] memory newValidators) external onlyOwner {
uint length = oldValidators.length;
uint index;
for (; index < length; ) {
secondaryValidators[oldValidators[index]] = false;
unchecked {
index++;
}
}
length = newValidators.length;
index = 0;
for (; index < length; ) {
secondaryValidators[newValidators[index]] = true;
unchecked {
index++;
}
}
emit SecondaryValidatorsSet(oldValidators, newValidators);
}
function setOtherChainIds(bytes32 value) external onlyOwner {
otherChainIds = value;
}
fallback() external payable {
revert("Unsupported");
}
receive() external payable {
emit Received(msg.sender, msg.value);
}
}
文件 17 的 28：MessengerGateway.sol
pragma solidity ^0.8.18;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
import {Messenger} from "./Messenger.sol";
import {MessengerProtocol} from "./interfaces/IBridge.sol";
import {WormholeMessenger} from "./WormholeMessenger.sol";
abstract contract MessengerGateway is Ownable {
Messenger private allbridgeMessenger;
WormholeMessenger private wormholeMessenger;
constructor(Messenger allbridgeMessenger_, WormholeMessenger wormholeMessenger_) {
allbridgeMessenger = allbridgeMessenger_;
wormholeMessenger = wormholeMessenger_;
}
function setAllbridgeMessenger(Messenger allbridgeMessenger_) external onlyOwner {
allbridgeMessenger = allbridgeMessenger_;
}
function setWormholeMessenger(WormholeMessenger wormholeMessenger_) external onlyOwner {
wormholeMessenger = wormholeMessenger_;
}
function getMessageCost(uint chainId, MessengerProtocol protocol) external view returns (uint) {
if (protocol == MessengerProtocol.Allbridge) {
return allbridgeMessenger.getTransactionCost(chainId);
} else if (protocol == MessengerProtocol.Wormhole) {
return wormholeMessenger.getTransactionCost(chainId);
}
return 0;
}
function getMessageGasUsage(uint chainId, MessengerProtocol protocol) public view returns (uint) {
if (protocol == MessengerProtocol.Allbridge) {
return allbridgeMessenger.gasUsage(chainId);
} else if (protocol == MessengerProtocol.Wormhole) {
return wormholeMessenger.gasUsage(chainId);
}
return 0;
}
function hasReceivedMessage(bytes32 message, MessengerProtocol protocol) external view returns (bool) {
if (protocol == MessengerProtocol.Allbridge) {
return allbridgeMessenger.receivedMessages(message) != 0;
} else if (protocol == MessengerProtocol.Wormhole) {
return wormholeMessenger.receivedMessages(message) != 0;
} else {
revert("Not implemented");
}
}
function hasSentMessage(bytes32 message) external view returns (bool) {
return allbridgeMessenger.sentMessagesBlock(message) != 0 || wormholeMessenger.sentMessages(message) != 0;
}
function _sendMessage(bytes32 message, MessengerProtocol protocol) internal returns (uint messageCost) {
if (protocol == MessengerProtocol.Allbridge) {
messageCost = allbridgeMessenger.getTransactionCost(uint8(message[1]));
allbridgeMessenger.sendMessage{value: messageCost}(message);
} else if (protocol == MessengerProtocol.Wormhole) {
messageCost = wormholeMessenger.getTransactionCost(uint8(message[1]));
wormholeMessenger.sendMessage{value: messageCost}(message);
} else {
revert("Not implemented");
}
}
}
文件 18 的 28：Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 19 的 28：Pool.sol
pragma solidity ^0.8.18;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {RewardManager} from "./RewardManager.sol";
contract Pool is RewardManager {
using SafeERC20 for ERC20;
uint private constant SYSTEM_PRECISION = 3;
int private constant PP = 1e4;
uint private constant MAX_TOKEN_BALANCE = 2 ** 40;
uint16 public feeShareBP;
address public router;
uint public tokenBalance;
uint public vUsdBalance;
uint public balanceRatioMinBP;
uint public reserves;
uint public immutable a;
uint public d;
uint private immutable tokenAmountReduce;
uint private immutable tokenAmountIncrease;
address private stopAuthority;
uint public canDeposit = 1;
uint public canWithdraw = 1;
event SwappedToVUsd(address sender, address token, uint amount, uint vUsdAmount, uint fee);
event SwappedFromVUsd(address recipient, address token, uint vUsdAmount, uint amount, uint fee);
constructor(
address router_,
uint a_,
ERC20 token_,
uint16 feeShareBP_,
uint balanceRatioMinBP_,
string memory lpName,
string memory lpSymbol
) RewardManager(token_, lpName, lpSymbol) {
a = a_;
router = router_;
stopAuthority = owner();
feeShareBP = feeShareBP_;
balanceRatioMinBP = balanceRatioMinBP_;
uint decimals = token_.decimals();
tokenAmountReduce = decimals > SYSTEM_PRECISION ? 10 ** (decimals - SYSTEM_PRECISION) : 0;
tokenAmountIncrease = decimals < SYSTEM_PRECISION ? 10 ** (SYSTEM_PRECISION - decimals) : 0;
}
modifier onlyRouter() {
require(router == msg.sender, "Pool: is not router");
_;
}
modifier onlyStopAuthority() {
require(stopAuthority == msg.sender, "Pool: is not stopAuthority");
_;
}
modifier validateBalanceRatio() {
_;
if (tokenBalance > vUsdBalance) {
require((vUsdBalance * BP) / tokenBalance >= balanceRatioMinBP, "Pool: low vUSD balance");
} else if (tokenBalance < vUsdBalance) {
require((tokenBalance * BP) / vUsdBalance >= balanceRatioMinBP, "Pool: low token balance");
}
}
modifier whenCanDeposit() {
require(canDeposit == 1, "Pool: deposit prohibited");
_;
}
modifier whenCanWithdraw() {
require(canWithdraw == 1, "Pool: withdraw prohibited");
_;
}
function deposit(uint amount) external whenCanDeposit {
uint oldD = d;
uint amountSP = _toSystemPrecision(amount);
require(amountSP > 0, "Pool: too little");
token.safeTransferFrom(msg.sender, address(this), amount);
reserves += amountSP;
uint oldBalance = (tokenBalance + vUsdBalance);
if (oldD == 0 || oldBalance == 0) {
uint halfAmount = amountSP >> 1;
tokenBalance += halfAmount;
vUsdBalance += halfAmount;
} else {
tokenBalance += (amountSP * tokenBalance) / oldBalance;
vUsdBalance += (amountSP * vUsdBalance) / oldBalance;
}
_updateD();
_depositLp(msg.sender, d - oldD);
require(tokenBalance < MAX_TOKEN_BALANCE, "Pool: too much");
}
function withdraw(uint amountLp) external whenCanWithdraw {
uint oldD = d;
_withdrawLp(msg.sender, amountLp);
uint oldBalance = (tokenBalance + vUsdBalance);
tokenBalance -= (amountLp * tokenBalance) / oldBalance;
vUsdBalance -= (amountLp * vUsdBalance) / oldBalance;
require(tokenBalance + vUsdBalance < oldBalance, "Pool: zero changes");
require(amountLp <= reserves, "Pool: reserves");
reserves -= amountLp;
_updateD();
require(d < oldD, "Pool: zero D changes");
token.safeTransfer(msg.sender, _fromSystemPrecision(amountLp));
}
function swapToVUsd(
address user,
uint amount,
bool zeroFee
) external onlyRouter validateBalanceRatio returns (uint) {
uint result;
uint fee;
if (amount > 0) {
if (!zeroFee) {
fee = (amount * feeShareBP) / BP;
}
uint amountIn = _toSystemPrecision(amount - fee);
fee = amount - _fromSystemPrecision(amountIn);
tokenBalance += amountIn;
reserves += amountIn;
uint vUsdNewAmount = this.getY(tokenBalance);
if (vUsdBalance > vUsdNewAmount) {
result = vUsdBalance - vUsdNewAmount;
}
vUsdBalance = vUsdNewAmount;
_addRewards(fee);
}
emit SwappedToVUsd(user, address(token), amount, result, fee);
return result;
}
function swapFromVUsd(
address user,
uint amount,
uint receiveAmountMin,
bool zeroFee
) external onlyRouter validateBalanceRatio returns (uint) {
uint resultSP;
uint result;
uint fee;
if (amount > 0) {
vUsdBalance += amount;
uint newAmount = this.getY(vUsdBalance);
if (tokenBalance > newAmount) {
resultSP = tokenBalance - newAmount;
result = _fromSystemPrecision(resultSP);
}
require(resultSP <= reserves, "Pool: reserves");
reserves -= resultSP;
if (!zeroFee) {
fee = (result * feeShareBP) / BP;
}
unchecked {
result -= fee;
}
tokenBalance = newAmount;
require(result >= receiveAmountMin, "Pool: slippage");
token.safeTransfer(user, result);
_addRewards(fee);
}
emit SwappedFromVUsd(user, address(token), amount, result, fee);
return result;
}
function setFeeShare(uint16 feeShareBP_) external onlyOwner {
require(feeShareBP_ <= BP, "Pool: too large");
feeShareBP = feeShareBP_;
}
function adjustTotalLpAmount() external onlyOwner {
if (d > totalSupply()) {
_depositLp(owner(), d - totalSupply());
}
}
function setBalanceRatioMinBP(uint balanceRatioMinBP_) external onlyOwner {
require(balanceRatioMinBP_ <= BP, "Pool: too large");
balanceRatioMinBP = balanceRatioMinBP_;
}
function stopDeposit() external onlyStopAuthority {
canDeposit = 0;
}
function startDeposit() external onlyOwner {
canDeposit = 1;
}
function stopWithdraw() external onlyStopAuthority {
canWithdraw = 0;
}
function startWithdraw() external onlyOwner {
canWithdraw = 1;
}
function setStopAuthority(address stopAuthority_) external onlyOwner {
stopAuthority = stopAuthority_;
}
function setRouter(address router_) external onlyOwner {
router = router_;
}
function getY(uint x) external view returns (uint) {
uint d_ = d;
uint a4 = a << 2;
uint a8 = a4 << 1;
int part1 = int(a4) * (int(d_) - int(x)) - int(d_);
uint part2 = x * (a4 * d_ * d_ * d_ + x * uint(part1 * part1));
return SafeCast.toUint256(int(_sqrt(part2)) + int(x) * part1) / (a8 * x) + 1;
}
function getPrice() external view returns (uint) {
uint x = tokenBalance;
uint a8 = a << 3;
uint dCubed = d * d * d;
int p1 = int(a << 2) * (int(d) - int(x)) - int(d);
uint p2 = x * ((a << 2) * dCubed + x * uint(p1 * p1));
int p3 = int(dCubed) + int((a << 3) * d * x * x) - int(a8 * x * x * x) - int((d << 1) * x * x);
return SafeCast.toUint256((PP >> 1) + ((PP * p3) / int((x << 2) * _sqrt(p2))));
}
function _updateD() internal {
uint x = tokenBalance;
uint y = vUsdBalance;
uint xy = x * y;
uint a_ = a;
uint p1 = a_ * xy * (x + y);
uint p2 = (xy * ((a_ << 2) - 1)) / 3;
uint p3 = _sqrt((p1 * p1) + (p2 * p2 * p2));
unchecked {
uint d_ = _cbrt(p1 + p3);
if (p3 > p1) {
d_ -= _cbrt(p3 - p1);
} else {
d_ += _cbrt(p1 - p3);
}
d = (d_ << 1);
}
}
function _toSystemPrecision(uint amount) internal view returns (uint) {
if (tokenAmountReduce > 0) {
return amount / tokenAmountReduce;
} else if (tokenAmountIncrease > 0) {
return amount * tokenAmountIncrease;
}
return amount;
}
function _fromSystemPrecision(uint amount) internal view returns (uint) {
if (tokenAmountReduce > 0) {
return amount * tokenAmountReduce;
} else if (tokenAmountIncrease > 0) {
return amount / tokenAmountIncrease;
}
return amount;
}
function _sqrt(uint n) internal pure returns (uint) {
unchecked {
if (n > 0) {
uint x = (n >> 1) + 1;
uint y = (x + n / x) >> 1;
while (x > y) {
x = y;
y = (x + n / x) >> 1;
}
return x;
}
return 0;
}
}
function _cbrt(uint n) internal pure returns (uint) {
unchecked {
uint x = 0;
for (uint y = 1 << 255; y > 0; y >>= 3) {
x <<= 1;
uint z = 3 * x * (x + 1) + 1;
if (n / y >= z) {
n -= y * z;
x += 1;
}
}
return x;
}
}
fallback() external payable {
revert("Unsupported");
}
receive() external payable {
revert("Unsupported");
}
}
文件 20 的 28：RewardManager.sol
pragma solidity ^0.8.18;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
contract RewardManager is Ownable, ERC20 {
using SafeERC20 for ERC20;
uint private constant P = 52;
uint internal constant BP = 1e4;
uint public accRewardPerShareP;
ERC20 public immutable token;
mapping(address user => uint amount) public userRewardDebt;
uint public adminFeeShareBP;
uint public adminFeeAmount;
event Deposit(address indexed user, uint amount);
event Withdraw(address indexed user, uint amount);
event RewardsClaimed(address indexed user, uint amount);
constructor(ERC20 token_, string memory lpName, string memory lpSymbol) ERC20(lpName, lpSymbol) {
token = token_;
adminFeeShareBP = BP / 5;
}
function claimRewards() external {
uint userLpAmount = balanceOf(msg.sender);
if (userLpAmount > 0) {
uint rewards = (userLpAmount * accRewardPerShareP) >> P;
uint pending = rewards - userRewardDebt[msg.sender];
if (pending > 0) {
userRewardDebt[msg.sender] = rewards;
token.safeTransfer(msg.sender, pending);
emit RewardsClaimed(msg.sender, pending);
}
}
}
function setAdminFeeShare(uint adminFeeShareBP_) external onlyOwner {
require(adminFeeShareBP_ <= BP, "RewardManager: too high");
adminFeeShareBP = adminFeeShareBP_;
}
function claimAdminFee() external onlyOwner {
if (adminFeeAmount > 0) {
token.safeTransfer(msg.sender, adminFeeAmount);
adminFeeAmount = 0;
}
}
function pendingReward(address user) external view returns (uint) {
return ((balanceOf(user) * accRewardPerShareP) >> P) - userRewardDebt[user];
}
function decimals() public pure override returns (uint8) {
return 3;
}
function _addRewards(uint rewardAmount) internal {
if (totalSupply() > 0) {
uint adminFeeRewards = (rewardAmount * adminFeeShareBP) / BP;
unchecked {
rewardAmount -= adminFeeRewards;
}
accRewardPerShareP += (rewardAmount << P) / totalSupply();
adminFeeAmount += adminFeeRewards;
}
}
function _depositLp(address to, uint lpAmount) internal {
uint pending;
uint userLpAmount = balanceOf(to);
if (userLpAmount > 0) {
pending = ((userLpAmount * accRewardPerShareP) >> P) - userRewardDebt[to];
}
userLpAmount += lpAmount;
_mint(to, lpAmount);
userRewardDebt[to] = (userLpAmount * accRewardPerShareP) >> P;
if (pending > 0) {
token.safeTransfer(to, pending);
emit RewardsClaimed(to, pending);
}
emit Deposit(to, lpAmount);
}
function _withdrawLp(address from, uint lpAmount) internal {
uint userLpAmount = balanceOf(from);
require(userLpAmount >= lpAmount, "RewardManager: not enough amount");
uint pending;
if (userLpAmount > 0) {
pending = ((userLpAmount * accRewardPerShareP) >> P) - userRewardDebt[from];
}
userLpAmount -= lpAmount;
_burn(from, lpAmount);
userRewardDebt[from] = (userLpAmount * accRewardPerShareP) >> P;
if (pending > 0) {
token.safeTransfer(from, pending);
emit RewardsClaimed(from, pending);
}
emit Withdraw(from, lpAmount);
}
function _transfer(address, address, uint) internal pure override {
revert("Unsupported");
}
function _approve(address, address, uint) internal pure override {
revert("Unsupported");
}
}
文件 21 的 28：Router.sol
pragma solidity ^0.8.18;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IRouter} from "./interfaces/IRouter.sol";
import {MessengerProtocol} from "./interfaces/IBridge.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Pool} from "./Pool.sol";
abstract contract Router is Ownable, IRouter {
using SafeERC20 for ERC20;
uint private immutable chainPrecision;
uint internal constant ORACLE_PRECISION = 18;
mapping(bytes32 tokenId => Pool) public pools;
mapping(address tokenAddress => uint scalingFactor) internal fromGasOracleScalingFactor;
mapping(address tokenAddress => uint scalingFactor) internal bridgingFeeConversionScalingFactor;
address private stopAuthority;
address private rebalancer;
uint8 public override canSwap = 1;
event Swapped(
address sender,
address recipient,
bytes32 sendToken,
bytes32 receiveToken,
uint sendAmount,
uint receiveAmount
);
constructor(uint chainPrecision_) {
chainPrecision = chainPrecision_;
stopAuthority = owner();
}
modifier whenCanSwap() {
require(canSwap == 1, "Router: swap prohibited");
_;
}
modifier onlyStopAuthority() {
require(stopAuthority == msg.sender, "Router: is not stopAuthority");
_;
}
function swap(
uint amount,
bytes32 token,
bytes32 receiveToken,
address recipient,
uint receiveAmountMin
) external override whenCanSwap {
uint vUsdAmount = _sendAndSwapToVUsd(token, msg.sender, amount);
uint receivedAmount = _receiveAndSwapFromVUsd(receiveToken, recipient, vUsdAmount, receiveAmountMin);
emit Swapped(msg.sender, recipient, token, receiveToken, amount, receivedAmount);
}
function addPool(Pool pool, bytes32 token) external onlyOwner {
pools[token] = pool;
address tokenAddress = address(uint160(uint(token)));
uint tokenDecimals = ERC20(tokenAddress).decimals();
bridgingFeeConversionScalingFactor[tokenAddress] = 10 ** (ORACLE_PRECISION - tokenDecimals + chainPrecision);
fromGasOracleScalingFactor[tokenAddress] = 10 ** (ORACLE_PRECISION - tokenDecimals);
}
function stopSwap() external onlyStopAuthority {
canSwap = 0;
}
function startSwap() external onlyOwner {
canSwap = 1;
}
function setStopAuthority(address stopAuthority_) external onlyOwner {
stopAuthority = stopAuthority_;
}
function setRebalancer(address rebalancer_) external onlyOwner {
rebalancer = rebalancer_;
}
function _receiveAndSwapFromVUsd(
bytes32 token,
address recipient,
uint vUsdAmount,
uint receiveAmountMin
) internal returns (uint) {
Pool tokenPool = pools[token];
require(address(tokenPool) != address(0), "Router: no receive pool");
return tokenPool.swapFromVUsd(recipient, vUsdAmount, receiveAmountMin, recipient == rebalancer);
}
function _sendAndSwapToVUsd(bytes32 token, address user, uint amount) internal virtual returns (uint) {
Pool pool = pools[token];
require(address(pool) != address(0), "Router: no pool");
ERC20(address(uint160(uint(token)))).safeTransferFrom(user, address(pool), amount);
return pool.swapToVUsd(user, amount, user == rebalancer);
}
}
文件 22 的 28：SafeCast.sol
pragma solidity ^0.8.0;
library SafeCast {
function toUint248(uint256 value) internal pure returns (uint248) {
require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
return uint248(value);
}
function toUint240(uint256 value) internal pure returns (uint240) {
require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
return uint240(value);
}
function toUint232(uint256 value) internal pure returns (uint232) {
require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
return uint232(value);
}
function toUint224(uint256 value) internal pure returns (uint224) {
require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
return uint224(value);
}
function toUint216(uint256 value) internal pure returns (uint216) {
require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
return uint216(value);
}
function toUint208(uint256 value) internal pure returns (uint208) {
require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
return uint208(value);
}
function toUint200(uint256 value) internal pure returns (uint200) {
require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
return uint200(value);
}
function toUint192(uint256 value) internal pure returns (uint192) {
require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
return uint192(value);
}
function toUint184(uint256 value) internal pure returns (uint184) {
require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
return uint184(value);
}
function toUint176(uint256 value) internal pure returns (uint176) {
require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
return uint176(value);
}
function toUint168(uint256 value) internal pure returns (uint168) {
require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
return uint168(value);
}
function toUint160(uint256 value) internal pure returns (uint160) {
require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
return uint160(value);
}
function toUint152(uint256 value) internal pure returns (uint152) {
require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
return uint152(value);
}
function toUint144(uint256 value) internal pure returns (uint144) {
require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
return uint144(value);
}
function toUint136(uint256 value) internal pure returns (uint136) {
require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
return uint136(value);
}
function toUint128(uint256 value) internal pure returns (uint128) {
require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
return uint128(value);
}
function toUint120(uint256 value) internal pure returns (uint120) {
require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
return uint120(value);
}
function toUint112(uint256 value) internal pure returns (uint112) {
require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
return uint112(value);
}
function toUint104(uint256 value) internal pure returns (uint104) {
require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
return uint104(value);
}
function toUint96(uint256 value) internal pure returns (uint96) {
require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
return uint96(value);
}
function toUint88(uint256 value) internal pure returns (uint88) {
require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
return uint88(value);
}
function toUint80(uint256 value) internal pure returns (uint80) {
require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
return uint80(value);
}
function toUint72(uint256 value) internal pure returns (uint72) {
require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
return uint72(value);
}
function toUint64(uint256 value) internal pure returns (uint64) {
require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
return uint64(value);
}
function toUint56(uint256 value) internal pure returns (uint56) {
require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
return uint56(value);
}
function toUint48(uint256 value) internal pure returns (uint48) {
require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
return uint48(value);
}
function toUint40(uint256 value) internal pure returns (uint40) {
require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
return uint40(value);
}
function toUint32(uint256 value) internal pure returns (uint32) {
require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
return uint32(value);
}
function toUint24(uint256 value) internal pure returns (uint24) {
require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
return uint24(value);
}
function toUint16(uint256 value) internal pure returns (uint16) {
require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
return uint16(value);
}
function toUint8(uint256 value) internal pure returns (uint8) {
require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
return uint8(value);
}
function toUint256(int256 value) internal pure returns (uint256) {
require(value >= 0, "SafeCast: value must be positive");
return uint256(value);
}
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
}
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
}
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
}
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
}
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
}
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
}
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
}
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
}
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
}
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
}
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
}
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
}
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
}
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
}
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
}
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
}
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
}
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
}
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
}
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
}
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
}
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
}
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
}
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
}
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
}
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
}
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
}
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
}
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
}
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
}
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
}
function toInt256(uint256 value) internal pure returns (int256) {
require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
return int256(value);
}
}
文件 23 的 28：SafeERC20.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";
library SafeERC20 {
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) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
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 24 的 28：TestBridgeForSwap.sol
pragma solidity ^0.8.18;
import {IBridge, MessengerProtocol} from "../interfaces/IBridge.sol";
import {Router} from "../Router.sol";
contract TestBridgeForSwap is IBridge, Router {
uint public chainId;
mapping(bytes32 messageHash => uint isProcessed) public override processedMessages;
mapping(bytes32 messageHash => uint isSent) public override sentMessages;
mapping(uint chainId => bytes32 bridgeAddress) public override otherBridges;
mapping(uint chainId => mapping(bytes32 tokenAddress => bool isSupported)) public override otherBridgeTokens;
event vUsdSent(uint amount);
constructor() Router(18) {}
function swapAndBridge(
bytes32 token,
uint amount,
bytes32 recipient,
uint destinationChainId,
bytes32 receiveToken,
uint nonce,
MessengerProtocol messenger,
uint feeTokenAmount
) external payable override {}
function receiveTokens(
uint amount,
bytes32,
uint,
bytes32 receiveToken,
uint,
MessengerProtocol,
uint receiveAmountMin
) external payable override {}
function withdrawGasTokens(uint amount) external override onlyOwner {}
function registerBridge(uint chainId_, bytes32 bridgeAddress_) external override onlyOwner {}
function addBridgeToken(uint chainId_, bytes32 tokenAddress_) external override onlyOwner {}
function removeBridgeToken(uint chainId_, bytes32 tokenAddress_) external override onlyOwner {}
function getBridgingCostInTokens(
uint,
MessengerProtocol,
address
) external pure override returns (uint) {
return 0;
}
function hashMessage(
uint,
bytes32,
uint,
uint,
bytes32,
uint,
MessengerProtocol
) external pure override returns (bytes32) {
return 0;
}
function _sendAndSwapToVUsd(bytes32 token, address user, uint amount) internal override returns (uint) {
uint vUsdAmount = super._sendAndSwapToVUsd(token, user, amount);
emit vUsdSent(vUsdAmount);
return vUsdAmount;
}
}
文件 25 的 28：TestPool.sol
pragma solidity ^0.8.18;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Pool} from "../Pool.sol";
import {RewardManager} from "../RewardManager.sol";
contract TestPool is Pool {
constructor(
address router_,
uint a_,
ERC20 token_,
uint16 feeShareBP_,
uint balanceRatioMinBP_
) Pool(router_, a_, token_, feeShareBP_, balanceRatioMinBP_, "LP", "LP") {}
function setVUsdBalance(uint vUsdBalance_) public {
vUsdBalance = vUsdBalance_;
}
function setTokenBalance(uint tokenBalance_) public {
tokenBalance = tokenBalance_;
}
}
文件 26 的 28：TestPoolForRewards.sol
pragma solidity ^0.8.18;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {RewardManager} from "../RewardManager.sol";
contract TestPoolForRewards is RewardManager {
constructor(ERC20 token) RewardManager(token, "LP", "LP") {}
function deposit(uint amount) external {
_depositLp(msg.sender, amount);
}
function withdraw(uint amount) external {
_withdrawLp(msg.sender, amount);
}
function addRewards(uint amount) external {
_addRewards(amount);
}
}
文件 27 的 28：WormholeMessenger.sol
pragma solidity ^0.8.18;
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {IGasOracle} from "./interfaces/IGasOracle.sol";
import {IMessenger} from "./interfaces/IMessenger.sol";
import {IWormhole} from "./interfaces/IWormhole.sol";
import {GasUsage} from "./GasUsage.sol";
import {GasOracle} from "./GasOracle.sol";
import {HashUtils} from "./libraries/HashUtils.sol";
contract WormholeMessenger is Ownable, GasUsage {
using HashUtils for bytes32;
IWormhole private immutable wormhole;
uint public immutable chainId;
bytes32 public otherChainIds;
uint32 private nonce;
uint8 private commitmentLevel;
mapping(uint16 chainId => bytes32 wormholeMessengerAddress) private otherWormholeMessengers;
mapping(bytes32 messageHash => uint isReceived) public receivedMessages;
mapping(bytes32 messageHash => uint isSent) public sentMessages;
event MessageSent(bytes32 indexed message, uint64 sequence);
event MessageReceived(bytes32 indexed message, uint64 sequence);
event Received(address, uint);
constructor(
uint chainId_,
bytes32 otherChainIds_,
IWormhole wormhole_,
uint8 commitmentLevel_,
IGasOracle gasOracle_
) GasUsage(gasOracle_) {
chainId = chainId_;
otherChainIds = otherChainIds_;
wormhole = wormhole_;
commitmentLevel = commitmentLevel_;
}
function sendMessage(bytes32 message) external payable {
require(uint8(message[0]) == chainId, "WormholeMessenger: wrong chainId");
require(otherChainIds[uint8(message[1])] != 0, "Messenger: wrong destination");
bytes32 messageWithSender = message.hashWithSenderAddress(msg.sender);
uint32 nonce_ = nonce;
uint64 sequence = wormhole.publishMessage(nonce_, abi.encodePacked(messageWithSender), commitmentLevel);
unchecked {
nonce = nonce_ + 1;
}
require(sentMessages[messageWithSender] == 0, "WormholeMessenger: has message");
sentMessages[messageWithSender] = 1;
emit MessageSent(messageWithSender, sequence);
}
function receiveMessage(bytes memory encodedMsg) external {
(IWormhole.VM memory vm, bool valid, string memory reason) = wormhole.parseAndVerifyVM(encodedMsg);
require(valid, reason);
require(vm.payload.length == 32, "WormholeMessenger: wrong length");
bytes32 messageWithSender = bytes32(vm.payload);
require(uint8(messageWithSender[1]) == chainId, "WormholeMessenger: wrong chainId");
require(otherWormholeMessengers[vm.emitterChainId] == vm.emitterAddress, "WormholeMessenger: wrong emitter");
receivedMessages[messageWithSender] = 1;
emit MessageReceived(messageWithSender, vm.sequence);
}
function setCommitmentLevel(uint8 value) external onlyOwner {
commitmentLevel = value;
}
function setOtherChainIds(bytes32 value) external onlyOwner {
otherChainIds = value;
}
function registerWormholeMessenger(uint16 chainId_, bytes32 address_) external onlyOwner {
otherWormholeMessengers[chainId_] = address_;
}
function withdrawGasTokens(uint amount) external onlyOwner {
payable(msg.sender).transfer(amount);
}
fallback() external payable {
revert("Unsupported");
}
receive() external payable {
emit Received(msg.sender, msg.value);
}
}
文件 28 的 28：draft-IERC20Permit.sol
pragma solidity ^0.8.0;
interface IERC20Permit {
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
function nonces(address owner) external view returns (uint256);
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
{
"compilationTarget": {
"contracts/Pool.sol": "Pool"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 1000
},
"remappings": []
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