Código Fuente del Contrato
Archivo 1 de 1: AggregationRouterV5.sol
pragma solidity 0.8.17;
interface IClipperExchangeInterface {
struct Signature {
uint8 v;
bytes32 r;
bytes32 s;
}
function sellEthForToken(address outputToken, uint256 inputAmount, uint256 outputAmount, uint256 goodUntil, address destinationAddress, Signature calldata theSignature, bytes calldata auxiliaryData) external payable;
function sellTokenForEth(address inputToken, uint256 inputAmount, uint256 outputAmount, uint256 goodUntil, address destinationAddress, Signature calldata theSignature, bytes calldata auxiliaryData) external;
function swap(address inputToken, address outputToken, uint256 inputAmount, uint256 outputAmount, uint256 goodUntil, address destinationAddress, Signature calldata theSignature, bytes calldata auxiliaryData) external;
}
pragma solidity 0.8.17;
library RouterErrors {
error ReturnAmountIsNotEnough();
error InvalidMsgValue();
error ERC20TransferFailed();
}
pragma solidity ^0.8.0;
abstract contract EthReceiver {
error EthDepositRejected();
receive() external payable {
_receive();
}
function _receive() internal virtual {
if (msg.sender == tx.origin) revert EthDepositRejected();
}
}
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);
}
pragma solidity ^0.8.0;
interface IDaiLikePermit {
function permit(address holder, address spender, uint256 nonce, uint256 expiry, bool allowed, uint8 v, bytes32 r, bytes32 s) external;
}
pragma solidity ^0.8.0;
library RevertReasonForwarder {
function reRevert() internal pure {
assembly {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
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);
}
pragma solidity ^0.8.0;
library SafeERC20 {
error SafeTransferFailed();
error SafeTransferFromFailed();
error ForceApproveFailed();
error SafeIncreaseAllowanceFailed();
error SafeDecreaseAllowanceFailed();
error SafePermitBadLength();
function safeTransferFrom(IERC20 token, address from, address to, uint256 amount) internal {
bytes4 selector = token.transferFrom.selector;
bool success;
assembly {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), from)
mstore(add(data, 0x24), to)
mstore(add(data, 0x44), amount)
success := call(gas(), token, 0, data, 100, 0x0, 0x20)
if success {
switch returndatasize()
case 0 { success := gt(extcodesize(token), 0) }
default { success := and(gt(returndatasize(), 31), eq(mload(0), 1)) }
}
}
if (!success) revert SafeTransferFromFailed();
}
function safeTransfer(IERC20 token, address to, uint256 value) internal {
if (!_makeCall(token, token.transfer.selector, to, value)) {
revert SafeTransferFailed();
}
}
function forceApprove(IERC20 token, address spender, uint256 value) internal {
if (!_makeCall(token, token.approve.selector, spender, value)) {
if (!_makeCall(token, token.approve.selector, spender, 0) ||
!_makeCall(token, token.approve.selector, spender, value))
{
revert ForceApproveFailed();
}
}
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 allowance = token.allowance(address(this), spender);
if (value > type(uint256).max - allowance) revert SafeIncreaseAllowanceFailed();
forceApprove(token, spender, allowance + value);
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 allowance = token.allowance(address(this), spender);
if (value > allowance) revert SafeDecreaseAllowanceFailed();
forceApprove(token, spender, allowance - value);
}
function safePermit(IERC20 token, bytes calldata permit) internal {
bool success;
if (permit.length == 32 * 7) {
success = _makeCalldataCall(token, IERC20Permit.permit.selector, permit);
} else if (permit.length == 32 * 8) {
success = _makeCalldataCall(token, IDaiLikePermit.permit.selector, permit);
} else {
revert SafePermitBadLength();
}
if (!success) RevertReasonForwarder.reRevert();
}
function _makeCall(IERC20 token, bytes4 selector, address to, uint256 amount) private returns(bool success) {
assembly {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), to)
mstore(add(data, 0x24), amount)
success := call(gas(), token, 0, data, 0x44, 0x0, 0x20)
if success {
switch returndatasize()
case 0 { success := gt(extcodesize(token), 0) }
default { success := and(gt(returndatasize(), 31), eq(mload(0), 1)) }
}
}
}
function _makeCalldataCall(IERC20 token, bytes4 selector, bytes calldata args) private returns(bool success) {
assembly {
let len := add(4, args.length)
let data := mload(0x40)
mstore(data, selector)
calldatacopy(add(data, 0x04), args.offset, args.length)
success := call(gas(), token, 0, data, len, 0x0, 0x20)
if success {
switch returndatasize()
case 0 { success := gt(extcodesize(token), 0) }
default { success := and(gt(returndatasize(), 31), eq(mload(0), 1)) }
}
}
}
}
pragma solidity ^0.8.0;
interface IWETH is IERC20 {
function deposit() external payable;
function withdraw(uint256 amount) external;
}
pragma solidity 0.8.17;
contract ClipperRouter is EthReceiver {
using SafeERC20 for IERC20;
uint256 private constant _SIGNATURE_S_MASK = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
uint256 private constant _SIGNATURE_V_SHIFT = 255;
bytes6 private constant _INCH_TAG_WITH_LENGTH_PREFIX = "\x051INCH";
IERC20 private constant _ETH = IERC20(address(0));
IWETH private immutable _WETH;
constructor(IWETH weth) {
_WETH = weth;
}
function clipperSwapToWithPermit(
IClipperExchangeInterface clipperExchange,
address payable recipient,
IERC20 srcToken,
IERC20 dstToken,
uint256 inputAmount,
uint256 outputAmount,
uint256 goodUntil,
bytes32 r,
bytes32 vs,
bytes calldata permit
) external returns(uint256 returnAmount) {
srcToken.safePermit(permit);
return clipperSwapTo(clipperExchange, recipient, srcToken, dstToken, inputAmount, outputAmount, goodUntil, r, vs);
}
function clipperSwap(
IClipperExchangeInterface clipperExchange,
IERC20 srcToken,
IERC20 dstToken,
uint256 inputAmount,
uint256 outputAmount,
uint256 goodUntil,
bytes32 r,
bytes32 vs
) external payable returns(uint256 returnAmount) {
return clipperSwapTo(clipperExchange, payable(msg.sender), srcToken, dstToken, inputAmount, outputAmount, goodUntil, r, vs);
}
function clipperSwapTo(
IClipperExchangeInterface clipperExchange,
address payable recipient,
IERC20 srcToken,
IERC20 dstToken,
uint256 inputAmount,
uint256 outputAmount,
uint256 goodUntil,
bytes32 r,
bytes32 vs
) public payable returns(uint256 returnAmount) {
bool srcETH = srcToken == _ETH;
if (srcETH) {
if (msg.value != inputAmount) revert RouterErrors.InvalidMsgValue();
} else if (srcToken == _WETH) {
srcETH = true;
if (msg.value != 0) revert RouterErrors.InvalidMsgValue();
address weth = address(_WETH);
bytes4 transferFromSelector = _WETH.transferFrom.selector;
bytes4 withdrawSelector = _WETH.withdraw.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, transferFromSelector)
mstore(add(ptr, 0x04), caller())
mstore(add(ptr, 0x24), address())
mstore(add(ptr, 0x44), inputAmount)
if iszero(call(gas(), weth, 0, ptr, 0x64, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
mstore(ptr, withdrawSelector)
mstore(add(ptr, 0x04), inputAmount)
if iszero(call(gas(), weth, 0, ptr, 0x24, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
} else {
if (msg.value != 0) revert RouterErrors.InvalidMsgValue();
srcToken.safeTransferFrom(msg.sender, address(clipperExchange), inputAmount);
}
if (srcETH) {
address clipper = address(clipperExchange);
bytes4 selector = clipperExchange.sellEthForToken.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), dstToken)
mstore(add(ptr, 0x24), inputAmount)
mstore(add(ptr, 0x44), outputAmount)
mstore(add(ptr, 0x64), goodUntil)
mstore(add(ptr, 0x84), recipient)
mstore(add(ptr, 0xa4), add(27, shr(_SIGNATURE_V_SHIFT, vs)))
mstore(add(ptr, 0xc4), r)
mstore(add(ptr, 0xe4), and(vs, _SIGNATURE_S_MASK))
mstore(add(ptr, 0x104), 0x120)
mstore(add(ptr, 0x143), _INCH_TAG_WITH_LENGTH_PREFIX)
if iszero(call(gas(), clipper, inputAmount, ptr, 0x149, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
} else if (dstToken == _ETH || dstToken == _WETH) {
address clipper = address(clipperExchange);
bytes4 selector = clipperExchange.sellTokenForEth.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), srcToken)
mstore(add(ptr, 0x24), inputAmount)
mstore(add(ptr, 0x44), outputAmount)
mstore(add(ptr, 0x64), goodUntil)
switch iszero(dstToken)
case 1 {
mstore(add(ptr, 0x84), recipient)
}
default {
mstore(add(ptr, 0x84), address())
}
mstore(add(ptr, 0xa4), add(27, shr(_SIGNATURE_V_SHIFT, vs)))
mstore(add(ptr, 0xc4), r)
mstore(add(ptr, 0xe4), and(vs, _SIGNATURE_S_MASK))
mstore(add(ptr, 0x104), 0x120)
mstore(add(ptr, 0x143), _INCH_TAG_WITH_LENGTH_PREFIX)
if iszero(call(gas(), clipper, 0, ptr, 0x149, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
if (dstToken == _WETH) {
address weth = address(_WETH);
bytes4 depositSelector = _WETH.deposit.selector;
bytes4 transferSelector = _WETH.transfer.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, depositSelector)
if iszero(call(gas(), weth, outputAmount, ptr, 0x04, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
mstore(ptr, transferSelector)
mstore(add(ptr, 0x04), recipient)
mstore(add(ptr, 0x24), outputAmount)
if iszero(call(gas(), weth, 0, ptr, 0x44, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
} else {
address clipper = address(clipperExchange);
bytes4 selector = clipperExchange.swap.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), srcToken)
mstore(add(ptr, 0x24), dstToken)
mstore(add(ptr, 0x44), inputAmount)
mstore(add(ptr, 0x64), outputAmount)
mstore(add(ptr, 0x84), goodUntil)
mstore(add(ptr, 0xa4), recipient)
mstore(add(ptr, 0xc4), add(27, shr(_SIGNATURE_V_SHIFT, vs)))
mstore(add(ptr, 0xe4), r)
mstore(add(ptr, 0x104), and(vs, _SIGNATURE_S_MASK))
mstore(add(ptr, 0x124), 0x140)
mstore(add(ptr, 0x163), _INCH_TAG_WITH_LENGTH_PREFIX)
if iszero(call(gas(), clipper, 0, ptr, 0x169, 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
return outputAmount;
}
}
pragma solidity 0.8.17;
interface IAggregationExecutor {
function execute(address msgSender) external payable;
}
pragma solidity ^0.8.0;
interface IERC20MetadataUppercase {
function NAME() external view returns (string memory);
function SYMBOL() external view returns (string memory);
}
pragma solidity ^0.8.0;
library StringUtil {
function toHex(uint256 value) internal pure returns (string memory) {
return toHex(abi.encodePacked(value));
}
function toHex(address value) internal pure returns (string memory) {
return toHex(abi.encodePacked(value));
}
function toHex(bytes memory data) internal pure returns (string memory result) {
assembly {
function _toHex16(input) -> output {
output := or(
and(input, 0xFFFFFFFFFFFFFFFF000000000000000000000000000000000000000000000000),
shr(64, and(input, 0x0000000000000000FFFFFFFFFFFFFFFF00000000000000000000000000000000))
)
output := or(
and(output, 0xFFFFFFFF000000000000000000000000FFFFFFFF000000000000000000000000),
shr(32, and(output, 0x00000000FFFFFFFF000000000000000000000000FFFFFFFF0000000000000000))
)
output := or(
and(output, 0xFFFF000000000000FFFF000000000000FFFF000000000000FFFF000000000000),
shr(16, and(output, 0x0000FFFF000000000000FFFF000000000000FFFF000000000000FFFF00000000))
)
output := or(
and(output, 0xFF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000),
shr(8, and(output, 0x00FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF0000))
)
output := or(
shr(4, and(output, 0xF000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000)),
shr(8, and(output, 0x0F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F00))
)
output := add(
add(0x3030303030303030303030303030303030303030303030303030303030303030, output),
mul(
and(
shr(4, add(output, 0x0606060606060606060606060606060606060606060606060606060606060606)),
0x0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F
),
7
)
)
}
result := mload(0x40)
let length := mload(data)
let resultLength := shl(1, length)
let toPtr := add(result, 0x22)
mstore(0x40, add(toPtr, resultLength))
mstore(add(result, 2), 0x3078)
mstore(result, add(resultLength, 2))
for {
let fromPtr := add(data, 0x20)
let endPtr := add(fromPtr, length)
} lt(fromPtr, endPtr) {
fromPtr := add(fromPtr, 0x20)
} {
let rawData := mload(fromPtr)
let hexData := _toHex16(rawData)
mstore(toPtr, hexData)
toPtr := add(toPtr, 0x20)
hexData := _toHex16(shl(128, rawData))
mstore(toPtr, hexData)
toPtr := add(toPtr, 0x20)
}
}
}
}
pragma solidity ^0.8.0;
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
pragma solidity ^0.8.0;
library UniERC20 {
using SafeERC20 for IERC20;
error InsufficientBalance();
error ApproveCalledOnETH();
error NotEnoughValue();
error FromIsNotSender();
error ToIsNotThis();
error ETHTransferFailed();
uint256 private constant _RAW_CALL_GAS_LIMIT = 5000;
IERC20 private constant _ETH_ADDRESS = IERC20(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);
IERC20 private constant _ZERO_ADDRESS = IERC20(address(0));
function isETH(IERC20 token) internal pure returns (bool) {
return (token == _ZERO_ADDRESS || token == _ETH_ADDRESS);
}
function uniBalanceOf(IERC20 token, address account) internal view returns (uint256) {
if (isETH(token)) {
return account.balance;
} else {
return token.balanceOf(account);
}
}
function uniTransfer(IERC20 token, address payable to, uint256 amount) internal {
if (amount > 0) {
if (isETH(token)) {
if (address(this).balance < amount) revert InsufficientBalance();
(bool success, ) = to.call{value: amount, gas: _RAW_CALL_GAS_LIMIT}("");
if (!success) revert ETHTransferFailed();
} else {
token.safeTransfer(to, amount);
}
}
}
function uniTransferFrom(IERC20 token, address payable from, address to, uint256 amount) internal {
if (amount > 0) {
if (isETH(token)) {
if (msg.value < amount) revert NotEnoughValue();
if (from != msg.sender) revert FromIsNotSender();
if (to != address(this)) revert ToIsNotThis();
if (msg.value > amount) {
unchecked {
(bool success, ) = from.call{value: msg.value - amount, gas: _RAW_CALL_GAS_LIMIT}("");
if (!success) revert ETHTransferFailed();
}
}
} else {
token.safeTransferFrom(from, to, amount);
}
}
}
function uniSymbol(IERC20 token) internal view returns(string memory) {
return _uniDecode(token, IERC20Metadata.symbol.selector, IERC20MetadataUppercase.SYMBOL.selector);
}
function uniName(IERC20 token) internal view returns(string memory) {
return _uniDecode(token, IERC20Metadata.name.selector, IERC20MetadataUppercase.NAME.selector);
}
function uniApprove(IERC20 token, address to, uint256 amount) internal {
if (isETH(token)) revert ApproveCalledOnETH();
token.forceApprove(to, amount);
}
function _uniDecode(IERC20 token, bytes4 lowerCaseSelector, bytes4 upperCaseSelector) private view returns(string memory result) {
if (isETH(token)) {
return "ETH";
}
(bool success, bytes memory data) = address(token).staticcall{ gas: 20000 }(
abi.encodeWithSelector(lowerCaseSelector)
);
if (!success) {
(success, data) = address(token).staticcall{ gas: 20000 }(
abi.encodeWithSelector(upperCaseSelector)
);
}
if (success && data.length >= 0x40) {
(uint256 offset, uint256 len) = abi.decode(data, (uint256, uint256));
if (offset == 0x20 && len > 0 && data.length == 0x40 + len) {
assembly {
result := add(data, 0x20)
}
return result;
}
}
if (success && data.length == 32) {
uint256 len = 0;
while (len < data.length && data[len] >= 0x20 && data[len] <= 0x7E) {
unchecked {
len++;
}
}
if (len > 0) {
assembly {
mstore(data, len)
}
return string(data);
}
}
return StringUtil.toHex(address(token));
}
}
pragma solidity 0.8.17;
contract GenericRouter is EthReceiver {
using UniERC20 for IERC20;
using SafeERC20 for IERC20;
error ZeroMinReturn();
error ZeroReturnAmount();
uint256 private constant _PARTIAL_FILL = 1 << 0;
uint256 private constant _REQUIRES_EXTRA_ETH = 1 << 1;
struct SwapDescription {
IERC20 srcToken;
IERC20 dstToken;
address payable srcReceiver;
address payable dstReceiver;
uint256 amount;
uint256 minReturnAmount;
uint256 flags;
}
function swap(
IAggregationExecutor executor,
SwapDescription calldata desc,
bytes calldata permit,
bytes calldata data
)
external
payable
returns (
uint256 returnAmount,
uint256 spentAmount
)
{
if (desc.minReturnAmount == 0) revert ZeroMinReturn();
IERC20 srcToken = desc.srcToken;
IERC20 dstToken = desc.dstToken;
bool srcETH = srcToken.isETH();
if (desc.flags & _REQUIRES_EXTRA_ETH != 0) {
if (msg.value <= (srcETH ? desc.amount : 0)) revert RouterErrors.InvalidMsgValue();
} else {
if (msg.value != (srcETH ? desc.amount : 0)) revert RouterErrors.InvalidMsgValue();
}
if (!srcETH) {
if (permit.length > 0) {
srcToken.safePermit(permit);
}
srcToken.safeTransferFrom(msg.sender, desc.srcReceiver, desc.amount);
}
_execute(executor, msg.sender, desc.amount, data);
spentAmount = desc.amount;
returnAmount = dstToken.uniBalanceOf(address(this));
if (returnAmount == 0) revert ZeroReturnAmount();
unchecked { returnAmount--; }
if (desc.flags & _PARTIAL_FILL != 0) {
uint256 unspentAmount = srcToken.uniBalanceOf(address(this));
if (unspentAmount > 1) {
unchecked { unspentAmount--; }
spentAmount -= unspentAmount;
srcToken.uniTransfer(payable(msg.sender), unspentAmount);
}
if (returnAmount * desc.amount < desc.minReturnAmount * spentAmount) revert RouterErrors.ReturnAmountIsNotEnough();
} else {
if (returnAmount < desc.minReturnAmount) revert RouterErrors.ReturnAmountIsNotEnough();
}
address payable dstReceiver = (desc.dstReceiver == address(0)) ? payable(msg.sender) : desc.dstReceiver;
dstToken.uniTransfer(dstReceiver, returnAmount);
}
function _execute(
IAggregationExecutor executor,
address srcTokenOwner,
uint256 inputAmount,
bytes calldata data
) private {
bytes4 executeSelector = executor.execute.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, executeSelector)
mstore(add(ptr, 0x04), srcTokenOwner)
calldatacopy(add(ptr, 0x24), data.offset, data.length)
mstore(add(add(ptr, 0x24), data.length), inputAmount)
if iszero(call(gas(), executor, callvalue(), ptr, add(0x44, data.length), 0, 0)) {
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
}
pragma solidity 0.8.17;
contract UnoswapRouter is EthReceiver {
using SafeERC20 for IERC20;
error ReservesCallFailed();
error SwapAmountTooLarge();
bytes4 private constant _TRANSFER_FROM_CALL_SELECTOR = 0x23b872dd;
bytes4 private constant _WETH_DEPOSIT_CALL_SELECTOR = 0xd0e30db0;
bytes4 private constant _WETH_WITHDRAW_CALL_SELECTOR = 0x2e1a7d4d;
bytes4 private constant _ERC20_TRANSFER_CALL_SELECTOR = 0xa9059cbb;
uint256 private constant _ADDRESS_MASK = 0x000000000000000000000000ffffffffffffffffffffffffffffffffffffffff;
uint256 private constant _REVERSE_MASK = 0x8000000000000000000000000000000000000000000000000000000000000000;
uint256 private constant _WETH_MASK = 0x4000000000000000000000000000000000000000000000000000000000000000;
uint256 private constant _NUMERATOR_MASK = 0x0000000000000000ffffffff0000000000000000000000000000000000000000;
address private constant _WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
bytes4 private constant _UNISWAP_PAIR_RESERVES_CALL_SELECTOR = 0x0902f1ac;
bytes4 private constant _UNISWAP_PAIR_SWAP_CALL_SELECTOR = 0x022c0d9f;
uint256 private constant _DENOMINATOR = 1e9;
uint256 private constant _NUMERATOR_OFFSET = 160;
uint256 private constant _MAX_SWAP_AMOUNT = (1 << 112) - 1;
function unoswapToWithPermit(
address payable recipient,
IERC20 srcToken,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools,
bytes calldata permit
) external returns(uint256 returnAmount) {
srcToken.safePermit(permit);
return _unoswap(recipient, srcToken, amount, minReturn, pools);
}
function unoswapTo(
address payable recipient,
IERC20 srcToken,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) external payable returns(uint256 returnAmount) {
return _unoswap(recipient, srcToken, amount, minReturn, pools);
}
function unoswap(
IERC20 srcToken,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) external payable returns(uint256 returnAmount) {
return _unoswap(payable(msg.sender), srcToken, amount, minReturn, pools);
}
function _unoswap(
address payable recipient,
IERC20 srcToken,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) private returns(uint256 returnAmount) {
assembly {
function reRevert() {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
function validateERC20Transfer(status) {
if iszero(status) {
reRevert()
}
let success := or(
iszero(returndatasize()),
and(gt(returndatasize(), 31), eq(mload(0), 1))
)
if iszero(success) {
mstore(0, 0xf27f64e400000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
}
function swap(emptyPtr, swapAmount, pair, reversed, numerator, to) -> ret {
mstore(emptyPtr, _UNISWAP_PAIR_RESERVES_CALL_SELECTOR)
if iszero(staticcall(gas(), pair, emptyPtr, 0x4, emptyPtr, 0x40)) {
reRevert()
}
if iszero(eq(returndatasize(), 0x60)) {
mstore(0, 0x85cd58dc00000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
let reserve0 := mload(emptyPtr)
let reserve1 := mload(add(emptyPtr, 0x20))
if reversed {
let tmp := reserve0
reserve0 := reserve1
reserve1 := tmp
}
ret := mul(swapAmount, numerator)
ret := div(mul(ret, reserve1), add(ret, mul(reserve0, _DENOMINATOR)))
mstore(emptyPtr, _UNISWAP_PAIR_SWAP_CALL_SELECTOR)
reversed := iszero(reversed)
mstore(add(emptyPtr, 0x04), mul(ret, iszero(reversed)))
mstore(add(emptyPtr, 0x24), mul(ret, reversed))
mstore(add(emptyPtr, 0x44), to)
mstore(add(emptyPtr, 0x64), 0x80)
mstore(add(emptyPtr, 0x84), 0)
if iszero(call(gas(), pair, 0, emptyPtr, 0xa4, 0, 0)) {
reRevert()
}
}
if gt(amount, _MAX_SWAP_AMOUNT) {
mstore(0, 0xcf0b4d3a00000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
let emptyPtr := mload(0x40)
mstore(0x40, add(emptyPtr, 0xc0))
let poolsEndOffset := add(pools.offset, shl(5, pools.length))
let rawPair := calldataload(pools.offset)
switch srcToken
case 0 {
if iszero(eq(amount, callvalue())) {
mstore(0, 0x1841b4e100000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
mstore(emptyPtr, _WETH_DEPOSIT_CALL_SELECTOR)
if iszero(call(gas(), _WETH, amount, emptyPtr, 0x4, 0, 0)) {
reRevert()
}
mstore(emptyPtr, _ERC20_TRANSFER_CALL_SELECTOR)
mstore(add(emptyPtr, 0x4), and(rawPair, _ADDRESS_MASK))
mstore(add(emptyPtr, 0x24), amount)
if iszero(call(gas(), _WETH, 0, emptyPtr, 0x44, 0, 0)) {
reRevert()
}
}
default {
if callvalue() {
mstore(0, 0x1841b4e100000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
mstore(emptyPtr, _TRANSFER_FROM_CALL_SELECTOR)
mstore(add(emptyPtr, 0x4), caller())
mstore(add(emptyPtr, 0x24), and(rawPair, _ADDRESS_MASK))
mstore(add(emptyPtr, 0x44), amount)
validateERC20Transfer(
call(gas(), srcToken, 0, emptyPtr, 0x64, 0, 0x20)
)
}
returnAmount := amount
for {let i := add(pools.offset, 0x20)} lt(i, poolsEndOffset) {i := add(i, 0x20)} {
let nextRawPair := calldataload(i)
returnAmount := swap(
emptyPtr,
returnAmount,
and(rawPair, _ADDRESS_MASK),
and(rawPair, _REVERSE_MASK),
shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
and(nextRawPair, _ADDRESS_MASK)
)
rawPair := nextRawPair
}
switch and(rawPair, _WETH_MASK)
case 0 {
returnAmount := swap(
emptyPtr,
returnAmount,
and(rawPair, _ADDRESS_MASK),
and(rawPair, _REVERSE_MASK),
shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
recipient
)
}
default {
returnAmount := swap(
emptyPtr,
returnAmount,
and(rawPair, _ADDRESS_MASK),
and(rawPair, _REVERSE_MASK),
shr(_NUMERATOR_OFFSET, and(rawPair, _NUMERATOR_MASK)),
address()
)
mstore(emptyPtr, _WETH_WITHDRAW_CALL_SELECTOR)
mstore(add(emptyPtr, 0x04), returnAmount)
if iszero(call(gas(), _WETH, 0, emptyPtr, 0x24, 0, 0)) {
reRevert()
}
if iszero(call(gas(), recipient, returnAmount, 0, 0, 0, 0)) {
reRevert()
}
}
}
if (returnAmount < minReturn) revert RouterErrors.ReturnAmountIsNotEnough();
}
}
pragma solidity 0.8.17;
interface IUniswapV3Pool {
function swap(
address recipient,
bool zeroForOne,
int256 amountSpecified,
uint160 sqrtPriceLimitX96,
bytes calldata data
) external returns (int256 amount0, int256 amount1);
function token0() external view returns (address);
function token1() external view returns (address);
function fee() external view returns (uint24);
}
pragma solidity 0.8.17;
interface IUniswapV3SwapCallback {
function uniswapV3SwapCallback(
int256 amount0Delta,
int256 amount1Delta,
bytes calldata data
) external;
}
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 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
) internal 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);
}
}
}
}
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) {
require(value >= type(int248).min && value <= type(int248).max, "SafeCast: value doesn't fit in 248 bits");
return int248(value);
}
function toInt240(int256 value) internal pure returns (int240) {
require(value >= type(int240).min && value <= type(int240).max, "SafeCast: value doesn't fit in 240 bits");
return int240(value);
}
function toInt232(int256 value) internal pure returns (int232) {
require(value >= type(int232).min && value <= type(int232).max, "SafeCast: value doesn't fit in 232 bits");
return int232(value);
}
function toInt224(int256 value) internal pure returns (int224) {
require(value >= type(int224).min && value <= type(int224).max, "SafeCast: value doesn't fit in 224 bits");
return int224(value);
}
function toInt216(int256 value) internal pure returns (int216) {
require(value >= type(int216).min && value <= type(int216).max, "SafeCast: value doesn't fit in 216 bits");
return int216(value);
}
function toInt208(int256 value) internal pure returns (int208) {
require(value >= type(int208).min && value <= type(int208).max, "SafeCast: value doesn't fit in 208 bits");
return int208(value);
}
function toInt200(int256 value) internal pure returns (int200) {
require(value >= type(int200).min && value <= type(int200).max, "SafeCast: value doesn't fit in 200 bits");
return int200(value);
}
function toInt192(int256 value) internal pure returns (int192) {
require(value >= type(int192).min && value <= type(int192).max, "SafeCast: value doesn't fit in 192 bits");
return int192(value);
}
function toInt184(int256 value) internal pure returns (int184) {
require(value >= type(int184).min && value <= type(int184).max, "SafeCast: value doesn't fit in 184 bits");
return int184(value);
}
function toInt176(int256 value) internal pure returns (int176) {
require(value >= type(int176).min && value <= type(int176).max, "SafeCast: value doesn't fit in 176 bits");
return int176(value);
}
function toInt168(int256 value) internal pure returns (int168) {
require(value >= type(int168).min && value <= type(int168).max, "SafeCast: value doesn't fit in 168 bits");
return int168(value);
}
function toInt160(int256 value) internal pure returns (int160) {
require(value >= type(int160).min && value <= type(int160).max, "SafeCast: value doesn't fit in 160 bits");
return int160(value);
}
function toInt152(int256 value) internal pure returns (int152) {
require(value >= type(int152).min && value <= type(int152).max, "SafeCast: value doesn't fit in 152 bits");
return int152(value);
}
function toInt144(int256 value) internal pure returns (int144) {
require(value >= type(int144).min && value <= type(int144).max, "SafeCast: value doesn't fit in 144 bits");
return int144(value);
}
function toInt136(int256 value) internal pure returns (int136) {
require(value >= type(int136).min && value <= type(int136).max, "SafeCast: value doesn't fit in 136 bits");
return int136(value);
}
function toInt128(int256 value) internal pure returns (int128) {
require(value >= type(int128).min && value <= type(int128).max, "SafeCast: value doesn't fit in 128 bits");
return int128(value);
}
function toInt120(int256 value) internal pure returns (int120) {
require(value >= type(int120).min && value <= type(int120).max, "SafeCast: value doesn't fit in 120 bits");
return int120(value);
}
function toInt112(int256 value) internal pure returns (int112) {
require(value >= type(int112).min && value <= type(int112).max, "SafeCast: value doesn't fit in 112 bits");
return int112(value);
}
function toInt104(int256 value) internal pure returns (int104) {
require(value >= type(int104).min && value <= type(int104).max, "SafeCast: value doesn't fit in 104 bits");
return int104(value);
}
function toInt96(int256 value) internal pure returns (int96) {
require(value >= type(int96).min && value <= type(int96).max, "SafeCast: value doesn't fit in 96 bits");
return int96(value);
}
function toInt88(int256 value) internal pure returns (int88) {
require(value >= type(int88).min && value <= type(int88).max, "SafeCast: value doesn't fit in 88 bits");
return int88(value);
}
function toInt80(int256 value) internal pure returns (int80) {
require(value >= type(int80).min && value <= type(int80).max, "SafeCast: value doesn't fit in 80 bits");
return int80(value);
}
function toInt72(int256 value) internal pure returns (int72) {
require(value >= type(int72).min && value <= type(int72).max, "SafeCast: value doesn't fit in 72 bits");
return int72(value);
}
function toInt64(int256 value) internal pure returns (int64) {
require(value >= type(int64).min && value <= type(int64).max, "SafeCast: value doesn't fit in 64 bits");
return int64(value);
}
function toInt56(int256 value) internal pure returns (int56) {
require(value >= type(int56).min && value <= type(int56).max, "SafeCast: value doesn't fit in 56 bits");
return int56(value);
}
function toInt48(int256 value) internal pure returns (int48) {
require(value >= type(int48).min && value <= type(int48).max, "SafeCast: value doesn't fit in 48 bits");
return int48(value);
}
function toInt40(int256 value) internal pure returns (int40) {
require(value >= type(int40).min && value <= type(int40).max, "SafeCast: value doesn't fit in 40 bits");
return int40(value);
}
function toInt32(int256 value) internal pure returns (int32) {
require(value >= type(int32).min && value <= type(int32).max, "SafeCast: value doesn't fit in 32 bits");
return int32(value);
}
function toInt24(int256 value) internal pure returns (int24) {
require(value >= type(int24).min && value <= type(int24).max, "SafeCast: value doesn't fit in 24 bits");
return int24(value);
}
function toInt16(int256 value) internal pure returns (int16) {
require(value >= type(int16).min && value <= type(int16).max, "SafeCast: value doesn't fit in 16 bits");
return int16(value);
}
function toInt8(int256 value) internal pure returns (int8) {
require(value >= type(int8).min && value <= type(int8).max, "SafeCast: value doesn't fit in 8 bits");
return int8(value);
}
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);
}
}
pragma solidity 0.8.17;
contract UnoswapV3Router is EthReceiver, IUniswapV3SwapCallback {
using Address for address payable;
using SafeERC20 for IERC20;
error EmptyPools();
error BadPool();
uint256 private constant _ONE_FOR_ZERO_MASK = 1 << 255;
uint256 private constant _WETH_UNWRAP_MASK = 1 << 253;
bytes32 private constant _POOL_INIT_CODE_HASH = 0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54;
bytes32 private constant _FF_FACTORY = 0xff1F98431c8aD98523631AE4a59f267346ea31F9840000000000000000000000;
bytes32 private constant _SELECTORS = 0x0dfe1681d21220a7ddca3f43a9059cbb23b872dd000000000000000000000000;
uint256 private constant _ADDRESS_MASK = 0x000000000000000000000000ffffffffffffffffffffffffffffffffffffffff;
uint160 private constant _MIN_SQRT_RATIO = 4295128739 + 1;
uint160 private constant _MAX_SQRT_RATIO = 1461446703485210103287273052203988822378723970342 - 1;
IWETH private immutable _WETH;
constructor(IWETH weth) {
_WETH = weth;
}
function uniswapV3SwapToWithPermit(
address payable recipient,
IERC20 srcToken,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools,
bytes calldata permit
) external returns(uint256 returnAmount) {
srcToken.safePermit(permit);
return _uniswapV3Swap(recipient, amount, minReturn, pools);
}
function uniswapV3Swap(
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) external payable returns(uint256 returnAmount) {
return _uniswapV3Swap(payable(msg.sender), amount, minReturn, pools);
}
function uniswapV3SwapTo(
address payable recipient,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) external payable returns(uint256 returnAmount) {
return _uniswapV3Swap(recipient, amount, minReturn, pools);
}
function _uniswapV3Swap(
address payable recipient,
uint256 amount,
uint256 minReturn,
uint256[] calldata pools
) private returns(uint256 returnAmount) {
unchecked {
uint256 len = pools.length;
if (len == 0) revert EmptyPools();
uint256 lastIndex = len - 1;
returnAmount = amount;
bool wrapWeth = msg.value > 0;
bool unwrapWeth = pools[lastIndex] & _WETH_UNWRAP_MASK > 0;
if (wrapWeth) {
if (msg.value != amount) revert RouterErrors.InvalidMsgValue();
_WETH.deposit{value: amount}();
}
if (len > 1) {
returnAmount = _makeSwap(address(this), wrapWeth ? address(this) : msg.sender, pools[0], returnAmount);
for (uint256 i = 1; i < lastIndex; i++) {
returnAmount = _makeSwap(address(this), address(this), pools[i], returnAmount);
}
returnAmount = _makeSwap(unwrapWeth ? address(this) : recipient, address(this), pools[lastIndex], returnAmount);
} else {
returnAmount = _makeSwap(unwrapWeth ? address(this) : recipient, wrapWeth ? address(this) : msg.sender, pools[0], returnAmount);
}
if (returnAmount < minReturn) revert RouterErrors.ReturnAmountIsNotEnough();
if (unwrapWeth) {
_WETH.withdraw(returnAmount);
recipient.sendValue(returnAmount);
}
}
}
function uniswapV3SwapCallback(
int256 amount0Delta,
int256 amount1Delta,
bytes calldata
) external override {
assembly {
function reRevert() {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
function validateERC20Transfer(status) {
if iszero(status) {
reRevert()
}
let success := or(
iszero(returndatasize()),
and(gt(returndatasize(), 31), eq(mload(0), 1))
)
if iszero(success) {
mstore(0, 0xf27f64e400000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
}
let emptyPtr := mload(0x40)
let resultPtr := add(emptyPtr, 0x15)
mstore(emptyPtr, _SELECTORS)
if iszero(staticcall(gas(), caller(), emptyPtr, 0x4, resultPtr, 0x20)) {
reRevert()
}
if iszero(staticcall(gas(), caller(), add(emptyPtr, 0x4), 0x4, add(resultPtr, 0x20), 0x20)) {
reRevert()
}
if iszero(staticcall(gas(), caller(), add(emptyPtr, 0x8), 0x4, add(resultPtr, 0x40), 0x20)) {
reRevert()
}
let token
let amount
switch sgt(amount0Delta, 0)
case 1 {
token := mload(resultPtr)
amount := amount0Delta
}
default {
token := mload(add(resultPtr, 0x20))
amount := amount1Delta
}
mstore(emptyPtr, _FF_FACTORY)
mstore(resultPtr, keccak256(resultPtr, 0x60))
mstore(add(resultPtr, 0x20), _POOL_INIT_CODE_HASH)
let pool := and(keccak256(emptyPtr, 0x55), _ADDRESS_MASK)
if xor(pool, caller()) {
mstore(0, 0xb2c0272200000000000000000000000000000000000000000000000000000000)
revert(0, 4)
}
let payer := calldataload(0x84)
mstore(emptyPtr, _SELECTORS)
switch eq(payer, address())
case 1 {
mstore(add(emptyPtr, 0x10), caller())
mstore(add(emptyPtr, 0x30), amount)
validateERC20Transfer(
call(gas(), token, 0, add(emptyPtr, 0x0c), 0x44, 0, 0x20)
)
}
default {
mstore(add(emptyPtr, 0x14), payer)
mstore(add(emptyPtr, 0x34), caller())
mstore(add(emptyPtr, 0x54), amount)
validateERC20Transfer(
call(gas(), token, 0, add(emptyPtr, 0x10), 0x64, 0, 0x20)
)
}
}
}
function _makeSwap(address recipient, address payer, uint256 pool, uint256 amount) private returns (uint256) {
bool zeroForOne = pool & _ONE_FOR_ZERO_MASK == 0;
if (zeroForOne) {
(, int256 amount1) = IUniswapV3Pool(address(uint160(pool))).swap(
recipient,
zeroForOne,
SafeCast.toInt256(amount),
_MIN_SQRT_RATIO,
abi.encode(payer)
);
return SafeCast.toUint256(-amount1);
} else {
(int256 amount0,) = IUniswapV3Pool(address(uint160(pool))).swap(
recipient,
zeroForOne,
SafeCast.toInt256(amount),
_MAX_SQRT_RATIO,
abi.encode(payer)
);
return SafeCast.toUint256(-amount0);
}
}
}
pragma solidity ^0.8.0;
abstract contract OnlyWethReceiver is EthReceiver {
address private immutable _WETH;
constructor(address weth) {
_WETH = address(weth);
}
function _receive() internal virtual override {
if (msg.sender != _WETH) revert EthDepositRejected();
}
}
pragma solidity ^0.8.0;
interface IERC1271 {
function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}
pragma solidity ^0.8.0;
library ECDSA {
uint256 private constant _S_BOUNDARY = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0 + 1;
uint256 private constant _COMPACT_S_MASK = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
uint256 private constant _COMPACT_V_SHIFT = 255;
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal view returns(address signer) {
assembly {
if lt(s, _S_BOUNDARY) {
let ptr := mload(0x40)
mstore(ptr, hash)
mstore(add(ptr, 0x20), v)
mstore(add(ptr, 0x40), r)
mstore(add(ptr, 0x60), s)
mstore(0, 0)
pop(staticcall(gas(), 0x1, ptr, 0x80, 0, 0x20))
signer := mload(0)
}
}
}
function recover(bytes32 hash, bytes32 r, bytes32 vs) internal view returns(address signer) {
assembly {
let s := and(vs, _COMPACT_S_MASK)
if lt(s, _S_BOUNDARY) {
let ptr := mload(0x40)
mstore(ptr, hash)
mstore(add(ptr, 0x20), add(27, shr(_COMPACT_V_SHIFT, vs)))
mstore(add(ptr, 0x40), r)
mstore(add(ptr, 0x60), s)
mstore(0, 0)
pop(staticcall(gas(), 0x1, ptr, 0x80, 0, 0x20))
signer := mload(0)
}
}
}
function recover(bytes32 hash, bytes calldata signature) internal view returns(address signer) {
assembly {
let ptr := mload(0x40)
switch signature.length
case 65 {
mstore(add(ptr, 0x20), byte(0, calldataload(add(signature.offset, 0x40))))
calldatacopy(add(ptr, 0x40), signature.offset, 0x40)
}
case 64 {
let vs := calldataload(add(signature.offset, 0x20))
mstore(add(ptr, 0x20), add(27, shr(_COMPACT_V_SHIFT, vs)))
calldatacopy(add(ptr, 0x40), signature.offset, 0x20)
mstore(add(ptr, 0x60), and(vs, _COMPACT_S_MASK))
}
default {
ptr := 0
}
if ptr {
if lt(mload(add(ptr, 0x60)), _S_BOUNDARY) {
mstore(ptr, hash)
mstore(0, 0)
pop(staticcall(gas(), 0x1, ptr, 0x80, 0, 0x20))
signer := mload(0)
}
}
}
}
function recoverOrIsValidSignature(address signer, bytes32 hash, bytes calldata signature) internal view returns(bool success) {
if (signer == address(0)) return false;
if ((signature.length == 64 || signature.length == 65) && recover(hash, signature) == signer) {
return true;
}
return isValidSignature(signer, hash, signature);
}
function recoverOrIsValidSignature(address signer, bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal view returns(bool success) {
if (signer == address(0)) return false;
if (recover(hash, v, r, s) == signer) {
return true;
}
return isValidSignature(signer, hash, v, r, s);
}
function recoverOrIsValidSignature(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns(bool success) {
if (signer == address(0)) return false;
if (recover(hash, r, vs) == signer) {
return true;
}
return isValidSignature(signer, hash, r, vs);
}
function recoverOrIsValidSignature65(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns(bool success) {
if (signer == address(0)) return false;
if (recover(hash, r, vs) == signer) {
return true;
}
return isValidSignature65(signer, hash, r, vs);
}
function isValidSignature(address signer, bytes32 hash, bytes calldata signature) internal view returns(bool success) {
bytes4 selector = IERC1271.isValidSignature.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), hash)
mstore(add(ptr, 0x24), 0x40)
mstore(add(ptr, 0x44), signature.length)
calldatacopy(add(ptr, 0x64), signature.offset, signature.length)
if staticcall(gas(), signer, ptr, add(0x64, signature.length), 0, 0x20) {
success := and(eq(selector, mload(0)), eq(returndatasize(), 0x20))
}
}
}
function isValidSignature(address signer, bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal view returns(bool success) {
bytes4 selector = IERC1271.isValidSignature.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), hash)
mstore(add(ptr, 0x24), 0x40)
mstore(add(ptr, 0x44), 65)
mstore(add(ptr, 0x64), r)
mstore(add(ptr, 0x84), s)
mstore8(add(ptr, 0xa4), v)
if staticcall(gas(), signer, ptr, 0xa5, 0, 0x20) {
success := and(eq(selector, mload(0)), eq(returndatasize(), 0x20))
}
}
}
function isValidSignature(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns(bool success) {
bytes4 selector = IERC1271.isValidSignature.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), hash)
mstore(add(ptr, 0x24), 0x40)
mstore(add(ptr, 0x44), 64)
mstore(add(ptr, 0x64), r)
mstore(add(ptr, 0x84), vs)
if staticcall(gas(), signer, ptr, 0xa4, 0, 0x20) {
success := and(eq(selector, mload(0)), eq(returndatasize(), 0x20))
}
}
}
function isValidSignature65(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns(bool success) {
bytes4 selector = IERC1271.isValidSignature.selector;
assembly {
let ptr := mload(0x40)
mstore(ptr, selector)
mstore(add(ptr, 0x04), hash)
mstore(add(ptr, 0x24), 0x40)
mstore(add(ptr, 0x44), 65)
mstore(add(ptr, 0x64), r)
mstore(add(ptr, 0x84), and(vs, _COMPACT_S_MASK))
mstore8(add(ptr, 0xa4), add(27, shr(_COMPACT_V_SHIFT, vs)))
if staticcall(gas(), signer, ptr, 0xa5, 0, 0x20) {
success := and(eq(selector, mload(0)), eq(returndatasize(), 0x20))
}
}
}
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 res) {
assembly {
mstore(0, 0x19457468657265756d205369676e6564204d6573736167653a0a333200000000)
mstore(28, hash)
res := keccak256(0, 60)
}
}
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 res) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x1901000000000000000000000000000000000000000000000000000000000000)
mstore(add(ptr, 0x02), domainSeparator)
mstore(add(ptr, 0x22), structHash)
res := keccak256(ptr, 66)
}
}
}
pragma solidity 0.8.17;
library OrderRFQLib {
struct OrderRFQ {
uint256 info;
address makerAsset;
address takerAsset;
address maker;
address allowedSender;
uint256 makingAmount;
uint256 takingAmount;
}
bytes32 constant internal _LIMIT_ORDER_RFQ_TYPEHASH = keccak256(
"OrderRFQ("
"uint256 info,"
"address makerAsset,"
"address takerAsset,"
"address maker,"
"address allowedSender,"
"uint256 makingAmount,"
"uint256 takingAmount"
")"
);
function hash(OrderRFQ memory order, bytes32 domainSeparator) internal pure returns(bytes32 result) {
bytes32 typehash = _LIMIT_ORDER_RFQ_TYPEHASH;
bytes32 orderHash;
assembly {
let ptr := sub(order, 0x20)
let tmp := mload(ptr)
mstore(ptr, typehash)
orderHash := keccak256(ptr, 0x100)
mstore(ptr, tmp)
}
return ECDSA.toTypedDataHash(domainSeparator, orderHash);
}
}
pragma solidity ^0.8.0;
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
function toString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
pragma solidity ^0.8.0;
abstract contract EIP712 {
bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
uint256 private immutable _CACHED_CHAIN_ID;
address private immutable _CACHED_THIS;
bytes32 private immutable _HASHED_NAME;
bytes32 private immutable _HASHED_VERSION;
bytes32 private immutable _TYPE_HASH;
constructor(string memory name, string memory version) {
bytes32 hashedName = keccak256(bytes(name));
bytes32 hashedVersion = keccak256(bytes(version));
bytes32 typeHash = keccak256(
"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
);
_HASHED_NAME = hashedName;
_HASHED_VERSION = hashedVersion;
_CACHED_CHAIN_ID = block.chainid;
_CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
_CACHED_THIS = address(this);
_TYPE_HASH = typeHash;
}
function _domainSeparatorV4() internal view returns (bytes32) {
if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) {
return _CACHED_DOMAIN_SEPARATOR;
} else {
return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
}
}
function _buildDomainSeparator(
bytes32 typeHash,
bytes32 nameHash,
bytes32 versionHash
) private view returns (bytes32) {
return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
}
function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
}
}
pragma solidity 0.8.17;
library Errors {
error InvalidMsgValue();
error ETHTransferFailed();
}
pragma solidity 0.8.17;
library AmountCalculator {
function getMakingAmount(uint256 orderMakerAmount, uint256 orderTakerAmount, uint256 swapTakerAmount) internal pure returns(uint256) {
return swapTakerAmount * orderMakerAmount / orderTakerAmount;
}
function getTakingAmount(uint256 orderMakerAmount, uint256 orderTakerAmount, uint256 swapMakerAmount) internal pure returns(uint256) {
return (swapMakerAmount * orderTakerAmount + orderMakerAmount - 1) / orderMakerAmount;
}
}
pragma solidity 0.8.17;
abstract contract OrderRFQMixin is EIP712, OnlyWethReceiver {
using SafeERC20 for IERC20;
using OrderRFQLib for OrderRFQLib.OrderRFQ;
error RFQZeroTargetIsForbidden();
error RFQPrivateOrder();
error RFQBadSignature();
error OrderExpired();
error MakingAmountExceeded();
error TakingAmountExceeded();
error RFQSwapWithZeroAmount();
error InvalidatedOrder();
event OrderFilledRFQ(
bytes32 orderHash,
uint256 makingAmount
);
uint256 private constant _RAW_CALL_GAS_LIMIT = 5000;
uint256 private constant _MAKER_AMOUNT_FLAG = 1 << 255;
uint256 private constant _SIGNER_SMART_CONTRACT_HINT = 1 << 254;
uint256 private constant _IS_VALID_SIGNATURE_65_BYTES = 1 << 253;
uint256 private constant _UNWRAP_WETH_FLAG = 1 << 252;
uint256 private constant _AMOUNT_MASK = ~(
_MAKER_AMOUNT_FLAG |
_SIGNER_SMART_CONTRACT_HINT |
_IS_VALID_SIGNATURE_65_BYTES |
_UNWRAP_WETH_FLAG
);
IWETH private immutable _WETH;
mapping(address => mapping(uint256 => uint256)) private _invalidator;
constructor(IWETH weth) OnlyWethReceiver(address(weth)) {
_WETH = weth;
}
function invalidatorForOrderRFQ(address maker, uint256 slot) external view returns(uint256 ) {
return _invalidator[maker][slot];
}
function cancelOrderRFQ(uint256 orderInfo) external {
_invalidateOrder(msg.sender, orderInfo, 0);
}
function cancelOrderRFQ(uint256 orderInfo, uint256 additionalMask) external {
_invalidateOrder(msg.sender, orderInfo, additionalMask);
}
function fillOrderRFQ(
OrderRFQLib.OrderRFQ memory order,
bytes calldata signature,
uint256 flagsAndAmount
) external payable returns(uint256 , uint256 , bytes32 ) {
return fillOrderRFQTo(order, signature, flagsAndAmount, msg.sender);
}
function fillOrderRFQCompact(
OrderRFQLib.OrderRFQ memory order,
bytes32 r,
bytes32 vs,
uint256 flagsAndAmount
) external payable returns(uint256 filledMakingAmount, uint256 filledTakingAmount, bytes32 orderHash) {
orderHash = order.hash(_domainSeparatorV4());
if (flagsAndAmount & _SIGNER_SMART_CONTRACT_HINT != 0) {
if (flagsAndAmount & _IS_VALID_SIGNATURE_65_BYTES != 0) {
if (!ECDSA.isValidSignature65(order.maker, orderHash, r, vs)) revert RFQBadSignature();
} else {
if (!ECDSA.isValidSignature(order.maker, orderHash, r, vs)) revert RFQBadSignature();
}
} else {
if(!ECDSA.recoverOrIsValidSignature(order.maker, orderHash, r, vs)) revert RFQBadSignature();
}
(filledMakingAmount, filledTakingAmount) = _fillOrderRFQTo(order, flagsAndAmount, msg.sender);
emit OrderFilledRFQ(orderHash, filledMakingAmount);
}
function fillOrderRFQToWithPermit(
OrderRFQLib.OrderRFQ memory order,
bytes calldata signature,
uint256 flagsAndAmount,
address target,
bytes calldata permit
) external returns(uint256 , uint256 , bytes32 ) {
IERC20(order.takerAsset).safePermit(permit);
return fillOrderRFQTo(order, signature, flagsAndAmount, target);
}
function fillOrderRFQTo(
OrderRFQLib.OrderRFQ memory order,
bytes calldata signature,
uint256 flagsAndAmount,
address target
) public payable returns(uint256 filledMakingAmount, uint256 filledTakingAmount, bytes32 orderHash) {
orderHash = order.hash(_domainSeparatorV4());
if (flagsAndAmount & _SIGNER_SMART_CONTRACT_HINT != 0) {
if (flagsAndAmount & _IS_VALID_SIGNATURE_65_BYTES != 0 && signature.length != 65) revert RFQBadSignature();
if (!ECDSA.isValidSignature(order.maker, orderHash, signature)) revert RFQBadSignature();
} else {
if(!ECDSA.recoverOrIsValidSignature(order.maker, orderHash, signature)) revert RFQBadSignature();
}
(filledMakingAmount, filledTakingAmount) = _fillOrderRFQTo(order, flagsAndAmount, target);
emit OrderFilledRFQ(orderHash, filledMakingAmount);
}
function _fillOrderRFQTo(
OrderRFQLib.OrderRFQ memory order,
uint256 flagsAndAmount,
address target
) private returns(uint256 makingAmount, uint256 takingAmount) {
if (target == address(0)) revert RFQZeroTargetIsForbidden();
address maker = order.maker;
if (order.allowedSender != address(0) && order.allowedSender != msg.sender) revert RFQPrivateOrder();
{
uint256 info = order.info;
uint256 expiration = uint128(info) >> 64;
if (expiration != 0 && block.timestamp > expiration) revert OrderExpired();
_invalidateOrder(maker, info, 0);
}
{
uint256 orderMakingAmount = order.makingAmount;
uint256 orderTakingAmount = order.takingAmount;
uint256 amount = flagsAndAmount & _AMOUNT_MASK;
if (amount == 0) {
makingAmount = orderMakingAmount;
takingAmount = orderTakingAmount;
}
else if (flagsAndAmount & _MAKER_AMOUNT_FLAG != 0) {
if (amount > orderMakingAmount) revert MakingAmountExceeded();
makingAmount = amount;
takingAmount = AmountCalculator.getTakingAmount(orderMakingAmount, orderTakingAmount, makingAmount);
}
else {
if (amount > orderTakingAmount) revert TakingAmountExceeded();
takingAmount = amount;
makingAmount = AmountCalculator.getMakingAmount(orderMakingAmount, orderTakingAmount, takingAmount);
}
}
if (makingAmount == 0 || takingAmount == 0) revert RFQSwapWithZeroAmount();
if (order.makerAsset == address(_WETH) && flagsAndAmount & _UNWRAP_WETH_FLAG != 0) {
_WETH.transferFrom(maker, address(this), makingAmount);
_WETH.withdraw(makingAmount);
(bool success, ) = target.call{value: makingAmount, gas: _RAW_CALL_GAS_LIMIT}("");
if (!success) revert Errors.ETHTransferFailed();
} else {
IERC20(order.makerAsset).safeTransferFrom(maker, target, makingAmount);
}
if (order.takerAsset == address(_WETH) && msg.value > 0) {
if (msg.value != takingAmount) revert Errors.InvalidMsgValue();
_WETH.deposit{ value: takingAmount }();
_WETH.transfer(maker, takingAmount);
} else {
if (msg.value != 0) revert Errors.InvalidMsgValue();
IERC20(order.takerAsset).safeTransferFrom(msg.sender, maker, takingAmount);
}
}
function _invalidateOrder(address maker, uint256 orderInfo, uint256 additionalMask) private {
uint256 invalidatorSlot = uint64(orderInfo) >> 8;
uint256 invalidatorBits = (1 << uint8(orderInfo)) | additionalMask;
mapping(uint256 => uint256) storage invalidatorStorage = _invalidator[maker];
uint256 invalidator = invalidatorStorage[invalidatorSlot];
if (invalidator & invalidatorBits == invalidatorBits) revert InvalidatedOrder();
invalidatorStorage[invalidatorSlot] = invalidator | invalidatorBits;
}
}
pragma solidity 0.8.17;
library OrderLib {
struct Order {
uint256 salt;
address makerAsset;
address takerAsset;
address maker;
address receiver;
address allowedSender;
uint256 makingAmount;
uint256 takingAmount;
uint256 offsets;
bytes interactions;
}
bytes32 constant internal _LIMIT_ORDER_TYPEHASH = keccak256(
"Order("
"uint256 salt,"
"address makerAsset,"
"address takerAsset,"
"address maker,"
"address receiver,"
"address allowedSender,"
"uint256 makingAmount,"
"uint256 takingAmount,"
"uint256 offsets,"
"bytes interactions"
")"
);
enum DynamicField {
MakerAssetData,
TakerAssetData,
GetMakingAmount,
GetTakingAmount,
Predicate,
Permit,
PreInteraction,
PostInteraction
}
function getterIsFrozen(bytes calldata getter) internal pure returns(bool) {
return getter.length == 1 && getter[0] == "x";
}
function _get(Order calldata order, DynamicField field) private pure returns(bytes calldata) {
uint256 bitShift = uint256(field) << 5;
return order.interactions[
uint32((order.offsets << 32) >> bitShift):
uint32(order.offsets >> bitShift)
];
}
function makerAssetData(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.MakerAssetData);
}
function takerAssetData(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.TakerAssetData);
}
function getMakingAmount(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.GetMakingAmount);
}
function getTakingAmount(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.GetTakingAmount);
}
function predicate(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.Predicate);
}
function permit(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.Permit);
}
function preInteraction(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.PreInteraction);
}
function postInteraction(Order calldata order) internal pure returns(bytes calldata) {
return _get(order, DynamicField.PostInteraction);
}
function hash(Order calldata order, bytes32 domainSeparator) internal pure returns(bytes32 result) {
bytes calldata interactions = order.interactions;
bytes32 typehash = _LIMIT_ORDER_TYPEHASH;
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, interactions.offset, interactions.length)
mstore(add(ptr, 0x140), keccak256(ptr, interactions.length))
calldatacopy(add(ptr, 0x20), order, 0x120)
mstore(ptr, typehash)
result := keccak256(ptr, 0x160)
}
result = ECDSA.toTypedDataHash(domainSeparator, result);
}
}
pragma solidity 0.8.17;
library ArgumentsDecoder {
error IncorrectDataLength();
function decodeUint256(bytes calldata data, uint256 offset) internal pure returns(uint256 value) {
unchecked { if (data.length < offset + 32) revert IncorrectDataLength(); }
assembly {
value := calldataload(add(data.offset, offset))
}
}
function decodeSelector(bytes calldata data) internal pure returns(bytes4 value) {
if (data.length < 4) revert IncorrectDataLength();
assembly {
value := calldataload(data.offset)
}
}
function decodeTailCalldata(bytes calldata data, uint256 tailOffset) internal pure returns(bytes calldata args) {
if (data.length < tailOffset) revert IncorrectDataLength();
assembly {
args.offset := add(data.offset, tailOffset)
args.length := sub(data.length, tailOffset)
}
}
function decodeTargetAndCalldata(bytes calldata data) internal pure returns(address target, bytes calldata args) {
if (data.length < 20) revert IncorrectDataLength();
assembly {
target := shr(96, calldataload(data.offset))
args.offset := add(data.offset, 20)
args.length := sub(data.length, 20)
}
}
}
pragma solidity 0.8.17;
contract NonceManager {
error AdvanceNonceFailed();
event NonceIncreased(address indexed maker, uint256 newNonce);
mapping(address => uint256) public nonce;
function increaseNonce() external {
advanceNonce(1);
}
function advanceNonce(uint8 amount) public {
if (amount == 0) revert AdvanceNonceFailed();
uint256 newNonce = nonce[msg.sender] + amount;
nonce[msg.sender] = newNonce;
emit NonceIncreased(msg.sender, newNonce);
}
function nonceEquals(address makerAddress, uint256 makerNonce) public view returns(bool) {
return nonce[makerAddress] == makerNonce;
}
}
pragma solidity 0.8.17;
contract PredicateHelper is NonceManager {
using ArgumentsDecoder for bytes;
error ArbitraryStaticCallFailed();
function or(uint256 offsets, bytes calldata data) public view returns(bool) {
uint256 current;
uint256 previous;
for (uint256 i = 0; (current = uint32(offsets >> i)) != 0; i += 32) {
(bool success, uint256 res) = _selfStaticCall(data[previous:current]);
if (success && res == 1) {
return true;
}
previous = current;
}
return false;
}
function and(uint256 offsets, bytes calldata data) public view returns(bool) {
uint256 current;
uint256 previous;
for (uint256 i = 0; (current = uint32(offsets >> i)) != 0; i += 32) {
(bool success, uint256 res) = _selfStaticCall(data[previous:current]);
if (!success || res != 1) {
return false;
}
previous = current;
}
return true;
}
function eq(uint256 value, bytes calldata data) public view returns(bool) {
(bool success, uint256 res) = _selfStaticCall(data);
return success && res == value;
}
function lt(uint256 value, bytes calldata data) public view returns(bool) {
(bool success, uint256 res) = _selfStaticCall(data);
return success && res < value;
}
function gt(uint256 value, bytes calldata data) public view returns(bool) {
(bool success, uint256 res) = _selfStaticCall(data);
return success && res > value;
}
function timestampBelow(uint256 time) public view returns(bool) {
return block.timestamp < time;
}
function arbitraryStaticCall(address target, bytes calldata data) public view returns(uint256) {
(bool success, uint256 res) = _staticcallForUint(target, data);
if (!success) revert ArbitraryStaticCallFailed();
return res;
}
function timestampBelowAndNonceEquals(uint256 timeNonceAccount) public view returns(bool) {
uint256 _time = uint48(timeNonceAccount >> 208);
uint256 _nonce = uint48(timeNonceAccount >> 160);
address _account = address(uint160(timeNonceAccount));
return timestampBelow(_time) && nonceEquals(_account, _nonce);
}
function _selfStaticCall(bytes calldata data) internal view returns(bool, uint256) {
uint256 selector = uint32(data.decodeSelector());
uint256 arg = data.decodeUint256(4);
if (selector == uint32(this.timestampBelowAndNonceEquals.selector)) {
return (true, timestampBelowAndNonceEquals(arg) ? 1 : 0);
}
if (selector < uint32(this.arbitraryStaticCall.selector)) {
if (selector < uint32(this.eq.selector)) {
if (selector == uint32(this.gt.selector)) {
return (true, gt(arg, data.decodeTailCalldata(100)) ? 1 : 0);
} else if (selector == uint32(this.timestampBelow.selector)) {
return (true, timestampBelow(arg) ? 1 : 0);
}
} else {
if (selector == uint32(this.eq.selector)) {
return (true, eq(arg, data.decodeTailCalldata(100)) ? 1 : 0);
} else if (selector == uint32(this.or.selector)) {
return (true, or(arg, data.decodeTailCalldata(100)) ? 1 : 0);
}
}
} else {
if (selector < uint32(this.lt.selector)) {
if (selector == uint32(this.arbitraryStaticCall.selector)) {
return (true, arbitraryStaticCall(address(uint160(arg)), data.decodeTailCalldata(100)));
} else if (selector == uint32(this.and.selector)) {
return (true, and(arg, data.decodeTailCalldata(100)) ? 1 : 0);
}
} else {
if (selector == uint32(this.lt.selector)) {
return (true, lt(arg, data.decodeTailCalldata(100)) ? 1 : 0);
} else if (selector == uint32(this.nonceEquals.selector)) {
return (true, nonceEquals(address(uint160(arg)), data.decodeUint256(0x24)) ? 1 : 0);
}
}
}
return _staticcallForUint(address(this), data);
}
function _staticcallForUint(address target, bytes calldata input) private view returns(bool success, uint256 res) {
assembly {
let data := mload(0x40)
calldatacopy(data, input.offset, input.length)
success := staticcall(gas(), target, data, input.length, 0x0, 0x20)
success := and(success, eq(returndatasize(), 32))
if success {
res := mload(0)
}
}
}
}
pragma solidity 0.8.17;
interface IOrderMixin {
function remaining(bytes32 orderHash) external view returns(uint256 amount);
function remainingRaw(bytes32 orderHash) external view returns(uint256 rawAmount);
function remainingsRaw(bytes32[] memory orderHashes) external view returns(uint256[] memory rawAmounts);
function checkPredicate(OrderLib.Order calldata order) external view returns(bool result);
function hashOrder(OrderLib.Order calldata order) external view returns(bytes32);
function simulate(address target, bytes calldata data) external;
function cancelOrder(OrderLib.Order calldata order) external returns(uint256 orderRemaining, bytes32 orderHash);
function fillOrder(
OrderLib.Order calldata order,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount
) external payable returns(uint256 actualMakingAmount, uint256 actualTakingAmount, bytes32 orderHash);
function fillOrderToWithPermit(
OrderLib.Order calldata order,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount,
address target,
bytes calldata permit
) external returns(uint256 actualMakingAmount, uint256 actualTakingAmount, bytes32 orderHash);
function fillOrderTo(
OrderLib.Order calldata order_,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount,
address target
) external payable returns(uint256 actualMakingAmount, uint256 actualTakingAmount, bytes32 orderHash);
}
pragma solidity 0.8.17;
interface PreInteractionNotificationReceiver {
function fillOrderPreInteraction(
bytes32 orderHash,
address maker,
address taker,
uint256 makingAmount,
uint256 takingAmount,
uint256 remainingAmount,
bytes memory interactiveData
) external;
}
interface PostInteractionNotificationReceiver {
function fillOrderPostInteraction(
bytes32 orderHash,
address maker,
address taker,
uint256 makingAmount,
uint256 takingAmount,
uint256 remainingAmount,
bytes memory interactiveData
) external;
}
interface InteractionNotificationReceiver {
function fillOrderInteraction(
address taker,
uint256 makingAmount,
uint256 takingAmount,
bytes memory interactiveData
) external returns(uint256 offeredTakingAmount);
}
pragma solidity 0.8.17;
abstract contract OrderMixin is IOrderMixin, EIP712, PredicateHelper {
using SafeERC20 for IERC20;
using ArgumentsDecoder for bytes;
using OrderLib for OrderLib.Order;
error UnknownOrder();
error AccessDenied();
error AlreadyFilled();
error PermitLengthTooLow();
error ZeroTargetIsForbidden();
error RemainingAmountIsZero();
error PrivateOrder();
error BadSignature();
error ReentrancyDetected();
error PredicateIsNotTrue();
error OnlyOneAmountShouldBeZero();
error TakingAmountTooHigh();
error MakingAmountTooLow();
error SwapWithZeroAmount();
error TransferFromMakerToTakerFailed();
error TransferFromTakerToMakerFailed();
error WrongAmount();
error WrongGetter();
error GetAmountCallFailed();
error TakingAmountIncreased();
error SimulationResults(bool success, bytes res);
event OrderFilled(
address indexed maker,
bytes32 orderHash,
uint256 remaining
);
event OrderCanceled(
address indexed maker,
bytes32 orderHash,
uint256 remainingRaw
);
uint256 constant private _ORDER_DOES_NOT_EXIST = 0;
uint256 constant private _ORDER_FILLED = 1;
uint256 constant private _SKIP_PERMIT_FLAG = 1 << 255;
uint256 constant private _THRESHOLD_MASK = ~_SKIP_PERMIT_FLAG;
IWETH private immutable _WETH;
mapping(bytes32 => uint256) private _remaining;
constructor(IWETH weth) {
_WETH = weth;
}
function remaining(bytes32 orderHash) external view returns(uint256 ) {
uint256 amount = _remaining[orderHash];
if (amount == _ORDER_DOES_NOT_EXIST) revert UnknownOrder();
unchecked { return amount - 1; }
}
function remainingRaw(bytes32 orderHash) external view returns(uint256 ) {
return _remaining[orderHash];
}
function remainingsRaw(bytes32[] memory orderHashes) external view returns(uint256[] memory ) {
uint256[] memory results = new uint256[](orderHashes.length);
for (uint256 i = 0; i < orderHashes.length; i++) {
results[i] = _remaining[orderHashes[i]];
}
return results;
}
function simulate(address target, bytes calldata data) external {
(bool success, bytes memory result) = target.delegatecall(data);
revert SimulationResults(success, result);
}
function cancelOrder(OrderLib.Order calldata order) external returns(uint256 orderRemaining, bytes32 orderHash) {
if (order.maker != msg.sender) revert AccessDenied();
orderHash = hashOrder(order);
orderRemaining = _remaining[orderHash];
if (orderRemaining == _ORDER_FILLED) revert AlreadyFilled();
emit OrderCanceled(msg.sender, orderHash, orderRemaining);
_remaining[orderHash] = _ORDER_FILLED;
}
function fillOrder(
OrderLib.Order calldata order,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount
) external payable returns(uint256 , uint256 , bytes32 ) {
return fillOrderTo(order, signature, interaction, makingAmount, takingAmount, skipPermitAndThresholdAmount, msg.sender);
}
function fillOrderToWithPermit(
OrderLib.Order calldata order,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount,
address target,
bytes calldata permit
) external returns(uint256 , uint256 , bytes32 ) {
if (permit.length < 20) revert PermitLengthTooLow();
{
(address token, bytes calldata permitData) = permit.decodeTargetAndCalldata();
IERC20(token).safePermit(permitData);
}
return fillOrderTo(order, signature, interaction, makingAmount, takingAmount, skipPermitAndThresholdAmount, target);
}
function fillOrderTo(
OrderLib.Order calldata order_,
bytes calldata signature,
bytes calldata interaction,
uint256 makingAmount,
uint256 takingAmount,
uint256 skipPermitAndThresholdAmount,
address target
) public payable returns(uint256 actualMakingAmount, uint256 actualTakingAmount, bytes32 orderHash) {
if (target == address(0)) revert ZeroTargetIsForbidden();
orderHash = hashOrder(order_);
OrderLib.Order calldata order = order_;
actualMakingAmount = makingAmount;
actualTakingAmount = takingAmount;
uint256 remainingMakingAmount = _remaining[orderHash];
if (remainingMakingAmount == _ORDER_FILLED) revert RemainingAmountIsZero();
if (order.allowedSender != address(0) && order.allowedSender != msg.sender) revert PrivateOrder();
if (remainingMakingAmount == _ORDER_DOES_NOT_EXIST) {
if (!ECDSA.recoverOrIsValidSignature(order.maker, orderHash, signature)) revert BadSignature();
remainingMakingAmount = order.makingAmount;
bytes calldata permit = order.permit();
if (skipPermitAndThresholdAmount & _SKIP_PERMIT_FLAG == 0 && permit.length >= 20) {
(address token, bytes calldata permitCalldata) = permit.decodeTargetAndCalldata();
IERC20(token).safePermit(permitCalldata);
if (_remaining[orderHash] != _ORDER_DOES_NOT_EXIST) revert ReentrancyDetected();
}
} else {
unchecked { remainingMakingAmount -= 1; }
}
if (order.predicate().length > 0) {
if (!checkPredicate(order)) revert PredicateIsNotTrue();
}
if ((actualTakingAmount == 0) == (actualMakingAmount == 0)) {
revert OnlyOneAmountShouldBeZero();
} else if (actualTakingAmount == 0) {
if (actualMakingAmount > remainingMakingAmount) {
actualMakingAmount = remainingMakingAmount;
}
actualTakingAmount = _getTakingAmount(order.getTakingAmount(), order.makingAmount, actualMakingAmount, order.takingAmount, remainingMakingAmount, orderHash);
uint256 thresholdAmount = skipPermitAndThresholdAmount & _THRESHOLD_MASK;
if (actualTakingAmount * makingAmount > thresholdAmount * actualMakingAmount) revert TakingAmountTooHigh();
} else {
actualMakingAmount = _getMakingAmount(order.getMakingAmount(), order.takingAmount, actualTakingAmount, order.makingAmount, remainingMakingAmount, orderHash);
if (actualMakingAmount > remainingMakingAmount) {
actualMakingAmount = remainingMakingAmount;
actualTakingAmount = _getTakingAmount(order.getTakingAmount(), order.makingAmount, actualMakingAmount, order.takingAmount, remainingMakingAmount, orderHash);
if (actualTakingAmount > takingAmount) revert TakingAmountIncreased();
}
uint256 thresholdAmount = skipPermitAndThresholdAmount & _THRESHOLD_MASK;
if (actualMakingAmount * takingAmount < thresholdAmount * actualTakingAmount) revert MakingAmountTooLow();
}
if (actualMakingAmount == 0 || actualTakingAmount == 0) revert SwapWithZeroAmount();
unchecked {
remainingMakingAmount = remainingMakingAmount - actualMakingAmount;
_remaining[orderHash] = remainingMakingAmount + 1;
}
emit OrderFilled(order_.maker, orderHash, remainingMakingAmount);
if (order.preInteraction().length >= 20) {
(address interactionTarget, bytes calldata interactionData) = order.preInteraction().decodeTargetAndCalldata();
PreInteractionNotificationReceiver(interactionTarget).fillOrderPreInteraction(
orderHash, order.maker, msg.sender, actualMakingAmount, actualTakingAmount, remainingMakingAmount, interactionData
);
}
if (!_callTransferFrom(
order.makerAsset,
order.maker,
target,
actualMakingAmount,
order.makerAssetData()
)) revert TransferFromMakerToTakerFailed();
if (interaction.length >= 20) {
(address interactionTarget, bytes calldata interactionData) = interaction.decodeTargetAndCalldata();
uint256 offeredTakingAmount = InteractionNotificationReceiver(interactionTarget).fillOrderInteraction(
msg.sender, actualMakingAmount, actualTakingAmount, interactionData
);
if (offeredTakingAmount > actualTakingAmount &&
!OrderLib.getterIsFrozen(order.getMakingAmount()) &&
!OrderLib.getterIsFrozen(order.getTakingAmount()))
{
actualTakingAmount = offeredTakingAmount;
}
}
if (order.takerAsset == address(_WETH) && msg.value > 0) {
if (msg.value < actualTakingAmount) revert Errors.InvalidMsgValue();
if (msg.value > actualTakingAmount) {
unchecked {
(bool success, ) = msg.sender.call{value: msg.value - actualTakingAmount}("");
if (!success) revert Errors.ETHTransferFailed();
}
}
_WETH.deposit{ value: actualTakingAmount }();
_WETH.transfer(order.receiver == address(0) ? order.maker : order.receiver, actualTakingAmount);
} else {
if (msg.value != 0) revert Errors.InvalidMsgValue();
if (!_callTransferFrom(
order.takerAsset,
msg.sender,
order.receiver == address(0) ? order.maker : order.receiver,
actualTakingAmount,
order.takerAssetData()
)) revert TransferFromTakerToMakerFailed();
}
if (order.postInteraction().length >= 20) {
(address interactionTarget, bytes calldata interactionData) = order.postInteraction().decodeTargetAndCalldata();
PostInteractionNotificationReceiver(interactionTarget).fillOrderPostInteraction(
orderHash, order.maker, msg.sender, actualMakingAmount, actualTakingAmount, remainingMakingAmount, interactionData
);
}
}
function checkPredicate(OrderLib.Order calldata order) public view returns(bool) {
(bool success, uint256 res) = _selfStaticCall(order.predicate());
return success && res == 1;
}
function hashOrder(OrderLib.Order calldata order) public view returns(bytes32) {
return order.hash(_domainSeparatorV4());
}
function _callTransferFrom(address asset, address from, address to, uint256 amount, bytes calldata input) private returns(bool success) {
bytes4 selector = IERC20.transferFrom.selector;
assembly {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), from)
mstore(add(data, 0x24), to)
mstore(add(data, 0x44), amount)
calldatacopy(add(data, 0x64), input.offset, input.length)
let status := call(gas(), asset, 0, data, add(0x64, input.length), 0x0, 0x20)
success := and(status, or(iszero(returndatasize()), and(gt(returndatasize(), 31), eq(mload(0), 1))))
}
}
function _getMakingAmount(
bytes calldata getter,
uint256 orderTakingAmount,
uint256 requestedTakingAmount,
uint256 orderMakingAmount,
uint256 remainingMakingAmount,
bytes32 orderHash
) private view returns(uint256) {
if (getter.length == 0) {
return AmountCalculator.getMakingAmount(orderMakingAmount, orderTakingAmount, requestedTakingAmount);
}
return _callGetter(getter, orderTakingAmount, requestedTakingAmount, orderMakingAmount, remainingMakingAmount, orderHash);
}
function _getTakingAmount(
bytes calldata getter,
uint256 orderMakingAmount,
uint256 requestedMakingAmount,
uint256 orderTakingAmount,
uint256 remainingMakingAmount,
bytes32 orderHash
) private view returns(uint256) {
if (getter.length == 0) {
return AmountCalculator.getTakingAmount(orderMakingAmount, orderTakingAmount, requestedMakingAmount);
}
return _callGetter(getter, orderMakingAmount, requestedMakingAmount, orderTakingAmount, remainingMakingAmount, orderHash);
}
function _callGetter(
bytes calldata getter,
uint256 orderExpectedAmount,
uint256 requestedAmount,
uint256 orderResultAmount,
uint256 remainingMakingAmount,
bytes32 orderHash
) private view returns(uint256) {
if (getter.length == 1) {
if (OrderLib.getterIsFrozen(getter)) {
if (requestedAmount != orderExpectedAmount) revert WrongAmount();
return orderResultAmount;
} else {
revert WrongGetter();
}
} else {
(address target, bytes calldata data) = getter.decodeTargetAndCalldata();
(bool success, bytes memory result) = target.staticcall(abi.encodePacked(data, requestedAmount, remainingMakingAmount, orderHash));
if (!success || result.length != 32) revert GetAmountCallFailed();
return abi.decode(result, (uint256));
}
}
}
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;
}
}
pragma solidity ^0.8.0;
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);
}
}
pragma solidity 0.8.17;
contract AggregationRouterV5 is EIP712("1inch Aggregation Router", "5"), Ownable,
ClipperRouter, GenericRouter, UnoswapRouter, UnoswapV3Router, OrderMixin, OrderRFQMixin
{
using UniERC20 for IERC20;
error ZeroAddress();
constructor(IWETH weth)
UnoswapV3Router(weth)
ClipperRouter(weth)
OrderMixin(weth)
OrderRFQMixin(weth)
{
if (address(weth) == address(0)) revert ZeroAddress();
}
function rescueFunds(IERC20 token, uint256 amount) external onlyOwner {
token.uniTransfer(payable(msg.sender), amount);
}
function destroy() external onlyOwner {
selfdestruct(payable(msg.sender));
}
function _receive() internal override(EthReceiver, OnlyWethReceiver) {
EthReceiver._receive();
}
}
