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Contract Name:
UniSwapper
Compiler Version
v0.8.20+commit.a1b79de6
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import {UTBOwned} from "../UTBOwned.sol"; import {SwapParams} from "./SwapParams.sol"; import {SwapDirection} from "./SwapParams.sol"; import {IERC20} from "openzeppelin-contracts/interfaces/IERC20.sol"; import {SafeERC20} from "openzeppelin-contracts/token/ERC20/utils/SafeERC20.sol"; import {IWETH} from "decent-bridge/src/interfaces/IWETH.sol"; import {Owned} from "solmate/auth/Owned.sol"; import {ISwapper} from "../UTB.sol"; import {IV3SwapRouter} from "@uniswap/swap-contracts/interfaces/IV3SwapRouter.sol"; contract UniSwapper is UTBOwned, ISwapper { constructor() {} uint8 public constant SWAPPER_ID = 0; address public uniswap_router; address payable public wrapped; function setRouter(address _router) public onlyAdmin { uniswap_router = _router; } function setWrapped(address payable _wrapped) public onlyAdmin { wrapped = _wrapped; } function getId() public pure returns (uint8) { return SWAPPER_ID; } function updateSwapParams( SwapParams memory newSwapParams, bytes memory payload ) external pure returns (bytes memory) { (, address receiver, address refund) = abi.decode( payload, (SwapParams, address, address) ); return abi.encode(newSwapParams, receiver, refund); } function _refundUser(address user, address token, uint amount) private { SafeERC20.safeTransfer(IERC20(token), user, amount); } function _sendToRecipient( address recipient, address token, uint amount ) private { if (token == address(0)) { token = wrapped; } SafeERC20.safeTransfer(IERC20(token), recipient, amount); } function swap( bytes memory swapPayload ) external onlyUtb returns (address tokenOut, uint256 amountOut) { (SwapParams memory swapParams, address receiver, address refund) = abi .decode(swapPayload, (SwapParams, address, address)); tokenOut = swapParams.tokenOut; if (swapParams.path.length == 0) { return swapNoPath(swapParams, receiver, refund); } if (swapParams.direction == SwapDirection.EXACT_IN) { amountOut = swapExactIn(swapParams, receiver); } else { swapExactOut(swapParams, receiver, refund); amountOut = swapParams.amountOut; } } function _receiveAndWrapIfNeeded( SwapParams memory swapParams ) private returns (SwapParams memory _swapParams) { if (swapParams.tokenIn != address(0)) { SafeERC20.safeTransferFrom( IERC20(swapParams.tokenIn), msg.sender, address(this), swapParams.amountIn ); return swapParams; } swapParams.tokenIn = wrapped; IWETH(wrapped).deposit{value: swapParams.amountIn}(); return swapParams; } modifier routerIsSet() { if (uniswap_router == address(0)) revert RouterNotSet(); _; } function swapNoPath( SwapParams memory swapParams, address receiver, address refund ) public payable returns (address tokenOut, uint256 amountOut) { swapParams = _receiveAndWrapIfNeeded(swapParams); if (swapParams.direction == SwapDirection.EXACT_OUT) { _refundUser( refund, swapParams.tokenIn, swapParams.amountIn - swapParams.amountOut ); } uint amt2Recipient = swapParams.direction == SwapDirection.EXACT_OUT ? swapParams.amountOut : swapParams.amountIn; _sendToRecipient(receiver, swapParams.tokenOut, amt2Recipient); return (swapParams.tokenOut, amt2Recipient); } function swapExactIn( SwapParams memory swapParams, // SwapParams is a struct address receiver ) public payable routerIsSet returns (uint256 amountOut) { swapParams = _receiveAndWrapIfNeeded(swapParams); IV3SwapRouter.ExactInputParams memory params = IV3SwapRouter .ExactInputParams({ path: swapParams.path, recipient: address(this), amountIn: swapParams.amountIn, amountOutMinimum: swapParams.amountOut }); SafeERC20.forceApprove(IERC20(swapParams.tokenIn), uniswap_router, swapParams.amountIn); amountOut = IV3SwapRouter(uniswap_router).exactInput(params); _sendToRecipient(receiver, swapParams.tokenOut, amountOut); } function swapExactOut( SwapParams memory swapParams, address receiver, address refundAddress ) public payable routerIsSet returns (uint256 amountIn) { swapParams = _receiveAndWrapIfNeeded(swapParams); IV3SwapRouter.ExactOutputParams memory params = IV3SwapRouter .ExactOutputParams({ path: swapParams.path, recipient: address(this), //deadline: block.timestamp, amountOut: swapParams.amountOut, amountInMaximum: swapParams.amountIn }); SafeERC20.forceApprove(IERC20(swapParams.tokenIn), uniswap_router, swapParams.amountIn); amountIn = IV3SwapRouter(uniswap_router).exactOutput(params); // refund sender _refundUser( refundAddress, swapParams.tokenIn, params.amountInMaximum - amountIn ); _sendToRecipient(receiver, swapParams.tokenOut, swapParams.amountOut); } receive() external payable {} fallback() external payable {} }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import {Roles} from "decent-bridge/src/utils/Roles.sol"; contract UTBOwned is Roles { address payable public utb; constructor() Roles(msg.sender) {} /** * @dev Limit access to the approved UTB. */ modifier onlyUtb() { require(msg.sender == utb, "Only utb"); _; } /** * @dev Sets the approved UTB. * @param _utb The address of the UTB. */ function setUtb(address _utb) public onlyAdmin { utb = payable(_utb); } }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; library SwapDirection { uint8 constant EXACT_IN = 0; uint8 constant EXACT_OUT = 1; } struct SwapParams { uint256 amountIn; uint256 amountOut; address tokenIn; address tokenOut; uint8 direction; // if direction is exactAmountIn // then amount out will be the minimum amount out // if direction is exactAmountOutA // then amount in is maximum amount in bytes path; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol) pragma solidity ^0.8.0; import "../token/ERC20/IERC20.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' 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)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ 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"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ 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"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
pragma solidity ^0.8.0; import {IERC20} from "forge-std/interfaces/IERC20.sol"; interface IWETH is IERC20 { function deposit() external payable; function withdraw(uint) external; }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Simple single owner authorization mixin. /// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Owned.sol) abstract contract Owned { /*////////////////////////////////////////////////////////////// EVENTS //////////////////////////////////////////////////////////////*/ event OwnershipTransferred(address indexed user, address indexed newOwner); /*////////////////////////////////////////////////////////////// OWNERSHIP STORAGE //////////////////////////////////////////////////////////////*/ address public owner; modifier onlyOwner() virtual { require(msg.sender == owner, "UNAUTHORIZED"); _; } /*////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////*/ constructor(address _owner) { owner = _owner; emit OwnershipTransferred(address(0), _owner); } /*////////////////////////////////////////////////////////////// OWNERSHIP LOGIC //////////////////////////////////////////////////////////////*/ function transferOwnership(address newOwner) public virtual onlyOwner { owner = newOwner; emit OwnershipTransferred(msg.sender, newOwner); } }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import {Roles} from "decent-bridge/src/utils/Roles.sol"; import {SwapParams} from "./swappers/SwapParams.sol"; import {IUTB} from "./interfaces/IUTB.sol"; import {IUTBExecutor} from "./interfaces/IUTBExecutor.sol"; import {IERC20} from "openzeppelin-contracts/interfaces/IERC20.sol"; import {SafeERC20} from "openzeppelin-contracts/token/ERC20/utils/SafeERC20.sol"; import {IWETH} from "decent-bridge/src/interfaces/IWETH.sol"; import {IUTBFeeManager} from "./interfaces/IUTBFeeManager.sol"; import {IBridgeAdapter} from "./interfaces/IBridgeAdapter.sol"; import {ISwapper} from "./interfaces/ISwapper.sol"; import {SwapInstructions, FeeData, Fee, BridgeInstructions, SwapAndExecuteInstructions} from "./CommonTypes.sol"; contract UTB is IUTB, Roles { constructor() Roles(msg.sender) {} IUTBExecutor public executor; IUTBFeeManager public feeManager; IWETH public wrapped; mapping(uint8 => address) public swappers; mapping(uint8 => address) public bridgeAdapters; bool public isActive = true; /** * @dev only support calling swapAndExecute and bridgeAndExecute if active */ modifier isUtbActive() { if (!isActive) revert UTBPaused(); _; } /** * @dev Transfers fees from the sender to the fee recipients. * @param feeData The bridge fee in native, as well as utb fee tokens and amounts. * @param packedInfo The fees and swap instructions which were used to generate the signature. * @param signature The ECDSA signature to verify the fee structure. */ function _retrieveAndCollectFees( FeeData calldata feeData, bytes memory packedInfo, bytes calldata signature ) private returns (uint256 value) { if (address(feeManager) != address(0)) { feeManager.verifySignature(packedInfo, signature); value += feeData.bridgeFee; Fee[] memory fees = feeData.appFees; for (uint i = 0; i < fees.length; i++) { Fee memory fee = fees[i]; if (fee.token != address(0)) { SafeERC20.safeTransferFrom( IERC20(fee.token), msg.sender, fee.recipient, fee.amount ); } else { (bool success, ) = address(fee.recipient).call{value: fee.amount}(""); value += fee.amount; if (!success) revert ProtocolFeeCannotBeFetched(); } } } } /** * @dev Refunds leftover native to the specified refund address. * @param to The address receiving the refund. * @param leftover The amount of leftover native. */ function _refundLeftover(address to, uint256 leftover) internal { if (leftover > 0) { (bool success, ) = to.call{value: leftover}(""); require(success, "failed to refund leftover"); } } /** * @dev Sets the executor. * @param _executor The address of the executor. */ function setExecutor(address _executor) public onlyAdmin { executor = IUTBExecutor(_executor); } /** * @dev Sets the wrapped native token. * @param _wrapped The address of the wrapped token. */ function setWrapped(address _wrapped) public onlyAdmin { wrapped = IWETH(_wrapped); } /** * @dev Sets the fee manager. * @param _feeManager The address of the fee manager. */ function setFeeManager(address _feeManager) public onlyAdmin { feeManager = IUTBFeeManager(_feeManager); } /** * @dev toggles active state */ function toggleActive() public onlyAdmin { isActive = !isActive; } /** * @dev Performs a swap with the requested swapper and swap calldata. * @param swapInstructions The swapper ID and calldata to execute a swap. * @param retrieveTokenIn Flag indicating whether to transfer ERC20 for the swap. */ function performSwap( SwapInstructions memory swapInstructions, bool retrieveTokenIn ) private returns (address tokenOut, uint256 amountOut, uint256 value) { ISwapper swapper = ISwapper(swappers[swapInstructions.swapperId]); SwapParams memory swapParams = abi.decode( swapInstructions.swapPayload, (SwapParams) ); if (swapParams.tokenIn == address(0)) { if (msg.value < swapParams.amountIn) revert NotEnoughNative(); wrapped.deposit{value: swapParams.amountIn}(); value += swapParams.amountIn; swapParams.tokenIn = address(wrapped); swapInstructions.swapPayload = swapper.updateSwapParams( swapParams, swapInstructions.swapPayload ); } else if (retrieveTokenIn) { SafeERC20.safeTransferFrom( IERC20(swapParams.tokenIn), msg.sender, address(this), swapParams.amountIn ); } SafeERC20.forceApprove( IERC20(swapParams.tokenIn), address(swapper), swapParams.amountIn ); (tokenOut, amountOut) = swapper.swap(swapInstructions.swapPayload); if (tokenOut == address(0)) { wrapped.withdraw(amountOut); } } /// @inheritdoc IUTB function swapAndExecute( SwapAndExecuteInstructions calldata instructions, FeeData calldata feeData, bytes calldata signature ) public payable isUtbActive { uint256 value = _retrieveAndCollectFees(feeData, abi.encode(instructions, feeData), signature); value += _swapAndExecute( instructions.swapInstructions, instructions.target, instructions.paymentOperator, instructions.payload, instructions.refund ); _refundLeftover(instructions.refund, msg.value - value); emit Swapped(); } /** * @dev Swaps currency from the incoming to the outgoing token and executes a transaction with payment. * @param swapInstructions The swapper ID and calldata to execute a swap. * @param target The address of the target contract for the payment transaction. * @param paymentOperator The operator address for payment transfers requiring ERC20 approvals. * @param payload The calldata to execute the payment transaction. * @param refund The account receiving any refunds, typically the EOA which initiated the transaction. */ function _swapAndExecute( SwapInstructions memory swapInstructions, address target, address paymentOperator, bytes memory payload, address refund ) private returns (uint256 value) { address tokenOut; uint256 amountOut; (tokenOut, amountOut, value) = performSwap(swapInstructions, true); if (tokenOut == address(0)) { executor.execute{value: amountOut}( target, paymentOperator, payload, tokenOut, amountOut, refund ); } else { SafeERC20.forceApprove(IERC20(tokenOut), address(executor), amountOut); executor.execute( target, paymentOperator, payload, tokenOut, amountOut, refund ); } } /** * @dev Performs the pre bridge swap and modifies the post bridge swap to utilize the bridged amount. * @param instructions The bridge data, token swap data, and payment transaction payload. */ function swapAndModifyPostBridge( BridgeInstructions memory instructions ) private returns ( uint256 amount2Bridge, BridgeInstructions memory updatedInstructions, uint256 value ) { address tokenOut; uint256 amountOut; (tokenOut, amountOut, value) = performSwap( instructions.preBridge, true ); SwapParams memory newPostSwapParams = abi.decode( instructions.postBridge.swapPayload, (SwapParams) ); newPostSwapParams.amountIn = IBridgeAdapter( bridgeAdapters[instructions.bridgeId] ).getBridgedAmount(amountOut, tokenOut, newPostSwapParams.tokenIn, instructions.additionalArgs); updatedInstructions = instructions; updatedInstructions.postBridge.swapPayload = ISwapper(swappers[ instructions.postBridge.swapperId ]).updateSwapParams( newPostSwapParams, instructions.postBridge.swapPayload ); amount2Bridge = amountOut; } /** * @dev Checks if the bridge token is native, and approves the bridge adapter to transfer ERC20 if required. * @param instructions The bridge data, token swap data, and payment transaction payload. * @param amt2Bridge The amount of the bridge token being transferred to the bridge adapter. */ function approveAndCheckIfNative( BridgeInstructions memory instructions, uint256 amt2Bridge ) private returns (bool) { IBridgeAdapter bridgeAdapter = IBridgeAdapter(bridgeAdapters[instructions.bridgeId]); address bridgeToken = bridgeAdapter.getBridgeToken( instructions.additionalArgs ); if (bridgeToken != address(0)) { SafeERC20.forceApprove(IERC20(bridgeToken), address(bridgeAdapter), amt2Bridge); return false; } return true; } /// @inheritdoc IUTB function bridgeAndExecute( BridgeInstructions calldata instructions, FeeData calldata feeData, bytes calldata signature ) public payable isUtbActive returns (bytes memory) { uint256 feeValue = _retrieveAndCollectFees(feeData, abi.encode(instructions, feeData), signature); ( uint256 amt2Bridge, BridgeInstructions memory updatedInstructions, uint256 swapValue ) = swapAndModifyPostBridge(instructions); _refundLeftover(instructions.refund, msg.value - feeValue - swapValue); return callBridge(amt2Bridge, feeData.bridgeFee, updatedInstructions); } /** * @dev Calls the bridge adapter to bridge funds, and approves the bridge adapter to transfer ERC20 if required. * @param amt2Bridge The amount of the bridge token being bridged via the bridge adapter. * @param bridgeFee The fee being transferred to the bridge adapter and finally to the bridge. * @param instructions The bridge data, token swap data, and payment transaction payload. */ function callBridge( uint256 amt2Bridge, uint bridgeFee, BridgeInstructions memory instructions ) private returns (bytes memory) { bool native = approveAndCheckIfNative(instructions, amt2Bridge); emit BridgeCalled(); return IBridgeAdapter(bridgeAdapters[instructions.bridgeId]).bridge{ value: bridgeFee + (native ? amt2Bridge : 0) }( amt2Bridge, instructions.postBridge, instructions.dstChainId, instructions.target, instructions.paymentOperator, instructions.payload, instructions.additionalArgs, instructions.refund ); } /// @inheritdoc IUTB function receiveFromBridge( SwapInstructions memory postBridge, address target, address paymentOperator, bytes memory payload, address refund, uint8 bridgeId ) public payable { if (msg.sender != bridgeAdapters[bridgeId]) revert OnlyBridgeAdapter(); emit RecievedFromBridge(); _swapAndExecute(postBridge, target, paymentOperator, payload, refund); } /// @inheritdoc IUTB function registerSwapper(address swapper) public onlyAdmin { ISwapper s = ISwapper(swapper); swappers[s.getId()] = swapper; } /// @inheritdoc IUTB function registerBridge(address bridge) public onlyAdmin { IBridgeAdapter b = IBridgeAdapter(bridge); bridgeAdapters[b.getId()] = bridge; } receive() external payable {} fallback() external payable {} }
// SPDX-License-Identifier: GPL-2.0-or-later pragma solidity >=0.7.5; pragma abicoder v2; import '@uniswap/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol'; /// @title Router token swapping functionality /// @notice Functions for swapping tokens via Uniswap V3 interface IV3SwapRouter is IUniswapV3SwapCallback { struct ExactInputSingleParams { address tokenIn; address tokenOut; uint24 fee; address recipient; uint256 amountIn; uint256 amountOutMinimum; uint160 sqrtPriceLimitX96; } /// @notice Swaps `amountIn` of one token for as much as possible of another token /// @dev Setting `amountIn` to 0 will cause the contract to look up its own balance, /// and swap the entire amount, enabling contracts to send tokens before calling this function. /// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata /// @return amountOut The amount of the received token function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut); struct ExactInputParams { bytes path; address recipient; uint256 amountIn; uint256 amountOutMinimum; } /// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path /// @dev Setting `amountIn` to 0 will cause the contract to look up its own balance, /// and swap the entire amount, enabling contracts to send tokens before calling this function. /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata /// @return amountOut The amount of the received token function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut); struct ExactOutputSingleParams { address tokenIn; address tokenOut; uint24 fee; address recipient; uint256 amountOut; uint256 amountInMaximum; uint160 sqrtPriceLimitX96; } /// @notice Swaps as little as possible of one token for `amountOut` of another token /// that may remain in the router after the swap. /// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata /// @return amountIn The amount of the input token function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn); struct ExactOutputParams { bytes path; address recipient; uint256 amountOut; uint256 amountInMaximum; } /// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed) /// that may remain in the router after the swap. /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata /// @return amountIn The amount of the input token function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn); }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.13; import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol"; abstract contract Roles is AccessControl { constructor(address admin) { _grantRole(DEFAULT_ADMIN_ROLE, admin); } modifier onlyAdmin() { require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "Only admin"); _; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ 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"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ 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"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ 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); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ 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); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ 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); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ 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 { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.2; /// @dev Interface of the ERC20 standard as defined in the EIP. /// @dev This includes the optional name, symbol, and decimals metadata. interface IERC20 { /// @dev Emitted when `value` tokens are moved from one account (`from`) to another (`to`). event Transfer(address indexed from, address indexed to, uint256 value); /// @dev Emitted when the allowance of a `spender` for an `owner` is set, where `value` /// is the new allowance. event Approval(address indexed owner, address indexed spender, uint256 value); /// @notice Returns the amount of tokens in existence. function totalSupply() external view returns (uint256); /// @notice Returns the amount of tokens owned by `account`. function balanceOf(address account) external view returns (uint256); /// @notice Moves `amount` tokens from the caller's account to `to`. function transfer(address to, uint256 amount) external returns (bool); /// @notice Returns the remaining number of tokens that `spender` is allowed /// to spend on behalf of `owner` function allowance(address owner, address spender) external view returns (uint256); /// @notice Sets `amount` as the allowance of `spender` over the caller's tokens. /// @dev Be aware of front-running risks: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 function approve(address spender, uint256 amount) external returns (bool); /// @notice Moves `amount` tokens from `from` to `to` using the allowance mechanism. /// `amount` is then deducted from the caller's allowance. function transferFrom(address from, address to, uint256 amount) external returns (bool); /// @notice Returns the name of the token. function name() external view returns (string memory); /// @notice Returns the symbol of the token. function symbol() external view returns (string memory); /// @notice Returns the decimals places of the token. function decimals() external view returns (uint8); }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; import {SwapInstructions, FeeData, BridgeInstructions, SwapAndExecuteInstructions} from "../CommonTypes.sol"; interface IUTB { event Swapped(); event BridgeCalled(); event RecievedFromBridge(); /// @notice Thrown when protocol fees cannot be collected error ProtocolFeeCannotBeFetched(); /// @notice Thrown when UTB is paused error UTBPaused(); /// @notice Thrown when not enough native is passed for swap error NotEnoughNative(); /// @notice Thrown when receive from bridge is not called from a bridge adapter error OnlyBridgeAdapter(); /** * @dev Swaps currency from the incoming to the outgoing token and executes a transaction with payment. * @param instructions The token swap data and payment transaction payload. * @param feeData The bridge fee in native, as well as utb fee tokens and amounts. * @param signature The ECDSA signature to verify the fee structure. */ function swapAndExecute( SwapAndExecuteInstructions memory instructions, FeeData memory feeData, bytes memory signature ) external payable; /** * @dev Bridges funds in native or ERC20 and a payment transaction payload to the destination chain * @param instructions The bridge data, token swap data, and payment transaction payload. * @param feeData The bridge fee in native, as well as utb fee tokens and amounts. * @param signature The ECDSA signature to verify the fee structure. */ function bridgeAndExecute( BridgeInstructions memory instructions, FeeData memory feeData, bytes memory signature ) external payable returns (bytes memory); /** * @dev Receives funds from the bridge adapter, executes a swap, and executes a payment transaction. * @param postBridge The swapper ID and calldata to execute a swap. * @param target The address of the target contract for the payment transaction. * @param paymentOperator The operator address for payment transfers requiring ERC20 approvals. * @param payload The calldata to execute the payment transaction. * @param refund The account receiving any refunds, typically the EOA which initiated the transaction. */ function receiveFromBridge( SwapInstructions memory postBridge, address target, address paymentOperator, bytes memory payload, address refund, uint8 bridgeId ) external payable; /** * @dev Registers and maps a bridge adapter to a bridge adapter ID. * @param bridge The address of the bridge adapter. */ function registerBridge(address bridge) external; /** * @dev Registers and maps a swapper to a swapper ID. * @param swapper The address of the swapper. */ function registerSwapper(address swapper) external; function setExecutor(address _executor) external; function setFeeManager(address _feeManager) external; function setWrapped(address _wrapped) external; }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; interface IUTBExecutor { /** * @dev Executes a payment transaction with native OR ERC20. * @param target The address of the target contract for the payment transaction. * @param paymentOperator The operator address for payment transfers requiring ERC20 approvals. * @param payload The calldata to execute the payment transaction. * @param token The token being transferred, zero address for native. * @param amount The amount of native or ERC20 being sent with the payment transaction. * @param refund The account receiving any refunds, typically the EOA that initiated the transaction. */ function execute( address target, address paymentOperator, bytes memory payload, address token, uint256 amount, address refund ) external payable; /** * @dev Executes a payment transaction with native AND/OR ERC20. * @param target The address of the target contract for the payment transaction. * @param paymentOperator The operator address for payment transfers requiring ERC20 approvals. * @param payload The calldata to execute the payment transaction. * @param token The token being transferred, zero address for native. * @param amount The amount of native or ERC20 being sent with the payment transaction. * @param refund The account receiving any refunds, typically the EOA that initiated the transaction. * @param extraNative Forwards additional gas or native fees required to executing the payment transaction. */ function execute( address target, address paymentOperator, bytes memory payload, address token, uint256 amount, address refund, uint256 extraNative ) external; }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; interface IUTBFeeManager { /// @notice Thrown if incorrect signature error WrongSig(); /// @notice Thrown if sig length != 65 error WrongSigLength(); /** * @dev Verifies packed info containing fees in either native or ERC20. * @param packedInfo The fees and swap instructions used to generate the signature. * @param signature The ECDSA signature to verify the fee structure. */ function verifySignature( bytes memory packedInfo, bytes memory signature ) external; /** * @dev Sets the signer used for fee verification. * @param _signer The address of the signer. */ function setSigner(address _signer) external; }
pragma solidity ^0.8.0; import {SwapInstructions} from "../CommonTypes.sol"; interface IBridgeAdapter { error NoDstBridge(); function getId() external returns (uint8); function getBridgeToken( bytes calldata additionalArgs ) external returns (address); function getBridgedAmount( uint256 amt2Bridge, address preBridgeToken, address postBridgeToken, bytes calldata additionalArgs ) external returns (uint256); function bridge( uint256 amt2Bridge, SwapInstructions memory postBridge, uint256 dstChainId, address target, address paymentOperator, bytes memory payload, bytes calldata additionalArgs, address refund ) external payable returns (bytes memory); }
pragma solidity ^0.8.0; import {SwapParams} from "../swappers/SwapParams.sol"; interface ISwapper { error RouterNotSet(); function getId() external returns (uint8); function swap( bytes memory swapPayload ) external returns (address tokenOut, uint256 amountOut); function updateSwapParams( SwapParams memory newSwapParams, bytes memory payload ) external returns (bytes memory); }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.0; struct SwapInstructions { uint8 swapperId; bytes swapPayload; } struct FeeData { bytes4 appId; bytes4 affiliateId; uint bridgeFee; Fee[] appFees; } struct Fee { address recipient; address token; uint amount; } struct SwapAndExecuteInstructions { SwapInstructions swapInstructions; address target; address paymentOperator; address refund; bytes payload; } struct BridgeInstructions { SwapInstructions preBridge; SwapInstructions postBridge; uint8 bridgeId; uint256 dstChainId; address target; address paymentOperator; address refund; bytes payload; bytes additionalArgs; }
// SPDX-License-Identifier: GPL-2.0-or-later pragma solidity >=0.5.0; /// @title Callback for IUniswapV3PoolActions#swap /// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface interface IUniswapV3SwapCallback { /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap. /// @dev In the implementation you must pay the pool tokens owed for the swap. /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory. /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped. /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by /// the end of the swap. If positive, the callback must send that amount of token0 to the pool. /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by /// the end of the swap. If positive, the callback must send that amount of token1 to the pool. /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call function uniswapV3SwapCallback( int256 amount0Delta, int256 amount1Delta, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed 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] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ 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; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. 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); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ 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); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 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; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ 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); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 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; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ 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); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ 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; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
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Contract Security Audit
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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"RouterNotSet","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SWAPPER_ID","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getId","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_router","type":"address"}],"name":"setRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_utb","type":"address"}],"name":"setUtb","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_wrapped","type":"address"}],"name":"setWrapped","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"swapPayload","type":"bytes"}],"name":"swap","outputs":[{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint8","name":"direction","type":"uint8"},{"internalType":"bytes","name":"path","type":"bytes"}],"internalType":"struct SwapParams","name":"swapParams","type":"tuple"},{"internalType":"address","name":"receiver","type":"address"}],"name":"swapExactIn","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint8","name":"direction","type":"uint8"},{"internalType":"bytes","name":"path","type":"bytes"}],"internalType":"struct SwapParams","name":"swapParams","type":"tuple"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"refundAddress","type":"address"}],"name":"swapExactOut","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint8","name":"direction","type":"uint8"},{"internalType":"bytes","name":"path","type":"bytes"}],"internalType":"struct SwapParams","name":"swapParams","type":"tuple"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"refund","type":"address"}],"name":"swapNoPath","outputs":[{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"uniswap_router","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"},{"internalType":"address","name":"tokenOut","type":"address"},{"internalType":"uint8","name":"direction","type":"uint8"},{"internalType":"bytes","name":"path","type":"bytes"}],"internalType":"struct SwapParams","name":"newSwapParams","type":"tuple"},{"internalType":"bytes","name":"payload","type":"bytes"}],"name":"updateSwapParams","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"utb","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wrapped","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.