编译器
0.8.17+commit.8df45f5f
文件 1 的 8:Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 2 的 8:Counters.sol
pragma solidity ^0.8.0;
library Counters {
struct Counter {
uint256 _value;
}
function current(Counter storage counter) internal view returns (uint256) {
return counter._value;
}
function increment(Counter storage counter) internal {
unchecked {
counter._value += 1;
}
}
function decrement(Counter storage counter) internal {
uint256 value = counter._value;
require(value > 0, "Counter: decrement overflow");
unchecked {
counter._value = value - 1;
}
}
function reset(Counter storage counter) internal {
counter._value = 0;
}
}
文件 3 的 8:IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 4 的 8:IERC721.sol
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
interface IERC721 is IERC165 {
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
function balanceOf(address owner) external view returns (uint256 balance);
function ownerOf(uint256 tokenId) external view returns (address owner);
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
function approve(address to, uint256 tokenId) external;
function setApprovalForAll(address operator, bool _approved) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
文件 5 的 8:ISlothAuctionHouse.sol
pragma solidity ^0.8.17;
pragma experimental ABIEncoderV2;
interface ISlothAuctionHouse {
struct Auction {
uint256 tokenId;
address tokenOwner;
address tokenContract;
uint256 amount;
uint256 timeBuffer;
uint256 reservePrice;
uint8 minBidIncrementPercentage;
address payable bidder;
uint256 startTime;
uint256 endTime;
bool settled;
}
event AuctionCreated(
uint256 indexed auctionId,
uint256 tokenId,
address tokenOwner,
address indexed tokenContract,
uint256 startTime,
uint256 endTime
);
event AuctionBid(
uint256 indexed auctionId,
uint256 indexed tokenId,
address indexed tokenContract,
address sender,
uint256 value,
bool extended
);
event AuctionExtended(
uint256 indexed auctionId,
uint256 endTime
);
event AuctionCanceled(
uint256 indexed auctionId,
uint256 indexed tokenId,
address indexed tokenContract
);
event AuctionSettled(
uint256 indexed auctionId,
address bidder,
uint256 amount
);
function createAuction(
uint256 tokenId,
address tokenContract,
uint256 startTime,
uint256 endTime
) external returns (uint256);
function createBid(uint256 auctionId, uint256 amount) external payable;
function cancelAuction(uint256 auctionId) external;
}
文件 6 的 8:Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 7 的 8:ReentrancyGuard.sol
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
_;
_status = _NOT_ENTERED;
}
}
文件 8 的 8:SlothAuctionHouse.sol
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import { ISlothAuctionHouse } from "./interfaces/ISlothAuctionHouse.sol";
import { Counters } from "@openzeppelin/contracts/utils/Counters.sol";
contract SlothAuctionHouse is ISlothAuctionHouse, Ownable, ReentrancyGuard {
using Counters for Counters.Counter;
uint256 public defaultTimeBuffer = 300;
uint256 public endTimeOffset = 3600 * 12;
uint256 public defaultReservePrice = 10000000000000000;
uint8 public defaultMinBidIncrementPercentage = 2;
bool public paused = true;
address private _treasuryAddress = 0x452Ccc6d4a818D461e20837B417227aB70C72B56;
Counters.Counter private _auctionIdTracker;
mapping(uint256 => ISlothAuctionHouse.Auction) public auctions;
uint256[] private _currentAuctions;
modifier auctionExists(uint256 auctionId) {
require(_exists(auctionId), "Auction doesn't exist");
_;
}
function _exists(uint256 auctionId) internal view returns(bool) {
return auctions[auctionId].tokenContract != address(0);
}
function settleAuction(uint256 _auctionId) external onlyOwner {
_settleAuction(_auctionId);
}
function pause() external onlyOwner {
_pause();
}
function unpause() external onlyOwner {
_unpause();
}
function setTimeBuffer(uint256 _auctionId, uint256 _timeBuffer) external onlyOwner {
auctions[_auctionId].timeBuffer = _timeBuffer;
}
function setReservePrice(uint256 _auctionId, uint256 _reservePrice) external onlyOwner {
auctions[_auctionId].reservePrice = _reservePrice;
}
function setMinBidIncrementPercentage(uint256 _auctionId, uint8 _minBidIncrementPercentage) external onlyOwner {
auctions[_auctionId].minBidIncrementPercentage = _minBidIncrementPercentage;
}
function setEndTimeOffset(uint256 _endTimeOffset) external onlyOwner {
endTimeOffset = _endTimeOffset;
}
function setTreasuryAddress(address treasuryAddress) external onlyOwner {
_treasuryAddress = treasuryAddress;
}
function createAuction(uint256 tokenId, address tokenContract, uint256 startTime, uint256 endTime) external onlyOwner nonReentrant returns (uint256) {
require(startTime < endTime, "start must be before end");
require(startTime > block.timestamp, "start must be in the future");
require(msg.sender == IERC721(tokenContract).ownerOf(tokenId), "sender must be token owner");
require(
IERC721(tokenContract).getApproved(tokenId) == address(this) || IERC721(tokenContract).isApprovedForAll(msg.sender, address(this)),
"tokenContract is not approved"
);
uint256 auctionId = _auctionIdTracker.current();
auctions[auctionId] = ISlothAuctionHouse.Auction({
tokenId: tokenId,
tokenOwner: msg.sender,
tokenContract: tokenContract,
amount: 0,
timeBuffer: defaultTimeBuffer,
reservePrice: defaultReservePrice,
minBidIncrementPercentage: defaultMinBidIncrementPercentage,
bidder: payable(0),
startTime: startTime,
endTime: endTime,
settled: false
});
_currentAuctions.push(auctionId);
_auctionIdTracker.increment();
emit AuctionCreated(auctionId, tokenId, msg.sender, tokenContract, startTime, endTime);
return auctionId;
}
function currentAuctions() external view returns (uint256[] memory) {
uint[] memory arr = new uint256[](_currentAuctions.length);
arr = _currentAuctions;
return arr;
}
function createBid(uint256 _auctionId, uint256 amount) external payable auctionExists(_auctionId) nonReentrant {
require(!auctions[_auctionId].settled, "Auction has already been settled");
require(block.timestamp < auctions[_auctionId].endTime, "Auction expired");
require(block.timestamp >= auctions[_auctionId].startTime, "not started");
require(amount >= auctions[_auctionId].reservePrice, "Must send at least reservePrice");
require(
msg.value >= auctions[_auctionId].amount + ((auctions[_auctionId].amount * auctions[_auctionId].minBidIncrementPercentage) / 100),
'Must send more than last bid by minBidIncrementPercentage amount'
);
address payable lastBidder = auctions[_auctionId].bidder;
if (lastBidder != address(0)) {
_safeTransferETHWithFallback(lastBidder, auctions[_auctionId].amount);
}
auctions[_auctionId].amount = msg.value;
auctions[_auctionId].bidder = payable(msg.sender);
bool extended = auctions[_auctionId].endTime - block.timestamp < auctions[_auctionId].timeBuffer;
if (extended) {
auctions[_auctionId].endTime = block.timestamp + auctions[_auctionId].timeBuffer;
}
emit AuctionBid(_auctionId, auctions[_auctionId].tokenId, auctions[_auctionId].tokenContract, msg.sender, msg.value, extended);
if (extended) {
emit AuctionExtended(_auctionId, auctions[_auctionId].endTime);
}
}
function _settleAuction(uint256 _auctionId) internal onlyOwner auctionExists(_auctionId) nonReentrant {
ISlothAuctionHouse.Auction memory auction = auctions[_auctionId];
require(block.timestamp > auction.endTime, "Auction hasn't completed yet");
require(!auction.settled, "Auction has already been settled");
auctions[_auctionId].settled = true;
if (auction.bidder != payable(0)) {
IERC721(auction.tokenContract).safeTransferFrom(auction.tokenOwner, auction.bidder, auction.tokenId);
}
if (auction.amount > 0 && address(this).balance >= auction.amount) {
_safeTransferETHWithFallback(_treasuryAddress, auction.amount);
}
emit AuctionSettled(_auctionId, auction.bidder, auction.amount);
}
function cancelAuction(uint256 auctionId) external onlyOwner nonReentrant auctionExists(auctionId) {
if (auctions[auctionId].bidder != payable(0) && !auctions[auctionId].settled) {
revert("already bidded");
}
_cancelAuction(auctionId);
}
function _cancelAuction(uint256 auctionId) internal {
emit AuctionCanceled(auctionId, auctions[auctionId].tokenId, auctions[auctionId].tokenContract);
delete auctions[auctionId];
}
function _safeTransferETHWithFallback(address to, uint256 amount) internal {
if (!_safeTransferETH(to, amount)) {
require(_safeTransferETH(owner(), amount), "receiver rejected ETH transfer");
}
}
function _safeTransferETH(address to, uint256 value) internal returns (bool) {
(bool success, ) = to.call{ value: value, gas: 30_000 }(new bytes(0));
return success;
}
function _pause() internal {
paused = true;
}
function _unpause() internal {
paused = false;
}
function owner() public view override returns (address) {
return super.owner();
}
function withdraw() external onlyOwner {
(bool sent,) = _treasuryAddress.call{value: address(this).balance}("");
require(sent, "Failed to send Ether");
}
}
{
"compilationTarget": {
"contracts/SlothAuctionHouse.sol": "SlothAuctionHouse"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"tokenContract","type":"address"},{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bool","name":"extended","type":"bool"}],"name":"AuctionBid","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"tokenContract","type":"address"}],"name":"AuctionCanceled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"address","name":"tokenOwner","type":"address"},{"indexed":true,"internalType":"address","name":"tokenContract","type":"address"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"AuctionCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"AuctionExtended","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"auctionId","type":"uint256"},{"indexed":false,"internalType":"address","name":"bidder","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"AuctionSettled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"auctions","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"tokenOwner","type":"address"},{"internalType":"address","name":"tokenContract","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"timeBuffer","type":"uint256"},{"internalType":"uint256","name":"reservePrice","type":"uint256"},{"internalType":"uint8","name":"minBidIncrementPercentage","type":"uint8"},{"internalType":"address payable","name":"bidder","type":"address"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"bool","name":"settled","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"auctionId","type":"uint256"}],"name":"cancelAuction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"tokenContract","type":"address"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"createAuction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_auctionId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"createBid","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"currentAuctions","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"defaultMinBidIncrementPercentage","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"defaultReservePrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"defaultTimeBuffer","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endTimeOffset","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_endTimeOffset","type":"uint256"}],"name":"setEndTimeOffset","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_auctionId","type":"uint256"},{"internalType":"uint8","name":"_minBidIncrementPercentage","type":"uint8"}],"name":"setMinBidIncrementPercentage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_auctionId","type":"uint256"},{"internalType":"uint256","name":"_reservePrice","type":"uint256"}],"name":"setReservePrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_auctionId","type":"uint256"},{"internalType":"uint256","name":"_timeBuffer","type":"uint256"}],"name":"setTimeBuffer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"treasuryAddress","type":"address"}],"name":"setTreasuryAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_auctionId","type":"uint256"}],"name":"settleAuction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]