文件 1 的 31：Address.sol
pragma solidity ^0.8.1;
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 0;
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 31：BlobChecker.sol
pragma solidity ^0.8.4;
import "./OpenSeaStorefrontInterface.sol";
contract BlobChecker {
address constant private OPENSEA_STOREFRONT = 0x495f947276749Ce646f68AC8c248420045cb7b5e;
address constant public BLOB_LAB = 0x9ac320589Def76E17C02a6436a1e8244d66998B7;
OpenSeaStorefrontInterface internal storefront = OpenSeaStorefrontInterface(OPENSEA_STOREFRONT);
function _freeBlobs (uint256[] memory ids) internal pure returns (bool) {
for (uint256 index = 0; index < ids.length; index++) {
if (! _isFreeBlob(ids[index])) return false;
}
return true;
}
function _isFreeBlob (uint256 id) internal pure returns (bool) {
if (
id >= 918 && id <= 984 &&
id != 983
) {
return true;
}
if (id >= 993 && id <= 998) {
return true;
}
return false;
}
function _isBlob (uint256 id) internal view returns (bool) {
if (storefront.balanceOf(address(this), id) < 1) {
return false;
}
if (id >> 96 != uint256(uint160(BLOB_LAB))) {
return false;
}
return (id & 0xffffffffff) == 1;
}
function _getBlobTokenId (uint256 id) internal pure returns (uint256) {
uint256 _id = (id & 0xffffffffffffff0000000000) >> 40;
if (_id == 935) return 983;
if (_id == 686) return 985;
if (_id == 683) return 986;
if (_id == 687) return 987;
if (_id == 942) return 988;
if (_id == 917) return 989;
if (_id == 944) return 990;
if (_id == 903) return 991;
if (_id == 926) return 992;
if (_id == 688) return 999;
if (_id < 110) return _id - 9;
if (_id < 190) return _id - 14;
if (_id < 191) return _id - 20;
if (_id < 216) return _id - 15;
if (_id < 228) return _id - 17;
if (_id < 335) return _id - 18;
if (_id < 461) return _id - 19;
if (_id < 575) return _id - 20;
if (_id < 683) return _id - 21;
if (_id < 686) return _id - 22;
if (_id < 692) return _id - 25;
if (_id < 800) return _id - 26;
if (_id < 903) return _id - 27;
if (_id < 917) return _id - 28;
if (_id < 926) return _id - 29;
if (_id < 935) return _id - 30;
if (_id < 942) return _id - 31;
if (_id < 944) return _id - 32;
if (_id < 951) return _id - 33;
revert("Token not found");
}
}
文件 3 的 31：Blobs.sol
pragma solidity ^0.8.4;
import "./Imports.sol";
contract Blobs is
BlobChecker,
IERC1155Receiver,
WithIPFSMetaData,
WithFreezableMetadata,
WithMarketOffers
{
address constant private BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
constructor (string memory cid)
ERC721("Blob Mob", "BLOB")
WithIPFSMetaData(cid)
WithMarketOffers(payable(BLOB_LAB), 1000)
{}
function mint (
uint256[] memory tokenIDs,
address[] memory owners,
string memory cid
) external onlyOwner {
require(_freeBlobs(tokenIDs), "Blob ID not allowed");
for (uint256 index = 0; index < tokenIDs.length; index++) {
_mint(owners[index], tokenIDs[index]);
}
_setCID(cid);
}
function setCID (string memory cid) external onlyOwner unfrozen {
_setCID(cid);
}
function onERC1155Received(
address,
address from,
uint256 id,
uint256,
bytes calldata
) public override returns (bytes4) {
require(_isBlob(id), "Not a Blob");
_migrateBlob(id, from);
return IERC1155Receiver.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address from,
uint256[] calldata ids,
uint256[] calldata,
bytes calldata
) external override returns (bytes4) {
for (uint256 index = 0; index < ids.length; index++) {
require(_isBlob(ids[index]), "Not a Blob");
}
for (uint256 index = 0; index < ids.length; index++) {
_migrateBlob(ids[index], from);
}
return IERC1155Receiver.onERC1155BatchReceived.selector;
}
function tokenURI(uint256 tokenId)
public view override(WithIPFSMetaData, ERC721)
returns (string memory)
{
return WithIPFSMetaData.tokenURI(tokenId);
}
function supportsInterface(bytes4 interfaceId)
public view override(WithMarketOffers, ERC721, IERC165)
returns (bool)
{
return WithMarketOffers.supportsInterface(interfaceId);
}
function _migrateBlob(uint256 id, address owner) private {
uint256 tokenId = _getBlobTokenId(id);
storefront.safeTransferFrom(address(this), BURN_ADDRESS, id, 1, "");
_safeMint(owner, tokenId);
}
function _baseURI()
internal view override(WithIPFSMetaData, ERC721)
returns (string memory)
{
return WithIPFSMetaData._baseURI();
}
function _beforeTokenTransfer(address from, address to, uint256 tokenId)
internal override(WithMarketOffers, ERC721)
{
return WithMarketOffers._beforeTokenTransfer(from, to, tokenId);
}
}
文件 4 的 31：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 5 的 31：ECDSA.sol
pragma solidity ^0.8.0;
import "../Strings.sol";
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return;
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
} else if (error == RecoverError.InvalidSignatureV) {
revert("ECDSA: invalid signature 'v' value");
}
}
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else if (signature.length == 64) {
bytes32 r;
bytes32 vs;
assembly {
r := mload(add(signature, 0x20))
vs := mload(add(signature, 0x40))
}
return tryRecover(hash, r, vs);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
function tryRecover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address, RecoverError) {
bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
uint8 v = uint8((uint256(vs) >> 255) + 27);
return tryRecover(hash, v, r, s);
}
function recover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError) {
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
if (v != 27 && v != 28) {
return (address(0), RecoverError.InvalidSignatureV);
}
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
function recover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
文件 6 的 31：ERC1155.sol
pragma solidity ^0.8.0;
import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
using Address for address;
mapping(uint256 => mapping(address => uint256)) private _balances;
mapping(address => mapping(address => bool)) private _operatorApprovals;
string private _uri;
constructor(string memory uri_) {
_setURI(uri_);
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC1155).interfaceId ||
interfaceId == type(IERC1155MetadataURI).interfaceId ||
super.supportsInterface(interfaceId);
}
function uri(uint256) public view virtual override returns (string memory) {
return _uri;
}
function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
require(account != address(0), "ERC1155: balance query for the zero address");
return _balances[id][account];
}
function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
public
view
virtual
override
returns (uint256[] memory)
{
require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");
uint256[] memory batchBalances = new uint256[](accounts.length);
for (uint256 i = 0; i < accounts.length; ++i) {
batchBalances[i] = balanceOf(accounts[i], ids[i]);
}
return batchBalances;
}
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
return _operatorApprovals[account][operator];
}
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) public virtual override {
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: caller is not owner nor approved"
);
_safeTransferFrom(from, to, id, amount, data);
}
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) public virtual override {
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: transfer caller is not owner nor approved"
);
_safeBatchTransferFrom(from, to, ids, amounts, data);
}
function _safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: transfer to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
unchecked {
_balances[id][from] = fromBalance - amount;
}
_balances[id][to] += amount;
emit TransferSingle(operator, from, to, id, amount);
_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
}
function _safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
require(to != address(0), "ERC1155: transfer to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
unchecked {
_balances[id][from] = fromBalance - amount;
}
_balances[id][to] += amount;
}
emit TransferBatch(operator, from, to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
}
function _setURI(string memory newuri) internal virtual {
_uri = newuri;
}
function _mint(
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][to] += amount;
emit TransferSingle(operator, address(0), to, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
}
function _mintBatch(
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; i++) {
_balances[ids[i]][to] += amounts[i];
}
emit TransferBatch(operator, address(0), to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
}
function _burn(
address from,
uint256 id,
uint256 amount
) internal virtual {
require(from != address(0), "ERC1155: burn from the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
_balances[id][from] = fromBalance - amount;
}
emit TransferSingle(operator, from, address(0), id, amount);
}
function _burnBatch(
address from,
uint256[] memory ids,
uint256[] memory amounts
) internal virtual {
require(from != address(0), "ERC1155: burn from the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
for (uint256 i = 0; i < ids.length; i++) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
_balances[id][from] = fromBalance - amount;
}
}
emit TransferBatch(operator, from, address(0), ids, amounts);
}
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC1155: setting approval status for self");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
function _beforeTokenTransfer(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
function _doSafeTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) private {
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
if (response != IERC1155Receiver.onERC1155Received.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _doSafeBatchTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) private {
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
bytes4 response
) {
if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
uint256[] memory array = new uint256[](1);
array[0] = element;
return array;
}
}
文件 7 的 31：ERC165.sol
pragma solidity ^0.8.0;
import "./IERC165.sol";
abstract contract ERC165 is IERC165 {
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
文件 8 的 31：ERC721.sol
pragma solidity ^0.8.0;
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
string private _name;
string private _symbol;
mapping(uint256 => address) private _owners;
mapping(address => uint256) private _balances;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
function _baseURI() internal view virtual returns (string memory) {
return "";
}
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
文件 9 的 31：ERC721A.sol
pragma solidity ^0.8.4;
import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';
error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();
contract ERC721A is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
bool burned;
}
struct AddressData {
uint64 balance;
uint64 numberMinted;
uint64 numberBurned;
uint64 aux;
}
uint256 internal _currentIndex;
uint256 internal _burnCounter;
string private _name;
string private _symbol;
mapping(uint256 => TokenOwnership) internal _ownerships;
mapping(address => AddressData) private _addressData;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
function totalSupply() public view returns (uint256) {
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
function _totalMinted() internal view returns (uint256) {
unchecked {
return _currentIndex - _startTokenId();
}
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
function balanceOf(address owner) public view override returns (uint256) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
return uint256(_addressData[owner].numberMinted);
}
function _numberBurned(address owner) internal view returns (uint256) {
return uint256(_addressData[owner].numberBurned);
}
function _getAux(address owner) internal view returns (uint64) {
return _addressData[owner].aux;
}
function _setAux(address owner, uint64 aux) internal {
_addressData[owner].aux = aux;
}
function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr && curr < _currentIndex) {
TokenOwnership memory ownership = _ownerships[curr];
if (!ownership.burned) {
if (ownership.addr != address(0)) {
return ownership;
}
while (true) {
curr--;
ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
}
}
}
revert OwnerQueryForNonexistentToken();
}
function ownerOf(uint256 tokenId) public view override returns (address) {
return _ownershipOf(tokenId).addr;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';
}
function _baseURI() internal view virtual returns (string memory) {
return '';
}
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
if (to == owner) revert ApprovalToCurrentOwner();
if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_approve(to, tokenId, owner);
}
function getApproved(uint256 tokenId) public view override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved) public virtual override {
if (operator == _msgSender()) revert ApproveToCaller();
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
_transfer(from, to, tokenId);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, '');
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
_transfer(from, to, tokenId);
if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
function _exists(uint256 tokenId) internal view returns (bool) {
return _startTokenId() <= tokenId && tokenId < _currentIndex &&
!_ownerships[tokenId].burned;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) internal {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
unchecked {
_addressData[to].balance += uint64(quantity);
_addressData[to].numberMinted += uint64(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
uint256 end = updatedIndex + quantity;
if (safe && to.isContract()) {
do {
emit Transfer(address(0), to, updatedIndex);
if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (updatedIndex != end);
if (_currentIndex != startTokenId) revert();
} else {
do {
emit Transfer(address(0), to, updatedIndex++);
} while (updatedIndex != end);
}
_currentIndex = updatedIndex;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
bool isApprovedOrOwner = (_msgSender() == from ||
isApprovedForAll(from, _msgSender()) ||
getApproved(tokenId) == _msgSender());
if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
_approve(address(0), tokenId, from);
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
TokenOwnership storage currSlot = _ownerships[tokenId];
currSlot.addr = to;
currSlot.startTimestamp = uint64(block.timestamp);
uint256 nextTokenId = tokenId + 1;
TokenOwnership storage nextSlot = _ownerships[nextTokenId];
if (nextSlot.addr == address(0)) {
if (nextTokenId != _currentIndex) {
nextSlot.addr = from;
nextSlot.startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
address from = prevOwnership.addr;
if (approvalCheck) {
bool isApprovedOrOwner = (_msgSender() == from ||
isApprovedForAll(from, _msgSender()) ||
getApproved(tokenId) == _msgSender());
if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
_approve(address(0), tokenId, from);
unchecked {
AddressData storage addressData = _addressData[from];
addressData.balance -= 1;
addressData.numberBurned += 1;
TokenOwnership storage currSlot = _ownerships[tokenId];
currSlot.addr = from;
currSlot.startTimestamp = uint64(block.timestamp);
currSlot.burned = true;
uint256 nextTokenId = tokenId + 1;
TokenOwnership storage nextSlot = _ownerships[nextTokenId];
if (nextSlot.addr == address(0)) {
if (nextTokenId != _currentIndex) {
nextSlot.addr = from;
nextSlot.startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
unchecked {
_burnCounter++;
}
}
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
文件 10 的 31：HasSecondarySaleFees.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
abstract contract HasSecondarySaleFees is ERC165 {
function getFeeRecipients(uint256 id) public view virtual returns (address payable[] memory);
function getFeeBps(uint256 id) public view virtual returns (uint256[] memory);
}
文件 11 的 31：IERC1155.sol
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
interface IERC1155 is IERC165 {
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
event URI(string value, uint256 indexed id);
function balanceOf(address account, uint256 id) external view returns (uint256);
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
function setApprovalForAll(address operator, bool approved) external;
function isApprovedForAll(address account, address operator) external view returns (bool);
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
文件 12 的 31：IERC1155MetadataURI.sol
pragma solidity ^0.8.0;
import "../IERC1155.sol";
interface IERC1155MetadataURI is IERC1155 {
function uri(uint256 id) external view returns (string memory);
}
文件 13 的 31：IERC1155Receiver.sol
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
interface IERC1155Receiver is IERC165 {
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
文件 14 的 31：IERC165.sol
pragma solidity ^0.8.0;
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
文件 15 的 31：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
) external;
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
function approve(address to, uint256 tokenId) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function setApprovalForAll(address operator, bool _approved) external;
function isApprovedForAll(address owner, address operator) external view returns (bool);
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
文件 16 的 31：IERC721Metadata.sol
pragma solidity ^0.8.0;
import "../IERC721.sol";
interface IERC721Metadata is IERC721 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function tokenURI(uint256 tokenId) external view returns (string memory);
}
文件 17 的 31：IERC721Receiver.sol
pragma solidity ^0.8.0;
interface IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
文件 18 的 31：Imports.sol
pragma solidity ^0.8.4;
import "@1001-digital/erc721-extensions/contracts/WithFreezableMetadata.sol";
import "@1001-digital/erc721-extensions/contracts/WithIPFSMetaData.sol";
import "@1001-digital/erc721-extensions/contracts/WithMarketOffers.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import "./BlobChecker.sol";
文件 19 的 31：JoyridePartImports.sol
pragma solidity ^0.8.4;
import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@1001-digital/erc721-extensions/contracts/WithSaleStart.sol";
import "./WithERC721AMetadata.sol";
import "./WithPresaleStart.sol";
import "./Blobs.sol";
文件 20 的 31：JoyrideParts.sol
pragma solidity ^0.8.4;
import "./JoyridePartImports.sol";
contract JoyrideParts is
ERC721A,
Ownable,
Pausable,
WithSaleStart,
WithPresaleStart,
WithERC721AMetadata
{
string constant public PROVENANCE_HASH = "QmPNromyewqCEguDWmnaaD8S17ZAQpyeb5cZ7mwsQCXfZE";
string constant public RANDOMISATION_SCRIPT = "QmcqXiimpsRpKg2XeTkNLxeociR4qWtFzrTu2mRThn3Tv1";
uint256 constant public MAX_TOKENS = 6000;
uint256 constant private TOKENS_FOR_CLAIM = 999;
uint256 constant private MAX_TOKENS_PER_PURCHASE = 10;
uint256 public tokenPrice = 0.08 ether;
Blobs public blobs;
address private joyrideAddress;
address private signerAddress;
mapping(uint256 => bool) private _claimedTokens;
mapping(address => uint8) private _purchasedDuringPresale;
uint256 private _reservedTokensClaimed = 0;
event FreePartClaimedFor(uint256 indexed blobId);
constructor (
address _blobAddress,
uint256 _saleStart,
uint256 _presaleStart,
string memory baseURI_,
address _signerAddress
)
ERC721A("Joyride Parts", "PART")
WithSaleStart(_saleStart)
WithPresaleStart(_presaleStart)
WithERC721AMetadata(baseURI_)
{
blobs = Blobs(_blobAddress);
signerAddress = _signerAddress;
}
function isClaimed(uint256 blobId) public view returns(bool) {
return _claimedTokens[blobId];
}
function isTop(uint256 tokenId) external view returns(bool) {
require(_exists(tokenId), "Token doesn't exist");
return tokenId % 2 == 1;
}
function isBase(uint256 tokenId) external view returns(bool) {
require(_exists(tokenId), "Token doesn't exist");
return tokenId % 2 == 0;
}
function mint(uint256[] calldata blobIds) public {
claimForBlobs(blobIds);
_safeMint(msg.sender, blobIds.length);
}
function mint(uint256[] calldata blobIds, uint256 amount, bytes memory signature)
public payable ensureAvailabilityFor(amount) whenNotPaused
{
claimForBlobs(blobIds);
if (amount > 0) {
require(tokenPrice * amount <= msg.value, "Insufficient ether value.");
if (saleStarted()) {
require(amount <= MAX_TOKENS_PER_PURCHASE, "Exceeded max token purchase.");
} else if (presaleStarted()) {
uint256 presaleMaxAmount = blobIds.length * 3;
bytes32 signedData = ECDSA.toEthSignedMessageHash(keccak256(abi.encodePacked(msg.sender)));
if (ECDSA.recover(signedData, signature) == signerAddress) {
presaleMaxAmount += 4;
}
require(_purchasedDuringPresale[msg.sender] + amount <= presaleMaxAmount, "Exceeded presale limit.");
_purchasedDuringPresale[msg.sender] += uint8(amount);
} else {
revert("Sale not started");
}
}
_safeMint(msg.sender, blobIds.length + amount);
}
function ownerMint(uint256 amount, address to) public onlyOwner ensureAvailabilityFor(amount) {
_safeMint(to, amount);
}
function tokenURI(uint256 tokenId)
public view override(WithERC721AMetadata, ERC721A)
returns (string memory)
{
return WithERC721AMetadata.tokenURI(tokenId);
}
function useInAssembly(uint256 tokenId) external {
require(msg.sender == joyrideAddress, "Not the assembler.");
_burn(tokenId, false);
}
function setJoyrideAddress(address _joyrideAddress) public onlyOwner {
joyrideAddress = _joyrideAddress;
}
function setSigner(address _signerAddress) public onlyOwner {
signerAddress = _signerAddress;
}
function setPrice (uint256 _price) external onlyOwner {
tokenPrice = _price;
}
function withdraw() external onlyOwner {
uint256 balance = address(this).balance;
uint256 devCut = balance / 10;
payable(0x6603418703e027019d6E8060542E6193509077B0).transfer(devCut);
payable(0xC09252422a1BDeB0bde16d12C9a5880BC7Fb3F53).transfer(devCut);
payable(0xf21f1195456c90Ce20410cADd5c0C51F8af3fBFA).transfer(devCut);
payable(0x9a8265D7100895Ef6c3832c599dCB05E73c47111).transfer(devCut);
payable(owner()).transfer(address(this).balance);
}
function _baseURI()
internal view override(WithERC721AMetadata, ERC721A)
returns (string memory)
{
return WithERC721AMetadata._baseURI();
}
modifier ensureAvailabilityFor(uint256 amount) {
uint256 amount_reserved = TOKENS_FOR_CLAIM - _reservedTokensClaimed;
require(
MAX_TOKENS - (_currentIndex - 1) >= amount + amount_reserved,
"Requested number of tokens not available"
);
_;
}
function claimForBlobs(uint256[] calldata blobIds) private {
if (blobIds.length > 0) {
for (uint256 idx = 0; idx < blobIds.length; idx++) {
uint256 blobId = blobIds[idx];
require(!isClaimed(blobId), "Token already claimed");
require(blobs.ownerOf(blobId) == msg.sender, "Not owner");
_claimedTokens[blobId] = true;
emit FreePartClaimedFor(blobId);
}
_reservedTokensClaimed += blobIds.length;
}
}
function _startTokenId() internal pure override returns (uint256) {
return 1;
}
}
文件 21 的 31：OpenSeaStorefrontInterface.sol
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
interface OpenSeaStorefrontInterface {
function balanceOf(address _owner, uint256 _id)
external
view
returns (uint256);
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) external;
}
文件 22 的 31：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());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_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 23 的 31：Pausable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Pausable is Context {
event Paused(address account);
event Unpaused(address account);
bool private _paused;
constructor() {
_paused = false;
}
function paused() public view virtual returns (bool) {
return _paused;
}
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
文件 24 的 31：Strings.sol
pragma solidity ^0.8.0;
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
function toString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
文件 25 的 31：WithERC721AMetadata.sol
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/access/Ownable.sol";
import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
abstract contract WithERC721AMetadata is ERC721A, Ownable {
using Strings for uint256;
event MetadataURIChanged(string indexed baseURI);
bool public frozen;
string public baseURI;
constructor (string memory baseURI_) {
baseURI = baseURI_;
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
return string(abi.encodePacked(
_baseURI(), "/", tokenId.toString(), "/metadata.json"
));
}
function _baseURI() internal view virtual override returns (string memory) {
return baseURI;
}
function setBaseURI(string memory baseURI_) public onlyOwner unfrozen {
baseURI = baseURI_;
emit MetadataURIChanged(baseURI);
}
function freeze() external onlyOwner {
frozen = true;
}
modifier unfrozen() {
require(! frozen, "Metadata already frozen");
_;
}
}
文件 26 的 31：WithFees.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "./standards/HasSecondarySaleFees.sol";
abstract contract WithFees is ERC721, HasSecondarySaleFees, Ownable {
address payable internal beneficiary;
uint256 internal bps;
constructor (address payable _beneficiary, uint256 _bps) {
beneficiary = _beneficiary;
bps = _bps;
}
function getFeeRecipients(uint256) public view override returns (address payable[] memory) {
address payable[] memory recipients = new address payable[](1);
recipients[0] = beneficiary;
return recipients;
}
function getFeeBps(uint256) public view override returns (uint256[] memory) {
uint256[] memory bpsArray = new uint256[](1);
bpsArray[0] = bps;
return bpsArray;
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC165) returns (bool) {
return interfaceId == type(HasSecondarySaleFees).interfaceId
|| ERC721.supportsInterface(interfaceId);
}
function setBeneficiary(address _beneficiary) public onlyOwner {
beneficiary = payable(_beneficiary);
}
}
文件 27 的 31：WithFreezableMetadata.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
contract WithFreezableMetadata is Ownable {
bool public frozen;
function freeze() external onlyOwner {
frozen = true;
}
modifier unfrozen() {
require(! frozen, "Metadata already frozen");
_;
}
}
文件 28 的 31：WithIPFSMetaData.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
abstract contract WithIPFSMetaData is ERC721 {
using Strings for uint256;
event MetadataURIChanged(string indexed baseURI);
string public cid;
constructor (string memory _cid) {
_setCID(_cid);
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
return string(abi.encodePacked(
_baseURI(), "/", tokenId.toString(), "/metadata.json"
));
}
function _baseURI() internal view virtual override returns (string memory) {
return string(abi.encodePacked("ipfs://", cid));
}
function _setCID(string memory _cid) internal virtual {
cid = _cid;
emit MetadataURIChanged(_baseURI());
}
}
文件 29 的 31：WithMarketOffers.sol
pragma solidity ^0.8.0;
import "@1001-digital/erc721-extensions/contracts/WithFees.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
abstract contract WithMarketOffers is ERC721, WithFees {
event OfferCreated(uint256 indexed tokenId, uint256 indexed value, address indexed to);
event OfferWithdrawn(uint256 indexed tokenId);
event Sale(uint256 indexed tokenId, address indexed from, address indexed to, uint256 value);
struct Offer {
uint256 price;
address payable specificBuyer;
}
mapping (uint256 => Offer) private _offers;
constructor (address payable _feeRecipient, uint256 _bps)
WithFees(_feeRecipient, _bps)
{}
function offerFor(uint256 tokenId) external view returns(Offer memory) {
require(_offers[tokenId].price > 0, "No active offer for this item");
return _offers[tokenId];
}
function _makeOffer(uint256 tokenId, uint256 price, address to) internal {
require(_isApprovedOrOwner(_msgSender(), tokenId), "Caller is neither owner nor approved");
require(price > 0, "Price should be higher than 0");
require(price > _offers[tokenId].price, "Price should be higher than existing offer");
_offers[tokenId] = Offer(price, payable(to));
emit OfferCreated(tokenId, price, to);
}
function makeOffer(uint256 tokenId, uint256 price) external {
_makeOffer(tokenId, price, address(0));
}
function makeOfferTo(uint256 tokenId, uint256 price, address to) external {
_makeOffer(tokenId, price, to);
}
function _cancelOffer(uint256 tokenId) private {
delete _offers[tokenId];
emit OfferWithdrawn(tokenId);
}
function cancelOffer(uint256 tokenId) external {
require(_isApprovedOrOwner(_msgSender(), tokenId), "Caller is neither owner nor approved");
_cancelOffer(tokenId);
}
function buy(uint256 tokenId) external payable isForSale(tokenId) {
Offer memory offer = _offers[tokenId];
address payable seller = payable(ownerOf(tokenId));
if (offer.specificBuyer != address(0)) {
require(offer.specificBuyer == msg.sender, "Can't buy a privately offered item");
}
require(msg.value >= offer.price, "Price not met");
seller.transfer(msg.value - (offer.price * bps / 10000));
_safeTransfer(seller, msg.sender, tokenId, "");
emit Sale(tokenId, seller, msg.sender, offer.price);
}
modifier isForSale(uint256 tokenId) {
require(_offers[tokenId].price > 0, "Item not for sale");
_;
}
function supportsInterface(bytes4 interfaceId)
public view virtual override(WithFees, ERC721)
returns (bool)
{
return WithFees.supportsInterface(interfaceId);
}
function _beforeTokenTransfer(address, address, uint256 tokenId) internal virtual override(ERC721) {
if (_offers[tokenId].price > 0) {
_cancelOffer(tokenId);
}
}
}
文件 30 的 31：WithPresaleStart.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
abstract contract WithPresaleStart is Ownable
{
uint256 private _presaleStart;
event PresaleStartChanged(uint256 time);
constructor (uint256 time) {
_presaleStart = time;
}
function setPresaleStart(uint256 time) public virtual onlyOwner beforePresaleStart {
_presaleStart = time;
emit PresaleStartChanged(time);
}
function presaleStart() public view virtual returns (uint256) {
return _presaleStart;
}
function presaleStarted() public view virtual returns (bool) {
return _presaleStart <= block.timestamp;
}
modifier afterPresaleStart() {
require(presaleStarted(), "Presale hasn't started yet");
_;
}
modifier beforePresaleStart() {
require(! presaleStarted(), "Presale has already started");
_;
}
}
文件 31 的 31：WithSaleStart.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
abstract contract WithSaleStart is Ownable
{
uint256 private _saleStart;
event SaleStartChanged(uint256 time);
constructor (uint256 time) {
_saleStart = time;
}
function setSaleStart(uint256 time) public virtual onlyOwner beforeSaleStart {
_saleStart = time;
emit SaleStartChanged(time);
}
function saleStart() public view virtual returns (uint256) {
return _saleStart;
}
function saleStarted() public view virtual returns (bool) {
return _saleStart <= block.timestamp;
}
modifier afterSaleStart() {
require(saleStarted(), "Sale hasn't started yet");
_;
}
modifier beforeSaleStart() {
require(! saleStarted(), "Sale has already started");
_;
}
}
{
"compilationTarget": {
"contracts/JoyrideParts.sol": "JoyrideParts"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 1000
},
"remappings": []
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