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Latest 25 from a total of 5,965 transactions
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| Set Approval For... | 24552004 | 10 mins ago | IN | 0 ETH | 0.00000247 | ||||
| Set Approval For... | 24551932 | 24 mins ago | IN | 0 ETH | 0.00009443 | ||||
| Set Approval For... | 24551915 | 28 mins ago | IN | 0 ETH | 0.00000259 | ||||
| Set Approval For... | 24551874 | 36 mins ago | IN | 0 ETH | 0.00000469 | ||||
| Safe Transfer Fr... | 24551747 | 1 hr ago | IN | 0 ETH | 0.00017161 | ||||
| Safe Transfer Fr... | 24551740 | 1 hr ago | IN | 0 ETH | 0.00001055 | ||||
| Set Approval For... | 24551731 | 1 hr ago | IN | 0 ETH | 0.0000966 | ||||
| Set Approval For... | 24551599 | 1 hr ago | IN | 0 ETH | 0.00000639 | ||||
| Set Approval For... | 24551415 | 2 hrs ago | IN | 0 ETH | 0.00000378 | ||||
| Safe Transfer Fr... | 24551390 | 2 hrs ago | IN | 0 ETH | 0.00001162 | ||||
| Set Approval For... | 24551239 | 2 hrs ago | IN | 0 ETH | 0.00009511 | ||||
| Set Approval For... | 24551131 | 3 hrs ago | IN | 0 ETH | 0.0000957 | ||||
| Set Approval For... | 24551129 | 3 hrs ago | IN | 0 ETH | 0.00000432 | ||||
| Set Approval For... | 24550967 | 3 hrs ago | IN | 0 ETH | 0.00000248 | ||||
| Set Approval For... | 24550916 | 3 hrs ago | IN | 0 ETH | 0.00004308 | ||||
| Set Approval For... | 24550899 | 3 hrs ago | IN | 0 ETH | 0.00000253 | ||||
| Set Approval For... | 24550869 | 3 hrs ago | IN | 0 ETH | 0.00000203 | ||||
| Safe Transfer Fr... | 24550843 | 4 hrs ago | IN | 0 ETH | 0.00000908 | ||||
| Safe Transfer Fr... | 24550799 | 4 hrs ago | IN | 0 ETH | 0.0001693 | ||||
| Set Approval For... | 24550668 | 4 hrs ago | IN | 0 ETH | 0.00000461 | ||||
| Set Approval For... | 24550494 | 5 hrs ago | IN | 0 ETH | 0.00000225 | ||||
| Set Approval For... | 24550475 | 5 hrs ago | IN | 0 ETH | 0.00000323 | ||||
| Set Approval For... | 24550382 | 5 hrs ago | IN | 0 ETH | 0.00004369 | ||||
| Safe Transfer Fr... | 24550356 | 5 hrs ago | IN | 0 ETH | 0.00013357 | ||||
| Set Approval For... | 24550353 | 5 hrs ago | IN | 0 ETH | 0.00000265 |
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Contract Name:
Normies
Compiler Version
v0.8.33+commit.64118f21
Optimization Enabled:
Yes with 10000 runs
Other Settings:
prague EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity 0.8.33;
import { OwnableBasic } from "@limitbreak/creator-token-standards/src/access/OwnableBasic.sol";
import { ERC721C } from "@limitbreak/creator-token-standards/src/erc721c/ERC721C.sol";
import { ERC721OpenZeppelin } from "@limitbreak/creator-token-standards/src/token/erc721/ERC721OpenZeppelin.sol";
import {
BasicRoyalties,
ERC2981
} from "@limitbreak/creator-token-standards/src/programmable-royalties/BasicRoyalties.sol";
import { Lifebuoy } from "solady/utils/Lifebuoy.sol";
import { INormiesRenderer } from "./interfaces/INormiesRenderer.sol";
import { INormiesStorage } from "./interfaces/INormiesStorage.sol";
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// @@+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+@@
// ##+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+====+=+=+##
// --=-=-=----=-=-=----=-=-=----=-=-=----=-=-=----=-=-=----=-=-=----=-=-=----=-=-=----=-=-=--
/**
* @title Normies
* @notice On-Chain Generative Faces
* @author Normies by Serc (https://x.com/serc1n)
* @author Smart Contract by Yigit Duman (https://x.com/yigitduman)
*/
contract Normies is ERC721C, BasicRoyalties, OwnableBasic, Lifebuoy {
INormiesRenderer public rendererContract;
INormiesStorage public storageContract;
uint256 private _totalSupply;
mapping(address => bool) public minterAddresses;
error NotApprovedOrOwner();
error NotMinter();
error ExceedsMaxSupply();
error URIQueryForNonExistentToken();
event MinterAddressSet(address indexed minter, bool allowed);
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
constructor(
INormiesRenderer _renderer,
INormiesStorage _storage,
address royaltyReceiver
) ERC721OpenZeppelin("Normies", "NORMIES") OwnableBasic() BasicRoyalties(royaltyReceiver, 500) Lifebuoy() {
rendererContract = _renderer;
storageContract = _storage;
}
modifier onlyMinters() {
require(msg.sender == owner() || minterAddresses[msg.sender], NotMinter());
_;
}
function maxSupply() public pure returns (uint256) {
return 10_000;
}
function totalSupply() external view returns (uint256) {
return _totalSupply;
}
function tokenURI(uint256 tokenId) public view override returns (string memory) {
require(_exists(tokenId), URIQueryForNonExistentToken());
return rendererContract.tokenURI(tokenId);
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721C, ERC2981) returns (bool) {
return ERC721C.supportsInterface(interfaceId) || super.supportsInterface(interfaceId);
}
function mint(address to, uint256 tokenId) external onlyMinters {
require(_totalSupply < maxSupply(), ExceedsMaxSupply());
require(tokenId < maxSupply(), ExceedsMaxSupply());
_mint(to, tokenId);
_totalSupply++;
}
function burn(uint256 tokenId) external {
require(_isApprovedOrOwner(msg.sender, tokenId), NotApprovedOrOwner());
_burn(tokenId);
_totalSupply--;
}
function setRoyaltyInfo(address receiver, uint96 feeNumerator) external onlyOwner {
_setDefaultRoyalty(receiver, feeNumerator);
}
function setRendererContract(INormiesRenderer _renderer) external onlyOwner {
rendererContract = _renderer;
emit BatchMetadataUpdate(0, type(uint256).max);
}
function setStorageContract(INormiesStorage _storage) external onlyOwner {
storageContract = _storage;
emit BatchMetadataUpdate(0, type(uint256).max);
}
function setMinterAddresses(address[] calldata addresses, bool[] calldata allowed) external onlyOwner {
for (uint256 i = 0; i < addresses.length; i++) {
minterAddresses[addresses[i]] = allowed[i];
emit MinterAddressSet(addresses[i], allowed[i]);
}
}
function signalMetadataUpdate() external onlyMinters {
emit BatchMetadataUpdate(0, type(uint256).max);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./OwnablePermissions.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
abstract contract OwnableBasic is OwnablePermissions, Ownable {
function _requireCallerIsContractOwner() internal view virtual override {
_checkOwner();
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../utils/AutomaticValidatorTransferApproval.sol";
import "../utils/CreatorTokenBase.sol";
import "../token/erc721/ERC721OpenZeppelin.sol";
import "../interfaces/ITransferValidatorSetTokenType.sol";
import {TOKEN_TYPE_ERC721} from "@limitbreak/permit-c/src/Constants.sol";
/**
* @title ERC721C
* @author Limit Break, Inc.
* @notice Extends OpenZeppelin's ERC721 implementation with Creator Token functionality, which
* allows the contract owner to update the transfer validation logic by managing a security policy in
* an external transfer validation security policy registry. See {CreatorTokenTransferValidator}.
*/
abstract contract ERC721C is ERC721OpenZeppelin, CreatorTokenBase, AutomaticValidatorTransferApproval {
/**
* @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved
* for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) {
isApproved = super.isApprovedForAll(owner, operator);
if (!isApproved) {
if (autoApproveTransfersFromValidator) {
isApproved = operator == address(getTransferValidator());
}
}
}
/**
* @notice Indicates whether the contract implements the specified interface.
* @dev Overrides supportsInterface in ERC165.
* @param interfaceId The interface id
* @return true if the contract implements the specified interface, false otherwise
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == type(ICreatorToken).interfaceId ||
interfaceId == type(ICreatorTokenLegacy).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @notice Returns the function selector for the transfer validator's validation function to be called
* @notice for transaction simulation.
*/
function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) {
functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256)"));
isViewFunction = true;
}
/// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateBeforeTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
/// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateAfterTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
function _tokenType() internal pure override returns(uint16) {
return uint16(TOKEN_TYPE_ERC721);
}
}
/**
* @title ERC721CInitializable
* @author Limit Break, Inc.
* @notice Initializable implementation of ERC721C to allow for EIP-1167 proxy clones.
*/
abstract contract ERC721CInitializable is ERC721OpenZeppelinInitializable, CreatorTokenBase, AutomaticValidatorTransferApproval {
function initializeERC721(string memory name_, string memory symbol_) public override {
super.initializeERC721(name_, symbol_);
_emitDefaultTransferValidator();
_registerTokenType(getTransferValidator());
}
/**
* @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved
* for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) {
isApproved = super.isApprovedForAll(owner, operator);
if (!isApproved) {
if (autoApproveTransfersFromValidator) {
isApproved = operator == address(getTransferValidator());
}
}
}
/**
* @notice Indicates whether the contract implements the specified interface.
* @dev Overrides supportsInterface in ERC165.
* @param interfaceId The interface id
* @return true if the contract implements the specified interface, false otherwise
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == type(ICreatorToken).interfaceId ||
interfaceId == type(ICreatorTokenLegacy).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @notice Returns the function selector for the transfer validator's validation function to be called
* @notice for transaction simulation.
*/
function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) {
functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256)"));
isViewFunction = true;
}
/// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateBeforeTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
/// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateAfterTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
function _tokenType() internal pure override returns(uint16) {
return uint16(TOKEN_TYPE_ERC721);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../../access/OwnablePermissions.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
abstract contract ERC721OpenZeppelinBase is ERC721 {
// Token name
string internal _contractName;
// Token symbol
string internal _contractSymbol;
function name() public view virtual override returns (string memory) {
return _contractName;
}
function symbol() public view virtual override returns (string memory) {
return _contractSymbol;
}
function _setNameAndSymbol(string memory name_, string memory symbol_) internal {
_contractName = name_;
_contractSymbol = symbol_;
}
}
abstract contract ERC721OpenZeppelin is ERC721OpenZeppelinBase {
constructor(string memory name_, string memory symbol_) ERC721("", "") {
_setNameAndSymbol(name_, symbol_);
}
}
abstract contract ERC721OpenZeppelinInitializable is OwnablePermissions, ERC721OpenZeppelinBase {
error ERC721OpenZeppelinInitializable__AlreadyInitializedERC721();
/// @notice Specifies whether or not the contract is initialized
bool private _erc721Initialized;
/// @dev Initializes parameters of ERC721 tokens.
/// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167.
function initializeERC721(string memory name_, string memory symbol_) public virtual {
_requireCallerIsContractOwner();
if(_erc721Initialized) {
revert ERC721OpenZeppelinInitializable__AlreadyInitializedERC721();
}
_erc721Initialized = true;
_setNameAndSymbol(name_, symbol_);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/token/common/ERC2981.sol";
/**
* @title BasicRoyaltiesBase
* @author Limit Break, Inc.
* @dev Base functionality of an NFT mix-in contract implementing the most basic form of programmable royalties.
*/
abstract contract BasicRoyaltiesBase is ERC2981 {
event DefaultRoyaltySet(address indexed receiver, uint96 feeNumerator);
event TokenRoyaltySet(uint256 indexed tokenId, address indexed receiver, uint96 feeNumerator);
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual override {
super._setDefaultRoyalty(receiver, feeNumerator);
emit DefaultRoyaltySet(receiver, feeNumerator);
}
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual override {
super._setTokenRoyalty(tokenId, receiver, feeNumerator);
emit TokenRoyaltySet(tokenId, receiver, feeNumerator);
}
}
/**
* @title BasicRoyalties
* @author Limit Break, Inc.
* @notice Constructable BasicRoyalties Contract implementation.
*/
abstract contract BasicRoyalties is BasicRoyaltiesBase {
constructor(address receiver, uint96 feeNumerator) {
_setDefaultRoyalty(receiver, feeNumerator);
}
}
/**
* @title BasicRoyaltiesInitializable
* @author Limit Break, Inc.
* @notice Initializable BasicRoyalties Contract implementation to allow for EIP-1167 clones.
*/
abstract contract BasicRoyaltiesInitializable is BasicRoyaltiesBase {}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Class that allows for rescue of ETH, ERC20, ERC721 tokens.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Lifebuoy.sol)
///
/// @dev This contract is created to mitigate the following disasters:
/// - Careless user sends tokens to the wrong chain or wrong contract.
/// - Careless dev deploys a contract without a withdraw function in attempt to rescue
/// careless user's tokens, due to deployment nonce mismatch caused by
/// script misfire / misconfiguration.
/// - Careless dev forgets to add a withdraw function to a NFT sale contract.
///
/// Note: if you are deploying via a untrusted `tx.origin`,
/// you MUST override `_lifebuoyDefaultDeployer` to return a trusted address.
///
/// For best safety:
/// - For non-escrow contracts, inherit Lifebuoy as much as possible,
/// and leave it unlocked.
/// - For escrow contracts, lock access as tight as possible,
/// as soon as possible. Or simply don't inherit Lifebuoy.
/// Escrow: Your contract is designed to hold ETH, ERC20s, ERC721s
/// (e.g. liquidity pools).
///
/// All rescue and rescue authorization functions require either:
/// - Caller is the deployer
/// AND the contract is not a proxy
/// AND `rescueLocked() & _LIFEBUOY_DEPLOYER_ACCESS_LOCK == 0`.
/// - Caller is `owner()`
/// AND `rescueLocked() & _LIFEBUOY_OWNER_ACCESS_LOCK == 0`.
///
/// The choice of using bit flags to represent locked statuses is for
/// efficiency, flexibility, convenience.
///
/// This contract is optimized with a priority on minimal bytecode size,
/// as the methods are not intended to be called often.
contract Lifebuoy {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The caller is not authorized to rescue or lock the rescue function.
error RescueUnauthorizedOrLocked();
/// @dev The rescue operation has failed due to a failed transfer.
error RescueTransferFailed();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* LOCK FLAGS CONSTANTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
// These flags are kept internal to avoid bloating up the function dispatch.
// You can just copy paste this into your own code.
/// @dev Flag to denote that the deployer's access is locked. (1)
uint256 internal constant _LIFEBUOY_DEPLOYER_ACCESS_LOCK = 1 << 0;
/// @dev Flag to denote that the `owner()`'s access is locked. (2)
uint256 internal constant _LIFEBUOY_OWNER_ACCESS_LOCK = 1 << 1;
/// @dev Flag to denote that the `lockRescue` function is locked. (4)
uint256 internal constant _LIFEBUOY_LOCK_RESCUE_LOCK = 1 << 2;
/// @dev Flag to denote that the `rescueETH` function is locked. (8)
uint256 internal constant _LIFEBUOY_RESCUE_ETH_LOCK = 1 << 3;
/// @dev Flag to denote that the `rescueERC20` function is locked. (16)
uint256 internal constant _LIFEBUOY_RESCUE_ERC20_LOCK = 1 << 4;
/// @dev Flag to denote that the `rescueERC721` function is locked. (32)
uint256 internal constant _LIFEBUOY_RESCUE_ERC721_LOCK = 1 << 5;
/// @dev Flag to denote that the `rescueERC1155` function is locked. (64)
uint256 internal constant _LIFEBUOY_RESCUE_ERC1155_LOCK = 1 << 6;
/// @dev Flag to denote that the `rescueERC6909` function is locked. (128)
uint256 internal constant _LIFEBUOY_RESCUE_ERC6909_LOCK = 1 << 7;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* IMMUTABLES */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev For checking that the caller is the deployer and
/// that the context is not a delegatecall
/// (so that the implementation deployer cannot drain proxies).
bytes32 internal immutable _lifebuoyDeployerHash;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The rescue locked flags slot is given by:
/// `bytes32(~uint256(uint32(bytes4(keccak256("_RESCUE_LOCKED_FLAGS_SLOT_NOT")))))`.
/// It is intentionally chosen to be a high value
/// to avoid collision with lower slots.
/// The choice of manual storage layout is to enable compatibility
/// with both regular and upgradeable contracts.
bytes32 internal constant _RESCUE_LOCKED_FLAGS_SLOT =
0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffb8e2915b;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CONSTRUCTOR */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
constructor() payable {
bytes32 hash;
uint256 deployer = uint160(_lifebuoyDefaultDeployer());
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, address())
mstore(0x20, deployer)
hash := keccak256(0x00, 0x40)
}
_lifebuoyDeployerHash = hash;
}
/// @dev Returns `tx.origin` by default. Override to return another address if needed.
///
/// Note: If you are deploying via a untrusted `tx.origin` (e.g. ERC4337 bundler)
/// you MUST override this function to return a trusted address.
function _lifebuoyDefaultDeployer() internal view virtual returns (address) {
// I know about EIP7645, and I will stop it if it gets traction.
// Worse case, I will add an `ecrecover` method. But not today.
return tx.origin;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* RESCUE OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Sends `amount` (in wei) ETH from the current contract to `to`.
/// Reverts upon failure.
function rescueETH(address to, uint256 amount)
public
payable
virtual
onlyRescuer(_LIFEBUOY_RESCUE_ETH_LOCK)
{
/// @solidity memory-safe-assembly
assembly {
if iszero(call(gas(), to, amount, codesize(), 0x00, codesize(), 0x00)) {
mstore(0x00, 0x7ec62e76) // `RescueTransferFailed()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Sends `amount` of ERC20 `token` from the current contract to `to`.
/// Does not check for existence of token or return data. Reverts upon failure.
function rescueERC20(address token, address to, uint256 amount)
public
payable
virtual
onlyRescuer(_LIFEBUOY_RESCUE_ERC20_LOCK)
{
/// @solidity memory-safe-assembly
assembly {
mstore(0x14, to) // Store the `to` argument.
mstore(0x34, amount) // Store the `amount` argument.
// `RescueTransferFailed()` and `transfer(address,uint256)`.
mstore(0x00, shl(96, 0x7ec62e76a9059cbb))
if iszero(call(gas(), token, callvalue(), 0x10, 0x44, codesize(), 0x00)) {
revert(0x0c, 0x04)
}
mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
}
}
/// @dev Sends `id` of ERC721 `token` from the current contract to `to`.
/// Does not check for existence of token or return data. Reverts upon failure.
function rescueERC721(address token, address to, uint256 id)
public
payable
virtual
onlyRescuer(_LIFEBUOY_RESCUE_ERC721_LOCK)
{
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
mstore(0x60, id) // Store the `id` argument.
mstore(0x40, shr(96, shl(96, to))) // Store the `to` argument.
mstore(0x20, address()) // Store the `from` argument.
// `RescueTransferFailed()` and `transferFrom(address,address,uint256)`.
mstore(0x00, 0x7ec62e7623b872dd)
if iszero(call(gas(), token, callvalue(), 0x1c, 0x64, codesize(), 0x00)) {
revert(0x18, 0x04)
}
mstore(0x60, 0) // Restore the zero slot to zero.
mstore(0x40, m) // Restore the free memory pointer.
}
}
/// @dev Sends `amount` of `id` of ERC1155 `token` from the current contract to `to`.
/// Does not check for existence of token or return data. Reverts upon failure.
function rescueERC1155(
address token,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) public payable virtual onlyRescuer(_LIFEBUOY_RESCUE_ERC1155_LOCK) {
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
// `RescueTransferFailed()` and `safeTransferFrom(address,address,uint256,uint256,bytes)`.
mstore(m, 0x7ec62e76f242432a)
mstore(add(0x20, m), address()) // Store the `from` argument.
mstore(add(0x40, m), shr(96, shl(96, to))) // Store the `to` argument.
mstore(add(0x60, m), id) // Store the `id` argument.
mstore(add(0x80, m), amount) // Store the `amount` argument.
mstore(add(0xa0, m), 0xa0) // Store the offset to `data`.
mstore(add(0xc0, m), data.length)
calldatacopy(add(m, 0xe0), data.offset, data.length)
// forgefmt: disable-next-item
if iszero(
call(gas(), token, callvalue(), add(m, 0x1c), add(0xc4, data.length), codesize(), 0x00)
) { revert(add(m, 0x18), 0x04) }
}
}
/// @dev Sends `amount` of `id` of ERC6909 `token` from the current contract to `to`.
/// Does not check for existence of token or return data. Reverts upon failure.
function rescueERC6909(address token, address to, uint256 id, uint256 amount)
public
payable
virtual
onlyRescuer(_LIFEBUOY_RESCUE_ERC6909_LOCK)
{
/// @solidity memory-safe-assembly
assembly {
let m := mload(0x40) // Cache the free memory pointer.
mstore(0x14, to) // Store the `to` argument.
mstore(0x34, id) // Store the `id` argument.
mstore(0x54, amount) // Store the `amount` argument.
// `RescueTransferFailed()` and `transfer(address,uint256,uint256)`.
mstore(0x00, shl(96, 0x7ec62e76095bcdb6))
if iszero(call(gas(), token, callvalue(), 0x10, 0x64, codesize(), 0x00)) {
revert(0x0c, 0x04)
}
mstore(0x60, 0) // Restore the zero slot to zero.
mstore(0x40, m) // Restore the free memory pointer.
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* RESCUE AUTHORIZATION OPERATIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the flags denoting whether access to rescue functions
/// (including `lockRescue`) is locked.
function rescueLocked() public view virtual returns (uint256 locks) {
/// @solidity memory-safe-assembly
assembly {
locks := sload(_RESCUE_LOCKED_FLAGS_SLOT)
}
}
/// @dev Locks (i.e. permanently removes) access to rescue functions (including `lockRescue`).
function lockRescue(uint256 locksToSet)
public
payable
virtual
onlyRescuer(_LIFEBUOY_LOCK_RESCUE_LOCK)
{
_lockRescue(locksToSet);
}
/// @dev Internal function to set the lock flags without going through access control.
function _lockRescue(uint256 locksToSet) internal virtual {
/// @solidity memory-safe-assembly
assembly {
let s := _RESCUE_LOCKED_FLAGS_SLOT
sstore(s, or(sload(s), locksToSet))
}
}
/// @dev Requires that the rescue function being guarded is:
/// 1. Not locked, AND
/// 2. Called by either:
/// (a) The `owner()`, OR
/// (b) The deployer (if not via a delegate call and deployer is an EOA).
function _checkRescuer(uint256 modeLock) internal view virtual {
uint256 locks = rescueLocked();
bytes32 h = _lifebuoyDeployerHash;
/// @solidity memory-safe-assembly
assembly {
for {} 1 {} {
// If the `modeLock` flag is true, set all bits in `locks` to true.
locks := or(sub(0, iszero(iszero(and(modeLock, locks)))), locks)
// Caller is the deployer
// AND the contract is not a proxy
// AND `locks & _LIFEBUOY_DEPLOYER_ACCESS_LOCK` is false.
mstore(0x20, caller())
mstore(and(locks, _LIFEBUOY_DEPLOYER_ACCESS_LOCK), address())
if eq(keccak256(0x00, 0x40), h) { break }
// If the caller is `owner()`
// AND `locks & _LIFEBUOY_OWNER_ACCESS_LOCK` is false.
mstore(0x08, 0x8da5cb5b0a0362e0) // `owner()` and `RescueUnauthorizedOrLocked()`.
if and( // The arguments of `and` are evaluated from right to left.
lt(
and(locks, _LIFEBUOY_OWNER_ACCESS_LOCK),
and(gt(returndatasize(), 0x1f), eq(mload(0x00), caller()))
),
staticcall(gas(), address(), 0x20, 0x04, 0x00, 0x20)
) { break }
revert(0x24, 0x04)
}
}
}
/// @dev Modifier that calls `_checkRescuer()` at the start of the function.
modifier onlyRescuer(uint256 modeLock) virtual {
_checkRescuer(modeLock);
_;
}
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.33;
interface INormiesRenderer {
function tokenURI(uint256 tokenId) external view returns (string memory);
}// SPDX-License-Identifier: MIT
pragma solidity 0.8.33;
interface INormiesStorage {
function getTokenRawImageData(uint256 tokenId) external view returns (bytes memory);
function getTokenTraits(uint256 tokenId) external view returns (bytes8);
function setTokenRawImageData(uint256 tokenId, bytes calldata imageData) external;
function setTokenTraits(uint256 tokenId, bytes8 traits) external;
function isTokenDataSet(uint256 tokenId) external view returns (bool);
function isRevealed() external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/utils/Context.sol";
abstract contract OwnablePermissions is Context {
function _requireCallerIsContractOwner() internal view virtual;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../access/OwnablePermissions.sol";
/**
* @title AutomaticValidatorTransferApproval
* @author Limit Break, Inc.
* @notice Base contract mix-in that provides boilerplate code giving the contract owner the
* option to automatically approve a 721-C transfer validator implementation for transfers.
*/
abstract contract AutomaticValidatorTransferApproval is OwnablePermissions {
/// @dev Emitted when the automatic approval flag is modified by the creator.
event AutomaticApprovalOfTransferValidatorSet(bool autoApproved);
/// @dev If true, the collection's transfer validator is automatically approved to transfer holder's tokens.
bool public autoApproveTransfersFromValidator;
/**
* @notice Sets if the transfer validator is automatically approved as an operator for all token owners.
*
* @dev Throws when the caller is not the contract owner.
*
* @param autoApprove If true, the collection's transfer validator will be automatically approved to
* transfer holder's tokens.
*/
function setAutomaticApprovalOfTransfersFromValidator(bool autoApprove) external {
_requireCallerIsContractOwner();
autoApproveTransfersFromValidator = autoApprove;
emit AutomaticApprovalOfTransferValidatorSet(autoApprove);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../access/OwnablePermissions.sol";
import "../interfaces/ICreatorToken.sol";
import "../interfaces/ICreatorTokenLegacy.sol";
import "../interfaces/ITransferValidator.sol";
import "./TransferValidation.sol";
import "../interfaces/ITransferValidatorSetTokenType.sol";
/**
* @title CreatorTokenBase
* @author Limit Break, Inc.
* @notice CreatorTokenBaseV3 is an abstract contract that provides basic functionality for managing token
* transfer policies through an implementation of ICreatorTokenTransferValidator/ICreatorTokenTransferValidatorV2/ICreatorTokenTransferValidatorV3.
* This contract is intended to be used as a base for creator-specific token contracts, enabling customizable transfer
* restrictions and security policies.
*
* <h4>Features:</h4>
* <ul>Ownable: This contract can have an owner who can set and update the transfer validator.</ul>
* <ul>TransferValidation: Implements the basic token transfer validation interface.</ul>
*
* <h4>Benefits:</h4>
* <ul>Provides a flexible and modular way to implement custom token transfer restrictions and security policies.</ul>
* <ul>Allows creators to enforce policies such as account and codehash blacklists, whitelists, and graylists.</ul>
* <ul>Can be easily integrated into other token contracts as a base contract.</ul>
*
* <h4>Intended Usage:</h4>
* <ul>Use as a base contract for creator token implementations that require advanced transfer restrictions and
* security policies.</ul>
* <ul>Set and update the ICreatorTokenTransferValidator implementation contract to enforce desired policies for the
* creator token.</ul>
*
* <h4>Compatibility:</h4>
* <ul>Backward and Forward Compatible - V1/V2/V3 Creator Token Base will work with V1/V2/V3 Transfer Validators.</ul>
*/
abstract contract CreatorTokenBase is OwnablePermissions, TransferValidation, ICreatorToken {
/// @dev Thrown when setting a transfer validator address that has no deployed code.
error CreatorTokenBase__InvalidTransferValidatorContract();
/// @dev The default transfer validator that will be used if no transfer validator has been set by the creator.
address public constant DEFAULT_TRANSFER_VALIDATOR = address(0x721C008fdff27BF06E7E123956E2Fe03B63342e3);
/// @dev Used to determine if the default transfer validator is applied.
/// @dev Set to true when the creator sets a transfer validator address.
bool private isValidatorInitialized;
/// @dev Address of the transfer validator to apply to transactions.
address private transferValidator;
constructor() {
_emitDefaultTransferValidator();
_registerTokenType(DEFAULT_TRANSFER_VALIDATOR);
}
/**
* @notice Sets the transfer validator for the token contract.
*
* @dev Throws when provided validator contract is not the zero address and does not have code.
* @dev Throws when the caller is not the contract owner.
*
* @dev <h4>Postconditions:</h4>
* 1. The transferValidator address is updated.
* 2. The `TransferValidatorUpdated` event is emitted.
*
* @param transferValidator_ The address of the transfer validator contract.
*/
function setTransferValidator(address transferValidator_) public {
_requireCallerIsContractOwner();
bool isValidTransferValidator = transferValidator_.code.length > 0;
if(transferValidator_ != address(0) && !isValidTransferValidator) {
revert CreatorTokenBase__InvalidTransferValidatorContract();
}
emit TransferValidatorUpdated(address(getTransferValidator()), transferValidator_);
isValidatorInitialized = true;
transferValidator = transferValidator_;
_registerTokenType(transferValidator_);
}
/**
* @notice Returns the transfer validator contract address for this token contract.
*/
function getTransferValidator() public view override returns (address validator) {
validator = transferValidator;
if (validator == address(0)) {
if (!isValidatorInitialized) {
validator = DEFAULT_TRANSFER_VALIDATOR;
}
}
}
/**
* @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy.
* Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent
* and calling _validateBeforeTransfer so that checks can be properly applied during token transfers.
*
* @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the
* transfer validator is expected to pre-validate the transfer.
*
* @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is
* set to a non-zero address.
*
* @param caller The address of the caller.
* @param from The address of the sender.
* @param to The address of the receiver.
* @param tokenId The token id being transferred.
*/
function _preValidateTransfer(
address caller,
address from,
address to,
uint256 tokenId,
uint256 /*value*/) internal virtual override {
address validator = getTransferValidator();
if (validator != address(0)) {
if (msg.sender == validator) {
return;
}
ITransferValidator(validator).validateTransfer(caller, from, to, tokenId);
}
}
/**
* @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy.
* Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent
* and calling _validateBeforeTransfer so that checks can be properly applied during token transfers.
*
* @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the
* transfer validator is expected to pre-validate the transfer.
*
* @dev Used for ERC20 and ERC1155 token transfers which have an amount value to validate in the transfer validator.
* @dev The `tokenId` for ERC20 tokens should be set to `0`.
*
* @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is
* set to a non-zero address.
*
* @param caller The address of the caller.
* @param from The address of the sender.
* @param to The address of the receiver.
* @param tokenId The token id being transferred.
* @param amount The amount of token being transferred.
*/
function _preValidateTransfer(
address caller,
address from,
address to,
uint256 tokenId,
uint256 amount,
uint256 /*value*/) internal virtual override {
address validator = getTransferValidator();
if (validator != address(0)) {
if (msg.sender == validator) {
return;
}
ITransferValidator(validator).validateTransfer(caller, from, to, tokenId, amount);
}
}
function _tokenType() internal virtual pure returns(uint16);
function _registerTokenType(address validator) internal {
if (validator != address(0)) {
uint256 validatorCodeSize;
assembly {
validatorCodeSize := extcodesize(validator)
}
if(validatorCodeSize > 0) {
try ITransferValidatorSetTokenType(validator).setTokenTypeOfCollection(address(this), _tokenType()) {
} catch { }
}
}
}
/**
* @dev Used during contract deployment for constructable and cloneable creator tokens
* @dev to emit the `TransferValidatorUpdated` event signaling the validator for the contract
* @dev is the default transfer validator.
*/
function _emitDefaultTransferValidator() internal {
emit TransferValidatorUpdated(address(0), DEFAULT_TRANSFER_VALIDATOR);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ITransferValidatorSetTokenType {
function setTokenTypeOfCollection(address collection, uint16 tokenType) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @dev Constant bytes32 value of 0x000...000
bytes32 constant ZERO_BYTES32 = bytes32(0);
/// @dev Constant value of 0
uint256 constant ZERO = 0;
/// @dev Constant value of 1
uint256 constant ONE = 1;
/// @dev Constant value representing an open order in storage
uint8 constant ORDER_STATE_OPEN = 0;
/// @dev Constant value representing a filled order in storage
uint8 constant ORDER_STATE_FILLED = 1;
/// @dev Constant value representing a cancelled order in storage
uint8 constant ORDER_STATE_CANCELLED = 2;
/// @dev Constant value representing the ERC721 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC721 = 721;
/// @dev Constant value representing the ERC1155 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC1155 = 1155;
/// @dev Constant value representing the ERC20 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC20 = 20;
/// @dev Constant value to mask the upper bits of a signature that uses a packed `vs` value to extract `s`
bytes32 constant UPPER_BIT_MASK = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
/// @dev EIP-712 typehash used for validating signature based stored approvals
bytes32 constant UPDATE_APPROVAL_TYPEHASH =
keccak256("UpdateApprovalBySignature(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 approvalExpiration,uint256 sigDeadline,uint256 masterNonce)");
/// @dev EIP-712 typehash used for validating a single use permit without additional data
bytes32 constant SINGLE_USE_PERMIT_TYPEHASH =
keccak256("PermitTransferFrom(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce)");
/// @dev EIP-712 typehash used for validating a single use permit with additional data
string constant SINGLE_USE_PERMIT_TRANSFER_ADVANCED_TYPEHASH_STUB =
"PermitTransferFromWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce,";
/// @dev EIP-712 typehash used for validating an order permit that updates storage as it fills
string constant PERMIT_ORDER_ADVANCED_TYPEHASH_STUB =
"PermitOrderWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 salt,address operator,uint256 expiration,uint256 masterNonce,";
/// @dev Pausable flag for stored approval transfers of ERC721 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC721 = 1 << 0;
/// @dev Pausable flag for stored approval transfers of ERC1155 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC1155 = 1 << 1;
/// @dev Pausable flag for stored approval transfers of ERC20 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC20 = 1 << 2;
/// @dev Pausable flag for single use permit transfers of ERC721 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC721 = 1 << 3;
/// @dev Pausable flag for single use permit transfers of ERC1155 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC1155 = 1 << 4;
/// @dev Pausable flag for single use permit transfers of ERC20 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC20 = 1 << 5;
/// @dev Pausable flag for order fill transfers of ERC1155 assets
uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC1155 = 1 << 6;
/// @dev Pausable flag for order fill transfers of ERC20 assets
uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC20 = 1 << 7;// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/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";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
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 token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
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");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
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"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
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, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
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, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
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);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
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 {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
* being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
* that `ownerOf(tokenId)` is `a`.
*/
// solhint-disable-next-line func-name-mixedcase
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/common/ERC2981.sol)
pragma solidity ^0.8.0;
import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
*
* Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
* specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
*
* Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
* fee is specified in basis points by default.
*
* IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
* https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
* voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
*
* _Available since v4.5._
*/
abstract contract ERC2981 is IERC2981, ERC165 {
struct RoyaltyInfo {
address receiver;
uint96 royaltyFraction;
}
RoyaltyInfo private _defaultRoyaltyInfo;
mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC2981
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice) public view virtual override returns (address, uint256) {
RoyaltyInfo memory royalty = _tokenRoyaltyInfo[tokenId];
if (royalty.receiver == address(0)) {
royalty = _defaultRoyaltyInfo;
}
uint256 royaltyAmount = (salePrice * royalty.royaltyFraction) / _feeDenominator();
return (royalty.receiver, royaltyAmount);
}
/**
* @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
* fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
* override.
*/
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
/**
* @dev Sets the royalty information that all ids in this contract will default to.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator.
*/
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: invalid receiver");
_defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
}
/**
* @dev Removes default royalty information.
*/
function _deleteDefaultRoyalty() internal virtual {
delete _defaultRoyaltyInfo;
}
/**
* @dev Sets the royalty information for a specific token id, overriding the global default.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator.
*/
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: Invalid parameters");
_tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
}
/**
* @dev Resets royalty information for the token id back to the global default.
*/
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
delete _tokenRoyaltyInfo[tokenId];
}
}// 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
pragma solidity ^0.8.4;
interface ICreatorToken {
event TransferValidatorUpdated(address oldValidator, address newValidator);
function getTransferValidator() external view returns (address validator);
function setTransferValidator(address validator) external;
function getTransferValidationFunction() external view returns (bytes4 functionSignature, bool isViewFunction);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ICreatorTokenLegacy {
event TransferValidatorUpdated(address oldValidator, address newValidator);
function getTransferValidator() external view returns (address validator);
function setTransferValidator(address validator) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ITransferValidator {
function applyCollectionTransferPolicy(address caller, address from, address to) external view;
function validateTransfer(address caller, address from, address to) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount) external;
function beforeAuthorizedTransfer(address operator, address token, uint256 tokenId) external;
function afterAuthorizedTransfer(address token, uint256 tokenId) external;
function beforeAuthorizedTransfer(address operator, address token) external;
function afterAuthorizedTransfer(address token) external;
function beforeAuthorizedTransfer(address token, uint256 tokenId) external;
function beforeAuthorizedTransferWithAmount(address token, uint256 tokenId, uint256 amount) external;
function afterAuthorizedTransferWithAmount(address token, uint256 tokenId) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/utils/Context.sol";
/**
* @title TransferValidation
* @author Limit Break, Inc.
* @notice A mix-in that can be combined with ERC-721 contracts to provide more granular hooks.
* Openzeppelin's ERC721 contract only provides hooks for before and after transfer. This allows
* developers to validate or customize transfers within the context of a mint, a burn, or a transfer.
*/
abstract contract TransferValidation is Context {
/// @dev Thrown when the from and to address are both the zero address.
error ShouldNotMintToBurnAddress();
/*************************************************************************/
/* Transfers Without Amounts */
/*************************************************************************/
/// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks.
function _validateBeforeTransfer(address from, address to, uint256 tokenId) internal virtual {
bool fromZeroAddress = from == address(0);
bool toZeroAddress = to == address(0);
if(fromZeroAddress && toZeroAddress) {
revert ShouldNotMintToBurnAddress();
} else if(fromZeroAddress) {
_preValidateMint(_msgSender(), to, tokenId, msg.value);
} else if(toZeroAddress) {
_preValidateBurn(_msgSender(), from, tokenId, msg.value);
} else {
_preValidateTransfer(_msgSender(), from, to, tokenId, msg.value);
}
}
/// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks.
function _validateAfterTransfer(address from, address to, uint256 tokenId) internal virtual {
bool fromZeroAddress = from == address(0);
bool toZeroAddress = to == address(0);
if(fromZeroAddress && toZeroAddress) {
revert ShouldNotMintToBurnAddress();
} else if(fromZeroAddress) {
_postValidateMint(_msgSender(), to, tokenId, msg.value);
} else if(toZeroAddress) {
_postValidateBurn(_msgSender(), from, tokenId, msg.value);
} else {
_postValidateTransfer(_msgSender(), from, to, tokenId, msg.value);
}
}
/// @dev Optional validation hook that fires before a mint
function _preValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a mint
function _postValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires before a burn
function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a burn
function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires before a transfer
function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a transfer
function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {}
/*************************************************************************/
/* Transfers With Amounts */
/*************************************************************************/
/// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks.
function _validateBeforeTransfer(address from, address to, uint256 tokenId, uint256 amount) internal virtual {
bool fromZeroAddress = from == address(0);
bool toZeroAddress = to == address(0);
if(fromZeroAddress && toZeroAddress) {
revert ShouldNotMintToBurnAddress();
} else if(fromZeroAddress) {
_preValidateMint(_msgSender(), to, tokenId, amount, msg.value);
} else if(toZeroAddress) {
_preValidateBurn(_msgSender(), from, tokenId, amount, msg.value);
} else {
_preValidateTransfer(_msgSender(), from, to, tokenId, amount, msg.value);
}
}
/// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks.
function _validateAfterTransfer(address from, address to, uint256 tokenId, uint256 amount) internal virtual {
bool fromZeroAddress = from == address(0);
bool toZeroAddress = to == address(0);
if(fromZeroAddress && toZeroAddress) {
revert ShouldNotMintToBurnAddress();
} else if(fromZeroAddress) {
_postValidateMint(_msgSender(), to, tokenId, amount, msg.value);
} else if(toZeroAddress) {
_postValidateBurn(_msgSender(), from, tokenId, amount, msg.value);
} else {
_postValidateTransfer(_msgSender(), from, to, tokenId, amount, msg.value);
}
}
/// @dev Optional validation hook that fires before a mint
function _preValidateMint(address caller, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a mint
function _postValidateMint(address caller, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires before a burn
function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a burn
function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires before a transfer
function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
/// @dev Optional validation hook that fires after a transfer
function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}// 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
// 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) (interfaces/IERC2981.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
* _Available since v4.5._
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}// 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);
}// 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);
}
}
}{
"remappings": [
"@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/",
"@openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/",
"forge-std/=node_modules/forge-std/",
"@manifoldxyz/creator-core-solidity/=node_modules/@manifoldxyz/creator-core-solidity/",
"solady/=node_modules/solady/src/",
"@ensdomains/=node_modules/@ensdomains/",
"@limitbreak/=node_modules/@limitbreak/",
"erc721a/=node_modules/erc721a/"
],
"optimizer": {
"enabled": true,
"runs": 10000
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "none",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "prague",
"viaIR": false
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"contract INormiesRenderer","name":"_renderer","type":"address"},{"internalType":"contract INormiesStorage","name":"_storage","type":"address"},{"internalType":"address","name":"royaltyReceiver","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"CreatorTokenBase__InvalidTransferValidatorContract","type":"error"},{"inputs":[],"name":"ExceedsMaxSupply","type":"error"},{"inputs":[],"name":"NotApprovedOrOwner","type":"error"},{"inputs":[],"name":"NotMinter","type":"error"},{"inputs":[],"name":"RescueTransferFailed","type":"error"},{"inputs":[],"name":"RescueUnauthorizedOrLocked","type":"error"},{"inputs":[],"name":"ShouldNotMintToBurnAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonExistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"autoApproved","type":"bool"}],"name":"AutomaticApprovalOfTransferValidatorSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toTokenId","type":"uint256"}],"name":"BatchMetadataUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint96","name":"feeNumerator","type":"uint96"}],"name":"DefaultRoyaltySet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"bool","name":"allowed","type":"bool"}],"name":"MinterAddressSet","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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint96","name":"feeNumerator","type":"uint96"}],"name":"TokenRoyaltySet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldValidator","type":"address"},{"indexed":false,"internalType":"address","name":"newValidator","type":"address"}],"name":"TransferValidatorUpdated","type":"event"},{"inputs":[],"name":"DEFAULT_TRANSFER_VALIDATOR","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"autoApproveTransfersFromValidator","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTransferValidationFunction","outputs":[{"internalType":"bytes4","name":"functionSignature","type":"bytes4"},{"internalType":"bool","name":"isViewFunction","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getTransferValidator","outputs":[{"internalType":"address","name":"validator","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"isApproved","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"locksToSet","type":"uint256"}],"name":"lockRescue","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"minterAddresses","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rendererContract","outputs":[{"internalType":"contract INormiesRenderer","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"rescueERC1155","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueERC6909","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"}],"name":"rescueERC721","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"rescueLocked","outputs":[{"internalType":"uint256","name":"locks","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"autoApprove","type":"bool"}],"name":"setAutomaticApprovalOfTransfersFromValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"},{"internalType":"bool[]","name":"allowed","type":"bool[]"}],"name":"setMinterAddresses","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract INormiesRenderer","name":"_renderer","type":"address"}],"name":"setRendererContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint96","name":"feeNumerator","type":"uint96"}],"name":"setRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract INormiesStorage","name":"_storage","type":"address"}],"name":"setStorageContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"transferValidator_","type":"address"}],"name":"setTransferValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signalMetadataUpdate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"storageContract","outputs":[{"internalType":"contract INormiesStorage","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000be57fc4d0c729b8e8d33b638dd441f57365e4c250000000000000000000000001b976baf51cf51f0e369c070d47fbc47a706e6020000000000000000000000003825e69bb486f2d2c0b2ac85725a0955918d5555
-----Decoded View---------------
Arg [0] : _renderer (address): 0xBe57fC4D0c729b8e8d33b638Dd441F57365e4c25
Arg [1] : _storage (address): 0x1B976bAf51cF51F0e369C070d47FBc47A706e602
Arg [2] : royaltyReceiver (address): 0x3825E69bb486f2D2C0b2aC85725a0955918D5555
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000be57fc4d0c729b8e8d33b638dd441f57365e4c25
Arg [1] : 0000000000000000000000001b976baf51cf51f0e369c070d47fbc47a706e602
Arg [2] : 0000000000000000000000003825e69bb486f2d2c0b2ac85725a0955918d5555
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Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 33 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.