Feature Tip: Add private address tag to any address under My Name Tag !
ERC-721
Overview
Max Total Supply
453 Ordinals
Holders
43
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
OrdinalschildhoodMemories
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // File: @openzeppelin/contracts/utils/structs/EnumerableSet.sol // OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } } // File: contracts/IOperatorFilterRegistry.sol pragma solidity ^0.8.13; interface IOperatorFilterRegistry { function isOperatorAllowed(address registrant, address operator) external view returns (bool); function register(address registrant) external; function registerAndSubscribe(address registrant, address subscription) external; function registerAndCopyEntries(address registrant, address registrantToCopy) external; function unregister(address addr) external; function updateOperator(address registrant, address operator, bool filtered) external; function updateOperators(address registrant, address[] calldata operators, bool filtered) external; function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external; function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external; function subscribe(address registrant, address registrantToSubscribe) external; function unsubscribe(address registrant, bool copyExistingEntries) external; function subscriptionOf(address addr) external returns (address registrant); function subscribers(address registrant) external returns (address[] memory); function subscriberAt(address registrant, uint256 index) external returns (address); function copyEntriesOf(address registrant, address registrantToCopy) external; function isOperatorFiltered(address registrant, address operator) external returns (bool); function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool); function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool); function filteredOperators(address addr) external returns (address[] memory); function filteredCodeHashes(address addr) external returns (bytes32[] memory); function filteredOperatorAt(address registrant, uint256 index) external returns (address); function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32); function isRegistered(address addr) external returns (bool); function codeHashOf(address addr) external returns (bytes32); } // File: contracts/OperatorFilterer.sol // OpenZeppelin Contracts (last updated v4.8.0) (access/Ownable2Step.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides 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} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ pragma solidity ^0.8.13; /** * @title OwnedRegistrant * @notice Ownable contract that registers itself with the OperatorFilterRegistry and administers its own entries, * to facilitate a subscription whose ownership can be transferred. */ pragma solidity ^0.8.13; contract OperatorFilterRegistryErrorsAndEvents { error CannotFilterEOAs(); error AddressAlreadyFiltered(address operator); error AddressNotFiltered(address operator); error CodeHashAlreadyFiltered(bytes32 codeHash); error CodeHashNotFiltered(bytes32 codeHash); error OnlyAddressOrOwner(); error NotRegistered(address registrant); error AlreadyRegistered(); error AlreadySubscribed(address subscription); error NotSubscribed(); error CannotUpdateWhileSubscribed(address subscription); error CannotSubscribeToSelf(); error CannotSubscribeToZeroAddress(); error NotOwnable(); error AddressFiltered(address filtered); error CodeHashFiltered(address account, bytes32 codeHash); error CannotSubscribeToRegistrantWithSubscription(address registrant); error CannotCopyFromSelf(); event RegistrationUpdated(address indexed registrant, bool indexed registered); event OperatorUpdated(address indexed registrant, address indexed operator, bool indexed filtered); event OperatorsUpdated(address indexed registrant, address[] operators, bool indexed filtered); event CodeHashUpdated(address indexed registrant, bytes32 indexed codeHash, bool indexed filtered); event CodeHashesUpdated(address indexed registrant, bytes32[] codeHashes, bool indexed filtered); event SubscriptionUpdated(address indexed registrant, address indexed subscription, bool indexed subscribed); } pragma solidity ^0.8.13; /** * @title OperatorFilterRegistry * @notice Borrows heavily from the QQL BlacklistOperatorFilter contract: * https://github.com/qql-art/contracts/blob/main/contracts/BlacklistOperatorFilter.sol * @notice This contracts allows tokens or token owners to register specific addresses or codeHashes that may be * * restricted according to the isOperatorAllowed function. */ contract OperatorFilterRegistry is IOperatorFilterRegistry, OperatorFilterRegistryErrorsAndEvents { using EnumerableSet for EnumerableSet.AddressSet; using EnumerableSet for EnumerableSet.Bytes32Set; /// @dev initialized accounts have a nonzero codehash (see https://eips.ethereum.org/EIPS/eip-1052) /// Note that this will also be a smart contract's codehash when making calls from its constructor. bytes32 constant EOA_CODEHASH = keccak256(""); mapping(address => EnumerableSet.AddressSet) private _filteredOperators; mapping(address => EnumerableSet.Bytes32Set) private _filteredCodeHashes; mapping(address => address) private _registrations; mapping(address => EnumerableSet.AddressSet) private _subscribers; /** * @notice restricts method caller to the address or EIP-173 "owner()" */ modifier onlyAddressOrOwner(address addr) { if (msg.sender != addr) { try Ownable(addr).owner() returns (address owner) { if (msg.sender != owner) { revert OnlyAddressOrOwner(); } } catch (bytes memory reason) { if (reason.length == 0) { revert NotOwnable(); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } _; } /** * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns * true if supplied registrant address is not registered. */ function isOperatorAllowed(address registrant, address operator) external view returns (bool) { address registration = _registrations[registrant]; if (registration != address(0)) { EnumerableSet.AddressSet storage filteredOperatorsRef; EnumerableSet.Bytes32Set storage filteredCodeHashesRef; filteredOperatorsRef = _filteredOperators[registration]; filteredCodeHashesRef = _filteredCodeHashes[registration]; if (filteredOperatorsRef.contains(operator)) { revert AddressFiltered(operator); } if (operator.code.length > 0) { bytes32 codeHash = operator.codehash; if (filteredCodeHashesRef.contains(codeHash)) { revert CodeHashFiltered(operator, codeHash); } } } return true; } ////////////////// // AUTH METHODS // ////////////////// /** * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner. */ function register(address registrant) external onlyAddressOrOwner(registrant) { if (_registrations[registrant] != address(0)) { revert AlreadyRegistered(); } _registrations[registrant] = registrant; emit RegistrationUpdated(registrant, true); } /** * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner. * Note that this does not remove any filtered addresses or codeHashes. * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes. */ function unregister(address registrant) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { _subscribers[registration].remove(registrant); emit SubscriptionUpdated(registrant, registration, false); } _registrations[registrant] = address(0); emit RegistrationUpdated(registrant, false); } /** * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes. */ function registerAndSubscribe(address registrant, address subscription) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration != address(0)) { revert AlreadyRegistered(); } if (registrant == subscription) { revert CannotSubscribeToSelf(); } address subscriptionRegistration = _registrations[subscription]; if (subscriptionRegistration == address(0)) { revert NotRegistered(subscription); } if (subscriptionRegistration != subscription) { revert CannotSubscribeToRegistrantWithSubscription(subscription); } _registrations[registrant] = subscription; _subscribers[subscription].add(registrant); emit RegistrationUpdated(registrant, true); emit SubscriptionUpdated(registrant, subscription, true); } /** * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another * address without subscribing. */ function registerAndCopyEntries(address registrant, address registrantToCopy) external onlyAddressOrOwner(registrant) { if (registrantToCopy == registrant) { revert CannotCopyFromSelf(); } address registration = _registrations[registrant]; if (registration != address(0)) { revert AlreadyRegistered(); } address registrantRegistration = _registrations[registrantToCopy]; if (registrantRegistration == address(0)) { revert NotRegistered(registrantToCopy); } _registrations[registrant] = registrant; emit RegistrationUpdated(registrant, true); _copyEntries(registrant, registrantToCopy); } /** * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered. */ function updateOperator(address registrant, address operator, bool filtered) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { revert CannotUpdateWhileSubscribed(registration); } EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrant]; if (!filtered) { bool removed = filteredOperatorsRef.remove(operator); if (!removed) { revert AddressNotFiltered(operator); } } else { bool added = filteredOperatorsRef.add(operator); if (!added) { revert AddressAlreadyFiltered(operator); } } emit OperatorUpdated(registrant, operator, filtered); } /** * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered. */ function updateCodeHash(address registrant, bytes32 codeHash, bool filtered) external onlyAddressOrOwner(registrant) { if (codeHash == EOA_CODEHASH) { revert CannotFilterEOAs(); } address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { revert CannotUpdateWhileSubscribed(registration); } EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrant]; if (!filtered) { bool removed = filteredCodeHashesRef.remove(codeHash); if (!removed) { revert CodeHashNotFiltered(codeHash); } } else { bool added = filteredCodeHashesRef.add(codeHash); if (!added) { revert CodeHashAlreadyFiltered(codeHash); } } emit CodeHashUpdated(registrant, codeHash, filtered); } /** * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates. */ function updateOperators(address registrant, address[] calldata operators, bool filtered) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { revert CannotUpdateWhileSubscribed(registration); } EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrant]; uint256 operatorsLength = operators.length; unchecked { if (!filtered) { for (uint256 i = 0; i < operatorsLength; ++i) { address operator = operators[i]; bool removed = filteredOperatorsRef.remove(operator); if (!removed) { revert AddressNotFiltered(operator); } } } else { for (uint256 i = 0; i < operatorsLength; ++i) { address operator = operators[i]; bool added = filteredOperatorsRef.add(operator); if (!added) { revert AddressAlreadyFiltered(operator); } } } } emit OperatorsUpdated(registrant, operators, filtered); } /** * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates. */ function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { revert CannotUpdateWhileSubscribed(registration); } EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrant]; uint256 codeHashesLength = codeHashes.length; unchecked { if (!filtered) { for (uint256 i = 0; i < codeHashesLength; ++i) { bytes32 codeHash = codeHashes[i]; bool removed = filteredCodeHashesRef.remove(codeHash); if (!removed) { revert CodeHashNotFiltered(codeHash); } } } else { for (uint256 i = 0; i < codeHashesLength; ++i) { bytes32 codeHash = codeHashes[i]; if (codeHash == EOA_CODEHASH) { revert CannotFilterEOAs(); } bool added = filteredCodeHashesRef.add(codeHash); if (!added) { revert CodeHashAlreadyFiltered(codeHash); } } } } emit CodeHashesUpdated(registrant, codeHashes, filtered); } /** * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous * subscription if present. * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case, * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be * used. */ function subscribe(address registrant, address newSubscription) external onlyAddressOrOwner(registrant) { if (registrant == newSubscription) { revert CannotSubscribeToSelf(); } if (newSubscription == address(0)) { revert CannotSubscribeToZeroAddress(); } address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration == newSubscription) { revert AlreadySubscribed(newSubscription); } address newSubscriptionRegistration = _registrations[newSubscription]; if (newSubscriptionRegistration == address(0)) { revert NotRegistered(newSubscription); } if (newSubscriptionRegistration != newSubscription) { revert CannotSubscribeToRegistrantWithSubscription(newSubscription); } if (registration != registrant) { _subscribers[registration].remove(registrant); emit SubscriptionUpdated(registrant, registration, false); } _registrations[registrant] = newSubscription; _subscribers[newSubscription].add(registrant); emit SubscriptionUpdated(registrant, newSubscription, true); } /** * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes. */ function unsubscribe(address registrant, bool copyExistingEntries) external onlyAddressOrOwner(registrant) { address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration == registrant) { revert NotSubscribed(); } _subscribers[registration].remove(registrant); _registrations[registrant] = registrant; emit SubscriptionUpdated(registrant, registration, false); if (copyExistingEntries) { _copyEntries(registrant, registration); } } /** * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr. */ function copyEntriesOf(address registrant, address registrantToCopy) external onlyAddressOrOwner(registrant) { if (registrant == registrantToCopy) { revert CannotCopyFromSelf(); } address registration = _registrations[registrant]; if (registration == address(0)) { revert NotRegistered(registrant); } if (registration != registrant) { revert CannotUpdateWhileSubscribed(registration); } address registrantRegistration = _registrations[registrantToCopy]; if (registrantRegistration == address(0)) { revert NotRegistered(registrantToCopy); } _copyEntries(registrant, registrantToCopy); } /// @dev helper to copy entries from registrantToCopy to registrant and emit events function _copyEntries(address registrant, address registrantToCopy) private { EnumerableSet.AddressSet storage filteredOperatorsRef = _filteredOperators[registrantToCopy]; EnumerableSet.Bytes32Set storage filteredCodeHashesRef = _filteredCodeHashes[registrantToCopy]; uint256 filteredOperatorsLength = filteredOperatorsRef.length(); uint256 filteredCodeHashesLength = filteredCodeHashesRef.length(); unchecked { for (uint256 i = 0; i < filteredOperatorsLength; ++i) { address operator = filteredOperatorsRef.at(i); bool added = _filteredOperators[registrant].add(operator); if (added) { emit OperatorUpdated(registrant, operator, true); } } for (uint256 i = 0; i < filteredCodeHashesLength; ++i) { bytes32 codehash = filteredCodeHashesRef.at(i); bool added = _filteredCodeHashes[registrant].add(codehash); if (added) { emit CodeHashUpdated(registrant, codehash, true); } } } } ////////////////// // VIEW METHODS // ////////////////// /** * @notice Get the subscription address of a given registrant, if any. */ function subscriptionOf(address registrant) external view returns (address subscription) { subscription = _registrations[registrant]; if (subscription == address(0)) { revert NotRegistered(registrant); } else if (subscription == registrant) { subscription = address(0); } } /** * @notice Get the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscribers(address registrant) external view returns (address[] memory) { return _subscribers[registrant].values(); } /** * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscriberAt(address registrant, uint256 index) external view returns (address) { return _subscribers[registrant].at(index); } /** * @notice Returns true if operator is filtered by a given address or its subscription. */ function isOperatorFiltered(address registrant, address operator) external view returns (bool) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredOperators[registration].contains(operator); } return _filteredOperators[registrant].contains(operator); } /** * @notice Returns true if a codeHash is filtered by a given address or its subscription. */ function isCodeHashFiltered(address registrant, bytes32 codeHash) external view returns (bool) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredCodeHashes[registration].contains(codeHash); } return _filteredCodeHashes[registrant].contains(codeHash); } /** * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription. */ function isCodeHashOfFiltered(address registrant, address operatorWithCode) external view returns (bool) { bytes32 codeHash = operatorWithCode.codehash; address registration = _registrations[registrant]; if (registration != registrant) { return _filteredCodeHashes[registration].contains(codeHash); } return _filteredCodeHashes[registrant].contains(codeHash); } /** * @notice Returns true if an address has registered */ function isRegistered(address registrant) external view returns (bool) { return _registrations[registrant] != address(0); } /** * @notice Returns a list of filtered operators for a given address or its subscription. */ function filteredOperators(address registrant) external view returns (address[] memory) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredOperators[registration].values(); } return _filteredOperators[registrant].values(); } /** * @notice Returns the set of filtered codeHashes for a given address or its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashes(address registrant) external view returns (bytes32[] memory) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredCodeHashes[registration].values(); } return _filteredCodeHashes[registrant].values(); } /** * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredOperatorAt(address registrant, uint256 index) external view returns (address) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredOperators[registration].at(index); } return _filteredOperators[registrant].at(index); } /** * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashAt(address registrant, uint256 index) external view returns (bytes32) { address registration = _registrations[registrant]; if (registration != registrant) { return _filteredCodeHashes[registration].at(index); } return _filteredCodeHashes[registrant].at(index); } /// @dev Convenience method to compute the code hash of an arbitrary contract function codeHashOf(address a) external view returns (bytes32) { return a.codehash; } } pragma solidity ^0.8.13; abstract contract OperatorFilterer { error OperatorNotAllowed(address operator); IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY = IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E); constructor(address subscriptionOrRegistrantToCopy, bool subscribe) { // If an inheriting token contract is deployed to a network without the registry deployed, the modifier // will not revert, but the contract will need to be registered with the registry once it is deployed in // order for the modifier to filter addresses. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (subscribe) { OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy); } else { if (subscriptionOrRegistrantToCopy != address(0)) { OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy); } else { OPERATOR_FILTER_REGISTRY.register(address(this)); } } } } modifier onlyAllowedOperator(address from) virtual { // Allow spending tokens from addresses with balance // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred // from an EOA. if (from != msg.sender) { _checkFilterOperator(msg.sender); } _; } modifier onlyAllowedOperatorApproval(address operator) virtual { _checkFilterOperator(operator); _; } function _checkFilterOperator(address operator) internal view virtual { // Check registry code length to facilitate testing in environments without a deployed registry. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) { revert OperatorNotAllowed(operator); } } } } // File: contracts/DefaultOperatorFilterer.sol pragma solidity ^0.8.13; /** * @title DefaultOperatorFilterer * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription. */ abstract contract DefaultOperatorFilterer is OperatorFilterer { address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6); constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {} } // File: @openzeppelin/contracts/utils/math/Math.sol // OpenZeppelin Contracts (last updated v4.8.0) (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) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 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 10, 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 * 8) < value ? 1 : 0); } } } // File: @openzeppelin/contracts/utils/Strings.sol // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @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 `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); } } // File: @openzeppelin/contracts/utils/Address.sol // OpenZeppelin Contracts (last updated v4.8.0) (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 * ==== * * [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://diligence.consensys.net/posts/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/v0.5.11/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); } } } // File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol // 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); } // File: @openzeppelin/contracts/utils/introspection/IERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) // File: @openzeppelin/contracts/utils/introspection/ERC165.sol // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) // 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); } pragma solidity ^0.8.0; /** * @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; } } // File: @openzeppelin/contracts/token/ERC721/IERC721.sol // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; /** * @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); } // File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; /** * @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); } // File: @openzeppelin/contracts/utils/Context.sol pragma solidity ^0.8.0; interface IERC721Enumerable is IERC721 { function totalSupply() external view returns (uint256); function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); function tokenByIndex(uint256 index) external view returns (uint256); } pragma solidity ^0.8.0; abstract contract ReentrancyGuard { uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } modifier nonReentrant() { require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); _status = _ENTERED; _; _status = _NOT_ENTERED; } } // 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; } } // File: @openzeppelin/contracts/token/ERC721/ERC721.sol // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; contract ERC721A is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, DefaultOperatorFilterer { using Address for address; using Strings for uint256; struct TokenOwnership { address addr; uint64 startTimestamp; } struct AddressData { uint128 balance; uint128 numberMinted; } uint256 internal currentIndex; string private _name; string private _symbol; mapping(uint256 => TokenOwnership) internal _ownerships; mapping(address => AddressData) private _addressData; mapping(uint256 => address) private _tokenApprovals; mapping(address => mapping(address => bool)) private _operatorApprovals; constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } function totalSupply() public view override returns (uint256) { return currentIndex; } function tokenByIndex(uint256 index) public view override returns (uint256) { require(index < totalSupply(), "ERC721A: global index out of bounds"); return index; } function tokenOfOwnerByIndex(address owner, uint256 index) public view override returns (uint256) { require(index < balanceOf(owner), "ERC721A: owner index out of bounds"); uint256 numMintedSoFar = totalSupply(); uint256 tokenIdsIdx; address currOwnershipAddr; unchecked { for (uint256 i; i < numMintedSoFar; i++) { TokenOwnership memory ownership = _ownerships[i]; if (ownership.addr != address(0)) { currOwnershipAddr = ownership.addr; } if (currOwnershipAddr == owner) { if (tokenIdsIdx == index) { return i; } tokenIdsIdx++; } } } revert("ERC721A: unable to get token of owner by index"); } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } function balanceOf(address owner) public view override returns (uint256) { require(owner != address(0), "ERC721A: balance query for the zero address"); return uint256(_addressData[owner].balance); } function _numberMinted(address owner) internal view returns (uint256) { require(owner != address(0), "ERC721A: number minted query for the zero address"); return uint256(_addressData[owner].numberMinted); } function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { require(_exists(tokenId), "ERC721A: owner query for nonexistent token"); unchecked { for (uint256 curr = tokenId; curr >= 0; curr--) { TokenOwnership memory ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } } revert("ERC721A: unable to determine the owner of token"); } function ownerOf(uint256 tokenId) public view override returns (address) { return ownershipOf(tokenId).addr; } function name() public view virtual override returns (string memory) { return _name; } function symbol() public view virtual override returns (string memory) { return _symbol; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } function _baseURI() internal view virtual returns (string memory) { return ""; } function approve(address to, uint256 tokenId) public virtual override onlyAllowedOperator(to) { address owner = ERC721A.ownerOf(tokenId); require(to != owner, "ERC721A: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721A: approve caller is not owner nor approved for all" ); _approve(to, tokenId, owner); } function getApproved(uint256 tokenId) public view override returns (address) { require(_exists(tokenId), "ERC721A: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } function setApprovalForAll(address operator, bool approved) public virtual override onlyAllowedOperator(operator) { require(operator != _msgSender(), "ERC721A: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } function transferFrom( address from, address to, uint256 tokenId ) public virtual override onlyAllowedOperator(from){ _transfer(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override onlyAllowedOperator(from) { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override onlyAllowedOperator(from){ _transfer(from, to, tokenId); require( _checkOnERC721Received(from, to, tokenId, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } function _exists(uint256 tokenId) internal view returns (bool) { return tokenId < currentIndex; } function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ""); } function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { _mint(to, quantity, _data, true); } function _mint( address to, uint256 quantity, bytes memory _data, bool safe ) internal { uint256 startTokenId = currentIndex; require(to != address(0), "ERC721A: mint to the zero address"); require(quantity != 0, "ERC721A: quantity must be greater than 0"); _beforeTokenTransfers(address(0), to, startTokenId, quantity); unchecked { _addressData[to].balance += uint128(quantity); _addressData[to].numberMinted += uint128(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); uint256 updatedIndex = startTokenId; for (uint256 i; i < quantity; i++) { emit Transfer(address(0), to, updatedIndex); if (safe) { require( _checkOnERC721Received(address(0), to, updatedIndex, _data), "ERC721A: transfer to non ERC721Receiver implementer" ); } updatedIndex++; } currentIndex = updatedIndex; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = ownershipOf(tokenId); bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr || getApproved(tokenId) == _msgSender() || isApprovedForAll(prevOwnership.addr, _msgSender())); require(isApprovedOrOwner, "ERC721A: transfer caller is not owner nor approved"); require(prevOwnership.addr == from, "ERC721A: transfer from incorrect owner"); require(to != address(0), "ERC721A: transfer to the zero address"); _beforeTokenTransfers(from, to, tokenId, 1); _approve(address(0), tokenId, prevOwnership.addr); unchecked { _addressData[from].balance -= 1; _addressData[to].balance += 1; _ownerships[tokenId].addr = to; _ownerships[tokenId].startTimestamp = uint64(block.timestamp); uint256 nextTokenId = tokenId + 1; if (_ownerships[nextTokenId].addr == address(0)) { if (_exists(nextTokenId)) { _ownerships[nextTokenId].addr = prevOwnership.addr; _ownerships[nextTokenId].startTimestamp = prevOwnership.startTimestamp; } } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } 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(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721A: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} } /** * @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 anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing 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); } } abstract contract Ownable2Step is Ownable { address private _pendingOwner; event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() external { address sender = _msgSender(); require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner"); _transferOwnership(sender); } } contract OwnedRegistrant is Ownable2Step { address constant registry = 0x000000000000AAeB6D7670E522A718067333cd4E; constructor(address _owner) { IOperatorFilterRegistry(registry).register(address(this)); transferOwnership(_owner); } } pragma solidity ^0.8.13; /** * @title UpdatableOperatorFilterer * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another * registrant's entries in the OperatorFilterRegistry. This contract allows the Owner to update the * OperatorFilterRegistry address via updateOperatorFilterRegistryAddress, including to the zero address, * which will bypass registry checks. * Note that OpenSea will still disable creator fee enforcement if filtered operators begin fulfilling orders * on-chain, eg, if the registry is revoked or bypassed. * @dev This smart contract is meant to be inherited by token contracts so they can use the following: * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods. * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods. */ abstract contract UpdatableOperatorFilterer { error OperatorNotAllowed(address operator); error OnlyOwner(); IOperatorFilterRegistry public operatorFilterRegistry; constructor(address _registry, address subscriptionOrRegistrantToCopy, bool subscribe) { IOperatorFilterRegistry registry = IOperatorFilterRegistry(_registry); operatorFilterRegistry = registry; // If an inheriting token contract is deployed to a network without the registry deployed, the modifier // will not revert, but the contract will need to be registered with the registry once it is deployed in // order for the modifier to filter addresses. if (address(registry).code.length > 0) { if (subscribe) { registry.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy); } else { if (subscriptionOrRegistrantToCopy != address(0)) { registry.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy); } else { registry.register(address(this)); } } } } modifier onlyAllowedOperator(address from) virtual { // Allow spending tokens from addresses with balance // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred // from an EOA. if (from != msg.sender) { _checkFilterOperator(msg.sender); } _; } modifier onlyAllowedOperatorApproval(address operator) virtual { _checkFilterOperator(operator); _; } /** * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero * address, checks will be bypassed. OnlyOwner. */ function updateOperatorFilterRegistryAddress(address newRegistry) public virtual { if (msg.sender != owner()) { revert OnlyOwner(); } operatorFilterRegistry = IOperatorFilterRegistry(newRegistry); } /** * @dev assume the contract has an owner, but leave specific Ownable implementation up to inheriting contract */ function owner() public view virtual returns (address); function _checkFilterOperator(address operator) internal view virtual { IOperatorFilterRegistry registry = operatorFilterRegistry; // Check registry code length to facilitate testing in environments without a deployed registry. if (address(registry) != address(0) && address(registry).code.length > 0) { if (!registry.isOperatorAllowed(address(this), operator)) { revert OperatorNotAllowed(operator); } } } } pragma solidity ^0.8.13; /** * @title RevokableOperatorFilterer * @notice This contract is meant to allow contracts to permanently skip OperatorFilterRegistry checks if desired. The * Registry itself has an "unregister" function, but if the contract is ownable, the owner can re-register at * any point. As implemented, this abstract contract allows the contract owner to permanently skip the * OperatorFilterRegistry checks by calling revokeOperatorFilterRegistry. Once done, the registry * address cannot be further updated. * Note that OpenSea will still disable creator fee enforcement if filtered operators begin fulfilling orders * on-chain, eg, if the registry is revoked or bypassed. */ abstract contract RevokableOperatorFilterer is UpdatableOperatorFilterer { error RegistryHasBeenRevoked(); error InitialRegistryAddressCannotBeZeroAddress(); bool public isOperatorFilterRegistryRevoked; constructor(address _registry, address subscriptionOrRegistrantToCopy, bool subscribe) UpdatableOperatorFilterer(_registry, subscriptionOrRegistrantToCopy, subscribe) { // don't allow creating a contract with a permanently revoked registry if (_registry == address(0)) { revert InitialRegistryAddressCannotBeZeroAddress(); } } function _checkFilterOperator(address operator) internal view virtual override { if (address(operatorFilterRegistry) != address(0)) { super._checkFilterOperator(operator); } } /** * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero * address, checks will be permanently bypassed, and the address cannot be updated again. OnlyOwner. */ function updateOperatorFilterRegistryAddress(address newRegistry) public override { if (msg.sender != owner()) { revert OnlyOwner(); } // if registry has been revoked, do not allow further updates if (isOperatorFilterRegistryRevoked) { revert RegistryHasBeenRevoked(); } operatorFilterRegistry = IOperatorFilterRegistry(newRegistry); } /** * @notice Revoke the OperatorFilterRegistry address, permanently bypassing checks. OnlyOwner. */ function revokeOperatorFilterRegistry() public { if (msg.sender != owner()) { revert OnlyOwner(); } // if registry has been revoked, do not allow further updates if (isOperatorFilterRegistryRevoked) { revert RegistryHasBeenRevoked(); } // set to zero address to bypass checks operatorFilterRegistry = IOperatorFilterRegistry(address(0)); isOperatorFilterRegistryRevoked = true; } } pragma solidity ^0.8.13; /** * @title RevokableDefaultOperatorFilterer * @notice Inherits from RevokableOperatorFilterer and automatically subscribes to the default OpenSea subscription. * Note that OpenSea will disable creator fee enforcement if filtered operators begin fulfilling orders * on-chain, eg, if the registry is revoked or bypassed. */ abstract contract RevokableDefaultOperatorFilterer is RevokableOperatorFilterer { address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6); constructor() RevokableOperatorFilterer(0x000000000000AAeB6D7670E522A718067333cd4E, DEFAULT_SUBSCRIPTION, true) {} } pragma solidity ^0.8.9; contract OrdinalschildhoodMemories is ERC721A, Ownable, ReentrancyGuard { using Strings for uint256; uint public price = 0.005 ether; uint public maxTx = 10; uint public maxSupply = 453; uint256 public reservedSupply = 100; string private baseURI = "ipfs://bafybeiclspolq6yudr27yucgil5aipnn3xkhygsyl2owuzva3kgre5dtye/"; bool public mintEnabled = true; uint public maxPerFree = 1; uint public totalFreeMinted = 0; uint public totalFree = 100; mapping(address => uint256) public _FreeMinted; constructor() ERC721A("Ordinals childhood Memories", "Ordinals") {} function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) { require(_exists(_tokenId),"ERC721Metadata: URI query for nonexistent token"); string memory currentBaseURI = _baseURI(); return bytes(currentBaseURI).length > 0 ? string(abi.encodePacked(currentBaseURI,Strings.toString(_tokenId),".json")) : ""; } function _baseURI() internal view virtual override returns (string memory) { return baseURI; } function Mint(uint256 count) external payable { bool MintForFree = ((totalFreeMinted < totalFree) && (_FreeMinted[msg.sender] < maxPerFree)); if (MintForFree) { require(mintEnabled, "Mint is not live yet"); require(totalSupply() + count <= maxSupply, "No more"); require(count <= maxTx, "Max per TX reached."); if(count >= (maxPerFree - _FreeMinted[msg.sender])) { require(msg.value >= (count * price) - ((maxPerFree - _FreeMinted[msg.sender]) * price), "Please send the exact ETH amount"); _FreeMinted[msg.sender] = maxPerFree; totalFreeMinted += maxPerFree; } else if(count < (maxPerFree - _FreeMinted[msg.sender])) { require(msg.value >= 0, "Please send the exact ETH amount"); _FreeMinted[msg.sender] += count; totalFreeMinted += count; } } else{ require(mintEnabled, "Mint is not live yet"); require(msg.value >= count * price, "Please send the exact ETH amount"); require(totalSupply() + count <= maxSupply, "No more"); require(count <= maxTx, "Max per TX reached."); } _safeMint(msg.sender, count); } function ReserveMint(uint256 Amount) external onlyOwner { uint256 Remaining = reservedSupply; require(totalSupply() + Amount <= maxSupply, "No more supply to be minted"); require(Remaining >= Amount, "Reserved Supply Minted"); reservedSupply = Remaining - Amount; _safeMint(msg.sender, Amount); // totalSupply() += Amount; } function toggleMinting() external onlyOwner { mintEnabled = !mintEnabled; } function setBaseUri(string memory baseuri_) public onlyOwner { baseURI = baseuri_; } function setCost(uint256 price_) external onlyOwner { price = price_; } function setmaxTx(uint256 _MaxTx) external onlyOwner { maxTx = _MaxTx; } function setMaxTotalFree(uint256 MaxTotalFree_) external onlyOwner { totalFree = MaxTotalFree_; } function setMaxPerFree(uint256 MaxPerFree_) external onlyOwner { maxPerFree = MaxPerFree_; } function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } function transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } function withdraw() external onlyOwner nonReentrant { (bool success, ) = msg.sender.call{value: address(this).balance}(""); require(success, "Transfer failed."); } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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IOperatorFilterRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"Amount","type":"uint256"}],"name":"ReserveMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_FreeMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","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":"getApproved","outputs":[{"internalType":"address","name":"","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":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerFree","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTx","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mintEnabled","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":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reservedSupply","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":"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":"string","name":"baseuri_","type":"string"}],"name":"setBaseUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"price_","type":"uint256"}],"name":"setCost","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"MaxPerFree_","type":"uint256"}],"name":"setMaxPerFree","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"MaxTotalFree_","type":"uint256"}],"name":"setMaxTotalFree","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MaxTx","type":"uint256"}],"name":"setmaxTx","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"toggleMinting","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"totalFree","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalFreeMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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