Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.11;

//  ==========  External imports    ==========
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/MulticallUpgradeable.sol";

//  ==========  Internal imports    ==========

import "../interfaces/airdrop/IAirdropERC721.sol";

//  ==========  Features    ==========
import "../extension/Ownable.sol";

contract AirdropERC721 is Initializable, Ownable, ReentrancyGuardUpgradeable, MulticallUpgradeable, IAirdropERC721 {
    /*///////////////////////////////////////////////////////////////
                            State variables
    //////////////////////////////////////////////////////////////*/

    bytes32 private constant MODULE_TYPE = bytes32("AirdropERC721");
    uint256 private constant VERSION = 1;

    /*///////////////////////////////////////////////////////////////
                    Constructor + initializer logic
    //////////////////////////////////////////////////////////////*/

    constructor() initializer {}

    /// @dev Initiliazes the contract, like a constructor.
    function initialize(address _defaultAdmin) external initializer {
        _setupOwner(_defaultAdmin);
        __ReentrancyGuard_init();
    }

    /*///////////////////////////////////////////////////////////////
                        Generic contract logic
    //////////////////////////////////////////////////////////////*/

    /// @dev Returns the type of the contract.
    function contractType() external pure returns (bytes32) {
        return MODULE_TYPE;
    }

    /// @dev Returns the version of the contract.
    function contractVersion() external pure returns (uint8) {
        return uint8(VERSION);
    }

    /*///////////////////////////////////////////////////////////////
                            airdrop logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice          Lets contract-owner send ERC721 tokens to a list of addresses.
     *  @dev             The token-owner should approve target tokens to Airdrop contract,
     *                   which acts as operator for the tokens.
     *
     *  @param _tokenAddress    Contract address of ERC721 tokens to air-drop.
     *  @param _tokenOwner      Address from which to transfer tokens.
     *  @param _recipients      List of recipient addresses for the air-drop.
     *  @param _tokenIds        ERC721 token-Ids of tokens to drop.
     */
    function airdrop(
        address _tokenAddress,
        address _tokenOwner,
        address[] memory _recipients,
        uint256[] memory _tokenIds
    ) external nonReentrant onlyOwner {
        uint256 len = _tokenIds.length;
        require(len == _recipients.length, "length mismatch");

        IERC721 token = IERC721(_tokenAddress);

        for (uint256 i = 0; i < len; i++) {
            token.safeTransferFrom(_tokenOwner, _recipients[i], _tokenIds[i]);
        }
    }

    /*///////////////////////////////////////////////////////////////
                        Miscellaneous
    //////////////////////////////////////////////////////////////*/

    /// @dev Returns whether owner can be set in the given execution context.
    function _canSetOwner() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IOwnable.sol";

/**
 *  @title   Ownable
 *  @notice  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *           who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
 *           information about who the contract's owner is.
 */

abstract contract Ownable is IOwnable {
    /// @dev Owner of the contract (purpose: OpenSea compatibility)
    address private _owner;

    /// @dev Reverts if caller is not the owner.
    modifier onlyOwner() {
        if (msg.sender != _owner) {
            revert("Not authorized");
        }
        _;
    }

    /**
     *  @notice Returns the owner of the contract.
     */
    function owner() public view override returns (address) {
        return _owner;
    }

    /**
     *  @notice Lets an authorized wallet set a new owner for the contract.
     *  @param _newOwner The address to set as the new owner of the contract.
     */
    function setOwner(address _newOwner) external override {
        if (!_canSetOwner()) {
            revert("Not authorized");
        }
        _setupOwner(_newOwner);
    }

    /// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.
    function _setupOwner(address _newOwner) internal {
        address _prevOwner = _owner;
        _owner = _newOwner;

        emit OwnerUpdated(_prevOwner, _newOwner);
    }

    /// @dev Returns whether owner can be set in the given execution context.
    function _canSetOwner() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *  who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
 *  information about who the contract's owner is.
 */

interface IOwnable {
    /// @dev Returns the owner of the contract.
    function owner() external view returns (address);

    /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
    function setOwner(address _newOwner) external;

    /// @dev Emitted when a new Owner is set.
    event OwnerUpdated(address indexed prevOwner, address indexed newOwner);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.11;

/**
 *  Thirdweb's `Airdrop` contracts provide a lightweight and easy to use mechanism
 *  to drop tokens.
 *
 *  `AirdropERC721` contract is an airdrop contract for ERC721 tokens. It follows a
 *  push mechanism for transfer of tokens to intended recipients.
 */

interface IAirdropERC721 {
    /**
     *  @notice          Lets contract-owner send ERC721 tokens to a list of addresses.
     *  @dev             The token-owner should approve target tokens to Airdrop contract,
     *                   which acts as operator for the tokens.
     *
     *  @param _tokenAddress    Contract address of ERC721 tokens to air-drop.
     *  @param _tokenOwner      Address from which to transfer tokens.
     *  @param _recipients      List of recipient addresses for the air-drop.
     *  @param _tokenIds        ERC721 token-Ids of tokens to drop.
     */
    function airdrop(
        address _tokenAddress,
        address _tokenOwner,
        address[] memory _recipients,
        uint256[] memory _tokenIds
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
        // contract may have been reentered.
        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} modifier, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)

pragma solidity ^0.8.0;

import "./AddressUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides a function to batch together multiple calls in a single external call.
 *
 * _Available since v4.1._
 */
abstract contract MulticallUpgradeable is Initializable {
    function __Multicall_init() internal onlyInitializing {
    }

    function __Multicall_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Receives and executes a batch of function calls on this contract.
     */
    function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
        results = new bytes[](data.length);
        for (uint256 i = 0; i < data.length; i++) {
            results[i] = _functionDelegateCall(address(this), data[i]);
        }
        return results;
    }

    /**
     * @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) private returns (bytes memory) {
        require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
     * @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;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 490
  },
  "evmVersion": "london",
  "remappings": [
    ":@chainlink/contracts/src/=node_modules/@chainlink/contracts/src/",
    ":@ds-test/=lib/ds-test/src/",
    ":@openzeppelin/=node_modules/@openzeppelin/",
    ":@std/=lib/forge-std/src/",
    ":contracts/=contracts/",
    ":ds-test/=lib/ds-test/src/",
    ":erc721a-upgradeable/=node_modules/erc721a-upgradeable/",
    ":erc721a/=node_modules/erc721a/",
    ":forge-std/=lib/forge-std/src/"
  ],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"prevOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerUpdated","type":"event"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"address","name":"_tokenOwner","type":"address"},{"internalType":"address[]","name":"_recipients","type":"address[]"},{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"airdrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractType","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"contractVersion","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_defaultAdmin","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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