Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "./interfaces/DepositInterface.sol";
import "./lib/ConfirmedOwner.sol";
import {DepositItem} from "./lib/DepositStructs.sol";

/**
 * @title DepositHelper
 * @notice DepositHelper is a utility contract for transferring
 *         ERC721 items in bulk to a fixed recipient.
 */
contract Deposit is DepositInterface, ConfirmedOwner {
  // Deposit enabled status
  bool public isEnabled;
  // recipient
  address public recipient;

  /**
   * @dev Reverts if the deposit is not enabled
   */
  modifier checkEnabled() {
    require(isEnabled, "Deposit suspended");
    _;
  }

  /**
   * @dev Set the supplied recipient.
   *
   *
   * @param _recipient The recipient address, used to receive
   *                          ERC721 tokens.
   * @param _owner The contract owner address.
   */
  constructor(address _recipient, address _owner) ConfirmedOwner(_owner) {
    recipient = _recipient;
    isEnabled = true;
  }

  /**
   * @dev Update recipient
   * @param _recipient  The new recipient.
   */
  function updateRecipient(address _recipient) external override onlyOwner {
    require(_recipient != recipient, "Not changed");
    require(_recipient != address(0), "Cannot set recipient to zero");
    address oldRecipient = recipient;
    recipient = _recipient;
    emit UpdateRecipient(oldRecipient, recipient);
  }

  /**
   * @notice Enable deposit
   */
  function enableDeposit() external override onlyOwner {
    if (!isEnabled) {
      isEnabled = true;

      emit EnableDeposit();
    }
  }

  /**
   * @notice Disable deposit
   */
  function disableDeposit() external override onlyOwner {
    if (isEnabled) {
      isEnabled = false;

      emit DisableDeposit();
    }
  }

  /**
   * @notice Transfer multiple ERC721 items to
   *         specified recipients.
   *
   * @param items      The items to transfer to an intended recipient.
   * @param requestId An optional request id from client.
   */
  function bulkDeposit(DepositItem[] calldata items, uint256 requestId) external override checkEnabled {
    require(items.length > 0, "Deposit items cannot be empty");
    // Perform transfers.
    // Iterate over each item in the items to perform ERC721 transfer.
    for (uint256 i = 0; i < items.length; ++i) {
      // Retrieve the item from the transfers.
      DepositItem calldata item = items[i];
      // Transfer ERC721 token.
      IERC721(item.token).safeTransferFrom(msg.sender, recipient, item.identifier);
    }

    // emit bulk deposit event
    emit BulkDeposit(requestId);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "./ConfirmedOwnerWithProposal.sol";

/**
 * @title The ConfirmedOwner contract
 * @notice A contract with helpers for basic contract ownership.
 */
contract ConfirmedOwner is ConfirmedOwnerWithProposal {
  constructor(address newOwner) ConfirmedOwnerWithProposal(newOwner, address(0)) {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import {DepositItem} from "../lib/DepositStructs.sol";

interface DepositInterface {
  /**
   * @dev Emit an event when the recipient is updated.
   *
   * @param from The old recipient
   * @param to The new recipient
   */
  event UpdateRecipient(address indexed from, address indexed to);

  /**
   * @dev Emit an event when the deposit is enabled.
   */
  event EnableDeposit();

  /**
   * @dev Emit an event when the deposit is disabled.
   */
  event DisableDeposit();

  /**
   * @dev Emit an event when the batch transfer is successful.
   *
   * @param requestId The request id from client
   */
  event BulkDeposit(uint256 indexed requestId);

  /**
   * @notice Update recipient
   *
   * @param recipient  The new recipient
   */
  function updateRecipient(address recipient) external;

  /**
   * @notice Enable deposit
   */
  function enableDeposit() external;

  /**
   * @notice Disable deposit
   */
  function disableDeposit() external;

  /**
   * @notice Deposit multiple items.
   *
   * @param items The items to transfer.
   * @param requestId  The request id from client.
   */
  function bulkDeposit(DepositItem[] calldata items, uint256 requestId) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

/**
 * @dev A DepositItem specifies token address, token identifier to be
 *      transferred via the Deposit.
 */
struct DepositItem {
  address token;
  uint256 identifier;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: 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 Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "../interfaces/OwnableInterface.sol";

/**
 * @title The ConfirmedOwner contract
 * @notice A contract with helpers for basic contract ownership.
 */
contract ConfirmedOwnerWithProposal is OwnableInterface {
  address private s_owner;
  address private s_pendingOwner;

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    require(newOwner != address(0), "Cannot set owner to zero");

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /**
   * @notice Allows an owner to begin transferring ownership to a new address,
   * pending.
   */
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /**
   * @notice Allows an ownership transfer to be completed by the recipient.
   */
  function acceptOwnership() external override {
    require(msg.sender == s_pendingOwner, "Must be proposed owner");

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /**
   * @notice Get the current owner
   */
  function owner() public view override returns (address) {
    return s_owner;
  }

  /**
   * @notice validate, transfer ownership, and emit relevant events
   */
  function _transferOwnership(address to) private {
    require(to != msg.sender, "Cannot transfer to self");

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /**
   * @notice Reverts if called by anyone other than the contract owner.
   */
  modifier onlyOwner() {
    require(msg.sender == s_owner, "Only callable by owner");
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

interface OwnableInterface {
  function owner() external returns (address);

  function transferOwnership(address recipient) external;

  function acceptOwnership() 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);
}

{
  "viaIR": true,
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"address","name":"_owner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"requestId","type":"uint256"}],"name":"BulkDeposit","type":"event"},{"anonymous":false,"inputs":[],"name":"DisableDeposit","type":"event"},{"anonymous":false,"inputs":[],"name":"EnableDeposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"UpdateRecipient","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"identifier","type":"uint256"}],"internalType":"struct DepositItem[]","name":"items","type":"tuple[]"},{"internalType":"uint256","name":"requestId","type":"uint256"}],"name":"bulkDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"disableDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"recipient","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"}],"name":"updateRecipient","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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