Contract Address Details

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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {Web3EntryBase} from "./Web3EntryBase.sol";
// solhint-disable-next-line no-empty-blocks
contract Web3Entry is Web3EntryBase {
}
        
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;
    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }
    /**
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
          
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
interface IMintModule4Note {
    /**
     * @notice  Initialize the MintModule for a specific note.
     * @param   characterId  The character ID of the note to initialize.
     * @param   noteId  The note ID to initialize.
     * @param   data  The data passed from the user to be decoded.
     * @return  bytes  The returned data of calling initializeMintModule.
     */
    function initializeMintModule(
        uint256 characterId,
        uint256 noteId,
        bytes calldata data
    ) external returns (bytes memory);
    /**
     * @notice Processes the mint logic. <br>
     * Triggered when the `mintNote` of web3Entry is called, if mint module of note is set.
     * @param   to  The receive address of the NFT.
     * @param   characterId  The character ID of the note owner.
     * @param   noteId  The note ID.
     * @param   data  The data passed from the user to be decoded.
     */
    function processMint(
        address to,
        uint256 characterId,
        uint256 noteId,
        bytes calldata data
    ) external;
}
          
 
 
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// SPDX-License-Identifier: MIT
// solhint-disable private-vars-leading-underscore
pragma solidity 0.8.18;
import {Events} from "./Events.sol";
import {DataTypes} from "./DataTypes.sol";
import {OP} from "./OP.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
library OperatorLogic {
    using EnumerableSet for EnumerableSet.AddressSet;
    /**
     * @notice  Grants permission to a given operator for a character.
     * @param   characterId  The ID of the character to set operator for.
     * @param   operator  The operator address to set.
     * @param   permissionBitMap  The permission bitmap for the operator.
     */
    function grantOperatorPermissions(
        uint256 characterId,
        address operator,
        uint256 permissionBitMap,
        mapping(uint256 => EnumerableSet.AddressSet) storage _operatorsByCharacter,
        mapping(uint256 => mapping(address => uint256)) storage _operatorsPermissionBitMap
    ) external {
        if (permissionBitMap == 0) {
            _operatorsByCharacter[characterId].remove(operator);
        } else {
            _operatorsByCharacter[characterId].add(operator);
        }
        uint256 bitmap = _bitmapFilter(permissionBitMap);
        _operatorsPermissionBitMap[characterId][operator] = bitmap;
        emit Events.GrantOperatorPermissions(characterId, operator, bitmap);
    }
    /**
     @notice Sets blocklist and allowlist for a specific note. Blocklist and allowlist are overwritten every time.
     @param characterId The character ID of the note owner.
     @param noteId The note ID to grant.
     @param blocklist The addresses list of blocked operators.
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
interface IMintNFT {
    /**
     * @notice Initialize the mint nft.
     * @param characterId_  The character ID of the note to initialize.
     * @param noteId_  The note ID to initialize.
     * @param web3Entry_  The address of web3Entry contract.
     * @param name_ The name to set for this NFT.
     * @param symbol_ The symbol to set for this NFT.
     */
    function initialize(
        uint256 characterId_,
        uint256 noteId_,
        address web3Entry_,
        string calldata name_,
        string calldata symbol_
    ) external;
    /**
     * @notice Mints a note NFT to the specified address.
     * This can only be called by web3Entry, and is called upon note.
     * @param to The address to mint the NFT to.
     * @return uint256 The minted token ID.
     */
    function mint(address to) external returns (uint256);
    /**
     * @notice Changes the royalty percentage of specific token ID for secondary sales.
     * Can only be called by character owner of note.
     * @param tokenId The token ID to set.
     * @param recipient The receive address.
     * @param fraction The royalty percentage measured in basis points. Each basis point represents 0.01%.
     */
    function setTokenRoyalty(uint256 tokenId, address recipient, uint96 fraction) external;
    /**
     * @notice Changes the default royalty percentage for secondary sales.
     * Can only be called by character owner of note.
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);
    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);
    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}
          
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {DataTypes} from "../libraries/DataTypes.sol";
interface ILinklist {
    /**
     * @notice Initializes the contract.
     * @param name_ The name of the token.
     * @param symbol_ The symbol of the token.
     * @param web3Entry_ The address of the Web3Entry contract.
     */
    function initialize(
        string calldata name_,
        string calldata symbol_,
        address web3Entry_
    ) external;
    /**
     * @notice Mints a Linklist NFT to the specified character with linkType.
     * This can only be called by web3Entry.
     * @param characterId The character ID to mint to.
     * @param linkType  The type of link.
     * @return tokenId The minted token ID.
     */
    function mint(uint256 characterId, bytes32 linkType) external returns (uint256 tokenId);
    /**
     * @notice Burns a Linklist NFT.
     * @dev Only web3Entry can burn the Linklist NFT.
     * @param tokenId The token ID to burn.
     */
    function burn(uint256 tokenId) external;
    /**
     * @notice Sets URI for a linklist.
     * @dev You can set any URI for your linklist, and the functionality of this URI
     * is undetermined and expandable. One scenario that comes to mind is setting a cover for your liked notes
     * or following list in your bookmarks.
     * @param tokenId The token ID to set URI.
     * @param uri The new URI to set.
 
 
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// SPDX-License-Identifier: MIT
// solhint-disable private-vars-leading-underscore
pragma solidity 0.8.18;
import {DataTypes} from "./DataTypes.sol";
import {Events} from "./Events.sol";
import {ILinkModule4Note} from "../interfaces/ILinkModule4Note.sol";
import {IMintModule4Note} from "../interfaces/IMintModule4Note.sol";
import {IMintNFT} from "../interfaces/IMintNFT.sol";
import {Clones} from "@openzeppelin/contracts/proxy/Clones.sol";
import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
library PostLogic {
    using Strings for uint256;
    function postNoteWithLink(
        DataTypes.PostNoteData calldata vars,
        uint256 noteId,
        bytes32 linkItemType,
        bytes32 linkKey,
        bytes calldata data,
        mapping(uint256 => mapping(uint256 => DataTypes.Note)) storage _noteByIdByCharacter
    ) external {
        uint256 characterId = vars.characterId;
        DataTypes.Note storage note = _noteByIdByCharacter[characterId][noteId];
        // save note
        note.contentUri = vars.contentUri;
        if (linkItemType != bytes32(0)) {
            note.linkItemType = linkItemType;
            note.linkKey = linkKey;
        }
        // init link module
        _setLinkModule4Note(
            characterId,
            noteId,
            vars.linkModule,
            vars.linkModuleInitData,
            _noteByIdByCharacter
        );
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.0;
import "../Strings.sol";
/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }
    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);
    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}
          
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/Address.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.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * 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]
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
          
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }
    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }
    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }
    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
interface ILinkModule4Note {
    function initializeLinkModule(
        uint256 characterId,
        uint256 noteId,
        bytes calldata data
    ) external returns (bytes memory);
    function processLink(
        address caller,
        uint256 characterId,
        uint256 noteId,
        bytes calldata data
    ) external;
}
          
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);
    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);
    /**
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}
          
 
 
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// 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);
}
          
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
/// @dev Character ID not exists
error ErrCharacterNotExists(uint256 characterId);
/// @dev Not owner of address
error ErrNotAddressOwner();
/// @dev Caller is not the owner of character
error ErrNotCharacterOwner();
/// @dev Note has been locked
error ErrNoteLocked();
/// @dev Handle does not exist
error ErrHandleExists();
/// @dev Social token address does not exist
error ErrSocialTokenExists();
/// @dev Handle length too long or too short
error ErrHandleLengthInvalid();
/// @dev Handle contains invalid characters
error ErrHandleContainsInvalidCharacters();
/// @dev  Operator has not enough permission for this character
error ErrNotEnoughPermission();
/// @dev Operator has not enough permissions for this note
error ErrNotEnoughPermissionForThisNote();
/// @dev Target address already has primary character
error ErrTargetAlreadyHasPrimaryCharacter();
/// @dev Note has been deleted
error ErrNoteIsDeleted();
/// @dev Note does not exist
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {
    IERC721Enumerable
} from "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol";
import {ERC721} from "./ERC721.sol";
import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;
    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;
    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(IERC165, ERC721) returns (bool) {
        return
            interfaceId == type(IERC721Enumerable).interfaceId ||
            super.supportsInterface(interfaceId);
    }
    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(
        address owner,
        uint256 index
    ) public view virtual override returns (uint256) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// solhint-disable  private-vars-leading-underscore
pragma solidity 0.8.18;
import {Events} from "./Events.sol";
import {ILinklist} from "../interfaces/ILinklist.sol";
import {ILinkModule4Character} from "../interfaces/ILinkModule4Character.sol";
import {ILinkModule4Note} from "../interfaces/ILinkModule4Note.sol";
import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
library LinkLogic {
    using EnumerableSet for EnumerableSet.Bytes32Set;
    /**
     * @notice  Links any characterId.
     * @param   fromCharacterId  The character ID to sponsor a link action.
     * @param   toCharacterId  The character ID to be linked.
     * @param   linkType  linkType, like “follow”.
     * @param   data  The data to pass to the link module, if any.
     * @param   linklist  The linklist contract address.
     * @param   linkModule  The linkModule address of the character to link.
     */
    function linkCharacter(
        uint256 fromCharacterId,
        uint256 toCharacterId,
        bytes32 linkType,
        bytes memory data,
        address linklist,
        address linkModule,
        mapping(uint256 => mapping(bytes32 => uint256)) storage _attachedLinklists
    ) external {
        address linker = IERC721(address(this)).ownerOf(fromCharacterId);
        uint256 linklistId = _mintLinklist(fromCharacterId, linkType, linklist, _attachedLinklists);
        // add to link list
        ILinklist(linklist).addLinkingCharacterId(linklistId, toCharacterId);
        // process link module
        if (linkModule != address(0)) {
            try
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Multicall.sol)
pragma solidity ^0.8.0;
import "./Address.sol";
/**
 * @dev Provides a function to batch together multiple calls in a single external call.
 *
 * _Available since v4.1._
 */
abstract contract Multicall {
    /**
     * @dev Receives and executes a batch of function calls on this contract.
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    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] = Address.functionDelegateCall(address(this), data[i]);
        }
        return results;
    }
}
          
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {DataTypes} from "../libraries/DataTypes.sol";
interface IWeb3Entry {
    /**
     * @notice Initializes the Web3Entry.
     * @param name_ The name to set for the web3Entry character NFT.
     * @param symbol_ The symbol to set for the web3Entry character NFT.
     * @param linklist_ The address of linklist contract to set.
     * @param mintNFTImpl_ The address of mintNFTImpl contract to set.
     * @param periphery_ The address of periphery contract to set.
     * @param newbieVilla_ The address of newbieVilla contract to set.
     */
    function initialize(
        string calldata name_,
        string calldata symbol_,
        address linklist_,
        address mintNFTImpl_,
        address periphery_,
        address newbieVilla_
    ) external;
    /**
     * This method creates a character with the given parameters to the given address.
     *
     * @param vars The CreateCharacterData struct containing the following parameters:
     * `to`: The address receiving the character.<br>
     * `handle`: The handle to set for the character.<br>
     * `uri`: The URI to set for the character metadata.<br>
     * `linkModule`: The link module to use, can be the zero address.<br>
     * `linkModuleInitData`: The link module initialization data, if any.<br>
     */
    function createCharacter(
        DataTypes.CreateCharacterData calldata vars
    ) external returns (uint256 characterId);
    /**
     * @notice  Sets new handle for a given character.
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
interface ILinkModule4Character {
    function initializeLinkModule(
        uint256 characterId,
        bytes calldata data
    ) external returns (bytes memory);
    function processLink(address caller, uint256 characterId, bytes calldata data) external;
}
          
 
 
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
library Events {
    event BaseInitialized(string name, string symbol, uint256 timestamp);
    event Web3EntryInitialized(uint256 timestamp);
    event LinklistNFTInitialized(uint256 timestamp);
    event MintNFTInitialized(uint256 characterId, uint256 noteId, uint256 timestamp);
    event CharacterCreated(
        uint256 indexed characterId,
        address indexed creator,
        address indexed to,
        string handle,
        uint256 timestamp
    );
    event SetPrimaryCharacterId(
        address indexed account,
        uint256 indexed characterId,
        uint256 indexed oldCharacterId
    );
    event SetHandle(address indexed account, uint256 indexed characterId, string newHandle);
    event SetSocialToken(
        address indexed account,
        uint256 indexed characterId,
        address indexed tokenAddress
    );
    event GrantOperatorPermissions(
        uint256 indexed characterId,
        address indexed operator,
        uint256 permissionBitMap
    );
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// solhint-disable  private-vars-leading-underscore
pragma solidity 0.8.18;
import {DataTypes} from "./DataTypes.sol";
import {Events} from "./Events.sol";
import {ILinkModule4Character} from "../interfaces/ILinkModule4Character.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
library CharacterLogic {
    using EnumerableSet for EnumerableSet.Bytes32Set;
    /**
     * @notice  Creates a character.
     * @param   to  The address to mint the character to.
     * @param   handle  The handle to set for the new character.
     * @param   uri  The URI to set for the new character’s metadata.
     * @param   linkModule  The link module to set for the new character or the zero address.
     * @param   linkModuleInitData  Arbitrary data to be decoded in the link module for initialization.
     * @param   characterId The ID of the new character.
     */
    function createCharacter(
        address to,
        string memory handle,
        string memory uri,
        address linkModule,
        bytes memory linkModuleInitData,
        uint256 characterId,
        mapping(bytes32 => uint256) storage _characterIdByHandleHash,
        mapping(uint256 => DataTypes.Character) storage _characterById
    ) external {
        bytes32 handleHash = keccak256(bytes(handle));
        _characterIdByHandleHash[handleHash] = characterId;
        _characterById[characterId].characterId = characterId;
        _characterById[characterId].handle = handle;
        _characterById[characterId].uri = uri;
        // init link module
        if (linkModule != address(0)) {
            _characterById[characterId].linkModule = linkModule;
 
 
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }
    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }
    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }
    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// solhint-disable contract-name-camelcase
pragma solidity 0.8.18;
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
/**
 * @title DataTypes
 * @notice A standard library of data types.
 */
library DataTypes {
    struct MigrateData {
        address account;
        string handle;
        string uri;
        address[] toAddresses;
        bytes32 linkType;
    }
    struct CreateCharacterData {
        address to;
        string handle;
        string uri;
        address linkModule;
        bytes linkModuleInitData;
    }
    struct createThenLinkCharacterData {
        uint256 fromCharacterId;
        address to;
        bytes32 linkType;
    }
    struct linkNoteData {
        uint256 fromCharacterId;
        uint256 toCharacterId;
        uint256 toNoteId;
        bytes32 linkType;
        bytes data;
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {ERC721} from "./ERC721.sol";
import {ERC721Enumerable} from "./ERC721Enumerable.sol";
import {Events} from "../libraries/Events.sol";
abstract contract NFTBase is ERC721Enumerable {
    function _initialize(string calldata name, string calldata symbol) internal {
        ERC721.__ERC721_Init(name, symbol);
        emit Events.BaseInitialized(name, symbol, block.timestamp);
    }
    // solhint-disable ordering
    function burn(uint256 tokenId) public virtual {
        require(_isApprovedOrOwner(msg.sender, tokenId), "NFTBase: NotOwnerOrApproved");
        _burn(tokenId);
    }
}
          
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
// solhint-disable private-vars-leading-underscore
pragma solidity 0.8.18;
/**
* In Crossbell's operator system, every uint8 stands for a single method in Web3Entry.sol. <br>
* For most cases, we recommend simply granting operators the `OPERATOR_SIGN_PERMISSION_BITMAP`,
* which gives operator full permissions aside from owner permissions and future permissions, but for
* those who're more aware of access control, the custom permission bitmap is all yours,
* and you can find every customizable methods below. <br>
* `OPERATOR_SIGN_PERMISSION_BITMAP` have access to all methods in `OPERATOR_SYNC_PERMISSION_BITMAP`
* plus more permissions for signing. <br>
* Permissions are laid out in a increasing order of power.
* so the bitmap looks like this:
<table>
    <colgroup>
        <col style="width: 25%">
        <col style="width: 25%">
        <col style="width: 25%">
        <col style="width: 25%">
    </colgroup>
    <tr>
        <td>operator sync</td>
        <td>operator sign</td>
        <td>future reserved</td>
        <td>owner</td>
    <tr>
    <tr>
        <td>[255 - 236]</td>
        <td>[235 - 176]</td>
        <td>[175 - 21]</td>
        <td>[20 - 0]</td>
    <tr>
</table>
*/
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;
import {IWeb3Entry} from "./interfaces/IWeb3Entry.sol";
import {ILinklist} from "./interfaces/ILinklist.sol";
import {NFTBase} from "./base/NFTBase.sol";
import {Web3EntryStorage} from "./storage/Web3EntryStorage.sol";
import {Web3EntryExtendStorage} from "./storage/Web3EntryExtendStorage.sol";
import {DataTypes} from "./libraries/DataTypes.sol";
import {Constants} from "./libraries/Constants.sol";
import {Events} from "./libraries/Events.sol";
import {CharacterLogic} from "./libraries/CharacterLogic.sol";
import {PostLogic} from "./libraries/PostLogic.sol";
import {OperatorLogic} from "./libraries/OperatorLogic.sol";
import {LinkLogic} from "./libraries/LinkLogic.sol";
import {LinklistLogic} from "./libraries/LinklistLogic.sol";
import {OP} from "./libraries/OP.sol";
import {
    ErrSocialTokenExists,
    ErrHandleExists,
    ErrNotCharacterOwner,
    ErrNotEnoughPermission,
    ErrNotEnoughPermissionForThisNote,
    ErrCharacterNotExists,
    ErrNoteIsDeleted,
    ErrNoteNotExists,
    ErrNoteLocked,
    ErrHandleLengthInvalid,
    ErrHandleContainsInvalidCharacters,
    ErrSignatureExpired,
    ErrSignatureInvalid,
    ErrTokenNotExists
} from "./libraries/Error.sol";
import {Initializable} from "@openzeppelin/contracts/proxy/utils/Initializable.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import {Multicall} from "@openzeppelin/contracts/utils/Multicall.sol";
import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
contract Web3EntryBase is
    IWeb3Entry,
 
 
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