RIGHT CLICK SAVE AS CC0

// SPDX-License-Identifier: MIT

/// G&@@@@@7!!~G@@@7~!!!JGB@@@Y^G&@&~Y@&7!!YG#@@@@@B~!!?7JYY7~!!!7Y5#@G~!!!!GGG&@@@@@7~G@@@@@@@@@@@@&!!~&@@@@G~~~~&@@G^J@@@@@@@@&
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/// !?J5&&&J?!~JPPPG&J????JPPPB7?JJJPPPG@@@@@@@@&&@@@@@@@@&@&&@@@@&@@@@@@@@@@@&&&&#G5?!~~!!~!!!J5BP!5&&&Y!B@@@@@Y?&@@@@@&&&5?G&&#
/// ?#@#??J&@57???7!J@@@@@#!!!?5#@@&?7!7&@&&&@@@&&&&&&@&&@&&&&&@@@&&&@@&@@@&@@&@@@@@@&&BY7!!!!!!!~7?J!!!PB#@&@@@&&@@@@@#???&@G~!J
/// @5!Y@@@?!&@@@@&5@@@@B!7!!!JGGGG#@#~7&@&&&@@&&@@&@&&@&&@@&&&@@&&@@&&@@@&&&&&@&&&&@@@@@&BY!!!!!!!!!!!~B@B~~G@@?!&@@B~J@@@@@G~~?
/// @Y^J@@@7~PB&@@&P&@@@G~!7?!B&BGGGG7!G&&&&@@@@@&&@@@&@@&@&&@@@@@@&@&&&@@&&&@&@&&&&&@@&&@@@&5!!!!!!!7?7JG#PPGGG7~5BGGGGBBG@@#JY5
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/// !5G#@@@GG@@&GGJJ?7!~G@@@@@Y~!!~J&@&&@&&&@@&@@@&@@&&&&&&&@&&@@&&@&@@@&@&&@@&&&@@@@&@@@&&&&&&@@&Y7!!!7!!!!G@@@7!YP5&@@@@@@@B!!J
/// P&@&??J&@@@@@@Y~~B@@G7YBBG?!!~5&@@@@&&&&&&&@@@&&&@@&@&&&@&&&&@@@@&&&&@@&@@@&&&&@&&&@@&&&@@&&&&&G7!!!!!7!?J?J&&Y!?P7YBBB@@@&&&
/// ?&@&!~7@@GJ#@@Y!7P@@B~J&@B!!!P&@&&@&&@@&&@@&@@@&@&&@&&@@@@&&&@@&@&&&&&&@&@@@@&@@@&&&@@&@@&&@@@&@&5!!!!7!!!!?5Y&Y!G55GGGBB&@@&
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/// ?#@#777??&@B???!!!!!JPG@G~7#@&@&&&&@&@&@&&@&#BB##&&&&@@&&@@@@@@@@@&@@&&@@&&&@&&@@@@&@@@&&@@&@@@&@&#5~!!!!!!!G@Y!!G@&!!!&@G~!7
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/// !!!!~~~!~&@&PPG@@@@@P~?&@&@&@@&&@&&@&GYJ7!!!!!!~!!7!!!!!!!!7?5YYJPGGG&@&&&@&&&@@@&@&@&&&@&&&&&@@@&!!7!!!!!!!Y@Y~!?@&!!~#@@@@@
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/// ??7YBBB&@5?YPPG@@77&@@@@&&@&&@@@@&@@&7!?7~!!!~!!!!!~~!!!!~!!!!!!!~!!!~5&@@&@&&@@&@@@@@@&@@@&&@@@@#!!!!!!!!!7!PBBB5@@@@@@@G~~~
/// @@&@@@@?!#@G!!7&&75@@@&@&@&&&@&@&@@@&77J555J77!!!!!PBBBG5J?!7!!!!!!~!!?G#&&@@&@&@@@&@@&&@&@&&&&@@#!!!!!!!7!!!5&@@#@&7??7!7!!!
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/// &BGGGGP!~JYPGGGGB5!~!G@&&@&&@@@@@@&PPGGB####&&&5!7?####BGPPJ????????77!!B@@@&&@&&&&&&@&@&@&&&&&&@&7!!!!!!!!!!~B&&@@@PGGGGY!!?
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/// @5!?GGG@@@&P~~!@@@&7!!!~G@&@@&@@&&@GYP&&@@&@BJ???7!7&@&&&&&@#~!??!!!!!!!#@&@&&&&&&@@@&&&&@&&@&&&&@Y~!!!!!!Y&7!~~~G@@BBB@@G~~?
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/// ~#@&JJJ!~&@G~~!P7!Y&P~!!!!7!!!75&@@&G&@@@&B5?7!7????????7!!!!!!!!!?5#&@@&&&&&&@@@&&@&&@@&@@&@&@@&&&?!!!!!!!!!JJJ?B@&~~~G&GJY5
/// ?55B@@@Y?#&G?J?7~7P#&G?!!!!!7P&@@&@@&&@&&@@@&&J!!!7!!!7!!!!!!!!J5#&@@&@&&&&&@&@@@@@@&@@@@&&&&@@@&@&?!!!!!!!!!#@@@@@&?JJ??G&&#
/// @Y~Y@@@@@Y^G@&77P&@@@@&B?!7P&@@&@@@@&&&&&&&&&@&J~!!!!!!7!!!!?P&@@@@@@&&@@&@&&&&@&@@&&@@@@@&&&&@@@@&Y!!!!!7!!!Y@@@@@@@@@@@G~!!
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/// PGBGPPPBBGP&5?&@@@@@&@@@@@@&&@@&@&&@@@&&@@&&@&@@&P?~!!!?B&&@@@@&&@&&@&@&&@@&@@@&&@&&@@@@&@&&@&&@&&&@@@@@&Y!!7!YPYB&#5P5P5GBBB
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/// @@@@@@@7~!7G&@&&@@@&&@@@@&@@&@&&@&&&BGB&&&&&&&&&&&&@@&@&@&&&&&&&@&&@&&&&@@@@@@&&&@@@&&&@@&&&&&@&&&@@&&&&&&@&G7!!7?5@@@@@@@@@@
/// @@@@&#B&&#&@@&&@@@@@&@@@@@@@@&&@@&@#GGG#@&&&@&&@&&@@@&&&@@@&@@&&@@&&&@@@@@&@@@@&@@&&@@@&@@&@&&@@@@&&@@&@@@@&@B7!YY!YBBB@@@@@&
/// J&@&&@#&@@@@@&&&@@&&@@@@@&&&@@@@&&&GGGB&&#@&@@&@&&@&&@&&&&@&&&@@@@&&@@@&@&&&&&&@@@@&@@&&@@&&&@&&@@@@@@&@&@@@&@&?!!!!77!&@@@@&
/// 7&@@@@@&&&@@@&&&&&&&@@&@#P&@@@@&#BGGGB&@@@@&@@&@@&&&&&&&&@@&@@@@@@@&&&@@&@&&&@@@@&&&@@&@&@@@&@&@@@@&&&&@&&&&@&@&Y!!!!?YB&&@@@
/// B&@@@&&&&&@@@&@&&&&@&&@&#&@&@&#GGGGB&&&@@&&@&&@@@&@@&&&&&&@&&&&@&@&##@@&@@&&&@@@@&&@@@&@@&@@&@&@@@&&@&@@&&&&&&&@&Y!!!?&5!G@@@
/// @Y!#@@@&&&@@&&&@&&@@@@@&&@&&&BGGG#&@@&@&@&&@@&@@&@&&&&&@&&@&&@&&&&@BB##&@@&&&&@@@@@@&&&@&&&&&&@@&&&@@&&&&&@&&&&@@@P!!!!YP&@@&
/// 5B#@@&@&&&&@&&@&@@@&&&&&&@&#GGGB&@@@@&@@@&&&@&&&@&&@&@&&&@@&@&&&&&@&#GGG&@&&&&&@@@&&@@@&&&&&@&@@@@@@@&&@@&@@@&@@@&@G??7!JB@@@
/// ~#@@@@@&&@@&@&@@@@@&@@@@&@&GGG#@&@&&&@@@@&&&@&&&&@@&&&@&@&&&&&@&&&&@&GGGG&@&@@@&@&&@@&&&@&&&&@@@@&&&&@&&@@&@@@@@&&&@&BYYPY&@@
/// !5&&&@@&&@@&&&@@&@@@@@@@&&&##&@&&&@@&@@&@&&@@&&&@@&@&&@&@@&@&&@&@&&@#GGGG&@@@&@&&&&@&&@&@&&@@&@&@&@&&@&&@@&&@@@@@@@@@&G&&#&@&
/// YG@@&&@@&@&&&@&@&&@@&&&&&&&#&@&&&&&@&&&&&&&&&&@&&&@@@@&@@&&@@&&&&&@&#GGGG&@@&@&&&&&@&&&&@@&&@&&@@@&&&&@&&&@@@@@@&@&@@@B5@@&&@
/// #&@&&&@@&&&&&&&&&&&&&&@&&@&#&&@@&@&@@&@@&&@&@&@&@@&@@@&&&&&&&@&&&&&&BGGGG&&&&@@&&@&&&@@&&@@&&&&&@&&&@&&@@@@@@&&&&@@&@&@P5&@&&
/// @&&&&&&&@@&&@&&&&@&@&&&@&@@@&&&@&@&&@@&@&&&&@@@@@@@@@&@@&&@&@@@&&&&@BGGGG&@&&@&&@&&@@&@&&@@&&&&@@@@&&&&@@@&&&@&&@@@&@@@&?5&@@

pragma solidity ^0.8;

import "./TokenReceiver.sol";

contract RIGHTCLICKSAVEAS {
    string public symbol = "CC0";
    string public name = "RIGHT CLICK SAVE AS";

    address public XCOPY = 0x39Cc9C86E67BAf2129b80Fe3414c397492eA8026;
    string public CID = "QmTA9VN19dxgFEF1H1dJZvmBCFsZRryBBnLKfUJZzFXNmU";

    uint256 public tokenId = 1;
    uint256 public totalSupply = 101;

    mapping (uint256 => address) owners;
    mapping(address => uint256) balances;
    
    mapping(uint256 => address) approvals;
    mapping(address => mapping(address => bool)) operatorApprovals;

    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    constructor() {}

    function RightClickSaveAs() public {
        require (tokenId <= 101);
        while (tokenId <= 101)
            _mint(msg.sender, tokenId++);
    }

    function supportsInterface(bytes4 interfaceId)
    public pure returns (bool) {
        return interfaceId == 0x80ac58cd || interfaceId == 0x5b5e139f;
    }

    function balanceOf(address owner)
    public view returns (uint256) {
        require(address(0) != owner, "error address(0)");
        return balances[owner];
    }

    function ownerOf(uint256 id)
    public view returns (address) {
        require(owners[id] != address(0), "error !exist");
        return owners[id];
    }

    function tokenURI(uint256 id)
    public view returns (string memory) {
        require(owners[id] != address(0), "error !exist");
        return string(abi.encodePacked(
                'data:application/json;base64,',
                encode(
                    bytes (
                        string(
                            abi.encodePacked(
                                "{",
                                '"name":"RIGHT CLICK SAVE AS CC0",',
                                '"description":"Why would I buy it when I can right click and save as? - XCOPY",',
                                '"image":"ipfs://',
                                CID,
                                '"',
                                "}"
                            )
                        )
                    )
                )
            )
        );
    }

    function approve(address to, uint256 id)
    public {
        address owner = owners[id];
        require(to != owner, "error to");
        require(
            owner == msg.sender ||
            operatorApprovals[owner][msg.sender],
            "error owner"
        );
        approvals[id] = to;
        emit Approval(owner, to, id);
    }

    function getApproved(uint256 id)
    public view returns (address) {
        require(owners[id] != address(0), "error !exist");
        return approvals[id];
    }

    function setApprovalForAll(address operator, bool approved)
    public {
        require(operator != msg.sender, "error operator");
        operatorApprovals[msg.sender][operator] = approved;
        emit ApprovalForAll(msg.sender, operator, approved);
    }

    function isApprovedForAll(address owner, address operator)
    public view returns (bool) {
        return operatorApprovals[owner][operator];
    }

    function transferFrom(address from, address to, uint256 id)
    public {
        require(owners[id] != address(0), "error !exist");
        address owner = owners[id];
        require(
            msg.sender == owner ||
            msg.sender == approvals[id] ||
            operatorApprovals[owner][msg.sender], 
            "error msg.sender"
        );

        _transfer(owner, from, to, id);
    }

    function safeTransferFrom(address from, address to, uint256 id, bytes memory data)
    public {
        address owner = owners[id];
        require(
            msg.sender == owner ||
            msg.sender == approvals[id] ||
            operatorApprovals[owner][msg.sender], 
            "error msg.sender"
        );
        _transfer(owner, from, to, id);
        require(_checkOnERC721Received(from, to, id, data), "error ERC721Receiver");
    }

    function _mint(address to, uint256 id)
    private {
        require(to != address(0), "error to");
        require(owners[id] == address(0), "error owners[id]");
        emit Transfer(address(0), XCOPY, id);

        balances[to]++;
        owners[id] = to;
        
        emit Transfer(XCOPY, to, id);
        require(_checkOnERC721Received(XCOPY, to, id, ""), "error ERC721Receiver");
    }

    function _transfer(address owner, address from, address to, uint256 id)
    private {
        require(owner == from, "errors owners[id]");
        require(address(0) != to, "errors address(0)");

        approve(address(0), id);
        balances[from]--;
        balances[to]++;
        owners[id] = to;
        
        emit Transfer(from, to, id);
    }

    function _checkOnERC721Received(address from, address to, uint256 id, bytes memory _data)
    internal returns (bool) {
        uint256 size;

        assembly {
            size := extcodesize(to)
        }

        if (size > 0)
            try ERC721TokenReceiver(to).onERC721Received(msg.sender, from, id, _data) returns (bytes4 retval) {
                return retval == ERC721TokenReceiver(to).onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) revert("error ERC721Receiver");
                else assembly {
                        revert(add(32, reason), mload(reason))
                    }
            }
        else return true;
    }
    
    function _toString(uint256 value) private pure returns (string memory) {
        if (value == 0) return "0";

        uint256 digits;
        uint256 tmp = value;

        while (tmp != 0) {
            digits++;
            tmp /= 10;
        }

        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }

        return string(buffer);
    }

    function encode(bytes memory data) internal pure returns (string memory) {
        uint256 len = data.length;
        if (len == 0) return "";

        uint256 encodedLen = 4 * ((len + 2) / 3);

        bytes memory result = new bytes(encodedLen + 32);

        bytes memory table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

        assembly {
            let tablePtr := add(table, 1)
            let resultPtr := add(result, 32)

            for {
                let i := 0
            } lt(i, len) {

            } {
                i := add(i, 3)
                let input := and(mload(add(data, i)), 0xffffff)

                let out := mload(add(tablePtr, and(shr(18, input), 0x3F)))
                out := shl(8, out)
                out := add(out, and(mload(add(tablePtr, and(shr(12, input), 0x3F))), 0xFF))
                out := shl(8, out)
                out := add(out, and(mload(add(tablePtr, and(shr(6, input), 0x3F))), 0xFF))
                out := shl(8, out)
                out := add(out, and(mload(add(tablePtr, and(input, 0x3F))), 0xFF))
                out := shl(224, out)

                mstore(resultPtr, out)

                resultPtr := add(resultPtr, 4)
            }

            switch mod(len, 3)
            case 1 {
                mstore(sub(resultPtr, 2), shl(240, 0x3d3d))
            }
            case 2 {
                mstore(sub(resultPtr, 1), shl(248, 0x3d))
            }

            mstore(result, encodedLen)
        }

        return string(result);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8;

interface ERC721TokenReceiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

{
  "compilationTarget": {
    "RIGHTCLICKSAVEAS.sol": "RIGHTCLICKSAVEAS"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}