Contract Name:
CrazySassyExes
Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.15;
/*
*
* d888888o. .8. d888888o. d888888o. `8.`8888. ,8'
* .`8888:' `88. .888. .`8888:' `88. .`8888:' `88. `8.`8888. ,8'
* 8.`8888. Y8 :88888. 8.`8888. Y8 8.`8888. Y8 `8.`8888. ,8'
* `8.`8888. . `88888. `8.`8888. `8.`8888. `8.`8888.,8'
* `8.`8888. .8. `88888. `8.`8888. `8.`8888. `8.`88888'
* `8.`8888. .8`8. `88888. `8.`8888. `8.`8888. `8. 8888
* `8.`8888. .8' `8. `88888. `8.`8888. `8.`8888. `8 8888
* 8b `8.`8888. .8' `8. `88888. 8b `8.`8888. 8b `8.`8888. 8 8888
* `8b. ;8.`8888 .888888888. `88888. `8b. ;8.`8888 `8b. ;8.`8888 8 8888
* `Y8888P ,88P'.8' `8. `88888. `Y8888P ,88P' `Y8888P ,88P' 8 8888
*
* FOUNDER: @StudioIrida
* ART: @StudioIrida
* DEV: @ghooost0x2a
**********************************
* @title: Crazy Sassy Exes
* @author: @ghooost0x2a
**********************************
* ERC721B2FA - Ultra Low Gas - 2 Factor Authentication
*****************************************************************
* ERC721B2FA is based on ERC721B low gas contract by @squuebo_nft
* and the LockRegistry/Guardian contracts by @OwlOfMoistness
*****************************************************************
* .-----.
* .' - - '.
* / .-. .-. \
* | | | | | |
* \ \o/ \o/ /
* _/ ^ \_
* | \ '---' / |
* / /`--. .--`\ \
* / /'---` `---'\ \
* '.__. .__.'
* `| |`
* | \
* \ '--.
* '. `\
* `'---. |
* ,__) /
* `..'
*/
import "./ERC721B2FAEnumLitePausable.sol";
import "./GuardianLiteB2FA.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
contract CrazySassyExes is ERC721B2FAEnumLitePausable, GuardianLiteB2FA {
using MerkleProof for bytes32[];
using Address for address;
using Strings for uint256;
event Withdrawn(address indexed payee, uint256 weiAmount);
uint256 public MAX_SUPPLY = 3333;
uint256 public publicPrice = 0.025 ether;
uint256 public publicPriceDiscounted = 0.02 ether;
uint256 public preSalePrice = 0.015 ether;
uint256 public preSalePriceDiscounted = 0.01 ether;
string internal baseURI = "";
string internal uriSuffix = ".json";
address public paymentRecipient =
0xA94F799A34887582987eC8C050f080e252B70A21;
// dev: public mints
uint256 public maxPublicCSEMintsPerWallet = 3;
uint256 public maxPreSaleCSEMintsPerWallet = 3;
bytes32 private merkleRoot = 0;
mapping(address => uint256) public presaleMintedAddys;
mapping(address => uint256) public publicMintedAddys;
uint256 public mintPhase = 0;
//TODO STRUCT FOR STATUS
constructor() ERC721B2FAEnumLitePausable("CrazySassyExes", "CSE", 1) {}
fallback() external payable {}
receive() external payable {}
function setMintPhase(uint256 newPhase) external onlyDelegates {
mintPhase = newPhase;
}
function tokenURI(uint256 tokenId)
external
view
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
return
bytes(baseURI).length > 0
? string(
abi.encodePacked(baseURI, tokenId.toString(), uriSuffix)
)
: "";
}
//setter fns
function togglePause(uint256 pauseIt) external onlyDelegates {
if (pauseIt == 0) {
_unpause();
} else {
_pause();
}
}
function getMerkleRoot() public view returns (bytes32) {
return merkleRoot;
}
function setMerkleRoot(bytes32 mRoot) external onlyDelegates {
merkleRoot = mRoot;
}
function updateBlackListedApprovals(address[] calldata addys, bool[] calldata blacklisted) external onlyDelegates{
require(addys.length == blacklisted.length, "Nb addys doesn't match nb bools.");
for (uint256 i; i < addys.length; ++i) {
_updateBlackListedApprovals(addys[i], blacklisted[i]);
}
}
function isvalidMerkleProof(bytes32[] memory proof)
public
view
returns (bool)
{
if (merkleRoot == 0) {
return false;
}
bool proof_valid = proof.verify(
merkleRoot,
keccak256(abi.encodePacked(msg.sender))
);
return proof_valid;
}
function setPublicPrice(uint256 newPrice, uint256 newDiscountedPrice) external onlyDelegates {
publicPrice = newPrice;
publicPriceDiscounted = newDiscountedPrice;
}
function setPreSalePrice(uint256 newPrice, uint256 newDiscountedPrice) external onlyDelegates {
preSalePrice = newPrice;
preSalePriceDiscounted = newDiscountedPrice;
}
function setBaseSuffixURI(
string calldata newBaseURI,
string calldata newURISuffix
) external onlyDelegates {
baseURI = newBaseURI;
uriSuffix = newURISuffix;
}
function setmaxCSEMintsPerWallet(uint256 maxPresaleMints, uint256 maxPublicMints) external onlyDelegates {
maxPublicCSEMintsPerWallet = maxPublicMints;
maxPreSaleCSEMintsPerWallet = maxPresaleMints;
}
function setPaymentRecipient(address addy) external onlyDelegates {
paymentRecipient = addy;
}
function setReducedMaxSupply(uint256 new_max_supply)
external
onlyDelegates
{
require(new_max_supply < MAX_SUPPLY, "Can only set a lower size.");
require(
new_max_supply >= totalSupply(),
"New supply lower than current totalSupply"
);
MAX_SUPPLY = new_max_supply;
}
// Mint fns
function freeTeamMints(uint256 quantity, address[] memory recipients)
external
onlyDelegates
{
if (recipients.length == 1) {
for (uint256 i = 0; i < quantity; i++) {
_minty(1, recipients[0]);
}
}
else {
require(quantity == recipients.length, "Number of recipients doesn't match quantity.");
for (uint256 i = 0; i < recipients.length; i++) {
_minty(1, recipients[i]);
}
}
}
// Pre-sale mint
function sassyMint(uint256 quantity, bytes32[] memory proof) external payable {
uint256 total_mint_price = preSalePrice;
if (quantity > 1) {
total_mint_price = quantity * preSalePriceDiscounted;
}
require(
mintPhase == 1 || _isDelegate(_msgSender()),
"Pre-Sale mint not open"
);
require(msg.value == total_mint_price, "Wrong amount of ETH sent!");
require(
presaleMintedAddys[_msgSender()] + quantity <= maxPreSaleCSEMintsPerWallet,
"Already minted max during pre-sale."
);
require(
isvalidMerkleProof(proof),
"You are not authorized for pre-sale."
);
presaleMintedAddys[_msgSender()] += quantity;
_minty(quantity, _msgSender());
}
// Public Mint
function publicMint(uint256 quantity) external payable {
uint256 total_mint_price = publicPrice;
if (quantity > 1) {
total_mint_price = quantity * publicPriceDiscounted;
}
require(
mintPhase == 2 || _isDelegate(_msgSender()),
"Public mint is not open yet!"
);
require(msg.value == total_mint_price, "Wrong amount of ETH sent!");
require(
publicMintedAddys[_msgSender()] + quantity <=
maxPublicCSEMintsPerWallet,
"You have minted max during public phase."
);
publicMintedAddys[_msgSender()] += quantity;
_minty(quantity, _msgSender());
}
function _minty(uint256 quantity, address addy) internal {
require(quantity > 0, "Can't mint 0 tokens!");
require(quantity + totalSupply() <= MAX_SUPPLY, "Max supply reached!");
for (uint256 i = 0; i < quantity; i++) {
_safeMint(addy, next());
}
}
//Just in case some ETH ends up in the contract so it doesn't remain stuck.
function withdraw() external onlyDelegates {
uint256 contract_balance = address(this).balance;
address payable w_addy = payable(paymentRecipient);
(bool success, ) = w_addy.call{value: (contract_balance)}("");
require(success, "Withdrawal failed!");
emit Withdrawn(w_addy, contract_balance);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_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) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 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);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return 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 Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(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
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol)
pragma solidity ^0.8.0;
/**
* @dev These functions deal with verification of Merkle Tree proofs.
*
* The proofs can be generated using the JavaScript library
* https://github.com/miguelmota/merkletreejs[merkletreejs].
* Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
*
* See `test/utils/cryptography/MerkleProof.test.js` for some examples.
*
* WARNING: You should avoid using leaf values that are 64 bytes long prior to
* hashing, or use a hash function other than keccak256 for hashing leaves.
* This is because the concatenation of a sorted pair of internal nodes in
* the merkle tree could be reinterpreted as a leaf value.
*/
library MerkleProof {
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*/
function verify(
bytes32[] memory proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
/**
* @dev Calldata version of {verify}
*
* _Available since v4.7._
*/
function verifyCalldata(
bytes32[] calldata proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leafs & pre-images are assumed to be sorted.
*
* _Available since v4.4._
*/
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Calldata version of {processProof}
*
* _Available since v4.7._
*/
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* _Available since v4.7._
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
/**
* @dev Calldata version of {multiProofVerify}
*
* _Available since v4.7._
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`,
* consuming from one or the other at each step according to the instructions given by
* `proofFlags`.
*
* _Available since v4.7._
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Calldata version of {processMultiProof}
*
* _Available since v4.7._
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./ILockERC721.sol";
contract GuardianLiteB2FA {
ILockERC721 public immutable LOCKABLE;
mapping(address => address) public guardians;
mapping(address => address) public pendingGuardians;
event GuardianSet(address indexed guardian, address indexed user);
event GuardianRenounce(address indexed guardian, address indexed user);
event PendingGuardianSet(
address indexed pendingGuardian,
address indexed user
);
/**
* using address(this) when the Guardian is deployed in the same contract as the ERC721B
*/
constructor() {
LOCKABLE = ILockERC721(address(this));
}
function proposeGuardian(address _guardian) external {
require(guardians[msg.sender] == address(0), "Guardian set");
require(msg.sender != _guardian, "Guardian must be a different wallet");
pendingGuardians[msg.sender] = _guardian;
emit PendingGuardianSet(_guardian, msg.sender);
}
function acceptGuardianship(address _protege) external {
require(
pendingGuardians[_protege] == msg.sender,
"Not the pending guardian"
);
pendingGuardians[_protege] = address(0);
guardians[_protege] = msg.sender;
emit GuardianSet(msg.sender, _protege);
}
function renounce(address _tokenOwner) external {
require(guardians[_tokenOwner] == msg.sender, "!guardian");
guardians[_tokenOwner] = address(0);
emit GuardianRenounce(msg.sender, _tokenOwner);
}
function lockMany(uint256[] calldata _tokenIds) external {
address owner;
for (uint256 i = 0; i < _tokenIds.length; i++) {
owner = LOCKABLE.ownerOf(_tokenIds[i]);
require(guardians[owner] == msg.sender, "!guardian");
LOCKABLE.lockId(_tokenIds[i]);
}
}
function unlockMany(uint256[] calldata _tokenIds) external {
address owner;
for (uint256 i = 0; i < _tokenIds.length; i++) {
owner = LOCKABLE.ownerOf(_tokenIds[i]);
require(guardians[owner] == msg.sender, "!guardian");
LOCKABLE.unlockId(_tokenIds[i]);
}
}
/** Modified to grant temporary approval on the token,
* to the guardian contract, before initiating transfer */
function unlockManyAndTransfer(
uint256[] calldata _tokenIds,
address _recipient
) external {
address owner;
for (uint256 i = 0; i < _tokenIds.length; i++) {
owner = LOCKABLE.ownerOf(_tokenIds[i]);
require(guardians[owner] == msg.sender, "!guardian");
LOCKABLE.temporaryApproval(_tokenIds[i]);
LOCKABLE.unlockId(_tokenIds[i]);
LOCKABLE.safeTransferFrom(owner, _recipient, _tokenIds[i]);
}
}
}
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.14;
/***
*************************************************************************
* ERC721B2FA - Ultra Low Gas - 2 Factor Authentication *
* @author: @ghooost0x2a *
*************************************************************************
* ERC721B2FA is a modified version of EnumerableLite, by @squuebo_nft *
* and the LockRegistry/Guardian contracts by @OwlOfMoistness *
*************************************************************************
* ::::::: :::::::: ::: *
* :+: :+: :+: :+: :+: :+: :+: :+: *
* +:+ :+:+ +:+ +:+ +:+ +:+ +:+ *
* +#+ + +:+ +#++:+ +#+ +#++:++#++: *
* +#+# +#+ +#+ +#+ +#+ +#+ +#+ *
* #+# #+# #+# #+# #+# #+# #+# *
* ####### ########## ### ### *
*************************************************************************/
import "./ERC721BLockRegistry.sol";
import "./IBatch.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
abstract contract ERC721B2FAEnumLitePausable is
ERC721BLockRegistry,
Pausable,
IBatch,
IERC721Enumerable
{
constructor(
string memory _name,
string memory _symbol,
uint256 _offset
) ERC721BLockRegistry(_name, _symbol, _offset) {}
function setDefaultRoyalty(address receiver, uint96 feeNumerator)
external
onlyDelegates
{
_setDefaultRoyalty(receiver, feeNumerator);
}
function deleteDefaultRoyalty() external onlyDelegates {
_deleteDefaultRoyalty();
}
function setTokenRoyalty(
uint256 tokenId,
address receiver,
uint96 feeNumerator
) external onlyDelegates {
_setTokenRoyalty(tokenId, receiver, feeNumerator);
}
function resetTokenRoyalty(uint256 tokenId) external onlyDelegates {
_resetTokenRoyalty(tokenId);
}
function isOwnerOf(address account, uint256[] calldata tokenIds)
external
view
override
returns (bool)
{
for (uint256 i; i < tokenIds.length; ++i) {
if (_owners[tokenIds[i]] != account) return false;
}
return true;
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(IERC165, ERC721B)
returns (bool)
{
return
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256 tokenId)
{
uint256 count;
for (uint256 i; i < _owners.length; ++i) {
if (owner == _owners[i]) {
if (count == index) return i;
else ++count;
}
}
require(false, "ERC721Enumerable: owner index out of bounds");
}
function tokenByIndex(uint256 index)
external
view
virtual
override
returns (uint256)
{
require(
index < totalSupply(),
"ERC721Enumerable: global index out of bounds"
);
return index;
}
function totalSupply()
public
view
override(ERC721B, IERC721Enumerable)
returns (uint256)
{
return _owners.length - _offset;
}
// Modified to call ERC721BLockRegistry's safeTransferFrom (to account for 2FA)
function transferBatch(
address from,
address to,
uint256[] calldata tokenIds,
bytes calldata data
) external override {
for (uint256 i; i < tokenIds.length; ++i) {
ERC721BLockRegistry.safeTransferFrom(from, to, tokenIds[i], data);
}
}
function walletOfOwner(address account)
external
view
override
returns (uint256[] memory)
{
uint256 quantity = balanceOf(account);
uint256[] memory wallet = new uint256[](quantity);
for (uint256 i; i < quantity; ++i) {
wallet[i] = tokenOfOwnerByIndex(account, i);
}
return wallet;
}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;
import "./ERC721B.sol";
/**
* Modified interface to add temporaryApproval for guardian contract
*/
interface ILockERC721 is IERC721 {
function lockId(uint256 _id) external;
function unlockId(uint256 _id) external;
function freeId(uint256 _id, address _contract) external;
function temporaryApproval(uint256 _id) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// 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);
}
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.13;
interface IBatch {
function isOwnerOf(address account, uint256[] calldata tokenIds)
external
view
returns (bool);
function transferBatch(
address from,
address to,
uint256[] calldata tokenIds,
bytes calldata data
) external;
function walletOfOwner(address account)
external
view
returns (uint256[] memory);
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.2;
/*
* ,_,
* (',')
* {/"\}
* -"-"-
*/
import "./ERC721B.sol";
import "./LockRegistry.sol";
import "./ILockERC721.sol";
abstract contract ERC721BLockRegistry is ERC721B, LockRegistry, ILockERC721 {
constructor(
string memory _name,
string memory _symbol,
uint256 _offset
) ERC721B(_name, _symbol, _offset) {}
function transferFrom(
address from,
address to,
uint256 tokenId
) public override(ERC721B, IERC721) {
require(isUnlocked(tokenId), "Token is locked");
ERC721B.transferFrom(from, to, tokenId);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external override(ERC721B, IERC721) {
require(isUnlocked(tokenId), "Token is locked");
ERC721B.safeTransferFrom(from, to, tokenId, "");
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override(ERC721B, IERC721) {
require(isUnlocked(tokenId), "Token is locked");
ERC721B.safeTransferFrom(from, to, tokenId, _data);
}
/**
* Added this function to be called (from an approvedContract's unlockManyAndTransfer)
* so that the user doesn't need to provide authorization to the guardian contract, in advance
*/
function temporaryApproval(uint256 tokenId) external {
require(_exists(tokenId), "Token !exist");
require(!isUnlocked(tokenId), "Token !locked");
require(
LockRegistry.approvedContract[_msgSender()],
"Not approved contract"
);
ERC721B._approve(_msgSender(), tokenId);
}
function lockId(uint256 _id) external override {
require(_exists(_id), "Token !exist");
_lockId(_id);
}
function unlockId(uint256 _id) external override {
require(_exists(_id), "Token !exist");
_unlockId(_id);
}
function freeId(uint256 _id, address _contract)
external
override
onlyDelegates
{
require(_exists(_id), "Token !exist");
_freeId(_id, _contract);
}
}
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.15;
/****************************************
* @author: squeebo_nft *
* @team: GoldenX *
****************************************
* Blimpie-ERC721 provides low-gas *
* mints + transfers *
****************************************/
//INTERFACES
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
//CONTRACTS
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/token/common/ERC2981.sol";
abstract contract ERC721B is
Context,
ERC165,
ERC2981,
IERC721,
IERC721Metadata
{
using Address for address;
event BlacklistUpdate(address indexed addy, bool is_blacklisted);
string private _name;
string private _symbol;
uint256 internal _offset;
address[] internal _owners;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
mapping(address => bool) public blacklisted_approvals;
constructor(
string memory name_,
string memory symbol_,
uint256 offset
) {
_name = name_;
_symbol = symbol_;
_offset = offset;
for (uint256 i; i < _offset; ++i) {
_owners.push(address(0));
}
}
//public
function balanceOf(address owner)
public
view
virtual
override
returns (uint256)
{
require(
owner != address(0),
"ERC721: balance query for the zero address"
);
uint256 count;
for (uint256 i; i < _owners.length; ++i) {
if (owner == _owners[i]) ++count;
}
return count;
}
function name() external view virtual override returns (string memory) {
return _name;
}
function next() public view returns (uint256) {
return _owners.length;
}
function ownerOf(uint256 tokenId)
public
view
virtual
override
returns (address)
{
address owner = _owners[tokenId];
require(
owner != address(0),
"ERC721: owner query for nonexistent token"
);
return owner;
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165, ERC2981)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
function symbol() external view virtual override returns (string memory) {
return _symbol;
}
function totalSupply() public view virtual returns (uint256) {
return _owners.length - _offset;
}
function approve(address to, uint256 tokenId) external virtual override {
address owner = ERC721B.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
function getApproved(uint256 tokenId)
public
view
virtual
override
returns (address)
{
require(
_exists(tokenId),
"ERC721: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
function _updateBlackListedApprovals(address addy, bool blacklisted) internal virtual {
blacklisted_approvals[addy]=blacklisted;
emit BlacklistUpdate(addy, blacklisted);
}
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
if (blacklisted_approvals[operator] == true) {
return false;
}
return _operatorApprovals[owner][operator];
}
function setApprovalForAll(address operator, bool approved)
external
virtual
override
{
require(operator != _msgSender(), "ERC721: approve to caller");
require(!blacklisted_approvals[operator], "This opperator is blacklisted.");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(
_isApprovedOrOwner(_msgSender(), tokenId),
"ERC721: transfer caller is not owner nor approved"
);
_transfer(from, to, tokenId);
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external virtual override {
safeTransferFrom(from, to, tokenId, "");
}
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(
_isApprovedOrOwner(_msgSender(), tokenId),
"ERC721: transfer caller is not owner nor approved"
);
_safeTransfer(from, to, tokenId, _data);
}
//internal
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return tokenId < _owners.length && _owners[tokenId] != address(0);
}
function _isApprovedOrOwner(address spender, uint256 tokenId)
internal
view
virtual
returns (bool)
{
require(
_exists(tokenId),
"ERC721: operator query for nonexistent token"
);
address owner = ERC721B.ownerOf(tokenId);
return (spender == owner ||
getApproved(tokenId) == spender ||
isApprovedForAll(owner, spender));
}
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_owners.push(to);
emit Transfer(address(0), to, tokenId);
}
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721B.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_owners[tokenId] = address(0);
_resetTokenRoyalty(tokenId);
emit Transfer(owner, address(0), tokenId);
}
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(
ERC721B.ownerOf(tokenId) == from,
"ERC721: transfer of token that is not own"
);
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
function _approve(address to, uint256 tokenId) internal virtual {
require(!blacklisted_approvals[to], "This opperator is blacklisted.");
_tokenApprovals[tokenId] = to;
emit Approval(ERC721B.ownerOf(tokenId), to, tokenId);
}
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.2;
/*
* ,_,
* (',')
* {/"\}
* -"-"-
*/
import "./Delegated.sol";
abstract contract LockRegistry is Delegated {
mapping(address => bool) public approvedContract;
mapping(uint256 => uint256) public lockCount;
mapping(uint256 => mapping(uint256 => address)) public lockMap;
mapping(uint256 => mapping(address => uint256)) public lockMapIndex;
event TokenLocked(
uint256 indexed tokenId,
address indexed approvedContract
);
event TokenUnlocked(
uint256 indexed tokenId,
address indexed approvedContract
);
function isUnlocked(uint256 _id) public view returns (bool) {
return lockCount[_id] == 0;
}
function updateApprovedContracts(
address[] calldata _contracts,
bool[] calldata _values
) external onlyDelegates {
require(_contracts.length == _values.length, "!length");
for (uint256 i = 0; i < _contracts.length; i++)
approvedContract[_contracts[i]] = _values[i];
}
function _lockId(uint256 _id) internal {
require(approvedContract[msg.sender], "Cannot update map");
require(
lockMapIndex[_id][msg.sender] == 0,
"ID already locked by caller"
);
uint256 count = lockCount[_id] + 1;
lockMap[_id][count] = msg.sender;
lockMapIndex[_id][msg.sender] = count;
lockCount[_id]++;
emit TokenLocked(_id, msg.sender);
}
function _unlockId(uint256 _id) internal {
require(approvedContract[msg.sender], "Cannot update map");
uint256 index = lockMapIndex[_id][msg.sender];
require(index != 0, "ID not locked by caller");
uint256 last = lockCount[_id];
if (index != last) {
address lastContract = lockMap[_id][last];
lockMap[_id][index] = lastContract;
lockMap[_id][last] = address(0);
lockMapIndex[_id][lastContract] = index;
} else lockMap[_id][index] = address(0);
lockMapIndex[_id][msg.sender] = 0;
lockCount[_id]--;
emit TokenUnlocked(_id, msg.sender);
}
function _freeId(uint256 _id, address _contract) internal {
require(!approvedContract[_contract], "Cannot update map");
uint256 index = lockMapIndex[_id][_contract];
require(index != 0, "ID not locked");
uint256 last = lockCount[_id];
if (index != last) {
address lastContract = lockMap[_id][last];
lockMap[_id][index] = lastContract;
lockMap[_id][last] = address(0);
lockMapIndex[_id][lastContract] = index;
} else lockMap[_id][index] = address(0);
lockMapIndex[_id][_contract] = 0;
lockCount[_id]--;
emit TokenUnlocked(_id, _contract);
}
}
// 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
// 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;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
import "@openzeppelin/contracts/access/Ownable.sol";
contract Delegated is Ownable {
mapping(address => bool) internal _delegates;
modifier onlyDelegates() {
require(_delegates[msg.sender], "Invalid delegate");
_;
}
constructor() Ownable() {
setDelegate(owner(), true);
}
//onlyOwner
function isDelegate(address addr) external view onlyOwner returns (bool) {
return _delegates[addr];
}
function _isDelegate(address addr) internal view returns (bool) {
return _delegates[addr];
}
function setDelegate(address addr, bool isDelegate_) public onlyOwner {
_delegates[addr] = isDelegate_;
}
function transferOwnership(address newOwner)
public
virtual
override
onlyOwner
{
_delegates[newOwner] = true;
super.transferOwnership(newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)
pragma solidity ^0.8.0;
import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
*
* Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
* specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
*
* Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
* fee is specified in basis points by default.
*
* IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
* https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
* voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
*
* _Available since v4.5._
*/
abstract contract ERC2981 is IERC2981, ERC165 {
struct RoyaltyInfo {
address receiver;
uint96 royaltyFraction;
}
RoyaltyInfo private _defaultRoyaltyInfo;
mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC2981
*/
function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];
if (royalty.receiver == address(0)) {
royalty = _defaultRoyaltyInfo;
}
uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();
return (royalty.receiver, royaltyAmount);
}
/**
* @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
* fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
* override.
*/
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
/**
* @dev Sets the royalty information that all ids in this contract will default to.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator.
*/
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: invalid receiver");
_defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
}
/**
* @dev Removes default royalty information.
*/
function _deleteDefaultRoyalty() internal virtual {
delete _defaultRoyaltyInfo;
}
/**
* @dev Sets the royalty information for a specific token id, overriding the global default.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator.
*/
function _setTokenRoyalty(
uint256 tokenId,
address receiver,
uint96 feeNumerator
) internal virtual {
require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
require(receiver != address(0), "ERC2981: Invalid parameters");
_tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
}
/**
* @dev Resets royalty information for the token id back to the global default.
*/
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
delete _tokenRoyaltyInfo[tokenId];
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// 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);
}
// 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);
}
// 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);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
* _Available since v4.5._
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}