Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"src/GutterCats721C.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import "@limitbreak/creator-token-standards/src/erc721c/ERC721C.sol";
import "@limitbreak/creator-token-standards/src/access/OwnableBasic.sol";
import "@limitbreak/creator-token-standards/src/token/erc721/MetadataURI.sol";
import "@limitbreak/creator-token-standards/src/programmable-royalties/BasicRoyalties.sol";
/**
* @title GutterCats721C
* @dev Main contract for the GutterCats721C NFT collection. This contract handles:
* - NFT minting and management
* - Royalty distribution
* - ERC1155 to ERC721C wrapping functionality
*
* The contract inherits from:
* - OwnableBasic: Basic ownership functionality
* - ERC721C: Advanced ERC721 implementation with additional features
* - BasicRoyalties: Royalty management system
* - IERC1155Receiver: ERC1155 token receiver functionality
*/
contract GutterCats721C is OwnableBasic, ERC721C, BasicRoyalties, IERC1155Receiver, MetadataURI {
using Strings for uint256;
// Custom errors
/// @dev Thrown when attempting to wrap a token that is already wrapped
error TokenAlreadyWrapped();
/// @dev Thrown when user doesn't have exactly 1 ERC1155 token of the specified ID
error InsufficienBalance();
/// @dev Thrown when trying to unwrap a non-existent ERC721C token
error ERC721CTokenDoesNotExist();
/// @dev Thrown when trying to unwrap a token that wasn't wrapped from ERC1155
error TokenIsNotWrappedERC1155();
/// @dev Thrown when attempting to withdraw from the main ERC1155 contract
error CannotWithdrawFromERC1155Contract();
/// @dev Thrown when ERC1155 receiver callback fails
error ERC1155ReceiverCallbackFailed();
/// @dev Thrown when batch operation arrays have mismatched lengths
error BatchArrayLengthMismatch();
/// @dev Thrown when batch operation array is empty
error EmptyBatchArray();
/// @dev Thrown when batch operation contains duplicate token IDs
error DuplicateTokenIdsInBatch();
/// @dev ERC1155 GutterCats721C contract address - set during deployment
address public immutable ERC1155_COLLECTION_CONTRACT;
/// @dev Contract URI for the GutterCats721C collection
string _contractURI = "https://gcg-metadata.com/cats/collection.json";
/**
* @dev Constructor initializes the GutterCats721C contract
* @param name_ Name of the NFT collection
* @param symbol_ Symbol of the NFT collection
* @param royaltyReceiver_ Address that receives royalty payments
* @param royaltyFeeNumerator_ Royalty fee in basis points (e.g., 250 = 2.5%)
* @param erc1155CollectionContract_ Address of the ERC1155 collection contract
*/
constructor(
string memory name_,
string memory symbol_,
address royaltyReceiver_,
uint96 royaltyFeeNumerator_,
address erc1155CollectionContract_
) ERC721OpenZeppelin(name_, symbol_) BasicRoyalties(royaltyReceiver_, royaltyFeeNumerator_) Ownable() {
ERC1155_COLLECTION_CONTRACT = erc1155CollectionContract_;
}
/**
* @dev Wraps an ERC1155 token into an ERC721C token
* @param tokenId Token ID of the ERC1155 token to wrap
* @notice This function transfers 1 ERC1155 token from msg.sender to this contract and mints an equivalent ERC721C token with the same token ID
*/
function wrapERC1155(uint256 tokenId) public {
if (IERC1155(ERC1155_COLLECTION_CONTRACT).balanceOf(msg.sender, tokenId) < 1) {
revert InsufficienBalance();
}
IERC1155(ERC1155_COLLECTION_CONTRACT).safeTransferFrom(msg.sender, address(this), tokenId, 1, "");
_mint(msg.sender, tokenId);
}
/**
* @dev Wraps multiple ERC1155 tokens into ERC721C tokens in a single transaction
* @param tokenIds Array of token IDs of the ERC1155 tokens to wrap
* @notice This function transfers 1 ERC1155 token for each tokenId from msg.sender to this contract
* and mints equivalent ERC721C tokens with the same token IDs
*/
function wrapERC1155Batch(uint256[] calldata tokenIds) public {
if (tokenIds.length == 0) revert EmptyBatchArray();
// Transfer all ERC1155 tokens to this contract
uint256[] memory amounts = new uint256[](tokenIds.length);
for (uint256 i = 0; i < tokenIds.length; i++) {
amounts[i] = 1;
}
IERC1155(ERC1155_COLLECTION_CONTRACT).safeBatchTransferFrom(msg.sender, address(this), tokenIds, amounts, "");
// Mint ERC721C tokens for each wrapped token
for (uint256 i = 0; i < tokenIds.length; i++) {
uint256 tokenId = tokenIds[i];
_mint(msg.sender, tokenId);
}
}
/**
* @dev Unwraps an ERC721C token back to its original ERC1155 token
* @param tokenId Token ID of the ERC721C token to unwrap
* @notice This function transfers the ERC721C token back to the contract and returns the original ERC1155 token to the user
*/
function unwrapERC1155(uint256 tokenId) public {
if (!_exists(tokenId)) revert ERC721CTokenDoesNotExist();
if (ownerOf(tokenId) != msg.sender) revert InsufficienBalance();
_burn(tokenId);
IERC1155(ERC1155_COLLECTION_CONTRACT).safeTransferFrom(address(this), msg.sender, tokenId, 1, "");
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) {
revert ERC721CTokenDoesNotExist();
}
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString(), suffixURI)) : "";
}
/**
* @dev Required to return baseTokenURI for tokenURI
*/
function _baseURI() internal view virtual override returns (string memory) {
return baseTokenURI;
}
/**
* @dev Sets the contract URI
* @param newuri The new contract URI
* @notice This function can only be called by the contract owner
*/
function setContractURI(string memory newuri) public onlyOwner {
_contractURI = newuri;
}
/**
* @dev Returns the contract URI
* @return The contract URI
*/
function contractURI() public view returns (string memory) {
return _contractURI;
}
/**
* @dev See {IERC165-supportsInterface}
* @param interfaceId The interface identifier to check
* @return bool True if the contract supports the interface
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721C, ERC2981, IERC165)
returns (bool)
{
return ERC721C.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId)
|| interfaceId == type(IERC1155).interfaceId;
}
/**
* @dev Sets the default royalty information for all tokens
* @param receiver Address that receives royalty payments
* @param feeNumerator Royalty fee in basis points (e.g., 250 = 2.5%)
* @notice This function can only be called by the contract owner
*/
function setDefaultRoyalty(address receiver, uint96 feeNumerator) public {
_requireCallerIsContractOwner();
_setDefaultRoyalty(receiver, feeNumerator);
}
/**
* @dev Sets the royalty information for a specific token
* @param tokenId Token ID to set royalty for
* @param receiver Address that receives royalty payments for this token
* @param feeNumerator Royalty fee in basis points (e.g., 250 = 2.5%)
* @notice This function can only be called by the contract owner
*/
function setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) public {
_requireCallerIsContractOwner();
_setTokenRoyalty(tokenId, receiver, feeNumerator);
}
/**
* @dev Withdraws ERC20 tokens from the contract
* @param tokenAddress Address of the ERC20 token to withdraw
* @param amount Amount of tokens to withdraw
* @notice This function can only be called by the contract owner
*/
function withdrawERC20(address tokenAddress, uint256 amount) public onlyOwner {
IERC20 token = IERC20(tokenAddress);
token.transfer(msg.sender, amount);
}
/**
* @dev ERC1155 receiver callback function
* @return bytes4 The function selector for onERC1155Received
*/
function onERC1155Received(address, address, uint256, uint256, bytes calldata)
external
pure
override
returns (bytes4)
{
return this.onERC1155Received.selector;
}
/**
* @dev ERC1155 batch receiver callback function
* @return bytes4 The function selector for onERC1155BatchReceived
*/
function onERC1155BatchReceived(address, address, uint256[] calldata, uint256[] calldata, bytes calldata)
external
pure
override
returns (bytes4)
{
return this.onERC1155BatchReceived.selector;
}
/**
* @dev Withdraws ERC1155 tokens from the contract
* @param tokenAddress Address of the ERC1155 token to withdraw
* @param tokenId Token ID to withdraw
* @param amount Amount of tokens to withdraw
* @param recipient Address to receive the tokens
* @notice This function can only be called by the contract owner and cannot withdraw from the main ERC1155 contract
*/
function withdrawERC1155(address tokenAddress, uint256 tokenId, uint256 amount, address recipient)
public
onlyOwner
{
if (tokenAddress == ERC1155_COLLECTION_CONTRACT) {
revert CannotWithdrawFromERC1155Contract();
}
IERC1155 token = IERC1155(tokenAddress);
token.safeTransferFrom(address(this), recipient, tokenId, amount, "");
}
/**
* @dev Withdraws multiple ERC1155 tokens from the contract in a batch
* @param tokenAddress Address of the ERC1155 token to withdraw
* @param tokenIds Array of token IDs to withdraw
* @param amounts Array of amounts to withdraw for each token ID
* @param recipient Address to receive the tokens
* @notice This function can only be called by the contract owner and cannot withdraw from the main ERC1155 contract
*/
function withdrawERC1155Batch(
address tokenAddress,
uint256[] calldata tokenIds,
uint256[] calldata amounts,
address recipient
) public onlyOwner {
if (tokenAddress == ERC1155_COLLECTION_CONTRACT) {
revert CannotWithdrawFromERC1155Contract();
}
IERC1155 token = IERC1155(tokenAddress);
token.safeBatchTransferFrom(address(this), recipient, tokenIds, amounts, "");
}
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* 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);
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
"
},
"lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
* @dev Handles the receipt of a single ERC1155 token type. This function is
* called at the end of a `safeTransferFrom` after the balance has been updated.
*
* NOTE: To accept the transfer, this must return
* `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
* (i.e. 0xf23a6e61, or its own function selector).
*
* @param operator The address which initiated the transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param id The ID of the token being transferred
* @param value The amount of tokens being transferred
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
* @dev Handles the receipt of a multiple ERC1155 token types. This function
* is called at the end of a `safeBatchTransferFrom` after the balances have
* been updated.
*
* NOTE: To accept the transfer(s), this must return
* `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
* (i.e. 0xbc197c81, or its own function selector).
*
* @param operator The address which initiated the batch transfer (i.e. msg.sender)
* @param from The address which previously owned the token
* @param ids An array containing ids of each token being transferred (order and length must match values array)
* @param values An array containing amounts of each token being transferred (order and length must match ids array)
* @param data Additional data with no specified format
* @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
"
},
"lib/creator-token-standards/src/erc721c/ERC721C.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../utils/AutomaticValidatorTransferApproval.sol";
import "../utils/CreatorTokenBase.sol";
import "../token/erc721/ERC721OpenZeppelin.sol";
import "../interfaces/ITransferValidatorSetTokenType.sol";
import {TOKEN_TYPE_ERC721} from "@limitbreak/permit-c/Constants.sol";
/**
* @title ERC721C
* @author Limit Break, Inc.
* @notice Extends OpenZeppelin's ERC721 implementation with Creator Token functionality, which
* allows the contract owner to update the transfer validation logic by managing a security policy in
* an external transfer validation security policy registry. See {CreatorTokenTransferValidator}.
*/
abstract contract ERC721C is ERC721OpenZeppelin, CreatorTokenBase, AutomaticValidatorTransferApproval {
/**
* @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved
* for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) {
isApproved = super.isApprovedForAll(owner, operator);
if (!isApproved) {
if (autoApproveTransfersFromValidator) {
isApproved = operator == address(getTransferValidator());
}
}
}
/**
* @notice Indicates whether the contract implements the specified interface.
* @dev Overrides supportsInterface in ERC165.
* @param interfaceId The interface id
* @return true if the contract implements the specified interface, false otherwise
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == type(ICreatorToken).interfaceId ||
interfaceId == type(ICreatorTokenLegacy).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @notice Returns the function selector for the transfer validator's validation function to be called
* @notice for transaction simulation.
*/
function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) {
functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256)"));
isViewFunction = true;
}
/// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateBeforeTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
/// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateAfterTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
function _tokenType() internal pure override returns(uint16) {
return uint16(TOKEN_TYPE_ERC721);
}
}
/**
* @title ERC721CInitializable
* @author Limit Break, Inc.
* @notice Initializable implementation of ERC721C to allow for EIP-1167 proxy clones.
*/
abstract contract ERC721CInitializable is ERC721OpenZeppelinInitializable, CreatorTokenBase, AutomaticValidatorTransferApproval {
function initializeERC721(string memory name_, string memory symbol_) public override {
super.initializeERC721(name_, symbol_);
_emitDefaultTransferValidator();
_registerTokenType(getTransferValidator());
}
/**
* @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved
* for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) {
isApproved = super.isApprovedForAll(owner, operator);
if (!isApproved) {
if (autoApproveTransfersFromValidator) {
isApproved = operator == address(getTransferValidator());
}
}
}
/**
* @notice Indicates whether the contract implements the specified interface.
* @dev Overrides supportsInterface in ERC165.
* @param interfaceId The interface id
* @return true if the contract implements the specified interface, false otherwise
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return
interfaceId == type(ICreatorToken).interfaceId ||
interfaceId == type(ICreatorTokenLegacy).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @notice Returns the function selector for the transfer validator's validation function to be called
* @notice for transaction simulation.
*/
function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) {
functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256)"));
isViewFunction = true;
}
/// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateBeforeTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
/// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize) internal virtual override {
for (uint256 i = 0; i < batchSize;) {
_validateAfterTransfer(from, to, firstTokenId + i);
unchecked {
++i;
}
}
}
function _tokenType() internal pure override returns(uint16) {
return uint16(TOKEN_TYPE_ERC721);
}
}"
},
"lib/creator-token-standards/src/access/OwnableBasic.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./OwnablePermissions.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
abstract contract OwnableBasic is OwnablePermissions, Ownable {
function _requireCallerIsContractOwner() internal view virtual override {
_checkOwner();
}
}
"
},
"lib/creator-token-standards/src/token/erc721/MetadataURI.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../../access/OwnablePermissions.sol";
abstract contract MetadataURI is OwnablePermissions {
/// @dev Base token uri
string public baseTokenURI;
/// @dev Token uri suffix/extension
string public suffixURI;
/// @dev Emitted when base URI is set.
event BaseURISet(string baseTokenURI);
/// @dev Emitted when suffix URI is set.
event SuffixURISet(string suffixURI);
/// @notice Sets base URI
function setBaseURI(string memory baseTokenURI_) public {
_requireCallerIsContractOwner();
baseTokenURI = baseTokenURI_;
emit BaseURISet(baseTokenURI_);
}
/// @notice Sets suffix URI
function setSuffixURI(string memory suffixURI_) public {
_requireCallerIsContractOwner();
suffixURI = suffixURI_;
emit SuffixURISet(suffixURI_);
}
}
abstract contract MetadataURIInitializable is MetadataURI {
error MetadataURIInitializable__URIAlreadyInitialized();
bool private _uriInitialized;
/// @dev Initializes parameters of tokens with uri values.
/// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167.
function initializeURI(string memory baseURI_, string memory suffixURI_) public {
_requireCallerIsContractOwner();
if(_uriInitialized) {
revert MetadataURIInitializable__URIAlreadyInitialized();
}
_uriInitialized = true;
baseTokenURI = baseURI_;
emit BaseURISet(baseURI_);
suffixURI = suffixURI_;
emit SuffixURISet(suffixURI_);
}
}"
},
"lib/creator-token-standards/src/programmable-royalties/BasicRoyalties.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/token/common/ERC2981.sol";
/**
* @title BasicRoyaltiesBase
* @author Limit Break, Inc.
* @dev Base functionality of an NFT mix-in contract implementing the most basic form of programmable royalties.
*/
abstract contract BasicRoyaltiesBase is ERC2981 {
event DefaultRoyaltySet(address indexed receiver, uint96 feeNumerator);
event TokenRoyaltySet(uint256 indexed tokenId, address indexed receiver, uint96 feeNumerator);
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual override {
super._setDefaultRoyalty(receiver, feeNumerator);
emit DefaultRoyaltySet(receiver, feeNumerator);
}
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual override {
super._setTokenRoyalty(tokenId, receiver, feeNumerator);
emit TokenRoyaltySet(tokenId, receiver, feeNumerator);
}
}
/**
* @title BasicRoyalties
* @author Limit Break, Inc.
* @notice Constructable BasicRoyalties Contract implementation.
*/
abstract contract BasicRoyalties is BasicRoyaltiesBase {
constructor(address receiver, uint96 feeNumerator) {
_setDefaultRoyalty(receiver, feeNumerator);
}
}
/**
* @title BasicRoyaltiesInitializable
* @author Limit Break, Inc.
* @notice Initializable BasicRoyalties Contract implementation to allow for EIP-1167 clones.
*/
abstract contract BasicRoyaltiesInitializable is BasicRoyaltiesBase {}"
},
"lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
"content": "// 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);
}
"
},
"lib/creator-token-standards/src/utils/AutomaticValidatorTransferApproval.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../access/OwnablePermissions.sol";
/**
* @title AutomaticValidatorTransferApproval
* @author Limit Break, Inc.
* @notice Base contract mix-in that provides boilerplate code giving the contract owner the
* option to automatically approve a 721-C transfer validator implementation for transfers.
*/
abstract contract AutomaticValidatorTransferApproval is OwnablePermissions {
/// @dev Emitted when the automatic approval flag is modified by the creator.
event AutomaticApprovalOfTransferValidatorSet(bool autoApproved);
/// @dev If true, the collection's transfer validator is automatically approved to transfer holder's tokens.
bool public autoApproveTransfersFromValidator;
/**
* @notice Sets if the transfer validator is automatically approved as an operator for all token owners.
*
* @dev Throws when the caller is not the contract owner.
*
* @param autoApprove If true, the collection's transfer validator will be automatically approved to
* transfer holder's tokens.
*/
function setAutomaticApprovalOfTransfersFromValidator(bool autoApprove) external {
_requireCallerIsContractOwner();
autoApproveTransfersFromValidator = autoApprove;
emit AutomaticApprovalOfTransferValidatorSet(autoApprove);
}
}"
},
"lib/creator-token-standards/src/utils/CreatorTokenBase.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../access/OwnablePermissions.sol";
import "../interfaces/ICreatorToken.sol";
import "../interfaces/ICreatorTokenLegacy.sol";
import "../interfaces/ITransferValidator.sol";
import "./TransferValidation.sol";
import "../interfaces/ITransferValidatorSetTokenType.sol";
/**
* @title CreatorTokenBase
* @author Limit Break, Inc.
* @notice CreatorTokenBaseV3 is an abstract contract that provides basic functionality for managing token
* transfer policies through an implementation of ICreatorTokenTransferValidator/ICreatorTokenTransferValidatorV2/ICreatorTokenTransferValidatorV3.
* This contract is intended to be used as a base for creator-specific token contracts, enabling customizable transfer
* restrictions and security policies.
*
* <h4>Features:</h4>
* <ul>Ownable: This contract can have an owner who can set and update the transfer validator.</ul>
* <ul>TransferValidation: Implements the basic token transfer validation interface.</ul>
*
* <h4>Benefits:</h4>
* <ul>Provides a flexible and modular way to implement custom token transfer restrictions and security policies.</ul>
* <ul>Allows creators to enforce policies such as account and codehash blacklists, whitelists, and graylists.</ul>
* <ul>Can be easily integrated into other token contracts as a base contract.</ul>
*
* <h4>Intended Usage:</h4>
* <ul>Use as a base contract for creator token implementations that require advanced transfer restrictions and
* security policies.</ul>
* <ul>Set and update the ICreatorTokenTransferValidator implementation contract to enforce desired policies for the
* creator token.</ul>
*
* <h4>Compatibility:</h4>
* <ul>Backward and Forward Compatible - V1/V2/V3 Creator Token Base will work with V1/V2/V3 Transfer Validators.</ul>
*/
abstract contract CreatorTokenBase is OwnablePermissions, TransferValidation, ICreatorToken {
/// @dev Thrown when setting a transfer validator address that has no deployed code.
error CreatorTokenBase__InvalidTransferValidatorContract();
/// @dev The default transfer validator that will be used if no transfer validator has been set by the creator.
address public constant DEFAULT_TRANSFER_VALIDATOR = address(0x721C008fdff27BF06E7E123956E2Fe03B63342e3);
/// @dev Used to determine if the default transfer validator is applied.
/// @dev Set to true when the creator sets a transfer validator address.
bool private isValidatorInitialized;
/// @dev Address of the transfer validator to apply to transactions.
address private transferValidator;
constructor() {
_emitDefaultTransferValidator();
_registerTokenType(DEFAULT_TRANSFER_VALIDATOR);
}
/**
* @notice Sets the transfer validator for the token contract.
*
* @dev Throws when provided validator contract is not the zero address and does not have code.
* @dev Throws when the caller is not the contract owner.
*
* @dev <h4>Postconditions:</h4>
* 1. The transferValidator address is updated.
* 2. The `TransferValidatorUpdated` event is emitted.
*
* @param transferValidator_ The address of the transfer validator contract.
*/
function setTransferValidator(address transferValidator_) public {
_requireCallerIsContractOwner();
bool isValidTransferValidator = transferValidator_.code.length > 0;
if(transferValidator_ != address(0) && !isValidTransferValidator) {
revert CreatorTokenBase__InvalidTransferValidatorContract();
}
emit TransferValidatorUpdated(address(getTransferValidator()), transferValidator_);
isValidatorInitialized = true;
transferValidator = transferValidator_;
_registerTokenType(transferValidator_);
}
/**
* @notice Returns the transfer validator contract address for this token contract.
*/
function getTransferValidator() public view override returns (address validator) {
validator = transferValidator;
if (validator == address(0)) {
if (!isValidatorInitialized) {
validator = DEFAULT_TRANSFER_VALIDATOR;
}
}
}
/**
* @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy.
* Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent
* and calling _validateBeforeTransfer so that checks can be properly applied during token transfers.
*
* @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the
* transfer validator is expected to pre-validate the transfer.
*
* @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is
* set to a non-zero address.
*
* @param caller The address of the caller.
* @param from The address of the sender.
* @param to The address of the receiver.
* @param tokenId The token id being transferred.
*/
function _preValidateTransfer(
address caller,
address from,
address to,
uint256 tokenId,
uint256 /*value*/) internal virtual override {
address validator = getTransferValidator();
if (validator != address(0)) {
if (msg.sender == validator) {
return;
}
ITransferValidator(validator).validateTransfer(caller, from, to, tokenId);
}
}
/**
* @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy.
* Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent
* and calling _validateBeforeTransfer so that checks can be properly applied during token transfers.
*
* @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the
* transfer validator is expected to pre-validate the transfer.
*
* @dev Used for ERC20 and ERC1155 token transfers which have an amount value to validate in the transfer validator.
* @dev The `tokenId` for ERC20 tokens should be set to `0`.
*
* @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is
* set to a non-zero address.
*
* @param caller The address of the caller.
* @param from The address of the sender.
* @param to The address of the receiver.
* @param tokenId The token id being transferred.
* @param amount The amount of token being transferred.
*/
function _preValidateTransfer(
address caller,
address from,
address to,
uint256 tokenId,
uint256 amount,
uint256 /*value*/) internal virtual override {
address validator = getTransferValidator();
if (validator != address(0)) {
if (msg.sender == validator) {
return;
}
ITransferValidator(validator).validateTransfer(caller, from, to, tokenId, amount);
}
}
function _tokenType() internal virtual pure returns(uint16);
function _registerTokenType(address validator) internal {
if (validator != address(0)) {
uint256 validatorCodeSize;
assembly {
validatorCodeSize := extcodesize(validator)
}
if(validatorCodeSize > 0) {
try ITransferValidatorSetTokenType(validator).setTokenTypeOfCollection(address(this), _tokenType()) {
} catch { }
}
}
}
/**
* @dev Used during contract deployment for constructable and cloneable creator tokens
* @dev to emit the `TransferValidatorUpdated` event signaling the validator for the contract
* @dev is the default transfer validator.
*/
function _emitDefaultTransferValidator() internal {
emit TransferValidatorUpdated(address(0), DEFAULT_TRANSFER_VALIDATOR);
}
}
"
},
"lib/creator-token-standards/src/token/erc721/ERC721OpenZeppelin.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "../../access/OwnablePermissions.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
abstract contract ERC721OpenZeppelinBase is ERC721 {
// Token name
string internal _contractName;
// Token symbol
string internal _contractSymbol;
function name() public view virtual override returns (string memory) {
return _contractName;
}
function symbol() public view virtual override returns (string memory) {
return _contractSymbol;
}
function _setNameAndSymbol(string memory name_, string memory symbol_) internal {
_contractName = name_;
_contractSymbol = symbol_;
}
}
abstract contract ERC721OpenZeppelin is ERC721OpenZeppelinBase {
constructor(string memory name_, string memory symbol_) ERC721("", "") {
_setNameAndSymbol(name_, symbol_);
}
}
abstract contract ERC721OpenZeppelinInitializable is OwnablePermissions, ERC721OpenZeppelinBase {
error ERC721OpenZeppelinInitializable__AlreadyInitializedERC721();
/// @notice Specifies whether or not the contract is initialized
bool private _erc721Initialized;
/// @dev Initializes parameters of ERC721 tokens.
/// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167.
function initializeERC721(string memory name_, string memory symbol_) public virtual {
_requireCallerIsContractOwner();
if(_erc721Initialized) {
revert ERC721OpenZeppelinInitializable__AlreadyInitializedERC721();
}
_erc721Initialized = true;
_setNameAndSymbol(name_, symbol_);
}
}
"
},
"lib/creator-token-standards/src/interfaces/ITransferValidatorSetTokenType.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ITransferValidatorSetTokenType {
function setTokenTypeOfCollection(address collection, uint16 tokenType) external;
}"
},
"lib/creator-token-standards/lib/PermitC/src/Constants.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @dev Constant bytes32 value of 0x000...000
bytes32 constant ZERO_BYTES32 = bytes32(0);
/// @dev Constant value of 0
uint256 constant ZERO = 0;
/// @dev Constant value of 1
uint256 constant ONE = 1;
/// @dev Constant value representing an open order in storage
uint8 constant ORDER_STATE_OPEN = 0;
/// @dev Constant value representing a filled order in storage
uint8 constant ORDER_STATE_FILLED = 1;
/// @dev Constant value representing a cancelled order in storage
uint8 constant ORDER_STATE_CANCELLED = 2;
/// @dev Constant value representing the ERC721 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC721 = 721;
/// @dev Constant value representing the ERC1155 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC1155 = 1155;
/// @dev Constant value representing the ERC20 token type for signatures and transfer hooks
uint256 constant TOKEN_TYPE_ERC20 = 20;
/// @dev Constant value to mask the upper bits of a signature that uses a packed `vs` value to extract `s`
bytes32 constant UPPER_BIT_MASK = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
/// @dev EIP-712 typehash used for validating signature based stored approvals
bytes32 constant UPDATE_APPROVAL_TYPEHASH =
keccak256("UpdateApprovalBySignature(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 approvalExpiration,uint256 sigDeadline,uint256 masterNonce)");
/// @dev EIP-712 typehash used for validating a single use permit without additional data
bytes32 constant SINGLE_USE_PERMIT_TYPEHASH =
keccak256("PermitTransferFrom(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce)");
/// @dev EIP-712 typehash used for validating a single use permit with additional data
string constant SINGLE_USE_PERMIT_TRANSFER_ADVANCED_TYPEHASH_STUB =
"PermitTransferFromWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce,";
/// @dev EIP-712 typehash used for validating an order permit that updates storage as it fills
string constant PERMIT_ORDER_ADVANCED_TYPEHASH_STUB =
"PermitOrderWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 salt,address operator,uint256 expiration,uint256 masterNonce,";
/// @dev Pausable flag for stored approval transfers of ERC721 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC721 = 1 << 0;
/// @dev Pausable flag for stored approval transfers of ERC1155 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC1155 = 1 << 1;
/// @dev Pausable flag for stored approval transfers of ERC20 assets
uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC20 = 1 << 2;
/// @dev Pausable flag for single use permit transfers of ERC721 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC721 = 1 << 3;
/// @dev Pausable flag for single use permit transfers of ERC1155 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC1155 = 1 << 4;
/// @dev Pausable flag for single use permit transfers of ERC20 assets
uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC20 = 1 << 5;
/// @dev Pausable flag for order fill transfers of ERC1155 assets
uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC1155 = 1 << 6;
/// @dev Pausable flag for order fill transfers of ERC20 assets
uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC20 = 1 << 7;"
},
"lib/creator-token-standards/src/access/OwnablePermissions.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/utils/Context.sol";
abstract contract OwnablePermissions is Context {
function _requireCallerIsContractOwner() internal view virtual;
}
"
},
"lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
"content": "// 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);
}
}
"
},
"lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol": {
"content": "// 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];
}
}
"
},
"lib/creator-token-standards/src/interfaces/ICreatorToken.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ICreatorToken {
event TransferValidatorUpdated(address oldValidator, address newValidator);
function getTransferValidator() external view returns (address validator);
function setTransferValidator(address validator) external;
function getTransferValidationFunction() external view returns (bytes4 functionSignature, bool isViewFunction);
}"
},
"lib/creator-token-standards/src/interfaces/ICreatorTokenLegacy.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ICreatorTokenLegacy {
event TransferValidatorUpdated(address oldValidator, address newValidator);
function getTransferValidator() external view returns (address validator);
function setTransferValidator(address validator) external;
}
"
},
"lib/creator-token-standards/src/interfaces/ITransferValidator.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
interface ITransferValidator {
function applyCollectionTransferPolicy(address caller, address from, address to) external view;
function validateTransfer(address caller, address from, address to) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId) external view;
function validateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount) external;
function beforeAuthorizedTransfer(address operator, address token, uint256 tokenId) external;
function afterAuthorizedTransfer(address token, uint256 tokenId) external;
function beforeAuthorizedTransfer(address operator, address token) external;
function afterAuthorizedTransfer(address token) external;
function beforeAuthorizedTransfer(address token, uint256 tokenId) external;
function beforeAuthorizedTransferWithAmount(address token, uint256 tokenId, uint256 amount) external;
function afterAuthorizedTransferWithAmount(address token, uint256 tokenId) external;
}"
},
"lib/creator-token-standards/src/utils/TransferValidation.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/utils/Context.sol";
/**
* @title TransferValidation
* @author Limit Break, Inc.
* @notice A mix-in that can be combined with ERC-721 contracts to provide more granular hooks.
* Openzeppelin's ERC721 contract only provides hooks for before and after transfer. This allows
* developers to validate or customize transfers within the context of a mint, a burn, or a transfer.
*/
abstract contract TransferValidation is Context {
/// @dev Thrown when the from and to address are both the zero address.
error ShouldNotMintToBurnAddress();
/*************************************************************************/
/* Transfers Without Amounts */
/*************************************************************************/
/// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks.
function _validateBeforeTransfer(address from, address to, uint256 tokenId) internal virtual {
bool fromZeroAddress = from == address(0);
bool toZeroAddress = to == address(0);
if(fromZeroAddress && toZeroAddress) {
revert ShouldNotMintToBurnAddress();
} else if(fromZeroAddress) {
_preValidateMint(_
Submitted on: 2025-10-15 16:21:10
Comments
Log in to comment.
No comments yet.