{ "language": "Solidity", "sources": { "@openzeppelin/contracts/access/Ownable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" }, "@openzeppelin/contracts/interfaces/IERC1271.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC1271 standard signature validation method for\n * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].\n *\n * _Available since v4.1._\n */\ninterface IERC1271 {\n /**\n * @dev Should return whether the signature provided is valid for the provided data\n * @param hash Hash of the data to be signed\n * @param signature Signature byte array associated with _data\n */\n function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);\n}\n" }, "@openzeppelin/contracts/security/Pausable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract Pausable is Context {\n /**\n * @dev Emitted when the pause is triggered by `account`.\n */\n event Paused(address account);\n\n /**\n * @dev Emitted when the pause is lifted by `account`.\n */\n event Unpaused(address account);\n\n bool private _paused;\n\n /**\n * @dev Initializes the contract in unpaused state.\n */\n constructor() {\n _paused = false;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is not paused.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n modifier whenNotPaused() {\n _requireNotPaused();\n _;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is paused.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n modifier whenPaused() {\n _requirePaused();\n _;\n }\n\n /**\n * @dev Returns true if the contract is paused, and false otherwise.\n */\n function paused() public view virtual returns (bool) {\n return _paused;\n }\n\n /**\n * @dev Throws if the contract is paused.\n */\n function _requireNotPaused() internal view virtual {\n require(!paused(), \"Pausable: paused\");\n }\n\n /**\n * @dev Throws if the contract is not paused.\n */\n function _requirePaused() internal view virtual {\n require(paused(), \"Pausable: not paused\");\n }\n\n /**\n * @dev Triggers stopped state.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n function _pause() internal virtual whenNotPaused {\n _paused = true;\n emit Paused(_msgSender());\n }\n\n /**\n * @dev Returns to normal state.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n function _unpause() internal virtual whenPaused {\n _paused = false;\n emit Unpaused(_msgSender());\n }\n}\n" }, "@openzeppelin/contracts/security/ReentrancyGuard.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n}\n" }, "@openzeppelin/contracts/token/ERC1155/ERC1155.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC1155.sol\";\nimport \"./IERC1155Receiver.sol\";\nimport \"./extensions/IERC1155MetadataURI.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of the basic standard multi-token.\n * See https://eips.ethereum.org/EIPS/eip-1155\n * Originally based on code by Enjin: https://github.com/enjin/erc-1155\n *\n * _Available since v3.1._\n */\ncontract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {\n using Address for address;\n\n // Mapping from token ID to account balances\n mapping(uint256 => mapping(address => uint256)) private _balances;\n\n // Mapping from account to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json\n string private _uri;\n\n /**\n * @dev See {_setURI}.\n */\n constructor(string memory uri_) {\n _setURI(uri_);\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC1155).interfaceId ||\n interfaceId == type(IERC1155MetadataURI).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC1155MetadataURI-uri}.\n *\n * This implementation returns the same URI for *all* token types. It relies\n * on the token type ID substitution mechanism\n * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].\n *\n * Clients calling this function must replace the `\\{id\\}` substring with the\n * actual token type ID.\n */\n function uri(uint256) public view virtual override returns (string memory) {\n return _uri;\n }\n\n /**\n * @dev See {IERC1155-balanceOf}.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {\n require(account != address(0), \"ERC1155: address zero is not a valid owner\");\n return _balances[id][account];\n }\n\n /**\n * @dev See {IERC1155-balanceOfBatch}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] memory accounts, uint256[] memory ids)\n public\n view\n virtual\n override\n returns (uint256[] memory)\n {\n require(accounts.length == ids.length, \"ERC1155: accounts and ids length mismatch\");\n\n uint256[] memory batchBalances = new uint256[](accounts.length);\n\n for (uint256 i = 0; i < accounts.length; ++i) {\n batchBalances[i] = balanceOf(accounts[i], ids[i]);\n }\n\n return batchBalances;\n }\n\n /**\n * @dev See {IERC1155-setApprovalForAll}.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n _setApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC1155-isApprovedForAll}.\n */\n function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[account][operator];\n }\n\n /**\n * @dev See {IERC1155-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) public virtual override {\n require(\n from == _msgSender() || isApprovedForAll(from, _msgSender()),\n \"ERC1155: caller is not token owner or approved\"\n );\n _safeTransferFrom(from, to, id, amount, data);\n }\n\n /**\n * @dev See {IERC1155-safeBatchTransferFrom}.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) public virtual override {\n require(\n from == _msgSender() || isApprovedForAll(from, _msgSender()),\n \"ERC1155: caller is not token owner or approved\"\n );\n _safeBatchTransferFrom(from, to, ids, amounts, data);\n }\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function _safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: transfer to the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, from, to, ids, amounts, data);\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: insufficient balance for transfer\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n _balances[id][to] += amount;\n\n emit TransferSingle(operator, from, to, id, amount);\n\n _afterTokenTransfer(operator, from, to, ids, amounts, data);\n\n _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function _safeBatchTransferFrom(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n require(to != address(0), \"ERC1155: transfer to the zero address\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, from, to, ids, amounts, data);\n\n for (uint256 i = 0; i < ids.length; ++i) {\n uint256 id = ids[i];\n uint256 amount = amounts[i];\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: insufficient balance for transfer\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n _balances[id][to] += amount;\n }\n\n emit TransferBatch(operator, from, to, ids, amounts);\n\n _afterTokenTransfer(operator, from, to, ids, amounts, data);\n\n _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);\n }\n\n /**\n * @dev Sets a new URI for all token types, by relying on the token type ID\n * substitution mechanism\n * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].\n *\n * By this mechanism, any occurrence of the `\\{id\\}` substring in either the\n * URI or any of the amounts in the JSON file at said URI will be replaced by\n * clients with the token type ID.\n *\n * For example, the `https://token-cdn-domain/\\{id\\}.json` URI would be\n * interpreted by clients as\n * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`\n * for token type ID 0x4cce0.\n *\n * See {uri}.\n *\n * Because these URIs cannot be meaningfully represented by the {URI} event,\n * this function emits no events.\n */\n function _setURI(string memory newuri) internal virtual {\n _uri = newuri;\n }\n\n /**\n * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function _mint(\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: mint to the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _balances[id][to] += amount;\n emit TransferSingle(operator, address(0), to, id, amount);\n\n _afterTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function _mintBatch(\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n require(to != address(0), \"ERC1155: mint to the zero address\");\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n for (uint256 i = 0; i < ids.length; i++) {\n _balances[ids[i]][to] += amounts[i];\n }\n\n emit TransferBatch(operator, address(0), to, ids, amounts);\n\n _afterTokenTransfer(operator, address(0), to, ids, amounts, data);\n\n _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);\n }\n\n /**\n * @dev Destroys `amount` tokens of token type `id` from `from`\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `from` must have at least `amount` tokens of token type `id`.\n */\n function _burn(\n address from,\n uint256 id,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC1155: burn from the zero address\");\n\n address operator = _msgSender();\n uint256[] memory ids = _asSingletonArray(id);\n uint256[] memory amounts = _asSingletonArray(amount);\n\n _beforeTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: burn amount exceeds balance\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n\n emit TransferSingle(operator, from, address(0), id, amount);\n\n _afterTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n }\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n */\n function _burnBatch(\n address from,\n uint256[] memory ids,\n uint256[] memory amounts\n ) internal virtual {\n require(from != address(0), \"ERC1155: burn from the zero address\");\n require(ids.length == amounts.length, \"ERC1155: ids and amounts length mismatch\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n\n for (uint256 i = 0; i < ids.length; i++) {\n uint256 id = ids[i];\n uint256 amount = amounts[i];\n\n uint256 fromBalance = _balances[id][from];\n require(fromBalance >= amount, \"ERC1155: burn amount exceeds balance\");\n unchecked {\n _balances[id][from] = fromBalance - amount;\n }\n }\n\n emit TransferBatch(operator, from, address(0), ids, amounts);\n\n _afterTokenTransfer(operator, from, address(0), ids, amounts, \"\");\n }\n\n /**\n * @dev Approve `operator` to operate on all of `owner` tokens\n *\n * Emits an {ApprovalForAll} event.\n */\n function _setApprovalForAll(\n address owner,\n address operator,\n bool approved\n ) internal virtual {\n require(owner != operator, \"ERC1155: setting approval status for self\");\n _operatorApprovals[owner][operator] = approved;\n emit ApprovalForAll(owner, operator, approved);\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes minting\n * and burning, as well as batched variants.\n *\n * The same hook is called on both single and batched variants. For single\n * transfers, the length of the `ids` and `amounts` arrays will be 1.\n *\n * Calling conditions (for each `id` and `amount` pair):\n *\n * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * of token type `id` will be transferred to `to`.\n * - When `from` is zero, `amount` tokens of token type `id` will be minted\n * for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`\n * will be burned.\n * - `from` and `to` are never both zero.\n * - `ids` and `amounts` have the same, non-zero length.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any token transfer. This includes minting\n * and burning, as well as batched variants.\n *\n * The same hook is called on both single and batched variants. For single\n * transfers, the length of the `id` and `amount` arrays will be 1.\n *\n * Calling conditions (for each `id` and `amount` pair):\n *\n * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * of token type `id` will be transferred to `to`.\n * - When `from` is zero, `amount` tokens of token type `id` will be minted\n * for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`\n * will be burned.\n * - `from` and `to` are never both zero.\n * - `ids` and `amounts` have the same, non-zero length.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n function _doSafeTransferAcceptanceCheck(\n address operator,\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) private {\n if (to.isContract()) {\n try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {\n if (response != IERC1155Receiver.onERC1155Received.selector) {\n revert(\"ERC1155: ERC1155Receiver rejected tokens\");\n }\n } catch Error(string memory reason) {\n revert(reason);\n } catch {\n revert(\"ERC1155: transfer to non-ERC1155Receiver implementer\");\n }\n }\n }\n\n function _doSafeBatchTransferAcceptanceCheck(\n address operator,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) private {\n if (to.isContract()) {\n try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (\n bytes4 response\n ) {\n if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {\n revert(\"ERC1155: ERC1155Receiver rejected tokens\");\n }\n } catch Error(string memory reason) {\n revert(reason);\n } catch {\n revert(\"ERC1155: transfer to non-ERC1155Receiver implementer\");\n }\n }\n }\n\n function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {\n uint256[] memory array = new uint256[](1);\n array[0] = element;\n\n return array;\n }\n}\n" }, "@openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155.sol\";\n\n/**\n * @dev Interface of the optional ERC1155MetadataExtension interface, as defined\n * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155MetadataURI is IERC1155 {\n /**\n * @dev Returns the URI for token type `id`.\n *\n * If the `\\{id\\}` substring is present in the URI, it must be replaced by\n * clients with the actual token type ID.\n */\n function uri(uint256 id) external view returns (string memory);\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n /**\n * @dev Handles the receipt of a single ERC1155 token type. This function is\n * called at the end of a `safeTransferFrom` after the balance has been updated.\n *\n * NOTE: To accept the transfer, this must return\n * `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n * (i.e. 0xf23a6e61, or its own function selector).\n *\n * @param operator The address which initiated the transfer (i.e. msg.sender)\n * @param from The address which previously owned the token\n * @param id The ID of the token being transferred\n * @param value The amount of tokens being transferred\n * @param data Additional data with no specified format\n * @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n */\n function onERC1155Received(\n address operator,\n address from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external returns (bytes4);\n\n /**\n * @dev Handles the receipt of a multiple ERC1155 token types. This function\n * is called at the end of a `safeBatchTransferFrom` after the balances have\n * been updated.\n *\n * NOTE: To accept the transfer(s), this must return\n * `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n * (i.e. 0xbc197c81, or its own function selector).\n *\n * @param operator The address which initiated the batch transfer (i.e. msg.sender)\n * @param from The address which previously owned the token\n * @param ids An array containing ids of each token being transferred (order and length must match values array)\n * @param values An array containing amounts of each token being transferred (order and length must match ids array)\n * @param data Additional data with no specified format\n * @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n */\n function onERC1155BatchReceived(\n address operator,\n address from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "@openzeppelin/contracts/utils/Context.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n" }, "@openzeppelin/contracts/utils/cryptography/ECDSA.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../Strings.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS,\n InvalidSignatureV // Deprecated in v4.8\n }\n\n function _throwError(RecoverError error) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert(\"ECDSA: invalid signature\");\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert(\"ECDSA: invalid signature length\");\n } else if (error == RecoverError.InvalidSignatureS) {\n revert(\"ECDSA: invalid signature 's' value\");\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature` or error string. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength);\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, signature);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address, RecoverError) {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n *\n * _Available since v4.2._\n */\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n รท 2 + 1, and for v in (302): v โˆˆ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature);\n }\n\n return (signer, RecoverError.NoError);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from `s`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n }\n}\n" }, "@openzeppelin/contracts/utils/cryptography/EIP712.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSA.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * _Available since v3.4._\n */\nabstract contract EIP712 {\n /* solhint-disable var-name-mixedcase */\n // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to\n // invalidate the cached domain separator if the chain id changes.\n bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;\n uint256 private immutable _CACHED_CHAIN_ID;\n address private immutable _CACHED_THIS;\n\n bytes32 private immutable _HASHED_NAME;\n bytes32 private immutable _HASHED_VERSION;\n bytes32 private immutable _TYPE_HASH;\n\n /* solhint-enable var-name-mixedcase */\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n constructor(string memory name, string memory version) {\n bytes32 hashedName = keccak256(bytes(name));\n bytes32 hashedVersion = keccak256(bytes(version));\n bytes32 typeHash = keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n );\n _HASHED_NAME = hashedName;\n _HASHED_VERSION = hashedVersion;\n _CACHED_CHAIN_ID = block.chainid;\n _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);\n _CACHED_THIS = address(this);\n _TYPE_HASH = typeHash;\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) {\n return _CACHED_DOMAIN_SEPARATOR;\n } else {\n return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);\n }\n }\n\n function _buildDomainSeparator(\n bytes32 typeHash,\n bytes32 nameHash,\n bytes32 versionHash\n ) private view returns (bytes32) {\n return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n}\n" }, "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/SignatureChecker.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSA.sol\";\nimport \"../Address.sol\";\nimport \"../../interfaces/IERC1271.sol\";\n\n/**\n * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA\n * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like\n * Argent and Gnosis Safe.\n *\n * _Available since v4.1._\n */\nlibrary SignatureChecker {\n /**\n * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the\n * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.\n *\n * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n * change through time. It could return true at block N and false at block N+1 (or the opposite).\n */\n function isValidSignatureNow(\n address signer,\n bytes32 hash,\n bytes memory signature\n ) internal view returns (bool) {\n (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);\n if (error == ECDSA.RecoverError.NoError && recovered == signer) {\n return true;\n }\n\n (bool success, bytes memory result) = signer.staticcall(\n abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)\n );\n return (success &&\n result.length == 32 &&\n abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));\n }\n}\n" }, "@openzeppelin/contracts/utils/introspection/ERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n" }, "@openzeppelin/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "@openzeppelin/contracts/utils/math/Math.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // โ†’ `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // โ†’ `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10**64) {\n value /= 10**64;\n result += 64;\n }\n if (value >= 10**32) {\n value /= 10**32;\n result += 32;\n }\n if (value >= 10**16) {\n value /= 10**16;\n result += 16;\n }\n if (value >= 10**8) {\n value /= 10**8;\n result += 8;\n }\n if (value >= 10**4) {\n value /= 10**4;\n result += 4;\n }\n if (value >= 10**2) {\n value /= 10**2;\n result += 2;\n }\n if (value >= 10**1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\n }\n }\n}\n" }, "@openzeppelin/contracts/utils/Strings.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n" }, "@openzeppelin/contracts/utils/structs/BitMaps.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/BitMaps.sol)\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential.\n * Largely inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor].\n */\nlibrary BitMaps {\n struct BitMap {\n mapping(uint256 => uint256) _data;\n }\n\n /**\n * @dev Returns whether the bit at `index` is set.\n */\n function get(BitMap storage bitmap, uint256 index) internal view returns (bool) {\n uint256 bucket = index >> 8;\n uint256 mask = 1 << (index & 0xff);\n return bitmap._data[bucket] & mask != 0;\n }\n\n /**\n * @dev Sets the bit at `index` to the boolean `value`.\n */\n function setTo(\n BitMap storage bitmap,\n uint256 index,\n bool value\n ) internal {\n if (value) {\n set(bitmap, index);\n } else {\n unset(bitmap, index);\n }\n }\n\n /**\n * @dev Sets the bit at `index`.\n */\n function set(BitMap storage bitmap, uint256 index) internal {\n uint256 bucket = index >> 8;\n uint256 mask = 1 << (index & 0xff);\n bitmap._data[bucket] |= mask;\n }\n\n /**\n * @dev Unsets the bit at `index`.\n */\n function unset(BitMap storage bitmap, uint256 index) internal {\n uint256 bucket = index >> 8;\n uint256 mask = 1 << (index & 0xff);\n bitmap._data[bucket] &= ~mask;\n }\n}\n" }, "contracts/interfaces/ERC4973.sol": { "content": "// SPDX-License-Identifier: CC0-1.0\npragma solidity ^0.8.6;\n\n/** @title Account-bound tokens\n * @dev See https://eips.ethereum.org/EIPS/eip-4973\n * Note: the ERC-165 identifier for this interface is 0x5164cf47\n */\ninterface IERC4973 {\n /// @dev This emits when ownership of any ABT changes by any mechanism.\n /// This event emits when ABTs are given or equipped and unequipped\n /// (`to` == 0).\n event Transfer(\n address indexed from,\n address indexed to,\n uint256 indexed tokenId\n );\n\n\n /// @notice Count all ABTs assigned to an owner\n /// @dev ABTs assigned to the zero address are considered invalid, and this\n /// function throws for queries about the zero address.\n /// @param owner An address for whom to query the balance\n /// @return The number of ABTs owned by `address owner`, possibly zero\n function balanceOf(address owner) external view returns (uint256);\n\n\n /// @notice Find the address bound to an ERC4973 account-bound token\n /// @dev ABTs assigned to zero address are considered invalid, and queries\n /// about them do throw.\n /// @param tokenId The identifier for an ABT.\n /// @return The address of the owner bound to the ABT.\n function ownerOf(uint256 tokenId) external view returns (address);\n\n\n /// @notice Removes the `uint256 tokenId` from an account. At any time, an\n /// ABT receiver must be able to disassociate themselves from an ABT\n /// publicly through calling this function. After successfully executing this\n /// function, given the parameters for calling `function give` or\n /// `function take` a token must be re-equipable.\n /// @dev Must emit a `event Transfer` with the `address to` field pointing to\n /// the zero address.\n /// @param tokenId The identifier for an ABT.\n function unequip(uint256 tokenId) external;\n\n\n /// @notice Creates and transfers the ownership of an ABT from the\n /// transaction's `msg.sender` to `address to`.\n /// @dev Throws unless `bytes signature` represents an EIP-2089 Compact\n /// Signature of the EIP-712 structured data hash\n /// `Agreement(address active,address passive,string tokenURI)` expressing\n /// `address to`'s explicit agreement to be publicly associated with\n /// `msg.sender` and `string tokenURI`. A unique `uint256 tokenId` must be\n /// generated by type-casting the `bytes32` EIP-712 structured data hash to a\n /// `uint256`. If `bytes signature` is empty or `address to` is a contract,\n /// an EIP-1271-compatible call to `function isValidSignatureNow(...)` must\n /// be made to `address to`. A successful execution must result in the\n /// `event Transfer(msg.sender, to, tokenId)`. Once an ABT exists as an\n /// `uint256 tokenId` in the contract, `function give(...)` must throw.\n /// @param to The receiver of the ABT.\n /// @param uri A distinct Uniform Resource Identifier (URI) for a given ABT.\n /// @param signature A EIP-2089-compatible Compact Signature of the EIP-712\n /// structured data hash\n /// `Agreement(address active,address passive,string tokenURI)` signed by\n /// `address to`.\n /// @return A unique `uint256 tokenId` generated by type-casting the `bytes32`\n /// EIP-712 structured data hash to a `uint256`.\n // TODO: Remove with notes\n // function give(\n // address to,\n // string calldata uri,\n // bytes calldata signature\n // ) external returns (uint256);\n\n\n /// @notice Creates and transfers the ownership of an ABT from an\n /// `address from` to the transaction's `msg.sender`.\n /// @dev Throws unless `bytes signature` represents an EIP-2089 Compact\n /// Signature of the EIP-712 structured data hash\n /// `Agreement(address active,address passive,string tokenURI)` expressing\n /// `address from`'s explicit agreement to be publicly associated with\n /// `msg.sender` and `string tokenURI`. A unique `uint256 tokenId` must be\n /// generated by type-casting the `bytes32` EIP-712 structured data hash to a\n /// `uint256`. If `bytes signature` is empty or `address from` is a contract,\n /// an EIP-1271-compatible call to `function isValidSignatureNow(...)` must\n /// be made to `address from`. A successful execution must result in the\n /// emission of an `event Transfer(from, msg.sender, tokenId)`. Once an ABT\n /// exists as an `uint256 tokenId` in the contract, `function take(...)` must\n /// throw.\n /// @param from The origin of the ABT.\n /// @param uri A distinct Uniform Resource Identifier (URI) for a given ABT.\n /// @param signature A EIP-2089-compatible Compact Signature of the EIP-712\n /// structured data hash\n /// `Agreement(address active,address passive,string tokenURI)` signed by\n /// `address from`.\n /// @return A unique `uint256 tokenId` generated by type-casting the `bytes32`\n /// EIP-712 structured data hash to a `uint256`.\n // TODO: Remove with notes\n // function take(\n // address from,\n // string calldata uri,\n // bytes calldata signature\n // ) external returns (uint256);\n}" }, "contracts/interfaces/OldeusAuction.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\nimport {IERC4973} from './ERC4973.sol';\n\nstruct Stats {\n uint216 bidAmount;\n uint16 bidCount;\n uint16 tokenIndex;\n bool refundClaimed;\n}\n\ninterface IOldeusAuction is IERC4973 {\n function stats(address holder) external view returns (Stats memory);\n\n function refund(address payable to, uint256 refundAmount) external;\n\n function exists(address holder) external view returns (bool);\n\n function tokenId(address holder) external view returns (uint256);\n}\n" }, "contracts/Oldeus1155.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\nimport {EIP712} from '@openzeppelin/contracts/utils/cryptography/EIP712.sol';\nimport {ERC1155} from '@openzeppelin/contracts/token/ERC1155/ERC1155.sol';\n\nimport {Strings} from '@openzeppelin/contracts/utils/Strings.sol';\nimport {SignatureChecker} from '@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol';\nimport {ECDSA} from '@openzeppelin/contracts/utils/cryptography/ECDSA.sol';\nimport {BitMaps} from '@openzeppelin/contracts/utils/structs/BitMaps.sol';\nimport {ReentrancyGuard} from '@openzeppelin/contracts/security/ReentrancyGuard.sol';\nimport {Pausable} from '@openzeppelin/contracts/security/Pausable.sol';\nimport {Ownable} from '@openzeppelin/contracts/access/Ownable.sol';\nimport {IOldeusAuction, Stats} from './interfaces/OldeusAuction.sol';\nimport {UpdatableOperatorFilterer} from 'operator-filter-registry/src/UpdatableOperatorFilterer.sol';\n\nbytes32 constant CLAIM_HASH = keccak256('Claim(address claimer,address issuer,uint256 refundAmount,uint256[] tokenIds)');\n\nbytes32 constant RESERVE_HASH = keccak256('Reserve(address minter,address issuer,uint256 maxQuantity,bool isAllowlist)');\n\nstruct Reservation {\n uint16 count;\n bool claimed;\n}\n\ncontract Oldeus1155 is ERC1155, EIP712, Ownable, Pausable, ReentrancyGuard, UpdatableOperatorFilterer {\n using ECDSA for bytes32;\n using Strings for uint256;\n using BitMaps for BitMaps.BitMap;\n\n uint16 public maxSupply;\n uint16 public auctionSupply;\n uint16 public reservedSupply;\n uint64 public price;\n uint64 public allowlistPrice;\n\n bool public reserveOpen;\n bool public claimOpen;\n\n address public auctionContract;\n address public mintContract;\n address public issuer;\n mapping(address => Reservation) public reservations;\n BitMaps.BitMap private _tokenIds;\n\n event Reserve(address indexed reserver, uint256 indexed quantity);\n event Claim(address indexed claimer, uint256 indexed quantity, uint256 indexed refund);\n\n constructor(\n string memory name_,\n string memory version_,\n string memory uri_,\n address issuer_,\n address auctionContract_,\n uint16 maxSupply_,\n uint16 auctionSupply_,\n address registry_,\n address subscription_\n ) EIP712(name_, version_) ERC1155(uri_) UpdatableOperatorFilterer(registry_, subscription_, true) {\n issuer = issuer_;\n auctionContract = auctionContract_;\n maxSupply = maxSupply_;\n auctionSupply = auctionSupply_;\n }\n\n function reserve(\n uint256 quantity,\n uint256 maxQuantity,\n bool isAllowlist,\n bytes calldata signature\n ) external payable nonReentrant whenNotPaused {\n require(price > 0 && allowlistPrice > 0, 'reserve: price not set');\n require(reserveOpen, 'reserve: not open');\n require(_safeCheckReservation(maxQuantity, isAllowlist, signature), 'reserve: invalid signature');\n require(quantity + reservedSupply + auctionSupply <= maxSupply, 'reserve: insufficient supply');\n require(reservations[msg.sender].count + quantity <= maxQuantity, 'reserve: insufficient spots');\n require(msg.value >= quantity * (isAllowlist ? allowlistPrice : price), 'reserve: insufficient funds');\n\n reservations[msg.sender].count += uint16(quantity);\n reservedSupply += uint16(quantity);\n emit Reserve(msg.sender, quantity);\n }\n\n function claim(uint256[] calldata tokenIds, bytes calldata signature) external nonReentrant whenNotPaused {\n require(claimOpen, 'claim: not open');\n require(!_exists(tokenIds), 'claim: id taken');\n Reservation storage reservation = reservations[msg.sender];\n require(!reservation.claimed, 'claim: already claimed');\n uint256 refundAmount;\n if (IOldeusAuction(auctionContract).exists(msg.sender)) {\n Stats memory stats = IOldeusAuction(auctionContract).stats(msg.sender);\n if (!stats.refundClaimed) {\n uint256 auctionPayment = price * (tokenIds.length - reservation.count);\n require(stats.bidAmount >= auctionPayment, 'claim: insufficient auction bid');\n refundAmount = stats.bidAmount - auctionPayment;\n require(tokenIds.length == reservation.count + auctionPayment / price, 'claim: must claim all tokens');\n }\n }\n if (refundAmount == 0) {\n require(reservation.count == tokenIds.length, 'claim: must claim all tokens');\n }\n\n _safeCheckClaim(refundAmount, tokenIds, signature);\n uint256[] memory quantities = new uint256[](tokenIds.length);\n for (uint256 i = 0; i < tokenIds.length; ++i) {\n quantities[i] = 1;\n _tokenIds.set(tokenIds[i]);\n }\n _mintBatch(msg.sender, tokenIds, quantities, '');\n if (refundAmount > 0) {\n IOldeusAuction(auctionContract).refund(payable(msg.sender), refundAmount);\n }\n emit Claim(msg.sender, tokenIds.length, refundAmount);\n }\n\n function burnMint(address from, uint256[] calldata ids) external nonReentrant {\n require(msg.sender == mintContract, 'burnMint: sender not mintContract');\n uint256[] memory quantities = new uint256[](ids.length);\n for (uint256 i = 0; i < quantities.length; ++i) {\n quantities[i] = 1;\n }\n _burnBatch(from, ids, quantities);\n }\n\n function uri(uint256 id) public view override returns (string memory) {\n require(_tokenIds.get(id), \"uri: token doesn't exist\");\n return string.concat(super.uri(id), id.toString());\n }\n\n function owner() public view override(Ownable, UpdatableOperatorFilterer) returns (address) {\n return Ownable.owner();\n }\n\n function setAuctionSupply(uint16 auctionSupply_) external onlyOwner {\n auctionSupply = auctionSupply_;\n }\n\n function setAuctionContract(address auctionContract_) external onlyOwner {\n require(auctionContract_ != address(0), \"setAuctionContract: address can't be zero address\");\n auctionContract = auctionContract_;\n }\n\n function setMintContract(address mintContract_) external onlyOwner {\n require(mintContract_ != address(0), \"setMintContract: address can't be zero address\");\n mintContract = mintContract_;\n }\n\n function setReserveOpen(bool reserveOpen_) external onlyOwner {\n reserveOpen = reserveOpen_;\n }\n\n function setClaimOpen(bool claimOpen_) external onlyOwner {\n claimOpen = claimOpen_;\n }\n\n function setPrices(uint64 price_, uint64 allowlistPrice_) external onlyOwner {\n price = price_;\n allowlistPrice = allowlistPrice_;\n }\n\n function withdraw(address payable to) external onlyOwner {\n require(to != address(0), \"withdraw: address can't be zero address\");\n\n address contractAddress = address(this);\n to.transfer(contractAddress.balance);\n }\n\n function devMint(address[] calldata recipients, uint256[] calldata quantities, uint256[] calldata tokenIds) external onlyOwner {\n require(recipients.length == quantities.length, 'devMint: array lengths must match');\n require(!_exists(tokenIds), 'devMint: id taken');\n uint256 j;\n uint256 total;\n uint256[] memory quantities_;\n for (uint256 i = 0; i < recipients.length; ++i) {\n require(recipients[i] != address(0), \"devMint: address can't be zero address\");\n j = quantities[i];\n quantities_ = _fillArray(j, 1);\n _mintBatch(recipients[i], tokenIds[total:total + j], quantities_, '');\n for (uint256 k = 0; k < j; ++k) {\n _tokenIds.set(tokenIds[total:total + j][k]);\n }\n total += j;\n }\n require(total == tokenIds.length, 'devMint: mint count misaligned');\n reservedSupply += uint16(total);\n }\n\n function _fillArray(uint256 length, uint256 val) internal pure returns (uint256[] memory) {\n uint256[] memory quantities = new uint256[](length);\n for (uint256 i = 0; i < length; ++i) {\n quantities[i] = val;\n }\n return quantities;\n }\n\n function _safeCheckReservation(uint256 maxQuantity, bool isAllowlist, bytes calldata signature) internal view returns (bool) {\n bytes32 reservationHash = _getHash(msg.sender, issuer, maxQuantity, isAllowlist);\n require(SignatureChecker.isValidSignatureNow(issuer, reservationHash, signature), '_safeCheckReservation: invalid signature');\n return true;\n }\n\n function _safeCheckClaim(uint256 refundAmount, uint256[] calldata tokenIds, bytes calldata signature) internal view returns (bool) {\n bytes32 claimHash = _getHash(msg.sender, issuer, refundAmount, tokenIds);\n require(SignatureChecker.isValidSignatureNow(issuer, claimHash, signature), '_safeCheckClaim: invalid signature');\n return true;\n }\n\n function _getHash(address minter, address issuer, uint256 maxQuantity, bool isAllowlist) internal view returns (bytes32) {\n bytes32 structHash = keccak256(abi.encode(RESERVE_HASH, minter, issuer, maxQuantity, isAllowlist));\n\n return _hashTypedDataV4(structHash);\n }\n\n function _exists(uint256[] calldata tokenIds) internal view returns (bool) {\n for (uint256 i = 0; i < tokenIds.length; ++i) {\n if (_tokenIds.get(tokenIds[i])) {\n return true;\n }\n }\n return false;\n }\n\n function _getHash(address claimer, address issuer, uint256 refundAmount, uint256[] calldata tokenIds) internal view returns (bytes32) {\n bytes32 structHash = keccak256(abi.encode(CLAIM_HASH, claimer, issuer, refundAmount, keccak256(abi.encodePacked(tokenIds))));\n\n return _hashTypedDataV4(structHash);\n }\n\n function setURI(string calldata uri) external onlyOwner {\n _setURI(uri);\n }\n}\n" }, "operator-filter-registry/src/IOperatorFilterRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n function register(address registrant) external;\n function registerAndSubscribe(address registrant, address subscription) external;\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n function unregister(address addr) external;\n function updateOperator(address registrant, address operator, bool filtered) external;\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n function subscribe(address registrant, address registrantToSubscribe) external;\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n function subscriptionOf(address addr) external returns (address registrant);\n function subscribers(address registrant) external returns (address[] memory);\n function subscriberAt(address registrant, uint256 index) external returns (address);\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n function filteredOperators(address addr) external returns (address[] memory);\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n function isRegistered(address addr) external returns (bool);\n function codeHashOf(address addr) external returns (bytes32);\n}\n" }, "operator-filter-registry/src/UpdatableOperatorFilterer.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\n/**\n * @title UpdatableOperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry. This contract allows the Owner to update the\n * OperatorFilterRegistry address via updateOperatorFilterRegistryAddress, including to the zero address,\n * which will bypass registry checks.\n * Note that OpenSea will still disable creator fee enforcement if filtered operators begin fulfilling orders\n * on-chain, eg, if the registry is revoked or bypassed.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract UpdatableOperatorFilterer {\n error OperatorNotAllowed(address operator);\n error OnlyOwner();\n\n IOperatorFilterRegistry public operatorFilterRegistry;\n\n constructor(address _registry, address subscriptionOrRegistrantToCopy, bool subscribe) {\n IOperatorFilterRegistry registry = IOperatorFilterRegistry(_registry);\n operatorFilterRegistry = registry;\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(registry).code.length > 0) {\n if (subscribe) {\n registry.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n registry.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n registry.register(address(this));\n }\n }\n }\n }\n\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n /**\n * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero\n * address, checks will be bypassed. OnlyOwner.\n */\n function updateOperatorFilterRegistryAddress(address newRegistry) public virtual {\n if (msg.sender != owner()) {\n revert OnlyOwner();\n }\n operatorFilterRegistry = IOperatorFilterRegistry(newRegistry);\n }\n\n /**\n * @dev assume the contract has an owner, but leave specific Ownable implementation up to inheriting contract\n */\n function owner() public view virtual returns (address);\n\n function _checkFilterOperator(address operator) internal view virtual {\n IOperatorFilterRegistry registry = operatorFilterRegistry;\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(registry) != address(0) && address(registry).code.length > 0) {\n if (!registry.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 1000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} } }