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Minimal Proxy Contract for 0xd898456e39a461b102ce4626aac191582c38acb6
Contract Name:
AssetVault
Compiler Version
v0.8.11+commit.d7f03943
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/proxy/utils/Initializable.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol"; import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol"; import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "../interfaces/ICallWhitelist.sol"; import "../interfaces/ICallDelegator.sol"; import "../interfaces/IAssetVault.sol"; import "../external/interfaces/IPunks.sol"; import "./OwnableERC721.sol"; import { AV_WithdrawsDisabled, AV_WithdrawsEnabled, AV_AlreadyInitialized, AV_CallDisallowed, AV_NonWhitelistedCall } from "../errors/Vault.sol"; /** * @title AssetVault * @author Non-Fungible Technologies, Inc. * * The Asset Vault is a vault for the storage of collateralized assets. * Designed for one-time use, like a piggy bank. Once withdrawals are enabled, * and the bank is broken, the vault can no longer be used or transferred. * * It starts in a deposit-only state. Funds cannot be withdrawn at this point. When * the owner calls "enableWithdraw()", the state is set to a withdrawEnabled state. * Withdraws cannot be disabled once enabled. This restriction protects integrations * and purchasers of AssetVaults from unexpected withdrawal and frontrunning attacks. * For example: someone buys an AV assuming it contains token X, but I withdraw token X * immediately before the sale concludes. * * @dev Asset Vaults support arbitrary external calls by either: * - the current owner of the vault * - someone who the current owner "delegates" through the ICallDelegator interface * * This is to enable airdrop claims by borrowers during loans and other forms of NFT utility. * In practice, LoanCore delegates to the borrower during the period of an open loan. * Arcade.xyz maintains an allowed and restricted list of calls to balance between utility and security. */ contract AssetVault is IAssetVault, OwnableERC721, Initializable, ERC1155Holder, ERC721Holder, ReentrancyGuard { using Address for address; using Address for address payable; using SafeERC20 for IERC20; // ============================================ STATE ============================================== /// @notice True if withdrawals are allowed out of this vault. /// @dev Note once set to true, it cannot be reverted back to false. bool public override withdrawEnabled; /// @notice Whitelist contract to determine if a given external call is allowed. ICallWhitelist public override whitelist; // ========================================== CONSTRUCTOR =========================================== /** * @dev Initializes values so initialize cannot be called on template. */ constructor() { withdrawEnabled = true; OwnableERC721._setNFT(msg.sender); } // ========================================== INITIALIZER =========================================== /** * @notice Initializes the contract, used on clone deployments. In practice, * always called by the VaultFactory contract. * * @param _whitelist The contract maintaining the whitelist of allowed * arbitrary calls. */ function initialize(address _whitelist) external override initializer { if (withdrawEnabled || ownershipToken != address(0)) revert AV_AlreadyInitialized(ownershipToken); // set ownership to inherit from the factory who deployed us // The factory should have a tokenId == uint256(address(this)) // whose owner has ownership control over this contract OwnableERC721._setNFT(msg.sender); whitelist = ICallWhitelist(_whitelist); } // ========================================= VIEW FUNCTIONS ========================================= /** * @inheritdoc OwnableERC721 */ function owner() public view override returns (address ownerAddress) { return OwnableERC721.owner(); } // ===================================== WITHDRAWAL OPERATIONS ====================================== /** * @notice Enables withdrawals on the vault. Irreversible. Caller must be the * owner of the underlying ownership NFT. * * @dev Any integration should be aware that a withdraw-enabled vault cannot * be transferred (will revert). * */ function enableWithdraw() external override onlyOwner onlyWithdrawDisabled { withdrawEnabled = true; emit WithdrawEnabled(msg.sender); } /** * @notice Withdraw entire balance of a given ERC20 token from the vault. * The vault must be in a "withdrawEnabled" state (non-transferrable), * and the caller must be the owner. * * @param token The ERC20 token to withdraw. * @param to The recipient of the withdrawn funds. */ function withdrawERC20(address token, address to) external override onlyOwner onlyWithdrawEnabled { uint256 balance = IERC20(token).balanceOf(address(this)); IERC20(token).safeTransfer(to, balance); emit WithdrawERC20(msg.sender, token, to, balance); } /** * @notice Withdraw entire balance of a given ERC20 token from the vault. * The vault must be in a "withdrawEnabled" state (non-transferrable), * and the caller must be the owner. The specified token must * exist and be owned by this contract. * * @param token The token to withdraw. * @param tokenId The ID of the NFT to withdraw. * @param to The recipient of the withdrawn token. * */ function withdrawERC721( address token, uint256 tokenId, address to ) external override onlyOwner onlyWithdrawEnabled { IERC721(token).safeTransferFrom(address(this), to, tokenId); emit WithdrawERC721(msg.sender, token, to, tokenId); } /** * @notice Withdraw entire balance of a given ERC1155 token from the vault. * The vault must be in a "withdrawEnabled" state (non-transferrable), * and the caller must be the owner. * * @param token The ERC1155 token to withdraw. * @param tokenId The ID of the token to withdraw. * @param to The recipient of the withdrawn funds. */ function withdrawERC1155( address token, uint256 tokenId, address to ) external override onlyOwner onlyWithdrawEnabled { uint256 balance = IERC1155(token).balanceOf(address(this), tokenId); IERC1155(token).safeTransferFrom(address(this), to, tokenId, balance, ""); emit WithdrawERC1155(msg.sender, token, to, tokenId, balance); } /** * @notice Withdraw entire balance of ETH from the vault. * The vault must be in a "withdrawEnabled" state (non-transferrable), * and the caller must be the owner. * * @param to The recipient of the withdrawn funds. */ function withdrawETH(address to) external override onlyOwner onlyWithdrawEnabled nonReentrant { // perform transfer uint256 balance = address(this).balance; payable(to).sendValue(balance); emit WithdrawETH(msg.sender, to, balance); } /** * @notice Withdraw cryptoPunk from the vault. * The vault must be in a "withdrawEnabled" state (non-transferrable), * and the caller must be the owner. * * @param punks The CryptoPunk contract address. * @param punkIndex The index of the CryptoPunk to withdraw (i.e. token ID). * @param to The recipient of the withdrawn punk. */ function withdrawPunk( address punks, uint256 punkIndex, address to ) external override onlyOwner onlyWithdrawEnabled { IPunks(punks).transferPunk(to, punkIndex); emit WithdrawPunk(msg.sender, punks, to, punkIndex); } // ====================================== UTILITY OPERATIONS ======================================== /** * @notice Call a function on an external contract. Intended for claiming airdrops * and other forms of NFT utility. All allowed calls are whitelist by the * "whitelist" contract. The vault must have withdrawals disabled, and the caller * must either be the owner, or the owner must have explicitly * delegated this ability to the caller through ICallDelegator interface. * * @param to The contract address to call. * @param data The data to call the contract with. */ function call(address to, bytes calldata data) external override onlyWithdrawDisabled nonReentrant { if (msg.sender != owner() && !ICallDelegator(owner()).canCallOn(msg.sender, address(this))) revert AV_CallDisallowed(msg.sender); if (!whitelist.isWhitelisted(to, bytes4(data[:4]))) revert AV_NonWhitelistedCall(to, bytes4(data[:4])); to.functionCall(data); emit Call(msg.sender, to, data); } // ============================================ HELPERS ============================================= /** * @dev For methods only callable with withdraws enabled (all withdrawal operations). */ modifier onlyWithdrawEnabled() { if (!withdrawEnabled) revert AV_WithdrawsDisabled(); _; } /** * @dev For methods only callable with withdraws disabled (call operations and enabling withdraws). */ modifier onlyWithdrawDisabled() { if (withdrawEnabled) revert AV_WithdrawsEnabled(); _; } /** * @dev Fallback "receive Ether" function. Contract can hold Ether * which can be accessed using withdrawETH. */ receive() external payable {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount ) external returns (bool); /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { require(_initializing || !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./ERC1155Receiver.sol"; /** * @dev _Available since v3.1._ */ contract ERC1155Holder is ERC1155Receiver { function onERC1155Received( address, address, uint256, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155Received.selector; } function onERC1155BatchReceived( address, address, uint256[] memory, uint256[] memory, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155BatchReceived.selector; } }
// SPDX-License-Identifier: MIT 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 be 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; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC721Receiver.sol"; /** * @dev Implementation of the {IERC721Receiver} interface. * * Accepts all token transfers. * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}. */ contract ERC721Holder is IERC721Receiver { /** * @dev See {IERC721Receiver-onERC721Received}. * * Always returns `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address, address, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC721Received.selector; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC20.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; interface ICallWhitelist { // ============= Events ============== event CallAdded(address operator, address callee, bytes4 selector); event CallRemoved(address operator, address callee, bytes4 selector); // ================ View Functions ================ function isWhitelisted(address callee, bytes4 selector) external view returns (bool); function isBlacklisted(bytes4 selector) external view returns (bool); // ================ Update Operations ================ function add(address callee, bytes4 selector) external; function remove(address callee, bytes4 selector) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; interface ICallDelegator { // ============== View Functions ============== function canCallOn(address caller, address vault) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; import "./ICallWhitelist.sol"; interface IAssetVault { // ============= Events ============== event WithdrawEnabled(address operator); event WithdrawERC20(address indexed operator, address indexed token, address recipient, uint256 amount); event WithdrawERC721(address indexed operator, address indexed token, address recipient, uint256 tokenId); event WithdrawPunk(address indexed operator, address indexed token, address recipient, uint256 tokenId); event WithdrawERC1155( address indexed operator, address indexed token, address recipient, uint256 tokenId, uint256 amount ); event WithdrawETH(address indexed operator, address indexed recipient, uint256 amount); event Call(address indexed operator, address indexed to, bytes data); // ================= Initializer ================== function initialize(address _whitelist) external; // ================ View Functions ================ function withdrawEnabled() external view returns (bool); function whitelist() external view returns (ICallWhitelist); // ================ Withdrawal Operations ================ function enableWithdraw() external; function withdrawERC20(address token, address to) external; function withdrawERC721( address token, uint256 tokenId, address to ) external; function withdrawERC1155( address token, uint256 tokenId, address to ) external; function withdrawETH(address to) external; function withdrawPunk( address punks, uint256 punkIndex, address to ) external; // ================ Utility Operations ================ function call(address to, bytes memory data) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; interface IPunks { function punkIndexToAddress(uint256 punkIndex) external view returns (address owner); function buyPunk(uint256 punkIndex) external; function transferPunk(address to, uint256 punkIndex) external; }
// SPDX-License-Identifier: GPL-3.0-only pragma solidity ^0.8.11; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import { OERC721_CallerNotOwner } from "../errors/Vault.sol"; /** * @title OwnableERC721 * @author Non-Fungible Technologies, Inc. * * Uses ERC721 ownership for access control to a set of contracts. * Ownership of underlying contract determined by ownership of a token ID, * where the token ID converts to an on-chain address. */ abstract contract OwnableERC721 { // ============================================ STATE ============================================== /// @dev The ERC721 token that contract owners should have ownership of. address public ownershipToken; // ========================================= VIEW FUNCTIONS ========================================= /** * @notice Specifies the owner of the underlying token ID, derived * from the contract address of the contract implementing. * * @return ownerAddress The owner of the underlying token derived from * the calling address. */ function owner() public view virtual returns (address ownerAddress) { return IERC721(ownershipToken).ownerOf(uint256(uint160(address(this)))); } // ============================================ HELPERS ============================================= /** * @dev Set the ownership token - the ERC721 that specified who controls * defined addresses. */ function _setNFT(address _ownershipToken) internal { ownershipToken = _ownershipToken; } /** * @dev Similar to Ownable - checks the method is being called by the owner, * where the owner is defined by the token ID in the ownership token which * maps to the calling contract address. */ modifier onlyOwner() { if (owner() != msg.sender) revert OERC721_CallerNotOwner(msg.sender); _; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.11; /** * @title VaultErrors * @author Non-Fungible Technologies, Inc. * * This file contains all custom errors for vault contracts used by the protocol. * All errors prefixed by the contract that throws them (e.g., "AV_" for Asset Vault). * Errors located in one place to make it possible to holistically look at all * asset vault failure cases. */ // ==================================== Asset Vault ====================================== /// @notice All errors prefixed with AV_, to separate from other contracts in the protocol. /** * @notice Vault withdraws must be enabled. */ error AV_WithdrawsDisabled(); /** * @notice Vault withdraws enabled. */ error AV_WithdrawsEnabled(); /** * @notice Asset vault already initialized. * * @param ownershipToken Caller of initialize function in asset vault contract. */ error AV_AlreadyInitialized(address ownershipToken); /** * @notice Call disallowed. * * @param caller Msg.sender of the function call. */ error AV_CallDisallowed(address caller); /** * @notice Call disallowed. * * @param to The contract address to call. * @param data The data to call the contract with. */ error AV_NonWhitelistedCall(address to, bytes4 data); // ==================================== Ownable ERC721 ====================================== /// @notice All errors prefixed with OERC721_, to separate from other contracts in the protocol. /** * @notice Function caller is not the owner. * * @param caller Msg.sender of the function call. */ error OERC721_CallerNotOwner(address caller); // ==================================== Vault Factory ====================================== /// @notice All errors prefixed with VF_, to separate from other contracts in the protocol. /** * @notice Template contract is invalid. * * @param template Template contract to be cloned. */ error VF_InvalidTemplate(address template); /** * @notice Global index out of bounds. * * @param tokenId AW-V2 tokenId of the asset vault. */ error VF_TokenIdOutOfBounds(uint256 tokenId); /** * @notice Cannot transfer with withdraw enabled. * * @param tokenId AW-V2 tokenId of the asset vault. */ error VF_NoTransferWithdrawEnabled(uint256 tokenId);
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC1155Receiver.sol"; import "../../../utils/introspection/ERC165.sol"; /** * @dev _Available since v3.1._ */ abstract contract ERC1155Receiver is ERC165, IERC1155Receiver { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT 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. 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. 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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT 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`, 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 be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @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 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); /** * @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; }
{ "metadata": { "bytecodeHash": "none" }, "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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Multichain Portfolio | 26 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.