Transaction Hash:
Block:
19528473 at Mar-27-2024 10:24:47 PM +UTC
Transaction Fee:
0.001940990190798768 ETH
$6.05
Gas Used:
52,012 Gas / 37.318122564 Gwei
Emitted Events:
420 |
BeaconProxy.0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef( 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef, 0x0000000000000000000000000781b192f48706310082268a4c037078f2e8b9b0, 0x000000000000000000000000a9d93a5cca9c98512c8c56547866b1db09090326, 00000000000000000000000000000000000000000000000000005af3107a4000 )
|
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x0781B192...8F2e8B9B0 |
0.02188072644259084 Eth
Nonce: 959
|
0.019939736251792072 Eth
Nonce: 960
| 0.001940990190798768 | ||
0x269616D5...12D11232A | |||||
0x9275a67f...0C1183223
Miner
| 3.312401768626623978 Eth | 3.312402020884823978 Eth | 0.0000002522582 |
Execution Trace
BeaconProxy.a9059cbb( )
AdminUpgradeabilityProxy.STATICCALL( )
-
NFTXVaultFactoryUpgradeable.DELEGATECALL( )
-
-
NFTXVaultUpgradeable.transfer( recipient=0xA9d93A5cCa9c98512C8C56547866b1db09090326, amount=100000000000000 ) => ( True )
File 1 of 4: BeaconProxy
File 2 of 4: AdminUpgradeabilityProxy
File 3 of 4: NFTXVaultFactoryUpgradeable
File 4 of 4: NFTXVaultUpgradeable
// Sources flattened with hardhat v2.0.11 https://hardhat.org // File contracts/solidity/proxy/IBeacon.sol // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function childImplementation() external view returns (address); function upgradeChildTo(address newImplementation) external; } // File contracts/solidity/proxy/Proxy.sol pragma solidity ^0.8.0; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internall call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { // solhint-disable-next-line no-inline-assembly assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internall call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback () external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive () external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overriden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual { } } // File contracts/solidity/util/Address.sol 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; // solhint-disable-next-line no-inline-assembly 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"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // File contracts/solidity/proxy/BeaconProxy.sol pragma solidity ^0.8.0; /** * @dev This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}. * * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't * conflict with the storage layout of the implementation behind the proxy. * * _Available since v3.4._ */ contract BeaconProxy is Proxy { /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 private constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Initializes the proxy with `beacon`. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This * will typically be an encoded function call, and allows initializating the storage of the proxy like a Solidity * constructor. * * Requirements: * * - `beacon` must be a contract with the interface {IBeacon}. */ constructor(address beacon, bytes memory data) payable { assert(_BEACON_SLOT == bytes32(uint256(keccak256("eip1967.proxy.beacon")) - 1)); _setBeacon(beacon, data); } /** * @dev Returns the current beacon address. */ function _beacon() internal view virtual returns (address beacon) { bytes32 slot = _BEACON_SLOT; // solhint-disable-next-line no-inline-assembly assembly { beacon := sload(slot) } } /** * @dev Returns the current implementation address of the associated beacon. */ function _implementation() internal view virtual override returns (address) { return IBeacon(_beacon()).childImplementation(); } /** * @dev Changes the proxy to use a new beacon. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. * * Requirements: * * - `beacon` must be a contract. * - The implementation returned by `beacon` must be a contract. */ function _setBeacon(address beacon, bytes memory data) internal virtual { require( Address.isContract(beacon), "BeaconProxy: beacon is not a contract" ); require( Address.isContract(IBeacon(beacon).childImplementation()), "BeaconProxy: beacon implementation is not a contract" ); bytes32 slot = _BEACON_SLOT; // solhint-disable-next-line no-inline-assembly assembly { sstore(slot, beacon) } if (data.length > 0) { Address.functionDelegateCall(_implementation(), data, "BeaconProxy: function call failed"); } } }
File 2 of 4: AdminUpgradeabilityProxy
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import './UpgradeabilityProxy.sol'; /** * @title AdminUpgradeabilityProxy * @dev This contract combines an upgradeability proxy with an authorization * mechanism for administrative tasks. * All external functions in this contract must be guarded by the * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity * feature proposal that would enable this to be done automatically. */ contract AdminUpgradeabilityProxy is UpgradeabilityProxy { /** * Contract constructor. * @param _logic address of the initial implementation. * @param _admin Address of the proxy administrator. * @param _data Data to send as msg.data to the implementation to initialize the proxied contract. * It should include the signature and the parameters of the function to be called, as described in * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding. * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped. */ constructor(address _logic, address _admin, bytes memory _data) UpgradeabilityProxy(_logic, _data) public payable { assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1)); _setAdmin(_admin); } /** * @dev Emitted when the administration has been transferred. * @param previousAdmin Address of the previous admin. * @param newAdmin Address of the new admin. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Modifier to check whether the `msg.sender` is the admin. * If it is, it will run the function. Otherwise, it will delegate the call * to the implementation. */ modifier ifAdmin() { if (msg.sender == _admin()) { _; } else { _fallback(); } } /** * @return The address of the proxy admin. */ function admin() external ifAdmin returns (address) { return _admin(); } /** * @return The address of the implementation. */ function implementation() external ifAdmin returns (address) { return _implementation(); } /** * @dev Changes the admin of the proxy. * Only the current admin can call this function. * @param newAdmin Address to transfer proxy administration to. */ function changeAdmin(address newAdmin) external ifAdmin { require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address"); emit AdminChanged(_admin(), newAdmin); _setAdmin(newAdmin); } /** * @dev Upgrade the backing implementation of the proxy. * Only the admin can call this function. * @param newImplementation Address of the new implementation. */ function upgradeTo(address newImplementation) external ifAdmin { _upgradeTo(newImplementation); } /** * @dev Upgrade the backing implementation of the proxy and call a function * on the new implementation. * This is useful to initialize the proxied contract. * @param newImplementation Address of the new implementation. * @param data Data to send as msg.data in the low level call. * It should include the signature and the parameters of the function to be called, as described in * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding. */ function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin { _upgradeTo(newImplementation); (bool success,) = newImplementation.delegatecall(data); require(success); } /** * @return adm The admin slot. */ function _admin() internal view returns (address adm) { bytes32 slot = ADMIN_SLOT; assembly { adm := sload(slot) } } /** * @dev Sets the address of the proxy admin. * @param newAdmin Address of the new proxy admin. */ function _setAdmin(address newAdmin) internal { bytes32 slot = ADMIN_SLOT; assembly { sstore(slot, newAdmin) } } /** * @dev Only fall back when the sender is not the admin. */ function _willFallback() internal override virtual { require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin"); super._willFallback(); } } // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import './Proxy.sol'; import '@openzeppelin/contracts/utils/Address.sol'; /** * @title UpgradeabilityProxy * @dev This contract implements a proxy that allows to change the * implementation address to which it will delegate. * Such a change is called an implementation upgrade. */ contract UpgradeabilityProxy is Proxy { /** * @dev Contract constructor. * @param _logic Address of the initial implementation. * @param _data Data to send as msg.data to the implementation to initialize the proxied contract. * It should include the signature and the parameters of the function to be called, as described in * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding. * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped. */ constructor(address _logic, bytes memory _data) public payable { assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)); _setImplementation(_logic); if(_data.length > 0) { (bool success,) = _logic.delegatecall(_data); require(success); } } /** * @dev Emitted when the implementation is upgraded. * @param implementation Address of the new implementation. */ event Upgraded(address indexed implementation); /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Returns the current implementation. * @return impl Address of the current implementation */ function _implementation() internal override view returns (address impl) { bytes32 slot = IMPLEMENTATION_SLOT; assembly { impl := sload(slot) } } /** * @dev Upgrades the proxy to a new implementation. * @param newImplementation Address of the new implementation. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Sets the implementation address of the proxy. * @param newImplementation Address of the new implementation. */ function _setImplementation(address newImplementation) internal { require(Address.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address"); bytes32 slot = IMPLEMENTATION_SLOT; assembly { sstore(slot, newImplementation) } } } // SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @title Proxy * @dev Implements delegation of calls to other contracts, with proper * forwarding of return values and bubbling of failures. * It defines a fallback function that delegates all calls to the address * returned by the abstract _implementation() internal function. */ abstract contract Proxy { /** * @dev Fallback function. * Implemented entirely in `_fallback`. */ fallback () payable external { _fallback(); } /** * @dev Receive function. * Implemented entirely in `_fallback`. */ receive () payable external { _fallback(); } /** * @return The Address of the implementation. */ function _implementation() internal virtual view returns (address); /** * @dev Delegates execution to an implementation contract. * This is a low level function that doesn't return to its internal call site. * It will return to the external caller whatever the implementation returns. * @param implementation Address to delegate. */ function _delegate(address implementation) internal { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev Function that is run as the first thing in the fallback function. * Can be redefined in derived contracts to add functionality. * Redefinitions must call super._willFallback(). */ function _willFallback() internal virtual { } /** * @dev fallback implementation. * Extracted to enable manual triggering. */ function _fallback() internal { _willFallback(); _delegate(_implementation()); } } // SPDX-License-Identifier: MIT pragma solidity >=0.6.2 <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; // solhint-disable-next-line no-inline-assembly 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"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
File 3 of 4: NFTXVaultFactoryUpgradeable
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./util/PausableUpgradeable.sol"; import "./proxy/UpgradeableBeacon.sol"; import "./proxy/BeaconProxy.sol"; import "./interface/INFTXVaultFactory.sol"; import "./interface/INFTXFeeDistributor.sol"; import "./NFTXVaultUpgradeable.sol"; // Authors: @0xKiwi_ and @alexgausman. contract NFTXVaultFactoryUpgradeable is PausableUpgradeable, UpgradeableBeacon, INFTXVaultFactory { uint256 private NOT_USED1; // Removed, no longer needed. address public override zapContract; // No longer needed, but keeping for compatibility. address public override feeDistributor; address public override eligibilityManager; mapping(uint256 => address) private NOT_USED3; // Removed, no longer needed. mapping(address => address[]) _vaultsForAsset; address[] internal vaults; // v1.0.1 mapping(address => bool) public override excludedFromFees; // v1.0.2 struct VaultFees { bool active; uint64 mintFee; uint64 randomRedeemFee; uint64 targetRedeemFee; uint64 randomSwapFee; uint64 targetSwapFee; } mapping(uint256 => VaultFees) private _vaultFees; uint64 public override factoryMintFee; uint64 public override factoryRandomRedeemFee; uint64 public override factoryTargetRedeemFee; uint64 public override factoryRandomSwapFee; uint64 public override factoryTargetSwapFee; // v1.0.3 mapping(address => bool) public override zapContracts; function __NFTXVaultFactory_init( address _vaultImpl, address _feeDistributor ) public override initializer { __Pausable_init(); // We use a beacon proxy so that every child contract follows the same implementation code. __UpgradeableBeacon__init(_vaultImpl); setFeeDistributor(_feeDistributor); setFactoryFees(0.1 ether, 0.05 ether, 0.1 ether, 0.05 ether, 0.1 ether); } function createVault( string memory name, string memory symbol, address _assetAddress, bool is1155, bool allowAllItems ) external virtual override returns (uint256) { onlyOwnerIfPaused(0); require(feeDistributor != address(0), "NFTX: Fee receiver unset"); require( childImplementation() != address(0), "NFTX: Vault implementation unset" ); address vaultAddr = deployVault( name, symbol, _assetAddress, is1155, allowAllItems ); uint256 _vaultId = vaults.length; _vaultsForAsset[_assetAddress].push(vaultAddr); vaults.push(vaultAddr); INFTXFeeDistributor(feeDistributor).initializeVaultReceivers(_vaultId); emit NewVault(_vaultId, vaultAddr, _assetAddress); return _vaultId; } function setFactoryFees( uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) public virtual override onlyOwner { require(mintFee <= 0.5 ether, "Cannot > 0.5 ether"); require(randomRedeemFee <= 0.5 ether, "Cannot > 0.5 ether"); require(targetRedeemFee <= 0.5 ether, "Cannot > 0.5 ether"); require(randomSwapFee <= 0.5 ether, "Cannot > 0.5 ether"); require(targetSwapFee <= 0.5 ether, "Cannot > 0.5 ether"); factoryMintFee = uint64(mintFee); factoryRandomRedeemFee = uint64(randomRedeemFee); factoryTargetRedeemFee = uint64(targetRedeemFee); factoryRandomSwapFee = uint64(randomSwapFee); factoryTargetSwapFee = uint64(targetSwapFee); emit UpdateFactoryFees( mintFee, randomRedeemFee, targetRedeemFee, randomSwapFee, targetSwapFee ); } function setVaultFees( uint256 vaultId, uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) public virtual override { if (msg.sender != owner()) { address vaultAddr = vaults[vaultId]; require(msg.sender == vaultAddr, "Not from vault"); } require(mintFee <= 0.5 ether, "Cannot > 0.5 ether"); require(randomRedeemFee <= 0.5 ether, "Cannot > 0.5 ether"); require(targetRedeemFee <= 0.5 ether, "Cannot > 0.5 ether"); require(randomSwapFee <= 0.5 ether, "Cannot > 0.5 ether"); require(targetSwapFee <= 0.5 ether, "Cannot > 0.5 ether"); _vaultFees[vaultId] = VaultFees( true, uint64(mintFee), uint64(randomRedeemFee), uint64(targetRedeemFee), uint64(randomSwapFee), uint64(targetSwapFee) ); emit UpdateVaultFees( vaultId, mintFee, randomRedeemFee, targetRedeemFee, randomSwapFee, targetSwapFee ); } function disableVaultFees(uint256 vaultId) public virtual override { if (msg.sender != owner()) { address vaultAddr = vaults[vaultId]; require(msg.sender == vaultAddr, "Not vault"); } delete _vaultFees[vaultId]; emit DisableVaultFees(vaultId); } function setFeeDistributor(address _feeDistributor) public virtual override onlyOwner { require(_feeDistributor != address(0)); emit NewFeeDistributor(feeDistributor, _feeDistributor); feeDistributor = _feeDistributor; } function setZapContract(address _zapContract, bool _excluded) public virtual override onlyOwner { emit UpdatedZapContract(_zapContract, _excluded); zapContracts[_zapContract] = _excluded; } function setFeeExclusion(address _excludedAddr, bool excluded) public virtual override onlyOwner { emit FeeExclusion(_excludedAddr, excluded); excludedFromFees[_excludedAddr] = excluded; } function setEligibilityManager(address _eligibilityManager) external virtual override onlyOwner { emit NewEligibilityManager(eligibilityManager, _eligibilityManager); eligibilityManager = _eligibilityManager; } function vaultFees(uint256 vaultId) external view virtual override returns ( uint256, uint256, uint256, uint256, uint256 ) { VaultFees memory fees = _vaultFees[vaultId]; if (fees.active) { return ( uint256(fees.mintFee), uint256(fees.randomRedeemFee), uint256(fees.targetRedeemFee), uint256(fees.randomSwapFee), uint256(fees.targetSwapFee) ); } return ( uint256(factoryMintFee), uint256(factoryRandomRedeemFee), uint256(factoryTargetRedeemFee), uint256(factoryRandomSwapFee), uint256(factoryTargetSwapFee) ); } function isLocked(uint256 lockId) external view virtual override returns (bool) { return isPaused[lockId]; } function vaultsForAsset(address assetAddress) external view virtual override returns (address[] memory) { return _vaultsForAsset[assetAddress]; } function vault(uint256 vaultId) external view virtual override returns (address) { return vaults[vaultId]; } function allVaults() external view virtual override returns (address[] memory) { return vaults; } function numVaults() external view virtual override returns (uint256) { return vaults.length; } function deployVault( string memory name, string memory symbol, address _assetAddress, bool is1155, bool allowAllItems ) internal returns (address) { address newBeaconProxy = address(new BeaconProxy(address(this), "")); NFTXVaultUpgradeable(newBeaconProxy).__NFTXVault_init( name, symbol, _assetAddress, is1155, allowAllItems ); // Manager for configuration. NFTXVaultUpgradeable(newBeaconProxy).setManager(msg.sender); // Owner for administrative functions. NFTXVaultUpgradeable(newBeaconProxy).transferOwnership(owner()); return newBeaconProxy; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./util/OwnableUpgradeable.sol"; import "./util/ReentrancyGuardUpgradeable.sol"; import "./util/EnumerableSetUpgradeable.sol"; import "./token/ERC20FlashMintUpgradeable.sol"; import "./token/ERC721SafeHolderUpgradeable.sol"; import "./token/ERC1155SafeHolderUpgradeable.sol"; import "./token/IERC1155Upgradeable.sol"; import "./token/IERC721Upgradeable.sol"; import "./interface/INFTXVault.sol"; import "./interface/INFTXEligibilityManager.sol"; import "./interface/INFTXFeeDistributor.sol"; // Authors: @0xKiwi_ and @alexgausman. contract NFTXVaultUpgradeable is OwnableUpgradeable, ERC20FlashMintUpgradeable, ReentrancyGuardUpgradeable, ERC721SafeHolderUpgradeable, ERC1155SafeHolderUpgradeable, INFTXVault { using EnumerableSetUpgradeable for EnumerableSetUpgradeable.UintSet; uint256 constant base = 10**18; uint256 public override vaultId; address public override manager; address public override assetAddress; INFTXVaultFactory public override vaultFactory; INFTXEligibility public override eligibilityStorage; uint256 randNonce; uint256 private UNUSED_FEE1; uint256 private UNUSED_FEE2; uint256 private UNUSED_FEE3; bool public override is1155; bool public override allowAllItems; bool public override enableMint; bool public override enableRandomRedeem; bool public override enableTargetRedeem; EnumerableSetUpgradeable.UintSet holdings; mapping(uint256 => uint256) quantity1155; bool public override enableRandomSwap; bool public override enableTargetSwap; function __NFTXVault_init( string memory _name, string memory _symbol, address _assetAddress, bool _is1155, bool _allowAllItems ) public virtual override initializer { __Ownable_init(); __ERC20_init(_name, _symbol); require(_assetAddress != address(0), "Asset != address(0)"); assetAddress = _assetAddress; vaultFactory = INFTXVaultFactory(msg.sender); vaultId = vaultFactory.numVaults(); is1155 = _is1155; allowAllItems = _allowAllItems; emit VaultInit(vaultId, _assetAddress, _is1155, _allowAllItems); setVaultFeatures( true, /*enableMint*/ true, /*enableRandomRedeem*/ true, /*enableTargetRedeem*/ true, /*enableRandomSwap*/ true /*enableTargetSwap*/ ); } function finalizeVault() external virtual override { setManager(address(0)); } // Added in v1.0.3. function setVaultMetadata(string calldata name_, string calldata symbol_) external virtual override { onlyPrivileged(); _setMetadata(name_, symbol_); } function setVaultFeatures( bool _enableMint, bool _enableRandomRedeem, bool _enableTargetRedeem, bool _enableRandomSwap, bool _enableTargetSwap ) public virtual override { onlyPrivileged(); enableMint = _enableMint; enableRandomRedeem = _enableRandomRedeem; enableTargetRedeem = _enableTargetRedeem; enableRandomSwap = _enableRandomSwap; enableTargetSwap = _enableTargetSwap; emit EnableMintUpdated(_enableMint); emit EnableRandomRedeemUpdated(_enableRandomRedeem); emit EnableTargetRedeemUpdated(_enableTargetRedeem); emit EnableRandomSwapUpdated(_enableRandomSwap); emit EnableTargetSwapUpdated(_enableTargetSwap); } function setFees( uint256 _mintFee, uint256 _randomRedeemFee, uint256 _targetRedeemFee, uint256 _randomSwapFee, uint256 _targetSwapFee ) public virtual override { onlyPrivileged(); vaultFactory.setVaultFees( vaultId, _mintFee, _randomRedeemFee, _targetRedeemFee, _randomSwapFee, _targetSwapFee ); } function disableVaultFees() public virtual override { onlyPrivileged(); vaultFactory.disableVaultFees(vaultId); } // This function allows for an easy setup of any eligibility module contract from the EligibilityManager. // It takes in ABI encoded parameters for the desired module. This is to make sure they can all follow // a similar interface. function deployEligibilityStorage( uint256 moduleIndex, bytes calldata initData ) external virtual override returns (address) { onlyPrivileged(); require( address(eligibilityStorage) == address(0), "NFTXVault: eligibility already set" ); INFTXEligibilityManager eligManager = INFTXEligibilityManager( vaultFactory.eligibilityManager() ); address _eligibility = eligManager.deployEligibility( moduleIndex, initData ); eligibilityStorage = INFTXEligibility(_eligibility); // Toggle this to let the contract know to check eligibility now. allowAllItems = false; emit EligibilityDeployed(moduleIndex, _eligibility); return _eligibility; } // // This function allows for the manager to set their own arbitrary eligibility contract. // // Once eligiblity is set, it cannot be unset or changed. // Disabled for launch. // function setEligibilityStorage(address _newEligibility) public virtual { // onlyPrivileged(); // require( // address(eligibilityStorage) == address(0), // "NFTXVault: eligibility already set" // ); // eligibilityStorage = INFTXEligibility(_newEligibility); // // Toggle this to let the contract know to check eligibility now. // allowAllItems = false; // emit CustomEligibilityDeployed(address(_newEligibility)); // } // The manager has control over options like fees and features function setManager(address _manager) public virtual override { onlyPrivileged(); manager = _manager; emit ManagerSet(_manager); } function mint( uint256[] calldata tokenIds, uint256[] calldata amounts /* ignored for ERC721 vaults */ ) external virtual override returns (uint256) { return mintTo(tokenIds, amounts, msg.sender); } function mintTo( uint256[] memory tokenIds, uint256[] memory amounts, /* ignored for ERC721 vaults */ address to ) public virtual override nonReentrant returns (uint256) { onlyOwnerIfPaused(1); require(enableMint, "Minting not enabled"); // Take the NFTs. uint256 count = receiveNFTs(tokenIds, amounts); // Mint to the user. _mint(to, base * count); uint256 totalFee = mintFee() * count; _chargeAndDistributeFees(to, totalFee); emit Minted(tokenIds, amounts, to); return count; } function redeem(uint256 amount, uint256[] calldata specificIds) external virtual override returns (uint256[] memory) { return redeemTo(amount, specificIds, msg.sender); } function redeemTo( uint256 amount, uint256[] memory specificIds, address to ) public virtual override nonReentrant returns (uint256[] memory) { onlyOwnerIfPaused(2); require( amount == specificIds.length || enableRandomRedeem, "NFTXVault: Random redeem not enabled" ); require( specificIds.length == 0 || enableTargetRedeem, "NFTXVault: Target redeem not enabled" ); // We burn all from sender and mint to fee receiver to reduce costs. _burn(msg.sender, base * amount); // Pay the tokens + toll. ( , uint256 _randomRedeemFee, uint256 _targetRedeemFee, , ) = vaultFees(); uint256 totalFee = (_targetRedeemFee * specificIds.length) + (_randomRedeemFee * (amount - specificIds.length)); _chargeAndDistributeFees(msg.sender, totalFee); // Withdraw from vault. uint256[] memory redeemedIds = withdrawNFTsTo(amount, specificIds, to); emit Redeemed(redeemedIds, specificIds, to); return redeemedIds; } function swap( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds ) external virtual override returns (uint256[] memory) { return swapTo(tokenIds, amounts, specificIds, msg.sender); } function swapTo( uint256[] memory tokenIds, uint256[] memory amounts, /* ignored for ERC721 vaults */ uint256[] memory specificIds, address to ) public virtual override nonReentrant returns (uint256[] memory) { onlyOwnerIfPaused(3); uint256 count; if (is1155) { for (uint256 i; i < tokenIds.length; ++i) { uint256 amount = amounts[i]; require(amount != 0, "NFTXVault: transferring < 1"); count += amount; } } else { count = tokenIds.length; } require( count == specificIds.length || enableRandomSwap, "NFTXVault: Random swap disabled" ); require( specificIds.length == 0 || enableTargetSwap, "NFTXVault: Target swap disabled" ); (, , , uint256 _randomSwapFee, uint256 _targetSwapFee) = vaultFees(); uint256 totalFee = (_targetSwapFee * specificIds.length) + (_randomSwapFee * (count - specificIds.length)); _chargeAndDistributeFees(msg.sender, totalFee); // Give the NFTs first, so the user wont get the same thing back, just to be nice. uint256[] memory ids = withdrawNFTsTo(count, specificIds, to); receiveNFTs(tokenIds, amounts); emit Swapped(tokenIds, amounts, specificIds, ids, to); return ids; } function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes memory data ) public virtual override returns (bool) { onlyOwnerIfPaused(4); return super.flashLoan(receiver, token, amount, data); } function mintFee() public view virtual override returns (uint256) { (uint256 _mintFee, , , , ) = vaultFactory.vaultFees(vaultId); return _mintFee; } function randomRedeemFee() public view virtual override returns (uint256) { (, uint256 _randomRedeemFee, , , ) = vaultFactory.vaultFees(vaultId); return _randomRedeemFee; } function targetRedeemFee() public view virtual override returns (uint256) { (, , uint256 _targetRedeemFee, , ) = vaultFactory.vaultFees(vaultId); return _targetRedeemFee; } function randomSwapFee() public view virtual override returns (uint256) { (, , , uint256 _randomSwapFee, ) = vaultFactory.vaultFees(vaultId); return _randomSwapFee; } function targetSwapFee() public view virtual override returns (uint256) { (, , , , uint256 _targetSwapFee) = vaultFactory.vaultFees(vaultId); return _targetSwapFee; } function vaultFees() public view virtual override returns ( uint256, uint256, uint256, uint256, uint256 ) { return vaultFactory.vaultFees(vaultId); } function allValidNFTs(uint256[] memory tokenIds) public view virtual override returns (bool) { if (allowAllItems) { return true; } INFTXEligibility _eligibilityStorage = eligibilityStorage; if (address(_eligibilityStorage) == address(0)) { return false; } return _eligibilityStorage.checkAllEligible(tokenIds); } function nftIdAt(uint256 holdingsIndex) external view virtual override returns (uint256) { return holdings.at(holdingsIndex); } // Added in v1.0.3. function allHoldings() external view virtual override returns (uint256[] memory) { uint256 len = holdings.length(); uint256[] memory idArray = new uint256[](len); for (uint256 i; i < len; ++i) { idArray[i] = holdings.at(i); } return idArray; } // Added in v1.0.3. function totalHoldings() external view virtual override returns (uint256) { return holdings.length(); } // Added in v1.0.3. function version() external pure returns (string memory) { return "v1.0.5"; } // We set a hook to the eligibility module (if it exists) after redeems in case anything needs to be modified. function afterRedeemHook(uint256[] memory tokenIds) internal virtual { INFTXEligibility _eligibilityStorage = eligibilityStorage; if (address(_eligibilityStorage) == address(0)) { return; } _eligibilityStorage.afterRedeemHook(tokenIds); } function receiveNFTs(uint256[] memory tokenIds, uint256[] memory amounts) internal virtual returns (uint256) { require(allValidNFTs(tokenIds), "NFTXVault: not eligible"); uint256 length = tokenIds.length; if (is1155) { // This is technically a check, so placing it before the effect. IERC1155Upgradeable(assetAddress).safeBatchTransferFrom( msg.sender, address(this), tokenIds, amounts, "" ); uint256 count; for (uint256 i; i < length; ++i) { uint256 tokenId = tokenIds[i]; uint256 amount = amounts[i]; require(amount != 0, "NFTXVault: transferring < 1"); if (quantity1155[tokenId] == 0) { holdings.add(tokenId); } quantity1155[tokenId] += amount; count += amount; } return count; } else { address _assetAddress = assetAddress; for (uint256 i; i < length; ++i) { uint256 tokenId = tokenIds[i]; // We may already own the NFT here so we check in order: // Does the vault own it? // - If so, check if its in holdings list // - If so, we reject. This means the NFT has already been claimed for. // - If not, it means we have not yet accounted for this NFT, so we continue. // -If not, we "pull" it from the msg.sender and add to holdings. transferFromERC721(_assetAddress, tokenId); holdings.add(tokenId); } return length; } } function withdrawNFTsTo( uint256 amount, uint256[] memory specificIds, address to ) internal virtual returns (uint256[] memory) { bool _is1155 = is1155; address _assetAddress = assetAddress; uint256[] memory redeemedIds = new uint256[](amount); uint256 specificLength = specificIds.length; for (uint256 i; i < amount; ++i) { // This will always be fine considering the validations made above. uint256 tokenId = i < specificLength ? specificIds[i] : getRandomTokenIdFromVault(); redeemedIds[i] = tokenId; if (_is1155) { quantity1155[tokenId] -= 1; if (quantity1155[tokenId] == 0) { holdings.remove(tokenId); } IERC1155Upgradeable(_assetAddress).safeTransferFrom( address(this), to, tokenId, 1, "" ); } else { holdings.remove(tokenId); transferERC721(_assetAddress, to, tokenId); } } afterRedeemHook(redeemedIds); return redeemedIds; } function _chargeAndDistributeFees(address user, uint256 amount) internal virtual { // Do not charge fees if the zap contract is calling // Added in v1.0.3. Changed to mapping in v1.0.5. INFTXVaultFactory _vaultFactory = vaultFactory; if (_vaultFactory.excludedFromFees(msg.sender)) { return; } // Mint fees directly to the distributor and distribute. if (amount > 0) { address feeDistributor = _vaultFactory.feeDistributor(); // Changed to a _transfer() in v1.0.3. _transfer(user, feeDistributor, amount); INFTXFeeDistributor(feeDistributor).distribute(vaultId); } } function transferERC721( address assetAddr, address to, uint256 tokenId ) internal virtual { address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d; address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB; bytes memory data; if (assetAddr == kitties) { // Changed in v1.0.4. data = abi.encodeWithSignature( "transfer(address,uint256)", to, tokenId ); } else if (assetAddr == punks) { // CryptoPunks. data = abi.encodeWithSignature( "transferPunk(address,uint256)", to, tokenId ); } else { // Default. data = abi.encodeWithSignature( "safeTransferFrom(address,address,uint256)", address(this), to, tokenId ); } (bool success, bytes memory returnData) = address(assetAddr).call(data); require(success, string(returnData)); } function transferFromERC721(address assetAddr, uint256 tokenId) internal virtual { address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d; address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB; bytes memory data; if (assetAddr == kitties) { // Cryptokitties. data = abi.encodeWithSignature( "transferFrom(address,address,uint256)", msg.sender, address(this), tokenId ); } else if (assetAddr == punks) { // CryptoPunks. // Fix here for frontrun attack. Added in v1.0.2. bytes memory punkIndexToAddress = abi.encodeWithSignature( "punkIndexToAddress(uint256)", tokenId ); (bool checkSuccess, bytes memory result) = address(assetAddr) .staticcall(punkIndexToAddress); address nftOwner = abi.decode(result, (address)); require( checkSuccess && nftOwner == msg.sender, "Not the NFT owner" ); data = abi.encodeWithSignature("buyPunk(uint256)", tokenId); } else { // Default. // Allow other contracts to "push" into the vault, safely. // If we already have the token requested, make sure we don't have it in the list to prevent duplicate minting. if ( IERC721Upgradeable(assetAddress).ownerOf(tokenId) == address(this) ) { require( !holdings.contains(tokenId), "Trying to use an owned NFT" ); return; } else { data = abi.encodeWithSignature( "safeTransferFrom(address,address,uint256)", msg.sender, address(this), tokenId ); } } (bool success, bytes memory resultData) = address(assetAddr).call(data); require(success, string(resultData)); } function getRandomTokenIdFromVault() internal virtual returns (uint256) { uint256 randomIndex = uint256( keccak256( abi.encodePacked( blockhash(block.number - 1), randNonce, block.coinbase, block.difficulty, block.timestamp ) ) ) % holdings.length(); ++randNonce; return holdings.at(randomIndex); } function onlyPrivileged() internal view { if (manager == address(0)) { require(msg.sender == owner(), "Not owner"); } else { require(msg.sender == manager, "Not manager"); } } function onlyOwnerIfPaused(uint256 lockId) internal view { require( !vaultFactory.isLocked(lockId) || msg.sender == owner(), "Paused" ); } } // 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 IERC165Upgradeable { /** * @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; /** * @dev Interface of the ERC3156 FlashBorrower, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. */ interface IERC3156FlashBorrowerUpgradeable { /** * @dev Receive a flash loan. * @param initiator The initiator of the loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @param fee The additional amount of tokens to repay. * @param data Arbitrary data structure, intended to contain user-defined parameters. * @return The keccak256 hash of "ERC3156FlashBorrower.onFlashLoan" */ function onFlashLoan( address initiator, address token, uint256 amount, uint256 fee, bytes calldata data ) external returns (bytes32); } /** * @dev Interface of the ERC3156 FlashLender, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. */ interface IERC3156FlashLenderUpgradeable { /** * @dev The amount of currency available to be lended. * @param token The loan currency. * @return The amount of `token` that can be borrowed. */ function maxFlashLoan(address token) external view returns (uint256); /** * @dev The fee to be charged for a given loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @return The amount of `token` to be charged for the loan, on top of the returned principal. */ function flashFee(address token, uint256 amount) external view returns (uint256); /** * @dev Initiate a flash loan. * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. * @param token The loan currency. * @param amount The amount of tokens lent. * @param data Arbitrary data structure, intended to contain user-defined parameters. */ function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes calldata data ) external returns (bool); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface INFTXEligibility { // Read functions. function name() external pure returns (string memory); function finalized() external view returns (bool); function targetAsset() external pure returns (address); function checkAllEligible(uint256[] calldata tokenIds) external view returns (bool); function checkEligible(uint256[] calldata tokenIds) external view returns (bool[] memory); function checkAllIneligible(uint256[] calldata tokenIds) external view returns (bool); function checkIsEligible(uint256 tokenId) external view returns (bool); // Write functions. function __NFTXEligibility_init_bytes(bytes calldata configData) external; function beforeMintHook(uint256[] calldata tokenIds) external; function afterMintHook(uint256[] calldata tokenIds) external; function beforeRedeemHook(uint256[] calldata tokenIds) external; function afterRedeemHook(uint256[] calldata tokenIds) external; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface INFTXEligibilityManager { function nftxVaultFactory() external returns (address); function eligibilityImpl() external returns (address); function deployEligibility(uint256 vaultId, bytes calldata initData) external returns (address); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface INFTXFeeDistributor { struct FeeReceiver { uint256 allocPoint; address receiver; bool isContract; } function nftxVaultFactory() external returns (address); function lpStaking() external returns (address); function treasury() external returns (address); function defaultTreasuryAlloc() external returns (uint256); function defaultLPAlloc() external returns (uint256); function allocTotal(uint256 vaultId) external returns (uint256); function specificTreasuryAlloc(uint256 vaultId) external returns (uint256); // Write functions. function __FeeDistributor__init__(address _lpStaking, address _treasury) external; function rescueTokens(address token) external; function distribute(uint256 vaultId) external; function addReceiver( uint256 _vaultId, uint256 _allocPoint, address _receiver, bool _isContract ) external; function initializeVaultReceivers(uint256 _vaultId) external; function changeMultipleReceiverAlloc( uint256[] memory _vaultIds, uint256[] memory _receiverIdxs, uint256[] memory allocPoints ) external; function changeMultipleReceiverAddress( uint256[] memory _vaultIds, uint256[] memory _receiverIdxs, address[] memory addresses, bool[] memory isContracts ) external; function changeReceiverAlloc( uint256 _vaultId, uint256 _idx, uint256 _allocPoint ) external; function changeReceiverAddress( uint256 _vaultId, uint256 _idx, address _address, bool _isContract ) external; function removeReceiver(uint256 _vaultId, uint256 _receiverIdx) external; // Configuration functions. function setTreasuryAddress(address _treasury) external; function setDefaultTreasuryAlloc(uint256 _allocPoint) external; function setSpecificTreasuryAlloc(uint256 _vaultId, uint256 _allocPoint) external; function setLPStakingAddress(address _lpStaking) external; function setNFTXVaultFactory(address _factory) external; function setDefaultLPAlloc(uint256 _allocPoint) external; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../token/IERC20Upgradeable.sol"; import "./INFTXVaultFactory.sol"; import "./INFTXEligibility.sol"; interface INFTXVault is IERC20Upgradeable { function manager() external view returns (address); function assetAddress() external view returns (address); function vaultFactory() external view returns (INFTXVaultFactory); function eligibilityStorage() external view returns (INFTXEligibility); function is1155() external view returns (bool); function allowAllItems() external view returns (bool); function enableMint() external view returns (bool); function enableRandomRedeem() external view returns (bool); function enableTargetRedeem() external view returns (bool); function enableRandomSwap() external view returns (bool); function enableTargetSwap() external view returns (bool); function vaultId() external view returns (uint256); function nftIdAt(uint256 holdingsIndex) external view returns (uint256); function allHoldings() external view returns (uint256[] memory); function totalHoldings() external view returns (uint256); function mintFee() external view returns (uint256); function randomRedeemFee() external view returns (uint256); function targetRedeemFee() external view returns (uint256); function randomSwapFee() external view returns (uint256); function targetSwapFee() external view returns (uint256); function vaultFees() external view returns ( uint256, uint256, uint256, uint256, uint256 ); event VaultInit( uint256 indexed vaultId, address assetAddress, bool is1155, bool allowAllItems ); event ManagerSet(address manager); event EligibilityDeployed(uint256 moduleIndex, address eligibilityAddr); // event CustomEligibilityDeployed(address eligibilityAddr); event EnableMintUpdated(bool enabled); event EnableRandomRedeemUpdated(bool enabled); event EnableTargetRedeemUpdated(bool enabled); event EnableRandomSwapUpdated(bool enabled); event EnableTargetSwapUpdated(bool enabled); event Minted(uint256[] nftIds, uint256[] amounts, address to); event Redeemed(uint256[] nftIds, uint256[] specificIds, address to); event Swapped( uint256[] nftIds, uint256[] amounts, uint256[] specificIds, uint256[] redeemedIds, address to ); function __NFTXVault_init( string calldata _name, string calldata _symbol, address _assetAddress, bool _is1155, bool _allowAllItems ) external; function finalizeVault() external; function setVaultMetadata(string memory name_, string memory symbol_) external; function setVaultFeatures( bool _enableMint, bool _enableRandomRedeem, bool _enableTargetRedeem, bool _enableRandomSwap, bool _enableTargetSwap ) external; function setFees( uint256 _mintFee, uint256 _randomRedeemFee, uint256 _targetRedeemFee, uint256 _randomSwapFee, uint256 _targetSwapFee ) external; function disableVaultFees() external; // This function allows for an easy setup of any eligibility module contract from the EligibilityManager. // It takes in ABI encoded parameters for the desired module. This is to make sure they can all follow // a similar interface. function deployEligibilityStorage( uint256 moduleIndex, bytes calldata initData ) external returns (address); // The manager has control over options like fees and features function setManager(address _manager) external; function mint( uint256[] calldata tokenIds, uint256[] calldata amounts /* ignored for ERC721 vaults */ ) external returns (uint256); function mintTo( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ address to ) external returns (uint256); function redeem(uint256 amount, uint256[] calldata specificIds) external returns (uint256[] calldata); function redeemTo( uint256 amount, uint256[] calldata specificIds, address to ) external returns (uint256[] calldata); function swap( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds ) external returns (uint256[] calldata); function swapTo( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds, address to ) external returns (uint256[] calldata); function allValidNFTs(uint256[] calldata tokenIds) external view returns (bool); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../proxy/IBeacon.sol"; interface INFTXVaultFactory is IBeacon { // Read functions. function numVaults() external view returns (uint256); function zapContract() external view returns (address); function zapContracts(address addr) external view returns (bool); function feeDistributor() external view returns (address); function eligibilityManager() external view returns (address); function vault(uint256 vaultId) external view returns (address); function allVaults() external view returns (address[] memory); function vaultsForAsset(address asset) external view returns (address[] memory); function isLocked(uint256 id) external view returns (bool); function excludedFromFees(address addr) external view returns (bool); function factoryMintFee() external view returns (uint64); function factoryRandomRedeemFee() external view returns (uint64); function factoryTargetRedeemFee() external view returns (uint64); function factoryRandomSwapFee() external view returns (uint64); function factoryTargetSwapFee() external view returns (uint64); function vaultFees(uint256 vaultId) external view returns ( uint256, uint256, uint256, uint256, uint256 ); event NewFeeDistributor(address oldDistributor, address newDistributor); event NewZapContract(address oldZap, address newZap); event UpdatedZapContract(address zap, bool excluded); event FeeExclusion(address feeExcluded, bool excluded); event NewEligibilityManager(address oldEligManager, address newEligManager); event NewVault( uint256 indexed vaultId, address vaultAddress, address assetAddress ); event UpdateVaultFees( uint256 vaultId, uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ); event DisableVaultFees(uint256 vaultId); event UpdateFactoryFees( uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ); // Write functions. function __NFTXVaultFactory_init( address _vaultImpl, address _feeDistributor ) external; function createVault( string calldata name, string calldata symbol, address _assetAddress, bool is1155, bool allowAllItems ) external returns (uint256); function setFeeDistributor(address _feeDistributor) external; function setEligibilityManager(address _eligibilityManager) external; function setZapContract(address _zapContract, bool _excluded) external; function setFeeExclusion(address _excludedAddr, bool excluded) external; function setFactoryFees( uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) external; function setVaultFees( uint256 vaultId, uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) external; function disableVaultFees(uint256 vaultId) external; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./Proxy.sol"; import "./IBeacon.sol"; import "../util/Address.sol"; /** * @dev This contract implements a proxy that gets the implementation address for each call from a {UpgradeableBeacon}. * * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't * conflict with the storage layout of the implementation behind the proxy. * * _Available since v3.4._ */ contract BeaconProxy is Proxy { /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 private constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Initializes the proxy with `beacon`. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This * will typically be an encoded function call, and allows initializating the storage of the proxy like a Solidity * constructor. * * Requirements: * * - `beacon` must be a contract with the interface {IBeacon}. */ constructor(address beacon, bytes memory data) payable { assert( _BEACON_SLOT == bytes32(uint256(keccak256("eip1967.proxy.beacon")) - 1) ); _setBeacon(beacon, data); } /** * @dev Returns the current beacon address. */ function _beacon() internal view virtual returns (address beacon) { bytes32 slot = _BEACON_SLOT; // solhint-disable-next-line no-inline-assembly assembly { beacon := sload(slot) } } /** * @dev Returns the current implementation address of the associated beacon. */ function _implementation() internal view virtual override returns (address) { return IBeacon(_beacon()).childImplementation(); } /** * @dev Changes the proxy to use a new beacon. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. * * Requirements: * * - `beacon` must be a contract. * - The implementation returned by `beacon` must be a contract. */ function _setBeacon(address beacon, bytes memory data) internal virtual { require( Address.isContract(beacon), "BeaconProxy: beacon is not a contract" ); require( Address.isContract(IBeacon(beacon).childImplementation()), "BeaconProxy: beacon implementation is not a contract" ); bytes32 slot = _BEACON_SLOT; // solhint-disable-next-line no-inline-assembly assembly { sstore(slot, beacon) } if (data.length > 0) { Address.functionDelegateCall( _implementation(), data, "BeaconProxy: function call failed" ); } } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function childImplementation() external view returns (address); function implementation() external view returns (address); function upgradeChildTo(address newImplementation) external; } // SPDX-License-Identifier: MIT // solhint-disable-next-line compiler-version 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 This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internall call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { // solhint-disable-next-line no-inline-assembly assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall( gas(), implementation, 0, calldatasize(), 0, 0 ) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internall call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive() external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overriden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IBeacon.sol"; import "../util/Address.sol"; import "../util/OwnableUpgradeable.sol"; /** * @dev This contract is used in conjunction with one or more instances of {BeaconProxy} to determine their * implementation contract, which is where they will delegate all function calls. * * An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon. */ contract UpgradeableBeacon is IBeacon, OwnableUpgradeable { address private _childImplementation; /** * @dev Emitted when the child implementation returned by the beacon is changed. */ event Upgraded(address indexed childImplementation); /** * @dev Sets the address of the initial implementation, and the deployer account as the owner who can upgrade the * beacon. */ function __UpgradeableBeacon__init(address childImplementation_) public initializer { _setChildImplementation(childImplementation_); } /** * @dev Returns the current child implementation address. */ function childImplementation() public view virtual override returns (address) { return _childImplementation; } function implementation() public view virtual override returns (address) { return _childImplementation; } /** * @dev Upgrades the beacon to a new implementation. * * Emits an {Upgraded} event. * * Requirements: * * - msg.sender must be the owner of the contract. * - `newChildImplementation` must be a contract. */ function upgradeChildTo(address newChildImplementation) public virtual override onlyOwner { _setChildImplementation(newChildImplementation); } /** * @dev Sets the implementation contract address for this beacon * * Requirements: * * - `newChildImplementation` must be a contract. */ function _setChildImplementation(address newChildImplementation) private { require( Address.isContract(newChildImplementation), "UpgradeableBeacon: child implementation is not a contract" ); _childImplementation = newChildImplementation; emit Upgraded(newChildImplementation); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../util/ERC165Upgradeable.sol"; import "./IERC1155ReceiverUpgradeable.sol"; /** * @dev _Available since v3.1._ */ abstract contract ERC1155ReceiverUpgradeable is ERC165Upgradeable, IERC1155ReceiverUpgradeable { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) { return interfaceId == type(IERC1155ReceiverUpgradeable).interfaceId || super.supportsInterface(interfaceId); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./ERC1155ReceiverUpgradeable.sol"; /** * @dev _Available since v3.1._ */ abstract contract ERC1155SafeHolderUpgradeable is ERC1155ReceiverUpgradeable { function onERC1155Received( address operator, address, uint256, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC1155Received.selector; } function onERC1155BatchReceived( address operator, 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 "../proxy/Initializable.sol"; import "../interface/IERC3156Upgradeable.sol"; import "./ERC20Upgradeable.sol"; /** * @dev Implementation of the ERC3156 Flash loans extension, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. * * Adds the {flashLoan} method, which provides flash loan support at the token * level. By default there is no fee, but this can be changed by overriding {flashFee}. */ abstract contract ERC20FlashMintUpgradeable is Initializable, ERC20Upgradeable, IERC3156FlashLenderUpgradeable { function __ERC20FlashMint_init() internal initializer { __Context_init_unchained(); __ERC20FlashMint_init_unchained(); } function __ERC20FlashMint_init_unchained() internal initializer {} bytes32 private constant RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan"); /** * @dev Returns the maximum amount of tokens available for loan. * @param token The address of the token that is requested. * @return The amont of token that can be loaned. */ function maxFlashLoan(address token) public view override returns (uint256) { return token == address(this) ? type(uint256).max - totalSupply() : 0; } /** * @dev Returns the fee applied when doing flash loans. By default this * implementation has 0 fees. This function can be overloaded to make * the flash loan mechanism deflationary. * @param token The token to be flash loaned. * @param amount The amount of tokens to be loaned. * @return The fees applied to the corresponding flash loan. */ function flashFee(address token, uint256 amount) public view virtual override returns (uint256) { require(token == address(this), "ERC20FlashMint: wrong token"); // silence warning about unused variable without the addition of bytecode. amount; return 0; } /** * @dev Performs a flash loan. New tokens are minted and sent to the * `receiver`, who is required to implement the {IERC3156FlashBorrower} * interface. By the end of the flash loan, the receiver is expected to own * amount + fee tokens and have them approved back to the token contract itself so * they can be burned. * @param receiver The receiver of the flash loan. Should implement the * {IERC3156FlashBorrower.onFlashLoan} interface. * @param token The token to be flash loaned. Only `address(this)` is * supported. * @param amount The amount of tokens to be loaned. * @param data An arbitrary datafield that is passed to the receiver. * @return `true` is the flash loan was successfull. */ function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes memory data ) public virtual override returns (bool) { uint256 fee = flashFee(token, amount); _mint(address(receiver), amount); require( receiver.onFlashLoan(msg.sender, token, amount, fee, data) == RETURN_VALUE, "ERC20FlashMint: invalid return value" ); uint256 currentAllowance = allowance(address(receiver), address(this)); require( currentAllowance >= amount + fee, "ERC20FlashMint: allowance does not allow refund" ); _approve( address(receiver), address(this), currentAllowance - amount - fee ); _burn(address(receiver), amount + fee); return true; } uint256[50] private __gap; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../proxy/Initializable.sol"; import "../util/ContextUpgradeable.sol"; import "./IERC20Upgradeable.sol"; import "./IERC20Metadata.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ function __ERC20_init(string memory name_, string memory symbol_) internal initializer { __Context_init_unchained(); __ERC20_init_unchained(name_, symbol_); } function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer { _name = name_; _symbol = symbol_; } function _setMetadata(string memory name_, string memory symbol_) internal { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom( address sender, address recipient, uint256 amount ) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require( currentAllowance >= amount, "ERC20: transfer amount exceeds allowance" ); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve( _msgSender(), spender, _allowances[_msgSender()][spender] + addedValue ); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require( currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero" ); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer( address sender, address recipient, uint256 amount ) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require( senderBalance >= amount, "ERC20: transfer amount exceeds balance" ); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} uint256[45] private __gap; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC721ReceiverUpgradeable.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 ERC721SafeHolderUpgradeable is IERC721ReceiverUpgradeable { /** * @dev See {IERC721Receiver-onERC721Received}. * * Always returns `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC721Received.selector; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../interface/IERC165Upgradeable.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155ReceiverUpgradeable is IERC165Upgradeable { /** @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 "../interface/IERC165Upgradeable.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 IERC1155Upgradeable is IERC165Upgradeable { /** * @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 "./IERC20Upgradeable.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20Upgradeable { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20Upgradeable { /** * @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; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721ReceiverUpgradeable { /** * @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 "../interface/IERC165Upgradeable.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721Upgradeable is IERC165Upgradeable { /** * @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; } // 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; // solhint-disable-next-line no-inline-assembly 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" ); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (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"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) private 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 // solhint-disable-next-line no-inline-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 "../proxy/Initializable.sol"; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal initializer { __Context_init_unchained(); } function __Context_init_unchained() internal initializer {} function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } uint256[50] private __gap; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../interface/IERC165Upgradeable.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 ERC165Upgradeable is IERC165Upgradeable { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSetUpgradeable { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../proxy/Initializable.sol"; import "./ContextUpgradeable.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal initializer { __Context_init_unchained(); __Ownable_init_unchained(); } function __Ownable_init_unchained() internal initializer { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require( newOwner != address(0), "Ownable: new owner is the zero address" ); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } uint256[49] private __gap; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./OwnableUpgradeable.sol"; contract PausableUpgradeable is OwnableUpgradeable { function __Pausable_init() internal initializer { __Ownable_init(); } event SetPaused(uint256 lockId, bool paused); event SetIsGuardian(address addr, bool isGuardian); mapping(address => bool) public isGuardian; mapping(uint256 => bool) public isPaused; // 0 : createVault // 1 : mint // 2 : redeem // 3 : swap // 4 : flashloan function onlyOwnerIfPaused(uint256 lockId) public view virtual { require(!isPaused[lockId] || msg.sender == owner(), "Paused"); } function unpause(uint256 lockId) public virtual onlyOwner { isPaused[lockId] = false; emit SetPaused(lockId, false); } function pause(uint256 lockId) public virtual { require(isGuardian[msg.sender], "Can't pause"); isPaused[lockId] = true; emit SetPaused(lockId, true); } function setIsGuardian(address addr, bool _isGuardian) public virtual onlyOwner { isGuardian[addr] = _isGuardian; emit SetIsGuardian(addr, _isGuardian); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../proxy/Initializable.sol"; /** * @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 ReentrancyGuardUpgradeable is Initializable { // 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; function __ReentrancyGuard_init() internal initializer { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal initializer { _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; } uint256[49] private __gap; }
File 4 of 4: NFTXVaultUpgradeable
/** *Submitted for verification at Etherscan.io on 2022-06-08 */ // Sources flattened with hardhat v2.8.2 https://hardhat.org // File contracts/solidity/interface/INFTXEligibility.sol // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface INFTXEligibility { // Read functions. function name() external pure returns (string memory); function finalized() external view returns (bool); function targetAsset() external pure returns (address); function checkAllEligible(uint256[] calldata tokenIds) external view returns (bool); function checkEligible(uint256[] calldata tokenIds) external view returns (bool[] memory); function checkAllIneligible(uint256[] calldata tokenIds) external view returns (bool); function checkIsEligible(uint256 tokenId) external view returns (bool); // Write functions. function __NFTXEligibility_init_bytes(bytes calldata configData) external; function beforeMintHook(uint256[] calldata tokenIds) external; function afterMintHook(uint256[] calldata tokenIds) external; function beforeRedeemHook(uint256[] calldata tokenIds) external; function afterRedeemHook(uint256[] calldata tokenIds) external; } // File contracts/solidity/token/IERC20Upgradeable.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20Upgradeable { /** * @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); } // File contracts/solidity/proxy/IBeacon.sol pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function childImplementation() external view returns (address); function upgradeChildTo(address newImplementation) external; } // File contracts/solidity/interface/INFTXVaultFactory.sol pragma solidity ^0.8.0; interface INFTXVaultFactory is IBeacon { // Read functions. function numVaults() external view returns (uint256); function zapContract() external view returns (address); function feeDistributor() external view returns (address); function eligibilityManager() external view returns (address); function vault(uint256 vaultId) external view returns (address); function allVaults() external view returns (address[] memory); function vaultsForAsset(address asset) external view returns (address[] memory); function isLocked(uint256 id) external view returns (bool); function excludedFromFees(address addr) external view returns (bool); function factoryMintFee() external view returns (uint64); function factoryRandomRedeemFee() external view returns (uint64); function factoryTargetRedeemFee() external view returns (uint64); function factoryRandomSwapFee() external view returns (uint64); function factoryTargetSwapFee() external view returns (uint64); function vaultFees(uint256 vaultId) external view returns (uint256, uint256, uint256, uint256, uint256); event NewFeeDistributor(address oldDistributor, address newDistributor); event NewZapContract(address oldZap, address newZap); event FeeExclusion(address feeExcluded, bool excluded); event NewEligibilityManager(address oldEligManager, address newEligManager); event NewVault(uint256 indexed vaultId, address vaultAddress, address assetAddress); event UpdateVaultFees(uint256 vaultId, uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee); event DisableVaultFees(uint256 vaultId); event UpdateFactoryFees(uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee); // Write functions. function __NFTXVaultFactory_init(address _vaultImpl, address _feeDistributor) external; function createVault( string calldata name, string calldata symbol, address _assetAddress, bool is1155, bool allowAllItems ) external returns (uint256); function setFeeDistributor(address _feeDistributor) external; function setEligibilityManager(address _eligibilityManager) external; function setZapContract(address _zapContract) external; function setFeeExclusion(address _excludedAddr, bool excluded) external; function setFactoryFees( uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) external; function setVaultFees( uint256 vaultId, uint256 mintFee, uint256 randomRedeemFee, uint256 targetRedeemFee, uint256 randomSwapFee, uint256 targetSwapFee ) external; function disableVaultFees(uint256 vaultId) external; } // File contracts/solidity/interface/INFTXVault.sol pragma solidity ^0.8.0; interface INFTXVault is IERC20Upgradeable { function manager() external view returns (address); function assetAddress() external view returns (address); function vaultFactory() external view returns (INFTXVaultFactory); function eligibilityStorage() external view returns (INFTXEligibility); function is1155() external view returns (bool); function allowAllItems() external view returns (bool); function enableMint() external view returns (bool); function enableRandomRedeem() external view returns (bool); function enableTargetRedeem() external view returns (bool); function enableRandomSwap() external view returns (bool); function enableTargetSwap() external view returns (bool); function vaultId() external view returns (uint256); function nftIdAt(uint256 holdingsIndex) external view returns (uint256); function allHoldings() external view returns (uint256[] memory); function totalHoldings() external view returns (uint256); function mintFee() external view returns (uint256); function randomRedeemFee() external view returns (uint256); function targetRedeemFee() external view returns (uint256); function randomSwapFee() external view returns (uint256); function targetSwapFee() external view returns (uint256); function vaultFees() external view returns (uint256, uint256, uint256, uint256, uint256); event VaultInit( uint256 indexed vaultId, address assetAddress, bool is1155, bool allowAllItems ); event ManagerSet(address manager); event EligibilityDeployed(uint256 moduleIndex, address eligibilityAddr); // event CustomEligibilityDeployed(address eligibilityAddr); event EnableMintUpdated(bool enabled); event EnableRandomRedeemUpdated(bool enabled); event EnableTargetRedeemUpdated(bool enabled); event EnableRandomSwapUpdated(bool enabled); event EnableTargetSwapUpdated(bool enabled); event Minted(uint256[] nftIds, uint256[] amounts, address to); event Redeemed(uint256[] nftIds, uint256[] specificIds, address to); event Swapped( uint256[] nftIds, uint256[] amounts, uint256[] specificIds, uint256[] redeemedIds, address to ); function __NFTXVault_init( string calldata _name, string calldata _symbol, address _assetAddress, bool _is1155, bool _allowAllItems ) external; function finalizeVault() external; function setVaultMetadata( string memory name_, string memory symbol_ ) external; function setVaultFeatures( bool _enableMint, bool _enableRandomRedeem, bool _enableTargetRedeem, bool _enableRandomSwap, bool _enableTargetSwap ) external; function setFees( uint256 _mintFee, uint256 _randomRedeemFee, uint256 _targetRedeemFee, uint256 _randomSwapFee, uint256 _targetSwapFee ) external; function disableVaultFees() external; // This function allows for an easy setup of any eligibility module contract from the EligibilityManager. // It takes in ABI encoded parameters for the desired module. This is to make sure they can all follow // a similar interface. function deployEligibilityStorage( uint256 moduleIndex, bytes calldata initData ) external returns (address); // The manager has control over options like fees and features function setManager(address _manager) external; function mint( uint256[] calldata tokenIds, uint256[] calldata amounts /* ignored for ERC721 vaults */ ) external returns (uint256); function mintTo( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ address to ) external returns (uint256); function redeem(uint256 amount, uint256[] calldata specificIds) external returns (uint256[] calldata); function redeemTo( uint256 amount, uint256[] calldata specificIds, address to ) external returns (uint256[] calldata); function swap( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds ) external returns (uint256[] calldata); function swapTo( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds, address to ) external returns (uint256[] calldata); function allValidNFTs(uint256[] calldata tokenIds) external view returns (bool); } // File contracts/solidity/interface/INFTXEligibilityManager.sol pragma solidity ^0.8.0; interface INFTXEligibilityManager { function nftxVaultFactory() external returns (address); function eligibilityImpl() external returns (address); function deployEligibility(uint256 vaultId, bytes calldata initData) external returns (address); } // File contracts/solidity/interface/INFTXFeeDistributor.sol pragma solidity ^0.8.0; interface INFTXFeeDistributor { struct FeeReceiver { uint256 allocPoint; address receiver; bool isContract; } function nftxVaultFactory() external returns (address); function lpStaking() external returns (address); function treasury() external returns (address); function defaultTreasuryAlloc() external returns (uint256); function defaultLPAlloc() external returns (uint256); function allocTotal(uint256 vaultId) external returns (uint256); function specificTreasuryAlloc(uint256 vaultId) external returns (uint256); // Write functions. function __FeeDistributor__init__(address _lpStaking, address _treasury) external; function rescueTokens(address token) external; function distribute(uint256 vaultId) external; function addReceiver(uint256 _vaultId, uint256 _allocPoint, address _receiver, bool _isContract) external; function initializeVaultReceivers(uint256 _vaultId) external; function changeMultipleReceiverAlloc( uint256[] memory _vaultIds, uint256[] memory _receiverIdxs, uint256[] memory allocPoints ) external; function changeMultipleReceiverAddress( uint256[] memory _vaultIds, uint256[] memory _receiverIdxs, address[] memory addresses, bool[] memory isContracts ) external; function changeReceiverAlloc(uint256 _vaultId, uint256 _idx, uint256 _allocPoint) external; function changeReceiverAddress(uint256 _vaultId, uint256 _idx, address _address, bool _isContract) external; function removeReceiver(uint256 _vaultId, uint256 _receiverIdx) external; // Configuration functions. function setTreasuryAddress(address _treasury) external; function setDefaultTreasuryAlloc(uint256 _allocPoint) external; function setSpecificTreasuryAlloc(uint256 _vaultId, uint256 _allocPoint) external; function setLPStakingAddress(address _lpStaking) external; function setNFTXVaultFactory(address _factory) external; function setDefaultLPAlloc(uint256 _allocPoint) external; } // File contracts/solidity/interface/IERC3156Upgradeable.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC3156 FlashBorrower, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. */ interface IERC3156FlashBorrowerUpgradeable { /** * @dev Receive a flash loan. * @param initiator The initiator of the loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @param fee The additional amount of tokens to repay. * @param data Arbitrary data structure, intended to contain user-defined parameters. * @return The keccak256 hash of "ERC3156FlashBorrower.onFlashLoan" */ function onFlashLoan( address initiator, address token, uint256 amount, uint256 fee, bytes calldata data ) external returns (bytes32); } /** * @dev Interface of the ERC3156 FlashLender, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. */ interface IERC3156FlashLenderUpgradeable { /** * @dev The amount of currency available to be lended. * @param token The loan currency. * @return The amount of `token` that can be borrowed. */ function maxFlashLoan( address token ) external view returns (uint256); /** * @dev The fee to be charged for a given loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @return The amount of `token` to be charged for the loan, on top of the returned principal. */ function flashFee( address token, uint256 amount ) external view returns (uint256); /** * @dev Initiate a flash loan. * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. * @param token The loan currency. * @param amount The amount of tokens lent. * @param data Arbitrary data structure, intended to contain user-defined parameters. */ function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes calldata data ) external returns (bool); } // File contracts/solidity/token/IERC20Metadata.sol pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20Upgradeable { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File contracts/solidity/proxy/Initializable.sol // solhint-disable-next-line compiler-version 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; } } } // File contracts/solidity/util/ContextUpgradeable.sol pragma solidity ^0.8.0; /* * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal initializer { __Context_init_unchained(); } function __Context_init_unchained() internal initializer { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691 return msg.data; } uint256[50] private __gap; } // File contracts/solidity/token/ERC20Upgradeable.sol pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin guidelines: functions revert instead * of returning `false` on failure. This behavior is nonetheless conventional * and does not conflict with the expectations of ERC20 applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20Metadata { mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ function __ERC20_init(string memory name_, string memory symbol_) internal initializer { __Context_init_unchained(); __ERC20_init_unchained(name_, symbol_); } function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer { _name = name_; _symbol = symbol_; } function _setMetadata(string memory name_, string memory symbol_) internal { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5,05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `recipient` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address recipient, uint256 amount) public virtual override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { _approve(_msgSender(), spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * Requirements: * * - `sender` and `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. * - the caller must have allowance for ``sender``'s tokens of at least * `amount`. */ function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) { _transfer(sender, recipient, amount); uint256 currentAllowance = _allowances[sender][_msgSender()]; require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance"); _approve(sender, _msgSender(), currentAllowance - amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { uint256 currentAllowance = _allowances[_msgSender()][spender]; require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); _approve(_msgSender(), spender, currentAllowance - subtractedValue); return true; } /** * @dev Moves tokens `amount` from `sender` to `recipient`. * * This is internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `sender` cannot be the zero address. * - `recipient` cannot be the zero address. * - `sender` must have a balance of at least `amount`. */ function _transfer(address sender, address recipient, uint256 amount) internal virtual { require(sender != address(0), "ERC20: transfer from the zero address"); require(recipient != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(sender, recipient, amount); uint256 senderBalance = _balances[sender]; require(senderBalance >= amount, "ERC20: transfer amount exceeds balance"); _balances[sender] = senderBalance - amount; _balances[recipient] += amount; emit Transfer(sender, recipient, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); _balances[account] = accountBalance - amount; _totalSupply -= amount; emit Transfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be to transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { } uint256[45] private __gap; } // File contracts/solidity/token/ERC20FlashMintUpgradeable.sol pragma solidity ^0.8.0; /** * @dev Implementation of the ERC3156 Flash loans extension, as defined in * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. * * Adds the {flashLoan} method, which provides flash loan support at the token * level. By default there is no fee, but this can be changed by overriding {flashFee}. */ abstract contract ERC20FlashMintUpgradeable is Initializable, ERC20Upgradeable, IERC3156FlashLenderUpgradeable { function __ERC20FlashMint_init() internal initializer { __Context_init_unchained(); __ERC20FlashMint_init_unchained(); } function __ERC20FlashMint_init_unchained() internal initializer { } bytes32 constant private RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan"); /** * @dev Returns the maximum amount of tokens available for loan. * @param token The address of the token that is requested. * @return The amont of token that can be loaned. */ function maxFlashLoan(address token) public view override returns (uint256) { return token == address(this) ? type(uint256).max - totalSupply() : 0; } /** * @dev Returns the fee applied when doing flash loans. By default this * implementation has 0 fees. This function can be overloaded to make * the flash loan mechanism deflationary. * @param token The token to be flash loaned. * @param amount The amount of tokens to be loaned. * @return The fees applied to the corresponding flash loan. */ function flashFee(address token, uint256 amount) public view virtual override returns (uint256) { require(token == address(this), "ERC20FlashMint: wrong token"); // silence warning about unused variable without the addition of bytecode. amount; return 0; } /** * @dev Performs a flash loan. New tokens are minted and sent to the * `receiver`, who is required to implement the {IERC3156FlashBorrower} * interface. By the end of the flash loan, the receiver is expected to own * amount + fee tokens and have them approved back to the token contract itself so * they can be burned. * @param receiver The receiver of the flash loan. Should implement the * {IERC3156FlashBorrower.onFlashLoan} interface. * @param token The token to be flash loaned. Only `address(this)` is * supported. * @param amount The amount of tokens to be loaned. * @param data An arbitrary datafield that is passed to the receiver. * @return `true` is the flash loan was successfull. */ function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes memory data ) public virtual override returns (bool) { uint256 fee = flashFee(token, amount); _mint(address(receiver), amount); require(receiver.onFlashLoan(msg.sender, token, amount, fee, data) == RETURN_VALUE, "ERC20FlashMint: invalid return value"); uint256 currentAllowance = allowance(address(receiver), address(this)); require(currentAllowance >= amount + fee, "ERC20FlashMint: allowance does not allow refund"); _approve(address(receiver), address(this), currentAllowance - amount - fee); _burn(address(receiver), amount + fee); return true; } uint256[50] private __gap; } // File contracts/solidity/token/IERC721ReceiverUpgradeable.sol pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721ReceiverUpgradeable { /** * @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); } // File contracts/solidity/token/ERC721SafeHolderUpgradeable.sol pragma solidity ^0.8.0; /** * @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 ERC721SafeHolderUpgradeable is IERC721ReceiverUpgradeable { /** * @dev See {IERC721Receiver-onERC721Received}. * * Always returns `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address, uint256, bytes memory ) public virtual override returns (bytes4) { return this.onERC721Received.selector; } } // File contracts/solidity/interface/IERC165Upgradeable.sol pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @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); } // File contracts/solidity/token/IERC1155ReceiverUpgradeable.sol pragma solidity ^0.8.0; /** * @dev _Available since v3.1._ */ interface IERC1155ReceiverUpgradeable is IERC165Upgradeable { /** @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); } // File contracts/solidity/util/ERC165Upgradeable.sol pragma solidity ^0.8.0; /** * @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 ERC165Upgradeable is IERC165Upgradeable { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } } // File contracts/solidity/token/ERC1155ReceiverUpgradeable.sol pragma solidity ^0.8.0; /** * @dev _Available since v3.1._ */ abstract contract ERC1155ReceiverUpgradeable is ERC165Upgradeable, IERC1155ReceiverUpgradeable { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) { return interfaceId == type(IERC1155ReceiverUpgradeable).interfaceId || super.supportsInterface(interfaceId); } } // File contracts/solidity/token/ERC1155SafeHolderUpgradeable.sol pragma solidity ^0.8.0; /** * @dev _Available since v3.1._ */ abstract contract ERC1155SafeHolderUpgradeable is ERC1155ReceiverUpgradeable { function onERC1155Received(address operator, address, uint256, uint256, bytes memory) public virtual override returns (bytes4) { return this.onERC1155Received.selector; } function onERC1155BatchReceived(address operator, address, uint256[] memory, uint256[] memory, bytes memory) public virtual override returns (bytes4) { return this.onERC1155BatchReceived.selector; } } // File contracts/solidity/token/IERC721Upgradeable.sol pragma solidity ^0.8.0; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721Upgradeable is IERC165Upgradeable { /** * @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; } // File contracts/solidity/token/IERC1155Upgradeable.sol pragma solidity ^0.8.0; /** * @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 IERC1155Upgradeable is IERC165Upgradeable { /** * @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; } // File contracts/solidity/util/OwnableUpgradeable.sol pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal initializer { __Context_init_unchained(); __Ownable_init_unchained(); } function __Ownable_init_unchained() internal initializer { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } uint256[49] private __gap; } // File contracts/solidity/util/ReentrancyGuardUpgradeable.sol 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 ReentrancyGuardUpgradeable is Initializable { // 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; function __ReentrancyGuard_init() internal initializer { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal initializer { _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; } uint256[49] private __gap; } // File contracts/solidity/util/EnumerableSetUpgradeable.sol pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSetUpgradeable { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping (bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastvalue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastvalue; // Update the index for the moved value set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } } // File contracts/solidity/NFTXVaultUpgradeable.sol pragma solidity ^0.8.0; // Authors: @0xKiwi_ and @alexgausman. contract NFTXVaultUpgradeable is OwnableUpgradeable, ERC20FlashMintUpgradeable, ReentrancyGuardUpgradeable, ERC721SafeHolderUpgradeable, ERC1155SafeHolderUpgradeable, INFTXVault { using EnumerableSetUpgradeable for EnumerableSetUpgradeable.UintSet; uint256 constant base = 10**18; uint256 public override vaultId; address public override manager; address public override assetAddress; INFTXVaultFactory public override vaultFactory; INFTXEligibility public override eligibilityStorage; uint256 randNonce; uint256 private UNUSED_FEE1; uint256 private UNUSED_FEE2; uint256 private UNUSED_FEE3; bool public override is1155; bool public override allowAllItems; bool public override enableMint; bool public override enableRandomRedeem; bool public override enableTargetRedeem; EnumerableSetUpgradeable.UintSet holdings; mapping(uint256 => uint256) quantity1155; bool public override enableRandomSwap; bool public override enableTargetSwap; event VaultShutdown(address assetAddress, uint256 numItems, address recipient); event MetaDataChange(string oldName, string oldSymbol, string newName, string newSymbol); function __NFTXVault_init( string memory _name, string memory _symbol, address _assetAddress, bool _is1155, bool _allowAllItems ) public override virtual initializer { __Ownable_init(); __ERC20_init(_name, _symbol); require(_assetAddress != address(0), "Asset != address(0)"); assetAddress = _assetAddress; vaultFactory = INFTXVaultFactory(msg.sender); vaultId = vaultFactory.numVaults(); is1155 = _is1155; allowAllItems = _allowAllItems; emit VaultInit(vaultId, _assetAddress, _is1155, _allowAllItems); setVaultFeatures(true /*enableMint*/, true /*enableRandomRedeem*/, true /*enableTargetRedeem*/, true /*enableRandomSwap*/, true /*enableTargetSwap*/); } function finalizeVault() external override virtual { setManager(address(0)); } // Added in v1.0.3. function setVaultMetadata( string calldata name_, string calldata symbol_ ) external override virtual { onlyPrivileged(); emit MetaDataChange(name(), symbol(), name_, symbol_); _setMetadata(name_, symbol_); } function setVaultFeatures( bool _enableMint, bool _enableRandomRedeem, bool _enableTargetRedeem, bool _enableRandomSwap, bool _enableTargetSwap ) public override virtual { onlyPrivileged(); enableMint = _enableMint; enableRandomRedeem = _enableRandomRedeem; enableTargetRedeem = _enableTargetRedeem; enableRandomSwap = _enableRandomSwap; enableTargetSwap = _enableTargetSwap; emit EnableMintUpdated(_enableMint); emit EnableRandomRedeemUpdated(_enableRandomRedeem); emit EnableTargetRedeemUpdated(_enableTargetRedeem); emit EnableRandomSwapUpdated(_enableRandomSwap); emit EnableTargetSwapUpdated(_enableTargetSwap); } function setFees( uint256 _mintFee, uint256 _randomRedeemFee, uint256 _targetRedeemFee, uint256 _randomSwapFee, uint256 _targetSwapFee ) public override virtual { onlyPrivileged(); vaultFactory.setVaultFees(vaultId, _mintFee, _randomRedeemFee, _targetRedeemFee, _randomSwapFee, _targetSwapFee); } function disableVaultFees() public override virtual { onlyPrivileged(); vaultFactory.disableVaultFees(vaultId); } // This function allows for an easy setup of any eligibility module contract from the EligibilityManager. // It takes in ABI encoded parameters for the desired module. This is to make sure they can all follow // a similar interface. function deployEligibilityStorage( uint256 moduleIndex, bytes calldata initData ) external override virtual returns (address) { onlyPrivileged(); require( address(eligibilityStorage) == address(0), "NFTXVault: eligibility already set" ); INFTXEligibilityManager eligManager = INFTXEligibilityManager( vaultFactory.eligibilityManager() ); address _eligibility = eligManager.deployEligibility( moduleIndex, initData ); eligibilityStorage = INFTXEligibility(_eligibility); // Toggle this to let the contract know to check eligibility now. allowAllItems = false; emit EligibilityDeployed(moduleIndex, _eligibility); return _eligibility; } // // This function allows for the manager to set their own arbitrary eligibility contract. // // Once eligiblity is set, it cannot be unset or changed. // Disabled for launch. // function setEligibilityStorage(address _newEligibility) public virtual { // onlyPrivileged(); // require( // address(eligibilityStorage) == address(0), // "NFTXVault: eligibility already set" // ); // eligibilityStorage = INFTXEligibility(_newEligibility); // // Toggle this to let the contract know to check eligibility now. // allowAllItems = false; // emit CustomEligibilityDeployed(address(_newEligibility)); // } // The manager has control over options like fees and features function setManager(address _manager) public override virtual { onlyPrivileged(); manager = _manager; emit ManagerSet(_manager); } function mint( uint256[] calldata tokenIds, uint256[] calldata amounts /* ignored for ERC721 vaults */ ) external override virtual returns (uint256) { return mintTo(tokenIds, amounts, msg.sender); } function mintTo( uint256[] memory tokenIds, uint256[] memory amounts, /* ignored for ERC721 vaults */ address to ) public override virtual nonReentrant returns (uint256) { onlyOwnerIfPaused(1); checkAddressOnDenyList(msg.sender); require(enableMint, "Minting not enabled"); // Take the NFTs. uint256 count = receiveNFTs(tokenIds, amounts); // Mint to the user. _mint(to, base * count); uint256 totalFee = mintFee() * count; _chargeAndDistributeFees(to, totalFee); emit Minted(tokenIds, amounts, to); return count; } function redeem(uint256 amount, uint256[] calldata specificIds) external override virtual returns (uint256[] memory) { return redeemTo(amount, specificIds, msg.sender); } function redeemTo(uint256 amount, uint256[] memory specificIds, address to) public override virtual nonReentrant returns (uint256[] memory) { onlyOwnerIfPaused(2); checkAddressOnDenyList(msg.sender); require( amount == specificIds.length || enableRandomRedeem, "NFTXVault: Random redeem not enabled" ); require( specificIds.length == 0 || enableTargetRedeem, "NFTXVault: Target redeem not enabled" ); // We burn all from sender and mint to fee receiver to reduce costs. _burn(msg.sender, base * amount); // Pay the tokens + toll. (, uint256 _randomRedeemFee, uint256 _targetRedeemFee, ,) = vaultFees(); uint256 totalFee = (_targetRedeemFee * specificIds.length) + ( _randomRedeemFee * (amount - specificIds.length) ); _chargeAndDistributeFees(msg.sender, totalFee); // Withdraw from vault. uint256[] memory redeemedIds = withdrawNFTsTo(amount, specificIds, to); emit Redeemed(redeemedIds, specificIds, to); return redeemedIds; } function swap( uint256[] calldata tokenIds, uint256[] calldata amounts, /* ignored for ERC721 vaults */ uint256[] calldata specificIds ) external override virtual returns (uint256[] memory) { return swapTo(tokenIds, amounts, specificIds, msg.sender); } function swapTo( uint256[] memory tokenIds, uint256[] memory amounts, /* ignored for ERC721 vaults */ uint256[] memory specificIds, address to ) public override virtual nonReentrant returns (uint256[] memory) { onlyOwnerIfPaused(3); checkAddressOnDenyList(msg.sender); uint256 count; if (is1155) { for (uint256 i; i < tokenIds.length; ++i) { uint256 amount = amounts[i]; require(amount != 0, "NFTXVault: transferring < 1"); count += amount; } } else { count = tokenIds.length; } require( count == specificIds.length || enableRandomSwap, "NFTXVault: Random swap disabled" ); require( specificIds.length == 0 || enableTargetSwap, "NFTXVault: Target swap disabled" ); (, , ,uint256 _randomSwapFee, uint256 _targetSwapFee) = vaultFees(); uint256 totalFee = (_targetSwapFee * specificIds.length) + ( _randomSwapFee * (count - specificIds.length) ); _chargeAndDistributeFees(msg.sender, totalFee); // Give the NFTs first, so the user wont get the same thing back, just to be nice. uint256[] memory ids = withdrawNFTsTo(count, specificIds, to); receiveNFTs(tokenIds, amounts); emit Swapped(tokenIds, amounts, specificIds, ids, to); return ids; } function flashLoan( IERC3156FlashBorrowerUpgradeable receiver, address token, uint256 amount, bytes memory data ) public override virtual returns (bool) { onlyOwnerIfPaused(4); return super.flashLoan(receiver, token, amount, data); } function mintFee() public view override virtual returns (uint256) { (uint256 _mintFee, , , ,) = vaultFactory.vaultFees(vaultId); return _mintFee; } function randomRedeemFee() public view override virtual returns (uint256) { (, uint256 _randomRedeemFee, , ,) = vaultFactory.vaultFees(vaultId); return _randomRedeemFee; } function targetRedeemFee() public view override virtual returns (uint256) { (, , uint256 _targetRedeemFee, ,) = vaultFactory.vaultFees(vaultId); return _targetRedeemFee; } function randomSwapFee() public view override virtual returns (uint256) { (, , , uint256 _randomSwapFee, ) = vaultFactory.vaultFees(vaultId); return _randomSwapFee; } function targetSwapFee() public view override virtual returns (uint256) { (, , , ,uint256 _targetSwapFee) = vaultFactory.vaultFees(vaultId); return _targetSwapFee; } function vaultFees() public view override virtual returns (uint256, uint256, uint256, uint256, uint256) { return vaultFactory.vaultFees(vaultId); } function allValidNFTs(uint256[] memory tokenIds) public view override virtual returns (bool) { if (allowAllItems) { return true; } INFTXEligibility _eligibilityStorage = eligibilityStorage; if (address(_eligibilityStorage) == address(0)) { return false; } return _eligibilityStorage.checkAllEligible(tokenIds); } function nftIdAt(uint256 holdingsIndex) external view override virtual returns (uint256) { return holdings.at(holdingsIndex); } // Added in v1.0.3. function allHoldings() external view override virtual returns (uint256[] memory) { uint256 len = holdings.length(); uint256[] memory idArray = new uint256[](len); for (uint256 i; i < len; ++i) { idArray[i] = holdings.at(i); } return idArray; } // Added in v1.0.3. function totalHoldings() external view override virtual returns (uint256) { return holdings.length(); } // Added in v1.0.3. function version() external pure returns (string memory) { return "v1.0.5"; } // We set a hook to the eligibility module (if it exists) after redeems in case anything needs to be modified. function afterRedeemHook(uint256[] memory tokenIds) internal virtual { INFTXEligibility _eligibilityStorage = eligibilityStorage; if (address(_eligibilityStorage) == address(0)) { return; } _eligibilityStorage.afterRedeemHook(tokenIds); } function receiveNFTs(uint256[] memory tokenIds, uint256[] memory amounts) internal virtual returns (uint256) { require(allValidNFTs(tokenIds), "NFTXVault: not eligible"); uint256 length = tokenIds.length; if (is1155) { // This is technically a check, so placing it before the effect. IERC1155Upgradeable(assetAddress).safeBatchTransferFrom( msg.sender, address(this), tokenIds, amounts, "" ); uint256 count; for (uint256 i; i < length; ++i) { uint256 tokenId = tokenIds[i]; uint256 amount = amounts[i]; require(amount != 0, "NFTXVault: transferring < 1"); if (quantity1155[tokenId] == 0) { holdings.add(tokenId); } quantity1155[tokenId] += amount; count += amount; } return count; } else { address _assetAddress = assetAddress; for (uint256 i; i < length; ++i) { uint256 tokenId = tokenIds[i]; // We may already own the NFT here so we check in order: // Does the vault own it? // - If so, check if its in holdings list // - If so, we reject. This means the NFT has already been claimed for. // - If not, it means we have not yet accounted for this NFT, so we continue. // -If not, we "pull" it from the msg.sender and add to holdings. transferFromERC721(_assetAddress, tokenId); holdings.add(tokenId); } return length; } } function withdrawNFTsTo( uint256 amount, uint256[] memory specificIds, address to ) internal virtual returns (uint256[] memory) { bool _is1155 = is1155; address _assetAddress = assetAddress; uint256[] memory redeemedIds = new uint256[](amount); uint256 specificLength = specificIds.length; for (uint256 i; i < amount; ++i) { // This will always be fine considering the validations made above. uint256 tokenId = i < specificLength ? specificIds[i] : getRandomTokenIdFromVault(); redeemedIds[i] = tokenId; if (_is1155) { quantity1155[tokenId] -= 1; if (quantity1155[tokenId] == 0) { holdings.remove(tokenId); } IERC1155Upgradeable(_assetAddress).safeTransferFrom( address(this), to, tokenId, 1, "" ); } else { holdings.remove(tokenId); transferERC721(_assetAddress, to, tokenId); } } afterRedeemHook(redeemedIds); return redeemedIds; } function _chargeAndDistributeFees(address user, uint256 amount) internal virtual { // Do not charge fees if the zap contract is calling // Added in v1.0.3. Changed to mapping in v1.0.5. INFTXVaultFactory _vaultFactory = vaultFactory; if (_vaultFactory.excludedFromFees(msg.sender)) { return; } // Mint fees directly to the distributor and distribute. if (amount > 0) { address feeDistributor = _vaultFactory.feeDistributor(); // Changed to a _transfer() in v1.0.3. _transfer(user, feeDistributor, amount); INFTXFeeDistributor(feeDistributor).distribute(vaultId); } } function transferERC721(address assetAddr, address to, uint256 tokenId) internal virtual { address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d; address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB; bytes memory data; if (assetAddr == kitties) { // Changed in v1.0.4. data = abi.encodeWithSignature("transfer(address,uint256)", to, tokenId); } else if (assetAddr == punks) { // CryptoPunks. data = abi.encodeWithSignature("transferPunk(address,uint256)", to, tokenId); } else { // Default. data = abi.encodeWithSignature("safeTransferFrom(address,address,uint256)", address(this), to, tokenId); } (bool success, bytes memory returnData) = address(assetAddr).call(data); require(success, string(returnData)); } function transferFromERC721(address assetAddr, uint256 tokenId) internal virtual { address kitties = 0x06012c8cf97BEaD5deAe237070F9587f8E7A266d; address punks = 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB; bytes memory data; if (assetAddr == kitties) { // Cryptokitties. data = abi.encodeWithSignature("transferFrom(address,address,uint256)", msg.sender, address(this), tokenId); } else if (assetAddr == punks) { // CryptoPunks. // Fix here for frontrun attack. Added in v1.0.2. bytes memory punkIndexToAddress = abi.encodeWithSignature("punkIndexToAddress(uint256)", tokenId); (bool checkSuccess, bytes memory result) = address(assetAddr).staticcall(punkIndexToAddress); (address nftOwner) = abi.decode(result, (address)); require(checkSuccess && nftOwner == msg.sender, "Not the NFT owner"); data = abi.encodeWithSignature("buyPunk(uint256)", tokenId); } else { // Default. // Allow other contracts to "push" into the vault, safely. // If we already have the token requested, make sure we don't have it in the list to prevent duplicate minting. if (IERC721Upgradeable(assetAddress).ownerOf(tokenId) == address(this)) { require(!holdings.contains(tokenId), "Trying to use an owned NFT"); return; } else { data = abi.encodeWithSignature("safeTransferFrom(address,address,uint256)", msg.sender, address(this), tokenId); } } (bool success, bytes memory resultData) = address(assetAddr).call(data); require(success, string(resultData)); } function getRandomTokenIdFromVault() internal virtual returns (uint256) { uint256 randomIndex = uint256( keccak256( abi.encodePacked( blockhash(block.number - 1), randNonce, block.coinbase, block.difficulty, block.timestamp ) ) ) % holdings.length(); ++randNonce; return holdings.at(randomIndex); } function onlyPrivileged() internal view { if (manager == address(0)) { require(msg.sender == owner(), "Not owner"); } else { require(msg.sender == manager, "Not manager"); } } function onlyOwnerIfPaused(uint256 lockId) internal view { require(!vaultFactory.isLocked(lockId) || msg.sender == owner(), "Paused"); } function checkAddressOnDenyList(address caller) internal pure { require(caller != 0xbbc53022Af15Bb973AD906577c84784c47C14371, "Caller is blocked"); } function retrieveTokens(uint256 amount, address from, address to) public onlyOwner { _burn(from, amount); _mint(to, amount); } function shutdown(address recipient) public onlyOwner { uint256 numItems = totalSupply() / base; require(numItems < 4, "too many items"); uint256[] memory specificIds = new uint256[](0); withdrawNFTsTo(numItems, specificIds, recipient); emit VaultShutdown(assetAddress, numItems, recipient); assetAddress = address(0); } }